Evidence map›Paper›PMID 30179277›Full record

ArticleAnnals of neurology2018

Low-voltage fast seizures in humans begin with increased interneuron firing.

Bahareh Elahian, Nathan E Lado, Emily Mankin, Sitaram Vangala, Amrit Misra, Karen Moxon, Itzhak Fried, Ashwini Sharan, Mohammed Yeasin, Richard Staba and 5 more

Open access · greenAbstract read
In one paragraph

Article in Annals of neurology, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 54 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
54citing papers in PubMed, 1 pooled it
5.5field-weighted citation impact, top 3% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

54 citing papers in PubMed, 1 synthesis or guideline pooled it, 125 citations in OpenAlex.

  1. GABAFrontiers in neural circuits · 2022
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  13. Downmodulation of Potassium Conductances Induces Epileptic Seizures in Cortical Network Models Via Multiple Synergistic Factors.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2025
    Article
  14. Article
  15. Review
  16. Synaptic Vesicle Glycoprotein 2A Knockout in Parvalbumin and Somatostatin Interneurons Drives Seizures in the Postnatal Mouse Brain.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2025
    Article
  17. Article
  18. Modulation ofCurrent neuropharmacology · 2025
    Article
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

15 authors at 7 institutions in 2 countries.

Bahareh ElahianDepartment of Neuroscience, Thomas Jefferson University, Philadelphia, PA.
Nathan E LadoDepartment of Neuroscience, Thomas Jefferson University, Philadelphia, PA.
Emily MankinDepartment of Neurosurgery, David Geffen School of Medicine at UCLA, Los Angeles, CA.
Sitaram VangalaDepartment of Medicine, Statistics Core, David Geffen School of Medicine at UCLA, Los Angeles, CA.
Amrit MisraDepartment of Neurology, Massachusetts General Hospital, Boston, MA.
Karen MoxonDepartment of Biomedical Engineering, Science, and Health Systems, Drexel University, Philadelphia, PA.
Itzhak FriedDepartment of Neurosurgery, David Geffen School of Medicine at UCLA, Los Angeles, CA.
Ashwini SharanDepartment of Neurosurgery, Thomas Jefferson University, Philadelphia, PA.
Mohammed YeasinDepartment of Electrical and Computer Engineering, University of Memphis, Memphis, TN.
Richard StabaDepartment of Neurology, David Geffen School of Medicine at UCLA, Los Angeles, CA.
Anatol BraginDepartment of Neurology, David Geffen School of Medicine at UCLA, Los Angeles, CA.
Massimo AvoliDepartment of Neurology and Neurosurgery, McGill University, Montreal, Quebec, Canada.
Michael R SperlingDepartment of Neurology, Thomas Jefferson University, Philadelphia, PA.
Jerome EngelDepartment of Neurobiology, David Geffen School of Medicine at UCLA, Los Angeles, CA.
Shennan A WeissDepartment of Neuroscience, Thomas Jefferson University, Philadelphia, PA.
Thomas Jefferson University · USUniversity of California, Los Angeles · USCore Laboratories (United States) · USDrexel University · USMassachusetts General Hospital · USMcGill University · CAUniversity of Memphis · US

Funding

The Epilepsy Bioinformatics Study for Antiepileptogenic Therapy (EpiBioS4Rx) Public Engagement CoreU54NS100064 · NINDS · UNIVERSITY OF SOUTHERN CALIFORNIA · PI ENGEL, JEROME NONE, GALANOPOULOU, ARISTEA S · 2017 to 2021
$21.7M
IN VIVO STUDIES OF THE EPILEPTIC HIPPOCAMPUSR01NS033310 · NINDS · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI JEROME NONE ENGEL, Richard Staba · 1994 to 2026
$7.5M
Mechanisms of Memory Enhancement by Deep Brain Stimulation in HumansR01NS084017 · NINDS · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI FRIED, ITZHAK · 2013 to 2022
$4.7M
NEURONAL CORRELATES OF MEMORY IN THE HUMAN TEMPORAL LOBER01NS033221 · NINDS · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI FRIED, ITZHAK · 1996 to 2011
$2.9M
Neuronal Correlates of Memory in the Human Temporal LobeR56NS033221 · NINDS · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI FRIED, ITZHAK · 2012 to 2012
$385k
Reducing or obviating the need for chronic intracranial electroencephalogram telemetry for epilepsy surgery patients by utilizing inter-ictal HFO rates: A study of diagnostic accuracyK23NS094633 · NINDS · THOMAS JEFFERSON UNIVERSITY · PI WEISS, SHENNAN A · 2017 to 2018
$335k
NIH HHS 5K23NS094633-02NIH HHS 5R01NS084017-05NIH HHS NS033221NINDS NIH HHS K23 NS094633NINDS NIH HHS R01 NS033221NINDS NIH HHS R01 NS033310NINDS NIH HHS R01 NS084017NINDS NIH HHS R56 NS033221NINDS NIH HHS U54 NS100064
6 · The paper itself

Abstract

objectiveIntracellular recordings from cells in entorhinal cortex tissue slices show that low-voltage fast (LVF) onset seizures are generated by inhibitory events. Here, we determined whether increased firing of interneurons occurs at the onset of spontaneous mesial-temporal LVF seizures recorded in patients.

methodsThe seizure onset zone (SOZ) was identified using visual inspection of the intracranial electroencephalogram. We used wavelet clustering and temporal autocorrelations to characterize changes in single-unit activity during the onset of LVF seizures recorded from microelectrodes in mesial-temporal structures. Action potentials generated by principal neurons and interneurons (ie, putative excitatory and inhibitory neurons) were distinguished using waveform morphology and K-means clustering.

resultsFrom a total of 200 implanted microelectrodes in 9 patients during 13 seizures, we isolated 202 single units; 140 (69.3%) of these units were located in the SOZ, and 40 (28.57%) of them were classified as inhibitory. The waveforms of both excitatory and inhibitory units remained stable during the LVF epoch (p > > 0.05). In the mesial-temporal SOZ, inhibitory interneurons increased their firing rate during LVF seizure onset (p < 0.01). Excitatory neuron firing rates peaked 10 seconds after the inhibitory neurons (p < 0.01). During LVF spread to the contralateral mesial temporal lobe, an increase in inhibitory neuron firing rate was also observed (p < 0.01).

interpretationOur results suggest that seizure generation and spread during spontaneous mesial-temporal LVF onset events in humans may result from increased inhibitory neuron firing that spawns a subsequent increase in excitatory neuron firing and seizure evolution. Ann Neurol 2018;84:588-600.

Indexed as

Action PotentialsAdultElectrodes, ImplantedElectroencephalographyFemaleGyrus CinguliHumansInterneuronsMaleMiddle AgedRetrospective StudiesSeizuresTemporal LobeYoung Adult

Identifiers

PMID30179277
PMCPMC6814155
OpenAlexW2891111388

What OpenQuestion holds

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.