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.

Barrett's esophagus (BE) is a condition in which part of the normal esophageal squamous epithelium is replaced by a metaplastic columnar epithelium as a result of chronic gastroesophageal reflux.

First, they evaluated the biomarkers in 21 archived normal-Barrett's tissue pairs from patients with BE. Then, they assessed the biomarkers in 234 nonendoscopic esophageal sponge samples collected ...

and has produced increased peristaltic and lower esophageal sphincter pressures in normal volunteers. Agrawal et al. evaluated the effect of bethanechol on smooth-muscle contraction in patients ...