Abstract
Free radical mediated pathological processes may have a role in schizophrenia. Free radicals (oxy radicals, such as superoxide, hydroxyl ions and nitric oxide) cause cell injury, when they are generated in excess or when the antioxidant defense is impaired. Both these processes seem to be affected in schizophrenia. In this study we investigated erythrocyte superoxide dismutase (SOD) and catalase (CAT) activities as antioxidant enzymes, malondialdehyde (MDA) as a sign of lipid peroxidation in schizophrenic patients. Activities of superoxide dismutase, catalase and malondialdehyde were greater in patients compared with the control group which may reflect increased oxidative stress in the brain tissue of schizophrenics. In the patient group erythrocyte SOD and CAT activities were weakly negative correlated with MDA concentration. These data reveal that antioxidant defense mechanisms might be impaired in schizophrenic patients. These findings also provide a theoretical basis for the development of novel therapeutic strategies, such as antioxidant supplementation.
Key Words: Lipid peroxidation, Superoxide dismutase, Catalase, Schizophrenia
Full Text
The Full Text of this article is available as a PDF (439.0 KB).
References
- 1.Halliwell B. Reactive oxygen species and the central nervous system. J. Neurochem. 1992;59:1609–1623. doi: 10.1111/j.1471-4159.1992.tb10990.x. [DOI] [PubMed] [Google Scholar]
- 2.Lohr J.B. Oxygen radicals and neuropsychiatric illness: some speculations. Arch. Gen. Psychiatr. 1991;48:1097–1106. doi: 10.1001/archpsyc.1991.01810360061009. [DOI] [PubMed] [Google Scholar]
- 3.Reddy R.D., Yao J.K. Free radical pathology in schizophrenia. Prostaglandins Leukot. Essent. Fatty acids. 1996;55(1–2):33–43. doi: 10.1016/S0952-3278(96)90143-X. [DOI] [PubMed] [Google Scholar]
- 4.Cadet J.L., Kahler L.A. Free radical mechanisms in schizophrenia and tardive dyskynesia. Neuro. Sci. Biobehav. Res. 1994;18(4):457–467. doi: 10.1016/0149-7634(94)90001-9. [DOI] [PubMed] [Google Scholar]
- 5.Dusica P., Vesna T. Oxidative stress as marker of positive symptoms in schizophrenia. Facta Universitatis. Medicine & Biology. 2002;9(2):157–161. [Google Scholar]
- 6.Mahadik S.P., Scheffer R.E. Oxidative injury and potential use of antioxidants in schizophrenia. Prostag. Leuko. Ess. 1996;55:45–54. doi: 10.1016/S0952-3278(96)90144-1. [DOI] [PubMed] [Google Scholar]
- 7.Satoh K. Serum lipid peroxide in cerebrovascular disorders determined by new colorimetric method. Clin. Chem. Acta. 1978;90:37–43. doi: 10.1016/0009-8981(78)90081-5. [DOI] [PubMed] [Google Scholar]
- 8.Wasowicz W., Neve J, Peretz A. Optimised Steps in Flourimetric Determination of Thiobarbituric Acid reactive substances in serum: Importance of extraction pH and influence of sample preservation and storage. Clin. Chem. 1993;39(12):2522–2526. [PubMed] [Google Scholar]
- 9.Stocks J., Dormondy T.L. The auto oxidation of human red cell lipids induced by hydrogen peroxide. Br. J. Haematol. 1971;20:95–111. doi: 10.1111/j.1365-2141.1971.tb00790.x. [DOI] [PubMed] [Google Scholar]
- 10.Cord, Fridovich I. Superoxide dismutase on enzymatic function for erythrocumein. J. Biol. Chem. 1969;24:6049–6055. [PubMed] [Google Scholar]
- 11.Beauchamp C., Fridovich I. Superoxide dismutase: Improved assays and an assay applicable to acrylamide gels. Anal. Biochem. Review. 1971;44:276–287. doi: 10.1016/0003-2697(71)90370-8. [DOI] [PubMed] [Google Scholar]
- 12.Sun Y., Oberley L.W., Li Y. A simple method for clinical assay of superoxide dismutase. Clin. Chem. 1988;34:497–500. [PubMed] [Google Scholar]
