Delta-sleep-inducing peptide (DSIP) is a neuropeptide with amino acid sequence Trp-Ala-Gly-Gly-Asp-Ala-Ser-Gly-Glu and molecular mass 848.81 g/mol. DSIP occurs in both free and bound forms in the hypothalamus, limbic system and pituitary as well as various peripheral organs, tissues and body fluids. In the pituitary it co-localises with many peptide and non-peptide mediators such as corticotropin-like intermediate peptide (CLIP), adrenocorticotrophic hormone (ACTH), melanocyte-stimulating hormone (MSH), thyroid-stimulating hormone (TSH) and melanin concentrating hormone (MCH). Delta-sleep-inducing peptide is abundant in the gut secretory cells and in the pancreas where it co-localises with glucagon.
A nonapeptide that is found in neurons, peripheral organs, and plasma. This neuropeptide induces mainly delta sleep in mammals. In addition to sleep, the peptide has been observed to affect electrophysiological activity, neurotransmitter levels in the brain, circadian and locomotor patterns, hormonal levels, psychological performance, and the activity of neuropharmacological drugs including their withdrawal.
Can restore disturbed sleep patterns;Can promote LH and GH release;Can reduce persistent/chronic pain;Can modulate cortisol
Delta sleep-inducing peptide (DSIP) has several physiological effects in addition to its ability to promote sleep in animals. It is also involved in neuroendocrine regulation and release of anterior pituitary hormones. In rodents and humans, Delta sleep-inducing peptide (DSIP) influence in the secretion of adrenocorticotropic hormone (ACTH), luteinizing hormone (LH) and growth hormone (GH). It also plays a role in the regulation of the circadian rhythms and and can help restore disturbed patterns of sleep..
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