Unique bacteria colonize the gut shortly after birth and make serotonin to educate gut immune cells

Unique bacteria colonize the gut shortly after birth and make serotonin to educate gut immune cells

A recent Science Immunology study revealed that neonatal gut bacteria produce serotonin and down-regulate monoamine oxidase A (MOA) to limit serotonin breakdown, thereby promoting immune tolerance. Study: Gut bacteria–derived serotonin promotes immune tolerance in early life. Image Credit: Tatiana Shepeleva/Shutterstock.com Background Bacterial colonization in the neonatal gut plays a crucial role in the development of the immune …

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