Evidence map›Paper›PMID 24855104›Full record

ArticleBiology of reproduction2014

Gestational exposure to elevated testosterone levels induces hypertension via heightened vascular angiotensin II type 1 receptor signaling in rats.

Vijayakumar Chinnathambi, Amar S More, Gary D Hankins, Chandra Yallampalli, Kunju Sathishkumar

Open access · bronzeAbstract read
In one paragraph

Article in Biology of reproduction, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed
1.7field-weighted citation impact, top 15% 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

22 citing papers in PubMed, 35 citations in OpenAlex.

  1. Review
  2. Reduced ATHypertension (Dallas, Tex. : 1979) · 2025
    Article
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  10. Sex differences in cardiovascular actions of the renin-angiotensin system.Clinical autonomic research : official journal of the Clinical Autonomic Research Society · 2020
    Review
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  19. Article
  20. Reactive oxygen species: players in the cardiovascular effects of testosterone.American journal of physiology. Regulatory, integrative and comparative physiology · 2016
    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

5 authors at 2 institutions in 1 country.

Vijayakumar ChinnathambiDivision of Reproductive Endocrinology, Department of Obstetrics and Gynecology, University of Texas Medical Branch, Galveston, Texas.
Amar S MoreDivision of Reproductive Endocrinology, Department of Obstetrics and Gynecology, University of Texas Medical Branch, Galveston, Texas.
Gary D HankinsDivision of Reproductive Endocrinology, Department of Obstetrics and Gynecology, University of Texas Medical Branch, Galveston, Texas.
Chandra YallampalliDepartment of Obstetrics and Gynecology, Baylor College of Medicine, Houston, Texas.
Kunju SathishkumarDivision of Reproductive Endocrinology, Department of Obstetrics and Gynecology, University of Texas Medical Branch, Galveston, Texas kusathis@utmb.edu.
The University of Texas Medical Branch at Galveston · USBaylor College of Medicine · US

Funding

SEX STEROID HORMONES AND CALCITONIN GENE RELATED PEPTIDER01HL058144 · NHLBI · UNIVERSITY OF TEXAS MEDICAL BR GALVESTON · PI CHAUHAN, MADHU LATA S., YALLAMPALLI, CHANDRASEKHAR · 1998 to 2022
$6.9M
Sex-specific fetal programming of adult vascular dysfunction and hypertensionR01HL119869 · NHLBI · UNIVERSITY OF WISCONSIN-MADISON · PI KUMAR, SATHISH · 2013 to 2017
$1.9M
Developmental programming: influence of sex steroids and mechanismsR01HL102866 · NHLBI · UNIVERSITY OF TEXAS MED BR GALVESTON · PI YALLAMPALLI, CHANDRASEKHAR · 2011 to 2014
$1.5M
Maternal Androgen Excess: Vascular and Placental Function and Fetal ConsequencesR03HD069750 · NICHD · UNIVERSITY OF TEXAS MED BR GALVESTON · PI KUMAR, SATHISH · 2011 to 2012
$153k
NHLBI NIH HHS HL102866NHLBI NIH HHS HL119869NHLBI NIH HHS HL58144NHLBI NIH HHS R01 HL058144NHLBI NIH HHS R01 HL102866NHLBI NIH HHS R01 HL119869NICHD NIH HHS HD069750NICHD NIH HHS R03 HD069750
6 · The paper itself

Abstract

Pre-eclampsia is a life-threatening pregnancy disorder whose pathogenesis remains unclear. Plasma testosterone levels are elevated in pregnant women with pre-eclampsia and polycystic ovary syndrome, who often develop gestational hypertension. We tested the hypothesis that increased gestational testosterone levels induce hypertension via heightened angiotensin II signaling. Pregnant Sprague-Dawley rats were injected with vehicle or testosterone propionate from Gestational Day 15 to 19 to induce a 2-fold increase in plasma testosterone levels, similar to levels observed in clinical conditions like pre-eclampsia. A subset of rats in these two groups was given losartan, an angiotensin II type 1 receptor antagonist by gavage during the course of testosterone exposure. Blood pressure levels were assessed through a carotid arterial catheter and endothelium-independent vascular reactivity through wire myography. Angiotensin II levels in plasma and angiotensin II type 1 receptor expression in mesenteric arteries were also examined. Blood pressure levels were significantly higher on Gestational Day 20 in testosterone-treated dams than in controls. Treatment with losartan during the course of testosterone exposure significantly attenuated testosterone-induced hypertension. Plasma angiotensin II levels were not significantly different between control and testosterone-treated rats; however, elevated testosterone levels significantly increased angiotensin II type 1 receptor protein levels in the mesenteric arteries. In testosterone-treated rats, mesenteric artery contractile responses to angiotensin II were significantly greater, whereas contractile responses to K(+) depolarization and phenylephrine were unaffected. The results demonstrate that elevated testosterone during gestation induces hypertension in pregnant rats via heightened angiotensin II type 1 receptor-mediated signaling, providing a molecular mechanism linking elevated maternal testosterone levels with gestational hypertension.

Indexed as

Angiotensin IIAnimalsBlood PressureDisease Models, AnimalFemaleHypertension, Pregnancy-InducedLosartanMesenteric ArteriesPregnancyRatsRats, Sprague-DawleyReceptor, Angiotensin, Type 1TestosteroneAngiotensin IILosartanReceptor, Angiotensin, Type 1TestosteroneAGTR1angiotensinblood pressurelosartanmesenteric arteriespre-eclampsiapregnancytestosteronevascular function

Identifiers

PMID24855104
PMCPMC4434963
OpenAlexW2160423145

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.