Image1: Serotonin transporter expression (marked in brown) in human colon. Image2: TLR2 mRNA and protein expression in 5-HT treated cells.
Scientists at the University of Exeter Medical School and University of Zaragoza in Spain studied a protein TLR2, a critical detector of the microbiota found in the intestine. They found that it regulates levels of serotonin – a neurotransmitter of the brain and also found in the gut, where it regulates our bowel routines. The research in cell cultures and verified in mice, provides strong evidence that microbiota can interfere with human physiology by modulating the serotonin transporter activity...
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