View clinical trials related to Microbiome.
Filter by:The purpose of the study is to learn how different dietary interventions affect microbiota diversity in pregnant women and the transmission of microbiota to their infants during pregnancy, birth, and postpartum.
Healsea® chronic is CE marked medical device indicated in adults for the treatment of nasal symptoms of chronic rhinosinusitis. This is an hypertonic seawater-based nasal spray supplemented with natural Symbiofilm® extract (0.2%) isolated from marine bacteria. In vitro, Symbiofilm® inhibits at early stage biofilm formation from bacteria found to be more prevalent and abundant in CRS patients (e.g. Staphylococcus aureus, Pseudomonas aeruginosa). This exploratory study is designed with aim to determine if the antibiofilm properties of Symbiofilm® may modify sino-nasal microbiota, impacting α and/ or β diversities.
Background: Significant sex differences exist in regard to alcohol use disorder (AUD) and alcoholic liver disease (ALD). To date, no studies have examined the brain-gut-microbiome (BGM) axis (which is the relationship between the gut, brain, and the bacteria within the gut) and sex-differences in AUD and ALD. Aims: 1) Demonstrate baseline sex differences in the microbiome and metatranscriptome of AUD and ALD and correlate those differences to severity, 2) determine if these baseline sex differences predicts abstinence or ALD related outcomes, and 3) show how altering the microbiome can decrease the severity of AUD and ALD in a sexdependent manner. Hypothesis: Our project is aimed to explore the hypothesis that sex-related differences of the BGM axis in AUD and ALD explains the variation in patient severity and outcome by sex, and that alterations of the BGM axis can decrease the severity of AUD and ALD in a sex-dependent manner. Methods: A pilot randomized placebo (VSL#3 vs placebo) control trial will be performed in patients with AUD and ALD for 6 months. Questionnaire data, clinical labs, serum, and feces for shotgun metagenomics will be collected at baseline, 3-months, and 6-months. Anticipated Results: Patients with severe AUD/ALD will have more microbes and microbial genes associated with inflammation. These differences will predict outcomes at 6-months and that changes of this baseline microbiome with VSL#3 will lead to more positive outcomes than placebo, with men having greater benefit from VSL#3 than women. Implications and Future Studies: The discovery of the mechanisms underlying sex-related differences in AUD/ALD is needed for the development of personalized recommendations for prevention and treatment in men and women
This is a prospective, two-centre, double-blind, parallel-arm, randomised, placebo-controlled trial evaluating the impact of FMT on patients with active Crohn's disease.
The overlap between chronic obstructive pulmonary disease (COPD) and bronchiectasis is a neglected area of research, and it is not covered by guidelines for clinical practice. COPD and bronchiectasis share common symptoms of cough with sputum production and susceptibility to recurrent exacerbations driven by new or persistent infection. Physiological criteria for the diagnosis of COPD and structural criteria for the diagnosis of bronchiectasis create the possibility for individual patients to fulfil both, resulting conceptually in either co-diagnosis or an overlap syndrome between the two conditions. The prevalence of this overlap will vary depending on the respective prevalence of COPD and bronchiectasis in the population under consideration. A recent study of 201 COPD patients with airway wall abnormalities typical of bronchiectasis confirmed an association with exacerbations and was predictive of mortality over 48 months. A further, single-centre study demonstrated a near three-fold increased mortality rate, with patients with bronchiectasis and associated COPD having a 5-year mortality of 55%, compared with 20% in those with bronchiectasis without COPD. Airflow obstruction is perhaps best considered one marker of disease severity in bronchiectasis. Disease-associated exacerbations have a major effect on patient healthcare costs as well as quality of life due to increased lung damage and mortality risk. Microorganisms such as Pseudomonas aeruginosa and, to a lesser extent, other Gram-negative and Gram-positive microorganisms identified in culture, have been linked to disease progression, poor clinical outcomes in bronchiectasis and driving airway neutrophil-mediated inflammation. The microbiome has the potential to provide valuable information regarding disease phenotype/endotype, treatment responses and targets for future therapy.
This study is a randomized, cross-over, dietary intervention research design comprising a 5-day run-in period, two 3-day dietary interventions, and a 7-day washout period. Participants (mother-offspring dyads) will be randomly assigned to order of interventions. Participants will be recruited as a convenience sample from mother-offspring dyads in the greater Moscow, Idaho and Boise, Idaho areas. The purpose of this study is to to learn more about the use of an allergen test strip to detect cow's milk and soy food allergen proteins in human milk, to explore the impact of maternal bovine milk and soy milk consumption on human milk and maternal/infant gastrointestinal microbiomes and to examine maternal stress during periods of dietary elimination and re-introductions periods.
Little is known about the dynamic change of human microbiome in different body sites including skin, mouth and gut during sailing. The present study aims to reveal the change of human microbiome in response to the sailing environment in a 1-month period, and its implication for human health.
This study is designed to study the variations in the microbiome among critically ill patients and the effect of admission to the medical intensive care unit (MICU) at the University of Chicago. Additionally, investigators will examine the downstream clinical effects of dysbiosis in ICU patients and how patients maybe effected long term.
The purpose of this study is to evaluate the effect of the probiotic Lactobacillus rhamnosus GG (LGG) and the effect of COVID-19 on the microbiome (the microorganisms that live in and on the human body) in exposed household contacts of COVID-19. This is a randomized, double-blind, placebo-controlled study, meaning subjects will be randomly assigned to receive LGG or a placebo (an inactive substance given in the same form as the active substance) and will not know which product they are receiving. Subjects will participate in the study for around 60 days. All subjects must refrain from taking any other probiotics while on study. All subjects must have access to e-mail and the internet to complete study questionnaires. Participation in this study entails taking LGG/placebo for 28 days, responding to questionnaires, and providing stool and nasal swab samples.
It has been shown that gut microbiome and microbiome metabolism can regulate or control the initiation of a cancer process. To the best of the investigators knowledge, no study has directly shown the relationship of the thyroid microcarcinoma to the human microbiome. In this work, the aim is to detect the microbiome in peripheral blood in a patient with a thyroid gland carcinoma, and to correlate it with the disease, compared to the microbiome of a group of patients who did not find another thyroid gland carcinoma