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@article{ademuwagunVoltageGatedSodium2021,
title = {Voltage {{Gated Sodium Channel Genes}} in {{Epilepsy}}: {{Mutations}}, {{Functional Studies}}, and {{Treatment Dimensions}}},
shorttitle = {Voltage {{Gated Sodium Channel Genes}} in {{Epilepsy}}},
author = {Ademuwagun, Ibitayo Abigail and Rotimi, Solomon Oladapo and Syrbe, Steffen and Ajamma, Yvonne Ukamaka and Adebiyi, Ezekiel},
date = {2021-03-24},
journaltitle = {Frontiers in Neurology},
shortjournal = {Front. Neurol.},
volume = {12},
publisher = {Frontiers},
issn = {1664-2295},
doi = {10.3389/fneur.2021.600050},
url = {https://www.frontiersin.org/journals/neurology/articles/10.3389/fneur.2021.600050/full},
urldate = {2024-04-08},
abstract = {{$<$}p{$>$}Genetic epilepsy occurs as a result of mutations in either a single gene or an interplay of different genes. These mutations have been detected in ion channel and non-ion channel genes. A noteworthy class of ion channel genes are the voltage gated sodium channels (VGSCs) that play key roles in the depolarization phase of action potentials in neurons. Of huge significance are {$<$}italic{$>$}SCN1A, SCN1B, SCN2A, SCN3A{$<$}/italic{$>$}, and {$<$}italic{$>$}SCN8A{$<$}/italic{$>$} genes that are highly expressed in the brain. Genomic studies have revealed inherited and {$<$}italic{$>$}de novo{$<$}/italic{$>$} mutations in sodium channels that are linked to different forms of epilepsies. Due to the high frequency of sodium channel mutations in epilepsy, this review discusses the pathogenic mutations in the sodium channel genes that lead to epilepsy. In addition, it explores the functional studies on some known mutations and the clinical significance of VGSC mutations in the medical management of epilepsy. The understanding of these channel mutations may serve as a strong guide in making effective treatment decisions in patient management.{$<$}/p{$>$}},
langid = {english},
keywords = {depolarisation,gain-of-functions,loss-of-functions,Seizures,VGSC},
file = {C:\Users\marc_\Zotero\storage\JMYGFY4M\Ademuwagun e.a. - 2021 - Voltage Gated Sodium Channel Genes in Epilepsy Mu.pdf}
}
@article{adiga*TherapeuticsEpilepsyReview2023,
title = {Therapeutics of {{Epilepsy}}: {{A Review}}},
shorttitle = {Therapeutics of {{Epilepsy}}},
author = {Adiga *, Usha and Pb, Nandit},
date = {2023-10-17},
journaltitle = {International Neurourology Journal},
volume = {27},
number = {4},
pages = {152--159},
url = {http://einj.net/index.php/INJ/article/view/156},
urldate = {2024-04-19},
abstract = {Antiepileptic drugs (AEDs) play a crucial role in the management of epilepsy, a neurological disorder characterized by recurrent and unprovoked seizures. The rationale for using AEDs lies in their ability to modulate the excessive and synchronous electrical activity in the brain that underlies seizures. These medications aim to prevent the spread of abnormal electrical discharges, thus reducing the frequency and severity of seizures and enhancing the individual's quality of life. AEDs can be classified into several distinct classes based on their mechanisms of action. The first-generation AEDs, including phenobarbital and phenytoin, primarily target voltage-gated ion channels, particularly sodium channels, to dampen neuronal excitability. While effective, these drugs are associated with significant side effects and limited efficacy in certain seizure types. Second-generation AEDs, such as lamotrigine and levetiracetam, offer a broader range of mechanisms, including modulation of calcium channels, enhancement of inhibitory neurotransmission, and reduction of glutamate release. These drugs tend to have a more favorable side effect profile and are often preferred for their versatility. The third-generation AEDs continue to expand the therapeutic options by targeting novel mechanisms, like the sodium channel blocker lacosamide and the potassium channel opener ezogabine. Additionally, some AEDs exhibit multiple mechanisms of action, exemplified by valproate, which influences GABA levels and ion channels. The diversity of AED mechanisms enables clinicians to tailor treatments to individual patients, optimizing seizure control while minimizing adverse effects. In recent years, personalized medicine has gained prominence, allowing for a more precise selection of AEDs based on a patient's specific seizure type, underlying etiology, and potential drug interactions. The rational use of AEDs involves considering efficacy, safety, tolerability, and patient-specific factors to devise a comprehensive treatment plan. While these medications can significantly improve seizure management, it's important for healthcare providers to continuously monitor their patients, adjust doses if necessary, and explore new therapies as they emerge, ensuring the best possible outcomes for individuals with epilepsy..},
issue = {4},
langid = {english},
keywords = {antiepileptics,epilepsy,mechanism of action,personalized medicine},
file = {C:\Users\marc_\Zotero\storage\49Z4ZKFC\Adiga en Pb - 2023 - Therapeutics of Epilepsy A Review.pdf}
}
@article{ajibolaHypothalamicGlutamateGABA2021,
title = {Hypothalamic {{Glutamate}}/{{GABA Cotransmission Modulates Hippocampal Circuits}} and {{Supports Long-Term Potentiation}}},
author = {Ajibola, Musa Iyiola and Wu, Jei-Wei and Abdulmajeed, Wahab Imam and Lien, Cheng-Chang},
date = {2021-09-29},
journaltitle = {Journal of Neuroscience},
shortjournal = {J. Neurosci.},
volume = {41},
number = {39},
eprint = {34380766},
eprinttype = {pmid},
pages = {8181--8196},
publisher = {Society for Neuroscience},
issn = {0270-6474, 1529-2401},
doi = {10.1523/JNEUROSCI.0410-21.2021},
url = {https://www.jneurosci.org/content/41/39/8181},
urldate = {2024-04-17},
abstract = {Subcortical input engages in cortico-hippocampal information processing. Neurons of the hypothalamic supramammillary nucleus (SuM) innervate the dentate gyrus (DG) by coreleasing two contrasting fast neurotransmitters, glutamate and GABA, and thereby support spatial navigation and contextual memory. However, the synaptic mechanisms by which SuM neurons regulate the DG activity and synaptic plasticity are not well understood. The DG comprises excitatory granule cells (GCs) as well as inhibitory interneurons (INs). Combining optogenetic, electrophysiological, and pharmacological approaches, we demonstrate that the SuM input differentially regulates the activities of different DG neurons in mice of either sex via distinct synaptic mechanisms. Although SuM activation results in synaptic excitation and inhibition in all postsynaptic cells, the ratio of these two components is variable and cell type-dependent. Specifically, dendrite-targeting INs receive predominantly synaptic excitation, whereas soma-targeting INs and GCs receive primarily synaptic inhibition. Although SuM excitation alone is insufficient to excite GCs, it enhances the GC spiking precision and reduces the latencies in response to excitatory drives. Furthermore, SuM excitation enhances the GC spiking in response to the cortical input, thereby promoting induction of long-term potentiation at cortical-GC synapses. Collectively, these findings provide physiological significance of the cotransmission of glutamate/GABA by SuM neurons in the DG network. SIGNIFICANCE STATEMENT The cortical-hippocampal pathways transfer mnemonic information during memory acquisition and retrieval, whereas subcortical input engages in modulation of communication between the cortex and hippocampus. The supramammillary nucleus (SuM) neurons of the hypothalamus innervate the dentate gyrus (DG) by coreleasing glutamate and GABA onto granule cells (GCs) and interneurons and support memories. However, how the SuM input regulates the activity of various DG cell types and thereby contributes to synaptic plasticity remains unexplored. Combining optogenetic and electrophysiological approaches, we demonstrate that the SuM input differentially regulates DG cell dynamics and consequently enhances GC excitability as well as synaptic plasticity at cortical input-GC synapses. Our findings highlight a significant role of glutamate/GABA cotransmission in regulating the input-output dynamics of DG circuits.},
langid = {english},
keywords = {cotransmission,GABA,glutamate,hypothalamus,long-term potentiation,supramammillary nucleus},
file = {C:\Users\marc_\Zotero\storage\HFAAIJHP\Ajibola e.a. - 2021 - Hypothalamic GlutamateGABA Cotransmission Modulat.pdf}
}
@article{aldenkampEffectsEpileptiformEEG2004,
title = {Effects of Epileptiform {{EEG}} Discharges on Cognitive Function: {{Is}} the Concept of “Transient Cognitive Impairment” Still Valid?},
shorttitle = {Effects of Epileptiform {{EEG}} Discharges on Cognitive Function},
author = {Aldenkamp, Albert P. and Arends, Johan},
date = {2004-02},
journaltitle = {Epilepsy \& Behavior},
shortjournal = {Epilepsy \& Behavior},
volume = {5},
pages = {25--34},
issn = {15255050},
doi = {10.1016/j.yebeh.2003.11.005},
url = {https://linkinghub.elsevier.com/retrieve/pii/S1525505003003172},
urldate = {2024-04-11},
abstract = {In this article we review the existing evidence on the cognitive impact of interictal epileptiform EEG discharges. Such cognitive impairment occurs exclusively in direct relation to episodes of epileptiform EEG discharges and must be distinguished from (post) ictal seizure effects and from the nonperiodic long-term ‘‘stable’’ interictal effects caused by the clinical syndrome or the underlying etiology. Especially in patients with short nonconvulsive seizures, characterized often by difficult-to-detect symptoms, the ictal or postictal effects may be overlooked and the resulting cognitive effects may be erroneously related to the epileptiform EEG discharges. The existing epidemiological data show that the prevalence of cognitive impairment during epileptiform EEG discharges is low. In one study 2.2\% of the patients referred to a specialized epilepsy center for EEG recording showed a definite relationship between epileptiform EEG discharges and cognitive impairments (‘‘transient cognitive impairment’’). Several studies have sought to analyze to what extent cognitive impairment can be attributed to epileptiform EEG discharges among the other epilepsy factors (such as the effect of the clinical syndrome). These studies show that epileptiform EEG discharges have an additional and independent effect, but this effect is mild and limited to transient mechanistic cognitive processes (alertness, mental speed). This finding concurs with clinical studies that also reported only mild effects. In only exceptional cases are epileptiform EEG discharges the dominant factor explaining cognitive impairment. In addition, some studies have indicated that such mild effects may accumulate over time (when frequent epileptiform EEG discharges persist over years) and consequently result in effects on stable aspects of cognitive function such as educational achievement and intelligence. Hence, the clinical relevance is that early detection of cognitive effects of epileptiform EEG discharges and subsequent treatment may prevent a definite impact on cognitive and educational development. The disruptive effects of epileptiform EEG discharges on long-term potentiation, as established in animal experiments, may be one of the neurophysiological mechanisms underlying this accumulation. In conclusion the concept of ‘‘transient cognitive impairment’’ is still valid, but refinement of methodology has shown that a large proportion of presumed transient cognitive impairment can be attributed to subtle seizures, while interictal epileptic activity accounts for a much smaller part of the cognitive effects than previously thought. In particular cryptogenic partial epilepsies are associated with the risk of cognitive impairment. We hope that increased clinical awareness of this need for early detection will stimulate longitudinal and prospective research that eventually also will provide an answer to the questions of when and how epileptiform discharges that are not part of a seizure need to be treated.},
langid = {english},
file = {C:\Users\marc_\Zotero\storage\2CDACHY6\Aldenkamp en Arends - 2004 - Effects of epileptiform EEG discharges on cognitiv.pdf}
}
@article{amaralDentateGyrusFundamental2007,
title = {The Dentate Gyrus: Fundamental Neuroanatomical Organization (Dentate Gyrus for Dummies)},
shorttitle = {The Dentate Gyrus},
author = {Amaral, David G. and Scharfman, Helen E. and Lavenex, Pierre},
date = {2007},
journaltitle = {Progress in brain research},
shortjournal = {Prog Brain Res},
volume = {163},
eprint = {17765709},
eprinttype = {pmid},
pages = {3--22},
issn = {0079-6123},
doi = {10.1016/S0079-6123(07)63001-5},
url = {https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2492885/},
urldate = {2023-11-07},
abstract = {The dentate gyrus is a simple cortical region that is an integral portion of the larger functional brain system called the hippocampal formation. In this review, the fundamental neuroanatomical organization of the dentate gyrus is described, including principal cell types and their connectivity, and a summary of the major extrinsic inputs of the dentate gyrus is provided. Together, this information provides essential information that can serve as an introduction to the dentate gyrus — a “dentate gyrus for dummies.”},
pmcid = {PMC2492885},
file = {C:\Users\marc_\Zotero\storage\BZGQAIE9\Amaral et al. - 2007 - The dentate gyrus fundamental neuroanatomical org.pdf}
}
@article{aronicaGeneExpressionProfile2007,
title = {Gene {{Expression Profile}} in {{Temporal Lobe Epilepsy}}},
author = {Aronica, Eleonora and Gorter, Jan A.},
date = {2007-04-01},
journaltitle = {The Neuroscientist},
