View clinical trials related to Cognitive Dysfunction.
Filter by:The goal of this clinical trial is to compare the permeability of blood-brain barrier between the intravenous anesthesia group and the inhalation gas anesthesia group in the elderly patients undergoing surgery. The main questions it aims to answer are: - [Is the permeability of blood-brain barrier between the intravenous anesthesia group and the inhalation gas anesthesia group in the elderly patients different?] - [Is the incidence of postoperative cognitive dysfunction between the intravenous anesthesia group and the inhalation gas anesthesia group different?] Participants will be anesthetized with different categories of anesthetics. - Intravenous anesthetics - Inhalation gas anesthetics
The benefits of multicomponent physical exercise (MPE) in the mental and physical health of older adults are widely accepted. However, during Covid19 pandemic, some face-to-face programs for physical exercise were canceled. The situation was particularly complex in nursing homes (NHs) because residents were often confined to their floors and many leisure activities were canceled. Online physical exercise sessions increased their popularity during the pandemic. However, there is no evidence that online physical exercise sessions are an effective alternative to face-to-face sessions for older people living in NHs. The current project aims to assess a synchronous online MPE program's feasibility, acceptability, and effects. With this aim, first a synchronous online MPE intervention was designed and then a multicenter randomized controlled trial with 3 branches was developed: face-to-face MPE, online MPE and control. Participants in the control group will receive advice to maintain physical activity and reduce sedentary behavior. Additionally, those in the intervention groups will also participate in 24-week individualized and progressive MPE programs performed at moderate intensity that will be focused on strength, balance, and endurance. MPE will be performed through supervised sessions (2 per week). One of the intervention groups will be supervised face-to-face whereas the other will be supervised synchronously online. Study assessments will be conducted at baseline, at the end of the 24-week intervention, and after 24-week follow-up. The primary outcomes of the study will be changes in mental and physical health. Secondary outcomes will include other parameters of mental and physical health, together with physical activity, frailty, quality of life, and biological markers. The dropout rate, the adherence, the injuries and other adverse events suffered by the participants, and technical incidences produced in the online modality will be recorded. A mixed-model ANCOVA will be performed to compare the data between intervention and control groups, considering as co-variables baseline measurements. The statistical analysis will be performed on the whole sample and separated for sex/gender. The study received ethical approval (M10_2022_405_IRAZUSTA ASTIAZARAN). The results of this project will be transferred to institutions and entities involved in managing NHs to increase the opportunities for the residents to remain physically active.
The purpose of this research is to determine the extent to which oculomotor function accurately detects THC-impairment, if cannabis use experience impacts this detection threshold, and to examine how the oculomotor index corresponds to a measure of sustained attention. A double-blind, placebo-controlled, within-subjects crossover design will be used to examine the dose-effects of THC (0, 5mg, 30mg) on oculomotor performance tasks and a sustained attention task in frequent and infrequent cannabis users. Results from the study will advance the investigators' understanding of the effect of THC and cannabis use frequency on oculomotor function and sustained attention, and will directly inform the validity of the investigators' oculomotor platform for identifying acute THC- induced impairment in frequent and infrequent users.
The goal of this type of study: clinical trial is to assess K-OCS clinical utility in participant population. The main aims: validate the reliability and validity of the Korean version of the Oxford Cognitive Screen (K-OCS) analyze its sensitivity, specificity, and diagnostic accuracy, and compare its examination participation rates with existing assessment tools to determine the effectiveness of K-OCS in detecting post-stroke cognitive impairment.
Evidence shows that people with dementia have a higher prevalence of sleep disturbance, cognitive decline, behavioral disturbance, and experience motor dysfunction. These symptoms are interrelated. However, few randomized controlled trial (RCT) studies implement dual-task training for mild cognitive impairment and mild dementia, especially for those who experience sleep problems and behavioral disturbances. Therefore, this study aims to analyze the effect of dual-task training in improving global cognitive function, executive function, working memory, sleep, behavioral disturbances, balance, and flexibility among people with mild cognitive impairment and mild dementia. The main questions it aims to answer are: 1. . Does dual-task training affect primary outcomes (global cognitive function, executive function, and working memory) 2. . Does dual-task training affect secondary outcomes (including sleep quality, behavioral disturbances, balance, and flexibility) for people with mild cognitive impairment and mild dementia?" The length of dual-task training is 12 weeks; sessions are 3 times per week, each session lasts 45 minutes, and total sessions are 36. There are three groups of intervention (dual-task training, cognitive training, and motor training). While the control group receives the usual care. Researchers will compare the experiment and control groups to see the effect of the dual-task training.
Evaluation of the Effects of a Nutritional Intervention of Ketogenic Medium-chain Triglycerides and B-vitamins on Cognitive Functioning in Older Adults With Mild Cognitive Impairment (COGNIKET-MCI)
The objectives of this study are to demonstrate the feasibility of implementing a deprescribing nudge intervention using pragmatic methods, confirm that outcomes can be feasibly measured and evaluated at scale in a subsequent embedded pragmatic clinical trial (ePCT), and explore representativeness of persons living with dementia and care partners identified.
The goal of this clinical trial is to Explore and verify whether 40Hz audio and binaural beat 40Hz audio can improve the postoperative cognitive dysfunction seen in patients with aneurysmal subarachnoid hemorrhage. This study is a single-center, prospective, randomized, controlled clinical trial. Patients with aneurysmal subarachnoid hemorrhage were selected and randomized into intervention group (audio adjuvant group) and control group (conventional treatment group). Patients in the intervention group will receive audio therapy after surgery, and patients in the control group will receive usual care. EEG, fMRI and mRS scores were evaluated after 3 months of follow-up.
Pentoxifylline can improve cognitive impairment after ischemic stroke, possibly by improving the level of cerebral blood flow, affecting the content of blood oxygen and metabolic substances in the brain, and then playing a protective role in the transmission of nerve electrical signals, and ultimately improving cognitive function. The patients with cognitive impairment and non-dementia PSCIND after ischemic stroke were randomly divided into two groups. In addition to the basic drugs of ischemic stroke, the patients were given pentothemine sustained release tablets and blank control respectively to observe the effects of pentothemine on cognitive function and neuronal electrical signals in the patients with ischemic PSCIND. It is expected to explore the possible internal biological mechanism by using transcranial Doppler, oxygen-dependent functional magnetic resonance imaging and craniocerebral magnetic resonance pop analysis. Finally, statistical correlation analysis was used to elucidate the specific mechanism of pentoxifylline in improving cognitive function of non-dementia patients with cognitive impairment after ischemic stroke.
1. Explore the expression level of immune checkpoint VISTA in peripheral blood and cerebrospinal fluid of patients with cardiovascular risk factors; 2. Discuss the correlation between different risk factors (mainly hypertension, diabetes, smoking, hyperlipidemia, hyperhomocysteinemia, etc.) and the expression level of immune checkpoint VISTA in peripheral blood and cerebrospinal fluid of patients with cerebrovascular diseases and immune-inflammatory related diseases of the nervous system; 3. Explore the correlation between different immune inflammatory factors (IL1, IL6, IL10, INFγ, TNFα) and the expression level of immune checkpoint VISTA in peripheral blood and cerebrospinal fluid of patients; 4. Track and explore the dynamic changes of immune checkpoint VISTA in peripheral blood and cerebrospinal fluid of patients with cardiovascular risk factors in 3 months, 1 year, 3 years, and 5 years.