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Research suggests that gut microbes, the brain, and the central nervous system can influence each other via what is known as the "gut-brain axis," including by regulating the production of certain ...
Gut microbiota, gut microbiome, or gut flora are the microorganisms, including bacteria, archaea, fungi, and viruses, that live in the digestive tracts of animals. [ 1 ] [ 2 ] The gastrointestinal metagenome is the aggregate of all the genomes of the gut microbiota .
Bacteria in the human gut’s intestines are the most diverse in the human body and play a vital role in human health. In the gastrointestinal tract, dysbiosis manifests particularly during small intestinal bacterial overgrowth (SIBO), commonly caused by a decrease in the passage of food and waste through the gastrointestinal tract following surgery or other pre-existing conditions. [17]
The species and diversity of the microorganisms may be related to the various levels of hormones during pregnancy. Vaginal flora can be transmitted to babies during birth. Vaginal dysbiosis can lead to vaginal infections like bacterial vaginosis which makes one relatively susceptible to sexually transmitted diseases.
The manipulation of the gut microbiota is complex and may cause bacteria-host interactions. [5] Though probiotics are considered safe, some have concerns about their safety in certain cases. [ 5 ] [ 41 ] Some people, such as those with immunodeficiency , short bowel syndrome , central venous catheters , and cardiac valve disease , and premature ...
Some of the Bifidobacterium animalis bacteria found in a sample of Activia yogurt: The numbered ticks on the scale are 10 micrometres apart.. In 1899, Henri Tissier, a French pediatrician at the Pasteur Institute in Paris, isolated a bacterium characterised by a Y-shaped morphology ("bifid") in the intestinal microbiota of breast-fed infants and named it "bifidus". [5]
The gut microbiota are very important for the host health because they play role in degradation of non-digestible polysaccharides (fermentation of resistant starch, oligosaccharides, inulin) strengthening gut integrity or shaping the intestinal epithelium, harvesting energy, protecting against pathogens, and regulating host immunity.
Probiotics are bacterial preparations that alter the bacterial flora in the bowel to cause a beneficial effect. Animal research has demonstrated that probiotics have barrier enhancing, antibacterial, immune modulating and anti-inflammatory effects which may have a positive effect in the management of SIBO in humans. [ 4 ]