Evidence map›Paper›PMID 25862792›Full record

ArticleJournal of the American Heart Association2015

Blood pressure, sex, and female sex hormones influence renal inner medullary nitric oxide synthase activity and expression in spontaneously hypertensive rats.

Jennifer M Sasser, Krystal N Brinson, Ashlee J Tipton, G Ryan Crislip, Jennifer C Sullivan

Open access · goldAbstract read
In one paragraph

Article in Journal of the American Heart Association, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
2.1field-weighted citation impact, top 13% 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

15 citing papers in PubMed, 20 citations in OpenAlex.

  1. Review
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  10. Oxidative stress induces BHBioscience reports · 2018
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  13. Sex differences in sympathetic vasoconstrictor responsiveness and sympatholysis.Journal of applied physiology (Bethesda, Md. : 1985) · 2017
    Article
  14. Article
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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 3 institutions in 1 country.

Jennifer M SasserDepartment of Pharmacology and Toxicology, University of Mississippi Medical Center, Jackson, MS (J.M.S.).
Krystal N BrinsonDepartment of Physiology, Georgia Regents University, Augusta, GA (K.N.B., A.J.T., R.C., J.C.S.).
Ashlee J TiptonDepartment of Physiology, Georgia Regents University, Augusta, GA (K.N.B., A.J.T., R.C., J.C.S.).
G Ryan CrislipDepartment of Physiology, Georgia Regents University, Augusta, GA (K.N.B., A.J.T., R.C., J.C.S.).
Jennifer C SullivanDepartment of Physiology, Georgia Regents University, Augusta, GA (K.N.B., A.J.T., R.C., J.C.S.).
Augusta University · USGeorgia Regents Medical Center · USUniversity of Mississippi Medical Center · US

Funding

Sexual dimorphisms of renin-angiotensin system in hypertension and renal injuryR01HL093271 · NHLBI · AUGUSTA UNIVERSITY · PI SULLIVAN, JENNIFER C · 2009 to 2013
$1.8M
Mechanisms of Renoprotection by Relaxin in HypertensionK01DK095018 · NIDDK · UNIVERSITY OF MISSISSIPPI MED CTR · PI SASSER, JENNIFER M · 2012 to 2016
$634k
NHLBI NIH HHS R01 HL093271NIDDK NIH HHS K01 DK095018
6 · The paper itself

Abstract

backgroundWe previously reported that sexually mature female spontaneously hypertensive rats (SHRs) have greater nitric oxide (NO) synthase (NOS) enzymatic activity in the renal inner medulla (IM), compared to age-matched males. However, the mechanisms responsible for this sexual dimorphism are unknown. The current study tested the hypothesis that sex differences in renal IM NOS activity and NOS1 expression in adult SHRs develop with sexual maturation and increases in blood pressure (BP) in a female sex hormone-dependent manner. METHODS AND

resultsRenal IM were isolated from sexually immature 5-week-old and sexually mature 13-week-old male and female SHRs. Whereas NOS activity and NOS1 expression were comparable in 5- and 13-week-old male SHRs and 5-week-old female SHRs, 13-week-old females had greater NOS activity and NOS1 expression, compared to 5-week-old female SHRs and age-matched males. NOS3 expression was greater in 5-week-old than 13-week-old SHRs regardless of sex. Treatment with antihypertensive therapy (hydrochlorothiazide and reserpine) from 6 to 12 weeks of age to attenuate age-related increases in BP abolished the sex difference in NOS activity and NOS1 expression between sexually mature SHR males and females. To assess the role of female sex hormones in age-related increases in NOS, additional females were ovariectomized (OVX), and NOS activity was studied 8 weeks post-OVX. OVX decreased NOS activity and NOS1 expression.

conclusionsThe sex difference in renal IM NOS in SHR is mediated by a sex hormone- and BP-dependent increase in NOS1 expression and NOS activity exclusively in females.

Indexed as

Age FactorsAnimalsAntihypertensive AgentsBlood PressureFemaleHydrochlorothiazideKidney MedullaMaleNitric Oxide SynthaseOvariectomyRatsRats, Inbred SHRReserpineSex FactorsSexual MaturationAntihypertensive AgentsHydrochlorothiazideNitric Oxide SynthaseReserpinehypertensionkidneyNOSovariectomysex difference

Identifiers

PMID25862792
PMCPMC4579936
OpenAlexW2328414724

What OpenQuestion holds

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LicenceCC BY-NC
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.