軽度の認知障害におけるうつ症状と認知機能の横断的および縦断的関連
Calum A Hamilton1, Paul C Donaghy1, John-Paul Taylor1
1Translational and Clinical Research Institute, Newcastle University, Newcastle upon Tyne, UK.
まとめ
鬱病の症状は軽度の認知障害 (MCI) の認知機能に急激に影響を及ぼします. これらの症状の対処は 真の認知能力を明らかにし 長期的な脳健康を支援します
科学分野:
- 神経科学
- ゲロントロジー
- 精神科
背景:
- 軽度の認知障害 (MCI) でうつ病の症状が一般的です.
- これらの症状は認知機能の低下と 認知症のリスクの増加と相関しています
- この研究は,原発性気分障害のない神経退行性MCIに焦点を当てています.
研究 の 目的:
- MCIにおけるうつ病症状の変動に関連した認知パターンを調査する.
- ステートベースの関連と特性の関連を区別する.
- 時間の経過とともに 認知の軌道を 探求するためです
主な方法:
- MCI (アルツハイマー病またはルイ体の認知症) を有する123人の個人を毎年評価した.
- 認知機能はアドンブルック認知検査 (Addenbrooke' s Cognitive Examination-Revised) を用いて測定した.
- 鬱病の症状は,ゲリアトリック鬱病スケール-15を用いて評価された.
主要な成果:
- 個人内でのうつ症状の変化と同時に起こる認知能力との間に,有意な否定的な関連性が見られた.
- うつ病のスコアが2ポイント上昇すると 認知スコアが1ポイント低下しました
- うつ病症状による特質に基づく関連性または軌道の変更を裏付ける証拠は見つかりませんでした.
結論:
- 抑うつ症状の重度の急性変化は,即時の認知能力の変動と相関する.
- 鬱病のエピソード中の認知評価は,個人の基礎認知能力を反映していない可能性があります.
- MCIのうつ症状の管理は,正確な認知評価を改善し,機能を維持することができます.
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