View clinical trials related to Cognitive Dysfunction.
Filter by:Long-term cognitive dysfunction greatly influences patient's quality of life after critical illness. However,its neurophysiological basis remains unknown.This is a 3 year fMRI study conducted at the Jiangyin people's Hospital. This study utilize resting-state functional magnetic resonance imaging(fMRI) to investigate the regional alterations in survivors with cognitive impairment.Further, the investigators hypothesize that these regional changes in fMRI activity are predictive of cognitive impairment.
This study is a prospective, multicenter, randomized (1:1) controlled comparative effectiveness trial of a transseptal approach to left ventricular ablation compared to a retrograde aortic approach to prevent cerebral emboli and neurocognitive decline in adults with ventricular tachycardia (VT) and/or premature ventricular contractions (PVCs).
Alzheimer's disease (AD) is the most common cause of dementia and currently has no disease modifying treatments or simple accurate diagnostic tests. The goal of this project is to study how tau (a protein thought to cause AD) is made, transported and cleared in the human body. Better understanding of these processes may lead to improved understanding of AD, earlier diagnosis and a way to evaluate treatment.
Participants will be randomized to exercise intervention and control groups, for 6 weeks. The participants will be examined for following test Mini mental state examination, Trail making test A and B, MOCA. The intervention will consist of twice weekly, 55- 60 minute exercise session for experimental group The participants of control group will receive 20 minutes treadmill walk thrice weekly. Participants will walk at constant pace with zero inclination such that a subjective rate of perceived of 5 to 7 points on the ten-point Borg scale will be reached. Assessment of both groups will be done on first session and on last session.
Cognitive function is the mental action or process of acquiring knowledge and understanding through thought, experience, and the senses. Cognitive impairment describes a noticeable decline in cognitive function which can be temporary or permanent. This decline is measurable and ranges from mild to severe depending on the degree of decline in function. Cognitive impairment can be caused by a variety of diseases or conditions, and it is not limited to a specific age group. It can occur in patients following acquired brain injury such as traumatic brain injury and stroke. Some causes of cognitive impairment are related to health issues that may be treatable, such as medication side effects, vitamin B12 deficiency, and depression. Cognitive impairment has a significant impact on rehabilitation outcome and quality of life. It has significant health and economic impact. People with cognitive impairment report three times longer stay in hospital compared to people hospitalised for other conditions. Cognitive rehabilitation is the process by which cognitive function can be improved and reduces the impact of cognitive impairment. Cognitive rehabilitation helps to improve functional outcomes and quality of life of patients with cognitive impairment. Current cognitive rehabilitation protocols use face to face interaction which cannot optimise the intensity of therapy due a lack of resources. Many areas of UK do not have dedicated cognitive rehabilitation service, programme or personnel and where it exists, the service is restricted largely to the urban centres. These services have high patient to staff ratio with prolonged waiting times often extending over 12 months to access input. Innovative technologies with telemedicine may well bridge the gap in service provision, improve engagement and offer opportunities in resource management. Gamification refers to the application of typical elements of game playing (e.g. point scoring, competition with others, rules of play) to other areas of activity (such as healthcare) to encourage engagement and motivation. It is increasingly being used in rehabilitation and provides a means of developing more effective treatments and interventions. Practice and repetition are key rehabilitation processes that can be enhanced through the use of gamified innovative technology. This protocol describes a trial of an innovative rehabilitation tool for community dwelling adults with cognitive impairment following acquired brain injury. The intervention is a novel interactive system connected to a television set using 3D cameras and tailored software to deliver therapeutic activities to patients within their homes. Each participant will be required to have 2 sessions per week using the device. Each session will last about 20 minutes with 4 different activities of 5 minutes duration each, targeting different domains of cognitive function. Follow up assessments will be carried out after 12 weeks of using the equipment. The primary outcome measure will be the change in the assessment scores on the cognitive tests administered before and after undergoing the rehabilitation programme. Secondary outcomes on quality of life, participation in leisure time activities and satisfaction with the use of the equipment will also be obtained. Safety while using the device will be monitored and any side effects from engaging in the activities will also be monitored.
This study seeks to translate a proven cognitive treatment for Spanish-speaking Hispanics with subjective memory/cognitive complaints or a diagnosis of mild cognitive impairment (MCI) and their care partners. MCI causes cognitive changes that are noticed by the individual or others. These changes do not significantly interfere with independence. MCI also increases the risk of developing Alzheimer's or another dementia, particularly in Hispanics/Latinos. There is no medication that improves cognition or delays MCI. However, providing cognitive treatment can alleviate the effects of MCI. Only a few cognitive interventions have been proven effective in the U.S., but none has been adapted to the Spanish-speaking Hispanic community. Our proposed cognitive treatment uses effective strategies (e.g., calendar and notetaking) to compensate for memory loss. The investigators will first follow international guidelines to ensure proper translation of our treatment into Spanish. Then, the investigators will pilot test our translated intervention in 20 Spanish-speaking Hispanic participants with subjective memory/cognitive complaints or a diagnosis of MCI and their care partners (40 participants total). The investigators will also assess the degree to which participants follow medical advice; their beliefs in their ability to succeed in and do daily activities, including managing medications; their feelings and potential burden associated with caregiving before and after the treatment as well as 8 weeks later. Results will allow the investigators to determine whether our treatment was effective and to calculate the number of participants required for larger studies. Overall, the study represents an important step to respond to the needs of the Hispanic community.
