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Baba T, Fujimori Y, Kurihara K, Yamanaka Y, Hashimoto S, Terasawa Y, Hata H, Yokota D, Wakabayashi T, Imai T. A bolus of saline injection leads to increase in coronary flow based on the viscosity reduction effect: the mechanism of saline induced Pd/Pa ratio. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.1395] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
In conjunction with fractional flow reserve (FFR), our previous study has shown the accuracy and utility of saline induced Pd/Pa ratio (SPR) for the assessment of myocardial ischemia. However, the potential mechanism how saline injection leads to increase in coronary flow remains speculative.
Purpose
This study aimed to clarify the underlying mechanism of SPR by using swine models.
Methods
The study was conducted in four swine models, and bolus of 25°C saline, 40°C saline, and 25°C dextran was injected at rates of 40mL/5sec through a catheter inserted into the superior mesenteric artery. Its peripheral arterioles were observed and recorded by a digital microscope, and transit time of each fluid and a luminal diameter of arterioles before and after injection were measured.
Results
The result from arterioles diameters of pre- and post-injection (0.049±0.016mm vs. 0.050±0.016mm; P=0.636) indicated that luminal diameters remained unchanged regardless of fluid administration. The transit time of 25°C saline was significantly shorter than 25°C dextran (3.19±0.68sec vs. 6.15±1.19sec; P<0.0001). Although the result showed no significance, the transit time of 40°C saline with lower viscosity was shorten compared to 25°C saline (3.1±0.43sec vs. 3.65±0.46sec; P=0.088).
Conclusions
Compared to 25°C dextran (viscosity of 4.991mPa·s) having the same viscosity as 37°C whole blood, 25°C saline (viscosity of 1.012mPa·s) caused increasing to double the intravascular flow volume without dilating arterioles. The results strongly suggested that the potential mechanism of SPR was viscosity reduction effect. Combined with FFR which is based on vasodilation-mediated hyperemia, these findings may contribute to clarifying the pathophysiology and especially the microcirculation in coronary artery diseases.
Funding Acknowledgement
Type of funding source: None
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Affiliation(s)
- T Baba
- Rikuzankai Iida Hospital, Iida, Japan
| | | | | | | | | | | | - H Hata
- Suwa Central Hospital, Chino, Japan
| | - D Yokota
- Rikuzankai Iida Hospital, Iida, Japan
| | | | - T Imai
- Suwa Central Hospital, Chino, Japan
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2
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Yamanaka Y, Fujimori Y, Hashimoto S, Kurihara K, Wakabayashi T, Imai T, Baba T, Takeuchi W, Yokota D. The developing mechanism of atherosclerotic lesion in coronary side branch on the ventricular free wall differs by the location of lesion. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.1259] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
The effective treating method of coronary side branch lesions such as ostial stenosis or thin arteries has not been established. On the other hand, tortuous side branch rarely has stenotic lesions.
Purpose
We focused on coronary side branches on the ventricular free wall, and examined coronary risk factors and bending and stretching motion of branch which can contribute to the development of atherosclerotic lesion.
Methods
In elective and first-time coronary angiograms, we included side branches on the ventricular free wall (>2mm in diameter) and excluded previously treated ones. Study A; we divided arteries into proximal, middle, and distal segment, and examined the presence of tortuosity and stenotic lesions exceeding 50% diameter stenosis (DS) for each segment. A score of 1 was assigned to tortuous segment, and 0 to non-tortuous one. Study B; we included stenotic lesion (>50% DS) in side branch ostium and excluded those extended across main coronary arteries. Relation between lesions and patients' characteristics was examined.
Results
Study A; in 1,828 side branches from 472 patients, middle and distal segments had significantly higher tortuosity score than proximal (0.68, 0.78 vs. 0.34; p<0.0001). On the contrary, proximal segments had more stenotic lesions except ostial stenosis (230 vs. 69, 5; p<0.0001). Study B; in 1,740 side branches from 465 patients, 122 ostial stenotic lesions were found (7.0%). Multivariate logistic regression analysis revealed diabetes mellitus and age as independent contributors to development of ostial stenosis (Table).
Conclusions
Side branch stenosis developed less frequently in middle and distal segments, where stronger ventricular wall motion reinforces bending and stretching motion and tortuosity of arteries. This fact indicates that those characteristics may prevent developing atherosclerosis through increasing shear stress. On the other hand, diabetes mellitus strongly contributes to the development of ostial stenosis. Thus, the developing mechanism of atherosclerotic lesion in side branch on the ventricular free wall differs by the location of lesion.
