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      Changes in Antioxidant Enzyme Activity and Malondialdehyde Level in Patients with Age-Related Macular Degeneration


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          Age-related macular degeneration is the leading cause of legal blindness in the developed world, and yet its pathogenesis remains poorly understood. Oxidative stress may play a major role in the etiology and pathogenesis of age-related disorders such as age-related macular degeneration. Catalase is an antioxidant enzyme which plays an important role in the detoxification of free oxygen radicals. Malondialdehyde is a marker that shows free radical damage. We have measured the erythrocyte activity of catalase and the serum level of malondialdehyde in 30 patients with age-related macular degeneration and 60 healthy subjects. Patients with age-related macular degeneration showed significantly lower catalase activity compared to healthy subjects (p = 0.002). Plasma malondialdehyde level of the patient group was significantly higher than that of the controls (p = 0.038).

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          Most cited references6

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          Age-related macular degeneration

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            Solar radiation and age-related macular degeneration

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              Dietary carotenoids, vitamins A, C, and E, and advanced age-related macular degeneration. Eye Disease Case-Control Study Group

              J M Seddon (1994)

                Author and article information

                S. Karger AG
                June 2004
                28 April 2004
                : 218
                : 3
                : 202-206
                Departments of aOphthalmology, bMedical Biology and Genetics, cBiochemistry, and dBiostatistics, Faculty of Medicine, Mersin University, Mersin, Turkey
                76845 Ophthalmologica 2004;218:202–206
                © 2004 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.

                : 09 October 2003
                Page count
                Tables: 2, References: 35, Pages: 5
                Original Paper

                Vision sciences,Ophthalmology & Optometry,Pathology
                Age-related macular degeneration,Aging and oxidative stress,Catalase,Malondialdehyde


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