The purpose of this study is to examine therapeutic efficacy of cognitive Training based on location information and activity in people with mild cognitive impairment
This protocol is designed to assess the utility of a new positron emission tomography (PET) radiopharmaceutical to image tau, [18F] JNJ067, invented by Janssen Pharmaceutical companies of Johnson & Johnson. To date, the radiopharmaceutical has been used in a small group of patients and controls (<20). The study plans to expand the range and number of subjects, to examine a total of 18 participants including controls and patients with Alzheimer's disease (AD) and other dementias. All patients will be recruited from the University of California, San Francisco (UCSF) Memory and Aging Center (MAC) and controls will be recruited from the University of California, Berkeley Aging Cohort Study (BACS). Patients will undergo a multidisciplinary clinical evaluation for diagnosis and a cognitive assessment at the MAC; controls will undergo the usual BACS cognitive assessment performed on the Berkeley campus. Following these evaluations UCSF subjects will undergo magnetic resonance imaging (MRI) scanning at the UCSF Neuroimaging Center and blood sampling for genetic testing also at UCSF, and BACS subjects will undergo an MRI at the University of California Berkeley 3T Brain Imaging Center (in Li Ka Shing hall on the Berkeley campus) and blood sampling for genetic testing at the time of the PET scan. All subjects will come to Lawrence Berkeley National Law (LBNL) where they will have, on the same day, a C-11 Pittsburgh compound B (PIB) PET scan to measure brain amyloid, and an F-18 JNJ067 PET scan to measure brain tau. These scans will be examined and analyzed by LBNL staff, and data will be processed to examine basic questions about the quantitative behavior of JNJ067. Scan results will not be returned to control subjects, but physicians at UCSF will receive scan results on MAC patients and will share results with participants. As part of this protocol, the investigators also plan to share the acquired data widely. All data will be de-identified. Data will be shared with the inventors (Janssen/Johnson & Johnson) as well as other scientists worldwide. As this is a new radio tracer, the investigators anticipate that there will be interest in seeing the actual data to answer questions about uptake and application of the method in future studies in many different laboratories. Shared data will include PET scans, MRI scans, genetic testing, and neuropsychological results.
This project aims to examine the effect of a 5-month period supervised exercise intervention on brain, cognition, OMICs, Molecular Markers and functional status in older people at risk of mild cognitive impairment. Secondarily, the effect of this intervention on antioxidant capacity, lipid metabolism and glucose, physical health (functional capacity, blood pressure, body composition) and mental (quality of life and depression) will be studied, as well as other factors risk (genetic and biological) for the development of Alzheimer. A total of 100 people aged between 65 and 75 years old at risk of mild cognitive impairment will be randomly distributed in the supervised exercise intervention group (n = 50) and control group (n = 50). The design will include a 5-month intervention with measurements at pre and post intervention and a third measurement (retest) after 3 months of completion. The multicomponent supervised exercise program will include aerobic, strength, cognitive and coordinative-agility-balance works, and progression will be established in different load parameters (frequency, volume, intensity, density). Therefore, randomized controlled studies are needed to know the specific effect of dose-response considering the various dimensions in parallel such as neuroimaging, cognitive status and OMICS. This will allow us to understand from a comprehensive perspective the causes and mechanisms underlying the response. This project will significantly increase scientific knowledge about the role of exercise on brain as a therapeutic measure in people at risk of mild cognitive impairment from a multidimensional perspective. The project will have a significant impact at social and economic level by transferring the study findings to social and health setting by means of agents and networks provided for the project.
This is a longitudinal, observational study evaluating the imaging characteristics of the tau PET radioligand [18F]MK-6240 in Alzheimer's disease (AD), Mild Cognitive Impairment (MCI) and Healthy Volunteer (HV) subjects. Up to 42 subjects, including approximately 28 MCI/mild AD subjects, up to 5 moderate AD subjects, and 9 similarly aged HV subjects will be consented and screened. Imaging procedures include [11C]PiB to evaluate amyloid deposition, [18F]MK-6240 PET, and structural MRI. All subjects complete an evaluable baseline [18F]MK-6240 PET scan, as well as scans at 6, 12 and 24 months post-baseline. If unable to complete the 6 month, 12 month, or 24 month visit, an 18 month and/or 30 month visit may instead be scheduled, totaling a maximum of four time points.