Regulation of Human Gonadotropins: II. Disappearance of Human Chorionic Gonadotropin Following Delivery1
- 1 December 1968
- journal article
- other
- Published by The Endocrine Society in Journal of Clinical Endocrinology & Metabolism
- Vol. 28 (12) , 1712-1718
- https://doi.org/10.1210/jcem-28-12-1712
Abstract
The levels of HCG in the serum and urine of post-partum women have been measured by RIA over a period of several days. The rate of disappearance of HCG from the serum decreased with time, resulting in an apparent progressive increase in the half-life of HCG during the first 3 days. The resulting composite disappearance curve appeared to be the result of 2 linear components, the first corresponding to a half-life of 8.9 hr and the second to a half-life of 37.2 hr. Similar half-life values were found for HCG present in newborn infants (9.1–16.8 hr) and for HCG injected into one nonpregnant subject (32 hr).Keywords
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