View clinical trials related to Aging.
Filter by:Scalp to cortex distance (SCD), as a key technological parameter of brain stimulation, has been highlighted in the guidelines of non-invasive brain stimulation. However, in the context of age-related brain changes, the region-specific SCD and its impact on stimulation-induced electric field in different types of neurodegenerative diseases remain unclear.
Randomised clinical trial involving 58 independent subjects of both sexes who attended the Geriatric Revitalisation Programme run jointly by the University of Salamanca and the Salamanca City Council. At the beginning and at the end of the programme, data were collected on participants' balance, fall risk and other parameters, using anthropometric tests (weight, % body fat and body mass index (BMI)), and physical performance tests (grip strength, the Short Physical Performance Battery, TUG and the stair step test). Study participants performed three 50-minute sessions per week for a total of 35 weeks. The components of balance, gait, cardiovascular resistance, stability, upper and lower limb strength, flexibility and breathing exercises were worked on. In the OC group, the physiotherapist performed the entire session together with the participants, while in the other group, the physiotherapist simply ordered the exercises.
The goal of this trial is to assess in healthy subjects between 60 and 70 years the effect of glycemic and glycoxidative postprandial responses and platelet aggregation after intake of bread supplemented with Chilean beans flour when compared with a non supplemented control. The main questions to answer are: - It is possible to decrease postprandial glycemic and glycoxidative responses by means of the intake of bread supplemented with Chilean beans flour when compared to the intake of a control bread non supplemented in healthy elderly persons? - How is affected the platelet aggregation process during postprandial state after intake of bread supplemented with Chilean beans flour, when compared to the intake of a control bread non supplemented in healthy elderly persons? Participants will: - Be characterized by means of: 1) evaluation of body composition, using anthropometric techniques, bioimpedance and 2) biochemical analyses: biochemical profile, lipid profile, serum ferritin, fasting glycemia, HbA1c and insulin. - Arrive at fast to the laboratory and eat randomly control bread, 30% Chilean beans supplemented bread or glucose. Venous blood samples will be taken from the cubital fossa of the dominant arm at: 0, 30, 60 and 120 min postprandial, only after intake of bread control and supplemented bread. In addition, capillary blood will be taken at 0, 15, 30, 60, 90 and 120 min postprandial after intake of glucose, bread control or supplemented bread.
Alzheimer's disease and related dementias (ADRD), including mild cognitive impairment (MCI), are becoming among the most prevalent causes of disability, death and healthcare costs worldwide. Sleep and circadian rhythm disturbances are common among individuals with MCI as well as their spouses/ partners and may increase risk of the development of ADRD in both patients and partners. This is the first study to systematically investigate sleep as a shared health behavior within couples in which one member has MCI, and the degree to which sleep and circadian disturbances impact both partners health and well-being, including cognitive decline and risk for ADRD.
Sarcopenia (SAR) is the loss of strength and muscle mass caused by aging. It is accompanied by a progressive loss of physical and cognitive abilities, increasing the risk of falls. This loss of muscle mass leads to pathophysiological changes at the neuromuscular and tendon level as a consequence of, among others, alterations in the protein synthesis/degradation balance, inflammation (INF), or alterations in the anabolic/catabolic state (EAC). These alterations are caused by oxidative stress (OS), when reactive O2 species, toxic metabolites produced by cells using O2, exceed the defense capacity of the antioxidant mechanism. Therapeutic strategies to modulate SAR are based on exercise and nutrition programs. Multicomponent physical exercise program has shown improvements in sarcopenia-related parameters. Likewise, the use of nutritional supplements such as creatine (CRE) has shown improvements in muscle function in the elderly. CRE could reduce INF and EO in the general population. Guanidinoacetate (GAA, also known as guanidinoacetate acid or glucosamine) is a naturally occurring creatine precursor with advanced transportability and an innovative dietary supplement that may increase the rate of creatine turnover. The CRE-GAA mixture outperforms creatine in increasing brain and muscle performance in adult men and women, but whether this mixture improves muscle function and quality in people with sarcopenia has not been addressed so