Fig.4

The effect of vagus nerve stimulation on the ROS levels in myocardium of rats with hepatic ischemia–reperfusion injury. A Representative fluorescent images of ROS, magnification 200. Scale bar, 100 μM. B Mean fluorescence intensity of ROS. ***P < 0.001, **P < 0.01, *P < 0.05, ns P > 0.05