Volume 19 Issue 5
Oct.  2006
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YOU-GEN ZHU, SHU-MEI ZHANG, JI-YUE WANG, WEI-QIANG XIAO, XIN-YU WANG, JUN-FU ZHOU. Overweight and Obesity-Induced Oxidative Stress in Children[J]. Biomedical and Environmental Sciences, 2006, 19(5): 353-359.
Citation: YOU-GEN ZHU, SHU-MEI ZHANG, JI-YUE WANG, WEI-QIANG XIAO, XIN-YU WANG, JUN-FU ZHOU. Overweight and Obesity-Induced Oxidative Stress in Children[J]. Biomedical and Environmental Sciences, 2006, 19(5): 353-359.

Overweight and Obesity-Induced Oxidative Stress in Children

  • Objective To investigate whether overweight and obesity might cause oxidative stress and potential oxidative damage in overweight and obese children, and to explore its possible mechanism. Methods Eighty-five overweight and obese children(OOC), and eighty-five age-matched healthy children (HC) were recruited in this case-control study. The present study analyzed spectrophotometrically vitamin C (VC), vitamin E (VE), and β-carotene (β-CAR) in plasma, as well as the activities of superoxide dismutase (SOD), catalase (CAT), and the level of malondialdehyde (MDA) in erythrocytes. Results Compared with those of VC, VE, β-CAR, SOD, CAT and MDA in the HC group, the average values of VC, VE, β-CAR, SOD, and CAT in the OOC group were significantly decreased (P<0.001), while the average value of MDA in the OOC group was significantly increased (P<0.001). The regression analysis demonstrated that VC, VE, β-CAR, SOD, and CAT were negatively correlated (P<0.05-0.01), and MDA was positively correlated with BMI (P<0.05). Fitting to the model of multiple stepwise regression of BMI on VC, VE, β-CAR, SOD, CAT, and MDA in 85 OOC was Y = 27.0041 + 0.2541MDA - 2.1448β-CAR - 0.0090CAT, where F =43.8088, P<0.001, r= 0.7866, r2= 0.6187, adjusted r2= 0.6046. The findings from the reliability analysis for VC, VE, β-CAR, SOD, CAT, and MDA used to reflect increased oxidative stress and potential oxidative damage in the OOC showed that the reliability coefficients (alpha, 6 items) = 0.7231, P<0.0001, and that the standardized item alpha = 0.9207, P<0.0001. Conclusion The present study suggests that there exists an increased oxidative stress in overweight and obese children.
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Overweight and Obesity-Induced Oxidative Stress in Children

Abstract: Objective To investigate whether overweight and obesity might cause oxidative stress and potential oxidative damage in overweight and obese children, and to explore its possible mechanism. Methods Eighty-five overweight and obese children(OOC), and eighty-five age-matched healthy children (HC) were recruited in this case-control study. The present study analyzed spectrophotometrically vitamin C (VC), vitamin E (VE), and β-carotene (β-CAR) in plasma, as well as the activities of superoxide dismutase (SOD), catalase (CAT), and the level of malondialdehyde (MDA) in erythrocytes. Results Compared with those of VC, VE, β-CAR, SOD, CAT and MDA in the HC group, the average values of VC, VE, β-CAR, SOD, and CAT in the OOC group were significantly decreased (P<0.001), while the average value of MDA in the OOC group was significantly increased (P<0.001). The regression analysis demonstrated that VC, VE, β-CAR, SOD, and CAT were negatively correlated (P<0.05-0.01), and MDA was positively correlated with BMI (P<0.05). Fitting to the model of multiple stepwise regression of BMI on VC, VE, β-CAR, SOD, CAT, and MDA in 85 OOC was Y = 27.0041 + 0.2541MDA - 2.1448β-CAR - 0.0090CAT, where F =43.8088, P<0.001, r= 0.7866, r2= 0.6187, adjusted r2= 0.6046. The findings from the reliability analysis for VC, VE, β-CAR, SOD, CAT, and MDA used to reflect increased oxidative stress and potential oxidative damage in the OOC showed that the reliability coefficients (alpha, 6 items) = 0.7231, P<0.0001, and that the standardized item alpha = 0.9207, P<0.0001. Conclusion The present study suggests that there exists an increased oxidative stress in overweight and obese children.

YOU-GEN ZHU, SHU-MEI ZHANG, JI-YUE WANG, WEI-QIANG XIAO, XIN-YU WANG, JUN-FU ZHOU. Overweight and Obesity-Induced Oxidative Stress in Children[J]. Biomedical and Environmental Sciences, 2006, 19(5): 353-359.
Citation: YOU-GEN ZHU, SHU-MEI ZHANG, JI-YUE WANG, WEI-QIANG XIAO, XIN-YU WANG, JUN-FU ZHOU. Overweight and Obesity-Induced Oxidative Stress in Children[J]. Biomedical and Environmental Sciences, 2006, 19(5): 353-359.

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