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Suemitsu K, Shiraki T, Iida O, Oka K, Ota N, Izumi M. Ultrasound-Assessed Lesion Morphology and Drug-Coated Balloon Treatment for de novo Dysfunctional Arteriovenous Fistula in Hemodialysis Patients. J Endovasc Ther 2023:15266028231215225. [PMID: 38032055 DOI: 10.1177/15266028231215225] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [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: 12/01/2023]
Abstract
AIM This study aimed to evaluate the effect of ultrasound-assessed lesion morphology on the outcomes of drug-coated balloon (DCB) versus plain old balloon angioplasty (POBA) treatment for de novo dysfunctional arteriovenous fistulas (AVF) lesions. METHODS This single-center retrospective study enrolled 114 consecutive patients (mean age, 73 ± 10 years; male, 69%) with de novo dysfunctional AVF lesions who underwent percutaneous transluminal angioplasty (PTA) using DCB (n = 48) and POBA (n = 66). The morphology of the stenotic lesions, evaluated using ultrasonography, was classified into intimal hyperplasia and shrinking types. The outcome measure was 12-month primary patency. Factors associated with loss of primary patency were evaluated using Cox proportional hazards models. RESULTS The baseline characteristics were not significantly different between the 2 treatment groups. The 12-month primary patency rate was significantly higher in the DCB group than in the POBA group (66.8 ± 7.1% versus 35.9 ± 6.3%, P = .006). The 12-month primary patency rate in the lesions with intimal hyperplasia type was not significantly different (DCB: 70.3 ± 9.5% versus POBA: 45.9 ± 8.0%; P = .310), whereas that in the shrinking type was significantly higher in the DCB group than in the POBA group (61.9 ± 10.6% versus 15.2 ± 8.1%; P < .001). The interaction analysis demonstrated that lesion morphology had a significantly different hazard ratio (HR) for restenosis between the POBA and DCB groups (P for interaction = .031). The multivariate analysis revealed that DCB usage (adjusted hazard ratio [aHR], 0.49; 95% confidence interval [CI]: [0.28, 0.87]; P = .015), ultrasound-assessed lesion morphology (shrinking type: aHR, 1.77; 95% CI: [1.07, 2.93]; P = .026), and location of stenosis (aHR, 2.26; 95% CI: 1.15, 4.46; P = .018) were significantly associated with AVF patency after PTA. CONCLUSION This study revealed that lesion morphology evaluated using ultrasonography had a differential impact on DCB and POBA outcomes. The therapeutic effect of DCB was unexpectedly confirmed in the shrinking type. CLINICAL IMPACT The effectiveness of DCB in inhibiting smooth muscle cell proliferation in intimal hyperplasia lesions was expected based on the known mechanism of action of paclitaxel. However the therapeutic effect of DCB was unexpectedly confirmed in the shrinking type too. We may not need to hesitate usage of DCB for shrinking type.
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Affiliation(s)
- Kotaro Suemitsu
- Department of Internal Medicine, Division of Kidney and Dialysis, Kansai Rosai Hospital, Amagasaki, Japan
| | - Tatsuya Shiraki
- Department of Cardiovascular Medicine, Graduate School of Medicine, Osaka University, Suita, Japan
| | - Osamu Iida
- Cardiovascular Division, Osaka Police Hospital, Osaka, Japan
| | - Kanako Oka
- Department of Internal Medicine, Division of Kidney and Dialysis, Kansai Rosai Hospital, Amagasaki, Japan
| | - Naomi Ota
- Department of Internal Medicine, Division of Kidney and Dialysis, Kansai Rosai Hospital, Amagasaki, Japan
| | - Masaaki Izumi
- Department of Internal Medicine, Division of Kidney and Dialysis, Kansai Rosai Hospital, Amagasaki, Japan
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Asao T, Yasui K, Ota N, Shioi M, Hayashi K, Maki S, Ito Y, Onoe T, Ogawa H, Asakura H, Murayama S, Nishimura T, Takahashi T, Ohde Y, Harada H. PO-1202 Proton Beam Therapy for Stage I and Lymph Node-Negative Stage IIA Non-Small Cell Lung Cancer. Radiother Oncol 2021. [DOI: 10.1016/s0167-8140(21)07653-2] [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: 10/20/2022]
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Matsuoka Y, Iida O, Suemitsu K, Oka K, Ota N, Izumi M. Use of a fluoropolymer-based paclitaxel-eluting stent for arteriovenous graft outflow vein stenosis in hemodialysis patients. J Vasc Surg Cases Innov Tech 2021; 7:326-331. [PMID: 34041421 PMCID: PMC8144112 DOI: 10.1016/j.jvscit.2021.03.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2020] [Accepted: 03/25/2021] [Indexed: 11/04/2022] Open
Abstract
We implanted a fluoropolymer-based paclitaxel-eluting stent (FP-PES) in four hemodialysis patients with refractory outflow venous stenosis of their arteriovenous graft. The mean observation period after FP-PES implantation was 11.5 ± 4.7 months (range, 7.0-18.0 months). After FP-PES implantation, the patients were evaluated by ultrasound every 3 months. No of the patients experienced neointimal hyperplasia in the stents during the observation period, and no reintervention was performed. FP-PESs could be an attractive alternative to percutaneous transluminal angioplasty for patients with refractory outflow venous stenosis of arteriovenous hemodialysis grafts.
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Ota N, Hirata M, Yasui K, Yamamoto A, Maki S, Ito Y, Onoe T, Ogawa H, Asakura H, Murayama S, Deguchi S, Mitsuya K, Harada H, Hayashi N, Nishimura T. LINAC-Based Stereotactic Irradiation For Patients With Up To Ten Brain Metastases. Int J Radiat Oncol Biol Phys 2020. [DOI: 10.1016/j.ijrobp.2020.07.2053] [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: 11/24/2022]
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Iio R, Akiyama S, Mitsumoto K, Iwata Y, Okushima H, Shimada K, Ota N, Tomida K, Fushimi H, Shoji T, Matsumoto M, Hayashi T. Thrombotic thrombocytopenic purpura developed during the conservative treatment of anti-phospholipase A 2 receptor antibody-positive idiopathic membranous nephropathy: a case report. BMC Nephrol 2020; 21:431. [PMID: 33046023 PMCID: PMC7552470 DOI: 10.1186/s12882-020-02086-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2020] [Accepted: 10/02/2020] [Indexed: 11/10/2022] Open
Abstract
Background Idiopathic membranous nephropathy (MN) is one of the major glomerulonephritis that cause nephrotic syndrome. The phospholipase A2 receptor (PLA2R) has recently been identified as an endogenous antigen of idiopathic MN. Thrombotic thrombocytopenic purpura (TTP) is a disorder characterized by schistocytes, hemolytic anemia, thrombocytopenia, and organ dysfunction which occurs as a result of thrombi. Patients with acquired TTP have autoantibodies against a disintegrin and metalloprotease with thrombospondin type 1 motif 13 (ADAMTS13). These autoantibodies act as an inhibitor and cause ADAMTS13 deficiency. Idiopathic MN and acquired TTP are usually considered as independent autoimmune diseases. We experienced a patient who developed TTP during the conservative treatment of idiopathic MN, with the coexistence of ADAMTS13 inhibitor and anti-PLA2R antibody. Case presentation A 73-year-old man presented with thrombocytopenia, hemolytic anemia, disturbance of consciousness, and acute kidney injury after 4-year course of biopsy-proven idiopathic MN. ADAMTS13 activity was undetectable and the ADAMTS13 inhibitor was identified. Additionally, he was positive for anti-PLA2R antibody. The patient did not have any diseases that could cause secondary thrombotic microangiopathy, and he was diagnosed with acquired TTP. Steroid therapy and plasma exchange were initiated and the acquired TTP resolved. MN achieved remission 3 months after the anti-PLA2R antibody disappeared. Conclusions This is the first reported case of acquired TTP developed during conservative treatment of idiopathic MN, with both ADAMTS13 inhibitor and anti-PLA2R antibody positive at the onset of the TTP. The present case suggests that idiopathic MN might be associated with the development of some cases of acquired TTP.
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Affiliation(s)
- Rei Iio
- Department of Kidney Disease and Hypertension, Osaka General Medical Center, 3-1-56 Bandaihigashi, Sumiyoshi-ku, Osaka, 558-8558, Japan
| | - Shin'ichi Akiyama
- Division of Nephrology, Department of Internal Medicine, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, 466-8550, Japan
| | - Kensuke Mitsumoto
- Department of Kidney Disease and Hypertension, Osaka General Medical Center, 3-1-56 Bandaihigashi, Sumiyoshi-ku, Osaka, 558-8558, Japan
| | - Yukimasa Iwata
- Department of Kidney Disease and Hypertension, Osaka General Medical Center, 3-1-56 Bandaihigashi, Sumiyoshi-ku, Osaka, 558-8558, Japan
| | - Hiroki Okushima
- Department of Kidney Disease and Hypertension, Osaka General Medical Center, 3-1-56 Bandaihigashi, Sumiyoshi-ku, Osaka, 558-8558, Japan
| | - Karin Shimada
- Department of Kidney Disease and Hypertension, Osaka General Medical Center, 3-1-56 Bandaihigashi, Sumiyoshi-ku, Osaka, 558-8558, Japan
| | - Naomi Ota
- Department of Kidney Disease and Hypertension, Osaka General Medical Center, 3-1-56 Bandaihigashi, Sumiyoshi-ku, Osaka, 558-8558, Japan
| | - Kodo Tomida
- Department of Kidney Disease and Hypertension, Osaka General Medical Center, 3-1-56 Bandaihigashi, Sumiyoshi-ku, Osaka, 558-8558, Japan
| | - Hiroaki Fushimi
- Department of Pathology, Osaka General Medical Center, 3-1-56 Bandaihigashi, Sumiyoshi-ku, Osaka, 558-8558, Japan
| | - Tatsuya Shoji
- Department of Kidney Disease and Hypertension, Osaka General Medical Center, 3-1-56 Bandaihigashi, Sumiyoshi-ku, Osaka, 558-8558, Japan
| | - Masanori Matsumoto
- Department of Blood Transfusion Medicine, Nara Medical University, 840 Shijyo-cho, Kashihara, Nara, 634-8522, Japan
| | - Terumasa Hayashi
- Department of Kidney Disease and Hypertension, Osaka General Medical Center, 3-1-56 Bandaihigashi, Sumiyoshi-ku, Osaka, 558-8558, Japan.
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Kriticos DJ, De Barro PJ, Yonow T, Ota N, Sutherst RW. The potential geographical distribution and phenology of Bemisia tabaci Middle East/Asia Minor 1, considering irrigation and glasshouse production. Bull Entomol Res 2020; 110:567-576. [PMID: 32160930 DOI: 10.1017/s0007485320000061] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The Bemisia tabaci species complex is one of the most important pests of open field and protected cropping globally. Within this complex, one species (Middle East Asia Minor 1, B. tabaci MEAM1, formerly biotype B) has been especially problematic, invading widely and spreading a large variety of plant pathogens, and developing broad spectrum pesticide resistance. Here, we fit a CLIMEX model to the distribution records of B. tabaci MEAM1, using experimental observations to calibrate its temperature responses. In fitting the model, we consider the effects of irrigation and glasshouses in extending its potential range. The validated niche model estimates its potential distribution as being considerably broader than its present known distribution, especially in the Americas, Africa and Asia. The potential distribution of the fitted model encompasses the known distribution of B. tabaci sensu lato, highlighting the magnitude of the threat posed globally by this invasive pest species complex and the viruses it vectors to open field and protected agriculture.
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Affiliation(s)
- D J Kriticos
- CSIRO, GPO Box 1700, Canberra2601, Australia
- University of Queensland, Brisbane, QLD 4072, Australia
- InSTePP, University of Minnesota, St. Paul, MN55108, USA
| | - P J De Barro
- CSIRO, GPO Box 2583, Brisbane, QLD 4001, Australia
| | - T Yonow
- InSTePP, University of Minnesota, St. Paul, MN55108, USA
| | - N Ota
- CSIRO, GPO Box 1700, Canberra2601, Australia
| | - R W Sutherst
- University of Queensland, Brisbane, QLD 4072, Australia
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Gando A, Gando Y, Hachiya T, Ha Minh M, Hayashida S, Honda Y, Hosokawa K, Ikeda H, Inoue K, Ishidoshiro K, Kamei Y, Kamizawa K, Kinoshita T, Koga M, Matsuda S, Mitsui T, Nakamura K, Ono A, Ota N, Otsuka S, Ozaki H, Shibukawa Y, Shimizu I, Shirahata Y, Shirai J, Sato T, Soma K, Suzuki A, Takeuchi A, Tamae K, Ueshima K, Watanabe H, Chernyak D, Kozlov A, Obara S, Yoshida S, Takemoto Y, Umehara S, Fushimi K, Hirata S, Berger BE, Fujikawa BK, Learned JG, Maricic J, Winslow LA, Efremenko Y, Karwowski HJ, Markoff DM, Tornow W, O'Donnell T, Detwiler JA, Enomoto S, Decowski MP, Menéndez J, Dvornický R, Šimkovic F. Precision Analysis of the ^{136}Xe Two-Neutrino ββ Spectrum in KamLAND-Zen and Its Impact on the Quenching of Nuclear Matrix Elements. Phys Rev Lett 2019; 122:192501. [PMID: 31144924 DOI: 10.1103/physrevlett.122.192501] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/13/2019] [Revised: 03/11/2019] [Indexed: 06/09/2023]
Abstract
We present a precision analysis of the ^{136}Xe two-neutrino ββ electron spectrum above 0.8 MeV, based on high-statistics data obtained with the KamLAND-Zen experiment. An improved formalism for the two-neutrino ββ rate allows us to measure the ratio of the leading and subleading 2νββ nuclear matrix elements (NMEs), ξ_{31}^{2ν}=-0.26_{-0.25}^{+0.31}. Theoretical predictions from the nuclear shell model and the majority of the quasiparticle random-phase approximation (QRPA) calculations are consistent with the experimental limit. However, part of the ξ_{31}^{2ν} range allowed by the QRPA is excluded by the present measurement at the 90% confidence level. Our analysis reveals that predicted ξ_{31}^{2ν} values are sensitive to the quenching of NMEs and the competing contributions from low- and high-energy states in the intermediate nucleus. Because these aspects are also at play in neutrinoless ββ decay, ξ_{31}^{2ν} provides new insights toward reliable neutrinoless ββ NMEs.
