View clinical trials related to Dementia.
Filter by:The primary objective of this study will explore whether circulating acyl-ghrelin (AG) and unacylated-ghrelin (UAG) are reduced in neurodegenerative disease associated with cognitive impairment. It will focus on validating pilot data generated following the analysis of Parkinson's disease (PD), Parkinson's disease dementia (PDD) and healthy cohorts (IRAS project ID: 250933). In addition to the advantages of study replication we will extend the analysis to include two further patient groups that are associated with cognitive impairments, namely, Alzheimer's dementia (AD) and dementia with Lewy bodies (DLB). This study will increase confidence in the replication of our findings. This will be a cross-sectional study using peripheral venous blood.
Dementia, especially dementia caused by Alzheimer's disease, is considered one of the most severe health problems of our time. It is currently known that the disease begins many years before clinical symptoms appear. The sooner the patient is diagnosed, the sooner the patient will be in a position to prevent further deterioration. A recent orientation is the analysis of language in relation to the description of images with a high and varied semantic and emotional content. It can be studied that changes in the description of an image check if these changes are associated with the evolution of a person with probable impairment both in memory and cognitive as well as emotional, psychiatric, behavioral and even in their interaction with environmental factors especially those associated with socialization and loneliness. Thus, the purpose of this study is to validate speech analysis AI models.
Novel blood-based biomarkers of Alzheimer's disease (AD), such as plasma levels of tau phosphorylated at threonine 181 (p-tau181), have shown great promise in detecting early AD pathology. While current studies point to this biomarker as having great clinical utility, one necessary step before clinical implementation is developing safe and effective methods for disclosure of results. Past risk disclosure studies have shown that disclosing risk for AD based on genetics or amyloid status is safe, but these studies have largely focused on cognitively unimpaired individuals. This study seeks to develop comprehensible educational materials to aid risk disclosure and examine the effect of risk disclosure based on plasma p-tau181 results in a group of participants with mild cognitive impairment (MCI) at imminent risk of converting to dementia. First, educational materials will be developed in collaboration with health communication experts and then refined in focus groups made up of individuals with MCI. Educational materials will be analyzed on several key reading and comprehensibility metrics and will include personalized risk estimate based on a well-accepted risk algorithm (Cullen, et al., 2021). Next, these educational materials will be utilized to disclose risk in a randomized controlled trial with an active control arm receiving disclosure based on age, sex, and cognitive status (based on Mini-Mental State Examination), meant to mimic common methods of clinical diagnostic and prognostic decision making, and an intervention arm receiving disclosure based on the above factors plus plasma p-tau181 results. Outcomes will include measures of comprehension and psychological well-being (anxiety, depression, hopelessness, and distress) and will be assessed immediately after risk disclosure and again at six-month follow-up. It is hypothesized that risk disclosure based on plasma p-tau181 is not more psychologically harmful or less comprehensible than disclosure based on demographic factors and MMSE. This pilot study will provide a necessary step towards moving plasma p-tau biomarkers towards safe clinical implementation and will develop educational materials that can be utilized in future studies and clinical practice.
This is a first in human study that will assess the safety and diagnostic performance of [18F]RP-115 (fluorine-18 labeled RP115), a positron emission tomography (PET) agent. This agent has the potential to identify the early changes that occur in the brains of patients with Alzheimer's disease (AD) and frontotemporal dementia (FTD).
The primary objective of the Vanderbilt Alzheimer's Disease Research Center (VADRC) is to provide local and national researchers with access to a well-characterized and diverse clinical cohort, including participant referrals, biosamples, clinical data, and neuroimaging data. The VADRC Clinical Core will create an infrastructure to support research efforts of both local and national investigator studies to develop early detection, prevention, and treatment strategies for Alzheimer's disease. The Clinical Core intends to enroll up to 1000 participants, including individuals who are cognitively unimpaired, have mild cognitive impairment, or have Alzheimer's disease. This cohort of about 1000 participants will be called the Tennessee Alzheimer's Project. Participants will be seen annually for comprehensive clinical characterization and then referred to other studies to enhance Alzheimer's disease research activities.
