Evidence map›Paper›PMID 30740690›Full record

ArticleEpilepsia2019

A mouse model of seizures in anti-N-methyl-d-aspartate receptor encephalitis.

Olga Taraschenko, Howard S Fox, Sean J Pittock, Anastasia Zekeridou, Maftuna Gafurova, Ember Eldridge, Jinxu Liu, Shashank M Dravid, Raymond Dingledine

Erratum issuedAbstract read
In one paragraph

Article in Epilepsia, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 39 papers.

0numbers the graph read from it
0cells of the map it votes in
39citing papers in PubMed
5.0field-weighted citation impact, top 4% 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

39 citing papers in PubMed, 66 citations in OpenAlex.

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  17. eNeuro · 2023
    Article
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

9 authors at 5 institutions in 1 country.

Olga TaraschenkoDivision of Epilepsy, Department of Neurological Sciences, University of Nebraska Medical Center, Omaha, Nebraska.ORCID 0000-0003-4848-8909
Howard S FoxDepartment of Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center, Omaha, Nebraska.
Sean J PittockLaboratory Medicine and Pathology, Department of Neurology, Mayo Clinic College of Medicine, Rochester, Minnesota.
Anastasia ZekeridouLaboratory Medicine and Pathology, Department of Neurology, Mayo Clinic College of Medicine, Rochester, Minnesota.
Maftuna GafurovaCollege of Arts and Sciences, University of Nebraska Omaha, Omaha, Nebraska.
Ember EldridgeDivision of Epilepsy, Department of Neurological Sciences, University of Nebraska Medical Center, Omaha, Nebraska.
Jinxu LiuDepartment of Pharmacology, Creighton University, Omaha, Nebraska.
Shashank M DravidDepartment of Pharmacology, Creighton University, Omaha, Nebraska.
Raymond DingledineDepartment of Pharmacology, Emory University School of Medicine, Atlanta, Georgia.
University of Nebraska Medical Center · USCreighton University · USMayo Clinic · USEmory University · USUniversity of Nebraska at Omaha · US

Funding

Therapeutics Core (Page 286)P30MH062261 · NIMH · UNIVERSITY OF NEBRASKA MEDICAL CENTER · PI GENDELMAN, HOWARD E · 2000 to 2021
$37.7M
Exploiting EP2 receptor biology to target seizure-related neuroinflammation selectivelyR01NS112308 · NINDS · EMORY UNIVERSITY · PI VARVEL, NICHOLAS · 2020 to 2024
$2.6M
Inflammatory control of blood-brain barrier integrity and epileptogenesis after seizuresR01NS097776 · NINDS · EMORY UNIVERSITY · PI DINGLEDINE, RAYMOND J · 2016 to 2020
$2.2M
NMDA receptor subtypes in basal gangliaR21NS104705 · NINDS · CREIGHTON UNIVERSITY · PI DRAVID, SHASHANK MANOHAR · 2018 to 2019
$412k
NIMH NIH HHS 3P30MH062261NIMH NIH HHS P30 MH062261NINDS NIH HHS 1R01NS097776NINDS NIH HHS R01 NS097776NINDS NIH HHS R01 NS112308NINDS NIH HHS R21 NS104705
6 · The paper itself

Abstract

objectiveSeizures develop in 80% of patients with anti-N-methyl-d-aspartate receptor (NMDAR) encephalitis, and these represent a major cause of morbidity and mortality. Anti-NMDAR antibodies have been linked to memory loss in encephalitis; however, their role in seizures has not been established. We determined whether anti-NMDAR antibodies from autoimmune encephalitis patients are pathogenic for seizures.

methodsWe performed continuous intracerebroventricular infusion of cerebrospinal fluid (CSF) or purified immunoglobulin (IgG) from the CSF of patients with anti-NMDAR encephalitis or polyclonal rabbit anti-NMDAR IgG, in male C57BL/6 mice. Seizure status during a 2-week treatment was assessed with video-electroencephalography. We assessed memory, anxiety-related behavior, and motor function at the end of treatment and assessed the extent of neuronal damage and gliosis in the CA1 region of hippocampus. We also performed whole-cell patch recordings from the CA1 pyramidal neurons in hippocampal slices of mice with seizures.

resultsProlonged exposure to rabbit anti-NMDAR IgG, patient CSF, or human IgG purified from the CSF of patients with encephalitis induced seizures in 33 of 36 mice. The median number of seizures recorded in 2 weeks was 13, 39, and 35 per mouse in these groups, respectively. We observed only 18 brief nonconvulsive seizures in 11 of 29 control mice (median seizure count of 0) infused with vehicle (n = 4), normal CSF obtained from patients with noninflammatory central nervous system (CNS) conditions (n = 12), polyclonal rabbit IgG (n = 7), albumin (n = 3), and normal human IgG (n = 3). We did not observe memory deficits, anxiety-related behavior, or motor impairment measured at 2 weeks in animals treated with CSF from affected patients or rabbit IgG. Furthermore, there was no evidence of hippocampal cell loss or astrocyte proliferation in the same mice. SIGNIFICANCE: Our findings indicate that autoantibodies can induce seizures in anti-NMDAR encephalitis and offer a model for testing novel therapies for refractory autoimmune seizures.

Indexed as

AnimalsAnti-N-Methyl-D-Aspartate Receptor EncephalitisAutoantibodiesBrainDisease Models, AnimalElectroencephalographyMaleMiceMice, Inbred C57BLSeizuresAutoantibodiesanimal modelanti-NMDAR antibodiesautoantibodiesautoimmune seizuresrefractory seizures

Identifiers

PMID30740690
PMCPMC6684284
OpenAlexW2912242734

What OpenQuestion holds

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Read underepoch 390

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.