Parasites revive hope for cancer therapy European Journal of Medical Research Springer Nature Link 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 Thioredoxin Glutathione Reductase from Schistosoma mansoni: An Essential Parasite Enzyme and a Key Drug Target PLOS Medicine Thioredoxin Glutathione Reductase from Schistosoma mansoni: An Essential Parasite Enzyme and a Key Drug Target PLOS Medicine Evolutionary Adaptations of Parasitic Flatworms to Different Oxygen Tensions