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公衆衛生

Carmen M Colceriu1,2, Pablo Aguilar1,2,3, Alex López1,2

  • 1Global Health Institute Barcelona (ISGlobal), Barcelona, Spain.

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まとめ
この要約は機械生成です。

近隣の不利さは高齢者の認知機能低下と関連している。社会的格差は、認知症発症前、特にアミロイド病理の有無にかかわらず、認知に影響を与える可能性がある。

キーワード:
公衆衛生認知症社会的格差神経科学加齢

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科学分野:

  • 神経科学
  • 公衆衛生
  • 老年医学

背景:

  • 近隣の不利さは、認知機能低下と認知症の既知のリスクファクターである。
  • 剥奪指数（DI）は近隣の不利さを定量化する。
  • アミロイド病理は、認知障害と認知症に関与している。

研究 の 目的:

  • 近隣の不利さ（DI）と高齢者の認知機能との関連を評価する。
  • アミロイド病理がDIと認知機能の関係を媒介するかどうかを検討する。
  • 認知的に健常（CU）、軽度認知障害（MCI）、認知症の異なる認知状態にわたるこれらの関連を調査する。

主な方法:

  • UBRAIN研究から1712人の参加者が分析された。
  • 認知アウトカムには、エピソード記憶、作業記憶、言語流暢性が含まれた。
  • 線形回帰モデルを使用し、年齢、性別、教育、アミロイド状態（Aβ+またはAβ-）を調整した。

主要な成果:

  • DIが高いほど、全サンプルで言語流暢性と作業記憶の低下と関連していたが、これらの効果は教育によって媒介されていた。
  • CU個体では、DIが高いほどエピソード記憶の低下と関連していたが、これはアミロイド陰性（Aβ-）参加者によって引き起こされていた。
  • MCI患者では、DIが高いほど言語流暢性と作業記憶の低下と関連しており、これはアミロイド陽性（Aβ+）参加者によって引き起こされていた。

結論:

  • 社会的に不利な地域に住むことは、高齢者の認知機能低下のリスクを高める可能性がある。
  • 社会的格差は、認知症発症前に認知に影響を与える可能性が高い。
  • 社会的格差が認知に与える影響は、アミロイド病理の状態によって異なる可能性がある。