Evidence map›Paper›PMID 27075542›Full record

ReviewJournal of neurophysiology2016

Specific imbalance of excitatory/inhibitory signaling establishes seizure onset pattern in temporal lobe epilepsy.

Massimo Avoli, Marco de Curtis, Vadym Gnatkovsky, Jean Gotman, Rüdiger Köhling, Maxime Lévesque, Frédéric Manseau, Zahra Shiri, Sylvain Williams

Open access · greenAbstract readReview
In one paragraph

Review in Journal of neurophysiology, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 79 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
79citing papers in PubMed, 2 pooled it
10.4field-weighted citation impact, top 1% 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

79 citing papers in PubMed, 2 syntheses or guidelines pooled it, 171 citations in OpenAlex.

  1. Pooled it
  2. GABAFrontiers in neural circuits · 2022
    Pooled it
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  20. Disuse-driven plasticity in the human thalamus and putamen.bioRxiv : the preprint server for biology · 2024
    Article

19 more citing papers are in PubMed but not listed here.

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

9 authors at 3 institutions in 3 countries.

Massimo AvoliMontreal Neurological Institute and Departments of Neurology & Neurosurgery and of Physiology, McGill University, Montréal, Québec, Canada; Facoltà di Medicina e Odontoiatria, Sapienza Università di Roma, Rome, Italy; massimo.avoli@mcgill.ca.
Marco de CurtisEpilepsy Unit, Fondazione Istituto Neurologico Carlo Besta, Milan, Italy;
Vadym GnatkovskyEpilepsy Unit, Fondazione Istituto Neurologico Carlo Besta, Milan, Italy;
Jean GotmanMontreal Neurological Institute and Departments of Neurology & Neurosurgery and of Physiology, McGill University, Montréal, Québec, Canada;
Rüdiger KöhlingOscar-Langendorff-Institute of Physiology, Rostock University Medical Center, Rostock, Germany; and.
Maxime LévesqueMontreal Neurological Institute and Departments of Neurology & Neurosurgery and of Physiology, McGill University, Montréal, Québec, Canada;
Frédéric ManseauDouglas Mental Health University Institute, McGill University, Montréal, Québec, Canada.
Zahra ShiriMontreal Neurological Institute and Departments of Neurology & Neurosurgery and of Physiology, McGill University, Montréal, Québec, Canada;
Sylvain WilliamsDouglas Mental Health University Institute, McGill University, Montréal, Québec, Canada.
McGill University · CAFondazione IRCCS Istituto Neurologico Carlo Besta · ITUniversity of Rostock · DE

Funding

CIHR 119340CIHR 143208CIHR 74609CIHR 8109
6 · The paper itself

Abstract

Low-voltage fast (LVF) and hypersynchronous (HYP) patterns are the seizure-onset patterns most frequently observed in intracranial EEG recordings from mesial temporal lobe epilepsy (MTLE) patients. Both patterns also occur in models of MTLE in vivo and in vitro, and these studies have highlighted the predominant involvement of distinct neuronal network/neurotransmitter receptor signaling in each of them. First, LVF-onset seizures in epileptic rodents can originate from several limbic structures, frequently spread, and are associated with high-frequency oscillations in the ripple band (80-200 Hz), whereas HYP onset seizures initiate in the hippocampus and tend to remain focal with predominant fast ripples (250-500 Hz). Second, in vitro intracellular recordings from principal cells in limbic areas indicate that pharmacologically induced seizure-like discharges with LVF onset are initiated by a synchronous inhibitory event or by a hyperpolarizing inhibitory postsynaptic potential barrage; in contrast, HYP onset is associated with a progressive impairment of inhibition and concomitant unrestrained enhancement of excitation. Finally, in vitro optogenetic experiments show that, under comparable experimental conditions (i.e., 4-aminopyridine application), the initiation of LVF- or HYP-onset seizures depends on the preponderant involvement of interneuronal or principal cell networks, respectively. Overall, these data may provide insight to delineate better therapeutic targets in the treatment of patients presenting with MTLE and, perhaps, with other epileptic disorders as well.

Indexed as

Brain WavesElectroencephalographyEpilepsy, Temporal LobeHumansNeural InhibitionSeizuresSignal TransductionSynaptic Potentialshigh-frequency oscillationshypersynchronous onsetlow voltage fast onsetseizures

Identifiers

PMID27075542
PMCPMC4946603
OpenAlexW2339679489

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

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.