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Tumorigenesis of Transgenic Mice Induced by mVP/SV40 T Hybrid Oncogene
Ryoo, Zae-Yoong 가톨릭의과학연구원 2000 가톨릭 의과학연구원 국제학술대회 Vol.4 No.-
The neuropeptide vasopressin is a nine-amino acid hormone synthesized as preprohormone in the cell bodies of hypothalamic magnocellular neurons. It has a direct antidiuretic action on the kidney. In order to produce animal models for multple endocrine neoplasia(MEN) induoed by hypothalamic tumor in vivo, we have used transgenic mice regulated by 7.6 kb vasopressin gene inserted to SV40 T antigen coding sequence.
ICSI 프로그램에서 생쥐 투명대를 이용한 고환조직내 정자의 동결
서태광,전병균,류은경,이은숙,류재웅,손시환,문진수,김광철,Suh, Tae-Kwang,Jeon, Byeong-Gyun,Ryu, Eun-Kyung,Lee, Eun-Sook,Ryoo, Zae-Yoong,Sohn, Sea-Hwan,Moon, Jin-Soo,Kim, Kwang-Chull 대한생식의학회 1997 Clinical and Experimental Reproductive Medicine Vol.24 No.2
The survival rate and motility recovered after cryopreservation of testicular spermatozoa in testicular sperm extraction (TESE)-ICSI program is low. The purpose of this study was to assess the availability and efficiency of mouse empty zona pellucida in cryopreserving human TESE spermatozoa. Mouse empty zonae pellucidae were obtained by extraction of cytoplasm with or without cytochalasin B treatment. Motile sperm from proven-fertile donor and two azoospermic patients after TESE were individually inserted into empty zona pellucida and cryopreserved. Two to five days after cyropreservation, the frozen sperm were thawed and the rates of recovery and motility were observed. The ooplasmic extraction rates of control (N=80) and cytochalasin B treated oocytes (N=80) were 94.0% and 96.2%, respectively (p>0.05). The post-thaw recovery rates of spermatozoa and rates of motility recovery of ejaculate (N=70) and testicular (N=70) sperm were 97.1%, 97.1% and 95.7%, 94.3%, respectively (p>0.05). The results of this study showed that the mouse zone pellucida is useful for cryostorage of single testicular spermatozoa.