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Gotoh H, Ueda T, Uno A, Ohuchi H, Ikenaka K, Ono K. Expression of myelin genes in the developing chick retina. Gene Expr Patterns 2011; 11:471-5. [PMID: 21872683 DOI: 10.1016/j.gep.2011.08.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2011] [Revised: 08/04/2011] [Accepted: 08/05/2011] [Indexed: 11/25/2022]
Abstract
In submammalian animals including chicks, the retina contains oligodendrocytes (OLs), and axons in the optic fiber layer are wrapped with compact myelin within the retina; however, the expression of myelin genes in the chick retina has not been demonstrated yet. In the present study, we examined the expression of three myelin genes (proteolipid protein, PLP; myelin basic protein, MBP; cyclic nucleotide phosphodiesterase, CNP) and PLP in the developing chick retina, in comparison to the localization of Mueller cells. In situ hybridization demonstrated that all three myelin genes began to be expressed at E14 in the chick embryo retina. They are mostly restricted to the ganglion cell layer and the optic fiber layer, with a few exceptions in the inner nuclear layer where Mueller cells reside; however, PLP mRNA+ cells do not express glutamine synthetase, or vice versa. The present results elucidate that myelin genes are expressed only by OLs that are mostly localized in the innermost layer of the developing chick retina.
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Affiliation(s)
- Hitosh Gotoh
- Department of Biology, Kyoto Prefectural University of Medicine, Kyoto, Japan
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152
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Kihira K, Shimizu Y, Shomura Y, Kitamura M, Nakagawa A, Tsukihara T, Ueda T, Ochi K, Higuchi Y. Crystal structure analysis of release factor 3. Acta Crystallogr A 2011. [DOI: 10.1107/s0108767311095687] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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153
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Abstract
Purpose. In a previous series of 25 human osteosarcoma samples studied for MYC gene amplification, we found amplification in two cases (8%), including one arising in association with Paget's disease (pagetic osteosarcoma). Based on this observation, we further investigated the prevalence of MYC gene amplification in pagetic osteosarcomas.Methods. MYC gene amplification was assessed by Southern blot analysis using frozen tissue samples in five cases of pagetic osteosarcoma and 53 cases of primary (non-pagetic) osteosarcoma. Amplification was considered present if the MYC copy number was six or greater.Results. Three out of five patients (60%) with pagetic osteosarcoma showed MYC gene amplification, whereas it was present in only 5/53 patients (9.4%) with primary osteosarcoma. The incidence of MYC amplification in pagetic osteosarcoma was thus significantly higher than that in primary osteosarcoma (p = 0.016).Discussion. The finding that MYC gene amplification may be more common in pagetic than primary osteosarcoma warrants further study and suggests pathogenetic differences between primary osteosarcomas and those arising in the setting of Paget's disease. Three of the four pagetic osteosarcomas from the present study were previously shown to be immunoreactive for p53, suggesting that p53 mutation may also be a frequent genetic lesion in these tumors.
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Affiliation(s)
- T Ueda
- Department of Surgery Orthopaedic Service Memorial Sloan-Kettering Cancer Center New York USA
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154
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Yoshikawa H, Ueda T, Kudawara I, Araki N, Yonenobu K, Ochi T, Uchida A. Surgical treatment for skeletal metastases from soft tissue sarcomas: experience with 23 lesions in 20 patients. Sarcoma 2011; 2:107-14. [PMID: 18521241 PMCID: PMC2395386 DOI: 10.1080/13577149878064] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
Abstract
Purpose. This paper reports the procedures and the clinical results of a series of surgical treatments for skeletal metastases from soft tissue sarcomas.Subjects and methods. Surgical treatment of metastatic bony lesions from soft tissue sarcomas has been carried out over a 20 year period (1975-1996). Thirty-two patients developed skeletal metastases from soft tissue sarcomas, and 20 of these cases received surgical treatment. The 23 metastatic bony lesions in these 20 patients were treated using the following surgical approaches: wide resection with prosthetic replacement in five lesions, wide or marginal resection without reconstruction in four lesions, intramedullarly nailing with curettage and methylmethacrylate cementation in four lesions, marginal resection of vertebral body with replacement by a ceramic prosthesis in three lesions, laminectomy in three lesions, intramedullarly nailing in two lesions, and curettage in two lesions.Results. Relief of pain was achieved in 17 of the 20 patients. The ambulatory status of the patients with metastasis in the lower extremity or periacetabular region was significantly improved in nine of 10 cases. Seventeen patients died of disease, with a mean survival period of 17.9 months after surgery for metastasis.Discussion. Although surgical treatment for skeletal metastases from soft tissue sarcomas cannot save the life of the patient, it can be of value in improving their well-being and overall quality of life. In these cases, surgical intervention may be more frequently indicated than in tumors with an osteoblastic or mixed pattern.
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Affiliation(s)
- H Yoshikawa
- Department of Orthopaedic Surgery Osaka Medical Center for Cancer and Cardiovascular Diseases 1-3-3, Nakamichi Higashinari-ku Osaka 537 Japan
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155
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Ono H, Yoshikawa H, Ueda T, Yamamura H, Kudawara I, Manou M, Ishiguro S, Funai H, Koyanagi Y, Araki N, Hashimoto N, Sonobe H, Tatsuta M, Takahashi K. Expression of smooth muscle calponin in synovial sarcoma. Sarcoma 2011; 3:107-13. [PMID: 18521272 PMCID: PMC2395415 DOI: 10.1080/13577149977730] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
Abstract
Purpose. Histogenesis of synovial sarcoma remains controversial and reliable molecular markers for diagnosis are necessary. Expression of basic calponin, a smooth muscle differentiation-specific actin-binding protein, was studied in synovial sarcoma.Subjects and Methods. The basic calponin gene and the gene product were analyzed by reverse transcription PCR analysis (RT-PCR) and immunohistochemistry in 14 synovial sarcomas and a human synovial sarcoma cell line (HS-SY-II).Results and Discussion. Immunoreactivity for basic calponin was detected in the cytoplasm of 6 synovial sarcomas (43% positive). In the basic calponin-positive tumors and the HS-SY-II cells, expression for smooth muscle-specific genes, including basic calponin and SM22alpha , was detected by RT-PCR, suggesting a lineage relationship between synovial sarcoma cells and smooth muscle-like mesenchymal cells.Conclusions. A subset of synovial sarcomas expressing the basic calponin gene and the gene product were identified. The basic calponin may have potential utility as a novel molecular marker identifying certain synovial sarcomas.
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Affiliation(s)
- H Ono
- Department of Orthopaedic Surgery Osaka Medical Center for Cancer and Cardiovascular Diseases 1-3-3, Nakamichi Higashinari-ku Osaka 537-8511 Japan
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156
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Affiliation(s)
- K Uchimoto
- Department of Surgery, Nara Medical University, Nara, Japan.
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157
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Koike T, Ishizaki K, Ogami K, Ueda T, Sakurai K. Influence of anterior palatal coverage on perception and retention in complete dentures. J Prosthet Dent 2011; 105:272-9. [DOI: 10.1016/s0022-3913(11)60043-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Kawasaki H, Suda Y, Ohshima T, Ueda T, Nakashima S. Preparation of Silicon Carbide Nano-Particles Using a Pulsed Laser Deposition Method. ACTA ACUST UNITED AC 2011. [DOI: 10.1557/proc-818-m11.1.1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
AbstractWe have developed a new pulsed laser deposition technique using two Nd:YAG laser beams for the nucleation of silicon carbide (SiC) crystalline nano-particles and single crystalline SiC thin films. Transmission electron microscopy and atomic force microscopy observation suggest that several nanometer size SiC particles can be prepared by the new pulsed laser deposition (PLD) method using two Nd:YAG laser beams (1064nm and 532nm). X ray photoelectron spectroscopy measurements suggest that the silicon/carbon composition ratio of the prepared SiC thin films can be controlled by laser fluence and wavelength.
