Evidence map›Paper›PMID 22863189›Full record

ArticleAmerican journal of human genetics2012

Exome sequencing followed by large-scale genotyping fails to identify single rare variants of large effect in idiopathic generalized epilepsy.

Erin L Heinzen, Chantal Depondt, Gianpiero L Cavalleri, Elizabeth K Ruzzo, Nicole M Walley, Anna C Need, Dongliang Ge, Min He, Elizabeth T Cirulli, Qian Zhao and 20 more

Open access · hybridAbstract read
In one paragraph

Article in American journal of human genetics, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 51 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
51citing papers in PubMed, 2 pooled it
11.4field-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

51 citing papers in PubMed, 2 syntheses or guidelines pooled it, 100 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Article
  4. Article
  5. Review
  6. Whole exome sequencing identifies a novel SCN1A mutation in genetic (idiopathic) generalized epilepsy and juvenile myoclonic epilepsy subtypes.Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 2020
    Article
  7. Review
  8. Phenotypic variability of GABRA1-related epilepsy in monozygotic twins.Annals of clinical and translational neurology · 2019
    Article
  9. Article
  10. Article
  11. Review
  12. Article
  13. Review
  14. Article
  15. Article
  16. Functional variants inEpilepsia open · 2017
    Article
  17. Genetic and epigenetic mechanisms of epilepsy: a review.Neuropsychiatric disease and treatment · 2017
    Review
  18. Article
  19. Article
  20. 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

30 authors at 7 institutions in 4 countries.

Erin L HeinzenCenter for Human Genome Variation, Duke University School of Medicine, Durham, NC 27708, USA. e.heinzen@duke.edu
Chantal Depondt
Gianpiero L Cavalleri
Elizabeth K Ruzzo
Nicole M Walley
Anna C Need
Dongliang Ge
Min He
Elizabeth T Cirulli
Qian Zhao
Kenneth D Cronin
Curtis E Gumbs
C Ryan Campbell
Linda K Hong
Jessica M Maia
Kevin V Shianna
Mark McCormack
Rodney A Radtke
Gerard D O'Conner
Mohamad A Mikati
William B Gallentine
Aatif M Husain
Saurabh R Sinha
Krishna Chinthapalli
Ram S Puranam
James O McNamara
Ruth Ottman
Sanjay M Sisodiya
Norman Delanty
David B Goldstein
Duke University · USCenter for Human Genetics · USRoyal College of Surgeons in Ireland · IENational Hospital for Neurology and Neurosurgery · GBBeaumont Hospital · IENew York State Psychiatric InstituteUniversité Libre de Bruxelles · BE

Funding

NEUROPATHOLOGY COREP30AG028377 · NIA · DUKE UNIVERSITY · PI WELSH-BOHMER, KATHLEEN ANNE · 2006 to 2011
$9.6M
Genetics Training Grant-Year 26T32GM007754 · NIGMS · DUKE UNIVERSITY · PI HAASE, STEVEN B · 1985 to 2019
$8.3M
Whole-genome sequencing for rare highly penetrant gene variants in schizophreniaRC2MH089915 · NIMH · DUKE UNIVERSITY · PI GOLDSTEIN, DAVID B. · 2009 to 2011
$4.6M
Full Human Genome Sequencing in ALSRC2NS070342 · NINDS · UNIV OF MASSACHUSETTS MED SCH WORCESTER · PI BROWN, ROBERT H. · 2009 to 2010
$3.6M
Whole-genome sequencing in multiplex epilepsy familiesRC2NS070344 · NINDS · DUKE UNIVERSITY · PI GOLDSTEIN, DAVID B., OTTMAN, RUTH · 2009 to 2010
$2.0M
NIA NIH HHS P30 AG028377NIGMS NIH HHS T32 GM007754NIMH NIH HHS RC2 MH089915NIMH NIH HHS RC2MH089915NINDS NIH HHS 1RC2NS070342NINDS NIH HHS RC2 NS070342NINDS NIH HHS RC2 NS070344NINDS NIH HHS RC2NS070344Wellcome TrustWellcome Trust 084730
6 · The paper itself

Abstract

Idiopathic generalized epilepsy (IGE) is a complex disease with high heritability, but little is known about its genetic architecture. Rare copy-number variants have been found to explain nearly 3% of individuals with IGE; however, it remains unclear whether variants with moderate effect size and frequencies below what are reliably detected with genome-wide association studies contribute significantly to disease risk. In this study, we compare the exome sequences of 118 individuals with IGE and 242 controls of European ancestry by using next-generation sequencing. The exome-sequenced epilepsy cases include study subjects with two forms of IGE, including juvenile myoclonic epilepsy (n = 93) and absence epilepsy (n = 25). However, our discovery strategy did not assume common genetic control between the subtypes of IGE considered. In the sequence data, as expected, no variants were significantly associated with the IGE phenotype or more specific IGE diagnoses. We then selected 3,897 candidate epilepsy-susceptibility variants from the sequence data and genotyped them in a larger set of 878 individuals with IGE and 1,830 controls. Again, no variant achieved statistical significance. However, 1,935 variants were observed exclusively in cases either as heterozygous or homozygous genotypes. It is likely that this set of variants includes real risk factors. The lack of significant association evidence of single variants with disease in this two-stage approach emphasizes the high genetic heterogeneity of epilepsy disorders, suggests that the impact of any individual single-nucleotide variant in this disease is small, and indicates that gene-based approaches might be more successful for future sequencing studies of epilepsy predisposition.

Indexed as

Base SequenceEpilepsy, GeneralizedExomeGenetic Predisposition to DiseaseGenome-Wide Association StudyGenotypeHumansMolecular Sequence DataSequence AlignmentSequence Analysis, DNAWhite People

Identifiers

PMID22863189
PMCPMC3415540
OpenAlexW1966547101

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.