The relationship between oral-origin bacteria in the fecal microbiome and albumin–bilirubin grade in patients with hepatitis C

Kenta Yamamoto, Takashi Honda, Takanori Ito, Yoji Ishizu, Teiji Kuzuya, Masanao Nakamura, Ryoji Miyahara, Hiroki Kawashima, Masatoshi Ishigami, Mitsuhiro Fujishiro

研究成果: Article査読

抄録

Background: Bacteria of oral origin (BO) in the gut are associated with prognosis in patients with cirrhosis. The Greengenes database (gg_13_8) is widely used in microbiome analysis, but the expanded Human Oral Microbiome Database (eHOMD), a specialized database for BO, can add more detailed information. We used each database to evaluate the relationship between the albumin–bilirubin grade (ALBI) and the microbiome in patients with hepatitis C. Methods: Eighty patients were classified into the low ALBI group (LA; n = 34) or high ALBI group (HA; n = 46). Isolated DNA from stool was amplified to target the V3–4 regions of 16S rRNA. The microbiomes of the two groups were compared using gg_13_8 or eHOMD. We evaluated the associations between microbiomes and prognoses using Cox proportional hazards models. Results: At the genus level, the two groups differed significantly regarding 6 (gg_13_8) and 7 (eHOMD) types of bacteria. All types except Akkermansia are classified as BO. Both databases showed an increase in Streptococcus and Veillonella. eHOMD showed a decrease in Fusobacterium and an increase in Fretibacterium; both produce various types of short-chain fatty acids. At the species level, the two groups demonstrated significant differences in 2 (gg_13_8) and 6 (eHOMD) bacterial types. Selenomonas noxia and Streptococcus salivarius were related to poor prognosis in univariate analysis. Conclusion: The HA group demonstrated increased BO, most of which produce lactic acid or acetic acid. The correlation between the microbiome and metabolism might be related to prognosis. eHOMD was a useful database for analyzing BO.

本文言語English
ページ(範囲)790-799
ページ数10
ジャーナルJournal of Gastroenterology and Hepatology (Australia)
36
3
DOI
出版ステータスPublished - 03-2021
外部発表はい

All Science Journal Classification (ASJC) codes

  • 肝臓学
  • 消化器病学

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