Evidence map›Paper›PMID 23420820›Full record

ArticleReproductive sciences (Thousand Oaks, Calif.)2013

Effect of pregnancy and nitric oxide on the myogenic vasodilation of posterior cerebral arteries and the lower limit of cerebral blood flow autoregulation.

Abbie C Chapman, Marilyn J Cipolla, Siu-Lung Chan

Open access · bronzeAbstract read
In one paragraph

Article in Reproductive sciences (Thousand Oaks, Calif.), 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed, 1 pooled it
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

11 citing papers in PubMed, 1 synthesis or guideline pooled it, 24 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Article
  4. Observational
  5. Traumatic brain injury in obstetric patients: challenges and management strategiesRevista colombiana de obstetricia y ginecologia · 2025
    Review
  6. Article
  7. Article
  8. Review
  9. Review
  10. Article
  11. 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

3 authors at 1 institution in 1 country.

Abbie C ChapmanNeuroscience Graduate Program, University of Vermont College of Medicine, Burlington, VT 05405, USA.
Marilyn J Cipolla
Siu-Lung Chan
University of Vermont · US

Funding

Impact of SAH on Parenchymal Arterioles and Neurovascular CouplingP01HL095488 · NHLBI · UNIVERSITY OF VERMONT & ST AGRIC COLLEGE · PI BONEV, ADRIAN · 2010 to 2014
$11.4M
The Role of the Blood Brain Barrier in Seizure During Pregnancy and PreeclampsiaR01NS045940 · NINDS · UNIVERSITY OF VERMONT &ST AGRIC COLLEGE · PI CIPOLLA, MARILYN J · 2003 to 2018
$4.6M
NHLBI NIH HHS P01 HL095488NINDS NIH HHS R01 NS045940NINDS NIH HHS R01 NS045940-06S1
6 · The paper itself

Abstract

Hemorrhage during parturition can lower blood pressure beyond the lower limit of cerebral blood flow (CBF) autoregulation that can cause ischemic brain injury. However, the impact of pregnancy on the lower limit of CBF autoregulation is unknown. We measured myogenic vasodilation, a major contributor of CBF autoregulation, in isolated posterior cerebral arteries (PCAs) from nonpregnant and late-pregnant rats (n = 10/group) while the effect of pregnancy on the lower limit of CBF autoregulation was studied in the posterior cerebral cortex during controlled hemorrhage (n = 8). Pregnancy enhanced myogenic vasodilation in PCA and shifted the lower limit of CBF autoregulation to lower pressures. Inhibition of nitric oxide synthase (NOS) prevented the enhanced myogenic vasodilation during pregnancy but did not affect the lower limit of CBF autoregulation. The shift in the autoregulatory curve to lower pressures during pregnancy is likely protective of ischemic injury during hemorrhage and appears to be independent of NOS.

Indexed as

Cerebrovascular CirculationVasodilationAnimalsArterial PressureBrain IschemiaDisease Models, AnimalEnzyme InhibitorsFemaleHemorrhageHomeostasisHypotensionMuscle, Smooth, VascularNitric OxideNitric Oxide SynthasePosterior Cerebral ArteryPregnancyEnzyme InhibitorsNitric OxideNitric Oxide SynthaseCBF autoregulationhypotensionmyogenic vasodilationnitric oxidepregnancy

Identifiers

PMID23420820
PMCPMC3745710
OpenAlexW2014682221

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.