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159
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Ueda T, Kremer U, Katsoulis J, Mericske-Stern R. Long-term results of mandibular implants supporting an overdenture: implant survival, failures, and crestal bone level changes. Int J Oral Maxillofac Implants 2011; 26:365-372. [PMID: 21483890] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/30/2023] Open
Abstract
PURPOSE The present study summarizes the long-term clinical observations of edentulous patients treated with mandibular implant-supported overdentures. MATERIALS AND METHODS From 1984 to 1997, edentulous patients were consecutively admitted to treatment with mandibular implant overdentures. The treatment plan was to connect the dentures to only two implants by means of single ball anchors or bars; in patients with special oral conditions, three implants would be placed. Regular maintenance care was provided at least one time per year. The cumulative implant survival rate was calculated. Implant failures were described according to clinical signs at the time of removal and related to the patient's specific history. Crestal bone measurements were performed using computer software. RESULTS In all, 147 patients with 314 implants were evaluated for 10 to 24 years. Of these, 101 patients were still available; of the 46 patients who were not evaluated, 26 had died or were not ambulatory. Thirteen implants failed during the observation period, resulting in a cumulative survival rate of 85.9% after 24 years. The reasons for removal of implants were peri-implantitis (two implants) and mobility (11 implants). Mean crestal bone loss was 0.54 ± 0.7 mm per implant site after an average observation time of 16.5 ± 3.9 years. The duration of loading had a statistically significant effect on bone loss. CONCLUSIONS The present data exhibit a satisfactory survival rate of implants. An individual analysis of implants with late failures did not reveal a typical failure pattern, but loss of implants without signs of infection was more frequent than loss of implants with signs of peri-implantitis.
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Affiliation(s)
- Takayuki Ueda
- Department of Prosthodontics, University of Bern, Switzerland
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160
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Ozono S, Ueda T, Hoshi S, Yamaguchi A, Maeda H, Fukuyama Y, Ohashi Y, Tsukamoto T, Naito S, Akaza H. The efficacy and safety of degarelix, a GnRH receptor antagonist: A multicenter, randomized, maintenance dose-finding phase II study with Japanese prostate cancer patients. J Clin Oncol 2011. [DOI: 10.1200/jco.2011.29.7_suppl.154] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
154 Background: Degarelix, a GnRH receptor antagonist inducing rapid, profound and sustained suppression of serum testosterone levels, without testosterone surge, was evaluated in a phase II dose finding study in Japan. Methods: A total of 278 patients with adenocarcinoma of the prostate were randomized and 273 patients (any stage; median age, approx. 76 years; median testosterone, 4.46 ng/mL; median prostate-specific antigen (PSA) level, 22.8 ng/mL) received study treatment. Degarelix was administered subcutaneously at an initial dose of 240 mg followed by monthly maintenance doses of either 80 mg or 160 mg. The treatment continued for 12 months in the study. Results: The primary endpoint was the proportion of patients with testosterone suppression to castrate level of ≤0.5 ng/mL during 12 months treatment. Both dose regimens of 80 mg and 160 mg kept 94.5% and 95.2% of patients on castrate level respectively throughout the treatment period. At 3 days of treatment, approximately 99% of the patients reached the castrate level without testosterone surge. The percentage change in serum PSA reduction exceeded 76% at 4 weeks. The overall tumor response rates (proportion of patients with complete and partial responses) were from 77.4% to 90.8% across the groups. Eighteen patients (6.6%) withdrew from the study due to adverse events. The most common adverse events were injection site reactions; other adverse events included pyrexia, weight increased, hypertension and hot flush. Degarelix appeared well tolerated. Conclusions: With an initial dose of 240 mg followed by monthly maintenance doses of 80 mg or 160 mg, Degarelix resulted in a rapid profound and sustained testosterone suppression to castrate level and PSA reduction without testosterone surge for 12 months. Degarelix was well tolerated. The maintenance doses of 80 mg and 160 mg had similar efficacy and safety profiles. The study shows results similar to those from the degarelix pivotal phase III study (CS21). Assessment of risk-benefit would support the recommendation of the maintenance dose of 80 mg as a safe and effective monthly dose for the treatment of prostate cancer. [Table: see text]
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Affiliation(s)
- S. Ozono
- Department of Urology, Hamamatsu University School of Medicine, Hamamatsu, Japan; Division of Urology, Chiba Cancer Center, Chiba, Japan; Yamagata Prefectural Central Hospital, Yamagata, Japan; Division of Urology, Harasanshin Hospital, Fukuoka, Japan; Development, Astellas Pharma Inc., Tokyo, Japan; Department of Biostatistics, School of Public Health, University of Tokyo, Tokyo, Japan; Department of Urology, School of Medicine, Sapporo Medical University, Sapporo, Japan; Department of Urology, Graduate
| | - T. Ueda
- Department of Urology, Hamamatsu University School of Medicine, Hamamatsu, Japan; Division of Urology, Chiba Cancer Center, Chiba, Japan; Yamagata Prefectural Central Hospital, Yamagata, Japan; Division of Urology, Harasanshin Hospital, Fukuoka, Japan; Development, Astellas Pharma Inc., Tokyo, Japan; Department of Biostatistics, School of Public Health, University of Tokyo, Tokyo, Japan; Department of Urology, School of Medicine, Sapporo Medical University, Sapporo, Japan; Department of Urology, Graduate
| | - S. Hoshi
- Department of Urology, Hamamatsu University School of Medicine, Hamamatsu, Japan; Division of Urology, Chiba Cancer Center, Chiba, Japan; Yamagata Prefectural Central Hospital, Yamagata, Japan; Division of Urology, Harasanshin Hospital, Fukuoka, Japan; Development, Astellas Pharma Inc., Tokyo, Japan; Department of Biostatistics, School of Public Health, University of Tokyo, Tokyo, Japan; Department of Urology, School of Medicine, Sapporo Medical University, Sapporo, Japan; Department of Urology, Graduate
| | - A. Yamaguchi
- Department of Urology, Hamamatsu University School of Medicine, Hamamatsu, Japan; Division of Urology, Chiba Cancer Center, Chiba, Japan; Yamagata Prefectural Central Hospital, Yamagata, Japan; Division of Urology, Harasanshin Hospital, Fukuoka, Japan; Development, Astellas Pharma Inc., Tokyo, Japan; Department of Biostatistics, School of Public Health, University of Tokyo, Tokyo, Japan; Department of Urology, School of Medicine, Sapporo Medical University, Sapporo, Japan; Department of Urology, Graduate
| | - H. Maeda
- Department of Urology, Hamamatsu University School of Medicine, Hamamatsu, Japan; Division of Urology, Chiba Cancer Center, Chiba, Japan; Yamagata Prefectural Central Hospital, Yamagata, Japan; Division of Urology, Harasanshin Hospital, Fukuoka, Japan; Development, Astellas Pharma Inc., Tokyo, Japan; Department of Biostatistics, School of Public Health, University of Tokyo, Tokyo, Japan; Department of Urology, School of Medicine, Sapporo Medical University, Sapporo, Japan; Department of Urology, Graduate
| | - Y. Fukuyama
- Department of Urology, Hamamatsu University School of Medicine, Hamamatsu, Japan; Division of Urology, Chiba Cancer Center, Chiba, Japan; Yamagata Prefectural Central Hospital, Yamagata, Japan; Division of Urology, Harasanshin Hospital, Fukuoka, Japan; Development, Astellas Pharma Inc., Tokyo, Japan; Department of Biostatistics, School of Public Health, University of Tokyo, Tokyo, Japan; Department of Urology, School of Medicine, Sapporo Medical University, Sapporo, Japan; Department of Urology, Graduate
| | - Y. Ohashi
- Department of Urology, Hamamatsu University School of Medicine, Hamamatsu, Japan; Division of Urology, Chiba Cancer Center, Chiba, Japan; Yamagata Prefectural Central Hospital, Yamagata, Japan; Division of Urology, Harasanshin Hospital, Fukuoka, Japan; Development, Astellas Pharma Inc., Tokyo, Japan; Department of Biostatistics, School of Public Health, University of Tokyo, Tokyo, Japan; Department of Urology, School of Medicine, Sapporo Medical University, Sapporo, Japan; Department of Urology, Graduate
| | - T. Tsukamoto
- Department of Urology, Hamamatsu University School of Medicine, Hamamatsu, Japan; Division of Urology, Chiba Cancer Center, Chiba, Japan; Yamagata Prefectural Central Hospital, Yamagata, Japan; Division of Urology, Harasanshin Hospital, Fukuoka, Japan; Development, Astellas Pharma Inc., Tokyo, Japan; Department of Biostatistics, School of Public Health, University of Tokyo, Tokyo, Japan; Department of Urology, School of Medicine, Sapporo Medical University, Sapporo, Japan; Department of Urology, Graduate
| | - S. Naito
- Department of Urology, Hamamatsu University School of Medicine, Hamamatsu, Japan; Division of Urology, Chiba Cancer Center, Chiba, Japan; Yamagata Prefectural Central Hospital, Yamagata, Japan; Division of Urology, Harasanshin Hospital, Fukuoka, Japan; Development, Astellas Pharma Inc., Tokyo, Japan; Department of Biostatistics, School of Public Health, University of Tokyo, Tokyo, Japan; Department of Urology, School of Medicine, Sapporo Medical University, Sapporo, Japan; Department of Urology, Graduate
| | - H. Akaza
- Department of Urology, Hamamatsu University School of Medicine, Hamamatsu, Japan; Division of Urology, Chiba Cancer Center, Chiba, Japan; Yamagata Prefectural Central Hospital, Yamagata, Japan; Division of Urology, Harasanshin Hospital, Fukuoka, Japan; Development, Astellas Pharma Inc., Tokyo, Japan; Department of Biostatistics, School of Public Health, University of Tokyo, Tokyo, Japan; Department of Urology, School of Medicine, Sapporo Medical University, Sapporo, Japan; Department of Urology, Graduate
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161
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Hirata T, Kobayashi T, Wada A, Ueda T, Fujikawa T, Miyashita H, Ikeda T, Tsukamoto S, Nohara T. Anti-obesity compounds in green leaves of Eucommia ulmoides. Bioorg Med Chem Lett 2011; 21:1786-91. [DOI: 10.1016/j.bmcl.2011.01.060] [Citation(s) in RCA: 75] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2010] [Revised: 01/07/2011] [Accepted: 01/18/2011] [Indexed: 11/26/2022]
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Abstract
ABSTRACTStress evolution was studied during growth of Cu/Pd multilayers using an in-situ, laserbased wafer curvature technique which allowed measurement of stress changes associated with sub-monolayer thickness increases. The apparent stress in the Cu layers changes during growth, from compressive, for thickness less than about 0.5 nm, to tensile for thicknesses above this. The stress behavior in the Pd layers depends on the thickness of the underlying Cu layer. Pd deposited on thick (2 nm) Cu layers is under an apparent compressive stress, while Pd deposited on thin (< 1 nm) Cu layers is initially under a tensile stress but changes to a compressive stress at about 0.5 nm. The overall compressive stress maxima observed in multilayers at a bilayer period of 2 nm is explained by this in-situ behavior. The stress behavior in this system is consistent with either island growth of Cu, or thickness dependent alloying behavior, or both.
