在没有痴呆症的成年人中,神经精神病学概况和大脑粉样蛋白负担
Eva Q Gontrum1, Emily W Paolillo2, Shannon Lee2
1UCSF, Memory and Aging Center, San Francisco, California, USA, eva.gontrum@pomona.edu.
Dementia and geriatric cognitive disorders
|March 21, 2024
概括
老年人的神经精神症状 (NPS),无论是自我报告还是信息者报告,都与粉样蛋白-β (Aβ) PET水平相关. 患者报告的认知问题和告知者报告的焦虑/抑郁症显示出与Aβ负担的更强烈联系.
科学领域:
- 神经学 神经学
- 神经科学是一个神经科学.
- 老年学是一门学科.
背景情况:
- 神经精神症状 (NPS) 在老年人中很常见.
- 粉样β (Aβ) 沉积是阿尔茨海默病 (AD) 的早期标志物.
- 在非痴呆症患者中,NPS和Aβ负担之间的关系需要进一步澄清.
研究的目的:
- 在没有痴呆症的老年人中调查自我和告知者报告的NPS和大脑Aβ PET水平之间的差异关联.
- 探索哪些特定的NPS领域/子尺度与Aβ负担最为密切相关.
- 检查临床状态是否会改变NPS-Aβ关系.
主要方法:
- 221名老年人 (CDR 0或0.5) 接受了Aβ-PET扫描并完成了神经心理测试.
- 自我报告的NPS使用老年抑郁量表 (GDS-30) 进行评估.
- 报告者报告的NPS使用神经精神病学库存问卷 (NPI-Q) 进行评估.
- 脑Aβ负担用百叶状物 (CL) 量化;回归模型分析了NPS-Aβ关联.
主要成果:
- 更高的自我和告密者报告的NPS与更高的Aβ负担有关.
- 报告员报告的抑郁,焦虑和易怒,以及自我报告的抑郁,冷漠,焦虑和认知问题,都与Aβ-PET相关.
- 当一起分析时,自我报告的认知问题和告知者报告的焦虑/抑郁仍然是Aβ-PET的显著预测因素.
- 自我报告的NPS和Aβ负担之间的关联在临床严重程度较高的个体中更强.
结论:
- 自我和告密者报告的NPS,特别是认知问题,焦虑和抑郁,与非痴呆老年人的大脑Aβ负担有关.
- NPS可能表明早期的AD蛋白质病变在前阶段.
- 在临床严重程度较高的个体中,NPS和Aβ负担之间的联系被放大.
相关概念视频
Alzheimer's Disease: Overview
469
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...
469
Alzheimer's Disease: Treatment
184
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...
184
Dementia
113
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....
113


