Oral administration of glutamylcysteine increases intracellular glutathione levels above homeostasis in a randomised human trial pilot study ScienceDirect Glutathione system enhancement for cardiac protection: pharmacological options against oxidative stress and ferroptosis Cell Death & Disease Full article: Mechanisms of cellular adaptation to quantum dots the role of glutathione and transcription factor EB A locally activatable sensor for robust quantification of organellar glutathione Nature Chemistry