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KMID : 1023620060300040307
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Reproductive and Developmental Biology
2006 Volume.30 No. 4 p.307 ~ p.311
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Effects of Oxytocin and In Vitro Development of Bovine Embryos Cultured with Uterine Cells
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Shin Seung-Oh
Park Soo-Bong
Lee Dong-Seok
Cheong Hee-Tae
Yang Boo-Keun
Park Choon-Keun
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Abstract
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The purpose of this study was to determine effects of oxytocin and on in vitro development of bovine embryo cultured with endometrial epithelial and stromal cells isolated from bovine uterus. The expressions of COX-2 mRNA in bovine endometrium were also studied. When embryos were cultured with epithelial cells, the rate of blastocysts was significantly (p<0.05) higher in embryos treated with oxytocin than that of control group. The rate of hatched blastocysts was also significantly (p<0.05) higher in embryos treated with oxytocin than those of two control groups. On the other hand, when the embryos were cultured with stromal cells, the rate of blastocysts were significantly (p<0.05) higher than those of groups treated with , oxytocin and control with stromal cells than that of control group without stromal cells. The rate of blastocysts hatched were also significantly (p<0.05) higher in group treated with than those of control group without stromal cells and oxytocin group. In another experiment, COX-2 gene was expressed in embryo group treated with oxytocin during the co-culture of embryos with epithelial cells. In contrast, COX-2 mRNA was expressed in group treated with when the embryos were cultured with stromal cell. This result shows that oxytocin and were stimulate embryo development in vitro when embryos were cultured with epithelial and stromal cells, and can affect the development of bovine embryos in the uterus.
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KEYWORD
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Uterine cells, Oxytocin, , In vitro development, Bovine embryos
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