Teruyo Ito

Staphylococcal Cassette Chromosome (SCC)

Teruyo Ito, Sae Tsubakishita, Kyoko Kuwahara‐Arai, Xiao Han et autres

Staphylococcal cassette chromosome mec (SCC mec ) is a class of mobile genetic element SCC that carries the methicillin resistant determinant mecA . It is a mobile genetic element driven by site-specific recombinase(s) designated as cassette chromosome recombinase ( crr ). Although …

First report of sasX-positive methicillin-resistant Staphylococcus aureus in Japan

Hidemasa Nakaminami, Teruyo Ito, Xiao Han, Ayumu Ito et autres

SasX is a known virulence factor of Staphylococcus aureus involved in colonisation and immune evasion of the bacterium. The sasX gene, which is located on the ϕSPβ prophage, is frequently found in the sequence type (ST) 239 S. aureus lineage, which is …

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Molecular epidemiologic study of community-associated methicillin-resistant Staphylococcus aureus with Panton-Valentine leukocidin gene among family members in Japan

Yuki Uehara, Teruyo Ito, Yu Ogawa, Shintaro Hirotaki et autres

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Advances in Vancomycin Resistance: Research inStaphylococcus aureus

Keiichi Hiramatsu, Maria Kapi, Yutaka Tajima, Longzhu Cui et autres

This chapter concentrates on the mechanisms and biological features of vancomycin resistance in methicillin- and cephem-resistant Staphylococcus aureus (MRSA). Vancomycin-resistant S. aureus (VRSA) strains isolated from three American patients contained plasmids carrying the vanA gene complex. The gene complex is carried on …

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Intestinal carriage of methicillin-resistant Staphylococcus aureus in nasal MRSA carriers hospitalized in the neonatal intensive care unit

Akihiro Nakao, Teruyo Ito, Xiao Han, Yu Lu et autres

BACKGROUND: The current data regarding the correlation between the methicillin-resistant Staphylococcus aureus (MRSA) clones carried in the nasal cavity and digestive tract are inadequate. METHODS: MRSA strains were isolated from both the feces and nasal swabs of 21 nasal-MRSA carriers ranging from …

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MRSA Clones Identified in Outpatient Dermatology Clinics

Shino Hosoya, Teruyo Ito, Shigeki Misawa, Takashi Yoshiike et autres

To know the characteristics of methicillin-resistant Staphylococcus aureus (MRSA) strains disseminating through the Japanese community, we have determined types of Staphylococcal cassette chromosome mec (SCCmec) elements, Multi-Locus Sequence Typing (MLST), and carriages of four exotoxin genes (toxic-shock syndrome toxin, Panton-Valentine Leukocidine, and …

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Staphylococcal Cassette Chromosome mec (SCCmec) Analysis of MRSA

Teruyo Ito, Kyoko Kuwahara‐Arai, Yuki Katayama, Yuki Uehara et autres

Methicillin-susceptible S. aureus (MSSA) changes to methicillin-resistant S. aureus upon the acquisition of Staphylococcal Cassette Chromosome mec (SCC mec ), a genomic island that encodes methicillin resistance. All SCC mec elements reported to date share four common characteristics: (1) carrying the mec …

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ST9 MRSA strains carrying a variant of type IX SCCmec identified in the Thai community

Aroonlug Lulitanond, Teruyo Ito, Shanshuang Li, Xiao Han et autres

BACKGROUND: Infections caused by methicillin-resistant Staphylococcus aureus (MRSA) in Thailand occur most frequently in healthcare facilities. However, reports of community-associated MRSA are limited. METHODS: We characterized 14 MRSA isolates from outpatients (O-1 to O-14) by phenotypic and genotypic methods and compared them …

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Analysis of Staphylococcal Cassette Chromosome mec in BD GeneOhm MRSA Assay-Negative Strains

Meng Zhang, Teruyo Ito, Shanshuang Li, Shigeki Misawa et autres

The BD GeneOhm MRSA assay could identify methicillin-resistant Staphylococcus aureus (MRSA) strains at a high ratio (97.8%). Analysis of 11 assay-negative MRSA strains suggested that insertion of non-mec staphylococcal cassette chromosome elements (SCCs) downstream of orfX, and carriage of SCCmecs with a …

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Mobile Genetic Element SCCmec-encoded psm-mec RNA Suppresses Translation of agrA and Attenuates MRSA Virulence

Chikara Kaito, Yuki Saito, Mariko Ikuo, Yosuke Omae et autres

Community acquired-methicillin resistant Staphylococcus aureus (CA-MRSA) is a socially problematic pathogen that infects healthy individuals, causing severe disease. CA-MRSA is more virulent than hospital associated-MRSA (HA-MRSA). The underlying mechanism for the high virulence of CA-MRSA is not known. The transcription product of …

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Comparison of methicillin-resistant Staphylococcus aureus strains isolated in 2003 and 2008 with an emergence of multidrug resistant ST22: SCCmec IV clone in a tertiary hospital, Malaysia

King Ting Lim, Yasmin Abu Hanifah, Mohd Yasim Mohd Yusof, Teruyo Ito et autres

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Molecular characterization of methicillin-resistant Panton-valentine leukocidin positive staphylococcus aureus clones disseminating in Tunisian hospitals and in the community

Ben Jomàa-Jemili Mariem, Teruyo Ito, Meng Zhang, Jingxun Jin et autres

BACKGROUND: The spread of MRSA strains at hospitals as well as in the community are of great concern worldwide. We characterized the MRSA clones isolated at Tunisian hospitals and in the community by comparing them to those isolated in other countries. RESULTS: …

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