Evidence map›Paper›PMID 20431295›Full record

ArticleJournal of vascular research2010

Effects of pregnancy, hypertension and nitric oxide inhibition on rat uterine artery myogenic reactivity.

Carolyn Barron, Maurizio Mandala, George Osol

Open access · bronzeAbstract read
In one paragraph

Article in Journal of vascular research, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
1.4field-weighted citation impact, top 18% 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

13 citing papers in PubMed, 26 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Evidence of Nitric Oxide Impairment During Hypertensive Pregnancies.Advances in experimental medicine and biology · 2023
    Review
  5. Article
  6. Review
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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

3 authors at 2 institutions in 2 countries.

Carolyn BarronDepartment of Obstetrics, Gynecology, and Reproductive Sciences, University of Vermont College of Medicine, Burlington, VT 05405, USA.
Maurizio Mandala
George Osol
University of Vermont · USUniversity of Calabria · IT

Funding

Resistance Artery Adaptation in Hypertensive PregnancyR01HL073895 · NHLBI · UNIVERSITY OF VERMONT &ST AGRIC COLLEGE · PI OSOL, GEORGE J · 2005 to 2009
$1.7M
NHLBI NIH HHS HL073895NHLBI NIH HHS R01 HL073895
6 · The paper itself

Abstract

BACKGROUND/

aimsThe purpose of this study was to examine the effects of hypertension and nitric oxide (NO) inhibition on myogenic tone in uterine arteries during pregnancy.

methodsPremyometrial radial uterine arteries from nonpregnant and late pregnant Sprague-Dawley rats were evaluated for myogenic reactivity from the following groups: control, hypertensive/NO-inhibited (L-NAME treatment) and normotensive/NO-inhibited (L-NAME plus hydralazine).

resultsIn both nonpregnant and pregnant animals, L-NAME treatment significantly elevated blood pressures, while the addition of hydralazine made the animals normotensive. In nonpregnant animals, little myogenic tone was seen in controls; tone increased significantly in the L-NAME group, and was attenuated in those treated with L-NAME plus hydralazine. In pregnant animals, controls developed significant tone; this was reduced in the L-NAME group, and returned to control levels in the L-NAME plus hydralazine group.

conclusionsDimensional measurements showed that arteries from the pregnant hypertensive group did not undergo expansive remodeling, suggesting that tone development is related to phenotypic alterations in vascular smooth muscle and/or altered physical forces secondary to adaptive changes in arterial diameter. These differences implicate pregnancy-specific pathways in the development and inhibition of myogenic tone, and point to potentially opposing roles of NO and hypertension.

Indexed as

AnimalsBlood PressureDisease Models, AnimalEnzyme InhibitorsFemaleHydralazineHypertensionHypertension, Pregnancy-InducedNG-Nitroarginine Methyl EsterNitric OxideNitric Oxide SynthasePregnancyRatsRats, Sprague-DawleyTime FactorsUterine ArteryEnzyme InhibitorsHydralazineNG-Nitroarginine Methyl EsterNitric OxideNitric Oxide SynthaseVasodilator Agents

Identifiers

PMID20431295
PMCPMC2945269
OpenAlexW2011705019

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.