PROBLEM TO BE SOLVED: To provide a preventive or therapeutic agent for a disease caused by oxidative stress and/or apoptosis.SOLUTION: The present invention provides glycyl-L-alanyl-L-histidine or a salt thereof and a medicine comprising the same.SELECTED DRAWING: NoneCOPYRIGHT: (C)2016,JPO&INPIT【課題】酸化ストレス及び/又はアポトーシスに起因する疾患の予防又は治療剤の提供。【解決手段】グリシル-L-アラニル-L-ヒスチジン又はその塩、及びこれを含有する医薬。【選択図】なし