View clinical trials related to Alzheimer Disease.
Filter by:The goal of this observational study is to assess the role of narcisistic personality disorder and life stressful events in conversion rate to dementia, using a three tier approach along three research lines employing subjects with dementia in retrospective assessment, and normal subjects no yet developing demetia in prospective follow up. The main question[s] it aims to answer are: - narcisistic personality disorder as risk factor for conversion to dementia - life stressful events as risk factor for conversion to dementia Participants will be assessed with a complete neurocognitive battery, brain images studies, laboratory analysis, and sociodemographic profile, including depression and comorbidities.
INTRODUCTION: Mild cognitive impairment (MCI) is a critical transitional stage in dementia related disorders. Dorsolateral prefrontal cortex (DLPFC), and the lateral parietal (LPC) cortex are subjected to neuropathological changes in MCI. Parietal memory network (PMN) integrity alterations and default mode network (DMN) alterations also occur in MCI. Transcranial direct current stimulation (tDCS) is a promising neuroprotective tool that modulates functional connectivity and might be useful to interfere with cognitive decline in relation to amnestic MCI (aMCI) and Parkinson's disease-MCI (PD-MCI) when applied to DLPFC and LPC. METHODS: This is a multicenter, randomized, and controlled study evaluating the effectiveness of anodal tDCS (atDCS ) applied bilaterally to the DLPFC/F3-F4 and LPC/ P3-P4 for 5 sessions with a total of 10 sessions in 14 days. The stimulation will be delivered with a 2 mA current frequency and will last 20 minutes a day for 5 days a week. The study consists of anodal, and sham control groups with a total of 120 participants with DLPFC and LPC anodal groups including 40 participants each and sham including 40 participants which are all between 45-80 years of age. At baseline and as an outcome measure, neurocognitive evaluation will be conducted using various tests standardized to use in the Turkish population. Functional magnetic resonance (fMRI) will be used to detect possible PMN and DMN alterations and hippocampal connectivity, and electroencephalogram (EEG) will be used to assess possible electrophysiological alterations that may happen as a result of atDCS. Baseline evaluation will be done before atDCS sessions and it will be repeated at the end of 14 days and 90 days. DISCUSSION: This study aims to explore the effectiveness of atDCS in PD-MCI, aMCI and to contribute to the literature in the field.
The causes of neurodegenerative dementias such as Frontotemporal Dementia, Lewy Body Disease and Alzheimer's disease are still largely unknown. While the contribution of some genetic mutations and polymorphisms is associated with autosomal dominant patterns of inheritance of these dementias, in many cases, the specific causative mutation in these families is not yet identified. Further, in many patients, polygenic risk is thought to give rise to pathophysiologic changes, but which specific genes affect risk are largely yet unknown. By examining genotypes in patients that present to our Cognitive Neurology and Alzheimer's Research Clinic with suspected or confirmed neurodegenerative dementia, or have a history of a familial dementia, we aim to help identify and characterize genetic mutations or polymorphisms that give rise to neurodegenerative diseases.
This study aims to analyse, in vivo, the interplay between microglial activation and tau pathology in Alzheimer's disease (AD) using [18F]-DPA-714 and [18F]-Ro948 tracers by Position Emission Tomography (PET), and their consequences on synaptic density using [11C]-UCB-J, a recent PET radioligand. By coupling advanced neuroimaging techniques in AD patients, while comparing them to controls, we will be able to study, for the first time in humans, the interaction between neuroinflammation, tau pathology, synaptic density, and their impact on AD progression. Joint analyses of peripheral immune biomarkers, carried out as a secondary objective, will further aim at defining peripheral correlates of this interplay. Overall, we aim to refine AD subgroup classification in order to improve and to refine the design of new therapeutic trials.
The primary purpose of this study is to confirm the clinical efficacy and mechanism of action of GV-971, and identify incidence of known adverse reactions in long-term use and observe new adverse reactions, providing more guidance for clinical use.
The eRADAR Brain Health Study seeks to refine and test a novel, low-cost strategy for increasing dementia detection within primary care.
UDDGait™ is a multidisciplinary research project with the overreaching goal of providing an aid for early identification of cognitive impairment and risk of dementia development, thereby providing a basis for adequate symptom relieving and health promoting interventions. A new concept is investigated for this purpose: a "dual-task-test", which implies the combination of a well-established mobility test (Timed Up-and-Go, TUG) with a simultaneous verbal task (i.e. TUG dual-task, TUGdt). This type of test has been judged as a potential aid for early identification of dementia disease. More research is needed to further examine the test's validity, reliability and predictive capacity. The overall aim is to investigate if TUGdt is useful as an aid for prediction of dementia disease. To ensure the results, the aim is also to evaluate the test's measurement properties and to generate normative reference values of healthy control persons.
Understanding more about how diseases that cause dementia develop is critical as the number of people living with, or affected by, dementia in Scotland continues to grow. The IONA Longitudinal Cohort Study (LCS) has been set up to gather information about people's cognitive health (their memory and thinking abilities), their lifestyle and health risk factors for future dementia (such as hearing loss and obesity), genetics and disease biomarkers, over a number of years. The IONA LCS has three main objectives: Firstly to develop this cohort that is well characterised (also known as being "well-phenotyped") that represent the Scottish population (taking into consideration age, sex, ethnicity and education). The second objective is to use this data to build disease models to better understand trajectories of diseases, and identify any sub-populations who have different (i.e. better, worse) disease trajectories. Finally the third objective for IONA LCS is to offer people an optional consent to hear about future studies they may be interested in taking part in.
To investigate the treatment effect of Transcranial random noise (tRNS) on Alzheimer patients, and the underlying neural mechanism by EEG.
This study is a multicentre, randomized, double-blind, controlled trial that aims to investigate the efficacy of multi-domain life-style intervention including low inflammatory-index diet, exercise, and cognitive training in patients with mild cognitive impairment and mild Alzheimer's disease.