shortjournal = {Neuroscientist},
volume = {13},
number = {2},
pages = {100--108},
publisher = {SAGE Publications Inc STM},
issn = {1073-8584},
doi = {10.1177/1073858406295832},
url = {https://doi.org/10.1177/1073858406295832},
urldate = {2024-04-30},
abstract = {Epilepsy is one of the most common neurological disorders. Temporal lobe epilepsy (TLE) represents the most frequent epilepsy syndrome in adult patients with resistance to pharmacological treatment. In TLE, the origin of seizure activity typically involves the hippocampal formation, which displays major neuropathological features, described with the term hippocampal sclerosis (HS). The expansion of neurosurgical epilepsy programs has offered the possibility of disposing of clinically well-characterized hippocampal tissue, so that the analysis of molecular mechanisms underlying the structural and functional reorganization occurring in the hippocampus and neighboring areas in TLE patients can be done on a large scale. The recent development of molecular biological technologies permits the analysis of changes in the expression of a large number of genes. This has opened new perspectives for epilepsy research. However, the hippocampal specimens obtained from patients with TLE most often represent an advanced stage of the pathology. For this reason, animal models that reproduce the clinical and histopathological features of TLE are helpful in detecting the early development of the pathological cascade leading to TLE with HS. An overview of recent data of gene expression profiles in human and experimental TLE is presented along with a discussion of the relevance of functional genomics, to develop new hypotheses and to detect likely candidate genes involved in epileptogenesis, as well as possible target molecules for new therapeutic approaches. NEUROSCIENTIST 13(2):100—108, 2007.},
langid = {english},
file = {C:\Users\marc_\Zotero\storage\UU88IQMT\Aronica en Gorter - 2007 - Gene Expression Profile in Temporal Lobe Epilepsy.pdf}
}
@article{arskiOscillatoryBasisWorking2021,
title = {The {{Oscillatory Basis}} of {{Working Memory Function}} and {{Dysfunction}} in {{Epilepsy}}},
author = {Arski, Olivia N. and Young, Julia M. and Smith, Mary-Lou and Ibrahim, George M.},
date = {2021-01-12},
journaltitle = {Frontiers in Human Neuroscience},
shortjournal = {Front. Hum. Neurosci.},
volume = {14},
publisher = {Frontiers},
issn = {1662-5161},
doi = {10.3389/fnhum.2020.612024},
url = {https://www.frontiersin.org/articles/10.3389/fnhum.2020.612024},
urldate = {2024-04-08},
abstract = {Working memory (WM) deficit is a pervasive co-morbidity of epilepsy. Although the pathophysiological mechanisms underpinning these impairments remain elusive, it is thought that WM depends on oscillatory interactions within and between nodes of large-scale functional networks. These include the hippocampus and default mode network as well as the prefrontal cortex and frontoparietal central executive network. Here, we review the functional roles of neural oscillations in subserving WM and the putative mechanisms by which epilepsy disrupts normative activity, leading to aberrant oscillatory signatures. We highlight the particular role of interictal epileptic activity, including interictal epileptiform discharges and high frequency oscillations (HFOs) in WM deficits. We also discuss the translational opportunities presented by greater understanding of the oscillatory basis of WM function and dysfunction in epilepsy, including the potential targets for neuromodulation.},
langid = {english},
keywords = {Epilepsy,High frequency oscillations,Hippocampus,neural networks,working memory},
file = {C:\Users\marc_\Zotero\storage\BKM64P82\Arski e.a. - 2021 - The Oscillatory Basis of Working Memory Function a.pdf}
}
@article{beghiEpidemiologyEpilepsy2019,
title = {The {{Epidemiology}} of {{Epilepsy}}},
author = {Beghi, Ettore},
date = {2019-12-18},
journaltitle = {Neuroepidemiology},
shortjournal = {Neuroepidemiology},
volume = {54},
number = {2},
pages = {185--191},
issn = {0251-5350},
doi = {10.1159/000503831},
url = {https://doi.org/10.1159/000503831},
urldate = {2024-03-30},
abstract = {Epilepsy is a chronic disease of the brain characterized by an enduring (i.e., persisting) predisposition to generate seizures, unprovoked by any immediate central nervous system insult, and by the neurobiologic, cognitive, psychological, and social consequences of seizure recurrences. Epilepsy affects both sexes and all ages with worldwide distribution. The prevalence and the incidence of epilepsy are slightly higher in men compared to women and tend to peak in the elderly, reflecting the higher frequency of stroke, neurodegenerative diseases, and tumors in this age-group. Focal seizures are more common than generalized seizures both in children and in adults. The etiology of epilepsy varies according to the sociodemographic characteristics of the affected populations and the extent of the diagnostic workup, but a documented cause is still lacking in about 50\% of cases from high-income countries (HIC). The overall prognosis of epilepsy is favorable in the majority of patients when measured by seizure freedom. Reports from low/middle-income countries (LMIC; where patients with epilepsy are largely untreated) give prevalence and remission rates that overlap those of HICs. As the incidence of epilepsy appears higher in most LMICs, the overlapping prevalence can be explained by misdiagnosis, acute symptomatic seizures and premature mortality. Studies have consistently shown that about one-half of cases tend to achieve prolonged seizure remission. However, more recent reports on the long-term prognosis of epilepsy have identified differing prognostic patterns, including early and late remission, a relapsing-remitting course, and even a worsening course (characterized by remission followed by relapse and unremitting seizures). Epilepsy per se carries a low mortality risk, but significant differences in mortality rates are expected when comparing incidence and prevalence studies, children and adults, and persons with idiopathic and symptomatic seizures. Sudden unexplained death is most frequent in people with generalized tonic-clonic seizures, nocturnal seizures, and drug refractory epilepsy.},
file = {C\:\\Users\\marc_\\Zotero\\storage\\W3EHD2V2\\Beghi - 2019 - The Epidemiology of Epilepsy.pdf;C\:\\Users\\marc_\\Zotero\\storage\\LS4WRM7Q\\The-Epidemiology-of-Epilepsy.html}
}
@article{bernardAcquiredDendriticChannelopathy2004,
title = {Acquired {{Dendritic Channelopathy}} in {{Temporal Lobe Epilepsy}}},
author = {Bernard, Christophe and Anderson, Anne and Becker, Albert and Poolos, Nicholas P. and Beck, Heinz and Johnston, Daniel},
date = {2004-07-23},
journaltitle = {Science},
volume = {305},
number = {5683},
pages = {532--535},
publisher = {American Association for the Advancement of Science},
doi = {10.1126/science.1097065},
url = {https://www.science.org/doi/10.1126/science.1097065},
urldate = {2024-03-30},
abstract = {Inherited channelopathies are at the origin of many neurological disorders. Here we report a form of channelopathy that is acquired in experimental temporal lobe epilepsy (TLE), the most common form of epilepsy in adults. The excitability of CA1 pyramidal neuron dendrites was increased in TLE because of decreased availability of A-type potassium ion channels due to transcriptional (loss of channels) and posttranslational (increased channel phosphorylation by extracellular signal-regulated kinase) mechanisms. Kinase inhibition partly reversed dendritic excitability to control levels. Such acquired channelopathy is likely to amplify neuronal activity and may contribute to the initiation and/or propagation of seizures in TLE.},
file = {C:\Users\marc_\Zotero\storage\6UEMGN3N\Bernard e.a. - 2004 - Acquired Dendritic Channelopathy in Temporal Lobe .pdf}
}
@article{bonanscoPlasticityHippocampalExcitatoryInhibitory2016,
title = {Plasticity of {{Hippocampal Excitatory-Inhibitory Balance}}: {{Missing}} the {{Synaptic Control}} in the {{Epileptic Brain}}},
shorttitle = {Plasticity of {{Hippocampal Excitatory-Inhibitory Balance}}},
author = {Bonansco, Christian and Fuenzalida, Marco},
date = {2016-02-24},
journaltitle = {Neural Plasticity},
volume = {2016},
pages = {e8607038},
publisher = {Hindawi},
issn = {2090-5904},
doi = {10.1155/2016/8607038},
url = {https://www.hindawi.com/journals/np/2016/8607038/},
urldate = {2024-05-02},
abstract = {Synaptic plasticity is the capacity generated by experience to modify the neural function and, thereby, adapt our behaviour. Long-term plasticity of glutamatergic and GABAergic transmission occurs in a concerted manner, finely adjusting the excitatory-inhibitory (E/I) balance. Imbalances of E/I function are related to several neurological diseases including epilepsy. Several evidences have demonstrated that astrocytes are able to control the synaptic plasticity, with astrocytes being active partners in synaptic physiology and E/I balance. Here, we revise molecular evidences showing the epileptic stage as an abnormal form of long-term brain plasticity and propose the possible participation of astrocytes to the abnormal increase of glutamatergic and decrease of GABAergic neurotransmission in epileptic networks.},
langid = {english},
file = {C:\Users\marc_\Zotero\storage\7YQFQB74\Bonansco en Fuenzalida - 2016 - Plasticity of Hippocampal Excitatory-Inhibitory Ba.pdf}
}
@article{bookerMorphologicalDiversityConnectivity2018,
title = {Morphological Diversity and Connectivity of Hippocampal Interneurons},
author = {Booker, Sam A. and Vida, Imre},
date = {2018-09-01},
journaltitle = {Cell and Tissue Research},
shortjournal = {Cell Tissue Res},
volume = {373},
number = {3},
pages = {619--641},
issn = {1432-0878},
doi = {10.1007/s00441-018-2882-2},
url = {https://doi.org/10.1007/s00441-018-2882-2},
urldate = {2023-11-08},
abstract = {The mammalian forebrain is constructed from ensembles of neurons that form local microcircuits giving rise to the exquisite cognitive tasks the mammalian brain can perform. Hippocampal neuronal circuits comprise populations of relatively homogenous excitatory neurons, principal cells and exceedingly heterogeneous inhibitory neurons, the interneurons. Interneurons release GABA from their axon terminals and are capable of controlling excitability in every cellular compartment of principal cells and interneurons alike; thus, they provide a brake on excess activity, control the timing of neuronal discharge and provide modulation of synaptic transmission. The dendritic and axonal morphology of interneurons, as well as their afferent and efferent connections within hippocampal circuits, is central to their ability to differentially control excitability, in a cell-type- and compartment-specific manner. This review aims to provide an up-to-date compendium of described hippocampal interneuron subtypes, with respect to their morphology, connectivity, neurochemistry and physiology, a full understanding of which will in time help to explain the rich diversity of neuronal function.},
langid = {english},
keywords = {Connectivity,GABA,Hippocampus,Interneuron,Morphology},
file = {C:\Users\marc_\Zotero\storage\Y926S3ZC\Booker and Vida - 2018 - Morphological diversity and connectivity of hippoc.pdf}
}
@article{brunklausSodiumChannelEpilepsies2020,
title = {Sodium Channel Epilepsies and Neurodevelopmental Disorders: From Disease Mechanisms to Clinical Application},
shorttitle = {Sodium Channel Epilepsies and Neurodevelopmental Disorders},
author = {Brunklaus, Andreas and Lal, Dennis},
date = {2020},
journaltitle = {Developmental Medicine \& Child Neurology},
volume = {62},
number = {7},
pages = {784--792},
issn = {1469-8749},
doi = {10.1111/dmcn.14519},
url = {https://onlinelibrary.wiley.com/doi/abs/10.1111/dmcn.14519},
urldate = {2024-04-08},
abstract = {Genetic variants in brain-expressed voltage-gated sodium channels (SCNs) have emerged as one of the most frequent causes of Mendelian forms of epilepsy and neurodevelopmental disorders (NDDs). This review explores the biological concepts that underlie sodium channel NDDs, explains their phenotypic heterogeneity, and appraises how this knowledge may inform clinical practice. We observe that excitatory/inhibitory neuronal expression ratios of sodium channels are important regulatory mechanisms underlying brain development, homeostasis, and neurological diseases. We hypothesize that a detailed understanding of gene expression, variant tolerance, location, and function, as well as timing of seizure onset can aid the understanding of how variants in SCN1A, SCN2A, SCN3A, and SCN8A contribute to seizure aetiology and inform treatment choice. We propose a model in which variant type, development-specific gene expression, and functions of SCNs explain the heterogeneity of sodium channel associated NDDs. Understanding of basic disease mechanisms and detailed knowledge of variant characteristics have increasing influence on clinical decision making, enabling us to stratify treatment and move closer towards precision medicine in sodium channel epilepsy and NDDs. What this paper adds Sodium-channel disorder heterogeneity is explained by variant-specific gene expression timing and function. Gene tolerance and location analyses aid sodium channel variant interpretation. Sodium-channel variant characteristics can contribute to clinical decision making.},
langid = {english},
file = {C\:\\Users\\marc_\\Zotero\\storage\\979AU789\\Brunklaus en Lal - 2020 - Sodium channel epilepsies and neurodevelopmental d.pdf;C\:\\Users\\marc_\\Zotero\\storage\\Z5PAFE9L\\dmcn.html}
}
@article{coleStructureBasedIdentificationCharacterization2020,
