View clinical trials related to Probiotics.
Filter by:Investigators wishes to influence the gut microbiota in patients with alcoholic liver disease in a randomized controlled clinical trial. The investigators hypothesize that the alcohol-related dysbiosis seen in these patients can be changed and disease progression haltered by modulating microbiota with probiotics during 24 weeks.
Probiotics are defined as "live micro-organisms that, when administered in adequate amounts, confer a health benefit to the host" (Hill et al, 2014). These microbes are generally applied in the gastrointestinal tract via fermented food products or capsules. In previous research, the investigators isolated bacterial strains with potential probiotic properties for the upper respiratory tract based on in vitro laboratory tests, in vivo mice experiments and genome sequencing. In this study, the investigators want to deliver the Proof-of-Concept that the most promising isolated strain, Lactobacillus casei AMBR2 (LAMBR2) and the well-documented probiotic strain Lactobacillus rhamnosus GG (LGG) also have interesting properties in humans, i.e. that these strains are able to -temporarily- persist in the upper respiratory tract of healthy volunteers and CRS patients after daily nasal application via a nasal spray for 2 weeks. In addition, the investigators aim to explore whether the application of these strains has an impact on the nasopharyngeal microbiome via 16S rRNA amplicon sequencing and dedicated qPCR analysis. Therefore, bacterial DNA from nasal swabs will be isolated via commercially available DNA extraction kits, followed by Illumina MiSeq sequencing in order to identify the bacterial species present in these samples. Furthermore, the concentration of the Lactobacillus and specific pathogens will be monitored via qPCR.
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.