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대한생식의학회지 제19권 제2호 2010년
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서울대학교 의과대학 산부인과학교실;서울대학교 의과대학 산부인과학교실;서울대학교 의과대학 산부인과학교실;서울대학교 의과대학 산부인과학교실;서울대학교 의과대학 산부인과학교실;서울대학교 의과대학 산부인과학교실;서울대학교 의과대학 산부인과학교실;서울대학교 의과대학 산부인과학교실;
방명걸;정구민;김석현;신창재;김정구;문신용;이진용;장윤석;,
Assessment of Fertilizing Capacity of Human Spermatozoa Using Cryopreserved Hamster Oocytes
Pang, Myung-Geol;Chung, Ku-Min;Kim, Seok-Hyun;Shin, Chang-Jae;Kim, Jung-Gu;Moon, Shin-Yong;Lee, Jin-Yong;Chang, Yoon-Seok;
Department of Obstetrics and Gynecology, College of Medicine, Seoul National University;Department of Obstetrics and Gynecology, College of Medicine, Seoul National University;Department of Obstetrics and Gynecology, College of Medicine, Seoul National University;Department of Obstetrics and Gynecology, College of Medicine, Seoul National University;Department of Obstetrics and Gynecology, College of Medicine, Seoul National University;Department of Obstetrics and Gynecology, College of Medicine, Seoul National University;Department of Obstetrics and Gynecology, College of Medicine, Seoul National University;Department of Obstetrics and Gynecology, College of Medicine, Seoul National University;
To solve the logistical problems of the sperm penetration assay (SPA) to provide just a sufficient number of hamster ova exactly when they are needed, a new method to cryopreserve the ova has been devised (1-step dehydration and 2-step thawing). After freezing & thawing of zona-intact (ZI) and zona-free (ZF) hamster ova according to this new method, the frozen-thawed ova were compared with fresh, control ova (FO) in terms of the degree of sperm penetration in SPA using semen samples from fertile donors, subfertile, and infertile male. Each sperm sample was capacitated for 42 hours inTEST-Yolk Buffer before insemination in SPA. In fertile doner, both the penetration rate and penetration index were lower in SPA using frozen ova (ZI; 92.4%, 6.2, ZF; 63.7%, 3.9) than those of SPA using fresh ova (99.3%, 8.4). There was a significant correlation between the penetration index of SPA using FO and ZI (p<0.001), and between those of SPA using FO and ZF and ova (p<0.001). In subfertile patient, both the penetration rate and penetration index were lowered in frozen ova (ZI; 62.3%, 1.3, ZF; 21.8%, 0.4) than those of fresh ova (74.8%, 1.8). There were significant correlation between the penetration rate and penetration index in ZI ova (p<0.05 and p<0.001, respectively). In infertile patient, both the penetration rate and penetration index were ZI; 3.1%, 0.0, ZF;0.0%, 0.0, respectively. There were significant correlation between the penetration rate and penetration index in ZI ova (p<0.05).
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