Effect of dexamethasone on segmental phosphate reabsorption in phosphate-deprived rats.


These experiments were designed to test the hypothesis that avid phosphate reabsorption by the pars recta accounts for the resistance to the phosphaturic effects of acute dexamethasone (DEX) and parathyroid hormone (PTH) infusions in rats fed a low-phosphate diet. Acute infusion of DEX [0.4 mg/(kg X h)] increased the fractional delivery of phosphate (FDPi… (More)


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