Evidence map›Paper›PMID 18363833›Full record

ArticleJournal of cellular and molecular medicine2008

Myometrial mechanoadaptation during pregnancy: implications for smooth muscle plasticity and remodelling.

X Wu, K G Morgan, C J Jones, R M Tribe, M J Taggart

Open access · bronzeAbstract read
In one paragraph

Article in Journal of cellular and molecular medicine, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed, 1 pooled it
1.2field-weighted citation impact, top 23% 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

18 citing papers in PubMed, 1 synthesis or guideline pooled it, 35 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Article
  4. Review
  5. Filament evanescence of myosin II and smooth muscle function.The Journal of general physiology · 2021
    Review
  6. Review
  7. Review
  8. Article
  9. Article
  10. Fetal-to-maternal signaling in the timing of birth.The Journal of steroid biochemistry and molecular biology · 2017
    Review
  11. Article
  12. Article
  13. Article
  14. What do we know about what happens to myometrial function as women age?Journal of muscle research and cell motility · 2012
    Article
  15. Review
  16. Article
  17. Article
  18. Review
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

5 authors at 3 institutions in 3 countries.

X WuSchool of Clinical & Laboratory Sciences, University of Manchester, Great Britain.
K G Morgan
C J Jones
R M Tribe
M J Taggart
University of Manchester · GBBoston University · USUniversity of Newcastle Australia · AU

Funding

Structure-Function of the CytoskeletonP01HL086655 · NHLBI · BOSTON UNIVERSITY (CHARLES RIVER CAMPUS) · PI MORGAN, KATHLEEN G · 2007 to 2011
$8.8M
SIGNALING AND UTERINE CONTRACTILITY DURING PREGNANCYR01HD043054 · NICHD · BOSTON BIOMEDICAL RESEARCH INSTITUTE · PI MORGAN, KATHLEEN G · 2003 to 2007
$1.7M
MICROCIRCULATORY CONTROL: DYNAMIC ASPECTS OF VASCULARITYF32HL008003 · NHLBI · UNIVERSITY OF MISSISSIPPI MEDICAL CENTER · PI STRICK, DAVID M · 1988 to 1991
–
NHLBI NIH HHS HL8003NHLBI NIH HHS HL86655NHLBI NIH HHS P01 HL086655NICHD NIH HHS HD43054NICHD NIH HHS R01 HD043054Wellcome Trust
6 · The paper itself

Abstract

The smooth muscle of the uterus during pregnancy presents a unique circumstance of physiological mechanotransduction as the tissue remodels in response to stretches imposed by the growing foetus(es), yet the nature of the molecular and functional adaptations remain unresolved. We studied, in myometrium isolated from non-pregnant (NP) and pregnant mice, the active and passive length-tension curves by myography and the expression and activation by immunoblotting of focal adhesion-related proteins known in other systems to participate in mechanosensing and mechanotransduction. In situ uterine mass correlated with pup number and weight throughout pregnancy. In vitro myometrial active, and passive, length-tension curves shifted significantly to the right during pregnancy indicative of altered mechanosensitivity; at term, maximum active tension was generated following 3.94+/-0.33-fold stretch beyond slack length compared to 1.91+/-0.12-fold for NP mice. Moreover, mechanotransduction was altered during pregnancy as evidenced by the progressive increase in absolute force production at each optimal stretch. Pregnancy was concomitantly associated with an increased expression of the dense plaque-associated proteins FAK and paxillin, and elevated activation of FAK, paxillin, c-Src and extracellular signal-regulated kinase (ERK1/2) which reversed 1 day post-partum. Electron microscopy revealed close appositioning of neighbouring myometrial cells across a narrow extracellular cleft adjoining plasmalemmal dense plaques. Collectively, these results suggest a physiological basis of myometrial length adaptation, long known to be a property of many smooth muscles, whereupon plasmalemmal dense plaque proteins serve as molecular signalling and structural platforms contributing to functional (contractile) remodelling in response to chronic stretch.

Indexed as

Adaptation, PhysiologicalActinsAnimalsBiomechanical PhenomenaBody WeightEstrous CycleFemaleMiceModels, BiologicalMyometriumOrgan SizePregnancyPregnancy, AnimalPregnancy ProteinsUterusActinsPregnancy Proteins

Identifiers

PMID18363833
PMCPMC2729593
OpenAlexW2109485292

What OpenQuestion holds

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LicenceCC BY
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.