Oral Microbiome Dysbiosis Is Associated With Precancerous Lesions and Disorders of Upper Gastrointestinal Tract: A Population-Based Study

Dysbiosis of the salivary microbiota was observed in subjects with gastroesophageal reflux symptoms (GERSs) alone, as well as in those with combined conditions such as GERS and esophagitis, or esophagitis and Barrett's esophagus.