A Literature Review of Glutathione Therapy in Ameliorating Hepatic Dysfunction in Non Alcoholic Fatty Liver Disease Disrupting Mitochondrial Pyruvate Uptake Directs Glutamine into the TCA Cycle away from Glutathione Synthesis and Impairs Hepatocellular Tumorigenesis ScienceDirect Dysregulation of glutathione synthesis in liver disease ScienceDirect Regulation of hepatic glutathione synthesis: current concepts and controversies Lu 1999 The FASEB Journal Wiley Online Library