the striking ( greater than 30-fold ) responses of medium-sized and healthy preovulatory follicles to insulin were not attributable to the presence or absence of atresia or to a selective inhibition of progesterone 's catabolism to 20 alpha-dihydroprogesterone , since 20 alpha-dihydroprogesterone production was also markedly increased in response to insulin .
C0033308
progesterone 's
C0012311
20 alpha-dihydroprogesterone