[Peptide therapy of sleep disorders in neurotic rats].
Aĭrapetiants. M G MG; Gekht. K K; Oeme. P P; Kruglikov. R I RI; Kolomeĭtseva. I A IA
Key Findings
- Chronic stress in rats caused anxiety, faster heart rate, higher blood pressure, and poorer deep sleep.
- Injecting substance P, eledoisin hexapeptide, and delta‑sleep peptide (250 µg/kg, 100‑200 µg/kg, and 10 µg/kg respectively) improved behavior and restored deep‑sleep quantity and quality.
- Calipnon sped up sleep onset, while delta‑sleep peptide lengthened total sleep time.
Practical Outcomes
- The results suggest that certain neuropeptides might be useful for improving sleep under stress, but because the work is limited to rats, biohackers should treat it as preliminary evidence. No safe human dosing or delivery method is established, so any experimentation would be highly experimental and risky.
Summary
In stressed rats, several peptides—including substance P, eledoisin, and a delta‑sleep peptide—helped calm behavior, lower heart rate and blood pressure, and improve both the amount and quality of deep sleep. The study shows these compounds can reverse stress‑induced sleep problems in animals, but it does not provide human data or clear dosing guidance for people.
Abstract
As a result of chronic stress, anxiety appeared in the rats behaviour, motor activity increased, heart rate quickened, blood pressure raised, conditioned instrumental alimentary reflexes missed, the duration of deep phases of sleep lowered, time of falling asleep became longer, the number of awakening increased. The change in quantitative characteristics of sleep was accompanied by its worsening, especially of rapid sleep. Administration of substance P (SP) eledoisin hexopeptide (EH) (250 mcg/kg), 100-200 mcg/kg of delta sleep peptide and 10 mcg/kg of ethylcrotyl barbiturate improved the rats behaviour and sleep parameters. Calipnon accelerated falling asleep. Delta sleep peptide increased sleep duration. SP and EH restored not only the quantitative characteristics of deep phases of sleep but greatly improved their quality: lowered the blood pressure disrupted tachycardia, normalized the conditioned activity.
Study Information
pubmed
1983