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Katoh N, Nakazato K, Uchinami Y, Kanehira T, Takahashi S, Koizumi F, Taguchi H, Nishioka K, Yasuda K, Tamura M, Takao S, Miyamoto N, Matsuura T, Kobashi K, Aoyama H. Evaluation of the Possibility of Dose Realignment Adaptation by Shifting the Isocenter in Proton Beam Therapy for Pancreatic Cancer. Int J Radiat Oncol Biol Phys 2023; 117:e307. [PMID: 37785114 DOI: 10.1016/j.ijrobp.2023.06.2330] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) In pancreatic cancer, a tumor is surrounded by the gastrointestinal (GI) tract, which is subject to changes in location, shape, and contents. Due to these inter-fractional changes, proton beam therapy (PBT) for pancreatic cancer may result in unintentionally high doses to the GI tract. Daily adaptive re-planning can solve this problem, but is not yet established with PBT due to its resource intensive characteristics. This study aims to evaluate the GI tract dose using weekly computed tomography (CTw) and the possibility of dose realignment adaptation by shifting the isocenter (IC) of the PBT plan, which does not require re-planning. MATERIALS/METHODS We retrospectively analyzed 6 consecutive patients with unresectable pancreatic cancer treated with real-time-image gated PBT using a fiducial marker. The planning CT was scanned at the natural expiration of respiration and a PBT plan of 60 GyE in 25 fractions (baseline plan, PLANbase) was created. The CTw images were acquired the day before start of PBT and once a week during the PBT course thereafter. The PLANbase was rigidly transferred to the CTw based on the relationship between the three-dimensional coordinates of the fiducial marker and those of the IC in the PLANbase. The PLANeval was created by recalculating the PLANbase on the CTw. We evaluated the doses to the stomach, duodenum, and intestines in the PLANeval according to the following criteria: Dmax of the stomach < 60 GyE, duodenum and intestines < 55 GyE, and D1cc of the stomach < 55 GyE, duodenum and intestines < 54 GyE. In addition, we investigated the GI tract dose realignment adaptation for the PLANeval with its IC shifted 2mm, 4mm, and 6mm in each of 6 directions (right, left, ventral, dorsal, cranial, and caudal), respectively. RESULTS A total of 35 PLANeval were created for the CTw. In the PLANbase of the 6 patients, the average of Dmax and D1cc of the stomach, duodenum and intestines were 50.7 GyE (range, 46.7-53.6) and 50.0 GyE (45.0-53.2), 49.2 GyE (44.3-51.7) and 48.8 GyE (43.7-51.5), and 49.2 GyE (44.8-52.0) and 48.9 GyE (44.6-51.8), respectively. In the PLANeval, the average of Dmax and D1cc of the stomach, duodenum, and intestines were 53.3GyE (43.8-61.4) and 52.8 GyE (43.2-61.1), 51.0 GyE (36.1-60.0) and 50.3 GyE (35.4-59.8), and 52.5 GyE (36.6-61.0) and 51.9 (34.4-60.9) GyE, respectively. Twenty-two of the 35 PLANeval (63 %) did not meet at least one of the GI tract dose criteria. In 11 of 22 PLANeval with higher doses to the GI tract, the IC shift resulted in GI dose reductions and all dose criteria were met. The minimum amount of the IC shift required to meet the criteria was 2 mm for 8 plans and 4 mm for 3 plans. The remaining 11 PLANeval did not meet the criteria using dose realignment adaptation by shifting the isocenter. CONCLUSION Adaptive replanning is necessary for PBT for pancreatic cancers due to excessive GI tract doses in more than 60% of the plans. Dose realignment adaptation by shifting the IC, which does not require re-planning, may be an option in adaptive treatment strategies.
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Affiliation(s)
- N Katoh
- Department of Radiation Oncology, Hokkaido University Faculty of Medicine and Graduate School of Medicine, Sapporo, Japan
| | - K Nakazato
- Department of Medical Physics, Hokkaido University Hospital, Sapporo, Japan
| | - Y Uchinami
- Department of Radiation Oncology, Hokkaido University Faculty of Medicine and Graduate School of Medicine, Sapporo, Japan
| | - T Kanehira
- Department of Medical Physics, Hokkaido University Hospital, Sapporo, Japan
| | - S Takahashi
- Department of Radiation Oncology, Hokkaido University Faculty of Medicine and Graduate School of Medicine, Sapporo, Japan
| | - F Koizumi
- Department of Radiation Oncology, Hokkaido University Faculty of Medicine and Graduate School of Medicine, Sapporo, Japan
| | - H Taguchi
- Department of Radiation Oncology, Hokkaido University Hospital, Sapporo, Japan
| | - K Nishioka
- Global Center for Biomedical Science and Engineering, Hokkaido University Faculty of Medicine, Sapporo, Japan
| | - K Yasuda
- Department of Radiation Oncology, Hokkaido University Hospital, Sapporo, Japan
| | - M Tamura
- Department of Medical Physics, Hokkaido University Hospital, Sapporo, Japan
| | - S Takao
- Faculty of Engineering, Hokkaido University, Sapporo, Japan
| | - N Miyamoto
- Faculty of Engineering, Hokkaido University, Sapporo, Japan
| | - T Matsuura
- Faculty of Engineering, Hokkaido University, Sapporo, Japan
| | - K Kobashi
- Global Center for Biomedical Science and Engineering, Hokkaido University Faculty of Medicine, Sapporo, Japan
| | - H Aoyama
- Department of Radiation Oncology, Hokkaido University Faculty of Medicine and Graduate School of Medicine, Sapporo, Japan
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2
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Sung WT, Sakai K, Etou H, Yamamichi R, Yoneda T, Matsuura T, Maruyama T, Nishi D. Cardiac tamponade during pembrolizumab treatment in a patient with ovarian cancer: a case report. Int Cancer Conf J 2023; 12:305-310. [PMID: 37577348 PMCID: PMC10421831 DOI: 10.1007/s13691-023-00621-x] [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] [Received: 03/01/2023] [Accepted: 06/23/2023] [Indexed: 08/15/2023] Open
Abstract
We present the case of a 39-year-old woman with platinum-resistant ovarian cancer who was treated with pembrolizumab. After five cycles of pembrolizumab treatment, she suddenly developed cardiac tamponade with a pleural effusion. The malignant pericardial and pleural effusion had increased, while the other malignant lesions had diminished in size. After pericardial and pleural drainage, no re-accumulation occurred. Pembrolizumab was continued and the patient did not have tumor progression for > 20 months. In some patients with pembrolizumab-induced cardiac tamponade, continuation of pembrolizumab treatment may be possible if other lesions decrease in size and the pericardial effusion can be controlled after drainage.
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Affiliation(s)
- Wei-Ting Sung
- Department of Obstetrics and Gynecology, Saiseikai Fukuoka General Hospital, 1-3-46, Tenjin, Chuo-ku, Fukuoka, 810-0001 Japan
- Department of Gynecology and Obstetrics, Faculty of Medicine, Kyushu University, 3-1-1, Maidashi, Higashi-ku, Fukuoka, 812-8582 Japan
| | - Kunihiro Sakai
- Department of Obstetrics and Gynecology, Saiseikai Fukuoka General Hospital, 1-3-46, Tenjin, Chuo-ku, Fukuoka, 810-0001 Japan
| | - Haruka Etou
- Department of Obstetrics and Gynecology, Saiseikai Fukuoka General Hospital, 1-3-46, Tenjin, Chuo-ku, Fukuoka, 810-0001 Japan
| | - Rikiko Yamamichi
- Department of Obstetrics and Gynecology, Saiseikai Fukuoka General Hospital, 1-3-46, Tenjin, Chuo-ku, Fukuoka, 810-0001 Japan
| | - Tomoko Yoneda
- Department of Obstetrics and Gynecology, Saiseikai Fukuoka General Hospital, 1-3-46, Tenjin, Chuo-ku, Fukuoka, 810-0001 Japan
| | - Toshiaki Matsuura
- Department of Obstetrics and Gynecology, Saiseikai Fukuoka General Hospital, 1-3-46, Tenjin, Chuo-ku, Fukuoka, 810-0001 Japan
| | - Tomoyoshi Maruyama
- Department of Obstetrics and Gynecology, Saiseikai Fukuoka General Hospital, 1-3-46, Tenjin, Chuo-ku, Fukuoka, 810-0001 Japan
| | - Daisuke Nishi
- Department of Obstetrics and Gynecology, Saiseikai Fukuoka General Hospital, 1-3-46, Tenjin, Chuo-ku, Fukuoka, 810-0001 Japan
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3
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Alihemati Z, Hashemifard S, Matsuura T, Ismail A. On performance and anti-fouling properties of double-skinned thin film nanocomposite hollow fiber membranes in forward osmosis system. Chem Eng Res Des 2023. [DOI: 10.1016/j.cherd.2023.03.048] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/31/2023]
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4
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Maekawa S, Johnson T, Fujita M, Takata R, Ikarashi D, Matsuura T, Kato R, Kanehira M, Sugimura J, Abe T, Nakagawa H, Obara W. Genomic features of renal cell carcinoma developed during end-stage renal disease and dialysis. Eur Urol 2023. [DOI: 10.1016/s0302-2838(23)01082-5] [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: 02/12/2023]
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5
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Kobayashi E, Nakatani E, Tanaka T, Yosuke K, Kanao H, Shiki Y, Kotani Y, Hoshiba T, Minami R, Yoshida H, Kyo S, Yorimitsu M, Yamashita T, Hasegawa T, Matsuura T, Kagami S, Fujioka T, Hirohiko T, Nishio S, Takekuma M, Mikami M, Enomoto T. Surgical skill and oncological outcome of laparoscopic radical hysterectomy: JGOG1081s-A1, an ancillary analysis of the Japanese Gynecologic Oncology Group Study JGOG1081. Gynecol Oncol 2022; 165:293-301. [DOI: 10.1016/j.ygyno.2022.02.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Revised: 02/05/2022] [Accepted: 02/06/2022] [Indexed: 12/13/2022]
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6
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Yamaguchi K, Wakatsuki T, Okushi Y, Suto K, Matsumoto K, Takahashi T, Kadota M, Kawabata Y, Matsuura T, Ise T, Kusunose K, Yagi S, Yamada H, Soeki T, Sata M. Early and chronic phased local coagulative responses following bioresorbable-polymer drug-eluting stent implantation. Eur Heart J 2021. [DOI: 10.1093/eurheartj/ehab724.1245] [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: 11/12/2022] Open
Abstract
Abstract
Background
Neointimal maturation after bioresorbable-polymer (BP) drug-eluting stent (DES) implantation will not be complete in the absorption phase of the polymer. We have previously reported local persistent hypercoagulation after sirolimus-eluting stent (SES) implantation by measuring local plasma prothrombin fragment 1+2 (F1+2) levels. The aim of this study is to examine time-dependent local coagulative response after BP-DES implantation.
