A METHOD AND USE OF POLYPEPTIDE IN SPERM-EGG BINDING TO ENHANCE OR DECREASE FERTILITY
    2.
    发明公开
    A METHOD AND USE OF POLYPEPTIDE IN SPERM-EGG BINDING TO ENHANCE OR DECREASE FERTILITY 失效
    方法和多肽的的使用精卵结合,以增加或生育力的降低

    公开(公告)号:EP0876610A1

    公开(公告)日:1998-11-11

    申请号:EP97901914.0

    申请日:1997-01-06

    IPC分类号: G01N33 A61K38 A61P15 C07K7 C07K14

    摘要: A purified polypeptide which provides for initial binding of sperm to oocyte investments and has an active amino acid sequence of SEQ ID NO:12 (Cys-Gln-Ser-Leu-Gln-Glu-Tyr-Leu-Ala-Glu-Gln-Asn-Gln-Arg-Gln-Leu-Glu-Ser-Asn-Lys-Ile-Pro-Glu-Val-Asp-Leu-Ala-Arg-Val-Val-Ala-Pro-Phe-Met-Ser-Asn-Ile-Pro-Leu-Leu-Leu-Tyr-Pro-Gln-Asp-Arg-Pro-Arg-Ser-Gln-Pro-Gln-Pro-Lys-Ala-Asn-Glu-Asp-Val-Cys); or SEQ ID NO:13 (Cys-Glu-Ser-Leu-Gln-Lys-His-Leu-Ala-Glu-Leu-Asn-His-Gln-Lys-Gln-Leu-Glu-Ser-Asn-Lys-Ile-Pro-Glu-Leu-Asp-Met-Thr-Glu-Val-Val-Ala-Pro-Phe-Met-Ala-Asn-Ile-Pro-Leu-Leu-Leu-Tyr-Pro-Gln-Asp-Gly-Pro-Arg-Ser-Lys-Pro-Gln-Pro-Lys-Asp-Asn-Gly-Asp-Val-Cys); or the shorter but biologically active SEQ ID NO:1 and SEQ ID NO:9 (Tyr-Pro-Gln-Asp-Arg-X-Arg-Ser-Gln-Pro-Gln-Pro-Lys-Ala-Asn, where X is Thr or Pro). The polypeptide is useful in improving sperm-egg binding by fresh sperm, restoring sperm-egg binding following a cryopreservation cycle, enhancing fertilizing potential, and producing antibodies to determine fertilizing potential of sperm, determining sperm-binding sites on egg investments, and contraception.

    CALCITONIN FOR THE MODULATION OF SPERM FUNCTION
    8.
    发明公开
    CALCITONIN FOR THE MODULATION OF SPERM FUNCTION 审中-公开
    降钙素调制精子功能

    公开(公告)号:EP1133313A2

    公开(公告)日:2001-09-19

    申请号:EP99972927.0

    申请日:1999-12-01

    摘要: The hormone calcitonin promotes fertilizing ability in mammalian sperm and is useful for treatment of conditions of low fertility in humans and animals. Human, porcine or salmon calcitonin may be formulated in a pharmaceutical composition comprising a pharmaceutically acceptable carrier for topical application, e.g. as a cream or jelly containing up to 100 ng/ml or more of salmon calcitonin or up to 2 mug/ml or more of human calcitonin. Calcitonin may also be administered parenterally, orally, or nasally. For improving in vitro fertilization or artificial insemination methods calcitonin is added to sperm prior to use e.g. salmon calcitonin present at a concentration of from 5 to 50 ng/ml or human calcitonin at a concentration of from 20 to 200 ng/ml in the sperm preparation. Calcitonin levels in seminal plasma can also be used to diagnose infertility.