Portal:Digestive system

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Digestive system

The gastrointestinal system is an organ system which takes in food, digests it to extract and absorb energy and nutrients, and expels the remaining waste as feces. It consists of the esophagus, stomach, and intestines, and is divided into the upper and lower gastrointestinal tracts.

Autonomic nervous system dysfunction of the gut, dysmotility, dysbiosis, and potentially, gut pathogens, are all thought to contribute to the symptoms of ME. (more...)

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Bifidobacteria are gram positive, anaerobic bacteria that are ubiquitous in a healthy gastrointestinal tract. They are protective against intestinal permeability. Decreased populations of bifidiobacteria have been associated with vitamin K deficiency, irritable bowel syndrome, and autism. (more...)

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