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Life sciences/Biochemistry/Biomolecules/Amino acids/Essential amino acids/Tryptophan

A new study confirms that the human sirtuin protein known as SIRT1, which has been shown to combat age-related diseases in many animals, can be directly activated by resveratrol—a natural compound found in the skin of grapes used to make red wine. Resveratrol is one of many so-called sirtuin-activating compounds, or STACs.