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Affiliation(s)
- A Gando
- Research Center for Neutrino Science, Tohoku University, Sendai 980-8578, Japan
| | - Y Gando
- Research Center for Neutrino Science, Tohoku University, Sendai 980-8578, Japan
| | - T Hachiya
- Research Center for Neutrino Science, Tohoku University, Sendai 980-8578, Japan
| | - M Ha Minh
- Research Center for Neutrino Science, Tohoku University, Sendai 980-8578, Japan
| | - S Hayashida
- Research Center for Neutrino Science, Tohoku University, Sendai 980-8578, Japan
| | - Y Honda
- Research Center for Neutrino Science, Tohoku University, Sendai 980-8578, Japan
| | - K Hosokawa
- Research Center for Neutrino Science, Tohoku University, Sendai 980-8578, Japan
| | - H Ikeda
- Research Center for Neutrino Science, Tohoku University, Sendai 980-8578, Japan
| | - K Inoue
- Research Center for Neutrino Science, Tohoku University, Sendai 980-8578, Japan
- Kavli Institute for the Physics and Mathematics of the Universe (WPI), The University of Tokyo Institutes for Advanced Study, The University of Tokyo, Kashiwa, Chiba 277-8583, Japan
| | - K Ishidoshiro
- Research Center for Neutrino Science, Tohoku University, Sendai 980-8578, Japan
| | - Y Kamei
- Research Center for Neutrino Science, Tohoku University, Sendai 980-8578, Japan
| | - K Kamizawa
- Research Center for Neutrino Science, Tohoku University, Sendai 980-8578, Japan
| | - T Kinoshita
- Research Center for Neutrino Science, Tohoku University, Sendai 980-8578, Japan
| | - M Koga
- Research Center for Neutrino Science, Tohoku University, Sendai 980-8578, Japan
- Kavli Institute for the Physics and Mathematics of the Universe (WPI), The University of Tokyo Institutes for Advanced Study, The University of Tokyo, Kashiwa, Chiba 277-8583, Japan
| | - S Matsuda
- Research Center for Neutrino Science, Tohoku University, Sendai 980-8578, Japan
| | - T Mitsui
- Research Center for Neutrino Science, Tohoku University, Sendai 980-8578, Japan
| | - K Nakamura
- Research Center for Neutrino Science, Tohoku University, Sendai 980-8578, Japan
- Kavli Institute for the Physics and Mathematics of the Universe (WPI), The University of Tokyo Institutes for Advanced Study, The University of Tokyo, Kashiwa, Chiba 277-8583, Japan
| | - A Ono
- Research Center for Neutrino Science, Tohoku University, Sendai 980-8578, Japan
| | - N Ota
- Research Center for Neutrino Science, Tohoku University, Sendai 980-8578, Japan
| | - S Otsuka
- Research Center for Neutrino Science, Tohoku University, Sendai 980-8578, Japan
| | - H Ozaki
- Research Center for Neutrino Science, Tohoku University, Sendai 980-8578, Japan
| | - Y Shibukawa
- Research Center for Neutrino Science, Tohoku University, Sendai 980-8578, Japan
| | - I Shimizu
- Research Center for Neutrino Science, Tohoku University, Sendai 980-8578, Japan
| | - Y Shirahata
- Research Center for Neutrino Science, Tohoku University, Sendai 980-8578, Japan
| | - J Shirai
- Research Center for Neutrino Science, Tohoku University, Sendai 980-8578, Japan
| | - T Sato
- Research Center for Neutrino Science, Tohoku University, Sendai 980-8578, Japan
| | - K Soma
- Research Center for Neutrino Science, Tohoku University, Sendai 980-8578, Japan
| | - A Suzuki
- Research Center for Neutrino Science, Tohoku University, Sendai 980-8578, Japan
| | - A Takeuchi
- Research Center for Neutrino Science, Tohoku University, Sendai 980-8578, Japan
| | - K Tamae
- Research Center for Neutrino Science, Tohoku University, Sendai 980-8578, Japan
| | - K Ueshima
- Research Center for Neutrino Science, Tohoku University, Sendai 980-8578, Japan
| | - H Watanabe
- Research Center for Neutrino Science, Tohoku University, Sendai 980-8578, Japan
| | - D Chernyak
- Kavli Institute for the Physics and Mathematics of the Universe (WPI), The University of Tokyo Institutes for Advanced Study, The University of Tokyo, Kashiwa, Chiba 277-8583, Japan
| | - A Kozlov
- Kavli Institute for the Physics and Mathematics of the Universe (WPI), The University of Tokyo Institutes for Advanced Study, The University of Tokyo, Kashiwa, Chiba 277-8583, Japan
| | - S Obara
- Kyoto University, Department of Physics, Kyoto 606-8502, Japan
| | - S Yoshida
- Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - Y Takemoto
- Research Center for Nuclear Physics, Osaka University, Ibaraki, Osaka 567-0047, Japan
| | - S Umehara
- Research Center for Nuclear Physics, Osaka University, Ibaraki, Osaka 567-0047, Japan
| | - K Fushimi
- Department of Physics, Tokushima University, Tokushima 770-8506, Japan
| | - S Hirata
- Graduate School of Integrated Arts and Sciences, Tokushima University, Tokushima 770-8502, Japan
| | - B E Berger
- Kavli Institute for the Physics and Mathematics of the Universe (WPI), The University of Tokyo Institutes for Advanced Study, The University of Tokyo, Kashiwa, Chiba 277-8583, Japan
- Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - B K Fujikawa
- Kavli Institute for the Physics and Mathematics of the Universe (WPI), The University of Tokyo Institutes for Advanced Study, The University of Tokyo, Kashiwa, Chiba 277-8583, Japan
- Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - J G Learned
- Department of Physics and Astronomy, University of Hawaii at Manoa, Honolulu, Hawaii 96822, USA
| | - J Maricic
- Department of Physics and Astronomy, University of Hawaii at Manoa, Honolulu, Hawaii 96822, USA
| | - L A Winslow
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - Y Efremenko
- Kavli Institute for the Physics and Mathematics of the Universe (WPI), The University of Tokyo Institutes for Advanced Study, The University of Tokyo, Kashiwa, Chiba 277-8583, Japan
- Department of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee 37996, USA
| | - H J Karwowski
- Triangle Universities Nuclear Laboratory, Durham, North Carolina 27708, USA; Physics Departments at Duke University, Durham, North Carolina 27708, USA; North Carolina Central University, Durham, North Carolina 27707, USA; and The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, USA
| | - D M Markoff
- Triangle Universities Nuclear Laboratory, Durham, North Carolina 27708, USA; Physics Departments at Duke University, Durham, North Carolina 27708, USA; North Carolina Central University, Durham, North Carolina 27707, USA; and The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, USA
| | - W Tornow
- Kavli Institute for the Physics and Mathematics of the Universe (WPI), The University of Tokyo Institutes for Advanced Study, The University of Tokyo, Kashiwa, Chiba 277-8583, Japan
- Triangle Universities Nuclear Laboratory, Durham, North Carolina 27708, USA; Physics Departments at Duke University, Durham, North Carolina 27708, USA; North Carolina Central University, Durham, North Carolina 27707, USA; and The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, USA
| | - T O'Donnell
- Center for Neutrino Physics, Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061, USA
| | - J A Detwiler
- Kavli Institute for the Physics and Mathematics of the Universe (WPI), The University of Tokyo Institutes for Advanced Study, The University of Tokyo, Kashiwa, Chiba 277-8583, Japan
- Center for Experimental Nuclear Physics and Astrophysics, University of Washington, Seattle, Washington 98195, USA
| | - S Enomoto
- Kavli Institute for the Physics and Mathematics of the Universe (WPI), The University of Tokyo Institutes for Advanced Study, The University of Tokyo, Kashiwa, Chiba 277-8583, Japan
- Center for Experimental Nuclear Physics and Astrophysics, University of Washington, Seattle, Washington 98195, USA
| | - M P Decowski
- Kavli Institute for the Physics and Mathematics of the Universe (WPI), The University of Tokyo Institutes for Advanced Study, The University of Tokyo, Kashiwa, Chiba 277-8583, Japan
- Nikhef and the University of Amsterdam, Science Park, Amsterdam, the Netherlands
| | - J Menéndez
- Center for Nuclear Study, The University of Tokyo, Tokyo 113-0033, Japan
| | - R Dvornický
- Department of Nuclear Physics and Biophysics, Comenius University, Mlynská dolina F1, SK-842 48 Bratislava, Slovakia
- Dzhelepov Laboratory of Nuclear Problems, JINR 141980 Dubna, Russia
| | - F Šimkovic
- Department of Nuclear Physics and Biophysics, Comenius University, Mlynská dolina F1, SK-842 48 Bratislava, Slovakia
- Bogoliubov Laboratory of Theoretical Physics, JINR 141980 Dubna, Russia
- Czech Technical University in Prague, 128-00 Prague, Czech Republic
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Matsuoka Y, Suemitsu K, Kitamura K, Katsuma Y, Ozaki S, Ota N, Izumi M. SP640ABOUT HALF OF THE MALNUTRITION PATIENTS THAT CAN’T WALK AND USE TEMPORARY VASCULAR ACCESS CATHETER DIE IN THE FIRST YEAR AFTER INITIAL VASCULAR ACCESS CREATION. - PREDICTING ONE-YEAR MORTALITY AFTER INITIAL VASCULAR ACCESS CREATION -. Nephrol Dial Transplant 2018. [DOI: 10.1093/ndt/gfy104.sp640] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Yuki Matsuoka
- Department of Internal Medicine, Division of Kidney and Dialysis, Kansai Rosai Hospital, Hyogo, Japan
| | - Kotaro Suemitsu
- Department of Internal Medicine, Division of Kidney and Dialysis, Kansai Rosai Hospital, Hyogo, Japan
| | - Kanako Kitamura
- Department of Internal Medicine, Division of Kidney and Dialysis, Kansai Rosai Hospital, Hyogo, Japan
| | - Yusuke Katsuma
- Department of Internal Medicine, Division of Kidney and Dialysis, Kansai Rosai Hospital, Hyogo, Japan
| | - Shingo Ozaki
- Department of Internal Medicine, Division of Kidney and Dialysis, Kansai Rosai Hospital, Hyogo, Japan
| | - Naomi Ota
- Department of Internal Medicine, Division of Kidney and Dialysis, Kansai Rosai Hospital, Hyogo, Japan
| | - Masaaki Izumi
- Department of Internal Medicine, Division of Kidney and Dialysis, Kansai Rosai Hospital, Hyogo, Japan
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Suemitsu K, Matsuoka Y, Kitamura K, Katsuma Y, Ozaki S, Ota N, Izumi M. SP592ARTERIOVENOUS GRAFT IN HEMODIALYSIS PATIENTS WITH IMPAIRED ACTIVITY OF DAILY LIVING. Nephrol Dial Transplant 2018. [DOI: 10.1093/ndt/gfy104.sp592] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- Kotaro Suemitsu
- Kidney and Dialysis, Kansai Rosai Hospital, Amagasaki, Japan
| | - Yuki Matsuoka
- Kidney and Dialysis, Kansai Rosai Hospital, Amagasaki, Japan
| | - Kanako Kitamura
- Kidney and Dialysis, Kansai Rosai Hospital, Amagasaki, Japan
| | - Yusuke Katsuma
- Kidney and Dialysis, Kansai Rosai Hospital, Amagasaki, Japan
| | - Shingo Ozaki
- Kidney and Dialysis, Kansai Rosai Hospital, Amagasaki, Japan
| | - Naomi Ota
- Kidney and Dialysis, Kansai Rosai Hospital, Amagasaki, Japan
| | - Masaaki Izumi
- Kidney and Dialysis, Kansai Rosai Hospital, Amagasaki, Japan
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Aharonian F, Akamatsu H, Akimoto F, Allen SW, Angelini L, Audard M, Awaki H, Axelsson M, Bamba A, Bautz MW, Blandford R, Brenneman LW, Brown GV, Bulbul E, Cackett EM, Chernyakova M, Chiao MP, Coppi PS, Costantini E, De Plaa J, De Vries CP, Den Herder JW, Done C, Dotani T, Ebisawa K, Eckart ME, Enoto T, Ezoe Y, Fabian AC, Ferrigno C, Foster AR, Fujimoto R, Fukazawa Y, Furuzawa A, Galeazzi M, Gallo LC, Gandhi P, Giustini M, Goldwurm A, Gu L, Guainazzi M, Haba Y, Hagino K, Hamaguchi K, Harrus IM, Hatsukade I, Hayashi K, Hayashi T, Hayashida K, Hiraga JS, Hornschemeier A, Hoshino A, Hughes JP, Ichinohe Y, Iizuka R, Inoue H, Inoue Y, Ishida M, Ishikawa K, Ishisaki Y, Iwai M, Kaastra J, Kallman T, Kamae T, Kataoka J, Katsuda S, Kawai N, Kelley RL, Kilbourne CA, Kitaguchi T, Kitamoto S, Kitayama T, Kohmura T, Kokubun M, Koyama K, Koyama S, Kretschmar P, Krimm HA, Kubota A, Kunieda H, Laurent P, Lee SH, Leutenegger MA, Limousin OO, Loewenstein M, Long KS, Lumb D, Madejski G, Maeda Y, Maier D, Makishima K, Markevitch M, Matsumoto H, Matsushita K, Mccammon D, Mcnamara BR, Mehdipour M, Miller ED, Miller JM, Mineshige S, Mitsuda K, Mitsuishi I, Miyazawa T, Mizuno T, Mori H, Mori K, Mukai K, Murakami H, Mushotzky RF, Nakagawa T, Nakajima H, Nakamori T, Nakashima S, Nakazawa K, Nobukawa KK, Nobukawa M, Noda H, Odaka H, Ohashi T, Ohno M, Okajima T, Oshimizu K, Ota N, Ozaki M, Paerels F, Paltani S, Petre R, Pinto C, Porter FS, Pottschmidt K, Reynolds CS, Safi-Harb S, Saito S, Sakai K, Sasaki T, Sato G, Sato K, Sato R, Sawada M, Schartel N, Serlemtsos PJ, Seta H, Shidatsu M, Simionescu A, Smith RK, Soong Y, Stawarz Ł, Sugawara Y, Sugita S, Szymkowiak A, Tajima H, Takahashi H, Takahashi T, Takeda S, Takei Y, Tamagawa T, Tamura T, Tanaka T, Tanaka Y, Tanaka YT, Tashiro MS, Tawara Y, Terada Y, Terashima Y, Tombesi F, Tomida H, Tsuboi Y, Tsujimoto M, Tsunemi H, Tsuru TG, Uchida H, Uchiyama H, Uchiyama Y, Ueda S, Ueda Y, Uno S, Urry CM, Ursino E, Watanabe S, Werner N, Wilkins DR, Williams BJ, Yamada S, Yamaguchi H, Yamaoka K, Yamasaki NY, Yamauchi M, Yamauchi S, Yaqoob T, Yatsu Y, Yonetoku D, Zhuravleva I, Zoghbi A, Terasawa T, Sekido M, Takefuji K, Kawai E, Misawa H, Tsuchiya F, Yamazaki R, Kobayashi E, Kisaka S, Aoki T. Hitomi X-ray studies of Giant Radio Pulses from the Crab pulsar. Publ Astron Soc Jpn Nihon Tenmon Gakkai 2018; 70:10.1093/pasj/psx083. [PMID: 32020916 PMCID: PMC6999749 DOI: 10.1093/pasj/psx083] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
To search for giant X-ray pulses correlated with the giant radio pulses (GRPs) from the Crab pulsar, we performed a simultaneous observation of the Crab pulsar with the X-ray satellite Hitomi in the 2 - 300 keV band and the Kashima NICT radio observatory in the 1.4 - 1.7 GHz band with a net exposure of about 2 ks on 25 March 2016, just before the loss of the Hitomi mission. The timing performance of the Hitomi instruments was confirmed to meet the timing requirement and about 1,000 and 100 GRPs were simultaneously observed at the main and inter-pulse phases, respectively, and we found no apparent correlation between the giant radio pulses and the X-ray emission in either the main or inter-pulse phases. All variations are within the 2 sigma fluctuations of the X-ray fluxes at the pulse peaks, and the 3 sigma upper limits of variations of main- or inter-pulse GRPs are 22% or 80% of the peak flux in a 0.20 phase width, respectively, in the 2 - 300 keV band. The values become 25% or 110% for main or inter-pulse GRPs, respectively, when the phase width is restricted into the 0.03 phase. Among the upper limits from the Hitomi satellite, those in the 4.5-10 keV and the 70-300 keV are obtained for the first time, and those in other bands are consistent with previous reports. Numerically, the upper limits of main- and inter-pulse GRPs in the 0.20 phase width are about (2.4 and 9.3) ×10-11 erg cm-2, respectively. No significant variability in pulse profiles implies that the GRPs originated from a local place within the magnetosphere and the number of photon-emitting particles temporally increases. However, the results do not statistically rule out variations correlated with the GRPs, because the possible X-ray enhancement may appear due to a > 0.02% brightening of the pulse-peak flux under such conditions.
