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Static magnetic field halves cryoinjuries of vitrified mouse COCs, improves their functions and modulates pluripotency of derived blastocysts

This study was performed with the aim of evaluating the influence of static magnetic field (SMF) of 60 mT on mouse Cumulus Oocytes Complexes (COCs) vitrification. The COCs were vitrified in the presence (Vit_SMF+) and absence of SMF (Vit_SMF−). Along with these groups, non-vitrified or fresh COCS, w...

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Bibliographic Details
Published in:Theriogenology 2021-03, Vol.163, p.31-42
Main Authors: Baniasadi, F., Hajiaghalou, S., Shahverdi, A., Pirhajati, V., Fathi, R.
Format: Article
Language:English
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Summary:This study was performed with the aim of evaluating the influence of static magnetic field (SMF) of 60 mT on mouse Cumulus Oocytes Complexes (COCs) vitrification. The COCs were vitrified in the presence (Vit_SMF+) and absence of SMF (Vit_SMF−). Along with these groups, non-vitrified or fresh COCS, which exposed (nVit_SMF+) and non-exposed (nVit_SMF−) to magnetic field, were also considered. Survival and viability rates and mitochondrial activity as well as ultrastructure of oocytes were examined by trypan blue Staining (TBS), Annexin-PI Staining, JC1 staining and transition electron microscopy, respectively. Following in vitro fertilization (IVF) and embryo development, gene expression was carried out through qRT-PCR at blastocyst (BL) stage. The survival rate in Vit_SMF+ and Vit_SMF− decreased meaningfully in comparison with nVit_SMF− (P 
ISSN:0093-691X
1879-3231
DOI:10.1016/j.theriogenology.2020.12.025