The intestinal epithelial layer forms the major barrier that separates our body from the external environment. Trillions of commensal bacteria reside in the gastrointestinal tract and have a vital role in digestion and the development of the immune system. The...

The human body has two major barriers -the gut barrier and the blood-brain barrier (BBB)- in addition to the placental barrier in pregnant females. The gut barrier regulates the flow of nutrients and signals molecules in the body and prevents...