BACKGROUND AND AIMS The cortisol/testosterone (C/T) ratio has been hypothesized to be a better predictor of atherosclerosis than cortisol alone. No study has assessed whether the C/T and C/sex hormone-binding globulin (SHBG) ratios are associated with atherosclerosis in a U.S. population sample. METHODS This substudy included 367 women who had both cortisol from year 15 and testosterone and S...

Abstract Introduction Testosterone (T) plays an important role in properly developing and maintaining male reproductive tissues. The normal serum testosterone levels can vary between 300 to 1000 ng/dL or 10.4 34.7 nmol/L. However, it is unclear whether androgen receptor signaling based on T the half-life of therapy. What remains unknown there a uniform level above which within tissue similar (s...

ABSTRACT Introduction: Physical exercise is an important factor in regulating energy balance and body composition. Exercise itself a kind of stress. It involves the central nervous system, cardiovascular, respiratory, endocrine, other systems. Sports have various effects on hormones adolescent height development. Objective: This article analyzes different time load training levels serum testost...

Latent toxoplasmosis is known to influence the morphology of infected persons and also increases the probability of the birth of male offspring in both humans and mice. All these traits can be related to the observed differences in the concentration of testosterone between Toxoplasma-infected and Toxoplasma-free subjects. However, it is not possible to decide, using the Toxoplasma-human model, ...

Evidence suggests low testosterone levels in Alzheimer's disease. Objectives To compare testosterone levels between older men with and without Alzheimer's disease. Methods Fourteen men with Alzheimer's disease were compared with twenty eight men without dementia. Demographic variables and clinical profiles were analyzed. Within fifteen days before or after the described evaluation, measures...

objectives: this study was designed to investigate the potential phyllanthus niruri extracts in promotion of hair growth. materials and methods: here, we studied the hair growth promoting activity of petroleum ether extract of p. niruri following its topical administration. alopecia was induced in albino rats by subcutaneous administration of testosterone for 21 days. evaluation of hair loss in...

PURPOSE Testosterone by promoting different metabolic pathways contributes to short-term homeostasis of skeletal muscle, the largest insulin-sensitive tissue and the primary site for insulin-stimulated glucose utilization. Despite evidences indicate a close relationship between testosterone and glucose metabolism, the molecular mechanisms responsible for a possible testosterone-mediated insulin...

PURPOSE This study was conducted to investigate the relationship between serum total testosterone levels and scores on the Aging Male's Symptom (AMS) scale and the International Index of Erectile Function (IIEF) in men with erectile dysfunction with testosterone deficiency syndrome (TDS). MATERIALS AND METHODS From January 2005 to July 2008, 134 patients who complained of sexual dysfunction s...

BACKGROUND Striking parallels are observed when comparing the literature on the 5-HTTLPR of the serotonin transporter gene (SLC6A4) to the testosterone (T) literature on measures of stress reactivity and neural activity. Short (S) allele carriers and individuals higher in testosterone levels show exaggerated stress responses, amygdala hyperactivity, and reduction of amygdala-prefrontal cortex c...

The home advantage is a robust phenomenon that occurs in the world of amateur and professional sport. Athletic teams have been shown to win significantly more games in their home venue as compared to their opponents' venue. Studies have suggested that the home advantage may be related to familiarity with the facility, increased crowd density and even pre-competition hormonal levels. The present...