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      Urinary Albumin as an Indicator of Diabetic Nephropathy Lesions in Japanese Type 2 Diabetic Patients

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          Abstract

          Caucasian type 2 diabetic patients with microalbuminuria (MA) or overt nephropathy (ON) show greater heterogeneity of renal lesions than type 1 diabetic patients. We examined whether a similar situation exists in 30 Japanese type 2 diabetic patients [21 male, age 48 ± (SD) 8 years, known duration 11 ± (SD) 8 years] without definable renal disease other than diabetic nephropathy. Six patients were normoalbuminuric (NA), 11 MA, and 13 had ON. Normal controls were 9 age-matched Japanese living-related renal transplant donors. Electron microscopic morphometry was performed on renal biopsy specimens and related to renal function. Glomerular basement membrane width and mesangial fractional volume [Vv(Mes/glom)] were increased in all type 2 diabetic patients groups (NA, MA, ON) as compared with normal controls. The Vv(Mes/glom) correlated directly with urinary albumin/creatinine. However, Vv(Mes/glom) as well as glomerular basement membrane width overlapped among the three functional categories (NA, MA, ON) and normal controls. In conclusion: (1) similar to Caucasian type 2 diabetic patients, Japanese type 2 diabetic patients have greater heterogeneity of renal structure than Caucasian type 1 diabetic patients, and (2) urinary albumin is not a reliable indicator of underlying renal structure in Japanese type 2 diabetic patients.

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          Author and article information

          Journal
          NEF
          Nephron
          10.1159/issn.1660-8151
          Nephron
          S. Karger AG
          1660-8151
          2235-3186
          2002
          June 2002
          03 June 2002
          : 91
          : 2
          : 292-299
          Affiliations
          Departments of aPediatrics and bLaboratory Medicine and Pathology, University of Minnesota Medical School, Minneapolis, Minn., USA; cDepartment of Internal Medicine, Kitasato University School of Medicine, Sagamihara, Japan
          Article
          58407 Nephron 2002;91:292–299
          10.1159/000058407
          12053068
          © 2002 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: 4, References: 35, Pages: 8
          Product
          Self URI (application/pdf): https://www.karger.com/Article/Pdf/58407
          Categories
          Original Paper

          Cardiovascular Medicine, Nephrology

          Renal lesions, Albuminuria, Diabetic nephropathy

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