Evidence map›Paper›PMID 30874549›Full record

ArticleNature communications2019

KCC2 overexpression prevents the paradoxical seizure-promoting action of somatic inhibition.

Vincent Magloire, Jonathan Cornford, Andreas Lieb, Dimitri M Kullmann, Ivan Pavlov

Open access · goldAbstract read
In one paragraph

Article in Nature communications, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 49 papers.

0numbers the graph read from it
0cells of the map it votes in
49citing papers in PubMed
6.3field-weighted citation impact, top 2% 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

49 citing papers in PubMed, 100 citations in OpenAlex.

  1. Article
  2. Review
  3. Article
  4. Article
  5. Enhancing KCC2 function reduces interictal activity and prevents seizures in temporal lobe epilepsy.Proceedings of the National Academy of Sciences of the United States of America · 2026
    Article
  6. Hippocampal Chandelier Cells Modulate Seizure Susceptibility and Severity.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2026
    Article
  7. Article
  8. Article
  9. Adeno-Associated Viral Vectors in the Treatment of Epilepsy.International journal of molecular sciences · 2024
    Review
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Microscale Neuronal Activity Collectively Drives Chaotic and Inflexible Dynamics at the Macroscale in Seizures.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2023
    Article
  17. Article
  18. Article
  19. Article
  20. Frontiers in neurology · 2023
    Review
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

5 authors at 2 institutions in 1 country.

Vincent MagloireDepartment of Clinical and Experimental Epilepsy, UCL Institute of Neurology, University College London, London, WC1N 3BG, UK. v.magloire@ucl.ac.uk.ORCID http://orcid.org/0000-0003-4006-7042
Jonathan CornfordDepartment of Clinical and Experimental Epilepsy, UCL Institute of Neurology, University College London, London, WC1N 3BG, UK.
Andreas LiebDepartment of Clinical and Experimental Epilepsy, UCL Institute of Neurology, University College London, London, WC1N 3BG, UK.ORCID http://orcid.org/0000-0001-9567-649X
Dimitri M KullmannDepartment of Clinical and Experimental Epilepsy, UCL Institute of Neurology, University College London, London, WC1N 3BG, UK.ORCID http://orcid.org/0000-0001-6696-3545
Ivan PavlovDepartment of Clinical and Experimental Epilepsy, UCL Institute of Neurology, University College London, London, WC1N 3BG, UK. i.pavlov@ucl.ac.uk.
University College London · GBEpilepsy Research UK · GB

Funding

Medical Research Council G0802158Medical Research Council G116/147Medical Research Council MR/L01095X/1Wellcome Trust 209807/Z/17/ZWellcome Trust 212285/Z/18/Z
6 · The paper itself

Abstract

Although cortical interneurons are apparently well-placed to suppress seizures, several recent reports have highlighted a paradoxical role of perisomatic-targeting parvalbumin-positive (PV+) interneurons in ictogenesis. Here, we use an acute in vivo model of focal cortical seizures in awake behaving mice, together with closed-loop optogenetic manipulation of PV+ interneurons, to investigate their function during seizures. We show that photo-depolarization of PV+ interneurons rapidly switches from an anti-ictal to a pro-ictal effect within a few seconds of seizure initiation. The pro-ictal effect of delayed photostimulation of PV+ interneurons was not shared with dendrite-targeting somatostatin-positive (SOM+) interneurons. We also show that this switch can be prevented by overexpression of the neuronal potassium-chloride co-transporter KCC2 in principal cortical neurons. These results suggest that strategies aimed at improving the ability of principal neurons to maintain a trans-membrane chloride gradient in the face of excessive network activity can prevent interneurons from contributing to seizure perpetuation.

Indexed as

AnimalsChloridesDisease Models, AnimalElectrocorticographyElectrodesFemaleGenetic VectorsHumansInterneuronsK Cl- CotransportersLentivirusMaleMiceNeocortexNeural InhibitionNeural PathwaysChloridesK Cl- CotransportersParvalbuminsSomatostatinSymporters

Identifiers

PMID30874549
PMCPMC6420604
OpenAlexW2950313546

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.