Comparison of Cryotop and ReproCarreir products for cryopreservation of bovine blastocysts through survival rate and blastocysts quality

Autor: Jin-Woo Kim, Seul-Gi Yang, Hyo-Jin Park, Ju Hwan Kim, Dong-Mok Lee, Seong-Min Woo, Hyun-Jeong Kim, Hyun Ah Kim, Jae-Hoon Jeong, Min Ji Lee, Deog-Bon Koo
Jazyk: English<br />Korean
Rok vydání: 2020
Předmět:
Zdroj: Journal of Animal Reproduction and Biotechnology, Vol 35, Iss 2, Pp 207-213 (2020)
Druh dokumentu: article
ISSN: 2671-4639
2671-4663
DOI: 10.12750/JARB.35.2.207
Popis: Cryopreservation is used for blastocyst preservation of most mammalian embryos and is an important technique for breeding. We aimed to compare the efficiency of the cryopreservation method using the standard Cryotop device and the ReproCarrier device, a domestic product manufactured in Korea. The efficacy of the two devices was analyzed based on the survival rate, intracellular levels of reactive oxygen species (ROS), and apoptosis of the vitrified bovine blastocysts. The survival rates of the vitrified-warmed blastocysts were similar between the ReproCarrier group (58.4 ± 17.7%) and Cryotop group (59.9 ± 14.1%). Intracellular ROS levels and apoptotic index were determined by DCFDA staining and TUNEL assay. Changes in intracellular ROS levels, number of total nuclei, and cellular apoptosis of vitrified blastocysts after cryopreservation were not significantly different between the two groups. These results indicate that the ReproCarrier device method is as effective as the standard Cryotop method for vitrification of bovine blastocysts in vitro.
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