Active clinical trials for "Cognitive Dysfunction"

In the current study, we will examine how daily paced breathing affects plasma amyloid beta levels and the rate of learning in older adults. Healthy adults aged 50-70 who meet all eligibility criteria will be invited to this study. Participants will be randomly assigned to one of the two conditions: 1) Daily memory and attention training followed by a paced breathing protocol designed to increase relaxation or 2) Daily memory and attention training followed by a paced breathing protocol to increase alertness. Participants will be asked to complete pre and post intervention cognitive testing online, engage in 10 weeks of daily brain training (starting Week 2) and 9 weeks of paced breathing (starting Week 3) at home. They will also be asked to come in for lab visits on Weeks 2, 7 and 12 to provide blood and urine samples to assess amyloid beta levels and to complete magnetic resonance imaging scans to assess perivascular space volume.

The present longitudinal study aims to investigate the impact of lurasidone treatment in recent-onset psychosis patients. The effects of lurasidone will be studied primarily in terms of structural and myelin modifications, in relation to clinical outcomes, before and after treatment and in healthy controls. Furthermore, neuropsychological tests will be used to evaluate changes in cognitive performance.

Twenty-five participants with PD utilizing the Medtronic Percept PC DBS system will be enrolled for this project and complete a single bout of both FE and VE. The 150-minute experimental session will be completed in the OFF antiparkinsonian and Off-DBS state.

The goal of this pilot randomized controlled trial is to explore the feasibility of e-health enhanced motor-cognitive interventions for discharged community-dwelling older adults with cognitive frailty in the emergency department and to evaluate the effectiveness of the interventions on (1) cognitive functions, (2) physical functions and (3) frailty status. Participants in the intervention group will receive three-90-minute weekly physical and cognitive training for 12 weeks, facilitated with persuasive technology on smartphones, in addition to the usual care. The control group will receive the usual care. Researchers will explore the feasibility and compare the changes of outcomes between two groups.

The goal of this clinical trial is to evaluate a program for adults who live alone and have some cognitive impairment (CI) to see if it is useful and acceptable. This program aims to help older adults with cognitive impairment who live alone to be engaged and active, as well as safe at home. The investigators want to see how useful this program is and how it can be improved. The specific aims are: Specific Aim 1: Develop and Adapt Home Alone to Prepare for Pilot Testing. Specific Aim 2: Pilot Test a Revised Version of Home Alone. Phase I participants will be asked to: Participate for 3 months Complete 3 surveys Complete 7 1-hour meetings on a weekly basis with a coach Complete a final interview Phase II participants will be asked to: Participate for 6 months Complete 3 surveys Complete 7 1-hour meetings on a weekly basis with a coach A sub-sample will be asked to complete a final interview

Cognitive impairment related to dementia is frequently under-diagnosed in primary care settings. This problem is more prevalent in health disparities populations. The investigators developed the 5-Cog brief cognitive assessment that is simple to use, standardized, takes <5 minutes, does not require informants, and accounts for major technical, cultural, and logistical barriers of current assessments. The investigators propose a hybrid Type 1 effectiveness-implementation design in real-world settings to adapt and test the effectiveness of the 5-Cog paradigm to increase detection of cognitive impairment care in older adults presenting with cognitive concerns. The study aim is to evaluate, using a pragmatic cluster-randomized trial design, the effectiveness of the 5-Cog paradigm to increase 'incident cognitive impairment' detection (new MCI and dementia diagnoses) relative to enhanced usual care in 6,600 older patients presenting with cognitive concerns in 22 primary care clinics in Bronx and Indiana. As diagnosis without action will not improve patient care, 'improved dementia care' will be examined as a secondary outcome. Results will also be examined in NIH designated health disparity populations including underserved minority and socio-economically challenged populations.

To test a new investigational virtual exercise program for adolescents and young adults (AYAs) with brain tumors who plan to receive cranial radiotherapy

The goal of this clinical trial is to learn about the effect of urolithin A, a dietary supplement, on blood flow in middle-aged adults with obesity. The main question it aims to answer is: - Does urolithin A supplementation improve blood flow in large and small blood vessels in middle-aged adults with obesity? Participants will be asked to: Take the dietary supplement daily for 4 weeks Attend two study visits to have their blood vessels checked, answer questionnaires, and give a sample of blood Researchers will compare people who took the dietary supplement with others who took a placebo to see if the blood flow in the blood vessels improved.

The purpose of this clinical trial is to investigate the feasibility and efficacy of non-invasive transcranial alternating current stimulation (tACS) at gamma frequency in enhancing memory recall and modulating sleep network dynamics measured by at-home electroencephalography (EEG) in healthy elderly people. Eligible participants will first collect sleep EEG at home for one night to acclimate to the data collection during sleep. Participants are then randomized into first undergoing either tACS at gamma band frequencies (i.e. 40Hz) or tACS at a control frequency (i.e. 21Hz). Stimulation is administered in the lab during a cognitive testing battery that includes memorizing items. After a night of sleep with EEG at home, participants return to the lab the following day to measure memory recall. Recall is performed again after five days. This sequence of encoding during stimulation in the lab, sleep EEG at home for one night, and recall is then repeated for the other stimulation condition about a week later. Participants are wearing an actigraphy wristband throughout the study period.

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.