View clinical trials related to Aging.
Filter by:The coexistence of obesity and sarcopenia results in sarcopenic obesity, a high-risk geriatric condition associated with metabolic perturbations and several co-morbidities. Despite the rising numbers of older adults diagnosed with sarcopenic obesity, few studies have characterized this condition on the muscle cell and systemic level. This study sought to comprehensively assess the influence of sarcopenic obesity on muscle and blood-related parameters and compare it to non-sarocopenic obese and non-sarcopenic lean older adults.
Over 50% of the Veterans enrolled for VA health care are over the age of 65. Dementia prevalence increases with age, and with the increase in the population of people ages 65 and older, the total number of people with dementia is also increasing. Older Veterans often have comorbid PTSD, major depression and traumatic brain injury so that they are at 2 to 5 times the risk for cognitive impairment and dementia compared to the general population. There is evidence that exercise interventions in sedentary older adults could improve both physical and cognitive function. However, there have been very few studies on the effects of exercise on cognition in older Veterans and do not reflect the broader ethnic and health-status diversity of Veterans. Thus, improved knowledge of the role of exercise on cognition as well as the predictive power of biomarkers could have a major beneficial impact on Veterans' functional independence and quality of life. The investigators hypothesize that participation in the VA Gerofit exercise program will improve cognitive function in older Veterans and that blood and muscle biomarkers will predict these improvements.
Background: Fall-related injuries like fractures are on the rise among older adults in New Brunswick. These injuries can lead to hospitalization and adverse health effects. Moreover, transitions from acute care can be complicated and overwhelming, especially for patients and their families. Researching patient navigators as a means of enhancing inpatient care, while also ensuring successful transitions in care for patients, may have positive impacts and help older adults successfully age in place. Objective: This study seeks to investigate the effects of having support from patient navigators in helping older adults admitted to the Orthopedic Unit with a fracture. Specifically, the objectives are to investigate whether there are differences between patients with patient navigators and those patients receiving standard of care, regarding: the length of stay in acute care; healthcare utilization post-discharge; patient and family experience and satisfaction with care; and, healthcare provider experiences working with patient navigators. Methods: This study uses a mixed-method concurrent embedded design, in which the quantitative randomized control trial has an embedded qualitative component. Potential Benefits/Risks: This study is considered low risk. Potential benefits of this study include a better understanding of the impact of support from a patient navigator on inpatient care and patient transitions. This information will be used to inform the development of practical recommendations for policymakers and clinicians on how to enhance inpatient acute care and successful transitions for older adults.
The goal of this observational study is to find differences in serum biomarkers between ovarian function and normal individuals.
The goal of this basic science clinical trial is to understand whether adipose tissue blood flow changes between younger and older healthy adults. The main question[s] it aims to answer are: - Is basal and nutrient responsive adipose tissue blood flow (ATBF) different between younger and older adults - What molecular and systemic signatures related to adipose tissue blood flow are altered between these two groups. Participants will undergo measurements of adipose tissue blood flow using the xenon washout technique, undergo 2 abdominal subcutaneous adipose tissue biopsies, and drink a sugary drink.
The use of non-medical cannabidiol (CBD) has been growing recently in France and in the world, in young but also older adults. Few data are available on the use of cannabidiol in older adults. A better knowledge of the use of cannabidiol in older adults, and of their own knowledges of the molecule, is necessary to guide and follow the CBD uptake in this population and avoid potential adverse events.
The retrospective cohort study will compare the prevalence of sarcopenia and associated factors between older patients who have undergone bariatric surgery and older patients with obesity without previous bariatric surgery.
The goal of this randomised, double-blinded, placebo-controlled trial is to investigate the immune, metabolic and cognitive effects of four weeks of daily ketone supplementation in adults aged 60 to 80 with stable health. The main objectives are to assess the effects of the intervention versus placebo on markers of metabolic health, inflammation, immune function, adipose tissue, and cognitive performance. Participants will undergo two weeks of baseline monitoring followed by a four-week supplementation period in which they will drink a ketone monoester drink or taste-matched placebo three times a day. During these periods, participants will record their diet and supplement intake and their physical activity and blood glucose will be monitored using wearable devices. At the beginning and end of the supplementation period, participants will undergo testing in the university physiology laboratories, involving blood, expired air and adipose tissue samples, as well as cognitive tests, physical tests and questionnaires.
The aim of this project will be to compare the acute effects of breaks from sedentary behavior using dual-tasking on cerebral blood flow, vascular function, cognitive functions and blood pressure in elderly people. Participants will perform, in random order, three experimental sessions (control, break with dual-task and standard break ([walk]). All sessions will have a period of 4 hours in sedentary behavior. In the standard break session and in the break session with dual-task participants will take walking and dual-task breaks every 30 minutes, and in the control session they will remain seated without breaks. Before and after this period, cerebral blood flow, vascular function, cognitive functions and blood pressure will be assessed.
This research proposes to investigate physiological and cognitive markers of locus coeruleus (LC) neuronal integrity and function in cognitively-healthy participants over 60 years old. The locus coeruleus is a brainstem nucleus, sole source of noradrenaline for the brain. Tau pathology appears in neurons of this nucleus, which may induce initial cognitive changes. The study aims at relating locus coeruleus markers, assessed with MRI and eye-tracking techniques, with cognitive function.