Proteína C reativa e síndrome metabólica em crianças e adolescentes obesos e não obesos: relação com consumo alimentar

• Autor(a) principal: Borba, Vanessa Vieira Lopes
• Data de Publicação: 2011
• Tipo de documento: Dissertação
• Idioma: por
• Título da fonte: Biblioteca Digital de Teses e Dissertações da UFPB
• Texto Completo: https://repositorio.ufpb.br/jspui/handle/tede/4264
• topic: Síndrome metabólica; Pediatria; Proteína C reativa; Consumo alimentar; Metabolic syndrome; Pediatrics; C-reactive protein; Food consumption; CIENCIAS DA SAUDE::NUTRICAO

The metabolic syndrome (MS) consists of a set of metabolic abnormalities, initially described in adults, but also found in the pediatric population. Its features includes: obesity, systemic arterial hypertension, dyslipidemia, glucose intolerance and insulin resistance. All these factors are related to the genetic issues, to the feeding behavior and habits of life. The Creactive protein (CRP), a marker of inflammatory activity, has been relating as a predictor of cardiovascular disease, and presents interrelations with some of the metabolic syndrome criteria. Even though this syndrome does not have consensus on its diagnosis in children and adolescents, it adapts on those criteria used for adults. This study aimed to analyze the frequency and its characteristics of the metabolic syndrome in obese and non-obese children and adolescents, correlating them with the CRP, food intake and insulin resistance. Two groups were selected, matched by age and sex: one of 65 children and adolescents between eight and fifteen years old, obese; and the other with 30 non-obese. They excluded from the sample of patients with endocrine disorders and the use of drugs that interfere in the intermediary metabolism. Anthropometrics measurements were also realized: weight, height, corporal mass index (BMI) and waist circumference, in addition to the measuring blood fissure. Biochemical measurements were also realized, the ultra-sensitive test to analyze the CRP and the determination of the insulin resistance, calculated by Homeostasis Model Assessment (HOMA-IR). Among the various proposals to the definition of the metabolic syndrome, was selected the one adapted by Cook et al. A questionnaire of frequency of food consumption was applied and processed the data by the Dietsys Program. The average value of the obese group was the age of 10,61 (#1,8) years and BMI of 28,18 (#4,13) kg/m2; already the average value of the non-obese group was the age of 10,8 (#2,1) years and BMI of 17,79 (#2,2) kg/m2. The frequency of the metabolic syndrome was 49% in obese and 6% in nonobese, no significant difference between sex, age or pubertal staging and the SM. In the obese group, the CRP, abdominal circumference, systemic blood pressure, BMI and the stacks of triglycerides, were significantly higher. Yet there were differences between LDL, fasting glucose, HOMA-IR and low levels of HDL. Comparing the mean food consumption among these groups, there was significant difference among the variables: calories, potassium, sodium, protein, fiber, zinc, magnesium. When applying the linear regression model was found a linear relationship between CRP (independent variable) and BMI (dependent variable) with p-value = 0, 0000. The same was not verified by HOMA-IR index, or with other components of MS. The metabolic syndrome seems to have obesity as epiphenomena, from which its other components are associated. CRP levels correlate directly with obesity, using BMI, which may be cast on criteria in the diagnosis of MS in this population. The insulin resistance index measured by HOMA-IR is not the parameter of metabolic syndrome in children and adolescents.