【摘 要】
：
Cognitive function in the elderly is affected by various environmental,social,and individual factors.Studies show that chemical trace elements are closely relat
【机 构】
：
Shandong Institute for Prevention and Treatment of Endemic Disease,Institute for Environmental Healt
【基金项目】
：
the National Institutes of Health,USA;Shandong Medical and Health Development Project Fund
论文部分内容阅读
Cognitive function in the elderly is affected by various environmental,social,and individual factors.Studies show that chemical trace elements are closely related to cognitive function.As a protective factor,selenium promotes cognition in the elderly.However,study results into the effects of selenium on cognition have varied.By eliminating unstable environmental and other related factors,the present study selected elderly individuals from rural areas of the Shandong province to verify whether low selenium exposure is a risk factor for decreased cognitive function.Results demonstrated that age,sex,education,occupation,hypertension,stroke,and body selenium levels were factors affecting cognitive function in the elderly,and that selenium was an important protective factor.Moreover,results supported the hypothesis that a lifelong low selenium level is associated with low cognitive function.
其他文献
本文给出了广义第二类Stirling数的一个定义,并由此得到一个有关第二类Stirling数的一个更一般公式.
In this paper,we discussed ω-extension of bicyclic semigroups.Two types of this extension are proposed.In §2 we discussed strong semilattice extension and the
目的 研究以巯基烷基化壳聚糖(TACS)介导的双核共表达质粒(pIRES-hVEGn2IcDN/hBMP-4)修复骨缺损的作用.方法 以新西兰兔15只(30侧)为实验动物,制作桡骨中段15 mm长的骨缺损实
In this paper, it is proved that the commutator Hβ,b which is generated by the n-dimensional fractional Hardy operator Hβ and b ∈(Λ)α(Rn) is hounded from L
作文教学是综合检查学生听、说、读、写能力的主要手段,是初中语文教学的难点。本文就如何激发学生写作兴趣,提高学生写作水平,谈几点个人看法。
Composition teaching is t
路基是公路的基础,公路路基施工质量是决定公路是否下沉的关键,通过结合某公路路基挖方与填筑施工工艺,提出了相应的施工技术要点,为同类工程提供参考。
Subgrade is the ba
危重病患者常常需要补液治疗,且危重病患者存在的应激状态,使机体糖代谢发生改变,存在胰岛素抵抗.传统的葡萄糖氯化钠注射液在危重病患者使用中存在着许多缺陷,如高血糖等.混
A magnesia adsorbent was prepared from straw pulp black liquor and magnesium sulfate for the first time, and its adsorption of phenol from aqueous solution was
学生来自不同地区又不同民族,此地区与彼地区,此民族与彼民族的方言语音各有不同,在学习普通话时产生的误读现象也不一样,针对对学生个体的发音情况,找出误读问题存在的原因,
本文结合刑事技术省级示范实验室建设的实际,着重介绍了在实验教学体系与内容、实验教学方法与手段、实验教学考试与考核、开放性实验等方面改革的主要措施和应用效果,以期为