FREE RADICALS IN DIAGNOSTIC MEDICINE A Systems Approach to Laboratory Technology, Clinical Correlations, and Antioxidant Therapy ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY Editorial Board: NA THAN BACK, State University of New York at Buffalo IRUN R. COHEN, The Weizmann Institute of Science DA VID KRITCHEVSKY, Wistar Institute ABEL LAJTHA, N. S. Kline Institute for Psychiatric Research RODOLFO PAOLETTI, University of Milan Recent Volumes in this Series Volume 360 ARTERIAL CHEMORECEPTORS: Cell to System Edited by Ronan G. O'Regan, Philip Nolan, Daniel S. McQueen, and David J. Paterson Volume 361 OXYGEN TRANSPORT TO TISSUE XVI Edited by Michael C. Hogan, Odile Mathieu-Costello, David C. Poole, and Peter D. Wagner Volume 362 ASPARTIC PROTEINASES: Structure, Function, Biology, and Biomedical Implications Edited by Kenji Takahashi Volume 363 NEUROCHEMISTRY IN CLINICAL APPLICATION Edited by Lily C. Tang and Steven J. Tang Volume 364 DIET AND BREAST CANCER Edited under the auspices of the American Institute for Cancer Research; Scientific Editor: Elizabeth K. Weisburger Volume 365 MECHANISMS OF LYMPHOCYTE ACTIVATION AND IMMUNE REGULATION V: Molecular Basis of Signal Transduction Edited by Sudhir Gupta, William E. Paul, Anthony DeFranco, and Roger Perlmutter Volume 366 FREE RADICALS IN DIAGNOSTIC MEDICINE: A Systems Approach to Laboratory Technology, Clinical Correlations, and Antioxidant Therapy Edited by Donald Armstrong Volume 367 CHEMISTRY OF STRUCTURE-FUNCTION RELATIONSHIPS IN CHEESE Edited by Edyth L. Malin and Michael H. Tunick Volume 368 HEPATIC ENCEPHALOPATHY, HYPERAMMONEMIA, AND AMMONIA TOXICITY Edited by Vicente Felipo and Santiago Grisolia A Continuation Order Plan is available for this series. A continuation order will bring delivery of each new volume immediately upon publication. Volumes are billed only upon actual shipment. For further information please contact the publisher. FREE RADICALS IN DIAGNOSTIC MEDICINE A Systems Approach to Laboratory Technology, Clinical Correlations, and Antioxidant Therapy Edited by Donald Armstrong State University of New York at BuffaJo BuffaJo, New York SPRINGER SCIENCE+ BUSINESS MEDIA, LLC Library of Congress Cataloging in Publication Data On file Proceedings of an International Symposium on Free Radicals in Diagnostic Medicine: A Systems Approach to Laboratory Technology. Clinical Correlations. and Antioxidant Therapy. held October 7-9. 1993. in Buffalo. New York ISBN 978-1-4613-5742-1 ISBN 978-1-4615-1833-4 (eBook) DOI 10.1007/978-1-4615-1833-4 © 1994 Springer Science+Business Media New York Originally published by Plenum Press, New York in 1994 Softcover reprint of the hardcover 1s t edition 1994 All rights reserved No part of this book may be reproduced. stored in a retrieval system. or transmitted in any form or by any means. electronic. mechanical. photocopying. microfilming, recording, or otherwise. without written permis sion rrom the Publisher ACKNOWLEDGEMENTS Support from the following sponsors are gratefully acknowledged: MAJOR CORPORATE SPONSORS Marion Merrell Dow Institute de Recherches Internationales Servier and Servier International, France Eastman Kodak Company, Clinical Products Division La Haye Laboratories, Inc. DDI Pharmaceuticals, Inc. Upjohn Laboratories, Clinical Research Division Research Institute on Addictions Sanofi winthrop Pharmaceuticals Roche Diagnostic Systems, Inc. Pfizer Pharmaceutical Company Otsuka America Pharmaceutical Company Ono Pharmaceutical Company, Japan Merck & Company, Inc., Human Health Division Hoffman LaRoche, Inc. The Henkel Corporation, Fine Chemicals Division Hamamatsu Photonics Systems, Japan Eisai Company, Ltd., Japan Cayman Chemical Company Boehringer Mannheim Corporation 3M Pharmaceuticals Clinico PharmacoKinetics Laboratory, The Millard Fillmore Hospital, Buffalo, NY OTHER CORPORATE SPONSORS Empire Imaging Systems FRESA BioMedical Laboratories, Inc. JM Science, Inc. Miles, Inc., Diagnostic Division Shimadzu Scientific Instruments, Inc. S1M - American Instruments and Milton Roy Company Roswell Park Cancer Institute VERIS Vitamin E Research and Information Science ORGANIZATIONS University at Buffalo Roswell Park Cancer Institute American Association of Clinical Chemistry, Upstate NY Section The Organizing Committee wishes to thank G. Alan Stull, Dean of the School of Health Related Professions, University at