| uracil-DNA glycosidase | <enzyme> Catalyses hydrolysis of n-glycosidic bond of damaged nucleotide residues to give free uracil and partly depyrimidinated DNA of unaltered chain length; does not cleave phosphodiester bonds; a DNA repair enzyme Registry number: EC 3.2.2.- Synonym: ura-DNA glycosidase, uracil-DNA glycosylase, uracil n-glycosidase, ura-DNA glycosylase, uracil n-glycosylase (26 Jun 1999) |
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| uraemia | 1. <biochemistry> An excess in the blood of urea, creatinine and other nitrogenous end products of protein and amino acids metabolism, more correctly referred to as azotaemia. 2. <nephrology> In current usage the entire constellation of signs and symptoms of chronic renal failure including nausea, vomiting anorexia, a metallic taste in the mouth, a uraemic odour of the breath, pruritus, uraemic frost on the skin, neuromuscular disorders, pain and twitching in the muscles, hypertension, oedema, mental confusion and acid base and electrolyte imbalances. Origin: Gr. Ouron = urine, haima = blood (18 Nov 1997) |
| uraemic | <medicine> Of or pertaining to uraemia; as, uraemic convulsions. Source: Websters Dictionary (01 Mar 1998) |
| uraemic breath | Characteristic odour of the breath in patients with chronic renal failure, variously described as "fishy," "ammoniacal," and "fetid," which is indicative of the systemic accumulation of volatile metabolites, usually excreted in the urine; dimethylamine and trimethylamine have been identified and correlated with the classic fishy odour. (05 Mar 2000) |
| uraemic colitis | Colitis characterised by haemorrhages in the mucosa, occurring in renal failure, possibly owing to the irritant effect of ammonia formed by breakdown of increased urea in the intestinal secretions. (05 Mar 2000) |
| uraemic coma | A metabolic encephalopathy caused by renal failure. (05 Mar 2000) |
| uraemic frost | Powdery deposits on the skin, especially the face, of urea and uric acid salts due to excretion of nitrogenous compounds in the sweat; seen in severe uraemia. Synonym: uridrosis crystallina. (05 Mar 2000) |
| uraemic lung | Perihilar oedema of the lung associated with renal failure and hypertension; the peripheral parts of the lung remain clear. Synonym: uraemic pneumonia, uraemic pneumonitis. (05 Mar 2000) |
| uraemic pericarditis | Fibrinous pericarditis seen in chronic renal failure. (05 Mar 2000) |
| uraemic pneumonia | Terminal infective pneumonia occurring in a patient with uraemia. See: uraemic lung (05 Mar 2000) |
| uraemic pneumonitis | Perihilar oedema of the lung associated with renal failure and hypertension; the peripheral parts of the lung remain clear. Synonym: uraemic pneumonia, uraemic pneumonitis. (05 Mar 2000) |
| uraemic polyneuropathy | A distal sensory and motor polyneuropathy without conspicuous inflammation and ascribed to the metabolic effects of chronic renal failure. (05 Mar 2000) |
| uraeum | <zoology> The posterior half of an animal. Origin: NL, from Gr, fr. Of the tail; cf. L. Uraeus, adj. Source: Websters Dictionary (01 Mar 1998) |
| Uragoga | A genus of tropical plants (family Rubiaceae). Uragoga ipecacuanha (Cephaelis ipecacuanha) is the source of Rio or Brazilian ipecac; Uragoga acuminata (C. Acuminata) is the source of Cartagena, Nicaragua, or Panama ipecac. Synonym: Cephaelis. (05 Mar 2000) |
| uralite | <chemical> Amphibole resulting from the alternation of pyroxene by paramorphism. It is not uncommon in massive eruptive rocks. Origin: So called because first observed in the Ural Mountains. Source: Websters Dictionary (01 Mar 1998) |