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Disaccharidase deficiency 

Disaccharidase deficiency

Chapter:
Disaccharidase deficiency
Author(s):

T.M. Cox

DOI:
10.1093/med/9780199204854.003.151005_update_001

Update:

New references to the evolutionary significance of genetic variation in human intestinal lactase expression and its biological significance.

More explicit guidance on the management of the carbohydrate intolerance syndrome.

Updated on 28 Nov 2012. The previous version of this content can be found here.
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date: 26 May 2017

Disaccharidases occur in the microvilli of the small intestine and are required for the complete assimilation of nearly all carbohydrate present in food and drinks, apart from free glucose and fructose. The enzymes cleave disaccharides such as sucrose, maltose, and lactose, as well as dextrins derived from starch, into their component monosaccharides, and their activity is reduced in hereditary conditions or in generalized intestinal diseases....

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