Buffalo and James Karr, Chief of the Office of Scientific Administration, at Roswell Park Cancer Institute for their introductory remarks on the relevance and timeliness of this topic and to the following individuals who graciously gave of their time to serve as Moderators of the various sessions: Harold Box, Ph.D., Chairman, Department of Biophysics, Roswell Park Cancer Institute; David Hohnadel, Ph.D., President, National Academy of Clinical Biochemistry; Joseph IZzo, M.D., Chairman, Department of Medicine, The Millard Fillmore Hospitals and University at Buffalo; v Gerald Louge, M.D., Chief of Staff, The Veterans Administration Medical Center of Buffalo; John Naughton, M.D., Vice President for Clinical Affairs and Dean of the School of Medicine and Biomedical Sciences, University at Buffalo; Kyu Shin, M.D., Chief of Radiation Medicine, Roswell Park Cancer Institute; John Wright, M.D., Chairman, Department of Pathology, University at Buffalo and Lloyd Horrocks, Ph.D., Department of Biochemistry, The Ohio State University and Editor of the Journal of Molecular and Cellular Neurochemical Pathology. We also extend our special appreciation to Richard Stockton, Ph.D., Gail Bersani and Arthur Michalek, Ph.D. and Debbie Holden for assistance with other organizational matters, to LuAnn Kaite and Debbie Murello for typing and their help with numerous details before, during and after the Symposium and to Marion Merrell Dow, Inc. for a generous educational grant to produce the conference program and abstract booklet. The University at Buffalo Health Science Library, serving as a resource for the Middle Atlantic Region of the National Network Libraries and Medicine, provided a MEDLINE search for participants. PREFACE An International Syaposiua on Free Radicals in Diagnostic Medicine was co-sponsored by the state University of New York at Buffalo, Roswell Park Cancer Institute, and the Upstate NY Section of the American Association of Clinical Chemistry. The theme was "A Systems Approach To Laboratory Technology, Clinical Correlations And Antioxidant Therapy." The symposium was held on October 7-8, 1993 at the Hyatt Hotel and on October 9 at Roswell Park Cancer Institute, Buffalo, New York. This proceedings volume contains chapters from platform presentations, poster sessions and from invited special lectures in the areas of basic science, clinical applications and efficacy of treatment. A Special Lecture on the relevance of free radical analysis to clinical medicine was presented by Professor Kunio Yagi of Japan. The Yagi procedure to measure thiobarbituric acid (TBA) reaction reflects the amount of reactive substances, lipid peroxides and aldehydes, in the sample. For example, normal subjects will have less than 4 nmol/ml of serum lipid peroxides, while a person with diabetes generally has equal or greater than 5.0 and a diabetic person with vascular complications often exceeds 7.5 nmol/ml. Serum TBA is a clinically important measure that relates to aging, gender and estrogen as an antioxidant, in the prognosis for vascular disorders, and in pathological conditions relative to the amount of lipid peroxidation. The BASIC SCIENCES portion of the program examined: "Mechanisms of Action, Pathophysiology and Laboratory Tests" in six presentations. Free radicals in normal physiology, phagocytosis and necrosis was presented by Professor Mary Treinen Moslen who emphasized that free radicals are continually formed in biology and most abundantly by the mitochondrial-electron transport chain reactions. Free radical generation is enhanced by radiation, inflammation, and by the ischemic reperfusion process. Three stages identified are: initiation, detoxification and membrane propagation reactions, and decomposition of membrane into smaller aldehydes. Chromosomal damage in Bloom's Syndrome was examined by Professor Thomas Nicotera as a cellular model to study chronic superoxide anion stress. Hypotheses were raised of cells deficient in enzyme activities to detoxify superoxide and/or overprotection of superoxide radical. Clinical correlates are seen in: neoplasia, neurologic disease, short stature, sensitivity to sunlight and predisposition to diabetes. Professor Donald Armstrong presented an analysis of free radicals and related compounds in the clinical laboratory. He emphaSized that it is nearly impossible to read the literature today without