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      Surface Antigen Expression and Platelet Neutrophil Interactions in Haemodialysis

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          Abstract

          Background: There is increasing evidence to show the clinical implications of membrane biocompatibility in haemodialysis therapy. Methods: We conducted a cross-over clinical study examining the clinical biocompatibility profile of three derivatised cellulosic membranes obtained by means of different modifications to the cellulose polymer (haemophan, cellulose diacetate, benzyl cellulose) in comparison to the parent polymer (cuprophan) and a reference synthetic membrane (polysulfone). Results: In terms of leukopenia production, derivatised cellulosic membranes were generally intermediate between cuprophan and polysulfone, haemophan being more marked than the other two membranes. Upregulation of CD11b/CD18 molecule on neutrophils was found with all membranes, to a greater extent with the dialyser containing cuprophan. The expression of CD11b/CD18 on monocytes was slightly affected with cuprophan only. The neutrophil and monocyte counts throughout the entire dialysis session showed a much better correlation with the cellular expression of sialyl-Lewis x (CD15s) molecule than with CD11b/CD18 expression. An increased formation of platelet-neutrophil coaggregates occurred at 15 and 30 min during dialysis with all membranes but benzyl cellulose, the increase with cuprophan being higher than with the other membranes. In concomitance with the increase in platelet-neutrophil coaggregation, an increased hydrogen peroxide production by neutrophils occurred, which proved to be significantly higher compared to the unchanged neutrophil hydrogen peroxide production during HD with benzyl cellulose. Conclusions: Our results demonstrate that derivatised cellulose is associated with a considerable improvement in the clinical biocompatibility profile. Derivatised cellulosic membranes show many similarities but also several significant differences which very likely stem from the different type of structural modification to the cellulose polymer rather than from the degree of hydroxyl group replacement.

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          A biochemical approach to atherogenesis

           Kunio Yagi (1986)
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            Author and article information

            Journal
            BPU
            Blood Purif
            10.1159/issn.0253-5068
            Blood Purification
            S. Karger AG
            978-3-8055-6918-7
            978-3-318-00464-9
            0253-5068
            1421-9735
            1999
            1999
            12 August 1999
            : 17
            : 2-3
            : 107-117
            Affiliations
            aInstitute of Nephrology, Department of Medicine, ‘G. D’Annunzio’ University, Chieti, bBellco Clinical and Research Department, Mirandola, Italy
            Article
            14382 Blood Purif 1999;17:107–117
            10.1159/000014382
            10449868
            © 1999 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: 4, Tables: 1, References: 38, Pages: 11
            Product
            Self URI (application/pdf): https://www.karger.com/Article/Pdf/14382
            Categories
            Paper

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