M
Masaaki Iwanaga
Researcher at University of the Ryukyus
Publications - 107
Citations - 3267
Masaaki Iwanaga is an academic researcher from University of the Ryukyus. The author has contributed to research in topics: Vibrio cholerae & Pilus. The author has an hindex of 26, co-authored 107 publications receiving 3129 citations. Previous affiliations of Masaaki Iwanaga include Fujita Health University.
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Journal ArticleDOI
Pandemic Spread of an O3:K6 Clone of Vibrio parahaemolyticus and Emergence of Related Strains Evidenced by Arbitrarily Primed PCR and toxRS Sequence Analyses
Chiho Matsumoto,Jun Okuda,Masanori Ishibashi,Masaaki Iwanaga,Pallavi Garg,Thandavarayan Rammamurthy,Hin-Chung Wong,Angelo DePaola,Yung Bu Kim,M. John Albert,Mitsuaki Nishibuchi +10 more
TL;DR: This study presents strong evidence for the first pandemicity in the history of V. parahaemolyticus and reports a novel toxRS-targeted PCR method that will be useful in epidemiological investigation of the cases associated with the current pandemic spread.
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Culture conditions for stimulating cholera toxin production by Vibrio cholerae O1 El Tor.
Masaaki Iwanaga,Koichiro Yamamoto,Naomi Higa,Yoshio Ichinose,Noboru Nakasone,Masao J. Tanabe +5 more
TL;DR: A method that stimulates cholera toxin (CT) production by Vibrio cholerae O1 biotype El Tor (El Tor vibrios) to the level of several micrograms per ml in the culture fluid was established and a large amount of CT was obtained.
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Multiplex PCR assay for identification of human diarrheagenic Escherichia coli.
Claudia Toma,Yan Lu,Naomi Higa,Noboru Nakasone,Isabel Chinen,Ariela Baschkier,Marta Rivas,Masaaki Iwanaga +7 more
TL;DR: This assay allowed the categorization of a diarrheagenic E. coli strain in a single reaction tube and selected targets selected for each category were eae for enteropathogenic E coli, stx for Shiga toxin-producing E. bacteria, and aggR for enteroaggregative E coli.
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Enterotoxicity of El Tor-like hemolysin of non-O1 Vibrio cholerae.
Yoshio Ichinose,Kazuo Yamamoto,Noboru Nakasone,M J Tanabe,T Takeda,Toshio Miwatani,Masaaki Iwanaga +6 more
TL;DR: Results suggest that the hemolysin is an enterotoxic factor that is responsible for non-O1 V. cholerae gastroenteritis.
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Distribution of Putative Adhesins in Different Seropathotypes of Shiga Toxin-Producing Escherichia coli
Claudia Toma,Estela Martínez Espinosa,Tianyan Song,Elizabeth Miliwebsky,Isabel Chinen,Sunao Iyoda,Masaaki Iwanaga,Marta Rivas +7 more
TL;DR: Seropathotype A, which is associated with severe disease and frequently is involved in outbreaks, possesses a unique adhesin profile which is not present in the other seropathotypes and could be a candidate for vaccine development.