کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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6223457 | 1607465 | 2013 | 6 صفحه PDF | دانلود رایگان |
ObjectiveTo determine if elevated plasma γâ²-fibrinogen, typically involved in the formation of fibrinolysis-resistant clots, confers an increased risk for cardiovascular disease (CVD) and thrombosis in children as it does in adults. Although obesity-related hyperfibrinogenemia is frequently reported in children, the role of γⲠfibrinogen and its response to physical activity-based lifestyle are less clear in this population.Study designIn a randomized controlled 3-month physical activity-based lifestyle intervention, γⲠfibrinogen concentration was measured in 21 children (aged 14-18 years; Tanner stage > IV), including 15 in the obese group and 6 in the normal weight group, with body mass index percentiles for age and sex of >95 and <85, respectively.ResultsThe relationships between γⲠfibrinogen and other risk factors for CVD, such as markers of insulin resistance and subclinical inflammation, along with body composition (as measured by dual-energy X-ray absortiometry), were assessed before and after the intervention. γⲠfibrinogen concentration was higher in the obese group compared with the normal weight group (P < .05) and was correlated with other risk factors for CVD (adjusted R2 = 0.9; P < .05), and insulin emerged as the major predictor of γⲠfibrinogen. The intervention reduced γâ²-fibrinogen concentration (P < .05).ConclusionOur data reveal: (1) elevated γⲠfibrinogen concentrations in obese insulin-resistant children compared with normal lean controls; (2) a relationship between γⲠfibrinogen and other CVD risk factors; and (3) physical activity-induced reduction in γⲠfibrinogen in obese children.
Journal: The Journal of Pediatrics - Volume 163, Issue 2, August 2013, Pages 333-338