[Phenomenon of hypertrophy of the testes after amputation of the lower incisors in rats].

Repeated amputation of the lower incisors in rats carried out at the early postnatal on togenesis causes an enlargement of the salivary glands and hypertrophy of the testis with the phenomena of acceleration of their differentiation. Hypertrophy of the testes withthe mentioned action was much greater (76%) than in the case of unilateral castration at the same age. In adult animals repeated amputation of the lower incisors caused hypertrophy of the salivary glands, but failed to influence the hypertrophy of the testes.