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chorionic gonadotrophin |
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chorionic gonadotrophin n (Life Sciences & Allied Applications / Biochemistry) a hormone secreted by the chorionic villi of the placenta in mammals, esp human chorionic gonadotrophin. It promotes the secretion of progesterone by the corpus luteum and its presence in the urine is an indication of pregnancy How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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| A reduction in circulating levels of estrogens and insulin-like growth factor 1 (IGF-1) and/or elevated levels of progesterone, androgens, human chorionic gonadotrophin, IGF-1 binding proteins 1 and 3, cortisol, and insulin have been associated with reduced risk. Gonadotrophin-releasing hormone and human chorionic gonadotrophin tests reveal that both hypothalamic and testicular endocrine functions are suppressed during acute prolonged physical exercise. The two new Down syndrome reagents are designed to measure the free beta subunit of human Chorionic Gonadotrophin ("Free hCG[eth]") and Pregnancy Associated Plasma Protein A ("PAPP-A"), respectively, in maternal serum, which are important markers of Down syndrome. |
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