Y. Mizuguchi

Publication List Details

Period

2008 - 2008

Number

39

Co-Authors

Substitution Effects on FeSe Superconductor (2008)

Mizuguchi, Y., Tomioka, F., Tsuda, S., Yamaguchi, T., Takano, Y.

We investigated the substitution effects on FeSe system, which has the simplest structure among iron-based superconductors. An enhancement of a superconducting transition temperature Tc was observed...

Growth of superconducting single-crystalline (Lu, Ca)Ba2Cu3O7-d whiskers (2008)

Deguchi, K., Ogawara, S., Okutsu, T., Nagao, M., Watanabe, T., Mizuguchi, Y., ...

Single-crystalline (Lu, Ca)Ba2Cu3O7-d (Lu(Ca)123) whiskers have been successfully grown using the Te-doping method. X-ray diffraction patterns of Lu(Ca)123 whiskers showed sharp (0 0 l) peaks...

Superconductivity in S-substituted FeTe (2008)

Mizuguchi, Y., Tomioka, F., Tsuda, S., Yamaguchi, T., Takano, Y.

We have successfully synthesized a new superconducting phase of FeTe1-xSx with a PbO-type structure. It has the simplest crystal structure in iron-based superconductors. Superconducting transition...

FeTe as a candidate material for new iron-based superconductor (2008)

Mizuguchi, Y., Tomioka, F., Tsuda, S., Yamaguchi, T., Takano, Y.

Tetragonal FeSe is a superconductor with a transition temperature Tc of 8 K and shows a huge enhancement of Tc with applying pressure. Tetragonal FeTe has a structure very analogous to...

Evidence for Unconventional Superconductivity in Arsenic-Free Iron-Based Superconductor FeSe : A ^77Se-NMR Study (2008)

Kotegawa, H., Masaki, S., Awai, Y., Tou, H., Mizuguchi, Y., Takano, Y.

We report the results of $^{77}$Se--nuclear magnetic resonance (NMR) in $\alpha$-FeSe, which exhibits a similar crystal structure to the LaFeAsO$_{1-x}$F$_x$ superconductor and shows...

Crystal structure of the new FeSe1-x superconductor (2008)

Margadonna, S., Takabayashi, Y., McDonald, M. T., Kasperkiewicz, K., Mizuguchi, Y., Takano, Y., ...

The newly discovered superconductor FeSe1-x (x=0.08, Tconset=13.5 K at ambient pressure rising to 27 K at 1.48 GPa) exhibits a structural phase transition from tetragonal to orthorhombic below 70 K...

Molecular analysis of kanamycin and viomycin resistance in Mycobacterium smegmatis by use of the conjugation system.

Taniguchi, H, Chang, B, Abe, C, Nikaido, Y, Mizuguchi, Y, Yoshida, S I

We examined the molecular mechanisms of resistance to kanamycin and viomycin in Mycobacterium smegmatis. All of the M. smegmatis strains with high-level kanamycin resistance had a nucleotide...

Morphological changes induced by beta-lactam antibiotics in Mycobacterium avium-intracellulare complex.

Mizuguchi, Y, Ogawa, M, Udou, T

In vitro activity of seven beta-lactam antibiotics against strains of Mycobacterium avium-intracellulare was evaluated by the agar dilution method. The activity was influenced by the presence or...

2-Deoxy-D-glucose inhibits intracellular multiplication and promotes intracellular killing of Legionella pneumophila in A/J mouse macrophages.

Ogawa, M, Yoshida, S, Mizuguchi, Y

Legionella pneumophila can grow intracellularly in A/J mouse macrophages. 2-Deoxy-D-glucose (2dG) (0.1, 1, and 10 mM) inhibited intracellular multiplication and promoted intracellular killing of L....

Analysis of the replication region of a mycobacterial plasmid, pMSC262.

