View clinical trials related to Cognitive Decline.
Filter by:In a society with increased life expectancy, the economic, social and personal burden of dementia increases. Dementia is often caused by a combination of neurovascular and neurodegenerative diseases. Impaired brain clearance is suggested to be closely related to dementia development, as waste products (e.g. amyloid beta) accumulate in the brain, leading to neurodegeneration. Cerebral small vessel disease (SVD) is the most common neurovascular disease that even contributes to about 45% of dementia pathophysiology in patients with a diagnosis of Alzheimer's dementia. White matter hyperintensities of presumed vascular origin (WMH) are the key brain MRI manifestation of cerebral SVD. There is evidence that the currently known and MRI-visible WMH are landmarks of an already progressed stage of the underlying pathology. The pathophysiology of WMH has been attributed to multiple underlying mechanisms, such as hypoperfusion, defective cerebrovascular reactivity and blood-brain barrier dysfunction. Furthermore, different anatomical locations and different types of WMH are related to different underlying pathological changes. Using ultra-high field 7T MR imaging techniques WMH lesions can be detected with a higher sensitivity and resolution than on 3T MRI. The hypothesis is that different pathological mechanisms of cerebral SVD lead to variations in WMH shape. Moreover, the brain clearance ('glymphatic') system of the brain appears to be tightly connected to dementia pathology. Thus, novel markers of glymphatic activity could aid to describe and understand the pathology.
Older South Asian family caregivers experience elevated psychological stress and limited physical activity (PA) due to caregiving responsibilities and additional factors such as lack of access to services, cultural/linguistic barriers, stigma and discrimination. South Asian family caregivers are especially underserved and are a growing ethnic group in the US. Both PA and cognitive training (CT) have shown to improve cognitive function in older adults who experience cognitive function decline because of psychological stress. However, there are no studies using this approach for this population. We propose a randomized control trial pilot study to address this gap. Driven by a Community Advisory Committee (CAC) we will develop this 12-week mindful walking intervention using a participatory research methodology in partnership with UIC's Cognition Behavior and Mindfulness Clinic that combines the PA of walking and the CT through mindfulness. We will recruit fifty participants and will randomly and equally assign 25 people to the intervention and 25 people to the control group. The intervention will include: 1) a mindful walking training followed by 2) a prescribed mindful walking regimen, 3) self-reporting of adherence to regimen by the participants using activity logbooks and use of a user-friendly PA tracker (Fitbit) for daily step count, and 4) personalized text messages with reminders and motivational messages for participants to do the mindful walking as prescribed including a weekly check-in call or text message for accountability. The primary aim of the proposed pilot study is to evaluate the feasibility and acceptability of the protocol and intervention implementation. A secondary aim will evaluate the intervention to examine preliminary efficacy in reduction of psychological stress, improvement in cognitive function, increase in physical activity, and increased self-efficacy (self-efficacy for coping with stress, self-efficacy for physical activity, and overall self-efficacy). The findings of this pilot project will provide evidence-based data to support a larger scale study proposal for future funding such as the National Institute on Disability, Independent Living, and Rehabilitation Research (NIDILRR) field initiative award, or the National Institute of Health (NIH) Research Project Grant (R21 NIH Exploratory/Developmental Research Grant Award) award, especially National Institute on Aging (NIA) grants.
The current study is a mechanistic study to evaluate working memory gains from application of transcranial direct current stimulation (tDCS) in older adults with mild cognitive impairments (MCI) compared to cognitively healthy control
To examine the effects of a 1-year cluster-randomized controlled intervention of MIND diet on cognitive function among 240 participants with mild cognitive function (MCI) aged 50 years and above from 4 communities.
Although empirical research suggests that physical activity interventions benefit cognition and sleep in older adults in general, the possible benefit of physical activity is understudied in low-income older adults. The study aims to test the immediate and sustaining efficacy of an mHealth-facilitated Physical Activity Toward Health (mPATH) intervention on cognitive function and sleep in low-income older adults.
