Human prolactin: 24-hour pattern with increased release during sleep - PubMed (original) (raw)

Human prolactin: 24-hour pattern with increased release during sleep

J F Sassin et al. Science. 1972.

Abstract

Human prolactin was measured in plasma by radioimmunoassay at 20 minute intervals for a 24-hour period in each of six normal adults, whose sleep-wake cycles were monitored polygraphically. A marked diurnal variation in plasma concentrations was demonstrated, with highest values during sleep; periods of episodic release occurred throughout the 24 hours.

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