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  • Title: Atrial natriuretic peptide-induced increase of glomerular filtration rate, but not of natriuresis, is mediated by prostaglandins in the rat.
    Author: Pomeranz A, Podjarny E, Rathaus M, Shilo L, Shenkman L, Bernheim J.
    Journal: Miner Electrolyte Metab; 1990; 16(1):30-3. PubMed ID: 2139160.
    Abstract:
    This study addressed the question of whether some renal effects of atrial natriuretic peptide (ANP) are mediated by prostaglandins (PGs). Inhibition of PG synthesis (aspirin, 10 mg/kg) abolished the increase in inulin clearance (CIN) induced by ANP in rats. In contrast, diuresis and natriuresis remained significantly elevated after aspirin administration. ANP, either infused in vivo immediately before sacrifice or added to the incubation tubes, stimulated the synthesis of PGE2 and 6-keto-PGE1 alpha by isolated rat glomeruli but not by medullary or papillary slices. We conclude that the effect of ANP on the glomerular filtration rate is PG dependent, whereas that on diuresis and natriuresis is direct.
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