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Abstract
AbstractGaN films with good crystalline quality are grown on sapphire by atmospheric pressure vapor phase epitaxy using gallium tri-chloride (GaCl3) and ammonia (NH3). Epitaxial growth is carried out over temperature and V/III-ratio ranges of 800–1000°C and 100–1000, respectively. Typical growth rate obtained is in the range of 5–20 μm/hr. The films grown below 925°C typically show three dimensional (island) growth, while above that temperature, continuous films are obtained. Films grown at 975°C with a V/III ratio > 300 exhibit a smooth surface. XRD analysis shows that the films are single crystal with hexagonal polytype. Strong band-edge photoluminescence is observed with a FWHM of 60 meV at room temperature and 25 meV at 77K. The results indicate that this simple growth technique is effective for growing high quality bulk GaN, which can be used as a substrate for subsequent epitaxy. In order to further improve the surface morphology, a preliminary experiment on GaN growth on a thin GaN buffer layer prepared by gas source MBE is also presented.
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164
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Wongwiriyapan W, Okabayashi Y, Minami S, Itabashi K, Ueda T, Shimazaki R, Ito T, Oura K, Honda S, Tabata H, Katayama M. Hydrogen sensing properties of protective-layer-coated single-walled carbon nanotubes with palladium nanoparticle decoration. Nanotechnology 2011; 22:055501. [PMID: 21178258 DOI: 10.1088/0957-4484/22/5/055501] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Protective-layer-coated single-walled carbon nanotubes (SWNTs) with palladium nanoparticle decoration (Pd-SiO(2)-SWNTs) were fabricated and their sensing properties for hydrogen (H(2)) were investigated. SWNTs were coated with a 3-4 nm thick SiO(2) layer by pulsed laser deposition and subsequently decorated with Pd nanoparticles by electron beam evaporation. Even though the SWNTs were completely surrounded by a protective layer, Pd-SiO(2)-SWNTs responded to H(2) down to a concentration of 1 part per million. Compared with the Pd nanoparticle-decorated SWNTs without a protective layer (Pd-SWNTs), Pd-SiO(2)-SWNTs exhibited highly stable sensor responses with variations of less than 20%; Pd-SWNTs showed a variation of 80%. The density of the Pd-SWNTs significantly decreased after the sensing test, while that of the Pd-SiO(2)-SWNTs with the netlike structure remained unchanged. The hydrogen sensing mechanism of the Pd-SiO(2)-SWNTs was attributed to the chemical gating effect on the SWNTs due to dipole layer formation by hydrogen atoms trapped at the Pd-SiO(2) interface. Moreover, the relationship between H(2) concentration and sensor response can be described by the Langmuir isotherm for dissociative adsorption.
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Affiliation(s)
- W Wongwiriyapan
- College of Nanotechnology, King Mongkut's Institute of Technology Ladkrabang, Bangkok, Thailand
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165
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Abstract
Mechanical cleaning of dentures is effective in preventing infections such as aspiration pneumonia and denture stomatitis. For denture wearers with a physical handicap and the elderly, however, mechanical cleaning can present problems. The aim of this study was to investigate the effect of coating denture base acrylic resin with titanium dioxide (TiO(2)) in the inhibition of oral microbial adhesion. We prepared uniformly sized acrylic resin plates (10 mm x 10 mm x 0.5 mm), which were divided into two groups (a non-coated group and a TiO(2)-coated group). The plates were immersed in cultured Streptococcus sanguinis or Candida albicans and incubated for 24 h. After incubation, each plate was washed to remove loosely adherent microorganisms, and then incubated for a further 24 h. Adenosine triphosphate (ATP) content of the microorganisms was evaluated using a reagent containing benzalkonium, which extracts intra-cellular ATP. In addition, to determine biofilm formation, we also observed each plate by scanning electron microscopy (SEM). We found that the ATP content of both S. sanguinis and C. albicans was reduced by the TiO(2) coating (P = 0.000). Observation by SEM confirmed that the TiO(2) coating inhibited biofilm formation. The results indicate that a TiO(2) coating on a denture base acrylic resin inhibits adhesion of S. sanguinis and C. albicans.
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Affiliation(s)
- T Arai
- Department of Removable Prosthodontics and Gerodontology, Tokyo Dental College, Chiba 261-8502, Japan
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166
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Matsumoto H, Niimi A, Takemura M, Ueda T, Yamaguchi M, Matsuoka H, Jinnai M, Takeda T, Otsuka K, Oguma T, Handa T, Hirai T, Chin K, Mishima M. Long-term changes in airway-wall thickness on computed tomography in asthmatic patients. J Investig Allergol Clin Immunol 2011; 21:113-119. [PMID: 21462801] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/30/2023] Open
Abstract
BACKGROUND Effects of long-term treatment with inhaled corticosteroids (ICSs) on airway-wall thickness in patients with asthma remain unknown. OBJECTIVES To determine whether airway-wall thickness consistently decreases after long-term ICS treatment, and to analyze factors contributing to long-term airway-wall changes in asthmatics. METHODS A retrospective analysis of long-term changes in airway-wall thickness using computed tomography was performed in 14 patients with asthma. Wall area corrected by body surface area (WA/BSA) was examined at baseline, 12 weeks after the commencement of ICSs (second measurement), and at least 2 years (mean +/- SEM. 4.2 +/- 0.5) after the second measurement (third measurement). Mean +/- SEM changes in WA/BSA from the second to the third measurements were analyzed. RESULTS The mean change in WA/BSA was not significant between the second and the third measurements (-0.27 +/- 0.59 mm2/m2/y). Overall, the changes were significantly associated with disease duration but not with other clinical indices. When the 14 patients were divided into 2 groups using a cutoff value of 0.32 mm2/m2/y for the mean change in WA/BSA, for the 5 patients whose WA/BSA exceeded this cutoff, daily ICS doses were not reduced and both forced expiratory volume in the first second (FEV1) and forced vital capacity decreased significantly. For the remaining 9 patients, daily ICS doses were reduced and long-term FEV1 values did not change. CONCLUSIONS Despite long-term treatment with ICSs, airway-wall thickness did not consistently decrease. One possible mechanism underlying poor response to long-term treatment may be long-standing asthma.
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Affiliation(s)
- H Matsumoto
- Department of Respiratory Medicine, Graduate School of Medicine, Kyoto University, Kyoto, Japan.
