Glossary
Bioregulator (Khavinson Peptide)
Khavinson bioregulators are ultra-short di- to tetrapeptides first derived from tissue extracts. Their origin, the DNA-binding idea and the evidence base.
Bioregulators — widely known as Khavinson peptides — are ultra-short peptides, typically two to four residues long (di-, tri- or tetrapeptides), that grew out of a Soviet-era research programme headed by Vladimir Khavinson at the St Petersburg Institute of Bioregulation and Gerontology. Generation one, the cytomedines, were crude peptide fractions isolated from animal tissue (thymus for Thymalin, pineal gland for Epithalamin). Generation two, the cytogens, are chemically defined synthetic sequences meant to replicate the active core: Epitalon (AEDG), Vilon (KE), Pinealon (EDR) and Cortagen (AEDP).
The proposed mechanism and its weak evidence
The hypothesis is an unusual one: the peptides are said to be small enough to reach the nucleus and attach to particular promoter sequences in double-stranded DNA, producing transcriptional effects specific to each tissue. Most supporting studies come from the group that originated the idea and appeared mainly in Russian-language journals; independent confirmation of the DNA-binding and lifespan results remains scarce. Even the product names reveal that design followed tissue of origin rather than a defined target: Cerluten (brain), Ventfort (vascular), Sigumir (cartilage).
From a chemistry standpoint they are simple to make, straightforward to confirm by MS and easily broken down by proteases, which explains why both sublingual and injectable formats exist.
Related terms and material
tripeptide · telomerase · preclinical. Reference material: Khavinson bioregulators, Epitalon, Thymalin. Further reading: the bioregulator catalog explained.