Yoshiyuki Ito

Helicobacter pylori Evolution: Lineage- Specific Adaptations in Homologs of Eukaryotic Sel1-Like Genes (2007)

Masako Ogura, J. Christian Perez, Hae-Kyung Lee, Geidrius Dailide, Shumin Tan, ...

Geographic partitioning is postulated to foster divergence of Helicobacter pylori populations as an adaptive response to local differences in predominant host physiology. H. pylori's ability to...

Helicobacter pylori Evolution: Lineage-Specific Adaptations in Homologs of Eukaryotic Sel1-Like Genes (2007)

Masako Ogura, Christian Perez, Peer Mittl, Hae-Kyung Lee, Geidrius Dailide, Shumin Tan, ...

Geographic partitioning is postulated to foster divergence of Helicobacter pylori populations as an adaptive response to local differences in predominant host physiology. H. pylori's ability to...

Elective neck irradiation on ipsilateral side in patients with early tongue cancer for high-risk group with late cervical lymph node metastasis (2006)

Ito, Yoshiyuki, Fuwa, Nobukazu, Kikuchi, Yuzo, Yokoi, Norio, Hamajima, Nobuyuki, Morita, Kozo, ...

A prospective study was performed to assess the effi cacy of elective neck irradiation (ENI) on the ipsilateral side in patients with early tongue cancer among a high-risk group with late cervical...

A quantum Monte Carlo algorithm realizing an intrinsic relaxation (2003)

Nakamura, Tota, Ito, Yoshiyuki

We propose a new quantum Monte Carlo algorithm which realizes a relaxation intrinsic to the original quantum system. The Monte Carlo dynamics satisfies the dynamic scaling relation $\tau\sim \xi^z$...

Sequence Analysis and Clinical Significance of the iceA Gene from Helicobacter pylori Strains in Japan

Ito, Yoshiyuki, Azuma, Takeshi, Ito, Shigeji, Suto, Hiroyuki, Miyaji, Hideki, Yamazaki, Yukinao, ...

The Helicobacter pylori iceA gene was recently identified as a genetic marker for the development of peptic ulcer in a Western population. To assess the significance of iceA subtypes of H. pylori in...

Distinctiveness of Genotypes of Helicobacter pylori in Calcutta, India

Mukhopadhyay, Asish K., Kersulyte, Dangeruta, Jeong, Jin-Yong, Datta, Simanti, Ito, Yoshiyuki, Chowdhury, Abhijit, ...

The genotypes of 78 strains of Helicobacter pylori from Calcutta, India (55 from ulcer patients and 23 from more-benign infections), were studied, with a focus on putative virulence genes and neutral...

Sequential Inactivation of rdxA (HP0954) and frxA (HP0642) Nitroreductase Genes Causes Moderate and High-Level Metronidazole Resistance in Helicobacter pylori

Jeong, Jin-Yong, Mukhopadhyay, Asish K., Dailidiene, Daiva, Wang, Yipeng, Velapatiño, Billie, Gilman, Robert H., ...

Helicobacter pylori is a human-pathogenic bacterial species that is subdivided geographically, with different genotypes predominating in different parts of the world. Here we test and extend an...

Transposable Element ISHp608 of Helicobacter pylori: Nonrandom Geographic Distribution, Functional Organization, and Insertion Specificity

Kersulyte, Dangeruta, Velapatiño, Billie, Dailide, Giedrius, Mukhopadhyay, Asish K., Ito, Yoshiyuki, Cahuayme, Lizbeth, ...

A new member of the IS605 transposable element family, designated ISHp608, was found by subtractive hybridization in Helicobacter pylori. Like the three other insertion sequences (ISs) known in this...

thyA as a Selection Marker in Construction of Food-Grade Host-Vector and Integration Systems for Streptococcus thermophilus

Sasaki, Yasuko, Ito, Yoshiyuki, Sasaki, Takashi

We constructed food-grade host-vector and integration systems for Streptococcus thermophilus by using a thymidylate synthase gene (thyA) as the selection marker. Two thyA genes, thyASt and thyALb,...

Distinct Diversity of the cag Pathogenicity Island among Helicobacter pylori Strains in Japan

Azuma, Takeshi, Yamakawa, Akiyo, Yamazaki, Shiho, Ohtani, Masahiro, Ito, Yoshiyuki, Muramatsu, Atsushi, ...

The severity of Helicobacter pylori-related disease is correlated with the presence of a cag pathogenicity island (PAI). Genetic diversity within the cag PAI may have a modifying effect on the...

