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Síndrome Metabólica, seus fenótipos e resistência à insulina pelo HOMA-RI / Metabolic syndrome, its phenotypes, and insulin resistance by HOMA-IR
Oliveira, Ernesto P. de; Lima, Maria das Dores A. de; Souza, Mirabeau Levi A. de.
Affiliation
  • Oliveira, Ernesto P. de; Universidade Federal da Bahia. Faculdades de Farmácia. Salvador. BR
  • Lima, Maria das Dores A. de; Universidade Federal da Bahia. Medicina. Salvador. BR
  • Souza, Mirabeau Levi A. de; Universidade Federal da Bahia. Faculdades de Farmácia. Salvador. BR
Arq. bras. endocrinol. metab ; 51(9): 1506-1515, dez. 2007. graf, tab
Article in Portuguese | LILACS | ID: lil-471772
Responsible library: BR1.1
RESUMO
O diagnóstico de síndrome metabólica (SM) segundo o National Cholesterol Education Program Adult Treatment Panel III não reflete necessariamente a presença de resistência à insulina (RI), um potencial alvo terapêutico para prevenção de diabetes tipo 2 e doenças cardiovasculares. Em estudo de corte transversal, assentado em dados anteriores de prevalência, avaliamos o comportamento do HOMA-RI, um parâmetro de RI bem difundido, frente à SM e anormalidades associadas. HOMA-RI foi maior nos indivíduos com SM (2,8 ± 1,6 vs. 1,8 ± 1,4) (p < 0,001) e mostrou excelente correlação com insulinemia de jejum (rS = 0,961). HOMA-RI > 2,5 aliou bons níveis de especificidade e sensibilidade para a associação de SM e RI. Diferente de aumento da glicemia, obesidade abdominal e elevação da trigliceridemia, componentes da SM mais bem relacionados com RI, a elevação da pressão arterial e a redução do HDL-c não mostraram associação com HOMA-RI > 2,5. A demonstração de que alguns fenótipos de SM ou anormalidades associadas foram mais preditivos de RI pode apontar para a possibilidade de uso do índice como um indicador de RI associada à SM.
ABSTRACT
The diagnosis of the metabolic syndrome (MS) according to the National Cholesterol Education Program Adult Treatment Panel III does not reflect necessarily the presence of insulin resistance (IR), a potential therapeutical target for type 2 diabetes and cardiovascular disease prevention. Based on previous prevalence data, a cross-sectional study was conducted to determine the HOMA-IR relationship to the MS and some associated abnormalities. HOMA-IR > was higher in individuals with the MS (2.8 ± 1.6 vs. 1.8 ± 1.4) (p < 0.001). HOMA-IR > or = 2.5 allied good specificity and sensitivity levels for the association of MS and IR. Hyperglycemia, hypertrigliceridemia, and abdominal obesity, the MS components best related to IR, were statistically associated with HOMA-IR > 2.5, but not hypertension neither low HDL-c. The demonstration that some of MS phenotypes or associated abnormalities were more predictive for IR could point out to the possibility of the use of the index as a marker of the presence of IR associated to MS.
Subject(s)

Full text: Available Collection: International databases Health context: SDG3 - Health and Well-Being Health problem: Target 3.4: Reduce premature mortality due to noncommunicable diseases Database: LILACS Main subject: Blood Glucose / Insulin Resistance / Cardiovascular Diseases / Metabolic Syndrome Type of study: Diagnostic study / Observational study / Prevalence study / Prognostic study / Risk factors Limits: Adult / Aged / Aged, 80 and over / Female / Humans / Male Language: Portuguese Journal: Arq. bras. endocrinol. metab Journal subject: Endocrinology / Metabolism Year: 2007 Document type: Article Affiliation country: Brazil Institution/Affiliation country: Universidade Federal da Bahia/BR
Full text: Available Collection: International databases Health context: SDG3 - Health and Well-Being Health problem: Target 3.4: Reduce premature mortality due to noncommunicable diseases Database: LILACS Main subject: Blood Glucose / Insulin Resistance / Cardiovascular Diseases / Metabolic Syndrome Type of study: Diagnostic study / Observational study / Prevalence study / Prognostic study / Risk factors Limits: Adult / Aged / Aged, 80 and over / Female / Humans / Male Language: Portuguese Journal: Arq. bras. endocrinol. metab Journal subject: Endocrinology / Metabolism Year: 2007 Document type: Article Affiliation country: Brazil Institution/Affiliation country: Universidade Federal da Bahia/BR
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