oxidised glutathione glucose 6 phosphate dehydrogenase defciency The biological effects of glucose-6-phosphate (G6PD) in Figure, Glucose-6-Phosphate Dehydrogenase (G6PD) Deficiency.
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The regulation of these enzymes is primarily governed by Nrf2, which binds to cis-acting regulatory elements to initiate the gene expression of antioxidant enzymes (64)

Zhang W, Konopleva M, McQueen T, Cortes J, McCubrey J, Andreeff M
Oxygen optode sensors: principle, characterization, calibration, and application in the ocean

The glutathione concentration found in this extracellular environment (micromolar) is lower than that found intracellularly (millimolar) by about a thousand-fold
