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Journal of Clinical Endocrinology & Metabolism, Vol 53, 1307-1309, Copyright © 1981 by Endocrine Society

ARTICLES

Episodic secretion of human chorionic gonadotropin in early pregnancy

OM Owens, KJ Ryan and D Tulchinsky

The serum concentration of human chorionic gonadotropin (hCG) was measured at 10- to 60-minute intervals for 4-24 hours in 5 women at 5-8 weeks of pregnancy. hCG was found to be secreted episodically with pulses observed every 2-4 hours. The episodic secretion of hCG may have important implications to our understanding of both normal and abnormal reproduction.


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