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Affiliation(s)
| | - Felix Aharonian
- Dublin Institute for Advanced Studies, 31 Fitzwilliam Place, Dublin 2, Ireland
| | - Hiroki Akamatsu
- SRON Netherlands Institute for Space Research, Sorbonnelaan 2, 3584 CA Utrecht, The Netherlands
| | - Fumie Akimoto
- Institute for Space-Earth Environmental Research, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi 464-8601
| | - Steven W. Allen
- Kavli Institute for Particle Astrophysics and Cosmology, Stanford University, 452 Lomita Mall, Stanford, CA 94305, USA
- Department of Physics, Stanford University, 382 Via Pueblo Mall, Stanford, CA 94305, USA
- SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, CA 94025, USA
| | - Lorella Angelini
- NASA, Goddard Space Flight Center, 8800 Greenbelt Road, Greenbelt, MD 20771, USA
| | - Marc Audard
- Department of Astronomy, University of Geneva, ch. d’Écogia 16, CH-1290 Versoix, Switzerland
| | - Hisamitsu Awaki
- Department of Physics, Ehime University, Bunkyo-cho, Matsuyama, Ehime 790-8577
| | - Magnus Axelsson
- Department of Physics and Oskar Klein Center, Stockholm University, 106 91 Stockholm,Sweden
| | - Aya Bamba
- Department of Physics, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033
- Research Center for the Early Universe, School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033
| | - Marshall W. Bautz
- Kavli Institute for Astrophysics and Space Research, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139, USA
| | - Roger Blandford
- Kavli Institute for Particle Astrophysics and Cosmology, Stanford University, 452 Lomita Mall, Stanford, CA 94305, USA
- Department of Physics, Stanford University, 382 Via Pueblo Mall, Stanford, CA 94305, USA
- SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, CA 94025, USA
| | - Laura W. Brenneman
- Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138, USA
| | - Gregory V. Brown
- Lawrence Livermore National Laboratory, 7000 East Avenue, Livermore, CA 94550, USA
| | - Esra Bulbul
- Kavli Institute for Astrophysics and Space Research, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139, USA
| | - Edward M. Cackett
- Department of Physics and Astronomy, Wayne State University, 666 W. Hancock St, Detroit,MI 48201, USA
| | - Maria Chernyakova
- Dublin Institute for Advanced Studies, 31 Fitzwilliam Place, Dublin 2, Ireland
| | - Meng P. Chiao
- NASA, Goddard Space Flight Center, 8800 Greenbelt Road, Greenbelt, MD 20771, USA
| | - Paolo S. Coppi
- Department of Physics, Yale University, New Haven, CT 06520-8120, USA
- Department of Astronomy, Yale University, New Haven, CT 06520-8101, USA
| | - Elisa Costantini
- SRON Netherlands Institute for Space Research, Sorbonnelaan 2, 3584 CA Utrecht, The Netherlands
| | - Jelle De Plaa
- SRON Netherlands Institute for Space Research, Sorbonnelaan 2, 3584 CA Utrecht, The Netherlands
| | - Cor P. De Vries
- SRON Netherlands Institute for Space Research, Sorbonnelaan 2, 3584 CA Utrecht, The Netherlands
| | - Jan-Willem Den Herder
- SRON Netherlands Institute for Space Research, Sorbonnelaan 2, 3584 CA Utrecht, The Netherlands
| | - Chris Done
- Centre for Extragalactic Astronomy, Department of Physics, University of Durham, South Road, Durham, DH1 3LE, UK
| | - Tadayasu Dotani
- Japan Aerospace Exploration Agency, Institute of Space and Astronautical Science, 3-1-1 Yoshino-dai, Chuo-ku, Sagamihara, Kanagawa 252-5210
| | - Ken Ebisawa
- Japan Aerospace Exploration Agency, Institute of Space and Astronautical Science, 3-1-1 Yoshino-dai, Chuo-ku, Sagamihara, Kanagawa 252-5210
| | - Megan E. Eckart
- NASA, Goddard Space Flight Center, 8800 Greenbelt Road, Greenbelt, MD 20771, USA
| | - Teruaki Enoto
- Department of Astronomy, Kyoto University, Kitashirakawa-Oiwake-cho, Sakyo-ku, Kyoto 606-8502
- The Hakubi Center for Advanced Research, Kyoto University, Kyoto 606-8302
| | - Yuichiro Ezoe
- Department of Physics, Tokyo Metropolitan University, 1-1 Minami-Osawa, Hachioji, Tokyo 192-0397
| | - Andrew C. Fabian
- Institute of Astronomy, University of Cambridge, Madingley Road, Cambridge, CB3 0HA, UK
| | - Carlo Ferrigno
- Department of Astronomy, University of Geneva, ch. d’Écogia 16, CH-1290 Versoix, Switzerland
| | - Adam R. Foster
- Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138, USA
| | - Ryuichi Fujimoto
- Faculty of Mathematics and Physics, Kanazawa University, Kakuma-machi, Kanazawa, Ishikawa 920-1192
| | - Yasushi Fukazawa
- School of Science, Hiroshima University, 1-3-1 Kagamiyama, Higashi-Hiroshima 739-8526
| | | | - Massimiliano Galeazzi
- Physics Department, University of Miami, 1320 Campo Sano Dr., Coral Gables, FL 33146, USA
| | - Luigi C. Gallo
- Department of Astronomy and Physics, Saint Mary’s University, 923 Robie Street, Halifax, NS, B3H 3C3, Canada
| | - Poshak Gandhi
- Department of Physics and Astronomy, University of Southampton, Highfield, Southampton, SO17 1BJ, UK
| | - Margherita Giustini
- SRON Netherlands Institute for Space Research, Sorbonnelaan 2, 3584 CA Utrecht, The Netherlands
| | - Andrea Goldwurm
- Laboratoire APC, 10 rue Alice Domon et Léonie Duquet, 75013 Paris, France
- CEA Saclay, 91191 Gif sur Yvette, France
| | - Liyi Gu
- SRON Netherlands Institute for Space Research, Sorbonnelaan 2, 3584 CA Utrecht, The Netherlands
| | - Matteo Guainazzi
- European Space Research and Technology Center, Keplerlaan 1 2201 AZ Noordwijk, The Netherlands
| | - Yoshito Haba
- Department of Physics and Astronomy, Aichi University of Education, 1 Hirosawa,Igaya-cho, Kariya, Aichi 448-8543
| | - Kouichi Hagino
- Japan Aerospace Exploration Agency, Institute of Space and Astronautical Science, 3-1-1 Yoshino-dai, Chuo-ku, Sagamihara, Kanagawa 252-5210
| | - Kenji Hamaguchi
- NASA, Goddard Space Flight Center, 8800 Greenbelt Road, Greenbelt, MD 20771, USA
- Department of Physics, University of Maryland Baltimore County, 1000 Hilltop Circle,Baltimore, MD 21250, USA
| | - Ilana M. Harrus
- NASA, Goddard Space Flight Center, 8800 Greenbelt Road, Greenbelt, MD 20771, USA
- Department of Physics, University of Maryland Baltimore County, 1000 Hilltop Circle,Baltimore, MD 21250, USA
| | - Isamu Hatsukade
- Department of Applied Physics and Electronic Engineering, University of Miyazaki, 1-1 Gakuen Kibanadai-Nishi, Miyazaki, 889-2192
| | - Katsuhiro Hayashi
- Japan Aerospace Exploration Agency, Institute of Space and Astronautical Science, 3-1-1 Yoshino-dai, Chuo-ku, Sagamihara, Kanagawa 252-5210
| | - Takayuki Hayashi
- Department of Physics, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi 464-8602
| | - Kiyoshi Hayashida
- Department of Earth and Space Science, Osaka University, 1-1 Machikaneyama-cho,Toyonaka, Osaka 560-0043
| | - Junko S. Hiraga
- Department of Physics, Kwansei Gakuin University, 2-1 Gakuen, Sanda, Hyogo 669-1337
| | - Ann Hornschemeier
- NASA, Goddard Space Flight Center, 8800 Greenbelt Road, Greenbelt, MD 20771, USA
| | - Akio Hoshino
- Department of Physics, Rikkyo University, 3-34-1 Nishi-Ikebukuro, Toshima-ku, Tokyo 171-8501
| | - John P. Hughes
- Department of Physics and Astronomy, Rutgers University, 136 Frelinghuysen Road, Piscataway, NJ 08854, USA
| | - Yuto Ichinohe
- Department of Physics, Tokyo Metropolitan University, 1-1 Minami-Osawa, Hachioji, Tokyo 192-0397
| | - Ryo Iizuka
- Japan Aerospace Exploration Agency, Institute of Space and Astronautical Science, 3-1-1 Yoshino-dai, Chuo-ku, Sagamihara, Kanagawa 252-5210
| | - Hajime Inoue
- Meisei University, 2-1-1 Hodokubo, Hino, Tokyo 191-8506
| | - Yoshiyuki Inoue
- Japan Aerospace Exploration Agency, Institute of Space and Astronautical Science, 3-1-1 Yoshino-dai, Chuo-ku, Sagamihara, Kanagawa 252-5210
| | - Manabu Ishida
- Japan Aerospace Exploration Agency, Institute of Space and Astronautical Science, 3-1-1 Yoshino-dai, Chuo-ku, Sagamihara, Kanagawa 252-5210
| | - Kumi Ishikawa
- Japan Aerospace Exploration Agency, Institute of Space and Astronautical Science, 3-1-1 Yoshino-dai, Chuo-ku, Sagamihara, Kanagawa 252-5210
| | - Yoshitaka Ishisaki
- Department of Physics, Tokyo Metropolitan University, 1-1 Minami-Osawa, Hachioji, Tokyo 192-0397
| | - Masachika Iwai
- Japan Aerospace Exploration Agency, Institute of Space and Astronautical Science, 3-1-1 Yoshino-dai, Chuo-ku, Sagamihara, Kanagawa 252-5210
| | - Jelle Kaastra
- SRON Netherlands Institute for Space Research, Sorbonnelaan 2, 3584 CA Utrecht, The Netherlands
- Leiden Observatory, Leiden University, PO Box 9513, 2300 RA Leiden, The Netherlands
| | - Tim Kallman
- NASA, Goddard Space Flight Center, 8800 Greenbelt Road, Greenbelt, MD 20771, USA
| | - Tsuneyoshi Kamae
- Department of Physics, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033
| | - Jun Kataoka
- Research Institute for Science and Engineering, Waseda University, 3-4-1 Ohkubo, Shinjuku, Tokyo 169-8555
| | - Satoru Katsuda
- Department of Physics, Chuo University, 1-13-27 Kasuga, Bunkyo, Tokyo 112-8551
| | - Nobuyuki Kawai
- Department of Physics, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo152-8550
| | - Richard L. Kelley
- NASA, Goddard Space Flight Center, 8800 Greenbelt Road, Greenbelt, MD 20771, USA
| | | | - Takao Kitaguchi
- School of Science, Hiroshima University, 1-3-1 Kagamiyama, Higashi-Hiroshima 739-8526
| | - Shunji Kitamoto
- Department of Physics, Rikkyo University, 3-34-1 Nishi-Ikebukuro, Toshima-ku, Tokyo 171-8501
| | - Tetsu Kitayama
- Department of Physics, Toho University, 2-2-1 Miyama, Funabashi, Chiba 274-8510
| | - Takayoshi Kohmura
- Department of Physics, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba, 278-8510
| | - Motohide Kokubun
- Japan Aerospace Exploration Agency, Institute of Space and Astronautical Science, 3-1-1 Yoshino-dai, Chuo-ku, Sagamihara, Kanagawa 252-5210
| | - Katsuji Koyama
- Department of Physics, Kyoto University, Kitashirakawa-Oiwake-Cho, Sakyo, Kyoto 606-8502
| | - Shu Koyama
- Japan Aerospace Exploration Agency, Institute of Space and Astronautical Science, 3-1-1 Yoshino-dai, Chuo-ku, Sagamihara, Kanagawa 252-5210
| | - Peter Kretschmar
- European Space Astronomy Center, Camino Bajo del Castillo, s/n., 28692 Villanueva de la Cañada, Madrid, Spain
| | - Hans A. Krimm
- Universities Space Research Association, 7178 Columbia Gateway Drive, Columbia, MD 21046, USA
- National Science Foundation, 4201 Wilson Blvd, Arlington, VA 22230, USA
| | - Aya Kubota
- Department of Electronic Information Systems, Shibaura Institute of Technology, 307 Fukasaku, Minuma-ku, Saitama, Saitama 337-8570
| | - Hideyo Kunieda
- Department of Physics, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi 464-8602
| | - Philippe Laurent
- Laboratoire APC, 10 rue Alice Domon et Léonie Duquet, 75013 Paris, France
- CEA Saclay, 91191 Gif sur Yvette, France
| | - Shiu-Hang Lee
- Department of Astronomy, Kyoto University, Kitashirakawa-Oiwake-cho, Sakyo-ku, Kyoto 606-8502
| | | | | | - Michael Loewenstein
- NASA, Goddard Space Flight Center, 8800 Greenbelt Road, Greenbelt, MD 20771, USA
| | - Knox S. Long
- Space Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD 21218, USA
| | - David Lumb
- European Space Research and Technology Center, Keplerlaan 1 2201 AZ Noordwijk, The Netherlands
| | - Greg Madejski
- Kavli Institute for Particle Astrophysics and Cosmology, Stanford University, 452 Lomita Mall, Stanford, CA 94305, USA
| | - Yoshitomo Maeda
- Japan Aerospace Exploration Agency, Institute of Space and Astronautical Science, 3-1-1 Yoshino-dai, Chuo-ku, Sagamihara, Kanagawa 252-5210
| | - Daniel Maier
- Laboratoire APC, 10 rue Alice Domon et Léonie Duquet, 75013 Paris, France
- CEA Saclay, 91191 Gif sur Yvette, France
| | - Kazuo Makishima
- Institute of Physical and Chemical Research, 2-1 Hirosawa, Wako, Saitama 351-0198
| | - Maxim Markevitch
- NASA, Goddard Space Flight Center, 8800 Greenbelt Road, Greenbelt, MD 20771, USA
| | - Hironori Matsumoto
- Department of Earth and Space Science, Osaka University, 1-1 Machikaneyama-cho,Toyonaka, Osaka 560-0043
| | - Kyoko Matsushita
- Department of Physics, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku-ku, Tokyo 162-8601
| | - Dan Mccammon
- Department of Physics, University of Wisconsin, Madison, WI 53706, USA
| | - Brian R. Mcnamara
- Department of Physics and Astronomy, University of Waterloo, 200 University Avenue West, Waterloo, Ontario, N2L 3G1, Canada
| | - Missagh Mehdipour
- SRON Netherlands Institute for Space Research, Sorbonnelaan 2, 3584 CA Utrecht, The Netherlands
| | - Eric D. Miller
