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      Serum Aluminum Transport and Aluminum Uptake in Chronic Renal Failure: Role of Iron and Aluminum Metabolism

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          Abstract

          Several factors have been blamed for increasing gastrointestinal absorption of aluminum. The likely role of iron metabolism was suggested some years ago. As iron and aluminum share many chemical properties, it is reasonable to think they also share biological pathways. The aim of this study was: (a) to evaluate serum aluminum transport and its relationship with iron-binding capacity, and (b) to investigate aluminum hydroxide absorption as a function of iron and aluminum. We investigated 127 patients with chronic renal failure undergoing hemodialysis in a study divided into two phases: phase 1, a basal study to investigate serum iron and aluminum status, and phase 2 in which an aluminum absorption test was performed. In phase 1, we found that the lower basal serum iron and iron transferrin saturation the greater serum aluminum (p < 0.001). In phase 2, we found a negative relationship between serum aluminum increments after the test and basal levels of serum aluminum and iron (r = -0.70; p < 0.001). These results suggest that the amount of either aluminum or iron carried by transferrin may influence the transferrin capacity to bind the other element and also may modulate, together with other factors, the gastrointestinal absorption of iron and aluminum.

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          Author and article information

          Journal
          NEF
          Nephron
          10.1159/issn.1660-8151
          Nephron
          S. Karger AG
          1660-8151
          2235-3186
          1993
          1993
          12 December 2008
          : 65
          : 1
          : 141-146
          Affiliations
          aBone and Mineral Research Unit, Hospital General of Asturias, Oviedo, Spain; bOn attachment from Hospital Manuel Quintela, Montevideo, Uruguay
          Article
          187456 Nephron 1993;65:141–146
          10.1159/000187456
          8413773
          © 1993 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
          Categories
          Short Communication

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