- 13.Brannan T.S., Maker H.O., Raess I.P. Regional distribution of catalase in adult rat brain. J. Neurochem. 1981;86:307–309. doi: 10.1111/j.1471-4159.1981.tb02411.x. [DOI] [PubMed] [Google Scholar]
- 14.Sinet P.M., Heikkila R.E., Cohen G. Hydrogen peroxide production from rat brain in vivo. J. Neurochem. 1980;34:1421–1428. doi: 10.1111/j.1471-4159.1980.tb11222.x. [DOI] [PubMed] [Google Scholar]
- 15.Drabkin D.L., et al. J. Biochem. 1932;98:719–719. [Google Scholar]
- 16.Nikushkin E.V., Kryzhanovski G.N., Tupeer I.R., Bordyukov M.M., Yuzefova S.M. Blood antioxidant enzymes during epileptic activity. Bull. Ekesp. Biol. Med. 1987;3:297–299. [PubMed] [Google Scholar]
- 17.Smith C.D., Carney J.M., Sturke Reed P.E., Oliver C.N., Stadman E.R., Floyd R.A., Markesbery W.R. Excess brain protein oxidation and enzymes dysfunction in normal aging and in Alzheimer disease. Proc. Natl. Acad. Sci. USA. 1991;88:10540–10543. doi: 10.1073/pnas.88.23.10540. [DOI] [PMC free article] [PubMed] [Google Scholar]
- 18.Abdulla D.S.P., Monteiro I.I.P., Oliveira J.A.C., Bechara E.J.H. Activities of Superoxide dismutase and glutathione peroxidase in Schizophrenic and manic depressive patients. Clin. Chem. 1986;32(5):805–807. [PubMed] [Google Scholar]
- 19.Halliwell B. Oxidants and central nervous system. Some fundamental questions. Acta. Neurol. Scand. 1989;126:23–33. doi: 10.1111/j.1600-0404.1989.tb01779.x. [DOI] [PubMed] [Google Scholar]
- 20.Glenberg, A.J., Bassuk, E.L. and Schoonover, S. (1991) The practitioner's guide to Psycho active drugs. New York Plenum Publishing Co. 143.
- 21.Reddy R., Mahadik P.S., Sukdeb M., Jayasimha N.M. Enzymes of the Antioxidant Defense System in Chronic Schizophrenic Patients. Biol. Psychiatry. 1991;30:409–412. doi: 10.1016/0006-3223(91)90298-Z. [DOI] [PubMed] [Google Scholar]
- 22.Yao J.K., Ravinder D.R., Daniel P. van Kammen. Human Plasma Glutathione Peroxidase and Symptom Severity in Schizophrenia. Biol. Psychiatry. 1999;45:1512–1515. doi: 10.1016/S0006-3223(98)00184-X. [DOI] [PubMed] [Google Scholar]
- 23.Janero D.R. Malondialdehyde and thiobarbituric acid reactivity as diagnostic indices of lipid peroxidation and peroxidative tissue injury. Free radical Bio. Med. 1990;9:515–540. doi: 10.1016/0891-5849(90)90131-2. [DOI] [PubMed] [Google Scholar]
- 24.Pall H.S., Williams A.C., Blake D.R., Lunec J. Evidence of enhanced lipid peroxidation in cerebrospinal fluid of patients taking phenothiazines. Lancet. 1987;72:535–539. doi: 10.1016/s0140-6736(87)92987-4. [DOI] [PubMed] [Google Scholar]
- 25.Credie R.G., Donald E., Wiles D., Campbell G., Peterson J.R. The Nithsdale Schizophrenia Survey. XIV: Plasma lipid peroxide and serum Vitamin E levels in patients with and without tardive dyskinesia and in normal subjects. Br. J. Psychiatry. 1995;167:610–617. doi: 10.1192/bjp.167.5.610. [DOI] [PubMed] [Google Scholar]
- 26.Benedicta D., Vivian D. Oxidative injury and antioxidant vitamins E and C in Schizophrenia. Ind. J. of Clin. Biochem. 2003;18(1):87–90. doi: 10.1007/BF02867671. [DOI] [PMC free article] [PubMed] [Google Scholar]
- 27.Strunecka A., Ripova D. What can the investigation of phosphoinositide signaling system in platelets of schizophrenic patients tell us? Prostaglandins Leukot Essent Fatty Acids. 1999;61(1):1–5. doi: 10.1054/plef.1999.0063. [DOI] [PubMed] [Google Scholar]
- 28.Heales S.J.R., Barker J.E., Stewart V.C., Brand M.P., Hargreaves I.P., Land J.M., Clark J.B., Bolanos J.P. Nitric oxide energy metabolism and neurological disease. Biochem. Soc. Trans. 1997;25(3):939–943. doi: 10.1042/bst0250939. [DOI] [PubMed] [Google Scholar]