Evidence map›Paper›PMID 30108507›Full record

ArticleFrontiers in physiology2018

Vascular Smooth Muscle Contractile Function Declines With Age in Skeletal Muscle Feed Arteries.

John W Seawright, Harini Sreenivasappa, Holly C Gibbs, Samuel Padgham, Song Y Shin, Christine Chaponnier, Alvin T Yeh, Jerome P Trzeciakowski, Christopher R Woodman, Andreea Trache

Open access · goldAbstract read
In one paragraph

Article in Frontiers in physiology, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers.

0numbers the graph read from it
0cells of the map it votes in
29citing papers in PubMed
1.9field-weighted citation impact, top 16% 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

29 citing papers in PubMed, 42 citations in OpenAlex.

  1. Article
  2. Article
  3. Detection of Mesenchymal Stem Cell Aging Using an Integrin Mechano-Probe.Annals of the New York Academy of Sciences · 2026
    Article
  4. Article
  5. Article
  6. Review
  7. Article
  8. Aging and Altered Gravity: A Cellular Perspective.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2025
    Review
  9. Review
  10. Review
  11. Article
  12. Review
  13. CaInternational journal of molecular sciences · 2024
    Review
  14. Review
  15. Article
  16. Review
  17. Article
  18. Article
  19. Article
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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

10 authors at 3 institutions in 2 countries.

John W SeawrightDepartment of Health and Kinesiology, Texas A&M University, College Station, TX, United States.
Harini SreenivasappaDepartment of Medical Physiology, Texas A&M University Health Science Center, College Station, TX, United States.
Holly C GibbsDepartment of Biomedical Engineering, Texas A&M University, College Station, TX, United States.
Samuel PadghamDepartment of Medical Physiology, Texas A&M University Health Science Center, College Station, TX, United States.
Song Y ShinDepartment of Health and Kinesiology, Texas A&M University, College Station, TX, United States.
Christine ChaponnierDepartment of Pathology and Immunology, University of Geneva, Geneva, Switzerland.
Alvin T YehDepartment of Biomedical Engineering, Texas A&M University, College Station, TX, United States.
Jerome P TrzeciakowskiDepartment of Medical Physiology, Texas A&M University Health Science Center, College Station, TX, United States.
Christopher R WoodmanDepartment of Health and Kinesiology, Texas A&M University, College Station, TX, United States.
Andreea TracheDepartment of Medical Physiology, Texas A&M University Health Science Center, College Station, TX, United States.
Texas A&M University · USTexas A&M Health Science Center · USUniversity of Geneva · CH

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Aging induces a progressive decline in vasoconstrictor responses in central and peripheral arteries. This study investigated the hypothesis that vascular smooth muscle (VSM) contractile function declines with age in soleus muscle feed arteries (SFA). Contractile function of cannulated SFA isolated from young (4 months) and old (24 months) Fischer 344 rats was assessed by measuring constrictor responses of denuded (endothelium removed) SFA to norepinephrine (NE), phenylephrine (PE), and angiotensin II (Ang II). In addition, we investigated the role of RhoA signaling in modulation of VSM contractile function. Structural and functional characteristics of VSM cells were evaluated by fluorescence imaging and atomic force microscopy (AFM). Results indicated that constrictor responses to PE and Ang II were significantly impaired in old SFA, whereas constrictor responses to NE were preserved. In the presence of a Rho-kinase inhibitor (Y27632), constrictor responses to NE, Ang II, and PE were significantly reduced in young and old SFA. In addition, the age-group difference in constrictor responses to Ang II was eliminated. ROCK1 and ROCK2 content was similar in young and old VSM cells, whereas pROCK1 and pROCK2 were significantly elevated in old VSM cells. Aging was associated with a reduction in smooth muscle α-actin stress fibers and recruitment of proteins to cell-matrix adhesions. Old VSM cells presented an increase in integrin adhesion to the matrix and smooth muscle γ-actin fibers that was associated with increased cell stiffness. In conclusion, our results indicate that VSM contractile function declined with age in SFA. The decrement in contractile function was mediated in part by RhoA/ROCK signaling. Upregulation of pROCK in old VSM cells was not able to rescue contractility in old SFA. Collectively, these results indicate that changes at the VSM cell level play a central role in the reduced contractile function of aged SFA.

Indexed as

agingatomic force microscopyRho-kinasevascular smooth musclevasoconstriction

Identifiers

PMID30108507
PMCPMC6079263
OpenAlexW2807894297

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.