Answer to Pharmacology MCQ 436
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Pellagra is caused by a deficiency of the B vitamin niacin in the diet. Niacin refers to both nicotinic acid and nicotinamide. Nicotinamide is a component of two coenzymes, nicotinamide-adenine dinucleotide (NAD) and nicotinamide-adenine trinucleotide (NADP). These coenzymes are involved in oxidation-reduction reactions and are essential for metabolic processes in each cell in the body. A deficiency in niacin decreases the cellular function throughout the body. One symptom of niacin deficiency is diarrhea, which is one of the four D’s of pellagra-diarrhea, dermatitis, dementia, and death.
Category: Pharmacology MCQs
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