The aim of the present study is to assess the efficacy of two different probiotic products, lacto-fermented sauerkraut and the supplement Mutaflor, in the treatment of irritable bowel syndrome.
Irritable bowel syndrome (IBS) is a chronic gastrointestinal (GI) disorder that affects around 11% of the population globally. Several factors have been implicated in the pathogenesis of IBS, including psychological stress, gastrointestinal motility, and diet. More recently, it has become clear that the gastrointestinal microbiota may play a critical role in the pathophysiology of this functional GI condition. Gut microbiome manipulation, for example through the use of probiotic and prebiotic supplements, has shown some promise in the treatment of IBS. However, the research in this area is still in its infancy, and it remains unclear what type of intervention that is the preferred choice in cases of IBS. Many, if not most, probiotic supplements on the market today contain bacteria that are incapable of colonizing the human gut, which may partly explain why the health effects associated with the use of probiotics tend to be temporary, rather than permanent. Several studies have investigated how the use of probiotic supplements containing Bifidobacteria and Lactobacilli affect the clinical outcome of patients with IBS. However, to date, no studies have assessed whether fermented vegetables, a "natural" source of probiotic bacteria, are useful in the treatment of IBS. Moreover, little is known about how other types of probiotic bacteria, such as those belonging to the genus Escherichia, affect symptoms of IBS.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
QUADRUPLE
Enrollment
140
Sauerkraut fermentations have been shown to contain a broad range of microorganisms, including Leuconostoc mesenteroides, Lactobacillus plantarum, Leuconostoc citreum, Leuconostoc argentinum, Lactobacillus paraplantarum, and Lactobacillus coryniformis. Some of these bacteria, such as Lactobacillus plantarum, are classified as probiotics.
The probiotic Escherichia coli Nissle 1917, registered in Germany as the medicinal product Mutaflor, possesses a unique combination of fitness and survival factors.
Sauerkraut without live bacteria.
Volvat Medisinske Senter, Majorstuen
Oslo, Oslo, Norway
RECRUITINGIBS Symptom Severity Scale (IBS-SSS).
Time frame: Change from day 0 to day 42
Body weight
Time frame: Change from day 0 to day 42
Fecal microbiome diversity
16S rRNA gene sequences (prokaryotes)
Time frame: Change from day 0 to day 42
The Quality of Life Scale (QOLS)
Time frame: Change from day 0 to day 42
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Capsules without probiotics