disaccharidase deficiency
- disaccharidase deficiency
- less than normal activity of disaccharidases of the intestinal mucosa. It usually denotes a generalized deficiency of all such enzymes secondary to a disorder of the small intestine, which clinically may be manifest only as a deficiency of lactase activity; sometimes the term is used to denote deficiency of a single enzyme or enzyme complex, such as lactase, sucrase-isomaltase complex, or α,α-trehalase. See also individual enzyme deficiencies and see disaccharide intolerance, under intolerance.
Medical dictionary.
2011.
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disaccharidase — di·sac·cha·ri·dase ( )dī sak ə rə .dās, .dāz n an enzyme (as maltase or lactase) that hydrolyzes disaccharides * * * di·sac·cha·ri·dase (di sakґə rĭ dās″) an enzyme that hydrolyzes disaccharides. In humans, the… … Medical dictionary
Lactase deficiency — Not enough of an enzyme called lactase in the small intestine to digest lactose, a prominent component of milk and most other dairy products. Lactose is sometimes also used as an ingredient in other foods, so anyone with lactase deficiency should … Medical dictionary
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disaccharide intolerance — a symptom complex occurring after ingestion of normal quantities of dietary carbohydrates, characterized by abdominal symptoms including diarrhea, flatulence, borborygmus, distention, and pain; it is usually due to deficiency of one or more… … Medical dictionary
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