Clinical usefulness of multiplex PCR lateral flow in MRSA detection: a novel, rapid genetic testing method.

Abstract:

:Methicillin-resistant Staphylococcus aureus (MRSA) with exogenous cassette DNA containing the methicillin-resistant gene mecA (SCCmec) poses a problem as a drug-resistant bacterium responsible for hospital- and community-acquired infections. The frequency of MRSA detection has recently been increasing rapidly in Japan, and SCCmec has also been classified more diversely into types I-V. A rapid test is essential for early diagnosis and treatment of MRSA infections, but detection by conventional methods requires at least two days. The newly developed multiplex PCR lateral flow method allows specific amplification of femA to detect S. aureus, mecA to detect SCCmec, and kdpC to detect SCCmec type II; moreover, PCR products can be evaluated visually in about 3 h. In the present study, we developed a PCR lateral flow method for MRSA using this method and investigated its clinical usefulness in the detection of MRSA. The results showed a diagnostic concordance rate of 91.7% for MRSA and methicillin-susceptible S. aureus between bacteriological examination and PCR lateral flow, and a high level of specificity in PCR lateral flow. In addition, a higher detection rate for S. aureus using the same sample was observed for PCR lateral flow (70.2%) than for bacteriological tests (48.6%). The above results show that PCR lateral flow for MRSA detection has high sensitivity, specificity, and speed, and its clinical application as a method for early diagnosis of MRSA infections appears to be feasible.

journal_name

Inflammation

journal_title

Inflammation

authors

Nihonyanagi S,Kanoh Y,Okada K,Uozumi T,Kazuyama Y,Yamaguchi T,Nakazaki N,Sakurai K,Hirata Y,Munekata S,Ohtani S,Takemoto T,Bandoh Y,Akahoshi T

doi

10.1007/s10753-011-9395-4

subject

Has Abstract

pub_date

2012-06-01 00:00:00

pages

927-34

issue

3

eissn

0360-3997

issn

1573-2576

journal_volume

35

pub_type

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