The effects of delta sleep-inducing peptide on the intensity of lipid peroxidation and xanthine oxidase activity in rat tissues during cold stress.
Bondarenko. T I TI; Milyutina. N P NP; Shustanova. T A TA; Mikhaleva. I I II
Key Findings
- DSIP (12 µg/100 g i.p.) reduced diene conjugates and Schiff bases (lipid peroxidation markers) in rat liver and brain.
- In unstressed rats, DSIP did not alter xanthine oxidase activity in those tissues.
- When rats faced cold stress, pre‑treatment with DSIP lowered both xanthine oxidase activity and lipid‑peroxidation products compared to stressed rats without DSIP.
Practical Outcomes
- The study hints that DSIP might act as an antioxidant or stress‑protective agent in animals, but there’s no human data, optimal dosing, or safety information. Biohackers should view this as early, animal‑only evidence and not a ready‑to‑use protocol for longevity or performance.
Summary
In rats, giving delta sleep‑inducing peptide (DSIP) before a three‑day cold stress lowered signs of oxidative damage and the activity of an enzyme linked to stress, especially in the liver and brain. In normal rats, DSIP didn't change that enzyme's activity but still reduced some markers of lipid damage.
Abstract
Exogenous delta sleep-inducing peptide given i.p. to intact rats at a dose of 12 microg/100 g decreased the levels of diene conjugates and Schiff bases in liver and brain tissues and had no effect on xanthine oxidase activity in these tissues. Cold stress was accompanied by increases in xanthine oxidase activity in rat liver and brain, with a consequent accumulation of diene conjugates and Schiff bases, as compared with intact animals. Preliminary administration of delta sleep-inducing peptide before three days of cold stress led to decreases in xanthine oxidase activity and lipid peroxidation products in the liver and brain, as compared with values in stressed rats. The protective effect of delta sleep-inducing peptide in stress is discussed.
Study Information
pubmed
2001
10.1023/a:1026686516768