Evidence map›Paper›PMID 25421125›Full record

ReviewJournal of muscle research and cell motility2015

Non-crossbridge forces in activated striated muscles: a titin dependent mechanism of regulation?

Dilson E Rassier, Felipe S Leite, Marta Nocella, Anabelle S Cornachione, Barbara Colombini, Maria Angela Bagni

Abstract readReview
PubMed Publisher
In one paragraph

Review in Journal of muscle research and cell motility, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed, 1 pooled it
3.6field-weighted citation impact, top 6% 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

14 citing papers in PubMed, 1 synthesis or guideline pooled it, 39 citations in OpenAlex.

  1. Pooled it
  2. Eccentric muscle contractions: from single muscle fibre to whole muscle mechanics.Pflugers Archiv : European journal of physiology · 2023
    Review
  3. Muscle thixotropy-where are we now?Journal of applied physiology (Bethesda, Md. : 1985) · 2019
    Review
  4. Article
  5. Article
  6. Article
  7. Review
  8. Article
  9. Review
  10. Article
  11. Article
  12. Effects of aging, exercise, and disease on force transfer in skeletal muscle.American journal of physiology. Endocrinology and metabolism · 2015
    Review
  13. Editorial on EMC 2014 special issue.Journal of muscle research and cell motility · 2015
    Article
  14. 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

6 authors at 3 institutions in 3 countries.

Dilson E RassierDepartment of Kinesiology and Physical Education, McGill University, Montreal, Canada, Dilson.rassier@mcgill.ca.
Felipe S Leite
Marta Nocella
Anabelle S Cornachione
Barbara Colombini
Maria Angela Bagni
University of Florence · ITMcGill University · CAUniversidade de São Paulo · BR

Funding

Canadian Institutes of Health Research
6 · The paper itself

Abstract

When skeletal muscles are stretched during activation in the absence of myosin-actin interactions, the force increases significantly. The force remains elevated throughout the activation period. The mechanism behind this non-crossbridge force, referred to as static tension, is unknown and generates debate in the literature. It has been suggested that the static tension is caused by Ca(2+)-induced changes in the properties of titin molecules that happens during activation and stretch, but a comprehensive evaluation of such possibility is still lacking. This paper reviews the general characteristics of the static tension, and evaluates the proposed mechanism by which titin may change the force upon stretch. Evidence is presented suggesting that an increase in intracellular Ca(2+) concentration leads to Ca(2+) binding to the PEVK region of titin. Such binding increases titin stiffness, which increases the overall sarcomere stiffness and causes the static tension. If this form of Ca(2+)-induced increase in titin stiffness is confirmed in future studies, it may have large implications for understating of the basic mechanisms of muscle contraction.

Indexed as

AnimalsCalciumConnectinHumansMuscle, SkeletalMuscle StrengthCalciumConnectinTTN protein, human

Identifiers

PMID25421125
OpenAlexW2054115614

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.