Evidence map›Paper›PMID 26732298›Full record

ArticleScientific reports2016

Both diet and gene mutation induced obesity affect oocyte quality in mice.

Yan-Jun Hou, Cheng-Cheng Zhu, Xing Duan, Hong-Lin Liu, Qiang Wang, Shao-Chen Sun

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 74 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
74citing papers in PubMed, 1 pooled it
10.0field-weighted citation impact, top 2% 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

74 citing papers in PubMed, 1 synthesis or guideline pooled it, 137 citations in OpenAlex.

  1. Pooled it
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  17. Mitochondrial dysfunction in pregnancy loss: a review.Molecular and cellular biochemistry · 2025
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14 more citing papers are in PubMed but not listed here.

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 2 institutions in 1 country.

Yan-Jun HouCollege of Animal Science and Technology, Nanjing Agriculture University, Nanjing, 210095, China.
Cheng-Cheng ZhuCollege of Animal Science and Technology, Nanjing Agriculture University, Nanjing, 210095, China.
Xing DuanCollege of Animal Science and Technology, Nanjing Agriculture University, Nanjing, 210095, China.
Hong-Lin LiuCollege of Animal Science and Technology, Nanjing Agriculture University, Nanjing, 210095, China.
Qiang WangState Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing 210029, China.
Shao-Chen SunCollege of Animal Science and Technology, Nanjing Agriculture University, Nanjing, 210095, China.
Nanjing Agricultural University · CNNanjing Medical University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Obesity was shown to cause reproductive dysfunctions such as reduced conception, infertility and early pregnancy loss. However, the possible effects of obesity on oocyte quality are still not fully understood. In this study we investigated the effects of both diet and gene mutation induced obesity on impairments in mouse oocyte polarization, oxidative stress, and epigenetic modifications. Our results showed that high-fat diet induced obesity (HFD) and gene mutation induced obesity (ob/ob) could both impair oocyte meiotic maturation, disrupt spindle morphology, and reduce oocyte polarity. Oocytes from obese mice underwent oxidative stress, as shown by high DHE and ROS levels. Abnormal mitochondrial distributions and structures were observed in oocytes from obese groups of mice and early apoptosis signals were detected, which suggesting that oxidative stress had impaired mitochondrial function and resulted in oocyte apoptosis. Our results also showed that 5 mC levels and H3K9 and H3K27 methylation levels were altered in oocytes from obese mice, which indicated that DNA methylation and histone methylation had been affected. Our results showed that both HFD and ob/ob induced obesity affected oocyte maturation and that oxidative stress-induced early apoptosis and altered epigenetic modifications may be the reasons for reduced oocyte quality in obese mice.

Indexed as

DietMutationAnimalsApoptosisBody WeightCell DifferentiationDiet, High-FatDisease Models, AnimalDNA MethylationEpigenesis, GeneticFemaleMeiosisMiceMice, ObeseMitochondriaObesity

Identifiers

PMID26732298
PMCPMC4702149
OpenAlexW2228338492

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.