DSIP (Delta-Sleep Inducing Peptide)

Product | DSIP (Delta-Sleep Inducing Peptide)

DSIP (Delta-Sleep Inducing Peptide)

DSIP (δ-Sleep Inducing Peptide) is a synthetic, naturally occurring amphiphilic nonapeptide (Trp-Ala-Gly-Gly-Asp-Ala-Ser-Gly-Glu) engineered for central nervous system, electroencephalographic (EEG) rhythm, and neuro-endocrine research. Operating as a neuromodulator of slow-wave δ-sleep architecture, DSIP normalizes hypothalamic-pituitary-adrenal (HPA) axis stress dynamics by dampening basal ACTH release and mitigating oxidative cellular injury.

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What is DSIP (δ-Sleep Inducing Peptide)?

DSIP (known chemically as δ-Sleep Inducing Peptide, Delta-Sleep Inducing Peptide, or Emideltide) is a naturally occurring, highly conserved nonapeptide isolated from the hemodialysate of sleeping mammals during early slow-wave sleep research. Structurally characterized by its linear nine amino acid sequence (Trp-Ala-Gly-Gly-Asp-Ala-Ser-Gly-Glu), DSIP research indicates it functions as an endogenous neuromodulator capable of crossing plasma membranes and the blood-brain barrier without enzymatic degradation. Batch-verified for high analytical purity at Modern Aminos, DSIP is supplied as a 10MG lyophilized reference powder sealed in a 2R (3mL) glass vial. Researchers investigating slow-wave electroencephalographic (δ-wave) spindle generation, circadian neuro-endocrine synchronization, and stress-induced glucocorticoid buffering utilize DSIP alongside complementary circadian and neuropeptidergic reference standards available on the site, such as the Melatonin Based Amino Blend (20ML), Epithalon, and Selank.

Chemical and Molecular Data

Compound Name	DSIP (δ-Sleep Inducing Peptide)
Quantity / Formats Offered	10MG Lyophilized Powder in 2R (3ML) Glass Vial
Peptide Sequence	`Trp-Ala-Gly-Gly-Asp-Ala-Ser-Gly-Glu` (WAGGDASGE)
Synonyms / Alt Names	Delta-sleep-inducing peptide, Emideltide, DSIP Nonapeptide
CAS Number	62568-57-4
Chemical Formula	C₃₅H₄₈N₁₀O₁₅
Molecular Weight	848.81 g/mol
IUPAC Name	L-tryptophyl-L-alanylglycylglycyl-L-α-aspartyl-L-alanyl-L-seryl-glycyl-L-glutamic acid
InChIKey	NBSPWWKZDMNLMW-UHFFFAOYSA-N
SMILES Code	`CC(C(=O)NCC(=O)NCC(=O)NC(CC(=O)O)C(=O)NC(C)C(=O)NC(CO)C(=O)NCC(=O)NC(CCC(=O)O)C(=O)O)NC(=O)C(CC1=CNC2=CC=CC=C21)N`

What are the Mechanisms of Action?

The biochemical pathways and cellular targets:

Slow-Wave Electroencephalographic (δ-Wave) Modulation: Research demonstrates that DSIP may act on central thalamic and cortical neural networks to potentiate low-frequency, high-voltage delta-wave (0.5–4 Hz) spindle activity. It promotes natural slow-wave sleep architecture without suppressing REM sleep phases or altering baseline circadian cycle frequencies.
HPA Axis Stabilization & ACTH Release Suppression: DSIP normalizes stress responses in the hypothalamic-pituitary-adrenal (HPA) axis. By binding specific neuropeptide receptors in the hypothalamus, DSIP attenuates basal and stress-induced secretion of adrenocorticotropic hormone (ACTH) and corticosterone, preventing hyper-cortisolemic tissue degradation.
Central Monoaminergic & Antioxidant Crosstalk: DSIP modulates central GABAergic, NMDA, and serotonergic neurotransmitter activity. Furthermore, in neuronal cell culture assays subjected to hypoxia, DSIP acts as an endogenous free-radical scavenger, preventing lipid peroxidation and restoring oxidative phosphorylation efficiency.

What do Preclinical & Academic Studies Show for DSIP?

When evaluating research efficacy and published scientific literature:

EEG Delta-Wave Generation & Endocrine Kinetics (PubMed): Peer-reviewed research cataloged on PubMed (PMID: 6105084) confirms that DSIP administration induces significant, dose-dependent increases in slow-wave delta-wave sleep EEG recording profiles while stabilizing plasma luteinizing hormone (LH) and somatotropin pulses.
Neuropeptide HPA Axis Buffering & Stress Adaptation (PMC): Comprehensive biomedical reviews archived in PMC (PMC8540866) document DSIP’s capacity to protect myocardial and neuronal cell lines against acute emotional and oxidative stress through HPA axis normalization.
Chemical Directory & Structure Verification (PubChem): Official structural characterization maintained on PubChem verifies the molecular weight (848.81 g/mol), nonapeptide sequence integrity, and HPLC mass spectrometry profiles of CAS 62568-57-4.

