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DNA diversity among clinical isolates of Helicobacter pylori detected by PCR-based RAPD fingerprinting

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Akopyanz, Natalia, Bukanov, Nickolai O., Westblom, T.Ulf, Kresovich, Stephen, Berg, Douglas E.·1992·Nucleic Acids Research

Abstract

The RAPD (or AP-PCR) DNA fingerprinting method was used to distinguish among clinical isolates of Helicobacter pylori, a bacterium whose long term carriage is associated with gastritis, peptic ulcers and gastric carcinomas. This method uses arbitrarily chosen oligonucleotides to prime DNA synthesis from genomic sites to which they are fortuitously matched, or almost matched. Most 10-nt primers with > or = 60% G + C yielded strain-specific arrays of up to 15 prominent fragments, as did most longer (> or = 17-nt) primers, whereas most 10-nt primers with 50% G+C did not. Each of 64 independent H. pylori isolates, 60 of which were from patients in the same hospital, was distinguishable with a single RAPD primer, which suggests a high level of DNA sequence diversity within this species. In contrast, isolates from initial and followup biopsies were indistinguishable in each of three cases tested.

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Metadata

Authors
Akopyanz, N., Bukanov, N. O., Westblom, T. U., Kresovich, S., & Berg, D. E.
Venue
Nucleic Acids Research
Published
1992
Volume
20
Issue
19
Pages
5137-5142
ISSN
  • 0305-1048 (ISSN-L)
  • 1362-4962
OpenAlex
W2080490975
Cited by
752
References
0
FWCI
36.42
Type
journal article
Language
en
Open access
bronze

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CoChat. (2026). Citation check: DNA diversity among clinical isolates of Helicobacter pylori detected by PCR-based RAPD fingerprinting. https://app.cochat.ai/papers/10.1093/nar/20.19.5137
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Akopyanz, N., Bukanov, N. O., Westblom, T. U., Kresovich, S., & Berg, D. E. (1992). DNA diversity among clinical isolates of Helicobacter pylori detected by PCR-based RAPD fingerprinting. Nucleic Acids Research. https://doi.org/10.1093/nar/20.19.5137

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