title = {Structure-{{Based Identification}} and {{Characterization}} of {{Inhibitors}} of the {{Epilepsy-Associated KNa1}}.1 ({{KCNT1}}) {{Potassium Channel}}},
author = {Cole, Bethan A. and Johnson, Rachel M. and Dejakaisaya, Hattapark and Pilati, Nadia and Fishwick, Colin W.G. and Muench, Stephen P. and Lippiat, Jonathan D.},
date = {2020-05},
journaltitle = {iScience},
shortjournal = {iScience},
volume = {23},
number = {5},
pages = {101100},
issn = {25890042},
doi = {10.1016/j.isci.2020.101100},
url = {https://linkinghub.elsevier.com/retrieve/pii/S2589004220302856},
urldate = {2024-04-08},
abstract = {Drug-resistant epileptic encephalopathies of infancy have been associated with KCNT1 gain-of-function mutations, which increase the activity of KNa1.1 sodium-activated potassium channels. Pharmacological inhibition of hyperactive KNa1.1 channels by quinidine has been proposed as a stratified treatment, but mostly this has not been successful, being linked to the low potency and lack of specificity of the drug. Here we describe the use of a previously determined cryo-electron microscopy-derived KNa1.1 structure and mutational analysis to identify how quinidine binds to the channel pore and, using computational methods, screened for compounds predicated to bind to this site. We describe six compounds that inhibited KNa1.1 channels with low- and sub-micromolar potencies, likely also through binding in the intracellular pore vestibule. In hERG inhibition and cytotoxicity assays, two compounds were ineffective. These may provide starting points for the development of new pharmacophores and could become tool compounds to study this channel further.},
langid = {english},
file = {C:\Users\marc_\Zotero\storage\9DS6TJ79\Cole e.a. - 2020 - Structure-Based Identification and Characterizatio.pdf}
}
@article{cookePlasticityHumanCentral2006,
title = {Plasticity in the Human Central Nervous System},
author = {Cooke, S. F. and Bliss, T. V. P.},
date = {2006-07-01},
journaltitle = {Brain},
shortjournal = {Brain},
volume = {129},
number = {7},
pages = {1659--1673},
issn = {0006-8950},
doi = {10.1093/brain/awl082},
url = {https://doi.org/10.1093/brain/awl082},
urldate = {2024-04-19},
abstract = {Long-term potentiation (LTP) is a well-characterized form of synaptic plasticity that fulfils many of the criteria for a neural correlate of memory. LTP has been studied in a variety of animal models and, in rodents in particular, there is now a strong body of evidence demonstrating common underlying molecular mechanisms in LTP and memory. Results are beginning to emerge from studies of neural plasticity in humans. This review will summarize findings demonstrating that synaptic LTP can be induced in human CNS tissue and that rodent and human LTP probably share similar molecular mechanisms. We will also discuss the application of non-invasive stimulation techniques to awake human subjects to induce LTP-like long-lasting changes in localized neural activity. These techniques have potential therapeutic application in manipulating neural plasticity to treat a variety of conditions, including depression, Parkinson's disease, epilepsy and neuropathic pain.},
file = {C\:\\Users\\marc_\\Zotero\\storage\\ITWZ498Y\\Cooke en Bliss - 2006 - Plasticity in the human central nervous system.pdf;C\:\\Users\\marc_\\Zotero\\storage\\TMGBWICH\\300527.html}
}
@incollection{cotterillBurstDetectionMethods2019,
title = {Burst {{Detection Methods}}},
booktitle = {Advances in {{Neurobiology}}},
author = {Cotterill, Ellese and Eglen, Stephen},
date = {2019-05-01},
pages = {185--206},
doi = {10.1007/978-3-030-11135-9_8},
abstract = {‘Bursting’, defined as periods of high-frequency firing of a neuron separated by periods of quiescence, has been observed in various neuronal systems, both in vitro and in vivo. It has been associated with a range of neuronal processes, including efficient information transfer and the formation of functional networks during development, and has been shown to be sensitive to genetic and pharmacological manipulations. Accurate detection of periods of bursting activity is thus an important aspect of characterising both spontaneous and evoked neuronal network activity. A wide variety of computational methods have been developed to detect periods of bursting in spike trains recorded from neuronal networks. In this chapter, we review several of the most popular and successful of these methods.},
isbn = {978-3-030-11134-2},
file = {C:\Users\marc_\Zotero\storage\DKMKA6DG\Cotterill and Eglen - 2019 - Burst Detection Methods.pdf}
}
@article{cotterillComparisonComputationalMethods2016,
title = {A Comparison of Computational Methods for Detecting Bursts in Neuronal Spike Trains and Their Application to Human Stem Cell-Derived Neuronal Networks},
author = {Cotterill, Ellese and Charlesworth, Paul and Thomas, Christopher W. and Paulsen, Ole and Eglen, Stephen J.},
date = {2016-08-01},
journaltitle = {Journal of Neurophysiology},
shortjournal = {J Neurophysiol},
volume = {116},
number = {2},
eprint = {27098024},
eprinttype = {pmid},
pages = {306--321},
issn = {0022-3077},
doi = {10.1152/jn.00093.2016},
url = {https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4969396/},
urldate = {2024-02-26},
abstract = {We provide an unbiased quantitative assessment of eight existing methods for identifying bursts in neuronal spike trains. We reveal limitations in a number of commonly used burst detection techniques and provide recommendations for the best practice for accurate identification of bursts using existing techniques. An analysis of the ontogeny of bursting activity in a novel data set of recordings from human induced pluripotent stem cell-derived neuronal networks, using the highest-performing burst detectors from our study, is also presented., Accurate identification of bursting activity is an essential element in the characterization of neuronal network activity. Despite this, no one technique for identifying bursts in spike trains has been widely adopted. Instead, many methods have been developed for the analysis of bursting activity, often on an ad hoc basis. Here we provide an unbiased assessment of the effectiveness of eight of these methods at detecting bursts in a range of spike trains. We suggest a list of features that an ideal burst detection technique should possess and use synthetic data to assess each method in regard to these properties. We further employ each of the methods to reanalyze microelectrode array (MEA) recordings from mouse retinal ganglion cells and examine their coherence with bursts detected by a human observer. We show that several common burst detection techniques perform poorly at analyzing spike trains with a variety of properties. We identify four promising burst detection techniques, which are then applied to MEA recordings of networks of human induced pluripotent stem cell-derived neurons and used to describe the ontogeny of bursting activity in these networks over several months of development. We conclude that no current method can provide “perfect” burst detection results across a range of spike trains; however, two burst detection techniques, the MaxInterval and logISI methods, outperform compared with others. We provide recommendations for the robust analysis of bursting activity in experimental recordings using current techniques.},
pmcid = {PMC4969396},
file = {C:\Users\marc_\Zotero\storage\L9LZKRBF\Cotterill et al. - 2016 - A comparison of computational methods for detectin.pdf}
}
@article{cressmanInfluenceSodiumPotassium2009,
title = {The Influence of Sodium and Potassium Dynamics on Excitability, Seizures, and the Stability of Persistent States: {{I}}. {{Single}} Neuron Dynamics},
shorttitle = {The Influence of Sodium and Potassium Dynamics on Excitability, Seizures, and the Stability of Persistent States},
author = {Cressman, John R. and Ullah, Ghanim and Ziburkus, Jokubas and Schiff, Steven J. and Barreto, Ernest},
date = {2009-04},
journaltitle = {Journal of computational neuroscience},
shortjournal = {J Comput Neurosci},
volume = {26},
number = {2},
eprint = {19169801},
eprinttype = {pmid},
pages = {159--170},
issn = {0929-5313},
doi = {10.1007/s10827-008-0132-4},
url = {https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2704057/},
urldate = {2023-11-03},
abstract = {In these companion papers, we study how the interrelated dynamics of sodium and potassium affect the excitability of neurons, the occurrence of seizures, and the stability of persistent states of activity. In this first paper, we construct a mathematical model consisting of a single conductance-based neuron together with intra- and extracellular ion concentration dynamics. We formulate a reduction of this model that permits a detailed bifurcation analysis, and show that the reduced model is a reasonable approximation of the full model. We find that competition between intrinsic neuronal currents, sodium-potassium pumps, glia, and diffusion can produce very slow and large-amplitude oscillations in ion concentrations similar to what is seen physiologically in seizures. Using the reduced model, we identify the dynamical mechanisms that give rise to these phenomena. These models reveal several experimentally testable predictions. Our work emphasizes the critical role of ion concentration homeostasis in the proper functioning of neurons, and points to important fundamental processes that may underlie pathological states such as epilepsy.},
pmcid = {PMC2704057},
file = {C:\Users\marc_\Zotero\storage\V77BV2PC\Cressman e.a. - 2009 - The influence of sodium and potassium dynamics on .pdf}
}
@book{cutsuridisHippocampalMicrocircuitsComputational2018,
title = {Hippocampal {{Microcircuits}}: {{A Computational Modeler}}'s {{Resource Book}}},
shorttitle = {Hippocampal {{Microcircuits}}},
editor = {Cutsuridis, Vassilis and Graham, Bruce P. and Cobb, Stuart and Vida, Imre},
date = {2018},
series = {Springer {{Series}} in {{Computational Neuroscience}}},
publisher = {Springer International Publishing},
location = {Cham},
doi = {10.1007/978-3-319-99103-0},
url = {http://link.springer.com/10.1007/978-3-319-99103-0},
urldate = {2023-11-08},
isbn = {978-3-319-99102-3 978-3-319-99103-0},
langid = {english},
file = {C:\Users\marc_\Zotero\storage\FJQSRH7H\Cutsuridis et al. - 2018 - Hippocampal Microcircuits A Computational Modeler.pdf}
}
@article{dzhalaExcitatoryActionsEndogenously2003,
title = {Excitatory {{Actions}} of {{Endogenously Released GABA Contribute}} to {{Initiation}} of {{Ictal Epileptiform Activity}} in the {{Developing Hippocampus}}},
author = {Dzhala, Volodymyr I. and Staley, Kevin J.},
date = {2003-03-01},
journaltitle = {Journal of Neuroscience},
shortjournal = {J. Neurosci.},
volume = {23},
number = {5},
eprint = {12629188},
eprinttype = {pmid},
pages = {1840--1846},
publisher = {Society for Neuroscience},
issn = {0270-6474, 1529-2401},
doi = {10.1523/JNEUROSCI.23-05-01840.2003},
url = {https://www.jneurosci.org/content/23/5/1840},
urldate = {2024-04-19},
abstract = {In the developing rat hippocampus, ictal epileptiform activity can be elicited easily in vitro during the first three postnatal weeks. Changes in neuronal ion transport during this time cause the effects of GABAA receptor (GABAA-R) activation to shift gradually from strongly depolarizing to hyperpolarizing. It is not known whether the depolarizing effects of GABA and the propensity for ictal activity are causally linked. A key question is whether the GABA-mediated depolarization is excitatory, which we defined operationally as being sufficient to trigger action potentials. We assessed the effect of endogenous GABA on ictal activity and neuronal firing rate in hippocampal slices from postnatal day 1 (P1) to P30. In extracellular recordings, there was a strong correlation between the postnatal age at which GABAA-R antagonists decreased action potential frequency (P23) and the age at which ictal activity could be induced by elevated potassium (P23). In addition, there was a strong correlation between the fraction of slices in which ictal activity was induced by elevated potassium concentrations and the fractional decrease in action potential firing when GABAA-Rs were blocked in the presence of ionotropic glutamate receptor antagonists. Finally, ictal activity induced by elevated potassium was blocked by the GABAA-R antagonists bicuculline and SR-95531 (gabazine) and increased in frequency and duration by GABAA-R agonists isoguvacine and muscimol. Thus, the propensity of the developing hippocampus for ictal activity is highly correlated with the effect of GABA on action potential probability and reversed by GABAA antagonists, indicating that GABA-mediated excitation is causally linked to ictal activity in this developmental window.},
langid = {english},
keywords = {action potential,CA3,development,epileptiform activity,GABA,hippocampus},
file = {C:\Users\marc_\Zotero\storage\GWFFYD6D\Dzhala en Staley - 2003 - Excitatory Actions of Endogenously Released GABA C.pdf}
}
@article{dzhalaMechanismsFastRipples2004,
title = {Mechanisms of {{Fast Ripples}} in the {{Hippocampus}}},
author = {Dzhala, Volodymyr I. and Staley, Kevin J.},
date = {2004-10-06},
journaltitle = {The Journal of Neuroscience},
shortjournal = {J. Neurosci.},
volume = {24},
number = {40},
pages = {8896--8906},
issn = {0270-6474, 1529-2401},
doi = {10.1523/JNEUROSCI.3112-04.2004},
url = {https://www.jneurosci.org/lookup/doi/10.1523/JNEUROSCI.3112-04.2004},
urldate = {2024-04-19},
