View clinical trials related to Gut Microbiota.
Filter by:Impaired respiratory function may occur after brain injury, and will progress to restricted respiratory dysfunction without early intervention. At present, there is a lack of effective treatment options for respiratory dysfunction. Repetitive Transcranial Magnetic Stimulation(rTMS) is a non-invasive, painless and non-invasive neuroregulatory technique. In healthy people, rTMS applied to the respiratory motor cortex induces a contralateral respiratory muscle response. However, whether rTMS can improve respiratory function in patients with brain injury remains unclear. gut microbiota can affect muscle function and mass, and animal experiments have shown that probiotics can increase skeletal muscle mass and grip strength in mice. On the other hand, studies have found that rTMS can improve the nutritional status of patients with vegetative state by regulating the structure of gut microbiota. However, it remains unclear whether rTMS can improve respiratory muscle function in patients with brain injury by regulating gut microbiota. Therefore, the investigators intend to apply rTMS to the respiratory motor cortex to observe whether rTMS can improve respiratory function and reduce the incidence of pneumonia in patients with brain injury, and to observe the role of gut microbiota in this process.
This study aims to explore the gut microbiota patterns in patients newly diagnosed with hypertension, comparing them to those in non-hypertensive individuals. Utilizing cross-sectional analysis, it seeks to identify specific microbial profiles associated with hypertension, which could provide insights into the disease's pathogenesis and potential new avenues for treatment. The research focuses on analyzing fecal samples collected from both groups, using advanced genomic techniques to assess the diversity and abundance of gut bacteria. This investigation could contribute significantly to our understanding of the role gut microbiota plays in cardiovascular health and disease.
Studies indicate that the intestinal microbiota could have an implication in Alzheimer's disease; recently, a positive relationship has been established between levels of bacterial lipopolysaccharide (LPS) and cerebral amyloidosis and a negative relationship between the production of the chain fatty acid cuts butyrate by the intestinal microbiota and cerebral amyloidosis. Currently there is no effective treatment for Alzheimer's, but studies indicate that a healthy diet such as the Mediterranean diet and physical exercise delay the symptoms of this disease. For all these reasons, it is postulated that introducing changes in the intestinal microbiota through diet may be a new treatment or serve as an adjuvant treatment for Alzheimer's disease.
Microbes and the human body maintain a complex relationship of interaction and influence. Different regions, altitudes, and dietary habits have different degrees of influence on the composition of children's intestinal flora. Therefore, the development and maturation process of children's intestinal flora in plateau areas was discovered, and its relationship with children's immunity, metabolism, and growth was understood. The mechanism of action of children's intestinal flora on immunity, growth and development was further analyzed by comparing it with people in low-altitude areas, to provide a scientific basis for improving children's health in plateau areas.
Individuals of Chinese heritage are the largest and fastest growing segment of the US Asian population. US Chinese have sociodemographic characteristics and culture that differ substantially from other US Asians, and therefore, differ in social determinants of health, health status, and disease risk. US Chinese adults are at increased risk for cardiometabolic disease, related conditions (obesity, type 2 diabetes mellitus, hypertension), and systemic inflammation that promotes disease onset and progression. Immigration to a new country can substantially impact the gut microbiome which may promote systemic inflammation. Pilot interventions indicate a high-fiber diet rich in whole grains reduced inflammation and improved obesity. Additionally, the United States Department of Agriculture (USDA) supported, evidence-based HomeStyles intervention has demonstrated feasibility, acceptability, and efficacy in improving lifestyle behaviors and home environments associated with obesity risk in families. A lack of linguistically, culturally tailored interventions to their specific health needs makes it difficult for US Chinese to implement healthy lifestyle behaviors and reduce health risks. Interventions tailored for US Chinese that could attenuate modifiable cardiometabolic risk factors, understand physiological sequelae, and bridge health equity are not currently available. Thus, the overall goal of this project is to test the efficacy of HomeStyles in improving health outcomes in US Chinese. Project aims are to: A) Culturally adapt the HomeStyles intervention through community-engaged approaches. B) Conduct a 10-week, 2-armed Randomized Controlled Trial (RCT) to test HomeStyles intervention efficacy on health outcomes (dietary intake, physical activity, self-efficacy, HbA1C, waist circumference, and BMI), hypothesizing that participants randomized to the treatment condition will have greater improvements in health outcomes than control comparators. C) Examine associations between intervention participation and gut microbiota/systemic inflammation and test hypotheses that a whole-grain rich diet adopted by those in the intervention group will increase anti-inflammatory gut bacteria, reduce inflammatory gut bacteria, and lower systemic inflammation.
