Xiao Bing Xu1, Ying Hu2, Yang Wang3, Chui Jin Lai3, Tian Yu Zhang1. 1. Department of Otorhinolaryngology, EYE and ENT Hospital of Fudan University, China. 2. Department of Otorhinolaryngology, EYE and ENT Hospital of Fudan University, China. Electronic address: hu_ying_xxb_@163.com. 3. Research Center, EYE and ENT Hospital of Fudan University, China.
Abstract
OBJECTIVE: The aim of this study was to investigate the association between laryngeal expression of claudin-3 and laryngopharyngeal reflux (LPR) in a rat reflux model. METHODS: Eight Wistar rats were divided into two groups. Four rats underwent total esophageal myectomy to induce reflux, and the remainder underwent a sham operation as a control. All animals were sacrificed 12 weeks after surgery to perform tissue histology and Western blot analysis. RESULTS: Lymphocyte infiltration increased significantly in the study group in both esophageal and laryngeal samples (P=0.001, 0.002, respectively). Both esophageal and laryngeal expressions of claudin-3 were significantly lower in the study group when compared with that in the control group (P=0.045, 0.037, respectively). CONCLUSION: The results of this study suggest that a decrease in claudin-3 could be a sensitive indicator of reflux laryngitis in rats.
OBJECTIVE: The aim of this study was to investigate the association between laryngeal expression of claudin-3 and laryngopharyngeal reflux (LPR) in a rat reflux model. METHODS: Eight Wistar rats were divided into two groups. Four rats underwent total esophageal myectomy to induce reflux, and the remainder underwent a sham operation as a control. All animals were sacrificed 12 weeks after surgery to perform tissue histology and Western blot analysis. RESULTS: Lymphocyte infiltration increased significantly in the study group in both esophageal and laryngeal samples (P=0.001, 0.002, respectively). Both esophageal and laryngeal expressions of claudin-3 were significantly lower in the study group when compared with that in the control group (P=0.045, 0.037, respectively). CONCLUSION: The results of this study suggest that a decrease in claudin-3 could be a sensitive indicator of reflux laryngitis in rats.