社会脆弱及其与老年人认知轨迹的关联:一个前性队列研究
Hui Zhang1,2, Meng Hao3, Zixin Hu4
1School of Global Health, Chinese Center for Tropical Diseases Research, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China. zhanghui2939@163.com.
Alzheimer's research & therapy
|February 19, 2025
概括
社会脆弱性显著加快了老年人的认知衰退. 保持社会联系对于保持认知功能和防止更快的恶化至关重要.
科学领域:
- 老年学是一门学科.
- 认知神经科学 认知神经科学
- 公共卫生 公共卫生
背景情况:
- 社会脆弱性是社会行为,资源和需求的复杂相互作用,越来越多地被认为是老年人群认知健康的重要决定因素.
- 虽然特定的社会因素与认知功能有关,但社会脆弱对认知轨迹的长期影响仍然不完全理解.
- 这项研究通过在没有痴呆症的个体中调查社会脆弱性和认知功能轨迹之间的纵向关联来解决这个差距.
研究的目的:
- 在没有痴呆症的老年人中纵向评估社会脆弱性和认知功能轨迹之间的关联.
- 量化社会脆弱对全球和特定领域认知功能下降速度的影响.
- 为针对性干预提供证据,旨在缓解弱势老年人群的认知恶化.
主要方法:
- 利用了2011年至2018年国家健康和衰老趋势研究 (NHATS) 的前性队列数据.
- 使用马基扎科社会脆弱指数评估社会脆弱性,将参与者分为"社会脆弱" (≥2个组成部分),"社会脆弱前" (1个组成部分) 和"强壮" (0个组成部分).
- 采用混合效应线性模型来分析年度认知功能数据 (记忆,定向,执行功能) 并调整共变量.
主要成果:
- 该研究包括4956名没有痴呆症的老年人 (平均年龄为76.57岁),至少有两次认知评估.
- 与强壮个体相比,社会脆弱与全球认知功能 (β = -0.041/年) 和特定领域功能 (包括记忆 (β = -0.045/年),定向 (β = -0.027/年) 和执行功能 (β = -0.042/年) 的更快下降显著相关.
- 社交前脆弱性还显示出与全球认知 (β = -0.016/年),记忆 (β = -0.045/年) 和导向 (β = -0.027/年) 的加速下降有显著的关联.
结论:
- 社会脆弱是老年人加速认知衰退的重要预测因素.
- 研究结果突出了加强社会支持和参与战略的关键需求,以保护老年人群的认知健康.
- 针对社会脆弱性的干预措施可能在缓解认知恶化和改善弱势老年人的生活质量方面发挥着至关重要的作用.
相关概念视频
Cognitive Development During Adulthood
45
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,...
45
Alzheimer's Disease: Overview
429
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...
429
Aging
35
Aging is a complex biological phenomenon influenced by various processes that affect cellular and systemic functions. Several prominent theories attempt to explain its mechanisms, highlighting cellular limitations, oxidative damage, and hormonal changes as central factors in aging.
Cellular Clock Theory
The cellular clock theory posits that the human lifespan is closely tied to the finite capacity of cells to divide, a phenomenon governed by telomeres, which are protective caps at the ends of...
Cellular Clock Theory
The cellular clock theory posits that the human lifespan is closely tied to the finite capacity of cells to divide, a phenomenon governed by telomeres, which are protective caps at the ends of...
35
Longitudinal Research
11.8K
Sometimes we want to see how people change over time, as in studies of human development and lifespan. When we test the same group of individuals repeatedly over an extended period of time, we are conducting longitudinal research. Longitudinal research is a research design in which data-gathering is administered repeatedly over an extended period of time. For example, we may survey a group of individuals about their dietary habits at age 20, retest them a decade later at age 30, and then again...
11.8K
Negative and Cognitive Symptoms of Schizophrenia
40
Negative symptoms of schizophrenia indicate a reduction or absence of typical behaviors and emotional responses found in healthy individuals, while positive symptoms reflect an excess or distortion of normal functioning.
Negative Symptoms
Negative symptoms of schizophrenia manifest as deficits in normal emotional and behavioral functioning, profoundly impacting daily life. Individuals with schizophrenia often display a flat affect, characterized by a near-total absence of emotional expression,...
Negative Symptoms
Negative symptoms of schizophrenia manifest as deficits in normal emotional and behavioral functioning, profoundly impacting daily life. Individuals with schizophrenia often display a flat affect, characterized by a near-total absence of emotional expression,...
40
The Effect of Aging on Tissues
2.0K
Several body functions deteriorate with age. The external signs of aging are easily identifiable. For example, the skin becomes dry, less elastic, and thins out, forming wrinkles. The skin of the face begins to appear looser due to a decrease in the levels of elastic and collagen fibers in the connective tissue. Additionally, melanin production in the hair follicle decreases with age, resulting in gray hair. Moreover, the senses of sight and hearing decline, so glasses and hearing aids may...
2.0K


