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Ohba T, Goto A, Nakano H, Nollet KE, Murakami M, Koyama Y, Honda K, Yoshida K, Yumiya Y, Kuroda Y, Kumagai A, Ohira T, Tanigawa K. Development of an application tool to support returnees in Fukushima. Ann ICRP 2021; 50:187-193. [PMID: 34109845 DOI: 10.1177/01466453211006815] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
To promote radiation protection and health promotion among returning residents (returnees) in coastal areas of Fukushima, eHealth principles were used to develop a new application tool (app) that can record radiation exposure and health status while providing comprehensive support to returnees. Intended users are returnees and health and welfare workers. After assessing their needs, a flowchart and prototype for operational logic were created using commercially available software tools. Professional developers will focus on improving the user interface and ensuring data security. The finished app will be compatible with mobile telephones and tablets. Utility and ease of use are paramount to serve returnees of all ages effectively.
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Affiliation(s)
- T Ohba
- Fukushima Medical University, Japan
| | - A Goto
- Fukushima Medical University, Japan
| | - H Nakano
- Fukushima Medical University, Japan
| | | | | | - Y Koyama
- Fukushima Medical University, Japan
| | - K Honda
- Fukushima Medical University, Japan
| | - K Yoshida
- Fukushima Medical University, Japan.,Iryo Sosei University, Japan
| | - Y Yumiya
- Fukushima Medical University, Japan
| | - Y Kuroda
- Fukushima Medical University, Japan
| | - A Kumagai
- National Institutes for Quantum and Radiological Science and Technology, Japan
| | - T Ohira
- Fukushima Medical University, Japan
| | - K Tanigawa
- Futaba Medical Centre, Japan Corresponding author: Takashi Ohba, 1 Hikarigaoka, Fukushima, Fukushima, 960-1295, Japan; e-mail:
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Khan MS, Karatrantos AV, Ohba T, Cai Q. The effect of different organic solvents and anion salts on sodium ion storage in cylindrical carbon nanopores. Phys Chem Chem Phys 2019; 21:22722-22731. [DOI: 10.1039/c9cp03332g] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In this article fully atomistic Molecular Dynamics simulations were employed to study the behaviour of electrolyte salts and different organic solvents in cylindrical carbon nanotubes, in order to reveal the storage mechanism.
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Affiliation(s)
- M. S. Khan
- Graduate School of Science
- Chiba University
- Inage
- Japan
| | - A. V. Karatrantos
- Department of Chemical and Process Engineering
- University of Surrey
- Guildford GU2 7XH
- UK
- Luxemburg Institute of Science and Technology
| | - T. Ohba
- Graduate School of Science
- Chiba University
- Inage
- Japan
| | - Q. Cai
- Department of Chemical and Process Engineering
- University of Surrey
- Guildford GU2 7XH
- UK
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Shimizu K, Ohba T. Extremely permeable porous graphene with high H 2/CO 2 separation ability achieved by graphene surface rejection. Phys Chem Chem Phys 2018; 19:18201-18207. [PMID: 28675236 DOI: 10.1039/c7cp03270f] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Fabrication of a graphene separation sheet is difficult because of the necessity for leakage-free graphene transfer onto a substrate. In this study, porous graphene sheets with thicknesses of one, two, and four layers were directly fabricated on stainless-steel mesh substrates and demonstrated to display high separation ability for H2, CO2, and CH4. The single-layer graphene sample exhibited higher permeance for these molecules than double- and four-layer graphene and displayed similar high selectivity to that of other porous materials. Permeance was proportional to molecular velocity and inversely proportional to interaction strength with graphene; molecular size-dependent permeance was not seen. Molecules that interacted strongly with graphene were attracted to the graphene surface, which hindered permeation. Such graphene surface rejection allowed graphene containing larger pores than the molecular size to provide both high molecular permeance and selectivity. The relationship between the permeance of porous graphene for H2 and H2/CO2 with selectivity suggested that its permeance was higher than that of other materials with high separation performance. Therefore, the porous graphene samples separated molecules with extremely high permeance by graphene surface rejection.
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Affiliation(s)
- K Shimizu
- Graduate School of Science, Chiba University, 1-33 Yayoi, Inage, Chiba 263-8522, Japan.
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Yamaguchi M, Honda R, Erdenebaatar C, Monsur M, Honda T, Sakaguchi I, Okamura Y, Ohba T, Katabuchi H. Treatment of cervical pregnancy with ultrasound-guided local methotrexate injection. Ultrasound Obstet Gynecol 2017; 50:781-787. [PMID: 27943496 DOI: 10.1002/uog.17384] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/24/2016] [Revised: 12/01/2016] [Accepted: 12/02/2016] [Indexed: 06/06/2023]
Abstract
OBJECTIVES Cervical pregnancy (CP) is a rare type of ectopic pregnancy. While methotrexate (MTX) is generally the first-line method of choice for clinically stable women, there is still no consensus on the most appropriate treatment for this abnormal pregnancy. The aim of this study was to investigate the efficacy of a single local MTX injection under transvaginal ultrasound guidance for the initial treatment of CP and to assess post-treatment fertility. METHODS We reviewed retrospectively 15 patients with CP treated with local MTX injection under transvaginal ultrasound guidance. In all patients, the serum human chorionic gonadotropin (hCG) levels were monitored and the gestational sac was evaluated using ultrasonography after treatment. Magnetic resonance imaging (MRI) was performed as necessary. We evaluated the patients' clinical characteristics and clinical course after treatment, the efficacy of the treatment and the post-treatment fertility in patients desiring subsequent pregnancy. RESULTS The median estimated gestational age at the time of MTX injection was 6 + 2 (range, 5 + 2 to 11 + 0) weeks. All 15 patients were treated successfully, without the need for blood transfusion or surgical procedures; however, three patients required an additional local MTX injection due to a poor decline in serum hCG level following the initial injection, while one patient required uterine artery embolization due to persistent vaginal bleeding and an enlarging gestational sac with blood vessels visible on contrast-enhanced MRI. The mean time following initial MTX injection for hCG normalization was 43.8 (95% CI, 33.3-54.3) days and for resumption of menses was 68.4 (95% CI, 51.9-84.9) days. Seven of the 10 women desiring subsequent pregnancy following treatment had uneventful pregnancy, one became pregnant but miscarried spontaneously at 8 weeks of gestation, one was treated by laparoscopic surgery after diagnosis of a tubal pregnancy and one did not conceive. CONCLUSIONS A single, ultrasound-guided, local MTX injection is apparently effective for the treatment of CP without the need for concomitant procedures or surgical intervention. Furthermore, this conservative technique both preserves fertility and allows for the possibility of subsequent uneventful pregnancy. Copyright © 2016 ISUOG. Published by John Wiley & Sons Ltd.
