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논문 기본 정보

자료유형
학술저널
저자정보
Noh Jin Hee (Departments of Gastroenterology Asan Medical Center University of Ulsan College of Medicine Seoul Korea) Ahn Ji Yong (Departments of Gastroenterology Asan Medical Center University of Ulsan College of Medicine Seoul Korea.) Choi Jene (Departments of Pathology Asan Medical Center University of Ulsan College of Medicine Seoul Korea) Park Young Soo (Departments of Pathology Asan Medical Center University of Ulsan College of Medicine Seoul Korea.) Na Hee Kyong (Departments of Gastroenterology Asan Medical Center University of Ulsan College of Medicine Seoul Korea) Lee Jeong Hoon (Departments of Gastroenterology Asan Medical Center University of Ulsan College of Medicine Seoul Korea.) Jung Kee Wook (Departments of Gastroenterology Asan Medical Center University of Ulsan College of Medicine Seoul Korea) Kim Do Hoon (Departments of Gastroenterology Asan Medical Center University of Ulsan College of Medicine Seoul Korea.) Choi Kee Don (Departments of Gastroenterology Asan Medical Center University of Ulsan College of Medicine Seoul Korea.) Song Ho June (Departments of Gastroenterology Asan Medical Center University of Ulsan College of Medicine Seoul Korea.) Lee Gin Hyug (Departments of Gastroenterology Asan Medical Center University of Ulsan College of Medicine Seoul Korea.) Jung Hwoon-Yong (Departments of Gastroenterology Asan Medical Center University of Ulsan College of Medicine Seoul Korea.) Kim Jung Mogg (Department of Microbiology Hanyang University College of Medicine Seoul Korea.)
저널정보
거트앤리버 발행위원회 Gut and Liver Gut and Liver 제17권 제3호
발행연도
2023.5
수록면
375 - 381 (7page)
DOI
10.5009/gnl220076

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Background/Aims: Real-time polymerase chain reaction (RT-PCR) is a fast and simple method for the simultaneous detection of clarithromycin (CLR) resistance and Helicobacter pylori. We evaluated the effectiveness of RT-PCR compared to that of the rapid urease test (RUT) and assessed its value in verifying CLR resistance. Methods: A total of 70 specimens with confirmed H. pylori infection in culture were enrolled and analyzed in this prospective study. All specimens were subjected to RT-PCR assay using fluorescence melting peak signals to detect H. pylori infection and CLR resistances caused by either A2142G or A2143G mutations in the 23S ribosomal RNA gene (23S rRNA). The results were compared to those of RUT and antimicrobial susceptibility culturing tests to investigate the efficacy of RT-PCR. Results: Among the 70 specimens analyzed, the positivity rate was 97.1% (68/70) with RT-PCR and 82.9% (58/70) with RUT. CLR resistance (minimum inhibitory concentration >1.0 μg/mL) was confirmed in 18.6% (13/70), and fluorescence melting curve analysis showed that 84.6% (11/13) had point mutations in 23S rRNA. Ten specimens had only A2143G mutation, and one specimen contained both A2142G and A2143G mutations. Conclusions: RT-PCR assay was found to be more efficient than RUT in detecting H. pylori infection and could effectively verify CLR resistance compared to the antimicrobial susceptibility culturing test. Considering the high sensitivity and accessibility of RT-PCR method, it could be used to easily detect CLR-resistant H. pylori, thus helping clinicians select suitable treatment regimen and improve the eradication rate.

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