Glutathione , 500 mg, 120 Veg Capsules PDF] A Novel Natural NADH and NADPH Dependent Glutathione Reductase as Tool in Biotechnological Applications Semantic Scholar Internet Scientific Publications Although G6PD deficiency, which can cause problems in red blood cells upon certain triggers, is the most common human enzyme defect, affecting over 400 million people, including over 1 in 10 Black Pentose Phosphate Pathway and Nicotinamide Adenine Dinucleotide Phosphate