finding involvement of oxidative stress and oxygen free radical (OFR) generation. Dr. Armstrong gave a detailed presentation of assays and methodologies within the province of the modern hospital clinical laboratory to approach the quantitation of free radical biology status and the numerical documentation of oxidative stress. Thus, clinical laboratories have an important role in the application of free radical measurement methods. State of the art of free radical testing was discussed by Dr. Charles Pippenger. Enzymes relating to OFR generation and antioxidant defense vii systems are present in a wide variety of tissues and reflect genetic characteristics; their levels are modified by environmental and disease factors. Laboratory quality control and standards were emphasized with recognition of a certain biologic variability. This type of clinical laboratory data applied to population studies can be utilized as information to improve health care. Examples include: (1) Ashkenazi Jews carry low SOD levels, (2) OFR mediated disease precursor that takes years to develop may be present in "normal" populations, and (3) after 60 years of age, OFR scavenging enzymes decline even with vitamin supplementation. In comment, Professor Joseph L. Izzo, Jr. Chairman of this session, observed that there will be resistance to reimbursement of OFR clinical laboratory studies until we demonstrate that the test result alters therapy and physician decision making behavior to change what we do for the patient. Two CLINICAL SCIENCE sections addressed organ specific disorders and systeaic invo1veaent. Dr. Domenico Pellegrini-Giampietro began with a talk on Neurological Disease. The brain is vulnerable to OFR damage because it: (1) has 1/5 of cardiac output, (2) is lipid rich, (3) poor in catalase activity, and (4) several areas of brain are rich in iron but cerebral spinal fluid transferrin is low. Radical production is associated with many neurologic diseases including: Parkinson's, tardive dyskinesia, Schizophrenia, Down's and Alzheimer's. OFR production is linked to glutamate receptor excitation. If a molecule can be designed that is a glutamate receptor antagonist and also has scavenger properties this would be useful to prevent neuronal cell death in ischemia. Ocular Disease was presented by Professor Robert Anderson. Cataracts, retinopathy, light damage, age-related macular degeneration (ARMO) are all OFR associated. Lens clarification depends on maintaining a reducinq environment. Cigarette smoking increases cataract risk (there are 1017 radicals in one puff of a cigarette). High oxygen levels may damage the retina and this is of special concern in pre-term infants who are deficient in vitamin E (with 10% of full term levels). With aging there is a greater susceptibility to OFR damage. ARMO is the leading cause for blindness in persons over 50 years of age. Endocrine Disease was discussed by Professor Paresh Dandona who in discussing thyroid hormone experiments raised the precautionary note that in vitro chemistry data may show striking differences from in vivo biological data. For example, an in vitro antioxidant may cause increased oxygenation in vivo through metabolic and other factors. In commenting on other diseases he noted that diabetics have much higher 8- hydroxy quanosine (4 to 5 x) than normal controls and also greater DNA damage in mononuclear cells. Oophorectomy increases OFR levels and estrogen hormone replacement therapy (HRT) decreases OFR levels. When small amounts of endotoxin (4ng/kg) are given to volunteers there is an increased plasma TNF alpha and IL-6, and increased OFR generation by chemiluminescence not withstanding a concomitant increased glucocorticoid level. Cutaneous Disease was discussed by Professor Alice Pentland to complete the first of the three-day symposia. This presentation dealt with oxygen free radicals (OFR), the electromagnetic spectrum, clinical considerations, photochemistry and molecular aspects of tissue injury and repair. Cardiac Disease was presented by Professor Roberto Ferrari. This presentation included discussion of defenses against OFR toxicity, sources of OFR, detection and oxidative damage. Problems relating to measurements (indices) of oxidative stress in the clinical setting were discussed together with the need for more specific data and knowledge to most effectively conduct