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We have shown previously that testosterone concentration in the blood serum of Brown Norway rat becomes reduced with aging, and that this results from reduced testosterone production by individual Leydig cells. Herein we examine the effects of caloric restriction (CR), an intervention shown to delay or inhibit age-associated pathologic and biologic changes in a number of systems and organisms, on...
Aging in men is associated with a decline in trophic factors such as testosterone (T), alterations in body composition and impaired energy and body weight regulation. We performed studies to investigate the mechanisms underlying age-related changes in the neuroendocrine control of testis function, body composition, food intake and body weight in the Brown Norway (BN) rat. We found that similar to...
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