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      Effect of Chronic Fluoride Exposure in Uremic Rats

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          Abstract

          This study was conducted to test the hypothesis that the margin of safe fluoride exposure is narrowed in rats that are physiologically compromised by renal dysfunction. The study objective was to determine whether increases in fluoride retention and tissue fluoride levels in rats with surgically induced renal insufficiency result in toxic fluoride effects not ordinarily observed in healthy animals. Uremic and sham-operated control rats received 0 µg/ml, 5 (0.26 mmol/l), 15 (0.79), or 50 µg/ml (2.63 mmol/l) of fluoride in their drinking water for 3 or 6 months. Fluoride retention was monitored, and, following euthanasia, tissue fluoride and biochemical markers of tissue function were analyzed. Selected tissues were saved for histology, and bone marrow cells were harvested for determining the frequency of sister chromatid exchange, a marker of genetic damage. In spite of significantly higher levels of fluoride in the tissues of the animals with renal insufficiency, there were no clinically adverse, fluoride-induced, extraskeletal physiological, biochemical, or genetic effects of chronic exposure to common levels of fluoride in these rats.

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          Most cited references 2

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          Separation of fluoride by rapid diffusion using hexamethyldisiloxane

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            Fluoride metabolism in patients with chronic renal failure

             H. SPENCER (1980)
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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
              January 1998
              19 December 1997
              : 78
              : 1
              : 96-103
              Affiliations
              a Oral Health Research Institute, b Division of Biostatistics, Indiana University School of Medicine, c Department of Stomatology, Indiana University School of Dentistry, Indianapolis, Ind., USA
              Article
              44888 Nephron 1998;78:96–103
              10.1159/000044888
              9453410
              © 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
              Figures: 2, Tables: 2, References: 29, Pages: 8
              Product
              Self URI (application/pdf): https://www.karger.com/Article/Pdf/44888
              Categories
              Original Paper

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