Patterns of spontaneous cortisol and growth hormone secretion in Rhesus monkeys during the sleep-waking cycle.
Jacoby-JH; Sassin-JF; Greenstein-M; Weitzman-ED
Neuroendocrinology 1974 Feb; 14(3-4):165-173
Plasma concentrations of cortisol (50237) and growth-hormone (9002726) were determined in samples obtained sequentially at 15 minute intervals for 12 hour night and 12 hour day sessions in juvenile male monkeys implanted with right atrial catheters. Electroencephalographic, electrooculographic, and electromyographic activity were recorded. Cortisol was secreted episodically, increasing in frequency and concentration during the latter portion of the night and early morning hours. Growth-hormone was also secreted episodically but bore no apparent relationship to either sleep stage or time of day.
NIOSH-Publication; NIOSH-Grant; Grants-other; Endocrine-system; Circadian-rhythms; Blood-chemistry
Division of Neurology Montefiore Hosp and Med Center Division of Neurology Bronx, N Y 10467
Other Occupational Concerns; Grants-other
Montefiore Hospital and Medical Center, New York, New York