dispersed adrenal cells were challenged with the cortisol precursor steroids ( all at 10 ( -5 ) moles/l ) pregnenolone ( pe ) , 17 alpha hydroxypregnenolone ( 17-oh pe ) , 17 alpha-hydroxyprogesterone ( 17-po ) , and 11 deoxycortisol or 1-24 acth ( 100 ng/1 ) in the absence and presence of increasing concentrations of ca ( 10 ( -5 ) to 10 ( -4 ) moles/l ) .
C0373704
pregnenolone
C0376260
17-oh