5 結果
BACKGROUND
There is up to a 50-fold variation in control subjects in current assays of 5alpha-reductase activity which makes interpretation difficult. It was therefore attempted in this study to establish an assay method which produced stable 5alpha-reductase activity in long-term subcultured
The suggestion has been made that prenatal exposure to synthetic progestogens contributes to an increased incidence of hypospadias. One potential mechanism for such an effect might be inhibition of 5 alpha-reductase, a key enzyme in normal male sexual differentiation. We have examined the effect of
Androgens stimulate the development and growth of the male external genitalia. Because hypospadias is the most common congenital defect of the male urethra and because in most cases the cause of this malformation is unknown, we examined the hypothesis that the etiology of the severe forms of this
Finasteride is an inhibitor of 5-α-reductase used against male androgenetic alopecia (AGA). Reported side effects of finasteride comprise sexual dysfunction including erectile dysfunction, male infertility, and loss of libido. Recently these effects were described as persistent in some subjects.
The metabolism of 4-[1,2-3H]androstene-3,17-dione in the prepuce, axillary skin and skin from the arm was investigated in 27 boys operated for phimosis (controls) and 13 unselected boys with hypospadias (a congenital defect of the male urethra). In all types of skin investigated, androstenedione was