低温保护剂
卵母细胞
男科
低温保存
卵丘
液氮
受精
怀孕
化学
子宫内
卵母细胞冷冻保存
生物
胚胎
医学
精子
胎儿
细胞生物学
生育率
遗传学
保持生育能力
人口
环境卫生
有机化学
出处
期刊:The Lancet
[Elsevier]
日期:1986-04-01
卷期号:327 (8486): 884-886
被引量:869
标识
DOI:10.1016/s0140-6736(86)90989-x
摘要
The first successful attempt at deep freezing and thawing of the human oocyte is reported. A twin pregnancy was achieved after insemination and replacement in utero. The procedure involved reduction in size of the oocyte/cumulus-oophorus complex, the addition of the cryoprotectant dimethyl sulphoxide as a one-step procedure, slow cooling between -7 degrees C and -36 degrees C after ice nucleation, and rapid freezing to -196 degrees C before storage in liquid nitrogen. Thawing was achieved rapidly by warming in a 37 degrees C water-bath, followed by dilution of dimethyl sulphoxide as a single step. 80% of forty oocytes showed morphological survival after freezing and thawing. Thirty of these were inseminated; 83% retained their capacity to be fertilised, and 60% proceeded to cleavage division.
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