Circadian Rhythm
Definition
Circadian rhythms are approximately 24-hour biological cycles driven by the suprachiasmatic nucleus and peripheral clocks that regulate sleep-wake patterns, hormone secretion, metabolism, and body temperature. Many peptide hormones including growth hormone, cortisol, and melatonin exhibit strong circadian secretion patterns. DSIP (delta sleep-inducing peptide) and Epithalon (which stimulates melatonin-producing pinealocytes) interact with circadian regulation.
Related Terms
Related Compounds
DSIP
A comprehensive review of Delta Sleep-Inducing Peptide (DSIP), a naturally occurring nonapeptide involved in sleep architecture modulation, circadian rhythm regulation, neuroendocrine function, stress adaptation, and antioxidant defense, including pharmacokinetics, safety profile, and dosing in research.
Read monographEpithalon
An in-depth review of Epithalon (Epitalon), a synthetic tetrapeptide based on the pineal gland peptide epithalamin, covering its role in telomerase activation, telomere elongation, anti-aging research, melatonin regulation, pharmacokinetics, and safety profile.
Read monographRelated Studies
Peptide promotes overcoming of the division limit in human somatic cells
Khavinson VKh, Bondarev IE, Butyugov AA · Bulletin of Experimental Biology and Medicine (2003)
The delta sleep inducing peptide (DSIP). Isolation, structure, and properties of the original sleep promoting substance
Schoenenberger GA, Monnier M · Pflügers Archiv: European Journal of Physiology (1977)