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Affiliation(s)
- M Yamaguchi
- Department of Obstetrics and Gynecology, Faculty of Life Sciences, Kumamoto University, Chuo-Ku, Kumamoto-City, Kumamoto, Japan
| | - R Honda
- Department of Obstetrics and Gynecology, Faculty of Life Sciences, Kumamoto University, Chuo-Ku, Kumamoto-City, Kumamoto, Japan
| | - C Erdenebaatar
- Department of Obstetrics and Gynecology, Faculty of Life Sciences, Kumamoto University, Chuo-Ku, Kumamoto-City, Kumamoto, Japan
| | - M Monsur
- Department of Obstetrics and Gynecology, Faculty of Life Sciences, Kumamoto University, Chuo-Ku, Kumamoto-City, Kumamoto, Japan
| | - T Honda
- Department of Obstetrics and Gynecology, Faculty of Life Sciences, Kumamoto University, Chuo-Ku, Kumamoto-City, Kumamoto, Japan
| | - I Sakaguchi
- Department of Obstetrics and Gynecology, Faculty of Life Sciences, Kumamoto University, Chuo-Ku, Kumamoto-City, Kumamoto, Japan
| | - Y Okamura
- Department of Obstetrics and Gynecology, Faculty of Life Sciences, Kumamoto University, Chuo-Ku, Kumamoto-City, Kumamoto, Japan
| | - T Ohba
- Department of Obstetrics and Gynecology, Faculty of Life Sciences, Kumamoto University, Chuo-Ku, Kumamoto-City, Kumamoto, Japan
| | - H Katabuchi
- Department of Obstetrics and Gynecology, Faculty of Life Sciences, Kumamoto University, Chuo-Ku, Kumamoto-City, Kumamoto, Japan
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Fukasawa K, Ohba T, Kanoh H, Toyoda T, Kaneko K. Nanoscale Irregularity Analysis of Carbon Fibre Surfaces with a High-Resolution αS-Plot. ADSORPT SCI TECHNOL 2016. [DOI: 10.1260/0263617042879438] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
Affiliation(s)
- K. Fukasawa
- Physical Chemistry, Material Science, Graduate School of Science and Technology, Chiba University, Yayoi 1-33, Inage, Chiba 263-8522, Japan
| | - T. Ohba
- Physical Chemistry, Material Science, Graduate School of Science and Technology, Chiba University, Yayoi 1-33, Inage, Chiba 263-8522, Japan
| | - H. Kanoh
- Physical Chemistry, Material Science, Graduate School of Science and Technology, Chiba University, Yayoi 1-33, Inage, Chiba 263-8522, Japan
| | - T. Toyoda
- Department of Applied Chemistry, Faculty of Engineering, Oita University, Dannoharu 700, Oita 870-1192, Japan
| | - K. Kaneko
- Physical Chemistry, Material Science, Graduate School of Science and Technology, Chiba University, Yayoi 1-33, Inage, Chiba 263-8522, Japan
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Ohba T. Significant curvature effects of partially charged carbon nanotubes on electrolyte behavior investigated using Monte Carlo simulations. Phys Chem Chem Phys 2016; 18:14543-8. [PMID: 27181336 DOI: 10.1039/c6cp02111e] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Carbon nanotubes and graphene are among the major nanomaterials in nanoscience and technology. Despite having π electrons, these nanocarbon allotropes have been simply considered as neutral in classical calculations. In this study, the effects of partial charges on graphene and curved interfaces on molecular adsorption were investigated using Monte Carlo simulations of N2 and NaCl aqueous solutions on graphene and carbon nanotubes. The simulated N2 adsorption behavior and adsorption potential on partially charged and non-charged graphene coincided with each other. The adsorption potentials suggested that partially charged graphene attracted Na ions and repelled Cl ions. However, those tendencies were not present in NaCl aqueous solutions on graphene. Conversely, in partially charged carbon nanotube models, a preference for Na ions and repulsion of Cl ions in the internal nanospaces were observed in the adsorption potentials using Monte Carlo simulations. Curved interfaces in the internal nanospaces of carbon nanotubes enhanced these properties, suggesting significant electrostatic interactions in a curved π-conjugated system.
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Affiliation(s)
- T Ohba
- Graduate School of Science, Chiba University, 1-33 Yayoi, Inage, Chiba 263-8522, Japan.
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Koyama K, Ohba T, Haro H, Nakao A. Positive association between serum thymic stromal lymphopoietin and anti-citrullinated peptide antibodies in patients with rheumatoid arthritis. Clin Exp Immunol 2015; 181:239-43. [PMID: 25817699 DOI: 10.1111/cei.12632] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2015] [Revised: 03/18/2015] [Accepted: 03/23/2015] [Indexed: 01/11/2023] Open
Abstract
Thymic stromal lymphopoietin (TSLP) has been suggested recently to play an important role in the pathophysiology of rheumatoid arthritis (RA). However, there is little information on serum TSLP concentrations in RA and its clinical significance. The present study investigated whether serum TSLP concentrations were affected in patients with RA. Using an enzyme-linked immunosorbent assay (ELISA), we measured TSLP concentrations in the serum obtained from 100 patients with RA, 60 patients with osteoarthritis (OA) and 34 healthy volunteers. We also investigated the correlation between serum TSLP concentrations and clinical parameters of disease activity in RA [disease activity score using 28 joint counts (DAS28)-C-reactive protein (CRP), DAS28-erythrocyte sedimentation rate (ESR), Clinical Disease Activity Index (CDAI]), patient's/-physician's Visual Analogue Scale (VAS), swollen joints count, tender joints count, CRP, ESR and matrix metalloproteinase-3 (MMP-3) concentrations]. In addition, we investigated the correlation between serum TSLP concentrations and anti-citrullinated peptide antibody (ACPA) and serum tumour necrosis factor (TNF)-α. Serum TSLP levels in patients with RA were significantly higher than those in patients with OA and in healthy volunteers. Interestingly, serum TSLP concentrations were correlated significantly with ACPA titres, but not with other clinical parameters. There was a significant increase in serum TSLP concentrations in patients with RA, which was correlated positively with serum ACPA titres. These findings suggest that in patients with RA, TSLP may play a role in ACPA production by B cells.
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Affiliation(s)
- K Koyama
- Department of Orthopaedic Surgery
| | - T Ohba
- Department of Orthopaedic Surgery
| | - H Haro
- Department of Orthopaedic Surgery
| | - A Nakao
- Department of Immunology, Faculty of Medicine, University of Yamanashi, Yamanashi, Japan
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Hongo M, Fujisawa S, Adachi T, Shimbo T, Shibata S, Ohba T, Ono K. 1110. Age-related effects of dexmedetomidine, an alpha-2 agonist, on coronary vasoactivity and cardiac function in guinea-pig hearts. Intensive Care Med Exp 2014. [PMCID: PMC4796847 DOI: 10.1186/2197-425x-2-s1-p89] [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: 11/23/2022] Open
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Asaji T, Hirabara N, Izumihara T, Hitobo T, Nakamizu T, Ohba T, Nakamura T, Furuse M, Kato Y. Design of a new electron cyclotron resonance ion source at Oshima National College of Maritime Technology. Rev Sci Instrum 2014; 85:02A940. [PMID: 24593519 DOI: 10.1063/1.4847235] [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] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
A new electron cyclotron resonance ion/plasma source has been designed and will be built at Oshima National College of Maritime Technology by early 2014. We have developed an ion source that allows the control of the plasma parameters over a wide range of electron temperatures for material research. A minimum-B magnetic field composed of axial mirror fields and radial cusp fields was designed using mainly Nd-Fe-B permanent magnets. The axial magnetic field can be varied by three solenoid coils. The apparatus has 2.45 GHz magnetron and 2.5-6.0 GHz solid-state microwave sources.
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Affiliation(s)
- T Asaji
- Oshima National College of Maritime Technology (OCMT), 1091-1 Komatsu, Suo-oshima, Yamaguchi 742-2193, Japan
| | - N Hirabara
- Oshima National College of Maritime Technology (OCMT), 1091-1 Komatsu, Suo-oshima, Yamaguchi 742-2193, Japan
| | - T Izumihara
- Oshima National College of Maritime Technology (OCMT), 1091-1 Komatsu, Suo-oshima, Yamaguchi 742-2193, Japan
| | - T Hitobo
- Tateyama Machine Co., Ltd., 30 Shimonoban, Toyama 930-1305, Japan
| | - T Nakamizu
- Oshima National College of Maritime Technology (OCMT), 1091-1 Komatsu, Suo-oshima, Yamaguchi 742-2193, Japan
| | - T Ohba
- Oshima National College of Maritime Technology (OCMT), 1091-1 Komatsu, Suo-oshima, Yamaguchi 742-2193, Japan
| | - T Nakamura
- Oshima National College of Maritime Technology (OCMT), 1091-1 Komatsu, Suo-oshima, Yamaguchi 742-2193, Japan
| | - M Furuse
- Oshima National College of Maritime Technology (OCMT), 1091-1 Komatsu, Suo-oshima, Yamaguchi 742-2193, Japan
| | - Y Kato
- Graduate School of Engineering, Osaka University, 2-1 Yamada-oka, Suita, Osaka 565-0871, Japan
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Asaji T, Ohba T, Uchida T, Minezaki H, Ishihara S, Racz R, Muramatsu M, Biri S, Kitagawa A, Kato Y, Yoshida Y. Fullerene-rare gas mixed plasmas in an electron cyclotron resonance ion source. Rev Sci Instrum 2014; 85:02A936. [PMID: 24593515 DOI: 10.1063/1.4847255] [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] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
A synthesis technology of endohedral fullerenes such as Fe@C60 has developed with an electron cyclotron resonance (ECR) ion source. The production of N@C60 was reported. However, the yield was quite low, since most fullerene molecules were broken in the ECR plasma. We have adopted gas-mixing techniques in order to cool the plasma and then reduce fullerene dissociation. Mass spectra of ion beams extracted from fullerene-He, Ar or Xe mixed plasmas were observed with a Faraday cup. From the results, the He gas mixing technique is effective against fullerene destruction.
