| slovo | definícia |
pellagra
(encz) | pellagra, |
Pellagra
(gcide) | Pellagra \Pel"la*gra\ (p[e^]l"l[.a]*gr[.a]), n. [It. pelle skin
+ agro rough.] (Med.)
An affection of the skin, characterized by redness,
especially in exposed areas, scaling and shedding of the
skin, and accompanied with severe gastrointestinal
disturbance and nervous symptoms. It is due to a deficiency
of niacin (vitamin B3; nicotinic acid) and protein in the
diet, and may be caused by malnutrition, or, in some cases,
by a heavy dependence on maize for food. It was at one time
(ca. 1890) endemic in Northern Italy, and was called {Alpine
scurvy}. It may also be caused by alcoholism or diease
causing an impairment of nutrition. It is also called {St.
Ignatius's itch}, maidism, mal de la rosa, mal rosso,
and psychoneurosis maidica. A variety of pellagra seen in
children is called infantile pellagra or kwashiorkor.
--[Stedman]
[1913 Webster +PJC] |
pellagra
(wn) | pellagra
n 1: 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
[syn: pellagra, Alpine scurvy, mal de la rosa, {mal
rosso}, maidism, mayidism, Saint Ignatius' itch] |
| | podobné slovo | definícia |
pellagra
(encz) | pellagra, |
antipellagra vitamin
(gcide) | niacin \niacin\ n.
A B vitamin (vitamin B5) essential for the normal function of
the nervous system and the gastrointestinal tract. Called
also nicotinic acid and antipellagra vitamin. Chemical
formula C6H5NO2, chemically it is 3-pyridinecarboxylic
acid.
Syn: nicotinic acid.
[WordNet 1.5]nicotinic acid \nic`o*tin"ic ac"id\, n. (Chem.)
An organic acid (C6H5NO2), a carboxylated derivative of
pyridine, obtained by the oxidation of nicotine; called also
niacin and antipellagra vitamin, and vitamin B5.
Chemically it is 3-pyridinecarboxylic acid.
Note: It is a cofactor in several enzymatic reactions, and is
used to prevent a pellagra-like disease in dogs.
--[MI11]
Syn: 3-pyridinecarboxylic acid, niacin, antipellagra vitamin.
[1913 Webster +PJC] |
infantile pellagra
(gcide) | Pellagra \Pel"la*gra\ (p[e^]l"l[.a]*gr[.a]), n. [It. pelle skin
+ agro rough.] (Med.)
An affection of the skin, characterized by redness,
especially in exposed areas, scaling and shedding of the
skin, and accompanied with severe gastrointestinal
disturbance and nervous symptoms. It is due to a deficiency
of niacin (vitamin B3; nicotinic acid) and protein in the
diet, and may be caused by malnutrition, or, in some cases,
by a heavy dependence on maize for food. It was at one time
(ca. 1890) endemic in Northern Italy, and was called {Alpine
scurvy}. It may also be caused by alcoholism or diease
causing an impairment of nutrition. It is also called {St.
Ignatius's itch}, maidism, mal de la rosa, mal rosso,
and psychoneurosis maidica. A variety of pellagra seen in
children is called infantile pellagra or kwashiorkor.
--[Stedman]
[1913 Webster +PJC] |
pellagra
(wn) | pellagra
n 1: 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
[syn: pellagra, Alpine scurvy, mal de la rosa, {mal
rosso}, maidism, mayidism, Saint Ignatius' itch] |
|