Sentences with phrase «male serum testosterone»

The normal adult male serum testosterone level for a man under 40 years of age is between 3 and 10 ng / ml, and decreases with increasing age [8 - 10].

In a study in the Journal of Clinical Endocrinology and Metabolism, Thomas G. Travison, Ph.D, of the New England Research Institutes (NERI) in Watertown, Mass., and lead author of the study said: «Male serum testosterone levels appear to vary by generation, even after age is taken into account.»

Not exact matches

These findings call into question the safety of the recent substitution of DiNP for DEHP in soft PVC, particularly since a shorter male AGD has been shown to be related to male genital birth defects in children (such as hypospadias and undescended testis) and impaired reproductive function in adult males (such as decreased fertility, impaired semen quality and lower serum testosterone levels) and the fact that human levels of DiNP are rapidly increasing globally, says Carl - Gustaf Bornehag, professor in Public Health Sciences at Karlstad University and responsible for the current study.

They had 1362 male subjects, and the results show that vitamin D has a linear positive association with serum total and free testosterone levels.

Age trends in the level of serum testosterone and other hormones in middle - aged men: longitudinal results from the Massachusetts male aging study.