Funding Acknowledgement
Type of funding source: None
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Affiliation(s)
| | | | | | | | | | - T Imai
- Suwa Central Hospital, Chino, Japan
| | - T Baba
- Iida Hospital, Cardiology, Iida, Japan
| | | | - D Yokota
- Iida Hospital, Cardiology, Iida, Japan
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3
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Kurihara K, Shimauchi T, Kasuya A, Yatagai T, Ito T, Tokura Y. Multiple facial plaques of diffuse plane xanthoma arising from regressed tumours of folliculotropic mycosis fungoides. Clin Exp Dermatol 2020; 46:358-360. [PMID: 32686225 DOI: 10.1111/ced.14387] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/15/2020] [Indexed: 11/29/2022]
Affiliation(s)
- K Kurihara
- Department of Dermatology, Hamamatsu University School of Medicine, Hamamatsu, Japan
| | - T Shimauchi
- Department of Dermatology, Hamamatsu University School of Medicine, Hamamatsu, Japan
| | - A Kasuya
- Department of Dermatology, Hamamatsu University School of Medicine, Hamamatsu, Japan
| | - T Yatagai
- Department of Dermatology, Fujieda Municipal General Hospital, Fujieda, Japan
| | - T Ito
- Department of Dermatology, Hamamatsu University School of Medicine, Hamamatsu, Japan
| | - Y Tokura
- Department of Dermatology, Hamamatsu University School of Medicine, Hamamatsu, Japan
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4
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Phadungsaksawasdi P, Fujiyama T, Kurihara K, Umayahara T, Ito T, Tokura Y. 082 CD8+ IL-23R+ PD-1+ T cells in psoriatic skin possibly play a role in maintaining inflammation and disease recurrence. J Invest Dermatol 2019. [DOI: 10.1016/j.jid.2019.07.085] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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5
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Manno T, Kaneda T, Suzuki M, Goto K, Osaka Y, Miyazaki T, Suzuki A, Kurihara K, Ono Y, Otomo K, Shimizu S, Hirao K. P6467Echocardiographic comparison about left atrium between cryoballoon and radiofrequency ablation in patients with paroxysmal atrial fibrillation. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy566.p6467] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- T Manno
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - T Kaneda
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - M Suzuki
- Yokohama Minami Kyosai Hospital, Department of Cardiology, Yokohama, Japan
| | - K Goto
- Ome Municipal GeneralHospital, Department of Cardiology, Tokyo, Japan
| | - Y Osaka
- Ome Municipal GeneralHospital, Department of Cardiology, Tokyo, Japan
| | - T Miyazaki
- Ome Municipal GeneralHospital, Department of Cardiology, Tokyo, Japan
| | - A Suzuki
- Ome Municipal GeneralHospital, Department of Cardiology, Tokyo, Japan
| | - K Kurihara
- Ome Municipal GeneralHospital, Department of Cardiology, Tokyo, Japan
| | - Y Ono
- Ome Municipal GeneralHospital, Department of Cardiology, Tokyo, Japan
| | - K Otomo
- Ome Municipal GeneralHospital, Department of Cardiology, Tokyo, Japan
| | - S Shimizu
- NHO Disaster Medical Center, Department of Cardiology, Tokyo, Japan
| | - K Hirao
- Tokyo Medical and Dental University, Departmentof Cardiology, Tokyo, Japan
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Hashimoto S, Fujimori Y, Baba T, Kurihara K, Ebisuda K, Terasawa Y, Wakabayashi T, Yamazaki K, Imai T. P3658Saline induced Pd/Pa ratio can predict functional significance of coronary stenosis assessed using fractional flow reserve. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy563.p3658] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
| | - Y Fujimori
- Suwa Central Hospital, Chino, Nagano, Japan
| | - T Baba
- Suwa Central Hospital, Chino, Nagano, Japan
| | - K Kurihara
- Suwa Central Hospital, Chino, Nagano, Japan
| | - K Ebisuda
- Suwa Central Hospital, Chino, Nagano, Japan
| | - Y Terasawa
- Suwa Central Hospital, Chino, Nagano, Japan
| | | | - K Yamazaki
- Showa Inan General Hospital, Komagane, Nagano, Japan
| | - T Imai
- Suwa Central Hospital, Chino, Nagano, Japan
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7
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Ito T, Kenmochi T, Aida N, Kurihara K, Kawai A, Ito T. Effectiveness of Preceding Solo Kidney Transplantation for Type 1 Diabetes With End-Stage Renal Failure. Transplant Proc 2018; 50:3249-3254. [PMID: 30577193 DOI: 10.1016/j.transproceed.2018.06.014] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2018] [Accepted: 06/19/2018] [Indexed: 11/18/2022]
Abstract
Preceding solo kidney transplantation for type 1 diabetes with end-stage renal failure is controversial because of less pancreatic graft survival in pancreas transplantation after kidney transplantation (PAK) than in simultaneous pancreas and kidney transplantation (SPK). METHODS To study the effectiveness of preceding solo kidney transplantation for type 1 diabetes with end-stage renal failure, comparative retrospective analysis was performed between SPK (n = 232) and PAK (n = 39) that were performed until December 2016. RESULTS At 1, 3, and 5 years, pancreatic graft survival in SPK was 87.5%, 86.4%, and 82.8%, respectively, and 87.1%, 65.0%, and 49.1%, respectively, in PAK, which showed lesser long-term graft survival than SPK. Because 10 cases out of 16 (62.5%) failed into pancreatic graft loss with rejection in PAK, which was about 3 times more than in SPK, control of rejection is very important; rejection episodes were decreased by rabbit antithymocyte globulin induction resulting in improved graft survival. Five-year patient survival was 88.0% in SPK and 96.6% in PAK. CONCLUSION Considering patient survival, preceding solo kidney transplantation for type 1 diabetes with end-stage renal failure should be performed if a donor is available.
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Affiliation(s)
- T Ito
- Department of Transplantation and Regenerative Medicine, School of Medicine, Fujita Health University, Aichi, Japan
| | - T Kenmochi
- Department of Transplantation and Regenerative Medicine, School of Medicine, Fujita Health University, Aichi, Japan
| | - N Aida
- Department of Transplantation and Regenerative Medicine, School of Medicine, Fujita Health University, Aichi, Japan
| | - K Kurihara
- Department of Transplantation and Regenerative Medicine, School of Medicine, Fujita Health University, Aichi, Japan
| | - A Kawai
- Department of Transplantation and Regenerative Medicine, School of Medicine, Fujita Health University, Aichi, Japan
| | - T Ito
- Registry of Japanese Pancreas Transplantation, Japan Society for Pancreas & Islet Transplantation, Osaka, Japan.
