Human Chorionic Gonadotropin Priming Does Not Improve Pregnancy Outcomes of PCOS-IVM Cycles

Effect of Adding Human Chorionic Gonadotropin to The Endometrial Preparation Protocol in Frozen Embryo Transfer Cycles

Human chorionic gonadotropin isoforms in the diagnosis of ectopic pregnancy.

BACKGROUND Early diagnosis of ectopic pregnancy uses ultrasound with serial measurements of total human chorionic gonadotropin (hCG). The objective of this study was to explore the possibility that an isolated measurement of hCG isoforms/subunits rather than total hCG could be used as a single test for ectopic pregnancy. METHODS Total and intact hCG, free hCG beta- and alpha-subunits (hCGbeta...

Hyperglycosylated human chorionic gonadotropin as an early predictor of pregnancy outcomes after in vitro fertilization.

OBJECTIVE To determine whether serum hyperglycosylated human chorionic gonadotropin (hhCG) measured as early as 9 days after egg retrieval can predict ongoing pregnancies after in vitro fertilization and fresh embryo transfer (IVF-ET). DESIGN Cohort SETTING Academic assisted reproduction center. PATIENT(S) Consecutive patients undergoing IVF-ET INTERVENTION(S): Serum hhCG and hCG levels m...

Human Chorionic Gonadotropin

A highly active preparation of human chorionic gonadotropin has been obtained by simple methods of column chromatography on diethylaminoethyl Sephadex and Sephadex G-100. The preparation appeared homogeneous by disc and immunoelectrophoresis, ultracentrifugation, and end group analysis. It assayed at 12,000 i.u. per mg by the rat prostrate gland and accessory sex organ method. The ~20,~ value w...

Human chorionic gonadotropin testing for early pregnancy viability and complications.

Human chorionic gonadotropin (hCG) is a heterogeneous molecule that is the marker of choice for detecting pregnancy and indicating ectopic pregnancies and spontaneous abortions. This article describes the use of hCG in detecting pregnancy, and how pregnancy detection is complicated by the extreme variation in individual hCG results and by the varying structure of hCG. The problems of false-posi...