Effects of blastocyst artificial collapse prior to vitrification on hatching and survival rates and the expression of klf۴ gene in mouse embryos
Publish place: Veterinary Research Forum، Vol: 9، Issue: 1
Publish Year: 1397
نوع سند: مقاله ژورنالی
زبان: English
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JR_VRFAN-9-1_013
تاریخ نمایه سازی: 25 آبان 1402
Abstract:
Although the rate of blastocysts implantation of embryos is higher than previous stages but their survival rate is lower than them, which could be attributed to the completely filled blastocoel cavity with liquid and increased possibility of the formation of ice crystals. This liquid could prevent the penetration of cryoprotecting materials into the embryos. In this study, we reduced the volume of blastocoel before vitrification and compared survival rate and quality of in vitro embryos through klf۴ gene expression with control group. In vitro mouse blastocysts were divided into three groups. In group ۱, the blastocoel volume of blastocysts were reduced before vitrification and warming. In group ۲, blastocysts were just vitrified and warmed and the blastocysts of group ۳ (control group) were not undergone any specific treatment and were not vitrified. The expression ofklf۴ gene was assessed using real-time PCR technique. Data were statistically analyzed using one-way ANOVA and Duncan’s post hoc tests. Our results showed that blastocoel volume reduction before vitrification significantly increased the hatching rate of the blastocysts from the zona pellucida and klf۴ gene expression compared to vitrified group. Blastocoel volume reduction before vitrification could be used as an efficient method for improving the rate of in vitro fertilization.
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Authors
Farkhondeh Pooyanfar
Department of Animal Biology, Faculty of Biological Sciences, Kharazmi University, Tehran, Iran
Tahereh Foroutan
Department of Animal Biology, Faculty of Biological Sciences, Kharazmi University, Tehran, Iran
Mojtaba Dashtizad
Department of Animal Biotechnology, National Institute of Genetic Engineering and Biotechnology, Tehran, Iran
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