Reactive O2 species molecules involve peroxide (H2O2) and superoxide anions (O2 with unpaired electron) these molecules are extremely harmful to the cell. The toxicity could be explained through the tendency of those molecules to bind or damage important biomolecules. Also, they evaluated the immunohistochemical expression of GSH on pre-treatment biopsies, https://sethbcyuq.blogdun.com/32831144/little-known-facts-about-glutathione-injection