Evidence map›Paper›PMID 24316659›Full record

ArticleEnvironmental health perspectives2014

DNA methylation in oocytes and liver of female mice and their offspring: effects of high-fat-diet-induced obesity.

Zhao-Jia Ge, Shi-Ming Luo, Fei Lin, Qiu-Xia Liang, Lin Huang, Yan-Chang Wei, Yi Hou, Zhi-Ming Han, Heide Schatten, Qing-Yuan Sun

Erratum issuedOpen access · diamondAbstract read
In one paragraph

Article in Environmental health perspectives, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 79 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
79citing papers in PubMed, 1 pooled it
6.4field-weighted citation impact, top 3% 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

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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

79 citing papers in PubMed, 1 synthesis or guideline pooled it, 170 citations in OpenAlex.

  1. Pooled it
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  18. Genetics and epigenetics in the obesity phenotyping scenario.Reviews in endocrine & metabolic disorders · 2023
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19 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

  • Erratum issued
5 · Who and what money

Authors and funding

10 authors at 1 institution in 2 countries.

Zhao-Jia GeState Key Laboratory of Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, People's Republic of China.
Shi-Ming Luo
Fei Lin
Qiu-Xia Liang
Lin Huang
Yan-Chang Wei
Yi Hou
Zhi-Ming Han
Heide Schatten
Qing-Yuan Sun
Chinese Academy of Sciences · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundMaternal obesity has adverse effects on oocyte quality, embryo development, and the health of the offspring.

objectivesTo understand the underlying mechanisms responsible for the negative effects of maternal obesity, we investigated the DNA methylation status of several imprinted genes and metabolism-related genes.

methodsUsing a high-fat-diet (HFD)-induced mouse model of obesity, we analyzed the DNA methylation of several imprinted genes and metabolism-related genes in oocytes from control and obese dams and in oocytes and liver from their offspring. Analysis was performed using combined bisulfite restriction analysis (COBRA) and bisulfite sequencing.

resultsDNA methylation of imprinted genes in oocytes was not altered in either obese dams or their offspring; however, DNA methylation of metabolism-related genes was changed. In oocytes of obese mice, the DNA methylation level of the leptin (Lep) promoter was significantly increased and that of the Ppar-α promoter was reduced. Increased methylation of Lep and decreased methylation of Ppar-α was also observed in the liver of female offspring from dams fed the high-fat diet (OHFD). mRNA expression of Lep and Ppar-α was also significantly altered in the liver of these OHFD. In OHFD oocytes, the DNA methylation level of Ppar-α promoter was increased.

conclusionsOur results indicate that DNA methylation patterns of several metabolism-related genes are changed not only in oocytes of obese mice but also in oocytes and liver of their offspring. These data may contribute to the understanding of adverse effects of maternal obesity on reproduction and health of the offspring.

Indexed as

AnimalsBase SequenceDiet, High-FatDNA MethylationFemaleInheritance PatternsLiverMiceMolecular Sequence DataObesityOocytesPolymerase Chain ReactionReal-Time Polymerase Chain ReactionSequence Analysis, DNA

Identifiers

PMID24316659
PMCPMC3915265
OpenAlexW2102101616

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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.