Abstract:
:Cryopreservation by low-cryoprotectant (CPA) vitrification has the potential to combine all the advantages of the conventional high-CPA vitrification and slow-freezing approaches while avoiding their drawbacks. However, current low-CPA vitrification protocol for cryopreservation of oocytes requires a lengthy and multi-step procedure for unloading CPAs. In this study, we report a much-simplified procedure of using quartz microcapillary (QMC) for low-CPA vitrification of mouse oocytes with only one step for unloading CPAs. The immediate viability of oocytes after the improved low-CPA vitrification was determined to be more than 90%. Moreover, no significant difference was observed in terms of embryonic development from the two-cell to blastocyst stages between the fresh and vitrified oocytes after in vitro fertilization (IVF). This improved low-CPA vitrification technology has the potential for efficient cryopreservation of oocytes to preserve the fertility of mammals including humans for assisted reproductive medicine, maintenance of animal resource and endangered species, and livestock management.
journal_name
Cryobiologyjournal_title
Cryobiologyauthors
Choi JK,Huang H,He Xdoi
10.1016/j.cryobiol.2015.04.003subject
Has Abstractpub_date
2015-06-01 00:00:00pages
269-72issue
3eissn
0011-2240issn
1090-2392pii
S0011-2240(15)00062-0journal_volume
70pub_type
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