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      Effect of Colchicine on Chronic Ciclosporin Nephrotoxicity in Sprague-Dawley Rats

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          Abstract

          Thirty male Sprague-Dawley rats were given ciclosporin (Cs) orally, 15 mg/kg daily for 80 days. Fifteen served as positive controls, while the other 15 were given daily colchicine at a dose of 30 µg/kg in addition to Cs. Additional 15 rats were given olive oil only and served as negative controls. The animals were subjected every other week to laboratory assessment of serum creatinine, sodium, potassium, and Cs whole-blood trough levels; also urine samples were examined for creatinine, sodium, potassium, and protein concentrations. At the end point, the animals were sacrificed, and kidney tissue was examined for histopathological changes. Comparing negative control versus Cs-treated and Cs-plus-colchicine-treated rats, there were no significant differences in serum creatinine, creatinine clearance, and serum and urine values of sodium and potassium as well as urinary protein/creatinine ratios. Yet histopathological examination of kidney tissues showed focal tubular atrophy and interstitial fibrosis in inner medulla and inner stripe of the outer medulla in all Cs-treated animals and in only 1 of the colchicine-treated group, but in none of the negative controls. Histological changes in other kidney zones in different animal groups were minor and not different. From this study, we may conclude that colchicine is of protective value against chronic Cs nephrotoxicity in Sprague-Dawley rats.

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          Colchicine in acute gout. Reassessment of risks and benefits.

          Colchicine is an effective and relatively specific treatment for acute gout and has a long, venerable history. Serious toxic reactions to colchicine could be prevented if guidelines for its use were followed strictly, but because of its relatively infrequent use and conflicting recommendations, considerable toxic effects might occur and still be undetected by passive surveillance. A review of a teaching hospital's four years' experience showed two deaths (2% incidence) due to inappropriate use. Colchicine has the smallest benefit-to-toxicity ratio of drugs that are effective for acute gout. This article gives specific recommendations for the use of colchicine in different clinical settings.
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            Author and article information

            Journal
            NEF
            Nephron
            10.1159/issn.1660-8151
            Nephron
            S. Karger AG
            1660-8151
            2235-3186
            1998
            August 1998
            29 July 1998
            : 79
            : 4
            : 452-457
            Affiliations
            Urology and Nephrology Center, University of Mansûra, Egypt
            Article
            45092 Nephron 1998;79:452–457
            10.1159/000045092
            9689162
            © 1998 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: 6
            Product
            Self URI (application/pdf): https://www.karger.com/Article/Pdf/45092
            Categories
            Original Paper

            Cardiovascular Medicine, Nephrology

            Fibrosis, Ciclosporin nephrotoxicity, Colchicine

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