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Journals and Conferences
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A multiplex polymerase chain reaction (PCR) assay was developed for the identification of Salmonella enterica serovar Typhimurium. Three sets of primers were designed for detecting O4, H:i, and H:1,2 antigen genes from the antigen-specific genes rfbJ, fliC, and fljB, respectively. These were evaluated in a multiplex PCR assay by using DNAs from S. enterica… (More)
A total of 54 Vibrio parahaemolyticus strains including pandemic O3:K6 strains and newly emerged O4:K68, O1:K25, O1:K26, and O1:K untypeable strains (collectively referred to as the "pandemic group") were examined for their pulsed-field gel electrophoresis (PFGE) and arbitrarily primed PCR (AP-PCR) profiles and for the presence or absence of genetic marker… (More)
In order to investigate the relationship between renal failure and hearing loss, the authors made a guinea pig model with experimentally induced renal failure and examined cochlear potentials (N1, CM and EP). When renal damage was greater, the amplitudes of N1 and CM were decreased and the latency of N1 was prolonged, but EP was within normal range. The… (More)
Pandemic V. parahaemolyticus strains have rapidly changed their serotypes, but its determinants, especially K antigen, and the genes involved in serotype have been an open question. The purpose of this study was to gain insights into these points. Although V. parahaemolyticus is known to be lacking O-side chain on its lipopolysaccharide, and O antigens are… (More)
A multiplex PCR assay was developed based on atpA-sequence diversification for molecular identification of 3 major pathogenic Vibrio species: Vibrio cholerae, Vibrio parahaemolyticus, and Vibrio vulnificus. It specifically identified them from among 133 strains of various Vibrio species and other genera, and was applicable for testing seawater, suggesting… (More)
We developed a polymerase chain reaction method in order to detect and identify both Yersinia pseudotuberculosis and pathogenic Yersinia enterocolitica. Polymerase chain reaction was performed by using a mixture of primers against the inv gene from Y. pseudotuberculosis and the ail gene from pathogenic Y. enterocolitica. Further addition of primers against… (More)
Sixty-seven Vibrio cholerae O1 El Tor isolates (36 domestic and 31 imported) were classified into 19 subtypes by NotI- and SfiI-digested pulsed-field gel electrophoresis. Twenty-five of 36 domestic and 4 imported isolates were assigned to a NotI-A1-SfiI-A1 subtype, suggesting that this pulse type is widely distributed in Asia and Japan.
A mismatch amplification mutation PCR assay was developed and validated for rapid detection of the biotype specific cholera toxin B subunit of V. cholerae O1. This assay will enable easy monitoring of the spread of a new emerging variant of the El Tor biotype of V. cholerae O1.
Vibrio cholerae is an aetiological agent of cholera that inhabits marine and estuarine environments. It can survive harsh environments by entering the viable but non-culturable (VBNC) state, but the related changes in gene expression have not been described. Here, we experimentally induced the VBNC state in V. cholerae O1, by incubation in artificial… (More)
A PCR-based assay to identify pandemic group Vibrio parahaemolyticus has been developed. The assay employs an oligonucleotide primer pair derived from the group-specific sequence of an arbitrarily primed-PCR fragment, which is located in the genome encoding a "hypothetical protein," approximately 80% homologous to the Mn2+ and Fe2+ transporter of the NRAMP… (More)