This database contains 429 studies, archived under the term: "USA"
Click here to filter this large number of results.
Randomized, placebo-controlled, clinical trial of donepezil in vascular dementia: differential effects by hippocampal size
Román, Gustavo C.,
Salloway, Stephen,
Black, Sandra E.,
Royall, Donald R.,
DeCarli, Charles,
Weiner, Michael W.,
Moline, Margaret,
Kumar, Dinesh,
Schindler, Rachel,
Posner, Holly
Background and Purpose: We sought to assess the efficacy and safety of donepezil in patients with vascular dementia (VaD) fulfilling National Institute of Neurological Disorders and Stroke-Association Internationale pour la Recherche et l’Enseignement en Neurosciences criteria.; Methods: This international, multicenter, 24-week trial was conducted from March 2003 to August 2005. Patients (N=974; mean age, 73.0 […]
Docosahexaenoic acid supplementation and cognitive decline in Alzheimer disease: a randomized trial
Quinn, Joseph F.,
Raman, Rema,
Thomas, Ronald G.,
Yurko-Mauro, Karin,
Nelson, Edward B.,
van Dyck, Christopher,
Galvin, James E.,
Emond, Jennifer,
Jack, Clifford R., Jr.,
Weiner, Michael,
Shinto, Lynne,
Aisen, Paul S
Context: Docosahexaenoic acid (DHA) is the most abundant long-chain polyunsaturated fatty acid in the brain. Epidemiological studies suggest that consumption of DHA is associated with a reduced incidence of Alzheimer disease. Animal studies demonstrate that oral intake of DHA reduces Alzheimer-like brain pathology.; Objective: To determine if supplementation with DHA slows cognitive and functional decline […]
Comparative cardiovascular safety of dementia medications: a cross-national study
Fosbøl, Emil L.,
Peterson, Eric D.,
Holm, Ellen,
Gislason, Gunnar H.,
Zhang, Yinghong,
Curtis, Lesley H.,
Køber, Lars,
Iwata, Isao,
Torp-Pedersen, Christian,
Setoguchi, Soko
Objectives: To compare the cardiovascular safety of currently marketed dementia medications in new users in the United States and Denmark.; Design: Retrospective cohort study.; Setting: Nationally representative sample of Medicare beneficiaries from 2006 through 2009 and nationwide Danish administrative registries from 1997 through 2007.; Participants: Individuals treated with a dementia medication aged 65 and older.; […]
Activity loss is associated with cognitive decline in age-related macular degeneration
Background/methods: The objective of this study was to determine whether relinquishing cognitive, physical, and social activities is associated with an increased risk of cognitive decline in patients with age-related macular degeneration (AMD). We conducted a 3-year longitudinal study of 206 nondemented patients with AMD.; Results: Twenty-three subjects (14.4%) declined cognitively. Age, sex, education, decline in […]
Postmenopausal hormone therapy and subclinical cerebrovascular disease: the WHIMS-MRI Study
Coker, L. H.,
Hogan, P. E.,
Bryan, N. R.,
Kuller, L. H.,
Margolis, K. L.,
Bettermann, K.,
Wallace, R. B.,
Lao, Z.,
Freeman, R.,
Stefanick, M. L.,
Shumaker, S. A.
Objective: The Women’s Health Initiative Memory Study (WHIMS) hormone therapy (HT) trials reported that conjugated equine estrogen (CEE) with or without medroxyprogesterone acetate (MPA) increases risk for all-cause dementia and global cognitive decline. WHIMS MRI measured subclinical cerebrovascular disease as a possible mechanism to explain cognitive decline reported in WHIMS.; Methods: We contacted 2,345 women […]
Relative effects of tamoxifen, raloxifene, and conjugated equine estrogens on cognition
Espeland, Mark A.,
Shumaker, Sally A.,
Limacher, Marian,
Rapp, Stephen R.,
Bevers, Therese B.,
Barad, David H.,
Coker, Laura H.,
Gaussoin, Sarah A.,
Stefanick, Marcia L.,
Lane, Dorothy S.,
Maki, Pauline M.,
Resnick, Susan M.
Objective: To compare the relative effects of conjugated equine estrogens (CEE), raloxifene, and tamoxifen therapies on cognition among women aged > or =65 years.; Methods: Annual Modified Mini-Mental State (3MS) examinations were used to assess global cognitive function in the two randomized placebo-controlled clinical trials of CEE therapies of the Women’s Health Initiative Memory Study […]
Aerobic exercise improves cognition for older adults with glucose intolerance, a risk factor for Alzheimer’s disease
Baker, Laura D.,
Frank, Laura L.,
Foster-Schubert, Karen,
Green, Pattie S.,
Wilkinson, Charles W.,
McTiernan, Anne,
Cholerton, Brenna A.,
Plymate, Stephen R.,
Fishel, Mark A.,
Watson, G. Stennis,
Duncan, Glen E.,
Mehta, Pankaj D.,
Craft, Suzanne
Impaired glucose regulation is a defining characteristic of type 2 diabetes mellitus (T2DM) pathology and has been linked to increased risk of cognitive impairment and dementia. Although the benefits of aerobic exercise for physical health are well-documented, exercise effects on cognition have not been examined for older adults with poor glucose regulation associated with prediabetes […]
Effects of aerobic exercise on mild cognitive impairment: a controlled trial
Baker, Laura D.,
Frank, Laura L.,
Foster-Schubert, Karen,
Green, Pattie S.,
Wilkinson, Charles W.,
McTiernan, Anne,
Plymate, Stephen R.,
Fishel, Mark A.,
Watson, G. Stennis,
Cholerton, Brenna A.,
Duncan, Glen E.,
Mehta, Pankaj D.,
Craft, Suzanne
Objectives: To examine the effects of aerobic exercise on cognition and other biomarkers associated with Alzheimer disease pathology for older adults with mild cognitive impairment, and assess the role of sex as a predictor of response.; Design: Six-month, randomized, controlled, clinical trial.; Setting: Veterans Affairs Puget Sound Health Care System clinical research unit.; Participants: Thirty-three […]