Abstract
Summary
Extirpation of thymus within 24 hr after birth increased the sensitivity of rats to steroid hormones injected at the age of 5 days. In 56-day-old males the atrophy of testis and of accessory sex tissues produced by a single injection of estradiol benzoate was more severe in thymectomized animals than in sham-operated controls. In female rats the atrophy produced by injecting the same steroid resulted in greater atrophy of the uterus in thymectomized animals than in controls.
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