| enterocyte | <pathology> Cells of the intestinal epithelium. (18 Nov 1997) |
|---|---|
| ATP cobalamin adenoxyltransferase | <enzyme> An enzyme that catalyses the reaction of ATP, water, and cobalamin to form orthophosphate, pyrophosphate, and adenoxylcobalamin. Adenosylcobalamin is required by methylmalonyl-CoA mutase. A deficiency of ATP cobalamin adenosyltransferase will lead to methylmalonic acidemia. (05 Mar 2000) |
| cobalamin | <biochemistry> Member of the water soluble B vitamin group, important in the proper function of the nervous system and important in proper carbohydrate, protein and fat metabolism. (27 Sep 1997) |
| cobalamin (5'-phosphate)synthase | <enzyme> From pseudomonas denitrificans; catalyses the synthesis of cobalamin 5'-phosphate from GDP-cobinamide and alpha-ribazole 5'-phosphate, but also the synthesis of cobalamin from GDP-cobinamide and alpha-ribazole Registry number: EC 2.6.99.- Synonym: cobv gene product (26 Jun 1999) |
| cobalamin concentrate | The dried, partially purified product resulting from the growth of selected Streptomyces cultures or other cobalamin-producing microorganisms; contains at least 500 ug of cobalamin in each gram. (05 Mar 2000) |
| malabsorption | <gastroenterology> Impaired intestinal absorption of nutrients. (18 Nov 1997) |
| malabsorption syndrome | <syndrome> A variety of conditions in which digestion and absorption in the small intestine are impaired. Multiple causes including lymphoma, amyloid and other infiltrations, Crohn's disease, gluten sensitive enteropathy and the sprue syndrome in which the villi atrophy for unknown reasons. (18 Nov 1997) |
| malabsorption syndromes | General term for syndromes of malnutrition due to failure of normal intestinal absorption of nutrients. (12 Dec 1998) |
| methionine malabsorption syndrome | <syndrome> An inherited disorder in which there is an inability to absorb l-methionine from the gut. (05 Mar 2000) |
| intestinal malabsorption | <gastroenterology> The inadequate absorption of nutrients from the small intestine. This can result in loss of weight and abnormal appearing stools. Malabsorption can be caused by lesions of the small intestine, amyloidosis, lack of digestive enzymes (for example lactose intolerance) or bile salts or surgical operations. (10 Jan 1998) |