Methods
Sixty-four patients who were treated about ten months earlier with coronary angioplasty, with no evidence of restenosis, were studied [durable-polymer (DP)-DES {SES; Cypher®: 26pts and everolimus-eluting stent (EES); Xience®: 16pts} and BP-DES (BP-EES; Synergy®: 10pts and BP-SES; Ultimaster®: 12pts)]. We measured plasma levels of F1+2 sampled in coronary sinus (CS) and sinus of Valsalva (V) at the early (2±1 months) and chronic (10±2 months) phases. The transcardiac gradient (Δ) was defined as CS level minus V level.
Results
No significant differences were observed in the percent diameter stenosis between the DP- and BP- DES groups (11.5±15.5 vs 14.1±11.9%). The ΔF1+2 was significantly lower in the BP-DES group than in the DP-DES group at the chronic phase (7.5±16.1 vs 16.4±17.1pmol/l, p<0.05). In the BP-DES group, the ΔF1+2 did not differ significantly between the early and chronic phases (7.0±14.1 vs 7.5±16.1pmol/l, NS).
Conclusion
Lower local coagulative response was observed at the chronic phase after BP-DES implantation compared to DP-DES implantation, and local hypercoagulation after BP-DES implantation was not observed at the early phase compared to the chronic phase. These findings might lead to the possibility of shorter dual antiplatelet therapy after BP-DES implantation.
Funding Acknowledgement
Type of funding sources: None.
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Affiliation(s)
- K Yamaguchi
- Department of Cardiovascular Medicine, Tokushima University Hospital, Tokushima, Japan
| | - T Wakatsuki
- Department of Cardiovascular Medicine, Tokushima University Hospital, Tokushima, Japan
| | - Y Okushi
- Department of Cardiovascular Medicine, Tokushima University Hospital, Tokushima, Japan
| | - K Suto
- Department of Cardiovascular Medicine, Tokushima University Hospital, Tokushima, Japan
| | - K Matsumoto
- Department of Cardiovascular Medicine, Tokushima University Hospital, Tokushima, Japan
| | - T Takahashi
- Department of Cardiovascular Medicine, Tokushima University Hospital, Tokushima, Japan
| | - M Kadota
- Department of Cardiovascular Medicine, Tokushima University Hospital, Tokushima, Japan
| | - Y Kawabata
- Department of Cardiovascular Medicine, Tokushima University Hospital, Tokushima, Japan
| | - T Matsuura
- Department of Cardiovascular Medicine, Tokushima University Hospital, Tokushima, Japan
| | - T Ise
- Department of Cardiovascular Medicine, Tokushima University Hospital, Tokushima, Japan
| | - K Kusunose
- Department of Cardiovascular Medicine, Tokushima University Hospital, Tokushima, Japan
| | - S Yagi
- Department of Cardiovascular Medicine, Tokushima University Hospital, Tokushima, Japan
| | - H Yamada
- Department of Cardiovascular Medicine, Tokushima University Hospital, Tokushima, Japan
| | - T Soeki
- Department of Cardiovascular Medicine, Tokushima University Hospital, Tokushima, Japan
| | - M Sata
- Department of Cardiovascular Medicine, Tokushima University Hospital, Tokushima, Japan
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7
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Alihemati Z, Hashemifard SA, Matsuura T, Ismail AF. Feasibility of using polycarbonate as a substrate of thin film composite membrane in forward osmosis. J Appl Polym Sci 2021. [DOI: 10.1002/app.50511] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Z. Alihemati
- Sustainable Membrane Technology Research Group (SMTRG), Faculty of Petroleum, Gas and Petrochemical Engineering (FPGPE) Persian Gulf University (PGU) Bushehr Iran
| | - S. A. Hashemifard
- Sustainable Membrane Technology Research Group (SMTRG), Faculty of Petroleum, Gas and Petrochemical Engineering (FPGPE) Persian Gulf University (PGU) Bushehr Iran
| | - T. Matsuura
- Advanced Membrane Technology Research Centre (AMTEC) Universiti Teknologi Malaysia Skudai Malaysia
- Department of Chemical and Biological Engineering University of Ottawa Ottawa Canada
| | - A. F. Ismail
- Advanced Membrane Technology Research Centre (AMTEC) Universiti Teknologi Malaysia Skudai Malaysia
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8
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Iwame T, Matsuura T, Okahisa T, Katsuura-Kamano S, Wada K, Iwase J, Sairyo K. Quadriceps strength to body weight ratio is a significant indicator for initiating jogging after anterior cruciate ligament reconstruction. Knee 2021; 28:240-246. [PMID: 33429149 DOI: 10.1016/j.knee.2020.12.010] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/25/2020] [Revised: 11/25/2020] [Accepted: 12/18/2020] [Indexed: 02/02/2023]
Abstract
BACKGROUND Quadriceps strength recovery after anterior cruciate ligament (ACL) reconstruction is an important criterion for progress in rehabilitation and return to sports. The purpose of this study was to determine whether quadriceps strength to body weight ratio (QS/BW) is a significant indicator for initiating jogging after ACL reconstruction. METHODS Isokinetic quadriceps strength at 60°/s was measured and a jogging trial was completed 3 months after ACL reconstruction with hamstring tendon autograft in 83 patients (36 male, 47 female; mean age, 26.6 ± 12.4 years). Based on the jogging trial results, patients were assigned to either a successful jogging group (mean velocity ≥ 9 km/h) or an unsuccessful jogging group (mean velocity < 9 km/h). The association between QS/BW and successful jogging after surgery was investigated by multivariate logistic regression analysis and the cut-off value was determined by receiver operating characteristic analysis. RESULTS Forty-four patients (53.0%) were assigned to the successful jogging group and 39 (47.0%) to the unsuccessful jogging group. QS/BW was independently associated with initiating jogging 3 months after surgery. The cut-off value of QS/BW for successful jogging was 1.45 Nm/kg (area under the curve = 0.94; sensitivity = 88.6%, specificity = 87.2%). All of the patients who initiated jogging with QS/BW of > 1.45 Nm/kg at 3 months returned to sports without recurrence or contralateral injury by 10 months after surgery. CONCLUSIONS QS/BW is a significant indicator for safely initiating jogging 3 months after ACL reconstruction. The cut-off value of QS/BW for initiating jogging was 1.45 Nm/kg.
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Affiliation(s)
- T Iwame
- Department of Orthopedics, Tokushima University Graduate School of Biomedical Sciences, Tokushima, Japan.
| | - T Matsuura
- Department of Orthopedics, Tokushima University Graduate School of Biomedical Sciences, Tokushima, Japan
| | - T Okahisa
- Department of Rehabilitation, Tokushima University Hospital, Tokushima, Japan
| | - S Katsuura-Kamano
- Department of Preventive Medicine, Tokushima University Graduate School of Biomedical Sciences, Tokushima, Japan
| | - K Wada
- Department of Orthopedics, Tokushima University Graduate School of Biomedical Sciences, Tokushima, Japan
| | - J Iwase
- Department of Orthopedics, Tokushima University Graduate School of Biomedical Sciences, Tokushima, Japan
| | - K Sairyo
- Department of Orthopedics, Tokushima University Graduate School of Biomedical Sciences, Tokushima, Japan
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9
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Soeki T, Matsumoto K, Fukuda D, Uematsu E, Matsuura T, Tobiume T, Kusunose K, Ise T, Yamaguchi K, Yagi S, Yamada H, Wakatsuki T, Sata M. Toll-like receptor 9 is a novel therapeutic target to prevent atrial fibrillation. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.0463] [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
Atrial fibrillation (AF) is the most common type of arrhythmia seen in clinical practice. Recent studies suggest that inflammation contributes to the pathogenesis of AF. On the other hand, several evidence suggests that toll-like receptor (TLR) 9 recognizes bacterial DNA, activating innate immunity, whereas it also provokes inflammation in response to fragmented DNA released from mammalian cells. Recently, we have reported that TLR 9 plays a pivotal role in the development of vascular inflammation and atherogenesis through proinflammatory activation of macrophages.
