Hiroko Ikeda, Eikichi Ihara, Kosuke Takeya, Koji Mukai, Manabu Onimaru, Kenoki Ouchida, Yoshitaka Hata, Xiaopeng Bai, Yoshimasa Tanaka, Taisuke Sasaki, Fumiyo Saito, Masumi Eto, Jiro Nakayama, Yoshinao Oda, Masafumi Nakamura, Haruhiro Inoue, Yoshihiro Ogawa
BACKGROUND: Achalasia is an esophageal motility disorder with an unknown etiology. We aimed to determine the pathogenesis of achalasia by studying alterations in esophageal smooth muscle contraction and the associated inflammatory response, and evaluate the role of esophageal microbiota in achalasia development. METHODS: We analyzed esophageal mucosa and lower esophageal sphincter (LES) samples, obtained from patients with type II achalasia who underwent peroral endoscopic myotomy...
March 12, 2024: Journal of Gastroenterology