BACKGROUND Testosterone levels have been linked to life expectancy in men, less is known about the sex hormones follicular stimulating hormone and luteinizing hormone. AIM To examine the association of testosterone, follicular stimulating hormone, luteinizing hormone with mortality. DESIGN Prospective cohort analysis. METHODS Participants were 4255 Vietnam-era US army veterans with a mean...

Twelve female ponies were examined daily for 30 days and classified as ovulating (OV; N = 6; 197 +/- 6 kg) or prepubertal (PP; N = 6; 196 +/- 9 kg). Follicles were detected by ultrasound and gonadotropins quantified by radioimmunoassay. The mean diameter of the largest follicles was significantly larger in OV (38 +/- 1 mm) than in PP (26 +/- 2 mm) but there was no difference between groups in t...

Abbreviations 1-MA 1-methyladenine AC adenylate cyclase cADPr cyclic ADP-ribose CaMKII calcium/calmodulin-dependent kinase DHP 17,20b-dihydro-4-pregnen-3-one ER endoplasmic reticulum ES cells embryonic stem cells FF-MAS follicular fluid meiosis-activating sterol FSH follicle-stimulating hormone GPCR G-protein coupled receptor

Objective: To explore the effect of Daine-35 on serum hormone and antral follicle count of different subtypes of polycystic ovarian syndrome (PCOS). Methods: 138 cases of PCOS were recruited and typed according to Rotterdam diagnostic criteria; 78 cases of tubal infertility without hyperandrogenism and menstrual disorders during the same period were collected as control. Serum reproductive horm...

A case of bilateral gonadoblastoma/dysgerminoma in a 46 XY phenotypical female is presented. Increased circulating beta human chorionic gonadotropin (beta-HCG) and testosterone together with a decreased concentration of follicle stimulating hormone (FSH) reflected the activities of these tumours. The patient is alive and well three years later, after treatment by surgery and cobalt therapy.

Effect of soybean (Glycine max) on serum level of some sex hormones: testosterone, follicle stimulating hormone (FSH), luteinizing hormone/interstitial cell stimulating hormone (LH/ICSH), estradiol and prolactin in male rats was investigated. Twenty male albino rats of 12 weeks old with similar body weights were assigned to four groups of 5 rats each and treatment with soybean meal at 100, 200 ...

Abbreviations used in this paper: BM, basement membrane; BTB, blood–testis barrier; ChIP, chromatin immunoprecipitation; ES, ectoplasmic specialization; FSH, follicle-stimulating hormone; GCNA1, germ cell nuclear antigen 1; H&E, hematoxylin and eosin; Het, heterozygous; IF, immunofluorescence; IHC, immunohistochemistry; KO, knockout; LH, luteinizing hormone; MMP, matrix metalloproteinase; P, po...

The gonadotropins, luteinizing hormone (lutropin, LH) and follicle-stimulating hormone (follitropin, FSH) through their ability to regulate the synthesis of the sex steroids (androgens and estrogens), are indispensable for proper gonadal development and function(1). The synthesis and secretion of gonadotropins are regulated by the hormones produced by the pituitary itself (such as follistatin a...

Follicle-stimulating hormone (FSH) is the pituitary hormone responsible for testicular tubal development and ovarian follicular recruitment and maturation. Both recombinant and purified urinary FSH are currently used for ovulation induction in women undergoing assisted reproduction. In this report, we describe Chinese hamster ovary (CHO-K1) cell expression of a novel long-acting human FSH singl...

Follicle growth and associated changes in circulating hormone concentrations were evaluated after follicle ablation in mares (n = 13) during four 13 day periods beginning at means of -98.5, -61.4, -26.0 and 10 days from the first ovulation and corresponding to mid-anovulatory, early-transitional, late-transitional and ovulatory periods, respectively. During each period, all follicles > 5 mm in ...