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      Significance of Glomerular Deposition of Protein S in Various Glomerulopathies

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          Abstract

          To elucidate the relationship between glomerular deposition of protein S (PS) and renal lesions or dysfunction, 30 patients with various glomerulopathies were examined. Glomerular PS deposition was found in 20 patients (group A), and other 10 patients showed no deposition (group B). PS was found mainly along the capillary loops and segmentally in the mesangium. Group A showed significantly more severe proteinuria than group B (p < 0.05). Group A patients showed significant decreases in glomerular filtration rate (p < 0.01). Patients in group A had significantly lower plasma levels of plasmin-alpha<sub>2</sub>-plasmin inhibitor complexes (p < 0.05) and thrombin-antithrombin III complexes (p < 0.01) than those in group B. Group A showed significant decreases in the mean values of plasma total PS (p < 0.01) and protein C (PC) antigens (p < 0.01) and C4b-binding protein (C4bp; p < 0.05) as compared with group B patients. There was a positive correlation between plasma PS and C4bp (p < 0.02). Histologically, group A showed a significantly higher incidence of glomerular deposition of factor XIII (subunit a), alpha<sub>2</sub>-plasmin inhibitor, PC (p < 0.05), and C4bp (p < 0.01). The present study demonstrates that glomerular PS deposition indicates the existence of PC and C4bp in the glomeruli and suggests that the glomerular PS deposition may modify the activation of fibrinolytic and coagulation systems within the glomeruli in various glomerulopathies.

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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
          : 38-43
          Affiliations
          a Department of Clinical and Laboratory Science, Fukui Medical School, Fukui, b Blood Transfusion Division, Niigata University Medical Hospital, Niigata, c Department of Medicine II, Niigata University School of Medicine, Niigata, Japan
          Article
          44880 Nephron 1998;78:38–43
          10.1159/000044880
          9453402
          © 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: 6, References: 28, Pages: 6
          Product
          Self URI (application/pdf): https://www.karger.com/Article/Pdf/44880
          Categories
          Original Paper

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