منابع مشابه
Neonatal intestinal lactase activity.
The sequential changes in intestinal lactase activity of 40 neonates were measured indirectly from the differential uptake and excretion of lactose and the non-metabolisable disaccharide lactulose contained in formula feeds. A daily decline in urinary lactose:lactulose excretion ratios, reflecting a rise in intestinal lactase activity, followed formula feeding. Percentage decline was related di...
متن کاملThe Lactase Activity of the Intestinal Mucosa of the Dog and Some Characteristics of Intestinal Lactase
The early work on intestinal lactase has been reviewed by Plimmer (1906) and Oppenheimer (1925). No uniformity of opinion was reached regarding the presence and dist,ribution of this enzyme in the intestinal mucosa or in intestinal juice. Without attempting to review these investigations again, it suffices to state that some authors found lactase in the small intestine of young animals. Others ...
متن کاملImproved purification of rat intestinal lactase.
A rapid and improved method to obtain purified lactase from rat intestine is described. The purification procedure involved only two chromatographic steps. The degree of purification was far above (500 fold) the values reached with classical methods. Rabbit antisera raised to the purified lactase were characterized using conventional immunological techniques. The specificity of the lactase anti...
متن کاملEffect of lactation on the decline of brush border lactase activity in neonatal pigs.
It has been shown that during the early phase of lactation porcine milk contains high concentrations of hormones and growth factors. The aim of the present investigation was to examine the hypothesis that the temporal coordination of intestinal maturation in piglets can be extrinsically regulated through changes in the composition of milk during the suckling period. Gut morphology and the ontog...
متن کاملDissociation and Lactase Activity in Slow Lactose-Fermenting Bacteria of Intestinal Origin.
In 1918 Bronfenbrenner and Davis observed that intestinal bacteria were frequently encountered which failed to show up as lactose fermenters in the routine diagnostic procedure, but which readily did so on subsequent cultivation in media containing lactose in higher concentrations. Studies of the conditions under which the fermentation of lactose by these organisms could be enhanced, with the p...
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ژورنال
عنوان ژورنال: Archives of Disease in Childhood
سال: 1986
ISSN: 0003-9888,1468-2044
DOI: 10.1136/adc.61.9.896