Atheroprotective Effects of Bilberry Extracts in Apo E-Deficient Mice
2009
Mauray, Aurelie | Milenkovic, Dragan | Besson, Catherine | Caccia, Nelly | Morand, Christine | Michel, Françoise | Mazur, Andrzej | Scalbert, A (Augustin) | Felgines, Catherine
Previous studies have demonstrated that the intake of berry foods was associated with a reduced risk of cardiovascular diseases. The aim of the present study was to evaluate the effects of two bilberry extracts, one rich in anthocyanins extracted from untreated bilberries (BE) and a second one extracted from yeast-fermented bilberries (FBE), on the development of atherosclerosis in apolipoprotein E-deficient mice (apo E−/−). Apo E−/− mice received for 16 weeks a diet supplemented with 0.02% of either BE or FBE. Atherosclerotic plaque area was measured in the aortic sinus. Supplementation of the diet with both bilberry extracts led to a significant inhibition of plaque development, whereas no effect on oxidative stress parameters or lipid profiles could be observed, suggesting the implication of other mechanisms of action. In addition, a better protection was observed with FBE, suggesting that the fermentation generates new bioactive compounds more effective in attenuating progression of the atherosclerotic lesions.
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