There are about 2320 clinical studies being (or have been) conducted in Chile. The country of the clinical trial is determined by the location of where the clinical research is being studied. Most studies are often held in multiple locations & countries.
Falls are unplanned events resulting in contact with a lower surface. They are common in older adults, affecting one in three individuals over 65 years old. They have serious consequences, ranging from physical injuries (fractures, traumatic brain injury) to psychological repercussions. Physical training focused on muscle strength, balance, and gait has consistently been shown to prevent falls. However, there are significant challenges in its implementation, such as the need for trained personnel and long intervention times, which are associated with high costs. Therefore, developing strategies to improve the efficiency of physical training programs in older adults is mandatory. The reduced response to physical training in older adults compared to younger individuals is a well-documented phenomenon, reflecting physiological changes associated with aging. Nicotinamide adenine dinucleotide (NAD+) is an essential coenzyme for cells, mediating energy metabolism and participating in crucial processes such as DNA repair, mitochondrial function, and cell death. As we age, NAD+ levels decrease in various tissues (including the brain and muscle), contributing to the development of aging phenotypes and associated pathologies. Preclinical evidence suggests that increasing NAD+ levels reduces the appearance of aging phenotypes. During physical activity, cellular metabolic pathways that increase the demand for NAD+ to support energy production in mitochondria are activated. This increase in demand is associated with the upregulation of key enzymes involved in NAD+ degradation promoted by exercise. Considering the decrease in cellular levels of this coenzyme associated with aging, it can be hypothesized that NAD+ deficiency may play a significant role in the reduced response of older adults to training programs. Nicotinamide, a water-soluble form of vitamin B3 currently considered a nutritional supplement, is a fundamental precursor for NAD+ synthesis, capable of raising cellular levels of it. It has already been used in clinical practice in the treatment of certain endocrinological and dermatological conditions. This study aims to determine through a randomized clinical trial whether nicotinamide supplementation improves physical performance in older adults at risk of falls undergoing a physical training program.
Breast cancer (BC) is the most common neoplasia. Frequent for women and half of the new cases occur in people over 65 years of age. The treatment of BC generates adverse effects that deteriorate the physical functionality, muscle strength and quality of life of the survivors. This is more noticeable in elderly BC survivors. Physical exercise improves some adverse effects of BC, but few studies have focused on physical functionality, especially in older people. The elderly population reports the lowest adherence and lower level of physical activity. It is relevant to explore innovative and specific proposals for physical exercise for elderly survivors of BC. One solution may be virtual reality game-based exercise, which has been shown in healthy older people to significantly improve physical functionality and adherence compared to traditional physical exercise. The objective of our study is to estimate the feasibility and effect of a virtual reality-based exercise program on the functionality, muscle strength, and quality of life of older BC survivors, compared to a group undergoing traditional physical exercise.
The purpose of this study is to evaluate the safety and effectiveness of the Extended Magnetic Grasper Device in patients undergoing bariatric and/or hiatal hernia procedures, as a liver retractor grasping the liver and/or the tissue surrounding the crus of the diaphragm.
The study aim to evaluate safety of exosomes (sEVs) from allogeneic mesenchymal stromal cells delivered by an intra-articular injection in the knee of patients with mild to moderate symptomatic osteoarthritis. The sEVs will be produced in a GMP-facility. The investigators expect to enroll 12 patients in this phase 1 trial open label dose-escalation pilot and the follow-up will be up to 12 months.
To analyze the possible benefit of damage control surgery by performing bowel resection, open abdomen, and delayed anastomosis in the treatment of Hinchey III or IV diverticulitis.