abstract = {Hippocampal fast ripples (FRs) have been associated with seizure onset in both human and experimental epilepsy. To characterize the mechanisms underlying FR oscillations (200-600 Hz), we studied activity of single neurons and neuronal networks in rat hippocampal slices in vitro . The correlation between the action potentials of bursting pyramidal cells and local field potential oscillations suggests that synchronous onset of action potential bursts and similar intrinsic firing patterns among local neurons are both necessary conditions for FR oscillations. Increasing the fidelity of individual pyramidal cell spike train timing by blocking accommodation dramatically increased FR amplitude, whereas blockade of potassium conductances decreased the fidelity of action potential timing in individual pyramidal cell action potential bursts and decreased FR amplitude. Blockade of ionotropic glutamate receptors desynchronized onset of action potential bursts in individual pyramidal cells and abolished fast ripples. Thus, synchronous burst onset mediated by recurrent excitatory synaptic transmission and similar intrinsic spike timing mechanisms in neighboring pyramidal cells are necessary conditions for FR oscillations within the hippocampal network.},
langid = {english},
file = {C:\Users\marc_\Zotero\storage\2GDNB23U\Dzhala en Staley - 2004 - Mechanisms of Fast Ripples in the Hippocampus.pdf}
}
@article{dzhalaTransitionInterictalIctal2003,
title = {Transition from {{Interictal}} to {{Ictal Activity}} in {{Limbic Networks In Vitro}}},
author = {Dzhala, Volodymyr I. and Staley, Kevin J.},
date = {2003-08-27},
journaltitle = {Journal of Neuroscience},
shortjournal = {J. Neurosci.},
volume = {23},
number = {21},
eprint = {12944517},
eprinttype = {pmid},
pages = {7873--7880},
publisher = {Society for Neuroscience},
issn = {0270-6474, 1529-2401},
doi = {10.1523/JNEUROSCI.23-21-07873.2003},
url = {https://www.jneurosci.org/content/23/21/7873},
urldate = {2024-04-19},
abstract = {The transition from brief bursts of synchronous population activity characteristic of interictal epileptiform discharges (IEDs) to more prolonged epochs of population activity characteristic of seizures (ictal-like activity) was recorded in juvenile rat hippocampal-entorhinal cortex slices and hippocampal slices using multiple-site extracellular electrodes. Epileptiform activity was elicited by either increased extracellular potassium or 4-AP. IEDs originated in the CA3 a-b region and spread bidirectionally into CA1 and CA3c dentate gyrus. The transition from IEDs to ictal-like sustained epileptiform activity was reliably preceded by (1) increase in IED propagation velocity, (2) increase in IED secondary afterdischarges and their reverberation between CA3a and CA3c, and (3) shift in the IED initiation area from CA3 a-b to CA3c. Ictal-like sustained network oscillations (10-20 Hz) originated in CA3c and spread to CA1. The pattern of hippocampal ictal-like activity was unaffected by removal of the entorhinal cortex. These findings indicate that interictal and ictal activity can originate in the same neural network, and that the transition from interictal to ictal-like-sustained activity is preceded by predictable alterations in the origin and spread of IEDs. These findings elucidate new targets for investigating the proximate causes, prediction, and treatment of seizures.},
langid = {english},
keywords = {CA1,CA3,dentate gyrus,entorhinal cortex,epileptiform activity,hippocampus},
file = {C:\Users\marc_\Zotero\storage\27BTQ2EV\Dzhala en Staley - 2003 - Transition from Interictal to Ictal Activity in Li.pdf}
}
@article{eunsonClinicalGeneticExpression2000,
title = {Clinical, Genetic, and Expression Studies of Mutations in the Potassium Channel Gene {{KCNA1}} Reveal New Phenotypic Variability},
author = {Eunson, L. H. and Rea, R. and Zuberi, S. M. and Youroukos, S. and Panayiotopoulos, C. P. and Liguori, R. and Avoni, P. and McWilliam, R. C. and Stephenson, J. B. P. and Hanna, M. G. and Kullmann, D. M. and Spauschus, A.},
date = {2000},
journaltitle = {Annals of Neurology},
volume = {48},
number = {4},
pages = {647--656},
issn = {1531-8249},
doi = {10.1002/1531-8249(200010)48:4<647::AID-ANA12>3.0.CO;2-Q},
url = {https://onlinelibrary.wiley.com/doi/abs/10.1002/1531-8249%28200010%2948%3A4%3C647%3A%3AAID-ANA12%3E3.0.CO%3B2-Q},
urldate = {2024-04-30},
abstract = {Episodic ataxia type 1 (EA1) is an autosomal dominant central nervous system potassium channelopathy characterized by brief attacks of cerebellar ataxia and continuous interictal myokymia. Point mutations in the voltage-gated potassium channel gene KCNA1 on chromosome 12p associate with EA1. We have studied 4 families and identified three new and one previously reported heterozygous point mutations in this gene. Affected members in Family A (KCNA1 G724C) exhibit partial epilepsy and myokymia but no ataxic episodes, supporting the suggestion that there is an association between mutations of KCNA1 and epilepsy. Affected members in Family B (KCNA1 C731A) exhibit myokymia alone, suggesting a new phenotype of isolated myokymia. Family C harbors the first truncation to be reported in KCNA1 (C1249T) and exhibits remarkably drug-resistant EA1. Affected members in Family D (KCNA1 G1210A) exhibit attacks typical of EA1. This mutation has recently been reported in an apparently unrelated family, although no functional studies were attempted. Heterologous expression of the proteins encoded by the mutant KCNA1 genes suggest that the four point mutations impair delayed-rectifier type potassium currents by different mechanisms. Increased neuronal excitability is likely to be the common pathophysiological basis for the disease in these families. The degree and nature of the potassium channel dysfunction may be relevant to the new phenotypic observations reported in this study. Ann Neurol 2000;48:647–656},
langid = {english},
file = {C\:\\Users\\marc_\\Zotero\\storage\\G2289P57\\Eunson e.a. - 2000 - Clinical, genetic, and expression studies of mutat.pdf;C\:\\Users\\marc_\\Zotero\\storage\\A6Z4A36Y\\1531-8249(200010)484647AID-ANA123.0.html}
}
@article{ewellStuffMemoriesSharp2018,
title = {The {{Stuff}} of {{Memories}}: {{Sharp Wave Ripple Memory Consolidation}} in {{Epilepsy}}},
shorttitle = {The {{Stuff}} of {{Memories}}},
author = {Ewell, Laura A.},
date = {2018},
journaltitle = {Epilepsy Currents},
shortjournal = {Epilepsy Curr},
volume = {18},
number = {4},
eprint = {30254524},
eprinttype = {pmid},
pages = {253--254},
issn = {1535-7597},
doi = {10.5698/1535-7597.18.4.253},
url = {https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6145387/},
urldate = {2023-11-07},
pmcid = {PMC6145387},
file = {C:\Users\marc_\Zotero\storage\FWWGHJHA\Ewell - 2018 - The Stuff of Memories Sharp Wave Ripple Memory Co.pdf}
}
@article{fengGeneticVariationsGABA2022,
title = {Genetic Variations in {{GABA}} Metabolism and Epilepsy},
author = {Feng, Yan and Wei, Zi-Han and Liu, Chao and Li, Guo-Yan and Qiao, Xiao-Zhi and Gan, Ya-Jing and Zhang, Chu-Chu and Deng, Yan-Chun},
date = {2022-10},
journaltitle = {Seizure: European Journal of Epilepsy},
shortjournal = {Seizure: European Journal of Epilepsy},
volume = {101},
pages = {22--29},
issn = {10591311},
doi = {10.1016/j.seizure.2022.07.007},
url = {https://linkinghub.elsevier.com/retrieve/pii/S1059131122001601},
urldate = {2024-04-01},
abstract = {Epilepsy is a paroxysmal brain disorder that results from an imbalance between neuronal excitation and inhi bition. Gamma-aminobutyric acid (GABA) is the most important inhibitory neurotransmitter in the brain and plays an important role in the occurrence and development of epilepsy. Abnormalities in all aspects of GABA metabolism, including GABA synthesis, transport, genes encoding GABA receptors, and GABA inactivation, may lead to epilepsy. GABRA1, GABRA2, GABRA5, GABRB1, GABRB2, GABRB3, GABRG2 and GABBR2 are genes that encode GABA receptors and are commonly associated with epilepsy. Mutations of these genes lead to a variety of epilepsy syndromes with different clinical phenotypes, primarily by down regulating receptor expression and reducing the amplitude of GABA-evoked potentials. GABA is metabolized by GABA transaminase and succinate semi aldehyde dehydrogenase, which are encoded by the ABAT and ALDH5A1 genes, respectively. Mutations of these genes result in symptoms related to deficiency of GABA transaminase and succinate semi aldehyde de hydrogenase, such as epilepsy and cognitive impairment. Most of the variation in genes associated with GABA metabolism are accompanied by developmental disorders. This review focuses on advances in understanding the relationship between genetic variation in GABA metabolism and epilepsy to establish a basis for the accurate diagnosis and treatment of epilepsy.},
langid = {english},
file = {C:\Users\marc_\Zotero\storage\TKS4UI2A\Feng e.a. - 2022 - Genetic variations in GABA metabolism and epilepsy.pdf}
}
@article{fiestPrevalenceIncidenceEpilepsy2017,
title = {Prevalence and Incidence of Epilepsy},
author = {Fiest, Kirsten M. and Sauro, Khara M. and Wiebe, Samuel and Patten, Scott B. and Kwon, Churl-Su and Dykeman, Jonathan and Pringsheim, Tamara and Lorenzetti, Diane L. and Jetté, Nathalie},
date = {2017-01-17},
journaltitle = {Neurology},
shortjournal = {Neurology},
volume = {88},
number = {3},
eprint = {27986877},
eprinttype = {pmid},
pages = {296--303},
issn = {0028-3878},
doi = {10.1212/WNL.0000000000003509},
url = {https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5272794/},
urldate = {2024-04-24},
abstract = {Objective: To review population-based studies of the prevalence and incidence of epilepsy worldwide and use meta-analytic techniques to explore factors that may explain heterogeneity between estimates. Methods: The Preferred Reporting Items for Systematic Reviews and Meta-Analyses standards were followed. We searched MEDLINE and EMBASE for articles published on the prevalence or incidence of epilepsy since 1985. Abstract, full-text review, and data abstraction were conducted in duplicate. Meta-analyses and meta-regressions were used to explore the association between prevalence or incidence, age group, sex, country level income, and study quality. Results: A total of 222 studies were included (197 on prevalence, 48 on incidence). The point prevalence of active epilepsy was 6.38 per 1,000 persons (95\% confidence interval [95\% CI] 5.57–7.30), while the lifetime prevalence was 7.60 per 1,000 persons (95\% CI 6.17–9.38). The annual cumulative incidence of epilepsy was 67.77 per 100,000 persons (95\% CI 56.69–81.03) while the incidence rate was 61.44 per 100,000 person-years (95\% CI 50.75–74.38). The prevalence of epilepsy did not differ by age group, sex, or study quality. The active annual period prevalence, lifetime prevalence, and incidence rate of epilepsy were higher in low to middle income countries. Epilepsies of unknown etiology and those with generalized seizures had the highest prevalence. Conclusions: This study provides a comprehensive synthesis of the prevalence and incidence of epilepsy from published international studies and offers insight into factors that contribute to heterogeneity between estimates. Significant gaps (e.g., lack of incidence studies, stratification by age groups) were identified. Standardized reporting of future epidemiologic studies of epilepsy is needed.},
pmcid = {PMC5272794},
file = {C:\Users\marc_\Zotero\storage\FBJU4BLL\Fiest e.a. - 2017 - Prevalence and incidence of epilepsy.pdf}
}
@article{fisherILAEOfficialReport2014,
title = {{{ILAE Official Report}}: {{A}} Practical Clinical Definition of Epilepsy},
shorttitle = {{{ILAE Official Report}}},
author = {Fisher, Robert S. and Acevedo, Carlos and Arzimanoglou, Alexis and Bogacz, Alicia and Cross, J. Helen and Elger, Christian E. and Engel Jr, Jerome and Forsgren, Lars and French, Jacqueline A. and Glynn, Mike and Hesdorffer, Dale C. and Lee, B.i. and Mathern, Gary W. and Moshé, Solomon L. and Perucca, Emilio and Scheffer, Ingrid E. and Tomson, Torbjörn and Watanabe, Masako and Wiebe, Samuel},
date = {2014},
journaltitle = {Epilepsia},
volume = {55},
number = {4},
pages = {475--482},
issn = {1528-1167},
doi = {10.1111/epi.12550},
url = {https://onlinelibrary.wiley.com/doi/abs/10.1111/epi.12550},
urldate = {2024-04-01},
abstract = {Epilepsy was defined conceptually in 2005 as a disorder of the brain characterized by an enduring predisposition to generate epileptic seizures. This definition is usually practically applied as having two unprovoked seizures {$>$}24 h apart. The International League Against Epilepsy (ILAE) accepted recommendations of a task force altering the practical definition for special circumstances that do not meet the two unprovoked seizures criteria. The task force proposed that epilepsy be considered to be a disease of the brain defined by any of the following conditions: (1) At least two unprovoked (or reflex) seizures occurring {$>$}24 h apart; (2) one unprovoked (or reflex) seizure and a probability of further seizures similar to the general recurrence risk (at least 60\%) after two unprovoked seizures, occurring over the next 10 years; (3) diagnosis of an epilepsy syndrome. Epilepsy is considered to be resolved for individuals who either had an age-dependent epilepsy syndrome but are now past the applicable age or who have remained seizure-free for the last 10 years and off antiseizure medicines for at least the last 5 years. “Resolved” is not necessarily identical to the conventional view of “remission or “cure.” Different practical definitions may be formed and used for various specific purposes. This revised definition of epilepsy brings the term in concordance with common use. A PowerPoint slide summarizing this article is available for download in the Supporting Information section here.},
langid = {english},
keywords = {Definition,Epilepsy,Recurrence,Seizure,Unprovoked},
