View clinical trials related to Microbiome.
Filter by:The purpose of this study Is to evaluate if a 4 weeks probiotic VSL#3 treatment and a strict LFD for 4 weeks are equally good in treating IBS symptoms in IBS patients with diarrhoea or mixed predominance and further evaluate the long term effect. Hopefully this one year individualized web-based IBS study will generate a fundament that could be used as a treatment in the primary care/sector to IBS patients.This one year study will be carried out based on an eHealth platform ibs.constant-care.com. Patients will self-measure on the web-program the first 4 weeks before randomization. The patients will fill out different questionnaires regarding symptom severity, adherence, stool consistency and frequency, quality of life, disease course type, food registration and weight. Nearly all of the questionnaires are illustrated to the patients in a traffic light manner (Green, Yellow and Red). They will also self-measure Fecal calprotectin on their smart phones and send in fecal samples for microbiome analysis. In this randomized cross over study - 104 IBS patients will be randomized to either a diet low in FODMAPs (fermentable, oligo-, di- and monosaccharides and polyols, LFD) or the probiotic product VSL#3® for 4 weeks. The probiotic group will receive 2 sachets a day (450 billions live bacteria in one sachet) for 4 weeks. After 4 weeks intervention (LFD or VSL#3) non responders, defined as a reduction of less than 50 points in IBS-SSS will after two weeks wash out period be crossed over. IBS patients randomized to LFD and responds to LFD will after a reintroduction counselling with dieticians at North Zealand university hospital after 4 weeks on a strict LFD start reintroducing high FODMAP foods until symptom flare (individual defined as either Yellow or Red, >175 in IBS-SSS). Hereafter they will go on a strict LFD again until symptom remission (IBS-SSS below 175, Green zone) - LFD responders will continue with this procedure for 10 months. IBS patients initially randomized to VSL#3 and are after 4 weeks of intervention characterized as responders will not be offered a LFD. Instead they will self- measure on the web with no intervention after the 4 weeks of VSL#3 treatment. When/if they reach a symptom flare ( again individually defined as either Yellow or Red, >175 point in IBS-SSS) they will be offered another 4 weeks VSL#3 treatment.
Cosmeceuticals are an emerging market within dermatology and the growth of natural products and derivatives of natural products has accelerated in use within the field. Here the investigators aimed to study the microbial and cosmetic effects of Synoxyl AZ, the trade name for topical acetyl zingerone (AZ), a novel compound designed based on Zingerone and curcumin.
This study is to assess the impact of two skincare regimens on the cutaneous microbiome and skin physiology of healthy male and female infants, ages 3-6 months using clinical, instrumental, D-Squame tape, microbiome and parental assessments over a five-week period.
The objectives of this study are to examine fecal bacterial population(s) and plasma cholesterol levels elicited by 40g of Oats and Cream of Rice over 6 weeks.
This research study plans to learn more about the role of female sex hormones on adipose tissue (or fat) and the gut microbiome (or the organisms that are in your digestive tract). The rationale for this study is that the rate at which women gain fat (especially in the stomach region) increases after menopause. It is thought to be due to the loss of estrogen because post-menopausal women who take estrogen gain less weight than those who do not take estrogen. Gut bacteria process estrogen and help determine the types of estrogen that circulate in the body. These bacteria can be changed with lifestyle factors such as diet, and may therefore, also affect the risk of diseases that are more common in women after menopause i.e., cardiovascular disease and cancer. In this study the investigators will obtain fat biopsies before and after 6 months of ovarian hormone suppression to measure how the fat cells change with the loss of female sex hormones (e.g., medical menopause). The investigators will also obtain stool and urine samples before and every month during the study to measure changes in the microbiome.
