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  • Title: Role of bacterial toxins, bile acids, and free fatty acids in colonic water malabsorption in tropical sprue.
    Author: Ramakrishna BS, Mathan VI.
    Journal: Dig Dis Sci; 1987 May; 32(5):500-5. PubMed ID: 3568936.
    Abstract:
    Colonic perfusion studies in 10 southern Indian patients with tropical sprue and nine matched healthy adults revealed a defect of water and sodium absorption from the colon in sprue. Heat-labile and heat-stable enterotoxin production was not detected in coliforms cultured from the feces of any of the 19 subjects. The 24-hr fecal bile acid output was increased in patients with sprue, but fecal aqueous bile acid concentrations remained within normal limits, and these did not correlate with defects in colonic water and sodium absorption. Fecal free fatty acid excretion was markedly increased in sprue. There was a negative correlation between fecal excretion of unsaturated free fatty acids and colonic water and sodium absorption.
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