Involvement of glutaredoxin 1 and thioredoxin 1 in amyloid toxicity and Alzheimer's disease Cell Death & Differentiation The glutathione peroxidase Gpx4 prevents lipid peroxidation and ferroptosis to sustain Treg cell activation and suppression of antitumor immunity: Cell Reports Sigma Aldrich Glutathione Peroxidase from bovine erythrocytes, CAS 9013 66 5, lyophilized powder, 300 units mg protein 100 units Rapid and effective protocol to measure glutathione peroxidase activity Bulletin of the National Research Centre Springer Nature Link