Evidence map›Paper›PMID 28771248›Full record

ArticleGenetics in medicine : official journal of the American College of Medical Genetics2018

Interpreting the clinical significance of combined variants in multiple recessive disease genes: systematic investigation of Joubert syndrome yields little support for oligogenicity.

Ian G Phelps, Jennifer C Dempsey, Megan E Grout, Christine R Isabella, Hannah M Tully, Dan Doherty, Ruxandra Bachmann-Gagescu

Open access · bronzeAbstract read
In one paragraph

Article in Genetics in medicine : official journal of the American College of Medical Genetics, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
2.6field-weighted citation impact, top 10% 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

17 citing papers in PubMed, 28 citations in OpenAlex.

  1. Review
  2. Article
  3. Review
  4. Article
  5. Article
  6. The Joubert-Meckel-Nephronophthisis Spectrum of Ciliopathies.Annual review of genomics and human genetics · 2022
    Review
  7. Review
  8. Genotype-phenotype correlates in Joubert syndrome: A review.American journal of medical genetics. Part C, Seminars in medical genetics · 2022
    Review
  9. Review
  10. The morbid genome of ciliopathies: an update.Genetics in medicine : official journal of the American College of Medical Genetics · 2020
    Article
  11. Healthcare recommendations for Joubert syndrome.American journal of medical genetics. Part A · 2020
    Review
  12. Review
  13. Article
  14. Article
  15. Article
  16. Review
  17. 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

7 authors at 2 institutions in 2 countries.

Ian G PhelpsDepartment of Pediatrics, University of Washington, Seattle, Washington, USA.
Jennifer C DempseyDepartment of Pediatrics, University of Washington, Seattle, Washington, USA.
Megan E GroutDepartment of Pediatrics, University of Washington, Seattle, Washington, USA.
Christine R IsabellaDepartment of Pediatrics, University of Washington, Seattle, Washington, USA.
Hannah M TullyDepartment of Neurology, University of Washington, Seattle, Washington, USA.
Dan DohertyDepartment of Pediatrics, University of Washington, Seattle, Washington, USA.
Ruxandra Bachmann-GagescuInstitute of Medical Genetics, University of Zurich, Zurich, Switzerland.
University of Washington · USUniversity of Zurich · CH

Funding

Intellectual and Developmental Disabilities Research CenterU54HD083091 · NICHD · UNIVERSITY OF WASHINGTON · PI DOHERTY, DANIEL · 2014 to 2019
$7.9M
Joubert syndrome and related disorders of hindbrain developmentR01NS064077 · NINDS · UNIVERSITY OF WASHINGTON · PI DOHERTY, DANIEL · 2010 to 2014
$1.8M
Medical Research Council G1001799Medical Research Council MR/N01104X/1Medical Research Council MR/N01104X/2NICHD NIH HHS U54 HD083091NINDS NIH HHS R01 NS064077Wellcome TrustWellcome Trust WT095219MA
6 · The paper itself

Abstract

PurposeNext-generation sequencing (NGS) often identifies multiple rare predicted-deleterious variants (RDVs) in different genes associated with a recessive disorder in a given patient. Such variants have been proposed to contribute to digenicity/oligogenicity or "triallelism" or to act as genetic modifiers.MethodsUsing the recessive ciliopathy Joubert syndrome (JBTS) as a model, we investigated these possibilities systematically, relying on NGS of known JBTS genes in a large JBTS and two control cohorts.Results65% of affected individuals had a recessive genetic cause, while 4.9% were candidates for di-/oligogenicity, harboring heterozygous RDVs in two or more genes, compared with 4.2-8% in controls (P = 0.66-0.21). Based on Exome Aggregation Consortium (ExAC) allele frequencies, the probability of cumulating RDVs in any two JBTS genes is 9.3%. We found no support for triallelism, as no unaffected siblings carried the same biallelic RDVs as their affected relative. Sixty percent of individuals sharing identical causal RDVs displayed phenotypic discordance. Although 38% of affected individuals harbored RDVs in addition to the causal mutations, their presence did not correlate with phenotypic severity.ConclusionOur data offer little support for triallelism or digenicity/oligogenicity as clinically relevant inheritance modes in JBTS. While phenotypic discordance supports the existence of genetic modifiers, identifying clinically relevant modifiers remains challenging.

Indexed as

Genes, RecessiveGenetic Association StudiesGenetic Predisposition to DiseaseGenetic VariationAbnormalities, MultipleAllelesCerebellumEye AbnormalitiesGenes, ModifierGenetic Diseases, InbornHumansKidney Diseases, CysticModels, GeneticMultifactorial InheritanceMutationPhenotype

Identifiers

PMID28771248
PMCPMC5797514
OpenAlexW2744376948

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.