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Affiliation(s)
- T Asaji
- Oshima National College of Maritime Technology, 1091-1 Komatsu, Suo-oshima, Oshima, Yamaguchi 742-2193, Japan
| | - T Ohba
- Oshima National College of Maritime Technology, 1091-1 Komatsu, Suo-oshima, Oshima, Yamaguchi 742-2193, Japan
| | - T Uchida
- Bio-Nano Electronics Research Centre, Toyo University, 2100 Kujirai, Kawagoe, Saitama 350-8585, Japan
| | - H Minezaki
- Graduate School of Engineering, Toyo University, 2100 Kujirai, Kawagoe, Saitama 350-8585, Japan
| | - S Ishihara
- Graduate School of Engineering, Toyo University, 2100 Kujirai, Kawagoe, Saitama 350-8585, Japan
| | - R Racz
- Institute of Nuclear Research (ATOMKI), H-4026 Debrecen, Bem Tér 18/c, Hungary
| | - M Muramatsu
- National Institute of Radiological Sciences (NIRS), 4-9-1 Anagawa, Inage-ku, Chiba 263-8555, Japan
| | - S Biri
- Institute of Nuclear Research (ATOMKI), H-4026 Debrecen, Bem Tér 18/c, Hungary
| | - A Kitagawa
- National Institute of Radiological Sciences (NIRS), 4-9-1 Anagawa, Inage-ku, Chiba 263-8555, Japan
| | - Y Kato
- Graduate School of Engineering, Osaka University, 2-1 Yamada-oka, Suita, Osaka 565-0871, Japan
| | - Y Yoshida
- Bio-Nano Electronics Research Centre, Toyo University, 2100 Kujirai, Kawagoe, Saitama 350-8585, Japan
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Hawelek L, Brodka A, Dore JC, Hannon AC, Iijima S, Yudasaka M, Ohba T, Kaneko K, Burian A. Structural Modeling of Dahlia-Type Single-Walled Carbon Nanohorn Aggregates by Molecular Dynamics. J Phys Chem A 2013; 117:9057-61. [DOI: 10.1021/jp408319t] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- L. Hawelek
- Institute of Non-Ferrous Metals, ulica Sowinskiego 5, 44-100 Gliwice, Poland
- A.
Chelkowski Institute of Physics, University of Silesia, ulica Uniwersytecka
4, 40-007 Katowice, Poland
| | - A. Brodka
- A.
Chelkowski Institute of Physics, University of Silesia, ulica Uniwersytecka
4, 40-007 Katowice, Poland
| | - John C. Dore
- School
of Physical Sciences, University of Kent, Canterbury CT2 7NH, United Kingdom
| | - Alex C. Hannon
- Rutherford Appleton Laboratory, Chilton, Didcot, Oxfordshire OX11 0QX, United Kingdom
| | - S. Iijima
- Department
of Physics, Meijo University, Nagoya 468-8522, Japan
| | - M. Yudasaka
- National Institute of Advanced Industrial Science and Technology, Central 5, Tsukuba 305-8565, Japan
| | - T. Ohba
- Graduate
School of Science, Chiba University, Yayoi 1-33, Inage, Chiba 263-8522, Japan
| | - K. Kaneko
- Exotic
Nanocarbon Research Center, Shinshu University, Wakasato 4-17-1, Nagano 380-8553, Japan
| | - A. Burian
- A.
Chelkowski Institute of Physics, University of Silesia, ulica Uniwersytecka
4, 40-007 Katowice, Poland
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Honda T, Honda R, Yamaguchi M, Uchino K, Ohba T, Katabuchi H. Direct injection of methotrexate preserves fertility in patients with ectopic pregnancy in lower uterine segment. Fertil Steril 2013. [DOI: 10.1016/j.fertnstert.2013.07.1466] [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: 10/26/2022]
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Ohba T, Yamasaki T, Endo Y, Furuie M, Ohtani Y, Inase N, Yoshizawa Y. A Phase I Study of TS-1 Plus Carboplatin in Patients with Advanced Non-Small-Cell Lung Cancer. J Chemother 2013; 21:80-5. [DOI: 10.1179/joc.2009.21.1.80] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
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Zeadna A, Holzer H, Son WY, Demirtas E, Reinblatt S, Dahan MH, Colleselli V, D'Costa E, Wildt L, Seeber B, Kashevarova AA, Skryabin NA, Nikitina TV, Lebedev IN, Bordignon PP, Mugione A, Vanni VS, Vigano P, Papaleo E, Candiani M, Somigliana E, Amodio G, Gregori S, Guo YH, Li R, Wang LL, Chen SL, Chen X, Guo W, Ye DS, Liu YD, Renzini MM, Dal Canto M, Coticchio G, Comi R, Brigante C, Caliari I, Brambillasca F, Merola M, Lain M, Turchi D, Karagouga G, Sottocornola M, Fadini R, Wekker MZ, Mol F, van Wely M, Ankum WM, Mol BW, van der Veen F, Hajenius PJ, van Mello NM, Verlengia C, Alviggi E, Rampini MR, Alfano P, Pergolini I, Marconi D, Iacobelli N, Muzi MC, Gelli G, Alviggi C, Colicchia A, Herraiz-Nicuesa L, Tejera-Alhambra M, Garcia-Segovia A, Ramos-Medina R, Alonso B, Gil-Pulido J, Martin L, Caballero M, Rodriguez-Mahou M, Sanchez-Ramon S, de Jong PG, Kaandorp SP, Di Nisio M, Goddijn M, Middeldorp S, Lledo B, Turienzo A, Ortiz JA, Morales R, Ten J, Llacer J, Bernabeu R, Ramos-Medina R, Garcia-Segovia A, Gil J, Leon JA, Alonso B, Tejera-Alhambra M, Seyfferth A, Aguaron A, Alonso J, de Albornoz EC, Carbone J, Caballero P, Fernandez-Cruz E, Ortiz-Quintana L, Sanchez-Ramon S, Lou YY, Jin F, Zheng YM, Li LJ, Le F, Wang LY, Liu SY, Pan PP, Hu CX, Akoum A, Bourdiec A, Shao R, Rao CV, Scarpellini F, Sbracia M, Jancar N, Bokal EV, Ban-Frangez H, Drobnic S, Korosec S, Pinter B, Salamun V, Yamaguchi M, Honda R, Uchino K, Ohba T, Katabuchi H, Leylek O, Tiras B, Saltik AYSE, Halicigil C, Kavci N, Wiser A, Gilbert A, Nahum R, Orvieto R, Hass J, Hourvitz A, Weissman A, Younes G, Dirnfeld M, Hershko A, Shulma A, Holzer H, Shalom-Paz E, Tulandi T, O'Neill SM, Agerbo E, Kenny LC, Henriksen TB, Kearney PM, Greene RA, Mortensen PB, Khashan AS, Talaulikar VS, Bax BE, Manyonda I, Van Mello N, Mol F, Hajenius PJ, Ankum WM, Mol BW, van der Veen F, van Wely M. Early pregnancy. Hum Reprod 2013. [DOI: 10.1093/humrep/det209] [Citation(s) in RCA: 1] [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: 11/14/2022] Open
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Toyokawa G, Ohba T, Sugio K, Morodomi Y, Takenaka T, Yamaguchi M, Hirai F, Taguchi K, Seto T, Ichinose Y. The Role of Mutations of EGFR, K-RAS, EML4-ALK, and B-RAF Genes in Resected Pathological Stage I Lung Adenocarcinoma. Ann Oncol 2012. [DOI: 10.1016/s0923-7534(20)33750-9] [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: 11/17/2022] Open
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Ohba T, Sugio K, Kometani T, Yamaguchi M, Hamatake M, Nosaki K, Takeoka H, Kitajima H, Hirai F, Seto T, Ichinose Y. Mutations of EGFR, K-ras, and EML-4ALK genes in resected lung adenocarcinoma and their clinical significance. J Clin Oncol 2011. [DOI: 10.1200/jco.2011.29.15_suppl.7033] [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: 11/20/2022] Open
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Ozaki M, Kaji K, Matsuda N, Ochiai K, Asada M, Ohba T, Hosoi E, Tado H, Koizumi T, Suwa G, Takatsuki S. The relationship between food habits, molar wear and life expectancy in wild sika deer populations. J Zool (1987) 2010. [DOI: 10.1111/j.1469-7998.2009.00653.x] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.7] [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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Takenaka T, Yano T, Kouso H, Ohba T, Kometani T, Shoji F, Maehara Y. Long-term survival of a patient with type A thymoma and Masaoka's stage IV b: case report. Thorac Cardiovasc Surg 2009; 57:496-7. [PMID: 20013628 DOI: 10.1055/s-2008-1039058] [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: 10/20/2022]
Abstract
Thymoma is the most common neoplasm in the anterior mediastinum. This report presents an extremely rare case of a type A thymoma with Masaoka's stage IV b due to lymph node metastasis. In 1997, a 59-year-old man underwent complete resection of a stage IV b type A thymoma with postoperative radiotherapy to the mediastinum. In 2006, small nodules were detected in the anterior mediastinum and above the right diaphragm and tumor resection was performed. The two lesions were both histologically diagnosed as recurrences of the type A thymoma. There has been no evidence of recurrence 15 months after the second surgery.
