OBJECTIVE: Pepsin detection in throat sputum has been posited as a reliable biological marker of laryngopharyngeal reflux disease (LPRD). This study was designed to further correlate pepsin concentration with symptoms and signs of LPRD. STUDY DESIGN: Cross-sectional study. SETTING: Nanfang Hospital of Southern Medical University. SUBJECTS AND METHODS: Fifty-six laryngitis patients were divided into a reflux laryngitis group and a chronic laryngitis group based on the reflux symptom index (RSI), reflux finding score (RFS), and proton pump inhibitor treatment for two weeks. Oral and hypopharyngeal secretions from the study patients and from 15 healthy subjects were collected. Thirty-six obstructive sleep apnea (OSA) patients were divided into a mild-moderate group and a severe group by the apnea-hypopnea index (AHI). Bedtime and first-morning oral secretions were collected. Enzyme-linked immunosorbent assay was used to measure the pepsin concentration. RESULTS: In laryngitis patients, the total score of RSI and RFS (P < 0.05), and the symptoms, including clearing throat often, coughing, and sensing a lump in the throat (P < 0.006), were more severe in the pepsin-positive group. No significant differences were found between the oral and hypopharyngeal secretions. In OSA, pepsin levels in the first-morning oral secretions were correlated with AHI, mean SaO(2), and mini SaO(2) (P < 0.01). However, RSIs were not significantly correlated with these indicators. CONCLUSION: Higher levels of pepsin in sputum were associated with higher RSI and RFS in cases of laryngitis. There was no relationship between pepsin levels and RSI in cases of OSA. There were no differences of pepsin concentration in sputum collection methods or in collection timing.
OBJECTIVE: Pepsin detection in throat sputum has been posited as a reliable biological marker of laryngopharyngeal reflux disease (LPRD). This study was designed to further correlate pepsin concentration with symptoms and signs of LPRD. STUDY DESIGN: Cross-sectional study. SETTING: Nanfang Hospital of Southern Medical University. SUBJECTS AND METHODS: Fifty-six laryngitispatients were divided into a reflux laryngitis group and a chronic laryngitis group based on the reflux symptom index (RSI), reflux finding score (RFS), and proton pump inhibitor treatment for two weeks. Oral and hypopharyngeal secretions from the study patients and from 15 healthy subjects were collected. Thirty-six obstructive sleep apnea (OSA) patients were divided into a mild-moderate group and a severe group by the apnea-hypopnea index (AHI). Bedtime and first-morning oral secretions were collected. Enzyme-linked immunosorbent assay was used to measure the pepsin concentration. RESULTS: In laryngitispatients, the total score of RSI and RFS (P < 0.05), and the symptoms, including clearing throat often, coughing, and sensing a lump in the throat (P < 0.006), were more severe in the pepsin-positive group. No significant differences were found between the oral and hypopharyngeal secretions. In OSA, pepsin levels in the first-morning oral secretions were correlated with AHI, mean SaO(2), and mini SaO(2) (P < 0.01). However, RSIs were not significantly correlated with these indicators. CONCLUSION: Higher levels of pepsin in sputum were associated with higher RSI and RFS in cases of laryngitis. There was no relationship between pepsin levels and RSI in cases of OSA. There were no differences of pepsin concentration in sputum collection methods or in collection timing.
Authors: Giannicola Iannella; Claudio Vicini; Antonella Polimeni; Antonio Greco; Riccardo Gobbi; Filippo Montevecchi; Andrea De Vito; Giuseppe Meccariello; Giovanni Cammaroto; Giovanni D'Agostino; Annalisa Pace; Raffaella Cascella; Marco Brunori; Cristina Anna Maria Lo Iacono; Stefano Pelucchi; Giuseppe Magliulo Journal: Int J Environ Res Public Health Date: 2019-06-10 Impact factor: 3.390
Authors: Rocco Plateroti; Marta Sacchetti; Giuseppe Magliulo; Andrea Maria Plateroti; Annalisa Pace; Antonietta Moramarco; Alessandro Lambiase; Alice Bruscolini Journal: Life (Basel) Date: 2020-09-15
Authors: Adil Aldhahrani; Jason Powell; Shameem Ladak; Mahmoud Ali; Simi Ali; Bernard Verdon; Jeffrey Pearson; Chris Ward Journal: Laryngoscope Date: 2018-02-05 Impact factor: 2.970