file = {C\:\\Users\\marc_\\Zotero\\storage\\2RHWH3NV\\Fisher e.a. - 2014 - ILAE Official Report A practical clinical definit.pdf;C\:\\Users\\marc_\\Zotero\\storage\\A9XBV88P\\epi.html}
}
@article{foitFunctionalNetworksEpilepsy2020,
title = {Functional {{Networks}} in {{Epilepsy Presurgical Evaluation}}},
author = {Foit, Niels Alexander and Bernasconi, Andrea and Bernasconi, Neda},
date = {2020-07},
journaltitle = {Neurosurgery Clinics of North America},
shortjournal = {Neurosurgery Clinics of North America},
volume = {31},
number = {3},
pages = {395--405},
issn = {10423680},
doi = {10.1016/j.nec.2020.03.004},
url = {https://linkinghub.elsevier.com/retrieve/pii/S1042368020300188},
urldate = {2024-04-01},
langid = {english},
file = {C:\Users\marc_\Zotero\storage\CP35AG65\Foit e.a. - 2020 - Functional Networks in Epilepsy Presurgical Evalua.pdf}
}
@article{foldvaryLocalizingValueIctal2001,
title = {The Localizing Value of Ictal {{EEG}} in Focal Epilepsy},
author = {Foldvary, N. and Klem, G. and Hammel, J. and Bingaman, W. and Najm, I. and Lüders, H.},
date = {2001-12-11},
journaltitle = {Neurology},
volume = {57},
number = {11},
pages = {2022--2028},
publisher = {Wolters Kluwer},
doi = {10.1212/WNL.57.11.2022},
url = {https://www.neurology.org/doi/full/10.1212/WNL.57.11.2022},
urldate = {2024-05-03},
abstract = {Objective: To investigate the lateralization and localization of ictal EEG in focal epilepsy. Methods: A total of 486 ictal EEG of 72 patients with focal epilepsy arising from the mesial temporal, neocortical temporal, mesial frontal, dorsolateral frontal, parietal, and occipital regions were analyzed. Results: Surface ictal EEG was adequately localized in 72\% of cases, more often in temporal than extratemporal epilepsy. Localized ictal onsets were seen in 57\% of seizures and were most common in mesial temporal lobe epilepsy (MTLE), lateral frontal lobe epilepsy (LFLE), and parietal lobe epilepsy, whereas lateralized onsets predominated in neocortical temporal lobe epilepsy and generalized onsets in mesial frontal lobe epilepsy (MFLE) and occipital lobe epilepsy. Approximately two-thirds of seizures were localized, 22\% generalized, 4\% lateralized, and 6\% mislocalized/lateralized. False localization/lateralization occurred in 28\% of occipital and 16\% of parietal seizures. Rhythmic temporal theta at ictal onset was seen exclusively in temporal lobe seizures, whereas localized repetitive epileptiform activity was highly predictive of LFLE. Seizures arising from the lateral convexity and mesial regions were differentiated by a high incidence of repetitive epileptiform activity at ictal onset in the former and rhythmic theta activity in the latter. Conclusions: With the exception of mesial frontal lobe epilepsy, ictal recordings are very useful in the localization/lateralization of focal seizures. Some patterns are highly accurate in localizing the epileptogenic lobe. One limitation of ictal EEG is the potential for false localization/lateralization in occipital and parietal lobe epilepsies.}
}
@article{fritschyEpilepsyBalanceGABAA2008,
title = {Epilepsy, {{E}}/{{I}} Balance and {{GABAA}} Receptor Plasticity},
author = {Fritschy, Jean-Marc},
date = {2008-03-28},
journaltitle = {Frontiers in Molecular Neuroscience},
shortjournal = {Front. Mol. Neurosci.},
volume = {1},
publisher = {Frontiers},
issn = {1662-5099},
doi = {10.3389/neuro.02.005.2008},
url = {https://www.frontiersin.org/articles/10.3389/neuro.02.005.2008},
urldate = {2024-05-02},
abstract = {GABAA receptors mediate most of the fast inhibitory transmission in the CNS. They form heteromeric complexes assembled from a large family of subunit genes. The existence of multiple GABAA receptor subtypes differing in subunit composition, localization and functional properties underlies their role for fi ne-tuning of neuronal circuits and genesis of network oscillations. The differential regulation of GABAA receptor subtypes represents a major facet of homeostatic synaptic plasticity and contributes to the excitation/inhibition (E/I) balance under physiological conditions and upon pathological challenges. The purpose of this review is to discuss recent fi ndings highlighting the signifi cance of GABAA receptor heterogeneity for the concept of E/I balance and its relevance for epilepsy. Specifi cally, we address the following issues: (1) role for tonic inhibition, mediated by extrasynaptic GABAA receptors, for controlling neuronal excitability; (2) signifi cance of chloride ion transport for maintenance of the E/I balance in adult brain; and (3) molecular mechanisms underlying GABAA receptor regulation (traffi cking, posttranslational modifi cation, gene transcription) that are important for homoeostatic plasticity. Finally, the relevance of these fi ndings is discussed in light of the involvement of GABAA receptors in epileptic disorders, based on recent experimental studies of temporal lobe epilepsy (TLE) and absence seizures and on the identifi cation of mutations in GABAA receptor subunit genes underlying familial forms of epilepsy.},
langid = {english},
keywords = {absence epilepsy,homeostatic plasticity,synaptic plasticity,Temporal Lobe Epilepsy,tonic inhibition},
file = {C:\Users\marc_\Zotero\storage\QCFQ8RHX\Fritschy - 2008 - Epilepsy, EI balance and GABAA receptor plasticit.pdf}
}
@article{gaoPotassiumChannelsEpilepsy2022,
title = {Potassium Channels and Epilepsy},
author = {Gao, Kai and Lin, Zehong and Wen, Sijia and Jiang, Yuwu},
date = {2022},
journaltitle = {Acta Neurologica Scandinavica},
volume = {146},
number = {6},
pages = {699--707},
issn = {1600-0404},
doi = {10.1111/ane.13695},
url = {https://onlinelibrary.wiley.com/doi/abs/10.1111/ane.13695},
urldate = {2024-04-08},
abstract = {With the development and application of next-generation sequencing technology, the aetiological diagnosis of genetic epilepsy is rapidly becoming easier and less expensive. Additionally, there is a growing body of research into precision therapy based on genetic diagnosis. The numerous genes in the potassium ion channel family constitute the largest family of ion channels: this family is divided into different subtypes. Potassium ion channels play a crucial role in the electrical activity of neurons and are directly involved in the mechanism of epileptic seizures. In China, scientific research on genetic diagnosis and studies of precision therapy for genetic epilepsy are progressing rapidly. Many cases of epilepsy caused by mutation of potassium channel genes have been identified, and several potassium channel gene targets and drug candidates have been discovered. The purpose of this review is to briefly summarize the progress of research on the precise diagnosis and treatment of potassium ion channel-related genetic epilepsy, especially the research conducted in China. Here in, we review several large cohort studies on the genetic diagnosis of epilepsy in China in recent years, summarized the proportion of potassium channel genes. We focus on the progress of precison therapy on some hot epilepsy related potassium channel genes: KCNA1, KCNA2, KCNB1, KCNC1, KCND2, KCNQ2, KCNQ3, KCNMA1, and KCNT1.},
langid = {english},
keywords = {epilepsy,genetic diagnosis,potassium ion channel,precision therapy},
file = {C\:\\Users\\marc_\\Zotero\\storage\\IN6XU8P8\\Gao e.a. - 2022 - Potassium channels and epilepsy.pdf;C\:\\Users\\marc_\\Zotero\\storage\\T55H2APW\\ane.html}
}
@article{gaspariniInitiationPropagationDendritic2004,
title = {On the {{Initiation}} and {{Propagation}} of {{Dendritic Spikes}} in {{CA1 Pyramidal Neurons}}},
author = {Gasparini, Sonia and Migliore, Michele and Magee, Jeffrey C.},
date = {2004-12-08},
journaltitle = {Journal of Neuroscience},
shortjournal = {J. Neurosci.},
volume = {24},
number = {49},
eprint = {15590921},
eprinttype = {pmid},
pages = {11046--11056},
publisher = {Society for Neuroscience},
issn = {0270-6474, 1529-2401},
doi = {10.1523/JNEUROSCI.2520-04.2004},
url = {https://www.jneurosci.org/content/24/49/11046},
urldate = {2023-11-13},
abstract = {Under certain conditions, regenerative voltage spikes can be initiated locally in the dendrites of CA1 pyramidal neurons. These are interesting events that could potentially provide neurons with additional computational abilities. Using whole-cell dendritic recordings from the distal apical trunk and proximal tuft regions and realistic computer modeling, we have determined that highly synchronized and moderately clustered inputs are required for dendritic spike initiation: ∼50 synaptic inputs spread over 100 μm of the apical trunk/tuft need to be activated within 3 msec. Dendritic spikes are characterized by a more depolarized voltage threshold than at the soma [-48 ± 1 mV (n = 30) vs -56 ± 1 mV (n = 7), respectively] and are mainly generated and shaped by dendritic Na+ and K+ currents. The relative contribution of AMPA and NMDA currents is also important in determining the actual spatiotemporal requirements for dendritic spike initiation. Once initiated, dendritic spikes can easily reach the soma, but their propagation is only moderately strong, so that it can be modulated by physiologically relevant factors such as changes in the Vm and the ionic composition of the extracellular solution. With effective spike propagation, an extremely short-latency neuronal output is produced for greatly reduced input levels. Therefore, dendritic spikes function as efficient detectors of specific input patterns, ensuring that the neuronal response to high levels of input synchrony is a precisely timed action potential output.},
langid = {english},
keywords = {AMPA conductance,dendrite,hippocampus,integration,NMDA conductance,spike,synaptic},
file = {C:\Users\marc_\Zotero\storage\LP7M42TC\Gasparini et al. - 2004 - On the Initiation and Propagation of Dendritic Spi.pdf}
}
@article{ghoriUncertaintyQuantificationSensitivity2023,
title = {Uncertainty Quantification and Sensitivity Analysis of a Hippocampal {{CA3}} Pyramidal Neuron Model under Electromagnetic Induction},
author = {Ghori, Muhammad Bilal and Kang, Yanmei},
date = {2023-07-01},
journaltitle = {Nonlinear Dynamics},
shortjournal = {Nonlinear Dyn},
volume = {111},
number = {14},
pages = {13457--13479},
issn = {1573-269X},
doi = {10.1007/s11071-023-08514-7},
url = {https://doi.org/10.1007/s11071-023-08514-7},
urldate = {2024-04-18},
abstract = {Due to the huge storage capacity and complex nonlinearity associated with the memristor or memory resistor, various modified single-compartment neuron models with a flux controlled memristor for exploring the influence of electromagnetic induction on dynamical response, including spiking patterns, have been presented. This paper generalizes the relevant investigation of the electrophysiology of a hippocampal CA3 pyramidal neuron by an electromagnetic induction-based variant of the two-compartment Pinsky–Rinzel neuron model. Our emphasis was on the uncertainty quantification and sensitivity analysis of ionic channel conductivities under the electromagnetic induction effect when the two-compartment model is near the Hopf bifurcation point. It was found that the quantities of interest (QoI), such as average interspike interval and spike frequency, mainly depend on the conductivities of calcium and calcium-activated potassium channels and their mutual interactions within a periodic bursting electrical mode. In the case of the aperiodic bursting electrical mode, these QoIs are most sensitive to the conductivities of potassium delayed rectifier, calcium, calcium-activated potassium channels, and their mutual interactions. Our computational results demonstrate that the electrical activities of the hippocampal CA3 pyramidal neuron model under the influence of magnetic flux are sensitive to the transition between complex periodic and aperiodic bursting electrical modes.},
langid = {english},
keywords = {Electromagnetic induction,Hippocampal pyramidal neurons,Sensitivity analysis,Uncertainty quantification},
file = {C:\Users\marc_\Zotero\storage\JCHM6YCC\Ghori en Kang - 2023 - Uncertainty quantification and sensitivity analysi.pdf}
}
@article{goldbergMechanismsEpileptogenesisConvergence2013,
title = {Mechanisms of Epileptogenesis: A Convergence on Neural Circuit Dysfunction},
shorttitle = {Mechanisms of Epileptogenesis},
author = {Goldberg, Ethan M. and Coulter, Douglas A.},
date = {2013-05},
journaltitle = {Nature Reviews Neuroscience},
shortjournal = {Nat Rev Neurosci},
volume = {14},
number = {5},
pages = {337--349},
publisher = {Nature Publishing Group},
issn = {1471-0048},
doi = {10.1038/nrn3482},
url = {https://www.nature.com/articles/nrn3482},
urldate = {2024-02-22},
abstract = {Epileptogenesis is the process whereby a previously normal brain is functionally altered and biased towards the generation of the abnormal paroxysmal electrical activity that defines chronic seizures.The underlying mechanisms that drive epileptogenesis are controversial. It is unlikely that there is a singular mechanism that applies to all epilepsy syndromes.This concept classically refers to the acquired epilepsies but can be viewed as applicable to at least some genetically determined epilepsies as well.Specific themes have emerged in recent years that may represent points of convergence in the field of epileptogenesis, including abnormal signalling by large-scale molecular cascades such as mammalian target of rapamycin and repressor element 1-silencing transcription factor (REST), the dysfunction of particular neuronal cell types with seeming importance in basic mechanisms of epilepsy and dysfunction of discrete neuronal circuit elements.Seizures are by definition circuit-level phenomena that require the re-entrant activation of embedded loop structures within cortical circuits. The above-mentioned considerations further highlight circuit-level considerations and analysis in our future understanding of epileptogenesis and mechanisms of epilepsy.},
