Ken-Ichi Amano

Expression of histo-blood group antigens by lipopolysaccharides of Helicobacter pylori strains from Asian hosts: the propensity to express type 1 blood-group antigens (2000)

Monteiro, Mario A., Zheng, Peng-yuan, Ho, Bow, Yokota, Shin-ichi, Amano, Ken-ichi, Pan, Zhi-jun, ...

Past studies have shown that the cell surface lipopolysaccharides (LPSs) of the ubiquitous human gastric pathogen Helicobacter pylori (a type 1 carcinogen) isolated from people residing in Europe and...

Structural Requirements of Endotoxic Glycolipid for Antitumor and Toxic Activity (1983)

AMANO, Ken-ichi, RIBI, Edgar, CANTRELL, John L.

Endotoxic glycolipids extracted from the polysaccharide heptose-less Re mutant of Salmonella typhimurium were hydrolyzed with alkaline and acid reagents. Treatment with hydroxylamine caused the...

Partial Characterization of Peptidoglycan-Associated Proteins of Legionella pneumophila (1983)

AMANO, Ken-ichi, WILLIAMS, Jim C.

The proteins associated with the peptidoglycan (PG) of Legionella pneumophila are resistant to proteolysis by trypsin, protease VI and proteinase K. These protease-resistant proteins are associated...

Two Distinct Antigenic Types of the Polysaccharide Chains of Helicobacter pylori Lipopolysaccharides Characterized by Reactivity with Sera from Humans with Natural Infection

Yokota, Shin-Ichi, Amano, Ken-Ichi, Shibata, Yoshiko, Nakajima, Mizuho, Suzuki, Miyuki, Hayashi, Shunji, ...

We have purified lipopolysaccharides (LPS) from 10 Helicobacter pylori clinical isolates which were selected on the basis of chemotype and antigenic variation. Data from immunoblotting of the...

Effect of Rebamipide, a Novel Antiulcer Agent, on Helicobacter pylori Adhesion to Gastric Epithelial Cells

Hayashi, Shunji, Sugiyama, Toshiro, Amano, Ken-Ichi, Isogai, Hiroshi, Isogai, Emiko, Aihara, Miki, ...

Helicobacter pylori is a major etiological agent in gastroduodenal disorders. The adhesion of H. pylori to human gastric epithelial cells is the initial step of H. pylori infection. Inhibition of H....

Structural Properties of Lipopolysaccharides from Rickettsia typhi and Rickettsia prowazekii and Their Chemical Similarity to the Lipopolysaccharide from Proteus vulgaris OX19 Used in the Weil-Felix Test

Amano, Ken-ichi, Williams, Jim C., Dasch, Gregory A.

The lipopolysaccharides (LPSs) isolated from typhus group (TG) rickettsiae Rickettsia typhi and Rickettsia prowazekii were characterized by chemical analysis and sodium dodecyl sulfate-polyacrylamide...

Human Antibody Response to Helicobacter pylori Lipopolysaccharide: Presence of an Immunodominant Epitope in the Polysaccharide Chain of Lipopolysaccharide

Yokota, Shin-ichi, Amano, Ken-ichi, Hayashi, Shunji, Kubota, Toru, Fujii, Nobuhiro, Yokochi, Takashi

We have examined the antibody response to Helicobacter pylori lipopolysaccharides (LPS) in humans. We used sera from patients with gastroduodenal diseases and healthy adults infected or not infected...

Characterization of Enteropathogenic and Enteroaggregative Escherichia coli Isolated from Diarrheal Outbreaks

Yatsuyanagi, Jun, Saito, Shioko, Sato, Hiroyasu, Miyajima, Yoshimichi, Amano, Ken-Ichi, Enomoto, Katsuhiko

Virulence characteristics of diarrheal outbreak-associated Escherichia coli O55:NM, O126:NM, and O111:NM were examined. The E. coli O55:NM strains were atypical enteropathogenic E. coli (EPEC), while...

Use of Monoclonal Antibodies to Lipopolysaccharide for Antigenic Analysis of Coxiella burnetii

Hotta, Akitoyo, Kawamura, Midori, To, Ho, Andoh, Masako, Yamaguchi, Tsuyoshi, Fukushi, Hideto, ...

Antigenic differences among Coxiella burnetii strains were analyzed. The monoclonal antibodies against the lipopolysaccharide outer core did not react with the strains containing a QpRS plasmid or...

Characterization of Atypical Enteropathogenic Escherichia coli Strains Harboring the astA Gene That Were Associated with a Waterborne Outbreak of Diarrhea in Japan

Yatsuyanagi, Jun, Saito, Shioko, Miyajima, Yoshimichi, Amano, Ken-Ichi, Enomoto, Katsuhiko

The virulence traits of the Escherichia coli strain associated with a waterborne diarrhea outbreak were examined. Forty-one of 75 students (ages 12 to 15) in Akita Prefecture, Japan, showed clinical...

