What is DSIP?

DSIP (Delta Sleep-Inducing Peptide) is a synthetic nonapeptide with the sequence Trp–Ala–Gly–Gly–Asp–Ala–Ser–Gly–Glu, constituting a stable fragment of an endogenous peptide isolated from the cerebral venous blood of mammals. This compound was isolated and characterised in the 1970s as part of research into peptides associated with the regulation of electroencephalographic activity. Due to its resistance to enzymatic degradation and good solubility in an aqueous environment, DSIP has become a useful model for research into peptide signalling in the nervous system.

In experimental studies, DSIP has been used to analyse mechanisms related to central nervous system homeostasis, neuronal activity, and cellular response to stimulation. Its effect on the modulation of the expression of factors related to neuromodulatory pathways, as well as on processes occurring in in vitro and in vivo models, has been described. Attention has been drawn to its interactions with neurotransmitter systems and its indirect influence on adaptive processes under experimental conditions.

Due to its precisely defined chemical structure and high reproducibility of observed biological effects in preclinical models, DSIP is used as a research tool in molecular biology, neurobiology and experimental pharmacology. In scientific literature, it is also sometimes used as a reference peptide for evaluating neuromodulatory processes and for validating analytical methods used in the study of short bioactive peptides. The preparation is intended exclusively for research work.

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Products in this category are not medicines, foodstuffs or dietary supplements. The products are classified as chemical reagents/reference materials authorised for marketing within the European Union and may be used exclusively for laboratory scientific research.