Abstract
SUMMARY: The effects of testosterone propionate (TP) and of 17α-ethyl-19 nor-testosterone (ENT) on the submandibular glands, levator ani muscles and seminal vesicles of castrated mice have been compared. ENT restores submandibular weight and histology about as well as TP but has less effect on the levator ani muscle and much less effect on the seminal vesicles. Both steroids can act directly on the submandibular gland. It is suggested that the effect on the gland may be an indication of the 'anabolic' rather than the 'androgenic' potency of the steroids, and the possible use of this response for the assay of 'anabolic' steroids is discussed.