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8
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Kurihara K, Fujiyama T, Itou T, Tokura Y. 401 CD8+CD103+ skin resident memory T cells are a subpopulation of CD8+MDR-1+ cells in lesional skin of psoriasis and correlate with the clinical course. J Invest Dermatol 2018. [DOI: 10.1016/j.jid.2018.03.408] [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: 11/28/2022]
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9
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Fujiyama T, Umayahara T, Kurihara K, Shimauchi T, Itou T, Hashizume H, Yagi H, Tokura Y. 563 Skin-infiltrating Th17/Tc17 and Th1/Tc1cells are significantly decreased and IL-17+ CD103+ resident memory T cells partly remain after secukinumab treatment. J Invest Dermatol 2018. [DOI: 10.1016/j.jid.2018.03.571] [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: 10/17/2022]
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10
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Nakamura K, Alam M, Jiang Y, Mitarai O, Kurihara K, Kawamata Y, Sueoka M, Takechi M, Hasegawa M, Tokunaga K, Araki K, Zushi H, Hanada K, Fujisawa A, Idei H, Nagashima Y, Kawasaki S, Nakashima H, Higashijima A, Nagata T, Fukuyama A. Plasma equilibrium based on RF-driven current profile without assuming nested magnetic surfaces on QUEST. Fusion Engineering and Design 2017. [DOI: 10.1016/j.fusengdes.2017.05.070] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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11
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Takechi M, Matsunaga G, Sakurai S, Sasajima T, Yagyu J, Kawamata Y, Kurihara K, Nakamura K. Progress of the magnetic sensor development for JT-60SA. Fusion Engineering and Design 2017. [DOI: 10.1016/j.fusengdes.2017.03.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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12
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Nishio S, Shibata T, Yamaguchi S, Kanao H, Kojima A, Takekuma M, Tozawa A, Tokunaga H, Miyagi E, Kato H, Kurihara K, Yanase T, Ushijima K, Mikami M, Sugiyama T. Investigation of the clinicopathological features of vulva cancer: a retrospective survey of the JGOG Net Work study. Ann Oncol 2017. [DOI: 10.1093/annonc/mdx372.054] [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: 11/14/2022] Open
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13
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Kurihara K, Kado S, Matsuura H, Shikama T, Iida Y, Chung KS, Tanaka S. Development of a Thermal Probe Method for Heat Flux and Ion Temperature Measurement in the Divertor Simulator MAP-II. Fusion Science and Technology 2017. [DOI: 10.13182/fst07-a1365] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- K. Kurihara
- School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo, Tokyo 113-8656, Japan
| | - S. Kado
- High Temperature Plasma Center, The University of Tokyo, Japan
| | - H. Matsuura
- Graduate School of Engineering, Osaka Prefecture University, Japan
| | - T. Shikama
- School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo, Tokyo 113-8656, Japan
| | - Y. Iida
- School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo, Tokyo 113-8656, Japan
| | - K.-S. Chung
- High Temperature Plasma Center, The University of Tokyo, Japan
| | - S. Tanaka
- School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo, Tokyo 113-8656, Japan
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14
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Hashimoto S, Fujimori Y, Yamazaki K, Baba T, Nishiyama S, Yamanaka Y, Ebisuda K, Kurihara K, Wakabayashi T, Imai T. P2388Efficay of intracoronary saline injection induced Pd/Pa ratio to evaluate functional significance of coronary artery stenosis assessed by fractional flow reserve. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx502.p2388] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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15
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Date S, Noguchi H, Kaku K, Kurihara K, Miyasaka Y, Okabe Y, Nakamura U, Ohtsuka T, Nakamura M. Laparoscopy-Assisted Spleen-Preserving Distal Pancreatectomy for Living-Donor Pancreas Transplantation. Transplant Proc 2017; 49:1133-1137. [PMID: 28583543 DOI: 10.1016/j.transproceed.2017.03.037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
BACKGROUND Living pancreas transplantation plays an important role in the treatment of patients with severe type 1 diabetes. However, pancreatectomy is very invasive for the donor, and less-invasive surgical procedures are needed. Although some reports have described hand-assisted laparoscopic surgery for distal pancreatectomy in living-donor operations, less-invasive laparoscopy-assisted (LA) procedures are expected to increase the donor pool. We herein report the outcomes of four cases of LA spleen-preserving distal pancreatectomy (Warshaw technique [WT]) in living pancreas donors. PATIENTS AND METHODS Four living pancreas donors underwent LA-WT at our institution from September 2010 to January 2013. All donors fulfilled the donor criteria established by the Japan Society for Pancreas and Islet Transplantation. RESULTS The median donor age was 54 years. Two donors underwent left nephrectomy in addition to LA-WT for simultaneous pancreas-kidney transplantation. The median donor operation time for pancreatectomy was 340.5 minutes. The median pancreas warm ischemic time was 3 minutes. The median donor blood loss was 246 g. All recipients immediately achieved insulin independence. One donor required reoperation because of obstructive ileus resulting from a port-site hernia. Another donor developed a pancreatic fistula (International Study Group of Pancreatic Fistula grade B), which was controlled with conservative management. After a maximum follow-up of 73 months, no clinically relevant adverse events had occurred. These results were comparable with those of previous studies concerning living-donor pancreas transplantation. CONCLUSION The LA-WT is a safe and acceptable operation for living-donor pancreas transplantation.
