View clinical trials related to Aging.
Filter by:The purpose of this study is to test the feasibility of interventions to accelerate recovery of muscle mass and function in older adults following acute hospitalization.
The purpose of this study is to determine whether people with Parkinson's disease (PD) experience reduced perception of respiratory resistive loads versus healthy adults in the same age group. Further, the study will determine whether people with PD and trouble swallowing experience even more reduction of their perception of a respiratory resistive load.
This study will determine whether brain activity can be modified and improves performance on a task by showing participants live 'video feed' of their brains on advanced imaging technology. The study is particularly interested in brain regions that have been shown to be relevant for emotions, specifically the anterior insula and the medial prefrontal cortex. Advanced technology will map the brain using magnetic pulses with a real-time functional Magnetic Resonance Imaging (rt-fMRI) machine.
The purpose of this study is to identify the prevalence and the characterization of health of elderly fallers and non-fallers in the southeastern community of Brazil in the state of São Paulo.
The overall objectives of the proposed study are to examine the consequences of chronic circadian disruption and chronic sleep restriction on metabolic function in healthy adults.
This study will look at whether or not participating in a physical activity intervention during chemotherapy for breast cancer can prevent a marker of aging called p16 from having a large increase after chemotherapy.
Aging in human physically refers to a multidimensional process that all the changes were accumulated in a person over time. These aging changes are responsible for the progressive increases in the chance of disease and death associated with them. So far, there are several theories have been developed to understand the aging process, such as cross-linking, which is led by Maillard Reactions. Maillard Reaction is a complex series of reactions between reducing sugar/aldehydes and amino groups on proteins. Under physiological conditions, aldehydes are products of various exogenous and endogenous amines catalyzed by semicarbazide-sensitive amine oxidase (SSAO), a family of heterogeneous enzyme. It was reported that SSAO shows a significant higher catalytic activity, producing more aldehydes in age-related diseases. However, SSAO is not a perfect candidate to be monitored for evaluating aging, because it is widely distributed in tissues, which are not readily accessible sample-sources for clinical applications. In this work, the investigators have found 6 biomarker candidates by developing a standard-free, label-free MS-based proteomics method based on standard protein (human serum albumin, the highest abundance protein in human plasma) model in vitro. Then, the investigators wanted to verify these biomarker candidates by clinical plasma samples to see if there is significant quantitative difference among people with different ages.
Hypothesis;Aging modifies the risk of pulmonary dysfunction in HIV+ individuals. The study is a multicenter, prospective observational study of aging and pulmonary function in HIV. The investigator will determine the prevalence and risk factors for lung dysfunction as quantified by pulmonary function testing in both younger (<50 years) and older (≥50 years) HIV+ and HIV-uninfected controls. The investigator will build on existing cohorts and enrich enrollment for individuals over the age of 50 while adjusting for important co-variates such as ART, smoking history, co-infections, and illicit drug use. Evaluations will be scheduled at baseline, 18 months, and 36 months. Study visits will consist of blood draw, questionnaires, and pulmonary function testing.
Endothelial function of the skeletal muscle vasculature declines with advancing age. Although aerobic exercise training is commonly prescribed to combat loss of endothelial function in the elderly, the rate of compliance to training programs is low. Contrary to aerobic exercise training, stretching exercise is widely performed in elderly patients to increase muscle flexibility and to prevent muscle atrophy induced by immobilization. However, it remains unknown as to whether regular stretching of the calf muscles using ankle dorsiflexion splinting improves muscle blood flow. The purpose of the proposed work is to test the hypothesis that performance of ankle dorsiflexion splinting improves endothelial function and lower leg muscle blood flow in older adults. Ankle dorsiflexion splinting will be performed on the randomized leg for 30 minutes, 5 times per week for 4 weeks. Leg vascular measures will be performed on the splinted and non-splinted legs prior to and at the end of the 4-week intervention.
Healthy volunteers will be recruited to participate in a ten-week double-blinded crossover trial. The trial will consist of two, three-week periods of intermittent fasting, where subjects receive either antioxidant supplementation or placebo, the ordering of which will be randomly determined. A one-week preconditioning will precede each invention period, and a two week "wash-out" period will follow the first intervention period. Serum-based assays will be performed to assess levels of reactive oxidant species, antioxidant genes, sirtuins, and markers of mitochondrial biogenesis and aging. The investigators hypothesize that an intermittent fasting diet in healthy young volunteers will improve these markers of cellular aging and that these beneficial effects will be abrogated by the supplementation of antioxidants. This study is a proof-of-principle study that will shed light on the mechanism and effects of IF as an anti-aging dietary intervention in the absence of weight loss. It will inform the design of dietary interventions that are both effective in improving markers of aging and feasible for patients to practice on a long-term basis.