منابع مشابه
Disaccharidase deficiency in man.
IT IS STILL commonly taught in physiological textbooks that carbohydrates are completely digested in the lumen of the bowel by the action of pancreatic juices and the succus entericus. This is untrue and in fact the enzymes of the succus entericus probably represent desquamated intestinal cells and are not present in sufficient quantitity to be of physiological significance, while the final sta...
متن کاملDisaccharidase activities in jejunal fluid.
Jejunal fluid and mucosal tissue were obtained simultaneously from the same jejunal site in a group of 29 children by a modified biopsy procedure. Lactase, maltase, and sucrase activities were measured in both fluid and mucosal specimens using the same analytical method. The fluid enzyme activities showed highly significant positive correlations with the same enzyme activity in the relevant tis...
متن کاملIntestinal disaccharidase activity in rosacea.
Recently intestinal disaccharidase deficiency has been identified as one cause of carbohydrate intolerance (Durand, 1958; Auricchio et al., 1963; Kern et al., 1963 ; Dahlqvist, 1964; McMichael et al., 1965; Sheehy and Anderson, 1965). The disaccharidases are produced and act within the cells of the intestinal epithelium (Miller and Crane, 1961). Enzyme deficiencies may be found singly or combin...
متن کاملSpecific Disaccharidase Deficiency in Adults
Glucose-galactose malabsorption. This rare genetically determined syndrome is at fust sight difficult to correlate with any hypothesis that there is more than one mechanism for glucose transfer, but several explanations are possible. First, in subjects with this condition the absorption of galactose is undetectable but small amounts of glucose are still absorbed (Meeuwisse & Melin, 1969). Secon...
متن کاملMicrovillous surface area in secondary disaccharidase deficiency.
Electron microscopy was used to measure microvillous surface area in seven small intestinal biopsies showing secondary disaccharidase deficiency and in five biopsies having normal disaccharidase levels. There were significant reductions in microvillous surface area in the enzyme deficient group, although the microvilli were not severely damaged. Histological abnormality was not always present w...
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ژورنال
عنوان ژورنال: Journal of Clinical Pathology
سال: 1971
ISSN: 0021-9746
DOI: 10.1136/jcp.s3-5.1.22