Association between selenium intake and cognitive function among older adults in the US: National Health and Nutrition Examination Surveys 2011-2014.

IF 2.4 Q3 NUTRITION & DIETETICS Journal of Nutritional Science Pub Date : 2023-05-10 eCollection Date: 2023-01-01 DOI:10.1017/jns.2023.43
Khondoker Adeba Ferdous, Linda L Knol, Han-A Park
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Abstract

Cognitive decline occurs commonly as people age. Despite the complexity of cellular mechanisms, oxidative stress is a critical contributor to age-associated cognitive impairment. Selenium plays an important role in antioxidant defense systems. The purpose of the present study was to assess the correlation between selenium intake and cognitive function among older adults. The participants were individuals ≥65 years old (n=1681) who participated in the 2011-2014 National Health and Nutrition Examination Survey (NHANES), a country-wide cross-sectional survey. Dietary selenium intake and adequacy were evaluated with 2 d of 24-h recalls and the estimated average requirement (EAR) cut-point method, respectively. Cognitive function was assessed with the Consortium to Establish a Registry for Alzheimer's Disease (CERAD) score, which was significantly higher when selenium intake was adequate. After adjusting for energy intake, the association was no longer significant. Inadequate intake of selenium is rare in the US and dependent on caloric intake in older adults.

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美国老年人硒摄入量与认知功能之间的关系:2011-2014年全国健康和营养检查调查。
认知能力下降通常随着年龄的增长而发生。尽管细胞机制复杂,但氧化应激是导致年龄相关认知障碍的关键因素。硒在抗氧化防御系统中起着重要作用。本研究的目的是评估老年人硒摄入量与认知功能之间的相关性。参与者年龄≥65岁(n=1681),参加了2011-2014年全国健康和营养检查调查(NHANES),这是一项全国性的横断面调查。分别采用2天24小时召回和估计平均需求量(EAR)分界点法评估膳食硒摄入量和充足性。认知功能通过建立阿尔茨海默病登记联合会(CERAD)评分进行评估,当硒摄入充足时,该评分明显更高。在调整能量摄入后,这种关联不再显著。硒摄入不足在美国很少见,而且依赖于老年人的热量摄入。
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来源期刊
Journal of Nutritional Science
Journal of Nutritional Science NUTRITION & DIETETICS-
CiteScore
3.00
自引率
0.00%
发文量
91
审稿时长
7 weeks
期刊介绍: Journal of Nutritional Science is an international, peer-reviewed, online only, open access journal that welcomes high-quality research articles in all aspects of nutrition. The underlying aim of all work should be, as far as possible, to develop nutritional concepts. JNS encompasses the full spectrum of nutritional science including public health nutrition, epidemiology, dietary surveys, nutritional requirements, metabolic studies, body composition, energetics, appetite, obesity, ageing, endocrinology, immunology, neuroscience, microbiology, genetics, molecular and cellular biology and nutrigenomics. JNS welcomes Primary Research Papers, Brief Reports, Review Articles, Systematic Reviews, Workshop Reports, Letters to the Editor and Obituaries.
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