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Research Output 1987 2019

2001
91 Citations (Scopus)

Characteristics of patients complaining of halitosis and the usefulness of gas chromatography for diagnosing halitosis

Oho, T., Yoshida, Y., Shimazaki, Y., Yamashita, Y. & Koga, T., Jan 1 2001, In : Oral Surgery, Oral Medicine, Oral Pathology, Oral Radiology, and Endodontics. 91, 5, p. 531-534 4 p.

Research output: Contribution to journalArticle

Halitosis
Gas Chromatography
Sulfur Compounds
Sulfides
Mouth
24 Citations (Scopus)

Immunodominant region of Actinobacillus actinomycetemcomitans 40-kilodalton heat shock protein in patients with rheumatoid arthritis

Yoshida, A., Nakano, Y., Yamashita, Y., Oho, I., Ito, H., Kondo, M., Ohishi, M. & Koga, T., Jan 1 2001, In : Journal of Dental Research. 80, 1, p. 346-350 5 p.

Research output: Contribution to journalArticle

HSP40 Heat-Shock Proteins
Aggregatibacter actinomycetemcomitans
Immunodominant Epitopes
Rheumatoid Arthritis
Immunoglobulin G
200 Citations (Scopus)

Influence of dentition status on physical disability, mental impairment, and mortality in institutionalized elderly people

Shimazaki, Y., Soh, I., Saito, T., Yamashita, Y., Koga, T., Miyazaki, H. & Takehara, T., Jan 1 2001, In : Journal of Dental Research. 80, 1, p. 340-345 6 p.

Research output: Contribution to journalArticle

Dentition
Dentures
Mortality
Tooth
Tooth Loss
20 Citations (Scopus)

Passive immunization with milk produced from an immunized cow prevents oral recolonization by Streptococcus mutans

Shimazaki, Y., Mitoma, M., Oho, T., Nakano, Y., Yamashita, Y., Okano, K., Nakano, Y., Fukuyama, M., Fujihara, N., Nada, Y. & Koga, T., Nov 17 2001, In : Clinical and Diagnostic Laboratory Immunology. 8, 6, p. 1136-1139 4 p.

Research output: Contribution to journalArticle

Immunization
Passive Immunization
Streptococcus mutans
Cetylpyridinium
Milk

Production of goat milk antibodies against cell surface protein antigen-glucosyltransferase fusion protein of Streptococcus mutans

Kawagoe, H., Oho, T., Okano, K., Nakano, Y., Ono, Y., Shimazaki, Y., Yamashita, Y., Koga, T., Fukuyama, M. & Fujihara, N., Feb 1 2001, In : Journal of the Faculty of Agriculture, Kyushu University. 45, 2, p. 495-507 13 p.

Research output: Contribution to journalArticle

Glucosyltransferases
Streptococcus mutans
glucosyltransferases
goat milk
surface proteins
23 Citations (Scopus)

Psychological condition of patients complaining of halitosis

Oho, T., Yoshida, Y., Shimazaki, Y., Yamashita, Y. & Koga, T., Jan 1 2001, In : Journal of Dentistry. 29, 1, p. 31-33 3 p.

Research output: Contribution to journalArticle

Halitosis
Psychology
Cornell Medical Index
Neurotic Disorders
Health
2000
21 Citations (Scopus)

A gene cluster for the synthesis of serotype d-specific polysaccharide antigen in Actinobacillus actinomycetemcomitans

Nakano, Y., Yoshida, Y., Suzuki, N., Yamashita, Y. & Koga, T., Sep 7 2000, In : Biochimica et Biophysica Acta - Gene Structure and Expression. 1493, 1-2, p. 259-263 5 p.

Research output: Contribution to journalArticle

Aggregatibacter actinomycetemcomitans
Multigene Family
Polysaccharides
Genes
Antigens
104 Citations (Scopus)

Formation of methyl mercaptan from L-methionine by Porphyromonas gingivalis

Yoshimura, M., Nakano, Y., Yamashita, Y., Oho, T., Saito, T. & Koga, T., Dec 1 2000, In : Infection and Immunity. 68, 12, p. 6912-6916 5 p.

