T. Imamura

Publication List Details

Period

1999 - 2008

Number

57

Co-Authors

Cross-sections and analyzing powers for $(p,n)$ reactions on ${}^{3}{\rm He}$ and ${}^{4}{\rm He}$ at 346 MeV (2008)

Ihara, E., Wakasa, T., Dozono, M., Hatanaka, K., Imamura, T., Kato, M., ...

The cross-sections and analyzing powers for $(p,n)$ reactions on ${}^{3}{\rm He}$ and ${}^{4}{\rm He}$ have been measured at a bombarding energy of $T_p$ = 346 MeV and reaction angles of $\theta_{\rm...

Correlation function of the Schur process with a fixed final partition (2008)

Imamura, T., Sasamoto, T.

We consider a generalization of the Schur process in which a partition evolves from the empty partition into an arbitrary fixed final partition. We obtain a double integral representation of the...

Complete set of polarization transfer coefficients for the ${}^{3}{\rm He}(p,n)$ reaction at 346 MeV and 0 degrees (2008)

Wakasa, T., Ihara, E., Dozono, M., Hatanaka, K., Imamura, T., Kato, M., ...

We report measurements of the cross-section and a complete set of polarization transfer coefficients for the ${}^{3}{\rm He}(p,n)$ reaction at a bombarding energy $T_p$ = 346 MeV and a reaction angle...

Dynamics of a tagged particle in the asymmetric exclusion process with the step initial condition (2007)

Imamura, T., Sasamoto, T.

The one-dimensional totally asymmetric simple exclusion process (TASEP) is considered. We study the time evolution property of a tagged particle in TASEP with the step-type initial condition....

Bubble Driven Arrayed Actuator Device for a Tactile Display (2007)

Ukai, S., Imamura, T., Shikida, M., Sato, K.

We designed and made a micro meter sized arrayed actuator device for use in a tactile display. Each actuator uses a liquid-vapor phase change to drive a micro needle that stimulates receptors in a...

Effects of goshajinkigan (Niu-Che-Sen-Qi-Wan) for resiniferatoxin-sensitive afferents on detrusor overactivity induced by acetic acid in conscious rats (2006)

Zhang, XY, Ishizuka, O, Tanabe, T, Satoh, T, Nakayama, T, Imamura, T, ...

Electronic version of an article published as [AMERICAN JOURNAL OF CHINESE MEDICINE, 34, 2, 2006, 285-293] [doi:10.1142/S0192415X06003837] © [copyright World Scientific Publishing Company]...

Polynuclear growth model, GOE$^2$ and random matrix with deterministic source (2004)

Imamura, T., Sasamoto, T.

We present a random matrix interpretation of the distribution functions which have appeared in the study of the one-dimensional polynuclear growth (PNG) model with external sources. It is shown that...

Fluctuations of the one-dimensional polynuclear growth model with external sources (2004)

Imamura, T., Sasamoto, T.

The one-dimensional polynuclear growth model with external sources at edges is studied. The height fluctuation at the origin is known to be given by either the Gaussian, the GUE Tracy-Widom...

Long-Term Hypoxia Changes Myometrial Responsiveness and Oxytocin Receptors in the Pregnant Ewe: Differential Effects on Longitudinal Versus Circular Smooth Muscle1 (2003)

M. Mlynarczyk, T. Imamura, H. Umezaki, K.M. Kaushal, L. Zhang, C.A. Ducsay

Previous studies from our laboratory demonstrated that long-term hypoxia (LTH) altered in vitro contractile responses to oxytocin in full-thickness myometrial strips from pregnant sheep. The present...

Fluctuations of a one-dimensional polynuclear growth model in a half space (2003)

Sasamoto, T., Imamura, T.

We consider the multi-point equal time height fluctuations of a one-dimensional polynuclear growth model in a half space. For special values of the nucleation rate at the origin, the multi-layer...

Interaction and functional cooperation of PEBP2/CBF with Smads. Synergistic induction of the immunoglobulin germline Calpha promoter (1999)

Hanai, J., Chen, L. F., Kanno, T., Ohtani-Fujita, N., Kim, W. Y., Guo, W. H., ...

Smads are signal transducers for members of the transforming growth factor-beta (TGF-beta) superfamily. Upon ligand stimulation, receptor-regulated Smads (R-Smads) are phosphorylated by...

Cloning and characterization of a human type II receptor for bone morphogenetic proteins.