Morbid obesity leads to non-alcoholic fatty liver disease (NAFLD), and not all NAFLD cases benefit from weight loss e.g. after bariatric surgery. Our aim is to find out, which intrahepatic factors and / or biomarkers might be beneficial or can be identified as prognostic factors for remission of NAFLD after weight loss. As other factors such as the microbiome or muscle and fatty tissue also influence the development of obesity and liver diseases, it is planned to examine these parameters before and after bariatric surgery as well. Tissue biopsies will therefore be taken during the surgery, and blood as well as stool samples will be collected and compared for suitable biomarkers before and after the intervention.
The primary objective is to contrast the degree to which increased consumption of dietary fiber vs. fermented food can decrease inflammation, increase microbiota diversity and can impact microbiota production of short-chain fatty acids (SCFA), potential normalizers of metabolic and immune dysfunction, in obese and non-obese adults.
Recent advances in neonatal intensive care have dramatically increased the survival rate of extremely premature infants but the number of survivors with severe morbidity and lifelong neurodevelopmental impairment remains high. Perinatal white matter injury is the predominant form of brain injury in premature infants, often leading to adverse neurodevelopmental outcome. Intrauterine and neonatal infection and inflammation have been identified as major risk factors of neonatal brain injury. The fragile gut microbiome of premature infants seems to play an important role in health and disease as distortions of the microbiome occur prior to sepsis and necrotizing enterocolitis. Furthermore, the close link of the gut microbiome to neurological and psychiatric diseases in animal models suggests that the microbiome may influence brain maturation and development in preterm infants. Recent studies have underlined the importance of regulatory T cells as well as γδ T cells in brain injury, which can be directly influenced by the gut microbiome. It is therefore likely that an underdeveloped or distorted gut microbiome affects host immune response and may be a risk factor for neurodevelopmental disabilities in extremely premature infants who are already challenged by the unphysiologic early extrauterine environment after premature birth which affects maturation of the gut microbiome and immune system as well as neurophysiological maturation alike. Therefore, the overarching aim of the PreMiBraIn study is to elucidate the role of the gut-immune-brain axis on neonatal brain injury and its impact on long-term neurodevelopmental outcome of extremely premature infants. The study cohort will consist of a total of 60 extremely premature infants with a gestational age < 28 weeks and birth weight < 1000 grams. The investigators seek to characterize the orchestrated dynamics of the maturation of the gut microbiome and the subsequent impact on maturation of innate and adaptive immune mechanisms as well as neurophysiological maturation and neurodevelopmental outcome. Furthermore, the investigators will assess the value of the microbiome as a prognostic indicator for neonatal brain injury as well as short- and long-term neurodevelopmental outcome of extremely premature infants. This goal will be achieved by state-of-the-art techniques using 16s rRNA gene sequencing of the gut microbiome, holistic analysis of T cell biology using flow cytometry, whole transcriptome analysis and proteomics as well as neurophysiological measurements (amplitude-integrated EEG, near-infrared spectroscopy, visual evoked potentials) and cranial MRI of extremely premature infants. Short- and long-term neurological outcome will be investigated using Bayley Scales of Infant Development, Third Edition at one and two years corrected age, and Kaufmann-Assessment Battery for Children at five years of age. The investigators expect to find microbiome signatures that are predictive for later neurodevelopmental disabilities which may then be used for early screening and intervention and may suggest personalized therapeutic options. The prospects of precision medicine targeting the gut-immune-brain axis in extremely premature infants hold the opportunity to improve the overall outcome of these high-risk patients.
This study will define the impact of a probiotic supplement on microbiome, immune system, and metabolic syndrome. This study will determine the degree to which a probiotic supplement can 1) improve metabolic markers and metrics of metabolic syndrome, 2) alter microbiota composition and function, 3) impact microbiota metabolites, short-chain fatty acids-potential normalizers of metabolic and immune dysfunction, and 4) regulate immune status and function including reducing chronic, systemic inflammation as assessed by high dimensional immune profiling.
The purpose of this study is to determine whether or not 'Restore' lignite extract mineral supplement impacts the microbiome composition of the mouth and gut. Additionally, participant urine samples will be examined to determine whether or not 'Restore' mineral supplement impacts the composition urine biomarkers and toxins.