issue = {5},
langid = {english},
keywords = {Neurological disorders},
file = {C:\Users\marc_\Zotero\storage\II5D7F4X\Goldberg and Coulter - 2013 - Mechanisms of epileptogenesis a convergence on ne.pdf}
}
@article{gravesIonChannelsEpilepsy2006,
title = {Ion Channels and Epilepsy},
author = {Graves, T.D.},
date = {2006-04-01},
journaltitle = {QJM: An International Journal of Medicine},
shortjournal = {QJM: An International Journal of Medicine},
volume = {99},
number = {4},
pages = {201--217},
issn = {1460-2725},
doi = {10.1093/qjmed/hcl021},
url = {https://doi.org/10.1093/qjmed/hcl021},
urldate = {2024-04-10},
file = {C\:\\Users\\marc_\\Zotero\\storage\\EPV5EAZ6\\Graves - 2006 - Ion channels and epilepsy.pdf;C\:\\Users\\marc_\\Zotero\\storage\\L2G5UXYQ\\2261046.html}
}
@article{hainmuellerDentateGyrusCircuits2020,
title = {Dentate Gyrus Circuits for Encoding, Retrieval and Discrimination of Episodic Memories},
author = {Hainmueller, Thomas and Bartos, Marlene},
date = {2020-03},
journaltitle = {Nature Reviews Neuroscience},
shortjournal = {Nat Rev Neurosci},
volume = {21},
number = {3},
pages = {153--168},
publisher = {Nature Publishing Group},
issn = {1471-0048},
doi = {10.1038/s41583-019-0260-z},
url = {https://www.nature.com/articles/s41583-019-0260-z},
urldate = {2023-11-07},
abstract = {The dentate gyrus (DG) has a key role in hippocampal memory formation. Intriguingly, DG lesions impair many, but not all, hippocampus-dependent mnemonic functions, indicating that the rest of the hippocampus (CA1–CA3) can operate autonomously under certain conditions. An extensive body of theoretical work has proposed how the architectural elements and various cell types of the DG may underlie its function in cognition. Recent studies recorded and manipulated the activity of different neuron types in the DG during memory tasks and have provided exciting new insights into the mechanisms of DG computational processes, particularly for the encoding, retrieval and discrimination of similar memories. Here, we review these DG-dependent mnemonic functions in light of the new findings and explore mechanistic links between the cellular and network properties of, and the computations performed by, the DG.},
issue = {3},
langid = {english},
keywords = {Hippocampus,Learning and memory,Neural circuits},
file = {C:\Users\marc_\Zotero\storage\DBMH8M3E\Hainmueller and Bartos - 2020 - Dentate gyrus circuits for encoding, retrieval and.pdf}
}
@article{hakamiEfficacyTolerabilityAntiseizure2021,
title = {Efficacy and Tolerability of Antiseizure Drugs},
author = {Hakami, Tahir},
date = {2021-01-01},
journaltitle = {Therapeutic Advances in Neurological Disorders},
shortjournal = {Ther Adv Neurol Disord},
volume = {14},
pages = {17562864211037430},
publisher = {SAGE Publications Ltd STM},
issn = {1756-2864},
doi = {10.1177/17562864211037430},
url = {https://doi.org/10.1177/17562864211037430},
urldate = {2024-04-30},
abstract = {Drug-resistant epilepsy occurs in 25–30\% of patients. Furthermore, treatment with a first-generation antiseizure drug (ASD) fails in 30–40\% of individuals because of their intolerable adverse effects. Over the past three decades, 20 newer- (second- and third-)generation ASDs with unique mechanisms of action and pharmacokinetic profiles have been introduced into clinical practice. This advent has expanded the therapeutic armamentarium of epilepsy and broadens the choices of ASDs to match the individual patient’s characteristics. In recent years, research has been focused on defining the ASD of choice for different seizure types. In 2017, the International League Against Epilepsy published a new classification for seizure types and epilepsy syndrome. This classification has been of paramount importance to accurately classify the patient’s seizure type(s) and prescribe the ASD that is appropriate. A year later, the American Academy of Neurology published a new guideline for ASD selection in adult and pediatric patients with new-onset and treatment-resistant epilepsy. The guideline primarily relied on studies that compare the first-generation and second-generation ASDs, with limited data for the efficacy of third-generation drugs. While researchers have been called for investigating those drugs in future research, epilepsy specialists may wish to share their personal experiences to support the treatment guidelines. Given the rapid advances in the development of ASDs in recent years and the continuous updates in definitions, classifications, and treatment guidelines for seizure types and epilepsy syndromes, this review aims to present a complete overview of the current state of the literature about the efficacy and tolerability of ASDs and provide guidance to clinicians about selecting appropriate ASDs for initial treatment of epilepsy according to different seizure types and epilepsy syndromes based on the current literature and recent US and UK practical guidelines.},
langid = {english},
file = {C:\Users\marc_\Zotero\storage\HL3P3H3Y\Hakami - 2021 - Efficacy and tolerability of antiseizure drugs.pdf}
}
@article{hodgkinMeasurementCurrentvoltageRelations1952,
title = {Measurement of Current-Voltage Relations in the Membrane of the Giant Axon of {{Loligo}}},
author = {Hodgkin, A. L. and Huxley, A. F. and Katz, B.},
date = {1952-04-28},
journaltitle = {The Journal of Physiology},
shortjournal = {J Physiol},
volume = {116},
number = {4},
eprint = {14946712},
eprinttype = {pmid},
pages = {424--448},
issn = {0022-3751},
url = {https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1392219/},
urldate = {2024-04-11},
abstract = {Images null},
pmcid = {PMC1392219},
file = {C:\Users\marc_\Zotero\storage\9JIJXC4F\Hodgkin e.a. - 1952 - Measurement of current-voltage relations in the me.pdf}
}
@article{hwangGeneticsTemporalLobe2012a,
title = {Genetics of Temporal Lobe Epilepsy},
author = {Hwang, Su-Kyeong and Hirose, Shinichi},
date = {2012-09},
journaltitle = {Brain and Development},
shortjournal = {Brain and Development},
volume = {34},
number = {8},
pages = {609--616},
issn = {03877604},
doi = {10.1016/j.braindev.2011.10.008},
url = {https://linkinghub.elsevier.com/retrieve/pii/S0387760411003007},
urldate = {2024-04-30},
abstract = {The most common partial epilepsy, temporal lobe epilepsy (TLE) consists of a heterogeneous group of seizure disorders originating in the temporal lobe. TLE had been thought to develop as a result of acquired structural problems in the temporal lobe. During the past two decades, there has been growing evidence of the important influence of genetic factors, and familial and non-lesional TLE have been increasingly described. Here, we focus on the genetics of TLE and review related genes which have been studied recently. Although its molecular mechanisms are still poorly understood, TLE genetics is a fertile field, awaiting more research.},
langid = {english},
file = {C:\Users\marc_\Zotero\storage\CFU9LVRX\Hwang en Hirose - 2012 - Genetics of temporal lobe epilepsy.pdf}
}
@article{ilyasProIctalStateHuman2023,
title = {Pro-{{Ictal State}} in {{Human Temporal Lobe Epilepsy}}},
author = {Ilyas, Adeel and Alamoudi, Omar A. and Riley, Kristen O. and Pati, Sandipan},
date = {2023-02-28},
journaltitle = {NEJM Evidence},
volume = {2},
number = {3},
pages = {EVIDoa2200187},
publisher = {Massachusetts Medical Society},
doi = {10.1056/EVIDoa2200187},
url = {https://evidence.nejm.org/doi/full/10.1056/EVIDoa2200187},
urldate = {2024-04-11},
file = {C:\Users\marc_\Zotero\storage\P9EE56UQ\Ilyas e.a. - 2023 - Pro-Ictal State in Human Temporal Lobe Epilepsy.pdf}
}
@article{isomotoInwardlyRectifyingPotassium1997,
title = {Inwardly {{Rectifying Potassium Channels}}: {{Their Molecular Heterogeneity}} and {{Function}}},
shorttitle = {Inwardly {{Rectifying Potassium Channels}}},
author = {Isomoto, Shojiro and Kondo, Chikako and Kurachi, Yoshihisa},
date = {1997},
journaltitle = {The Japanese Journal of Physiology},
volume = {47},
number = {1},
pages = {11--39},
doi = {10.2170/jjphysiol.47.11},
keywords = {ATP-sensitive potassium channel,G protein-gated potassium channel,inwardly rectifying potassium channel,molecular cloning},
file = {C\:\\Users\\marc_\\Zotero\\storage\\IU29YXX3\\Isomoto e.a. - 1997 - Inwardly Rectifying Potassium Channels Their Mole.pdf;C\:\\Users\\marc_\\Zotero\\storage\\JP9DCUZU\\ja.html}
}
@article{kailaGABAActionsIonic2014a,
title = {{{GABA}} Actions and Ionic Plasticity in Epilepsy},
author = {Kaila, Kai and Ruusuvuori, Eva and Seja, Patricia and Voipio, Juha and Puskarjov, Martin},
date = {2014-06},
journaltitle = {Current Opinion in Neurobiology},
shortjournal = {Current Opinion in Neurobiology},
volume = {26},
pages = {34--41},
issn = {09594388},
doi = {10.1016/j.conb.2013.11.004},
url = {https://linkinghub.elsevier.com/retrieve/pii/S0959438813002146},
urldate = {2024-05-02},
langid = {english},
file = {C:\Users\marc_\Zotero\storage\D8TLA2WK\Kaila e.a. - 2014 - GABA actions and ionic plasticity in epilepsy.pdf}
}
@article{kalitzinEpilepsyManifestationMultistate2019a,
title = {Epilepsy as a Manifestation of a Multistate Network of Oscillatory Systems},
author = {Kalitzin, Stiliyan and Petkov, George and Suffczynski, Piotr and Grigorovsky, Vasily and Bardakjian, Berj L. and Lopes Da Silva, Fernando and Carlen, Peter L.},
date = {2019-10},
journaltitle = {Neurobiology of Disease},
shortjournal = {Neurobiology of Disease},
volume = {130},
pages = {104488},
issn = {09699961},
doi = {10.1016/j.nbd.2019.104488},
url = {https://linkinghub.elsevier.com/retrieve/pii/S0969996119300415},
urldate = {2024-04-11},
abstract = {The human brain, largely accepted as the most complex biological system known, is still far from being understood in its parts or as a whole. More specifically, biological mechanisms of epileptic states and state transitions are not well understood. Here, we explore the concept of the epilepsy as a manifestation of a multistate network composed of coupled oscillatory units. We also propose that functional coupling between neuroglial elements is a dynamic process, characterized by temporal changes both at short and long time scales. We review various experimental and modelling data suggesting that epilepsy is a pathological manifestation of such a multistate network – both when viewed as a coupled oscillatory network, and as a system of multistate stable state attractors. Based on a coupled oscillators model, we propose a significant role for glial cells in modulating hyperexcitability of the neuroglial networks of the brain. Also, using these concepts, we explain a number of observable phenomena such as propagation patterns of bursts within a seizure in the isolated intact hippocampus in vitro, postictal generalized suppression in human encephalographic seizure data, and changes in seizure susceptibility in epileptic patients. Based on our conceptual model we propose potential clinical applications to estimate brain closeness to ictal transition by means of active perturbations and passive measures during ongoing activity.},
langid = {english},
file = {C:\Users\marc_\Zotero\storage\FU52FM27\Kalitzin e.a. - 2019 - Epilepsy as a manifestation of a multistate networ.pdf}
}
@article{karlocaiPhysiologicalSharpWaveripples2014,
title = {Physiological Sharp Wave-Ripples and Interictal Events in Vitro: What’s the Difference?},
shorttitle = {Physiological Sharp Wave-Ripples and Interictal Events in Vitro},
author = {Karlócai, Mária R. and Kohus, Zsolt and Káli, Szabolcs and Ulbert, István and Szabó, Gábor and Máté, Zoltán and Freund, Tamás F. and Gulyás, Attila I.},
date = {2014-02-01},
journaltitle = {Brain},
shortjournal = {Brain},
volume = {137},
number = {2},
pages = {463--485},
issn = {0006-8950},
doi = {10.1093/brain/awt348},
url = {https://doi.org/10.1093/brain/awt348},
urldate = {2024-04-17},
abstract = {Sharp wave-ripples and interictal events are physiological and pathological forms of transient high activity in the hippocampus with similar features. Sharp wave-ripples have been shown to be essential in memory consolidation, whereas epileptiform (interictal) events are thought to be damaging. It is essential to grasp the difference between physiological sharp wave-ripples and pathological interictal events to understand the failure of control mechanisms in the latter case. We investigated the dynamics of activity generated intrinsically in the Cornu Ammonis region 3 of the mouse hippocampus in vitro, using four different types of intervention to induce epileptiform activity. As a result, sharp wave-ripples spontaneously occurring in Cornu Ammonis region 3 disappeared, and following an asynchronous transitory phase, activity reorganized into a new form of pathological synchrony. During epileptiform events, all neurons increased their firing rate compared to sharp wave-ripples. Different cell types showed complementary firing: parvalbumin-positive basket cells and some axo-axonic cells stopped firing as a result of a depolarization block at the climax of the events in high potassium, 4-aminopyridine and zero magnesium models, but not in the gabazine model. In contrast, pyramidal cells began firing maximally at this stage. To understand the underlying mechanism we measured changes of intrinsic neuronal and transmission parameters in the high potassium model. We found that the cellular excitability increased and excitatory transmission was enhanced, whereas inhibitory transmission was compromised. We observed a strong short-term depression in parvalbumin-positive basket cell to pyramidal cell transmission. Thus, the collapse of pyramidal cell perisomatic inhibition appears to be a crucial factor in the emergence of epileptiform events.},
