Longitudinal association between IGFBP-1 levels and parameters of the metabolic syndrome in obese children before and after weight loss

International Journal of Pediatric Obesity : IJPO : an Official Journal of the International Association for the Study of Obesity
Thomas ReinehrChristian L Roth

Abstract

Insulin-like growth factor binding protein 1 (IGFBP-1) is a marker of insulin resistance. We hypothesized that IGFBP-1 is associated with the metabolic syndrome (MetS), which is related to insulin resistance. We examined 51 obese Caucasian children (mean age 12.1 ? 2.3, 55% male, mean body mass index [BMI] 31.8 ? 4.8 kg/m(2)). Anthropometrical markers, pubertal stage, hepatic ultrasound, waist circumference, blood pressure, fasting serum IGFBP-1, IGFBP-3, IGF-I, adiponectin, leptin, transaminases, glucose, insulin, triglycerides, and HDL-cholesterol concentrations were determined at onset and the end of the one-year lifestyle intervention. In contrast to IGF-I and IGFBP-3, IGFBP-1 correlated significantly to most parameters of the MetS in cross-sectional (waist circumference: r = -0.45, triglycerides: r = -0.29; insulin: r = -0.31; HOMA: r = -0.30) and longitudinal analyses (? triglycerides: r = ?0.22; ? Insulin: r = ?0.25; ? HOMA: r = ?0.62). The association between changes of HOMA and changes of IGFBP-1 was stronger than the associations between changes of leptin or adiponectin, and changes of HOMA. The risk for the MetS was inversely related to IGFBP-1 levels (odds ratio:-0.05 per additional IGFBP-1 unit; 95% confidence inte...Continue Reading

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Jan 1, 2014·Journal of Clinical Medicine·Moira S LewittKerstin Hall
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Jun 12, 2012·Endocrinology and Metabolism Clinics of North America·David R Clemmons

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