Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
2009-4-7
pubmed:abstractText
A total of 186 Helicobacter pylori isolates and 532 gastric biopsies recovered from 532 patients with varying degrees of gastroduodenal pathology are subjected to in vitro antibiotic susceptibility testing using the disc-diffusion method, Etest (MIC breakpoints) and molecular testing using the polymerase chain reaction (PCR). In the isolates studied, antibiotic resistance was as follows: piperacillin (72%), amoxicillin (66%), erythromycin (78%), tetracycline (100%) and metronidazole (95%). All isolates were sensitive to ofloxacin, ciprofloxacin and norfloxacin. None of the 245 amplicons (positive for H. pylori) from the biopsies were digested with the Bbs1 and Bsal restriction enzyme used in the polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) technique, showing sensitivity to clarithromycin. However, a 238 bp fragment from H. pylori chromosomal DNA (corresponding to the quinolone resistance determining region [QRDR]) of the gyrA gene was amplified successfully. Twelve (4.9%) of the 245 strains studied had the described mutation at position 91, from asparagine (Asn) to glycine (Gly). The study showed that all the H. pylori strains were sensitive to clarithromycin and ciprofloxacin. It also highlighted PCR as a potential tool for faster diagnosis and determination of antibiotic susceptibility (within 24 h) of H. pylori from biopsies and/or isolates recovered from peptic ulcer and gastritis patients.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
0967-4845
pubmed:author
pubmed:issnType
Print
pubmed:volume
66
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
10-3
pubmed:meshHeading
pubmed-meshheading:19348120-Amoxicillin, pubmed-meshheading:19348120-Anti-Bacterial Agents, pubmed-meshheading:19348120-Biopsy, pubmed-meshheading:19348120-Ciprofloxacin, pubmed-meshheading:19348120-Clarithromycin, pubmed-meshheading:19348120-DNA, Bacterial, pubmed-meshheading:19348120-Drug Resistance, Multiple, Bacterial, pubmed-meshheading:19348120-Dyspepsia, pubmed-meshheading:19348120-Helicobacter Infections, pubmed-meshheading:19348120-Helicobacter pylori, pubmed-meshheading:19348120-Humans, pubmed-meshheading:19348120-Metronidazole, pubmed-meshheading:19348120-Microbial Sensitivity Tests, pubmed-meshheading:19348120-Nigeria, pubmed-meshheading:19348120-Peptic Ulcer, pubmed-meshheading:19348120-Polymerase Chain Reaction, pubmed-meshheading:19348120-Stomach, pubmed-meshheading:19348120-Tetracycline
pubmed:year
2009
pubmed:articleTitle
Antibiotic susceptibility patterns in Helicobacter pylori strains from patients with upper gastrointestinal pathology in western Nigeria.
pubmed:affiliation
Molecular Biology and Biotechnology Division, Nigerian Institute of Medical Research, Yaba, Lagos, Nigeria. kolaremi95@yahoo.com
pubmed:publicationType
Journal Article