Cortagen

Cortagen (Ala-Glu-Asp-Pro) is a short synthetic peptide described as part of the Khavinson “bioregulator” class and is framed as a gene-expression modulator in neural research. The protocol explains that Cortagen was derived from analysis of cortex-derived preparations and is thought to influence protein synthesis programs involved in neuronal differentiation, growth, and stress resistance. In preclinical models, it is associated with upregulation of neurotrophic signaling, reductions in oxidative-stress markers, and measurable improvements in peripheral nerve regeneration—such as faster axonal growth and improved conduction velocity after injury. The page also describes benefits in chronic cerebral ischemia models, where Cortagen is linked to functional recovery and protection against oxidative damage. Overall, Cortagen is presented as a low-mass regulatory peptide that shifts cellular programs toward repair and resilience rather than acting as a classic receptor agonist.