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Affiliation(s)
- S Date
- Department of Surgery and Oncology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - H Noguchi
- Department of Surgery and Oncology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - K Kaku
- Department of Surgery and Oncology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - K Kurihara
- Department of Surgery and Oncology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Y Miyasaka
- Department of Surgery and Oncology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Y Okabe
- Department of Surgery and Oncology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan.
| | - U Nakamura
- Department of Medicine and Clinical Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - T Ohtsuka
- Department of Surgery and Oncology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - M Nakamura
- Department of Surgery and Oncology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
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16
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Fukuda T, Oikawa T, Takeji S, Isayama A, Kawano Y, Neyatani Y, Nagashima A, Nishitani T, Konoshima S, Tamai H, Fujita T, Sakamoto Y, Kamada Y, Ide S, Koide Y, Takenaga H, Kurihara K, Sakata S, Ozeki T, Kawamata Y, Miura YM. Advanced Real-Time Feedback Control in JT-60U High Performance Discharges for Application to Fusion Reactor Plasmas. Fusion Science and Technology 2017. [DOI: 10.13182/fst02-a233] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- T. Fukuda
- Japan Atomic Energy Research Institute, Naka Fusion Research Establishment Naka-machi, Naka-gun, Ibaraki-ken 311-0193, Japan
| | - T. Oikawa
- Japan Atomic Energy Research Institute, Naka Fusion Research Establishment Naka-machi, Naka-gun, Ibaraki-ken 311-0193, Japan
| | - S. Takeji
- Japan Atomic Energy Research Institute, Naka Fusion Research Establishment Naka-machi, Naka-gun, Ibaraki-ken 311-0193, Japan
| | - A. Isayama
- Japan Atomic Energy Research Institute, Naka Fusion Research Establishment Naka-machi, Naka-gun, Ibaraki-ken 311-0193, Japan
| | - Y. Kawano
- Japan Atomic Energy Research Institute, Naka Fusion Research Establishment Naka-machi, Naka-gun, Ibaraki-ken 311-0193, Japan
| | - Y. Neyatani
- Japan Atomic Energy Research Institute, Naka Fusion Research Establishment Naka-machi, Naka-gun, Ibaraki-ken 311-0193, Japan
| | - A. Nagashima
- Japan Atomic Energy Research Institute, Naka Fusion Research Establishment Naka-machi, Naka-gun, Ibaraki-ken 311-0193, Japan
| | - T. Nishitani
- Japan Atomic Energy Research Institute, Naka Fusion Research Establishment Naka-machi, Naka-gun, Ibaraki-ken 311-0193, Japan
| | - S. Konoshima
- Japan Atomic Energy Research Institute, Naka Fusion Research Establishment Naka-machi, Naka-gun, Ibaraki-ken 311-0193, Japan
| | - H. Tamai
- Japan Atomic Energy Research Institute, Naka Fusion Research Establishment Naka-machi, Naka-gun, Ibaraki-ken 311-0193, Japan
| | - T. Fujita
- Japan Atomic Energy Research Institute, Naka Fusion Research Establishment Naka-machi, Naka-gun, Ibaraki-ken 311-0193, Japan
| | - Y. Sakamoto
- Japan Atomic Energy Research Institute, Naka Fusion Research Establishment Naka-machi, Naka-gun, Ibaraki-ken 311-0193, Japan
| | - Y. Kamada
- Japan Atomic Energy Research Institute, Naka Fusion Research Establishment Naka-machi, Naka-gun, Ibaraki-ken 311-0193, Japan
| | - S. Ide
- Japan Atomic Energy Research Institute, Naka Fusion Research Establishment Naka-machi, Naka-gun, Ibaraki-ken 311-0193, Japan
| | - Y. Koide
- Japan Atomic Energy Research Institute, Naka Fusion Research Establishment Naka-machi, Naka-gun, Ibaraki-ken 311-0193, Japan
| | - H. Takenaga
- Japan Atomic Energy Research Institute, Naka Fusion Research Establishment Naka-machi, Naka-gun, Ibaraki-ken 311-0193, Japan
| | - K. Kurihara
- Japan Atomic Energy Research Institute, Naka Fusion Research Establishment Naka-machi, Naka-gun, Ibaraki-ken 311-0193, Japan
| | - S. Sakata
- Japan Atomic Energy Research Institute, Naka Fusion Research Establishment Naka-machi, Naka-gun, Ibaraki-ken 311-0193, Japan
| | - T. Ozeki
- Japan Atomic Energy Research Institute, Naka Fusion Research Establishment Naka-machi, Naka-gun, Ibaraki-ken 311-0193, Japan
| | - Y. Kawamata
- Japan Atomic Energy Research Institute, Naka Fusion Research Establishment Naka-machi, Naka-gun, Ibaraki-ken 311-0193, Japan
| | - Y. M. Miura
- Japan Atomic Energy Research Institute, Naka Fusion Research Establishment Naka-machi, Naka-gun, Ibaraki-ken 311-0193, Japan
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17
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Takechi M, Matsunaga G, Sakurai S, Sasajima T, Yagyu J, Hoshi R, Kawamata Y, Kurihara K, Nishikawa T, Ryo T, Kagamihara S, Nakamura K. Development of magnetic sensors for JT-60SA. Fusion Engineering and Design 2015. [DOI: 10.1016/j.fusengdes.2015.06.108] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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18
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Ota M, Kurihara K, Aki K, Miwa Y, Inage T, Maeno K. Quantitative density measurement of the lateral jet/cross-flow interaction field by colored-grid background oriented schlieren (CGBOS) technique. J Vis (Tokyo) 2015. [DOI: 10.1007/s12650-015-0297-7] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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19
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Kaku K, Kitada H, Noguchi H, Kurihara K, Kawanami S, Nakamura U, Tanaka M. Living Donor Kidney Transplantation Preceding Pancreas Transplantation Reduces Mortality in Type 1 Diabetics With End-stage Renal Disease. Transplant Proc 2015; 47:733-7. [DOI: 10.1016/j.transproceed.2014.12.048] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2014] [Accepted: 12/30/2014] [Indexed: 10/23/2022]
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20
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Noguchi H, Kitada H, Kaku K, Kurihara K, Kawanami S, Tsuchimoto A, Masutani K, Nakamura U, Tanaka M. Outcome of renal transplantation in patients with type 2 diabetic nephropathy: a single-center experience. Transplant Proc 2015; 47:608-11. [PMID: 25817610 DOI: 10.1016/j.transproceed.2014.12.047] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2014] [Accepted: 12/30/2014] [Indexed: 10/23/2022]
Abstract
BACKGROUND Renal transplantation has been established as a treatment for end-stage renal disease (ESRD) due to diabetic nephropathy. However, few studies have focused on the outcome after renal transplantation in patients with ESRD and type 2 diabetic nephropathy. To investigate the effect of renal transplantation on ESRD with type 2 diabetic nephropathy, we retrospectively analyzed patients who received renal transplantation at our facility. This study aimed to compare the outcome of renal transplantation for type 2 diabetic nephropathy with that for nondiabetic nephropathy. METHODS We studied 290 adult patients, including 65 with type 2 diabetic nephropathy (DM group) and 225 with nondiabetic nephropathy (NDM group), who underwent living-donor renal transplantation at our facility from February 2008 to March 2013. We compared the 2 groups retrospectively. RESULTS In the DM and NDM groups, the 5-year patient survival rates were 96.6% and 98.7%, and the 5-year graft survival rates were 96.8% and 98.0%, respectively, with no significant differences between the groups. There were no significant differences in the rates of surgical complications, rejection, and infection. The cumulative incidence of postoperative cardiovascular events was higher in the DM group than in the NDM group (8.5% vs 0.49% at 5 years; P = .002). CONCLUSIONS Patient and graft survival rates after renal transplantation for type 2 diabetic nephropathy are not inferior to those for recipients without diabetic nephropathy. Considering the poor prognosis of patients with diabetic nephropathy on dialysis, renal transplantation can provide significant benefits for these patients.