- Kavli Institute for Astrophysics and Space Research, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139, USA
| | - Jon M. Miller
- Department of Astronomy, University of Michigan, 1085 South University Avenue, Ann Arbor, MI 48109, USA
| | - Shin Mineshige
- Department of Astronomy, Kyoto University, Kitashirakawa-Oiwake-cho, Sakyo-ku, Kyoto 606-8502
| | - Kazuhisa Mitsuda
- Japan Aerospace Exploration Agency, Institute of Space and Astronautical Science, 3-1-1 Yoshino-dai, Chuo-ku, Sagamihara, Kanagawa 252-5210
| | - Ikuyuki Mitsuishi
- Department of Physics, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi 464-8602
| | - Takuya Miyazawa
- Okinawa Institute of Science and Technology Graduate University, 1919-1 Tancha, Onna-son Okinawa, 904-0495
| | - Tsunefumi Mizuno
- School of Science, Hiroshima University, 1-3-1 Kagamiyama, Higashi-Hiroshima 739-8526
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- NASA, Goddard Space Flight Center, 8800 Greenbelt Road, Greenbelt, MD 20771, USA
| | - Koji Mori
- Department of Applied Physics and Electronic Engineering, University of Miyazaki, 1-1 Gakuen Kibanadai-Nishi, Miyazaki, 889-2192
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- NASA, Goddard Space Flight Center, 8800 Greenbelt Road, Greenbelt, MD 20771, USA
- Department of Physics, University of Maryland Baltimore County, 1000 Hilltop Circle,Baltimore, MD 21250, USA
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- Faculty of Liberal Arts, Tohoku Gakuin University, 2-1-1 Tenjinzawa, Izumi-ku, Sendai, Miyagi 981-3193
| | | | - Takao Nakagawa
- Japan Aerospace Exploration Agency, Institute of Space and Astronautical Science, 3-1-1 Yoshino-dai, Chuo-ku, Sagamihara, Kanagawa 252-5210
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- Department of Earth and Space Science, Osaka University, 1-1 Machikaneyama-cho,Toyonaka, Osaka 560-0043
| | - Takeshi Nakamori
- Faculty of Science, Yamagata University, 1-4-12 Kojirakawa-machi, Yamagata, Yamagata 990-8560
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- Institute of Physical and Chemical Research, 2-1 Hirosawa, Wako, Saitama 351-0198
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- Department of Physics, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033
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- Department of Teacher Training and School Education, Nara University of Education, Takabatake-cho, Nara, Nara 630-8528
| | - Hirofumi Noda
- Frontier Research Institute for Interdisciplinary Sciences, Tohoku University, 6-3 Aramakiazaaoba, Aoba-ku, Sendai, Miyagi 980-8578
- Astronomical Institute, Tohoku University, 6-3 Aramakiazaaoba, Aoba-ku, Sendai, Miyagi 980-8578
| | - Hirokazu Odaka
- SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, CA 94025, USA
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- Department of Physics, Tokyo Metropolitan University, 1-1 Minami-Osawa, Hachioji, Tokyo 192-0397
| | - Masanori Ohno
- School of Science, Hiroshima University, 1-3-1 Kagamiyama, Higashi-Hiroshima 739-8526
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- Department of Physics, Saitama University, 255 Shimo-Okubo, Sakura-ku, Saitama, 338-8570
| | - Naomi Ota
- Department of Physics, Nara Women’s University, Kitauoyanishi-machi, Nara, Nara 630-8506
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- Astrophysics Laboratory, Columbia University, 550 West 120th Street, New York, NY 10027, USA
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- Institute of Astronomy, University of Cambridge, Madingley Road, Cambridge, CB3 0HA, UK
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- Department of Physics, University of Maryland Baltimore County, 1000 Hilltop Circle,Baltimore, MD 21250, USA
| | | | - Samar Safi-Harb
- Department of Physics and Astronomy, University of Manitoba, Winnipeg, MB R3T 2N2, Canada
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| | - Łukasz Stawarz
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| | - Hiroyasu Tajima
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- Japan Aerospace Exploration Agency, Institute of Space and Astronautical Science, 3-1-1 Yoshino-dai, Chuo-ku, Sagamihara, Kanagawa 252-5210
| | - Shiníchiro Takeda
- Okinawa Institute of Science and Technology Graduate University, 1919-1 Tancha, Onna-son Okinawa, 904-0495
| | - Yoh Takei
- Japan Aerospace Exploration Agency, Institute of Space and Astronautical Science, 3-1-1 Yoshino-dai, Chuo-ku, Sagamihara, Kanagawa 252-5210
| | - Toru Tamagawa
- Institute of Physical and Chemical Research, 2-1 Hirosawa, Wako, Saitama 351-0198
| | - Takayuki Tamura
- Japan Aerospace Exploration Agency, Institute of Space and Astronautical Science, 3-1-1 Yoshino-dai, Chuo-ku, Sagamihara, Kanagawa 252-5210
| | - Takaaki Tanaka
- Department of Physics, Kyoto University, Kitashirakawa-Oiwake-Cho, Sakyo, Kyoto 606-8502
| | - Yasuo Tanaka
- Max Planck Institute for extraterrestrial Physics, Giessenbachstrasse 1, 85748 Garching , Germany
| | - Yasuyuki T. Tanaka
- School of Science, Hiroshima University, 1-3-1 Kagamiyama, Higashi-Hiroshima 739-8526
| | - Makoto S. Tashiro
- Department of Physics, Saitama University, 255 Shimo-Okubo, Sakura-ku, Saitama, 338-8570
| | - Yuzuru Tawara
- Department of Physics, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi 464-8602
| | - Yukikatsu Terada
- Department of Physics, Saitama University, 255 Shimo-Okubo, Sakura-ku, Saitama, 338-8570
| | - Yuichi Terashima
- Department of Physics, Ehime University, Bunkyo-cho, Matsuyama, Ehime 790-8577
| | - Francesco Tombesi
- NASA, Goddard Space Flight Center, 8800 Greenbelt Road, Greenbelt, MD 20771, USA
- Department of Astronomy, University of Maryland, College Park, MD 20742, USA
| | - Hiroshi Tomida
- Japan Aerospace Exploration Agency, Institute of Space and Astronautical Science, 3-1-1 Yoshino-dai, Chuo-ku, Sagamihara, Kanagawa 252-5210
| | - Yohko Tsuboi
- Department of Physics, Chuo University, 1-13-27 Kasuga, Bunkyo, Tokyo 112-8551
| | - Masahiro Tsujimoto
- Japan Aerospace Exploration Agency, Institute of Space and Astronautical Science, 3-1-1 Yoshino-dai, Chuo-ku, Sagamihara, Kanagawa 252-5210
| | - Hiroshi Tsunemi
- Department of Earth and Space Science, Osaka University, 1-1 Machikaneyama-cho,Toyonaka, Osaka 560-0043
| | - Takeshi Go Tsuru
- Department of Physics, Kyoto University, Kitashirakawa-Oiwake-Cho, Sakyo, Kyoto 606-8502
| | - Hiroyuki Uchida
- Department of Physics, Kyoto University, Kitashirakawa-Oiwake-Cho, Sakyo, Kyoto 606-8502
| | - Hideki Uchiyama
- Faculty of Education, Shizuoka University, 836 Ohya, Suruga-ku, Shizuoka 422-8529
| | - Yasunobu Uchiyama
- Department of Physics, Rikkyo University, 3-34-1 Nishi-Ikebukuro, Toshima-ku, Tokyo 171-8501
| | - Shutaro Ueda
- Japan Aerospace Exploration Agency, Institute of Space and Astronautical Science, 3-1-1 Yoshino-dai, Chuo-ku, Sagamihara, Kanagawa 252-5210
| | - Yoshihiro Ueda
- Department of Astronomy, Kyoto University, Kitashirakawa-Oiwake-cho, Sakyo-ku, Kyoto 606-8502
| | - Shiníchiro Uno
- Faculty of Health Sciences, Nihon Fukushi University , 26-2 Higashi Haemi-cho, Handa,Aichi 475-0012
| | - C. Megan Urry
- Department of Physics, Yale University, New Haven, CT 06520-8120, USA
| | - Eugenio Ursino
- Physics Department, University of Miami, 1320 Campo Sano Dr., Coral Gables, FL 33146, USA
| | - Shin Watanabe
- Japan Aerospace Exploration Agency, Institute of Space and Astronautical Science, 3-1-1 Yoshino-dai, Chuo-ku, Sagamihara, Kanagawa 252-5210
| | - Norbert Werner
- School of Science, Hiroshima University, 1-3-1 Kagamiyama, Higashi-Hiroshima 739-8526
- MTA-Eötvös University Lendület Hot Universe Research Group, Pázmány Péter sétány 1/A, Budapest, 1117, Hungary
- Department of Theoretical Physics and Astrophysics, Faculty of Science, Masaryk University, Kotlářská 2, Brno, 611 37, Czech Republic
| | - Dan R. Wilkins
- Kavli Institute for Particle Astrophysics and Cosmology, Stanford University, 452 Lomita Mall, Stanford, CA 94305, USA
| | - Brian J. Williams
- Space Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD 21218, USA
| | - Shinya Yamada
- Department of Physics, Tokyo Metropolitan University, 1-1 Minami-Osawa, Hachioji, Tokyo 192-0397
| | - Hiroya Yamaguchi
- NASA, Goddard Space Flight Center, 8800 Greenbelt Road, Greenbelt, MD 20771, USA
| | - Kazutaka Yamaoka
- Institute for Space-Earth Environmental Research, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi 464-8601
| | - Noriko Y. Yamasaki
- Japan Aerospace Exploration Agency, Institute of Space and Astronautical Science, 3-1-1 Yoshino-dai, Chuo-ku, Sagamihara, Kanagawa 252-5210
| | - Makoto Yamauchi
- Department of Applied Physics and Electronic Engineering, University of Miyazaki, 1-1 Gakuen Kibanadai-Nishi, Miyazaki, 889-2192
| | - Shigeo Yamauchi
- Department of Physics, Nara Women’s University, Kitauoyanishi-machi, Nara, Nara 630-8506
| | - Tahir Yaqoob
- Department of Physics, University of Maryland Baltimore County, 1000 Hilltop Circle,Baltimore, MD 21250, USA
| | - Yoichi Yatsu
- Department of Physics, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo152-8550
| | - Daisuke Yonetoku
- Faculty of Mathematics and Physics, Kanazawa University, Kakuma-machi, Kanazawa, Ishikawa 920-1192
| | - Irina Zhuravleva
- Kavli Institute for Particle Astrophysics and Cosmology, Stanford University, 452 Lomita Mall, Stanford, CA 94305, USA
- Department of Physics, Stanford University, 382 Via Pueblo Mall, Stanford, CA 94305, USA
| | - Abderahmen Zoghbi
- Department of Astronomy, University of Michigan, 1085 South University Avenue, Ann Arbor, MI 48109, USA
| | - Toshio Terasawa
- Institute of Physical and Chemical Research, 2-1 Hirosawa, Wako, Saitama 351-0198
| | - Mamoru Sekido
- Kashima Space Technology Center, National Institute of Information and Communications Technology, Kashima, Ibaraki 314-8501
| | - Kazuhiro Takefuji
- Kashima Space Technology Center, National Institute of Information and Communications Technology, Kashima, Ibaraki 314-8501
| | - Eiji Kawai
- Kashima Space Technology Center, National Institute of Information and Communications Technology, Kashima, Ibaraki 314-8501
| | - Hiroaki Misawa
- Planetary Plasma and Atmospheric Research Center, Tohoku University, Sendai, Miyagi 980-8578
| | - Fuminori Tsuchiya
- Planetary Plasma and Atmospheric Research Center, Tohoku University, Sendai, Miyagi 980-8578
| | - Ryo Yamazaki
- Department of Physics and Mathematics, Aoyama Gakuin University, 5-10-1 Fuchinobe, Chuo-ku, Sagamihara, Kanagawa 252-5258
| | - Eiji Kobayashi
- Department of Physics and Mathematics, Aoyama Gakuin University, 5-10-1 Fuchinobe, Chuo-ku, Sagamihara, Kanagawa 252-5258
| | - Shota Kisaka
- Department of Physics and Mathematics, Aoyama Gakuin University, 5-10-1 Fuchinobe, Chuo-ku, Sagamihara, Kanagawa 252-5258
| | - Takahiro Aoki
- The Research Institute for Time Studies, Yamaguchi University, 1677-1 Yoshida, Yamaguchi 753-8511
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Bates JM, Flanagan K, Mo L, Ota N, Ding J, Ho S, Liu S, Roose-Girma M, Warming S, Diehl L. Dendritic cell CD83 homotypic interactions regulate inflammation and promote mucosal homeostasis. Mucosal Immunol 2015; 8:414-28. [PMID: 25204675 PMCID: PMC4326976 DOI: 10.1038/mi.2014.79] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2013] [Accepted: 07/26/2014] [Indexed: 02/04/2023]
Abstract
Dendritic cells (DCs) form an extensive network in the intestinal lamina propria, which orchestrates the mucosal immune response. Alterations in DC function can predispose to inflammatory bowel disease, although by unknown mechanisms. We show that CD83, a highly regulated DC cell surface protein, modulates the immune response to prevent colitis. Mice with a conditional knockout of CD83 in DCs develop exacerbated colitis following dextran sodium sulfate challenge, whereas mucosal overexpression of CD83 inhibits DC inflammatory response and protects against colitis. These CD83 perturbations can be modeled in vitro where we show that CD83 homotypic interaction occurs via cell-cell contact and inhibits pro-inflammatory responses. CD83 knockdown or cytoplasmic truncation abrogates the effects of homotypic binding. We demonstrate that CD83 homotypic interaction regulates DC activation via the mitogen-activated protein kinase pathway by inhibiting p38α phosphorylation. Our findings indicate that CD83 homotypic interactions regulate DC activation and promote mucosal homeostasis.
