Evidence map›Paper›PMID 22534333›Full record

ArticleReproductive sciences (Thousand Oaks, Calif.)2012

Protective effect of N-acetylcysteine on liver damage during chronic intrauterine hypoxia in fetal guinea pig.

Kazumasa Hashimoto, Gerard Pinkas, LaShauna Evans, Hongshan Liu, Yazan Al-Hasan, Loren P Thompson

Open access · bronzeAbstract read
In one paragraph

Article in Reproductive sciences (Thousand Oaks, Calif.), 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed, 1 pooled it
3.4field-weighted citation impact, top 8% 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

18 citing papers in PubMed, 1 synthesis or guideline pooled it, 25 citations in OpenAlex.

  1. Pooled it
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  12. Developmental origins of NAFLD: a womb with a clue.Nature reviews. Gastroenterology & hepatology · 2017
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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

6 authors at 1 institution in 1 country.

Kazumasa HashimotoDepartment of Obstetrics, Gynecology and Reproductive Sciences, University of Maryland, Baltimore, MD, USA.
Gerard Pinkas
LaShauna Evans
Hongshan Liu
Yazan Al-Hasan
Loren P Thompson
University of Maryland, Baltimore · US

Funding

FETAL HYPOXEMIA AND ENDOTHELIUM DERIVED NITRIC OXIDER01HL049999 · NHLBI · UNIVERSITY OF MARYLAND BALTIMORE · PI THOMPSON, LOREN P · 1998 to 2010
$2.6M
NHLBI NIH HHS R01 HL049999NHLBI NIH HHS R01HL 49999
6 · The paper itself

Abstract

Chronic exposure to hypoxia during pregnancy generates a stressed intrauterine environment that may lead to fetal organ damage. The objectives of the study are (1) to quantify the effect of chronic hypoxia in the generation of oxidative stress in fetal guinea pig liver and (2) to test the protective effect of antioxidant treatment in hypoxic fetal liver injury. Pregnant guinea pigs were exposed to either normoxia (NMX) or 10.5% O(2) (HPX, 14 days) prior to term (65 days) and orally administered N-acetylcysteine ([NAC] 10 days). Near-term anesthetized fetuses were excised and livers examined by histology and assayed for malondialdehyde (MDA) and DNA fragmentation. Chronic HPX increased erythroid precursors, MDA (NMX vs HPX; 1.26 ± 0.07 vs 1.78 ± 0.07 nmol/mg protein; P < .001, mean ± standard error of the mean [SEM]) and DNA fragmentation levels in fetal livers (0.069 ± 0.01 vs 0.11 ± 0.005 OD/mg protein; P < .01). N-acetylcysteine inhibited erythroid aggregation and reduced (P < .05) both MDA and DNA fragmentation of fetal HPX livers. Thus, chronic intrauterine hypoxia generates cell and nuclear damage in the fetal guinea pig liver. Maternal NAC inhibited the adverse effects of fetal liver damage suggestive of oxidative stress. The suppressive effect of maternal NAC may implicate the protective role of antioxidants in the prevention of liver injury in the hypoxic fetus.

Indexed as

AcetylcysteineAnimalsAntioxidantsFemaleFetal HypoxiaGuinea PigsLiver DiseasesOrgan SizeOxidative StressPregnancyProtective AgentsAcetylcysteineAntioxidantsProtective Agents

Identifiers

PMID22534333
PMCPMC4046312
OpenAlexW2023996541

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.