Roux-en-Y gastric bypass involves the creation of a small upper stomach pouch and its attachment to the jejunum, which results in bypass of the rest of the stomach and the duodenum. This bypass ...

It's named for the middle section of your small intestine: the jejunum. During the endoscopy, the practitioner can take a sample. It's then cultured and evaluated for bacteria. Jejunal aspiration ...

In a breakthrough for the advanced study of gut health, scientists have developed a 3D microscopic version of the human intestines condensed into a small chip about half the size of a five-cent coin.