Evidence map›Paper›PMID 19670825›Full record

ArticleMolecular & cellular biomechanics : MCB2009

Hypertrophic gene expression induced by chronic stretch of excised mouse heart muscle.

Anna M Raskin, Masahiko Hoshijima, Eric Swanson, Andrew D McCulloch, Jeffrey H Omens

Abstract read
In one paragraph

Article in Molecular & cellular biomechanics : MCB, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
1.7field-weighted citation impact, top 15% 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

12 citing papers in PubMed, 20 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Timing and magnitude of systolic stretch affect myofilament activation and mechanical work.American journal of physiology. Heart and circulatory physiology · 2014
    Article
  8. Article
  9. Article
  10. Excess protein O-GlcNAcylation and the progression of diabetic cardiomyopathy.American journal of physiology. Regulatory, integrative and comparative physiology · 2012
    Article
  11. Article
  12. Article
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

5 authors at 1 institution in 1 country.

Anna M RaskinDepartment of Bioengineering, University of California San Diego, CA 92093, USA.
Masahiko Hoshijima
Eric Swanson
Andrew D McCulloch
Jeffrey H Omens
University of California, San Diego · US

Funding

Vinculin and Talin in Cardiocyte Integrity and AdhesionP01HL046345 · NHLBI · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI KNOWLTON, KIRK U · 1992 to 2011
$25.0M
Training In Cardiovascular Physiology & PharmacologyT32HL007444 · NHLBI · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI Ju Chen, Robert Scott Ross · 1985 to 2026
$11.1M
TRANSMURAL DEFORMATIONR01HL032583 · NHLBI · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI OMENS, JEFFREY H. · 1985 to 2008
$2.8M
PKC-EHN-PKD signal complex in cardiac remodelingR01HL081401 · NHLBI · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI HOSHIJIMA, MASAHIKO · 2005 to 2009
$2.1M
NHLBI NIH HHS 5P01HL46345NHLBI NIH HHS HL32583NHLBI NIH HHS P01 HL046345NHLBI NIH HHS R01 HL032583NHLBI NIH HHS R01 HL081401NHLBI NIH HHS T32 HL007444
6 · The paper itself

Abstract

Altered mechanical stress and strain in cardiac myocytes induce modifications in gene expression that affects cardiac remodeling and myocyte contractile function. To study the mechanisms of mechanotransduction in cardiomyocytes, probing alterations in mechanics and gene expression has been an effective strategy. However, previous studies are self-limited due to the general use of isolated neonatal rodent myocytes or intact animals. The main goal of this study was to develop a novel tissue culture chamber system for mouse myocardium that facilitates loading of cardiac tissue, while measuring tissue stress and deformation within a physiological environment. Intact mouse right ventricular papillary muscles were cultured in controlled conditions with superfusate at 95% O2/ 5% CO2, and 34 degrees C, such that cell to extracellular matrix adhesions as well as cell to cell adhesions were undisturbed and both passive and active mechanical properties were maintained without significant changes. The system was able to measure the induction of hypertrophic markers (BNP, ANP) in tissue after 2 hrs and 5 hrs of stretch. ANP induction was highly correlated with the diastolic load of the muscle but not with developed systolic load. Load induced ANP expression was blunted in muscles from muscle-LIM protein knockout mice, in which defective mechanotransduction pathways have been predicted.

Indexed as

Gene Expression RegulationAnimalsAtrial Natriuretic FactorHypertrophyMaleMiceMice, Inbred C57BLMyocardial ContractionNatriuretic Peptide, BrainPapillary MusclesReverse Transcriptase Polymerase Chain ReactionStress, MechanicalTime FactorsTissue Culture TechniquesAtrial Natriuretic FactorNatriuretic Peptide, Brain

Identifiers

PMID19670825
PMCPMC3272304
OpenAlexW41179528

What OpenQuestion holds

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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.