Y. Isayama

Decrease in antimicrobial susceptibility of Bordetella bronchiseptica caused by antigenic modulation and phase variation.

Ishikawa, H, Isayama, Y, Ohmae, K

The susceptibilities to 20 antimicrobial agents of Bordetella bronchiseptica variants in C mode and degraded phases were compared with those of their parents in X mode. Increases in MICs of 4- to...

In vitro susceptibility of Haemophilus somnus to 33 antimicrobial agents.

Sugimoto, C, Mitani, K, Nakazawa, M, Sekizaki, T, Terakado, N, Isayama, Y

Minimal inhibitory concentrations of 33 antimicrobial agents for Haemophilus somnus were determined by the agar dilution method. The tested H. somnus strains were highly susceptible to penicillin G,...

Evidence for sialyl glycoconjugates as receptors for Bordetella bronchiseptica on swine nasal mucosa.

Ishikawa, H, Isayama, Y

The nature of the receptors for Bordetella bronchiseptica was investigated by using the in vitro adherence assay system. The results indicated that sialyl glycoconjugates acted as receptors on swine...

Bordetella bronchiseptica phase variation induced by crystal violet.

Ishikawa, H, Isayama, Y

A method for effective induction of phase variation in Bordetella bronchiseptica by treatment with crystal violet (CV) is presented. When grown in CV-broth, phase I cells dissociated into three...

Cellular fatty acid composition of Haemophilus equigenitalis.

Sugimoto, C, Miyagawa, E, Mitani, K, Nakazawa, M, Isayama, Y

The cellular fatty acid composition of eight Haemophilus equigenitalis strains was determined by gas-liquid chromatography. All strains showed a grossly similar pattern characterized by large amounts...

Crystal violet staining of Bordetella bronchiseptica colonies for differentiation of phase-I strains from variant strains in degraded phases.

Ishikawa, H, Isayama, Y

After 2 days of growth on Brain heart infusion agar (BHIA) at 38 degrees C, phase-I colonies and degraded-phase colonies of Bordetella bronchiseptica could be differentiated by their ability to take...

Perivascular eosinophilic droplets in swine brain induced by Escherichia coli toxin.

Nakamura, K, Kashiwazaki, M, Isayama, Y, Shoya, S

Pigs inoculated intravenously with the culture supernatant and extract of Escherichia coli were investigated histologically. Perivascular eosinophilic droplets and slight vascular degeneration were...

Hydrophobic surface properties of Bordetella bronchiseptica X-mode cells and their possible role in adherence to porcine nasal mucosa.

Ishikawa, H, Isayama, Y

Bordetella bronchiseptica strains were examined to determine whether the surface hydrophobicity of the bacteria correlates with their adherence to porcine nasal epithelial cells. The relative...

Decrease in antimicrobial susceptibility of Bordetella bronchiseptica caused by antigenic modulation and phase variation.

Ishikawa, H, Isayama, Y, Ohmae, K

The susceptibilities to 20 antimicrobial agents of Bordetella bronchiseptica variants in C mode and degraded phases were compared with those of their parents in X mode. Increases in MICs of 4- to...

In vitro susceptibility of Haemophilus somnus to 33 antimicrobial agents.

Sugimoto, C, Mitani, K, Nakazawa, M, Sekizaki, T, Terakado, N, Isayama, Y

Minimal inhibitory concentrations of 33 antimicrobial agents for Haemophilus somnus were determined by the agar dilution method. The tested H. somnus strains were highly susceptible to penicillin G,...

Evidence for sialyl glycoconjugates as receptors for Bordetella bronchiseptica on swine nasal mucosa.

Ishikawa, H, Isayama, Y

The nature of the receptors for Bordetella bronchiseptica was investigated by using the in vitro adherence assay system. The results indicated that sialyl glycoconjugates acted as receptors on swine...

Bordetella bronchiseptica phase variation induced by crystal violet.

Ishikawa, H, Isayama, Y

A method for effective induction of phase variation in Bordetella bronchiseptica by treatment with crystal violet (CV) is presented. When grown in CV-broth, phase I cells dissociated into three...

Cellular fatty acid composition of Haemophilus equigenitalis.

Sugimoto, C, Miyagawa, E, Mitani, K, Nakazawa, M, Isayama, Y

The cellular fatty acid composition of eight Haemophilus equigenitalis strains was determined by gas-liquid chromatography. All strains showed a grossly similar pattern characterized by large amounts...

Crystal violet staining of Bordetella bronchiseptica colonies for differentiation of phase-I strains from variant strains in degraded phases.

Ishikawa, H, Isayama, Y

After 2 days of growth on Brain heart infusion agar (BHIA) at 38 degrees C, phase-I colonies and degraded-phase colonies of Bordetella bronchiseptica could be differentiated by their ability to take...

Perivascular eosinophilic droplets in swine brain induced by Escherichia coli toxin.

Nakamura, K, Kashiwazaki, M, Isayama, Y, Shoya, S

Pigs inoculated intravenously with the culture supernatant and extract of Escherichia coli were investigated histologically. Perivascular eosinophilic droplets and slight vascular degeneration were...

Hydrophobic surface properties of Bordetella bronchiseptica X-mode cells and their possible role in adherence to porcine nasal mucosa.

Ishikawa, H, Isayama, Y

Bordetella bronchiseptica strains were examined to determine whether the surface hydrophobicity of the bacteria correlates with their adherence to porcine nasal epithelial cells. The relative...

Visual fatigue phenomenon and prescribing tinted lenses in patients with optic neuritis.

Tagami, Y., Ohnuma, T., Isayama, Y.

The fatigue phenomenon of grating visual acuity was examined in 36 patients with optic nerve disorders by means of a laser interferometric acuity device. The phenomenon was found in 6 of 36 cases...