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167
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Abe A, Ueda T, Ueda M, Nogoshi S, Nishiyama Y, Katayama Y. Recovery of cerebrovascular reserves after stenting for symptomatic carotid artery stenosis. Interv Neuroradiol 2010; 16:420-8. [PMID: 21162772 DOI: 10.1177/159101991001600408] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2010] [Accepted: 10/11/2010] [Indexed: 11/16/2022] Open
Abstract
Although a decrease in cerebrovascular reserves (CVR) is known to enhance the risk of stroke, changes in this parameter after carotid artery stenting (CAS) have rarely been investigated. The present study is the first to compare CVR recoveries after applying CAS to patients with symptomatic carotid artery disease. CAS was performed for 31 consecutive patients with symptomatic carotid artery disease. They underwent acetazolamide-challenged single photon emission computed tomography (SPECT) before and after CAS to obtain data on resting stage cerebral blood flow (CBF(rest) values) in various regions of interest (ROIs) defined by a three-dimensional stereotactic ROI template. CVR values on ipsilateral and contralateral hemispheric sides were then calculated based on the CBF(rest) data. The 31 patients were dichotomized into unilateral (n=22) and bilateral (n=9) lesion groups, and no significant between-group differences were observed in CBF(rest) before and after CAS. In the unilateral group, there were no differences in CVR values before and after CAS. In the bilateral group, however, the CVR values significantly increased in nearly all the investigated ROIs on the contralateral side. Also, the hemispheric CVR values on both sides significantly increased after CAS in the bilateral group, while no such increase was observed in the unilateral group. CAS in patients with symptomatic bilateral carotid artery disease has the potential utility for their haemodynamic improvement even on the contralateral hemispheric side.
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Affiliation(s)
- A Abe
- Department of Strokology, Yokohama Brain and Stroke Center, Kanagawa, Japan.
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168
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Ueda T, Furuno M, Enokizono C. Surface Modified Porous Glass Microspheres As Carrier of Environmental Microorganisms Producing Potential Fuel Gas. J Biotechnol 2010. [DOI: 10.1016/j.jbiotec.2010.08.052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Mattera L, Chevillard-Briet M, Philippe M, Corpet D, Ueda T, Fukunaga R, Trouche D, Escaffit F. R68: Contrôle de la formation des lésions prénéoplasiques coliques par le ratio Tip60/p400 : preuve de principe in vivo d’une nouvelle cible thérapeutique. Bull Cancer 2010. [DOI: 10.1016/s0007-4551(15)30985-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Abstract
The purpose of this study was to clarify age-related changes in the elastic properties and moisture content of the lower labial mucosa. Elastic properties and moisture content were also compared between the lower labial mucosa and skin. A total of 85 adults aged 20-82 took part in the study. Elastic properties (distensibility and elasticity) and moisture content of lower labial mucosa and skin were determined in each participant. Measurements for the oral mucosa were taken at the midline of the lower labial mucosa; for the skin, they were taken at the midpoint of the right anterior surface of the forearm. Pearson's correlation coefficient and the Mann-Whitney U test were used for the statistical analysis. A stepwise multiple linear regression analysis was also performed, with age as the dependent variable and sex, distensibility, elasticity and moisture content of the lower labial mucosa as independent variables. A negative correlation was found between age and distensibility of the lower labial mucosa. No correlation was observed between age and elasticity of the lower labial mucosa. A negative correlation was observed between age and moisture content of the lower labial mucosa. A significant difference was observed in moisture content between the 20- to 39-year-old group and the over 40-year-old group. Stepwise analysis identified distensibility and moisture content of the lower labial mucosa as predictive factors of age. The results indicate that distensibility and moisture content of the lower labial mucosa decrease with age. Moisture content in the over 40-year-old group, in particular, was lower than in the 20- to -30-year-old group.
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Affiliation(s)
- K Nakagawa
- Department of Removable Prosthodontics and Gerodontology, Tokyo Dental College, Chiba, Japan
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171
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Higashiyama M, Hokari R, Kurihara C, Ueda T, Nakamura M, Komoto S, Okada Y, Watanabe C, Kawaguchi A, Nagao S, Miura S. Interferon-α increases monocyte migration via platelet-monocyte interaction in murine intestinal microvessels. Clin Exp Immunol 2010; 162:156-62. [PMID: 20659125 DOI: 10.1111/j.1365-2249.2010.04222.x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023] Open
Abstract
The aim of this study was to investigate the effect of interferon (IFN)-α on recruitment of platelets and monocytes within the murine small intestinal venular endothelium. Monocytes were isolated from bone marrow of C57B6 mice. Platelets were collected from murine blood. Rolling and adhesion to submucosal microvessels in the small intestine were examined under an intravital fluorescence microscope after injection of fluorescein-labelled monocytes or platelets. In some mice, IFN-α (5×10(5) U/kg) was administered intraperitoneally. After treatment with an antibody against P-selectin, changes in monocyte and platelet migration were also investigated. Changes in monocyte migration under the condition of thrombocytopenia were also investigated. Platelets and monocytes interacted with murine intestinal microvessels, although only few platelets and monocytes showed migration behaviour. Intraperitoneal injection of IFN-α enhanced the migration of both platelets and monocytes in the intestinal microvessels. Pretreatment with anti-P-selectin attenuated the increase in migration of platelets and monocytes induced by administration of IFN-α. Thrombocytopenia decreased the rolling ratio of monocytes, suggesting that the effect of IFN-α on migration was P-selectin-dependent, derived from both the endothelium of microvessels and platelets. The results of this study suggest that IFN-α acts as a potent proinflammatory agent via its stimulatory effect on the endothelium-platelet-monocyte interaction in intestinal microvessels by a P-selectin-dependent mechanism.
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Affiliation(s)
- M Higashiyama
- Department of Internal Medicine, National Defense Medical College, Saitama, Japan
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172
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Ueda T, Takagi I, Ueda-Kodaira Y, Sugiyama T, Hirose N, Ogami K, Mori K, Sakurai K. Color differences between artificial and natural teeth in removable partial denture wearers. Bull Tokyo Dent Coll 2010; 51:65-8. [PMID: 20689236 DOI: 10.2209/tdcpublication.51.65] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
The purpose of this study was to investigate differences between natural tooth color and that selected for artificial teeth in partial dentures at our department with a view to establishing criteria for obtaining greater harmonization between colors. The participants in this study comprised partial denture wearers visiting the Department of Prosthodontics, Tokyo Dental College Chiba Hospital, in whom both artificial teeth and natural teeth were present in the maxillary anterior tooth area. Natural tooth color was measured according to VITA classical shade guide number using a dental color measurement apparatus. Artificial tooth color in partial dentures produced at our department was investigated by referring to medical records. Color of 28 participants' natural teeth and 345 participants' artificial teeth was investigated. Differences in color distribution between the natural and artificial tooth were analyzed using the Fisher exact test. The most frequent color of natural tooth was C-type, accounting for 39%, followed by D- at 32%, A-at 22% and B-type at 7%. In terms of artificial tooth color, A-type was the most common (97%). The color distribution of natural teeth differed significantly from that of artificial teeth in partial dentures. These results suggest that artificial tooth color did not harmonize with the color of the natural teeth in partial denture wearers.
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Affiliation(s)
- Takayuki Ueda
- Department of Removable Prosthodontics and Gerodontology, Tokyo Dental College, Mihama-ku, Chiba, Japan.
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173
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Okada C, Ueda T, Sakurai K. Blood flow in denture-supporting maxillary mucosa in response to simulated mastication by loading. J Prosthodont Res 2010; 54:159-63. [PMID: 20392684 DOI: 10.1016/j.jpor.2010.03.001] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2009] [Revised: 02/15/2010] [Accepted: 03/10/2010] [Indexed: 10/19/2022]
Abstract
PURPOSE The purpose of this study was to determine the effect of number of chewing strokes on change in blood flow in denture-supporting maxillary mucosa. METHODS Subjects consisted of 11 healthy dentate men. Mastication was simulated by intermittent loading (10 N, 1/0.75 Hz) on a lateral area of the hard palate using a 2-cm(2) test plate. Loading duration was set at 1, 4, 8 or 12 min (80, 320, 640 or 960 chewing strokes). A non-contact laser Doppler blood flow meter was used to determine change in blood flow and time taken for recovery to 110% of the pre-loading value. Mean blood flow at pre-loading and at each duration of intermittent loading were compared using a repeated measures ANOVA (α=0.05) and the Dunnett test. Recovery times for each loading duration were compared using a one-way ANOVA (α=0.05) and the Bonferroni-test. RESULTS Three subjects showed no increase in mean blood flow with loading. Eight subjects consistently showed an increase in mean blood flow during intermittent loading relative to at pre-loading. Duration of loading yielded no significant difference in mean blood flow. Significant differences were observed in recovery time between at after 8 min loading and at after the other 3 loading (1, 4, and 12 min loading) durations. CONCLUSION Number of simulated chewing strokes showed no influence on mean blood flow during intermittent loading in denture-supporting mucosa. It did, however, affect recovery time taken for blood flow to return to its pre-loading level.
