The NADPH Link between the Renin Angiotensin System and the Antioxidant Mechanisms in Dopaminergic Neurons Hexose Monophosphate Pathway or Pentose Phosphate Pathway Animations PharmaXChange.info Pentose Phosphate Pathway ChemTalk Explain how Inactivity or absence of Glucose 6 phosphate dehydrogenase ; a rate limiting enzyme in the Pentose phosphate pathway could lead to oxidative stress.* The pentose phosphate pathway in health and disease Nature Metabolism