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Korean Journal of Fertility and Sterility 1999;26(2):137-148.
Published online January 1, 2001.
Influence of Ovulation Induction Medicine on the Nuclear Maturation of Mouse Immature Oocytes and Development of Mouse 2-cell Embryo in Various Culture Media>.
Jong Jin Lee, Chun Mo Yang, Hyun Chang Moon, Ho Seong Lee, Ky Sook Lee, Cheul Hee Rheu, Jong Duk Kim
Abstract
Purpose of the present study was to find the optimal ovulation induction medicine for the maturation and development of immature oocytes and culture media for 2-cell embryos in the mouse model. ICR female mouse aged 6 to 8 weeks, were stimulated with 5 IU PMSG injection. At 47 to 50 hour post-PMSG injection, ovaries were dissected out and oocytes-cumulus complexes were punctured. The oocyte-cumulus complexes were cultured in media containing various ovulation induction medicine, CC, HMG and Metrodin for 18 hours. Female ICR mice were stimulated with 5 IU PMSG and 48 hours later were injected 5 IU of hCG, then female and male mice were mated. At 48 hour post-hCG injection, oviducts were dissected out and 2-cell embryos were flushed. The 2-cell embryos were cultured in various media, Ham's F-10 media of milli-Q water (3degrees), Ham's F-10 media of HPLC (high performance liquid chromatography, Baxter) water, Medicult media, HTF (human tubal fluid) media for 96hours. The results were as follows. 1. When the oocytes-cumulus complexes were cultured in 10(-9)microgram/ml~ 10(-8)microgram/ml of CC, those were suppressed in meiotic maturation (28.2~ 33.7%). Whereas the oocytes-cumulus complexes were cultured in 10(-7)microgram/ml~10(-4)microgram/ml, these were not effected in meiotic maturation (54.5~72.7%). 2. When the oocytes-cumulus complexes were cultured in 10(-4)microgram/ml~ 10(-1)microgram/ml of Metrodin, those were suppressed in meiotic maturation (35.7~ 41.5%). Meanwhile the oocytes-cumulus complexes were cultured in 10(-7)microgram/ml~10(-5)microgram/ml, those were not effected in meiotic maturation (54.2~ 70.3%). 3. When the oocytes-cumulus complexes were cultured in 10(-5)microgram/ml~ 10(-4)microgram/ml of HMG, those were suppressed in meiotic maturation (48.2~ 50.4%). As being cultured in 10(-7)microgram/ml~10(-6)microgram/ml, increased in meiotic maturation (75.8~80.7%). 4. When the 2-cell embryos were cultured in Ham's F-10 media of milli-Q wats. ( 3degrees), Ham's F-10 media of HPLC (high performance liquid chromatograpy, Banter) water, Medicult media, HTF (human tubal fluid) media, developmental rates to blastocyst and hatching for 96 hour were 50.0%, 45.2%, 71.5% and 95.6%, respectively.
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