To determine the sites of tubular phosphate reabsorption in the nephron, microinjection studies were undertaken, utilizing isotonic electrolyte solutions, containing either 1.4 or 8.0 mM phosphate and radioactive PO4-33P and inulin-3H, in rats made mildly diuretic by infusion of mannitol. The injected sites were localized by the technique of latex dissection.
Barry B. Staum, Robert J. Hamburger, Martin Goldberg
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