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Watanabe S, Urikura A, Ohashi K, Kitera N, Tsuchiya T, Kasai H, Kawai T, Hiwatashi A. Artifact reduction in low and ultra-low dose chest computed tomography for patients with pacemaker: A phantom study. Radiography (Lond) 2024; 30:770-775. [PMID: 38460224 DOI: 10.1016/j.radi.2024.02.019] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2023] [Revised: 02/06/2024] [Accepted: 02/23/2024] [Indexed: 03/11/2024]
Abstract
INTRODUCTION Implanted pacemakers (PM) would decrease the detection of lung nodules in chest computed tomography (CT) due to the metal artifact. This study aimed to explore the computer-aided diagnosis (CAD) detectability of pulmonary nodules for the patients implanted with PMs in low- and ultra-low-dose chest CT screening. METHODS Four different sizes of artificial nodules were placed in an anthropomorphic chest phantom with two alternative diameters utilized. A commercially available PM was placed on the surface of the left chest wall of the phantom. The image acquisitions were performed with 120 kV and 150 kV with a dedicated selective photon shield made of tin filter (Sn150 kV) at low- and ultra-low- radiation doses (1.0 and 0.5 mGy of volume CT dose index), and reconstructed with and without Iterative Metal Artifact Reduction (iMAR, Siemens Healthineers, Erlangen, Germany). The relative artifact index (AIr) was calculated as an index of metal artifacts, and the nodule detectability was evaluated with a CAD system. RESULTS Sn150 kV reduced AIr in all acquisitions when comparing 120 kV and Sn150 kV. Although PM reduced the detectability of nodules, Sn150 kV showed higher detectability compared to 120 kV. The use of iMAR showed inconsistent results in nodule detectability. CONCLUSION Sn150 kV reduced PM-induced metal artifacts and improved nodule detectability with CAD compared to 120 kV acquisition in many conditions including low and ultra-low doses and large phantoms, but iMAR did not improve the detectability. IMPLICATIONS FOR PRACTICE Based on the results of the current phantom study, low and ultra-low dose with Sn150 kV acquisition reduced PM-induced metal artifacts and improved nodule detectability.
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Affiliation(s)
- S Watanabe
- Department of Radiology, Nagoya City University Hospital, 1 Kawasumi, Mizuho-cho, Mizuho-ku, Nagoya, Aichi 467-0001, Japan.
| | - A Urikura
- Department of Radiological Technology, Radiological Diagnosis, National Cancer Center Hospital, 5-1-1 Tsukiji, Chuo-ku, Tokyo, 104-0045, Japan.
| | - K Ohashi
- Department of Radiology, Nagoya City University Midori Municipal Hospital, 1-77 Shiomigaoka, Midori-ku, Nagoya, Aichi, 458-0037, Japan; Department of Radiology, Nagoya City University Graduate School of Medical Sciences, 1 Kawasumi, Mizuho-cho, Mizuho-ku, Nagoya, Aichi 467-0001, Japan.
| | - N Kitera
- Department of Radiology, Nagoya City University Hospital, 1 Kawasumi, Mizuho-cho, Mizuho-ku, Nagoya, Aichi 467-0001, Japan.
| | - T Tsuchiya
- Department of Radiology, Nagoya City University Hospital, 1 Kawasumi, Mizuho-cho, Mizuho-ku, Nagoya, Aichi 467-0001, Japan.
| | - H Kasai
- Department of Radiology, Nagoya City University Hospital, 1 Kawasumi, Mizuho-cho, Mizuho-ku, Nagoya, Aichi 467-0001, Japan.
| | - T Kawai
- Department of Radiology, Nagoya City University Midori Municipal Hospital, 1-77 Shiomigaoka, Midori-ku, Nagoya, Aichi, 458-0037, Japan; Department of Radiology, Nagoya City University Graduate School of Medical Sciences, 1 Kawasumi, Mizuho-cho, Mizuho-ku, Nagoya, Aichi 467-0001, Japan.
| | - A Hiwatashi
- Department of Radiology, Nagoya City University Graduate School of Medical Sciences, 1 Kawasumi, Mizuho-cho, Mizuho-ku, Nagoya, Aichi 467-0001, Japan.
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Inui S, Tomita N, Takaoka T, Ueda Y, Ohira S, Tsuchiya T, Miyazaki M, Nishio T, Koizumi M, Konishi K. Dosimetric Comparison of Automated Non-Coplanar Volumetric-Modulated Arc Therapy and Intensity-Modulated Proton Therapy in Angiosarcoma of the Scalp. Int J Radiat Oncol Biol Phys 2023; 117:e675. [PMID: 37785989 DOI: 10.1016/j.ijrobp.2023.06.2128] [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) Angiosarcoma of the scalp (AS) is a rare tumor and has often been treated by total scalp irradiation (TSI). TSI is a challenging technique because of the target close to the organs at risks (OARs), located in the skin surface, and helmet-shape of the target. We performed the dosimetric comparison of automated non-coplanar volumetric-modulated arc therapy (HA) and intensity-modulated proton therapy (IMPT) in TSI for AS. MATERIALS/METHODS A planning study was performed on 20 patients with AS. The clinical target volume (CTV) 1 and CTV2 were defined as gross tumor volume with margin and entire scalp, respectively. For HA, planning target volume (PTV) 1 and PTV2 were defined as CTV1 and CTV2 with 5-mm margins, respectively. For IMPT, robust optimization was utilized which accounted for a 5-mm setup and a 3.5% range uncertainty and dose was prescribed to CTV1 robust and CTV2 robust. The prescription doses were 70 Gy and 56 Gy in 35 fractions to PTV1 (CTV1 robust) and PTV2 (CTV2 robust), respectively, using the simultaneous integrated boost technique. The HA plan was performed using a 6-MV photon beam machine and a 1-cm thick virtual bolus. The HA plan included three half non-coplanar and one full coplanar arc fields. The HA plan used collimator angles of 15°, 60°, 15°, and 120° in the beam with couch rotations of 0°, 45°, 90°, and 315°, respectively. The IMPT plan was performed using a compact proton beam machine dedicated to pencil beam scanning. The IMPT plan used gantry angles of 70°, 150°, 70°, 150°, and 30° in the beam with couch rotations of 0°, 0°, 180°, 180°, and 270°, respectively. The IMPT plan was optimized assuming a relative biological effectiveness of 1.1. The dose distribution and dosimetric parameters for each plan were evaluated. RESULTS All plans met the goals within the acceptable range in target volume coverage, conformity, and homogeneity. Table shows the dosimetric parameters of OARs in HA and IMPT plans. The doses receiving 0.1 cc of the volume for hippocampus, optic passway, eye, and lens in the IMPT plan were significantly lower than those in the HA plan. The IMPT plan showed a significant reduction in the percentage of brain volume receiving at least 5 Gy (V5 Gy) compared to the HA plan, while the HA plan showed a significant reduction of V10 Gy - V60 Gy and mean brain dose compared to the IMPT plan. The HA plan provided a shorter beam-on time (184 ± 9 s) than did the IMPT plan (446 ± 49 s). CONCLUSION The HA and IMPT plans demonstrated different strengths with respect to OARs sparing.
