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논문 기본 정보

자료유형
학술저널
저자정보
김해권 (서울여자대학교 자연과학대학 생물학과) 윤용달 (한양대학교 자연과학대학 생물학과) 이영기 (강릉대학교 치과대학 해부학교실)
저널정보
한국동물번식학회 한국동물번식학회지 한국동물번식학회지 제18권 제4호
발행연도
1995.1
수록면
285 - 297 (13page)

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The mammalian oviduct is a place where ontogeny of an animal begins. Nowadays, however, it is possilbe to manipulate a part of physiological events occurring in the oviduct so that fertilization of gametes and early embryonic development of zygotes could proceed outside oviductal environment. Rabbit zygotes readily develop to blastocysts in a conventional culture condition. Most of the mouse fertilized eggs do so when cultured under a specific environment, e.g., in a medium containing ethylenediamine tetraacetic acid. Similarly, a significant number of zygotes from rat, sheep, pig or cattle can develop to blastocysts if they are cultured in the presence of particular component which appear to be somewhat species-specific. Instead of changing the components of medium, somatic cells including oviductal epithelial cells, have widely been used to improve mammalian embryonic development in vitro. Many investigators have reported that mammalian zygotes, whether fertilized in vivo or in vitro, could develop to blastocysts when they were cultured on a monolayer of various kinds of somatic cells or even in a somatic cell-conditioned medium. While little is known about the nature of embryotrophic factor(s) produced in vitro by somatic cells, the existence fo oviduct-specific protein(s) has consistently been demonstrated in many laboratories. Some of these proteins are reported to be associated with oviductal eggs. However, the physiological role of these proteins has still to be determined. Recently we observed that the perivitelline space of mouse oocytes was fluorescently stained with various fluorochrome-protein conjugates following ovulation into the oviducts or upon their expossure to oviductal extracts. Furthermore, it was also found that cattle or pig oviductal fluid gave similar results when examined using mouse ghost ZP. These observations lead to suggest that mammalian oviduct induces changes of biochemical properties of oocytes. Further studies are needed to clarify the nature of oviductal factor(s) and the physiological meaning of the reaction.

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