Glutathione Reductase (GR) The Scout for Liver Health Glucose 6 Phosphate Dehydrogenase an overview ScienceDirect Topics Figure 2 from Impact of glucose 6 phosphate dehydrogenase deficiency on the pathophysiology of cardiovascular disease. Semantic Scholar G6PD Deficiency causes Haemolytic Anaemia Glucose 6 phosphate dehydrogenase is an enzyme in the hexose monophosphate shunt that synthesizes NADPH. The NADPH is used to convert oxidized glutathione (GSSG) to reduced glutathione (