Dementia due to pellagra (Q40234): Difference between revisions
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A demência devido à pelagra é causada pela falta persistente de vitamina B3 (niacina) ou triptofano na dieta ou devido à má absorção no trato gastrointestinal devido a doença (p. ex., doença de Crohn) ou devido aos efeitos de alguns medicamentos (p. ex., isoniazida). Os principais sinais da pelagra incluem alterações dermatológicas (sensibilidade à luz solar, lesões, alopecia e edema) e diarreia. Pelo prolongamento da deficiência nutricional podem aparecer sintomas cognitivos que incluem agressividade, distúrbios motores (ataxia e inquietação), confusão e fraqueza são observados. O tratamento com suplementação nutricional (p. ex.,, niacina) geralmente resulta na reversão dos sintomas. | |||
| description / en | description / en | ||
Dementia due to pellagra is caused by persistent lack of vitamin B3 (niacin) or tryptophan either in the diet or due to poor absorption in the gastrointestinal tract due to disease (e.g., Crohn disease) or due to the effects of some medications (e.g., isoniazid). Core signs of pellagra include dermatological changes (sensitivity to sunlight, lesions, alopecia, and oedema) and diarrhoea. With prolonged nutritional deficiency cognitive symptoms that include aggressivity, motor disturbances (ataxia and restlessness), confusion, and weakness are observed. Treatment with nutritional supplementation (e.g., niacin) typically results in reversal of symptoms. | |||
Revision as of 05:57, 13 August 2026
Dementia due to pellagra is caused by persistent lack of vitamin B3 (niacin) or tryptophan either in the diet or due to poor absorption in the gastrointestinal tract due to disease (e.g., Crohn disease) or due to the effects of some medications (e.g., isoniazid). Core signs of pellagra include dermatological changes (sensitivity to sunlight, lesions, alopecia, and oedema) and diarrhoea. With prolonged nutritional deficiency cognitive symptoms that include aggressivity, motor disturbances (ataxia and restlessness), confusion, and weakness are observed. Treatment with nutritional supplementation (e.g., niacin) typically results in reversal of symptoms.
| Language | Label | Description | Also known as |
|---|---|---|---|
| default for all languages | 6D85.8 |
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| English | Dementia due to pellagra |
Dementia due to pellagra is caused by persistent lack of vitamin B3 (niacin) or tryptophan either in the diet or due to poor absorption in the gastrointestinal tract due to disease (e.g., Crohn disease) or due to the effects of some medications (e.g., isoniazid). Core signs of pellagra include dermatological changes (sensitivity to sunlight, lesions, alopecia, and oedema) and diarrhoea. With prolonged nutritional deficiency cognitive symptoms that include aggressivity, motor disturbances (ataxia and restlessness), confusion, and weakness are observed. Treatment with nutritional supplementation (e.g., niacin) typically results in reversal of symptoms. |
