Characteristics of faecal microbiota in Korean patients with clostridioides difficile-associated diarrhea

Yong Duk Jeon, Hea Won Ann, Woon Ji Lee, Jun Hyoung Kim, Hye Seong, Jung Ho Kim, Jin Young Ahn, Su Jin Jeong, Nam Su Ku, Joon Sup Yeom, Dongeun Yong, Kyungwon Lee, Jun Yong Choi

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)


Background: The intestinal microbiota plays an important role in the pathogenesis of Clostridioides difficile-associated diarrhea, and regional and racial characteristics influence the microbiome composition and diversity. We investigated the intestinal microbiome characteristics of patients with C. difficile colitis (CD+) compared to those of patients with colitis not due to C. difficile (CD-), patients with vancomycin-resistant enterococci (VRE) colonization, and healthy controls, in Korea. Materials and Methods: We collected stool samples from 24, 18, 11 and 13 subjects within CD+, CD-, VRE and healthy control groups, respectively. The microbial communities were evaluated by 454-pyrosequencing of bacterial 16s rRNA. Results: The species richness and microbial diversity were significantly lower in the CD+ group compared to those in healthy controls, but not compared to those in CD- and VRE groups. Phylum-level analysis showed that the proportion of Actinobacteria in the CD+ group was significantly lower than in the healthy control, but was unchanged compared to that in CD- and VRE groups. At the genus level, compared to the healthy group, the CD+ group showed significantly lower proportions of Blautia, Bifidobacterium, Faecalibacterium et al. Compared to the VRE group, the CD+ group showed a significantly higher proportion of Anaerostipes. Conclusions: We could identify the intestinal microbiome characteristics of Koreans with C. difficile colitis. It might help to develop microbiome based diagnostic and treatment modalities.

Original languageEnglish
Pages (from-to)365-375
Number of pages11
JournalInfection and Chemotherapy
Issue number4
Publication statusPublished - 2019 Dec 1

Bibliographical note

Funding Information:
This work was supported by a grant from the Ministry of Health & Welfare, Republic of Korea (grant number: HI14C1324).

Publisher Copyright:
Copyright © 2019 by The Korean Society of Infectious Diseases, Korean Society for Antimicrobial Therapy, and The Korean Society for AIDS.

All Science Journal Classification (ASJC) codes

  • Infectious Diseases
  • Pharmacology (medical)


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