Nampt, nicotinamide phosphoribosy-ltransferase, is the rate limiting enzyme of the mammalian NAD biosynthesis pathway. The circulating NMN (nicotinamide mononucleotide) and NAD are taken up by beta cells and converted to NAD by Nmnat (nicotinamide mononucleotide adenyltransferase) and intracellular Nampt. The Nampt plays a critical role in enhancing life span and protecting against oxidative damage. The Nampt (Visfatin/PBEF) (human) Intracelluar ELISA Kit is to be used for the in vitro quantitative determination of intracellular human Nampt (Visfatin/PBEF). This assay is a sandwich ELISA which utilizies a 96-well microtiter plate which was pre-coated with a monoclonal antibody and a purified polyclonal detection antibody. A HRP-conjugated a