[Pharmacological correction of memory impairment caused by a complex extremal action in mice with bilateral ligation of common carotid arteries].
Iasnetsov. V V VV; Ivanov. Iu V IuV
Key Findings
- Semax (and mexidol) increased survival of mice after bilateral carotid artery ligation, a model of severe cerebral hypoperfusion.
- Semax almost completely prevented retrograde amnesia in mice subjected to a combined stress of cold water swimming and wheel rotation.
- Semax extended the lifespan of these mice when tested in an altitude (low‑oxygen) chamber.
Practical Outcomes
- For biohackers, semax could be considered a candidate for supporting brain resilience during hypoxic or high‑stress situations, but the evidence is limited to animal models. Until human data are available, any use should be cautious, low‑dose, and monitored for side effects. It does not yet constitute a proven protocol for longevity or cognitive performance enhancement.
Summary
In a mouse study where blood flow to the brain was severely reduced, the peptide semax helped the animals survive longer, kept their memory intact during a tough cold-water swim with extra stress, and let them live longer in a low‑oxygen chamber. These results suggest semax may protect the brain under extreme stress, but the work was done in mice, not people.
Abstract
Semax and mexidol significantly increase the survival of white mongrel male mice upon bilateral ligation of common carotid arteries. Semax virtually completely prevented retrograde amnesia development in ligated mice under conditions of a complex extremal action (emaciating swim in cold water with simultaneous wheel rotation) and increased the lifetime of these animals in altitude test chamber.
Study Information
pubmed
2004