Evidence map›Paper›PMID 22176709›Full record

ArticleJournal of biomechanics2012

Intracellular Ca(2+) accumulation is strain-dependent and correlates with apoptosis in aortic valve fibroblasts.

Joshua D Hutcheson, Raghav Venkataraman, Franz J Baudenbacher, W David Merryman

Open access · greenAbstract read
In one paragraph

Article in Journal of biomechanics, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed
1.6field-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

20 citing papers in PubMed, 36 citations in OpenAlex.

  1. Review
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  5. Intensive stretch-activated CRT-PMCA1 feedback loop promoted apoptosis of myoblasts through CaApoptosis : an international journal on programmed cell death · 2022
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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 at 1 institution in 1 country.

Joshua D HutchesonDepartment of Biomedical Engineering, Vanderbilt University, Nashville, TN 37232-0493, United States.
Raghav Venkataraman
Franz J Baudenbacher
W David Merryman
Vanderbilt University · US

Funding

Tumor Immunology and Microenvironment Research ProgramP30CA068485 · NCI · VANDERBILT UNIVERSITY MEDICAL CENTER · PI MATTHEW J TYSKA · 1995 to 2026
$172.8M
Translational Analysis CoreP30DK058404 · NIDDK · VANDERBILT UNIVERSITY MEDICAL CENTER · PI RICHARD M. PEEK · 2002 to 2026
$29.9M
TGF-beta1 activity in the aortic valveK25HL094707 · NHLBI · VANDERBILT UNIVERSITY · PI MERRYMAN, WILLIAM D · 2009 to 2013
$725k
NCI NIH HHS P30 CA068485NCI NIH HHS P30CA68485NHLBI NIH HHS HL094707NHLBI NIH HHS K25 HL094707NIDDK NIH HHS DK058404NIDDK NIH HHS P30 DK058404
6 · The paper itself

Abstract

Aortic valve (AV) disease is often characterized by the formation of calcific nodules within AV leaflets that alter functional biomechanics. In vitro, formation of these nodules is associated with osteogenic differentiation and/or increased contraction and apoptosis of AV interstitial cells (AVICs), leading to growth of calcium phosphate crystal structures. In several other cell types, increased intracellular Ca(2+) has been shown to be an important part in activation of osteogenic differentiability. However, elevated intracellular Ca(2+) is known to mediate cell contraction, and has also been shown to lead to apoptosis in many cell types. Therefore, a rise in intracellular Ca(2+) may precede cellular changes that lead to calcification, and fibroblasts similar to AVICs have been shown to exhibit increases in intracellular Ca(2+) in response to mechanical strain. In this study, we hypothesized that strain induces intracellular Ca(2+) accumulation through stretch-activated calcium channels. We were also interested in assessing possible correlations between intracellular Ca(2+) increases and apoptosis in AVICs. To test our hypothesis, cultured porcine AVICs were used to assess correlates between strain, intracellular Ca(2+), and apoptosis. Ca(2+) sensitive fluorescent dyes were utilized to measure real-time intracellular Ca(2+) changes in strained AVICs. Ca(2+) changes were then correlated with AVIC apoptosis using flow cytometric Annexin V apoptosis assays. These data indicate that strain-dependent accumulation of intracellular Ca(2+) is correlated with apoptosis in AVICs. We believe that these findings indicate early mechanotransductive events that may initiate AV calcification pathways.

Indexed as

AnimalsAortic ValveApoptosisBiomechanical PhenomenaCalciumCalcium ChannelsCalcium PhosphatesCell DifferentiationCells, CulturedFibroblastsHeart Valve DiseasesMechanotransduction, CellularOsteogenesisStress, MechanicalSwineVascular CalcificationCalciumCalcium Channelscalcium phosphateCalcium Phosphates

Identifiers

PMID22176709
PMCPMC3293991
OpenAlexW2116592054

What OpenQuestion holds

Textmetadata
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.