Relation of oxidant-antioxidant imbalance with disease progression in patients with asthma.

Abstract:

CONTEXT:Asthma is a chronic airway disorder which is associated to the inflammatory cells. Inflammatory and immune cells generate more reactive oxygen species in patients suffering from asthma which leads to tissue injury. AIMS:To investigate the role of oxidant-antioxidant imbalance in disease progression of asthmatic patients. SETTINGS AND DESIGN:In this study, 130 asthmatic patients and 70 healthy controls were documented. METHODS:For this malondialdehyde level, total protein carbonyls, sulfhydryls, activity of superoxide dismutase (SOD), catalase, glutathione peroxidase (GPx), total blood glutathione, and total antioxidant capacity (FRAP) were measured. STATISTICAL ANALYSIS USED:Analysis of the data was done using unpaired student t test and one-way ANOVA analysis. P < 0.05 was considered significant. RESULTS:The present work showed that the systemic levels of MDA (4.19 ± 0.10 nmol/ml, P < 0.001) and protein carbonyls (1.13 ± 0.02 nmol/mg, P < 0.001) were found to be remarkably higher in asthmatic patients while protein sulfhydryls (0.55 ± 0.01 mmol/l, P < 0.05) decreased as compared to controls (2.84 ± 0.12 nmol/ml, 0.79 ± 0.02 nmol/mg and 0.60 ± 0.02 mmol/l, respectively). We also observed decrease in activities of SOD (2047 ± 50.34 U/g Hb, P < 0.05), catalase (4374 ± 67.98 U/g Hb, P < 0.01), and GPx (40.97 ± 1.05 U/g Hb, P < 0.01) in erythrocytes compared to control (2217 ± 60.11 U/g Hb, 4746 ± 89.94 U/g Hb, and 48.37 ± 2.47 U/g Hb, respectively). FRAP level (750.90 ± 21.22 μmol/l, P < 0.05) in plasma was decreased, whereas total blood glutathione increased (0.94 ± 0.02 mmol/l, P < 0.05) as seen in control (840.40 ± 28.39 μmol/l and 0.84 ± 0.04 mmol/l). CONCLUSIONS:This work supports and describes the hypothesis that an imbalance between oxidant-antioxidant is associated to the oxidative stress which plays a significant role in severity of the disease.

journal_name

Ann Thorac Med

authors

Ahmad A,Shameem M,Husain Q

doi

10.4103/1817-1737.102182

subject

Has Abstract

pub_date

2012-10-01 00:00:00

pages

226-32

issue

4

eissn

1817-1737

issn

1998-3557

pii

ATM-7-226

journal_volume

7

pub_type

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