Analysis of gastric microbiota and Helicobacter pylori infection in gastroesophageal reflux disease

Author:

Sugihartono Titong,Fauzia Kartika Afrida,Miftahussurur Muhammad,Waskito Langgeng Agung,Rejeki Purwo Sri,I’tishom Reny,Alfaray Ricky Indra,Doohan Dalla,Amalia Rizki,Savitri Camilia Metadea Aji,Rezkitha Yudith Annisa Ayu,Akada Junko,Matsumoto Takashi,Yamaoka Yoshio

Abstract

Abstract Background We evaluated the microbiota in the stomach of Gastroesophageal Reflux Disease (GERD) patients. We compared Erosive Reflux Disease (ERD) to gastritis and Non-erosive Reflux Disease (NERD) subjects by 16S rRNA approach on gastric biopsy specimens. A total of 197 subjects were included consisting of gastritis (68; 34.52%), ERD (55; 27.92%), and NERD (74; 37.56%). After quality filtering, 187 samples were included for OTU analysis using Qiime2. Results We observed a significant difference in alpha diversity (Shannon and Simpson indexes were P = 0.0016 and P = 0.017, respectively). A significant decrease in alpha diversity index was observed in NERD with Helicobacter pylori (H. pylori)-positive subjects than in gastritis (Simpson index P = 0.022; Shannon index P = 0.029), indicating a significant influence of H. pylori on the diversity in the stomach despite the diseases. In H. pylori-negative samples, alpha diversity measurement by the abundance coverage estimates (ACE) and Fisher Test revealed that ERD had significantly lower richness than gastritis and NERD groups (P = 0.00012 and P = 0.00043, respectively). Anaerobacillus sp. could only be found in ERD patients by LEFse analysis. Conclusions The presence of ERD could alter microbiome diversity. A negative correlation between H. pylori and ERD is shown in this microbiome study but not in NERD.

Publisher

Springer Science and Business Media LLC

Subject

Infectious Diseases,Virology,Gastroenterology,Microbiology,Parasitology

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