these results demonstrate that estrogen , androgen , and constant light induced anovulatory sterility are not associated with any overt change in the number or morphology of lh-rh immunoreactive fibers in the mbh , suggesting that the primary lesion responsible for the failure of normal estrous cyclicity in such animals resides in the systems responsible for regulating the activity of the lh-rh neurons rather than in the lh-rh neurons themselves .
C0020663
mbh
C0023610
lh-rh