The blastocyst of mammalian species and the placenta of human being are known to produce a variety of hormones, including both sex steroids and gonadotropic peptides. The human chorionic gonadotropin, hCG, has been de...The blastocyst of mammalian species and the placenta of human being are known to produce a variety of hormones, including both sex steroids and gonadotropic peptides. The human chorionic gonadotropin, hCG, has been detected in pregnant woman’s serum as early as day 7 of gestation. Since the synthesis and the release of the pituitary gonadotropins are directly regulated by the luteinizing releasing hormone (LHRH) of the hypothalamus, it would be of great interest to see if its counterpart is展开更多
基金Supported in part by a grant-in-aid from The Rockefeller Foundation, New York, USA
文摘The blastocyst of mammalian species and the placenta of human being are known to produce a variety of hormones, including both sex steroids and gonadotropic peptides. The human chorionic gonadotropin, hCG, has been detected in pregnant woman’s serum as early as day 7 of gestation. Since the synthesis and the release of the pituitary gonadotropins are directly regulated by the luteinizing releasing hormone (LHRH) of the hypothalamus, it would be of great interest to see if its counterpart is
