Evidence map›Paper›PMID 25168874›Full record

ArticlePhysiological reports2014

Sex-specific alterations in NOS regulation of vascular function in aorta and mesenteric arteries from spontaneously hypertensive rats compared to Wistar Kyoto rats.

Analia S Loria, Krystal N Brinson, Brandon M Fox, Jennifer C Sullivan

Open access · goldAbstract read
In one paragraph

Article in Physiological reports, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
1.6field-weighted citation impact, top 17% 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

17 citing papers in PubMed, 33 citations in OpenAlex.

  1. Sex differences in TLR4 expression in SHR do not contribute to sex differences in blood pressure or the renal T cell profile.American journal of physiology. Regulatory, integrative and comparative physiology · 2022
    Trial
  2. Article
  3. Article
  4. Immune and Metabolic Mechanisms of Endothelial Dysfunction.International journal of molecular sciences · 2024
    Review
  5. Article
  6. Article
  7. Review
  8. Connecting Aortic Stiffness to Vascular Contraction: Does Sex Matter?International journal of molecular sciences · 2022
    Article
  9. Review
  10. Review
  11. Article
  12. Article
  13. Age-, Gender-, andFrontiers in physiology · 2018
    Article
  14. Vascular Kinin BFrontiers in physiology · 2017
    Article
  15. Endothelial function does not improve with high-intensity continuous exercise training in SHR: implications of eNOS uncoupling.Hypertension research : official journal of the Japanese Society of Hypertension · 2016
    Article
  16. Article
  17. 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

4 authors at 3 institutions in 1 country.

Analia S LoriaDepartment of Pharmacology and Nutritional Sciences, University of Kentucky, St. Lexington, Kentucky.
Krystal N BrinsonDepartment of Physiology, Georgia Regents University, Augusta, Georgia.
Brandon M FoxDepartment of Physiology, Georgia Regents University, Augusta, Georgia.
Jennifer C SullivanDepartment of Physiology, Georgia Regents University, Augusta, Georgia.
Augusta University · USGeorgia Regents Medical Center · USUniversity of Kentucky · 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
Early Life Stress & Chronic Control of Blood PressureR00HL111354 · NHLBI · UNIVERSITY OF KENTUCKY · PI LORIA, ANALIA · 2013 to 2015
$730k
Early Life Stress & Chronic Control of Blood PressureK99HL111354 · NHLBI · AUGUSTA UNIVERSITY · PI LORIA, ANALIA · 2012 to 2013
$181k
NHLBI NIH HHS K99 HL111354NHLBI NIH HHS R00 HL111354NHLBI NIH HHS R01 HL093271
6 · The paper itself

Abstract

The present study tested the hypothesis that spontaneously hypertensive rats (SHR) have impaired nitric oxide synthase (NOS)-mediated regulation of vascular function versus Wistar-Kyoto rats (WKY). Aorta and small mesenteric arteries were studied from male and female SHR (M SHR and F SHR) and WKY (M WKY and F WKY). Phenylephrine (PE)-induced vasoconstriction was greater in aorta of M SHR versus all others (P < 0.05); there were neither sex nor strain differences in PE contraction in mesenteric arteries. The NOS inhibitor l-Nitro-Arginine Methyl Ester (l-NAME) increased PE-induced vasoconstriction in all rats, although the increase was the least in male SHR (P < 0.05), revealing a blunted vasoconstrictor buffering capacity of NOS. l-NAME increased sensitivity to PE-induced constriction only in mesenteric arteries of SHR, although, the maximal percent increase in contraction was comparable among groups. ACh-induced relaxation was also less in aorta from M SHR versus all others (P < 0.05). ACh relaxation was comparable among groups in mesenteric arteries, although SHR exhibited a greater NOS component to ACh-induced relaxation than WKY. To gain mechanistic insight into sex and strain differences in vascular function, NOS activity and NOS3 protein expression were measured. Aortic NOS activity was comparable between groups and M SHR had greater NOS3 expression than M WKY. In contrast, although vascular function was largely maintained in mesenteric arteries of SHR, NOS activity was less in SHR versus WKY. In conclusion, M SHR exhibit a decrease in NOS regulation of vascular function compared to F SHR and WKY, although this is not mediated by decreases in NOS activity and/or expression.

Indexed as

NOS activityNOS expressionphenylephrineSHR

Identifiers

PMID25168874
PMCPMC4246578
OpenAlexW2115785051

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.