[Transcriptome alteration in hippocampus under the treatment of tuftsin analog Selank].
Kolomin. T A TA; Agapova. T Iu TIu; Agniullin. Ia V IaV; Shram. S I SI; Shadrina. M I MI; Slominskiĭ. P A PA; Limborskaia. S A SA; Miasoedov. I F IF
Key Findings
- Selank (200 µg/kg intranasally) altered expression of 36 genes after one dose and 20 genes after a short course in rat hippocampus.
- Most affected genes code for plasma membrane or transmembrane proteins, suggesting influence on ion homeostasis.
- The authors propose that these molecular changes could modulate ion‑dependent processes involved in learning and memory.
Practical Outcomes
- For biohackers, this points to Selank as a candidate for cognitive enhancement, but the evidence is limited to gene expression changes in rats, not proven performance gains in humans. It suggests that low‑dose intranasal Selank might affect brain ion balance, but more research is needed before recommending a specific protocol or dosage for people.
Summary
A study in rats found that a single or short course of the peptide Selank, given through the nose, changes the activity of dozens of genes in the brain area important for memory. Many of these genes are linked to cell membrane proteins, hinting that Selank might help balance ions in brain cells, which could affect learning and memory processes.
Abstract
The effect of single and course administration of Selank (Thr-Lys-Pro-Arg-Pro-Gly-Pro) in the dose 200 microg/kg on the rat hippocampus transcriptional profile were studied using cDNA microarray technology. It was shown that mRNA levels of 36 genes changed more than 2-fold after a single intranasal Selank administration, and 20 genes--after course administration. It should be noted that most of them encode proteins associated with the plasma membrane (including transmembrane proteins). This suggests that Selank is able to regulate ion homeostasis of hippocampal cells and thereby modulate different ion-dependent processes, which include the processes of learning and memory formation.
Study Information
pubmed
2013
10.7868/s0044467713030052