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Affiliation(s)
- S Inui
- Department of Radiation Oncology, Osaka International Cancer Institute, Osaka, Japan; Department of Medical Physics and Engineering, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - N Tomita
- Department of Radiology, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - T Takaoka
- Department of Radiology, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Y Ueda
- Department of Radiation Oncology, Osaka International Cancer Institute, Osaka, Japan
| | - S Ohira
- Department of Radiation Oncology, Osaka International Cancer Institute, Osaka, Japan
| | - T Tsuchiya
- Department of Radiology, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - M Miyazaki
- Department of Radiation Oncology, Osaka International Cancer Institute, Osaka, Japan
| | - T Nishio
- Department of Medical Physics and Engineering, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - M Koizumi
- Department of Medical Physics and Engineering, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - K Konishi
- Department of Radiation Oncology, Osaka International Cancer Institute, Osaka, Japan
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Yamabe K, Arakawa Y, Shoji M, Miyamoto K, Tsuchiya T, Minoura K, Akeda Y, Tomono K, Onda M. Enhancement ofAcinetobacterbaumanniibiofilm growth by cephem antibiotics via enrichment of protein and extracellular DNAin thebiofilm matrices. J Appl Microbiol 2022; 133:2002-2013. [PMID: 35818769 PMCID: PMC9539989 DOI: 10.1111/jam.15712] [Citation(s) in RCA: 2] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Revised: 06/03/2022] [Accepted: 07/06/2022] [Indexed: 11/30/2022]
Abstract
AIMS To determine the effects of subinhibitory concentrations of eight cephem and carbapenem antibiotics on thebiofilm formation ofAcinetobacterbaumanniicells and examine itseffect on pre-established biofilms. METHODS AND RESULTS Effects of antibiotics on biofilm formation were assayed using microtiter plates with polystyrene peg-lids.Cefmetazole, ceftriaxone, ceftazidime, and cefpirome increased the biomass of pre-established biofilms on pegs in the range of their sub-minimum inhibitory concentrations, whereas none increased biofilm formation by planktonic cells. Carbapenems had a negative effect.The constituents of antibiotic-induced biofilms were analyzed. Ceftriaxoneor ceftazidimetreatment markedly increased the matrix constituent amounts in the biofilms (carbohydrate, 2.7-fold; protein, 8.9-12.7-fold; lipid, 3.3-3.6-fold; DNA, 9.1-12.2-fold; outer membrane vesicles, 2.7-3.8-fold; and viable cells,6.8-10.1-fold).The antibiotic-enhanced biofilmshad increased outer membrane protein A and were resistant to the anti-biofilm effect of azithromycin. CONCLUSIONS Some cephems increased the biomass of pre-established biofilms in the ranges of their sub-minimum inhibitory concentrations.The antibiotic-enhanced biofilmspossessed more virulent characteristics than normal biofilms. SIGNIFICANCE AND IMPACT OF THE STUDY Incomplete administration of certain cephems followingbiofilm-related Ac.baumannii infectionscould adversely cause exacerbated and chronic clinical results.
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Affiliation(s)
- K Yamabe
- Department of Social and Administrative Pharmacy, Osaka Medical and Pharmaceutical University, Osaka, Japan
| | - Y Arakawa
- Department of Social and Administrative Pharmacy, Osaka Medical and Pharmaceutical University, Osaka, Japan
| | - M Shoji
- Department of Social and Administrative Pharmacy, Osaka Medical and Pharmaceutical University, Osaka, Japan
| | - K Miyamoto
- Department of Microbiology and Infection Control, Osaka Medical and Pharmaceutical University, Osaka, Japan
| | - T Tsuchiya
- Department of Microbiology and Infection Control, Osaka Medical and Pharmaceutical University, Osaka, Japan
| | - K Minoura
- Joint Research Center, Osaka Medical and Pharmaceutical University, Osaka, Japan
| | - Y Akeda
- National Institute of Infectious Diseases, Tokyo, Japan
| | - K Tomono
- Osaka Institute of Public Health, Osaka, Japan
| | - M Onda
- Department of Social and Administrative Pharmacy, Osaka Medical and Pharmaceutical University, Osaka, Japan
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Yoshida S, Oya S, Obata H, Fujisawa N, Tsuchiya T, Nakamura T, Indo M, Shojima M, Matsui T. Carotid endarterectomy restores decreased vision due to chronic ocular ischemia. Acta Neurochir (Wien) 2021; 163:1767-1775. [PMID: 33026531 DOI: 10.1007/s00701-020-04603-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2020] [Accepted: 09/30/2020] [Indexed: 10/23/2022]
Abstract
BACKGROUND The therapeutic effect of carotid endarterectomy (CEA) on visual disturbance caused by chronic ocular ischemia due to carotid artery stenosis has not been validated. This prospective observational study aims to investigate whether CEA is associated with an increase in ocular blood flow (OBF) and postoperative visual improvement. METHODS In total, 41 patients with carotid artery stenosis treated by CEA between March 2015 and September 2018 were enrolled in this study. OBF was evaluated by laser speckle flowgraphy, which can measure the mean blur ratio (MBR) which is well correlated to the absolute retinal blood flow. Visual acuity was assessed before and after CEA by subjective improvement and objective visual assessment using CSV-1000, an instrument used to test contrast sensitivity. RESULTS OBF increased after CEA on the operated side (mean MBR 33.5 vs 38.2, p < 0.001) but not on the non-operated side (mean MBR 37.8 vs 37.5, p = 0.50). After CEA, 23 patients (56.1%) reported subjective visual improvement on the operated side. The mean CSV-1000 score among the patients with increased OBF after CEA (5.44 vs 5.88, p = 0.04) but not among those without increased OBF (5.48 vs 5.95, p = 0.09). The mean CSV-1000 scores increased significantly after CEA in 18 patients with decreased vision and decreased OBF (4.51 vs 5.37, p < 0.001), but not in the 23 patients without those (6.19 vs 6.31, p = 0.6). CONCLUSION CEA may successfully reverse visual dysfunction caused by chronic ocular ischemia due to carotid artery stenosis by increasing OBF.
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Tsuchiya T, Fukui Y, Izumi R, Numano K, Zeida M. Effects of oligomeric proanthocyanidins (OPCs) of red wine to improve skin whitening and moisturizing in healthy women - a placebo-controlled randomized double-blind parallel group comparative study. Eur Rev Med Pharmacol Sci 2021; 24:1571-1584. [PMID: 32096209 DOI: 10.26355/eurrev_202002_20215] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE This study was undertaken to evaluate the effects of red wine from grapes oligomeric procyanidins (OPCs) intake on skin color and skin moisture in Japanese healthy women. The purpose of this study was to improve skin condition, with the primary endpoint set to improve sunburn by ultraviolet (UV) and the secondary endpoint set to improve dryness. PATIENTS AND METHODS A randomized, placebo-controlled, double-blind, parallel-group study was conducted on 100 subjects (30 to 59 years of age). They were administered a test beverage, including 200 mg of the red wine OPCs (the test beverage group) or a placebo beverage (the control beverage group) once a day for 12 weeks. The properties of facial skin were measured at 0 (start value), 4th, 8th, and 12th week of the test period. RESULTS After 12 weeks of administration, the pigmentation scores and melanin index values of the OPC group were significantly reduced from the start value and were lower than the control group (p<0.05). In addition, the OPC group showed a significant increase in water content of the stratum corneum compared to the start value, while that of the control group significantly decreased. CONCLUSIONS The red wine OPCs showed the effects of skin whitening and moisturizing, and it is suggested that OPCs may improve the skin condition of healthy women.
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Affiliation(s)
- T Tsuchiya
- Suntory Global Innovation Center Ltd., Kyoto, Japan.
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Yoshida S, Oya S, Obata H, Fujisawa N, Tsuchiya T, Nakamura T. Carotid Endarterectomy Restores Decreased Vision Due to Chronic Ocular Ischemia. J Vasc Surg 2021. [DOI: 10.1016/j.jvs.2020.11.004] [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: 10/22/2022]
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Fujisawa N, Oya S, Yoshida S, Tsuchiya T, Nakamura T, Indo M, Matsui T. A Prospective Randomized Study on the Preventive Effect of Japanese Herbal Kampo Medicine Goreisan for Recurrence of Chronic Subdural Hematoma. Neurol Med Chir (Tokyo) 2020; 61:12-20. [PMID: 33208583 PMCID: PMC7812313 DOI: 10.2176/nmc.oa.2020-0287] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
Although the recurrence of chronic subdural hematoma (CSDH) after surgical treatment significantly affects the patients' quality of life, the recurrence rate has not improved in decades. Goreisan, a Japanese herbal Kampo medicine, promotes the hydragogue effect and has been empirically used in the treatment of CSDH in Japan. We conducted a prospective randomized study to investigate whether Goreisan treatment decreases the recurrence rate of CSDH. Between March 2013 and December 2018, a total of 224 patients who underwent initial burr hole surgery for CSDH were randomly assigned to receive Goreisan for 3 months (Group G) or no medication (Group N). The primary endpoint was symptomatic recurrence within 3 months postoperatively, and the secondary endpoint was complications, including the adverse effects of Goreisan. Of 224 randomized patients, 208 were included in the final analysis (104 in Group G and 104 in Group N). The overall recurrence rate was 9.1% (19/208). The recurrence rate of Group G was lower than that of Group N (5.8% vs 12.5%, P = 0.09), but the difference was not statistically significant. However, a significant preventive effect of Goreisan was found in 145 patients with high-risk computed tomography (CT) features, namely, homogeneous and separated types (5.6% vs 17.6%, P = 0.04). Although the present study did not prove the beneficial effect of Goreisan treatment, it suggested the importance of selecting patients with an increased risk of recurrence. A subset of patients whose hematoma showed homogeneous and separated patterns on CT image might benefit from Goreisan treatment.
