INTRODUCTION Worldwide many aging males practice sports. A high prevalence of late-onset male hypogonadism has been observed in general population. Sport-participation influences the neuroendocrine system and may decrease serum testosterone. AIM This preliminary study was designed to estimate the prevalence and the symptoms of undiagnosed testosterone deficiency in aging athletes. METHODS T...

Background: Animal models and observational studies have suggested a favorable role of vitamin D in male reproduction. However, randomized clinical trials investigating the effect of vitamin D supplementation on male fertility are limited. Therefore, this study aimed to examine the effect of vitamin D supplementation on semen quality, reproductive hormones, and anthropometric measurements in vi...

The purpose of this study was to compare the serum levels of androgens between hyposexual and non-hyposexual patients with epilepsy. Adult male patients with epilepsy were investigated. Serum levels of testosterone (T) and free-T, estradiol, and sex hormone binding globulin (SHBG) were measured and the free androgen index (FAI) was calculated. While there were no differences between hyposexual ...

Introduction: Boron possesses widespread properties and is important for human and animal nutrition. Since Boron is rapidly bioavailable, the objective of the present study was to determine whether acute (hourly or daily), and weekly supplementationcould have any significant biological effects on the synthesis of steroids as well as inflammatory biomarkers. Methods: Eight male volunteers part...

Introduction: Hyperandrogenism may be implicated in the pathogenesis of pre-eclampsia. We hypothesised that there may be a difference between the levels of testosterone in pregnant women complicated with pre-eclampsia and those of matched women without this complication. Material and methods: A case-control study conducted in Tehran, Iran between January and June 2006 included 20 women with mod...

The role of gonadotropins, androgens, and insulin in the regulation of circulating leptin levels is obscure. In order to clarify the relationships of these parameters we studied serum leptin levels in 19 healthy control subjects and in 35 hyperandrogenic and hyperinsulinemic patients with polycystic ovary syndrome (PCOS). Serum leptin concentrations did not differ significantly between PCOS pat...

Background After American occupation to Iraq, no day passed without terrorist attacks or explosion in Iraq. The impact of this events extends to interact with all fields of life. The present study was designed to investigate the basal levels of hormones that affect sexual life of men patients with posttraumatic stress disorder (PTSD) and control group. MaterialsAndMethods Eighty two males witne...

The goal of this study was to identify the clinical and biological patterns of hypogonadism in a cohort of 1040 elderly men. Residual androgenic activity was estimated by total testosterone as well as the apparent free testosterone concentration (AFTC) and free testosterone index (FTI) calculated on the basis of concentrations of SHBG and total testosterone using appropriate formulae. The lower...