Evidence map›Paper›PMID 24581344›Full record

ArticleBMC cardiovascular disorders2014

Manipulation of valve composition to elucidate the role of collagen in aortic valve calcification.

Karien J Rodriguez, Laura M Piechura, Ana M Porras, Kristyn S Masters

Abstract read
In one paragraph

Article in BMC cardiovascular disorders, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 46 papers.

0numbers the graph read from it
0cells of the map it votes in
46citing 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

46 citing papers in PubMed.

  1. Article
  2. Nano-mechanical mapping of human and porcine abdominal aortic aneurysm.Journal of the mechanical behavior of biomedical materials · 2026
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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

4 authors.

Karien J Rodriguez
Laura M Piechura
Ana M Porras
Kristyn S MastersDepartment of Biomedical Engineering, University of Wisconsin-Madison, 1550 Engineering Drive, #2152, Madison, WI 53706, USA. kmasters@wisc.edu.

Funding

Training Program in Translational Cardiovascular Science (TPTCS)T32HL007936 · NHLBI · UNIVERSITY OF WISCONSIN-MADISON · PI Lee Lochbaum Eckhardt, Gail A Robertson · 2001 to 2026
$11.6M
Creating Engineered Models of Valvular Disease to Study Anti-Calcific TherapiesR01HL093281 · NHLBI · UNIVERSITY OF WISCONSIN-MADISON · PI MASTERS, KRISTYN S · 2009 to 2014
$1.6M
NHLBI NIH HHS R01 HL093281NHLBI NIH HHS T32 HL 007936-06
6 · The paper itself

Abstract

backgroundExtracellular matrix (ECM) disarray is found in calcific aortic valvular disease (CAVD), yet much remains to be learned about the role of individual ECM components in valvular interstitial cell (VIC) function and dysfunction. Previous clinical analyses have shown that calcification is associated with decreased collagen content, while previous in vitro work has suggested that the presence of collagen attenuates the responsiveness of VICs to pro-calcific stimuli. The current study uses whole leaflet cultures to examine the contributions of endogenous collagen in regulating the phenotype and calcification of VICs.

methodsA "top-down" approach was used to characterize changes in VIC phenotype in response to collagen alterations in the native 3D environment. Collagen-deficient leaflets were created via enzymatic treatment and cultured statically for six days in vitro. After culture, leaflets were harvested for analysis of DNA, proliferation, apoptosis, ECM composition, calcification, and gene/protein expression.

resultsIn general, disruption of collagen was associated with increased expression of disease markers by VICs in whole organ leaflet culture. Compared to intact control leaflets, collagen-deficient leaflets demonstrated increased VIC proliferation and apoptosis, increased expression of disease-related markers such as alpha-smooth muscle actin, alkaline phosphatase, and osteocalcin, and an increase in calcification as evidenced by positive von Kossa staining.

conclusionsThese results indicate that disruption of the endogenous collagen structure in aortic valves is sufficient to stimulate pathological consequences in valve leaflet cultures, thereby highlighting the importance of collagen and the valve extracellular matrix in general in maintaining homeostasis of the valve phenotype.

Indexed as

AnimalsAortic ValveApoptosisBiomarkersCalcinosisCell ProliferationCollagenDNA ReplicationGene Expression RegulationHeart Valve DiseasesPhenotypeSwineTime FactorsTissue Culture TechniquesBiomarkersCollagen

Identifiers

PMID24581344
PMCPMC3946110

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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.