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Affiliation(s)
- T Takenaka
- Department of Surgery and Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan.
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Rejifu A, Noguchi H, Ohba T, Kanoh H, Rodriguez-Reinoso F, Kaneko K. Adsorptivities of Extremely High Surface Area Activated Carbon Fibres for CH4 and H2. ADSORPT SCI TECHNOL 2009. [DOI: 10.1260/0263-6174.27.9.877] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
Affiliation(s)
- A. Rejifu
- Department of Chemistry, Graduate School of Science and Technology, Chiba University, 1-33 Yayoi, Inage, Chiba, 263-8522, Japan
| | - H. Noguchi
- Tsukuba Research Laboratories, 25 Miyukigaoka, Tsukuba, Ibaraki, 305-0841, Japan
| | - T. Ohba
- Department of Chemistry, Graduate School of Science and Technology, Chiba University, 1-33 Yayoi, Inage, Chiba, 263-8522, Japan
| | - H. Kanoh
- Department of Chemistry, Graduate School of Science and Technology, Chiba University, 1-33 Yayoi, Inage, Chiba, 263-8522, Japan
| | - F. Rodriguez-Reinoso
- Departmento de Quimica Inorgánica, Universidad de Alicante, Apdo. 99, E-3080 Alicante, Spain
| | - K. Kaneko
- Department of Chemistry, Graduate School of Science and Technology, Chiba University, 1-33 Yayoi, Inage, Chiba, 263-8522, Japan
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Affiliation(s)
- Y. Fukushima
- Natural Products Laboratory, School of Pharmacy, University of North Carolina, Chapel Hill, NC, 27599, USA
- Nitto Denko Corporation, 1-1-2, Shimohozumi, Ibaraki, Osaka, 567, Japan
| | - K.F. Bastow
- Natural Products Laboratory, School of Pharmacy, University of North Carolina, Chapel Hill, NC, 27599, USA
| | - T. Ohba
- Nitto Denko Corporation, 1-1-2, Shimohozumi, Ibaraki, Osaka, 567, Japan
| | - K.H. Lee
- Natural Products Laboratory, School of Pharmacy, University of North Carolina, Chapel Hill, NC, 27599, USA
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Motohara K, Taura Y, Tashiro H, Ohba T, Katabuchi H. Distribution of 17β-hydroxysteroid dehydrogenase isozymes in normal and abnormal human endometrium. Fertil Steril 2008. [DOI: 10.1016/j.fertnstert.2008.07.377] [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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Okamura Y, Suzuki J, Honda R, Ohba T, Katabuchi H, Okamura H. Clinical outcome of vaginal danazol suppository use in women with pelvic endometriosis. Fertil Steril 2008. [DOI: 10.1016/j.fertnstert.2008.07.072] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [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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24
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Ohba T. Martensitic transformation and phonon softening behavior in TiNi alloy system. Acta Crystallogr A 2008. [DOI: 10.1107/s0108767308096931] [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: 04/03/2023] Open
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25
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Ohba T, Shibahara T, Kobayashi H, Takashima A, Nagoshi M, Osanai R, Kubo M. Multifocal granulomatous hepatitis caused by Actinobacillus pleuropneumoniae serotype 2 in slaughter pigs. J Comp Pathol 2008; 139:61-6. [PMID: 18617183 DOI: 10.1016/j.jcpa.2008.04.003] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2007] [Accepted: 04/16/2008] [Indexed: 10/21/2022]
Abstract
In a survey of 66 894 slaughter pigs, 11 animals from three farms were found to have multifocal granulomatous lesions in the liver, caused by Actinobacillus pleuropneumoniae serotype 2. The lesions consisted of epithelioid cells and multinucleated giant cells, with asteroid bodies and discernible gram-negative bacteria. Lymph nodes and spleen were occasionally affected. The results suggested that haematogenous spread had occurred from pre-existing pulmonary infections.
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Affiliation(s)
- T Ohba
- Toyama Prefectural Meat Inspection Centre, 28-4 Shinbori, Imizu, Japan
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26
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Yano T, Miura N, Takenaka T, Ohba T, Kometani T, Shoji F, Maehara Y. Surgical results of non-small cell lung cancer in never-smokers as a separate entity. J Clin Oncol 2008. [DOI: 10.1200/jco.2008.26.15_suppl.7505] [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: 11/20/2022] Open
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Kubo Y, Ohba T, Takahashi N. Proteins in Human Myeloid Leukemia Cell Line HL60 Reacting with Retinoic Acid Monoclonal Antibodies. J Biochem 2008; 144:349-55. [DOI: 10.1093/jb/mvn071] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [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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28
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Ohba T, Shibahara T, Kobayashi H, Takashima A, Minami Y, Kubo M. Granulomatous Lymphadenitis and Pneumonia Associated with Actinobacillus porcitonsillarum in a Slaughter Pig. J Comp Pathol 2007; 137:82-86. [PMID: 17629969 DOI: 10.1016/j.jcpa.2007.04.001] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2006] [Accepted: 03/30/2007] [Indexed: 10/23/2022]
Abstract
Multiple coalescing granulomatous foci were detected in the pulmonary hilar and mediastinal lymph nodes and lung of a slaughtered pig aged 6 months. Haemolytic, Gram-negative bacilli were isolated from the lymph nodes. The isolate (strain TO17214) strongly cross-reacted with sera against Actinobacillus pleuropneumoniae serotype 12 in slide agglutination tests. Comparative 16S rDNA gene sequencing analysis identified strain TO17214 as Actinobacillus porcitonsillarum. Histologically, extensive inflammation took the form of large granulomas consisting of epithelioid cells and multinucleated giant cells in the lymph nodes and lung, and Gram-negative bacilli were discernible in the centres of the lesions. Immunohistochemically, the organisms cross-reacted with polyclonal antibodies against A. pleuropneumoniae serotypes 12 and 2. The results indicated that A. porcitonsillarum, previously considered non-pathogenic, can induce multifocal granulomatous lymphadenitis accompanied by pneumonia in the growing-finishing pig.
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Affiliation(s)
- T Ohba
- Toyama Prefectural Meat Inspection Centre, 28-4 Shinbori, Imizu 934-0035
| | - T Shibahara
- Epidemiological Research Team, National Institute of Animal Health, 3-1-5 Kannondai, Tsukuba 305-0856, Japan.
| | - H Kobayashi
- Epidemiological Research Team, National Institute of Animal Health, 3-1-5 Kannondai, Tsukuba 305-0856, Japan
| | | | | | - M Kubo
- Epidemiological Research Team, National Institute of Animal Health, 3-1-5 Kannondai, Tsukuba 305-0856, Japan
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Ozaki M, Suwa G, Kaji K, Ohba T, Hosoi E, Koizumi T, Takatsuki S. Correlations between feeding type and mandibular morphology in the sika deer. J Zool (1987) 2007. [DOI: 10.1111/j.1469-7998.2006.00264.x] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Yoshino I, Takenaka T, Koso H, Ohba T, Yohena T, Osoegawa A, Shoji F, Maehara Y. Combined evaluation of Rad51 and ERCC1 expressions for sensitivity to platinum agents in non-small cell lung cancer (NSCLC). J Clin Oncol 2007. [DOI: 10.1200/jco.2007.25.18_suppl.18085] [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: 11/20/2022] Open
Abstract
18085 Background: DNA repair enzyme expression in tumor cells possibly affects sensitivity to anti-cancer agents. The aim of this study was to determine the relationship between expression status of DNA repair proteins and chemosensitivity in patients with NSCLC. Rad51 and ERCC1 play important roles in repair of double and single strand breaks of DNA, respectively, and may protect cells from cytotoxic effect of platinum agents. Methods: NSCLC tissues prepared from the surgical specimens of 41 patients were subjected to an immunohistochemical analysis for Rad51 and ERCC1 proteins and to a chemosensitivity test using the MTT assay. The relationships between the expression status of the DNA repair enzymes and ex vivo chemosensitivity to various agents were evaluated. Results: A positive expression for Rad51 and ERCC1 was observed in 17 cases (41%) and 20 cases (49%), respectively. The positivity of Rad51 was closely related to a certain histologic type of squamous cell carcinoma and poor differentiation, and the positivity of ERCC1 tended to be related to squamous cell carcinoma. In chemosensitivity tests, sensitivities to CDDP and CBDCA were significantly lower when both two enzymes were positive (p = 0.012 and 0.04 in CDDP, 0.014 and 0.03 in CBDCA), but not when either or neither of them was positive. Both Rad51 and ERCC1 expressions showed no significant relationship with sensitivities to paclitaxel, etoposide, vinorelbine, gemcitabine, 5-FU, or irinotecan. Conclusions: Combined expression of Rad51 and ERCC1 is associated with resistance to platinum agents in the ex vivo study of clinical NSCLC, and evaluation of expression status of both DNA repair enzymes would be a predictor for clinical response to platinum-based chemotherapies. No significant financial relationships to disclose.