Purpose
This study aimed to assess whether TLR9 contributes to the AF arrhythmogenesis.
Methods
TLR9 deficient (TLR9−/−) and wild-type mice were infused with angiotensin II (Ang II) or vehicle via an osmotic minipump for 4 weeks. Blood pressure and body weight were measured serially. Then, we examined AF inducibility by intracardiac electrophysiological study and the inflammation-induced atrial remodeling by biochemical analysis after 4 weeks of Ang II infusion.
Results
There was no significant difference in blood pressure and pulse rate between TLR9−/− and wild-type mice both before and after Ang II infusion. Ang II-treated TLR9−/− mice showed lower incidence of AF compared with wild-type mice treated with Ang II. Genetic deletion of TLR9 significantly reduced the interstitial fibrosis in atrium of Ang II-treated mice. TLR9−/− mice also showed less mRNA expressions of inflammatory and fibrosis-related biomarkers (TNF-α, interleukin-6, TGF-β, collagen-1, collagen-3) in atrium compared with wild-type mice.
Conclusions
TLR9 might contribute to the AF arrhythmogenesis associated with atrial inflammation. TLR9 might serve as a potential therapeutic target for AF.
Funding Acknowledgement
Type of funding source: None
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Affiliation(s)
- T Soeki
- Tokushima University, Tokushima, Japan
| | | | - D Fukuda
- Tokushima University, Tokushima, Japan
| | - E Uematsu
- Tokushima University, Tokushima, Japan
| | | | - T Tobiume
- Tokushima University, Tokushima, Japan
| | | | - T Ise
- Tokushima University, Tokushima, Japan
| | | | - S Yagi
- Tokushima University, Tokushima, Japan
| | - H Yamada
- Tokushima University, Tokushima, Japan
| | | | - M Sata
- Tokushima University, Tokushima, Japan
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10
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Yoshimura T, Yamada R, Kinoshita R, Tamura H, Matsuura T, Takao S, Tamura M, Tanaka S, Nagae N, Kobashi K, Aoyama H, Shimizu S. Normal Tissue Complication Probability for Hematologic and Gastrointestinal Toxicity in Postoperative Whole Pelvic Radiotherapy for Gynecologic Malignancies using Intensity Modulated Proton Therapy with Robust Optimization. Int J Radiat Oncol Biol Phys 2020. [DOI: 10.1016/j.ijrobp.2020.07.1563] [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: 10/23/2022]
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11
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Yokokawa K, Furusaka M, Matsuura T, Hirayama S, Umegaki K. A new SOBP-formation method by superposing specially shaped Bragg curves formed by a mini-ridge filter for spot scanning in proton beam therapy. Phys Med 2019; 67:70-76. [DOI: 10.1016/j.ejmp.2019.10.036] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/12/2018] [Revised: 08/30/2019] [Accepted: 10/21/2019] [Indexed: 12/11/2022] Open
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Yamaguchi K, Wakatsuki T, Ueno R, Kawabata Y, Matsuura T, Ise T, Kusunose K, Tobiume T, Yagi S, Yamada H, Soeki T, Sata M. P2813The improvement of chronic local coagulative response according to the progress of drug eluting stent. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz748.1125] [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
We have previously reported local persistent hypercoagulation after sirolimus-eluting stent (SES) implantation by measuring local plasma prothrombin fragment 1+2 (F1+2) levels. The aim of this study is to examine chronic local coagulative response after each generation- drug eluting stent (DES) implantation.
Methods
Ninety-five patients who were treated about eight months earlier with coronary angioplasty, with no evidence of restenosis, were studied [1stgeneration durable polymer (DP)-DES {SES; Cypher®: 26pts, paclitaxel-eluting stent (PES); Taxus®:16pts}, 2ndgeneration DP-DES {everolimus-eluting stent (EES); Xience®:15pts, zotarolimus-eluting stent (ZES); Endeavor®:15pts}, and 3rdgeneration biodegradable polymer (BP)-DES {BP-biolimus-eluting stent (BES); Nobori®: 11pts and BP-SES; Ultimaster®: 12pts}]. We measured plasma levels of F1+2 sampled in coronary sinus (CS) and sinus of Valsalva (V). The transcardiac gradient (Δ) was defined as CS level minus V level.
Results
No significant differences were observed in the percent diameter stenosis among 1st, 2nd, and 3rd DES groups (12.5±15.5 vs 16.1±12.9 vs 13.1±11.9%). The ΔF1+2 was significantly lower in the 2nd and 3rd DES groups than in the 1st DES group (9.0±15.4 and 10.0±17.4 vs 27.3±23.8pmol/l, p<0.05, respectively). The ΔF1+2 was significantly lower in the BP-DES groups (BP-BES and BP-SES) than in the DP-DES groups (DP-SES, DP-PES, DP-ZES, and DP-EES) (10.0±17.4 vs 18.1±19.5pmol/l, p<0.05). The ΔF1+2 was significantly lower in the thin strut-DES groups (BP-SES, DP-ZES, and DP-EES) than in the thick strut-DES groups (DP-SES, DP-PES, and BP-BES) (8.4±15.4 vs 21.7±18.5pmol/l, p<0.05). In the BP-DES groups, the ΔF1+2 was lower in the BP-SES group than in the BP-BES group (8.0±16.1 vs 12.7±18.1pmol/l, p=0.08).
Conclusions
The improvement of chronic local coagulative response was observed according to the progress of DES. These findings might be associated with lower strut thickness and faster polymer resorption in the newer-generation DES.
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Affiliation(s)
- K Yamaguchi
- Department of Cardiovascular Medicine, Tokushima University Hospital, Tokushima, Japan
| | - T Wakatsuki
- Department of Cardiovascular Medicine, Tokushima University Hospital, Tokushima, Japan
| | - R Ueno
- Department of Cardiovascular Medicine, Tokushima University Hospital, Tokushima, Japan
| | - Y Kawabata
- Department of Cardiovascular Medicine, Tokushima University Hospital, Tokushima, Japan
| | - T Matsuura
- Department of Cardiovascular Medicine, Tokushima University Hospital, Tokushima, Japan
| | - T Ise
- Department of Cardiovascular Medicine, Tokushima University Hospital, Tokushima, Japan
| | - K Kusunose
- Department of Cardiovascular Medicine, Tokushima University Hospital, Tokushima, Japan
| | - T Tobiume
- Department of Cardiovascular Medicine, Tokushima University Hospital, Tokushima, Japan
| | - S Yagi
- Department of Cardiovascular Medicine, Tokushima University Hospital, Tokushima, Japan
| | - H Yamada
- Department of Cardiovascular Medicine, Tokushima University Hospital, Tokushima, Japan
| | - T Soeki
- Department of Cardiovascular Medicine, Tokushima University Hospital, Tokushima, Japan
| | - M Sata
- Department of Cardiovascular Medicine, Tokushima University Hospital, Tokushima, Japan
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Matsuura T, Ueno M, Watanabe H, Yasuda M, Nakamura T, Takase T, Yamaji K, Iwanaga Y, Miyazaki S. P3389Angioscopic differences in quality and quantity of neointima in patients experiencing an acute coronary syndrome treated with bare metal, first-, second-, and third generation drug-eluting stents. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz745.0265] [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
Although drug-eluting stents (DES) have substantially reduced the need for early target lesion revascularization (TLR) compared with bare-metal stents (BMS) by inhibiting neointima hyperplasia, early generation DES have been associated with an increased risk of very late stent failure (VLSF) due to stent thrombosis and TLR after 1 year. Although the incidence of VLSF is reduced with newer generation DES, VLSF remains an unresolved problem and its mechanisms are not fully explored.
Purpose
The purpose of this study was to evaluate quality and quantity of neointima and presence of thrombus by using coronary angioscopy at long-term follow-up in patients who experienced an acute coronary syndrome (ACS) treated with BMS and DES on dual antiplatelet therapy.
Methods
Coronary angioscopy was performed at 6 and 10 months after BMS and DES implantation, respectively, in ACS patients. We assessed neointimal coverage (NC) of the stent struts, yellow color grade (YG) of stented segment and the existence of thrombus. Angioscopic NC was defined as follows: grade 0= fully visible struts; grade 1= visible struts through thin neointima; grade 2= no visible struts. We determined maximum (Max-NC) and minimum coverage (Min-NC) grades and the dominant NC grades. YG was classified into 4 grades (0= white; 1= slight yellow; 2= yellow; 3= intensive yellow). The obtained findings were compared with BMS, first-generation (1st-) DES, second-generation (2nd-) DES and third-generation (3rd-) DES.
