Abstract
1. 1. A 1hr exposure to 20 μg/ml of the protein synthesis inhibitor, cycloheximide (CHX), essentially abolished secretion of testosterone (T) by bullfrog ovarian fragments during simultaneous administration of homologous pituitary extract and CHX. 2. 2. Removal of CHX from the medium after 4 hr of treatment reversed the inhibition of T secretion, allowing it to attain control levels. 3. 3. Pre-exposure of ovarian fragments to CHX was not required to obtain an inhibition of T secretion. 4. 4. These data supported the hypothesis that protein synthesis is required for acute and chronic gonadotropic stimulation of steroidogenesis by the bullfrog ovary.
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