How does DSIP compare to other compounds?

To evaluate neuropeptide targets, slow-wave EEG induction, and circadian pathways, researchers compare DSIP against alternative reference formulations available at Modern Aminos:

Compound / Reference	Chemical Class & Structure	Core Mechanism of Action	Research Focus & Profile
DSIP (δ-Sleep Inducing Peptide)	Synthetic Amphiphilic Nonapeptide (Trp-Ala-Gly-Gly-Asp-Ala-Ser-Gly-Glu)	Potentiates thalamic slow-wave δ-wave (0.5–4 Hz) EEG spindles and suppresses stress-induced HPA axis ACTH release	Focuses on slow-wave sleep architecture, neuro-endocrine HPA axis stabilization, and central anti-stress/antioxidant defense
Melatonin Based Amino Blend (20ML)	Aqueous Indoleamine & Amino Acid Liquid Complex	Agonizes suprachiasmatic nucleus MT1/MT2 receptors to regulate circadian phase shifts and dark-cycle signaling	Focuses on immediate circadian alignment, pineal gland receptor stimulation, and systemic free-radical scavenging in liquid format
Epithalon	Synthetic Tetrapeptide Bioregulator (Ala-Glu-Asp-Gly)	Induces telomerase enzyme activity and elongation in somatic cell lines while resetting pineal gland output	Focuses on cellular senescence, telomere length restoration, and long-term pineal circadian rhythm regulation
Selank	Tuftsin-Derived Synthetic Heptapeptide	Stabilizes central enkephalins, increases BDNF expression, and modulates GABAergic neurotransmission	Focuses on non-sedating emotional stress buffering, cognitive activation, and immunomodulatory neuropeptide research

Frequently Asked Questions (FAQs)

1. Is Modern Aminos a reliable place to buy DSIP (Delta-Sleep Inducing Peptide)?

Yes, Modern Aminos is a highly trusted vendor for high-purity research chemicals and reference peptides. Every batch of DSIP undergoes strict third-party analytical testing (including HPLC and Mass Spectrometry) to verify minimum 98%+ purity, correct nonapeptide sequence identity (WAGGDASGE), and complete absence of unreacted amino acid fragments or heavy metals.

2. What is the amino acid sequence and molecular structure of DSIP?

DSIP is an amphiphilic nonapeptide consisting of nine amino acids: L-tryptophyl-L-alanylglycylglycyl-L-α-aspartyl-L-alanyl-L-seryl-glycyl-L-glutamic acid (Trp-Ala-Gly-Gly-Asp-Ala-Ser-Gly-Glu). Its chemical formula is C₃₅H₄₈N₁₀O₁₅ with a molecular weight of 848.81 g/mol.

3. How does DSIP promote delta-wave slow-wave sleep in EEG models?

DSIP interacts with central neuropeptide receptors in the thalamus and hypothalamus to synchronize cortical neuron firing rates, selectively increasing low-frequency delta-wave (0.5–4 Hz) power density on EEG recordings without suppressing REM phase intervals.

4. What role does DSIP play in HPA axis stress modulation and ACTH secretion?

The HPA axis triggers excessive adrenocorticotropic hormone (ACTH) and corticosterone release. DSIP dampens CRH-mediated signaling, restoring basal ACTH levels and protecting cells from hyper-cortisolemic damage.

5. How should lyophilized DSIP reference powder be applied in laboratory settings?

Lyophilized DSIP dissolves rapidly in reagent solutions designed with preservatives.

6. How does DSIP compare to the Amino Acid Blends in circadian research?

The Amino Acid Blends work through MT1/MT2 suprachiasmatic receptors to regulate light-dark circadian phase shifts in a pre-solubilized liquid matrix. DSIP is a lyophilized neuropeptide that specifically modulates slow-wave δ-wave sleep architecture and HPA axis stress responses.

7. Does DSIP induce cellular dependence in preclinical research models?

Studies indicate that DSIP does not bind direct sedative GABA-A benzodiazepine sites. Because it functions as a physiological neuromodulator, repeated administration in animal assays does not trigger receptor downregulation, tolerance, or withdrawal rebound effects.

8. What are the recommended storage parameters for DSIP vials?

Unopened lyophilized DSIP vials should be stored frozen at -20°C for long-term preservation. Protect from direct light, heat, and moisture. Once transformed into an aqueous solution, store refrigerated between 2°C and 8°C and use within designated laboratory testing windows.

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