Spectrophotometric assays for measuring redox biomarkers in blood and tissues: the NADPH network
Nicotinamide adenine dinucleotide (NAD+/NADH) along with its phosphorylated form (NADP+/NADPH) are two molecules ubiquitously present in all organisms, and they play key roles as cofactors in fundamental catabolic and anabolic processes, respectively.The oxidation of NADPH to NADP+ initiates a cascade of reactions, where a network of molecules is i