Qin, M, Taniguchi, H, Mizuguchi, Y

We determined the nucleotide sequence of a DNA fragment which contains the replication region of pMSC262, a Mycobacterium scrofulaceum plasmid used to construct the Mycobacterium-Escherichia coli...

Plasmid deoxyribonucleic acid and translucent-to-opaque variation in Mycobacterium intracellulare 103.

Mizuguchi, Y, Fukunaga, M, Taniguchi, H

After treatment with mitomycin D and other antibacterial agents, a translucent, smooth-colony-forming mycobacterium, isolated from sputum and designated as Mycobacterium intracellulare strain 103,...

Cloning and expression in Escherichia coli of Vibrio parahaemolyticus thermostable direct hemolysin and thermolabile hemolysin genes.

Taniguchi, H, Ohta, H, Ogawa, M, Mizuguchi, Y

Two hemolysin genes of Vibrio parahaemolyticus WP1, a thermostable direct (TSD) hemolysin gene and a thermolabile hemolysin gene, were cloned into the pBR322 vector in Escherichia coli K-12 C600. A...

Spheroplast formation of Mycobacterium smegmatis and morphological aspects of their reversion to the bacillary form.

Udou, T, Ogawa, M, Mizuguchi, Y

Cell wall-deficient forms (spheroplasts) of Mycobacterium smegmatis strain P53 were prepared by combined treatment with glycine, lysozyme, and lytic enzyme no. 2 as the spheroplasting agents....

Protective effects of a leukotriene inhibitor and a leukotriene antagonist on endotoxin-induced mortality in carrageenan-pretreated mice.

Ogata, M, Matsumoto, T, Kamochi, M, Yoshida, S I, Mizuguchi, Y, Shigematsu, A

The leukotrienes and tumor necrosis factor (TNF) play an important role in the pathophysiology of septic shock, in which hypotension, leukopenia, thrombocytopenia, and hemoconcentration are observed....

Genetic control of natural resistance in mouse macrophages regulating intracellular Legionella pneumophila multiplication in vitro.

Yoshida, S, Goto, Y, Mizuguchi, Y, Nomoto, K, Skamene, E

It is known that Legionella pneumophila proliferates in peritoneal macrophage cultures derived from A/J mice but not in macrophage cultures derived from many other strains, including C57BL/6 mice. To...

Enhancement of lipopolysaccharide-induced tumor necrosis factor production in mice by carrageenan pretreatment.

Ogata, M, Yoshida, S, Kamochi, M, Shigematsu, A, Mizuguchi, Y

Tumor necrosis factor (TNF) is a cytokine which mediates endotoxin shock and causes multiple organ damage. It is thought that macrophage (MP) activation is necessary to increase lipopolysaccharide...

Macrophage-activating T-cell factor(s) produced in an early phase of Legionella pneumophila infection in guinea pigs.

Nikaido, Y, Yoshida, S, Goto, Y, Mizuguchi, Y, Kuroiwa, A

Protective immunity of guinea pigs against Legionella pneumophila was studied by infecting the animals with a sublethal dose (about 2 x 10(4) CFU) of the organism. The bacteria multiplied in the...

Fate of Legionella pneumophila Philadelphia-1 strain in resident, elicited, activated, and immune peritoneal macrophages of guinea pigs.

Yoshida, S, Mizuguchi, Y, Nikaido, Y, Mitsuyama, M, Nomoto, K

Legionella pneumophila is known to grow intracellularly in resident peritoneal macrophages of guinea pigs. The present study was done to determine what kinds of macrophage stimulants are able to...

Relation of capsular materials and colony opacity to virulence of Vibrio vulnificus.

Yoshida, S, Ogawa, M, Mizuguchi, Y

Colonies which varied in opacity were isolated from the four strains of Vibrio vulnificus. Opaque and translucent colonial types of the strains were distinguished from the corresponding parent...

Salt-induced filamentous growth of a Salmonella strain isolated from blood.

