Aug 16, 2014

First record of isolation and characterization of methicillin resistant Staphylococcus lugdunensis from clinical samples in Iraq

BioMed Research International
Alaa H Al-Charrakh, Mohammed H Obayes

Abstract

This study was conducted to determine the frequency of Staphylococcus lugdunensis in different clinical samples. Out of 690 clinical samples, a total of 178 coagulase negative staphylococci (CoNS) isolates were recovered. CoNS were identified as 10 different species; 22 isolates belonged to Staphylococcus lugdunensis. Two specific genes for S. lugdunensis were used (tanA gene and fbl gene) to confirm identification. Both of these specific genes were detected in 15 (68.1%) of 22 isolates that were identified phenotypically. The results of oxacillin MIC showed that 7 of the 15 (46.6%) S. lugdunensis isolates were oxacillin resistant. The antibiotic susceptibility testing against 16 antibiotics showed that resistance rates were variable towards these antibiotics. Eight of fifteen S. lugdunensis isolates (53.3%) were β-lactamase producer. Results of molecular detection of mecA gene found that mecA gene was detected in 6 (40%) of 15 S. lugdunensis. All of these 6 isolates (S1, S2, S3, S4, S5, and S6) were resistant to oxacillin. One isolate (S7) was resistant to oxacillin but mecA was not detected in this isolate. This study is a first record of isolation and characterization of methicillin resistant S. lugdunensis (MRSL) from clini...Continue Reading

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References

  • References26
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Citations

Mentioned in this Paper

Bacterial Proteins
Methicillin resistant Staphylococcus aureus (organism)
FBL gene
Oxacillin
Metin
Lactamase
Staphylococcal Infections
Beta-Lactamase
Isolate compound
Staphylococcus lugdunensis

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