Rosenzweig, B L, Imamura, T, Okadome, T, Cox, G N, Yamashita, H, Ten Dijke, P, ...

Bone morphogenetic proteins (BMPs) are members of the transforming growth factor beta superfamily. Several members of this family have been shown to transduce their signals through binding to type I...

Dependence of vascular permeability enhancement on cysteine proteinases in vesicles of Porphyromonas gingivalis.

Imamura, T, Potempa, J, Pike, R N, Travis, J

Infection with Porphyromonas gingivalis is strongly associated with adult periodontitis, and proteinases are considered to be important virulent factors of the bacterium. In order to investigate the...

Effect of free and vesicle-bound cysteine proteinases of Porphyromonas gingivalis on plasma clot formation: implications for bleeding tendency at periodontitis sites.

Imamura, T, Potempa, J, Pike, R N, Moore, J N, Barton, M H, Travis, J

Infection by Porphyromonas gingivalis is strongly associated with adult periodontitis, with proteinases from this bacterium now considered to be important virulence factors. In order to investigate...

Expression of hepatitis B virus core antigen gene in Saccharomyces cerevisiae: synthesis of two polypeptides translated from different initiation codons.

Miyanohara, A, Imamura, T, Araki, M, Sugawara, K, Ohtomo, N, Matsubara, K

Two recombinant plasmids were constructed that allow expression of the hepatitis B core (HBc) antigen gene in the yeast Saccharomyces cerevisiae under the control of the repressible acid phosphatase...

Expression of hepatitis B virus middle and large surface antigen genes in Saccharomyces cerevisiae.

Imamura, T, Araki, M, Miyanohara, A, Nakao, J, Yonemura, H, Ohtomo, N, ...

The hepatitis B virus genome carries the surface antigen (SAg) gene and an open reading frame that encodes two SAg-related polypeptides: SAg with a 55-amino-acid N-terminal extension polypeptide and...

Pathogenesis of periodontitis: a major arginine-specific cysteine proteinase from Porphyromonas gingivalis induces vascular permeability enhancement through activation of the kallikrein/kinin pathway.

Imamura, T, Pike, R N, Potempa, J, Travis, J

To elucidate the mechanism of production of an inflammatory exudate, gingival crevicular fluid (GCF), from periodontal pockets in periodontitis, we examined the vascular permeability enhancement...

Structure of cloned delta-globin genes from a normal subject and a patient with delta-thalassemia; sequence polymorphisms found in the delta-globin gene region of Japanese individuals.

Kimura, A, Matsunaga, E, Ohta, Y, Fujiyoshi, T, Matsuo, T, Nakamura, T, ...

The delta-globin genes of a normal Japanese and a Japanese patient with homozygous delta-thalassemia were cloned, and the nucleotide sequence of a region including the gene was determined. Comparison...

Relationship of glucagon suppression by insulin and somatostatin to the ambient glucose concentration.

Starke, A, Imamura, T, Unger, R H

The glucagon-suppressing activity of insulin and somatostatin were compared at high and low glucose concentrations. In normal dogs made hyperglucagonemic by phloridzin pretreatment, insulin and...

Hemoglobin Rahere, a human hemoglobin variant with amino acid substitution at the 2,3-diphosphoglycerate binding site. Functional consequences of the alteration and effects of bezafibrate on the oxygen bindings.

Sugihara, J, Imamura, T, Nagafuchi, S, Bonaventura, J, Bonaventura, C, Cashon, R

We encountered an abnormal hemoglobin (Rahere), with a threonine residue replacing the beta 82 (EF6) lysine residue at the binding site of 2,3-diphosphoglycerate, which was responsible for overt...

Transforming growth factor beta 1 as a prognostic factor in pulmonary adenocarcinoma.

Takanami, I, Imamura, T, Hashizume, T, Kikuchi, K, Yamamoto, Y, Kodaira, S

AIMS--To evaluate the efficacy of transforming growth factor beta (TGF-beta) for the prognosis of pulmonary adenocarcinoma. METHODS--TGF-beta was detected immunohistochemically using the...

An extracellular domain of the beta subunit is essential for processing, transport and kinase activity of insulin receptor.

Haruta, T, Sawa, T, Takata, Y, Imamura, T, Takada, Y, Morioka, H, ...

The extracellular portion of the insulin receptor (IR) beta-subunit has four cysteine and four asparagine residues which are potentially involved in disulphide bond formation between the alpha- and...

