Autoradiographic localization of binding sites for the delta sleep-inducing peptide ( [3H]DSIP) on neurons of cultured rat brainstem.
Hösli. E E; Schoenenberger. G A GA; Hösli. L L
Key Findings
- DSIP binds to small, medium‑sized, and large neurons in the rat brainstem.
- No DSIP binding was observed on glial (support) cells.
- Adding non‑radioactive DSIP reduces the binding of the radioactive version, confirming the interaction is specific.
Practical Outcomes
- This study provides basic proof that DSIP likely works through receptors on brainstem neurons, which supports its reputation as a sleep‑modulating peptide. However, it offers no dosage guidance, safety data, or direct protocol for human use, so biohackers should view it as early‑stage evidence rather than a ready‑to‑apply method.
Summary
Researchers used a radioactive version of delta sleep‑inducing peptide (DSIP) to see where it sticks in rat brainstem cells. They found it attaches to neurons of all sizes but not to support cells, and the binding can be blocked by regular (unlabeled) DSIP, suggesting specific receptors are present.
Abstract
Binding of the delta sleep-inducing peptide (DSIP) was studied in cultures of rat brainstem by means of autoradiography. Binding sites for [3H]DSIP were observed on small, medium-sized and large brainstem neurons but not on glial cells. Addition of unlabeled DSIP inhibited or markedly reduced binding of [3H]DSIP. It is suggested that brainstem neurons might possess receptors for this sleep-inducing peptide.
Study Information
pubmed
1983
1983-11-21T00:00:00.000Z
10.1016/0006-8993(83)90213-5
10
16