Abstract
The intestinal transport of D-xylose was studied during the acute poisoning of male Wistar rats with orally administered potassium nitrate and sodium nitrite. At the peak of xylose absorption, the metabolic parameters of Na+/K+-ATPase, alkaline phosphatase, oxygen uptake, and lactic acid level were determined in the small intestine mucosa. Nitrite in a dose of 80 mg NaNO2/kg b.w. increased the permeability of gastric mucosa for D-xylose and raised the uptake of oxygen by the small intestine mucosa. No changes were observed in the activity of Na++/K+-ATPase and alkaline phosphatase. A dose of 10 mg NaNO2/kg b.w. was not followed by increased absorption of this sugar. It was also demonstrated that potassium nitrate had no effect on the process of intestinal absorption of D-xylose and failed to change the determined metabolic parameters of the small intestine mucosa.
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Grudziński, I., Szymański, A. The effect of acute poisoning with potassium nitrate and sodium nitrite on the processes of intestinal absorption of D-xylose in rats. Arch. Environ. Contam. Toxicol. 21, 453–461 (1991). https://doi.org/10.1007/BF01060370
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DOI: https://doi.org/10.1007/BF01060370