The Scottish Bowel Screening Programme is an enormous potential research resource; half a million people in Scotland do their bowel screening test each year. If we could obtain meaningful data on the gut microbiota in these individuals, many clinical questions could be answered using nested case-control studies relating gut microbiota profiles to cancer, obesity, cardiovascular and metabolic diseases and Alzheimer's disease. As individuals are screened from age 50 to 74 years, there would also be excellent opportunities for longer-term longitudinal studies. Since 2017, the bowel screening programme has used qFIT testing for faecal haemoglobin. Patients collect a tiny (2 miligram) sample of their faeces into 2 mililiter of buffer but only approximately 6 microliter is required for testing. The goal of this study is to investigate whether the large number of patients' samples available from the National Bowel Screening Programme could be used in future gut microbiome studies using the leftover faeces in buffer in the qFIT tests.
Recently, it has been proposed that the consumption of non-nutritive sweeteners, including sucralose, it's not harmless and is related with metabolic effects. Some studies have reported that sucralose produces alterations in glucose homeostasis. In vitro studies indicate that sucralose can interact with sweet taste receptors (T1R2 and T1R3) in the intestine, thus increasing the expression of glucose transporters including the sodium-glucose cotransporter type 1 (SGLT1) and the glucose transporter 2 (GLUT2), increasing glucose absorption. This interaction with intestinal sweet taste receptors also generates an increase in the secretion of the incretins glucagon-like peptide type 1 (GLP-1) and the glucose-dependent insulinotropic polypeptide (GIP), which might enhance the postprandial insulin release. However, these results are preliminary and it's desirable to confirm if sucralose consumption is associated with glucose metabolism modifications using an appropriate methodological design and with gold standard methods. The aim of this triple-blind, placebo-controlled, parallel, randomized clinical trial is to confirm the changes in insulin sensitivity associated with sucralose consumption in humans, to identify whether these changes are in the liver or skeletal muscle and to investigate the pathophysiological mechanisms generating these changes. Specifically, we will investigate if sucralose generates a dysbiosis in the gut microbiota that could be related to insulin resistance by increasing concentrations of lipopolysaccharide, a toxin found in Gram-negative bacteria that triggers a low-grade inflammation known as metabolic endotoxemia. In addition, the changes in postprandial concentrations of GLP-1, glucose, insulin, and C-peptide due to the combination of sucralose with a mixed meal will be investigated. The results of this study will determine if sucralose consumption, frequently used as a non-nutritive sweetener, is associated to significant changes in glucose homeostasis in humans.
The role of intestinal microbiota is becoming ever more important in the context of obesity, type II diabetes (T2D), and infectious disorders as represented by the emerging discipline "therapeutic microbiology". The gut microbiota is strictly interconnected with obesity and T2D playing also an important role in immune system regulation. Obesity and diabetes can lead to chronic inflammation, which results in the secretion of pro-inflammatory cytokines like IL-6, IL-1, and TNF-alpha, causing immune system alteration which predisposes patients with obesity and T2D to chronic infections. Therefore, the principal aim of the study is to investigate changes in gut microbiota composition between patients with chronic infections or not, so as to attribute to specific phyla the formation of the infections in these patients.
This study aims to evaluate the effect of therapeutic exercise on the gut microbiome in chronic widespread pain patients. Our investigation purpose is to improve the quality of life of participants, reduce their disability and optimize their functionality. The intervention will last 6 weeks, with 2 face-to-face therapeutic exercise sessions guided by a professional and a 6-week post-intervention follow-up. The participation will require: 1. Attend the 12 therapeutic exercise sessions 2. Attend the 3 evaluations: at the beginning (A0), post intervention (A1) and +6 weeks after finishing the exercise program (A3). The items to be evaluated will be the following: 1. The Ronald Morris Disability Questionnaire (RMDQ) 2. Anxiety (State-Trait Anxiety Inventory (STAI)) 3. Depression: Beck Depression Inventory (BDI) 4. Quality of Life: SF-12 5. Pain: numerical scale (0-100) and The Brief Pain Inventory (BPI) 6. Sensory tests: heat pain threshold (HPT), pressure pain threshold (PPT) and pain modulation (CPM) 7. Perform a pre blood test on interleukins IL-18 and IL-1β This study involves the processing of personal data, so the researchers will guarantee confidentiality in their treatment at all times, complying with the personal data protection regulations, in particular, European Regulation 679/2016. , of April 27, general data protection, as well as Organic Law 3/2018, of December 5, Protection of Personal Data and Guarantee of Digital Rights. In order to maintain your privacy and anonymity during the research, only one person on the research team will know how names were assigned to a participation number.
This prospective observational cohort study aims to learn about temporal changes in the gut microbiota before and after migrating to high altitudes in healthy participants. The main questions it aims to answer are: - changes in the gut microbiome before and after migrating to high altitude. - Do the migrants tend to share similar gut microbiota characteristics with the residents? Participants will detect 16S ribosomal RNA profiles from stool samples. Researchers will compare the residents with the migrants to see if gut microbiota characteristics are similar.