n :  a coenzyme C₂₁H₂₇N₇O₁₄P₂ of numerous dehydrogenases that occurs in most cells and plays an important role in all phases of intermediary metabolism as an oxidizing agent or when in the reduced form as a reducing agent for various metabolites - called also nicotinamide adenine dinucleotide , diphosphopyridine nucleotide , DPN 
, abbr no appreciable disease .
 
 
 
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