Prolactin involvement in regulation of testicular 5 alpha-reductase activity in the immature rat.


Treatment of intact immature (25-day-old) rats with bromoergocryptine (BR), which suppressed prolactin (Prl) secretion, decreased testicular 5 alpha-reductase activity, whereas treatment with Prl increased the enzyme activity in BR-treated animals. Serum luteinizing hormone (LH) concentrations were not reduced by BR treatment or elevated by Prl, suggesting… (More)


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