Resistencia insulínica y otras expresiones del síndrome metabólico en niños obesos chilenos

Background: Infantile obesity is a probable risk factor for the early appearance of chronic illnesses like Type 2 Diabetes Mellitus, Dislipidemia and Hypertension. Insulin Resistance (IR) appears as the common etiological mechanism. Aim: To describe metabolic complications associated to obesity in a...

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Autores principales: Barja Y,Salesa, Arteaga Ll,Antonio, Acosta B,Ana M, Hodgson B.,M Isabel
Lenguaje:Spanish / Castilian
Publicado: Sociedad Médica de Santiago 2003
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Acceso en línea:http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0034-98872003000300003
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spelling oai:scielo:S0034-988720030003000032004-12-13Resistencia insulínica y otras expresiones del síndrome metabólico en niños obesos chilenosBarja Y,SalesaArteaga Ll,AntonioAcosta B,Ana MHodgson B.,M Isabel Child nutrition disorders Hyperinsulinemia Hyperlipidemia Hypertension Obesity Background: Infantile obesity is a probable risk factor for the early appearance of chronic illnesses like Type 2 Diabetes Mellitus, Dislipidemia and Hypertension. Insulin Resistance (IR) appears as the common etiological mechanism. Aim: To describe metabolic complications associated to obesity in a group of Chilean children and to correlate them with IR, estimated through the homeostasis model assessment index (HOMA). Subjects and methods: We studied 88 children, 12±2.4 years old. Fifty two had severe obesity, 19 were overweight, and 17 had a normal weight (body mass index z score (BMIz): 4.7±1.6, 1.7±0.5 and 0.2±0.6 respectively, p <0.001). In obese children, an oral glucose tolerance test, measuring basal and 30 min insulin levels, was performed and serum lipid levels were measured. Results: Eleven percent of the severely obese children were glucose intolerant, 67% had basal hyperinsulinemia (>20 uU/ml) and 79% had IR (HOMA >3.8). These children also had a higher prevalence of acantosis nigricans than the overweight and normal counterparts (63, 10.5 and 0% respectively, p <0.001), higher basal insulinemia: (24.4±10, 16.4±4 and 12.2±3 mU/ml respectively) and HOMA (5.3±2, 3.4±0.8 and 2.3±0.5 respectively, p <0.001). By multiple stepwise regression analysis, BMIz was the only significant predictor for basal hyperinsulinemia, HOMA and diastolic blood pressure. Age and BMIz were independent predictors for systolic blood pressure. The strongest predictor for plasma lipid levels was the family history of dislipidemia. Conclusions: Obese children have a high prevalence of metabolic complications, which are related to the severity of obesity. Most of the severely obese children have hyperinsulinism and IR. BMIz is the principal predictor for high blood pressure. Familiar history is the better predictor for dislipidemia (Rev Méd Chile 2003; 131: 259-68).info:eu-repo/semantics/openAccessSociedad Médica de SantiagoRevista médica de Chile v.131 n.3 20032003-03-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0034-98872003000300003es10.4067/S0034-98872003000300003
institution Scielo Chile
collection Scielo Chile
language Spanish / Castilian
topic Child nutrition disorders
Hyperinsulinemia
Hyperlipidemia
Hypertension
Obesity
spellingShingle Child nutrition disorders
Hyperinsulinemia
Hyperlipidemia
Hypertension
Obesity
Barja Y,Salesa
Arteaga Ll,Antonio
Acosta B,Ana M
Hodgson B.,M Isabel
Resistencia insulínica y otras expresiones del síndrome metabólico en niños obesos chilenos
description Background: Infantile obesity is a probable risk factor for the early appearance of chronic illnesses like Type 2 Diabetes Mellitus, Dislipidemia and Hypertension. Insulin Resistance (IR) appears as the common etiological mechanism. Aim: To describe metabolic complications associated to obesity in a group of Chilean children and to correlate them with IR, estimated through the homeostasis model assessment index (HOMA). Subjects and methods: We studied 88 children, 12±2.4 years old. Fifty two had severe obesity, 19 were overweight, and 17 had a normal weight (body mass index z score (BMIz): 4.7±1.6, 1.7±0.5 and 0.2±0.6 respectively, p <0.001). In obese children, an oral glucose tolerance test, measuring basal and 30 min insulin levels, was performed and serum lipid levels were measured. Results: Eleven percent of the severely obese children were glucose intolerant, 67% had basal hyperinsulinemia (>20 uU/ml) and 79% had IR (HOMA >3.8). These children also had a higher prevalence of acantosis nigricans than the overweight and normal counterparts (63, 10.5 and 0% respectively, p <0.001), higher basal insulinemia: (24.4±10, 16.4±4 and 12.2±3 mU/ml respectively) and HOMA (5.3±2, 3.4±0.8 and 2.3±0.5 respectively, p <0.001). By multiple stepwise regression analysis, BMIz was the only significant predictor for basal hyperinsulinemia, HOMA and diastolic blood pressure. Age and BMIz were independent predictors for systolic blood pressure. The strongest predictor for plasma lipid levels was the family history of dislipidemia. Conclusions: Obese children have a high prevalence of metabolic complications, which are related to the severity of obesity. Most of the severely obese children have hyperinsulinism and IR. BMIz is the principal predictor for high blood pressure. Familiar history is the better predictor for dislipidemia (Rev Méd Chile 2003; 131: 259-68).
author Barja Y,Salesa
Arteaga Ll,Antonio
Acosta B,Ana M
Hodgson B.,M Isabel
author_facet Barja Y,Salesa
Arteaga Ll,Antonio
Acosta B,Ana M
Hodgson B.,M Isabel
author_sort Barja Y,Salesa
title Resistencia insulínica y otras expresiones del síndrome metabólico en niños obesos chilenos
title_short Resistencia insulínica y otras expresiones del síndrome metabólico en niños obesos chilenos
title_full Resistencia insulínica y otras expresiones del síndrome metabólico en niños obesos chilenos
title_fullStr Resistencia insulínica y otras expresiones del síndrome metabólico en niños obesos chilenos
title_full_unstemmed Resistencia insulínica y otras expresiones del síndrome metabólico en niños obesos chilenos
title_sort resistencia insulínica y otras expresiones del síndrome metabólico en niños obesos chilenos
publisher Sociedad Médica de Santiago
publishDate 2003
url http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0034-98872003000300003
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AT acostabanam resistenciainsulinicayotrasexpresionesdelsindromemetabolicoenninosobesoschilenos
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