New Site of Modification of 23S rRNA Associated with Clarithromycin Resistance of Helicobacter pylori Clinical Isolates

C Fontana, M Favaro, S Minelli… - Antimicrobial agents …, 2002 - Am Soc Microbiol
Resistance of Helicobacter pylori to clarithromycin occurs with a prevalence ranging from 0
to 15%. This has an important clinical impact on dual and triple therapies, in which …

[PDF][PDF] PCR-RFLP detection of point mutations A2143G and A2142G in 23S rRNA gene conferring resistance to clarithromycin in Helicobacter pylori strains

K Klesiewicz, P Nowak, E Karczewska… - Acta Biochimica …, 2014 - ruj.uj.edu.pl
Background. The occurrence of clarithromycin resistance among Helicobacter pylori strains
is a major cause of the treatment failure. Resistance to this drug is conferred by point …

A PCR-oligonucleotide ligation assay to determine the prevalence of 23S rRNA gene mutations in clarithromycin-resistant Helicobacter pylori

GG Stone, DEE Shortridge, J Versalovic… - Antimicrobial agents …, 1997 - Am Soc Microbiol
We have developed a rapid PCR-oligonucleotide ligation assay that can discriminate single
base substitutions that are associated with clarithromycin resistance in Helicobacter pylori …

[HTML][HTML] Helicobacter pylori resistance to antibiotics in 2014 in France detected by phenotypic and genotypic methods

A Ducournau, L Bénéjat, E Sifré, E Bessède… - Clinical Microbiology …, 2016 - Elsevier
A large survey of antimicrobial resistance of Helicobacter pylori was performed in France in
2014: 984 patients were enrolled by 75 gastroenterologists all over the country. Among the …

Characterization of clarithromycin-resistant Helicobacter pylori strains in Iran: A systematic review and meta-analysis

F Khademi, AH Sahebkar, H Vaez, M Arzanlou… - Journal of global …, 2017 - Elsevier
Background The high prevalence of clarithromycin-resistant strains of Helicobacter pylori is
a main challenge for the successful treatment of gastrointestinal infections. Point mutations …

Heteroresistance to clarithromycin and metronidazole in patients with a Helicobacter pylori infection: a systematic review and meta-analysis

E Kouhsari, N Sadeghifard, A Khadiv, H Sayadi… - Annals of Clinical …, 2022 - Springer
Background Antimicrobial resistance of H. pylori can lead to treatment failure. Importantly,
several studies have reported on heteroresistance, ie the presence of resistant and …

Minimal inhibitory concentration (MIC) values and different point mutations in the 23S rRNA gene for clarithromycin resistance in Helicobacter pylori

V De Francesco, A Zullo, E Ierardi… - Digestive and Liver …, 2009 - dldjournalonline.com
Clarithromycin is recognised as the key antibiotic for Helicobacter pylori treatment, since it
has the most powerful bactericidal effect in vitro compared to other available molecules …

Antimicrobial resistance of Helicobacter pylori in an eastern German region

D Hofreuter, J Behrendt, A Franz, J Meyer… - …, 2021 - Wiley Online Library
Background Antimicrobial therapy is recommended to eradicate Helicobacter (H.) pylori in
infected individuals. As first‐line treatments are empiric, knowledge of antimicrobial …

Identification of a Novel Mutation Affecting Domain V of the 23S rRNA Gene in Helicobacter pylori

S Toracchio, GM Aceto, R Mariani‐Costantini… - …, 2004 - Wiley Online Library
Background. This study analyzes clarithromycin resistance status and 23S rRNA gene
mutations in Helicobacter pylori strains from Central Italian patients. Materials and methods …

[HTML][HTML] Rapid detection of clarithromycin resistant Helicobacter pylori strains in Spanish patients by polymerase chain reaction-restriction fragment length …

S Agudo, G Pérez-Pérez, T Alarcón… - Revista espanola de …, 2011 - ncbi.nlm.nih.gov
Methods Gastric biopsies were obtained by endoscopy from patients with gastric symptoms.
H. pylori was cultured according to standard microbiological procedures and clarithromycin …