The study will be a 36-week multicentre, double-blind, placebo-controlled phase Ⅱb trial in China. Total 360 participants aged 55-80 years will be randomized to Tian Ma Bian Chun Zhi Gan group (84mg per day) or to placebo group. The primary endpoint will be Vascular Dementia Assessment Scale-cognitive subscale and Clinical Dementia Rating-Sum of Boxes. Secondary outcomes included changes in Mini-Mental State Examination, Clock Drawing Test, Delayed Story Recall and Ability of Daily Living. Patients' safety will be assessed by recording of adverse events, clinical examinations, electrocardiography and laboratory tests. The patients, caregivers, and investigators will be blinded to the treatment allocations.
The purpose of this research study is to develop and test an artificial intelligence intervention for emergency department (ED) discharge care transitions experienced by caregivers of older adults with cognitive impairment.
We hypothesize that the antioxidant and cytoprotective functions of vitamin E combined with the cortisol-lowering effect of chocolate polyphenols and physical activity may help prevent the age-dependent decline of mitochondrial function and nutrient metabolism in skeletal muscle, key underpinning events in protein-energy malnutrition (PEM) and muscle wasting in the elderly. To test this hypothesis, a vitamin E functionalized dark chocolate rich in polyphenols will be developed with the collaboration of Nestlè Company, and its effects will be investigated combined with physical activity in a 6-month randomized case-control trial on pre-dementia elderly patients, a well-defined population of subjects at risk of undernutrition and frailty. Subjects stabilized on a protein-rich diet (0.9-1.0 g protein/Kg ideal body weight/day) and physical exercise program (High Intensity Interval Training specifically developed for these subjects), will be randomized in 3 groups (n = 34 each): controls (Group A) will maintain the baseline diet and cases will receive either 30 g/day of dark chocolate containing 500 mg total polyphenols (corresponding to 60 mg epicatechin) and 100 mg vitamin E (as RRR-alpha-tocopherol) (Group B) or the high polyphenol chocolate without additional vitamin E (Group C). Diet will be isocaloric and with the same intake of polyphenols and vitamin E in the 3 groups. Muscle mass will be the primary endpoint and other clinical endpoints will include neurocognitive status and previously identified biomolecular indices of frailty in pre-dementia patients. Muscle biopsies will be collected to assess myocyte contraction and mitochondrial metabolism. Laboratory endpoints will include the nutritional compliance to the proposed intervention (blood polyphenols and vitamin E status and metabolism), 24-h salivary cortisol, steroid hormones and IGF-1, and molecular indices of inflammation, oxidant stress, cell death and autophagy. These parameters will be investigated in muscle and blood cells by state-of-the-art omics techniques. Molecular and nutritional findings will also be confirmed in vitro using skeletal myotubes, blood leukocytes and neural cell lines. Clinical and laboratory results will be processed by a dedicated bioinformatics platform (developed with the external collaboration of the omics company Molecular Horizon Srl) to interpret the molecular response to the nutritional intervention and to personalize its application.
In the post-epidemic era, it is necessary to develop support programs for families with dementia in empirical care. The reminiscence therapy was adopted by patients with mild and moderate dementia those intervention have had good memory stimulation and emotional support effects in the previous studies. However, the application of digital reminiscence therapy that cross spatial and geographic constraints, but related research still has limitations on the knowledge of this topic. To use the official Line @ account as a media platform to develop a digital reminiscence group program (DRG), and to investigate the effects of mobile-application-based DRG on the psychoneurological symptoms, depression, life meaning and burden of family caregiver in people with mild and moderate dementia (PMMD).
The goal of this project is to quantify brain fibrin content using 64Cu-FBP8-PET in the brains of subjects ranging from cognitively normal to clinically diagnosed with ADRD to evaluate potential regional differences.