Clinical medicine & research · 2014
Factors associated with early platelet activation in obese children.
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Gómez García Anel, Núñez Guillermina García, Sandoval Martha Eva Viveros, Castellanos Sergio Gutierrez, Alvarez Aguilar Cleto
Аннотация
OBJECTIVE: To investigate the factors associated with platelet activation in obese children.
DESIGN: Cross-sectional study.
SETTING: Department of Pediatrics of Regional Hospital N∘ 1 of Mexican Institute of Social Security in Morelia, Michoacán, Mexico.
PARTICIPANTS: 79 obese and 64 non-obese children between the ages of 5 and 10 years.
MAIN OUTCOMES MEASURES: Obese children (body mass index [BMI] >85 in growth curves for Centers for Disease Control/National Center for Health Statistics), and the control group of 64 non-obese children (percentile <85), % body fat, platelet activation was assessed by sP-selectin. Other measures were leptin, uric acid (UA), von Willebrand Factor (vWF), plasminogen activator inhibitor (PAI-1), lipid profile, and glucose.
RESULTS: Obese children displayed higher plasma sP-selectin, leptin, PAI-1, and vWF than non-obese children. In the univariate logistic regression analysis, leptin, vWF, UA, and high density lipoprotein (HDL), but not with PAI-1, were factors associated with platelet activation. By stepwise linear regression analysis adjusted by sex and age, the best predictor variables for platelet activation were leptin (β:0.381; t:4.665; P=0.0001), vWF (β:0.211; t:2.926; P=0.004), UA (β:0.166; t:2.146; P=0.034), and HDL (β:-0.215; t:-2.819; P=0.006).
CONCLUSIONS: Obese children have a higher risk of developing early platelet activation. Factors associated with platelet activation were Leptin, vWF, UA, and HDL. Further studies involving larger numbers of patients over a longer duration are needed to understand the possible molecular mechanism underlying the association between leptin, vWF, and UA and endothelial activation and/or endothelial damage/dysfunction in obese children and its influence in cardiovascular disease in adults.
DESIGN: Cross-sectional study.
SETTING: Department of Pediatrics of Regional Hospital N∘ 1 of Mexican Institute of Social Security in Morelia, Michoacán, Mexico.
PARTICIPANTS: 79 obese and 64 non-obese children between the ages of 5 and 10 years.
MAIN OUTCOMES MEASURES: Obese children (body mass index [BMI] >85 in growth curves for Centers for Disease Control/National Center for Health Statistics), and the control group of 64 non-obese children (percentile <85), % body fat, platelet activation was assessed by sP-selectin. Other measures were leptin, uric acid (UA), von Willebrand Factor (vWF), plasminogen activator inhibitor (PAI-1), lipid profile, and glucose.
RESULTS: Obese children displayed higher plasma sP-selectin, leptin, PAI-1, and vWF than non-obese children. In the univariate logistic regression analysis, leptin, vWF, UA, and high density lipoprotein (HDL), but not with PAI-1, were factors associated with platelet activation. By stepwise linear regression analysis adjusted by sex and age, the best predictor variables for platelet activation were leptin (β:0.381; t:4.665; P=0.0001), vWF (β:0.211; t:2.926; P=0.004), UA (β:0.166; t:2.146; P=0.034), and HDL (β:-0.215; t:-2.819; P=0.006).
CONCLUSIONS: Obese children have a higher risk of developing early platelet activation. Factors associated with platelet activation were Leptin, vWF, UA, and HDL. Further studies involving larger numbers of patients over a longer duration are needed to understand the possible molecular mechanism underlying the association between leptin, vWF, and UA and endothelial activation and/or endothelial damage/dysfunction in obese children and its influence in cardiovascular disease in adults.