Effect of Dalteparin on Atherosclerotic Lesion Formation in Apolipoprotein E-Deficient Mice
2015
We aimed to investigate whether prolonged treatment with dalteparin could inhibit plaque progression. With C57BL/6J mice as the control, genetically deficient apolipoprotein E (apo E) male mice of C57BL/6J strain (apo E−/−) were randomly divided into 3 groups. The model group received no dalteparin, while the other 2 groups received dalteparin at 100 and 200 U/kg d, respectively. The aorta was harvested for hematoxylin and eosin staining to observe plaque formation and for immunohistochemical staining to detect the expression of oxidized low-density lipoprotein receptor 1 (LOX-1). The expression of LOX-1 messenger RNA was detected by reverse transcription polymerase chain reaction, while the expression of LOX-1 protein was detected by Western blotting. Dalteparin decreased aortic plaque volume and inhibited aortic LOX-1 protein expression in apo E−/− mice. The effect persisted 4 weeks after dalteparin treatment was discontinued. Dalteparin may inhibit atherosclerotic lesions by downregulating the expressi...
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