Protective effects of polysaccharides from Dendrobium huoshanense on CCl4-induced acute liver injury in mice Protective effect of Isodon lophanthoides var.gerardianus on acute hepatic injury induced by carbon tetrachloride in rats Protection of Shufeng Jiedu Capsule on D-GalN/LPS-induced acute liver injury in rats Preparation of artificial antigen of hydroxysafflor yellow A