Modified allele-specific primer-polymerase chain reaction method for analysis of susceptibility of Helicobacter pylori strains to clarithromycin
- PMID: 17914955
- DOI: 10.1111/j.1440-1746.2007.04919.x
Modified allele-specific primer-polymerase chain reaction method for analysis of susceptibility of Helicobacter pylori strains to clarithromycin
Abstract
Background and aim: Most clarithromycin-resistant strains of Helicobacter pylori have a mutation from adenine (A) to guanine (G) at position 2142 or 2143 of the 23S rRNA gene. Our aim in this study was to develop a polymerase chain reaction (PCR)-based assay that could determine these mutations in a single reaction tube.
Methods: We designed the forward primer FP2143G and the reverse primer RP2142G, which specifically anneal with the 2143G- and 2142G-mutated sequences, respectively, of the 23S rRNA gene of H. pylori. We also designed the forward primer FP-1 and reverse primer RP-1 upstream and downstream from the positions 2142 and 2143, respectively, to distinguish the wild-type A2142G and A2143G mutations from each other by amplicon sizes. DNA was extracted from 292 gastric tissue samples positive for rapid urease test, and the DNA underwent the PCR reaction. The results were compared with minimum inhibitory concentrations (MIC) for clarithromycin.
Results: Helicobacter pylori strains with A2142G, A2143G and wild type could be distinguished by amplicon sizes by a single PCR reaction. The genotyping results were correlated well with the MIC values for clarithromycin. The median MIC for clarithromycin of the wild-type strains was <0.015 microg/mL. Those of strains with 2142G or 2143G were > or =1.0 microg/mL.
Conclusion: Our new PCR-based assay for 23S rRNA mutations of H. pylori is a useful method for detecting clarithromycin-resistant strains of H. pylori easily.
Similar articles
-
Determination of mutations of the 23S rRNA gene of Helicobacter pylori by allele specific primer-polymerase chain reaction method.J Gastroenterol Hepatol. 2007 Jul;22(7):1057-63. doi: 10.1111/j.1440-1746.2006.04546.x. J Gastroenterol Hepatol. 2007. PMID: 17608851
-
Dual-priming oligonucleotide-based multiplex PCR for the detection of Helicobacter pylori and determination of clarithromycin resistance with gastric biopsy specimens.Helicobacter. 2009 Feb;14(1):22-8. doi: 10.1111/j.1523-5378.2009.00654.x. Helicobacter. 2009. PMID: 19191892
-
Mutations in the 23S rRNA gene of clarithromycin-resistant Helicobacter pylori from Japan.Int J Antimicrob Agents. 2007 Sep;30(3):250-4. doi: 10.1016/j.ijantimicag.2007.04.009. Epub 2007 Jun 21. Int J Antimicrob Agents. 2007. PMID: 17590317
-
[Detection of Helicobacter pylori 23S rRNA gene mutation associated with clarithromycin resistance and its clinical applicability].Nihon Rinsho. 1999 Jan;57(1):87-92. Nihon Rinsho. 1999. PMID: 10036941 Review. Japanese.
-
Detection of clarithromycin-resistant Helicobacter pylori by stool PCR in children: a comprehensive review of literature.Helicobacter. 2013 Apr;18(2):89-101. doi: 10.1111/hel.12016. Epub 2012 Oct 12. Helicobacter. 2013. PMID: 23067446 Review.
Cited by
-
Increased academic stress is associated with decreased plasma BDNF in Chilean college students.PeerJ. 2023 Nov 3;11:e16357. doi: 10.7717/peerj.16357. eCollection 2023. PeerJ. 2023. PMID: 37941931 Free PMC article.
-
Peripheral brain-derived neurotrophic factor (BDNF) and salivary cortisol levels in college students with different levels of academic stress. Study protocol.PLoS One. 2023 Feb 22;18(2):e0282007. doi: 10.1371/journal.pone.0282007. eCollection 2023. PLoS One. 2023. PMID: 36812175 Free PMC article.
-
Optimal therapy for Helicobacter pylori infections.Nat Rev Gastroenterol Hepatol. 2011 Feb;8(2):79-88. doi: 10.1038/nrgastro.2010.210. Nat Rev Gastroenterol Hepatol. 2011. PMID: 21293508 Review.
-
Helicobacter pylori 23S rRNA gene A2142G, A2143G, T2182C, and C2195T mutations associated with clarithromycin resistance detected in Sudanese patients.BMC Microbiol. 2021 Feb 3;21(1):38. doi: 10.1186/s12866-021-02096-3. BMC Microbiol. 2021. PMID: 33535966 Free PMC article.
-
Whole-Genome Sequencing and Comparative Genomics of Three Helicobacter pylori Strains Isolated from the Stomach of a Patient with Adenocarcinoma.Pathogens. 2021 Mar 12;10(3):331. doi: 10.3390/pathogens10030331. Pathogens. 2021. PMID: 33809022 Free PMC article.
Publication types
MeSH terms
Substances
LinkOut - more resources
Full Text Sources
Other Literature Sources
Medical