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Affiliation(s)
- H Noguchi
- Department of Surgery and Oncology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan.
| | - H Kitada
- Department of Surgery and Oncology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - K Kaku
- Department of Surgery and Oncology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - K Kurihara
- Department of Surgery and Oncology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - S Kawanami
- Department of Surgery and Oncology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - A Tsuchimoto
- Department of Medicine and Clinical Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - K Masutani
- Department of Medicine and Clinical Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - U Nakamura
- Department of Medicine and Clinical Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - M Tanaka
- Department of Surgery and Oncology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
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Kurihara K, Kitada H, Miura Y, Terasaka S, Kaku K, Miyamoto K, Tsuchimoto A, Masutani K, Tanaka M. Impact of flow cytometry crossmatch B-cell positivity on living renal transplantation. Transplant Proc 2013; 45:2903-6. [PMID: 24157001 DOI: 10.1016/j.transproceed.2013.08.047] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
BACKGROUND Various studies have reported poorer graft survival among individuals displaying T-cell-positive flow cytometry crossmatches (FCXM). Good outcomes have been observed in immunologically high-risk patients with the use of rituximab, plasmapheresis, and γ-globulin. Because the relevance of FCXM B-cell-positivity (BCXM (+)) alone remains controversial, we examined its impact on living donor renal transplantations. PATIENTS AND METHODS We retrospectively studied 146 adult renal transplantation recipients from April 2007 to June 2012, dividing the patients into BCXM (+) (n = 31) versus BCXM (-) recipients (n = 115). We examined patient and graft survivals as well as rejection rates at 0 to 3, 3 to 12, and 12 to 24 months. We also determined the incidence of infectious diseases. We performed stepwise multivariate regression to identify risk factors contributing rejection episodes. RESULTS One-year patient and graft survivals were 100% in both groups. The BCXM (-) group have a 16.8% rejection probability whereas the BCXM (+) group, 33.2% (P = .201). There were no significantly differences in the incidence of infectious diseases. Only the rate of a sensitizing history was an independent risk factor for a rejection episode. CONCLUSION BCXM (+) showed only a tendency but not a significant impact on rejection episodes compared with BCXM (-); short-term graft survivals were similar.
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Affiliation(s)
- K Kurihara
- Department of Surgery and Oncology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan.
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Saegusa J, Kurikami H, Yasuda R, Kurihara K, Arai S, Kuroki R, Matsuhashi S, Ozawa T, Goto H, Takano T, Mitamura H, Nagano T, Naganawa H, Yoshida Z, Funaki H, Tokizawa T, Nakayama S. Decontamination of outdoor school swimming pools in Fukushima after the nuclear accident in March 2011. Health Phys 2013; 104:243-250. [PMID: 23361418 DOI: 10.1097/hp.0b013e318277b3ee] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Because of radioactive fallout resulting from the Fukushima Daiichi Nuclear Power Plant (NPP) accident, water discharge from many outdoor swimming pools in Fukushima was suspended out of concern that radiocesium in the pool water would flow into farmlands. The Japan Atomic Energy Agency has reviewed the existing flocculation method for decontaminating pool water and established a practical decontamination method by demonstrating the process at eight pools in Fukushima. In this method, zeolite powder and a flocculant are used for capturing radiocesium present in pool water. The supernatant is discharged if the radiocesium concentration is less than the targeted level. The radioactive residue is collected and stored in a temporary storage space. Radioactivity concentration in water is measured with a NaI(Tl) or Ge detector installed near the pool. The demonstration results showed that the pool water in which the radiocesium concentration was more than a few hundred Bq L was readily purified by the method, and the radiocesium concentration was reduced to less than 100 Bq L. The ambient dose rates around the temporary storage space were slightly elevated; however, the total increase was up to 30% of the background dose rates when the residue was shielded with sandbags.
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Affiliation(s)
- J Saegusa
- Fukushima Environmental Safety Center, Headquarters of Fukushima Partnership Operations, Japan Atomic Energy Agency, Japan.
