Overview
Following subcutaneous or intramuscular administration, Cortagen enters systemic circulation with rapid distribution kinetics typical of small peptides (estimated Vd consistent with extracellular fluid compartments). It crosses the blood-brain barrier to a limited degree, likely via adsorptive transcytosis. Tissue specificity is thought to arise not from receptor selectivity but from differential chromatin accessibility in target cell types — cortical neurons and immune progenitors exhibit open chromatin states at the relevant promoter motifs. Clearance occurs rapidly through renal filtration and peptidase activity, necessitating short but repeated dosing courses to achieve cumulative epigenetic effects.
Proposed mechanism
Cortagen acts as a peptide bioregulator, a class of short oligopeptides believed to interact with chromatin and regulate gene expression in a tissue-specific manner. It is thought to bind to DNA promoter regions in cortical and immune cells, upregulating the synthesis of proteins involved in neuronal survival, synaptic plasticity, and immune cell differentiation. Additionally, it may influence the production of neuropeptides and cytokines, modulating both the central nervous system and peripheral immune activity.
What the evidence supports
Most data comes from preclinical animal studies. Human clinical trial evidence is limited or absent.
Graded Animal
Evidence drawn from in vivo animal models or in vitro systems. Mechanistically informative; translation to humans is unproven.
Key citations
Representative primary sources, including results that did not favour the compound.
- [1]
Khavinson VKh et al. — Peptide regulation of gene expression and protein synthesis in bronchial epithelium
· Bulletin of Experimental Biology and Medicine, 35(4) · 2003
- [2]
Khavinson VKh, Morozov VG — Peptides of pineal gland and thymus prolong human life
· Neuroendocrinology Letters, 24(3-4):233-240 · 2003
- [3]
Anisimov VN et al. — Effect of Epithalon on biomarkers of aging, life span and spontaneous tumor incidence in female Swiss-derived SHR mice
· Biogerontology, 4(4):193-202 · 2003
Citation records in this build are illustrative placeholders for the design.
Reference information for research purposes. Not medical advice, and not a recommendation to use any compound. Many entries describe substances that are not approved for human use.