Abstract
Summary
The ovary of the mature rat undergoes some weight loss during the first 8 days after hypophysectomy due to follicle degeneration. Administration of 2.5 IU of NIH-P-S-7 prolactin twice daily from the second day after hypophysectomy causes a more rapid reduction in ovarian weight due to the regression of luteal bodies. The administration of 0.5, 2.5, or 7.5 μg NIH-LH-S-8 luteinizing hormone with prolactin did not influence this luteolysis.
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