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Hyodo M, Sata N, Koizumi M, Sakuma Y, Kurihara K, Lefor AT, Ohki J, Nagai H, Yasuda Y. Laparoscopic splenectomy using pneumoperitoneum or gasless abdominal wall lifting: a 15-year single institution experience. Asian J Endosc Surg 2012; 5:63-8. [PMID: 22776366 DOI: 10.1111/j.1758-5910.2011.00124.x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/24/2011] [Revised: 10/03/2011] [Accepted: 11/11/2011] [Indexed: 12/01/2022]
Abstract
INTRODUCTION Laparoscopic splenectomy using pneumoperitoneum has been performed since 1992. The gasless abdominal wall-lifting method for laparoscopic splenectomy was introduced as an alternative. This retrospective study was undertaken to compare results using the two techniques. METHODS Between 1995 and 2010, 54 patients underwent laparoscopic splenectomy at a single institution; 30 underwent the procedure using the gasless technique and 24 using pneumoperitoneum. There were no significant differences between the two groups regarding age, sex or BMI, but more patients underwent concurrent operations in the pneumoperitoneum group. The abdominal wall-lift system with subcutaneous K-wires was used for the gasless method. RESULTS Intraoperative blood loss was similar in the two groups (193.0 ± 196.7 mL gasless, 217.3 ± 296.6 mL pneumoperitoneum; P > 0.05), but operative time (182.1 ± 92.1 min, 135.1 ± 46.1 min; P < 0.05), and resected spleen weight (306.1 ± 297.7 g, 138 ± 81.0 g; P < 0.05) were significantly different. In the gasless group, additional procedures included conversion (n = 1), mini-laparotomy (n = 2), and CO(2) insufflation (n = 2). Excluding the concurrent living-related kidney donor patients, hospital stay was similar (6.9 ± 2.5 days, 6.3 ± 2.0 days, P > 0.05). CONCLUSION Although gasless laparoscopic splenectomy is feasible, there are disadvantages, particularly the restricted operative working space in some patients. These results suggest that either technique may be used on an individual basis in patients undergoing laparoscopic splenectomy.
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Affiliation(s)
- M Hyodo
- Department of Surgery, School of Medicine, Jichi Medical University, Shimotsuke, Japan.
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Hosoya T, Nakamura T, Katagiri M, Ebine M, Birumachi A, Kusaka K, Tomoyori K, Yamada T, Yokoyama T, Ohhara T, Kurihara K, Niimura N, Tanaka I, Soyama K. Developments for upgrades of two-dimension scintillator detector system, data acquisition electronics and software for J-PARC. Acta Crystallogr A 2011. [DOI: 10.1107/s0108767311083486] [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: 11/11/2022] Open
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Kawasaki A, Takano K, Takahashi M, Ohhara T, Ohshima K, Kusaka K, Tanaka I, Yamada T, Hosoya T, Kurihara K, Niimura N. Crystal structure of C 4H 8ONH 2-PbBr 3by neutron and X-ray diffraction experiments. Acta Crystallogr A 2011. [DOI: 10.1107/s0108767311081578] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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Kusaka K, Yamada T, Hosoya T, Ohhara T, Kurihara K, Tomoyori K, Yokoyama T, Tanaka I, Niimura N. The first neutron structure analysis of protein with iBIX in J-PARC. Acta Crystallogr A 2011. [DOI: 10.1107/s0108767311081463] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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Yokoyama T, Nabeshima Y, Hosoya T, Ohhara T, Kurihara K, Kusaka K, Mizuguchi M, Tanaka I, Niimura N. Preliminary neutron crystallographic study of mutant transthyretin. Acta Crystallogr A 2011. [DOI: 10.1107/s0108767311092476] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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Abstract
ABSTRACTThe role of 02 gas addition on the deposition of Diamond-like Carbon (DLC) film was studied for hard disk drive (HDD) media application. The influence of 02 gas mixing ratio on DLC film quality was investigated using the dc magnetron sputtering method with a solid graphite target and Ar, CH4 and 02 mixing gases. The 02 mixing ratio was varied between 0% and 50%. Film quality was evaluated using Raman spectroscopy and XPS. When 02 gas mixing ratio increased the peak in Raman spectra shifted gradually to higher wavenumbers and its bandwidth became narrower. This indicates graphite component increased in the DLC film. In addition, the lubricant coverage on oxygen-containing DLC was improved. Because adding oxygen increases the terminations of carbonyl group on DLC surface, this result suggests that the polar surface causes higher affinity for the lubricant
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Takamasu T, Miyagawa M, Wada M, Harada S, Hiroki K, Kurihara K. Clinical Features of Food Allergic Children with Malnutrition. J Allergy Clin Immunol 2010. [DOI: 10.1016/j.jaci.2009.12.343] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Niimura N, Chatake T, Ostermann A, Kurihara K, Tanaka I. High resolution neutron protein crystallography. Hydrogen and hydration in proteins. ACTA ACUST UNITED AC 2009. [DOI: 10.1524/zkri.218.2.96.20666] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
Abstract
Neutron diffraction provides an experimental method of directly locating hydrogen atoms in proteins, and the development of the neutron imaging plate (NIP) became a breakthrough event in neutron protein crystallography. The general features of the NIP are reviewed. A high resolution neutron diffractometer dedicated to biological macromolecules (BIX-3) with the NIP has been constructed at Japan Atomic Energy Research Institute and this has enabled 1.5 Å resolution structural analyses of several proteins to be carried out. The specifications of BIX-3 and LADI (a quasi-Laue type diffractometer installed in the Institut Laue-Langevin) are compared. The crystal structures of myoglobin, wild type rubredoxin and a mutant of rubredoxin have been carried out using BIX-3. From these studies, several topics, such as the location of hydrogen bonds and certain acidic hydrogen atoms, the identification of methyl hydrogen atoms, details of H/D exchange and dynamical behavior of hydration structures have been investigated, and important information has been extracted from the structural results. Finally, a systematic procedure to grow large single crystals of proteins or nucleic acids is described.