clinical therapy trials. Vascular Disease was presented by Professor Peter Reaven who examined the role of oxidized low density lipoprotein (LDL) together with the dynamic/kinetic dimensions they activate which leads to cytokine release, macrophage accumUlation, passage of LDL through the endothelial barrier and finally to endothelial cell damage and plaque formation. This presentation also examined factors that affect LDL oxidation and discusses methodologies to determine in vivo oxidation. viii Hemolytic Disease was the subject of the presentation by Professor Edward J. Lesnefsky, Jr. This discourse looked at clinical syndromes, target organs, and examined in substantial detail the two categories of iron pools: (1) transferrin bound and (2) non-transferrin pool bound to ammonium citrate. The former is non-toxic and the latter produces disease since iron is insoluble without ligand. Organ dysfunction, increased susceptibility to ischemia-reperfusion injury and methods of therapy by phlebotomy, chelation and antioxidants were also discussed. Infertility was discussed by Professor Claude Gagnon who presented the role of reactive oxygen species (ROS) in male infertility. The mode of action of ROS was outlined and a series of experiments examining both beneficial and detrimental aspects of ROS on spermatozoa was covered. Toxic levels of ROS reduce sperm function and fertility. Yet ROS has beneficial effects to produce capacitated activity (CA) or hyperactivity (HA) giving zigzag movement to sperm and greater torque, thus greater ova membrane penetration. Leukocytes in the vagina do harm and are one cause for infertility. Renal Disease and reactive oxygen species contribution was presented by Professor Leonard Feld with both common features and differences emphasized among clinical syndromes. Resident cell populations (mesangial, endothelial, epithelial) and infiltrating cells (neutrophils, macrophages, platelets) may be involved at different renal sites (vascular, glomerular, tubular). Three models to study renal disease are: (1) anti-glomerular basement membrane (anti-GBM) which features proteinuria and beneficial effects of catalase and disferoxamine but not DMSO, and (2) membranous glomerulonephritis with decreased proteinuria from DMTU and DMSO but not catalase or SOD which suggest that hydroxyl radical is involved, and (3) puromycin nephrosis in which hypoxanthine is an intermediate step in ROS injury. Allopurinol and SOD reduce the injury but not catalase or DMSO. Free radicals in one form or another are important in each renal disease state. Liver, Pancreas and Gastric Disease were reviewed by Professor Kunio Yagi to wrap-up the second day'S platform presentations. One can identify gastric mucosal injury associated with a rise in plasma thiobarbituric acid (TBA). An experimental preparation with infusion of hypoxanthine and oxygen caused detectable mucosal injury and increased TBA. Better protection is obtained by SOD plus catalase than cimetidine and H-2 receptor blocker. THE CLINICAL SCIENCES II SESSIONS on Systemic Involvement addressed: Autoimmune Disease which was presented by Professor Jonathan Leff who commented on markers of oxidative damage in conditions such as sepsis, ARDS, AIDS, rheumatoid arthritis, hepatitis, congestive heart failure and hemolytic anemia. Polarographic catalase assay, superoxide dismutase (MnSOD) assay which is elevated prior to development of ARDS, breath hydrogen peroxide, lipid peroxide products present in blood or synovial fluid of particular relevance to rheumatoid arthritis, and reduced levels of serum antioxidants for example in AIDS were discussed. Cancer and Chemotherapy was presented by Professor Peter O'Brien who discussed mechanisms by which dietary and natural antioxidants have anti carcinogenetic actions. All antioxidants inhibit P-450 enzyme systems. categories of effects include: precursor, blocking and suppressors. Dietary constituents mentioned were: flavenoids in fruits and vegetables, medicinal plants, green tea, garlic, onions, leaks, strawberries, cabbage, etc. Free radical induced drug reactions was addressed by Dr. Charles Pippinger who focused on idiosyncratic drug reactions (lOR) which appear to be related to and controlled by genetic a profile. Specific examples include: adriamycin toxicity, valproic acid and acute hepatiC toxicity in children under 10 years, and