PoZibio™ capsules contains Lactobacillus paracasei which has been heat-killed (post-biotic). The researchers will recruit a cohort of middle aged and older adults (>50 years) who will be randomised into PoZibio™ (2 x capsules daily) or placebo (2 x capsules daily) supplementation for 6 weeks. Subjects will be asked to take both capsules in the morning with their breakfast. The placebo will be matched to the active product by taste and texture. Electroencephalography (EEG) shall be combined with 3 psychological tasks, to measure a variety of cognitive domains including attention, processing speed, accuracy, and response inhibition. These psychological tasks shall include the Stroop task, the Go/No-go task, and the Flanker task. Before taking part in the psychological tasks, participants shall be required to have their EEG resting state recorded, requiring them to participate in an Eyes Open/Closed Task. The Mini Mental State Exam (MMSE) questionnaire shall be used as a digital screening tool to assess global cognitive function in participants both prior to and following the 6-week PoZibio trial. The geriatric depression scale (GDS) shall also be used as a digital screening tool to assess for depressive symptomatology in older adults. The EQ-5D questionnaire shall be used to obtain an overall profile of the health state and quality of life of participants before and after the trial. The researchers will collect venous blood samples for the investigation into the chemical composition using metabolomics, the quantification of short chain fatty acids as well as clinical biochemistry, before and after the trial. Aim: A randomised, placebo controlled parallel human clinical trial of heat-treated Lactobacillus paracasei (post-biotics) in healthy middle aged and older subjects is proposed, to assess the potential for clinically relevant benefits in terms of cognitive function.
The goal of this clinical trial is to test 6 months of aerobic exercise in older adults who are 65 years or older and have mild cognitive impairment (MCI) or probable/possible mild Alzheimer's Disease. The main questions it aims to answer are: - test the effects of aerobic exercise on aerobic fitness, white matter hyperintensity (WMH) volume, and patient-centered outcomes; - identify the best exercise to improve aerobic fitness and reduce non-responses over 6 months; and - examines the mechanisms of aerobic exercise's action on memory in older adults with early AD. Participants will receive 6 months of supervised exercise, undergo cognitive data collection and exercise testing 5 times over a year span, have an MRI brain scan 3 times over a one-year span, and have monthly follow-up discussions on health and wellness.
Subjective cognitive decline-SCD is a subclinical cognitive impairment subjectively experienced without being detectable from a diagnostic and neuropsychological perspective. It can negatively impact on patient's frailty and quality of life and it may be prodromal to severe cognitive impairment. Currently, only a few screening tools focusing mainly on memory complaints exist. The aim of this study is to analyze if a new screening tool called MASCoD (Multidimensional Assessment of Subjective Cognitive Decline) can detect and monitor the SCD, predicting the risk of developing severe cognitive decline over time. Specifically, the investigators have the following aims: primary objectives: 1. To assess the construct validity and tune the clinical cutoffs of the new instrument through the correlation of MASCoD scores with neuropsychological evaluation and brain 18F-FDG-PET. 2. To assess the clinical validity (predictive capability) of the new instrument through a classification model (dependent variable: brain 18F-FDG-PET examination; independent variable: MASCoD; control variables: gender, age and neuropsychological evaluation). Secondary objective: To evaluate the suitability of MASCoD as tool for the monitoring of patients over time. Specifically, the investigators want to evaluate if the MASCoD score is able to assess the effects of a cognitive treatment and, in turn, to identify outpatients who most likely will benefit from it. After the multidimensional evaluation at T0, the participants will be randomly allocated into an experimental group and a wait list control group. Specifically, cognitive training will be offered by means of technological devices (Neurotablet). At T1, all outpatients (experimental group and wait list control group) will be evaluated through MASCoD and the extensive neuropsychological evaluation for the second time.
This study will test whether consuming blueberry powder 20g/d for 24 weeks can improve memory and other cognitive function and alter serum biomarkers of brain injury among older adults.
BRAIN-M is a randomized controlled trial designed to examine the effects of a single bout or 12 weeks of blood-flow restriction training or high-intensity resistance training on cognitive function, brain health, muscular properties and physical performance in healthy older men 60-75 years old.