Changes of serum LH (HCG) and FSH, and their response to LH-RH during pregnancy and puerperium were studied by radioimmunoassay. There was little change in serum FSH level due to progression of pregnancy, and the serum FSH level of pregnant women was almost unchanged after injection of LH-RH. Serum LH (HCG) which decreased rapidly after delivery returned at about 15 days after parturition, and ...

BACKGROUND Withholding gonadotrophins (coasting) can reduce the risk of severe ovarian hyperstimulation syndrome (OHSS) in patients having assisted reproduction therapy. This requires daily serum estradiol (E(2)) measurements, which occasionally have been seen to decline suddenly and sharply. METHODS To increase the sensitivity of the coasting programme we measured serum FSH in parallel with ...

Background Levels of serum gonadotropins have direct effects on testicular functions and spermatogenesis. Assessment of levels of serum gonadotropins from fathered subjects and infertile patients indicates wide range diversity. In this study, we tried to find out whether the levels of seminal FSH and LH affect the parameters of seminal fluid analysis (SFA) and if there is any correlation betwee...

Background Levels of serum gonadotropins have direct effects on testicular functions and spermatogenesis. Assessment of levels of serum gonadotropins from fathered subjects and infertile patients indicates wide range diversity. In this study, we tried to find out whether the levels of seminal FSH and LH affect the parameters of seminal fluid analysis (SFA) and if there is any correlation betwee...

BACKGROUND To test the effects of progressively decreasing dosages of exogenous LH we combined various amounts of HMG, containing FSH, LH and HCG, and highly purified (HP) FSH to treat 120 GnRH agonist-suppressed infertile female patients as candidates for controlled ovarian stimulation (COS). METHODS Subjects were randomly assigned to four treatment groups that received the following daily i...

Introduction. Coasting is the most commonly used strategy in prevention of severe OHSS. Serum FSH levels measurements during coasting may aid in optimizing the duration of coasting. Objective(s). To study live birth rates (LBRs), clinical pregnancy rates (CPRs), and optimal duration of coasting based on serum FSH levels on the hCG day. Materials and Methods. It is a retrospective study performe...

PURPOSE To determine whether serum follicle-stimulating hormone (FSH) can be used to predict the aggressiveness of prostate cancer prior to radical prostatectomy. METHODS Ninety-six patients who underwent radical prostatectomy for biopsy proved cT1c-T2N0M0 prostate cancer between 2003 and 2008 were identified for retrospective analysis. Using univariate regression analysis, potential variable...

In vitro studies have shown that the Sertoli cell is the primary source of inhibin in the male. To assess the regulation of inhibin production we measured serum inhibin, FSH, LH and testosterone in 21 normal men and 104 men with various testicular disorders resulting in infertility. The infertile men were subdivided into groups on the basis of their mean sperm count, FSH and LH levels. The mean...

Clinically nonfunctioning human pituitary adenomas (NFPAs) constitute about 25-35% of pituitary tumours. Relatively few studies have been carried out to determine the cellular origin and biology of the NFPAs. The present study was undertaken to assess the effect of surgical removal of adenoma on peripheral adenohypophyseal hormones. In addition, the pituitary hormones have also been measured di...

The recent availability of specific inhibin assays has demonstrated that inhibin B is the relevant circulating inhibin form in the human male. Inhibin B is a dimer of an alpha and a betaB subunit. It is produced exclusively by the testis, predominantly by the Sertoli cells in the prepubertal testis, while the site of production in the adult is still controversial. Inhibin B controls FSH secreti...