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Affiliation(s)
| | | | - H. Koso
- Kyushu University, Fukuoka, Japan
| | - T. Ohba
- Kyushu University, Fukuoka, Japan
| | | | | | - F. Shoji
- Kyushu University, Fukuoka, Japan
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31
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Morimoto Y, Habu M, Tomoyose T, Ono K, Tanaka T, Yoshioka I, Tominaga K, Yamashita Y, Ansai T, Kito S, Okabe S, Takahashi T, Takehara T, Fukuda J, Inenaga K, Ohba T. Dynamic magnetic resonance sialography as a new diagnostic technique for patients with Sjogren's syndrome. Oral Dis 2006; 12:408-14. [PMID: 16792727 DOI: 10.1111/j.1601-0825.2005.01215.x] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.7] [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: 11/29/2022]
Abstract
OBJECTIVE To evaluate the clinical utility of dynamic magnetic resonance (MR) sialographic images as a diagnostic tool for patients with Sjögren's syndrome. METHODS The morphological findings and various kinds of functional parameters in volunteers on dynamic MR sialographic images were compared with those in five patients with definite Sjögren's syndrome. RESULTS On the MR sialographs of all five patients with Sjögren's syndrome, the so-called 'apple-tree appearance' was seen. The difference in two functional parameters using the dynamic MR sialographic data was elucidated between the two groups. The maximum area of the detectable ducts in the group of patients was significantly smaller (P < 0.001) than that in the group of volunteers. The ratio of change in the detectable ducts in the group of patients was significantly lower (P = 0.011) than that in the group of volunteers. CONCLUSIONS Our study suggests that dynamic MR sialographic data in addition to MR sialographic images might be useful for the diagnosis of Sjögren's syndrome.
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Affiliation(s)
- Y Morimoto
- Division of Diagnostic Radiology, Department of Oral Diagnostic Science, Kyushu Dental College, Kitakyushu, Fukuoka, Japan.
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Okabe S, Morimoto Y, Ansai T, Yamada K, Tanaka T, Awano S, Kito S, Takata Y, Takehara T, Ohba T. Clinical significance and variation of the advanced calcified stylohyoid complex detected by panoramic radiographs among 80-year-old subjects. Dentomaxillofac Radiol 2006; 35:191-9. [PMID: 16618854 DOI: 10.1259/dmfr/12056500] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.8] [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: 11/05/2022] Open
Abstract
OBJECTIVES To evaluate the clinical significance and variation of a calcified stylohyoid complex associated with advanced calcification as detected on panoramic radiographs among 80-year-old subjects. METHODS Panoramic radiographs of 659 patients (262 men and 397 women) and data of their general and dental health conditions were used for the evaluation of the relationship between a calcified stylohyoid complex and general health among 80-year-olds. This study was part of the 8020 Data Bank Survey, which was designed to collect the baseline data of general and dental health conditions in 80-year-old subjects. The morphology of the calcified stylohyoid complexes was allocated to one of 12 patterns. The lengths of the calcified stylohyoid complex were measured directly on the radiographs from the caudal margin of the tympanic plate to the tip of the styloid process. RESULTS All of the stylohyoid complexes from the 659 panoramic radiographs could be allocated to one of 12 morphological patterns, and some of their radiographic findings suggested calcification of the carotid artery and lymph nodes. In 80-year-old subjects, the average length of the calcified stylohyoid complexes was 36.7 mm, and ranged from 0.0 mm to 153.0 mm. There appeared to be correlations between the length of the calcified stylohyoid complex and serum calcium concentration and heel bone density, but not with the Community Periodontal Index (CPI). CONCLUSIONS Dentists should recognize the existence of morphological variation in calcified stylohyoid complexes, especially in length, apparent on panoramic radiographs of 80-year-old patients. In addition, the longer length of the calcified stylohyoid complexes in 80-year-old patients may be a predictor of bone density and high serum calcium concentration level. The findings from the present study may provide potentially life-saving information about elderly people.
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Affiliation(s)
- S Okabe
- Division of Diagnostic Radiology, Department of Oral Diagnostic Science, Kyushu Dental College, 2-6-1 Manazuru, Kokurakita-ku, Kitakyushu 803-8580, Japan
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33
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Morimoto Y, Kurokawa H, Tanaka T, Yamashita Y, Kito S, Okabe S, Takahashi T, Ohba T. Correlation between the incidence of central nodal necrosis in cervical lymph node metastasis and the extent of differentiation in oral squamous cell carcinoma. Dentomaxillofac Radiol 2006; 35:18-23. [PMID: 16421259 DOI: 10.1259/dmfr/24536918] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [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: 11/05/2022] Open
Abstract
OBJECTIVES To investigate the incidence of central nodal necrosis (CNN) in the cervical lymph nodes of patients with oral squamous cell carcinoma (SCC) and the factors that influence the formation of CNN. METHODS Lymph nodes shown as CNN on computed tomography (CT) films in 107 lymph nodes from 27 patients with oral SCC were selected. Lymph nodes with CNN on CT films were compared with the pathological findings of lymph nodes on specimens. We compared many kinds of factors influencing the formation of CNN, including the differentiated type, with the incidence of CNN. RESULTS Significant relationships were found between the incidence of CNN in metastatic lymph nodes and the presence of well-differentiated SCC and the presence of keratinization in tumour cells. CONCLUSIONS The results indicated that if a patient had SCC with low-grade differentiation, CNN in small lymph nodes would be difficult to detect on CT scan. Therefore, noting changes in lymph node density in the absence of CNN on CT scans is necessary in case the primary tumour is low-grade SCC.
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Affiliation(s)
- Y Morimoto
- Division of Diagnostic Radiology, Department of Oral Diagnostic Science, Kyushu Dental College, 2-6-1 Manazuru, Kokurakita-ku, Kitakyushu 803-8580, Japan.
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Nagayoshi Y, Ohba T, Yamamoto H, Miyahara Y, Tashiro H, Katabuchi H, Okamura H. Characterization of 17beta-hydroxysteroid dehydrogenase type 4 in human ovarian surface epithelial cells. Mol Hum Reprod 2005; 11:615-21. [PMID: 16219629 DOI: 10.1093/molehr/gah215] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [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: 11/14/2022] Open
Abstract
The human ovarian surface epithelium (hOSE) is a single layer of mesothelial-type primitive epithelial cells that are potential estrogen targets. It has been reported that hOSE cells can produce estrogen. However, the mechanisms that regulate estrogen level(s) in hOSE cells are not yet known. To elucidate the enzymes involved in these reactions, we examined gene expression of 17beta-hydroxysteroid dehydrogenases (17beta-HSDs) in primary hOSE (POSE) and OSE2a cells using RT-PCR. We found that POSE cells and cells of the immortalized hOSE line, OSE2a, bidirectionally converted estrone (E1) and 17beta-estradiol (E2). Both cell types expressed mRNA for 17beta-HSD type 1 (17beta-HSD1), suggesting that the enzyme is involved in the E1 to E2 conversion. Interestingly, both cells expressed 17beta-HSD4 mRNA but not 17beta-HSD2 mRNA. We prepared an antibody against the carboxyl terminal of 17beta-HSD4 (anti-17beta-HSD4 antibody), which recognized the 80 and 48 kDa proteins in POSE and OSE2a cells based on immunoblot analysis. Furthermore, immunohistochemical study revealed the presence of 17beta-HSD4 in hOSE cells in the human ovary. These results suggest that 17beta-HSD4 is involved in estrogen inactivation and may protect against an excessive accumulation of E2 in hOSE cells.
