Injectable hydrogel with selenium nanoparticles delivery for sustained glutathione peroxidase activation and enhanced osteoarthritis therapeutics ScienceDirect PRDX6 augments selenium utilization to limit iron toxicity and ferroptosis Nature Structural & Molecular Biology Glutathione is such a critical soldier in our line of defense that our bodies make it themselves. We even have mechanisms that recycle and reuse it. But what happens when our toxic Selenium Linus Pauling Institute Oregon State University