通过基于神经成像的方法探索阿尔茨海默病,衰老和认知得分之间的关系
Jinhui Sun1, Jing-Dong J Han2, Weiyang Chen3
1School of Cyber Science and Engineering, Qufu Normal University, Qufu, 273165, People's Republic of China.
Scientific reports
|November 10, 2024
概括
阿尔茨海默氏症 (AD) 加快衰老,影响大脑区域类似于自然衰老. 像MMSE和CDR这样的认知分数与衰老率相关,为AD进展提供了新的见解.
科学领域:
- 神经成像是一种神经成像.
- 神经退行性疾病 神经退行性疾病
- 老年学是一门学科.
背景情况:
- 阿尔茨海默病 (AD) 是一种进展性神经退行性疾病.
- 像迷你精神状态检查 (MMSE) 和临床痴呆评分 (CDR) 这样的认知评估对于监测AD进展至关重要.
- 阿尔茨海默病理,衰老和特定的大脑区域之间的相互作用尚未完全理解.
研究的目的:
- 为了调查认知评估得分 (MMSE,CDR) 是否在不同区域检测到与AD相关的大脑变化.
- 确定特定的大脑区域是否受到AD和衰老的影响,与两者相关.
- 开发和验证使用结构MRI检测AD的深度学习模型.
主要方法:
- 开发了一个3D卷积神经网络,使用混合注意力机制从sMRI进行AD分类.
- 利用3D卷积方法识别与AD,MMSE,CDR和年龄相关的大脑区域.
- 在ADNI数据 (417个样本) 上训练并验证的模型和在AIBL数据 (382个样本) 上外部验证的模型.
主要成果:
- 该模型证明了在评估AD进展时使用MMSE和CDR的强有力的支持.
- 分析显示了AD,MMSE,CDR和年龄之间的相关性,突出了AD和衰老中的不对称的大脑病变.
- 发现AD可以加速衰老,衰老率和认知得分之间存在显著的相关性.
结论:
- 认知评估有效监测AD的进展,并揭示与衰老共同的大脑区域的脆弱性.
- 阿尔茨海默病加速了衰老过程,老龄化率与认知能力下降之间的相关性证明了这一点.
- 这项研究为阿尔茨海默病与衰老之间的复杂关系提供了新的见解.
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