Evidence map›Paper›PMID 18585512›Full record

ArticleAmerican heart journal2008

Lamin A/C mutation analysis in a cohort of 324 unrelated patients with idiopathic or familial dilated cardiomyopathy.

Sharie B Parks, Jessica D Kushner, Deirdre Nauman, Donna Burgess, Susan Ludwigsen, Amanda Peterson, Duanxiang Li, Petra Jakobs, Michael Litt, Charles B Porter and 2 more

Open access · greenAbstract readComparative Study
In one paragraph

Article in American heart journal, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 128 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
128citing papers in PubMed, 4 pooled it
8.0field-weighted citation impact, top 2% 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

128 citing papers in PubMed, 4 syntheses or guidelines pooled it, 254 citations in OpenAlex.

  1. Pooled it
  2. Genetic evaluation of cardiomyopathy: a clinical practice resource of the American College of Medical Genetics and Genomics (ACMG).Genetics in medicine : official journal of the American College of Medical Genetics · 2018
    Guideline
  3. Genotype-phenotype associations in dilated cardiomyopathy: meta-analysis on more than 8000 individuals.Clinical research in cardiology : official journal of the German Cardiac Society · 2017
    Pooled it
  4. Overlapping syndromes in laminopathies: a meta-analysis of the reported literature.Acta myologica : myopathies and cardiomyopathies : official journal of the Mediterranean Society of Myology · 2013
    Pooled it
  5. Review
  6. Article
  7. Article
  8. Article
  9. Article
  10. Review
  11. Cardiac phenotypes in LMNA mutations.Current opinion in cardiology · 2025
    Review
  12. What Do We Know about Peripartum Cardiomyopathy? Yesterday, Today, Tomorrow.International journal of molecular sciences · 2024
    Review
  13. Review
  14. Review
  15. Article
  16. Article
  17. A silent interweaving: interatrial block and laminopathy.European heart journal. Case reports · 2023
    Article
  18. Article
  19. Review
  20. The Genetic Evaluation of Dilated Cardiomyopathy.Structural heart : the journal of the Heart Team · 2023
    Review

68 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

12 authors at 4 institutions in 1 country.

Sharie B ParksDivision of Cardiovascular Medicine, Oregon Health and Science University, Portland, OR, USA.
Jessica D Kushner
Deirdre Nauman
Donna Burgess
Susan Ludwigsen
Amanda Peterson
Duanxiang Li
Petra Jakobs
Michael Litt
Charles B Porter
Peter S Rahko
Ray E Hershberger
Oregon Health & Science University · USUniversity of Miami · USThe University of Kansas Health System · USUniversity of Wisconsin–Madison · US

Funding

YOUTH, Osteoporosis, and Understanding Total Health (YOUTH)M01RR000334 · NCRR · OREGON HEALTH & SCIENCE UNIVERSITY · PI DORSA, DANIEL MICHAEL · 1985 to 2006
$30.6M
FAMILIAL DILATED CARDIOMYOPATHY--DETECTION/GENE MAPPINGR01HL058626 · NHLBI · UNIVERSITY OF MIAMI SCHOOL OF MEDICINE · PI HERSHBERGER, RAY E. · 1998 to 2011
$6.0M
NCRR NIH HHS 5 M01 RR000334NCRR NIH HHS M01 RR000334NHLBI NIH HHS R01 HL058626NHLBI NIH HHS R01- HL58626
6 · The paper itself

Abstract

backgroundLamin A/C mutations are a well-established cause of dilated cardiomyopathy (DCM), although their frequency has not been examined in a large cohort of patients. We sought to examine the frequency of mutations in LMNA, the gene encoding lamin A/C, in patients with idiopathic (IDC) or familial dilated cardiomyopathy (FDC).

methodsClinical cardiovascular data, family histories, and blood samples were collected from 324 unrelated IDC probands, of whom 187 had FDC. DNA samples were sequenced for nucleotide alterations in LMNA. Likely protein-altering mutations were followed up by evaluating additional family members, when possible.

resultsWe identified 18 protein-altering LMNA variants in 19 probands or 5.9% of all cases (7.5% of FDC; 3.6% of IDC). Of the 18 alterations, 11 were missense (one present in 2 kindreds), 3 were nonsense, 3 were insertion/deletions, and 1 was a splice site alteration. Conduction system disease and DCM were common in carriers of LMNA variants. Unexpectedly, in 6 of the 19 kindreds with a protein-altering LMNA variant (32%), at least one affected family member was negative for the LMNA variant.

conclusionsLamin A/C variants were observed with a frequency of 5.9% in probands with DCM. The novel observation of FDC pedigrees in which not all affected individuals carry the putative disease-causing LMNA mutation suggests that some protein-altering LMNA variants are not causative or that some proportion of FDC may be because of multiple causative factors. These findings warrant increased caution in FDC research and molecular diagnostics.

Indexed as

HeterozygoteMutation, MissenseAdultCardiomyopathy, DilatedCohort StudiesDNA Mutational AnalysisFemaleGene Expression RegulationGenetic Predisposition to DiseaseHumansLamin Type AMaleMiddle AgedNuclear LaminaPedigreePolymerase Chain ReactionLamin Type A

Identifiers

PMID18585512
PMCPMC2527054
OpenAlexW2072801460

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.