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Circulation Journal
Vol. 73 (2009) No. 8 p. 1523-1530

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http://doi.org/10.1253/circj.CJ-08-0917

Vascular Medicine

Background: Because postprandial hypertriglyceridemia and hyperglycemia may promote atherosclerosis, the present study investigated the effects of a clinical dose of pitavastatin on endothelial function and blood rheology in patients with coronary artery disease (CAD) before and after eating a test meal. Methods and Results: The 16 patients with stable CAD and mild dyslipidemia and 6 age-matched healthy men as controls were recruited. In each group, forearm blood flow (FBF) was measured during postischemic reactive hyperemia and blood samples were taken before and 2 h after the test meal. Urinary 8-hydroxy-2'-deoxyguanosine (8-OHdG) was also measured. The patients were started on pitavastatin 2 mg/day. The tests were repeated after 6 months. Maximum FBF during hyperemia in the baseline fasting phase was significantly lower in CAD patients than in control subjects (P=0.040). Fasting and postprandial FBF during reactive hyperemia significantly improved after pitavastatin treatment (P<0.05 vs baseline data for each phase) associated with reduced urine 8-OHdG, increased plasma adiponectin and improved lipid profile. No significant differences in baseline rheological parameters were seen between controls and CAD patients. Conclusions: Pitavastatin significantly improved fasting and postprandial dyslipidemia and endothelial dysfunction in CAD patients, partly via reducing oxidative stress and increasing plasma adiponectin, although rheological parameters remained unchanged. (Circ J 2009; 73: 1523 - 1530)

Copyright © 2009 THE JAPANESE CIRCULATION SOCIETY

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