Chemical Index to Fitness (Biochemical Correlates of Stress in Specialized Populations).
Final rept. Sep 74-Aug 75,
CALIFORNIA UNIV TORRANCE DEPT OF PSYCHIATRY
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A neuroendocrine study of sleep is reported, which examined the interrelationships of the nocturnal release of luteinizing hormone, follicle stimulating hormone, prolactin, and testosterone in normal young adult men. To further investigate the role of prolactin in testosterone secretion a dopamine blocking agent was administered to normal young adult men to selectively raise prolactin levels. Testosterone increased in a dose-related manner, along with prolactin levels, giving further evidence that prolactin plays an influential role in testosterone secretion in adult men. The third sleep study was directed toward investigating the regulatory mechanisms for sodium and water balance. The secretion patterns of antidiuretic hormone, aldosterone, prolactin, and serum sodium levels were studied. Both aldosterone and prolactin showed increasing blood levels throughout the night, suggesting that these two hormones may play a role in the diminished amount of urine secreted by the kidney at night.
- Anatomy and Physiology