Yoshida, S, Udou, T, Mizuguchi, Y, Tanabe, T

A strain of Salmonella choleraesuis subsp. choleraesuis serovar paratyphi-A isolated from the blood of a febrile patient grew into filaments on a nutrient agar containing various salts, such as NaCl,...

Lipopolysaccharide and granulocyte colony-stimulating factor delay neutrophil apoptosis and ingestion by guinea pig macrophages.

Yamamoto, C, Yoshida, S, Taniguchi, H, Qin, M H, Miyamoto, H, Mizuguchi, Y

In previous studies, neutrophil-ingesting macrophages were clearly and easily observed in the peritoneal cavity of guinea pigs after intraperitoneal injection of thioglycolate medium, and...

Direct evidence of neuron impairment by oral infection with verotoxin-producing Escherichia coli O157:H- in mitomycin-treated mice.

Fujii, J, Kita, T, Yoshida, S, Takeda, T, Kobayashi, H, Tanaka, N, ...

We developed a mouse model of acute encephalopathy induced by verotoxin 2 variant (VT2v)-producing Escherichia coli. Three-week-old mice were inoculated intragastrically with approximately 10(10) CFU...

Molecular analysis of kanamycin and viomycin resistance in Mycobacterium smegmatis by use of the conjugation system.

Taniguchi, H, Chang, B, Abe, C, Nikaido, Y, Mizuguchi, Y, Yoshida, S I

We examined the molecular mechanisms of resistance to kanamycin and viomycin in Mycobacterium smegmatis. All of the M. smegmatis strains with high-level kanamycin resistance had a nucleotide...

Morphological changes induced by beta-lactam antibiotics in Mycobacterium avium-intracellulare complex.

Mizuguchi, Y, Ogawa, M, Udou, T

In vitro activity of seven beta-lactam antibiotics against strains of Mycobacterium avium-intracellulare was evaluated by the agar dilution method. The activity was influenced by the presence or...

2-Deoxy-D-glucose inhibits intracellular multiplication and promotes intracellular killing of Legionella pneumophila in A/J mouse macrophages.

Ogawa, M, Yoshida, S, Mizuguchi, Y

Legionella pneumophila can grow intracellularly in A/J mouse macrophages. 2-Deoxy-D-glucose (2dG) (0.1, 1, and 10 mM) inhibited intracellular multiplication and promoted intracellular killing of L....

Analysis of the replication region of a mycobacterial plasmid, pMSC262.

Qin, M, Taniguchi, H, Mizuguchi, Y

We determined the nucleotide sequence of a DNA fragment which contains the replication region of pMSC262, a Mycobacterium scrofulaceum plasmid used to construct the Mycobacterium-Escherichia coli...

Plasmid deoxyribonucleic acid and translucent-to-opaque variation in Mycobacterium intracellulare 103.

Mizuguchi, Y, Fukunaga, M, Taniguchi, H

After treatment with mitomycin D and other antibacterial agents, a translucent, smooth-colony-forming mycobacterium, isolated from sputum and designated as Mycobacterium intracellulare strain 103,...

Cloning and expression in Escherichia coli of Vibrio parahaemolyticus thermostable direct hemolysin and thermolabile hemolysin genes.

Taniguchi, H, Ohta, H, Ogawa, M, Mizuguchi, Y

Two hemolysin genes of Vibrio parahaemolyticus WP1, a thermostable direct (TSD) hemolysin gene and a thermolabile hemolysin gene, were cloned into the pBR322 vector in Escherichia coli K-12 C600. A...

Spheroplast formation of Mycobacterium smegmatis and morphological aspects of their reversion to the bacillary form.

Udou, T, Ogawa, M, Mizuguchi, Y

Cell wall-deficient forms (spheroplasts) of Mycobacterium smegmatis strain P53 were prepared by combined treatment with glycine, lysozyme, and lytic enzyme no. 2 as the spheroplasting agents....

Protective effects of a leukotriene inhibitor and a leukotriene antagonist on endotoxin-induced mortality in carrageenan-pretreated mice.

