Evidence map›Paper›PMID 22021327›Full record

ReviewAmerican journal of physiology. Heart and circulatory physiology2012

The interaction of Ca2+ with sarcomeric proteins: role in function and dysfunction of the heart.

Hendrick E D J ter Keurs

Open access · greenAbstract readReview
In one paragraph

Review in American journal of physiology. Heart and circulatory physiology, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers.

0numbers the graph read from it
0cells of the map it votes in
32citing papers in PubMed
4.7field-weighted citation impact, top 5% 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

32 citing papers in PubMed, 61 citations in OpenAlex.

  1. Article
  2. The Mechanism of Modulation of Cardiac Force by Temperature.International journal of molecular sciences · 2025
    Article
  3. An integrated picture of the structural pathways controlling the heart performance.Proceedings of the National Academy of Sciences of the United States of America · 2024
    Article
  4. Article
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  7. Article
  8. Mitochondrial mechanosensor in cardiovascular diseases.Vascular biology (Bristol, England) · 2020
    Review
  9. Article
  10. Article
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  18. Myosin filament activation in the heart is tuned to the mechanical task.Proceedings of the National Academy of Sciences of the United States of America · 2017
    Article
  19. Article
  20. 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

1 author at 1 institution in 1 country.

Hendrick E D J ter KeursDepartment of Physiology/Biophysics, University of Calgary, Alberta, Canada. terkeurs@ucalgary.ca
University of Calgary · CA

Funding

Ion Channel Function in Arrhythmogenic Cardiac CellsR01HL066140 · NHLBI · COLUMBIA UNIVERSITY HEALTH SCIENCES · PI BOYDEN, PENELOPE ALTMAN · 2001 to 2010
$3.7M
CALCIUM WAVES AND ARRHYTHMIASR01HL058860 · NHLBI · COLUMBIA UNIVERSITY HEALTH SCIENCES · PI BOYDEN, PENELOPE ALTMAN · 1998 to 2008
$2.9M
Canadian Institutes of Health ResearchNHLBI NIH HHS HL-58860-O6A2NHLBI NIH HHS HL-66140
6 · The paper itself

Abstract

The hallmarks of the normal heartbeat are both rapid onset of contraction and rapid relaxation as well as an inotropic response to both increased end-diastolic volume and increased heart rate. At the microscopic level, Ca(2+) plays a crucial role in normal cardiac contraction. This paper reviews the cycle of Ca(2+) fluxes during the normal heartbeat, which underlie the coupling between excitation and contraction and permit a highly synchronized action of cardiac sarcomeres. Length dependence of the response of the regulatory sarcomeric proteins mediates the Frank-Starling Law of the heart. However, Ca(2+) transport may go astray in heart disease such as in congestive heart failure, and both jeopardize systole and diastole and triggering arrhythmias. The interaction between weak and strong segments in nonuniform cardiac muscle allows partial preservation of force of contraction but may further lead to mechanoelectric feedback or reverse excitation-contraction coupling mediating an early diastolic Ca(2+) transient caused by the rapid force decrease during the relaxation phase. These rapid force changes in nonuniform muscle may cause arrhythmogenic Ca(2+) waves to propagate by the activation of neighboring sarcoplasmic reticulum by diffusing Ca(2+) ions.

Indexed as

Excitation Contraction CouplingMyocardial ContractionAnimalsCalciumHeart DiseasesHeart RateHumansMuscle ProteinsMyocardiumSarcomeresCalciumMuscle Proteins

Identifiers

PMID22021327
PMCPMC3334233
OpenAlexW2123066021

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.