View clinical trials related to Intestinal Microbiota.
Filter by:The goal of this randomized clinical trial is to compare an antiinflammatory and environmentally friendly dietary strategy (AIA-D) designed based on the planetary health diet recommendations translated to the regional context and including nutrients related to antiinflammatory responses with an active control diet based on general healthy diet recommendations (CONV-D) in adults from 18 to 50 years of age with obesity (body mass index ≥30 kg/m2). The main questions it aims to answer are: - If the intervention with AIA-D will cause a significant decrease at the end of the intervention (six weeks) in lipopolysaccharide-binding protein (LBP) compared to CONV-D. - If intervention with AIA-D will cause a significant increase at the end of the intervention (six weeks) in the relative abundance of two specific bacteria genera (AM and FP) when compared to CONV-D. Participants will: - Sign the informed consent. - Provide two peripheral blood samples (taken by our trained professionals). - Provide two samples of feces. - Allow anthropometric (body weight, height, hip and waist circumferences) blood pressure measurements on two occasions. - Respond to 24 h dietary recall on two occasions. - Attend the 1-hour group sessions requested (three for AIA-D and one for CONV-D). - Follow the dietary recommendations provided. - Be willing to participate in social media groups to receive information and follow up during the six weeks of the intervention. Researchers will compare an antiinflammatory and environmentally friendly strategy (AIA-D) with an active control diet (CONV-D) based on general healthy diet recommendations to see if AIA-D decreases metabolic endotoxemia measured through LBP serum levels and increase the relative abundance of AM and FP, compared to CONV-D.
Despite the intensive worldwide research dedicated to the nutrition and faecal microbiota, the studies that follow the link between the early nutrition, initial intestinal microbiota, and development of children over a longer time period are limited. From 2010 to 2013, the investigators conducted a study "My-Milk" in Slovenia. From 185 participating pregnant women involved in the detailed part of the protocol (comprising of 4-days weighed dietary record, visits at clinic and biological sample collection), 152 participants completed the study at the child's first year of age. Five of the participants bore twins whose data was excluded from the research because infant's identity was not consistently followed throughout the research. In addition to studying the microbiota and fatty acid composition of breast milk and the initial development of intestinal microbiota of breastfed babies, the investigators also monitored the diet of expecting and nursing participants, concentration of vitamin D in serum and bone mineral density in participating mothers and children. The investigators performed anthropometric measurements of children during the first year of age. All singleton children who have completed My-Milk study (N= 147) will be invited in the follow-up study "My-Milk-2". The first step of the proposed study will be the evaluation of nutritional status of children aged 6 to 7 years in 2017/2018, including the assessment of the body composition (bone density, percentage of fat and muscle tissue), health indicators (blood pressure, blood cholesterol, frequency and severity of infections) and fecal microbiota. The obtained data of My-Milk and My-Milk-2 studies will enable the prospective cohort study to be carried out on the effects of early nutrition and various factors of mother and child during the first year of age on the health and developmental status of children aged 6- 7 years. The project results will significantly improve the progress in research areas of public health and nutrition. The interactions along the axis nutrition in early childhood, gut microbiota composition/ diversity and potential health problems in later life are still not fully explored. The investigators expect the results of the proposed study will contribute to the scientific development in this field in global prospective. The acquired information will also be an excellent basis for development of new dietary guidelines for children.
Tree nuts (for example brazil nuts, almonds, hazelnuts, walnuts, cashew nuts etc) contain a wide variety of nutrients including fatty acids, polyphenols and micronutrients. The beneficial health effects ascribed to the consumption of tree nuts include improvements to cardiovascular outcomes and regulation of glucose levels and inflammation. Emerging evidence suggests that specific components of nuts may also contribute to brain health and function. The aim of the present study is to assess the effects of four weeks' supplementation of nut components on cognition and subjective measures. Urinary metabolites and intestinal microbial communities will also be assessed allowing biomarkers of nut exposure to be highlighted.
Honey is a natural product that contains multiple nutrients; it is composed of fructose, glucose and fructooligosaccharides that can potentially serve prebiotic functions. It also contains more than 180 substances including amino acids, vitamins, minerals and enzymes. Investigators hypothesized that supplementation of enteral feeds with honey would produce a bifidogenic effect and stimulate the immune response in preterm infants. Investigators randomly assigned subjects to 4 groups receiving 0, 5, 10 and 15 grams of honey daily for 2 weeks and measured their effect on stool colonization, systemic immune parameters and anthropometric measurements.
The microbiota represents the collections of microbial communities that colonize a host. In health, the microbiota protects against pathogens and maturation of the immune system. In return, the immune system determines the composition of the microbiota. Altered microbial composition (dysbiosis) has been correlated with a number of diseases in humans. The real role of the microbiota in transplant recipients is still unknown even though we suspect that it may be affected directly or indirectly by immunosuppressive drugs and antimicrobial prophylaxis taken by transplant patients, as well as by inflammatory process secondary to ischemia/reperfusion injury. A number of studies have investigated the impact of liver transplantation on the intestinal microbiota. In a recent analysis of stool flora (Microb Ecol 2013; 65: 781-791) in 12 liver transplant recipients, changes in the microbiota were correlated to post-transplant infections. The authors suggested that the shift to pathogenic strains of bacteria due to the use of prophylactic antibiotics may be contributing to post-transplant complications. In a larger study, Wu et al (Hepatobiliary Pancreat Dis Int 2012; 11: 40-50) demonstrated marked changes in the gut microbiota post-transplantation with an increase in Enterobacteriaceae and Enterococcus, and reduction in Eubacteria, Bifidobacterium and Lactobacillus species. These changes, however, resolved over time such that by 6 months, at times when bacterial prophylaxis ends and immunosuppression is reduced. A better characterization of the impact of post-transplant therapy on the human microbiota has the potential to improve our understanding of the infection process and translate into development of new therapeutic strategies. The main goal of this study is to characterize intestinal microbiota and confirm the same bacterial DNA in peripheral blood and portal lymph nodes in patients affected with end-stage chronic liver disease, and to analyze its evolution from the moment of inclusion in waiting list throughout the first year after liver transplantation. For each patient, a healthy CONTROL with a similar age (± 10 years) will be selected from the same family setting, in whom just one sample will be obtained during the enrollment phase. The second goal is to analyze the potential associations between microbiota flora and transplant outcomes during the same period.
This study aims to investigate the direct effect of high amounts of dietary fibre and high amounts of red meat in daily diet on intestinal microbiota, anthropometry and obesity markers in healthy adults.