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臨床的特徴

Fleur H C van der Linden1, Kaitlin B Casaletto2, Argentina Lario Lago1

  • 1Memory and Aging Center, Weill Institute for Neurosciences, University of California San Francisco, San Francisco, CA, USA.

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まとめ
この要約は機械生成です。

行動型アルツハイマー病（bvAD）患者は、健常対照群と同様の発症前の性格を示すが、典型的なAD（tAD）とは異なる。発症後、bvAD患者は行動型前頭側頭型認知症（bvFTD）と同様に、硬直した性格を発症する。

キーワード:
行動型アルツハイマー病性格変化前頭側頭型認知症アルツハイマー病性格神経変性疾患

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科学分野:

  • 神経科学
  • 精神医学
  • 老年医学

背景:

  • 行動型アルツハイマー病（bvAD）は、行動型前頭側頭型認知症（bvFTD）と同様の症状を示すが、典型的なアルツハイマー病（tAD）との解剖学的な関連がある。
  • 発症前の性格特性は、bvADの素因となり、神経変性中の早期の行動障害につながる可能性がある。
  • 性格特性は、発症前および現在の両方において、bvAD患者では十分に定義されていない。

主な方法:

  • 19人のbvAD患者、25人のtAD患者、28人のbvFTD患者、および37人の健常対照群（HC）を含む後ろ向き症例対照研究。
  • 性格は、発症前の性格特性と現在の性格特性を測定するために、情報提供者ベースの対人形容詞尺度（IAS）を使用して評価された。
  • 統計分析には、ANOVA、Kruskal-Wallis、ペアt検定、およびWilcoxon順位検定が含まれ、群間および経時的な性格次元とベクトル長を比較した。

結論:

  • bvAD患者は、tAD患者とは異なり、HCおよびbvFTD患者と共通の発症前の性格プロファイルを示し、tAD患者はより高い温和性によって特徴づけられる。
  • 病状発症後、bvAD患者はbvFTDで観察されるものと同様の硬直した性格を発症する。
  • これらの発見は、神経変性によって誘発される行動表現型を形成する上での発症前の性格の役割を強調し、有意な性格の変化はbvFTDに特有のものではないことを示している。