Microinjection of human sperm into peri vitelline space of hamster eggs: Comparison with zona-free hamster egg penetration of human sperm

S. U. Chen, Y. S. Yang, H. N. Ho, J. L. Hwang, T. S. Hong, H. R. Lin, S. C. Huang, T. Y. Lee

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6 引文 斯高帕斯(Scopus)

摘要

Micromanipulation of human sperm and oocyte has been utilized to facilitate fertilization of those patients with male factor due to oligoasthenospermia or those patients with repeated fertilization failure in an in vitro fertilization (IVF) program. Before manipulating human gametes, one needs experience with animal models. Our objective was to perform subzonal insertion of human sperm into hamster eggs and to compare the result with that of sperm penetration assay (SPA) using zona-free hamster eggs. Semen samples were obtained from 15 fertile donors with normal semen analysis and the motile sperm were collected by swim-up procedure. Microinjection was performed by injecting a varied number of sperm into the perivitelline space of 222 hamster eggs pretreated with sucrose solution (0.1 M). The rate of damage of eggs during microinjection was 7.2% (16/222). The rates of penetration in the microinjection group were 5.1% (4/79) for 1-5 sperm injected, 10.9% (11/101) for 6-10 sperm injected, and 11.5% (3/26) for 11-15 sperm injected. The average rate of penetration per egg was 8.7% (18/206), and the polyspermic rate was 11.1% (2/18). Simultaneously SPA was performed in each sample of semen as a positive control, and the average rate of penetration of SPA was 51.4% (108/ 210). The rate of penetration in the microinjection group was significantly smaller (p < 05) than that in the SPA group. Whether the penetration rate and polyspermic rate in a hamster model reflect similar results in human oocyte requires further investigation. However, the hamster egg provides an ideal model to develop a micromanipulation technique for human beings.
原文英語
頁(從 - 到)201-207
頁數7
期刊Systems Biology in Reproductive Medicine
30
發行號3
DOIs
出版狀態已發佈 - 一月 1 1993
對外發佈

ASJC Scopus subject areas

  • 生殖醫學
  • 泌尿科學

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