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Affiliation(s)
- Naoaki Fujisawa
- Department of Neurosurgery, Saitama Medical Center, Saitama Medical University
| | - Soichi Oya
- Department of Neurosurgery, Saitama Medical Center, Saitama Medical University
| | - Shinsuke Yoshida
- Department of Neurosurgery, Saitama Medical Center, Saitama Medical University
| | - Tsukasa Tsuchiya
- Department of Neurosurgery, Saitama Medical Center, Saitama Medical University
| | - Takumi Nakamura
- Department of Neurosurgery, Saitama Medical Center, Saitama Medical University
| | - Masahiro Indo
- Department of Neurosurgery, Saitama Medical Center, Saitama Medical University
| | - Toru Matsui
- Department of Neurosurgery, Saitama Medical Center, Saitama Medical University
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Noguchi Y, Toda Y, Esaki H, Matsuyama T, Tachi T, Tsuchiya T, Teramachi H. Association between dipeptidyl peptidase-4 inhibitors and autoimmune disorders: Data mining of the spontaneous reporting system in Japan. Pharmazie 2020; 74:305-309. [PMID: 31109402 DOI: 10.1691/ph.2019.8972] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
The main objective of this study is to conduct a disproportionality analysis of adverse events in the Japan Adverse Event Report (JADER) database and evaluate the risk of the DPP-4 inhibitor induced autoimmune disorder, the secondary objective is risk assessment of sex difference and age difference. The proportional reporting ratio (PRR) of frequency-based statistics and Bayesian estimates of the information components (IC) were calculated as a measure of signal detection. Sex difference and age difference were evaluated using signal score calculated from the PRR and the Chi-square. In patients taking DPP-4 inhibitors, 94 reports of autoimmune disorders were detected with both signals; PRR: 4.09, chi-square: 158.26 and IC: 1.66, 95 % confidence interval: 1.32-2.00). For other antidiabetic drugs, no signals were detected. The signal of males was PRR: 4.53, chi-square: 110.91 and signal score: 6.22, the signal of female was PRR: 3.53, chi-square: 47.65 and signal score: 5.12. About age difference, the signal scores were 6.71 for patients over 60 years and 0.56 for patients under 60 years old. This study suggests that the DPP-4 inhibitors, unlike other antidiabetic drugs, were associated with autoimmune disorders. Signals of the DPP-4 inhibitors induced autoimmune disorders were detected in both male and female, but no sex difference was observed, but age difference was observed. Especially attention should be paid to patients over 60 years old.
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Nishioka D, Tsuchiya T, Namiki W, Takayanagi M, Kawamura K, Fujita T, Yukawa R, Horiba K, Kumigashira H, Higuchi T. Surface Proton Conduction of Sm-Doped CeO 2-δ Thin Film Preferentially Grown on Al 2O 3 (0001). Nanoscale Res Lett 2020; 15:42. [PMID: 32065313 PMCID: PMC7026374 DOI: 10.1186/s11671-020-3267-5] [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] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/08/2019] [Accepted: 01/22/2020] [Indexed: 06/10/2023]
Abstract
Sm-doped CeO2-δ (Ce0.9Sm0.1O2-δ; SDC) thin films were prepared on Al2O3 (0001) substrates by radio frequency magnetron sputtering. The prepared thin films were preferentially grown along the [111] direction, with the spacing of the (111) plane (d111) expanded by 2.6% to compensate for a lattice mismatch against the substrate. The wet-annealed SDC thin film, with the reduced d111 value, exhibited surface protonic conduction in the low-temperature region below 100 °C. The O1s photoemission spectrum exhibits H2O and OH- peaks on the SDC surface. These results indicate the presence of physisorbed water layers and the generation of protons on the SDC (111) surface with oxygen vacancies. The protons generated on the SDC surface were conducted through a physisorbed water layer by the Grotthuss mechanism.
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Affiliation(s)
- D Nishioka
- Department of Applied Physics, Tokyo University of Science, Katsushika, Tokyo, 125-8585, Japan.
| | - T Tsuchiya
- International Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science (NIMS), Tsukuba, Ibaraki, 305-0044, Japan
| | - W Namiki
- Department of Applied Physics, Tokyo University of Science, Katsushika, Tokyo, 125-8585, Japan
| | - M Takayanagi
- Department of Applied Physics, Tokyo University of Science, Katsushika, Tokyo, 125-8585, Japan
| | - K Kawamura
- Department of Applied Physics, Tokyo University of Science, Katsushika, Tokyo, 125-8585, Japan
| | - T Fujita
- Department of Applied Physics, Tokyo University of Science, Katsushika, Tokyo, 125-8585, Japan
| | - R Yukawa
- Photon Factory, High Energy Accelerator Organization (KEK), Tsukuba, Ibaraki, 305-0801, Japan
| | - K Horiba
- Photon Factory, High Energy Accelerator Organization (KEK), Tsukuba, Ibaraki, 305-0801, Japan
| | - H Kumigashira
- Photon Factory, High Energy Accelerator Organization (KEK), Tsukuba, Ibaraki, 305-0801, Japan
- Institute of Multidisciplinary Research for Advanced Materials (IMRAM), Tohoku University, Sendai, 980-8577, Japan
| | - T Higuchi
- Department of Applied Physics, Tokyo University of Science, Katsushika, Tokyo, 125-8585, Japan
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Taniguchi D, Matsumoto K, Machino R, Takeoka Y, Elgalad A, Taura Y, Oyama S, Tetsuo T, Moriyama M, Takagi K, Kunizaki M, Tsuchiya T, Miyazaki T, Hatachi G, Matsuo N, Nakayama K, Nagayasu T. Human lung microvascular endothelial cells as potential alternatives to human umbilical vein endothelial cells in bio-3D-printed trachea-like structures. Tissue Cell 2019; 63:101321. [PMID: 32223949 DOI: 10.1016/j.tice.2019.101321] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2019] [Revised: 11/29/2019] [Accepted: 12/02/2019] [Indexed: 11/28/2022]
Abstract
BACKGROUND We have been trying to produce scaffold-free structures for airway regeneration using a bio-3D-printer with spheroids, to avoid scaffold-associated risks such as infection. Previous studies have shown that human umbilical vein endothelial cells (HUVECs) play an important role in such structures, but HUVECs cannot be isolated from adult humans. The aim of this study was to identify alternatives to HUVECs for use in scaffold-free structures. METHODS Three types of structure were compared, made of chondrocytes and mesenchymal stem cells with HUVECs, human lung microvascular endothelial cells (HMVEC-Ls), and induced pluripotent stem cell (iPSC)-derived endothelial cells. RESULTS No significant difference in tensile strength was observed between the three groups. Histologically, some small capillary-like tube formations comprising CD31-positive cells were observed in all groups. The number and diameters of such formations were significantly lower in the iPSC-derived endothelial cell group than in other groups. Glycosaminoglycan content was significantly lower in the iPSC-derived endothelial cell group than in the HUVEC group, while no significant difference was observed between the HUVEC and HMVEC-L groups. CONCLUSIONS HMVEC-Ls can replace HUVECs as a cell source for scaffold-free trachea-like structures. However, some limitations were associated with iPSC-derived endothelial cells.
