Pentose Phosphate Pathway (Part 4 of 5) NADPH and Glutathione as Anti Oxidants Pentose Phosphate Cycle an overview ScienceDirect Topics Quantitative Importance of the Pentose Phosphate Pathway Determined by Incorporation of 13C from [2 13C] and [3 13C]Glucose into TCA Cycle Intermediates and Neurotransmitter Amino Acids in Functionally Intact Neurons Eva M F HMP also known as the Pentose phosphate pathway. Consists of two irreversible oxidative rxs followed by a series of reversible