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Takamasu T, Kurihara K. Kiwi Fruit Allergy Evaluated the Difference between Green and Gold. J Allergy Clin Immunol 2009. [DOI: 10.1016/j.jaci.2008.12.120] [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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Tashiro K, Hanesaka M, Yoshizawa Y, Ohhara T, Kurihara K, Kuroki R, Tamada T, Fujiwara S, Ozeki T, Takata M, Sasaki S, Kohara S. First success in direct evaluation of electron density distribution of polymer by X–N method. Acta Crystallogr A 2008. [DOI: 10.1107/s010876730809315x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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Okazaki N, Ohhara T, Umino H, Chatake T, Kurihara K, Cachau R, Blaber M, Niimura N, Kuroki R. Development of Hydrogen and Hydration Database for Biomolecules (HHDB). Acta Crystallogr A 2008. [DOI: 10.1107/s0108767308079828] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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Tanaka I, Kusaka K, Tomoyori K, Niimura N, Ohhara T, Kurihara K, Hosoya T, Ozeki T. A new biological neutron diffractometer (iBIX) in J-PARC. Acta Crystallogr A 2008. [DOI: 10.1107/s0108767308094129] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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35
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Kusaka K, Ohhara T, Kurihara K, Tanaka I, Hosoya T, Tomoyori K, Ozeki T, Niimura N. Optimization of design parameters of IBARAKI Biological Crystal Diffractometer (iBIX) in J-PARC. Acta Crystallogr A 2008. [DOI: 10.1107/s0108767308094117] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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36
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Hanesaka M, Tashiro K, Yoshizawa Y, Kitano T, Nishu T, Ohhara T, Tanaka I, Niimura N, Kurihara K, Kuroki R, Tamada T, Fujiwara S, Ozeki T. Application of neutron imaging-plate system to crystal structure analysis of deuterated polymers. Acta Crystallogr A 2008. [DOI: 10.1107/s0108767308081865] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/03/2023] Open
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37
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Shimizu T, Nakatsu T, Shimizu N, Sato M, Kurihara K, Miyairi K, Okuno T, Niimura N, Yamamoto M, Kato H. Ultra-high resolution structure of endopolygalacturonase determined by X-ray and neutron diffraction. Acta Crystallogr A 2008. [DOI: 10.1107/s0108767308088223] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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Kurihara K, Ohhara T, Kusaka K, Niita K, Hosoya T, Tomoyori K, Niimura N, Tanaka I. Optics and shielding of IBARAKI Biological Crystal Diffractometer (iBIX) in J-PARC. Acta Crystallogr A 2008. [DOI: 10.1107/s0108767308094105] [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: 11/11/2022] Open
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39
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Ohnishi Y, Masaki T, Yamada T, Kurihara K, Tanaka I, Niimura N. Large single-crystal growth and preliminary neutron diffraction analysis of Achromobacterprotease I. Acta Crystallogr A 2008. [DOI: 10.1107/s0108767308092209] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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40
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Ohhara T, Kusaka K, Hosoya T, Kurihara K, Tomoyori K, Niimura N, Tanaka I, Suzuki J, Nakatani T, Otomo T, Matsuoka S, Tomita K, Nishimaki Y, Ajima T, Ryufuku S. Development of data-processing software for a TOF single-crystal neutron diffractometer at J-PARC. Acta Crystallogr A 2008. [DOI: 10.1107/s0108767308094087] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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41
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Mizukami M, Zhong G, Fukuchi I, Zhang L, Kurihara K. In situpolymerization of molecular macroclusters on silica: poly( N-isopropylacrylamide) nano-films. Acta Crystallogr A 2008. [DOI: 10.1107/s0108767308081981] [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: 11/11/2022] Open
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42
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Nakano S, Mizukami M, Kurihara K. Resonance shear measurement on liquid crystal confined between solid surfaces under electric field. Acta Crystallogr A 2008. [DOI: 10.1107/s0108767308082275] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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43
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Tadokoro M, Ohhara T, Ohhata Y, Yonamine R, Tanaka I, Kurihara K, Yamamuro O, Ryota K. Dynamics phase transition of water nanotube cluster stabilized in molecular nanoporous crystal. Acta Crystallogr A 2008. [DOI: 10.1107/s0108767308082688] [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: 11/11/2022] Open
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44
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Shinozaki K, Hayashi S, Wakiya N, Kiguchi T, Tanaka J, Ishizawa N, Sato K, Kondo M, Kurihara K. Fabrication and optical properties of Pb(Mg(1/3)Nb(2/3))O(3)-PbTiO(3) thin films on Si substrates using the PLD method. IEEE Trans Ultrason Ferroelectr Freq Control 2008; 55:1023-1028. [PMID: 18519205 DOI: 10.1109/tuffc.2008.749] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Epitaxial 0.67Pb(Mg(1/3)Nb(2/3))O(3)-PbTiO(3)-0.33PbTiO(3) (PMN-PT) thin films with electro-optic effects were fabricated on (PMN-PT) thin films with electro-optic effects were fabricated on (La0(0.5)Sr0(0.5))CoO(3) (LSCO)/CeO(2)/YSZ-buffered Si(001) substrates using double-pulse excitation pulsed laser deposition (PLD) method with a mask placed between the target and the substrate. Epitaxial growth of PMN-PT thin films was undertaken using the two-step growth method of PMN-PT film. The PMN-PT seed layer was deposited at 500 degrees C on the LSCO/CeO(2)/YSZ/Si, which temperature was the same as that used for LSCO deposition. The PMN-PT thin films were deposited on the PMN-PT seed layer at 600 degrees C, which enables growth of high-crystallinity PMN-PT films with smooth surfaces. We obtained optimum fabrication conditions of PMNPT film with micrometer-order thickness. Resultant films showed high crystallinity with full width at half maximum (FWHM) = 0.73 deg and 1.6 mum thickness. Electro-optic properties and the refractive index value were measured at 633 nm wavelength using the prism coupling method. The obtained refractive index was 2.59. The electro-optic coefficients r(13) and r(33) were determined by applying the electrical field between a semitransparent, thin top electrode of Pt and a bottom LSCO electrode. The electro-optic coefficient was r(13) = 17 pm/V at transverse electric field (TE) mode and r(33) = 55 pm/V at transverse magnetic field (TM) mode.
