Evidence map›Paper›PMID 29042425›Full record

ArticleJournal of the American Heart Association2017

Cardiovascular and Metabolic Consequences of Testosterone Supplements in Young and Old Male Spontaneously Hypertensive Rats: Implications for Testosterone Supplements in Men.

Carolina Dalmasso, Chetan N Patil, Licy L Yanes Cardozo, Damian G Romero, Rodrigo O Maranon

Open access · goldAbstract readComparative Study
In one paragraph

Article in Journal of the American Heart Association, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed
1.2field-weighted citation impact, top 19% 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

20 citing papers in PubMed, 33 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Effect of Pituitary-Target Gland Axis on RAAS in the Context of COVID-19.International journal of medical sciences · 2025
    Review
  5. Chronic intermittent hypoxia-induced hypertension: the impact of sex hormones.American journal of physiology. Regulatory, integrative and comparative physiology · 2024
    Review
  6. ProbioticsmSystems · 2023
    Article
  7. The role of sex and gender in hypertension.Journal of human hypertension · 2023
    Review
  8. Review
  9. Review
  10. Review
  11. Review
  12. Testosterone attenuates hypoxia-induced hypertension by affecting NRF1-mediated transcriptional regulation of ET-1 and ACE.Hypertension research : official journal of the Japanese Society of Hypertension · 2021
    Article
  13. Article
  14. Article
  15. Review
  16. Study on the Antihypertensive Mechanism ofEvidence-based complementary and alternative medicine : eCAM · 2019
    Article
  17. Article
  18. Review
  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

5 authors at 2 institutions in 1 country.

Carolina DalmassoDepartment of Biochemistry, University of Mississippi Medical Center, Jackson, MS.
Chetan N PatilDepartment of Biochemistry, University of Mississippi Medical Center, Jackson, MS.
Licy L Yanes CardozoDepartment of Biochemistry, University of Mississippi Medical Center, Jackson, MS.
Damian G RomeroDepartment of Biochemistry, University of Mississippi Medical Center, Jackson, MS.
Rodrigo O MaranonDepartment of Medicine, Divisions of Endocrinology/Nephrology, University of Mississippi Medical Center, Jackson, MS rmaranon@umc.edu.
Jackson Memorial Hospital · USUniversity of Mississippi Medical Center · US

Funding

Role of obesity in preeclamptic pregnancy.P20GM121334 · NIGMS · UNIVERSITY OF MISSISSIPPI MED CTR · PI Babbette LaMarca, Jane F Reckelhoff · 2017 to 2026
$26.4M
Role of microRNA_21 in acetaminophen-induced acute liver failureR21DK113500 · NIDDK · UNIVERSITY OF MISSISSIPPI MED CTR · PI ROMERO, DAMIAN G. · 2017 to 2019
$580k
NIDDK NIH HHS R21 DK113500NIGMS NIH HHS P20 GM121334
6 · The paper itself

Abstract

backgroundThe safety of testosterone supplements in men remains unclear. In the present study, we tested the hypothesis that in young and old male spontaneously hypertensive rats (SHR), long-term testosterone supplements increase blood pressure and that the mechanism is mediated in part by activation of the renin-angiotensin system. METHODS AND

resultsIn untreated males, serum testosterone exhibited a sustained decrease after 5 months of age, reaching a nadir by 18 to 22 months of age. The reductions in serum testosterone were accompanied by an increase in body weight until very old age (18 months). Testosterone supplements were given for 6 weeks to young (12 weeks-YMSHR) and old (21-22 months-OMSHR) male SHR that increased serum testosterone by 2-fold in young males and by 4-fold in old males. Testosterone supplements decreased body weight, fat mass, lean mass, and plasma leptin, and increased plasma estradiol in YMSHR but had no effect in OMSHR. Mean arterial pressure (MAP) was significantly higher in OMSHR than in YMSHR and testosterone supplements decreased MAP in OMSHR, but significantly increased MAP in YMSHR. Enalapril, the angiotensin-converting enzyme inhibitor, reduced MAP in both control and testosterone-supplemented YMSHR, but had a greater effect on MAP in testosterone-treated rats, suggesting the mechanism responsible for the increase in MAP in YMSHR is mediated at least in part by activation of the renin-angiotensin system.

conclusionsTaken together with previous studies, these data suggest that testosterone supplements may have differential effects on men depending on age, cardiovascular and metabolic status, and dose and whether given long-term or short-term.

Indexed as

AdiposityAge FactorsAgingAngiotensin-Converting Enzyme InhibitorsAnimalsAntihypertensive AgentsArterial PressureDisease Models, AnimalEnalaprilEstradiolHormone Replacement TherapyHumansHypertensionLeptinMaleRats, Inbred SHRAngiotensin-Converting Enzyme InhibitorsAntihypertensive AgentsEnalaprilEstradiolLeptinTestosteroneaginghypertensionleptintestosterone

Identifiers

PMID29042425
PMCPMC5721890
OpenAlexW2765773104

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.