Estimates of insulin sensitivity and β-cell function in children and adolescents with and without components of the metabolic syndrome
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INTRODUCTION: The accumulation of components of the metabolic syndrome (MetS) is associated with a disturbed glucose metabolism in obese children.
AIM OF STUDY: The aim of the present study was to evaluate the association between MetS and estimates of insulin sensitivity and β-cell function obtained from oral glucose tolerance test (OGTT)-derived indices in lean and obese children.
MATERIAL AND METHODS: A 2-hour OGTT was administered in 83 children aged 7-17 years. 47 children were obese and recruited from a childhood obesity clinic and 36 were lean age- and sex-matched controls. Surrogate measures of insulin sensitivity and β-cell function were assessed by the OGTT-derived indices: the Matsuda index, the insulinogenic index, and the oral disposition index. The severity of MetS was assessed by measures of waist circumference, blood pressure, and fasting levels of triglycerides, high-density lipoprotein cholesterol, and glucose.
RESULTS: The 83 children were allocated to one of three groups according to the number of components of MetS: the median body mass index standard deviation score was 0.2 (range -0.6-2.9) in the low MetS risk group (n=36), 2.8 (0.1-4.1) in the high MetS risk group (n=25), and 2.9 (2.1-4.4) in the MetS group (n=22). An increasing number of MetS components were associated with a lower insulin sensitivity and an altered β-cell function according to the Matsuda index (p<0.0001), the insulinogenic index (p<0.0001), and the oral disposition index (p=0.005).
CONCLUSIONS: Children burdened by the accumulation of components of MetS exhibited a disturbed glucose metabolism as expressed by lowered peripheral insulin sensitivity and β-cell function.
Original language | English |
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Journal | Pediatric Endocrinology, Diabetes and Metabolism |
Volume | 23 |
Issue number | 3 |
Pages (from-to) | 122-129 |
Number of pages | 8 |
ISSN | 2081-237X |
DOIs | |
Publication status | Published - 2017 |
ID: 190848003