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  • Title: Microvascular Reactivity and Endothelial Function in Type 2 Diabetic Patients with Hyperlipidemia Treated with Simvastatin: 3-year Follow-up.
    Author: Prázný M, Kasalová Z, Mazoch J, Kvasnicka J, Skrha J.
    Journal: Prague Med Rep; 2009; 110(4):290-300. PubMed ID: 20059881.
    Abstract:
    Aim of this study was to evaluate microvascular reactivity (MVR) by laser Doppler flowmetry in Type 2 diabetes mellitus (T2DM) with hyperlipidemia during three years of simvastatin treatment. Additionally, markers of endothelium and fibrinolysis were evaluated. Twenty patients with T2DM and hyperlipidemia were treated with 20 mg of simvastatin daily for 3 months, treatment was then interrupted for 3 months (wash-out) and again started and maintained continually up to total of 36 months of follow-up. Maximal perfusion (max), velocity of perfusion increase (max/t) and percent increase of perfusion compared to baseline (%) was measured during post-occlusive reactive hyperemia (PORH) and thermal hyperemia (TH). VCAM-1, ICAM-1, E-selectin and P-selectin were used as markers of endothelium, tissue plasminogen activator (tPA) and its inhibitor (PAI-1) as markers of fibrinolysis. Baseline MVR in diabetic patients was comparable to controls. MVR decreased at months 3, 12, and 36 compared to baseline (PORHmax 26+/-12, 35+/-17, 26+/-11 vs. 56+/-30 PU, p<0.05, THmax 67+/-19, 81+/-37, 58+/-24 vs. 134+/-70 PU, p<0.01, PORHmax/t 2.0+/-1.4, 2.8+/-1.7, 1.9+/-1.3 vs. 7.7+/-7.4 PU/s, p<0.05, THmax/t 1.1+/-0.6, 1.0+/-0.4, 0.7+/-0.4 vs. 1.5+/-0.7 PU/s, p<0.05.
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