file = {C\:\\Users\\marc_\\Zotero\\storage\\D93SNWHE\\Karlócai e.a. - 2014 - Physiological sharp wave-ripples and interictal ev.pdf;C\:\\Users\\marc_\\Zotero\\storage\\6DQBCVZ9\\284051.html}
}
@article{khazipovSynchronizationGABAergicInterneuronal1997,
title = {Synchronization of {{GABAergic}} Interneuronal Network in {{CA3}} Subfield of Neonatal Rat Hippocampal Slices.},
author = {Khazipov, R and Leinekugel, X and Khalilov, I and Gaiarsa, J L and Ben-Ari, Y},
date = {1997},
journaltitle = {The Journal of Physiology},
volume = {498},
number = {3},
pages = {763--772},
issn = {1469-7793},
doi = {10.1113/jphysiol.1997.sp021900},
url = {https://onlinelibrary.wiley.com/doi/abs/10.1113/jphysiol.1997.sp021900},
urldate = {2024-04-17},
abstract = {1. Cell-attached and whole-cell recordings from interneurons localized in the stratum radiatum of the CA3 subfield (SR-CA3) of neonatal (postnatal days 2-5) rat hippocampal slices were performed to study their activity during the generation of GABAergic giant depolarizing potentials (GDPs) in CA3 pyramidal cells. 2. Dual recordings revealed that during the generation of GDPs in CA3 pyramidal cells, the interneurons fire bursts of spikes, on average 4.5 +/- 1.4 spikes per burst (cell-attached mode). There bursts were induced by periodical large inward currents (interneuronal GDPs) recorded in whole-cell mode. 3. Interneuronal GDPs revealed typical features of polysynaptic neuronal network-driven events: they were blocked by TTX and by high divalent cation medium and they could be evoked in an all-or-none manner by electrical stimulation in different regions of the hippocampus. The network elements required for the generation of GDPs are present in local CA3 circuits since spontaneous GDPs were present in the isolated CA3 subfield of the hippocampal slice. 4. Interneuronal GDPs were mediated by GABAA and glutamate receptors, since: (i) their reversal potential strongly depended on [Cl-]i; (ii) at the reversal potential of GABAA postsynaptic currents an inward component of GDPs was composed of events with the same kinetics as alpha-amino-3-hydroxy-5-methylisoxazole-4-propionate (AMPA) receptor-mediated EPSCs; and (iii) once GABAA receptors were blocked intracellularly by dialysis with F(-)-MgATP-free solution, the remaining component of interneuronal GDPs reversed near 0 mV and rectified at membrane potentials more negative than -20 mV, suggesting an important contribution of NMDA receptors in addition to AMPA receptors. 5. In cell-attached recordings from interneurons, electrical stimulation in the stratum radiatum evoked a burst of spikes that corresponded to evoked GDPs. Pharmacological study of this response revealed that excitation of SR-CA3 interneurons during GDPs is determined by the co-operative depolarizing actions mediated by GABAA and glutamate (AMPA and NMDA) receptors. Interestingly, after blockade of AMPA receptors, GABAA receptor-mediated depolarization enabled the activation of NMDA receptors presumably via attenuation of their voltage-dependent magnesium block. 6. It is concluded that synchronous activation of SR-CA3 interneurons during generation of GDPs is mediated synaptically and is determined by the co-operation of (i) excitatory GABAergic connections between interneurons and (ii) glutamatergic connections to interneurons originating presumably from the pyramidal cells.},
langid = {english},
file = {C\:\\Users\\marc_\\Zotero\\storage\\5CRSIASW\\Khazipov e.a. - 1997 - Synchronization of GABAergic interneuronal network.pdf;C\:\\Users\\marc_\\Zotero\\storage\\NP6YDS5L\\jphysiol.1997.html}
}
@article{kitchiginaAlterationsCoherentTheta2018,
title = {Alterations of {{Coherent Theta}} and {{Gamma Network Oscillations}} as an {{Early Biomarker}} of {{Temporal Lobe Epilepsy}} and {{Alzheimer}}’s {{Disease}}},
author = {Kitchigina, Valentina F.},
date = {2018-08-27},
journaltitle = {Frontiers in Integrative Neuroscience},
shortjournal = {Front Integr Neurosci},
volume = {12},
eprint = {30210311},
eprinttype = {pmid},
pages = {36},
issn = {1662-5145},
doi = {10.3389/fnint.2018.00036},
url = {https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6119809/},
urldate = {2024-01-16},
abstract = {Alzheimer’s disease (AD) and temporal lobe epilepsy (TLE) are the most common forms of neurodegenerative disorders characterized by the loss of cells and progressive irreversible alteration of cognitive functions, such as attention and memory. AD may be an important cause of epilepsy in the elderly. Early diagnosis of diseases is very important for their successful treatment. Many efforts have been done for defining new biomarkers of these diseases. Significant advances have been made in the searching of some AD and TLE reliable biomarkers, including cerebrospinal fluid and plasma measurements and glucose positron emission tomography. However, there is a great need for the biomarkers that would reflect changes of brain activity within few milliseconds to obtain information about cognitive disturbances. Successful early detection of AD and TLE requires specific biomarkers capable of distinguishing individuals with the progressing disease from ones with other pathologies that affect cognition. In this article, we review recent evidence suggesting that magnetoencephalographic recordings and coherent analysis coupled with behavioral evaluation can be a promising approach to an early detection of AD and TLE., Highlights –Data reviewed include the results of clinical and experimental studies.–Theta and gamma rhythms are disturbed in epilepsy and AD.–Common and different behavioral and oscillatory features of pathologies are compared.–Coherent analysis can be useful for an early diagnostics of diseases.},
pmcid = {PMC6119809},
file = {C:\Users\marc_\Zotero\storage\PWCZUJPS\Kitchigina - 2018 - Alterations of Coherent Theta and Gamma Network Os.pdf}
}
@article{koyamaDentateCircuitryModel2016,
title = {Dentate {{Circuitry}} as a {{Model}} to {{Study Epileptogenesis}}},
author = {Koyama, Ryuta},
date = {2016},
journaltitle = {Biological \& Pharmaceutical Bulletin},
shortjournal = {Biological \& Pharmaceutical Bulletin},
volume = {39},
number = {6},
pages = {891--896},
issn = {0918-6158, 1347-5215},
doi = {10.1248/bpb.b16-00125},
url = {https://www.jstage.jst.go.jp/article/bpb/39/6/39_b16-00125/_article},
urldate = {2023-11-07},
langid = {english},
file = {C:\Users\marc_\Zotero\storage\ZARJIHLP\Koyama - 2016 - Dentate Circuitry as a Model to Study Epileptogene.pdf}
}
@article{leaoOLMInterneuronsDifferentially2012,
title = {{{OLM}} Interneurons Differentially Modulate {{CA3}} and Entorhinal Inputs to Hippocampal {{CA1}} Neurons},
author = {Leão, Richardson N. and Mikulovic, Sanja and Leão, Katarina E. and Munguba, Hermany and Gezelius, Henrik and Enjin, Anders and Patra, Kalicharan and Eriksson, Anders and Loew, Leslie M. and Tort, Adriano B. L. and Kullander, Klas},
date = {2012-11},
journaltitle = {Nature Neuroscience},
shortjournal = {Nat Neurosci},
volume = {15},
number = {11},
pages = {1524--1530},
publisher = {Nature Publishing Group},
issn = {1546-1726},
doi = {10.1038/nn.3235},
url = {https://www.nature.com/articles/nn.3235},
urldate = {2024-04-17},
abstract = {The authors selectively target a population of hippocampal interneurons called oriens lacunosum-moleculare (OLM) cells with the Chrna2 promoter to demonstrate that these cells differentially modulate CA3 and entorhinal inputs to CA1 pyramidal cells. They also find that OLM cells receive fast cholinergic inputs, providing a plausible explanation for how nicotine affects hippocampal plasticity.},
langid = {english},
keywords = {Cellular neuroscience,Hippocampus,Neurotransmitters},
file = {C:\Users\marc_\Zotero\storage\GUYDZK3B\Leão e.a. - 2012 - OLM interneurons differentially modulate CA3 and e.pdf}
}
@article{leitePlasticitySynapticStrength2005,
title = {Plasticity, {{Synaptic Strength}}, and {{Epilepsy}}: {{What Can We Learn}} from {{Ultrastructural Data}}?},
shorttitle = {Plasticity, {{Synaptic Strength}}, and {{Epilepsy}}},
author = {Leite, João Pereira and Neder, Luciano and Arisi, Gabriel Maisonnave and Carlotti Jr., Carlos Gilberto and Assirati, João Alberto and Moreira, Jorge Eduardo},
date = {2005},
journaltitle = {Epilepsia},
volume = {46},
number = {s5},
pages = {134--141},
issn = {1528-1167},
doi = {10.1111/j.1528-1167.2005.01021.x},
url = {https://onlinelibrary.wiley.com/doi/abs/10.1111/j.1528-1167.2005.01021.x},
urldate = {2024-04-19},
abstract = {Summary: Central nervous system synapses have an intrinsic plastic capacity to adapt to new conditions with rapid changes in their structure. Such activity-dependent refinement occurs during development and learning, and shares features with diseases such as epilepsy. Quantitative ultrastructural studies based on serial sectioning and reconstructions have shown various structural changes associated with synaptic strength involving both dendritic spines and postsynaptic densities (PSDs) during long-term potentiation (LTP). In this review, we focus on experimental studies that have analyzed at the ultrastructural level the consequences of LTP in rodents, and plastic changes in the hippocampus of experimental models of epilepsy and human tissue obtained during surgeries for intractable temporal lobe epilepsy (TLE). Modifications in spine morphology, increases in the proportion of synapses with perforated PSDs, and formation of multiple spine boutons arising from the same dendrite are the possible sequence of events that accompany hippocampal LTP. Structural remodeling of mossy fiber synapses and formation of aberrant synaptic contacts in the dentate gyrus are common features in experimental models of epilepsy and in human TLE. Combined electrophysiological and ultrastructural studies in kindled rats and chronic epileptic animals have indicated the occurrence of seizure- and neuron loss-induced changes in the hippocampal network. In these experiments, the synaptic contacts on granule cells are similar to those described for LTP. Such changes could be associated with enhancement of synaptic efficiency and may be important in epileptogenesis.},
langid = {english},
keywords = {Dendritic spines,Experimental models of epilepsy,LTP,Perforated synapses,Postsynaptic density,Temporal lobe epilepsy},
file = {C\:\\Users\\marc_\\Zotero\\storage\\YCJD4AI8\\Leite e.a. - 2005 - Plasticity, Synaptic Strength, and Epilepsy What .pdf;C\:\\Users\\marc_\\Zotero\\storage\\3QAPQPAA\\j.1528-1167.2005.01021.html}
}
@article{lemaireModelingNaV1SCN1A2021,
title = {Modeling {{NaV1}}.1/{{SCN1A}} Sodium Channel Mutations in a Microcircuit with Realistic Ion Concentration Dynamics Suggests Differential {{GABAergic}} Mechanisms Leading to Hyperexcitability in Epilepsy and Hemiplegic Migraine},
author = {Lemaire, Louisiane and Desroches, Mathieu and Krupa, Martin and Pizzamiglio, Lara and Scalmani, Paolo and Mantegazza, Massimo},
date = {2021-07-27},
journaltitle = {PLOS Computational Biology},
shortjournal = {PLOS Computational Biology},
volume = {17},
number = {7},
pages = {e1009239},
publisher = {Public Library of Science},
issn = {1553-7358},
doi = {10.1371/journal.pcbi.1009239},
url = {https://journals.plos.org/ploscompbiol/article?id=10.1371/journal.pcbi.1009239},
urldate = {2024-04-08},
abstract = {Loss of function mutations of SCN1A, the gene coding for the voltage-gated sodium channel NaV1.1, cause different types of epilepsy, whereas gain of function mutations cause sporadic and familial hemiplegic migraine type 3 (FHM-3). However, it is not clear yet how these opposite effects can induce paroxysmal pathological activities involving neuronal networks’ hyperexcitability that are specific of epilepsy (seizures) or migraine (cortical spreading depolarization, CSD). To better understand differential mechanisms leading to the initiation of these pathological activities, we used a two-neuron conductance-based model of interconnected GABAergic and pyramidal glutamatergic neurons, in which we incorporated ionic concentration dynamics in both neurons. We modeled FHM-3 mutations by increasing the persistent sodium current in the interneuron and epileptogenic mutations by decreasing the sodium conductance in the interneuron. Therefore, we studied both FHM-3 and epileptogenic mutations within the same framework, modifying only two parameters. In our model, the key effect of gain of function FHM-3 mutations is ion fluxes modification at each action potential (in particular the larger activation of voltage-gated potassium channels induced by the NaV1.1 gain of function), and the resulting CSD-triggering extracellular potassium accumulation, which is not caused only by modifications of firing frequency. Loss of function epileptogenic mutations, on the other hand, increase GABAergic neurons’ susceptibility to depolarization block, without major modifications of firing frequency before it. Our modeling results connect qualitatively to experimental data: potassium accumulation in the case of FHM-3 mutations and facilitated depolarization block of the GABAergic neuron in the case of epileptogenic mutations. Both these effects can lead to pyramidal neuron hyperexcitability, inducing in the migraine condition depolarization block of both the GABAergic and the pyramidal neuron. Overall, our findings suggest different mechanisms of network hyperexcitability for migraine and epileptogenic NaV1.1 mutations, implying that the modifications of firing frequency may not be the only relevant pathological mechanism.},
langid = {english},
keywords = {Action potentials,Depolarization,Epilepsy,Intracellular membranes,Membrane potential,Migraine,Mouse models,Neurons},
