BACKGROUND Adenocarcinomas located near the gastroesophageal junction have unclear etiology and are difficult to classify. We used DNA methylation analysis to identify subtype-specific markers and new subgroups of gastroesophageal adenocarcinomas, and studied their association with epidemiological risk factors and clinical outcomes. METHODOLOGY/PRINCIPAL FINDINGS We used logistic regression m...

TO THE EDITOR: Gastroesophageal reflux disease (GERD) and its complications are increasingly recognized in many parts of Asia, largely due to an increasing prevalence of obesity. Obese subjects are found to have frequent transient lower esophageal sphincter (LES) relaxations (TLESRs) and more likely to reflux with underlying mechanisms being unclear. Besides the circular muscle, recent evidence...

A small angle (His angle) between the oesophagus and the fundus of the stomach is considered to act as flap valve and anti-reflux barrier. A wide angle results in dysfunction of the oesophagogastric junction and subsequently in gastroesophageal reflux disease (GERD). Here, we used real-time magnetic resonance imaging (MRI) at 50 ms resolution (20 frames per second) in 12 volunteers and 12 patie...