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http://dx.doi.org/10.3345/kjp.2009.52.7.766

Serum leptin, adiponectin and resistin levels in obese children and their correlations with insulin resistance  

Park, Min Young (Department of Pediatrics, College of Medicine, The Catholic University of Korea)
Ahn, Sun A (Department of Pediatrics, College of Medicine, The Catholic University of Korea)
Cho, Won Kyoung (Department of Pediatrics, College of Medicine, The Catholic University of Korea)
Cho, Kyoung Soon (Department of Pediatrics, College of Medicine, The Catholic University of Korea)
Park, So Hyun (Department of Pediatrics, College of Medicine, The Catholic University of Korea)
Hahn, Seung Hoon (Department of Pediatrics, College of Medicine, The Catholic University of Korea)
Jung, Min Ho (Department of Pediatrics, College of Medicine, The Catholic University of Korea)
Suh, Byung Kyu (Department of Pediatrics, College of Medicine, The Catholic University of Korea)
Publication Information
Clinical and Experimental Pediatrics / v.52, no.7, 2009 , pp. 766-771 More about this Journal
Abstract
Purpose : The objective of this study was to compare the levels of adipocytokines in obesity group with those in control group and examine their correlation with insulin resistance. Methods : We enrolled 36 obese children (male:female [M:F]=17:19; age, $9.3{\pm}1.9yrs$) with ${\geq}95^{th}$ percentile body mass indexes (BMIs) (obesity group) and 35 healthy children (M:F=16:19; age, $9.1{\pm}2.1yrs$) with $25^{th}-75^{th}$ percentile BMIs (control group). We measured the serum leptin, adiponectin, and resistin levels and insulin resistance in both the groups. Results : The weights, heights, BMIs, fasting sugar levels, insulin levels, and homeostasis model assessment for insulin resistance (HOMA-IR) values were higher in the obesity group than in the control group. As compared to the control group, the obesity group showed significantly higher leptin levels and lower adiponectin levels; no significant difference was observed in the resistin levels. The leptin/adiponectin (L/A) ratio was higher in the obesity group than in the control group. In the obesity group, HOMA-IR showed significant positive correlations with weight, height, BMI, and leptin level. However, it was not correlated with age and adiponectin and resistin levels. In the obesity group, leptin level showed significant positive correlations with age, weight, height, and BMI, while adiponectin and resistin levels showed no such correlations with the other variables. Conclusion : We suggest that adiponectin plays an important protective role against weight gain in obese children. Further, L/A ratio can be used as a parameter for predicting the prognosis of obese children.
Keywords
Leptin; Adiponectin; Resistin; Insulin Resistance; Children;
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