Results
A total of 212 patients were enrolled: BMS (n=127), 1st DES (n=26, sirolimus-eluting stent), 2nd-DES (n=38, permanent polymer everolimus-eluting stent), and 3rd-DES (n=21, bioresorbable polymer everolimus-eluting stent). Max-NC and Min-NC grade were significantly lower with 1st- and 2nd-DES than with BMS and 3rd-DES (Figure). The same trend was also observed in the dominant NC grades. There was a lower trend of YG in BMS and 3rd-DES than in 1st or 2nd-DES (Figure). The presence of thrombus was significantly lower in 3rd-DES in comparison with BMS, 1st-, and 2nd-DES (3rd-DES 0%, BMS 20.5%, 1st-DES 24%, 2nd-DES 13.5%, P=0.01).
Figure 1
Conclusion
Patients treated with 3rd-DES have higher NC grade, lower incidence of intrastent thrombus, and lower YG than in 1st and 2nd-DES. These findings may explain the lower incidence of VLSF associated with these newer generation stent platforms.
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Affiliation(s)
| | - M Ueno
- Kindai University, Osaka, Japan
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14
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Soeki T, Matsumoto K, Fukuda D, Uematsu E, Matsuura T, Tobiume T, Kusunose K, Ise T, Yamaguchi K, Yagi S, Yamada H, Wakatsuki T, Sata M. P2867Vildagliptin reduces inducibility of atrial fibrillation in hypertensive rats complicated with diabetes mellitus. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz748.1176] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
Atrial fibrillation (AF) is the most common arrhythmia in clinical practice, increasing the incidence of ischemic stroke. Diabetes mellitus (DM) is a predictor of stroke and thromboembolism, and it was reported to be an independent risk factor for AF. A recent study has shown that, in obese mice with diabetes, dipeptidyl peptidase-4 (DPP-4) inhibitor prevents myocardial fibrosis, active oxygen stress, weight loss and improves myocardial hypertrophy. However, the effects of DPP-4 inhibitors on atrial remodeling associated with diabetes and atrial fibrillation have not yet been clarified.
Purpose
This study was performed to assess whether a DPP-4 inhibitor (vildagliptin) ameliorates atrial remodeling in spontaneously hypertensive rats (SHR) with streptozotocin-induced diabetes.
Methods
Rats were divided into 3 groups: SHR without DM, SHR with DM treated with vehicle and SHR-DM treated with vildagliptin (3mg/kg/day; intragastric gavage). For each group, blood pressure, blood glucose level and body weight were measured serially. Cardiac function was also evaluated by echocardiography. Then, we examined AF inducibility by intracardiac electrophysiological study and the inflammation-induced atrial remodeling by biochemical analysis after 4 weeks of treatment.
Results
There was no significant difference in blood pressure and blood gucose level between vehicle and vildagliptin groups. Administration of vildagliptin significantly reduced AF inducibility compared with rats with vehicle. In DM rats treated with vehicle, rapid atrial pacing promoted the gene expression of inflammatory and fibrosis-related biomarkers (TNF-α, MCP-1, collagen-1) in atrium. Vildagliptin reduced these gene expression levels. In addition, administration of vildagliptin significantly reduced the interstitial fibrosis in atrium.
Conclusions
DPP-4 inhibitor, vildagliptin. could prevent atrial inflammation and reduce the AF inducibility in SHR complicated with DM.
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Affiliation(s)
- T Soeki
- Tokushima University, Tokushima, Japan
| | | | - D Fukuda
- Tokushima University, Tokushima, Japan
| | - E Uematsu
- Tokushima University, Tokushima, Japan
| | | | - T Tobiume
- Tokushima University, Tokushima, Japan
| | | | - T Ise
- Tokushima University, Tokushima, Japan
| | | | - S Yagi
- Tokushima University, Tokushima, Japan
| | - H Yamada
- Tokushima University, Tokushima, Japan
| | | | - M Sata
- Tokushima University, Tokushima, Japan
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15
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Khayet M, García-Payo C, Matsuura T. Superhydrophobic nanofibers electrospun by surface segregating fluorinated amphiphilic additive for membrane distillation. J Memb Sci 2019. [DOI: 10.1016/j.memsci.2019.117215] [Citation(s) in RCA: 49] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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16
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Kuroda M, Kawata M, Matsuura A, Adachi K, Hirayama Y, Matsuura T, Matsumoto A, Kodaira M, Kintsu M, Suzuki Y. P6441New continuous glucose monitoring reveals hypoglycemia risk in both diabetic and nondiabetic patients with acute myocardial infarction. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz746.1035] [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: 11/12/2022] Open
Abstract
Abstract
Background
There has been growing evidence that the glucose fluctuation is an important contributing factor to the development of coronary artery disease. However, whether large glucose fluctuation, especially hypoglycemia, may be associated with acute myocardial infarction (AMI) remains largely unknown.
Aim
As new continuous glucose monitoring (CGM) has recently become available to evaluate glucose fluctuation from immediately after an emergency visit, this study sought to investigate glucose fluctuation and the occurrence of hypoglycemia in patients with AMI.
Methods
In this prospective study, 93 consecutive patients with AMI from April 2017 to November 2018 were enrolled. Subcutaneous interstitial glucose levels were monitored from emergency room to discharge using the CGM System. Based on the CGM data, 24-h mean glucose levels, the time in hyperglycemia and hypoglycemia and the occurrence of hypoglycemia, defined as less than 70 mg/dL, were measured, and the mean amplitude of glycemic excursions (MAGE) were calculated.
Results
The majority of patients [n=57, 61% (non-DM)] did not have diabetes and 36 patients had diabetes (DM). The occurrence of hypoglycemia within 24 hours after admission was observed in 49 patients [DM: n=11 (30.6%), non-DM: n=38 (66.7%)]. MAGE within 24 hours after admission were 100±47 in DM patients and 67±20 in non-DM patients. The mean time in hypoglycemia within 24 hours after admission was 148 minutes [DM: 100±260 minutes, non-DM: 178±287 minutes]. The occurrence of hypoglycemia during a hospital stay (mean 11.5 days) was detected in 76 patients [DM: n=28 (77.8%), non-DM: n=48 (84.2%)].
Representative case of hypoglycemia
Conclusion
Not only in DM patients but also in non-DM patients with AMI, large glucose fluctuation and high incidence of hypoglycemia were observed using new CGM system. Further investigations should address the rationale for the early detection and control of glucose fluctuation for AMI patients.
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Affiliation(s)
- M Kuroda
- Akashi Medical Center, Akashi, Japan
| | - M Kawata
- Akashi Medical Center, Akashi, Japan
| | | | - K Adachi
- Akashi Medical Center, Akashi, Japan
| | | | | | | | - M Kodaira
- Akashi Medical Center, Akashi, Japan
| | - M Kintsu
- Akashi Medical Center, Akashi, Japan
| | - Y Suzuki
- Akashi Medical Center, Akashi, Japan
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17
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Katoh N, Uchinami Y, Abo D, Takao S, Inoue T, Taguchi H, Morita R, Soyama T, Hashimoto T, Onimaru R, Prayongrat A, Tamura M, Matsuura T, Shimizu S, Shirato H. Initial Clinical Outcomes of Real-Time-Image Gated Spot-Scanning Proton Beam Therapy for Hepatocellular Carcinomas. Int J Radiat Oncol Biol Phys 2019. [DOI: 10.1016/j.ijrobp.2019.06.1977] [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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18
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Ueno T, Wada M, Hoshino K, Matsuura T, Okajima H, Okuyama H. Impact of Donor Age on Outcome of Intestinal Transplantation in Japan. Transplant Proc 2018; 50:2775-2778. [PMID: 30401396 DOI: 10.1016/j.transproceed.2018.04.021] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2018] [Revised: 03/25/2018] [Accepted: 04/09/2018] [Indexed: 01/10/2023]
Abstract
BACKGROUND Donor age for intestinal transplantation (ITx) is somewhat younger than that for other solid organs. Clear criteria for adequate donors have not been established. There is a donor scarcity for ITx in Japan due to the shortage of young donors. METHODS We reviewed outcomes associated with ITx in Japan based on donor age for cadaveric and living donation. RESULTS Standardized report forms were sent to all known ITx programs, asking for information on ITxs performed between 1996 and 2016. All programs responded. Patient and graft survival estimates were obtained using the Kaplan-Meier method. Five institutions provided data on 27 grafts in 24 patients. There were 14 cadaveric and 13 living donor transplants. Median donor age for ITxs was 40 (range, 17-60) years. Graft survival at 5 years was 66% for patients >40 years old (n = 18) and 47% for those <40 years old (n = 9), not a statistically significant difference (P = .49). Graft survival at 5 years was 60% in those >50 years old (n = 5) and 57% for those <50 years old (n = 22), again not a significant difference (P = .27). CONCLUSION There is no difference in survival between for those with donor age <40 vs >40 years. Donor age for ITx can be extended from >40 to up to 50 years, which may help to mitigate the donor shortage. It will be necessary to clarify the donor criteria for ITx through accumulation of further data on ITx.
