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  • Title: Reduced expression of endothelial cell markers after 1 year treatment with simvastatin and atorvastatin in patients with coronary heart disease.
    Author: Seljeflot I, Tonstad S, Hjermann I, Arnesen H.
    Journal: Atherosclerosis; 2002 May; 162(1):179-85. PubMed ID: 11947912.
    Abstract:
    The study was aimed at investigating the effects, after treatment for 1 year, of two different statins on the levels of circulating biochemical markers of endothelial function in patients with established coronary heart disease, with the hypothesis that statins might reduce these levels. Twenty-eight patients were randomized to treatment with atorvastatin and 30 to simvastatin for 1 year. The starting dose in both groups was 20 mg/day. Soluble forms of P-selectin, E-selectin, intercellular adhesion molecule-1 (ICAM-1) and vascular cell adhesion molecule-1 (VCAM-1) were determined to assess inflammatory activity of the endothelium, and tissue plasminogen activator antigen (tPAag), von Willebrand factor and thrombomodulin for evaluation of the haemostatic function. In the total study population there were significantly reduced levels after 1 year treatment in ICAM-1 (P<0.001), E-selectin (P=0.022) and P-selectin (P<0.001), whereas a significant increase was observed in VCAM-1 (P=0.003). Almost the same pattern was seen within both groups although the increase in VCAM-1 was only seen in the simvastatin group (P=0.017). An overall reduction in tPAag was further observed (P=0.048). The reduction in proinflammatory and to some extent haemostatic markers of endothelial function after 1 year treatment with either simvastatin or atorvastatin may be indicative of a less activated state of the endothelium which possibly may contribute to modulation of the progression of atherosclerosis.
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