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Affiliation(s)
- J M Bates
- Department of Pathology, Genetech, South San Francisco, California, USA
| | - K Flanagan
- Department of Pathology, Genetech, South San Francisco, California, USA
| | - L Mo
- Department of Pathology, Genetech, South San Francisco, California, USA
| | - N Ota
- Department of Immunology, Genetech, South San Francisco, California, USA
| | - J Ding
- Department of Immunology, Genetech, South San Francisco, California, USA
| | - S Ho
- Department of Pathology, Genetech, South San Francisco, California, USA
| | - S Liu
- Department of Pathology, Genetech, South San Francisco, California, USA
| | - M Roose-Girma
- Department of Molecular Biology, Genentech, South San Francisco, California, USA
| | - S Warming
- Department of Molecular Biology, Genentech, South San Francisco, California, USA
| | - L Diehl
- Department of Pathology, Genetech, South San Francisco, California, USA
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Yu X, Pappu R, Ramirez-Carrozzi V, Ota N, Caplazi P, Zhang J, Yan D, Xu M, Lee WP, Grogan JL. TNF superfamily member TL1A elicits type 2 innate lymphoid cells at mucosal barriers. Mucosal Immunol 2014; 7:730-40. [PMID: 24220298 PMCID: PMC3998636 DOI: 10.1038/mi.2013.92] [Citation(s) in RCA: 125] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2013] [Accepted: 10/07/2013] [Indexed: 02/04/2023]
Abstract
Immune responses at mucosal barriers are regulated by innate type 2 lymphoid cells (ILC2s) that elaborate effector cytokines interleukins 5 and 13 (IL5 and IL13). IL25 and IL33 are key cytokines that support ILC2s; however, mice deficient in these pathways retain some functional ILC2s. Analysis of human and murine cells revealed that ILC2s highly express tumor necrosis factor (TNF)-receptor superfamily member DR3 (TNFRSF25). Engagement of DR3 with cognate ligand TL1A promoted ILC2 expansion, survival, and function. Exogenous protein or genetic overexpression of TL1A activated ILC2s independent of IL25 or IL33. Dr3(-/-) mice failed to control gut helminthic infections, and failed to mount ILC2 responses in the lung after nasal challenge with papain. Our data demonstrate a key role for TL1A in promoting ILC2s at mucosal barriers.
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Affiliation(s)
- X Yu
- Department of Immunology, Genentech, South San Francisco, California, USA
| | - R Pappu
- Department of Immunology, Genentech, South San Francisco, California, USA
| | - V Ramirez-Carrozzi
- Department of Immunology, Genentech, South San Francisco, California, USA
| | - N Ota
- Department of Immunology, Genentech, South San Francisco, California, USA
| | - P Caplazi
- Department of Pathology, Genentech, South San Francisco, California, USA
| | - J Zhang
- Department of Translational Immunology, Genentech, South San Francisco, California, USA
| | - D Yan
- Department of Translational Immunology, Genentech, South San Francisco, California, USA
| | - M Xu
- Department of Translational Immunology, Genentech, South San Francisco, California, USA
| | - W P Lee
- Department of Translational Immunology, Genentech, South San Francisco, California, USA
| | - J L Grogan
- Department of Immunology, Genentech, South San Francisco, California, USA,
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Sugimoto A, Ota N, Miyakoshi C, Murata M, Ide Y, Tachi M, Ito H, Ogawa H, Sakamoto K. Mid- to long-term aortic valve-related outcomes after conventional repair for patients with interrupted aortic arch or coarctation of the aorta, combined with ventricular septal defect: the impact of bicuspid aortic valve. Eur J Cardiothorac Surg 2014; 46:952-60; discussion 960. [DOI: 10.1093/ejcts/ezu078] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Abe S, Takahashi Y, Fujita N, Ikeda M, Ota N, Kajita Y, Yamamoto S, Naganawa S, Kato K. Estimation of regional cerebral blood flow using N-isopropyl-p-123I iodoamphetamine acquisition data from the lungs and brain. Nuklearmedizin 2014; 53:221-6. [DOI: 10.3413/nukmed-0640-14-01] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2014] [Accepted: 07/06/2014] [Indexed: 11/20/2022]
Abstract
Summary
Aim: Previously, we devised a method for estimating 123I labeled N-isopropyl-p-iodo- amphetamine (123I IMP) arterial blood activity at 10 minutes after intravenous injection of 123I IMP (Ca10) without any blood sampling using 123I IMP autoradiography (ARG) acquisition data, and verified its usefulness for quantification of regional cerebral blood flow (rCBF). In this study, we attempted to develop an improved noninvasive method for estimating rCBF. Patients, methods:
123I IMP studies with 23 patients and 15O-H2O positron emission tomography (PET) ARG studies with 20 patients were evaluated. Multiple regression analysis was used to estimate an integral of the arterial blood counts during the time after injection of 123I (JCa) using parameters from the time series of the lung counts and brain counts as the explanatory variables and the fraction [brain single-photon emission computed tomography (SPECT) average count / the mean of rCBFs (mean CBF) measured by 15O-H2O PET ARG method] as the objective variable. Results: The regression equation was as follows: Estimated JCa = (7.09x10-3 · Cb12) - (1.57x10-4 · CbpreSPECT) + (9.48x10-5 · CbpostSPECT) + (1.35x10-4· L15) - (6.95x10-4· L33) + (7.61x10-4· L81) - (0.417), where Cb12: brain count at 12 minutes, Cbpre-SPECT: brain count before SPECT, Cbpost-SPECT: brain count after SPECT, L15, L33, and L81: lung count at 15, 33, and 81 seconds, respectively. The mean CBF values (ml/min/100g) calculated using the estimated JCa values more closely correlated with those measured by 15O-H2O PET ARG method (r = 0.833, p < 0.01) than those obtained by our previous method (r = 0.590, p < 0.01). Conclusion: The rCBFs obtained by this method approximated more accurately to the values measured by 15O-H2O PET ARG method than those obtained by our previous method.
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Ito H, Ota N, Murata M, Tosaka Y, Ide Y, Tachi M, Sugimoto A, Ogawa H, Sakamoto K. 048 * MID-TERM OUTCOME OF NEONATAL TRICUSPID VALVE PLASTY FOR PULMONARY ATRESIA AND INTACT VENTRICULAR SEPTUM: TOWARDS BIVENTRICULAR REPAIR. Interact Cardiovasc Thorac Surg 2013. [DOI: 10.1093/icvts/ivt372.48] [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: 11/12/2022] Open
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Sugimoto A, Ota N, Murata M, Ide Y, Tachi M, Ito H, Ogawa H, Sakamoto K. 173 * IMPACT OF BICUSPID AORTIC VALVE ON POSTOPERATIVE VALVE-RELATED MORBIDITY AFTER CONVENTIONAL REPAIR FOR INTERRUPTED AORTIC ARCH/COARCTATION OF AORTA WITH VENTRICULAR SEPTAL DEFECT. Interact Cardiovasc Thorac Surg 2013. [DOI: 10.1093/icvts/ivt372.173] [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: 11/15/2022] Open
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Yokoyama N, Sivakumar T, Ota N, Igarashi I, Nakamura Y, Yamashina H, Matsui S, Fukumoto N, Hata H, Kondo S, Oshiro M, Zakimi S, Kuroda Y, Kojima N, Matsumoto K, Inokuma H. Genetic diversity of Theileria orientalis in tick vectors detected in Hokkaido and Okinawa, Japan. Infect Genet Evol 2012; 12:1669-75. [PMID: 22824416 DOI: 10.1016/j.meegid.2012.07.007] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/23/2012] [Revised: 07/03/2012] [Accepted: 07/05/2012] [Indexed: 11/27/2022]
Abstract
In the present study, we investigated the possible tick vectors that can transmit Theileria orientalis in eastern Hokkaido, Japan. Questing ticks collected from three different districts, Taiki, Otofuke, and Shin-Hidaka, of Hokkaido included Ixodes persulcatus, Haemaphysalis megaspinosa, Haemaphysalis douglasi, and Ixodes ovatus, while all the ticks collected from Yonaguni island of Okinawa were identified as Haemaphysalis longicornis. When the ticks were screened by polymerase chain reaction (PCR) for T. orientalis, the parasite was commonly detected among all tick species. Genotype-specific PCR assays revealed that all tick species in Hokkaido were predominantly detected with type 2, while ticks collected from Okinawa (H. longicornis) were predominantly detected with type 1. Consistent with the genetic diversity of T. orientalis in ticks, genotyping PCR assays from cattle grazed in the same Hokkaido sampling locations identified type 2 as the most prevalent genotype. This study provides the first identification of I. persulcatus, H. megaspinosa, H. douglasi, and I. ovatus as possible tick vectors of T. orientalis, and finds that the variety of vectors apparently capable of transmitting T. orientalis is wider in Japan than expected. The authors suggest that tick control strategies should be modified in Hokkaido based on the seasonal activities of ticks identified in the present study.
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Affiliation(s)
- Naoaki Yokoyama
- National Research Center for Protozoan Diseases, Obihiro University of Agriculture and Veterinary Medicine, Inada-cho, Obihiro, Hokkaido 080-8555, Japan.
