neither had they any correlation with intratesticular testosterone , 5 alpha-dihydrotestosterone , androstenedione , progesterone , 17-hydroxyprogesterone or pregnenolone concentrations , which may be due to the fact that lh receptors are confined to leydig cells , whereas steroids may be unevenly distributed in the different cells of the testis .
C0033308
progesterone
C0020387
17-hydroxyprogesterone