Testosterone is often referred to as the male hormone. But, it is also produced by women, in smaller amounts. It is produced in the testes in men, ovaries in women, and adrenal glands in both females and males. This androgen hormone is handles strength, muscle growth, energy, fat distri...
The sexually dimorphic developing brain is organized in large part by developmental hormone exposure, with males experiencing elevated testosterone levels during the process of normal testes development, largely in utero, although the exact timing of this is species-dependent. Aromatization of this ...
Since penile development and growth occurs most significantly during adolescence, there is a possibility that penile growth happens at different ages for males of different racial groups. According to astudypublished in the journal ofPediatrics(2009), sexual maturation does indeed begin and peak at di...
Aromatization of testosterone to estradiol occurs in primates, including humans, but does not necessarily have a major role in masculinization of the primate brain. Instead, both testicular production of testosterone and intact androgen receptors are necessary to defeminize the human brain as evidenced...
EIAH: Exercise-induced arterial hypoxemia EMG: Electromyography FEV1: Forced expiratory volume in one second FVC: Forced vital capacity MSNA: Muscle sympathetic nerve activity MVC: Maximal voluntary contraction O2: Oxygen PaCO2: Arterial partial pressure of carbon dioxide ...
A clinical study to assess efficacy and safety of daily administration of a nestorone/testosterone gel when administered in males,National Institutes of Health - Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD),Inte
which was reflected in actual population differences in intra-sexual competition29,30. In addition, we undertook an experimental design, in which males were controlled for age, body size and faecal hormone metabolites (testosterone and cortisol, see Methods), and were exposed to two social environme...
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One answer would be to perform vasectomies in males and tubal ligation in females, to be followed after maturity by ovariohysterectomy in females to prevent mammary cancer and pyometra. One possible disadvantage is that vasectomy does I believe it is important that we assess each situation indivi...