Journal of Oral Science Research ›› 2020, Vol. 36 ›› Issue (4): 355-359.DOI: 10.13701/j.cnki.kqyxyj.2020.04.012

Previous Articles     Next Articles

Metagenomic Analysis of Microbial Community Profiles in Deep Caries in Different Databases

CHANG Ting1,2, ZHOU Mi1,2, LI Yihong3, LIU Gaoxia1,2*   

  1. 1. Department of Stomatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China;
    2. Hubei Province Key Laboratory of Oral and Maxillofacial Development and Regeneration, Wuhan 430022, China;
    3. New York University College of Dentistry, New York10010, USA
  • Received:2019-11-27 Online:2020-05-28 Published:2020-05-28

Abstract: Objective: To explore the annotation distinction of microbial taxa of human deep carious lesion in different databases. Methods: Sixteen deep carious samples were obtained from the first permanent molars of eight young adult patients. High-throughput metagenomic technology was used to sequence the microbial genomic DNA of each sample. The microbial composition and abundance at each taxon level were analyzed with both the NCBI nr database and HOMD database. Results: For the deep carious lesions, whether the NCBI nr database or HOMD database, the top 10 microbial taxa found at class rank were Actinobacteria, Bacilli, Bacteroidetes,Coriobacteriia, Negativicutes, Fusobacteriia, Clostridia, Betaproteobacteria, Flavobacteriia and Synergistia. At the genus rank, the top 10 microbial taxa identified from both databases were Lactobacillus, Actinomyces, Olsenella, Prevotella, Propionibacterium, Streptococcus, Selenomonas, Corynebacterium, Leptotrichia and Parascardovia. The abundance and percentage of the microbial taxa acquired from two databases were similar (P>0.05). Conclusion: The findings demonstrated that there was no significant statistical difference in microbial annotation analysis between the NCBI nr database and HOMD database for deep carious samples.

Key words: deep caries, microecology, metagenome, database