Research output: Contribution to journalArticle

Porphyromonas gingivalis
Sulfhydryl Compounds
Methionine
Virulence
Lyases
24 Citations (Scopus)

Genetic analysis of the gene cluster for the synthesis of serotype a-specific polysaccharide antigen in Actinobacillus actinomycetemcomitans

Suzuki, N., Nakano, Y., Yoshida, Y., Nakao, H., Yamashita, Y. & Koga, T., Dec 15 2000, In : Biochimica et Biophysica Acta - Gene Structure and Expression. 1517, 1, p. 135-138 4 p.

Research output: Contribution to journalArticle

Aggregatibacter actinomycetemcomitans
Multigene Family
Polysaccharides
Genes
Antigens
29 Citations (Scopus)

Role of serotype-specific polysaccharide in the resistance of Streptococcus mutans to phagocytosis by human polymorphonuclear leukocytes

Tsuda, H., Yamashita, Y., Toyoshima, K., Yamaguchi, N., Oho, T., Nakano, Y., Nagata, K. & Koga, T., Feb 1 2000, In : Infection and Immunity. 68, 2, p. 644-650 7 p.

Research output: Contribution to journalArticle

Streptococcus mutans
Phagocytosis
Polysaccharides
Luminescence
Neutrophils
118 Citations (Scopus)

Simple and rapid detection of Streptococcus mutans and Streptococcus sobrinus in human saliva by polymerase chain reaction

Oho, T., Yamashita, Y., Shimazaki, Y., Kushiyama, M. & Koga, T., Aug 2000, In : Oral Microbiology and Immunology. 15, 4, p. 258-262 5 p.

Research output: Contribution to journalArticle

Streptococcus sobrinus
Streptococcus mutans
Saliva
Polymerase Chain Reaction
DNA
38 Citations (Scopus)

Thymidine diphosphate-6-deoxy-L-lyxo-4-hexulose reductase synthesizing dTDP-6-deoxy-L-talose from Actinobacillus actinomycetemcomitans

Nakano, Y., Suzuki, N., Yoshida, Y., Nezu, T., Yamashita, Y. & Koga, T., Mar 10 2000, In : Journal of Biological Chemistry. 275, 10, p. 6806-6812 7 p.

Research output: Contribution to journalArticle

Aggregatibacter actinomycetemcomitans
Oxidoreductases
Genes
Biosynthesis
Sugars
1999
12 Citations (Scopus)

A novel dnaK operon from Porphyromonas gingivalis

Yoshida, A., Nakano, Y., Yamashita, Y., Oho, T., Shibata, Y., Ohishi, M. & Koga, T., Mar 12 1999, In : FEBS Letters. 446, 2-3, p. 287-291 5 p.

Research output: Contribution to journalArticle

Small Heat-Shock Proteins
Porphyromonas gingivalis
Operon
Escherichia coli
Adenosine Triphosphatases
43 Citations (Scopus)

A novel gene required for rhamnose-glucose polysaccharide synthesis in Streptococcus mutans

Yamashita, Y., Shibata, Y., Nakano, Y., Tsuda, H., Kido, N., Ohta, M. & Koga, T., Oct 1 1999, In : Journal of bacteriology. 181, 20, p. 6556-6559 4 p.

Research output: Contribution to journalArticle

Rhamnose
Streptococcus mutans
Polysaccharides
Escherichia coli
Glucose
33 Citations (Scopus)

A novel NDP-6-deoxyhexosyl-4-ulose reductase in the pathway for the synthesis of thymidine diphosphate-D-fucose

Yoshida, Y., Nakano, Y., Nezu, T., Yamashita, Y. & Koga, T., Jun 11 1999, In : Journal of Biological Chemistry. 274, 24, p. 16933-16939 7 p.

