View clinical trials related to Dysbiosis.
Filter by:Dysbiosis of the gut microbiome has been recognized to underlie the pathogenesis of various gastrointestinal conditions. Probiotics are known to exert beneficial effects on gut health and have great potential for use as microbiome interventions for gastrointestinal and metabolic diseases. While it is widely known that probiotic bacteria favourably alter the intestinal microflora balance, their other mechanisms of action have not been systematically characterized. The ability of probiotics to modulate dysbiosis may lead to reduced levels of endotoxaemia and oxidative stress. In this study, the investigators propose to examine the effects of 4-week Vivomixx treatment on the gut microbiome and bacterial translocation in healthy Asian volunteers with and without colonic lavage or antibiotic treatment. The study will also examine the same outcome parameters 4 weeks upon cessation of the product. The findings derived from the study will provide valuable insights into the microbiota changes associated with colonic lavage or antibiotic treatment, and the use of probiotic (Vivomixx). This has important clinical implications in designing treatment strategies in clinical practice such as the use of Vivomixx as microbiome interventions with antibiotics which are known to induce Clostridium difficile-associated diarrhoea, as well as in the therapeutic management of various diseases associated with dysbiosis.
To evaluate the effect of daily consumption of a combination of garlic and onion extracts on the intestinal microbiota and the production of short chain fatty acids in elderly healthy volunteers living in a residence. Likewise, any incident related to health that occurred during that period will be noted.
Periodontitis is a chronic inflammatory disease of the tooth supporting structures induced by a dysbiosis in the oral and subgingival microenvironment of susceptible patients. The long-term swallowing of high doses of periodontal pathogenic microorganisms could induce a dysbiosis of the intestinal microbiota, favouring the establishment of an 'inflamed' microbiome in terms of composition and/or function. The present project is aimed at a better understanding of the etiopathogenetic correlation between periodontitis and intestinal dysbiosis, and aims to explore the hypothesis that non-surgical periodontal treatment may reduce bacterial alpha diversity in stool samples. Fifty patients affected by stage III-IV periodontitis will be recruited, and treated by means of full-mouth scaling and root planing. Salivary and stool samples, together with a complete periodontal charting and a food diary will be collected and compared at baseline and 3 months after treatment. Age, gender and BMI-matched healthy individuals will be recruited as controls.
The aim of this study is to determine the effects of an intervention using a commercially available probiotic in a cohort of acute stroke patients. In order to determine this, a double blinded, randomised and placebo-controlled study design was chosen.
Obstructive Sleep Apnea Syndrome (OSA) is one of the most common chronic diseases and is associated with prognostic cardiovascular and metabolic co-morbidities. OSAS is the recurrence of complete (apnea) or partial (hypopnea) collapse of the upper airway during sleep resulting in sleep fragmentation and chronic intermittent hypoxia (ICH) which are the major determinants of cardiovascular and metabolic complications including type 2 diabetes, obesity and non-alcoholic fatty liver. These comorbidities are associated with a change in intestinal microbial ecology. In most cases, there is a reduction in bacterial genetic diversity and more or less specific signatures of cardiovascular and metabolic diseases, making it possible to envisage personalized and innovative therapeutic treatments. In animals exposed to intermittent hypoxia, there is local hypoxia that increases intestinal permeability, produces a reduction in microbiota diversity and favors microbial species that are at the origin of pro-inflammatory factors. Continuous Positive Airway Pressure (CPAP) is the standard treatment for OSA. Its effect on the intestinal microbiota has not yet been evaluated.
This is an observational cross-sectional study whose objective is to analyse associations between the intestinal and salivate microbiota with lifestyles (eating patterns, physical activity, tobacco and alcohol consumption), arterial aging and cognitive function. It will take place in five different research units located in Spain
Shift workers are a growing population. It is well established that these workers face an increased risk of developing chronic diseases, but the underlying mechanisms remain debated. Various factors such as internal circadian desynchronization, unhealthy lifestyle behaviours, and lack of sleep interact in complex ways. Recently, it has been suggested that the gut microbiota (GM) may play an important role in this increased risk. The goal of this study is to describe the variations of the GM composition in shift workers across three different rotating weekly shifts (morning, afternoon, night) and to measure the impact of a 3- week walnuts supplementation intervention consisting in a controlled experimental study. Therefore, we propose a 6-weeks study including an observational and an experimental part. First, in the observational part, we will compare the gut microbiota of shift workers across three shifts (morning, afternoon and night). In the second part of the study, participants will add to their usual intakes a daily serving of nuts (30g). Again, we will compare the gut microbiota composition across the three types of shifts. During the study, participants will record their food intake, sleep and defecation time. We will also monitor their blood glucose levels continuously during the 4 first weeks of the study.
The purpose of this study is to determine if the gas-sensing capsule can be used to identify increased numbers and a change of the composition of microbiota or microorganisms in the gut to assess small intestinal dysbiosis
Due to the high incidence, cancer and the concomitant presence of malnutrition are currently a worldwide public health problem. The loss of weight and body tissues is a common condition in cancer patients with lesions of the airways and digestive tract and is related to anorexia and the presence and duration of gastrointestinal symptoms, such as diarrhea. The latter directly interferes with the progression of enteral diets, which are administered in order to provide adequate nutritional support for the recovery of patients and nutritional status. In this sense, the importance of measures to help reduce diarrhea episodes is reinforced, aiming at the adequate infusion of enteral diets and, consequently, nutritional needs. It is known that the use of antimicrobials is closely related to the increased incidence of nasocomial diarrhea, as it facilitates colonization by pathogenic bacteria, such as Clostridium difficile. In addition, nosocomial diarrhea is a very relevant occurrence due to the financial burden it causes for the hospital institution, which can also worsen the patient's clinical condition, since he is weakened due to the underlying disease. Despite these important aspects, studies carried out with the aim of reducing diarrhea episodes in patients with airway and digestive lesions are still not described in the literature. In this context, the use of symbiotics presents itself as a possibly beneficial alternative, considering the role of probiotics and prebiotics in the modulation of intestinal function. In this sense, this work aims to evaluate the impact of perioperative supplementation with symbiotic on clinical outcomes and intestinal function of patients with colon cancer and digestive airways undergoing colorectal resection. It is assumed that the use of symbiotics could have better results than the use of probiotics and isolated prebiotics.
Vaginal dysbiosis is a common condition among women. Vaginal dysbiosis covers imbalances in the vaginal flora, caused by the composition of microbes, bacteria, viruses and fungi. Dysbiosis occurs in about 16% of all women in Denmark. A large proportion of women who have vaginal dysbiosis do not experience any symptoms. However, vaginal dysbiosis can present challenges in several contexts, including a higher tendency for bacterial infections in the female genitals, lower chances of pregnancy in women undergoing fertility treatment, just as it can predispose to premature birth. This project is aimed at women aged 18-40, who wants to participate in a study to investigate whether, by transplanting vaginal secretion from one woman with a normal vaginal bacterial flora to another woman with an imbalance in the vaginal bacterial flora (called vaginal dysbiosis), can establish a normal vaginal bacterial flora in the recipient of the transplant. The study will also explore weather genetic, immunological, hormonal, metabolic, health behaviors and clinical factors have significance on whether a normal vaginal flora is achieved after transplantation.