Abstract
Summary
The male hormone, testosterone propionate, inhibited the oestrous rhythm of the rabbit uterus. This was manifested by a disturbed rhythm, a lowered height of contraction or complete quiescence. Such inhibitions appeared in animals whose uteri showed but little or no progestational response. During the period of quiescence, pituitrin failed to elicit a strong contraction. Testosterone prevented castration atrophy in the rabbit's uterus with or without minimal progestational changes.
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