会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 4. 发明申请
    • A STRATEGY FOR MAINTAINING PREGNANCY
    • 维护孕妇的策略
    • WO0172120A3
    • 2002-02-14
    • PCT/US0109403
    • 2001-03-23
    • GERON CORPKING TIMOTHY J
    • KING TIMOTHY J
    • A61K35/12C12N5/073A01K67/027A61K35/54
    • C12N5/0604A61K35/12A61K2035/122C12N2510/00
    • Pregnancy in animals such as the pig usually does not continue to term when there are only a few embryos in the uterus. Currently available technology for maintaining pregnancy involves a series of hormone injections, and the failure rate is high. It has now been discovered that pregnancy can be maintained by complementing fertile embryos in the uterus with additional embryos that aren't expected to survive the full term of the pregnancy. Particularly suitable are parthenogenetic embryos, formed by activating and diploidizing unfertilized oocytes. The carrier embryos are engrafted into the uterus of a surrogate female, and the pregnancy continues to term without further intervention - even if the number of fertile embryos is below the minimum litter size. This provides valuable biological material that can be used for transplantation, the production of pharmaceuticals, and for agricultural use.
    • 动物如猪的妊娠通常在子宫中只有少数胚胎时不能持续。 目前用于维持怀孕的技术涉及一系列激素注射,失败率高。 现在已经发现,通过补充子宫中的可育胚胎可以维持怀孕,另外的胚胎预计不会在怀孕的全期生存。 特别合适的是通过激活和二倍体化未受精的卵母细胞形成的孤雌胚胎。 载体胚胎被移植到代孕女性的子宫中,怀孕继续进行而无需进一步干预 - 即使可育胚胎的数量低于最小产仔数。 这提供了可用于移植,药物生产和农业用途的有价值的生物材料。