Evidence map›Paper›PMID 21336586›Full record

ReviewPflugers Archiv : European journal of physiology2011

Regional variation in myofilament length-dependent activation.

Olivier Cazorla, Alain Lacampagne

Abstract readReview
PubMed Publisher
In one paragraph

Review in Pflugers Archiv : European journal of physiology, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing 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

21 citing papers in PubMed.

  1. Article
  2. Cardiac Sarcomere Signaling in Health and Disease.International journal of molecular sciences · 2022
    Review
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Voltage dependence of the CaMolecular and cellular biochemistry · 2018
    Article
  9. Article
  10. Article
  11. Review
  12. The cardiac muscle duplex as a method to study myocardial heterogeneity.Progress in biophysics and molecular biology · 2014
    Review
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Mechanobiology in cardiac physiology and diseases.Journal of cellular and molecular medicine · 2013
    Review
  19. Interpreting genetic effects through models of cardiac electromechanics.American journal of physiology. Heart and circulatory physiology · 2012
    Review
  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

2 authors.

Olivier CazorlaINSERM U-1046, Physiopathologie Cardiovasculaire, Université Montpellier1, Université Montpellier2, CHU Arnaud de Villeneuve, 34295, Montpellier, France. Olivier.cazorla@inserm.fr
Alain Lacampagne

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The Frank-Starling law is an important regulatory mechanism of the heart that links the end-diastolic volume with the systolic ejection fraction. This beat-to-beat regulation of the heart, underlined at the cellular level by higher myofilament calcium sensitivity at longer sarcomere length, is known as length-dependent activation or stretch sensitization of activation. However, the heart is structurally and functionally heterogeneous and asymmetrical. Specifically, contractile properties are not uniform within the left ventricle partly due to transmural differences in action potential waveforms and calcium homeostasis. The present review will focus on the role of the contractile machinery in the transmural contractile heterogeneity and its adaptation to changes in muscle strain. The expression of different myosin isoforms, the level of titin-based passive tension, and thin and thick sarcomeric regulatory proteins are considered to explain the regional cellular contractile properties. Finally, the importance of transmural heterogeneity of length-dependent activation and the consequences of its modification on the heart mechanics are discussed. Despite extensive research since the characterization of the Frank-Starling law, the molecular mechanisms by which strain information is transduced to the contractile machinery have not been fully determined yet.

Indexed as

Actin CytoskeletonActinsAnimalsCalciumMechanotransduction, CellularMyocardial ContractionMyocardiumMyosinsProtein IsoformsSarcomeresStress, MechanicalTroponin CActinsCalciumMyosinsProtein IsoformsTroponin C

Identifiers

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.