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Serum Ang II concentration in the 4 experimental groups. The serum Ang II concentration was detected by ELISA assay at 4 weeks after the coronary artery occlusion surgery. Ang II in the model group was significantly increased compared with the control group. Ang II in the WXKL group was significantly decreased compared with the model group. Values are expressed as mean ± SD (n = 7). **P < 0.01, versus control. ΔΔ P < 0.01, versus model.
