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Effect on the expression of toll-like receptor 4 in different groups measured by immunohistochemistry (×400). (a) Sham; (b) Myocardial infarction (MI); (c) Car 2 mg/kg; (d) Car 10 mg/kg; (e) Car 30 mg/kg; (f) Data of quantitative analysis are expressed as mean ± standard deviation. *P < 0.05 versus Sham; #P < 0.05 versus MI
