Abstract
This study was designed to compare differentprimer sets for PCR analysis of H. pylori in the sameseries of 40 dental plaque samples. Three pairs ofprimers, HPU1/HPU2, HP1/HP2, and EHC-U/EHC-L, directed to the urease A gene, 16S rRNA gene, or 860-bpDNA of H. pylori, respectively, were used. Our resultsdemonstrate that EHC-L/EHC-U were moRespecific andsensitive for H. pylori added to saliva or dental plaque than HPU1/HPU2 and HP1/HP2. Thedetection rates for H. pylori DNA in dental plaquesamples from randomly selected adult patients from theDental Clinic of the University of Ulm were 26.5% (9/34) for HPU1/HPU2, 78.9% (30/38) for HP1/HP2, and100% (40/40) for EHC-U/EHC-L (P < 0.001). Nested PCRusing primers directed to the 860-bp DNA of H. pylorifurThe r confirmed the presence of H. pylori DNA (40/40) in all these samples. Our resultsindicate that primers EHC-U/EHC-L are to be recommendedfor PCR detection of H. pylori in the oralcavity.
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Song, Q., Haller, B., Schmid, R.M. et al. Helicobacterpylori in Dental Plaque (A Comparison of Different PCR Primer Sets). Dig Dis Sci 44, 479–484 (1999). https://doi.org/10.1023/A:1026680618122
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DOI: https://doi.org/10.1023/A:1026680618122