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Affiliation(s)
- D Taniguchi
- Department of Surgical Oncology, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1 Sakamoto, Nagasaki, 852-8501, Japan; Medical-engineering Hybrid Professional Development Program, Nagasaki University, 1-7-1 Sakamoto, Nagasaki, 852-8501, Japan
| | - K Matsumoto
- Department of Surgical Oncology, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1 Sakamoto, Nagasaki, 852-8501, Japan; Medical-engineering Hybrid Professional Development Program, Nagasaki University, 1-7-1 Sakamoto, Nagasaki, 852-8501, Japan.
| | - R Machino
- Department of Surgical Oncology, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1 Sakamoto, Nagasaki, 852-8501, Japan
| | - Y Takeoka
- Department of Surgical Oncology, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1 Sakamoto, Nagasaki, 852-8501, Japan; Medical-engineering Hybrid Professional Development Program, Nagasaki University, 1-7-1 Sakamoto, Nagasaki, 852-8501, Japan
| | - A Elgalad
- Department of Surgical Oncology, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1 Sakamoto, Nagasaki, 852-8501, Japan; Medical-engineering Hybrid Professional Development Program, Nagasaki University, 1-7-1 Sakamoto, Nagasaki, 852-8501, Japan
| | - Y Taura
- Department of Surgical Oncology, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1 Sakamoto, Nagasaki, 852-8501, Japan
| | - S Oyama
- Department of Surgical Oncology, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1 Sakamoto, Nagasaki, 852-8501, Japan; Medical-engineering Hybrid Professional Development Program, Nagasaki University, 1-7-1 Sakamoto, Nagasaki, 852-8501, Japan
| | - T Tetsuo
- Department of Surgical Oncology, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1 Sakamoto, Nagasaki, 852-8501, Japan; Medical-engineering Hybrid Professional Development Program, Nagasaki University, 1-7-1 Sakamoto, Nagasaki, 852-8501, Japan
| | - M Moriyama
- Department of Surgical Oncology, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1 Sakamoto, Nagasaki, 852-8501, Japan; Medical-engineering Hybrid Professional Development Program, Nagasaki University, 1-7-1 Sakamoto, Nagasaki, 852-8501, Japan
| | - K Takagi
- Medical-engineering Hybrid Professional Development Program, Nagasaki University, 1-7-1 Sakamoto, Nagasaki, 852-8501, Japan
| | - M Kunizaki
- Department of Surgical Oncology, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1 Sakamoto, Nagasaki, 852-8501, Japan
| | - T Tsuchiya
- Department of Surgical Oncology, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1 Sakamoto, Nagasaki, 852-8501, Japan
| | - T Miyazaki
- Department of Surgical Oncology, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1 Sakamoto, Nagasaki, 852-8501, Japan
| | - G Hatachi
- Department of Surgical Oncology, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1 Sakamoto, Nagasaki, 852-8501, Japan; Medical-engineering Hybrid Professional Development Program, Nagasaki University, 1-7-1 Sakamoto, Nagasaki, 852-8501, Japan
| | - N Matsuo
- Department of Surgical Oncology, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1 Sakamoto, Nagasaki, 852-8501, Japan; Medical-engineering Hybrid Professional Development Program, Nagasaki University, 1-7-1 Sakamoto, Nagasaki, 852-8501, Japan
| | - K Nakayama
- Department of Regenerative Medicine and Biomedical Engineering Faculty of Medicine, Saga University, 1 Honjocho, Saga, 840-8502, Japan
| | - T Nagayasu
- Department of Surgical Oncology, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1 Sakamoto, Nagasaki, 852-8501, Japan; Medical-engineering Hybrid Professional Development Program, Nagasaki University, 1-7-1 Sakamoto, Nagasaki, 852-8501, Japan
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11
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Hanakita S, Oya S, Tsuchiya T, Shojima M, Matsui T. Extirpation of a Ruptured Anterior Spinal Artery Aneurysm Accompanied by Dural Arteriovenous Fistula at the Craniovertebral Junction via a Posterolateral Approach: The Management of Extradural Venous Congestion. J Neurol Surg B Skull Base 2019; 80:S344-S345. [PMID: 31750055 PMCID: PMC6864108 DOI: 10.1055/s-0039-1697981] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2019] [Accepted: 08/25/2019] [Indexed: 11/30/2022] Open
Abstract
Objective
This study was aimed to discuss how to control extradural venous congestion with an increased pressure in cases of arteriovenous shunt disease of the craniovertebral junction.
Design
The study is presented through an operative video.
Results
A 77-year-old patient with subarachnoid hemorrhage had a dural arteriovenous fistula located at the C1–C2 level. Left vertebral angiography showed a fistula between the left C2 radiculomeningeal muscular artery and perivertebral plexus. Furthermore, right vertebral angiography showed a ruptured aneurysm at the aberrant branch of the anterior spinal artery originating from the contralateral vertebral artery (VA), possibly formed because of the concurrently increased pressure of the perimedullary veins. Aneurysm extirpation was planned through a posterolateral approach. To reduce venous bleeding during the approach, preoperative embolization of the radiculomeningeal muscular artery was performed. During surgery, the suboccipital triangle was exposed following layer-by-layer dissection of the suboccipital muscles (
Figs. 1
and
2
). Subperiosteal dissection of the paravertebral plexus surrounding the VA around the C1 lamina was effective to avoid venous bleeding. A bloodless operative field was achieved, and key anatomical structures, such as the C2 nerve root, feeder, and V3 portion of the left VA, were clearly identified. With a sufficient amount of lateral exposure, the ruptured anterior spinal artery aneurysm was successfully extirpated with bipolar coagulation. The patient was discharged with no neurologic deficit.
Conclusion
Controlling extradural venous congestion is essential to obtain a clear operative field in cases of arteriovenous shunt disease at the craniovertebral junction.
The link to the video can be found at:
https://youtu.be/fCT69WtAQbo
.
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Affiliation(s)
- Shunya Hanakita
- Department of Neurosurgery, Saitama Medical Center/University, Saitama Japan
| | - Soichi Oya
- Department of Neurosurgery, Saitama Medical Center/University, Saitama Japan
| | - Tsukasa Tsuchiya
- Department of Neurosurgery, Saitama Medical Center/University, Saitama Japan
| | - Masaaki Shojima
- Department of Neurosurgery, Saitama Medical Center/University, Saitama Japan
| | - Toru Matsui
- Department of Neurosurgery, Saitama Medical Center/University, Saitama Japan
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12
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Tsuchiya T, Kume T, Akiyama K, Yoshitsugu K, Fukaya M, Enami T, Tatara R, Shino M, Ikeda T. The prophylactic effect of 0.1% fluorometholone eye drops on eye disorders caused by high-dose cytarabine. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz434.024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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13
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Noguchi Y, Nagasawa H, Tachi T, Tsuchiya T, Teramachi H. Signal detection of oral drug-induced dementia in chronic kidney disease patients using association rule mining and Bayesian confidence propagation neural network. Pharmazie 2019; 74:570-574. [PMID: 31484600 DOI: 10.1691/ph.2019.9426] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 09/29/2022]
Abstract
Among the mechanisms responsible for cognitive dysfunction in chronic kidney disease (CKD) are albuminuria and oxidative stress. However, there may be other causes not yet identified. In fact, the full relevance of CKD patient drug use and its relationship to dementia has hardly been barely investigated. We identified drugs affecting cognitive function in CKD patients by analyzing the spontaneous reporting system in Japan using Association rule mining (ARM) and Bayesian confidence propagation neural network (BCPNN). The signal detection criterion used were as follows: case ≥ 3, lift > 1, conviction > 1 (ARM) and IC025 >0 (BCPNN). Drugs with more than 20 cases were valaciclovir (lift: 11.21, conviction: 1.28, IC025: 3.12), amantadine (lift: 19.69, conviction: 1.68, IC025: 3.05), nalfurafine (lift: 8.35, conviction: 1.19, IC025: 2.18), pregabalin (lift: 6.05, conviction: 1.12, IC025: 1.78), and acyclovir (lift: 5.89, conviction: 1.12, IC025: 1.68). This study is the first report to use a large-scale medical database to identify drugs related to oral drugs-induced dementia in CKD.
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14
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Oya S, Yoshida S, Tsuchiya T, Fujisawa N, Mukasa A, Nakatomi H, Saito N, Matsui T. Intraoperative quantification of meningioma cell proliferation potential using rapid flow cytometry reveals intratumoral heterogeneity. Cancer Med 2019; 8:2793-2801. [PMID: 30993844 PMCID: PMC6558493 DOI: 10.1002/cam4.2178] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2019] [Revised: 03/07/2019] [Accepted: 04/05/2019] [Indexed: 12/12/2022] Open
Abstract
Background Standard sampling methods to evaluate the proliferative ability of meningioma have not been established. Methods This prospective study was conducted to evaluate the effectiveness of intraoperative rapid flow cytometry (iFC) using raw samples for the quantitative assessment of proliferative ability in meningioma cells and to investigate intratumoral heterogeneity. Proliferation index (PI) was defined as the ratio of aneuploid cells with an abnormal number of chromosomes to the total cells. Results From 50 patients, 118 specimens were analyzed. There was a statistically significant correlation between the postoperative MIB‐1 labeling index (LI) and PI (R = 0.59, P < 0.0001). A higher PI was correlated with a higher annual growth rate (AGR, cm3/y) (R = 0.50, P = 0.0002, 26 patients). AGR showed a correlation with the intratumoral distribution of PI. PI was the highest at the center or the peripheral section of the tumor in tumors with high AGR, whereas it was highest at the dural attachment in tumors with low AGR (P = 0.039, n = 20). Pial feeders were more frequently observed when PI was high in the center or in the peripheral section (P = 0.006, n = 37). Conclusions Rapid iFC may thus become a substitute for MIB‐1 LI. Intratumoral heterogeneity of cellular proliferative potential exists in meningiomas and is related to tumor biological characteristics such as AGR and development of pial feeders. This observation underscores the importance of standardization in the sampling method to accurately estimate the risk of meningioma recurrence.
