This database contains 244 studies, archived under the term: "Cohort Study"
Click here to filter this large number of results.
Differences in verbal memory performance in postmenopausal women receiving hormone therapy: 17β-estradiol versus conjugated equine estrogens
Wroolie, Tonita E.,
Kenna, Heather A.,
Williams, Katherine E.,
Powers, Bevin N.,
Holcomb, Megan,
Khaylis, Anna,
Rasgon, Natalie L.
Objective: Much controversy exists and many questions remain unanswered about the effects of hormone therapy (HT) on cognition in postmenopausal women. There is growing evidence suggesting that HT compounds containing conjugated equine estrogen (CEE) have negative effects on cognition whereas 17β-estradiol (17β-E) either has positive or neutral effects. The present study sought to further examine […]
Preventing disruptive behavior of nursing home residents
Disruptive behavior is an increasing challenge for professional care in nursing homes. It frequently accompanies dementia, which is one of the most common chronic illnesses among the residents. Nursing homes are, therefore, subject to a high accumulation of problems due to behavior with risk potential. However, usual nursing interventions are often limited to restrictions in […]
Study of the effects of vinpocetin on cognitive functions
Introduction: Chronic cerebral hypoperfusion is a risk factor for the development of certain types of dementia. Mild cognitive impairment is a stage of predementia condition, because the symptoms are similar but not as severe as the symptoms in patients with dementia. Vinpocetine, due to its complex mechanism of action, has an important role in the […]
Cognitive intervention response is related to habitual physical activity in older adults
Thiel, Christian,
Vogt, Lutz,
Tesky, Valentina A.,
Meroth, Linda,
Jakob, Marion,
Sahlender, Sandra,
Pantel, Johannes,
Banzer, Winfried
Background and Aims: This study analysed the associations between physical activity and the effects of cognitive training on perceived cognitive functioning and life satisfaction in older adults.; Methods: A sample of 114 intervention group participants (65-89 yrs) received weekly group sessions of cognitive stimulation for two months. This sample was stratified into groups according to […]
DNA methylation and cognitive functioning in healthy older adults
Schiepers, Olga J. G.,
van Boxtel, Martin P. J.,
de Groot, Renate H. M.,
Jolles, Jelle,
Kok, Frans J.,
Verhoef, Petra,
Durga, Jane
Long-term supplementation with folic acid may improve cognitive performance in older individuals. The relationship between folate status and cognitive performance might be mediated by changes in methylation capacity, as methylation reactions are important for normal functioning of the brain. Although aberrant DNA methylation has been implicated in neurodevelopmental disorders, the relationship between DNA methylation status […]
Hormone levels and cognitive function in postmenopausal midlife women
Ryan, Joanne,
Stanczyk, Frank Z.,
Dennerstein, Lorraine,
Mack, Wendy J.,
Clark, Margaret S.,
Szoeke, Cassandra,
Kildea, Daniel,
Henderson, Victor W.
Gonadal hormones may influence cognitive function. Postmenopausal midlife women in the population-based Melbourne Women’s Midlife Health Project cohort were administered a comprehensive battery of neuropsychological tests on two occasions 2 years apart. Participants (n = 148, mean age 60 years) had undergone natural menopause and were not using hormone therapy. Estrone, total and free estradiol, […]
Amyloid-β(1-15/16) as a marker for γ-secretase inhibition in Alzheimer’s disease
Portelius, Erik,
Zetterberg, Henrik,
Dean, Robert A.,
Marcil, Alexandre,
Bourgeois, Philippe,
Nutu, Magdalena,
Andreasson, Ulf,
Siemers, Eric,
Mawuenyega, Kwasi G.,
Sigurdson, Wendy C.,
May, Patrick C.,
Paul, Steven M.,
Holtzman, David M.,
Blennow, Kaj,
Bateman, Randall J.
Amyloid-β (Aβ) producing enzymes are key targets for disease-modifying Alzheimer’s disease (AD) therapies since Aβ trafficking is at the core of AD pathogenesis. Development of such drugs might benefit from the identification of markers indicating in vivo drug effects in the central nervous system. We have previously shown that Aβ(1-15) is produced by concerted β-and […]
Persons with Alzheimer’s disease make phone calls independently using a computer-aided telephone system
Perilli, Viviana,
Lancioni, Giulio E.,
Singh, Nirbhay N.,
O’Reilly, Mark F.,
Sigafoos, Jeff,
Cassano, Germana,
Cordiano, Noemi,
Pinto, Katia,
Minervini, Mauro G.,
Oliva, Doretta
This study assessed whether four patients with a diagnosis of Alzheimer’s disease could make independent phone calls via a computer-aided telephone system. The study was carried out according to a non-concurrent multiple baseline design across participants. All participants started with baseline during which the telephone system was not available, and continued with intervention in which […]