Plant Glutathione Peroxidases: Non Heme Peroxidases with Large Functional Flexibility as a Core Component of ROS Processing Mech Neutralizing the threat of excess free radicals your body's natural defense system The NEI Connection Measurement of superoxide dismutase, catalase and glutathione peroxidase in cultured cells and tissue Nature Protocols Upregulation of catalase and downregulation of glutathione peroxidase activity in the kidney precede the development of hypertension in pre hypertensive SHR Hypertension Research