There are currently more than 38.9 million people aged 65 an older in the United States. Up
to 3.6 million of these people are considered housebound and in need of home‐based care …

A preponderance of evidence supports a role for vitamin D beyond the classical function in
mineral homeostasis. Epidemiologic investigations have revealed a beneficial role of …

Importance Increasing numbers of older, community-dwelling adults have functional
impairments that prevent them from leaving their homes. It is uncertain how many people …

Background: Vitamin D deficiency has potential adverse effects on neurocognitive health
and subcortical function. However, no studies have examined the association between …

As the population ages, risks for cognitive decline threaten independence and quality of life
for older adults and present challenges to the health care system. Nurses are in a unique …

Background The objective of this study was to examine the association between 25-
hydroxyvitamin D, 25 (OH) D, and cognitive function. Methods A cross-sectional …

Diseases of the central nervous system are found in patients with severe
hyperhomocysteinemia (HHcy). Epidemiological studies show a positive, dose-dependent …

Alzheimer's disease (AD) is the most common form of senile dementia, accounting for up to
70% of dementia cases. AD is a slowly progressive disease, which causes global mental …

Context A high ratio of plasma amyloid-β peptide 40 (Aβ 40) to Aβ 42, determined by both
high Aβ 40 and low Aβ 42 levels, increases the risk of Alzheimer disease. In a previous …

BACKGROUND: Albuminuria, a kidney marker of microvascular disease, may herald
microvascular disease elsewhere, including in the brain. STUDY DESIGN: Cross sectional …