Stronger mechanistic clarification would require isoform-specific NOS inhibition, direct measurement of NO metabolites, eNOS phosphorylation analysis, rescue experiments, and comparison across endothelial, epithelial, fibroblast, and neuronal model systems
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Intermediate users may increase the dose to 400500 micrograms daily
Once complexed with Cu(II), the peptide backbone rearranges into a specific square-planar coordination around the copper ion, with donor atoms from the glycine amino terminus, the deprotonated amide nitrogen, the histidine imidazole, and a fourth position (carboxylate or water depending on pH)