The prevalence of age-related chronic diseases (like obesity, type 2 diabetes and cardiovascular diseases) is mounting worldwide, reaching pandemic proportions. These age-related chronic diseases are associated with diminished skeletal muscle mitochondrial function in humans. Nicotinamide adenosine dinucleotide (NAD) is a coenzyme that regulates mitochondrial function, therefore, plays an important role in energy metabolism. Importantly, it has been shown that high cellular NAD+ levels as well as a high NAD+/NADH ratio promote metabolic and mitochondrial health. In contrast, NAD+ bioavailability declines upon aging in humans as well as in animal models of metabolic disorders and type 2 diabetes. These findings fuel the notion of boosting the NAD+ bioavailability in order to improve metabolic disturbances and mitochondrial dysfunction in aged individuals. Supplementation with nicotinamide riboside (NR), a naturally occurring form of vitamin B3, boosts cellular NAD+ levels. However, in contrast to animal studies, NR supplementation in humans has so far been unsuccessful in improving skeletal muscle mitochondrial function, exercise capacity or insulin sensitivity. Interestingly, Recently, it has been suggested that metabolic conditions where NAD+ levels become limited, is needed for NR supplementation to exert beneficial health effects. This metabolic condition could be achieved by exercise. However, studies combining NR and exercise are lacking, and that is why we will perform the present study.
Mental health disorders are one of the leading causes of illness globally, and their relevance is expected to increase. Low and Middle Income Countries (LMIC), already facing psychological and behavioral issues due to chronic adversity, were further impacted during the COVID-19 pandemic. A study showed that symptoms of depression and anxiety in youth doubled during the first year of the pandemic compared to the pre-pandemic period. A study in China found that the prevalence of the total difficulties was (8.2%), with conduct problems (7.0%), peer problems (6.6%), and hyperactivity-inattention (6.3%) among the most prevalent. In this study emotional problems reached 4.7%. Finally, recent evidence has revealed that students' psychosocial and behavioral problems have increased in the early stage of schools reopened. Several international agencies have calls on governments, and public and private sector partners, to commit, communicate and act to promote mental health for all children, protect those in need of help, and care for the most vulnerable. The importance of psychosocial skills acquired in early childhood, such as emotional regulation and social problem-solving, for preventing mental disorders was highlighted. Studies indicate that the development of executive functions and non-cognitive skills in early childhood has a positive impact on long-term health and economic productivity. However, the treatment gap for mental disorders in LMIC is significant, with only one in ten affected receiving treatment. Preventive interventions are needed, particularly in early childhood, to improve cognitive and socio-emotional skills. Objective: The research proposal aims to develop a gaming platform aiming to improve cognitive and non-cognitive skills in early childhood at schools with high socio-economic vulnerability, supported by Early Years Educators and Parents using a dashboard integrated in a whole system housed in local server, and to evaluate the acceptability and feasibility of this gaming platform and dashboards, with the ultimate goal of reducing behavioral problems, and improving functional and performance outcomes later in life. Outcomes: Acceptability; Feasibility; Cognitive and non-cognitive skills; Working Memory; Inhibitory control; Emotion recognition; Social competence; Behavioral problems and psychological assessment.
in healthy patients undergoing elective surgery, after a very slow induction, using Eleveld's kinetics as a reference, after loss of consciousness (LOC) and intubation, proceed to infuse propofol until 1% burst suppression ratio is obtained. Then return to the LOC concentration. The BISindex predicted by the model and the real one will be evaluated. The evolution of spectral density frequencies over time will also be evaluated.
This clinical trial is recruiting people who either are at risk of AD - have build-up of beta-amyloid, but have no clinical symptoms, or with a diagnosis of mild cognitive impairment. People can take part if they have a certain level of plaques (beta-amyloid) in the brain, shown by a positron emission tomography (PET) scan, a medical imaging technique in which tracers are injected to visualize specific pathological processes in the brain. People who take part in this clinical trial (participants) will be given RO7269162 OR placebo for up to about 1 and a half years. The clinical trial team will see them every 3 weeks in the first 3 months and then every 6 weeks until the end of the trial. These hospital visits will include checks to see how the participant responds to the treatment and any side effects they may have. The total time of participation in the clinical trial will be 90 weeks.
This study aims to determine the acute effects of high and low-intensity strength training on cardiac autonomic control in hypertensive subjects