Evidence map›Paper›PMID 33098311›Full record

ArticleEpilepsia2020

Generalized, focal, and combined epilepsies in families: New evidence for distinct genetic factors.

Colin A Ellis, Ruth Ottman, Michael P Epstein, Samuel F Berkovic, Epi4K Consortium

Open access · bronzeAbstract read
In one paragraph

Article in Epilepsia, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
0.8field-weighted citation impact, top 29% 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

2 citing papers in PubMed, 7 citations in OpenAlex.

  1. Article
  2. Article
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 4 institutions in 2 countries.

Colin A EllisDepartment of Neurology, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA.ORCID 0000-0003-2152-8106
Ruth OttmanDepartments of Epidemiology and Neurology, and the G. H. Sergievsky Center, Columbia University, New York, NY, USA.
Michael P EpsteinDepartment of Human Genetics, Emory University School of Medicine, Atlanta, GA, USA.
Samuel F BerkovicEpilepsy Research Centre, Department of Medicine, University of Melbourne (Austin Health), Heidelberg, VIC, Australia.ORCID 0000-0003-4580-841X
Epi4K Consortium
Columbia University Irving Medical Center · USEmory University · USThe University of Melbourne · AUUniversity of Pennsylvania · US

Funding

Center for Research on the Ethical, Legal and Social Implications of Psychiatric, Neurologic and Behavioral GeneticsP50HG007257 · NHGRI · COLUMBIA UNIVERSITY HEALTH SCIENCES · PI APPELBAUM, PAUL STUART · 2013 to 2017
$5.4M
Psychosocial Impact of Genetics in EpilepsyR01NS104076 · NINDS · COLUMBIA UNIVERSITY HEALTH SCIENCES · PI OTTMAN, RUTH · 2018 to 2022
$3.2M
Remapping neurology through translation and innovationT32NS091008 · NINDS · UNIVERSITY OF PENNSYLVANIA · PI AGUIRRE, GEOFFREY KARL, JENSEN, FRANCES E · 2015 to 2024
$3.0M
Statistical Tests for Mapping Genetic Determinants of Complex TraitsR01GM117946 · NIGMS · EMORY UNIVERSITY · PI EPSTEIN, MICHAEL PHILIP, GHOSH, DEBASHIS · 2016 to 2019
$1.2M
5 of 7 Epi4K: Multiplex Families & Pairs ProjectU01NS077367 · NINDS · UNIVERSITY OF MELBOURNE · PI BERKOVIC, SAMUEL FRANK, COSSETTE, PATRICK · 2011 to 2013
$1.0M
NHGRI NIH HHS P50 HG007257NIGMS NIH HHS R01 GM117946NINDS NIH HHS R01 NS104076NINDS NIH HHS T32 NS091008NINDS NIH HHS U01 NS077367
6 · The paper itself

Abstract

objectiveTo determine the roles of shared and distinct genetic influences on generalized and focal epilepsy operating in individuals who manifest features of both types (combined epilepsies), and in families manifesting both generalized and focal epilepsies in separate individuals (mixed families).

methodsWe analyzed the deeply phenotyped Epi4K cohort of multiplex families (≥3 affected individuals per family) using methods that quantify the aggregation of phenotypes within families and the relatedness of individuals with different phenotypes within family pedigrees.

resultsThe cohort included 281 families containing 1021 individuals with generalized (n = 484), focal (304), combined (51), or unclassified (182) epilepsies. The odds of combined epilepsy was higher in relatives of participants with combined epilepsy than in relatives of those with other epilepsy types (odds ratio [OR] 5.2, 95% confidence interval [CI] 1.7-16.1, P = .004). Individuals with combined epilepsy co-occurred in families more often than expected by chance (P = .03). Within mixed families, individuals with each type of epilepsy were more closely related to relatives with the same type than to relatives with other types (P < .001). SIGNIFICANCE: These findings suggest that distinct genetic influences underlie the recently recognized entity of combined epilepsies, just as generalized epilepsies and focal epilepsies each have distinct genetic influences. Mixed families may in part reflect chance co-occurrence of these distinct genetic influences. These conclusions have important implications for molecular genetic studies aimed at identifying genetic determinants of the epilepsies.

Indexed as

AdultEpilepsies, PartialEpilepsy, GeneralizedFamilyFemaleGenetic Predisposition to DiseaseHumansMalePhenotypePhorbolspedilstatinPhorbolscombinedepilepsyfamilialfocalgeneralizedgeneticsphenotype

Identifiers

PMID33098311
PMCPMC7725856
OpenAlexW3094135572

What OpenQuestion holds

Textmetadata
LicenceTDM
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.