Journal
BRAZILIAN JOURNAL OF MEDICAL AND BIOLOGICAL RESEARCH
Volume 43, Issue 7, Pages 687-693Publisher
ASSOC BRAS DIVULG CIENTIFICA
DOI: 10.1590/S0100-879X2010007500054
Keywords
Metabolic syndrome; Type 2 diabetes mellitus; Glomerular filtration rate; Modification of diet in renal disease
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The objective of this study was to evaluate the effect of metabolic syndrome (MetS) and its individual components on the renal function of patients with type 2 diabetes mellitus (DM). A cross-sectional study was performed in 842 type 2 DM patients. A clinical and laboratory evaluation, including estimated glomerular filtration rate (eGFR) calculated by the modification of diet in renal disease formula, was performed. MetS was defined according to National Cholesterol Education Program - Adult Treatment Panel III criteria. Mean patient age was 57.9 +/- 10.1 years and 313 (37.2%) patients were males. MetS was detected in 662 (78.6%) patients. A progressive reduction in eGFR was observed as the number of individual MetS components increased (one: 98.2 +/- 30.8; two: 92.9 +/- 28.1; three: 84.0 +/- 25.1; four: 83.8 +/- 28.5, and five: 79.0 +/- 23.0; P < 0.001). MetS increased the risk for low eGFR (<60 mL.min(-1).1.73 (m(2))(-1)) 2.82-fold (95% CI = 1.55-5.12, P < 0.001). Hypertension (OR = 2.2, 95% CI = 1.39-3.49, P = 0.001) and hypertriglyceridemia (OR = 1.62, 95% CI = 1.19-2.20, P = 0.002) were the individual components with the strongest associations with low eGFR. In conclusion, there is an association between MetS and the reduction of eGFR in patients with type 2 DM, with hypertension and hypertriglyceridemia being the most important contributors in this sample. Interventional studies should be conducted to determine if treatment of MetS can prevent renal failure in type 2 DM patients.
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