PROBLEM TO BE SOLVED: To provide an Alzheimers disease progression inhibitor comprising a specific heterocyclic compound.SOLUTION: The Alzheimers disease progression inhibitor, which is an antidepressant, brain-protective agent, amyloid-&beta deposition inhibitor or senility-inhibitory composition, comprises a heterocyclic compound of general formula (I), wherein the structural unit(s) of general formula (I) is one or more structural units selected from e.g. those represented by general formula (III).COPYRIGHT: (C)2009,JPO&INPIT【課題】特定の複素環化合物を含むアルツハイマー病進行抑制剤を提供する。【解決手段】一般式(I)を有する複素環化合物を含む抗鬱剤、脳保護剤、アミロイドβ沈着抑制剤または老化抑制組成物。一般式(I)中、例えば、一般式(III)を有する複数種の構造単位から選ばれる1種類以上の構造単位である。【選択図】なし
