巴西黑人和白人老年人的神经病变病变和认知能力
Claudia K Suemoto1, Renata E P Leite1, Vitor R Paes2
1Division of Geriatrics, University of Sao Paulo Medical School, Sao Paulo, Sao Paulo, Brazil.
JAMA network open
|July 25, 2024
概括
在巴西成年人中,白人有更多的阿尔茨海默病病理,而黑人则有更高的血管痴呆率. 这些发现突出了痴呆症原因的种族差异,并强调了对多样化的研究群体的需求.
科学领域:
- 神经病理学神经病理学
- 老年学是指老年学的学科.
- 流行病学 流行病学
背景情况:
- 以前的痴呆症研究经常使用方便样本,限制了跨种族群体的概括性.
- 了解痴呆症患病率和发病率的种族差异对于有针对性的干预至关重要.
- 在黑人群体中观察到更高的痴呆症负担,需要进一步的临床病理学调查.
研究的目的:
- 为了比较黑人和白人巴西成年人之间神经病理病变的患病率.
- 检查不同种族群体与神经病理学有关的认知能力.
- 在以尸检为基础的研究中调查种族和特定痴呆病理之间的关联.
主要方法:
- 一项使用来自巴西圣保罗衰老研究生物银行的样本进行的截面解剖研究.
- 对13个大脑区域进行神经病理学检查,神经病理学家掩盖了认知结果.
- 在1815名老年人中使用临床痴呆症评分表评估认知和功能能力.
主要成果:
- 与白人参与者相比,黑人参与者中小血管疾病 (SVD) 和侧结核病的发生频率明显高.
- 阿尔茨海默病的特征神经性斑块在白人参与者中更为普遍.
- 阿尔茨海默病的神经病理诊断在白人中更频繁,而血管性痴呆在黑人中更常见.
结论:
- 这项研究揭示了与巴西老年人种族相关的独特神经病理概况,白人参与者表现出更多的阿尔茨海默病理,黑人参与者表现出更多的血管病理.
- 没有发现种族与认知能力有关,也没有发现种族改变神经病理与认知之间的关系.
- 在不同人群中进行进一步的神经病理学研究对于阐明导致痴呆负担种族差异的复杂因素至关重要.
相关概念视频
01:30Cognitive Development During Adulthood
76
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,...
76
01:27Language and Cognition
340
Language serves as a bridge between ideas and communication, influencing how individuals perceive and interact with the world. Psychologists have long debated whether language shapes thought or vice versa. This discussion gained grip with Edward Sapir and Benjamin Lee Whorf in the 1940s, who proposed that language determines thought, a concept known as linguistic determinism. They suggested that the vocabulary and structure of a language influence how its speakers think and perceive reality.
340
01:24Prosopagnosia
153
Prosopagnosia, also known as face blindness, is the inability to recognize faces. In severe cases, individuals with prosopagnosia may not recognize close family members, including parents and spouses, by their faces. For instance, someone with prosopagnosia might walk past their child in a crowd, only realizing their mistake upon noticing their child's distinctive backpack or favorite jacket. Prosopagnosia specifically impairs facial recognition, while the recognition of other objects or...
153
01:26Alzheimer's Disease: Overview
456
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...
456