Evidence map›Paper›PMID 30610775›Full record

ArticleCroatian medical journal2018

In vitro effects of hydrogen peroxide on rat uterine contraction before and during pregnancy.

Rahmah Alanazi, Mohammed Alotaibi, Laiche Djouhri

Open access · diamondAbstract read
In one paragraph

Article in Croatian medical journal, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
0.3field-weighted citation impact, top 31% 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

2 citing papers in PubMed, 5 citations in OpenAlex.

  1. Status of Oxidative Stress during Low-Risk Labour: Preliminary Data.International journal of environmental research and public health · 2022
    Article
  2. 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

3 authors at 2 institutions in 2 countries.

Rahmah Alanazi
Mohammed AlotaibiMohammed Alotaibi, Department of Physiology, College of Medicine, King Saud University, P.O. Box 2925, Riyadh 11461, KSA, mfalotaibi@KSU.EDU.SA.
Laiche Djouhri
King Saud University · SAQatar University · QA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

aimTo assess the in vitro effect of hydrogen peroxide (H2O2) on uterine contractions in pregnant and non-pregnant rats.

methodsThe study was performed at the Department of Physiology, College of Medicine, King Saud University from December 2016 to October 2017. Intact uterine samples were obtained from non-pregnant (n=7-8) and term-pregnant (n=6-7) rats. Small longitudinal uterine strips were dissected and mounted in an organ bath. Isometric force measurements were used to assess the effect of 400, 800, and 1000 μM H2O2 on spontaneous uterine contractions and contractions induced by oxytocin (5 nM), high calcium (Ca+2) solution (6 mmol/L), and high potassium chloride (KCl) solution (60 mmol/L).

resultsIn both term-pregnant and non-pregnant uterine strips, H2O2 elicited a biphasic response, consisting of a transient contraction followed by a persistent decrease in spontaneously generated contractions, contractions induced by oxytocin, and contractions induced by high Ca+2 (all P<0.01, compared with controls) in a concentration-dependent manner. The effect of H2O2 was more pronounced in non-pregnant than in pregnant rats (P<0.05). In both groups, H2O2 failed to relax uterine strips pre-contracted with high-KCl solution (P>0.05 compared with controls).

conclusionH2O2 was shown to be a potent uterine relaxant in pregnant and non-pregnant states. The pregnant uterus better withstood the inhibitory effect of H2O2 than non-pregnant uterus.

Indexed as

AnimalsCalciumFemaleHydrogen PeroxideOxidantsOxytocicsOxytocinPotassium ChloridePregnancyRatsRats, WistarTissue Culture TechniquesUterine ContractionCalciumHydrogen PeroxideOxidantsOxytocicsOxytocinPotassium Chloride

Identifiers

PMID30610775
PMCPMC6330773
OpenAlexW2914739918

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.