the secretion of 5 alpha-pregnane-3,20-dione and 3 alpha-hydroxy-5 alpha-pregnan-20-one was increased by the injection of lh in either phase , but the ability of the ovaries to produce these steroids was low , suggesting that there was low 5 alpha-reductase activity in the ovaries of rats with delayed proestrus and pseudopregnant rats .
C0033006
pregnane
C0038317
steroids