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Affiliation(s)
- Soichi Oya
- Department of NeurosurgerySaitama Medical Center, Saitama Medical UniversitySaitamaJapan
| | - Shinsuke Yoshida
- Department of NeurosurgerySaitama Medical Center, Saitama Medical UniversitySaitamaJapan
| | - Tsukasa Tsuchiya
- Department of NeurosurgerySaitama Medical Center, Saitama Medical UniversitySaitamaJapan
| | - Naoaki Fujisawa
- Department of NeurosurgerySaitama Medical Center, Saitama Medical UniversitySaitamaJapan
| | - Akitake Mukasa
- Department of NeurosurgeryGraduate School of Medicine, The University of TokyoTokyoJapan
| | - Hirofumi Nakatomi
- Department of NeurosurgeryGraduate School of Medicine, The University of TokyoTokyoJapan
| | - Nobuhito Saito
- Department of NeurosurgeryGraduate School of Medicine, The University of TokyoTokyoJapan
| | - Toru Matsui
- Department of NeurosurgerySaitama Medical Center, Saitama Medical UniversitySaitamaJapan
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15
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Fukushima Y, Someya M, Nakata K, Hori M, Kitagawa M, Hasegawa T, Tsuchiya T, Gocho T, Ikeda H, Hirohashi Y, Torigoe T, Sugita S, Hasegawa T, Himi T, Sakata K. Influence of PD-L1 Expression in Immune Cells on the Response to Radiation Therapy in Patients with Oropharyngeal Squamous Cell Carcinoma. Int J Radiat Oncol Biol Phys 2018. [DOI: 10.1016/j.ijrobp.2018.07.837] [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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16
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Nakata K, Hanai T, Take Y, Osada T, Tsuchiya T, Shima D, Fujimoto Y. Disease-modifying effects of COX-2 selective inhibitors and non-selective NSAIDs in osteoarthritis: a systematic review. Osteoarthritis Cartilage 2018; 26:1263-1273. [PMID: 29890262 DOI: 10.1016/j.joca.2018.05.021] [Citation(s) in RCA: 53] [Impact Index Per Article: 8.8] [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: 12/19/2017] [Revised: 05/16/2018] [Accepted: 05/20/2018] [Indexed: 02/02/2023]
Abstract
Osteoarthritis (OA) is a potentially disabling disease whose progression is dependent on several risk factors. OA management usually involves the use of non-steroidal anti-inflammatory drugs (NSAIDs) that are the primary pharmacological treatments of choice. However, NSAIDs have often been associated with unwanted side effects. Cyclooxygenase (COX)-2 specific inhibitors, such as celecoxib, have been successfully used as an alternative in the past for OA treatment and have demonstrated fewer side effects. While abundant data are available for the clinical efficacy of drugs used for OA treatment, little is known about the disease-modifying effects of these agents. A previous review published by Zweers et al. (2010) assessed the available literature between 1990 and 2010 on the disease-modifying effects of celecoxib. In the present review, we aimed to update the existing evidence and identify evolving concepts relating to the disease-modifying effects of not just celecoxib, but also other NSAIDs. We conducted a review of the literature published from 2010 to 2016 dealing with the effects, especially disease-modifying effects, of NSAIDs on cartilage, synovium, and bone in OA patients. Our results show that celecoxib was the most commonly used drug in papers that presented data on disease-modifying effects of NSAIDs. Further, these effects appeared to be mediated through the regulation of prostaglandins, cytokines, and direct changes to tissues. Additional studies should be carried out to assess the disease-modifying properties of NSAIDs in greater detail.
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Affiliation(s)
- K Nakata
- Medicine for Sports and Performing Arts, Department of Health and Sports Science, Osaka University Graduate School of Medicine, 2-2, Yamadaoka, Suita, Osaka 565-0871 Japan.
| | - T Hanai
- Medicine for Sports and Performing Arts, Department of Health and Sports Science, Osaka University Graduate School of Medicine, 2-2, Yamadaoka, Suita, Osaka 565-0871 Japan
| | - Y Take
- Medicine for Sports and Performing Arts, Department of Health and Sports Science, Osaka University Graduate School of Medicine, 2-2, Yamadaoka, Suita, Osaka 565-0871 Japan
| | - T Osada
- Pfizer Japan Inc., Shinjuku Bunka Quint Bldg. 3-22-7, Yoyogi, Shibuya-ku, Tokyo 151-8589 Japan
| | - T Tsuchiya
- Pfizer Japan Inc., Shinjuku Bunka Quint Bldg. 3-22-7, Yoyogi, Shibuya-ku, Tokyo 151-8589 Japan
| | - D Shima
- Pfizer Japan Inc., Shinjuku Bunka Quint Bldg. 3-22-7, Yoyogi, Shibuya-ku, Tokyo 151-8589 Japan
| | - Y Fujimoto
- Pfizer Japan Inc., Shinjuku Bunka Quint Bldg. 3-22-7, Yoyogi, Shibuya-ku, Tokyo 151-8589 Japan
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17
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Kawanishi H, Tsuchiya T, Nishiki M, Sugiyama M, Ezaki H. Removal of Protein-Bound Substance in Hepatic Failure: Polyetherurethane Sheet Embedded with Powdered Charcoal (UPC). Int J Artif Organs 2018. [DOI: 10.1177/039139888400700611] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Affiliation(s)
- H. Kawanishi
- Department of Surgery, Hroshima University School of Medicine
| | | | - M. Nishiki
- Department of Surgery, Hroshima University School of Medicine
| | - M. Sugiyama
- Japan Medical Supply Co. Ltd. Hiroshima, Japan
| | - H. Ezaki
- Department of Surgery, Hroshima University School of Medicine
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18
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Li X, Kanegasaki S, Jin F, Deng Y, Kim JR, Chang HW, Tsuchiya T. Simultaneous induction of HSP70 expression, and degranulation, in IgE/Ag-stimulated or extracellular HSP70-stimulated mast cells. Allergy 2018; 73:361-368. [PMID: 28857181 DOI: 10.1111/all.13296] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/23/2017] [Indexed: 12/26/2022]
Abstract
BACKGROUND In mast cells, induction of HSP70 expression during antigen stimulation has not been reported. METHODS Mouse bone marrow-derived mast cells (BMMC) were stimulated with IgE/Ag or HSP70. Induction of HSP70 expression and signaling protein phosphorylation were evaluated by immunoblotting. RESULTS HSP70 expression is induced in BMMC at an early stage of IgE/Ag-dependent stimulation, some of which is released from the cells in a granule-associated form. Induction of HSP70 expression was also observed with an IgE/Ag-stimulated human basophilic cell line, indicating that the phenomenon is not restricted to mouse BMMC. The induction of HSP70 expression, and its release, followed a similar time course to that of degranulation. Released HSP70 seems to be responsible for degranulation and production of eicosanoids, at least in part, because a neutralizing anti-HSP70 antibody mitigated these activities and because exogenous HSP70 not only induced immediate degranulation followed by autocrine HSP70 expression but also enhanced degranulation in IgE/Ag-stimulated BMMC. Extracellular HSP70 was found to induce phosphorylation of linker for activation of T cells (LAT) and a series of downstream signaling molecules in BMMC. We further found that Fyn, Lyn, and spleen tyrosine kinase (Syk), which are known to concern LAT phosphorylation in IgE/Ag-stimulated BMMC, were not phosphorylated in HSP70-stimulated BMMC, whereas lymphocyte-specific protein tyrosine kinase (Lck) was phosphorylated. CONCLUSION FcεRI stimulation in BMMC and basophils induces HSP70 expression and its release. Extracellular HSP70 induces degranulation and mediator release via phosphorylation of LAT.