Research output: Contribution to journalArticle

Fucose
Oxidoreductases
Genes
Polysaccharides
Aggregatibacter actinomycetemcomitans
22 Citations (Scopus)

Bovine milk antibodies against cell surface protein antigen PAc- glucosyltransferase fusion protein suppress cell adhesion and alter glucan synthesis of Streptococcus mutans

Oho, T., Shimazaki, Y., Mitoma, M., Yoshimura, M., Yamashita, Y., Okano, K., Nakano, Y., Kawagoe, H., Fukuyama, M., Fujihara, N. & Koga, T., 1999, In : Journal of Nutrition. 129, 10, p. 1836-1841 6 p.

Research output: Contribution to journalArticle

Glucosyltransferases
Streptococcus mutans
glucosyltransferases
Glucans
surface proteins
15 Citations (Scopus)

Genetic analysis of the gene cluster responsible for synthesis of serotype e-specific polysaccharide antigen in Actinobacillus actinomycetemcomitans

Yoshida, Y., Nakano, Y., Suzuki, N., Nakao, H., Yamashita, Y. & Koga, T., Dec 23 1999, In : Biochimica et Biophysica Acta - Gene Structure and Expression. 1489, 2-3, p. 457-461 5 p.

Research output: Contribution to journalArticle

Aggregatibacter actinomycetemcomitans
Multigene Family
Polysaccharides
Genes
Antigens
5 Citations (Scopus)

Isolation and characterization of the rml gene homologs from Porphyromonas gingivalis

Shibata, Y., Yamashita, Y., Nakano, Y. & Koga, T., Dec 1999, In : Oral Microbiology and Immunology. 14, 6, p. 339-347 9 p.

Research output: Contribution to journalArticle

Porphyromonas gingivalis
Genes
Chromosomes
Gram-Negative Bacteria
Reverse Transcriptase Polymerase Chain Reaction
18 Citations (Scopus)

Recombination between gtfB and gtfC is required for survival of a dTDP- rhamnose synthesis-deficient mutant of Streptococcus mutans in the presence of sucrose

Yamashita, Y., Tomihisa, K., Nakano, Y., Shimazaki, Y., Oho, T. & Koga, T., 1999, In : Infection and Immunity. 67, 7, p. 3693-3697 5 p.

Research output: Contribution to journalArticle

Rhamnose
Streptococcus mutans
Genetic Recombination
Sucrose
Glucans
15 Citations (Scopus)

The expression of proliferating cell nuclear antigen (PCNA) and p 53 protein correlate with prognosis of patients with oral squamous cell carcinoma.

Kurokawa, H., Yamashita, Y., Takeda, S., Miura, K., Murata, T. & Kajiyama, M., Jan 1 1999, In : Fukuoka igaku zasshi = Hukuoka acta medica. 90, 1, p. 6-13 8 p.

Research output: Contribution to journalArticle

Proliferating Cell Nuclear Antigen
Squamous Cell Carcinoma
Proteins
Lymph Nodes
Neoplasm Metastasis
1998
21 Citations (Scopus)

A comparison of DAI scores and characteristics of occlusal traits in three ethnic groups of Asian origin

Katoh, Y., Ansai, T., Takehara, T., Yamashita, Y., Miyazaki, H., Jenny, J. & Cons, N. C., Jan 1 1998, In : International Dental Journal. 48, 4, p. 405-411 7 p.

Research output: Contribution to journalReview article

Dental Esthetics
Malocclusion
Ethnic Groups
North American Indians
Taiwan
27 Citations (Scopus)

A gene cluster for 6-deoxy-L-talan synthesis in Actinobacillus actinomycetemcomitans

Nakano, Y., Yoshida, Y., Yamashita, Y. & Koga, T., Nov 8 1998, In : Biochimica et Biophysica Acta - Gene Structure and Expression. 1442, 2-3, p. 409-414 6 p.

Research output: Contribution to journalArticle

Aggregatibacter actinomycetemcomitans
Multigene Family
Polysaccharides
Genes
Antigens
73 Citations (Scopus)

Binding of salivary glycoprotein-secretory immunoglobulin a complex to the surface protein antigen of Streptococcus mutans

Oho, T., Yu, H., Yamashita, Y. & Koga, T., 1998, In : Infection and Immunity. 66, 1, p. 115-121 7 p.

