Evidence map›Paper›PMID 9421465›Full record

ArticleThe Journal of clinical investigation1998

Myofibril degeneration caused by tropomodulin overexpression leads to dilated cardiomyopathy in juvenile mice.

M A Sussman, S Welch, N Cambon, R Klevitsky, T E Hewett, R Price, S A Witt, T R Kimball

Open access · bronzeAbstract read
In one paragraph

Article in The Journal of clinical investigation, 1998. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 63 papers.

0numbers the graph read from it
0cells of the map it votes in
63citing papers in PubMed
11.8field-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

63 citing papers in PubMed, 165 citations in OpenAlex.

  1. Article
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  4. Review
  5. A human FLII gene variant alters sarcomeric actin thin filament length and predisposes to cardiomyopathy.Proceedings of the National Academy of Sciences of the United States of America · 2023
    Article
  6. The Mechanisms of Thin Filament Assembly and Length Regulation in Muscles.International journal of molecular sciences · 2022
    Review
  7. Review
  8. Review
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Review
  15. HSPB7 is indispensable for heart development by modulating actin filament assembly.Proceedings of the National Academy of Sciences of the United States of America · 2017
    Article
  16. Overview of the Muscle Cytoskeleton.Comprehensive Physiology · 2017
    Review
  17. Review
  18. Article
  19. Article
  20. Article

3 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

8 authors at 4 institutions in 1 country.

M A SussmanThe Children's Hospital and Research Foundation, Cincinnati, Ohio 45229, USA. sussman@heart.chmcc.org
S Welch
N Cambon
R Klevitsky
T E Hewett
R Price
S A Witt
T R Kimball
Cincinnati Children's Hospital Medical Center · USUniversity of Cincinnati · USOrthopedic One · USUniversity of South Carolina · US

Funding

NEONATAL CARDIAC RESPONSE TO MYOFILAMENT DEGENERATIONR01HL058224 · NHLBI · CHILDREN'S HOSPITAL MED CTR (CINCINNATI) · PI SUSSMAN, MARK ALAN · 2001 to 2001
$104k
NEONATAL CARDIAC RESPONSE TO MYOFILAMENT DEGENERATIONR29HL058224 · NHLBI · CHILDREN'S HOSPITAL MED CTR (CINCINNATI) · PI SUSSMAN, MARK ALAN · 1997 to 2000
$104k
NHLBI NIH HHS HL58224-01
6 · The paper itself

Abstract

Loss of myofibril organization is a common feature of chronic dilated and progressive cardiomyopathy. To study how the heart compensates for myofibril degeneration, transgenic mice were created that undergo progressive loss of myofibrils after birth. Myofibril degeneration was induced by overexpression of tropomodulin, a component of the thin filament complex which determines and maintains sarcomeric actin filament length. The tropomodulin cDNA was placed under control of the alpha-myosin heavy chain gene promoter to overexpress tropomodulin specifically in the myocardium. Offspring with the most severe phenotype showed cardiomyopathic changes between 2 and 4 wk after birth. Hearts from these mice present characteristics consistent with dilated cardiomyopathy and a failed hypertrophic response. Histological analysis showed widespread loss of myofibril organization. Confocal microscopy of isolated cardiomyocytes revealed intense tropomodulin immunoreactivity in transgenic mice together with abnormal coincidence of tropomodulin and alpha-actinin reactivity at Z discs. Contractile function was compromised severely as determined by echocardiographic analyses and isolated Langendorff heart preparations. This novel experimentally induced cardiomyopathy will be useful for understanding dilated cardiomyopathy and the effect of thin filament-based myofibril degeneration upon cardiac structure and function.

Indexed as

Microfilament ProteinsAnimalsAntimetabolitesCardiomyopathy, DilatedCarrier ProteinsDisease Models, AnimalGene ExpressionHemodynamicsMiceMice, TransgenicMyocardial ContractionMyofibrilsPropylthiouracilTropomodulinAntimetabolitesCarrier ProteinsMicrofilament ProteinsPropylthiouracilTmod1 protein, mouseTropomodulin

Identifiers

PMID9421465
PMCPMC508539
OpenAlexW2095394161

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.