Document Detail

Detection of specific periodontal microorganisms from bacteraemia samples after periodontal therapy using molecular-based diagnostics.
MedLine Citation:
PMID:  21392048     Owner:  NLM     Status:  Publisher    
Castillo DM, Sánchez-Beltrán MC, Castellanos JE, Sanz I, Mayorga-Fayad I, Sanz M, Lafaurie GI. Detection of specific periodontal microorganisms from bacteraemia samples after periodontal therapy using molecular-based diagnostics. J Clin Periodontol 2010; doi: 10.1111/j.1600-051X.2011.01717.x. ABSTRACT: Aim: The aim of this study was to assess the presence of subgingival pathogens in peripheral blood samples from periodontitis patients before and after scaling and root planing (Sc/RP) using nested polymerase chain reaction (nested PCR). Materials and Methods: Peripheral blood samples were obtained from 42 patients with severe generalized chronic or aggressive periodontitis. In each patient, four samples of peripheral blood were drawn at different times: immediately before the Sc/RP procedure; immediately after Sc/RP; 15 and 30 min. post-Sc/RP. Blood samples were analysed for bacteraemia with anaerobic culturing and nested PCR, using universal bacterial primers that target the 16S-rRNA gene of most bacteria, subsequently re-amplified with specific primers to Porphyromonas gingivalis, Aggregatibacter actinomycetemcomitans, Tannerella forsythia, Eikenella corrodens, Campylobacter rectus and Prevotella intermedia, using a modified phenol-chloroform method for DNA extraction. Results: Presence of specific periodontal pathogens in peripheral blood after treatment was detected in 54.8% of the patients, in 47.6% with anaerobic culturing and in 19% with nested PCR. In 16.6%, the periodontal pathogens were detected before Sc/RP. P. gingivalis and A. actynomicetemcomitans were the pathogens most frequently detected in the bloodstream before and after Sc/RP. Conclusions: Nested PCR demonstrated the presence of DNA from periodontal pathogens in blood samples in severe periodontitis patients before, during and after periodontal therapy. The use of these molecular-based techniques may improve the accuracy from the results obtained by haemoculture.
Diana Marcela Castillo; María Carmen Sánchez-Beltrán; Jaime Eduardo Castellanos; Ignacio Sanz; Isabel Mayorga-Fayad; Mariano Sanz; Gloria Inés Lafaurie
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2011-3-11
Journal Detail:
Title:  Journal of clinical periodontology     Volume:  -     ISSN:  1600-051X     ISO Abbreviation:  -     Publication Date:  2011 Mar 
Date Detail:
Created Date:  2011-3-11     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0425123     Medline TA:  J Clin Periodontol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
© 2011 John Wiley & Sons A/S.
Group UIBO (Oral Basic Research Unit), Faculty of Odontology, University of El Bosque, Bogota, Colombia Group ETEP, Faculty of Odontology, University Complutense of Madrid, Madrid, Spain.
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