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Evaluation of oxidative and nitrosative stress in relapsing remitting multiple sclerosis

Health 2013年第11期5卷 1924-1928页

作者： Stefan Lukac Terezia Kalnovicova jana muchova Institute of Medical Chemistry Biochemistry and Clinical BiochemistryFaculty of MedicineComenius UniversityBratislavaSlovakia Department of Neurology Faculty of MedicineComenius UniversityBratislavaSlovakia

Multiple sclerosis (MS) is a chronic autoimmune disorder affecting the central nervous system (CNS) through demyelination and neurodegeneration. Several lines of evidence support a role for oxidative and nitrative stress (OS and NS) in pathogenesis of multiple sclerosis. The mechanism of influence of OS and NS on blood-brainbarrier (BBB) has critical importance for evaluating antioxidant therapies. As far as we know, markers of oxidative and nitrative stress in MS patients have been investigated independently for their relationship with the state of the blood-brain-barrier. Blood plasma samples of 58 patients with relapse-remitting MS (RRMS) with normal (Group A, n = 48, 36.2 ± 10.5 years) and damaged BBB (Group B, n = 10, 38.2 ± 11.2 years) and of 44 healthy controls (39.2 ± 14.9 years) were analyzed. TAS (total antioxidant plasma status), lipoperoxides, protein carbonyls, 3-nitrotyrosine and uric acid were evaluated in each group. Our results confirmed decreased TAS (Group A: 1.35 ± 0.55 mmol/l, P e level of lipoperoxidation positively correlated with the state of BBB (P of protein’s carbonyls (A: 0.48 ± 0.11 nmol/mg protein, P nmol/l, P ed damage to plasma proteins, what was confirmed by their positive mutual correlation (P The level of uric acid was physiological and correlated negatively with protein’s carbonyls (P 0.05) while there was no significant relationship with 3-nitotyrosine. The results suggest the role of this antioxidant in the protection of the proteins against OS what was confirmed by its positive correlation with TAS

关键词： Relapsing Remiting Multiple Sclerosis Oxidative Stress Nitrative Stress Blood-Brain-Barrier Total Antioxidant Status 3-Nitrotyrosine Protein Carbonyls Lipoperoxides Uric Acid

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