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Korean Journal of Obstetrics & Gynecology 2002;45(3):416-423.
Published online March 1, 2002.
Study on Development of Mouse Preimplantation Embryos in Culture Media with Different Composition of Energy Sources.
Jong Bum Lee, Ju Hwan Kim, Jee Hwan Ko, Young Kun Oh, Song Kyong Son, Young Seok Seo, Heung Tae Noh, Kil Chun Kang, Hai Bum Song, Ki Hwan Lee
1Department of Obstetrics and Gynecology, College of Medicine, ChungNam National University, Korea.
2Department of Animal Science, Taegu University, Korea.
Abstract
OBJECTIVE
The objective of this study was to examine the effect on development of mouse preimplantation embryos in culture media with different composition of energy sources in vitro culture. METHODS: Two hundred and seventy one two-cell embryos were cultured in four different culture system for 96 hours. Group I (n=61) was cultured in DMEM-G (DMEM with glutamine) only, groupII (n=64) was cultured in DMEM-GGP (DMEM with glutamine, glucose and pyruvate) only, group III (n=72) was cultured for 48 hours in DMEM-G and then transferred to DMEM-GGP and group IV (n=74) was cultured for 48 hours in DMEM-GGP and then transferred to DMEM-G. Development of embryos in each group was observed every 24 hours. RESULTS: After 24 hours, the rate of development > or = 3-cell was significantly higher in groupII (87.5%) and IV (86.5%) compared with group I (59.0%) and III (62.5%). After 48 hours, the rate of development into > or = morula stage was significantly higher in GroupII (79.7%) and IV (86.5%) compared with group I (34.4%) and III (37.5%). After 72 hours, the rate of development into blastocyst was significantly higher in group IV (74.3%) compared with group I (49.2%) and III (45.8%). After 96 hours, the rate of development into > or = expanded blastocyst was significantly higher in group IV (70.3%) compared with group I (32.8%),II (53.1%), and group III (40.3%). CONCLUSION: Mouse preimplantation embryos development was the most effective in culture system with DMEM-GGP for 48 hours and then transferred to DMEM-G.
Key Words: Mouse embryo, Culture, DMEM, Glucose, Pyruvate


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