Evidence map›Paper›PMID 33090489›Full record

ArticleEpilepsia2020

Polygenic risk heterogeneity among focal epilepsies.

Marie Gramm, Costin Leu, Eduardo Pérez-Palma, Lisa Ferguson, Lara Jehi, Mark J Daly, Imad M Najm, Robyn M Busch, Dennis Lal

Open access · hybridAbstract 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 5 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed, 1 pooled it
0.3field-weighted citation impact, top 41% 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

5 citing papers in PubMed, 1 synthesis or guideline pooled it, 11 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Article
  4. Article
  5. 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

9 authors at 4 institutions in 3 countries.

Marie GrammGenomic Medicine Institute, Lerner Research Institute, Cleveland Clinic, Cleveland, OH, USA.ORCID 0000-0002-4217-5277
Costin LeuGenomic Medicine Institute, Lerner Research Institute, Cleveland Clinic, Cleveland, OH, USA.ORCID 0000-0003-0598-3301
Eduardo Pérez-PalmaGenomic Medicine Institute, Lerner Research Institute, Cleveland Clinic, Cleveland, OH, USA.
Lisa FergusonEpilepsy Center, Neurological Institute, Cleveland Clinic, Cleveland, OH, USA.
Lara JehiGenomic Medicine Institute, Lerner Research Institute, Cleveland Clinic, Cleveland, OH, USA.ORCID 0000-0002-8041-6377
Mark J DalyStanley Center for Psychiatric Research, Broad Institute of MIT & Harvard, Cambridge, MA, USA.
Imad M NajmEpilepsy Center, Neurological Institute, Cleveland Clinic, Cleveland, OH, USA.
Robyn M BuschGenomic Medicine Institute, Lerner Research Institute, Cleveland Clinic, Cleveland, OH, USA.ORCID 0000-0002-5442-4912
Dennis LalGenomic Medicine Institute, Lerner Research Institute, Cleveland Clinic, Cleveland, OH, USA.ORCID 0000-0002-5173-9636
Cleveland Clinic · USBroad Institute · USCleveland Clinic Lerner College of Medicine · USUniversity of Cologne · DE

Funding

Clinical and Translational Science Collaborative of ClevelandUL1TR000439 · NCATS · CASE WESTERN RESERVE UNIVERSITY · PI KONSTAN, MICHAEL W. · 2012 to 2016
$50.0M
Cleveland Clinic Epilepsy CenterNCATS NIH HHS UL1 TR000439Projekt DEAL
6 · The paper itself

Abstract

Focal epilepsy (FE) is clinically highly heterogeneous. It has been shown recently that not only rare but also a subset of common genetic variants confer risk for FE. The relatively modest power of genetic studies in FE suggests a high genetic heterogeneity of FE when grouped as one disorder. We hypothesize that the clinical heterogeneity of FE is correlated with genetic heterogeneity on a common risk variant level. To test the hypothesis, we used an FE polygenic risk score "FE-PRS" that combines small effect sizes of thousands of common variants from the largest FE-GWAS (genome-wide association study) into a single measure. We grouped 414 individuals with FE according to common clinical features into subgroups, either by one feature at a time or by all features combined in a cluster analysis. We examined their association with FE-PRS compared to 20 435 matched population controls and observed heterogeneous FE-PRS burden among the subgroups. The highest phenotypic variance explained by FE-PRS was identified in a cluster analysis-defined FE subgroup where all individuals had unknown etiologies and psychiatric comorbidities, and the majority had early onset seizures. Our results indicate that genetic factors associated with FE have differential burden among FE subtypes. Future studies using better-powered FE-PRS might have clinical utility.

Indexed as

Cohort StudiesEpilepsies, PartialFemaleGenetic Predisposition to DiseaseGenome-Wide Association StudyHumansMaleMultifactorial InheritanceRegistriesWhite Peopleclusteringfocal epilepsygeneticspolygenic risk

Identifiers

PMID33090489
PMCPMC13178686
OpenAlexW3093901902

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.