halothane malignant hyperthermia. He brought out the concept of free radical deficiency and risk for disease. Markers for clinical laboratories are needed to identify and prevent potential IDR. ix Shock and Multiple Organ Dysfunction Syndrome (MODS) was presented by Professor Patricia Abello who brought together a coordinated presentation which connected clinical events, trigger mechanisms, acute phase responses, with the interactions and consequences of OFR. MODS is the leading cause of death in Critical Care Units. Gene expression results in acute phase and heat shock responses. In sepsis hypermetabolism precedes MODS. It is important to understand extracellular (eg.,SOD, catalase) from intracellular (e.g., DMSO, allopurinol) protective mechanisms and agents. Alcoholism and fetal alcohol syndrome was presented by Professor Consuelo Guerri who commented on mechanisms of alcohol-induced free radical (FR) formation and discussed pathways involving the cytosol, cellular fractions and the cytochrome P-450 system. The role of acetaldehyde in ethanol-induced FR production, the effects of liver anti-oxidants and oxidative stress were commented on. The fetal alcohol syndrome includes: metabolic effects, astrocyte development impairment and mental retardation. Oxidative stress and aging was presented by Dr. Richard Cutler who discussed this topic in terms of: 1) the problem that humans may be living longer than genetically programmed with advances in life span compared to previous periods over past 50,000 years, 2) organ function peaks at the onset of sexual maturity and underpoes a steady rate of decline thereafter, 3) elimination of major causes of death effects aging. and 4) comparative life spans in nature and models that correlate oxidative stress and antioxidant defense mechanisms. THERAPEUTIC INTERVENTIONS: Inhibitors of Pree Radical Reactions. vitamin B - Professor Jeffrey Blumberg. There are age-related changes to decrease immune mechanisms such as T-cell responses which translates to a greater incidence of infectious disease and risk of morbidity and mortality. Vitamin E improves the immune response index. There is evidence of vitamin E deficiency in certain elderly populations. Gliclazide - Professor Paul Jennings. Diabetes Mellitus is associated with cardiovascular complications in which prevalence correlations with duration of disease. Therapeutic strategies to prevent premature death include: diet, exercise, no smoking, and glucose control. Gliclazide (glyburide), a sulfonyl urea, increases insulin secretion by ~ cell and decreases platelet adhesiveness; the actions decrease platelet aggregation, increase tissue plasminogen activator (tPA) and fibrinolysis, decrease oxidative stress and lipid peroxidation. Beraprost and aminoguanide - Professor Paresh Dandona. The culprit cell in the atherosclerotic plaque is the monocyte that undergoes adhesion and penetration into the vascular wall, imbibes oxidized low-density lipoprotein (LDL), is transformed into the foam cell with capacity for excreting reactive materials; this forms the fatty streak. A further stage of endothelial damage will result in the beginning of a mural thrombus. Oxidation of LDL is a calcium - dependent process. Beraprost and Aminoguanidine are inhibitory to free radical generation. LDL oxidation is inhibited by Aminoguanidine. Clinical trials are in progress to test the potential beneficial effects of these drugs. Carotenoids and other Vitamins - Dr. Wolfgang Schalch. There is epidemiological evidence for cardiovascular disease risk reduction associated with increased dietary carotene; 30% decrease in coronary heart disease risk (NEJM 328;1450,1993), and 50% decrease in major cardiovascular events (Circ. Supplement 82: 111 -201, 1990). There is also potential mechanism of cancer risk reduction and decreased cataracts. In China a Nutrition International Trial with B carotene, vitamin E and selenium was initiated (J. National Cancer Institute 85: 1483 - 92, 1993). Flavenoids Professor Elliott Middleton. At low concentrations flavenoids affect mitogenesis, secretory function, and inflammatory cells. Secretagogues stimulating histamine can be inhibited by flavenoids; they also have scavenger activity against the hydroxyl and the lipid peroxide radicals. Protection against free radical damage x
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