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Serum paraoxonase 1 activity and oxidative stress in pediatric patients with pulmonary tuberculosis.

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Date
2014-01-01
Authors
TORUN, EMEL
GEDIK, AH
Cakir, ERKAN
UMUTOGLU, T
GOK, O
KILIC, U
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Abstract
Objectives: The aim of this study was to determine the oxidative stress and paraoxonase 1 (PON1) levels in children with pulmonary tuberculosis (TB) compared to healthy controls, and to examine the association of demographical with oxidative stress. Subjects and methods: Forty children diagnosed with pulmonary TB and 40 age- and gender-matched healthy controls were enrolled in the study. Serum total antioxidant status (TAS), total oxidant status (TOS) and PON1 levels were measured. The oxidative stress index (OSI) was calculated to indicate the degree of oxidative stress. Results: The TAS levels were lower (1.73 ± 0.5 vs. 2.54 ± 1.2 μmol Trolox Eq/l) while TOS levels were significantly higher (26.9 ± 14.4 vs. 13.4 ± 7.7 μmol H2O2 Eq/l) in the TB group than in the controls (p < 0.001). The OSI was significantly higher in the TB group than in the controls (21.2 ± 5.1 vs. 6.5 ± 4.9 units, p = 0.006). Serum PON1 levels were significantly lower in the TB group than in the controls (14.2 ± 13.2 vs. 28.4 ± 17.3 U/l, p < 0.001). The lower PON1 levels correlated with TAS and OSI levels but not with anthropometric parameters (r = 0.264, p = 0.018 and r = -0.255, p = 0.023, respectively). Conclusion: The TOS and OSI levels were higher and the TAS and PON1 levels were lower in pediatric patients with pulmonary TB when compared to healthy controls. This indicates greater oxidative stress in the patients.
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TORUN E., GEDIK A., Cakir E., UMUTOGLU T., GOK O., KILIC U., -Serum paraoxonase 1 activity and oxidative stress in pediatric patients with pulmonary tuberculosis.-, Medical principles and practice : international journal of the Kuwait University, Health Science Centre, cilt.23, ss.426-31, 2014
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