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Affiliation(s)
- Y Nagayoshi
- Department of Reproductive Medicine and Surgery, Graduate School of Medical Sciences, Kumamoto University, Honjo, Kumamoto, Japan.
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Sonoda N, Katabuchi H, Tashiro H, Ohba T, Nishimura R, Minegishi T, Okamura H. Expression of variant luteinizing hormone/chorionic gonadotropin receptors and degradation of chorionic gonadotropin in human chorionic villous macrophages. Placenta 2005; 26:298-307. [PMID: 15823616 DOI: 10.1016/j.placenta.2004.07.001] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 07/06/2004] [Indexed: 11/16/2022]
Abstract
Human gonads and non-gonadal organs/tissues express luteinizing hormone/chorionic gonadotropin (LH/CG) receptors. This study aimed to identify the LH/CG receptors and to clarify their function in human placental chorionic villous macrophages. Macrophages as well as syncytiotrophoblasts of human chorionic villous tissues were immunohistochemically positive for LH/CG receptor throughout gestation. By reverse transcription-nested polymerase chain reaction methods, villous macrophages were shown to express a variant type of LH/CG receptor, the sequencing of which revealed a deletion of exon 9. For experiments in vitro, a monocyte-macrophage cell line, THP-1, was transfected with vector alone, wild-type LH/CG receptor, and exon 9-deleted LH/CG receptor after phorbol 12-myristate 13-acetate (PMA) treatment. Non-PMA-treated THP-1 cells transfected with vector alone were also examined. THP-1 cells expressed exon 9-deleted LH/CG receptor after treatment with PMA. After the cells of the four groups were cultured in medium containing intact human CG (hCG), the concentrations of hCG and its beta-core fragment (beta-CF) were measured in the supernatant of the culture medium and in the cell cytosol. Time-dependent hCG uptake was observed in both non-PMA-treated and PMA-treated THP-1 cells, suggesting that the variant receptor is not directly involved in the ingestion of hCG. The degradation of hCG and excretion of beta-CF were progressed in PMA-treated cells but not in the un-treated cells. In the cell cytosol, the ratio of beta-CF and hCG concentrations (beta-CF/hCG) was significantly higher in the PMA-treated cells than in non-PMA-treated cells; however, it did not differ between the PMA-treated cells transfected with exon 9-deleted receptor and those transfected with vector alone. Macrophages may express the variant receptor in order to recognize the intracytoplasmic hCG and transport it to the lysosome. Among the two PMA-treated cells, the ratio was lower in those transfected with wild-type receptor. The expression of the variant receptor may modulate the degradation of hCG but be reduced by expression of the wild-type receptor in its lacking macrophages. Our data suggest a potentially important role for exon 9-deleted LH/CG receptors expressed in human placental villous macrophages in the local metabolism of hCG.
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Affiliation(s)
- N Sonoda
- Department of Reproductive Medicine and Surgery, Graduate School of Medical Sciences, Kumamoto University, Honjo 1-1-1, Kumamoto-City, Kumamoto 860-8556, Japan
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Kito S, Morimoto Y, Tanaka T, Haneji T, Ohba T. Cleavage of nucleolin and AgNOR proteins during apoptosis induced by anticancer drugs in human salivary gland cells. J Oral Pathol Med 2005; 34:478-85. [PMID: 16091115 DOI: 10.1111/j.1600-0714.2005.00346.x] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.6] [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: 01/26/2023]
Abstract
BACKGROUND To investigate the behavior of nuclear proteins in apoptosis induced by anticancer drugs in cultured human salivary gland (HSG) cells. METHODS Dynamic alternations of nucleolin and argyrophilic nucleolar organizer region (AgNOR) proteins in anticancer drug-induced apoptosis of HSG cells and in a cell-free apoptotic system were examined using Western blot analysis and immunocytochemical method. RESULTS The 110-kDa form of nucleolin and AgNOR protein decreased and the 80- and 95-kDa forms appeared during apoptosis in HSG cells and in a cell-free apoptotic system. In addition, the induction of DNA ladder formation coincided with the appearance of alternation of nucleolin and AgNOR proteins in a cell-free apoptosis. Nucleolin diffusely spread out into the nuclear material in the apoptotic body of HSG cells. CONCLUSIONS The present results indicate that alternations of nucleolin and AgNOR proteins are associated with the induction of DNA fragmentation and the final active phase of apoptosis induced by anticancer drugs in malignant salivary gland cells.
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Affiliation(s)
- S Kito
- Department of Dental Radiology, Kyushu Dental College, 2-6-1 Manazuru, Kokurakita-ku, Kitakyushu 803-8580, Japan
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Morimoto Y, Tanaka T, Kito S, Tominaga K, Yoshioka I, Yamashita Y, Shibuya T, Matsufuji Y, Kodama M, Takahashi T, Fukuda J, Ohba T. Utility of three dimension fast asymmetric spin-echo (3D-FASE) sequences in MR sialographic sequences: model and volunteer studies. Oral Dis 2005; 11:35-43. [PMID: 15641965 DOI: 10.1111/j.1601-0825.2004.01052.x] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.6] [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: 11/27/2022]
Abstract
OBJECTIVES To evaluate the utility of 3D-FASE for the visualization of salivary gland ducts for use in MR sialographic sequences. METHODS We compared MR sialographic images and virtual endoscopic views from 3D-FASE with those from three kinds of sequences described by previous reports in a 3D parotid gland duct model and volunteer. The four sequences were two-dimension fast spin-echo (2D-FSE), three-dimension fast spin-echo (3D-FSE), two-dimension fast asymmetric spin-echo (2D-FASE), and three-dimension fast asymmetric spin-echo (3D-FASE). RESULTS In the 3D parotid gland duct model, image visibility on visual score was clearest with 3D-FSE, followed by 3D-FASE (P = 0.028). In the volunteers, the visualization of images improved in the following order: 3D-FASE > 3D-FSE > 2D-FSE > 2D-FASE. CONCLUSIONS The technique of 3D-FASE sequencing is more suitable and useful for MR sialography with an appropriate acquisition time.
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Affiliation(s)
- Y Morimoto
- Department of Dental Radiology, Kyushu Dental College, Kokurakita-ku, Kitakyushu, Japan.
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Tanaka T, Morimoto Y, Tanaka Y, Kobayashi S, Okumura Y, Kito S, Okabe S, Ohba T. Radiographic examination of the mandibular (glenoid) fossa in ancient and modern man. Oral Dis 2004; 10:369-77. [PMID: 15533214 DOI: 10.1111/j.1601-0825.2004.01022.x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [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: 11/27/2022]
Abstract
OBJECTIVE To compare the morphology of the mandibular (glenoid) fossa between ancient and modern Japanese. METHODS There were 221 specimens from the ancient period and 206 specimens from the modern period. Radiographs of the mandibular fossa were obtained using a modified Schuller technique and were studied. The length, depth, and area of the mandibular fossa and angulation of the frontal slope of the mandibular fossa on the radiographs were automatically computed. In addition, morphological changes of the mandibular fossa in the ancient or modern periods on radiographs were evaluated in order to assess tendency of temporomandibular joint disorder (TMD). RESULT The ratio of mandibular fossa having morphological alternation in the modern period was greater than that in the Yayoi. Differences in the length and area between the right and left sides became progressively larger from the Yayoi to modern periods. The angulation of the anterior slope of the mandibular fossa in the modern period was smaller than that in other periods. CONCLUSION The morphology of the mandibular fossa was shown to have changed and asymmetry has increased from the Yayoi to modern periods. It can be speculated that this change in morphology of the mandibular fossa in the modern period is the result of an increase of TMD.
