View clinical trials related to Aging.
Filter by:This study is to investigate the tolerability and safety of a ketone promoting ingredient, called a ketone ester (KE), in healthy older adults. This randomized, double-blind, placebo-controlled trial aims to characterize the tolerability and safety of daily consumption of the KE in healthy older adults (over 65 years old) over 12 weeks. Study participants will complete Beverage Tolerability Questionaires (BTQ) to rate any side side effects throughout the study. Safety will also be assessed by collection of blood and urine samples, vital signs, body weight, and monitoring of adverse events (AEs). The study will also collect pilot data to explore possible effects of KE on physical function, cognitive function and quality of life. The findings of this study will be used to facilitate future mechanistic studies of KE in aging.
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.
A growing body of research has highlighted the importance of frontal regions, at both the functional and structural levels, in age-related declines in attentional and cognitive processing. However, the underlying neurobiological pathophysiological changes in the brain that contribute to these declines are still largely unclear. The objective of this proposal is to investigate neural mechanisms of age-related attentional distractibility, focusing on the neural circuit initiated from the locus coeruleus (LC). In the current proposal, the investigators will test the hypothesis that the neural dysconnectivity of LC with the salience network (SN) drives failures of ignoring distractors in older adults. The investigators will examine how LC-SN connectivity is associated with selective attention performance, and how improved LC-SN connectivity through a cognitive training program may lead to improved attentional performance.
The incidence of age-related diseases, such as cancer and cardiovascular diseases, rapidly rises. These days, age-related diseases cause the majority of all healthcare expenses. During ageing senescent cells secrete a range of harmful inflammatory signals, which leads to chronic inflammation (inflamm-aging) and accelerates aging throughout the rest of the body. Interestingly, people who regularly exercise show less signs of inflamm-aging compared to people with a sedentary lifestyle. Molecules secreted by skeletal muscles, called myokines, may play an important role. However, the underlying molecular mechanisms remain unknown. This pilot study aims to investigate if an acute bout of resistance training is an appropriate tool to induce an increase in the release of muscle derived myokines in aged persons.
From a public health point of view, personalized nutritional recommendations, at the individual level, are difficult to achieve in the short-medium term, especially in population segments with less purchasing power. Therefore, a more realistic vision in the short term and with a more favourable cost/effectiveness ratio consists of carrying out dietary advice at the group level through the identification of metabotypes, which can be defined as groups of individuals with similar metabolic profiles. The application of tailored precision nutrition aimed at the elderly is detected as a strategy to understand the different alterations associated to aging and to design innovative nutritional interventions that address this physiological process, favouring a healthy ageing.
- The investigators wanted to find out if digital music and movement resources could be delivered in care homes. They rolled out a 12-week programme to 10 care homes and had 47 care home residents participate in the research. - The investigators also wanted to find out under what circumstances the digital music and movement resources would be most effective for the health and wellbeing of the care home residents. - A survey measuring the number of falls in the past three months, activities of daily living and health, psychosocial wellbeing (anxiety, depression, stress and loneliness), sleep satisfaction and frailty measures such as appetite and weight loss) was completed before and after the intervention. Also, interviews with residents and focus groups with staff were done after the intervention to find out how they felt about the programme.
Older adults who use cochlear implants to address hearing loss show wide variation in benefit. This research investigates the role of normal aging, the health of peripheral and central auditory pathways, and positioning of the cochlear implant electrode array in contributing to this variability. A range of input types from simple auditory signals to spoken sentences is used to examine these questions.
Background: By 2030, 23% of Canadians will be over 65 years of age. Two in five of these individuals will be diagnosed with cancer. Older adults have high levels of functional decline, and a cancer diagnosis adds prolonged physical sequelae to the natural aging process. Many of these effects can be mitigated by regular exercise. However, older adult cancer survivors are significantly less likely to meet current exercise guidelines than their younger counterparts. As our population ages, we need to develop effective, scalable interventions that support health in older adult cancer survivors. The objective of this study is to determine the feasibility and preliminary effectiveness of a virtually delivered peer exercise intervention with qualified exercise professional (QEP) support for older adult cancer survivors. Methods: Participants will include older adult cancer survivors who are cleared for exercise, have consistent access to the internet, and currently take part in less than 150 minutes of exercise per week. All participants will be matched with a partner, given a peer support guide, and information on current exercise guidelines. In addition to being matched with a peer, dyads in the intervention group will have weekly virtual sessions with a QEP for 10 weeks. Participants in the control group will independently support their partner around exercise for 10 weeks. Outcomes: Participants will be assessed at 3 time points. The primary outcome is feasibility. This will be measured by assessing recruitment, retention, adherence rates to the intervention, and participant acceptability and satisfaction. Secondary effectiveness outcomes include exercise volume, social support, quality of life, physical function, and physical activity enjoyment. Impact: If effective, this will be the first virtual peer-based exercise intervention for older adult cancer survivors. Findings will inform future methods aimed at increasing exercise in older adults.
The purpose of this study is to conduct a five-arm pilot and feasibility trial in healthy, young individuals without obesity to evaluate the feasibility and efficacy of dietary intervention approaches to slow mechanisms of aging.
Our sense of touch is essential to explore our environment and experience life and is based on signals from receptors in the body that are sensitive to different types of stimulation. The TACTHUM projects aims to investigate the fundamental firing of mechanoreceptors in the body to various external stimuli, with an end-aim to better understand the human somatosensory system and to apply this knowledge to provide comprehensive sensory feedback in prosthetics. We have a vast system of peripheral receptors in the skin and muscles that provide us with exquisitely detailed information about our everyday interactions. When there is injury to a body part, such as in amputation, there is a significant loss of somatosensory input. Prosthetic devices have greatly developmed in the past few years, especially with the introduction of useful sensory feedback. However, there is a lot to discover both about the workings of the somatosensory system and how to recreate this to give feedback in a prosthetic device. The main objective of the TACTHUM project is to understand how to recover and apply useful somatosensory feedback in prostheses for amputees. There are a number of other sub-objectives, to: 1. Determine how tactile mechanoreceptors encode the texture of natural surfaces during passive and active exploration. 2. Investigate how our sense of touch varies with emotional state. 3. Explore what happens to our sense of touch when we explore surfaces at different temperatures. 4. Understand the origin of our perception of humidity. 5. Investigate differences in the encoding of tactile information with age. 6. Determine the perceptions generated by the stimulation of single tactile afferents. 7. Study changes in spontaneous activity and responses to tactile stimulation on the residual limb of amputees. To accomplish these objectives, we will primarily use the technique of microneurography, in vivo recordings from peripheral nerves, to gain direct information about the firing of peripheral neurons in humans. In conjunction with this, we will use a variety of mechanical and thermal stimuli to excite somatosensory fibers and register the activity of other physiological and perceptual measures. This will allow us to gain a fuller understanding of how the incoming somatosensory signals are interpreted and processed. Overall, we aim to explore how more naturalistic tactile interactions are encoded and how these can be translated to provide realistic prosthetic feedback.