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      Effect of Dilazep Hydrochlorideon the Im munohistopathology of IgA Nephropathy in ddY Mice

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          Abstract

          We determined the clinical and immunopathological effects of dilazep hydrochloride (dilazep) on IgA nephropathy of ddY mice. Group I (early-treatment group, n = 10) was orally treated with 300 mg/kg body weight of this drug from 12 weeks of age until 60 weeks of age, and group II (late-treatment group, n = 10) was also treated with the same dosage of this drug from 20 weeks of age until 60 weeks of age. Group III (control group, n = 10) received drinking water. On immunofluorescence, distribution and intensity of IgA and C3 depositions in glomeruli of group I and group II animals were significantly decreased as compared with those in group III. The expression of fibronectin, laminin, or type IV collagen in glomeruli was basically similar in the three groups treated with or without dilazep. On light microscopy, the expansion of glomerular mesangial areas and the average number of intraglomerular cells were markedly decreased as compared with those in group III. The levels of urinary protein excretion in groups I and II were significantly lower than those in group III (p < 0.01 and p < 0.05). These findings suggest that treatment with dilazep might improve the clinical and immunopathological findings in IgA nephropathy of ddY mice.

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          Most cited references 3

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          Dipyridamole Inhibits Human Mesangial Cell Proliferation

          Background: Many glomerular diseases are associated with mesangial cell proliferation and the accumulation of extracellular matrix. At present, there are, however, few treatments which can inhibit these processes. The current study assessed the effects of the anti-platelet and putative anti-proliferative drug dipyridamole (DP) on the growth of human mesangial cells in vitro and their production of the extracellular matrix protein, fibronectin. Methods: Human mesangial cell proliferation, both intrinsic and stimulated by platelet-derived growth factor, was assessed using 3 H-thymidine incorporation and an MTT proliferation assay. A sandwich enzyme-linked immunosorbent assay was used to study the effects of DP on fibronectin synthesis, again in cells stimulated by transforming growth factor beta 1 and in unstimulated cells. Results: At concentrations compatible with the serum levels found in subjects consuming standard dosages, DP significantly inhibited the growth of human mesangial cells in vitro in a dose-dependent fashion. DP also abrogated the mitogenic effects of platelet-derived growth factor. It had no significant effects on the synthesis of fibronectin by these cells (either spontaneous or induced by transforming growth factor beta 1). There was no evidence of cytotoxicity. Conclusion: These data suggest that DP may have a therapeutic role in proliferative glomerulonephritis and possibly other diseases characterized by cell proliferation.
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            Effect of Mizoribine on Glomerulonephritis of Early-Stage IgA Nephropathy in ddY Mice

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              Effect of Dilazep Hydrochloride, an Antiplatelet Agent, on the Proliferation of Cultured Mouse Glomerular Mesangial Cells

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                Author and article information

                Journal
                NEF
                Nephron
                10.1159/issn.1660-8151
                Nephron
                S. Karger AG
                1660-8151
                2235-3186
                2000
                November 2000
                08 November 2000
                : 86
                : 3
                : 327-332
                Affiliations
                Division of Nephrology, Department of Medicine, Juntendo University School of Medicine, Tokyo, Japan
                Article
                45788 Nephron 2000;86:327–332
                10.1159/000045788
                11096290
                © 2000 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: 6, References: 25, Pages: 6
                Product
                Self URI (application/pdf): https://www.karger.com/Article/Pdf/45788
                Categories
                Original Paper

                Cardiovascular Medicine, Nephrology

                IgA nephropathy, Immunopathology, ddY mouse, Dilazep hydrochloride

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