TGF-beta receptor-mediated signalling through Smad2, Smad3 and Smad4.

Nakao, A, Imamura, T, Souchelnytskyi, S, Kawabata, M, Ishisaki, A, Oeda, E, ...

Smad family members are newly identified essential intracellular signalling components of the transforming growth factor-beta (TGF-beta) superfamily. Smad2 and Smad3 are structurally highly similar...

Smad proteins exist as monomers in vivo and undergo homo- and hetero-oligomerization upon activation by serine/threonine kinase receptors.

Kawabata, M, Inoue, H, Hanyu, A, Imamura, T, Miyazono, K

Smad proteins are signal transducers for the members of the transforming growth factor-beta (TGF-beta) superfamily. Here we show that, in the absence TGF-beta stimulation, Smads exist as monomers in...

Fibroblast growth factor-1 interacts with the glucose-regulated protein GRP75/mortalin.

Mizukoshi, E, Suzuki, M, Loupatov, A, Uruno, T, Hayashi, H, Misono, T, ...

Fibroblast growth factor-1 (FGF-1), which lacks a signal peptide and is intracellularly localized as a result of endogenous expression or endocytosis, is thought to be involved in regulating cell...

Activation of blood coagulation factor IX by gingipains R, arginine-specific cysteine proteinases from Porphyromonas gingivalis.

Imamura, T, Tanase, S, Hamamoto, T, Potempa, J, Travis, J

The effect of two arginine-specific cysteine proteinases (gingipains R) from Porphyromonas gingivalis, an aetiological factor of adult periodontitis, on the activation of human factor IX was...

Cloning and characterization of a human type II receptor for bone morphogenetic proteins.

Rosenzweig, B L, Imamura, T, Okadome, T, Cox, G N, Yamashita, H, Ten Dijke, P, ...

Bone morphogenetic proteins (BMPs) are members of the transforming growth factor beta superfamily. Several members of this family have been shown to transduce their signals through binding to type I...

Dependence of vascular permeability enhancement on cysteine proteinases in vesicles of Porphyromonas gingivalis.

Imamura, T, Potempa, J, Pike, R N, Travis, J

Infection with Porphyromonas gingivalis is strongly associated with adult periodontitis, and proteinases are considered to be important virulent factors of the bacterium. In order to investigate the...

Effect of free and vesicle-bound cysteine proteinases of Porphyromonas gingivalis on plasma clot formation: implications for bleeding tendency at periodontitis sites.

Imamura, T, Potempa, J, Pike, R N, Moore, J N, Barton, M H, Travis, J

Infection by Porphyromonas gingivalis is strongly associated with adult periodontitis, with proteinases from this bacterium now considered to be important virulence factors. In order to investigate...

Expression of hepatitis B virus core antigen gene in Saccharomyces cerevisiae: synthesis of two polypeptides translated from different initiation codons.

Miyanohara, A, Imamura, T, Araki, M, Sugawara, K, Ohtomo, N, Matsubara, K

Two recombinant plasmids were constructed that allow expression of the hepatitis B core (HBc) antigen gene in the yeast Saccharomyces cerevisiae under the control of the repressible acid phosphatase...

Expression of hepatitis B virus middle and large surface antigen genes in Saccharomyces cerevisiae.

Imamura, T, Araki, M, Miyanohara, A, Nakao, J, Yonemura, H, Ohtomo, N, ...

The hepatitis B virus genome carries the surface antigen (SAg) gene and an open reading frame that encodes two SAg-related polypeptides: SAg with a 55-amino-acid N-terminal extension polypeptide and...

Pathogenesis of periodontitis: a major arginine-specific cysteine proteinase from Porphyromonas gingivalis induces vascular permeability enhancement through activation of the kallikrein/kinin pathway.

Imamura, T, Pike, R N, Potempa, J, Travis, J

To elucidate the mechanism of production of an inflammatory exudate, gingival crevicular fluid (GCF), from periodontal pockets in periodontitis, we examined the vascular permeability enhancement...

Structure of cloned delta-globin genes from a normal subject and a patient with delta-thalassemia; sequence polymorphisms found in the delta-globin gene region of Japanese individuals.

Kimura, A, Matsunaga, E, Ohta, Y, Fujiyoshi, T, Matsuo, T, Nakamura, T, ...