far. Similarly, whether this mixture may promote oxidative stress and inflammation in adults with sarcopenia has not been studied. Similarly, beta-hydroxy-beta-methylbutyrate (HMB) also appears to improve muscle function in older people by enhancing myogenesis. However, the effects of these supplements on the elderly have only been shown to be seen when used in isolation. In this regard, our research team observed that a 10-week combination of 3 g/day of CRE+3 g/day of HMB (CRE-HMB) improved muscle recovery (better EAC) and physical performance in athletes exposed to heavy muscle wasting. However, not aware that it has been addressed whether this mixture improves muscle function, EO, INF, and EAC in women with SAR. Therefore, the hypothesize would be that the CRE-HMB combination could improve muscle function and physical performance, as well as OE, INF, and EAC in people with high muscle wasting such as those with SAR. Therefore, a randomized double-blind study is proposed to analyze the effect of 12 weeks of co-supplementation of 3 g/day of CRE + 3 g/day of HMB (CRE-HMB) and 3 g/day of CRE and 3 g/day of GAA (CRE-GAA) with 3 sessions/week of multicomponent physical exercise on muscle function, EO, INF, and EAC in 81 women with SAR over 70 years of age. These 81 women will be divided into 3 groups of 27 (27 placebo group, 27 CRE-HMB group, and 27 CRE-GAA group). At the control points (at baseline and after 12 weeks) participants will have their body composition, nutritional intake, strength, and performance tests analyzed. Blood will also be drawn to determine biochemical values of EO, INF, and EAC. The expected results are that co-supplementation with CRE-HMB and CRE-GAA for 12 weeks together with multicomponent physical exercise in individuals diagnosed with SAR will improve muscle strength, muscle quantity, and performance. In addition, improved EO, INF, and EAC levels are expected.
The objective of RAP PAC is to identify safe and effective weekly dose(s) for the mTOR inhibitors sirolimus and everolimus that intervene on the underlying fundamental biology of aging. Participants who are 55-89 years old that are free of overt chronic diseases will be assigned to either 6 weeks of sirolimus or everolimus (5 mg, 10 mg, or 15 mg once per week). The investigators will complete the everolimus arm first and then subsequently complete the sirolimus arm of the study. Total time on study would be up to 17 weeks to complete baseline and follow up visits.
Aging is commonly associated with reduced functionality of the immune system, resulting in a higher prevalence of infectious disease, auto-immune disease, cancer, and lower efficiency of vaccination. Nutritional strategies are increasingly recognized as a method to improve immune functionality, as several nutrients are shown to exert immunomodulatory properties. However, the large variation between individuals with regard to immune responses asks for more personalized approaches. Therefore, this field of research would benefit from a selection of those individuals with immune dysfunction. It is recently shown that immune functionality is largely dependent on intracellular metabolism, leading to the introduction of the new term 'immune cell fitness' which combines the metabolic and functional status of an immune cell. Within this study, we will determine the immune cell fitness of monocytes from healthy young adults and elderly subjects by measuring and integrating a broad range of metabolic and functional immune parameters into an immune cell fitness score. We aim to identify those individuals with immune dysfunction, the unfit. Furthermore, to identify potential nutritional strategies to improve immune cell fitness, we will study the effects of metabolites and nutrients on the immune cell fitness status of monocytes from elderly subjects.
This randomized, cross-over, pilot study aims to compare preliminary impact of a standard dose of blueberry powder (24 g) vs a higher dose (48 g) on the bioavailability of flavonoids and inflammatory biomarkers in older adults with minor levels of depressive symptoms.
Evalution of the safety and tolerability of the oral administration of Salvia haenkei in a healthy population.
The goal of this interventional study is to learn about the role of mitochondrial function in healthy aging, and then go on and assess the role of a home-based exercise program on the changes seen. The main question[s] it aims to answer are: - What alterations in skeletal muscle mitochondrial function are seen in healthy aging? - Can a short-term exercise program alter these alterations seen? The older participants will be invited to take part in a home-based 4 week exercise intervention involving either: - High intensity interval training - Resistance based training (resistance bands will be provided) Researchers will compare the two exercise groups to see if it alters mitochondrial function.