Evidence map›Paper›PMID 17967977›Full record

ArticleCirculation2007

Mutation in glycerol-3-phosphate dehydrogenase 1 like gene (GPD1-L) decreases cardiac Na+ current and causes inherited arrhythmias.

Barry London, Michael Michalec, Haider Mehdi, Xiaodong Zhu, Laurie Kerchner, Shamarendra Sanyal, Prakash C Viswanathan, Arnold E Pfahnl, Lijuan L Shang, Mohan Madhusudanan and 8 more

Abstract read
In one paragraph

Article in Circulation, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 175 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
175citing papers in PubMed, 1 pooled it
25.6field-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

175 citing papers in PubMed, 1 synthesis or guideline pooled it, 440 citations in OpenAlex.

  1. Guideline
  2. Trial
  3. Article
  4. Review
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  6. Article
  7. Article
  8. Review
  9. Brugada syndrome.Nature reviews. Disease primers · 2025
    Review
  10. Article
  11. Review
  12. Article
  13. Article
  14. Review
  15. Review
  16. Review
  17. Article
  18. Molecular Pathways and Animal Models of Arrhythmias.Advances in experimental medicine and biology · 2024
    Article
  19. Review
  20. Article

115 more citing papers are in PubMed but not listed here.

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

18 authors at 3 institutions in 1 country.

Barry LondonCardiovascular Institute, University of Pittsburgh Medical Center, Scaife S-572, 200 Lothrop St, Pittsburgh, PA 15213-2582, USA. londonb@upmc.edu
Michael Michalec
Haider Mehdi
Xiaodong Zhu
Laurie Kerchner
Shamarendra Sanyal
Prakash C Viswanathan
Arnold E Pfahnl
Lijuan L Shang
Mohan Madhusudanan
Catherine J Baty
Stephen Lagana
Ryan Aleong
Rebecca Gutmann
Michael J Ackerman
Dennis M McNamara
Raul Weiss
Samuel C Dudley
Mayo Clinic · USAtlanta VA Medical Center · USEmory University · US

Funding

CLINICAL AND MOLECULAR ANALYSIS OF THE BRUGADA SYNDROMER01HL062300 · NHLBI · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI SABA, SAMIR FAWZI · 1999 to 2011
$2.8M
Metabolic Regulation of Sodium ChannelsR01HL106592 · NHLBI · UNIVERSITY OF ILLINOIS AT CHICAGO · PI DUDLEY, SAMUEL C · 2011 to 2014
$1.6M
Angiotensin converting enzyme, angiotensin II, and arrhythmiaR01HL085558 · NHLBI · UNIVERSITY OF ILLINOIS AT CHICAGO · PI DUDLEY, SAMUEL C · 2007 to 2010
$1.5M
Stem Cell Therapy and ArrhythmiaR01HL073753 · NHLBI · UNIVERSITY OF ILLINOIS AT CHICAGO · PI DUDLEY, SAMUEL C · 2005 to 2008
$1.4M
NHLBI NIH HHS R01 HL062300NHLBI NIH HHS R01 HL073753NHLBI NIH HHS R01 HL085558NHLBI NIH HHS R01 HL106592NHLBI NIH HHS R01 HL62300NHLBI NIH HHS R01 HL73753
6 · The paper itself

Abstract

backgroundBrugada syndrome is a rare, autosomal-dominant, male-predominant form of idiopathic ventricular fibrillation characterized by a right bundle-branch block and ST elevation in the right precordial leads of the surface ECG. Mutations in the cardiac Na+ channel SCN5A on chromosome 3p21 cause approximately 20% of the cases of Brugada syndrome; most mutations decrease inward Na+ current, some by preventing trafficking of the channels to the surface membrane. We previously used positional cloning to identify a new locus on chromosome 3p24 in a large family with Brugada syndrome and excluded SCN5A as a candidate gene. METHODS AND

resultsWe used direct sequencing to identify a mutation (A280V) in a conserved amino acid of the glycerol-3-phosphate dehydrogenase 1-like (GPD1-L) gene. The mutation was present in all affected individuals and absent in >500 control subjects. GPD1-L RNA and protein are abundant in the heart. Compared with wild-type GPD1-L, coexpression of A280V GPD1-L with SCN5A in HEK cells reduced inward Na+ currents by approximately 50% (P<0.005). Wild-type GPD1-L localized near the cell surface to a greater extent than A280V GPD1-L. Coexpression of A280V GPD1-L with SCN5A reduced SCN5A cell surface expression by 31+/-5% (P=0.01).

conclusionsGPD1-L is a novel gene that may affect trafficking of the cardiac Na+ channel to the cell surface. A GPD1-L mutation decreases SCN5A surface membrane expression, reduces inward Na+ current, and causes Brugada syndrome.

Indexed as

AnimalsBrugada SyndromeChlorocebus aethiopsChromosomes, Human, Pair 3COS CellsFamily HealthFemaleGlycerolphosphate DehydrogenaseHeartHumansItalyKidneyMaleMuscle ProteinsNAV1.5 Voltage-Gated Sodium ChannelPedigreeGlycerolphosphate DehydrogenaseGPD1L protein, humanMuscle ProteinsNAV1.5 Voltage-Gated Sodium ChannelSCN5A protein, humanSodiumSodium ChannelsSugar Alcohol Dehydrogenases

Identifiers

PMID17967977
PMCPMC3150966
OpenAlexW2150145251

What OpenQuestion holds

Textmetadata
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.