The delta-globin genes of a normal Japanese and a Japanese patient with homozygous delta-thalassemia were cloned, and the nucleotide sequence of a region including the gene was determined. Comparison...

Relationship of glucagon suppression by insulin and somatostatin to the ambient glucose concentration.

Starke, A, Imamura, T, Unger, R H

The glucagon-suppressing activity of insulin and somatostatin were compared at high and low glucose concentrations. In normal dogs made hyperglucagonemic by phloridzin pretreatment, insulin and...

Hemoglobin Rahere, a human hemoglobin variant with amino acid substitution at the 2,3-diphosphoglycerate binding site. Functional consequences of the alteration and effects of bezafibrate on the oxygen bindings.

Sugihara, J, Imamura, T, Nagafuchi, S, Bonaventura, J, Bonaventura, C, Cashon, R

We encountered an abnormal hemoglobin (Rahere), with a threonine residue replacing the beta 82 (EF6) lysine residue at the binding site of 2,3-diphosphoglycerate, which was responsible for overt...

Transforming growth factor beta 1 as a prognostic factor in pulmonary adenocarcinoma.

Takanami, I, Imamura, T, Hashizume, T, Kikuchi, K, Yamamoto, Y, Kodaira, S

AIMS--To evaluate the efficacy of transforming growth factor beta (TGF-beta) for the prognosis of pulmonary adenocarcinoma. METHODS--TGF-beta was detected immunohistochemically using the...

An extracellular domain of the beta subunit is essential for processing, transport and kinase activity of insulin receptor.

Haruta, T, Sawa, T, Takata, Y, Imamura, T, Takada, Y, Morioka, H, ...

The extracellular portion of the insulin receptor (IR) beta-subunit has four cysteine and four asparagine residues which are potentially involved in disulphide bond formation between the alpha- and...

TGF-beta receptor-mediated signalling through Smad2, Smad3 and Smad4.

Nakao, A, Imamura, T, Souchelnytskyi, S, Kawabata, M, Ishisaki, A, Oeda, E, ...

Smad family members are newly identified essential intracellular signalling components of the transforming growth factor-beta (TGF-beta) superfamily. Smad2 and Smad3 are structurally highly similar...

Smad proteins exist as monomers in vivo and undergo homo- and hetero-oligomerization upon activation by serine/threonine kinase receptors.

Kawabata, M, Inoue, H, Hanyu, A, Imamura, T, Miyazono, K

Smad proteins are signal transducers for the members of the transforming growth factor-beta (TGF-beta) superfamily. Here we show that, in the absence TGF-beta stimulation, Smads exist as monomers in...

Fibroblast growth factor-1 interacts with the glucose-regulated protein GRP75/mortalin.

Mizukoshi, E, Suzuki, M, Loupatov, A, Uruno, T, Hayashi, H, Misono, T, ...

Fibroblast growth factor-1 (FGF-1), which lacks a signal peptide and is intracellularly localized as a result of endogenous expression or endocytosis, is thought to be involved in regulating cell...

Activation of blood coagulation factor IX by gingipains R, arginine-specific cysteine proteinases from Porphyromonas gingivalis.

Imamura, T, Tanase, S, Hamamoto, T, Potempa, J, Travis, J

The effect of two arginine-specific cysteine proteinases (gingipains R) from Porphyromonas gingivalis, an aetiological factor of adult periodontitis, on the activation of human factor IX was...

Thrombin generates monocyte chemotactic activity from complement factor H.

Ohtsuka, H, Imamura, T, Matsushita, M, Tanase, S, Okada, H, Ogawa, M, ...

We have recently found that the complement factor H (H) was the precursor of the major macrophage chemotactic factor in the delayed-type hypersensitivity (DTH) reaction site in the skin and was...

Bone morphogenetic protein receptors and activin receptors are highly expressed in ossified ligament tissues of patients with ossification of the posterior longitudinal ligament.

Yonemori, K., Imamura, T., Ishidou, Y., Okano, T., Matsunaga, S., Yoshida, H., ...

Ossification of the posterior longitudinal ligament (OPLL) is a pathological ossification in the spinal ligament, with formation of ectopic bone mainly through endochondral ossification. Bone...

Clinical significance of serum p53 antigen in patients with pancreatic carcinomas.

Suwa, H, Ohshio, G, Okada, N, Wang, Z, Fukumoto, M, Imamura, T, ...