Research output: Contribution to journalArticle

Streptococcus mutans
Agglutinins
Surface Antigens
Immunoglobulins
Glycoproteins
8 Citations (Scopus)
Opsonin Proteins
Aggregatibacter actinomycetemcomitans
Capsules
Polysaccharides
Lipopolysaccharides
5 Citations (Scopus)

Estimation of tumor necrosis factor-alpha in the diagnosis, the prognosis and the treatment follow-up of oral squamous cell carcinoma.

Kurokawa, H., Yamashita, M., Yamashita, Y., Murata, T., Miura, K. & Kajiyama, M., Jan 1 1998, In : Fukuoka igaku zasshi = Hukuoka acta medica. 89, 11, p. 312-320 9 p.

Research output: Contribution to journalArticle

Squamous Cell Carcinoma
Tumor Necrosis Factor-alpha
Serum
Tumor Biomarkers
Therapeutics
49 Citations (Scopus)

Genes involved in cell wall localization and side chain formation of rhamnose-glucose polysaccharide in Streptococcus mutans

Yamashita, Y., Tsukioka, Y., Tomihisa, K., Nakano, Y. & Koga, T., 1998, In : Journal of Bacteriology. 180, 21, p. 5803-5807 5 p.

Research output: Contribution to journalArticle

Rhamnose
Streptococcus mutans
Cell Wall
Polysaccharides
Glucose
18 Citations (Scopus)

Histological grading of malignancy correlates with regional lymph node metastasis and survival of patients with oral squamous cell carcinoma.

Kurokawa, H., Yamashita, Y., Murata, T., Yoshikawa, T., Tokudome, S., Miura, K. & Kajiyama, M., Jan 1 1998, In : Fukuoka igaku zasshi = Hukuoka acta medica. 89, 8, p. 225-231 7 p.

Research output: Contribution to journalArticle

Squamous Cell Carcinoma
Lymph Nodes
Neoplasm Metastasis
Survival
Neoplasms
42 Citations (Scopus)

Identification of a genetic locus essential for serotype b-specific antigen synthesis in Actinobacillus actinomycetemcomitans

Yoshida, Y., Nakano, Y., Yamashita, Y. & Koga, T., 1998, In : Infection and Immunity. 66, 1, p. 107-114 8 p.

Research output: Contribution to journalArticle

Aggregatibacter actinomycetemcomitans
Genetic Loci
Polysaccharides
Antigens
Escherichia coli
8 Citations (Scopus)

Manganese superoxide dismutase (Mn-SOD) correlates with prognosis of patients with oral squamous cell carcinoma.

Kurokawa, H., Sakimoto, M., Yamashita, Y., Murata, T. & Kajiyama, M., Jan 1 1998, In : Fukuoka igaku zasshi = Hukuoka acta medica. 89, 11, p. 321-327 7 p.

Research output: Contribution to journalArticle

Superoxide Dismutase
Squamous Cell Carcinoma
Lymph Nodes
Neoplasms
7 Citations (Scopus)

Primary localization amyloidosis of the sublingual gland.

Kurokawa, H., Takuma, C., Tokudome, S., Yamashita, Y. & Kajiyama, M., Jan 1 1998, In : Fukuoka igaku zasshi = Hukuoka acta medica. 89, 7, p. 216-220 5 p.

Research output: Contribution to journalArticle

Sublingual Gland
Serum Amyloid A Protein
Amyloidosis
Biopsy
Mouth Floor
1997
84 Citations (Scopus)

Biological function of the dTDP-rhamnose synthesis pathway in Streptococcus mutans

Tsukioka, Y., Yamashita, Y., Oho, T., Nakano, Y. & Koga, T., Jan 1 1997, In : Journal of bacteriology. 179, 4, p. 1126-1134 9 p.

Research output: Contribution to journalArticle

Rhamnose
Streptococcus mutans
Genes
Streptococcus
Antigens
38 Citations (Scopus)
Glucosyltransferases
Streptococcus mutans
Glucans
Surface Antigens
Cell Adhesion
1 Citation (Scopus)

Evaluation of neo-adjuvant chemotherapy for oral squamous cell carcinoma

Kurokawa, H., Miura, K., Yamashita, Y., Tokudome, S., Murata, T. & Kajiyama, M., Sep 24 1997, In : Japanese Journal of Cancer and Chemotherapy. 24, 10, p. 1273-1278 6 p.