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Affiliation(s)
- X. Li
- College of Pharmacy; Yeungnam University; Gyeongsan Korea
| | - S. Kanegasaki
- YU-ECI Research Center for Medical Science; Yeungnam University; Gyeongsan Korea
- College of Medicine; Yeungnam University; Daegu Korea
| | - F. Jin
- College of Pharmacy; Yeungnam University; Gyeongsan Korea
| | - Y. Deng
- College of Pharmacy; Yeungnam University; Gyeongsan Korea
| | - J.-R. Kim
- College of Medicine; Yeungnam University; Daegu Korea
| | - H. W. Chang
- College of Pharmacy; Yeungnam University; Gyeongsan Korea
| | - T. Tsuchiya
- YU-ECI Research Center for Medical Science; Yeungnam University; Gyeongsan Korea
- College of Medicine; Yeungnam University; Daegu Korea
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19
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Fukuda M, Okumura M, Arimori K, Takahira A, Mori M, Nakamura D, Shimada M, Taniguchi H, Gyotoku H, Senju H, Ikeda T, Yamaguchi H, Nakatomi K, Tsuchiya T, Mukae H, Ashizawa K. P1.03-015 The Relationship between the UGT1A1*27 and UGT1A1*7 Genetic Polymorphisms and Irinotecan-Related Toxicities in Patients with Lung Cancer. J Thorac Oncol 2017. [DOI: 10.1016/j.jtho.2017.09.819] [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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20
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Tomoshige K, Minzhe G, Tsuchiya T, Fukazawa T, Naomoto Y, Nagayasu T, Maeda Y. P1.02-014 TGFalpha Promotes Growth of Lung Tumors Carrying EGFR Mutation but not KRAS Mutation in Transgenic Mouse Models in Vivo. J Thorac Oncol 2017. [DOI: 10.1016/j.jtho.2017.09.746] [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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21
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Sakata K, Ozawa T, Okuyama Y, Haraguchi R, Tsuchiya T, Horie M, Ashihara T. P2649Not all non-paroxysmal atrial fibrillation drivers are included in complex fractionated electrogram area or low-voltage area: ExTRa Mapping project. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx502.p2649] [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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22
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Sakata K, Ozawa T, Okuyama Y, Haraguchi R, Tsuchiya T, Horie M, Ashihara T. P1718Non-paroxysmal atrial fibrillation wave dynamics were determined by age rather than echocardiographic measurements and BNP: A clinical study using the ExTRa Mapping system. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx502.p1718] [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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23
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Soda M, Fujitani M, Michiuchi R, Shibayama A, Kanamori K, Yoshikuni S, Ohno Y, Tsuchiya T, Suzuki A, Horie K, Deguchi T, Itoh Y, Kitaichi K. Association Between Tacrolimus Pharmacokinetics and Cytochrome P450 3A5 and Multidrug Resistance Protein 1 Exon 21 Polymorphisms. Transplant Proc 2017; 49:1492-1498. [DOI: 10.1016/j.transproceed.2017.03.093] [Citation(s) in RCA: 4] [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: 09/06/2016] [Revised: 03/07/2017] [Accepted: 03/30/2017] [Indexed: 10/19/2022]
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24
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Sakuma J, Fukuda Y, Tsuchiya T, Maemura T, Katagiri Y, Nakata M, Morita M. Availability of Hysteroscopy-Guided Resection of Endometrial Polyp. J Minim Invasive Gynecol 2016. [DOI: 10.1016/j.jmig.2016.08.662] [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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25
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Tsuchiya T, Katagiri Y, Hukuda Y, Sakuma J, Kitamura M, Maemura T, Morita M. Devising of Surgery in Total Laparoscopic Hysterectomy More Than 500g Uterus. J Minim Invasive Gynecol 2016. [DOI: 10.1016/j.jmig.2016.08.709] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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26
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Fukuda Y, Tsuchiya T, Sakuma J, Katakura M, Kitamura M, Maemura T, Katagiri Y, Morita M. Torsion of Myoma in a Woman with Mayer-Rokitansky-Kuster-Hauser Syndrome: Case Report. J Minim Invasive Gynecol 2016. [DOI: 10.1016/j.jmig.2016.08.732] [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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Sugie C, Shibamoto Y, Hashimoto S, Tsuchiya T, Matsuo M, Kawai T, Iwata H. Biological Effects of a Radiation Hormesis Sheet Emitting Very Low-Dose-Rate γ Rays. Int J Radiat Oncol Biol Phys 2016. [DOI: 10.1016/j.ijrobp.2016.06.2034] [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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28
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Isama K, Tsuchiya T. Effects of interaction between metal salts on proliferation and differentiation of osteoblasts. Toxicol Lett 2016. [DOI: 10.1016/j.toxlet.2016.06.2038] [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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29
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Tsuchiya T, Oya S, Mori H, Matsui T. Multiple hemorrhagic intraparenchymal tumors presenting with fatal intracranial hypertension: A rare manifestation of systemic epithelioid hemangioendothelioma. Surg Neurol Int 2015; 6:156. [PMID: 26539307 PMCID: PMC4604639 DOI: 10.4103/2152-7806.166799] [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] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2015] [Accepted: 07/30/2015] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND Epithelioid hemangioendotheliomas (EHE) is an extremely rare tumor that can arise not only intracranially but also systemically. Its radiological characteristics and the mechanism underlying the multiple organ involvement in EHE are poorly understood. CASE DESCRIPTION A 24-year-old woman with a 7-month history of coughing and blood-stained sputum complained of visual disturbance in the right eye that had persisted for 1-month. Magnetic resonance (MR) imaging revealed multiple intraparenchymal masses with low-intensity on MR susceptibility-weighted images with minimal enhancement with gadolinium. Systemic computed tomography revealed multiple nodules in both lungs and the liver. Because her neurological status rapidly deteriorated, brain biopsy of the right frontal mass was performed. The pathological diagnosis was EHE. Over the following 3 months, the patient gradually developed disturbance of consciousness. She died at 4 months after admission because of significant intracranial hypertension. CONCLUSION Although intracranial EHEs are extremely rare, they should be included in the differential diagnoses of multiple small-sized masses with low-intensity on MR susceptibility-weighted images. We also emphasize that the systemic involvement of this tumor was more compatible with multicentric development than metastasis.
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Affiliation(s)
- Tsukasa Tsuchiya
- Department of Neurosurgery, Saitama Medical Center, Saitama Medical University, Saitama, Japan
| | - Soichi Oya
- Department of Neurosurgery, Saitama Medical Center, Saitama Medical University, Saitama, Japan
| | - Harushi Mori
- Department of Radiology, Graduate School of Medicine and Faculty of Medicine, University of Tokyo, Tokyo, Japan
| | - Toru Matsui
- Department of Neurosurgery, Saitama Medical Center, Saitama Medical University, Saitama, Japan
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Ishii Y, Kuroda K, Takasu S, Yokoo Y, Tsuchiya T, Kijima A, Nohmi T, Ogawa K, Umemura T. Contribution of cell proliferation possibly due to inactivation of protein phosphatase 2A to gene mutations induced by estragole. Toxicol Lett 2015. [DOI: 10.1016/j.toxlet.2015.08.719] [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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31
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Kubo T, Fujino Y, Matsuda S, Nakamura T, Kunimoto M, Kadowaki K, Tabata H, Tsuchiya T, Odoi H, Oyama I. Risk of Hypertension and Impaired Glucose Tolerance among Two and Three Shift Workers. Int J Epidemiol 2015. [DOI: 10.1093/ije/dyv097.030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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32
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Takasu S, Ishii Y, Kijima A, Yokoo Y, Tsuchiya T, Nohmi T, Nishikawa A, Umemura T. The effects of a high-fat diet on in vivo mutagenicity induced by heterocyclic amines in the colon of gpt delta rats. Toxicol Lett 2015. [DOI: 10.1016/j.toxlet.2015.08.708] [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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33
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Sadahiro S, Tsuchiya T, Sasaki K, Kondo K, Katsumata K, Nishimura G, Kakeji Y, Baba H, Sato S, Koda K, Yamaguchi Y, Morita T, Matsuoka J, Usuki H, Hamada C, Kodaira S. Randomized phase III trial of treatment duration for oral uracil and tegafur plus leucovorin as adjuvant chemotherapy for patients with stage IIB/III colon cancer: final results of JFMC33-0502. Ann Oncol 2015; 26:2274-80. [PMID: 26347106 PMCID: PMC4621030 DOI: 10.1093/annonc/mdv358] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2015] [Accepted: 08/17/2015] [Indexed: 01/18/2023] Open
Abstract
While adjuvant chemotherapy is preferable for colon cancer, treatment duration is controversial. This phase III trial is investigated optimal duration of adjuvant chemotherapy for Stage IIB/III colon cancer. Eighteen-month treatment with UFT/LV did not improve DFS compared with 6-month UFT/LV treatment. This study suggests that 6 months treatment duration is enough for Stage IIB/III colon cancer. Background While adjuvant chemotherapy is preferable for high-risk colon cancer, treatment duration is controversial. Oral uracil and tegafur (UFT)/leucovorin (LV) is widely used as a standard adjuvant chemotherapy for colon cancer in Japan. We conducted a phase III trial to investigate the optimal duration of adjuvant chemotherapy for stage IIB/III colon cancer. Patients and methods Patients with curatively resected stage IIB/III colon cancer were eligible for enrollment in this trial. Patients were registered within 6 weeks after surgery and were randomly assigned to receive UFT/LV for 28 of 35 days for 6 months in the control group or for 5 consecutive days per week for 18 months in the study group. The primary end point was the disease-free survival (DFS), and the secondary end points were overall survival (OS) and safety. Result A total of 1071 patients were registered from 233 centers. A statistically significant difference in DFS was not observed between the study group and the control group; the 5-year DFS was 69% in the study group and 69% in the control group. The 5-year OS was 85% in the study group and 85% in the control group. Conclusion Eighteen-month treatment with UFT/LV did not improve DFS or OS compared with 6-month UFT/LV treatment in patients with stage IIB/III colon cancer. The important finding from this study is that not 18 months but 6 months of treatment is enough for postoperative UFT/LV for stage IIB/III colon cancer. Clinical trial number UMIN-CTR C000000245.
