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1 Department of Pharmacology, State University of New York, Upstate Medical Center, Syracuse, N. Y.
Renal protein-bound sulfhydryl concentrations were studied by a quantitative histochemical method in dogs.
The mercurial diuretic, mersalyl, lowered the concentration of sulfhydryl in cells of the terminal portions of proximal tubules, ascending limbs of the loops of Henle, and collecting ducts. BAL effectively counteracted mercurial diuresis and simultaneously restored sulfhydryl concentrations to control levels. The monothiol, cysteine, did not reverse the mercurial-induced changes in water and electrolyte excretion or sulfhydryl. Non-diuretic doses of mersalyl had no apparent effect on renal sulfhydryl concentrations.
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