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Affiliation(s)
- T Tanaka
- Department of Dental Radiology, Kyushu Dental College, Kitakyushu, Japan
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Nagafuji K, Aoki K, Henzan H, Kato K, Miyamoto T, Eto T, Nagatoshi Y, Ohba T, Obama K, Gondo H, Harada M. Cidofovir for treating adenoviral hemorrhagic cystitis in hematopoietic stem cell transplant recipients. Bone Marrow Transplant 2004; 34:909-14. [PMID: 15361907 DOI: 10.1038/sj.bmt.1704682] [Citation(s) in RCA: 75] [Impact Index Per Article: 3.8] [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: 11/09/2022]
Abstract
Adenovirus (AdV) infection is an important cause of morbidity and mortality in hematopoietic stem cell transplant (HSCT) recipients. We treated 16 patients with AdV hemorrhagic cystitis (HC) following HSCT with cidofovir (CDV; 1 mg/kg/day, three times weekly for 3 weeks). Patients included 10 males and six females with a median age of 50 years (range 10-62). Two of the 16 patients were unevaluable because of early death from nonadenoviral causes. CDV therapy cleared AdV from urine in 12 of 14 patients (86%). Of 14 patients, 10 (71%) showed clinical improvements in HC. Among 14 patients, seven (50%) had avoided renal damage, the most important CDV toxicity. One patient previously treated with foscarnet for cytomegalovirus (CMV) required hemodialysis, and CDV treatment was discontinued. In another patient, CDV treatment was discontinued because of grade 2 nephrotoxicity. Four patients became positive for CMV antigenemia while being treated with CDV, and two developed herpes simplex virus (HSV) stomatitis while being treated with CDV. CDV proved effective in treating AdV HC in transplant patients. However, CDV at 1 mg/kg/day given three times weekly failed to prevent breakthrough infection with CMV and HSV in some patients.
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Affiliation(s)
- K Nagafuji
- Medicine and Biosystemic Science, Kyushu University Graduate School of Medical Sciences, Fukuoka, Japan.
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Sunaga M, Ohba T, Suzuki T, Kanoh H, Hagiwara S, Kaneko K. Nanostructure Characterization of Carbon Materials with Superwide Pressure Range Adsorption Technique with the Aid of Grand Canonical Monte Carlo Simulation. J Phys Chem B 2004. [DOI: 10.1021/jp036315t] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- M. Sunaga
- Department of Chemistry, Faulty of Science, Chiba University, 1-33 Yayoi, Inage, Chiba 263-8522, Japan, Center for Frontier Electronics and Photonics, Chiba University, 1-33, Yayoi, Inage, Chiba 263-8522, Japan, and Department of Environmental Science and Technology, Faculty of Engineering, Shinshu University, 4-17-1 Wakasato, Nagano, 380-8553, Japan, 3-2-16 Kita-machi, Nishitokyo, Tokyo 202-003, Japan
| | - T. Ohba
- Department of Chemistry, Faulty of Science, Chiba University, 1-33 Yayoi, Inage, Chiba 263-8522, Japan, Center for Frontier Electronics and Photonics, Chiba University, 1-33, Yayoi, Inage, Chiba 263-8522, Japan, and Department of Environmental Science and Technology, Faculty of Engineering, Shinshu University, 4-17-1 Wakasato, Nagano, 380-8553, Japan, 3-2-16 Kita-machi, Nishitokyo, Tokyo 202-003, Japan
| | - T. Suzuki
- Department of Chemistry, Faulty of Science, Chiba University, 1-33 Yayoi, Inage, Chiba 263-8522, Japan, Center for Frontier Electronics and Photonics, Chiba University, 1-33, Yayoi, Inage, Chiba 263-8522, Japan, and Department of Environmental Science and Technology, Faculty of Engineering, Shinshu University, 4-17-1 Wakasato, Nagano, 380-8553, Japan, 3-2-16 Kita-machi, Nishitokyo, Tokyo 202-003, Japan
| | - H. Kanoh
- Department of Chemistry, Faulty of Science, Chiba University, 1-33 Yayoi, Inage, Chiba 263-8522, Japan, Center for Frontier Electronics and Photonics, Chiba University, 1-33, Yayoi, Inage, Chiba 263-8522, Japan, and Department of Environmental Science and Technology, Faculty of Engineering, Shinshu University, 4-17-1 Wakasato, Nagano, 380-8553, Japan, 3-2-16 Kita-machi, Nishitokyo, Tokyo 202-003, Japan
| | - S. Hagiwara
- Department of Chemistry, Faulty of Science, Chiba University, 1-33 Yayoi, Inage, Chiba 263-8522, Japan, Center for Frontier Electronics and Photonics, Chiba University, 1-33, Yayoi, Inage, Chiba 263-8522, Japan, and Department of Environmental Science and Technology, Faculty of Engineering, Shinshu University, 4-17-1 Wakasato, Nagano, 380-8553, Japan, 3-2-16 Kita-machi, Nishitokyo, Tokyo 202-003, Japan
| | - K. Kaneko
- Department of Chemistry, Faulty of Science, Chiba University, 1-33 Yayoi, Inage, Chiba 263-8522, Japan, Center for Frontier Electronics and Photonics, Chiba University, 1-33, Yayoi, Inage, Chiba 263-8522, Japan, and Department of Environmental Science and Technology, Faculty of Engineering, Shinshu University, 4-17-1 Wakasato, Nagano, 380-8553, Japan, 3-2-16 Kita-machi, Nishitokyo, Tokyo 202-003, Japan
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Ohba T, Omori T, Kanoh H, Yudasaka M, Iijima S, Kaneko K. Interstitial nanopore change of single wall carbon nanohorn assemblies with high temperature treatment. Chem Phys Lett 2004. [DOI: 10.1016/j.cplett.2004.03.054] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Tanaka T, Morimoto Y, Kito S, Ro T, Masumi T, Ichiya Y, Ohba T. Evaluation of coronal CT findings of rare cases of isolated medial orbital wall blow-out fractures. Dentomaxillofac Radiol 2004; 32:300-3. [PMID: 14709604 DOI: 10.1259/dmfr/12630722] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [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: 11/05/2022] Open
Abstract
OBJECTIVES To report rare cases of isolated medial orbital wall blow-out fractures and to evaluate their coronal CT findings. METHODS Nine cases of medial orbital wall blow-out fractures, diagnosed by coronal CT in a general medical hospital between 1995 and 1999, were studied. CT was performed using direct coronal acquisition with a slice thickness of 5 mm. Images were obtained at bone window settings. Clinical examination findings from the medical records were used to give information on the cause of injury, ocular symptoms and the days after injury that the CT examination was performed. RESULTS Most of the patients (67%) were young male adults. The cause of injury was most frequently the result of fist fighting or athletics (78%). Diplopia and/or limitation of the gaze were the main ocular symptoms (78%). The average time from injury to CT examination was 4 days (range 0-16 days). Seven of the nine patients with medial orbital wall fractures had isolated medial orbital wall blow-out fractures. Herniation of orbital contents toward the ethmoid sinus was observed among all nine fractures. Only three patients (33%) had a swelling and/or medial deviation of the medial rectus muscle, all three having isolated medial orbital wall blow-out fractures. CONCLUSIONS Nine cases of medial orbital wall blow-out fractures were examined, seven of which were isolated medial wall blow-out fractures. CT findings of this type of fracture included herniation of the orbital contents toward the ethmoid sinus. However, swelling and/or medial deviation of the medial rectus muscle was also seen.
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Affiliation(s)
- T Tanaka
- Department of Dental Radiology, Kyushu Dental College, Kitakyushu, Japan
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Morimoto Y, Tanaka T, Kito S, Yoshioka I, Shibuya T, Okabe Y, Matsufuji Y, Ohba T. Instability of background fat intensity suppression using fat-saturated (FS) MR imaging techniques according to region and reconstruction procedure in patients with oral cancer. Oral Oncol 2004; 40:332-40. [PMID: 14747066 DOI: 10.1016/j.oraloncology.2003.09.002] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [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: 11/28/2022]
Abstract
The purpose of the present study is to evaluate the background fat intensity suppression instability of each area in the head and neck region, and in the post-reconstruction with metal plate and myocutaneous flap, of patients with oral cancer using fat-saturated (FS) images. STIR and FS T2-weighted images at pre- and post-surgery in 59 patients with oral cancer were scored for uniformity of fat suppression and tissue conspicuity in each region of the head and neck. The scores of FS on uniformity of fat suppression pre-operatively were worse than those of STIR in the mandibular level, but not lesion and tissue conspicuity. However, the deterioration both of scores between pre- and post-surgery using FS was worse than that using STIR using metal plate and/or myocutaneous flap. At diagnosis, we should recognize on MR images using FS that instability of the status of fat suppression might be brought about by respective area and reconstruction with metal plate and myocutaneous flap of patients with oral cancer.
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Affiliation(s)
- Y Morimoto
- Department of Dental Radiology, Kyushu Dental College, Kokurakita-ku, Kitakyushu 803-8580, Japan.
