View clinical trials related to Cognitive Dysfunction.
Filter by:Whereas the advantageous effects of exercise-training on memory is increasingly recognized, the practicality and clinical usefulness of such interventions in community-dwelling older African Americans (AA)s Mild Cognitively Impaired (MCI) subjects, and the mechanism by which an effect occurs need elucidation. Because aerobic-exercise can improve emerging cardiovascular (CVD)-related risk factors for cognitive decline such as lipids, inflammatory cytokines and glucose homeostasis; the Investigators will examine training effects on these and related biomarkers. The imperative for this study is further underscored by the fact that, AAs: i) have high rates of dementia, and ii) have paucity of cross-sectional, and lack prospective data on the effects of exercise on cognition. To overcome barriers to recruitment and retention, enhance compliance with a long exercise program (3-times/week), and maximize the use of available resources, the Investigators will use a community-based approach. Therefore, the primary objectives of this study build on the Investigators' experience, and will compare the effects of aerobic-exercise to stretch-exercise (control) in community-dwelling AA MCI subjects. Following the initial 6 months active intervention, the aerobic-exercise group will follow a prescribed but free living 40 minutes, 3 time/week exercise regimen while the control group returns to usual care plus stretch-exercise for additional 12 months. This study will facilitate the estimation of sample size for a larger confirmatory study in AAs. A newly acquired direct oversight of the DC Ward-6 Senior Wellness Center and its infrastructures by the Howard University Division of Geriatrics will provide additional resources and access to the community. In addition to the Investigator's feasibility aims, the Investigators will determine performance on cognitive tasks using the Alzheimer's Disease Assessment Scale-Cognitive Sub-scale (ADAS-Cog) and Clinical Dementia Rating Scale (CDR) sum of boxes supplemented by tests of executive function (EF) and Functional Activity Questionnaire (FA) and together as ADAS-Cog-Plus; changes in brain volume regions of interest (ROI) with Magnetic Resonance Imaging (MRI), selected CVD and AD-related bio-markers.
The main purpose of this study is to evaluate the safety and tolerability of the study drug known as LY2599666 in different groups of people - those who are healthy, those who have mild cognitive impairment due to Alzheimer's Disease (AD), and those with mild-to-moderate AD. The study will measure how much LY2599666 gets into the bloodstream and how long it takes the body to get rid of it. It will also evaluate how LY2599666 affects the body. The study has three parts. Part A will last about 2 months. Parts B and C will each last about 23 weeks. Participants may only enroll in one part.
This two-year study will evaluate the feasibility of an exercise training augmentation for cognitive training intervention to improve memory performance in Veterans with a diagnosis of amnestic Mild Cognitive Impairment (aMCI). This is a two-phased trial: 1) an exercise phase and 2) a cognitive training program. The exercise phase will be an aquatic based exercise program. A combination of exercise and cognitive training programs designed for persons without cognitive impairment have significantly improved memory more than other single intervention groups (exercise only, cognitive training only) and given the success of combination training programs with healthy older adults, it is important to adapt these programs for persons beginning to exhibit clinically significant memory problems, such as those with aMCI.
This study plans to establish a large bank of blood, cerebral spinal fluid (CSF), imaging, and clinical data. These data and samples will be used for future research into the causes of Alzheimer's disease (AD), Down Syndrome (DS) and other diseases that cause thinking and memory problems. This future research will also study how treatments for these diseases work. This research may help develop new treatments for some diseases of the nervous system and help understand these diseases better.
This study will evaluate the ability of sounds played during slow wave sleep using a phase locked loop algorithm to enhance slow wave sleep and memory in cognitively healthy older adults and in those with amnestic mild cognitive impairment.
This protocol describes a study to validate Neurotrack's visual paired comparison task, aimed at early detection and monitoring of memory impairment. The investigators will determine whether the novel task developed by Neurotrack is associated with markers of brain pathology associated with very early Alzheimer's disease. The elderly subjects studied will be cognitively normal (CN) or have amnestic mild cognitive impairment (aMCI). For the current study, the primary brain pathology parameters will be derived from MRI scans. Data from this study will be correlated with data from a parallel study designed to validate a larger group of new cognitive tasks by correlating test performance with a broader array of biomarkers of Alzheimer's disease.
The project is designed to generate critical information to design and justify a robust trial on lithium prevention of the onset of Alzheimer's disease (AD). Lithium exerts and inhibitory effect on Glycogen synthase kinase 3 (GSK-3) a brain biomarker of neuroprotection. The study consists of 3 phases: 1. Phase 1 investigates rats to establish a reliable method to measure brain biomarker activity levels from blood biomarker activity. 2. Phase 2 will determine whether the GSK3 enzyme activity is significantly different in subjects with MCI compared to normal individuals. 3. Phase 3 investigates patients with MCI taking lithium to establish the minimum lithium dose required to inhibit the activity of GSK-3.
As cancer mortality rates improve in Asia, there is an increasing focus on patient-reported outcomes and survivorship issues. In view of the numerous medication and psychosocial issues that are commonly faced by early-stage breast cancer survivors, it deems important to develop and conduct specific interventional programs to mitigate these problems. In the literature, it is well recognized that psychosocial interventions are effective to manage emotional distress and quality of life, with the evidence clearly clustered in studies on female patients with breast cancer. One meta-analysis suggested that psycho-oncologic interventions including individual psychotherapy, group psychotherapy, psychoeducation, relaxing training can produce positive effects on emotional distress, anxiety and depression, and health-related QOL. The investigators hypothesize that a significant reduction in anxiety, improvement of cognition and improvement of health-related quality of life among those who receive psycho-education, in comparison to those in the usual care. Hence, this randomized trial is designed to assess the effectiveness of a psycho-educational group (PEG) intervention on supportive care and survivorship issues, which include anxiety, depression, cognitive function, toxicities management of cancer- or treatment- related physical symptoms, and health-related quality of life in early-stage breast cancer patients.
The purpose of this work is to determine whether preoperative cognitive screening of patients over the age of 65 can be used as predictor of postoperative outcomes in patients undergoing lower extremity surgical procedures. This work is important as it may aid patients, families and physicians about the appropriateness of the surgical procedure and in providing resources to patients who are at the highest risk of adverse outcomes.
Patients with cognitive impairments following a stroke are often denied access to inpatient rehabilitation, despite evidence of its benefits for them. Patients with cognitive impairment who are admitted to inpatient stroke rehabilitation often receive services based on outdated impairment-reduction models, rather than recommended function-based approaches. These two issues, reduced access to rehabilitation and the knowledge-to-practice gap, both stem from a reported lack of skills and knowledge on the part of some stroke rehabilitation teams to foster recovery in people with cognitive impairments. To address these issues, the investigators will implement and evaluate a multi-faceted, supported, integrated knowledge translation initiative, targeted specifically at the inter-professional application of the Cognitive Orientation to daily Occupational Performance (CO-OP), called CO-OP KT. CO-OP is a contemporary, effective, cognitive strategy-based treatment approach. CO-OP KT is a combination of the CO-OP Approach with multi-faceted knowledge translation support. Clinical staff at participating institutions will receive CO-OP KT training. The long-term objective of CO-OP KT is to optimize functional outcomes for individuals with stroke and cognitive impairments. Three specific research questions have been posed, one of which is the focus of this registration. That sub study relates to patient outcomes following the CO-OP KT training initiative and it will be addressed using a non-randomized design with historical controls. Patient participants who enroll in the project prior to implementing the CO-OP KT training will belong to the historical control group. Patient participants who enroll in the project after the CO-OP KT training will belong to the CO-OP KT Exposure group.