| 摘要 |
Compositions and methods are provided for enhancing the survival and promoting the maturation of mammalian oocytes, zygotes and preimplantation embryos. BDNF or BDNF agonists may be administered to an individual, or to cells in vitro, to enhance cellular maturation, embryo growth and fertilization. Accordingly, compositions comprising BDNF are herein presented for use in promoting in vivo oocyte maturation as well as for use as a component in culture media for promoting preimplantation maturation of zygotes and embryos, for instance, for use with in vitro fertilization procedures and for the production of stem cells. Additionally, compounds that interfere with the binding of BDNF to its receptor may be administered to an individual to prevent oocyte maturation, thereby acting as a contraceptive. The BNDF receptor, TrkB, and BDNF also find use in the screening and design of agonists and antagonists for use in the methods of the invention.
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