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Affiliation(s)
- T Ueno
- Department of Pediatric Surgery, Osaka University, Osaka, Japan.
| | - M Wada
- Department of Pediatric Surgery, Tohoku University, Miyagi, Japan
| | - K Hoshino
- Department of Pediatric Surgery, Keio University, Tokyo, Japan
| | - T Matsuura
- Department of Pediatric Surgery, Kyushu University, Fukuoka, Japan
| | - H Okajima
- HBP Surgery/Transplantation, Kyoto University, Kyoto, Japan
| | - H Okuyama
- Department of Pediatric Surgery, Osaka University, Osaka, Japan
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19
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Yasuda K, Takao S, Matsuo Y, Yoshimura T, Tamura M, Minatogawa H, Dekura Y, Matsuura T, Onimaru R, Shiga T, Shimizu S, Umegaki K, Shirato H. Intensity-Modulated Proton Therapy with Dose Painting based on Hypoxia Imaging for Nasopharyngeal Cancer. Int J Radiat Oncol Biol Phys 2018. [DOI: 10.1016/j.ijrobp.2018.07.1125] [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: 11/27/2022]
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20
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Shimizu S, Yoshimura T, Katoh N, Inoue T, Hashimoto T, Nishioka K, Takao S, Matsuura T, Miyamoto N, Ito Y, Umegaki K, Shirato H. Analysis of Beam Delivery Times and Dose Rates for the Treatment of Mobile Tumors Using Real Time Image Gated Spot-Scanning Proton Beam Therapy. Int J Radiat Oncol Biol Phys 2018. [DOI: 10.1016/j.ijrobp.2018.07.062] [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: 10/28/2022]
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21
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Ueno T, Wada M, Hoshino K, Matsuura T, Ida S, Okuyama H. Three-Year Prospective Follow-up of Potential Pediatric Candidate for Intestinal Transplantation. Transplant Proc 2018; 50:2779-2782. [DOI: 10.1016/j.transproceed.2018.03.067] [Citation(s) in RCA: 6] [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] [Received: 01/19/2018] [Accepted: 03/06/2018] [Indexed: 11/16/2022]
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22
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Matsuura T, Shinohara K, Hirooka Y, Tsutsui H. P1862Preeclampsia induces the acquired salt-sensitivity characteristics via the increased vasopressin secretion in postpartum. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy565.p1862] [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)
- T Matsuura
- Kyushu University Graduate School of Medical Sciences, Department of Cardiovascular Medicine, Fukuoka, Japan
| | - K Shinohara
- Kyushu University Graduate School of Medical Sciences, Department of Cardiovascular Medicine, Fukuoka, Japan
| | - Y Hirooka
- International University of Health and Welfare, Fukuoka, Japan
| | - H Tsutsui
- Kyushu University Graduate School of Medical Sciences, Department of Cardiovascular Medicine, Fukuoka, Japan
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23
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Soeki T, Uematsu E, Matsuura T, Tobiume T, Kusunose K, Ise T, Yamaguchi K, Yagi S, Fukuda D, Yamada H, Wakatsuki T, Sata M. P3732C-type natriuretic peptide improves left ventricular diastolic dysfunction and ischemia/reperfusion injury-associated ventricular arrhythmias. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy563.p3732] [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 Soeki
- University of Tokushima, Tokushima, Japan
| | - E Uematsu
- University of Tokushima, Tokushima, Japan
| | - T Matsuura
- University of Tokushima, Tokushima, Japan
| | - T Tobiume
- University of Tokushima, Tokushima, Japan
| | - K Kusunose
- University of Tokushima, Tokushima, Japan
| | - T Ise
- University of Tokushima, Tokushima, Japan
| | | | - S Yagi
- University of Tokushima, Tokushima, Japan
| | - D Fukuda
- University of Tokushima, Tokushima, Japan
| | - H Yamada
- University of Tokushima, Tokushima, Japan
| | | | - M Sata
- University of Tokushima, Tokushima, Japan
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24
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Maimaituxun G, Shimabukuro M, Fukuda D, Yagi S, Hirata Y, Iwase T, Matsuura T, Ise T, Kusunose K, Tobiume T, Yamaguchi K, Yamada H, Soeki T, Wakatsuki T, Sata M. 106Gender disparities of distribution of epicardial adipose tissue and its impact on coronary artery disease. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy564.106] [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: 11/14/2022] Open
Affiliation(s)
- G Maimaituxun
- Institute of Biomedical Sciences, Tokushima University Graduate School, Department of Cardiovascular Medicine, Tokushima City, Japan
| | - M Shimabukuro
- Fukushima Medical University, Department of Diabetes, Endocrinology and Metabolism, School of Medicine, Fukushima, Japan
| | - D Fukuda
- Institute of Biomedical Sciences, Tokushima University Graduate School, Department of Cardiovascular Medicine, Tokushima City, Japan
| | - S Yagi
- Institute of Biomedical Sciences, Tokushima University Graduate School, Department of Cardiovascular Medicine, Tokushima City, Japan
| | - Y Hirata
- Institute of Biomedical Sciences, Tokushima University Graduate School, Department of Cardiovascular Medicine, Tokushima City, Japan
| | - T Iwase
- Institute of Biomedical Sciences, Tokushima University Graduate School, Department of Cardiovascular Medicine, Tokushima City, Japan
| | - T Matsuura
- Institute of Biomedical Sciences, Tokushima University Graduate School, Department of Cardiovascular Medicine, Tokushima City, Japan
| | - T Ise
- Institute of Biomedical Sciences, Tokushima University Graduate School, Department of Cardiovascular Medicine, Tokushima City, Japan
| | - K Kusunose
- Institute of Biomedical Sciences, Tokushima University Graduate School, Department of Cardiovascular Medicine, Tokushima City, Japan
| | - T Tobiume
- Institute of Biomedical Sciences, Tokushima University Graduate School, Department of Cardiovascular Medicine, Tokushima City, Japan
| | - K Yamaguchi
- Institute of Biomedical Sciences, Tokushima University Graduate School, Department of Cardiovascular Medicine, Tokushima City, Japan
| | - H Yamada
- Institute of Biomedical Sciences, Tokushima University Graduate School, Department of Cardiovascular Medicine, Tokushima City, Japan
| | - T Soeki
- Institute of Biomedical Sciences, Tokushima University Graduate School, Department of Cardiovascular Medicine, Tokushima City, Japan
| | - T Wakatsuki
- Institute of Biomedical Sciences, Tokushima University Graduate School, Department of Cardiovascular Medicine, Tokushima City, Japan
| | - M Sata
- Institute of Biomedical Sciences, Tokushima University Graduate School, Department of Cardiovascular Medicine, Tokushima City, Japan
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25
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Ito H, Wakatsuki T, Yamaguchi K, Fukuda D, Kawabata Y, Todoroki T, Matsuura T, Ise T, Kusunose K, Tobiume T, Yagi S, Yamada H, Soeki T, Sata M. P2768Growth of vasa vasorum is associated with local inflammation around coronary plaque in fresh cadavers. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy565.p2768] [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: 11/14/2022] Open
Affiliation(s)
- H Ito
- Tokushima University Hospital, Department of Cardiovascular Medicine, Tokushima, Japan
| | - T Wakatsuki
- Tokushima University Hospital, Department of Cardiovascular Medicine, Tokushima, Japan
| | - K Yamaguchi
- Tokushima University Hospital, Department of Cardiovascular Medicine, Tokushima, Japan
| | - D Fukuda
- Tokushima University Hospital, Department of Cardiovascular Medicine, Tokushima, Japan
| | - Y Kawabata
- Tokushima University Hospital, Department of Cardiovascular Medicine, Tokushima, Japan
| | - T Todoroki
- Tokushima University Hospital, Department of Cardiovascular Medicine, Tokushima, Japan
| | - T Matsuura
- Tokushima University Hospital, Department of Cardiovascular Medicine, Tokushima, Japan
| | - T Ise
- Tokushima University Hospital, Department of Cardiovascular Medicine, Tokushima, Japan
| | - K Kusunose
- Tokushima University Hospital, Department of Cardiovascular Medicine, Tokushima, Japan
| | - T Tobiume
- Tokushima University Hospital, Department of Cardiovascular Medicine, Tokushima, Japan
| | - S Yagi
- Tokushima University Hospital, Department of Cardiovascular Medicine, Tokushima, Japan
| | - H Yamada
- Tokushima University Hospital, Department of Cardiovascular Medicine, Tokushima, Japan
| | - T Soeki
- Tokushima University Hospital, Department of Cardiovascular Medicine, Tokushima, Japan
| | - M Sata
- Tokushima University Hospital, Department of Cardiovascular Medicine, Tokushima, Japan
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26
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Okajima K, Matsuura T, Oguma Y, Takahashi H, Tatebe H, Ishikawa K. EP-1440: Extended-field chemoradiotherapy for synchronous esophageal and pharyngeal tumors: a phase one study. Radiother Oncol 2018. [DOI: 10.1016/s0167-8140(18)31749-3] [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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27
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Matsuura T, Kawada M, Hasumura S, Nagamori S, Osata T, Yamaguchp M, Hataba Y, Tanaka H, Shimizu H, Unemura Y, Nonaka K, Iwaki T, Kojima S, Aizaki H, Mizutani S, Ikenaga H. High Density Culture of Immortalized Liver Endothelial Cells in the Radial-flow Bioreactor in the Development of an Artificial Liver. Int J Artif Organs 2018. [DOI: 10.1177/039139889802100410] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Liver endothelial cells are important components of the tissue along the hepatic sinusoid. They are responsible for microcirculation in the liver and scavenger functions. It would therefore be important to include these cells in any hybrid type of artificial liver in addition to hepatocytes. However, it is difficult to culture these cells in vitro. The development of a liver endothelial cell line, which maintains the characteristics of the primary culture, would thus be of great benefit in the development of an artificial liver. In the present study we established immortalized liver endothelial cells from the liver of an H-2Kb-tsA58 transgenic mouse, which harbors the SV40 TAg gene. Hepatic sinusoidal cells isolated from H-2Kd-tsA58 mouse proliferated In the presence of γ-interferon at 33°C. Four clones were established, out of which clone M1 had the highest amounts of PGI2 production, as well as plasminogen activator activity and internalized acetylated low density lipoprotein. On culture dishes the M1 cells grew individually and spread. Sieve plates on the cell surface were not readily visible, but small pores were detected under electron microscopic observation. These results suggest that M1 clone cells originated from liver endothelial cells. Moreover it was possible to culture the immortalized liver endothelial cells in a radial-flow bioreactor for 5 days, with a maximum 6-keto prostaglandin F1α production of 25 μg per day. This suggests that immortalized liver endothelial cells and a radial-flow bioreactor can prove useful tools in the development an artificial liver.
