期刊
RHEUMATOLOGY
卷 60, 期 3, 页码 1054-1066出版社
OXFORD UNIV PRESS
DOI: 10.1093/rheumatology/keaa835
关键词
rheumatoid arthritis; microbiome; gut; oral cavity; case-control study
类别
资金
- National Natural Science Foundation of China [81803310]
- Grants for Scientific Research of BSKY from Anhui Medical University [XJ201619]
- 2019 innovation and entrepreneurship training program for college students in Anhui province [S201910366064]
Research has found some differences in the oral and gut microbiome of rheumatoid arthritis (RA) patients compared to healthy controls, including decreases and increases in specific bacteria. The alpha-diversity of the microbiome in the oral cavity may increase or remain unchanged, while it is more commonly decreased or unchanged in the gut microbiome of RA patients. More research is needed to explore the deep relationship between RA and the microbiome.
Background. Recently, researchers have proposed a possible relationship between RA and the microbiome of the oral cavity and gut. However, this relation has not been systematically established. Herein, we conducted a comprehensive review of the pertinent literature to describe this possible association. Methods. We systematically performed searches in databases, namely EMBASE, the Cochrane Library, and PubMed, from inception to 7 June 2020 to identify case-control studies that compared the oral and gut microbiome in adult RA patients with those of controls. The primary outcome was specific bacterial changes between RA and controls. The secondary outcome was microbial diversity changes between RA and controls. Results. In total, 26 articles were considered eligible for inclusion and reported some differences. Therein, >= 3 articles reported decreased Faecalibacterium in the gut of early-RA (ERA)/RA patients compared with healthy controls (HCs). Also, >= 3 articles reported decreased Streptococcus and Haemophilus and increased Prevotella in the oral cavity of ERA/RA patients compared with HCs. In addition, some Prevotella species, including P. histicola and P. oulorum, showed increased trends in RA patients' oral cavity, compared with HCs. The alpha-diversity of the microbiome was either increased or not changed in the oral cavity of RA patients, but it was more commonly either decreased or not changed in the gut of RA patients. Conclusions. In this systematic review, we identified the microbiome associated with RA patients in comparison with controls. More research is needed in the future to find the deep relationship between RA and the microbiome.
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