title: [Quantitative detection of human cytomegalovirus in aggressive and chronic periodontitis lesions].
abstract: OBJECTIVE
  To establish a quantitative real-time PCR assay for the detection of human cytomegalovirus (HCMV) DNA load in subgingival specimens from the patients with aggressive and chronic periodontitis, and to investigate the relationship between HCMV infection and the periodontal status.
  
  
  METHODS
  A total of 114 subgingival plaque specimens were taken from 18 subjects with aggressive priodontiti (AgP), 24 subjects with chronic periodontitis (CP) and 15 healthy control subjects. Standard quantification was performed with recombinant plasmid containing a conserved fragment of HCMV. The SYBR Green I fluorescent quantitative real-time PCR assay was established based on positive plasmid. HCMV DNA load in the specimens were detected with quantitative real-time PCR based on SYBR Green I fluorescence.
  
  
  RESULTS
  HCMV were detected in 58.3% of AgP sites and 41.7% of CP sites, however, only 6.7% of periodontally-healthy sites were HCMV positive. The detection rate of HCMV in periodontitis lesions was significantly higher than in periodontal health (P < 0.01). High copy-counts more than 10(4) of HCMV were detected in 33.3% of AgP sites, which were significantly higher than in CP sites (10.4%) (P < 0.05).
  
  
  CONCLUSIONS
  Subgingival infection with HCMV is closely associated with periodontitis. Active HCMV infection may be related to the rapid tissue destruction of AgP.
authors.affiliation: Dept. of Periodontics, School of Stomatology, Shandong University, Shandong Provincial Key Laboratory of Oral Biomedicine, Jinan 250012, China.
authors.forename: Xiao
authors.initials: X
authors.lastname: Li
authors.forename: Qin-Feng
authors.initials: QF
authors.lastname: Sun
authors.forename: Yun-Dong
authors.initials: YD
authors.lastname: Sun
authors.forename: Shao-Hua
authors.initials: SH
authors.lastname: Ge
authors.forename: Pi-Shan
authors.initials: PS
authors.lastname: Yang
mesh_terms: D000328:Adult; D055113:Chronic Periodontitis; D003587:Cytomegalovirus; D003586:Cytomegalovirus Infections; D003773:Dental Plaque; D005260:Female; D006801:Humans; D008297:Male; D010518:Periodontitis; D016133:Polymerase Chain Reaction