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      Changes in Intrarenal Uric Acid Handling during Chronic Spironolactone Treatment in Patients with Essential Hypertension

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          Abstract

          Intrarenal handling of uric acid was studied in 12 patients with essential hypertension under spironolactone treatment (200 mg/day). The degree of volume depletion during treatment was assessed from the changes in body weight and plasma renin activity (PRA). The results are compared with those in patients treated with chlorthalidone (50 mg/ day). During spironolactone treatment, the serum uric acid level remained constant despite a progressive volume depletion which after 3 months reached levels identical to those achieved in the chlorthalidone-treated patients, whose serum uric acid level showed the expected rise (21%). The uric acid excretion during spironolactone treatment was markedly diminished (-28%), and thus the 24-hour clearance of uric acid was correspondingly decreased (-22%). It is concluded that spironolactone affects uric acid metabolism in two ways: it causes a decrease in uric acid renal clearance (probably mediated by the induced volume depletion and PRA elevation, as with other saluretics) and, probably, inhibits endogenous uric acid production to approximately the same degree as the clearance is decreased, so that no change in the serum uric acid level occurs. The purpose of the study was to investigate the effect of spironolactone on uric acid handling by the kidney. We found a decrease in uric acid clearance and uric acid excretion. Serum uric acid concentration did not change.

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          Author and article information

          Journal
          NEF
          Nephron
          10.1159/issn.1660-8151
          Nephron
          S. Karger AG
          1660-8151
          2235-3186
          1982
          1982
          03 December 2008
          : 32
          : 3
          : 209-213
          Affiliations
          aDepartment of Nephrology and Hypertension and bDepartment of Clinical Chemistry, University Hospital, Utrecht, The Netherlands
          Article
          182847 Nephron 1982;32:209–213
          10.1159/000182847
          7155242
          © 1982 S. Karger AG, Basel

          Copyright: All rights reserved. No part of this publication may be translated into other languages, reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying, recording, microcopying, or by any information storage and retrieval system, without permission in writing from the publisher. Drug Dosage: The authors and the publisher have exerted every effort to ensure that drug selection and dosage set forth in this text are in accord with current recommendations and practice at the time of publication. However, in view of ongoing research, changes in government regulations, and the constant flow of information relating to drug therapy and drug reactions, the reader is urged to check the package insert for each drug for any changes in indications and dosage and for added warnings and precautions. This is particularly important when the recommended agent is a new and/or infrequently employed drug. Disclaimer: The statements, opinions and data contained in this publication are solely those of the individual authors and contributors and not of the publishers and the editor(s). The appearance of advertisements or/and product references in the publication is not a warranty, endorsement, or approval of the products or services advertised or of their effectiveness, quality or safety. The publisher and the editor(s) disclaim responsibility for any injury to persons or property resulting from any ideas, methods, instructions or products referred to in the content or advertisements.

          Page count
          Pages: 5
          Categories
          Original Paper

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