nicotinamide (redirected from nicotinamide adenine dinucleotide (NAD))

nicotinamide /nic·o·tin·a·mide/ (nik?o-tin´ah-mid) niacinamide.

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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).

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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.

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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.

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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.