About the Compound GHK-Cu is the copper(II) chelate complex of the human tripeptide glycyl-L-histidyl-L-lysine (Gly-His-Lys)
Its four-residue sequence alanine, glutamic acid, aspartic acid, and glycine gives it two acidic side chains, making the molecule negatively charged at physiological pH
On the other hand, several investigators found that treatment with erastin could inhibit system xCT, thereby reducing extracellular cystine import for GSH synthesis and increasing the sensitivity to ferroptosis (Wang et al., 2020)
Several papers explored: dopaminergic signaling serotonergic interactions nitric oxide pathway modulation neuroprotective activity gut-brain axis relationships These discussions led to more interest in whether gastrointestinal stabilization might indirectly influence mood regulation, stress tolerance, cognitive clarity, reward signaling, and emotional stability
The gut microbiota metabolite capsiate promotes Gpx4 expression by activating TRPV1 to inhibit intestinal ischemia reperfusion-induced ferroptosis