G Casale, G Carella, M. De Butte, P Nicola
Abstract
A circadian rhythm for beta-endorphin was observed by means of the cosinor method in aged subjects. The rhythm mesor is a little lower but its amplitude is more extended than in young subjects. The confidence intervals of the acrophases of the two groups are superimposable with a timing in the morning.
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A circadian rhythm for beta-endorphin was observed by means of the cosinor method in aged subjects. The rhythm mesor is a little lower but its amplitude is more extended than in young subjects. The confidence intervals of the acrophases of the two groups are superimposable with a timing in the morning.
Key concepts: Circadian rhythm, Rhythm, Morning, Chronobiology, Infradian rhythm, BETA (programming language), Internal medicine, Endocrinology