Evidence map›Paper›PMID 18603318›Full record

ArticleInternational journal of cardiology2009

Reduction in alpha-adrenergic receptor-mediated vascular tone contributes to improved arterial compliance with endurance training.

Jun Sugawara, Hidehiko Komine, Koichiro Hayashi, Mutsuko Yoshizawa, Takeshi Otsuki, Nobutake Shimojo, Takashi Miyauchi, Takashi Yokoi, Seiji Maeda, Hirofumi Tanaka

Open access · greenAbstract readComparative Study
In one paragraph

Article in International journal of cardiology, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed, 3 pooled it
1.4field-weighted citation impact, top 18% 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

28 citing papers in PubMed, 3 syntheses or guidelines pooled it, 65 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. Trial
  5. Trial
  6. Trial
  7. Article
  8. Article
  9. Article
  10. Impact of acute mental stress on segmental arterial stiffness.European journal of applied physiology · 2020
    Article
  11. Article
  12. Review
  13. Article
  14. Article
  15. Article
  16. Article
  17. Arterial stiffness in young adult swimmers.European journal of applied physiology · 2017
    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

10 authors at 3 institutions in 2 countries.

Jun SugawaraInstitute for Human Science and Biomedical Engineering, National Institute of Advanced Industrial Science and Technology, Ibaraki, Japan. jun.sugawara@mail.utexas.edu
Hidehiko Komine
Koichiro Hayashi
Mutsuko Yoshizawa
Takeshi Otsuki
Nobutake Shimojo
Takashi Miyauchi
Takashi Yokoi
Seiji Maeda
Hirofumi Tanaka
National Institute of Advanced Industrial Science and Technology · JPUniversity of Tsukuba · JPThe University of Texas at Austin · US

Funding

Resistance Training &Age-Related Arterial StiffeningR01AG020966 · NIA · UNIVERSITY OF WISCONSIN MADISON · PI TANAKA, HIROFUMI · 2003 to 2007
$1.7M
NIA NIH HHS AG20966NIA NIH HHS R01 AG020966
6 · The paper itself

Abstract

backgroundRegular aerobic exercise improves large artery compliance in middle-aged and older humans. However, the underlying mechanisms are unknown. We tested the hypothesis that the improved central arterial compliance with endurance training is mediated by decreased alpha-adrenergic tone and/or increased endothelial function.

methodsSeven sedentary healthy adults (60+/-3 years) underwent systemic alpha-adrenergic blockade (phentolamine) and nitric oxide synthase (NOS) inhibition using N(G)-monomethyl-L-arginine in sequence before and after a 3-month moderate endurance training (walk/jog, 4-5 days/week). Phentolamine was given first to isolate the contribution of nitric oxide to arterial compliance by minimizing reflex suppression of sympathetic tone resulting from systemic NOS inhibition as well as to assess the alpha-adrenergic receptor-mediated modulation of arterial compliance.

resultsBaseline arterial compliance (via simultaneous ultrasound and applanation tonometry on the carotid artery) increased 34+/-12% after exercise training (P<0.01). When alpha-adrenergic blockade was performed, arterial compliance increased 37+/-6% (P<0.01) before the exercise training but did not change significantly after the training. Decreases in arterial compliance from the alpha-adrenergic blockade to the subsequent additional NOS blockade were not different before and after exercise training.

conclusionOur results suggest that the reduction in alpha-adrenergic receptor-mediated vascular tone contributes to the improved central arterial compliance with endurance training.

Indexed as

Adrenergic alpha-AntagonistsAgedCarotid ArteriesComplianceExerciseFemaleHumansMaleMiddle AgedPhysical EnduranceReceptors, Adrenergic, alphaVasoconstrictionVasodilationAdrenergic alpha-AntagonistsReceptors, Adrenergic, alpha

Identifiers

PMID18603318
PMCPMC2745711
OpenAlexW2038746519

What OpenQuestion holds

Textmetadata
LicenceTDM
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.