Overweight and obesity-induced oxidative stress in children.
Biomed Environ Sci
; 19(5): 353-9, 2006 Oct.
Article
em En
| MEDLINE
| ID: mdl-17190187
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 3-carotene (P-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, P-CAR, SOD, CAT and MDA in the HC group, the average values of VC, VE, 3-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, P-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, P-CAR, SOD, CAT, and MDA in 85 OOC was Y= 27.0041 + 0.2541MDA - 2.1448beta-CAR - 0.0090CAT, where F= 43.8088, P<0.001, r = 0.7866, r(2)= 0.6187, adjusted r(2)= 0.6046. The findings from the reliability analysis for VC, VE, P-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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Base de dados:
MEDLINE
Assunto principal:
Estresse Oxidativo
/
Obesidade
Tipo de estudo:
Observational_studies
/
Prognostic_studies
Limite:
Adolescent
/
Child
/
Child, preschool
/
Female
/
Humans
/
Male
Idioma:
En
Revista:
Biomed Environ Sci
Assunto da revista:
SAUDE AMBIENTAL
Ano de publicação:
2006
Tipo de documento:
Article
País de afiliação:
China