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GHK-Cu, a variant of the peptide found in high concentrations in the brain, has been studied for its ability to counteract age-associated decline in neuron function

35(2): 1437 Bhattacharya R, Rao PV

This, in turn, affects the function of action potential-generating neurons in the inner retina, ultimately leading to irreparable visual impairment ( AQP4 is a bidirectional transmembrane transporter protein that co-localizes and interacts with Kir4.1, mediating the reabsorption of water from the extracellular space of the retina back into the blood or transport thereof to the vitreous humor

10.1016/j.ceb.2014.09.010 [DOI] [PMC free article] [PubMed] [Google Scholar] Ricordi C., Garcia-Contreras M., Farnetti S