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Agnes H, Kalman P, Jozsef A, Henrik B, Mucsi I, Kamata K, Sano T, Naito S, Okamoto T, Okina C, Kamata M, Murano J, Kobayashi K, Uchida M, Aoyama T, Takeuchi Y, Nagaba Y, Sakamoto H, Torino C, Torino C, Panuccio V, Clementi A, Garozzo M, Bonanno G, Boito R, Natale G, Cicchetti T, Chippari A, Logozzo D, Alati G, Cassani S, Sellaro A, D'arrigo G, Tripepi G, Roberta A, Postorino M, Mallamaci F, Zoccali C, Buonanno E, Brancaccio S, Fimiani V, Napolitano P, Spadola R, Morrone L, DI Iorio B, Russo D, Betriu A, Martinez-Alonso M, Vidal T, Valdivielso J, Fernandez E, Bernadette F, Jean-Baptiste B, Frimat L, Madala ND, Thusi GP, Sibisi N, Mazibuko BG, Assounga AGH, Tsai NC, Wang HH, Chen YC, Hung CC, Hwang SJ, Chen HC, Branco P, Adragao T, Birne R, Martins AR, Vizinho R, Gaspar A, Grilo MJ, Barata JD, Bonhorst D, Adragao P, Kim JS, Yang JW, Kim MK, Choi SO, Han BG, Nathalie N, Sunny E, Glorieux G, Daniela B, Fellype B, Sophie L, Horst D L, Ziad M, Raymond V, Yanai M, Okada K, Takeuchi K, Nitta K, Takahashi S, Morena M, Jaussent I, Halkovich A, Dupuy AM, Bargnoux AS, Chenine L, Leray-Moragues H, Klouche K, Vernhet H, Canaud B, Cristol JP, Shutov A, Serov V, Kuznetsova J, Menzorov M, Serova D, Petrescu L, Zugravu A, Capusa C, Stancu S, Cinca S, Anghel C, Timofte D, Medrihan L, Ionescu D, Mircescu G, Hsu TW, Kuo KL, Hung SC, Tarng DC, Lee S, Kim I, Lee D, Rhee H, Song S, Seong E, Kwak I, Holzmann M, Gardell C, Jeppsson A, Sartipy U, Solak Y, Yilmaz MI, Caglar K, Saglam M, Yaman H, Sonmez A, Unal HU, Gok M, Gaipov A, Kayrak M, Eyileten T, Turk S, Vural A, DI Lullo L, Floccari F, Rivera R, Granata A, D'amelio A, Logias F, Otranto G, Malaguti M, Santoboni A, Fiorini F, Connor T, Oygar D, Nitsch D, Gale D, Steenkamp R, Neild GH, Maxwell P, Louise Hogsbro I, Redal-Baigorri B, Sautenet B, Halimi JM, Caille A, Goupille P, Giraudeau B, Solak Y, Yilmaz MI, Caglar K, Saglam M, Yaman H, Unal HU, Gok M, Oguz Y, Gaipov A, Yenicesu M, Cetinkaya H, Eyileten T, Turk S, Vural A, Chen YC, Wang HH, Tsai NC, Hung CC, Hwang SJ, Chen HC, Ishimoto Y, Ohki T, Sugahara M, Kanemitsu T, Kobayashi M, Uchida L, Kotera N, Tanaka S, Sugimoto T, Mise N, Miyazaki N, Matsumoto J, Murata I, Yoshida G, Morishita K, Ushikoshi H, Nishigaki K, Ogura S, Minatoguchi S, Harvey R, Harvey R, Ala A, Banerjee D, Farmer C, Irving J, Hobbs H, Wheeler T, Klebe B, Stevens P, Selim G, Selim G, Stojceva-Taneva O, Tozija L, Stojcev N, Gelev S, Dzekova-Vidimliski P, Pavleska S, Sikole A, Qureshi AR, Evans M, Stendahl M, Prutz KG, Elinder CG, Tamagaki K, Kado H, Nakata M, Kitani T, Ota N, Ishida R, Matsuoka E, Shiotsu Y, Ishida M, Mori Y, Christelle M, Rognant N, Evelyne D, Sophie F, Laurent J, Maurice L, Silverwood R, Pierce M, Kuh D, Savage C, Ferro C, Nitsch D, Moniek DG, De Goeij M, Nynke H, Gurbey O, Joris R, Friedo D, Clayton P, Grace B, Cass A, Mcdonald S, Lorenzo V, Martin Conde M, Betriu A, Dusso A, Valdivielso JM, Fernandez E, Roggeri DP, Cannella G, Cozzolino M, Mazzaferro S, Messa P, Brancaccio D, De Souza Faria R, Fernandes N, Lovisi J, Moura Marta M, Reboredo M, Do Vale Pinheiro B, Bastos M, Hundt F, Hundt F, Pabst S, Hammerstingl C, Gerhardt T, Skowasch D, Woitas R, Lopes AA, Silva LF, Matos CM, Martins MS, Silva FA, Lopes GB, Pizzarelli F, Dattolo P, Tripepi G, Michelassi S, Rossi C, Bandinelli S, Mieth M, Mass R, Ferrucci L, Zoccali C, Parisi S, Arduino S, Attini R, Fassio F, Biolcati M, Pagano A, Bossotti C, Ferraresi M, Gaglioti P, Todros T, Piccoli GB, Salgado TM, Arguello B, Benrimoj SI, Fernandez-Llimos F, Bailey P, Tomson C, Ben-Shlomo Y, Santoro A, Rucci P, Mandreoli M, Caruso F, Corradini M, Flachi M, Gibertoni D, Rigotti A, Russo G, Fantini M, Mahapatra HS, Choudhury S, Buxi G, Sharma N, Gupta Y, Sekhar V, Mahapatra HS, Choudhury S, Buxi G, Sharma N, Gupta Y, Sekhar V, Yanagisawa N, Ando M, Ajisawa A, Tsuchiya K, Nitta K, Janusz O, Mikolaj M, Jacek M, Boleslaw R, Prakash S, Coffin R, Schold J, Einstadter D, Stark S, Rodgers D, Howard M, Sehgal A, Stevens P, Irving J, Wheeler T, Klebe B, Farmer C, Palmer S, Tong A, Manns B, Craig J, Ruospo M, Gargano L, Strippoli G, Ruospo M, Palmer S, Vecchio M, Gargano L, Petruzzi M, De Benedictis M, Pellegrini F, Strippoli G, Ohno Y, Ishimura E, Naganuma T, Kondo K, Fukushima W, Mui K, Inaba M, Hirota Y, Sun X, Sun X, Jiang S, Gu H, Chen Y, XI C, Qiao X, Chen X, Daher E, Junior GS, Jacinto CN, Pimentel RS, Aguiar GBR, Lima CB, Borges RC, Mota LPC, Melo JVL, Melo SA, Canamary VT, Alves M, Araujo SMHA, Chen YC, Hung CC, Huang YK, Tsai NC, Wang HH, Hung CC, Hwang SJ, Chen HC, Rogacev K, Cremers B, Zawada A, Seiler S, Binder N, Ege P, Grosse-Dunker G, Heisel I, Hornof F, Jeken J, Rebling N, Ulrich C, Scheller B, Bohm M, Fliser D, Heine GH, Robinson B, Wang M, Bieber B, Fluck R, Kerr PG, Wikstrom B, Krishnan M, Nissenson A, Pisoni RL, Mykleset S, Osthus TB, Waldum B, Os I, Buttigieg J, Buttigieg J, Cassar A, Farrugia Agius J, Redal-Baigorri B, Hara M, Ando M, Tsuchiya K, Nitta K, Yamato M, Yasuda K, Sasaki K. Clinical Nephrology - Epidemiology II. Nephrol Dial Transplant 2012. [DOI: 10.1093/ndt/gfs236] [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: 11/13/2022] Open
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Sugimoto A, Fujimoto Y, Ota N, Murata M, Tosaka Y, Ide Y, Tachi M, Ito H, Sakamoto K. [Intraoperative direct angiography for the diminutive central pulmonary artery in a patient with major aortopulmonary collateral arteries]. Kyobu Geka 2012; 65:369-373. [PMID: 22569493] [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: 05/31/2023]
Abstract
It can be difficult to judge the degree of arborization of diminutive central pulmonary arteries (cPA) in patients with major aortopulmonary collateral arteries (MAPCA). Even through preoperative cardiac catheterization may not give adequate information. We introduce intra-operative direct angiography of diminutive cPA for patients with MAPCA. This would be one of the good options to judge the degree of arborization of the diminutive cPA, and to decide an initial surgical treatment. In this case, unifocalization of MAPCA without patch augmentation of pulmonary arteries, and an aortopulmonary shunt were performed at the 1st procedure. As enough growth of the cPA was obtained, this patient did not require additional patch augmentation of the pulmonary artery at the time of complete repair.
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Affiliation(s)
- A Sugimoto
- Department of Cardiovascular Surgery, Mt.Fuji Shizuoka Children's Hospital, Shizuoka, Japan
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20
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Cox JH, Kljavin NM, Ota N, Leonard J, Roose-Girma M, Diehl L, Ouyang W, Ghilardi N. Opposing consequences of IL-23 signaling mediated by innate and adaptive cells in chemically induced colitis in mice. Mucosal Immunol 2012; 5:99-109. [PMID: 22089030 DOI: 10.1038/mi.2011.54] [Citation(s) in RCA: 86] [Impact Index Per Article: 7.2] [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: 02/04/2023]
Abstract
The interleukin-23 (IL-23) pathway has emerged as a promising therapeutic target for inflammatory bowel disease. Although the pathogenic role of IL-23 receptor (IL-23R) on T lymphocytes is well established, its function on innate immune cells has not been thoroughly examined. Here we investigate the consequence of IL-23R deletion in dextran sulfate sodium (DSS)-induced colitis. In IL23R(-/-) and IL23p19(-/-) mice, we observed decreased weight loss and reduced leukocyte infiltrate following DSS exposure. Surprisingly, when the IL-23R(-/-) allele was crossed into Rag2(-/-) mice, we observed exacerbated disease, increased epithelial damage, reduced pSTAT3 in the epithelium, and delayed recovery of IL23R(-/-)Rag2(-/-) mice. This phenotype was rescued with exogenous IL22-Fc, and epithelial pSTAT3 was restored. Depletion of Thy1(+) innate lymphoid cells eliminated the majority of IL-22 production in the colon lamina propria of DSS-treated Rag2(-/-) mice, suggesting that these are the major IL-23 responsive innate cells in this context. In summary, we provide evidence for opposing consequences of IL-23R on innate and adaptive lymphoid cells in murine colitis.
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Affiliation(s)
- J H Cox
- Department of Molecular Biology, Genentech, South San Francisco, California, USA
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21
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Shindo K, Kawashima K, Ushiba J, Ota N, Ito M, Ota T, Kimura A, Liu M. Effects of neurofeedback training with an electroencephalogram-based Brain–Computer Interface for hand paralysis in patients with chronic stroke: A preliminary case series study. J Rehabil Med 2011; 43:951-7. [DOI: 10.2340/16501977-0859] [Citation(s) in RCA: 173] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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22
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Ota N, Mizuno D, Kuboki N, Igarashi I, Nakamura Y, Yamashina H, Hanzaike T, Fujii K, Onoe S, Hata H, Kondo S, Matsui S, Koga M, Matsumoto K, Inokuma H, Yokoyama N. Epidemiological survey of Theileria orientalis infection in grazing cattle in the eastern part of Hokkaido, Japan. J Vet Med Sci 2009; 71:937-44. [PMID: 19652482 DOI: 10.1292/jvms.71.937] [Citation(s) in RCA: 125] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Theileria orientalis is one of the benign species of Theileria that is widely distributed in Japan and is sometimes responsible for serious economic losses in the livestock industry. In the present study, we surveyed the current status of T. orientalis infection in grazing cattle in the eastern areas of Hokkaido (Taiki, Otofuke, Shintoku, and Shin-Hidaka districts) using molecular methods, as well as traditional methods, of diagnosis. The genes encoding the major piroplasm surface protein (MPSP) and p23 of T. orientalis were identified using highly detectable polymerase chain reaction (PCR). Results of the MPSP-PCR assay indicated that grazing cattle in these districts, after about 1.5 months pasturage, showed high rates of infection, ranging from 10.0-64.8%. Although the main MPSP and p23 genotypes detected were the Ikeda- or Chitose-types, an MPSP gene closely relating to that found in Okinawa prefecture, and a p23 gene closely relating to the Australian (Warwick) Buffeli-type gene, were found in the cattle in Shintoku and Shin-Hidaka districts. The present survey indicated that there were at least five types of T. orientalis classified by their MPSP genes in Hokkaido, Japan, and that T. orientalis infection rates are still high in this region.
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Affiliation(s)
- Naomi Ota
- Obihiro University of Agriculture and Veterinary Medicine, Hokkaido, Japan
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23
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Yamazoe T, Inenaga C, Yamazaki T, Ota N, Nakatogawa H, Yamamoto T, Tanaka T. Comparison of motor evoked potential monitoring and direct motor function observation in awake craniotomy in resection of glioma localized in the right supplementary motor area. Neuroimage 2009. [DOI: 10.1016/s1053-8119(09)71861-0] [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: 10/20/2022] Open
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24
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Kyoya T, Nakajo Y, Sasaki K, Ota N, Takizawa T, Kyono K. Meiotic spindle and zona pellucida characteristics as predictors of embryonic development using polscope imaging. Fertil Steril 2008. [DOI: 10.1016/j.fertnstert.2008.07.1411] [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: 10/21/2022]
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25
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Iseki H, Takabatake N, Ota N, Ishigame T, Yokoyama N, Igarashi I. Babesia: The protective effects of killed Propionibacterium acnes on the infections of two rodent Babesia parasites in mice. Exp Parasitol 2008; 118:543-8. [DOI: 10.1016/j.exppara.2007.11.006] [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] [Received: 06/11/2007] [Revised: 11/09/2007] [Accepted: 11/12/2007] [Indexed: 01/31/2023]
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26
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Hirakawa S, Ota N, Shimaoka M, Man W, Yamamoto K. Relationship between the average projected area of corneocytes and the onset age of atopic dermatitis in childhood. Int J Cosmet Sci 2006. [DOI: 10.1111/j.1467-2494.2006.00335_2.x] [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: 11/30/2022]
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27
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Abstract
Coenzyme Q10 (CoQ(10)) levels in human saliva were measured by HPLC with a highly sensitive electrochemical detector (ECD) and a special concentration column. This HPLC system showed satisfactory analytical results within the standard range of 0.78-50 ng/ml. We also found a significant correlation between CoQ(10) levels in plasma and in saliva from parotid glands, while this correlation was lacking between plasma CoQ10 and CoQ10 in whole saliva. Unlike in plasma, there are some fluctuations of saliva CoQ(10) levels throughout the day. A good correlation was obtained by collecting parotid gland saliva at times between meals. The mean saliva CoQ(10) level for 55 healthy volunteers was 17.0 ng/ml (S.D. 6.8 ng/ml); approximately one fiftieth of that in plasma. Regarding the influence of oral supplementation, CoQ(10) was analyzed in plasma and parotid gland saliva from 20 healthy volunteers supplemented daily with 100 mg of CoQ(10) for the first week and 200 mg for the second. The plasma CoQ(10) levels of all volunteers increased to different extents in accordance with the CoQ(10) daily intake and the corresponding change in saliva showed almost the same trend.
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Affiliation(s)
- K Sekine
- Research and Development Department, Mitsubishi Kagaku Bio-Clinical Laboratories, Inc., Tokyo, Japan
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28
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Mogi M, Otogoto J, Ota N, Togari A. Differential expression of RANKL and osteoprotegerin in gingival crevicular fluid of patients with periodontitis. J Dent Res 2004; 83:166-9. [PMID: 14742657 DOI: 10.1177/154405910408300216] [Citation(s) in RCA: 173] [Impact Index Per Article: 8.7] [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: 12/21/2022] Open
Abstract
UNLABELLED The receptor activator for NF-kappaB ligand (RANKL) plays an important role in osteoclast formation. A recent study with animal models suggests the involvement of RANKL in the pathogenesis of this periodontal disease. However, no one has examined the level of RANKL in the body fluid of human subjects. This communication reports on the in vivo concentrations of RANKL and the RANKL decoy receptor osteoprotegerin (OPG) in the gingival crevicular fluid (GCF) of periodontal subjects with severe, moderate, and mild forms of the disease. An increased concentration of RANKL and a decreased concentration of OPG were detected in GCF from patients with periodontitis (*p < 0.05 vs. control subjects). The ratio of the concentration of RANKL to that of OPG in the GCF was significantly higher for periodontal disease patients than for healthy subjects (*p < 0.01). Taken together, these data suggest that RANKL and OPG contribute to osteoclastic bone destruction in periodontal disease. ABBREVIATIONS GCF, gingival crevicular fluid; IL, interleukin; OPG, osteoprotegerin; RANKL, receptor activator for NF-kappaB ligand.
