Pathophysiology of radiocontrast nephropathy and use of fenoldopam for its prevention
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Updated: Jul 20, 2026

5/6th Nephrectomy in Combination with High Salt Diet and Nitric Oxide Synthase Inhibition to Induce Chronic Kidney Disease in the Lewis Rat
Published on: July 3, 2013
1Departments of Nephrology and Transplantation, University of California, San Francisco, CA, USA.
Abstract:
There are no proven therapeutic agents for the prevention or treatment of acute renal failure. Radiocontrast agents induce intense vasoconstriction in the renal medulla, which is hypoxic even in normal physiologic states, thereby aggravating the imbalance of medullary oxygen supply and demand. Fenoldopam specifically increases blood flow to the renal medulla through selective agonism of dopamine-1 receptors and has been found to prevent radiocontrast nephropathy in several investigations, including one randomized, double-blind, placebo-controlled trial.
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