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Affiliation(s)
- China Okada
- Department of Removable Prosthodontics and Gerodontology, Tokyo Dental College, 1-2-2 Masago, Mihama-ku, Chiba city, Chiba 261-8502, Japan.
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174
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Kamei K, Yasuda T, Ueda T, Qiang F, Shiozaki H, Ohyanagi H, Takeyama Y. Significant expression of interleukin 15 in rat experimental severe acute pancreatitis. Eur Surg Res 2010; 44:159-69. [PMID: 20332642 DOI: 10.1159/000283241] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2009] [Accepted: 02/04/2010] [Indexed: 11/19/2022]
Abstract
PURPOSE In severe acute pancreatitis (SAP), multiple organ dysfunction syndrome is a contributor to high mortality. We recently demonstrated that the serum interleukin (IL)-15 level is a predictor of the complications and mortality in clinical SAP. The aim was to investigate the role of IL-15 in experimental SAP. MATERIALS AND METHODS SAP was induced by retrograde injection of 3 and 20% sodium deoxycholate (DCA) into biliopancreatic ducts in rats (DCA pancreatitis). Expressions of IL-15 were evaluated by Western blotting and immunohistochemical staining. Recombinant IL-15 protein was administered intraperitoneally, and the effects were investigated. RESULTS Western blotting revealed the expressions of IL-15 in the pancreas, liver, lung and intestine in 3% DCA pancreatitis. Immunohistochemical staining showed the expression of IL-15 in the cytoplasm of each organ. In 3% DCA pancreatitis, administration of recombinant IL-15 protein attenuated the elevation of serum alanine aminotransferase (ALT) levels and improved the morphological change of the lung 18 h after the induction of SAP. Moreover, in 20% DCA pancreatitis, IL-15 improved the elevation of serum amylase and ALT levels 6 h after the induction. CONCLUSIONS These results suggest that IL-15 is related to organ dysfunction during SAP, and that IL-15 functions as a protective factor against the organ injuries.
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Affiliation(s)
- K Kamei
- Department of Surgery, Kinki University School of Medicine, Osaka-Sayama, Japan
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175
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Muramatsu M, Kitagawa A, Drentje AG, Hojo S, Ueda T, Miyazaki H, Yusa K, Tashiro M, Torikai K, Sakama M, Kanai T, Yamada S. The compact electron cyclotron resonance ion source KeiGM for the carbon ion therapy facility at Gunma University. Rev Sci Instrum 2010; 81:02A327. [PMID: 20192348 DOI: 10.1063/1.3273055] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
A high-energy carbon-ion radiotherapy facility is under construction at Gunma University Heavy Ion Medical Centre (GHMC). Its design was based on a study of the heavy ion radiotherapy at the National Institute of Radiological Sciences (NIRS) in order to reduce the size and construction cost of the facility. A compact electron cyclotron resonance ion source (ECRIS) for Gunma University, called KeiGM, was installed in 2008. It is almost a copy of the prototype ECRIS Kei2 which was developed by NIRS; meanwhile this prototype produced over 1 e mA of C(4+) using C(2)H(2) gas (660 W and 40 kV). The beam intensity of C(4+) was 600 e microA with CH(4) gas (250 W and 30 kV). The beam intensity satisfies the required value of 300 e microA.
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Affiliation(s)
- M Muramatsu
- National Institute of Radiological Sciences, 4-9-1 Anagawa, Inage, Chiba 263-8555, Japan.
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176
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Ryu M, Ueda T, Saito T, Yasui M, Ishihara K, Sakurai K. Oral environmental factors affecting number of microbes in saliva of complete denture wearers. J Oral Rehabil 2009; 37:194-201. [PMID: 20050985 DOI: 10.1111/j.1365-2842.2009.02042.x] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
The purpose of this study was to clarify which oral environmental factors affected number of microbes in saliva in an edentulous environment. We enrolled 68 edentulous subjects in the study. Numbers of total anaerobic bacteria and Candida species in saliva were determined. Age, sex, un-stimulated salivary flow rate, pH and viscosity of saliva, histatin level in saliva, tongue coating status, tongue pressure, denture plaque status, material of denture base, duration of edentulism, frequency of self oral health care and number of cigarettes per day were also investigated as oral environmental factors. Correlation between number of total anaerobic bacteria or Candida species and each oral environmental factor was determined with the Spearman rank correlation coefficient. Stepwise logistic regression analysis was used to identify which factors were significantly associated with level of total anaerobic bacteria and Candida species. Correlation and stepwise logistic regression analyses revealed associations between un-stimulated salivary flow rate, tongue coating status, denture plaque status or frequency of self oral health care and number of total anaerobic bacteria. The correlation analysis showed a significant correlation between age and number of total anaerobic bacteria. Stepwise logistic analysis revealed associations between pH of saliva or viscosity of saliva and level of anaerobic bacteria; it also revealed associations between histatin level in saliva or un-stimulated salivary flow rate and level of Candida species. We conclude that salivary flow rate, in particular, affects number of salivary microbes in an edentulous environment.
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Affiliation(s)
- M Ryu
- Oral Health Science Center, Tokyo Dental College, Chiba, Japan.
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177
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Moslehi R, Signore C, Tamura D, Mills JL, Digiovanna JJ, Tucker MA, Troendle J, Ueda T, Boyle J, Khan SG, Oh KS, Goldstein AM, Kraemer KH. Adverse effects of trichothiodystrophy DNA repair and transcription gene disorder on human fetal development. Clin Genet 2009; 77:365-73. [PMID: 20002457 DOI: 10.1111/j.1399-0004.2009.01336.x] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The effects of DNA repair and transcription gene abnormalities in human pre-natal life have never been studied. Trichothiodystrophy (TTD) is a rare (affected frequency of 10(-6)) recessive disorder caused by mutations in genes involved in nucleotide excision repair (NER) pathway and in transcription. Based on our novel clinical observations, we conducted a genetic epidemiologic study to investigate gestational outcomes associated with TTD. We compared pregnancies resulting in TTD-affected offspring (n = 24) with respect to abnormalities during their antenatal and neonatal periods to pregnancies resulting in their unaffected siblings (n = 18), accounting for correlation, and to population reference values. Significantly higher incidence of several severe gestational complications was noted in TTD-affected pregnancies. Small for gestational age (SGA) <10th percentile [Relative risk (RR ) = 9.3, 95% CI = 1.4-60.5, p = 0.02], SGA <3rd percentile (RR = 7.2, 95% CI = 1.1-48.1, p = 0.04), and neonatal intensive care unit (NICU) hospitalization (RR = 6.4, 95% CI = 1.4-29.5, p = 0.02) occurred more frequently among TTD-affected neonates compared with their unaffected siblings. Compared with reference values from general obstetrical population, pregnancies that resulted in TTD-affected infants were significantly more likely to be complicated by hemolysis, elevated liver enzymes and low platelets (HELLP) syndrome (RR = 35.7, 95% CI = 7.6-92.5, p = 0.0002), elevated mid-trimester maternal serum human chorionic gonadotropin (hCG) levels (RR = 14.3, 95% CI = 7.0-16.6, p < 0.0001), SGA <3rd percentile (RR = 13.9, 95% CI = 7.4-21.1, p < 0.0001), pre-term delivery (<32 weeks) (RR = 12.0, 95% CI = 4.9-21.6, p < 0.0001), pre-eclampsia (RR = 4.0, 95% CI = 1.6-7.4, p = 0.006), and decreased fetal movement (RR = 3.3, 95% CI = 1.6-5.2, p = 0.0018). Abnormal placental development is an underlying mechanism that may explain the constellation of observed complications in our study. Thus, we hypothesize that TTD DNA repair and transcription genes play an important role in normal human placental development.
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Affiliation(s)
- R Moslehi
- Biostatistics Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Department of Health and Human Services, Bethesda, MD, USA.
