Description
DSIP
Synthetic nonapeptide for in vitro research on sleep architecture modulation, neuroendocrine homeostasis, and antioxidant enzymatic activity
Overview & Mechanism of Action (In Vitro)
DSIP (Delta Sleep-Inducing Peptide) is a synthetic nonapeptide with the sequence (Trp-Ala-Gly-Gly-Asp-Ala-Ser-Gly-Glu), originally isolated from mammalian cerebral venous blood during induced slow-wave sleep. In biochemical, neurobiological, and endocrinological research, it serves as a specialized molecular model for studying neuromodulatory processes and physiological stress regulation:
- Modulation of GABAergic & Glutamatergic Neurotransmission: Investigating inhibitory and excitatory synaptic transmission in primary neuronal cultures, focusing on the coordination of slow-wave (delta) oscillations in neural networks.
- Neuroendocrine HPA Axis Regulation: Analyzing the modulation of corticotropin (ACTH), luteinizing hormone (LH), and somatotropin (GH) release in isolated pituitary cell assays.
- Antioxidant & Cytoprotective Enzymatic Signaling: Monitoring the activation of superoxide dismutase (SOD) and glutathione peroxidase (GPx), alongside the reduction of lipid peroxidation markers in cellular models exposed to oxidative stress.
In laboratory media, as a linear unprotected nonapeptide, it requires standard stability monitoring and protection against endogenous peptidase degradation.
Technical & Chemical Specifications
- Classification: Research Neuropeptide / Neuromodulatory Regulator
- Amino Acid Sequence: Trp-Ala-Gly-Gly-Asp-Ala-Ser-Gly-Glu
- Form: Sterile lyophilized white powder (cake)
- Molecular Weight Identification: Confirmed via Mass Spectrometry (MS)
- Recommended Reconstitution Solvent: Sterile bacteriostatic water or phosphate-buffered saline (PBS)
- Storage Conditions: Store long-term at -20 °C in a dry, dark environment. Following reconstitution, keep refrigerated at 2–8 °C and utilize within standard experimental protocol timelines.
Scientific References & Literature
- Schoenenberger, G. A., & Monnier, M. Characterization of a delta-electroencephalogram(-sleep)-inducing peptide. Proceedings of the National Academy of Sciences, 1977.
- Graf, M. V., & Kastin, A. J. Delta-sleep-inducing peptide (DSIP): A review of its physiological and biochemical actions. Peptides, 1984.
- Kovalzon, V. M., & Strekalova, T. V. Delta sleep-inducing peptide (DSIP): A still unresolved riddle. Journal of Neurochemistry, 2006.
- Prudchenko, I. A., et al. Synthetic analogs of DSIP and their biological stability in model systems. Russian Journal of Bioorganic Chemistry, 1993.
Legal Disclaimer & Terms of Purchase
This product is classified and supplied strictly for laboratory, scientific, and in vitro research purposes only (Research Use Only – RUO). This compound is not a drug, medicine, dietary supplement, cosmetic product, or substance intended for human or veterinary consumption, direct administration, injection, or diagnostic procedures.
By placing an order, the purchaser explicitly confirms that they are at least 18 years of age, possess the requisite professional qualifications and laboratory equipment to safely handle research materials, and are fully conversant with all relevant safety protocols for managing research substances. The seller assumes no liability for any use contrary to these terms.




