Abstract:Although its most well-written functions are digestion and absorption of nutrients, the gastrointestinal tract (GIT) is the most significant player in the human immune system. The GIT is home to more than 60% of the active immune cells in the entire body. Notwithstanding, the human gut is continuously exposed to antigens ingested with food and resident microorganisms. The density of microorganisms in the lumen of GIT increases aborad and is much higher in the colon. Despite a relatively low bacterial load in t… Show more
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