Evidence map›Paper›PMID 20798273›Full record

ArticleJournal of applied physiology (Bethesda, Md. : 1985)2010

P2X2/3 and P2X3 receptors contribute to the metaboreceptor component of the exercise pressor reflex.

Jennifer L McCord, Hirotsugu Tsuchimochi, Marc P Kaufman

Open access · greenAbstract read
In one paragraph

Article in Journal of applied physiology (Bethesda, Md. : 1985), 2010. 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 9% 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, 42 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Amplified P2XExperimental physiology · 2024
    Article
  6. Article
  7. Gene and protein expression of dorsal root ganglion sensory receptors in normotensive and hypertensive male rats.American journal of physiology. Regulatory, integrative and comparative physiology · 2022
    Article
  8. Review
  9. Review
  10. Intrathecal injection of brilliant blue G, a P2X7 antagonist, attenuates the exercise pressor reflex in rats.American journal of physiology. Regulatory, integrative and comparative physiology · 2020
    Article
  11. A dual role for peripheral GDNF signaling in nociception and cardiovascular reflexes in the mouse.Proceedings of the National Academy of Sciences of the United States of America · 2020
    Article
  12. Peripheral Mechanisms of Ischemic Myalgia.Frontiers in cellular neuroscience · 2017
    Review
  13. Muscle IL1β Drives Ischemic Myalgia via ASIC3-Mediated Sensory Neuron Sensitization.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2016
    Article
  14. Article
  15. Article
  16. Review
  17. Article
  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

3 authors at 1 institution in 1 country.

Jennifer L McCordPenn State Heart and Vascular Institute, Pennsylvania State University College of Medicine, Hershey, PA 17033, USA. jmccord@hmc.psu.edu
Hirotsugu Tsuchimochi
Marc P Kaufman
Penn State Milton S. Hershey Medical Center · US

Funding

METABOLITE EFFECTS ON GROUP III AND IV MUSCLE AFFERENTSR01HL030710 · NHLBI · UNIVERSITY OF TEXAS SW MED CTR/DALLAS · PI KAUFMAN, MARC PETER · 1986 to 2013
$4.5M
Differential sympathetic reflex control in exceriseR01AR051503 · NIAMS · UNIVERSITY OF CALIFORNIA DAVIS · PI KAUFMAN, MARC PETER · 2004 to 2009
$1.6M
EFFECTS OF EXERCISE ON AIRWAY SIZE AND MUSCLE AFFERENTSR23HL030710 · NHLBI · UNIVERSITY OF TEXAS SW MED CTR/DALLAS · PI KAUFMAN, MARC PETER · 1985 to 1985
–
NHLBI NIH HHS HL-30710NIAMS NIH HHS AR-051503
6 · The paper itself

Abstract

The exercise pressor reflex is due to activation of thin fiber afferents within contracting muscle. These afferents are in part stimulated by ATP activation of purinergic 2X (P2X) receptors during contraction. Which of the P2X receptors contribute to the reflex is unknown; however, P2X2/3 and P2X3 receptor subtypes are good candidates because they are located on thin fiber afferents and are involved in sensory neurotransmission. To determine if P2X2/3 and P2X3 receptors evoke the metabolic component of the exercise pressor reflex, we examined the effect of two P2X2/3 and P2X3 antagonists, A-317491 (10 mg/kg) and RO-3 (10 mg/kg), on the pressor response to injections of α,β-methylene ATP (α,β-MeATP; 50 μg/kg), freely perfused static contraction, contraction of the triceps surae muscles while the circulation was occluded, and postcontraction circulatory occlusion in decerebrate cats. We found that the antagonists reduced the pressor response to α,β-MeATP injection (before Δ 20 ± 3 mmHg; drug Δ 11 ± 3 mmHg; P < 0.05), suggesting the antagonists were effective in blocking P2X2/3 and P2X3 receptors. P2X2/3 and P2X3 receptor blockade reduced the pressor response to freely perfused contraction (before Δ 33 ± 5 mmHg; drug Δ 15 ± 5 mmHg; P < 0.05), contraction with the circulation occluded (before Δ 52 ± 7 mmHg; drug Δ 20 ± 4 mmHg; P < 0.05), and during postcontraction circulatory occlusion (before Δ 15 ± 1 mmHg; drug Δ 5 ± 1 mmHg; P < 0.05). Our findings suggest that P2X2/3 and P2X3 receptors contribute to the metabolic component of the exercise pressor reflex in decerebrate cats.

Indexed as

Blood PressureMuscle ContractionPhysical ExertionReflexAdenosine TriphosphateAnimalsCatsDecerebrate StateElectric StimulationFemaleMuscle, SkeletalNeurons, AfferentPhenolsPolycyclic CompoundsPurinergic P2X Receptor AntagonistsReceptors, Purinergic P2X2A-317491Adenosine Triphosphatealpha,beta-methyleneadenosine 5'-triphosphatePhenolsPolycyclic CompoundsPurinergic P2X Receptor AntagonistsReceptors, Purinergic P2X2Receptors, Purinergic P2X3

Identifiers

PMID20798273
PMCPMC2980379
OpenAlexW2101924880

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.