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Reproductive Biology and Endocrinology
Published in: Reproductive Biology and Endocrinology 1/2018

Open Access 01-12-2018 | Research

ART manipulation after controlled ovarian stimulation may not increase the risk of abnormal expression and DNA methylation at some CpG sites of H19,IGF2 and SNRPN in foetuses: a pilot study

Authors: Menglu Ji, Xingling Wang, Wenbin Wu, Yichun Guan, Jing Liu, Jingyan Wang, Wenxia Liu, Chunyan Shen

Published in: Reproductive Biology and Endocrinology | Issue 1/2018

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Abstract

Background

To examine the effects of IVF, ICSI and FET, as well as in vitro culture, on the safety of offspring, this study was conducted from the perspective of genetic imprinting to investigate whether assisted reproductive technology would influence the parental and maternal imprinting genes.

Methods

Eighteen foetuses were collected from multifoetal reduction and divided into 6 groups: multifoetal reduction after IVF fresh transferred D3 embryos (n = 3), multifoetal reduction after IVF frozen transferred D3 embryos (n = 3), multifoetal reduction after IVF frozen transferred D5 embryos (n = 3), multifoetal reduction after ICSI fresh transferred D3 embryos (n = 3), multifoetal reduction after ICSI frozen transferred D3 embryos (n = 3), and multifoetal reduction after controlled ovarian hyperstimulation (COH) (n = 3). The imprinted genes H19, IGF2 and SNRPN were selected for analysis. The expression and DNA methylation at some CpG sites of H19, IGF2, and SNRPN were examined using real-time quantitative polymerase chain reaction (PCR) and pyrosequencing.

Results

There were no significant differences in the mRNA expression levels among the groups. The mean percentage of H19 methylation (eight CpG sites), IGF2 methylation (five CpG sites) and SNRPN methylation (nine CpG sites) did not differ significantly.

Conclusions

The results suggest that ARTs after controlled ovarian stimulation (IVF, ICSI, cryopreservation and duration of in vitro culture) may not increase the risk of abnormal expression and DNA methylation at some CpG sites of H19, IGF2 and SNRPN in foetuses. Further study with strict design, expanded sample size and CpG sites is essential.
Appendix
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Metadata
Title
ART manipulation after controlled ovarian stimulation may not increase the risk of abnormal expression and DNA methylation at some CpG sites of H19,IGF2 and SNRPN in foetuses: a pilot study
Authors
Menglu Ji
Xingling Wang
Wenbin Wu
Yichun Guan
Jing Liu
Jingyan Wang
Wenxia Liu
Chunyan Shen
Publication date
01-12-2018
Publisher
BioMed Central
Published in
Reproductive Biology and Endocrinology / Issue 1/2018
Electronic ISSN: 1477-7827
DOI
https://doi.org/10.1186/s12958-018-0344-z

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