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  • Title: The effect of CdCl2 on the respiration of rat small intestine mucosa.
    Author: Vojtísek M.
    Journal: J Hyg Epidemiol Microbiol Immunol; 1983; 27(4):381-6. PubMed ID: 6663070.
    Abstract:
    Process of oxygen consumption of rat small intestine have already been studied at the level of whole intestinal wall or mucosa only by means of manometric or polarographic methods. The influence of cadmium on mucosal respiration of three sections of rat small intestine was determined because of its toxicological importance. Oxygen consumption was measured polarographically with Clark electrode at 38 degrees C in Krebs Ringer phosphate medium with 0.011 mol/l glucose. Control as well as cadmium affected respiration values were measured one after the other on the same mucosa. High cadmium concentration (applied as CdCl2) that is 2.2 and 1.4 . 10(-2) mol/l significantly inhibited the respiration in duodenum, jejunum and ileum. Observed inhibition of 80 and 50% on the average approximately for these two concentrations was related (similarly as following effects) to 100% value of control respiration. Concentrations 7.8 and 4.5. 10(-3) mol/l caused mostly lower inhibition of oxygen consumption (with the exception of significant 53% inhibition of jejunal respiration for 7.8. 10(-3) mol/l CdCl2). Low concentrations 10(-4) - 10(-6) mol/l CdCl2 had either no effect or stimulated oxygen uptake in intestinal mucosa. In older rats (weight 300-350 g) the respiration of duodenal and jejunal mucosa was inhibited with cadmium chloride concentration of 10(-6) mol/l.
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