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Science 27 October 1967:
Vol. 158. no. 3800, pp. 494 - 496
DOI: 10.1126/science.158.3800.494
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Articles

Polycystic Renal Disease: A New Experimental Model

Daniel Y. E. Perey 1, Roger C. Herdman 1, and Robert A. Good 1

1 Department of Pediatrics, University of Minnesota, Minneapolis

A single injection of any one of several long-acting adrenal corticosteroids at birth induces progressive cystic changes in nephrons which develop in the subcapsular zone of the rabbit kidney until 10 days after birth. These cystic lesions enlarge progressively and become visible within a few days after birth. When the animal is 2 weeks old, renal size has become three times as large as that of uninjected littermates. Adrenal corticosteroids prolong the duration of nephrogenic activity in the renal cortex. The cysts are blind and represent dilatation of the developing end of the collecting ducts. When the steroid-induced hypokalemia is prevented with repeated potassium chloride injections, renal cystic disease is almost completely prevented. Certain long-acting steroids induce cystic renal changes without systemic signs of toxicity.


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Science. ISSN 0036-8075 (print), 1095-9203 (online)