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178
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Watanabe A, Obata T, Ikehira H, Ueda T, Moriya H, Wada Y. Degeneration of patellar cartilage in patients with recurrent patellar dislocation following conservative treatment: evaluation with delayed gadolinium-enhanced magnetic resonance imaging of cartilage. Osteoarthritis Cartilage 2009; 17:1546-53. [PMID: 19481191 DOI: 10.1016/j.joca.2009.05.001] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/29/2008] [Revised: 04/16/2009] [Accepted: 05/04/2009] [Indexed: 02/02/2023]
Abstract
OBJECTIVE To examine the characteristics of cartilage degeneration in patients with recurrent patellar dislocation (RPD) following conservative treatment using delayed gadolinium-enhanced magnetic resonance imaging (MRI) of cartilage (dGEMRIC). DESIGN This study evaluated three groups of knees: group I, 35 knees from both knees of patients with bilateral RPD and dislocated side knees of patients with unilateral RPD; group II, 15 non-dislocated side knees of patients with unilateral RPD; and group III, 20 knees from both knees of healthy volunteers. Differences in post-contrast T1 [T1(Gd)] of cartilage at both medial and lateral facets between groups I, II and III were analyzed. For group I, possible relationships were evaluated between T1(Gd) of cartilage and patient age, length of time between the initial dislocation and MRI and the total number of dislocations between the initial dislocation and MRI for both medial and lateral facets. RESULTS The mean T1(Gd) of cartilage at medial facets for groups I, II and III were 411+/-46ms, 465+/-38ms and 490+/-29ms, respectively; there were significant differences between these means (P<0.05). The mean T1(Gd) of cartilage at lateral facets for groups I, II and III were 426+/-53ms, 466+/-45ms and 510+/-36ms, respectively; there were also significant differences between these means (P<0.05). Significant correlations were observed between T1(Gd) of cartilage for both medial and lateral facets and length of time between the initial dislocation and MRI (P<0.05). No other correlations were significant. CONCLUSION dGEMRIC may be a useful method to monitor glycosaminoglycan concentration in patients with RPD following conservative treatment.
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Affiliation(s)
- A Watanabe
- Department of Radiology, Teikyo University Chiba Medical Center, Chiba, Japan.
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179
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Fukunaga S, Ueda T, Mori R, Shintani Y, Nata S, Mikasa K, Kanaya K, Akashi H, Aoyagi S. [Long-term results of aortic root replacement with a composite graft]. Kyobu Geka 2009; 62:947-951. [PMID: 19827546] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
We analyzed the long-term results of aortic root replacement with a composite graft. Since 1992, 127 patients had undergone aortic root replacement with a composite graft. There were 92 men and 35 women with a mean age of 56.5 years. There were 69 patients with annuloaortic ectasia, 17 aortic dissections, and 41 ascending aortic dilatation due to aortic valve disease. Marfan syndrome was diagnosed in 19 patients. As surgical procedure, button technique was used in 90 patients, Cabrol technique in 11, and Piehler technique in 26. Open distal anastomosis was performed in 82 patients to avoid clamp injury of rest aorta. Early mortality was 3.1% and no major morbid events had occurred. Follow-up was completed in 95.9% of the patients and the mean follow-up period was 6.1 years. Actuarial survival at 5, 10, and 15 years was 86.2%, 83.4%, and 83.4%, respectively. Actuarial freedom from aortic valve reoperation at 10 and 15 years was 99.2% and 95.7%, respectively. The results of aortic root replacement with a composite graft were excellent. This procedure should be the 1st choice for surgical treatment of the aortic root disease.
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Affiliation(s)
- Shuji Fukunaga
- Department of Surgery, Kurume University School of Medicine, Kurume, Japan
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180
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Kawamura K, Suzuki H, Utsumi T, Kamiya N, Imamoto T, Yano M, Nakatsu H, Ueda T, Mikami K, Ichikawa T. UP-1.108: Development of a New Nomogram for Predicting the Probability of a Positive Initial Prostate Biopsy in Japanese Patients with Serum PSA Levels Less Than 10 ng/ml. Urology 2009. [DOI: 10.1016/j.urology.2009.07.555] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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181
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Abstract
A 67-year-old man was admitted with a 2-year history of dropped head. Neurological examination revealed ptosis, dysarthria, neck weakness, hyporeflexia of all limbs, and autonomic failure. Electrophysiologic study showed a 400% increment response to high-rate repetitive nerve stimulation. Serum anti-P/Q-voltage-gated calcium channel antibody was positive, confirming the diagnosis of Lambert-Eaton myasthenic syndrome (LEMS). His symptoms and electrophysiological abnormalities improved with oral prednisolone following plasmapheresis. This is the first report of LEMS as a cause of dropped head syndrome.
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Affiliation(s)
- T Ueda
- Department of Neurology, Kobe University Hospital, Kobe, Japan.
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182
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Yamashita T, Arai K, Sunagozaka H, Ueda T, Terashima T, Mizukoshi E, Sakai A, Nakamoto Y, Honda M, Kaneko S. Randomized, phase II study comparing interferon combined 5-fluorouracil plus cisplatin hepatic arterial infusion with interferon combined 5-fluorouracil hepatic arterial infusion in patients with advanced hepatocellular carcinoma. J Clin Oncol 2009. [DOI: 10.1200/jco.2009.27.15_suppl.4588] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
4588 Background: This randomized phase II trial compared the response rate (RR) of interferon (IFN) combined 5-fluorouracil (5FU) plus cisplatin (CDDP) hepatic arterial infusion (HAI) with IFN combined 5FU HAI in advanced hepatocellular carcinoma. Methods: Patients (pts) with measurable histologically or radiologically confirmed advanced hepatocellular carcinoma (major vascular invasion and/or bilobular multiple ≥5 nodules) were randomized into 2 groups. Arm A (n=57): continuous 5FU HAI (300mg/m2 day1–5, day8–12), CDDP HAI (20mg/m2, day 1, day 8 for 1.5 hours). IFN alpha-2b (3M IU/body) was administrated intramuscularly 3 times per week for 4 weeks. The treatment cycles repeated for 6 weeks. Arm B (n=57): IFN combined 5FU HAI with same dose without CDDP infusion. Treatment was continued until disease progression. The primary endpoint was RR. The secondary endpoints were overall survival (OS), time to progression (TTP) and toxicity. Results: Results for responses are presented for 109 pts and toxicity for 114 pts. The best overall response rate (RR) was 46% for group A and 25% for group B. This included 1 (2% of group A) vs. 3 (6% of group B) complete responses, and 25 (44% of group A) vs. 11 (19% of group B) partial responses. Fifteen pts in group A (26%) vs. 19 pts (33%) in group B had stable disease and 13 pts (23%) vs. 22 (39%) in respectively group A and B progressed while on treatment. RR was significantly higher in group A (p=0.02). The median TTP was 6.5 ± 2.0 months (mo) for group A vs. 3.3 ± 2.0 mo for group B (p=0.005). The median OS was 17.6 ± 3.2 mo for group A vs. 10.5 ±2.3 mo for group B (p=0.38). The median OS was 13.7 ± 4.9 mo for both groups. Grade 3/4 toxicity occurred in 65.8% of pts. Hematological toxicity was common and occurred in 53.5%. The thrombocytopenia and infusion port-related toxicity occurred more frequently in group A. Conclusions: IFN combined 5FU plus CDDP HAI shows higher antitumor activity and longer TTP than IFN combined 5FU HAI. Although OS is also longer without significant difference, these results show the clinical efficacy of additional CDDP to IFN combined 5FU HAI. No significant financial relationships to disclose.
