Substantial evidence have shown that Danshen extracts could suppress oxidative stress by increasing the activity of superoxide dismutase (SOD), glutathione peroxidase (GSH-Px) and catalase (CAT) as well as reducing reactive oxygen species (ROS) and malondialdehyde (MDA) levels in mice diabetic renal tissue and rat paracetamol-induced liver injury [16,17,18]. Here, CAT is linked to injury.