Arosio, E., De Marchi, S., Zannoni, M., Prior, M., & Lechi, A
Parra, L
Cellular GSSG accumulation is limited by the fact that cells employ multiple redundant reductive pathways to reduce cytosolic GSSG or to actively export GSSG to the extracellular environment, for example by MRP1 in mammalian cells or to alternative subcellular compartments, for example by Ycf1 in yeast [21, 59]
For instance, once the concentration of hydrogen peroxide reaches levels of 10 M under stress, various enzymes participating in the C 3 cycle, like fructose-1,6-bisphosphatase, sedoheptulose-1,7-bisphosphatase, and phosphoribulokinase, show 50% reduction in their activity [49, 50]
FDA cGMP requirements for dietary supplements under 21 CFR Part 111 cover cleanliness, process controls, equipment maintenance, and quality system requirements