Comparison of two laboratory extraction techniques for the detection of Epstein-Barr virus in the saliva of nasopharyngeal carcinoma patients.

Autor: Shan J; Discipline in Oral Rehabilitation, Faculty of Dentistry, The University of Hong Kong, Hong Kong, China., Pow EH, Tsang PC, Perera RA, Kwong DL
Jazyk: angličtina
Zdroj: Journal of investigative and clinical dentistry [J Investig Clin Dent] 2014 May; Vol. 5 (2), pp. 104-8. Date of Electronic Publication: 2013 Dec 20.
DOI: 10.1111/jicd.12078
Abstrakt: Aim: The aim of the present study was to compare the effectiveness of DNA extraction using an extraction kit against the standard boiling technique for the detection of Epstein-Barr virus (EBV) DNA in nasopharyngeal carcinoma (NPC) patients.
Methods: Stimulated whole saliva samples from newly-diagnosed NPC patients were collected. EBV DNA was extracted by both techniques (n = 23) followed by quantitative real-time polymerase chain reaction (PCR) using the primer/probe set for BALF5.
Results: The results of the quantitative real-time PCR were reproducible in both groups. The two techniques were moderately correlated (r = 0.67, P < 0.05), and the degree of agreement was good. However, the mean EBV DNA level in the boiling group (3.02 ± 8.67 × 10(6) copies/μL) was significantly higher than the extraction kit group (1.15 ± 2.66 × 10(6) copies/μL) (P < 0.05). The EBV DNA level was higher in patients at an advanced overall stage (P = 0.05).
Conclusion: The results of the present study showed that the performance of the extraction kit was not superior to the simple boiling technique for the detection of salivary EBV DNA in NPC patients using real-time PCR. The salivary EBV DNA level in patients at an advanced overall stage appeared to be higher than in patients at an early stage.
(© 2013 Wiley Publishing Asia Pty Ltd.)
Databáze: MEDLINE
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