Research output: Contribution to journalArticle

Adjuvant Chemotherapy
Squamous Cell Carcinoma
Carboplatin
Peplomycin
Cisplatin

Genetic analysis of the surface protein antigen gene expression in Streptococcus mutans

Koga, T., Yamashita, Y., Tsukioka, Y., Nakano, Y. & Shibata, Y., 1997, In : Advances in Experimental Medicine and Biology. 418, p. 673-676 4 p.

Research output: Contribution to journalArticle

Bacterial Gene Expression Regulation
Molecular Sequence Data
Bacterial Outer Membrane Proteins
Bacterial Adhesion
Bacterial Antigens
49 Citations (Scopus)

Identification of a fourth gene involved in dTDP-rhamnose synthesis in Streptococcus mutans

Tsukioka, Y., Yamashita, Y., Nakano, Y., Oho, T. & Koga, T., Jan 1 1997, In : Journal of bacteriology. 179, 13, p. 4411-4414 4 p.

Research output: Contribution to journalArticle

Rhamnose
Streptococcus mutans
Genes
Shigella flexneri
Antigens
31 Citations (Scopus)
Frameshift Mutation
Streptococcus mutans
Cell Wall
Antigens
Codon
5 Citations (Scopus)

Influence of the discontinuation of a school-based, supervised fluoride mouthrinsing programme on the prevalence of dental caries

Yamaguchi, N., Saito, T., Oho, T., Sumi, Y., Yamashita, Y. & Koga, T., Dec 1 1997, In : Community Dental Health. 14, 4, p. 258-261 4 p.

Research output: Contribution to journalArticle

Dental Caries
Fluorides
Oral Diagnosis
Bicuspid
Japan
4 Citations (Scopus)

Isolation and characterization of the dnaKJ operon from Actinobacillus actinomycetemcomitans

Yoshida, A., Nakano, Y., Yamashita, Y., Yu, H., Ohishi, M. & Koga, T., Dec 1 1997, In : Mitochondrial DNA. 8, 1-2, p. 93-98 6 p.

Research output: Contribution to journalArticle

Aggregatibacter actinomycetemcomitans
Operon
Oligonucleotides
Open Reading Frames
Proteins

Molecular characterization of a gene locus encoding biosynthesis pathway of Streptococcus mutans serotype C-specific antigen

Yamashita, Y., Tsukioka, Y., Oho, T., Nakano, Y. & Koga, T., 1997, In : Advances in Experimental Medicine and Biology. 418, p. 1011-1014 4 p.

Research output: Contribution to journalArticle

Mannose-6-Phosphate Isomerase
Nucleotidyltransferases
Bacterial Polysaccharides
Bacterial Antigens
Shigella flexneri
9 Citations (Scopus)

Role of the charged tail in localization of a surface protein antigen of Streptococcus mutans

Murakami, Y., Yamashita, Y., Nakano, Y., Ito, H. O., Yu, H. & Koga, T., 1997, In : Infection and Immunity. 65, 4, p. 1531-1535 5 p.

Research output: Contribution to journalArticle

Streptococcus mutans
Surface Antigens
Membrane Proteins
Amino Acids
Site-Directed Mutagenesis
8 Citations (Scopus)
Phosphogluconate Dehydrogenase
Aggregatibacter actinomycetemcomitans
Gene encoding
Genes
DNA
1996
10 Citations (Scopus)

Immunogenicity of Actinobacillus actinomycetemcomitans serotype b-specific polysaccharide-protein conjugate

Takamatsu-Matsushita, N., Yamaguchi, N., Kawasaki, M., Yamashita, Y., Takehara, T. & Koga, T., Aug 1996, In : Oral Microbiology and Immunology. 11, 4, p. 220-225 6 p.

