a disease that makes you feel tired and that causes problems with your skin and central nervous system, caused by a lack of a type of B vitamin (pelle ). Nutritional disorder caused largely by a deficiency of niacin, marked by skin lesions and digestive and neurological disturbances. Dermatitis usually appears first, with abnormal sensitivity to sunlight. It may look like a severe sunburn, later becoming reddish brown, rough, and scaly. Diarrhea usually alternates with constipation, along with mouth and tongue inflammation and cracking and dry scaling of the lips. Later, mental abnormalities may include nervousness, depression, and delirium. Mild cases of niacin deficiency respond to a well-balanced diet alone. Pellagra still occurs where diets consist mostly of corn, which is low in both niacin and tryptophan (converted to niacin in the body), with little or no protein-rich food. It can also be a side effect of chronic alcoholism
Lassitude, torpor, dermatitis, diarrhea, dementia, and death brought about by a diet deficient in tryptophan and niacin
a disease caused by deficiency of niacin or tryptophan (or by a defect in the metabolic conversion of tryptophan to niacin); characterized by gastrointestinal disturbances and erythema and nervous or mental disorders; may be caused by malnutrition or alcoholism or other nutritional impairments
vitaminsizlikten ileri gelen bir hastalık
Расстановка переносов
vi·ta·min·siz·lik·ten i·le·ri ge·len bir has·ta·lık