自己報告と情報提供者報告の記憶障害と,軽度の認知障害から認知症への進行の不一致
Patrícia Regueira1,2, Inês Baldeiras1,2, Marisa Lima2,3
1Faculty of Medicine, University of Coimbra, Coimbra, Portugal.
Aging & mental health
|August 26, 2025
まとめ
軽度の認知障害の患者は,記憶喪失を報告していないが,意識が低下し,認知症に進行するリスクが著しく高い. この報告不足は アルツハイマー病のバイオマーカーに関連しています
科学分野:
- 神経科学
- ゲロントロジー
- 神経科学
背景:
- 軽度の認知障害 (MCI) は正常な老化と認知症の間の移行段階です.
- 記憶障害の認識を評価することは,MCIにおける疾患の進行を理解するために極めて重要です.
- 患者と情報提供者の間の不一致は 自己認識の低下を示します
研究 の 目的:
- 患者情報提供者による記憶欠陥の報告の不一致が,MCIにおける認知障害の代理として機能するかどうかを評価する.
- 認知症への転換を予測するこの不一致の予後値を決定する.
主な方法:
- 記憶障害のあるMCI患者128人を対象とした長期的研究
- ベースライン評価には,アルツハイマー病 (AD) バイオマーカー,主観記憶障害 (SMC),認知機能 (MMSE) が含まれていた.
- 認知症への転換を追跡するために,平均43. 3ヶ月間参加者を追跡した.
主要な成果:
- 記憶障害の報告数が少ない人は 認知能力が低下し,情報提供者が報告した SMC が高かった.
- アミロイド,タウ,p-タウの負荷が大きかった.
- 報告不足は認知症への転移の 4. 31 倍のリスクと関連していた.
結論:
- 患者による記憶障害の報告不足は,MCIにおける疾患進行を独立して予測した.
- 情報提供者の報告はADのバイオマーカーと相関しており,認知障害のマーカーとして報告不足を支持しています.
- 記憶障害の報告不足は,MCI患者の認知症転換の有意な予測因子です.
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