DSIP
L-tryptophyl-L-alanyl-glycyl-glycyl-L-aspartyl-L-alanyl-L-seryl-glycyl-L-glutamic acid
DSIP is a naturally occurring nonapeptide identified in 1977 from rabbit cerebral venous blood, comprising nine amino acids in the sequence Trp-Ala-Gly-Gly-Asp-Ala-Ser-Gly-Glu. This linear, hydrophilic peptide maintains its endogenous structure without synthetic modifications, making it ideal for sleep regulation research, stress response modulation, and central nervous system function studies in controlled experimental settings.
Complete Research Database
Original Discovery Study
View StudySleep-promoting factor delta: isolation from rabbit brain and effects on sleep in rats
PRIMARY RESULTS
60-78% increase in delta wave sleep duration in rabbits for up to 6 hours
KEY FINDINGS
- •First identification of natural sleep-inducing peptide
- •Significant enhancement of deep sleep phases
- •No tolerance or dependency observed
Medical Disclaimer
DSIP is an investigational research compound not approved by the FDA for human therapeutic use. This information is for educational purposes only and should not be construed as medical advice. Any use should occur only under medical supervision in approved research settings.