This database contains 244 studies, archived under the term: "Cohort Study"
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Effect of treatment gaps in elderly patients with dementia treated with cholinesterase inhibitors
Pariente, A.,
Fourrier-Reglat, A.,
Bazin, F.,
Ducruet, T.,
Dartigues, J. F.,
Dragomir, A.,
Perreault, S.,
Moore, N.,
Moride, Y.
Objective: To determine the effect of treatment gaps on the risk of institutionalization or death among community-dwelling elderly patients treated with cholinesterase inhibitors (ChIs).; Methods: A survival analysis was conducted among a cohort of community-dwelling elderly patients (age 66+) newly treated with ChIs identified in the Quebec drug claims databases (Régie de l’Assurance Maladie du […]
Isolated theory of mind deficits and risk for frontotemporal dementia: A longitudinal pilot study
Pardini, M.,
Emberti Gialloreti, L.,
Mascolo, M.,
Benassi, F.,
Abate, L.,
Guida, S.,
Viani, E.,
Dal Monte, O.,
Schintu, S.,
Krueger, F.,
Cocito, L.
Objective: Recent data suggest that theory of mind (ToM) deficits represent an early symptom of the behavioural variant of frontotemporal dementia (bvFTD). However, longitudinal data on the natural history of subjects presenting with isolated ToM deficits are lacking. The aim of the study was to verify if isolated ToM deficits represent an at-risk state for […]
Impact of molecular imaging on the diagnostic process in a memory clinic
Ossenkoppele, Rik,
Prins, Niels D.,
Pijnenburg, Yolande A.L.,
Lemstra, Afina W.,
van der Flier, Wiesje M.,
Adriaanse, Sofie F.,
Windhorst, Albert D.,
Handels, Ron L.H.,
Wolfs, Claire A.G.,
Aalten, Pauline,
Verhey, Frans R.J.,
Verbeek, Marcel M.,
van Buchem, Mark A.,
Hoekstra, Otto S.,
Lammertsma, Adriaan A.,
Scheltens, Philip,
van Berckel, Bart N.M.
Background: [(11)C]Pittsburgh compound B ([(11)C]PIB) and [(18)F]-2-fluoro-2-deoxy-D-glucose ([(18)F]FDG) PET measure fibrillar amyloid-β load and glucose metabolism, respectively. We evaluated the impact of these tracers on the diagnostic process in a memory clinic population.; Methods: One hundred fifty-four patients underwent paired dynamic [(11)C]PIB and static [(18)F]FDG PET scans shortly after completing a standard dementia screening. Two-year […]
Cognitive function, social integration and mortality in a U.S. national cohort study of older adults
Background: Prior research suggests an interaction between social networks and Alzheimer’s disease pathology and cognitive function, all predictors of survival in the elderly. We test the hypotheses that both social integration and cognitive function are independently associated with subsequent mortality and there is an interaction between social integration and cognitive function as related to mortality […]
18F-FDG PET and perfusion SPECT in the diagnosis of Alzheimer and Lewy body dementias
O'Brien, J. T.,
Firbank, M. J.,
Davison, C.,
Barnett, N.,
Bamford, C.,
Donaldson, C.,
Olsen, K.,
Herholz, K.,
Williams, D.,
Lloyd, J.
Unlabelled: Brain imaging with glucose ((18)F-FDG) PET or blood flow (hexamethylpropyleneamine oxime) SPECT is widely used for the differential diagnosis of dementia, though direct comparisons to clearly establish superiority of one method have not been undertaken.; Methods: Subjects with Alzheimer disease (AD; n = 38) and dementia with Lewy bodies (DLB; n = 30) and […]
Plasma free choline, betaine and cognitive performance: the Hordaland Health Study
Nurk, Eha,
Refsum, Helga,
Bjelland, Ingvar,
Drevon, Christian A.,
Tell, Grethe S.,
Ueland, Per M.,
Vollset, Stein E.,
Engedal, Knut,
Nygaard, Harald A.,
Smith, David A.
Choline and betaine are nutrients involved in one-carbon metabolism. Choline is essential for neurodevelopment and brain function. We studied the associations between cognitive function and plasma concentrations of free choline and betaine. In a cross-sectional study, 2195 subjects (55 % women), aged 70-74 years, underwent extensive cognitive testing including the Kendrick Object Learning Test (KOLT), […]
Cognitive testing in non-demented Turkish immigrants–comparison of the RUDAS and the MMSE
Methods for culturally and linguistically appropriate cognitive testing of elderly minority populations are lacking in Europe. The aim of this study was to compare performance on the Rowland Universal Dementia Assessment Scale (RUDAS) and the Mini Mental State Examination (MMSE) in Turkish immigrants in Denmark and determine the impact of demographic and health-related variables on […]
Validation of the Rowland Universal Dementia Assessment Scale for multicultural screening in Danish memory clinics
Nielsen, T. Rune,
Andersen, Birgitte Bo,
Gottrup, Hanne,
Lützhøft, Jan H.,
Høgh, Peter,
Waldemar, Gunhild
Background/aims: The Rowland Universal Dementia Assessment Scale (RUDAS) is a brief cognitive screening test that was developed to detect dementia in multicultural populations. The RUDAS has not previously been validated in multicultural populations outside of Australia. The aim of this study was to evaluate the diagnostic accuracy of the RUDAS in a multicultural sample of […]
Long-term metformin usage and cognitive function among older adults with diabetes
Ng, Tze Pin,
Feng, Liang,
Yap, Keng Bee,
Lee, Tih Shih,
Tan, Chay Hoon,
Winblad, Bengt
Evidence strongly supports the important role of insulin resistance in cognitive decline and dementia and suggests that insulin sensitizers may protect against cognitive decline in diabetic and pre-diabetic individuals. Inconclusive results have been reported in clinical trials of rosiglitazone, an insulin sensitizer that also increases cardiovascular mortality risks. No study has yet reported a protective […]