Cortagen
| Category | Compounds |
|---|---|
| Also known as | Cortex Bioregulator, AEDG-related Cortex Peptide |
| Last updated | 2026-04-14 |
| Reading time | 3 min read |
| Tags | khavinson-peptidecortexshort-peptidelongevityresearch |
Overview
Cortagen is a short peptide in the family of Khavinson bioregulators developed at the St. Petersburg Institute of Bioregulation and Gerontology. Within that framework, each peptide is assigned to a specific organ system — Cortagen is associated with cerebral cortex regulation. The rationale is that tissue-specific peptide extracts shown to produce effects in aged or stressed animals can be distilled to short synthetic peptides with comparable activity.
The parent cortex preparation (Cortexin) has a long history of clinical use in Russia for neurological conditions, and Cortagen is presented as a defined short peptide extract or analog of that biology. In practice, researchers outside Russia encounter Cortagen primarily through its catalog entries and discussion in nootropic and longevity communities.
It is routinely discussed alongside other Khavinson peptides including Pinealon, Livagen, Vilon, Vesugen, and the longer pineal peptide Epitalon. Related thymic short-peptide research includes Thymalin and Thymulin.
Structure / Chemistry
Cortagen is typically described as a tetrapeptide (Ala-Glu-Asp-Pro, AEDP) within the Khavinson short-peptide framework, though some sources describe alternative short sequences or related peptide mixtures. As with other Khavinson peptides it is small and unmodified.
Mechanism of Action
Proposed activities include modulation of gene expression related to cortical neuron function, antioxidant effects, and neuroprotection. The Khavinson model proposes direct DNA-sequence interactions as the basis for tissue specificity; independent mechanistic validation remains limited compared to well-studied signaling peptides.
Research Summary
| Area | Finding | Reference |
|---|---|---|
| Cognition | Behavioral effects in aged rodent cognition | Khavinson et al., Bull Exp Biol Med reports |
| Gene regulation | Proposed sequence-specific gene modulation | Khavinson et al., Mol Biol 2012 |
| Neuroprotection | Protection in neuronal injury models | Russian research group reports |
| Class framework | Organ-targeted short peptide bioregulators | Anisimov & Khavinson, Interdisc Top Gerontol 2010 |
| Clinical context | Parent Cortexin use in neurological conditions | Russian clinical literature |
Pharmacokinetics
Specific human pharmacokinetic data on Cortagen in English-language publications are limited. Research use commonly employs subcutaneous or intranasal administration. Dosing and half-life information referenced here is drawn from analogous Khavinson peptides rather than definitive Cortagen pharmacokinetic studies.
Common Discussion Topics
- Plausibility and evidence base for tissue-specific short peptide bioregulation.
- Relationship to the larger Cortexin preparation.
- Translation of rodent cognitive findings to humans.
- Stacking with other Khavinson bioregulators in longevity protocols.
- Availability and quality variability in the research-peptide market.
Related Compounds
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Related entries
- Epithalon— A synthetic tetrapeptide studied for telomerase activation, pineal gland regulation, and lifespan extension in animal models, based on decades of research by Vladimir Khavinson at the St. Petersburg Institute of Bioregulation and Gerontology.
- Livagen— Livagen is a Khavinson-class short peptide assigned in the bioregulator framework to hepatic function and studied in aging and chromatin research.
- Pinealon— Pinealon is a Khavinson-class short peptide (Glu-Asp-Arg) associated with pineal and brain bioregulatory research in longevity models.
- Vesugen— Vesugen is a Khavinson-class short peptide associated in the bioregulator framework with vascular wall function and endothelial research.
- Vilon— Vilon is the Khavinson dipeptide Lys-Glu, studied in immune and longevity research contexts within the short-peptide bioregulator framework.