アルツハイマー病のリスクとの認知内部の変動の関連:体系的なレビュー
Fini Chang1,2, Fareshte Erani1, Daniel Landaverde3
1Department of Psychiatry, University of California San Diego, La Jolla, CA, USA.
The Clinical neuropsychologist
|August 23, 2025
まとめ
認知の個体内変動 (IIV) またはパフォーマンスの不一致と分散は,アルツハイマー病 (AD) のリスクと認知の低下に関連しています. IIVが高くなったと,ADの認知症のリスクと重度の上昇を示します.
科学分野:
- 神経科学
- 認知心理学
- ゲロントロジー
背景:
- コグニティブ・イントラ・インディвидуアル・ヴァイアビリティ (IIV) は,認知のタスクにおける個人のパフォーマンスの変動を記述する.
- 認知老化において研究されているが,アルツハイマー病 (AD) のIIVの役割は新興の研究分野である.
- IIVは不一致性 (スコアの変動性) と分散性 (スコアの分散性) を含む.
研究 の 目的:
- アルツハイマー病 (AD) リスクにおけるIIVの研究を統合する.
- 認知段階の差異化におけるIIVの有用性を評価する.
- IIVとADのバイオマーカーの関連性を調べる
主な方法:
- PubMed,PsycINFO,Web of Scienceで体系的な文献レビューが行われている.
- 試験の選択に関する PRISMA ガイドラインの遵守
- ADリスク,認知障害,バイオマーカーに関するIIVを調査した44件の研究を含めた.
主要な成果:
- 特に軽度の認知障害 (MCI) とAD認知症において,不一致性に基づくIIVの増加は認知障害の重度の増加と相関する.
- 分散ベースのIIV研究は,異なった結果を示しましたが,一般的に,より高いIIVはMCIとインシデント認知症の予測に関連しています.
- 2つのIIV指標は,アミロイドーシスなどのADバイオマーカーとの関連を示した.
結論:
- 認知不一致と分散の測定は,認知機能低下とADバイオマーカーと関連しており,平均認知機能とは無関係です.
- IIVは認知症のリスクのある個人を特定する可能性を示しています.
- IIVの評価方法の標準化は,研究間のより明確な比較のために必要である.
さらに関連する動画
04:41Mapping Alzheimer's Disease Variants to Their Target Genes Using Computational Analysis of Chromatin Configuration
Published on: January 9, 2020
19.0K
06:46Automated, Long-term Behavioral Assay for Cognitive Functions in Multiple Genetic Models of Alzheimer's Disease, Using IntelliCage
Published on: August 4, 2018
12.3K
関連する概念動画
01:26Alzheimer's Disease: Overview
666
Alzheimer's Disease (AD) is a continually advancing neurodegenerative disorder, distinguished by escalating memory loss, cognitive dysfunction, and dementia. The disease unfolds in three stages: preclinical, mild cognitive impairment (MCI), and dementia. Its onset is insidious, and the progression gradual, with the cause not well explained by other disorders.
The clinical diagnosis of AD hinges on the presence of memory and other cognitive impairments. Biomarkers, such as changes in Aβ...
The clinical diagnosis of AD hinges on the presence of memory and other cognitive impairments. Biomarkers, such as changes in Aβ...
666
01:22Alzheimer's Disease: Treatment
260
Alzheimer's Disease (AD), a neurodegenerative disorder, is pathologically identified by amyloid plaques and neurofibrillary tangles composed of tau protein. AD pharmacotherapy aims to manage cognitive symptoms, delay disease progression, and treat behavioral symptoms. The treatment is primarily symptomatic and palliative, with no definitive disease-modifying therapy available. Cholinesterase inhibitors, including donepezil (Aricept), rivastigmine (Exelon), and galantamine (Razadyne), are...
260
01:30Cognitive Development During Adulthood
267
Cognitive development continues throughout adulthood, undergoing significant shifts across early, middle, and late stages. Individual transition occurs from adolescent idealism to pragmatic and adaptable thinking in early adulthood. During this period, individuals learn to integrate personal beliefs with the recognition that other perspectives are equally valid. Exposure to the complexities of modern society, diverse experiences, and higher education contribute to this adaptive thought process,...
267
01:30Biological Influences on Intelligence
213
Intelligence is often thought to be linked to brain size, but the relationship is more complex than that. While brain size does correlate modestly with some abilities, like verbal skills, the connection is weaker for others, such as spatial reasoning. Other factors, like brain structure, also play crucial roles. For instance, despite Einstein's smaller-than-average brain, his parietal cortex, which is involved in spatial reasoning, was 15% wider, suggesting that neural density might matter...
213
01:30Dementia
165
Dementia is a collective term for cognitive disorders primarily affecting memory, thinking, and reasoning. It is not a specific disease but a syndrome, with Alzheimer's disease being the most common cause, accounting for approximately 60-80% of cases. Other types include vascular dementia, Lewy body dementia, and frontotemporal dementia. Dementia affects millions worldwide, particularly older adults, though it is not a normal part of aging.
The progression of dementia is generally gradual....
The progression of dementia is generally gradual....
165