Evidence map›Paper›PMID 26921442›Full record

ArticleAmerican journal of physiology. Heart and circulatory physiology2016

The mechano-gated channel inhibitor GsMTx4 reduces the exercise pressor reflex in rats with ligated femoral arteries.

Steven W Copp, Joyce S Kim, Victor Ruiz-Velasco, Marc P Kaufman

Open access · bronzeAbstract readComparative Study
In one paragraph

Article in American journal of physiology. Heart and circulatory physiology, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed
2.7field-weighted citation impact, top 10% 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

25 citing papers in PubMed, 39 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Sex-dependent attenuating effects of capsaicin administration on the mechanoreflex in healthy rats.American journal of physiology. Heart and circulatory physiology · 2023
    Article
  6. Article
  7. The role of PIEZO ion channels in the musculoskeletal system.American journal of physiology. Cell physiology · 2023
    Review
  8. Bradykinin 2 receptors contribute to the exaggerated exercise pressor reflex in a rat model of simulated peripheral artery disease.American journal of physiology. Regulatory, integrative and comparative physiology · 2023
    Article
  9. The exercise pressor reflex: An update.Clinical autonomic research : official journal of the Clinical Autonomic Research Society · 2022
    Review
  10. Mechanosignals in abdominal aortic aneurysms.Frontiers in cardiovascular medicine · 2022
    Review
  11. Article
  12. Article
  13. No effect of endoperoxide 4 or thromboxane AExperimental physiology · 2020
    Article
  14. Review
  15. Thromboxane AAmerican journal of physiology. Heart and circulatory physiology · 2020
    Article
  16. Article
  17. Review
  18. 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

4 authors at 1 institution in 1 country.

Steven W CoppHeart and Vascular Institute, Penn State College of Medicine, Hershey, Pennsylvania; and.
Joyce S KimHeart and Vascular Institute, Penn State College of Medicine, Hershey, Pennsylvania; and.
Victor Ruiz-VelascoDepartment of Anesthesiology, Penn State College of Medicine, Hershey, Pennsylvania.
Marc P KaufmanHeart and Vascular Institute, Penn State College of Medicine, Hershey, Pennsylvania; and mkaufman@hmc.psu.edu.
Penn State Milton S. Hershey Medical Center · US

Funding

Excitability of Afferents Evoking the Exercise Pressor ReflexR01AR059397 · NIAMS · PENNSYLVANIA STATE UNIV HERSHEY MED CTR · PI ELMSLIE, KEITH S, KAUFMAN, MARC PETER · 2010 to 2019
$5.4M
NIAMS NIH HHS R01 AR059397
6 · The paper itself

Abstract

Mechanical and metabolic stimuli arising from contracting muscles evoke the exercise pressor reflex. This reflex is greater in a rat model of simulated peripheral arterial disease in which a femoral artery is chronically ligated than it is in rats with freely perfused femoral arteries. The role played by the mechanically sensitive component of the exaggerated exercise pressor reflex in ligated rats is unknown. We tested the hypothesis that the mechano-gated channel inhibitor GsMTx4, a relatively selective inhibitor of mechano-gated Piezo channels, reduces the exercise pressor reflex in decerebrate rats with ligated femoral arteries. Injection of 10 μg of GsMTx4 into the arterial supply of the hindlimb reduced the pressor response to Achilles tendon stretch (a purely mechanical stimulus) but had no effect on the pressor responses to intra-arterial injection of α,β-methylene ATP or lactic acid (purely metabolic stimuli). Moreover, injection of 10 μg of GsMTx4 into the arterial supply of the hindlimb reduced both the integrated pressor area (control 535 ± 21, GsMTx4 218 ± 24 mmHg·s; P < 0.01), peak pressor (control 29 ± 2, GsMTx4 14 ± 3 mmHg; P < 0.01), and renal sympathetic nerve responses to electrically induced intermittent hindlimb muscle contraction (a mixed mechanical and metabolic stimulus). The reduction of the integrated pressor area during contraction caused by GsMTx4 was greater in rats with ligated femoral arteries than it was in rats with freely perfused femoral arteries. We conclude that the mechanically sensitive component of the reflex contributes to the exaggerated exercise pressor reflex during intermittent hindlimb muscle contractions in rats with ligated femoral arteries.

Indexed as

Muscle ContractionAchilles TendonAnimalsChemoreceptor CellsDecerebrate StateDisease Models, AnimalElectric StimulationFemoral ArteryHindlimbInjections, Intra-ArterialIntercellular Signaling Peptides and ProteinsIon ChannelsLigationMaleMechanotransduction, CellularMembrane Transport ModulatorsIntercellular Signaling Peptides and ProteinsIon ChannelsMembrane Transport ModulatorsMTx4 protein, Grammostola spatulataPeptidesSpider VenomsmechanoreceptorsPiezo channelssympathetic nerve activitythin-fiber muscle afferents

Identifiers

PMID26921442
PMCPMC4867390
OpenAlexW2300486354

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.