Evidence map›Paper›PMID 34597384›Full record

Trial reportThe Journal of clinical endocrinology and metabolism2022

Oxidative Stress and Inflammation Are Associated With Age-Related Endothelial Dysfunction in Men With Low Testosterone.

Matthew C Babcock, Lyndsey E DuBose, Teresa L Witten, Brian L Stauffer, Kerry L Hildreth, Robert S Schwartz, Wendy M Kohrt, Kerrie L Moreau

Open access · bronzeAbstract readRandomized Controlled Trial
In one paragraph

Trial report in The Journal of clinical endocrinology and metabolism, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 40 papers.

0numbers the graph read from it
0cells of the map it votes in
40citing papers in PubMed
5.9field-weighted citation impact, top 3% 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

40 citing papers in PubMed, 53 citations in OpenAlex.

  1. Trial
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  16. Endothelial dysfunction in middle-aged and older men with low testosterone is associated with elevated circulating endothelin-1.American journal of physiology. Regulatory, integrative and comparative physiology · 2025
    Article
  17. Article
  18. Article
  19. Review
  20. Epigenetic regulation of sex dimorphism in cardiovascular health.Canadian journal of physiology and pharmacology · 2024
    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

8 authors at 3 institutions in 1 country.

Matthew C BabcockDivision of Geriatric Medicine, School of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA.ORCID 0000-0002-8047-4411
Lyndsey E DuBoseDivision of Geriatric Medicine, School of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA.ORCID 0000-0002-3566-4531
Teresa L WittenDivision of Geriatric Medicine, School of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA.
Brian L StaufferDivision of Cardiology, School of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA.ORCID 0000-0003-3418-7750
Kerry L HildrethDivision of Geriatric Medicine, School of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA.ORCID 0000-0001-7463-7811
Robert S SchwartzDivision of Geriatric Medicine, School of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA.
Wendy M KohrtDivision of Geriatric Medicine, School of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA.
Kerrie L MoreauDivision of Geriatric Medicine, School of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA.ORCID 0000-0001-9298-047X
University of Colorado Anschutz Medical Campus · USGeriatric Research Education and Clinical Center · USDenver Health Medical Center · US

Funding

Colorado Clinical and Translational Sciences InstituteUL1TR001082 · NCATS · UNIVERSITY OF COLORADO DENVER · PI SOKOL, RONALD J. · 2013 to 2017
$48.0M
PILOT STUDY--SUBSTRATE METABOLISM IN EXTREMELY LOW BIRTH WEIGHT INFANTSP30DK048520 · NIDDK · UNIVERSITY OF COLORADO DENVER · PI JANINE A HIGGINS · 1995 to 2026
$32.6M
Suppression of ERalpha in Hematopoietic Stem Cell-Derived Adipocytes Increases Adiposity via Kynurenine and the Aryl Hydrocarbon ReceptorU54AG062319 · NIA · UNIVERSITY OF COLORADO DENVER · PI Wendy M Kohrt · 2018 to 2026
$13.5M
University of Colorado Aging Training GrantT32AG000279 · NIA · UNIVERSITY OF COLORADO DENVER · PI Kerrie Moreau · 2001 to 2026
$10.1M
Cardiovascular Consequences of Hypogonadism in Men SupplementR01AG049762 · NIA · UNIVERSITY OF COLORADO DENVER · PI MOREAU, KERRIE · 2016 to 2020
$3.3M
Ovarian Hormone Regulation of Central and Cerebrovascular HemodynamicsF32AG071273 · NIA · UNIVERSITY OF COLORADO DENVER · PI DUBOSE, LYNDSEY · 2021 to 2022
$122k
NCATS NIH HHS UL1 TR001082NIA NIH HHS F32 AG071273NIA NIH HHS R01 AG049762NIA NIH HHS T32 AG000279NIA NIH HHS U54 AG062319NIDDK NIH HHS P30 DK048520NIH HHS R01AG049762
6 · The paper itself

Abstract

contextVascular aging, including endothelial dysfunction secondary to oxidative stress and inflammation, increases the risk for age-associated cardiovascular disease (CVD). Low testosterone in middle-aged/older men is associated with increased CVD risk.

objectiveWe hypothesized that low testosterone contributes to age-associated endothelial dysfunction, related in part to greater oxidative stress and inflammation.

methodsThis cross-sectional study included 58 healthy, nonsmoking men categorized as young (N = 20; age 29 ± 4 years; testosterone 500 ± 58 ng/dL), middle-aged/older with higher testosterone (N = 20; age 60 ± 6 years; testosterone 512 ± 115 ng/dL), and middle-aged/older lower testosterone (N = 18; age 59 ± 8 years; testosterone 269 ± 48 ng/dL). Brachial artery flow-mediated dilation (FMDBA) was measured during acute infusion of saline (control) and vitamin C (antioxidant). Markers of oxidative stress (total antioxidant status and oxidized low-density lipoprotein cholesterol), inflammation (interleukin [IL]-6 and C-reactive protein [CRP]), and androgen deficiency symptoms were also examined.

resultsDuring saline, FMDBA was reduced in middle-aged/older compared with young, regardless of testosterone status (P < 0.001). FMDBA was reduced in middle-aged/older lower testosterone (3.7% ± 2.0%) compared with middle-aged/older higher testosterone (5.7% ± 2.2%; P = 0.021), independent of symptoms. Vitamin C increased FMDBA (to 5.3% ± 1.6%; P = 0.022) in middle-aged/older lower testosterone but had no effect in young (P = 0.992) or middle-aged/older higher testosterone (P = 0.250). FMDBA correlated with serum testosterone (r = 0.45; P < 0.001), IL-6 (r = -0.41; P = 0.002), and CRP (r = -0.28; P = 0.041).

conclusionHealthy middle-aged/older men with low testosterone appear to have greater age-associated endothelial dysfunction, related in part to greater oxidative stress and inflammation. These data suggest that low testosterone concentrations may contribute to accelerated vascular aging in men.

Indexed as

AdolescentAdultAgedAgingBlood Flow VelocityCardiovascular DiseasesCross-Sectional StudiesEndothelium, VascularHeart Disease Risk FactorsHumansMaleMiddle AgedOxidative StressPlethysmographyTestosteroneUltrasonography, DopplerTestosteroneagingandropauseendothelial functioninflammationoxidative stresstestosterone

Identifiers

PMID34597384
PMCPMC8764347
OpenAlexW3203310082

What OpenQuestion holds

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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.