Effect of paeoniflorin on oxidative stress and energy metabolism in mice with lipopolysaccharide (LPS)-induced brain injury Mechanism of inhibition of 3, 4-dihydroxyacetophenone on LPS-induced apoptosis of RAW264.7 macrophage in mice Effect of Shenmai injection on expression and activity of heme oxygenase-1 in reperfusion injury after pulmonary ischemia in rabbits