Evidence for association between insulin resistance and premature carotid atherosclerosis in childhood obesity.
Pediatr Res
; 61(3): 345-9, 2007 Mar.
Article
in En
| MEDLINE
| ID: mdl-17314695
ABSTRACT
The present study was undertaken to determine the presence and predictors of the subclinical atherosclerosis in obese children. Fifty obese children [mean age 11.7 +/- 2.5 y, mean body mass index (BMI) 28.2 +/- 4.0 kg/m] and 50 age- and sex-matched healthy nonobese controls (mean age 11.4 +/- 3.73 y, mean BMI 17.6 +/- 3.0 kg/m) were enrolled in the present study. Oral glucose tolerance test was performed to all obese subjects. Common carotid artery intima-media thickness (IMT) was measured by high-resolution B-mode ultrasonography. Carotid artery IMT was significantly increased (0.0476 +/- 0.007 versus 0.033 +/- 0.011 cm; p < 0.001) in the obese group. There were significant relations between carotid artery IMT and insulin sensitivity indexes derived from fasting samples (fasting glucose to insulin ratio (FGIR; p = 0.004, r = -0.404), quantitative insulin-sensitivity check index (QUICK-I; p = 0.002, r = -0.401) and homeostasis model assessment of insulin resistance (HOMA-IR; p = 0.034, r = 0.300) in the obese group. In a multivariate regression model, QUICK-I emerged as independent correlates for mean IMT in obese children with the total variance explained being 20.7% (beta = -0.58, p < 0.001). We concluded that insulin resistance is an independent risk factor for increased carotid artery IMT in obese children.
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Collection:
01-internacional
Database:
MEDLINE
Main subject:
Insulin Resistance
/
Carotid Artery Diseases
/
Obesity
Type of study:
Etiology_studies
/
Observational_studies
/
Prognostic_studies
/
Risk_factors_studies
Limits:
Adolescent
/
Child
/
Female
/
Humans
/
Male
Language:
En
Journal:
Pediatr Res
Year:
2007
Document type:
Article
Affiliation country:
Turkey