Journal of endodontics · 2013
Microbial analysis in primary and persistent endodontic infections by using pyrosequencing.
Сравнительное исследованиеСтатьяПоддержка исследования: вне правительства СШАНазвание и аннотация: Перевод в очереди
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Hong Bo-Young, Lee Tae-Kwon, Lim Sang-Min, Chang Seok Woo, Park Joonhong, Han Seung Hyun, Zhu Qiang, Safavi Kamran E, Fouad Ashraf F, Kum Kee Yeon
Аннотация
INTRODUCTION: The aim of this study was to investigate the bacterial community profile of intracanal microbiota in primary and persistent endodontic infections associated with asymptomatic chronic apical periodontitis by using GS-FLX Titanium pyrosequencing. The null hypothesis was that there is no difference in diversity of overall bacterial community profiles between primary and persistent infections.
METHODS: Pyrosequencing analysis from 10 untreated and 8 root-filled samples was conducted.
RESULTS: Analysis from 18 samples yielded total of 124,767 16S rRNA gene sequences (with a mean of 6932 reads per sample) that were taxonomically assigned into 803 operational taxonomic units (3% distinction), 148 genera, and 10 phyla including unclassified. Bacteroidetes was the most abundant phylum in both primary and persistent infections. There were no significant differences in bacterial diversity between the 2 infection groups (P > .05). The bacterial community profile that was based on dendrogram showed that bacterial population in both infections was not significantly different in their structure and composition (P > .05).
CONCLUSIONS: The present pyrosequencing study demonstrates that persistent infections have as diverse bacterial community as primary infections.
METHODS: Pyrosequencing analysis from 10 untreated and 8 root-filled samples was conducted.
RESULTS: Analysis from 18 samples yielded total of 124,767 16S rRNA gene sequences (with a mean of 6932 reads per sample) that were taxonomically assigned into 803 operational taxonomic units (3% distinction), 148 genera, and 10 phyla including unclassified. Bacteroidetes was the most abundant phylum in both primary and persistent infections. There were no significant differences in bacterial diversity between the 2 infection groups (P > .05). The bacterial community profile that was based on dendrogram showed that bacterial population in both infections was not significantly different in their structure and composition (P > .05).
CONCLUSIONS: The present pyrosequencing study demonstrates that persistent infections have as diverse bacterial community as primary infections.
Предметные рубрики MeSH
ActinobacteriaAdultAgedAsymptomatic DiseasesBacteriaBacteroidetesDental Pulp CavityDental Pulp DiseasesFusobacteriaFusobacteriumGram-Negative Anaerobic BacteriaGram-Negative BacteriaHumansMicrobial ConsortiaMiddle AgedPeriapical PeriodontitisPrevotellaPropionibacteriumProteobacteriaRNA, BacterialRNA, Ribosomal, 16SSequence Analysis, DNASpirochaetalesYoung Adult