Abstract
Summary
In adult (not senile) rats injected during 8 to 22 days with 10 or 20 units per day of prolactin the weights of testes were not diminished. By this dosage the weight of Cowper's glands are apparently decreased, and that of the adrenals increased. In relatively high dosage during similar periods follicle-stimulating hormone (+ some thyreotropic) and Prolan are found, confirming earlier work of others, to have almost negligible power to cause an increase of size in such testes. Prolan led to marked enlargement of the seminal vesicles and prostate, and in the heavy dosage used it was apparently adverse to body growth.
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