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M9620946.TXT
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1996-02-26
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Document 0946
DOCN M9620946
TI Identification of Mycobacterium intracellulare by a polymerase chain
reaction using species-specific primers.
DT 9602
AU Yamazaki T; Nakamura RM; Department of Bacteriology, National Institute
of Health, Tokyo,; Japan.
SO Tuber Lung Dis. 1995 Aug;76(4):330-5. Unique Identifier : AIDSLINE
MED/96048197
AB SETTING: The polymerase chain reaction (PCR) is a rapid and specific
method used to amplify a certain DNA fragment. It is applicable to rapid
diagnosis of mycobacterial infections. By use of species-specific
primers, it is possible to identify mycobacteria by PCR. In this study,
a newly constructed primer was tested for specificity for Mycobacterium
intracellulare in the PCR. OBJECTIVE: M. intracellulare is one of the
most frequently found bacteria in opportunistic infection in AIDS, and
rapid identification of this species is important. The purpose of this
study was to construct a primer specific to this species as a suitable
tool for identification. DESIGN: PCR products of M. tuberculosis and M.
intracellulare, obtained by using the primers YNP-1 and YNP-2, were
sequenced and compared. They showed a difference in the base sequences.
A sequence unique to M. intracellulare was used as the primer specific
to this species. Various mycobacterial and non-mycobacterial DNAs were
used as the primer specific to this species. Various mycobacterial and
non-mycobacterial DNAs were used as the template to evaluate the
specificity of the newly constructed primers, YNP-7 and YNP-8. Sputum
samples were also examined by PCR using the primers. RESULTS: In total
25 species of culture mycobacterial and non-mycobacterial strains and 76
sputum samples were tested by PCR. Only M. intracellulare DNA was
amplified with PCR using the primers YNP-7/8. CONCLUSION: The
specificity of the newly constructed primers for M. intracellulare was
confirmed.
DE *Bacterial Typing Techniques Base Sequence DNA Primers DNA,
Bacterial/*ANALYSIS Human Molecular Sequence Data
Mycobacterium/CLASSIFICATION Mycobacterium avium Complex/*ISOLATION &
PURIF Mycobacterium avium-intracellulare Infection/DIAGNOSIS
Polymerase Chain Reaction/*METHODS Species Specificity
Sputum/MICROBIOLOGY Support, Non-U.S. Gov't JOURNAL ARTICLE
SOURCE: National Library of Medicine. NOTICE: This material may be
protected by Copyright Law (Title 17, U.S.Code).