Glutathione system enhancement for cardiac protection: pharmacological options against oxidative stress and ferroptosis Cell Death & Disease ThiolDisulfide Exchange between Glutaredoxin and Glutathione Biochemistry Cysteine Disulfides (Cys ss X) as Sensitive Plasma Biomarkers of Oxidative Stress Scientific Reports Critical Roles of the CysteineGlutathione Axis in the Production of Glutamyl Peptides in the Nervous System Protein Glutathionylation and Glutaredoxin: Role in Neurodegenerative Diseases