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  • Title: Effects of glucose on bicarbonate reabsorption in the dog kidney.
    Author: Suki WN, Herbert CS, Stinebaugh BJ, Martinez-Maldonado M, Eknoyan G.
    Journal: J Clin Invest; 1974 Jul; 54(1):1-8. PubMed ID: 4834882.
    Abstract:
    The effects of glucose on renal bicarbonate reabsorption were investigated in the dog. The infusion of small amounts of glucose calculated to slightly exceed the renal threshold for glucose absorption increased bicarbonate reabsorption in bicarbonate loaded dogs. Galactose in similar doses also increased the reabsorption of filtered bicarbonate. This effect is not due to insulin secretion since insulin alone did not alter bicarbonate reabsorption and the infusion of glucose into alloxan-diabetic dogs given a steady infusion of insulin also enhanced bicarbonate reabsorption. It is more likely that the increased tubular reabsorption of glucose, secondary to an increased filtered load, resulted in the increase in bicarbonate reabsorption since phlorizin reversibly inhibits the effect of glucose.
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