Class 1 Integron Containing Metallo-β-Lactamase Gene blaVIM-2 in Pseudomonas aeruginosa Clinical Strains Isolated in Japan

Yatsuyanagi, Jun, Saito, Shioko, Harata, Seizaburo, Suzuki, Noriyuki, Ito, Yuko, Amano, Ken-ichi, ...

Four blaVIM-2 gene-harboring Pseudomonas aeruginosa strains were identified. These strains possessed a class 1 integron harboring ORF1, blaVIM-2, and aacA4 gene cassettes. The transposon-mediated...

Two Distinct Antigenic Types of the Polysaccharide Chains of Helicobacter pylori Lipopolysaccharides Characterized by Reactivity with Sera from Humans with Natural Infection

Yokota, Shin-Ichi, Amano, Ken-Ichi, Shibata, Yoshiko, Nakajima, Mizuho, Suzuki, Miyuki, Hayashi, Shunji, ...

We have purified lipopolysaccharides (LPS) from 10 Helicobacter pylori clinical isolates which were selected on the basis of chemotype and antigenic variation. Data from immunoblotting of the...

Effect of Rebamipide, a Novel Antiulcer Agent, on Helicobacter pylori Adhesion to Gastric Epithelial Cells

Hayashi, Shunji, Sugiyama, Toshiro, Amano, Ken-Ichi, Isogai, Hiroshi, Isogai, Emiko, Aihara, Miki, ...

Helicobacter pylori is a major etiological agent in gastroduodenal disorders. The adhesion of H. pylori to human gastric epithelial cells is the initial step of H. pylori infection. Inhibition of H....

Structural Properties of Lipopolysaccharides from Rickettsia typhi and Rickettsia prowazekii and Their Chemical Similarity to the Lipopolysaccharide from Proteus vulgaris OX19 Used in the Weil-Felix Test

Amano, Ken-ichi, Williams, Jim C., Dasch, Gregory A.

The lipopolysaccharides (LPSs) isolated from typhus group (TG) rickettsiae Rickettsia typhi and Rickettsia prowazekii were characterized by chemical analysis and sodium dodecyl sulfate-polyacrylamide...

Human Antibody Response to Helicobacter pylori Lipopolysaccharide: Presence of an Immunodominant Epitope in the Polysaccharide Chain of Lipopolysaccharide

Yokota, Shin-ichi, Amano, Ken-ichi, Hayashi, Shunji, Kubota, Toru, Fujii, Nobuhiro, Yokochi, Takashi

We have examined the antibody response to Helicobacter pylori lipopolysaccharides (LPS) in humans. We used sera from patients with gastroduodenal diseases and healthy adults infected or not infected...

Characterization of Enteropathogenic and Enteroaggregative Escherichia coli Isolated from Diarrheal Outbreaks

Yatsuyanagi, Jun, Saito, Shioko, Sato, Hiroyasu, Miyajima, Yoshimichi, Amano, Ken-Ichi, Enomoto, Katsuhiko

Virulence characteristics of diarrheal outbreak-associated Escherichia coli O55:NM, O126:NM, and O111:NM were examined. The E. coli O55:NM strains were atypical enteropathogenic E. coli (EPEC), while...

Use of Monoclonal Antibodies to Lipopolysaccharide for Antigenic Analysis of Coxiella burnetii

Hotta, Akitoyo, Kawamura, Midori, To, Ho, Andoh, Masako, Yamaguchi, Tsuyoshi, Fukushi, Hideto, ...

Antigenic differences among Coxiella burnetii strains were analyzed. The monoclonal antibodies against the lipopolysaccharide outer core did not react with the strains containing a QpRS plasmid or...

Characterization of Atypical Enteropathogenic Escherichia coli Strains Harboring the astA Gene That Were Associated with a Waterborne Outbreak of Diarrhea in Japan

Yatsuyanagi, Jun, Saito, Shioko, Miyajima, Yoshimichi, Amano, Ken-Ichi, Enomoto, Katsuhiko

The virulence traits of the Escherichia coli strain associated with a waterborne diarrhea outbreak were examined. Forty-one of 75 students (ages 12 to 15) in Akita Prefecture, Japan, showed clinical...

Class 1 Integron Containing Metallo-β-Lactamase Gene blaVIM-2 in Pseudomonas aeruginosa Clinical Strains Isolated in Japan

Yatsuyanagi, Jun, Saito, Shioko, Harata, Seizaburo, Suzuki, Noriyuki, Ito, Yuko, Amano, Ken-ichi, ...

Four blaVIM-2 gene-harboring Pseudomonas aeruginosa strains were identified. These strains possessed a class 1 integron harboring ORF1, blaVIM-2, and aacA4 gene cassettes. The transposon-mediated...