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Published in: Reproductive Biology and Endocrinology 1/2014

Open Access 01-12-2014 | Research

Maternal obesity and diabetes may cause DNA methylation alteration in the spermatozoa of offspring in mice

Authors: Zhao-Jia Ge, Qiu-Xia Liang, Yi Hou, Zhi-Ming Han, Heide Schatten, Qing-Yuan Sun, Cui-Lian Zhang

Published in: Reproductive Biology and Endocrinology | Issue 1/2014

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Abstract

Background

The adverse effects on offspring of diabetic and/or obese mothers can be passed to the next generation. However, the mechanisms behind this are still unclear. Epigenetics may play a key role during this process.

Methods

To confirm the hypothesis, we investigated the DNA methylation of several imprinted genes in spermatozoa of offspring from diabetic and/or obese mothers utilizing streptozotocin (STZ)- and high-fat-diet (HFD)-induced mouse models.

Results

We found that the DNA methylation of Peg3 was significantly increased in spermatozoa of offspring of obese mothers compared to that in spermatozoa of offspring of normal mothers. The DNA methylation of H19 was significantly higher in spermatozoa of offspring of diabetic mothers than that in spermatozoa of offspring of non-diabetic mothers.

Conclusions

These results indicate that pre-gestational diabetes and/or obesity can alter DNA methylation in offspring spermatozoa.
Appendix
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Metadata
Title
Maternal obesity and diabetes may cause DNA methylation alteration in the spermatozoa of offspring in mice
Authors
Zhao-Jia Ge
Qiu-Xia Liang
Yi Hou
Zhi-Ming Han
Heide Schatten
Qing-Yuan Sun
Cui-Lian Zhang
Publication date
01-12-2014
Publisher
BioMed Central
Published in
Reproductive Biology and Endocrinology / Issue 1/2014
Electronic ISSN: 1477-7827
DOI
https://doi.org/10.1186/1477-7827-12-29

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