Current Microbiology

, Volume 67, Issue 2, pp 170–176 | Cite as

Analysis of Fecal Lactobacillus Community Structure in Patients with Early Rheumatoid Arthritis

  • Xiaofei Liu
  • Qinghua Zou
  • Benhua Zeng
  • Yongfei Fang
  • Hong Wei


The objective of this study was to analyze human fecal Lactobacillus community and its relationship with rheumatoid arthritis. Samples taken from rheumatoid arthritis (RA) patients and healthy individuals were analyzed by quantitative real-time PCR. Bacterial DNA was extracted from feces, and amplicons of the Lactobacillus-specific regions of 16S rRNA were analyzed by denaturing gradient gel electrophoresis. The richness, Shannon-Wiener index, and evenness of gut microbiota of both groups were analyzed to compare fecal Lactobacillus community structures. Results of this study demonstrated that fecal microbiota of RA patients contained significantly more Lactobacillus (10.62 ± 1.72 copies/g) than the control group (8.93 ± 1.60 copies/g). Significant increases were observed in RA patients in terms of the richness, Shannon-Wiener, and evenness measures, indicating more bacterial species, and increased bacterial diversity and abundance. These results suggest a potential relationship between Lactobacillus communities and the development and progression of rheumatoid arthritis.


Rheumatoid Arthritis Lactobacillus Rheumatoid Arthritis Patient Early Rheumatoid Arthritis Intestinal Microflora 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.



This study was supported by the Natural Science Foundation of China (81072921) and National Basic Research Program of China (2013CB531406).


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Copyright information

© Springer Science+Business Media New York 2013

Authors and Affiliations

  • Xiaofei Liu
    • 1
  • Qinghua Zou
    • 1
  • Benhua Zeng
    • 2
  • Yongfei Fang
    • 1
  • Hong Wei
    • 2
  1. 1.Department of RheumatologySouthwest Hospital, Third Military Medical UniversityChongqingChina
  2. 2.Department of Laboratory Animal ScienceCollege of Basic Medical Sciences, Third Military Medical UniversityChongqingChina

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