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      TINU Syndrome Associated with Reduced Complement Levels

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          Abstract

          The TINU syndrome (tubulointerstitial nephritis and uveitis) was first described by Dobrin et al. in 1975. Since then, more than 50 cases have been documented each with diverse immunopathogenetic and genetic characteristics. The aim of this report is to describe a case of TINU associated with reduced complement levels. We profile a 48-year-old white female with persistently reduced C4 complement levels during the acute phase of the pathology and with an unaltered immunologic profile. Renal biopsy evidenced a significant lymphocytic interstitial infiltration. Immunohistochemical studies of the interstitium infiltrates was positive for the presence of the T (CD3) markers (CD4 > CD8). Steroid therapy yielded a complete regression of the symptomatology with normalization of the complement levels. We suggest that it is possible to hypothesize that the various immunologic alterations associated with TINU, including the transient reduction complement levels, may be secondary to multiple inflammatory mechanisms which express themselves throughout the pathology.

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          Most cited references 1

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          Abnormal Distribution of Mesangium-Specific Laminin in Glomeruli of Patients with Idiopathic Membranous Nephropathy

          Using a monoclonal antibody, the distribution of the mesangium-specific laminin that binds only to the mesangium in normal kidney, was studied immunohistochemically in renal tissues obtained from patients with different glomerulonephritides including idiopathic membranous nephropathy. In minimal change nephrotic syndrome and IgA nephropathy, the mesangium-specific laminin staining was restricted to the mesangium, as is observed in the normal kidney. However, in patients with idiopathic membranous nephropathy, the monoclonal antibody against the mesangium-specific laminin reacted with the glomerular peripheral capillary walls including subepithelial protrusions or ‘spikes’, as well as with the mesangium. These results suggest that the quality of laminin produced in response to the challenge of immune deposits in the peripheral capillary walls may be different from that in the rest of the glomerular basement membrane in idiopathic membranous nephropathy.
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            Author and article information

            Journal
            NEF
            Nephron
            10.1159/issn.1660-8151
            Nephron
            S. Karger AG
            1660-8151
            2235-3186
            2001
            2001
            10 October 2001
            : 89
            : 3
            : 340-341
            Affiliations
            aDepartment of Nephrology and Dialysis, Monselice Hospital, Monselice; bDepartment of Nephrology and Dialysis, S. Bortolo Hospital, Vicenza, and cInstitute of Pathology, S. Bortolo Hospital, Vicenza, Italy
            Article
            46096 Nephron 2001;89:340–341
            10.1159/000046096
            11598400
            © 2001 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: 1, References: 7, Pages: 2
            Product
            Self URI (application/pdf): https://www.karger.com/Article/Pdf/46096
            Categories
            Case Report

            Cardiovascular Medicine, Nephrology

            TINU syndrome, Iridocyclitis, Complement levels

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