Ogata, M, Matsumoto, T, Kamochi, M, Yoshida, S I, Mizuguchi, Y, Shigematsu, A

The leukotrienes and tumor necrosis factor (TNF) play an important role in the pathophysiology of septic shock, in which hypotension, leukopenia, thrombocytopenia, and hemoconcentration are observed....

Genetic control of natural resistance in mouse macrophages regulating intracellular Legionella pneumophila multiplication in vitro.

Yoshida, S, Goto, Y, Mizuguchi, Y, Nomoto, K, Skamene, E

It is known that Legionella pneumophila proliferates in peritoneal macrophage cultures derived from A/J mice but not in macrophage cultures derived from many other strains, including C57BL/6 mice. To...

Enhancement of lipopolysaccharide-induced tumor necrosis factor production in mice by carrageenan pretreatment.

Ogata, M, Yoshida, S, Kamochi, M, Shigematsu, A, Mizuguchi, Y

Tumor necrosis factor (TNF) is a cytokine which mediates endotoxin shock and causes multiple organ damage. It is thought that macrophage (MP) activation is necessary to increase lipopolysaccharide...

Macrophage-activating T-cell factor(s) produced in an early phase of Legionella pneumophila infection in guinea pigs.

Nikaido, Y, Yoshida, S, Goto, Y, Mizuguchi, Y, Kuroiwa, A

Protective immunity of guinea pigs against Legionella pneumophila was studied by infecting the animals with a sublethal dose (about 2 x 10(4) CFU) of the organism. The bacteria multiplied in the...

Fate of Legionella pneumophila Philadelphia-1 strain in resident, elicited, activated, and immune peritoneal macrophages of guinea pigs.

Yoshida, S, Mizuguchi, Y, Nikaido, Y, Mitsuyama, M, Nomoto, K

Legionella pneumophila is known to grow intracellularly in resident peritoneal macrophages of guinea pigs. The present study was done to determine what kinds of macrophage stimulants are able to...

Relation of capsular materials and colony opacity to virulence of Vibrio vulnificus.

Yoshida, S, Ogawa, M, Mizuguchi, Y

Colonies which varied in opacity were isolated from the four strains of Vibrio vulnificus. Opaque and translucent colonial types of the strains were distinguished from the corresponding parent...

Salt-induced filamentous growth of a Salmonella strain isolated from blood.

Yoshida, S, Udou, T, Mizuguchi, Y, Tanabe, T

A strain of Salmonella choleraesuis subsp. choleraesuis serovar paratyphi-A isolated from the blood of a febrile patient grew into filaments on a nutrient agar containing various salts, such as NaCl,...

Lipopolysaccharide and granulocyte colony-stimulating factor delay neutrophil apoptosis and ingestion by guinea pig macrophages.

Yamamoto, C, Yoshida, S, Taniguchi, H, Qin, M H, Miyamoto, H, Mizuguchi, Y

In previous studies, neutrophil-ingesting macrophages were clearly and easily observed in the peritoneal cavity of guinea pigs after intraperitoneal injection of thioglycolate medium, and...

Direct evidence of neuron impairment by oral infection with verotoxin-producing Escherichia coli O157:H- in mitomycin-treated mice.

Fujii, J, Kita, T, Yoshida, S, Takeda, T, Kobayashi, H, Tanaka, N, ...

We developed a mouse model of acute encephalopathy induced by verotoxin 2 variant (VT2v)-producing Escherichia coli. Three-week-old mice were inoculated intragastrically with approximately 10(10) CFU...

Antibiotic sensitivity patterns of penicillinase-positive and penicillinase-negative strains of Neisseria gonorrhoeae isolated in Fukuoka, Japan.

Yoshida, S, Urabe, S, Mizuguchi, Y

Penicillinase production and minimum inhibitory concentrations (MICs) of penicillin G, amoxycillin, doxycycline, and spectinomycin were studied for 155 gonococcal strains isolated in Fukuoka, Japan,...