View clinical trials related to Cognitive Dysfunction.
Filter by:This study is aiming to evaluate the efficacy and safety of Guilingji capsule in older adults with mild-to-moderate cognitive impairment who diagnosed as the kidney and marrow deficiency pattern in TCM. A total of 348 participants are evenly assigned to two arms. In the intervention arm, participants receive Guilingji capsule and Ginko Biloba Extract mimetic in combination, while the other arm will receive Ginko Biloba Extract tablet with Gulingji mimetic.
Postoperative delirium (POD) and postoperative cognitive decline (POCD) are common after surgeries in the elderly, especially after cardiothoracic surgery. These conditions are associated with adverse short- and long-term outcomes. Multiple conditions in the perioperative period have been proposed as risk factors of POD and POCD. Incidences vary across institutions due to differences in screening and diagnostic tools.
This study investigates the effect of dietary inorganic nitrate supplementation on 1) large elastic artery stiffness and hemodynamics and 2) cerebrovascular function in middle-aged and older adults. Participants will be randomized to consume either nitrate-containing or nitrate-depleted beetroot juice.
This Phase II randomized clinical trial aims to test if supplementation with high dose oral vitamin D will successfully correct vitamin D insufficiency, compared to treatment with standard (RDA) dose vitamin D in a diverse community-based elderly cohort. The effect of high-dose vs. standard-dose vitamin D on altering cognitive trajectories will also be assessed and data will be expected to be used in designing a potential definitive Phase III trial in elderly groups at risk for dementia. A total of 180 elderly persons with longitudinal biomarkers, neuropsychological testing and brain MRI scans will be enrolled, with 152 (~50 with MCI, 50 with mild AD and 50 with no cognitive impairment) expected to complete the 3½-year study. One-half of each diagnostic group will be randomized to treatment with high-dose vitamin D3 (4,000 IU daily) or to standard dose Vitamin D (600 IU capsule daily + ~200 IU dietary = ~800 IU total/day). Longitudinal MRI analyses will provide an estimate of the treatment effect size on brain atrophy rate. Vitamin D receptor genotype polymorphisms and their impact on response to oral supplementation will also be examined. If vitamin D supplementation improves cognitive outcome, this could have a large impact on the public health, since low vitamin D status is a common, readably treatable condition which may provide a novel window to prevent dementia and AD. Furthermore, the higher prevalence of AD and dementia in African Americans and Latinos could be partially attributable to vitamin D insufficiency.
The purpose of this study is to assess cognitive function using a rapid, portable, computerized neurocognitive testing device in a wide variety of clinical settings.
The Overture Study is a randomized, controlled, single-blind multi-center clinical trial using the GammaSense Stimulation system to study safety, tolerability, and efficacy in people with mild to moderate cognitive impairment.
The research proposed here will evaluate whether a web-based recreation intervention, called ArtontheBrain, has positive health benefits to older adult users. ArtontheBrain incorporates three basic activities; learning (history of the artwork), play (telling stories, solving puzzles) and socializing with other users, either in person or online. It can be used alone, with another person, or in a group. It is modeled after participatory arts-based interventions which studies have shown are associated with health benefits in older adults, such as improved sense of well-being, physical health, decreased risk of dementia, and reduced need for health services. Our study will test ArtontheBrain at research sites and health agencies in Canada, the U.S., and the U.K. with older adults with and without cognitive decline. The study will also examine how well that app can support different user play modalities and whether it can effect positive health outcomes similar to face-to-face arts interventions.
The purpose of this international, multi-centre observational study is to describe perioperative cognitive changes (pre-existing neurocognitive disorder [NCD], postoperative delirium [POD] and Postoperative Cognitive Dysfunction [POCD]) up to five years after elective surgery in a mixed cohort. Measurements and definitions of cognitive outcomes will be based on current consensus and used for further harmonization in future clinical studies on perioperative cognitive trajectories. This is a feasibility approach to identify an effective screening procedure and estimate loss to follow up rates for the planning of future intervention studies. Data from this trial may also serve to facilitate and implement time effective cognitive screening and risk stratification concerning postoperative cognitive decline in the anaesthesiological preoperative assessment.
Pulmonary rehabilitation program with aerobic and strengthening for 3 months will be applied to the candidates for lung transplantation. The program will be designed to be 2 days supervised weekly and 3 day home program. Cognitive functions and exercise capacities of the patients before and after the program will be evaluated.
The proposed studies are aimed to measure Tau and P-Tau levels in pre- and postoperative blood, urine, feces and saliva, as well as to assess pre- and postoperative neurocognitive function in children (3 to 5 years old) who will have surgery under general anesthesia (single versus multiple exposures). The studies will establish a system to study biomarkers of the anesthesia/surgery-associated neurocognitive impairment in children and generate hypothesis that Tau or P-Tau serves as the biomarker of such neurocognitive impairment in children.