Another trick of heavy isotopes.
Zhang
Hong-Yu
HY
D000375:Aging / Q000378:metabolism*; D000601:Amino Acids, Essential / Q000737:chemistry*; D002247:Carbon Isotopes / Q000378:metabolism*; D006801:Humans; D007700:Kinetics; D009747:Nutritional Physiological Phenomena; D018384:Oxidative Stress; D017382:Reactive Oxygen Species / Q000737:chemistry
D000601:Amino Acids, Essential; D002247:Carbon Isotopes; D017382:Reactive Oxygen Species