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Affiliation(s)
- S Sadahiro
- Department of Surgery, Tokai University, Isehara
| | - T Tsuchiya
- Department of Surgery, Sendai City Medical Center, Sendai
| | - K Sasaki
- Department of Surgery, Otaru Ekisaikai Hospital, Otaru
| | - K Kondo
- Department of Surgery, National Hospital Organization Nagoya Medical Hospital, Nagoya
| | - K Katsumata
- Third Department of Surgery, Tokyo Medical University, Tokyo
| | - G Nishimura
- Department of Surgery, Japanese Red Cross Kanazawa Hospital, Ishikawa
| | - Y Kakeji
- Division of Gastrointestinal Surgery, Department of Surgery, Graduate School of Medicine, Kobe University, Kobe
| | - H Baba
- Department of Gastroenterological Surgery, Kumamoto University, Kumamoto
| | - S Sato
- Department of Surgery, National Hospital Organization Himeji Medical Center, Himeji
| | - K Koda
- Department of Surgery, Teikyo University Chiba Medical Center, Ichihara
| | - Y Yamaguchi
- Department of Clinical Oncology, Kawasaki Medical School, Kurashiki
| | - T Morita
- Department of Surgery, Aomori Prefectural Central Hospital, Aomori
| | - J Matsuoka
- Department of Palliative Care, Okayama University Hospital, Okayama
| | - H Usuki
- Department of Gastroenterological Surgery, Kagawa University, Kagawa
| | - C Hamada
- Department of Management Science, Graduate School of Engineering, Tokyo University of Science, Tokyo
| | - S Kodaira
- Nerima General Hospital, Tokyo, Japan
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Miyanishi K, Tange Y, Ozaki N, Kimura T, Sano T, Sakawa Y, Tsuchiya T, Kodama R. Laser-shock compression of magnesium oxide in the warm-dense-matter regime. Phys Rev E Stat Nonlin Soft Matter Phys 2015; 92:023103. [PMID: 26382531 DOI: 10.1103/physreve.92.023103] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/03/2014] [Indexed: 06/05/2023]
Abstract
Magnesium oxide has been experimentally and computationally investigated in the warm-dense solid and liquid ranges from 200 GPa to 1 TPa along the principal Hugoniot. The linear approximation between shock velocity and particle velocity is validated up to a shock velocity of 15 km/s from the experimental data, this suggesting that the MgO B1 structure is stable up to the corresponding shock pressure of ∼350 GPa. Moreover, our Hugoniot data, combined with ab initio simulations, show two crossovers between MgO Hugoniot and the extrapolation of the linear approximation line, occurring at a shock pressures of approximately 350 and 650 GPa, with shock temperatures of 8000 and 14,000 K, respectively. These crossover regions are consistent with the solid-solid (B1-B2) and the solid-liquid (B2-melt) phase boundaries predicted by the ab initio calculations.
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Affiliation(s)
- K Miyanishi
- Graduate School of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
| | - Y Tange
- Japan Synchrotron Radiation Research Institute, Sayo, Hyogo 679-5198, Japan
- Geodynamics Research Center, Ehime University, Matsuyama, Ehime 790-8577, Japan
- Earth-Life Science Institute Ehime Satellite, Tokyo Institute of Technology, Meguro, Tokyo 152-8550, Japan
| | - N Ozaki
- Graduate School of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
- Photon Pioneers Center, Osaka University, Suita, Osaka 565-0871, Japan
| | - T Kimura
- Geodynamics Research Center, Ehime University, Matsuyama, Ehime 790-8577, Japan
| | - T Sano
- Institute of Laser Engineering, Osaka University, Suita, Osaka 565-0871, Japan
| | - Y Sakawa
- Institute of Laser Engineering, Osaka University, Suita, Osaka 565-0871, Japan
| | - T Tsuchiya
- Geodynamics Research Center, Ehime University, Matsuyama, Ehime 790-8577, Japan
- Earth-Life Science Institute Ehime Satellite, Tokyo Institute of Technology, Meguro, Tokyo 152-8550, Japan
| | - R Kodama
- Graduate School of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
- Photon Pioneers Center, Osaka University, Suita, Osaka 565-0871, Japan
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Kawashima M, Murakawa T, Ichinose J, Shinozaki T, Hino H, Tsuchiya T, Murayama T, Konoeda C, Nagayama K, Nitadori J, Anraku M, Nakajima J. F-073ROLE OF THE GLASGOW PROGNOSTIC SCORE AS A PROGNOSTIC INDICATOR FOR LUNG CANCER SURGERY. Interact Cardiovasc Thorac Surg 2015. [DOI: 10.1093/icvts/ivv204.73] [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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Oya S, Nejo T, Fujisawa N, Tsuchiya T, Indo M, Nakamura T, Matsui T. Usefulness of repetitive intraoperative indocyanine green-based videoangiography to confirm complete obliteration of micro-arteriovenous malformations. Surg Neurol Int 2015; 6:85. [PMID: 26015873 PMCID: PMC4443402 DOI: 10.4103/2152-7806.157445] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2014] [Accepted: 03/04/2015] [Indexed: 11/17/2022] Open
Abstract
Background: It is difficult to intraoperatively confirm the total disappearance of arteriovenous (AV) shunts during surgery for microarteriovenous malformations (micro-AVMs), especially when the nidus is extremely small or diffuse on preoperative angiography. Although intraoperative angiography is effective for evaluating residual shunts, procedure-related risks raise important concerns. The purpose of this study was to assess the usefulness of intraoperative indocyanine green-based videoangiography (ICG–VA) to determine complete disappearance of micro-AVMs during surgery. Methods: We retrospectively analyzed eight patients with ruptured micro-AVMs who were treated using craniotomy with ICG–VA at our institution. Results: Two patients underwent emergency partial evacuation of hematoma and external decompression before the diagnostic angiography. While three patients had a nidus smaller than 1 cm, five patients had only early draining veins without an appreciable nidus. The draining veins were superficial in six cases and deep in two cases. The average interval from onset to surgery was 33 days (range, 2–57). ICG–VA was repetitively conducted until disappearance of the AV shunt was confirmed. No residual AV shunt was observed on postoperative radiological examinations. In all cases, the diagnosis of AVM was confirmed from the results of postoperative pathological examination. Conclusions: ICG–VA could detect early draining veins more clearly in situ than diagnostic angiography. Although it is not as effective for visualizing lesions with deep draining veins, repetitive ICG–VA was safe and effective for confirming the disappearance of AV shunts with superficial drainage.
