Plasma membranes isolated from bovine corpora lutea showed specific binding with 1251-human chorionic gonadotropin and 1251-human luteinizing hormone; unlabeled hormones competitively inhibited the binding. The binding of the 1251-human chorionic gonadotropin to the receptor was a saturable phenomenon and the half-saturation was attained at a concentration of 4 X lo-r0 M. Maximum hormone recept...

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...

Plasma membranes isolated from bovine corpora lutea showed specific binding with 1251-human chorionic gonadotropin and 1251-human luteinizing hormone; unlabeled hormones competitively inhibited the binding. The binding of the 1251-human chorionic gonadotropin to the receptor was a saturable phenomenon and the half-saturation was attained at a concentration of 4 X lo-r0 M. Maximum hormone recept...

INTRODUCTION We describe a case of non-small cell lung cancer that was found to stain positive for beta-human chorionic gonadotropin on immunohistochemistry. Only a few case reports have described lung cancers that secrete beta-human chorionic gonadotropin. CASE PRESENTATION A 68-year-old Caucasian man presented with symptoms of weakness, fatigue and weight loss for the past two months. On ex...

We report the case of a 22-year-old male who had a history of metastatic right testicular tumor successfully treated with chemotherapy and surgery. Twenty-one months after the initial treatment, the serum human chorionic gonadotropin started to increase gradually, but whole body imaging including the left testis revealed no abnormal finding except testicular microlithiasis. A biopsy of the left...

introduction: ectopic molar pregnancy is a rare occurrence and consequently not often considered as a diagnostic possibility. in this article, an attempt was made to stress on the need for histopathological examination and follow up of every case of ectopic pregnancy. this was substantiated with the help of a case report. case presentation: a 30-year-old gravida 4, para 3, pregnant woman with a...

background: considering the effect of preterm delivery in morbidity and mortality of newborns, its precaution and prevention is so important. objective: to investigate the association between second trimester maternal serum biomarkers (human chorionic gonadotropin, alpha-fetoprotein, non-conjugated estrogen, inhibin a) and pre-term delivery. materials and methods: this is a historical cohort st...