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CD38: Cluster of differentiation 38; NAD: Nicotinamide adenine dinucleotide; NAM: Nicotinamide; NAMPT: Nicotinamide phosphoribosyltransferase; NMN: Nicotinamide mononucleotide; NMNAT: Nicotinamide mononucleotide adenylyltransferase; SIRT1: Sirtuin 1
