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nicotinamide
(redirected from nicotinamide adenine dinucleotide (NAD))

   Also found in: Encyclopedia, Wikipedia 0.07 sec.
nicotinamide /nic·o·tin·a·mide/ (nik?o-tin´ah-mid) niacinamide.
nicotinamide adenine dinucleotide  (NAD) a coenzyme composed of nicotinamide mononucleotide in pyrophosphate linkage with adenosine monophosphate; it is involved in numerous enzymatic reactions, in which it serves as an electron carrier by being alternately oxidized (NAD+) and reduced (NADH).
nicotinamide adenine dinucleotide phosphate  (NADP) a coenzyme composed of nicotinamide mononucleotide coupled by pyrophosphate linkage to adenosine 2',5'-bisphosphate; it serves as an electron carrier in numerous reactions, being alternately oxidized (NADP+) and reduced (NADPH).

nic·o·tin·a·mide (nk-tn-md, -tn-)
n.
The biologically active amide of niacin having similar vitamin activity and used in the prevention and treatment of pellagra. Also called niacinamide.

nicotinamide
the amide of the B group vitamin, niacin, occurring naturally in the body and interconvertible with niacin; used in the prophylaxis and treatment of pellagra in humans. Called also niacinamide.

nicotinamide adenine dinucleotide (NAD)
a coenzyme that is involved in many biochemical oxidation-reduction reactions. The symbols for the oxidized and reduced forms are NAD+ and NADH.
nicotinamide adenine dinucleotide phosphate (NADP)
a coenzyme similar to nicotinamide adenine dinucleotide but involved in fewer reactions. The symbols for the oxidized and reduced forms are NADP+ and NADPH.

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