file = {C:\Users\marc_\Zotero\storage\YKQEJDSL\Lemaire e.a. - 2021 - Modeling NaV1.1SCN1A sodium channel mutations in .pdf}
}
@article{lercheIonChannelsGenetic2013,
title = {Ion Channels in Genetic and Acquired Forms of Epilepsy},
author = {Lerche, Holger and Shah, Mala and Beck, Heinz and Noebels, Jeff and Johnston, Dan and Vincent, Angela},
date = {2013},
journaltitle = {The Journal of Physiology},
volume = {591},
number = {4},
pages = {753--764},
issn = {1469-7793},
doi = {10.1113/jphysiol.2012.240606},
url = {https://onlinelibrary.wiley.com/doi/abs/10.1113/jphysiol.2012.240606},
urldate = {2024-04-10},
abstract = {Genetic mutations causing dysfunction of both voltage- and ligand-gated ion channels make a major contribution to the cause of many different types of familial epilepsy. Key mechanisms comprise defective Na+ channels of inhibitory neurons, or GABAA receptors affecting pre- or postsynaptic GABAergic inhibition, or a dysfunction of different types of channels at axon initial segments. Many of these ion channel mutations have been modelled in mice, which has largely contributed to the understanding of where and how the ion channel defects lead to neuronal hyperexcitability. Animal models of febrile seizures or mesial temporal epilepsy have shown that dendritic K+ channels, hyperpolarization-activated cation channels and T-type Ca2+ channels play important roles in the generation of seizures. For the latter, it has been shown that suppression of their function by pharmacological mechanisms or in knock-out mice can antagonize epileptogenesis. Defects of ion channel function are also associated with forms of acquired epilepsy. Autoantibodies directed against ion channels or associated proteins, such as K+ channels, LGI1 or NMDA receptors, have been identified in epileptic disorders that can largely be included under the term limbic encephalitis which includes limbic seizures, status epilepticus and psychiatric symptoms. We conclude that ion channels and associated proteins are important players in different types of genetic and acquired epilepsies. Nevertheless, the molecular bases for most common forms of epilepsy are not yet clear, and evidence to be discussed indicates just how much more we need to understand about the complex mechanisms that underlie epileptogenesis.},
langid = {english},
file = {C\:\\Users\\marc_\\Zotero\\storage\\JVFCKCUU\\Lerche e.a. - 2013 - Ion channels in genetic and acquired forms of epil.pdf;C\:\\Users\\marc_\\Zotero\\storage\\5LIZ2KT7\\jphysiol.2012.html}
}
@article{leungPhasicModulationHippocampal2020a,
title = {Phasic Modulation of Hippocampal Synaptic Plasticity by Theta Rhythm.},
author = {Leung, L. Stan and Law, Clayton S. H.},
date = {2020-12},
journaltitle = {Behavioral Neuroscience},
shortjournal = {Behavioral Neuroscience},
volume = {134},
number = {6},
pages = {595--612},
issn = {1939-0084, 0735-7044},
doi = {10.1037/bne0000354},
url = {https://doi.apa.org/doi/10.1037/bne0000354},
urldate = {2024-04-18},
abstract = {Theta rhythm and long-term potentiation (LTP) are 2 remarkable discoveries. The theta rhythm is an oscillatory neural activity of 3–10 Hz in the hippocampus. LTP is implicated as a cellular basis of memory, but the function of theta oscillation in memory is not clear. This review suggests that theta rhythm bestows optimal conditions for hippocampal LTP and memory encoding. Theta rhythm in hippocampal CA1 is generated mainly by 2 oscillating dipoles—somatic-inhibition and phase-shifted, distal dendritic excitation, with a smaller contribution by rhythmic proximal (CA3) excitation and distal inhibition. Our recent study showed that LTP of the excitatory synapses on the basal or apical dendrites of CA1 pyramidal cells peaked twice in a theta cycle, at the rising (R) and the midcycle (M) phase of the theta rhythm recorded at the distal apical dendrites. In contrast, evoked population spike excitability peaked at a single phase near the midcycle. We infer that R and M peaks of LTP correspond to maximal dendritic depolarization and maximal somatic depolarization of CA1 pyramidal cells, respectively. A ϳ50° phase shift between LTP-versus-theta-phase functions suggests independent LTP at the basal and apical dendrites. It is argued that theta phase– dependent LTP occurs under physiological conditions, by pairing presynaptic activity with oscillating postsynaptic depolarization. Place cells, showing intrinsic membrane potential oscillations, are ideal LTP participants. It is suggested that theta phase– dependent LTP contributes to memory encoding, and disruption of either theta oscillation or LTP may disrupt memory in various neurological disorders, including epilepsy and Alzheimer’s disease.},
langid = {english},
file = {C:\Users\marc_\Zotero\storage\556YWZ7F\Leung en Law - 2020 - Phasic modulation of hippocampal synaptic plastici.pdf}
}
@article{liFeatureExtractionRecognition2013,
title = {Feature Extraction and Recognition of Ictal {{EEG}} Using {{EMD}} and {{SVM}}},
author = {Li, Shufang and Zhou, Weidong and Yuan, Qi and Geng, Shujuan and Cai, Dongmei},
date = {2013-08},
journaltitle = {Computers in Biology and Medicine},
shortjournal = {Computers in Biology and Medicine},
volume = {43},
number = {7},
pages = {807--816},
issn = {00104825},
doi = {10.1016/j.compbiomed.2013.04.002},
url = {https://linkinghub.elsevier.com/retrieve/pii/S0010482513000905},
urldate = {2024-05-03},
abstract = {Automatic seizure detection is significant for long-term monitoring of epilepsy, as well as for diagnostics and rehabilitation, and can decrease the duration of work required when inspecting the EEG signals. In this study we propose a novel method for feature extraction and pattern recognition of ictal EEG, based upon empirical mode decomposition (EMD) and support vector machine (SVM). First the EEG signal is decomposed into Intrinsic Mode Functions (IMFs) using EMD, and then the coefficient of variation and fluctuation index of IMFs are extracted as features. SVM is then used as the classifier for recognition of ictal EEG. The experimental results show that this algorithm can achieve the sensitivity of 97.00\% and specificity of 96.25\% for interictal and ictal EEGs, and the sensitivity of 98.00\% and specificity of 99.40\% for normal and ictal EEGs on Bonn data sets. Besides, the experiment with interictal and ictal EEGs from Qilu Hospital dataset also yields a satisfactory sensitivity of 98.05\% and specificity of 100\%.},
langid = {english},
file = {C:\Users\marc_\Zotero\storage\FNU8RQ94\Li e.a. - 2013 - Feature extraction and recognition of ictal EEG us.pdf}
}
@article{liStudyBrainNetwork2023,
title = {Study of Brain Network Alternations in Non-Lesional Epilepsy Patients by {{BOLD-fMRI}}},
author = {Li, Zhisen and Hou, Xiaoxia and Lu, Yanli and Zhao, Huimin and Wang, Meixia and Xu, Bo and Shi, Qianru and Gui, Qian and Wu, Guanhui and Shen, Mingqiang and Zhu, Wei and Xu, Qinrong and Dong, Xiaofeng and Cheng, Qingzhang and Zhang, Jibin and Feng, Hongxuan},
date = {2023-01-18},
journaltitle = {Frontiers in Neuroscience},
shortjournal = {Front. Neurosci.},
volume = {16},
publisher = {Frontiers},
issn = {1662-453X},
doi = {10.3389/fnins.2022.1031163},
url = {https://www.frontiersin.org/journals/neuroscience/articles/10.3389/fnins.2022.1031163/full},
urldate = {2024-04-01},
abstract = {{$<$}sec{$><$}title{$>$}Objective{$<$}/title{$><$}p{$>$}To investigate the changes of brain network in epilepsy patients without intracranial lesions under resting conditions.{$<$}/p{$><$}/sec{$><$}sec{$><$}title{$>$}Methods{$<$}/title{$><$}p{$>$}Twenty-six non-lesional epileptic patients and 42 normal controls were enrolled for BOLD-fMRI examination. The differences in brain network topological characteristics and functional network connectivity between the epilepsy group and the healthy controls were compared using graph theory analysis and independent component analysis.{$<$}/p{$><$}/sec{$><$}sec{$><$}title{$>$}Results{$<$}/title{$><$}p{$>$}The area under the curve for local efficiency was significantly lower in the epilepsy patients compared with healthy controls, while there were no differences in global indicators. Patients with epilepsy had higher functional connectivity in 4 connected components than healthy controls (orbital superior frontal gyrus and medial superior frontal gyrus, medial superior frontal gyrus and angular gyrus, superior parietal gyrus and paracentral lobule, lingual gyrus, and thalamus). In addition, functional connectivity was enhanced in the default mode network, frontoparietal network, dorsal attention network, sensorimotor network, and auditory network in the epilepsy group.{$<$}/p{$><$}/sec{$><$}sec{$><$}title{$>$}Conclusion{$<$}/title{$><$}p{$>$}The topological characteristics and functional connectivity of brain networks are changed in in non-lesional epilepsy patients. Abnormal functional connectivity may suggest reduced brain efficiency in epilepsy patients and also may be a compensatory response to brain function early at earlier stages of the disease.{$<$}/p{$><$}/sec{$>$}},
langid = {english},
keywords = {BOLD-fMRI,brain network,Epilepsy,graph theory analysis,Independent Component Analysis},
file = {C:\Users\marc_\Zotero\storage\VPK4YCWC\Li e.a. - 2023 - Study of brain network alternations in non-lesiona.pdf}
}
@article{liuEpileptogenicZoneLocation2021,
title = {Epileptogenic {{Zone Location}} of {{Temporal Lobe Epilepsy}} by {{Cross-Frequency Coupling Analysis}}},
author = {Liu, Xiaotong and Han, Fang and Fu, Rui and Wang, Qingyun and Luan, Guoming},
date = {2021-11-16},
journaltitle = {Frontiers in Neurology},
shortjournal = {Front. Neurol.},
volume = {12},
publisher = {Frontiers},
issn = {1664-2295},
doi = {10.3389/fneur.2021.764821},
url = {https://www.frontiersin.org/journals/neurology/articles/10.3389/fneur.2021.764821/full},
urldate = {2024-05-03},
abstract = {{$<$}p{$>$}Epilepsy is a chronic brain disease with dysfunctional brain networks, and electroencephalography (EEG) is an important tool for epileptogenic zone (EZ) identification, with rich information about frequencies. Different frequency oscillations have different contributions to brain function, and cross-frequency coupling (CFC) has been found to exist within brain regions. Cross-channel and inter-channel analysis should be both focused because they help to analyze how epilepsy networks change and also localize the EZ. In this paper, we analyzed long-term stereo-electroencephalography (SEEG) data from 17 patients with temporal lobe epilepsy. Single-channel and cross-channel CFC features were combined to establish functional brain networks, and the network characteristics under different periods and the localization of EZ were analyzed. It was observed that theta–gamma phase amplitude coupling (PAC) within the electrodes in the seizure region increased during the ictal ({$<$}italic{$>$}p{$<$}/italic{$>$} \< 0.05). Theta–gamma and delta–gamma PAC of cross-channel were enhanced in the early and mid-late ictal, respectively. It was also found that there was a strong cross-frequency coupling state between channels of EZ in the functional network during the ictal, along with a more regular network than interictal. The accuracy rate of EZ localization was 82.4\%. Overall, the combination of single-channel and multi-channel cross-band coupling analysis can help identify seizures and localize EZ for temporal lobe epilepsy. Rhythmic coupling reveals a relationship between the functional network and the seizure status of epilepsy.{$<$}/p{$>$}},
langid = {english},
keywords = {Cross-frequency coupling,epileptogenic zone,functional network,SEEG,Temporal Lobe Epilepsy},
file = {C:\Users\marc_\Zotero\storage\L5HIZY2N\Liu e.a. - 2021 - Epileptogenic Zone Location of Temporal Lobe Epile.pdf}
}
@article{liuRescuingKv10Protein2020,
title = {Rescuing {{Kv10}}.2 Protein Changes Cognitive and Emotional Function in Kainic Acid-Induced Status Epilepticus Rats},
author = {Liu, Yamei and Duan, Yanhong and Du, Dongshu and Chen, Fuxue},
date = {2020-05-01},
journaltitle = {Epilepsy \& Behavior},
shortjournal = {Epilepsy \& Behavior},
volume = {106},
pages = {106894},
issn = {1525-5050},
doi = {10.1016/j.yebeh.2019.106894},
url = {https://www.sciencedirect.com/science/article/pii/S1525505019312107},
urldate = {2024-04-30},
abstract = {Voltage-gated potassium (Kv) channels are widely expressed in the central and peripheral nervous system and are crucial mediators of neuronal excitability. Importantly, these channels also actively participate in cellular and molecular signaling pathways that regulate the life and death processes of neurons. The current study used a kainic acid (KA)-induced temporal lobe epilepsy model to examine the role of the Kv10.2 gene in status epilepticus (SE). Lentiviral plasmids containing the coding sequence region of the KCNH5 gene (LV-KCNH5) were injected into the CA3 subarea of the right dorsal hippocampus within 24\,h in post-SE rats to rescue Kv10.2 protein expression. Open-field and elevated plus maze test results indicated that anxiety-like behavior was ameliorated in the KA\,+\,LV-KCNH5 group rats compared with the SE group rats, and working memory was improved in the Y-maze test. However, the spatial reference memory of the LV-KCNH5 group rats did not improve in the Morris water maze test, and no difference was found in the light–dark transition box test. The results of this study indicate that Kv10.2 protein may play an important role in epilepsy, providing new potential therapeutic directions and drug targets for epilepsy treatment.},
keywords = {Behavioral experiment,Epilepsy,Hippocampus,Kv10.2},
file = {C:\Users\marc_\Zotero\storage\MN6QRIZ2\S1525505019312107.html}