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Cardiovasc Drugs Ther. 2010 Feb;24(1):17-24. doi: 10.1007/s10557-009-6210-7.

Aspirin inhibits fractalkine expression in atherosclerotic plaques and reduces atherosclerosis in ApoE gene knockout mice.

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Department of Geriatrics, The Second Xiangya Hospital of Central South University, Changsha, Hunan, China.



To determine the fractalkine expression in the aorta of ApoE (-/-) mice and the effect of high-dose aspirin intervention on fractalkine expression and atherosclerotic lesion formation.


Twenty-one male ApoE gene knockout mice were randomized into three groups to receive either placebo in addition to normal mice chow (n = 7), placebo in addition to a high-fat diet (n = 7), or aspirin (58 mg/kg/d) in addition to a high-fat diet (n = 7). After 12 weeks of study, the mice were euthanized and serum cholesterol, thromboxane B(2), and 6-keto-PGF(1alpha) were examined. Fractalkine and cyclooxygenase expression in aorta were measured and the atherosclerotic lesion analyzed.


Pathology image analysis showed that the atherosclerotic plaque was the most extensive in the high-fat diet group while the addition of aspirin greatly reduced the severity of the plaque. Both RT-PCR analysis and immunohistochemical analysis showed that fractalkine expression was the strongest in the high-fat diet group and was significantly decreased by aspirin treatment. Serum thromboxane B(2) was lowered by aspirin while 6-keto-PGF(1alpha) and cholesterol remained unchanged.


The results of our study indicate that high dose aspirin can improve the atherosclerotic lesion and suppress the fractalkine expression in murine aorta.

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