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Leydig cells release a class of hormones called androgens (19-carbon steroids). [8] They secrete testosterone, androstenedione and dehydroepiandrosterone (DHEA), when stimulated by the luteinizing hormone (LH), which is released from the anterior pituitary in response to gonadotropin releasing hormone which in turn is released by the hypothalamus.
Sex pheromones are a special type of olfactory signal, produced to attract the opposite sex, to encourage mating or to perform some other function closely related to sexual reproduction. While humans are highly dependent upon visual cues, smells can also play a role in sociosexual behaviors. An inherent difficulty in studying human pheromones ...
[36] [41] Based on reports of 5α-reductase type 2 deficiency in males and the effectiveness of 5α-reductase inhibitors for hirsutism in women, reduced body and/or facial hair growth is a likely potential side effect of these drugs in men. [13] [16] There are far fewer studies evaluating the side effects of 5α-reductase inhibitors in women.
Most people just think of men when they hear testosterone, but the primary male sex hormone is produced in women too (in the ovaries, in fact) and it turns out that more of it is released ...
Plasma levels of DHEA in adult men are 10 to 25 nM, in premenopausal women are 5 to 30 nM, and in postmenopausal women are 2 to 20 nM. [25] Conversely, DHEA-S levels are an order of magnitude higher at 1–10 μM. [25] Levels of DHEA and DHEA-S decline to the lower nanomolar and micromolar ranges in men and women aged 60 to 80 years. [25]
Androstenedione is a precursor of testosterone and other androgens, as well as of estrogens like estrone, in the body. In addition to functioning as an endogenous prohormone, androstenedione also has weak androgenic activity in its own right. Androstenedione has been found to possess some estrogenic activity, similarly to other DHEA metabolites ...
Newly produced smegma has a smooth, moist texture. It is thought to be rich in squalene [11] and contain prostatic and seminal secretions, desquamated epithelial cells, and the mucin content of the urethral glands of Littré. [9] Smegma contains cathepsin B, lysozymes, [12] chymotrypsin, neutrophil elastase and cytokines, which aid the immune ...
Androstenediol is a direct metabolite of the most abundant steroid produced by the human adrenal cortex, DHEA.It is less androgenic than the related compound, Δ 4-androstenediol, and has been found to stimulate the immune system.