DSIP

Lyophilized DSIP Powder

Overview

Delta Sleep-Inducing Peptide (DSIP) is an endogenous nonapeptide first isolated from rabbit brain that plays a key role in sleep regulation, analgesia, and stress-response modulation. DSIP’s ability to normalize electroencephalographic patterns has made it a staple in sleep-architecture research, while its analgesic and HPA-axis dampening effects provide a versatile tool for neuroendocrine studies.

Key Features

• Sleep Architecture Modulation: Normalizes EEG slow-wave activity, improving both sleep onset and maintenance in rodent and human models (PubMed)

• Analgesic Properties: Demonstrates significant pain threshold elevation in thermal and mechanical nociception assays (PMCResearchGate)

• HPA-Axis Regulation: Attenuates stress-induced cortisol release, enabling precise studies of neuroendocrine feedback loops (PubMedPubMed)

• Neuroprotective Action: Protects against glutamate-induced excitotoxicity in in vitro neuronal cultures (PMCFrontiers)

• Proteolytic Stability: Exhibits extended half-life (~3 h) in serum, facilitating longer incubation and kinetic studies (PubMedPMC)

Applications

• Sleep Research: Rodent and human tissue assays probing slow-wave sleep mechanisms (PMC)

• Pain Models: Evaluation of novel analgesics and nociceptive pathways (PubMed)

• Stress-Response Studies: HPA-axis challenge protocols in vivo and ex vivo (Frontiers)

• Chronobiology: Circadian rhythm entrainment and phase-shift experiments (ResearchGate)

• Neuroendocrine Profiling: Pituitary hormone release and feedback assays (PubMed)