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Affiliation(s)
| | - K. Arai
- Kanazawa University, Kanazawa, Japan
| | | | - T. Ueda
- Kanazawa University, Kanazawa, Japan
| | | | | | - A. Sakai
- Kanazawa University, Kanazawa, Japan
| | | | - M. Honda
- Kanazawa University, Kanazawa, Japan
| | - S. Kaneko
- Kanazawa University, Kanazawa, Japan
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183
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Ueda T, Toyama T, Seki R, Hoshizaki H, Oshima S, Taniguchi K, Endo K, Kurabayashi M. Prediction of Functional Outcome in Stunned Myocardium after Myocardial Infarction using BMIPP and Tetrofosmin Imaging. J Int Med Res 2009; 37:367-77. [DOI: 10.1177/147323000903700211] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
The predictive value of combined 123iodine-labelled 15-( p-iodophenyl)-3 R,S-methyl pentadecanoic acid imaging (123I-BMIPP) and early technetium-99m (99mTc)-tetrofosmin imaging was compared with combined 123I-BMIPP and delayed 99mTc-tetrofosmin or 123I-BMIPP and thallium-201 (201Tl) imaging for functional outcome of stunned myocardium after acute myocardial infarction (AMI) in 37 patients with AMI. All patients underwent successful percutaneous coronary intervention with/without stenting within 24 h of symptoms. Resting 201Tl, 99mTc-tetrofosmin and 123I-BMIPP imaging were performed within 10 days of hospital admission; 99mTc-tetrofosmin imaging was also performed 6 months later. Segments were mismatched when the 123I-BMIPP score was greater than the 99mTc-tetrofosmin or 201Tl scores, and were matched when all scores were the same. Left ventricular function was estimated using wall motion score. Sensitivity and regional wall motion were significantly better in mismatching 99mTc-tetrofosmin-early/123I-BMIPP segments than mismatching 201Tl/123I-BMIPP or 99mTc-tetrofosmin-delayed/123I-BMIPP segments. It is concluded that mismatching of 123I-BMIPP and early 99mTc-tetrofosmin uptake can predict improvement in wall motion of stunned myocardium better than the other two imaging combinations.
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Affiliation(s)
- T Ueda
- Department of Medicine and Biological Science, Gunma University, Gunma, Japan
| | - T Toyama
- Gunma Prefectural Cardiovascular Centre, Maebashi, Japan
| | - R Seki
- Gunma Prefectural Cardiovascular Centre, Maebashi, Japan
| | - H Hoshizaki
- Gunma Prefectural Cardiovascular Centre, Maebashi, Japan
| | - S Oshima
- Gunma Prefectural Cardiovascular Centre, Maebashi, Japan
| | - K Taniguchi
- Gunma Prefectural Cardiovascular Centre, Maebashi, Japan
| | - K Endo
- Department of Diagnostic Radiology and Nuclear Medicine, Gunma University, Gunma, Japan
| | - M Kurabayashi
- Department of Medicine and Biological Science, Gunma University, Gunma, Japan
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184
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Suyama T, Ueda T, Fukasawa S, Imamura Y, Nakamura K, Miyasaka K, Sazuka T, Egoshi KI, Nihei N, Hamano M, Ichikawa T, Maruoka M. Combination of Gemcitabine and Paclitaxel as Second-line Chemotherapy for Advanced Urothelial Carcinoma. Jpn J Clin Oncol 2009; 39:244-50. [DOI: 10.1093/jjco/hyp003] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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185
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Irie S, Tsujimura A, Miyagawa Y, Ueda T, Matsuoka Y, Matsui Y, Okuyama A, Nishimune Y, Tanaka H. Single-Nucleotide Polymorphisms of the PRDM9 (MEISETZ) Gene in Patients With Nonobstructive Azoospermia. ACTA ACUST UNITED AC 2009; 30:426-31. [DOI: 10.2164/jandrol.108.006262] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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186
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Matsumine A, Kusuzaki K, Nakamura T, Nakazora S, Niimi R, Matsubara T, Uchida K, Murata T, Kudawara I, Ueda T, Naka N, Araki N, Maeda M, Uchida A. Differentiation between neurofibromas and malignant peripheral nerve sheath tumors in neurofibromatosis 1 evaluated by MRI. J Cancer Res Clin Oncol 2008; 135:891-900. [DOI: 10.1007/s00432-008-0523-y] [Citation(s) in RCA: 74] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2008] [Accepted: 11/19/2008] [Indexed: 11/30/2022]
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187
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Sotokawa M, Nishiya Y, Hoshino S, Ueda T, Saitou N, Murata A, Yusa H, Tateishi M, Usuda K, Nagata Y, Miwa A, Uchiyama A. [Huge right atrial myxoma]. Kyobu Geka 2008; 61:1035-1038. [PMID: 19048903] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Myxomas are account for approximately half of primary cardiac tumors, and 75% cases originate in left atrium. We report our experience of a right atrial myxoma. A 68-year-old woman was referred to us due to anorexia, general fatigue and facial edema. Echocardiogram, computed tomography (CT), magnetic resonance imaging (MRI), and catheter angiocardiogram revealed a huge tumor in right atrium. The tumor was resected completely with the attached right atrial free wall under cardiopulmonary bypass. Pathological examination showed myxomatous tissue. Postoperative course was uneventful. She discharged the hospital on the 37th day after the operation, and is now doing well without any symptoms.
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Affiliation(s)
- M Sotokawa
- Department of Cardiovascular Surgery, Toyama Prefectural Central Hospital, Toyama, Japan
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188
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Ihara K, Uejima T, Goh T, Ito E, Sunada M, Ueda T, Nakano A, Wakatsuki S. Vps9 assisted guanine nucleotide exchange intermediates of Rab5. Acta Crystallogr A 2008. [DOI: 10.1107/s010876730808937x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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189
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Bhuiyan MMH, Katsuki S, Ueda T, Ikegami T. Improvement in the Sensitivity of SnO 2 Thin Film Based NO x Gas Sensor by Loading with Single-Walled Carbon Nanotube Prepared by Pulsed Laser Deposition Process. ACTA ACUST UNITED AC 2008. [DOI: 10.1166/sl.2008.451] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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190
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Ueda T, Naito S, Uozumi J, Yasumasu T, Kumazawa J. The Value of Adjunctive Nephrectomy in Patients with Stage IV Renal Cell Carcinoma. Aktuelle Urol 2008. [DOI: 10.1055/s-2008-1058362] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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191
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Nagaoka T, Togashi T, Saito K, Takahashi M, Ito K, Ueda T, Osada H, Ito H, Watanabe S. An anatomically realistic voxel model of the pregnant woman and numerical dosimetry for a whole-body exposure to RF electromagnetic fields. Conf Proc IEEE Eng Med Biol Soc 2008; 2006:5463-7. [PMID: 17946307 DOI: 10.1109/iembs.2006.260807] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
The numerical dosimetry of pregnant women is one of the most important issues in electromagnetic-field safety. We have recently developed a whole-body numerical female model of an adult Japanese (non-pregnant) average figure. Therefore, a new fetus model including inherent tissues of pregnant women was constructed based on abdominal MRI data of a 7-month pregnant woman. A whole-body pregnant woman model was developed by combining the new fetus and the female models. The anatomical details of the developed pregnant woman model and basic SAR characteristics for whole-body exposure to RF electromagnetic fields are demonstrated.
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Affiliation(s)
- T Nagaoka
- National Institute of Information & Communication Technology, Koganei, Tokyo, Japan
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192
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Takai N, Ueda T, Nishida M, Nasu K, Narahara H. Bowel obstruction due to endometriosis in the rectovaginal septum. CLIN EXP OBSTET GYN 2008; 35:295-296. [PMID: 19205449] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
It is very rare that endometriotic lesions in the rectovaginal septum cause ileus. We report a case of bowel obstruction due to endometriotic lesions in the rectovaginal septum in a 22-year-old woman whose barium enema presented with apple-core-like findings. Diagnostic and treatment modalities were discussed. Preoperative and postoperative gonadotropin-releasing hormone analog and aromatase inhibitor therapy promote relief of clinical symptoms, a reduction of tumor volume and a better approach to radical surgery.
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Affiliation(s)
- N Takai
- Department of Obstetrics and Gynecology, Oita University Faculty of Medicine, Oita, Japan.
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193
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Kodaira Y, Ueda T, Takagi I, Ishizaki K, Sasaki M, Fujiseki M, Sakurai K. Influence of Palatal Plate on Tongue Pressure during Swallowing. ACTA ACUST UNITED AC 2008. [DOI: 10.2186/prp.7.40] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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194
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Yamaguchi M, Niimi A, Matsumoto H, Ueda T, Takemura M, Matsuoka H, Jinnai M, Otsuka K, Oguma T, Takeda T, Ito I, Chin K, Mishima M. Sputum levels of transforming growth factor-beta1 in asthma: relation to clinical and computed tomography findings. J Investig Allergol Clin Immunol 2008; 18:202-206. [PMID: 18564632] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/26/2023] Open
Abstract
BACKGROUND Transforming growth factor (TGF) beta1 is considered to play central roles in the pathogenesis of airway remodeling in asthma. This notion is based primarily on the results of experimental studies; clinical evidence is limited. OBJECTIVES To ascertain the involvement of TGF-beta1 in asthma. METHODS We studied 27 patients with moderate-to-severe, but stable, asthma treated with inhaled corticosteroids and 8 healthy controls. Helical computed tomography scans were acquired at full inspiration. Airway wall thickness (WT) was assessed on the basis of wall area corrected for body surface area (WA/BSA) and absolute WT corrected for BSA (WT/square root of BSA) according to a validated method. Induced sputum concentrations of TGF-beta1 were measured by enzyme-linked immunosorbent assay. Pulmonary function was evaluated. RESULTS Indices of expiratory airflow were significantly lower in the asthmatic patients than in the controls. WA/BSA, WT/square root of square root of BSA, and sputum concentrations of TGF-beta1 were significantly higher in the asthmatic patients. Sputum TGF-beta1 concentrations correlated positively with WA/BSA and WT/square root of BSA and negatively with forced expiratory volume in 1 second in both asthmatic and control subjects. CONCLUSIONS Levels of TGF-beta1 in induced sputum are elevated in asthmatic patients despite treatment with inhaled corticosteroids and are associated with airflow obstruction and airway wall thickening. TGF-beta1 is involved in the pathogenesis of airway remodeling and resultant functional impairment and it may be a target for specific medical treatment.
