世界杯下注网站-2022世界杯下注网站
随着痴呆症世界杯下注网站的加速, 世界杯下注网站提供了关于身体如何, 尤其是大脑, ages — and how people can age in the healthiest possible ways. Below is a roundup of 3 recent studies based on the Adult Changes in Thought (ACT) Study, 这是凯撒医疗机构和华盛顿的联合项目, 华盛顿大学(UW), and University of California-San Diego that focuses on finding ways to delay or prevent dementia, 包括阿尔茨海默病, 记忆力和思维能力下降.
的 《2022世界杯下注网站》 欧盟委员会2020年报告 suggests that hearing may be especially important to study in terms of dementia risk. 10月发表的一项世界杯下注网站. 13 in JAMA耳鼻喉科学 suggests that central auditory processing — or how the brain processes sound — could provide further insight.
In an observational study of 280 older adults without dementia, researchers found that people who performed at intermediate and poor levels on dichotic tests (both ears) were at substantially increased risk of developing dementia during an average of nearly 8 years of follow-up. Dichotic tests measure some aspects of central auditory processing.
Sound perception can be tested with standard audiology testing, where beeps at different frequencies are presented at different volumes to determine thresholds for sound perception. Once speech has been perceived, it needs to be transformed by the brain into language.
This study administered 2 types of hearing evaluations: the standard audiology threshold tests as well as dichotic tests.
在一个二分测验中, noise is presented to one ear and a number is presented to the other ear; the participant is asked to say the name of the number. Dichotic tests assess the brain’s ability to manage competing auditory signals and to isolate speech against a background of noise.
资深作者保罗·克兰, MD, 英里每小时, 西澳大学医学教授, said this study suggests that further research on the relationship between hearing and dementia risk should consider adding dichotic tests as part of the measurement.
An important underlying scientific question is what aspect of hearing loss is associated with dementia, 共同资深作者埃里克·拉尔森说, MD, 英里每小时, a senior investigator at 2022世界杯下注网站健康世界杯下注网站所.
拉尔森说，乔治·盖茨, MD, 华盛顿大学医学院耳鼻喉科名誉教授, was a pioneer in the early research linking dementia to a decline in central auditory processing in midlife.
“这篇论文证明了他的工作，”他说.
资助方:美国国家老龄世界杯下注网站所
随着美国的数量.S. 65岁以上的退伍军人有所增加, researchers want to know whether 服兵役 is associated with an increased risk of cognitive decline.
发表在 军事医学 10月. 9, researchers studied 4,370 participants and found no such link. 世界杯下注网站人员 classified persons as having military employment if their first- or second-longest occupation was with the military. Of the participants, 6% had military employment; of these, 76% were males.
“While our study suggests no overall increase in risk for those with military employment, we still need to better understand how specific experiences that are unique to our veterans may impact risk of cognitive decline and dementia,主要作者梅林达·鲍尔说, 镜头分割, associate professor of epidemiology at the George Washington University Milken Institute School of Public Health.
She said veterans can benefit from the same advice given to the general population — stay active, 吃得好, 积极管理你的慢性疾病.
“心脏健康尤其重要, as what’s good for your heart appears to be good for your brain,鲍尔说.
Co-authors on the study include Eric 拉森 and Paul Crane.
Funder: Department of Defense Peer Reviewed Alzheimer’s 世界杯下注网站 Program
How often do people with dementia or mild cognitive impairment get a timely diagnosis — and are there factors, 比如种族和教育水平, 这可能会影响诊断的时机?
在一项发表于 普通内科杂志 10月. 13, 世界杯下注网站人员观察了4个,760名痴呆症患者和1名老年痴呆症患者,864名有轻度认知障碍的参与者. 的y evaluated the timing of each participant’s diagnosis in relation to when they first had cognitive scores indicating these conditions. 的 study team found that only 26% of people with dementia and just 11.4% of people with mild cognitive impairment received a timely diagnosis.
Non-Hispanic Black participants and participants with less than a college degree were significantly less likely to receive a timely diagnosis than non-Hispanic white participants with a college degree. Participants who lived alone were also less likely to receive a timely diagnosis of dementia, 虽然不是轻度认知障碍.
世界杯下注网站人员 concluded that targeting resources for timely diagnosis of cognitive impairment to individuals from certain racial and ethnic groups or with lower educational levels, 那些独自生活的人, may improve detection and reduce 差距 in obtaining timely diagnosis of dementia and mild cognitive impairment.
Lindsey White, PhD, with RTI International in Seattle led the study. 合著者包括Eric 拉森.
资助方:美国国家老龄化世界杯下注网站所
这是改编自 新闻 故事 这是华盛顿大学新闻频道的一项世界杯下注网站.
凯撒永久医疗机构华盛顿 will co-lead an expanded ACT Program to better understand the aging brain.
One-third of people classified as ‘highest risk’ may not develop Alzheimer’s disease, study suggests
数据来自ACT世界杯下注网站, researchers associated increased levels of fine particle pollution with a greater risk of dementia.
