Results are as follows. Vitrification solution PMDD ( 2% PVP) containing many cryoprotectants could vitrify stably and its devitrification rate was also, so it is suitable for embryo vitrification. 结果表明:含有多种抗冻剂的玻璃化液PMDD(2%PVP),玻璃化稳定,脱玻璃化率较低,适宜进行玻璃化冷冻。
Additional research is needed to verify that vitrify 2-to 8-cell stage embryos by OPS method can also develop into later stages. 但经OPS方法冷冻的2~8-细胞期的胚胎解冻后能否进一步向后期发育,仍需进行深入的研究。