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Affiliation(s)
- T. Matsuura
- Department of Internal Medicine, Minato-ku, Tokyo
| | - M. Kawada
- Public Health and Environmental Medicine, Minato-ku, Tokyo
| | - S. Hasumura
- Department of Internal Medicine, Minato-ku, Tokyo
| | - S. Nagamori
- Department of Internal Medicine, Minato-ku, Tokyo
| | - T. Osata
- Institute of DNA Medicine, Minato-ku, Tokyo
| | | | - Y. Hataba
- Institute of DNA Medicine, Minato-ku, Tokyo
| | - H. Tanaka
- Institute of DNA Medicine, Minato-ku, Tokyo
| | - H. Shimizu
- Public Health and Environmental Medicine, Minato-ku, Tokyo
| | | | - K. Nonaka
- Animal Facility, The Jikei University School of Medicine, Minato-ku, Tokyo
| | - T. Iwaki
- Animal Facility, The Jikei University School of Medicine, Minato-ku, Tokyo
| | - S. Kojima
- Tsukuba Life Science Center, The Institute of Physical and Chemical Research, Tsukuba
| | - H. Aizaki
- Department of Virology, National Institute of Infectious Diseases, Shinjuku-ku, Tokyo
| | - S. Mizutani
- Central Laboratories for Key Technology, KIRIN Brewery Co., Ltd, Kanagawa - Japan
| | - H. Ikenaga
- Central Laboratories for Key Technology, KIRIN Brewery Co., Ltd, Kanagawa - Japan
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28
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Naim R, Ismail AF, Matsuura T, Rudaini IA, Abdullah S. Polyetherimide hollow fiber membranes for CO2 absorption and stripping in membrane contactor application. RSC Adv 2018; 8:3556-3563. [PMID: 35542959 PMCID: PMC9077760 DOI: 10.1039/c7ra12045a] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [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: 11/02/2017] [Accepted: 01/09/2018] [Indexed: 11/30/2022] Open
Abstract
Porous asymmetric polyetherimide (PEI) hollow fiber membranes with various non-solvent additives, e.g. lithium chloride, methanol and phosphoric acid (PA) were prepared for CO2 absorption and stripping process in a membrane contractor. The PEI membranes were characterized via gas permeation, liquid entry pressure of water (LEPw), contact angle and field emission scanning electronic microscopy analysis. The CO2 absorption and stripping performance was evaluated via the membrane contactor system. Addition of non-solvent additives increased the LEPw and membrane porosity of the PEI membrane with the formation of various membrane microstructures and contact angles. Absorption test was performed at 40 °C showed that the PEI–PA membrane produced the highest absorption flux of 2.7 × 10−2 mol m−2 s−1 at 0.85 m s−1 of liquid velocity. Further testing on PEI–PA membrane was conducted on CO2 stripping at 60 °C, 70 °C to 80 °C and the results indicated that the stripping flux was lower compared to the absorption flux. Stripping tests at 80 °C produced the highest stripping flux which might due to the increase in equilibrium partial pressure of CO2 in the liquid absorbent. Modification of PEI membrane via incorporation of additive can enhanced the performance of a membrane contactor via increasing the absorption and stripping flux. Porous asymmetric polyetherimide (PEI) hollow fiber membranes with various non-solvent additives, e.g. lithium chloride, methanol and phosphoric acid (PA) were prepared for a CO2 absorption and stripping process in a membrane contractor.![]()
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Affiliation(s)
- R. Naim
- Faculty of Chemical and Natural Resources Engineering
- Universiti Malaysia Pahang
- 26300 Kuantan
- Malaysia
| | - A. F. Ismail
- Advanced Membrane Technology Research Centre (AMTEC)
- Universiti Teknologi Malaysia
- Malaysia
| | - T. Matsuura
- Department of Chemical and Biological Engineering
- University of Ottawa
- Ottawa
- Canada
| | - I. A. Rudaini
- Faculty of Chemical and Natural Resources Engineering
- Universiti Malaysia Pahang
- 26300 Kuantan
- Malaysia
| | - S. Abdullah
- Faculty of Chemical and Natural Resources Engineering
- Universiti Malaysia Pahang
- 26300 Kuantan
- Malaysia
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29
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Kajimura M, Takenouchi T, Sugiura Y, Hishiki T, Matsuura T, Suematsu M. Neuroprotective effects by hypothermia are mediated through a coordinated suppression of acetyl coa contents leading to a decrease in acetylcholine contents in neonatal hypoxia-ischemia. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.3692] [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: 11/25/2022]
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30
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Kim Y, Ozawa T, Mashiko T, Koide R, Shimazaki H, Matsuura T, Fujimoto S. Cerebrovascular complications of orbital apex inflammatory disease. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.3398] [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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31
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Ozawa T, Chiba Y, Kim Y, Mashiko T, Tada M, Koide R, Shimazaki H, Matsuura T, Fujimoto S. Trigeminal herpes zoster with a long-segmental enhanced lesion of the spinal trigeminal nucleus and tract on magnetic resonance imaging. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.3400] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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32
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Shimazaki H, Sugaya R, Yoneyama N, Mashiko T, Kim Y, Ozawa T, Koide R, Matsuura T, Fujimoto S. Spastic paraplegia with cerebral white matter changes. Three cases with different gene mutations. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.2003] [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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Matsuura T, Ueno M, Fujita K, Ikeda T, Nakamura T, Takase T, Yamaji K, Kobuke K, Iwanaga Y, Miyazaki S. P4515Predictive factors for the recovery of left ventricular function in patients with Takotsubo cardiomyopathy. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx504.p4515] [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: 11/14/2022] Open
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Matsuura T, Adachi K, Kodaira M, Hirayama Y, Matsumoto A, Kato Y, Kawata M, Matsuura A, Kamemura K, Kuroda M, Sogabe K, Takigami M, Kintsu M, Sakamoto S. P5471Cardiac resynchronization therapy in patients with narrow QRS complex: impact of left axis deviation to predict outcomes and survival. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx493.p5471] [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: 11/14/2022] Open
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35
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Kato Y, Kuroda M, Sogabe K, Kawata M, Matsuura A, Adachi K, Hirayama Y, Kamemura K, Matsuura T, Matsumoto A, Takigami M, Kodaira M, Kintsu M, Sakamoto S. P2348Long-term vessel healing response to first-generation versus second-generation drug-eluting stents in acute coronary syndrome assessed by optical coherence tomography. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx502.p2348] [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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36
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Kodaira M, Matsuura T, Adachi K, Hirayama Y, Matsumoto A, Kato Y, Kawata M, Matsuura A, Kamemura K, Kuroda M, Sogabe K, Takigami M, Kintsu M. P5478QRS axis and benefit of cardiac resynchronization therapy in heart failure patients with non-Left bundle branch block, from long term follow up. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx493.p5478] [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: 11/13/2022] Open
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Sogabe K, Kuroda M, Takigami M, Kawata M, Matsuura A, Adachi K, Hirayama Y, Kamemura K, Matsuura T, Matsumoto A, Kato Y, Kodaira M, Kintsu M, Sakamoto S. P2340Impact of optical coherence tomography findings during percutaneous coronary intervention on 2-year clinical outcomes: comparison between stable angina pectoris and acute coronary syndrome. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx502.p2340] [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: 11/13/2022] Open
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38
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Goh PS, Ismail AF, Matsuura T. Perspective and Roadmap of Energy-Efficient Desalination Integrated with Nanomaterials. Separation & Purification Reviews 2017. [DOI: 10.1080/15422119.2017.1335214] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- P. S. Goh
- Advanced Membrane Technology Research Centre, Faculty of Chemical and Energy Engineering, Universiti Teknologi Malaysia, Johor, Malaysia
| | - A. F. Ismail
- Advanced Membrane Technology Research Centre, Faculty of Chemical and Energy Engineering, Universiti Teknologi Malaysia, Johor, Malaysia
| | - T. Matsuura
- Department of Chemical and Biological Engineering, University of Ottawa, Ottawa, Ontario, Canada
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Emadzadeh D, Ghanbari M, Lau W, Rahbari-Sisakht M, Rana D, Matsuura T, Kruczek B, Ismail A. Surface modification of thin film composite membrane by nanoporous titanate nanoparticles for improving combined organic and inorganic antifouling properties. Materials Science and Engineering: C 2017; 75:463-470. [DOI: 10.1016/j.msec.2017.02.079] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/18/2016] [Revised: 12/04/2016] [Accepted: 02/15/2017] [Indexed: 11/28/2022]
