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This database contains 244 studies, archived under the term: "Cohort Study"

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Cerebrospinal fluid biomarker supported diagnosis of Creutzfeldt-Jakob disease and rapid dementias: a longitudinal multicentre study over 10 years
To date, cerebrospinal fluid analysis, particularly protein 14-3-3 testing, presents an important approach in the identification of Creutzfeldt-Jakob disease cases. However, one special point of criticism of 14-3-3 testing is the specificity in the differential diagnosis of rapid dementia. The constant observation of increased cerebrospinal fluid referrals in the national surveillance centres over the last […]

ERK2 is increased in cerebrospinal fluid of Creutzfeldt-Jakob disease patients
The clinical diagnosis of Creutzfeldt-Jakob disease (CJD) can be supported by several biochemical markers in cerebrospinal fluid (CSF) such as 14-3-3 proteins and tau protein. Unfortunately, none of the currently known markers are suited for screening or seems to be directly related to the pathophysiological process. A marker fulfilling these criteria might facilitate the early […]

Change in hippocampal volume on magnetic resonance imaging and cognitive decline among older depressed and nondepressed subjects in the neurocognitive outcomes of depression in the elderly study
Introduction: previous studies have linked hippocampal volume change and cognitive decline in older adults with dementia. The authors examined hippocampal volume change and cognitive change in older nondemented adults with and without major depression.; Methods: the sample consisted of 90 depressed individuals and 72 healthy, nondepressed individuals aged 60 years and older who completed at […]

Angiotensin-converting enzyme inhibitors and Alzheimer’s disease progression in older adults: results from the Réseau sur la Maladie d’Alzheimer Français cohort
Objectives: To assess whether angiotensin-converting enzyme inhibitor (ACE-I) treatment is associated with less cognitive decline in older adults with Alzheimer’s disease (AD) than in those using other hypertensive or no drugs.; Design: Four-year prospective multicenter cohort study with a biannual assessment.; Setting: Memory clinics from 16 university hospitals in France.; Participants: Community-dwelling older adults with […]

The most common type of FTLD-FUS (aFTLD-U) is associated with a distinct clinical form of frontotemporal dementia but is not related to mutations in the FUS gene
Frontotemporal lobar degeneration (FTLD) is clinically, pathologically and genetically heterogeneous. Recent descriptions of a pathological sub-type that is ubiquitin positive, TDP-43 negative and immunostains positive for the Fused in Sarcoma protein (FUS) raises the question whether it is associated with a distinct clinical phenotype identifiable on clinical grounds, and whether mutations in the Fused in […]

Effects of age, gender, education and race on two tests of language ability in community-based older adults
Background: Neuropsychological tests, including tests of language ability, are frequently used to differentiate normal from pathological cognitive aging. However, language can be particularly difficult to assess in a standardized manner in cross-cultural studies and in patients from different educational and cultural backgrounds. This study examined the effects of age, gender, education and race on performance […]

Physical activity reduces hippocampal atrophy in elders at genetic risk for Alzheimer’s disease
We examined the impact of physical activity (PA) on longitudinal change in hippocampal volume in cognitively intact older adults at varying genetic risk for the sporadic form of Alzheimer’s disease (AD). Hippocampal volume was measured from structural magnetic resonance imaging (MRI) scans administered at baseline and at an 18-month follow-up in 97 healthy, cognitively intact […]

25-Hydroxyvitamin D levels and cognitive performance and decline in elderly men
Objective: To test the hypothesis that lower 25-hydroxyvitamin D [25(OH)D] levels are associated with a greater likelihood of cognitive impairment and risk of cognitive decline.; Methods: We measured 25(OH)D and assessed cognitive function using the Modified Mini-Mental State Examination (3MS) and Trail Making Test Part B (Trails B) in a cohort of 1,604 men enrolled […]

Diagnostic performance of cerebrospinal fluid total tau and phosphorylated tau in Creutzfeldt-Jakob disease: results from the Swedish Mortality Registry
Importance: Identifying a clinical distinction between the invariably lethal prion disease Creutzfeldt-Jakob disease (CJD) and nonprion rapidly progressive dementias is important and sometimes difficult; thus, reliable tools for diagnosis are in great demand.; Objective: To test the diagnostic performance of dementia cerebrospinal fluid (CSF) biomarkers total tau (T-tau), phosphorylated tau (P-tau), and the T-tau to […]

Cognitive dysfunction in HIV patients despite long-standing suppression of viremia
Objective: To determine the prevalence of cognitive complaints and HIV-associated neurocognitive disorders (HANDs) in a cohort of aviremic HIV-positive patients. To evaluate the relevance of the HIV dementia scale to detect HANDs.; Design: Assessment of HANDs with neuropsychological tests.; Methods: Two hundred HIV-infected patients with undetectable HIV-1 RNA concentrations in the plasma, no history of […]

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