View clinical trials related to Dementia With Lewy Bodies.
Filter by:The goal of this observational study is to investigate the prevalence of Neurological Soft Signs (NSS) in various categories of dementia patients compared to matched controls. The main questions it aims to answer are: - Does the prevalence of NSS significantly differ among patients with neurodegenerative dementias compared to controls? - Are NSS associated with neuropsychiatric alterations in dementia patients? - Do NSS correlate with cognitive screening tools? - Do NSS increase over time in patients with neurodegenerative dementias? Participants will undergo assessments including: - Evaluation of NSS using the Heidelberg scale - Neuropsychiatric assessments - Cognitive screening using the Mini-Mental State Examination (MMSE) and Frontal Assessment Battery (FAB) Researchers will compare dementia groups (Alzheimer's disease, Frontotemporal dementia, Corticobasal syndrome and Lewy body dementia) to controls to determine differences in NSS prevalence. Additionally, associations between NSS and neuropsychiatric symptoms, as well as cognitive performance, will be explored.
The goal of this retrospective observational study is to describe the efficacy of focused ultrasound ventral-intermediate nucleus thalamotomy in patients with atypical parkinsonism. - Is this treatment efficacious in patients with multiple system atrophy? - Is this treatment efficacious in patients with diffuse Lewy Body Dementia? Data will be collected from patients charts.
Assistive Technologies (ATs) can help people living with dementia (PwD) maintain their everyday activity. Still, there is a gap between potential and supply. Involving future users can close the gap. But the value of participation from PwD is unclear. The study examined smartwatch interactions from people with dementia or with mild cognitive impairment. Participants received "regularly" (n=20) or "intensively" (n=20) intrusive audio-visual prompts on a customized smartwatch to perform everyday tasks. Participants' reactions were observed via cameras. Users' feedback was captured with questionnaires.
Brain oscillations are ubiquitous in the human brain and have been implicated in cognitive and behavioral states defined in precisely tuned neural networks. In neurodegenerative disorders, neurodegeneration is accompanied by changes in oscillatory activity leading to the emerging concept of neurological and psychiatric disorders as "oscillopathies". Dementia with Lewy bodies (DLB), which is the second most frequent cause of neurodegenerative dementia, is characterized by an important alteration of brain oscillations. The restoration of oscillations by neuronal entrainment in animal models of neurodegenerative disease has shown a significant reduction in the neuropathological load of toxic proteins, with a consequent significant increase in cognitive performance. Transcranial alternating current brain stimulation (tACS), is a neurophysiological method of non-invasive modulation of the excitability of the central nervous system that is having an increasingly numerous spectrum of potential therapeutic applications. Recent studies have demonstrated the effectiveness of this method in modulating the natural frequencies of cerebral oscillation, underlying multiple cognitive processes such as verbal memory, perception and working memory. On the basis of these premises, the treatment with alpha tACS is proposed in patients with DLB. In this randomized, double-blind, sham-controlled, cross-over study, the investigators will evaluate whether a single stimulation with alpha tACS on the occipital lobes can improve symptoms in patients with DLB.
The aim of the project is to develop the first alpha-synuclein (a-syn)-specific PET tracer. The research phase will exploit ACI's proprietary MorphomerTM library and extensively optimized screening workflow. Promising PET-tracer candidates will be tested for their ability in detecting a-syn pathology in patients with a range of Parkinsonian conditions with different a-syn levels and distributions, comprising hereditary forms of PD and other synucleinopathies.
Dementia; It is a chronic syndrome characterized by a general and progressive deterioration in cognition, including memory, orientation, language, and comprehension. The prognosis of this progressive and neurodegenerative disease after diagnosis may differ between individuals. In its broadest sense, the prognosis after a diagnosis of dementia; can be defined by shortening of life span, high level of cognitive and functional loss, decrease in quality of life and increased need for care. However, the prognosis of different types of dementia is highly variable. Because it is the most common type of dementia, studies are usually on Alzheimer's disease. It constitutes 50-75% of total dementia cases. Vascular dementia is the second most common cause of dementia and accounts for approximately 15% of dementia cases. Dementia with Lewy bodies constitutes 10-20% of the total dementia patients and ranks second among degenerative dementia types. Frontotemporal dementia, which mimics psychiatric disorders and has prominent behavioural problems, and Parkinson's disease-associated dementia, which is characterized by cognitive impairment that can be added to the existing picture in Parkinson's patients, are also counted among other types of dementia. Prognosis-related data on dementia types other than Alzheimer's disease are limited in the literature. Determining the prognosis is important to support patients, anticipate long-term health problems, plan physician and healthcare provision, and support patients with dementia.In view of the lack of sufficient data on dementia types other than Alzheimer's disease, it is aimed to contribute to the literature on this subject and to determine the factors that may affect prognosis, morbidity and mortality in patients belonging to all dementia types.
The primary objective of the study is to evaluate the feasibility of eliciting continuous narrative speech in different neurodegenerative and psychiatric indications, using remote, self-administered speech tasks, as measured by the average length of speech elicitation for each speech task during the first week of self-assessment. Secondary objectives include (1) evaluating the reliability of speech tasks in the remote self-administered setting, as measured by the intra- and inter-subject variance; (2) accessing the adherence of speech tasks in this setting, as measured by the subject average fraction of days during the first week, where at least one task response is submitted; (3) evaluating the feasibility of using speech tasks in the setting of a telemedicine videoconference, as measured by the average length of speech elicited in each group; (4) evaluate whether a set of acoustic and linguistic patterns can detect each indication, compare to either a control group or all other indications, as measured by the area under the receiver operating characteristic curve (AUC), sensitivity, specificity and Cohen's kappa of the relevant binary classifier; (5) evaluating how the performance of such algorithms can be impacted by speaker and environment covariates, as measured by the Kendall rank correlation coefficient of the AUC of each classifier and each of age group, gender and speech-to-reverberation modulation energy ratio.
This study is designed to evaluate the safety and treatment effects of fosgonimeton (ATH-1017) in subjects with Parkinson's Disease Dementia or Dementia with Lewy Bodies, with a randomized treatment duration of 26 weeks.
Dementia with Lewy bodies (DLB) is the second most common cause of dementia and is associated with parkinsonism, hallucinations, and cognitive fluctuations. Diagnosis is often either missed or delayed due to physician lack of familiarity with characteristic features, the inability of structural MRI to detect a pathological signature for this condition, and the lack of healthcare provider access to "indicative biomarkers" that are either unavailable at community clinics or costly due to lack of insurance coverage. The role of resting state function MRI (rs-fMRI) as a diagnostic biomarker has been underexplored in this disease. We propose using a novel cloud-based automated imaging software processing program that identifies abnormal brain networks or connectomes using resting state functional MRI (rs-fMRI) and data from the Human Connectome Project (HCP). Furthermore, the imaging protocol to capture this data is relatively short (15 minutes) and can be performed at most imaging centers, lending potential clinical applicability to this study. We intend to study dysfunctional large scale brain networks (LSBNs) in DLB by comparing rs-fMRI imaging data in this population with cognitively normal (CN) and mild Alzheimer's disease (AD) subjects from the Alzheimer's Disease Neuroimaging Initiative (ADNI)-2/3 database.
The Synuclein-One Study will be evaluating α-synuclein in patients with Parkinson's disease, Multiple System Atrophy, Dementia with Lewy bodies and Pure Autonomic Failure. Using a simple diagnostic test will improve clinical accuracy in diagnosing, earlier diagnosis, and distinguish between neurodegenerative diseases.