PROBLEM TO BE SOLVED: To provide a preventing and treating agent useful for the prevention and treatment of cerebral infarction, myocardial infarction and other grave ischemic diseases caused by vascular occlusion, and disorders in organ transplantation.SOLUTION: The agent for the prevention and treatment of ischemic diseases and the organ preservation agent contain 1,5-anhydrofructose or its derivative.COPYRIGHT: (C)2008,JPO&INPIT【課題】血管閉塞が原因となって生じる脳梗塞、心筋梗塞、その他重篤な虚血性疾患、臓器移植障害の予防、治療に対して有用な予防、治療剤を提供すること。【解決手段】1,5-アンヒドロフルクトースまたはその誘導体を含有する虚血性疾患の予防もしくは治療剤または臓器保存剤。【選択図】なし