Oxidative stress in Portuguese children with Down syndrome GpoA Glutathione Peroxidase Links Oxidative Stress Response, Antibiotic Persistence, and Virulence in Streptococcus pneumoniae bioRxiv First line defence antioxidants superoxide dismutase (SOD), catalase (CAT) and glutathione peroxidase (GPX): Their fundamental role in the entire antioxidant defence grid ScienceDirect ROS production and scavenging. SOD: Superoxide dismutase; GPx: Download Scientific Diagram Natroceutics Glutathione Advanced 30vc Naturally Organic Comparison of Superoxide Dismutase Activity at the Cell, Organ, and Whole Body Levels Cell Biochemistry and Biophysics Springer Nature Link