Korean Diabetes Journal 2004;28(5):392-406.
Published online October 1, 2004.
The Influence of Metabolic Syndrome on the Intima-Medial Thickness and Cardiovascular Risk Factors in Type 2 Diabetes.
Kwang Pyo Son, Young Je Chae, Tae Yu Lee, In Kyung Jeong, Mina Hur, Gu Young Jo, Young Lee, Seong Jin Lee, Chul Young Park, Ki Won Oh, Eon Kyung Hong, Hyun Kyu Kim, Jae Myoung Yu, Doo Man Kim, Sung Hee Lim, Moon Ki Choi, Hyung Jun Yoo, Sung Woo Park
1Department of Internal Medicine, Hallym University College of Medicine, Seoul, Korea.
2Department of Laboratory Medicine, Hallym University College of Medicine, Seoul, Korea.
Metabolic syndrome (MS) is usually present in type 2 DM (T2DM), and it is associated with atherosclerosis. The aim of this study is to exam the influence of MS on the intima-medial thickness(IMT) and the cardiovascular risk factors for type 2 diabetic patients. SUBJECTS AND METHODS: A cross sectional study was performed on 82 patients with Type 2 diabetes mellitus (DM) and 84 healthy controls. MS was defined according to the NCEP-ATP III criteria. Those subjects with any history of cerebro vascular accident, ischemic heart disease or acute inflammation were excluded. The cardiovascular risk factors (hsCRP, lipid profile, homocysteine, and uric acid), the status of glucose metabolism (HbA1c, fasting glucose, insulin, and HOMA-IR), the diabetic microvascular complications and the IMT at both common carotid arteries were measured. RESULTS: 1) For patients with T2DM, the levels of waist circumference, blood pressure, TG (1.7+/-1.4 vs 2.2+/-1.4 mmol/L), HDL-C (1.5+/-0.4 vs. 1.3+/-0.3 mmol/L), LDL-C (2.7+/-0.7 vs 3.1+/-0.9 mmol/L), TC/HDL-C (3.5 vs. 41), log of (hsCRP) (-0.11+/-0.4 vs 0.17+/-0.4), mean carotid IMT (0.63+/-0.12 vs. 0.74+/-0.12 mm) and max IMT (0.68+/-0.14 vs. 0.86+/-0.15 mm) were significantly different from the healthy control group. 2) The prevalence of MS in the T2DM groups was 64%. However, a decrease of the waist circumference, as measured by the modified Asian criteria, increased the crude prevalence of MS by up to 75%. 3) Diabetic patients with MS had a higher incidence of hypertension, a lower level of HDL-C, and higher levels of waist circumference, HOMA-IR, TG, and TC/HDL-C, a greater extent of microvasculopathy, an increased log (hsCRP), homocysteine, and carotid IMT than did diabetic patients without MS. 4) Among the component of MS, the presence of hypertriglyceridemia had an influence on the IMT mean and max. 5) The carotid IMT of patients with DM correlated with age, homocysteine, log (hsCRP), and uric acid on univariate analysis, and age and homocysteine we found to be independent risk factors of carotid IMT on multivariated analysis. CONCLUSION: Metabolic syndrome in subjects with glucose intolerance increases the risk of atherosclerosis.
Key Words: Type 2 DM, Metabolic syndrome, Cardiovascular risk factor, Intimamedia thickness

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