Rudd, B. T., Rayner, P. H. W., Smith, M. R., Holder, G., Jivani, S. K. M., and Theodoridis, C. G. (1973). Archives of Disease in Childhood, 48, 590. Effect of human chorionic gonadotrophin on plasma and urine testosterone in boys with delayed puberty. The plasma testosterone and/or urine testosterone levels after 1500 units of human chorionic gonadotrophin (HCG) for four days have been measured...

Discordance has been reported in human chorionic gonadotropin (hCG) concentrations measured by different immunoassay kits. We examined the results for 40 serum samples assayed with 10 different hCG immunoassay kits. Results varied considerably. Individual sample results varied by as much as 58-fold. Average results for different kits varied by as much as 1.4-fold for pregnancy (20 samples) and ...

introduction: the aim of this study was to evaluate the expression of pinopodes as animplantation marker after ovarian hyper stimulation and progesterone injection using scanningelectron microscopic studies. material and methods: three groups of nmri adult female mice were used in the experiment. the control group (group a) were untreated pseudopregnant mice. group b mice were made pseudopregna...

Effect of different doses of hCG on diameter of the preovulatory follicle and interval to ovulation in mares E.L. Gastal a,∗, L.A. Silva a, M.O. Gastal a, M.J. Evans b a Departments of Veterinary and Animal Science, Federal University of Viçosa, Viçosa, MG 36570, Brazil b Department of Endocrinology, Christchurch Hospital, Christchurch, New Zealand Available online 6 April 2006

BACKGROUND The pregnancy hormone human chorionic gonadotropin (hCG) and its free subunits (hCG alpha, hCG beta) are produced in the male reproductive tract and found in high concentrations in seminal fluid, in particular hCG alpha. This study aimed to elucidate changes in peptide hormone profiles in patients showing abnormal semen analyses and to determine the genuineness of the highly abundant...

Human chorionic gonadotropin (hCG) is a dimeric glycoprotein hormone consisting of noncovalently associated and subunits. It is produced principally by the trophoblastic cells of the placenta but may also be produced by nontrophoblastic tissues including normal pituitary and neoplastic cells. Therefore, qualitative and quantitative measurement of hCG is clinically useful in the diagnosis of nor...

A multiple enzyme immunoassay (multi-EIA) was developed to quantify whole-molecule human choriogonadotropin (w-hCG) and free hCG beta-subunits (hCG-beta) simultaneously. A clone of a specific monoclonal antibody was coupled to solid phase; two other clones of different monoclonal antibodies were conjugated to horseradish peroxidase (HRP; EC 1.11.1.7) and alkaline phosphatase (AP; EC 3.1.3.1), r...

Concentrations of human choriogonadotropin (hCG) and its free beta subunit (beta hCG) were measured in serum by highly sensitive and specific time-resolved immunofluorometric assays (IFMAS). The results were confirmed by completely separating beta hCG and hCG by a novel method based on hydrophobic-interaction chromatography. We used three monoclonal antibodies in two different combinations. In ...

The synthesis of human chorionic gonadotropin (HCG) and its subunits was studied in simian virus 40 (SV40) tsA mutant-transformed human first-trimester and term placental cells at 33 degrees (the temperature at which the cells have the transformed phenotype) and at 40 degrees (the temperature at which the tsA transformants regain their nontransformed phenotype). 8-Bromo cyclic adenosine 3':5'-m...