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Ohba T, Omori T, Kanoh H, Kaneko K. Cluster Structures of Supercritical CH4 Confined in Carbon Nanospaces with in Situ High-Pressure Small-Angle X-ray Scattering and Grand Canonical Monte Carlo Simulation. J Phys Chem B 2003. [DOI: 10.1021/jp0363646] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- T. Ohba
- Department of Chemistry, Faculty of Science, Chiba University, 1-33 Yayoi, Inage, Chiba 263-8522, Japan, and Center for Frontier Electronics and Photonics, Chiba University, 1-33 Yayoi, Inage, Chiba 263-8522, Japan
| | - T. Omori
- Department of Chemistry, Faculty of Science, Chiba University, 1-33 Yayoi, Inage, Chiba 263-8522, Japan, and Center for Frontier Electronics and Photonics, Chiba University, 1-33 Yayoi, Inage, Chiba 263-8522, Japan
| | - H. Kanoh
- Department of Chemistry, Faculty of Science, Chiba University, 1-33 Yayoi, Inage, Chiba 263-8522, Japan, and Center for Frontier Electronics and Photonics, Chiba University, 1-33 Yayoi, Inage, Chiba 263-8522, Japan
| | - K. Kaneko
- Department of Chemistry, Faculty of Science, Chiba University, 1-33 Yayoi, Inage, Chiba 263-8522, Japan, and Center for Frontier Electronics and Photonics, Chiba University, 1-33 Yayoi, Inage, Chiba 263-8522, Japan
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Ohba T, Masaki M, Ohtsuka R. A simulation model for migrations and dispersals of prehistoric human populations. Jinruigaku Zasshi 2002; 98:513-20. [PMID: 12346147 DOI: 10.1537/ase1911.98.513] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
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Morimoto Y, Tanaka T, Yoshioka I, Masumi S, Yamashita M, Ohba T. Virtual endoscopic view of salivary gland ducts using MR sialography data from three dimension fast asymmetric spin-echo (3D-FASE) sequences: a preliminary study. Oral Dis 2002; 8:268-74. [PMID: 12363112 DOI: 10.1034/j.1601-0825.2002.01819.x] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.4] [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: 11/23/2022]
Abstract
OBJECTIVES We performed magnetic resonance (MR) sialography of parotid gland and/or submandibular gland ducts using three-dimensional fast asymmetric spin-echo (3D-FASE) sequencing. The objective was to make three-dimensional (3D) reconstruction images and virtual endoscopic views of the parotid gland ducts using MR sialography data sets of 3D-FASE sequences. METHODS We reviewed the MR sialography data sets with 3D-FASE sequencing of 10 control volunteers and six patients. Three-dimensional reconstruction images and virtual endoscopic views of the parotid gland and/or submandibular gland ducts were generated with maximum intensity projection (MIP), shaded surface display (SSD), and volume rendering techniques (VRT). RESULTS The main parotid gland and/or submandibular gland ducts, large branches within the glands, and small branches were fairly well defined in a very short acquisition time on MR sialographic images with 3D-FASE sequencing in nine of the 10 healthy volunteers. The 3D-reconstruction images of the parotid gland ducts and/or submandibular gland ducts showed the entire length of the branch paths and complete images from all angles, and the virtual endoscopic views showed the endoluminal tracts of the main ducts and the large branches in nine. In the patient with Sjogren's syndrome, chronic sialoadenitis, and salivary calculi in the Wharton ducts, the MR sialographic images showed diffuse areas of punctate high signal intensity, dilatation of Stensen's duct, or stones of Wharton's duct, respectively. Furthermore, the 3D-reconstruction images of the salivary gland ducts showed the stenoses and stones in the branch paths and complete images from all angles, and the virtual endoscopic views showed the stenoses and stones in the endoluminal tracts of the main and large branches. CONCLUSIONS Our initial experience showed that virtual MR endoscopy could be performed to observe the endoluminal tracts of parotid and submandibular glands. The clinical use of the virtual MR endoscopy for salivary gland ducts has not been established yet. Future applications of the 3D-reconstruction images and virtual endoscopic views using MR sialography data sets of 3D-FASE sequences are very attractive and further expansion of this field is expected.
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Affiliation(s)
- Y Morimoto
- Department of Dental Radiology, Kyushu Dental College, Kitakyushu, Japan.
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Tanaka T, Morimoto Y, Masumi S, Tominaga K, Ohba T. Utility of frequency-selective fat saturation T2-weighted MR images for the detection of joint effusion in the temporomandibular joint. Dentomaxillofac Radiol 2002; 31:305-12. [PMID: 12203129 DOI: 10.1038/sj.dmfr.4600713] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2002] [Revised: 05/03/2002] [Accepted: 05/22/2002] [Indexed: 11/09/2022] Open
Abstract
OBJECTIVES To evaluate joint effusion in the temporomandibular joint (TMJ) using frequency-selective fat saturation (FS) T2-weighted images and assess this technique. To investigate whether bone marrow abnormalities and magnetic resonance imaging (MRI) findings of internal derangement may be linked to joint effusion in the TMJ in patients with pain. METHODS TMJ effusion was sought on FS T2-weighted images and conventional T2-weighted images in 400 joints from 200 patients with TMJ-related pain. Self-reported pain records were obtained from patients immediately before MRI and images assessed by the amount of TMJ fluid graded bilaterally using reference films by two radiologists. Other parameters recorded included disk displacement categories and condyle marrow abnormalities. The association between the recorded parameters and TMJ effusion judged by FS-sequences or conventional sequences was analysed using chi-square and Kappa tests. RESULTS The detection rate of TMJ effusion by FS-sequences was significantly greater than by conventional methods, and the results showed a significant relationship between MRI interpretation of TMJ effusion using FS-sequences or conventional methods and the presence of pain. The correlation between TMJ effusion on FS-sequences and pain was significantly stronger than the conventional method. Kappa test indicated good agreement between pain and MRI TMJ effusion by FS-sequences (kappa = 0.66), but not by conventional sequences (kappa = 0.56). The other parameters showed a similar trend for TMJ-related pain. CONCLUSIONS FS T2-weighted imaging is useful for detection of TMJ effusion, without known causes and confirms the importance of TMJ effusion as an indicator in patients with TMJ-related pain, bone abnormalities, and disk displacement.
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Affiliation(s)
- T Tanaka
- Department of Dental Radiology, Kyushu Dental College, Kokurakita-ku, Kitakyushu 803-8580, Japan
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Affiliation(s)
- T. Ohba
- Physical Chemistry, Material Science, Graduate School of Natural Science and Technology, Chiba University, 1-33, Yayoi, Inage, Chiba 263-8522, Japan, and Venture Business Laboratory, Chiba University, 1-33, Yayoi, Inage, Chiba 263-8522, Japan
| | - K. Kaneko
- Physical Chemistry, Material Science, Graduate School of Natural Science and Technology, Chiba University, 1-33, Yayoi, Inage, Chiba 263-8522, Japan, and Venture Business Laboratory, Chiba University, 1-33, Yayoi, Inage, Chiba 263-8522, Japan
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Kaneko K, Ohba T, Hattori Y, Sunaga M, Tanaka H, Kanoh H. Role of Gas Adsorption in Nanopore Characterization. ACTA ACUST UNITED AC 2002. [DOI: 10.1016/s0167-2991(02)80214-2] [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: 03/07/2023]
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Abstract
To gain further insight into diversiform phosphorus in bovine milk, we separated skim milk into casein micelle and serum fractions by microfiltration and subjected them to liquid-state 31P-nuclear magnetic resonance (NMR) spectroscopy. As previously reported, the skim milk spectrum showed a broad and indistinct peak from phosphoserine residue (SerP) of casein. In the casein micelle spectrum, however, the SerP peak was more clearly observed with a phosphate peak that may be from micellar calcium phosphate (MCP). The serum spectrum was the same as skim milk spectrum, except for SerP peak. Furthermore, two types of casein micelle fractions, with 0.90 and 1.04 of [beta-casein + kappa-casein]/[alpha(s1)-casein + alpha(s2)-casein] ratios were generated by different temperature microfiltrations, occurring because beta-casein is released from the micelle at a low temperature. The shape of SerP peaks changed dramatically in both the casein micelle spectra, when the temperature dropped from 35 to 5 degrees C. Deconvolution analysis indicated that each SerP peak comprised the same set of four peaks. Half-width and composition discriminated between the two types of casein micelle fractions. As a consequence, there was significant interaction between casein micelle and milk serum, causing cloudiness of SerP in the liquid-state 31P-NMR spectrum of milk. Casein composition influenced the SerP-MCP interaction in micellar structure. Shape changing of the SerP peak was discussed in connection with beta-casein-release phenomenon.
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Affiliation(s)
- T Ishii
- Sapporo Research Laboratory, Snow Brand Milk Products Co., Ltd., Japan.
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