the present demonstration that an individual steroid metabolic pattern in testicular incubates under certain conditions may be deliberately modified as expected , by long term gonadotrophin therapy , further supports our previous suggestion that the relative proportions of newly synthesized and recovered deltal4-3-oxo-c21-steroids in testicular incubates , especially 20a-dihydroprogesterone and 17a-hydroxyprogesterone , may well reflect the actual gonadotrophic stimulation in a particular individual at the time of testicular biopsy .
C0038317
steroid
C0033006
c21-steroids