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Affiliation(s)
- K Shinozaki
- Department of Metallurgy and Ceramics Science, Graduate School of Science and Engineering, Tokyo Institute of Technology, Meguro-ku, Tokyo 152-8550, Japan.
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Chung KS, Kado S, Woo HJ, Seo YJ, Shikama T, Scotti F, Choi GS, Kurihara K, Kuwahara Y, Lee MJ, Lho T, Tanaka S. Measurement of Density Profiles with Pressure in MAP-II and DiPS Linear Devices. Fusion Science and Technology 2007. [DOI: 10.13182/fst07-a1316] [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] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- K.-S. Chung
- electric Probe Applications Lab., Hanyang University, Seoul, Korea
- High Temperature Plasma Center, The University of Tokyo, Kashiwa, Chiba, Japan
| | - S. Kado
- electric Probe Applications Lab., Hanyang University, Seoul, Korea
| | - H.-J. Woo
- High Temperature Plasma Center, The University of Tokyo, Kashiwa, Chiba, Japan
| | - Y.-J. Seo
- High Temperature Plasma Center, The University of Tokyo, Kashiwa, Chiba, Japan
| | - T. Shikama
- Graduate School of Engineering, The University of Tokyo, Bunkyo, Tokyo, Japan
| | - F. Scotti
- Graduate School of Engineering, The University of Tokyo, Bunkyo, Tokyo, Japan
| | - G.-S. Choi
- High Temperature Plasma Center, The University of Tokyo, Kashiwa, Chiba, Japan
| | - K. Kurihara
- Graduate School of Engineering, The University of Tokyo, Bunkyo, Tokyo, Japan
| | - Y. Kuwahara
- Graduate School of Engineering, The University of Tokyo, Bunkyo, Tokyo, Japan
| | - M.-J. Lee
- High Temperature Plasma Center, The University of Tokyo, Kashiwa, Chiba, Japan
| | - T. Lho
- National Fusion Research Center, Korea Basic Science Institute, Daejeon, Korea
| | - S. Tanaka
- Graduate School of Engineering, The University of Tokyo, Bunkyo, Tokyo, Japan
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Enomoto Y, Takamasu T, Nakazawa M, Kurihara K, Minami M, Saito H, Okayama Y. Increase of Amphiregulin Level in Sputum during Exacerbation of Acute Asthma Attacks in Children. J Allergy Clin Immunol 2007. [DOI: 10.1016/j.jaci.2006.11.495] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Affiliation(s)
- K. Kurihara
- a Department of Chemistry, Faculty of Science , Hokkaido University , Sapporo , 060 , Japan
| | - Y. Matsunaga
- a Department of Chemistry, Faculty of Science , Hokkaido University , Sapporo , 060 , Japan
- b Department of Materials Science , Kanagawa University, Tsuchiya , Hiratsuka , Kanagawa , 259-12 , Japan
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Yonekawa I, Sueoka M, Hosoyama H, Kawamata Y, Suzuki T, Kurihara K. Advanced data handling for plasma profile control in JT-60. Fusion Engineering and Design 2006. [DOI: 10.1016/j.fusengdes.2006.04.050] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Kurihara K, Yonekawa I, Kawamata Y, Sueoka M, Hosoyama H, Sakata S, Ohshima T, Sato M, Kiyono K, Ozeki. T. Status and prospect of JT-60 plasma control and diagnostic data processing systems for advanced operation scenarios. Fusion Engineering and Design 2006. [DOI: 10.1016/j.fusengdes.2006.04.058] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Sata N, Shiozawa M, Suzuki A, Kurihara K, Ohki J, Nagai H. Retroperitoneal hand-assisted laparoscopic surgery for endoscopic adrenalectomy. Surg Endosc 2006; 20:830-3. [PMID: 16544074 DOI: 10.1007/s00464-005-0450-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2005] [Accepted: 12/27/2005] [Indexed: 01/22/2023]
Abstract
Although hand-assisted laparoscopic surgery (HALS) is very common in various laparoscopic procedures, it is rarely used for retroperitoneal endoscopic adrenalectomy because of the small working area. The authors evaluate HALS in endoscopic adrenalectomy with respect to its use as a rescue procedure in complicated cases. In their department, 47 patients underwent endoscopic adrenalectomies between 1998 and 2004. Mainly because of complicated anatomy, three primary aldosteronism cases were converted to retroperitoneal HALS. This involved making an additional 6 cm skin incision, into which the surgeon's left hand was inserted, with the palm used to create a sufficient visual field and working area. The fingers were used for tactile sensation and blunt resection. For these three cases, successful retroperitoneal HALS in endoscopic adrenalectomy resulted in no mortality or morbidity. These findings indicate that this procedure is a feasible technique for complicated benign adrenal tumor cases.
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Affiliation(s)
- N Sata
- Department of Surgery, Jichi Medical University, 3311-1 Yakushiji Shimotsuke Tochigi, 329-0498, Japan.
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