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Affiliation(s)
- M Mogi
- Department of Pharmacology, School of Dentistry, Aichi-Gakuin University, Nagoya 464-8650, Japan
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29
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Ota N, Nakajima T, Ezura Y, Iwasaki H, Suzuki T, Hosoi T, Orimo H, Inoue S, Ito H, Emi M. Association of a single nucleotide variant in the human tumour necrosis factor alpha promoter region with decreased bone mineral density. Ann Hum Biol 2002; 29:550-8. [PMID: 12396374 DOI: 10.1080/03014460210135730] [Citation(s) in RCA: 10] [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: 10/27/2022]
Abstract
BACKGROUND Tumour necrosis factor alpha (TNFalpha) has come to be regarded as a potential osteoporotic factor, because it has stimulatory effects on cells of the osteoclast lineage and has been implicated in the pathogenesis of bone loss associated with oestrogen deficiency. We recently described genetic linkage between the TNFalpha locus and human osteoporosis by sib-pair analysis. However, the molecular mechanism by which this locus regulates bone mineral density (BMD) remains unknown. AIM We investigated whether the observed linkage reflects a sequence variation which might affect expression of the TNFalpha gene or alter the function of TNFalpha protein. SUBJECTS AND METHODS We examined three single-nucleotide polymorphisms (SNPs) of the TNFalpha gene in a group of 390 postmenopausal Japanese women living in northern Japan. Minor-allele frequencies for the three SNPs (-1031C, -863A and -857T) in this population were 0.16, 0.13 and 0.20, respectively. RESULTS Among the three SNPs examined, we observed a significant correlation only between the presence of a T allele at nt -1031 and decreased BMD, by analysis of variance. Among the three genotypic groups at nt -1031, mean BMD values were significantly higher in the T-negative genotype (C/C homozygotes; mean SD = 0.342 +/- 0.052 g cm(-2)), compared with T-positive genotypes (T/T homozygotes, 0.309 +/- 0.062 g cm(-2); p = 0.0253 and T/C heterozygotes, 0.305 +/- 0.062 g cm(-2); p = 0.0164). CONCLUSIONS Given the lines of evidence from different genetic studies, we suggest that TNFalpha may play a role in pathogenesis of osteoporosis.
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Affiliation(s)
- N Ota
- Department of Molecular Biology, Institute of Gerontology, Nippon Medical School, 1-396 Kosugi-cho, Nakahara-ku, Kawasaki 211-8533, Japan
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30
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Ota N, Sato T, Taira K, Ohkawa J. Molecular tryst peeping: detection of interactions between nonlabeled nucleic acids by fluorescence resonance energy transfer. Biochem Biophys Res Commun 2001; 289:1067-74. [PMID: 11741300 DOI: 10.1006/bbrc.2001.6098] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [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: 11/22/2022]
Abstract
We have developed a new method for monitoring the interactions between nonlabeled RNAs that involves detection of fluorescence resonance energy transfer (FRET) between two DNA probes with different fluorescent label. The sequences of the probes are complementary to those of the RNAs. In this study, we examined the interaction between a portion of the LTR RNA of HIV-1 and the corresponding antisense RNA. The antisense RNA was designed not to bind to the fluorescent DNA without prior hybridization to the target RNA. A mixture of RNAs and DNA probes with fluorescent labels was fractionated by electrophoresis on a nondenaturing polyacrylamide gel and then the gel was analyzed with a fluorescence imaging analyzer. FRET was observed only in the presence of target RNA, antisense RNA, and both of the fluorescent DNA probes. This strategy should be useful for the detection of interactions between nucleic acids that cannot be subjected to chemical modification, such as RNA transcripts inside cells.
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Affiliation(s)
- N Ota
- Faculty of Science and Technology, Keio University, Hiyoshi 3-14-1, Kohoku, Yokohama, 223-8522, Japan
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Ota N, Agard DA. Binding mode prediction for a flexible ligand in a flexible pocket using multi-conformation simulated annealing pseudo crystallographic refinement. J Mol Biol 2001; 314:607-17. [PMID: 11846570 DOI: 10.1006/jmbi.2001.5147] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.0] [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: 11/22/2022]
Abstract
We describe multi-conformation simulated annealing-pseudo-crystallographic refinement (MCSA-PCR), a technique developed for predicting the binding mode of a flexible ligand in a flexible binding pocket. To circumvent the local-minimum problem efficiently, this method performs multiple independent cycles of simulated annealing with explicit solvent, "growing" the ligand in the binding pocket each time. From the ensemble of structures, a pseudo-crystallographic electron density map is calculated, and then conventional crystallographic refinement methods are used to best fit a single, optimal structure into the density map. The advantage of the MCSA-PCR method is that it provides a direct means to evaluate the accuracy and uniqueness of the calculated solution, provides a measure of ligand and protein dynamics from the refined B-factors, and facilitates comparison with X-ray crystallographic data. Here, we show that our MCSA-PCR method succeeds in predicting the correct binding mode of the VSV8 peptide to the major histocompatibility complex (MHC) receptor. Importantly, there is a significant correlation between the experimentally determined crystallographic water molecules and water density observed in the pseudo map by MCSA-PCR. Furthermore, comparison of different approaches for extracting a single, most probable structure from the calculated ensemble reveals the power of the PCR method and provides insights into the nature of the energetic landscape.
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Affiliation(s)
- N Ota
- Howard Hughes Medical Institute and the Department of Biochemistry and Biophysics, University of California at San Francisco, CA 94143-0448, USA
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32
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Ota N, Nakajima T, Nakazawa I, Suzuki T, Hosoi T, Orimo H, Inoue S, Shirai Y, Emi M. A nucleotide variant in the promoter region of the interleukin-6 gene associated with decreased bone mineral density. J Hum Genet 2001; 46:267-72. [PMID: 11355017 DOI: 10.1007/s100380170077] [Citation(s) in RCA: 79] [Impact Index Per Article: 3.4] [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: 01/06/2023]
Abstract
Interleukin-6 (IL6) has come to be regarded as a potential osteoporotic factor because it has stimulatory effects on cells of the osteoclast lineage, and, thus, may play a role in the pathogenesis of bone loss associated with estrogen deficiency. We previously described association of the IL6 microsatellite with bone mineral density (BMD), as well as genetic linkage of the IL6 locus to human osteoporosis, by means of sib-pair analysis. However, the molecular mechanism by which this locus regulates BMD remains unknown. Accordingly, we searched for polymorphisms in the 5' and 3' flanking regions and in all five exons of the IL6 gene in a Japanese population sample. We identified three single-nucleotide sequence variations: a C/G substitution at nucleotide (nt) -634 in the promoter region, a G/A substitution at nt 4391 in the 3' noncoding region, and a variation in the AnTn tract around nt -447. The last of these had already been observed in Caucasians, as well as in Japanese. The single-nucleotide polymorphism at -634 created a restriction site for the BsrBI endonuclease, and the frequency of the minor (G) allele was 0.184. Five haplotypes were constructed among three variations examined in the population. Linkage disequilibrium was observed between the variation at -634 and the variation at 4391, as well as between the variation at -634 and the AnTn tract variation. We found a significant correlation, in 470 subjects, between the presence of the G allele and decreased BMD, by analysis of variance. When BMD values were compared among the three genotypic groups (G/G, G/C, C/C) at nt -634, BMD was lowest among the G/G homozygotes (mean +/- SD; 0.284 +/- 0.062g/cm2), highest among the C/C homozygotes (0.314 +/- 0.059g/cm2), and intermediate among the heterozygotes (0.303 +/- 0.066g/cm2; P < 0.05). Given the several lines of evidence from different genetic studies, we suggest that IL6 is, indeed, one of the genes affecting bone metabolism, in which variations can lead to osteoporosis.
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Affiliation(s)
- N Ota
- Department of Molecular Biology, Nippon Medical School, Kawasaki, Japan
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33
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Ota N, Agard DA. Enzyme specificity under dynamic control II: Principal component analysis of alpha-lytic protease using global and local solvent boundary conditions. Protein Sci 2001; 10:1403-14. [PMID: 11420442 PMCID: PMC2374101 DOI: 10.1110/ps.800101] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2001] [Revised: 04/10/2001] [Accepted: 04/16/2001] [Indexed: 10/16/2022]
Abstract
The contributions of conformational dynamics to substrate specificity have been examined by the application of principal component analysis to molecular dynamics trajectories of alpha-lytic protease. The wild-type alpha-lytic protease is highly specific for substrates with small hydrophobic side chains at the specificity pocket, while the Met190-->Ala binding pocket mutant has a much broader specificity, actively hydrolyzing substrates ranging from Ala to Phe. Based on a combination of multiconformation analysis of cryo-X-ray crystallographic data, solution nuclear magnetic resonance (NMR), and normal mode calculations, we had hypothesized that the large alteration in specificity of the mutant enzyme is mainly attributable to changes in the dynamic movement of the two walls of the specificity pocket. To test this hypothesis, we performed a principal component analysis using 1-nanosecond molecular dynamics simulations using either a global or local solvent boundary condition. The results of this analysis strongly support our hypothesis and verify the results previously obtained by in vacuo normal mode analysis. We found that the walls of the wild-type substrate binding pocket move in tandem with one another, causing the pocket size to remain fixed so that only small substrates are recognized. In contrast, the M190A mutant shows uncoupled movement of the binding pocket walls, allowing the pocket to sample both smaller and larger sizes, which appears to be the cause of the observed broad specificity. The results suggest that the protein dynamics of alpha-lytic protease may play a significant role in defining the patterns of substrate specificity. As shown here, concerted local movements within proteins can be efficiently analyzed through a combination of principal component analysis and molecular dynamics trajectories using a local solvent boundary condition to reduce computational time and matrix size.
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Affiliation(s)
- N Ota
- Howard Hughes Medical Institute and Department of Biochemistry and Biophysics, University of California-San Francisco, San Francisco, CA 94143-0448, USA
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34
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Ota N, Nakajima T, Emi M. [Genetic markers for prevention of osteoporosis]. Nihon Ronen Igakkai Zasshi 2001; 38:498-500. [PMID: 11523161] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/21/2023]
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35
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Nakamura N, Hart DA, Frank CB, Marchuk LL, Shrive NG, Ota N, Taira K, Yoshikawa H, Kaneda Y. Efficient transfer of intact oligonucleotides into the nucleus of ligament scar fibroblasts by HVJ-cationic liposomes is correlated with effective antisense gene inhibition. J Biochem 2001; 129:755-9. [PMID: 11328598 DOI: 10.1093/oxfordjournals.jbchem.a002916] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.0] [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: 11/13/2022] Open
Abstract
The efficacy of two different cationic liposomes, Lipofectin and hemagglutinating virus of Japan (HVJ)-cationic liposomes, on nuclear uptake of fluorescence-labeled phosphorothioate oligodeoxyribonucleotide (S-ODN) by ligament scar fibroblasts and suppression of decorin mRNA expression when antisense decorin S-ODN was transferred was investigated. There was no significant difference in nuclear uptake of fluorescent ODN between the two methods. However, only HVJ-cationic liposomes had a significant effect on suppression of decorin mRNA expression levels. To address the discrepancy, the molecular integrity of the transferred ODN in the cells was assessed by analysis of fluorescence resonance energy transfer (FRET) within double-fluorescence-labeled S-ODN. More than 70% of the ODN transfected by HVJ-cationic liposomes remained intact within the nucleus at 20 h after transfection, while the majority of the ODN transferred by Lipofectin was degraded at this point. These results suggest a strong relationship between the nuclear integrity of transfected antisense ODN and its suppression of target mRNA expression.
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Affiliation(s)
- N Nakamura
- McCaig Centre for Joint Injury and Arthritis Research, University of Calgary, Alberta, Canada
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36
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Iwasaki H, Ota N, Nakajima T, Shinohara Y, Kodaira M, Kajita M, Emi M. Five novel single-nucleotide polymorphisms of human interferon gamma identified by sequencing the entire gene. J Hum Genet 2001; 46:32-4. [PMID: 11289716 DOI: 10.1007/s100380170121] [Citation(s) in RCA: 10] [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: 11/27/2022]
Abstract
Interferon gamma (IFNG) plays important roles in the regulation of bone remodelling. We describe here six single-nucleotide polymorphisms (SNPs) in the IFNG gene, five of which are novel, and their allelic frequencies in the Japanese population, as determined by sequencing 48 alleles of the entire gene. Four of these polymorphisms were identified inside the third intron, at nucleotide (nt) positions 2459 (A/G), 2671 (T/C), 3177 (T/G), and 3273 (G/A). In exon 4, SNPs were identified at nt positions 5199 (A/T) and 5272 (A/G). These polymorphic sites will be useful for genetic studies of disorders that affect the inflammatory process or calcium metabolism.
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Affiliation(s)
- H Iwasaki
- Department of Molecular Biology, Institute of Gerontology, Nippon Medical School, Japan
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37
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Kajita M, Iwasaki H, Ota N, Shinohara Y, Kodaira M, Nakajima T, Emi M. Novel single nucleotide polymorphisms of the human colony-stimulating factor 2 (CSF2) gene identified by sequencing the entire gene. J Hum Genet 2001; 46:48-9. [PMID: 11289721 DOI: 10.1007/s100380170126] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [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: 10/27/2022]
Abstract
We describe three single nucleotide polymorphisms (SNPs) of the human colony-stimulating factor 2 (CSF2) gene and their allelic frequencies, as determined by direct sequencing of 48 alleles of the entire CSF2 gene. Three polymorphisms were identified, at nucleotide positions 1816 (T/C), 2284 (C/T), and 3079 (G/A). These polymorphisms will be useful in genetic studies not only of hematologic disorders but also of disorders of bone metabolism.
