Evidence map›Paper›PMID 40610603›Full record

ArticleScientific reports2025

Clinical and metabolic consequences of a historic pathogenic lamin A/C founder variant.

L Y Wong, T Torfs, S J V Vanherle, J Janssen, G R F Claes, S L V M Stroeks, M M A Willemars, F Schianchi, D Kapsokalyvas, E Weltjens and 12 more

Abstract read
In one paragraph

Article in Scientific reports, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
–field-weighted citation impact
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

2 citing papers in PubMed.

  1. Article
  2. 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

22 authors.

L Y Wong *Department of Clinical Genetics, Maastricht University Medical Center+, Maastricht, the Netherlands.
T Torfs *Department of Cardiology, Maastricht University, Maastricht, the Netherlands.
S J V VanherleDepartment of Clinical Genetics, Maastricht University Medical Center+, Maastricht, the Netherlands.
J JanssenDepartment of Clinical Genetics, Maastricht University Medical Center+, Maastricht, the Netherlands.
G R F ClaesDepartment of Clinical Genetics, Maastricht University Medical Center+, Maastricht, the Netherlands.
S L V M StroeksDepartment of Clinical Genetics, Maastricht University Medical Center+, Maastricht, the Netherlands.
M M A WillemarsDepartment of Genetics and Cell Biology, Maastricht University, Maastricht, the Netherlands.
F SchianchiDepartment of Genetics and Cell Biology, Maastricht University, Maastricht, the Netherlands.
D KapsokalyvasDepartment of Genetics and Cell Biology, Maastricht University, Maastricht, the Netherlands.
E WeltjensDepartment of Clinical Genetics, Maastricht University Medical Center+, Maastricht, the Netherlands.
A SwinnenDepartment of Clinical Genetics, Maastricht University Medical Center+, Maastricht, the Netherlands.
A StrzeleckaDepartment of Clinical Genetics, Maastricht University Medical Center+, Maastricht, the Netherlands.
I P C KrapelsDepartment of Clinical Genetics, Maastricht University Medical Center+, Maastricht, the Netherlands.
S R B HeymansDepartment of Cardiology, Maastricht University, Maastricht, the Netherlands.
J GlatzDepartment of Clinical Genetics, Maastricht University Medical Center+, Maastricht, the Netherlands.
A van den WijngaardDepartment of Clinical Genetics, Maastricht University Medical Center+, Maastricht, the Netherlands.
H G BrunnerDepartment of Clinical Genetics, Maastricht University Medical Center+, Maastricht, the Netherlands.
J BroersDepartment of Genetics and Cell Biology, Maastricht University, Maastricht, the Netherlands.
J F P LuikenDepartment of Clinical Genetics, Maastricht University Medical Center+, Maastricht, the Netherlands.
M F HoesDepartment of Clinical Genetics, Maastricht University Medical Center+, Maastricht, the Netherlands.
J A J Verdonschot *Department of Clinical Genetics, Maastricht University Medical Center+, Maastricht, the Netherlands. job.verdonschot@mumc.nl.
M Nabben *Department of Clinical Genetics, Maastricht University Medical Center+, Maastricht, the Netherlands. m.nabben@maastrichtuniversity.nl.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

A novel LMNA p.(Glu105Leu) variant was identified in five families with dilated cardiomyopathy (DCM), revealed as a local founder variant originating approximately 650 years ago. Genetic testing and clinical analysis of 795 DCM patients demonstrated that probands with this variant typically present with severe DCM in their sixties, characterized by high prevalence of late gadolinium enhancement, arrhythmias, and conduction disorders. Time-to-event analysis suggested a later onset of clinical symptoms compared to other LMNA variants, with a trend towards longer event-free survival. Microscopic imaging of patient fibroblasts, induced pluripotent stem cell-derived cardiomyocytes (iPSC-CMs), and heart tissue confirmed structural nuclear LMNA-associated abnormalities. Patient iPSC-CMs exhibited distinct sarcomeric disorganization, increased glucose uptake and glycogen content, reduced mitochondrial function and biogenesis, and delayed contractile function. These findings support the pathogenicity of the variant and demonstrate its profound impact on structural and metabolic functions in cardiomyocytes.

Indexed as

Cardiomyopathy, DilatedFounder EffectLamin Type AAdultFemaleFibroblastsHumansInduced Pluripotent Stem CellsMaleMiddle AgedMitochondriaMutationMyocytes, CardiacPedigreeLamin Type ALMNA protein, human

Identifiers

PMID40610603
PMCPMC12229498

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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.