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Affiliation(s)
- M Yamaguchi
- Department of Respiratory Medicine, Kyoto University Graduate School of Medicine, Kyoto, Japan
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195
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Tran TP, Wang L, Vo DV, Kameyama H, Ueda T, Wada C, Uchiyama C. Development of Platinum Catalyst on an Extremely Thin Alumite Film for VOC Catalytic Combustion. J Chem Eng Japan 2008. [DOI: 10.1252/jcej.07we319] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Thanh Phong Tran
- Department of Chemical Engineering, Tokyo University of Agriculture and Technology
| | - Lifeng Wang
- Department of Chemical Engineering, Tokyo University of Agriculture and Technology
| | - Dong Vien Vo
- Department of Chemical Engineering, Tokyo University of Agriculture and Technology
| | - Hideo Kameyama
- Department of Chemical Engineering, Tokyo University of Agriculture and Technology
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196
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Hirata J, Oya M, Kotani J, Yamada T, Hashimoto A, Ueda T, Terashima M, Marukawa S. Association between ATP production and oxidative mtDNA damage through mitochondrial respiratory chain in the rat caecal ligation and puncture heart injury model. Crit Care 2008. [PMCID: PMC4088758 DOI: 10.1186/cc6608] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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197
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Aoyagi S, Fukunaga S, Arinaga K, Shojima T, Ueda T. Prosthetic Valve Obstruction: Diagnostic Usefulness of Cineradiography and Multidetector-Row Computed Tomography. Thorac Cardiovasc Surg 2007; 55:517-9. [DOI: 10.1055/s-2006-924712] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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198
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Takemura M, Niimi A, Matsumoto H, Ueda T, Yamaguchi M, Matsuoka H, Jinnai M, Chin K, Mishima M. Atopic features of cough variant asthma and classic asthma with wheezing. Clin Exp Allergy 2007; 37:1833-9. [PMID: 17941915 DOI: 10.1111/j.1365-2222.2007.02848.x] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
BACKGROUND Cough variant asthma is a phenotype of asthma solely presenting with coughing. It involves airway inflammation and remodelling as does classic asthma with wheezing, and a subset of patients may progress to classic asthma. The atopic features of cough variant asthma remain unclear. OBJECTIVE To compare atopic features between patients with cough variant asthma and those with classic asthma, and to examine the possible correlation of these features with the future development of wheezing in the former group. METHODS Total and specific IgE levels of seven common aeroallergens [house dust mite (HDM), Gramineae/Japanese cedar/weed pollens, moulds, cat/dog dander] were examined in 74 cough variant asthma patients and in 115 classic asthma patients of varying severity. Forty of the former patients were prospectively observed for 2 years to determine whether cough variant asthma progressed to classic asthma despite inhaled corticosteroid treatment. RESULTS Patients with classic asthma had higher total IgE (P<0.0001), larger numbers of sensitized allergens (P=0.03), and higher rates of sensitization to dog dander (24% vs. 3%, P<0.0001), HDM (46% vs. 28%, P=0.02), and moulds (17% vs. 7%, P=0.047) than did patients with cough variant asthma. Wheezing developed in six (15%) patients with cough variant asthma, who were sensitized to larger numbers of allergens (P=0.02) and had higher rates of sensitization to HDM (P=0.01) and dog dander (P=0.02) than the 34 patients in whom wheezing did not develop. Among the patients with classic asthma, total and specific IgE variables were similar in the subgroup with mild disease (n=60) and the subgroup with moderate-to-severe disease (n=55), as reported previously. CONCLUSIONS Atopy may be related to the development of wheezing in patients with cough variant asthma. To prevent the progression of cough variant asthma to classic asthma, avoidance of relevant allergens may be essential.
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Affiliation(s)
- M Takemura
- Department of Respiratory Medicine, Graduate School of Medicine, Kyoto University, Kyoto, Japan
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199
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Makimoto Y, Yamamoto S, Takano H, Motoori K, Ueda T, Kazama T, Kaneoya K, Shimofusa R, Uno T, Ito H, Hanazawa T, Okamoto Y, Hayasaki K. Imaging findings of radiation-induced sarcoma of the head and neck. Br J Radiol 2007; 80:790-7. [PMID: 17908819 DOI: 10.1259/bjr/20938070] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
We set out to retrospectively review the clinical and imaging features of patients with post-radiation sarcoma, especially in the head and neck region. We reviewed the records of 4194 patients with carcinoma of the head and neck region who had a history of radiation. They had undergone CT and/or MRI. Medical records were reviewed for the primary diagnosis, radiation history and latency period to the development of sarcoma. The patients included four men and two women with a mean age of 64.5 years. The mean latency period for the development of sarcoma was 11.5 years. Primary diagnoses were maxillary carcinoma, nasopharyngeal carcinoma, adenoid cystic carcinoma of the oral floor, tonsilar carcinoma, soft palate carcinoma and tongue carcinoma. Histopathological examinations revealed osteosarcoma, spindle cell sarcoma, chondrosarcoma, malignant peripheral nerve sheath tumour, spindle cell carcinoma and malignant fibrous histiocytoma, respectively. Common findings were a heterogeneous and well-enhanced soft tissue mass and bone destruction. There is at present little or no prospect for the effective prevention of radiation-induced sarcoma of the head and neck. This emphasizes the importance of the earliest possible diagnosis for such patients. The imaging findings are not diagnosis specific, but strict follow-up within the radiation field by CT and MRI and an appreciation of the expected latency period may help to provide the diagnosis. When radiotherapy is performed for head and neck neoplasms, periodic follow-up observations may be necessary for many years.
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Affiliation(s)
- Y Makimoto
- Department of Radiology, Chiba University Hospital, 1-8-1 Inohana, Chuou-ku, Chiba City, Chiba, Japan 260-8670
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200
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Miyagishima K, Hiramitsu S, Kato S, Kato Y, Kitagawa F, Teradaira R, Shinohara R, Mori K, Kimura H, Ueda T, Ohtsuki M, Morimoto S, Hishida H. Efficacy of atorvastatin therapy in ischaemic heart disease - effects on oxidized low-density lipoprotein and adiponectin. J Int Med Res 2007; 35:534-9. [PMID: 17697531 DOI: 10.1177/147323000703500413] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
The lipid-lowering and anti-atherosclerotic effects of atorvastatin (10 mg/day) were investigated by measuring changes in the levels of oxidized low-density lipoprotein (LDL), serum lipids (total cholesterol [TC], LDL-cholesterol [LDL-C] and triglycerides [TG]), and in the protein adiponectin. This was undertaken in 22 patients with ischaemic heart disease and serum LDL-C levels > 100 mg/dl. After 3 months of therapy, atorvastatin significantly decreased serum lipids, oxidized LDL was reduced from 457.0 +/- 148.6 to 286.9 +/- 88.5 nmol/l, and adiponectin increased from 9.7 +/- 7.4 to 13.9 +/- 9.98 microg/ml. No significant correlation was observed between adiponectin and LDL-C, TG and high-density lipoprotein cholesterol. Atorvastatin therapy was not associated with side-effects, such as myalgia and gastrointestinal disorders, and did not give abnormal laboratory test results. It is concluded that atorvastatin decreases serum lipid and oxidized LDL levels, and increases adiponectin levels in patients with ischaemic heart disease.
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Affiliation(s)
- K Miyagishima
- Division of Cardiology, Department of Internal Medicine, Fujita Health University School of Medicine, Toyoake, Japan
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