Because sex and pregnancy hormones regulate RANK–RANKL signalling, we assessed the structure of intestinal villi — tiny, finger-like protrusions in the gut lining that provide a large surface ...

Barrett's esophagus is an acquired metaplastic abnormality in which the normal stratified squamous epithelium lining of the esophagus is replaced by an intestinal-like columnar epithelium.

Epithelial polyps are found in the uppermost layer of your stomach lining. Risks associated with the three most common types of stomach polyps, all of which are epithelial polyps, are: Researchers ...

They found that the inner lining of the upper intestine, called the "epithelium" –composed of a variety of cells that are not classically part of the immune system – also plays an active role ...