Abstract
Background
Matrix metalloproteinase-3 (MMP-3) is expressed in human coronary atherosclerotic lesions and is known to be involved in the degradation of plaque. This study examines the association of MMP-3 gene promoter 5A/6A and -709A>G polymorphisms with coronary artery calcium scores in type 2 diabetes patients.
Methods
The study comprises 140 type 2 diabetes patients aged 34~85 years, who showed no evidence of clinical cardiovascular disease before recruitment. Recruitment was based on patient's coronary artery calcium (CAC) scores and polymorphisms were identified.
Results
Multiple regression analysis showed that the CAC scores were significantly associated with age (P = 0.008), waist circumference (P = 0.03), duration of diabetes (P = 0.003) and the serum creatinine level (P = 0.012). MMP-3 5A/6A and -709A>G polymorphisms were not associated with CAC across all subjects. However, in the subgroup with a duration of diabetes over 10 years, MMP-3 -709A>G were significantly associated with CAC (P = 0.037) adjusted for age, body mass index, waist circumference and duration of diabetes.
Figures and Tables
Table 1
*Median and interquartile ranges of hs-CRP, microalbumin, CAC scores. BMI, body mass index; BP, blood pressure; Ca × P, calcium phosphorus product; FBS, fasting blood sugar; HbA1c, hemoglobin A1c; HDL, high density lipoprotein; hs-CRP, high sensitivty C-reactive protein; LDL, low density lipoprotein.
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