Birth weight and frozen embryo transfer: State of the art

The aim of this study was to update our acknowledgment if there is a link between assisted embryo cryopreservation and epigenetics in human? Animal studies have demonstrated epigenetics consequence and especially imprinting disorders due to in vitro culture. In human, it is important to note that af...

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Published in:Gynécologie, obstétrique, fertilité & sénologie obstétrique, fertilité & sénologie, 2018-05, Vol.46 (5), p.489-496
Main Authors: Anav, M, Ferrières-Hoa, A, Gala, A, Fournier, A, Zaragoza, S, Vintejoux, E, Vincens, C, Hamamah, S
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container_issue 5
container_start_page 489
container_title Gynécologie, obstétrique, fertilité & sénologie
container_volume 46
creator Anav, M
Ferrières-Hoa, A
Gala, A
Fournier, A
Zaragoza, S
Vintejoux, E
Vincens, C
Hamamah, S
description The aim of this study was to update our acknowledgment if there is a link between assisted embryo cryopreservation and epigenetics in human? Animal studies have demonstrated epigenetics consequence and especially imprinting disorders due to in vitro culture. In human, it is important to note that after frozen embryo transfer birth weight is significantly increased by 81 to 250g. But these studies cannot identify the reasons of such difference. This review strongly suggests that embryo cryopreservation is responsible for birth weight variations but mechanisms not yet elucidated. Epigenetics is probably one of these but to date, none study is able to prove it. We have to be attentive on a possible link between assisted reproductive technology (ART) and epigenetics reprogrammation.
doi_str_mv 10.1016/j.gofs.2018.03.012
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title Birth weight and frozen embryo transfer: State of the art
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