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Shujaa Addin A, Akizuki T, Hoshi S, Matsuura T, Ikawa T, Fukuba S, Matsui M, Tabata Y, Izumi Y. Biodegradable gelatin/beta-tricalcium phosphate sponges incorporating recombinant human fibroblast growth factor-2 for treatment of recession-type defects: A split-mouth study in dogs. J Periodontal Res 2017; 52:863-871. [PMID: 28345758 DOI: 10.1111/jre.12456] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/14/2017] [Indexed: 02/04/2023]
Abstract
BACKGROUND AND OBJECTIVE Tissue engineering by using recombinant human (rh) growth factor technology may offer a promising therapeutic approach for treatment of gingival recession. Fibroblast growth factor-2 (FGF-2) has shown the ability to promote periodontal regeneration. Gelatin/beta-tricalcium phosphate (gelatin/β-TCP) sponges have been developed to control the release of growth factors. The present study evaluated the periodontal regenerative efficacy of rhFGF-2 by comparing gelatin/β-TCP sponges incorporated with rhFGF-2 to the scaffolds alone in artificially created recession-type defects in dogs. MATERIAL AND METHODS Critically sized buccal gingival recession defects were surgically created on maxillary canine teeth of five dogs. In each animal, defects were randomized to receive either a gelatin/β-TCP sponge soaked with rhFGF-2 (gelatin/β-TCP/rhFGF-2) or phosphate-buffered saline (gelatin/β-TCP). Eight weeks after surgery, biopsy specimens were obtained and subjected to microcomputed tomography and histological analyses. RESULTS Complete root coverage was achieved in both groups. Microcomputed tomography revealed significantly greater new bone volume in the gelatin/β-TCP/rhFGF-2 group. Histologically, both groups achieved periodontal regeneration; however, gelatin/β-TCP/rhFGF-2 sites exhibited more tissue regeneration, characterized by significantly larger amounts of new cementum and new bone. Gelatin/β-TCP sites featured increased long junctional epithelium and connective tissue attachment. In the gelatin/β-TCP/rhFGF-2 sites, new bone exhibited many haversian canals and circumferential lamellae as well as remarkably thick periosteum with blood vascularization and hypercellularity. CONCLUSION Within the limitations of this study, rhFGF-2 in gelatin/β-TCP sponges exhibits an increased potential to support periodontal wound healing/regeneration in canine recession-type defects.
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Affiliation(s)
- A Shujaa Addin
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - T Akizuki
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - S Hoshi
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - T Matsuura
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - T Ikawa
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - S Fukuba
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - M Matsui
- Polymer Chemistry Division, Chemical Resources Laboratory, Tokyo Institute of Technology, Kanagawa, Japan
| | - Y Tabata
- Department of Biomaterials, Field of Tissue Engineering, Institute for Frontier Medical Sciences, Kyoto University, Kyoto, Japan
| | - Y Izumi
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
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Hasegava T, Ota H, Matsuura T, Seiji K, Mugikura S, Motoi F. Endovascular Treatment of Hepatic Artery Pseudoaneurysm After Pancreaticoduodenectomy: Risk Factors Associated With Mortality and Complications. J Vasc Surg 2017. [DOI: 10.1016/j.jvs.2017.01.013] [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: 11/26/2022]
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42
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Takeuchi Y, Kimura H, Matsuura T, Yonezawa T, Sano Y. Distribution of Serotonergic Neurons in the Central Nervous System: A Peroxidase-Antiperoxidase Study with Anti-Serotonin Antibodies. J Histochem Cytochem 2016; 31:181-185. [DOI: 10.1177/31.1a_suppl.6338102] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Distribution of serotonin (5-HT) neurons in the central nervous system (CNS) of various vertebrates was investigated with a highly sensitive immunohistochemical technique. Antibodies were raised in rabbits against an antigen prepared by coupling 5-HT to bovine thyroglobulin. 5-HT neurons were found to be distributed more widely and densely than has been heretofore described. Serotonergic neuronal somata are organized according to certain basic patterns, but there are interspecific differences with regard to the distribution of 5-HT fibers. The processes of 5-HT neurons form a dense plexus by ramification and anastomosis in almost all areas of the CNS, including the ventricular surfaces. In the light of our observations, Golgi's reticular theory may have to be revised.
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Affiliation(s)
- Y. Takeuchi
- Department of Anatomy (Y.T.; T.M.; Y.S.) and Department of Pathology (T.Y.), Kyoto Prefectural University of Medicine, Kyoto, Japan, and Department of Anatomy (H.K.), Shiga University of Medical Science, Otsu, Shiga, Japan (OA 82–276S4)
| | - H. Kimura
- Department of Anatomy (Y.T.; T.M.; Y.S.) and Department of Pathology (T.Y.), Kyoto Prefectural University of Medicine, Kyoto, Japan, and Department of Anatomy (H.K.), Shiga University of Medical Science, Otsu, Shiga, Japan (OA 82–276S4)
| | - T. Matsuura
- Department of Anatomy (Y.T.; T.M.; Y.S.) and Department of Pathology (T.Y.), Kyoto Prefectural University of Medicine, Kyoto, Japan, and Department of Anatomy (H.K.), Shiga University of Medical Science, Otsu, Shiga, Japan (OA 82–276S4)
| | - T. Yonezawa
- Department of Anatomy (Y.T.; T.M.; Y.S.) and Department of Pathology (T.Y.), Kyoto Prefectural University of Medicine, Kyoto, Japan, and Department of Anatomy (H.K.), Shiga University of Medical Science, Otsu, Shiga, Japan (OA 82–276S4)
| | - Y. Sano
- Department of Anatomy (Y.T.; T.M.; Y.S.) and Department of Pathology (T.Y.), Kyoto Prefectural University of Medicine, Kyoto, Japan, and Department of Anatomy (H.K.), Shiga University of Medical Science, Otsu, Shiga, Japan (OA 82–276S4)
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Rezaei-DashtArzhandi M, Ismail AF, Goh PS, Wan Azelee I, Abbasgholipourghadim M, Ur Rehman G, Matsuura T. Zeolite ZSM5-Filled PVDF Hollow Fiber Mixed Matrix Membranes for Efficient Carbon Dioxide Removal via Membrane Contactor. Ind Eng Chem Res 2016. [DOI: 10.1021/acs.iecr.6b03117] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- M. Rezaei-DashtArzhandi
- Advanced
Membrane Technology Research Centre (AMTEC), Universiti Teknologi Malaysia, 81310 Skudai, Johor, Malaysia
| | - A. F. Ismail
- Advanced
Membrane Technology Research Centre (AMTEC), Universiti Teknologi Malaysia, 81310 Skudai, Johor, Malaysia
| | - P. S. Goh
- Advanced
Membrane Technology Research Centre (AMTEC), Universiti Teknologi Malaysia, 81310 Skudai, Johor, Malaysia
| | - I. Wan Azelee
- Advanced
Membrane Technology Research Centre (AMTEC), Universiti Teknologi Malaysia, 81310 Skudai, Johor, Malaysia
| | - M. Abbasgholipourghadim
- Department
of Applied Mechanics, Mechanical Engineering, Universiti Teknologi Malaysia, 81310 Skudai, Johor, Malaysia
| | - Ghani Ur Rehman
- Advanced
Membrane Technology Research Centre (AMTEC), Universiti Teknologi Malaysia, 81310 Skudai, Johor, Malaysia
| | - T. Matsuura
- Advanced
Membrane Technology Research Centre (AMTEC), Universiti Teknologi Malaysia, 81310 Skudai, Johor, Malaysia
- Industrial
Membrane Research Institute, Department of Chemical and Biological
Engineering, University of Ottawa, 161 Louis Pasteur Street, Ottawa, Ontario K1N 6N5, Canada
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Bidsorkhi HC, Riazi H, Emadzadeh D, Ghanbari M, Matsuura T, Lau WJ, Ismail AF. Preparation and characterization of a novel highly hydrophilic and antifouling polysulfone/nanoporous TiO2 nanocomposite membrane. Nanotechnology 2016; 27:415706. [PMID: 27607307 DOI: 10.1088/0957-4484/27/41/415706] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
In this research, novel ultrafiltration nanocomposite membranes were prepared by incorporating self-synthesized nanoporous titanium dioxide (NTiO2) nanoparticles into polysulfone. The surface of the nanoparticle was treated with a silane-based modifier to improve its distribution in the host polymer. Atomic-force microscopy, scanning electron microscopy, Fourier transform infrared spectroscopy, Brunauer-Emmett-Teller, transmission electron microscopy, energy-dispersive x-ray spectroscopy, porosity and contact angle tests were conducted to characterize the properties of the particles as well as the fabricated nanocomposite membranes. The effects of the nanoparticle incorporation were evaluated by conducting ultrafiltration experiments. It was reported that the membrane pure water flux was increased with increasing NTiO2 loading owing to the high porosity of the nanoparticles embedded and/or formation of enlarged pores upon addition of them. The antifouling capacity of the membranes was also tested by ultrafiltration of bovine serum albumin fouling solution. It was found that both water flux and antifouling capacity tended to reach desired level if the NTiO2 added was at optimized loading.
