...Paula A. Wuest; Anne W. Lucky The androgen-dependent flank organ of the Golden Syrian hamster has been used as a model for acne and hair growth. 1-cm silastic capsules of testosterone (T) were implanted subcutaneously into female hamsters. Serum levels of T remained relatively constant after 1 week...

...Marty E. Sawaya The human hair follicle cycles in active growth and resting phases controlled by a complex network of biochemical processes, yet to be fully understood. It is well known that hair follicles on scalp respond to androgens by a shortening of the anagen growth phase causing hairs...

...Jolanta B. Schmidt A broad range of hormones was determined in males and females with androgenic hair loss (AH). The androgens testosterone, androstenedione, dehydroepiandrosterone sulfate, 17-hydroxyprogesterone and sex hormone binding globulin were evaluated in 65 male and 46 female patients...

...Valerie A. Randall; M. Julie Thornton; Kazuto Hamada; Andrew G. Messenger Androgens are major regulators of human hair growth with paradoxically different effects on hair follicles depending on their body site. They stimulate terminal growth in many regions including the face, have no effect...