Distinct Diversity of vacA, cagA, and cagE Genes of Helicobacter pylori Associated with Peptic Ulcer in Japan

Yamazaki, Shiho, Yamakawa, Akiyo, Okuda, Tomoyuki, Ohtani, Masahiro, Suto, Hiroyuki, Ito, Yoshiyuki, ...

Colonization of the stomach mucosa by Helicobacter pylori is a major cause of acute and chronic gastric pathologies in humans. Several H. pylori virulence genes that may play a role in its...

Sequence Analysis and Clinical Significance of the iceA Gene from Helicobacter pylori Strains in Japan

Ito, Yoshiyuki, Azuma, Takeshi, Ito, Shigeji, Suto, Hiroyuki, Miyaji, Hideki, Yamazaki, Yukinao, ...

The Helicobacter pylori iceA gene was recently identified as a genetic marker for the development of peptic ulcer in a Western population. To assess the significance of iceA subtypes of H. pylori in...

Distinctiveness of Genotypes of Helicobacter pylori in Calcutta, India

Mukhopadhyay, Asish K., Kersulyte, Dangeruta, Jeong, Jin-Yong, Datta, Simanti, Ito, Yoshiyuki, Chowdhury, Abhijit, ...

The genotypes of 78 strains of Helicobacter pylori from Calcutta, India (55 from ulcer patients and 23 from more-benign infections), were studied, with a focus on putative virulence genes and neutral...

Sequential Inactivation of rdxA (HP0954) and frxA (HP0642) Nitroreductase Genes Causes Moderate and High-Level Metronidazole Resistance in Helicobacter pylori

Jeong, Jin-Yong, Mukhopadhyay, Asish K., Dailidiene, Daiva, Wang, Yipeng, Velapatiño, Billie, Gilman, Robert H., ...

Helicobacter pylori is a human-pathogenic bacterial species that is subdivided geographically, with different genotypes predominating in different parts of the world. Here we test and extend an...

Transposable Element ISHp608 of Helicobacter pylori: Nonrandom Geographic Distribution, Functional Organization, and Insertion Specificity

Kersulyte, Dangeruta, Velapatiño, Billie, Dailide, Giedrius, Mukhopadhyay, Asish K., Ito, Yoshiyuki, Cahuayme, Lizbeth, ...

A new member of the IS605 transposable element family, designated ISHp608, was found by subtractive hybridization in Helicobacter pylori. Like the three other insertion sequences (ISs) known in this...

thyA as a Selection Marker in Construction of Food-Grade Host-Vector and Integration Systems for Streptococcus thermophilus

Sasaki, Yasuko, Ito, Yoshiyuki, Sasaki, Takashi

We constructed food-grade host-vector and integration systems for Streptococcus thermophilus by using a thymidylate synthase gene (thyA) as the selection marker. Two thyA genes, thyASt and thyALb,...

Distinct Diversity of the cag Pathogenicity Island among Helicobacter pylori Strains in Japan

Azuma, Takeshi, Yamakawa, Akiyo, Yamazaki, Shiho, Ohtani, Masahiro, Ito, Yoshiyuki, Muramatsu, Atsushi, ...

The severity of Helicobacter pylori-related disease is correlated with the presence of a cag pathogenicity island (PAI). Genetic diversity within the cag PAI may have a modifying effect on the...

Distinct Diversity of vacA, cagA, and cagE Genes of Helicobacter pylori Associated with Peptic Ulcer in Japan

Yamazaki, Shiho, Yamakawa, Akiyo, Okuda, Tomoyuki, Ohtani, Masahiro, Suto, Hiroyuki, Ito, Yoshiyuki, ...

Colonization of the stomach mucosa by Helicobacter pylori is a major cause of acute and chronic gastric pathologies in humans. Several H. pylori virulence genes that may play a role in its...

Helicobacter pylori Evolution: Lineage- Specific Adaptations in Homologs of Eukaryotic Sel1-Like Genes

Ogura, Masako, Perez, J. Christian, Mittl, Peer R. E, Lee, Hae-Kyung, Dailide, Geidrius, Tan, Shumin, ...

Geographic partitioning is postulated to foster divergence of Helicobacter pylori populations as an adaptive response to local differences in predominant host physiology. H. pylori's ability to...

Helicobacter pylori Caga Protein Can Be Tyrosine Phosphorylated in Gastric Epithelial Cells

Asahi, Momoyo, Azuma, Takeshi, Ito, Shigeji, Ito, Yoshiyuki, Suto, Hiroyuki, Nagai, Yukifumi, ...

Attachment of Helicobacter pylori to gastric epithelial cells induces various cellular responses, including the tyrosine phosphorylation of an unknown 145-kD protein and interleukin 8 production....