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Affiliation(s)
- H Cheraghi Bidsorkhi
- Advanced Membrane Technology Research Centre (AMTEC), Universiti Teknologi Malaysia, 81310 Skudai, Johor, Malaysia. Research Center for Nanotechnology Applied to Engineering of Sapienza (CNIS), Sapienza University of Rome, Rome, Italy
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Shimizu S, Katoh N, Hashimoto T, Nishioka K, Yoshimura T, Takao S, Matsuura T, Miyamoto N, Umegaki K, Shirato H. Analysis of Durations and Dose Rates for Treatment of Moving Liver Tumors Using Real-Time Image Gated Spot Scanning Proton Beam Therapy. Int J Radiat Oncol Biol Phys 2016. [DOI: 10.1016/j.ijrobp.2016.06.526] [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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Oguma Y, Matsuura T, Ishikawa K, Tatebe H, Fukuda K, Nishikawa T, Takahashi H, Okajima K. Internal Movement of the Prostate During Intensity Modulated Radiation Therapy Detected by Using Cone Beam Computed Tomography Considering the Prostate and Bladder Volumes and Rectal Diameter. Int J Radiat Oncol Biol Phys 2016. [DOI: 10.1016/j.ijrobp.2016.06.1314] [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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Saito R, So M, Motojima Y, Matsuura T, Yoshimura M, Hashimoto H, Yamamoto Y, Kusuhara K, Ueta Y. Activation of Nesfatin-1-Containing Neurones in the Hypothalamus and Brainstem by Peripheral Administration of Anorectic Hormones and Suppression of Feeding via Central Nesfatin-1 in Rats. J Neuroendocrinol 2016; 28. [PMID: 27203571 DOI: 10.1111/jne.12400] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/14/2015] [Revised: 05/02/2016] [Accepted: 05/17/2016] [Indexed: 12/22/2022]
Abstract
Peripheral anorectic hormones, such as glucagon-like peptide (GLP)-1, cholecystokinin (CCK)-8 and leptin, suppress food intake. The newly-identified anorectic neuropeptide, nesfatin-1, is synthesised in both peripheral tissues and the central nervous system, particularly by various nuclei in the hypothalamus and brainstem. In the present study, we examined the effects of i.p. administration of GLP-1 and CCK-8 and co-administrations of GLP-1 and leptin at subthreshold doses as confirmed by measurement of food intake, on nesfatin-1-immunoreactive (-IR) neurones in the hypothalamus and brainstem of rats by Fos immunohistochemistry. Intraperitoneal administration of GLP-1 (100 μg/kg) caused significant increases in the number of nesfatin-1-IR neurones expressing Fos-immunoreactivity in the supraoptic nucleus (SON), the area postrema (AP) and the nucleus tractus solitarii (NTS) but not in the paraventricular nucleus (PVN), the arcuate nucleus (ARC) or the lateral hypothalamic area (LHA). On the other hand, i.p. administration of CCK-8 (50 μg/kg) resulted in marked increases in the number of nesfatin-1-IR neurones expressing Fos-immunoreactivity in the SON, PVN, AP and NTS but not in the ARC or LHA. No differences in the percentage of nesfatin-1-IR neurones expressing Fos-immunoreactivity in the nuclei of the hypothalamus and brainstem were observed between rats treated with saline, GLP-1 (33 μg/kg) or leptin. However, co-administration of GLP-1 (33 μg/kg) and leptin resulted in significant increases in the number of nesfatin-1-IR neurones expressing Fos-immunoreactivity in the AP and the NTS. Furthermore, decreased food intake induced by GLP-1, CCK-8 and leptin was attenuated significantly by pretreatment with i.c.v. administration of antisense nesfatin-1. These results indicate that nesfatin-1-expressing neurones in the brainstem may play an important role in sensing peripheral levels of GLP-1 and leptin in addition to CCK-8, and also suppress food intake in rats.
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Affiliation(s)
- R Saito
- Department of Physiology, School of Medicine, University of Occupational and Environmental Health, Kitakyushu, Japan
- Department of Pediatrics, School of Medicine, University of Occupational and Environmental Health, Kitakyushu, Japan
| | - M So
- Department of Physiology, School of Medicine, University of Occupational and Environmental Health, Kitakyushu, Japan
| | - Y Motojima
- Department of Physiology, School of Medicine, University of Occupational and Environmental Health, Kitakyushu, Japan
| | - T Matsuura
- Department of Physiology, School of Medicine, University of Occupational and Environmental Health, Kitakyushu, Japan
| | - M Yoshimura
- Department of Physiology, School of Medicine, University of Occupational and Environmental Health, Kitakyushu, Japan
| | - H Hashimoto
- Department of Physiology, School of Medicine, University of Occupational and Environmental Health, Kitakyushu, Japan
| | - Y Yamamoto
- Department of Pediatrics, School of Medicine, University of Occupational and Environmental Health, Kitakyushu, Japan
| | - K Kusuhara
- Department of Pediatrics, School of Medicine, University of Occupational and Environmental Health, Kitakyushu, Japan
| | - Y Ueta
- Department of Physiology, School of Medicine, University of Occupational and Environmental Health, Kitakyushu, Japan
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Emadzadeh D, Ghanbari M, Lau WJ, Rahbari-Sisakht M, Matsuura T, Ismail AF, Kruczek B. Solvothermal synthesis of nanoporous TiO2: the impact on thin-film composite membranes for engineered osmosis application. Nanotechnology 2016; 27:345702. [PMID: 27405424 DOI: 10.1088/0957-4484/27/34/345702] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
In the current study, the impact of self-synthesized nanoporous titanium oxide (NT) on the morphology, performance and fouling of a polyamide (PA) thin-film composite (TFC) membrane was investigated when the membrane was applied for engineering osmosis (EO). The nanoporous structure and the spindle-like shape of NT were revealed through transmission electron microscopy (TEM), while the AATPS modification of NT was verified by attenuated total reflectance Fourier transform infrared (ATR-FTIR) spectroscopy. The results of x-ray photoelectron spectroscopy (XPS) and x-ray diffraction (XRD) confirmed the presence of modified NT (mNT) in the PA dense active layer of the TFC membrane. The outgrowth of the 'leaf-like' structure, upon mNT loading, at the surface of the PA layer was observed by field-emission scanning electron microscopy (FESEM) and atomic force microscopy (AFM). The TFC membrane prepared with 0.05 wt% mNT loading in the organic phase showed the water flux of 26.4 l m(-2) h(-1) when tested in the forward osmosis (FO) mode using 0.5M and 10 mM NaCl solution as the draw and feed solution, respectively. Moreover, the TFC-mNT membrane also demonstrated an intensified antifouling property against organic foulant during FO application and it was possible to retrieve the initial water flux almost completely with a simple water-rinsing process.
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Affiliation(s)
- D Emadzadeh
- Industrial Membrane Research Laboratory, Department of Chemical and Biological Engineering, University of Ottawa, 161 Louis Pasteur St, Ottawa, Canada ON K1N 6N5. Department of Chemical Engineering, Gachsaran Branch, Islamic Azad University, Gachsaran, Iran
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Matsuura T, Takao S, Matsuzaki Y, Fujii Y, Fujii T, Maeda K, Ueda H, Koyano H, Umegaki K, Shirato H. SU-F-T-131: No Increase in Biological Effectiveness Through Collimator Scattered Low Energy Protons. Med Phys 2016. [DOI: 10.1118/1.4956267] [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: 11/07/2022] Open
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Peng H, Kanehira T, Takao S, Matsuura T, Umegaki K, Shirato H, Xing L. SU-F-J-213: Feasibility Study of Using a Dual-Energy Cone Beam CT (DECBCT) in Proton Therapy Treatment Planning. Med Phys 2016. [DOI: 10.1118/1.4956121] [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: 11/07/2022] Open
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