BACKGROUND: Alterations in the p53 gene are often found in pancreatic cancer, and accumulation of the p53 protein has been noted in tumour cells. AIMS: To investigate whether serum p53 protein...

Distribution of hepatitis B viral genotypes and mutations in the core promoter and precore regions in acute forms of liver disease in patients from Chiba, Japan

Imamura, T, Yokosuka, O, Kurihara, T, Kanda, T, Fukai, K, Imazeki, F, ...

Background: Although it has been reported that different hepatitis B virus (HBV) genotypes induce different clinical characteristics in patients with chronic liver diseases (CLD), there have been few...

Guinea pig plasma kallikrein as a vascular permeability enhancement factor. Its dependence on kinin generation and regulation mechanisms in vivo.

Imamura, T., Yamamoto, T., Kambara, T.

Plasma kallikrein (mol wt 80,000) was purified from guinea pig plasma, and it caused vascular permeability enhancement when injected into guinea pig skin. The activity had a linear relationship to...

Phenobarbital pretreatment protects against morphologic changes in rat bronchiolar epithelium caused by an impurity of malathion.

Gandy, J., Talbot, P., Fukuto, T. R., Imamura, T.

Oral administration (20 mg/kg) of O,O,S-trimethyl phosphorothioate (OOS) causes delayed toxicity in rats; ie, death occurs as late as 28 days after treatment. OOS-treated rats show morphologic...

Arginine-specific gingipains from Porphyromonas gingivalis deprive protective functions of secretory leucocyte protease inhibitor in periodontal tissue

Into, T, Inomata, M, Kanno, Y, Matsuyama, T, Machigashira, M, Izumi, Y, ...

Chronic periodontitis is correlated with Porphyromonas gingivalis infection. In this study, we found that the expression of secretory leucocyte protease inhibitor (SLPI), an endogenous inhibitor for...

Increased adrenomedullin immunoreactivity and mRNA expression in coronary plaques obtained from patients with unstable angina

Ishikawa, T, Hatakeyama, K, Imamura, T, Ito, K, Hara, S, Date, H, ...

Objective: To examine the expression and localisation of adrenomedullin in human coronary atherosclerotic lesions from patients with unstable angina (UAP) and stable angina (SAP), and to study the...

Hypergraphia associated with a brain tumour of the right cerebral hemisphere.

Imamura, T, Yamadori, A, Tsuburaya, K

Two different neurobehavioural abnormalities have been reported under the term hypergraphia. One has been described in temporal lobe epilepsies and the other in the acute stage of strokes of the...

Case-control study of presenilin-1 intronic polymorphism in sporadic early and late onset Alzheimer's disease

Yasuda, M., Hirono, N., Maeda, K., Imamura, T., Mori, E., Tanaka, C.

OBJECTIVE—Presenilin-1 is a major causative gene for early onset familial Alzheimer's disease, and the apolipoprotein E ε4 allele is a major genetic risk factor known to influence late onset and...

Hypofunction in the posterior cingulate gyrus correlates with disorientation for time and place in Alzheimer's disease

Hirono, N., Mori, E., Ishii, K., Ikejiri, Y., Imamura, T., Shimomura, T., ...

The relation between orientation for time and place and regional cerebral glucose metabolism was examined in 86 patients with probable Alzheimer's disease of minimal to moderate severity. Regional...

Factors associated with psychotic symptoms in Alzheimer's disease

Hirono, N., Mori, E., Yasuda, M., Ikejiri, Y., Imamura, T., Shimomura, T., ...

OBJECTIVES—Many clinical and biological factors have been reported to be associated with the presence of psychosis in patients with Alzheimer's disease, although the associations were variable. The...

Regional metabolism: associations with dyscalculia in Alzheimer's disease

Hirono, N., Mori, E., Ishii, K., Imamura, T., Shimomura, T., Tanimukai, S., ...

OBJECTIVES—The ability to calculate, which is an important aspect of social daily living, is commonly impaired in patients with Alzheimer's disease even early in the course of the disease....

Long-term follow up in type A insulin resistant syndrome treated by insulin-like growth factor I.

Ishihama, H, Suzuki, Y, Muramatsu, K, Nagai, M, Kokubo, M, Shiraya, H, ...

Insulin-like growth factor I (IGF-I) is a useful therapeutic agent in insulin resistant diabetes mellitus due to insulin receptor disease because of its hypoglycaemic effects through the IGF-I...