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Affiliation(s)
- M Kajita
- Department of Molecular Biology, Institute of Gerontology, Nippon Medical School, Kawasaki, Japan
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38
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Shinohara Y, Iwasaki H, Ota N, Nakajima T, Kodaira M, Kajita M, Shiba T, Emi M. Novel single nucleotide polymorphisms of the human nuclear factor kappa-B 2 gene identified by sequencing the entire gene. J Hum Genet 2001; 46:50-1. [PMID: 11289723 DOI: 10.1007/s100380170127] [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: 11/26/2022]
Abstract
The nuclear factor kappa-B 2 (NFKB2) gene is a member of the NFKB/Rel gene family, which is known to be a pivotal regulator of the acute phase of the inflammatory response and of immune responses. We identified three novel single nucleotide polymorphisms (SNPs) and determined their allelic frequencies, as determined by the sequencing of 48 alleles of the entire gene in a Japanese population sample. Two of the three polymorphisms were identified at nucleotide (nt) position 1837 (T/C) and nt position, 1867 (GG/G) in the upstream region of the gene. The other polymorphism was identified at nt position 2584 (G/T) within intron 1. These polymorphisms will be useful in genetic studies of the processes involved in inflammatory responses and in bone differentiation.
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Affiliation(s)
- Y Shinohara
- Department of Molecular Biology, Institute of Gerontology, Nippon Medical School, Kawasaki, Japan
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39
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Ota N, Hunt SC, Nakajima T, Suzuki T, Hosoi T, Orimo H, Shirai Y, Emi M. Linkage of human tumor necrosis factor-alpha to human osteoporosis by sib pair analysis. Genes Immun 2001; 1:260-4. [PMID: 11196702 DOI: 10.1038/sj.gene.6363668] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Osteoporosis as well as osteopenia are common human conditions considered to result from the interplay of multiple genetic and environmental factors. Twin and family studies have yielded strong correlation between measures of bone mass and a number of genetic factors. Certain genes (e.g., cytokines such as interleukin-1, interleukin-6, or tumor necrosis factor-alpha) are capable of regulating metabolism, formation, and resorption of bone; all processes that determine bone mass. We tested 192 sib-pairs of adult Japanese women from 136 families for genetic linkage between osteoporosis and osteopenia phenotypes and allelic variants at the tumor necrosis factor-alpha (TNFA) locus, using a dinucleotide-repeat polymorphism located near the gene. The TNFA locus showed evidence for linkage to osteoporosis, with mean allele sharing of 0.478 (P = 0.30) in discordant pairs and 0.637 (P = 0.001) in concordant affected pairs. Linkage with osteopenia was also significant in concordant affected pairs (P = 0.017). Analyses limited to the post-menopausal women in our cohort showed similar or even stronger linkage for both phenotypes. The results provide evidence that genetic variations within the TNFA locus or adjacent genes affect regulation of mineral metabolism in bone and some of them confer risk for osteoporosis in adult women.
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Affiliation(s)
- N Ota
- Department of Molecular Biology, Institute of Gerontology, Nippon Medical School, 1-396 Kosugi-cho, Nakahara-ku, Kawasaki 211-8533, Japan
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Fukasawa KM, Fukasawa K, Higaki K, Shiina N, Ohno M, Ito S, Otogoto J, Ota N. Cloning and functional expression of rat kidney dipeptidyl peptidase II. Biochem J 2001; 353:283-90. [PMID: 11139392 PMCID: PMC1221570 DOI: 10.1042/0264-6021:3530283] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Dipeptidyl peptidase II (DPP II; EC 3.4.14.2) from rat kidney was purified to a specific activity of 65.4 micromol/min per mg of protein for Lys-Ala-beta-naphthylamide. The N-terminal and partial amino acid sequences of the enzyme were determined. The peptide sequences were used to identify expressed sequence tag (EST) clones. By using the cDNA fragment of one of the EST clones as a probe, we isolated a cDNA clone with 1710 bp encoding DPP II from a rat kidney cDNA library. The cDNA of rat DPP II contained an open reading frame of 1500 bp, coding for a protein of 500 amino acids. The first 10 residues of the purified enzyme matched the deduced protein sequence starting with residue 37, suggesting the presence of a signal peptide. The mature enzyme (464 residues) had a calculated molecular mass of 51400 Da, which was lower than the value (about 60000 Da) determined by SDS/PAGE; and the deduced amino acid sequence showed six potential N-glycosylation sites. The deduced amino acid sequence of rat DPP II shared high similarity with quiescent-cell proline dipeptidase (78% identity) and prolyl carboxypeptidase (38% identity) and bore the putative catalytic triad (Ser, Asp, His) conserved in serine peptidase families. We transiently transfected COS-7 cells with pcDNA3.1 containing the cloned cDNA and obtained the overexpression of an immunoreactive protein (of about 60000 Da). The transfected cells showed Lys-Ala-methylcoumarinamide-hydrolysing activity that was 50 times higher than the control cells.
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Affiliation(s)
- K M Fukasawa
- Department of Oral Biochemistry, Matsumoto Dental University, Shiojiri, Nagano 399-0781, Japan.
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Tsukamoto K, Orimo H, Hosoi T, Miyao M, Ota N, Nakajima T, Yoshida H, Watanabe S, Suzuki T, Emi M. Association of bone mineral density with polymorphism of the human calcium-sensing receptor locus. Calcif Tissue Int 2000; 66:181-3. [PMID: 10666491 DOI: 10.1007/pl00005835] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.3] [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] [Indexed: 10/24/2022]
Abstract
A strong correlation between bone mass and genetic factors has been shown in twins and family studies. Some of the genes involved would regulate bone metabolism, bone formation, and resorption, all processes that determine bone mass. One candidate genes, calcium-sensing receptor (CASR) in the parathyroid gland, regulates calcium homeostasis by sensing decreases in extracellular calcium level and effecting an increase in secretion of parathyroid hormone (PTH) and calcium (Ca) reabsorption in the kidney. We have investigated a possible association between the CA-repeat polymorphism at the human CASR gene locus and the bone mineral density (BMD) of radial bone in 472 postmenopausal Japanese women. Genotypes were classified into nine groups according to the number of CA repeats present, from 20 to 12. BMD was expressed as the adjusted BMD, which was the body mass index (BMI), and age-adjusted average BMD. The 247 women who had an A3 allele (228 bp, containing 18 repeats of CA) had significantly lower adjusted BMD (mean +/- SD: 0.303 +/- 0.059 versus 0.316 +/- 0.063 g/cm(2); P = 0.0308) than the participants (n = 201) who did not carry an allele of that size. This result suggests that genetic variation at the CASR gene locus is associated with some determinants for BMD in postmenopausal women.
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Affiliation(s)
- K Tsukamoto
- Department of Molecular Biology, Institute of Gerontology, Nippon Medical School, 1-396 Kosugi-cho, Nakahara-ku, Kawasaki 211-8533, Japan
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Ota N, Stroupe C, Ferreira-da-Silva JM, Shah SA, Mares-Guia M, Brunger AT. Non-Boltzmann thermodynamic integration (NBTI) for macromolecular systems: relative free energy of binding of trypsin to benzamidine and benzylamine. Proteins 1999; 37:641-53. [PMID: 10651279 DOI: 10.1002/(sici)1097-0134(19991201)37:4<641::aid-prot14>3.0.co;2-w] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
The relative free energies of binding of trypsin to two amine inhibitors, benzamidine (BZD) and benzylamine (BZA), were calculated using non-Boltzmann thermodynamic integration (NBTI). Comparison of the simulations with the crystal structures of both complexes, trypsin-BZD and trypsin-BZA, shows that NBTI simulations better sample conformational space relative to thermodynamic integration (TI) simulations. The relative binding free energy calculated using NBTI was much closer to the experimentally determined value than that obtained using TI. The error in the TI simulation was found to be primarily due to incorrect sampling of BZA's conformation in the binding pocket. In contrast, NBTI produces a smooth mutation from BZD to BZA using a surrogate potential, resulting in a much closer agreement between the inhibitors' conformations and the omit electron density maps. This superior agreement between experiment and simulation, of both relative binding free energy differences and conformational sampling, demonstrates NBTI's usefulness for free energy calculations in macromolecular simulations.
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Affiliation(s)
- N Ota
- Department of Molecular Biophysics and Biochemistry, Yale University, New Haven, Connecticut 06520, USA
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Abstract
We identified a new common amino acid polymorphism of isoleucine/valine at codon 796 in exon 16 of the gene for human sterol regulatory element binding protein (SREBP) cleavage-activating protein (SCAP), a central regulator of lipid synthesis and metabolism in animal cells. It can be detected as an MslI restriction fragment length polymorphism. The allelic frequencies were: isoleucine (A) allele, 0.57 and valine (G) allele, 0.43. This polymorphism may be useful for genetic studies of disorders affecting intracellular lipid metabolism and hyperlipidemia.
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Affiliation(s)
- K Iwaki
- Department of Molecular Biology, Nippon Medical School, Kawasaki, Japan
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Abstract
Genes that can be implicated in hypertension in experimental animals are plausible candidates in the pathogenesis of human hypertension. A recent genome-wide search for quantitative-trait loci (QTL) in hypertensive rats revealed a strong correlation between the interleukin-6 (IL-6) locus on rat chromosome 4 and systolic, diastolic, and mean arterial pressure in this mammalian species. To investigate a possible association between genetic variations of the IL-6 gene and hypertension in humans, we identified two novel single-nucleotide sequence variations, a C/G substitution at -634 in the promoter region and a G/A substitution at 4391 in a 3' non-coding portion of exon 5, and a previous reported sequence variant, an A/T variation in the composition of the AnTn tract around -447 in the promoter region (Fishman D et al. J Clin Invest 1998; 102: 1369-1376), within a test population of 96 Japanese subjects. Allelic associations involving these variations were analyzed in 150 hypertensive and 143 normotensive Japanese women. The distribution of alleles of the three polymorphisms, as well as a dinucleotide repeat present at the IL-6 locus, was similar in the two groups. Therefore, the IL-6 gene appears to play a minimal role in the genetic etiology of essential hypertension in Japanese women.
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Affiliation(s)
- T Nakajima
- Department of Molecular Biology, Institute of Gerontology, Nippon Medical School, 1-396, Kosugi-cho, Nakahara-ku, Kawasaki, Japan 211-8533
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Nakajima T, Ota N, Shirai Y, Hata A, Yoshida H, Suzuki T, Hosoi T, Orimo H, Emi M. Ethnic difference in contribution of Sp1 site variation of COLIA1 gene in genetic predisposition to osteoporosis. Calcif Tissue Int 1999; 65:352-3. [PMID: 10541758 DOI: 10.1007/s002239900711] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.2] [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] [Indexed: 11/30/2022]
Abstract
Osteoporosis, a condition characterized by low bone mineral density (BMD) leading to bone fragility [1], is a major public health concern in Japan as well as in other countries. Although genetic predisposition seems to be a factor in the pathogenesis of osteoporosis [2-4], the precise cohort of genes that may be involved is not well defined. The COLIA1 and COLIA2 genes encode polypeptide constituents of collagen type Ialpha1 and Ialpha2, respectively. Both are important candidates as genetic regulators of BMD, since mutations in either gene result in osteogenesis imperfecta, a disorder characterized by severe osteoporosis [5]. Some patients with adult osteoporosis also carry mutations in COLIA1 or COLIA2 genes [6].http://link.springer-ny. com/link/service/journals/00223/bibs/65n5p352.html</++ +hea
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Affiliation(s)
- T Nakajima
- Department of Molecular Biology, Institute of Gerontology, Nippon Medical School, Kawasaki-Tokyo, 211-8533, Japan
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Abstract
The interleukin-11 (IL-11) stimulates T cell-dependent development of immunoglobulin-producing B cells and collaborates with IL-3 in supporting murine megakaryocyte colony formation. The interleukin-11 (IL-11) also stimulates osteoclast formation and inhibits osteoclast function in vitro and has been implicated in estrogen deficiency-induced bone loss. We isolated a polymorphic dinucleotide (CA) repeat sequence from a genomic clone containing the IL-11 gene located at 19q13.3-q13.4. High heterozygosity (0.81) makes this polymorphism a useful marker in genetic study of disorders affecting immune response and bone metabolism.
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Affiliation(s)
- N Ota
- Department of Molecular Biology, Institute of Gerontology, Nippon Medical School, 1-396, Kosugi-cho, Nakahara-ku, Kawasaki 211-8533, Japan
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Nakajima T, Ota N, Kodama T, Emi M. Isolation and radiation hybrid mapping of a highly polymorphic CA repeat sequence at the SREBP cleavage-activating protein (SCAP) locus. J Hum Genet 1999; 44:350-1. [PMID: 10496082 DOI: 10.1007/s100380050175] [Citation(s) in RCA: 3] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
Sterol regulatory element binding protein (SREBP) cleavage-activating protein (SCAP) is a central regulator of lipid synthesis and uptake in animal cells. A polymorphic dinucleotide (CA) repeat sequence was isolated from a genomic clone containing the SCAP gene and was mapped to chromosome 3p21.3. High heterozygosity (0.89) makes this polymorphism a useful marker in the genetic study of disorders affecting lipid metabolism.
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Affiliation(s)
- T Nakajima
- Department of Molecular Biology, Nippon Medical School, Kawasaki, Japan
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Abstract
Osteopenia and osteoporosis are common human conditions considered to result from the interplay of multiple genetic and environmental factors. Twin and family studies have yielded strong correlations between levels of bone mass and a number of genetic factors. The genes involved could regulate metabolism, formation and resorption of bone, all processes that determine bone mass. We tested 192 sibling pairs of adult Japanese women from 136 families for genetic linkage between osteopenia and allelic variants of four candidate genes (interleukin-6, interleukin-6 receptor, calcium-sensing receptor, and matrix gla protein) using qualitative and quantitative methods, and using as genetic markers dinucleotide-repeat polymorphisms present in or near each of those loci. The interleukin-6 locus showed evidence of linkage to osteopenia analyzed as a qualitative trait, with mean allele sharing of 0.40 (P=0.0001) in discordant pairs and 0.55 (P=0.04) in concordant affected pairs. Variation at this locus was also linked to decreased bone mineral density measured as a quantitative trait (P=0.02). Analyses limited only to the post-menopausal women showed similar or even stronger results. No other locus among those tested showed any evidence of linkage by either method. The results provided strong evidence that genetic variation at the interleukin-6 locus affects regulation of bone mineral metabolism and confers risk for osteopenia and osteoporosis in adult women.
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Affiliation(s)
- N Ota
- Department of Molecular Biology, Institute of Gerontology, Nippon Medical School, Kawasaki, Japan
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Ota N, Hunt S, Nakajima T, Suzuki T, Hosoi T, Orimo H, Shirai Y, Emi M. Linkage of interleukin 6 locus to human osteopenia by sibling pair analysis. Hum Genet 1999. [DOI: 10.1007/s004399900126] [Citation(s) in RCA: 6] [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: 11/30/2022]
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