Effects of valsartan on aortic TLR4, AT1 receptor, AT2 receptor, and p-ERK protein expression. At 14 and 28 days after surgery, protein expression of TLR4, AT1 and AT2 receptors, and p-ERK was evaluated by Western blot assay (A). Quantifications of TLR4 (B), AT1 receptor (C), AT2 receptor (D), and p-ERK (E) protein expression relative to that of β-actin. Data are shown as the mean ± SD (n=6). *p<0.05, **p<0.01 vs the control group, and △p<0.05vs the surgery group.