Additionally, DA quinones can be oxidized to aminochrome, whose redox-cycling leads to the generation of the superoxide radical and the depletion of cellular nicotinamide adenine dinucleotide phosphate-oxidase (NADPH), which ultimately forms the neuromelanin (Sulzer et al., 2000) known to be accumulated in the SNpc of the human brain (Ohtsuka et al., 2013, 2014
Topical copper peptides may help this look when the main driver is dermal thinning, but they work slowly and need steady use over months, not days
Sample sizes (typically 36 biological replicates per group) were selected based on established standards in the field and our preliminary data, which indicated that this range was sufficient to detect biologically relevant effects
Taking a few extra minutes to aliquot your stock solution will safeguard your entire peptide supply, saving you a world of time, money, and frustration down the road