Research output: Contribution to journalArticle

Aggregatibacter actinomycetemcomitans
Polysaccharides
Antigens
Proteins
Immunization
16 Citations (Scopus)

Molecular and genetic analysis of multiple changes in the levels of production of virulence factors in a subcultured variant of Streptococcus mutans

Yamashita, Y., Tsukioka, Y., Nakano, Y., Shibata, Y. & Koga, T., Oct 15 1996, In : FEMS microbiology letters. 144, 1, p. 81-87 7 p.

Research output: Contribution to journalArticle

Streptococcus mutans
Virulence Factors
Molecular Biology
Genes
Chloramphenicol O-Acetyltransferase
6 Citations (Scopus)

New shuttle vectors for Actinobacillus actinomycetemcomitans and Escherichia coli

Nakano, Y., Yoshida, Y., Yamashita, Y. & Koga, T., Feb 22 1996, In : Gene. 169, 1, p. 139-140 2 p.

Research output: Contribution to journalArticle

Aggregatibacter actinomycetemcomitans
Genetic Vectors
Escherichia coli
Replicon
Replication Origin
1995
14 Citations (Scopus)

A murC gene in porphyromonas gingivalis 381

Ansai, T., Yamashita, Y., Awano, S., Shibata, Y., Wachi, M., Nagai, K. & Takehara, T., Jan 1 1995, In : Microbiology. 141, 9, p. 2047-2052 6 p.

Research output: Contribution to journalArticle

Porphyromonas gingivalis
Peptidoglycan
Open Reading Frames
Genes
Escherichia coli Proteins
4 Citations (Scopus)

An enzyme-linked immunosorbent assay for measuring antibodies to serotype-specific polysaccharide antigens of Actinobacillus actinomycetemcomitans

Kawasaki, M., Takamatsu, N., Ansai, T., Yamashita, Y., Takehara, T. & Koga, T., Jan 1 1995, In : Journal of Microbiological Methods. 21, 2, p. 181-192 12 p.

Research output: Contribution to journalArticle

Aggregatibacter actinomycetemcomitans
Polysaccharides
Enzyme-Linked Immunosorbent Assay
Antigens
Avidin
97 Citations (Scopus)

Construction of a series of pACYC-derived plasmid vectors

Nakano, Y., Yoshida, Y., Yamashita, Y. & Koga, T., Aug 30 1995, In : Gene. 162, 1, p. 157-158 2 p.

Research output: Contribution to journalArticle

Genetic Vectors
Plasmids
Chloramphenicol Resistance
Genes
Ampicillin Resistance
26 Citations (Scopus)

Molecular and immunological characterization of a 64‐kDa protein of Actinobacillus actinomycetemcomitans

Nakano, Y., Inai, Y., Yamashita, Y., Nagaoka, S., Kusuzaki‐Nagira, T., Nishihara, T., Okahashi, N. & Koga, T., Jan 1 1995, In : Oral Microbiology and Immunology. 10, 3, p. 151-159 9 p.

Research output: Contribution to journalArticle

Aggregatibacter actinomycetemcomitans
Proteins
Periodontitis
Operon
Haemophilus paraphrophilus
31 Citations (Scopus)

Role of the capsular polysaccharide-like serotype-specific antigen in resistance of Actinobacillus actinomycetemcomitans to phagocytosis by human polymorphonuclear leukocytes

Yamaguchi, N., Kawasaki, M., Yamashita, Y., Nakashima, K. & Koga, T., 1995, In : Infection and Immunity. 63, 12, p. 4589-4594 6 p.

Research output: Contribution to journalArticle

Aggregatibacter actinomycetemcomitans
Phagocytosis
Polysaccharides
Neutrophils
Antigens

Semiquantitative analysis of periodontopathogens by gene amplification

Sumi, Y., Yamashita, Y., Nakano, Y. & Koga, T., Jan 1 1995, In : Japanese Journal of Medical Science and Biology. 48, 4, p. 177-191 15 p.

Research output: Contribution to journalArticle

Gene Amplification
Polymerase chain reaction
Bacteria
Assays
Aggregatibacter actinomycetemcomitans