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Affiliation(s)
- Soichi Oya
- Department of Neurosurgery, Saitama Medical Center, Saitama Medical University, 1981 Kamoda, Kawagoe, Saitama 350-8550, Japan
| | - Takahide Nejo
- Department of Neurosurgery, Saitama Medical Center, Saitama Medical University, 1981 Kamoda, Kawagoe, Saitama 350-8550, Japan
| | - Naoaki Fujisawa
- Department of Neurosurgery, Saitama Medical Center, Saitama Medical University, 1981 Kamoda, Kawagoe, Saitama 350-8550, Japan
| | - Tsukasa Tsuchiya
- Department of Neurosurgery, Saitama Medical Center, Saitama Medical University, 1981 Kamoda, Kawagoe, Saitama 350-8550, Japan
| | - Masahiro Indo
- Department of Neurosurgery, Saitama Medical Center, Saitama Medical University, 1981 Kamoda, Kawagoe, Saitama 350-8550, Japan
| | - Takumi Nakamura
- Department of Neurosurgery, Saitama Medical Center, Saitama Medical University, 1981 Kamoda, Kawagoe, Saitama 350-8550, Japan
| | - Toru Matsui
- Department of Neurosurgery, Saitama Medical Center, Saitama Medical University, 1981 Kamoda, Kawagoe, Saitama 350-8550, Japan
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Shiraki T, Iida O, Takahara M, Soga Y, Yamauchi Y, Hirano K, Kawasaki D, Fujihara M, Utsunomiya M, Tazaki J, Yamaoka T, Shintani Y, Suematsu N, Suzuki K, Miyashita Y, Tsuchiya T, Uematsu M. Predictors of Delayed Wound Healing after Endovascular Therapy of Isolated Infrapopliteal Lesions Underlying Critical Limb Ischemia in Patients with High Prevalence of Diabetes Mellitus and Hemodialysis. Eur J Vasc Endovasc Surg 2015; 49:565-73. [DOI: 10.1016/j.ejvs.2015.01.017] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2014] [Accepted: 01/28/2015] [Indexed: 01/30/2023]
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Tojo S, Narita M, Koyama A, Sano M, Suzuki H, Tsuchiya T, Tsuchida H, Yamamoto S, Shishido H. Dipyridamole therapy in the nephrotic syndrome. Contrib Nephrol 2015; 9:111-27. [PMID: 352614 DOI: 10.1159/000401438] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Dipyridamole was used in 30 cases of nephrotic syndrome, mostly of intractable type. The results indicate that the drug therapy proved to be effective in decreasing urinary protein and controlling nephrotic condition in 40% of the cases after an initial period of treatment. Long-term results of the drug on urinary protein and on nephrotic condition were rated as good in 36.7 and 53.3%, respectively, of the cases treated. The exact mechanism of action of dipyridamole in the nephrotic syndrome is still obscure in many respects. However, the fact that the drug shares its anti-platelet action with the non-steroid anti-inflammatory drugs, e.g. aspirin and indomethacin, and the rapidity with which it produces its urinary protein-decreasing effect, strongly suggests that it inhibits the release of vasoactive amines and other chemical mediators from blood platelets. As far as the present study is concerned, adverse side effects of dipyridamole were few or minimal, even when the drug used in large doses over a prolonged period of time. From these results it is considered that dipyridamole provides a new remedy which is worthy of trying in nephrotic syndrome as a means of reducing the requirement of steroids and immunosuppressive drugs.
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Shimada N, Fukuda T, Ishii Y, Sekikawa D, Ohtsuki M, Matsuda H, Kodeki K, Ohya G, Nagao F, Kimura N, Nakano S, Murakami S, Miyamoto S, Tsuchiya T. Serum hepatitis in Japan. Bibl Haematol 2015; 23:1066-70. [PMID: 5879441 DOI: 10.1159/000384359] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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40
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Hori M, Someya M, Nakata K, Kitagawa M, Hasegawa T, Tsuchiya T, Gocho T, Fukushima Y, Takada Y, Sakata K. PO-1107 Comparative analysis of VMAT plans for prostate cancer with different MLCs, Elekta Agility and MLCi2. Radiother Oncol 2015. [DOI: 10.1016/s0167-8140(15)41099-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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41
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Tomoshige K, Tsuchiya T, Yamasaki N, Matsumoto K, Miyazaki T, Nagayasu T. 037 * INTRAOPERATIVE DIAGNOSIS OF LYMPH NODE METASTASIS IN NON-SMALL-CELL LUNG CANCER BY SEMI-DRY DOT-BLOT METHOD. Interact Cardiovasc Thorac Surg 2014. [DOI: 10.1093/icvts/ivu276.37] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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42
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Tachi T, Yokoi T, Goto C, Umeda M, Noguchi Y, Yasuda M, Minamitani M, Mizui T, Tsuchiya T, Teramachi H. Hyponatremia and hypokalemia as risk factors for falls. Eur J Clin Nutr 2014; 69:205-10. [PMID: 25226820 DOI: 10.1038/ejcn.2014.195] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2014] [Revised: 07/31/2014] [Accepted: 08/08/2014] [Indexed: 11/09/2022]
Abstract
BACKGROUND/OBJECTIVES Fall accidents may reduce an individual's quality of life and ability to perform the activities of daily life, and may delay recovery from illness. Consequently, medical institutions need to take measures to prevent falls. There are various risk factors for falls, including advanced age, illness and medication effects. Although hyponatremia and hypokalemia have been reported to increase the rate of falls, how they affect falls is not fully understood. SUBJECTS/METHODS We retrospectively examined 2948 patients, ⩾18 years old who had been hospitalized for ⩾3 days at Gifu (Japan) Municipal Hospital between May 2012 and April 2013 to determine the effects of hyponatremia and hypokalemia on the risk of falls. After the patients had been divided into fall and non-fall groups, their data were subjected to univariate and multiple regression analysis to identify significant differences. RESULTS The univariate analysis results revealed significant differences between the groups in terms of age (⩾65 years); the presence of hyponatremia, hypokalemia, central nervous system disease, cardiovascular disease and/or peripheral nerve/muscular disease; intake of medications that increase the risk of falls; and increased sedative dosage. The multivariate analysis results revealed significant differences between the groups in terms of the presence of hyponatremia (odds ratio (OR), 1.751; 95% confidence interval (CI), 1.020-3.005), hypokalemia (OR, 2.209; 95% CI, 1.280-3.813), central nervous system disease (OR, 2.492; 95% CI, 1.629-3.814) and/or age ⩾65 years (OR, 2.180; 95% CI, 1.242-3.826). CONCLUSIONS The results indicated that the presence of hyponatremia or hypokalemia increases the risk of falls.
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Affiliation(s)
- T Tachi
- 1] Laboratory of Clinical Pharmacy, Gifu Pharmaceutical University, Gifu, Japan [2] Department of Pharmacy, Gifu Municipal Hospital, Gifu, Japan
| | - T Yokoi
- Laboratory of Clinical Pharmacy, Gifu Pharmaceutical University, Gifu, Japan
| | - C Goto
- Department of Pharmacy, Gifu Municipal Hospital, Gifu, Japan
| | - M Umeda
- Department of Pharmacy, Gifu Municipal Hospital, Gifu, Japan
| | - Y Noguchi
- Laboratory of Clinical Pharmacy, Gifu Pharmaceutical University, Gifu, Japan
| | - M Yasuda
- Department of Pharmacy, Gifu Municipal Hospital, Gifu, Japan
| | - M Minamitani
- Department of Nursing, Gifu Municipal Hospital, Gifu, Japan
| | - T Mizui
- Department of Pharmacy, Gifu Municipal Hospital, Gifu, Japan
| | - T Tsuchiya
- Community Health Support and Research Center, Gifu, Japan
| | - H Teramachi
- Laboratory of Clinical Pharmacy, Gifu Pharmaceutical University, Gifu, Japan
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Morita M, Katagiri Y, Tsuchiya T, Kitamura M. The utility of the shock index to predict hemoperitoneum of ectopic pregnancy. Fertil Steril 2014. [DOI: 10.1016/j.fertnstert.2014.07.453] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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44
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Anazawa T, Saito T, Goto M, Kenmochi T, Uemoto S, Itoh T, Yasunami Y, Kenjo A, Kimura T, Ise K, Tsuchiya T, Gotoh M. Long-Term Outcomes of Clinical Transplantation of Pancreatic Islets With Uncontrolled Donors After Cardiac Death: A Multicenter Experience in Japan. Transplant Proc 2014; 46:1980-4. [DOI: 10.1016/j.transproceed.2014.06.006] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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45
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Tsuchiya T, Itoi T, Sofuni A, Itokawa F, Lee DK. Biliary duct-to-duct anastomosis using magnets in a Billroth II gastrectomy patient. Endoscopy 2014; 45 Suppl 2 UCTN:E243-4. [PMID: 24008446 DOI: 10.1055/s-0032-1310071] [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: 12/10/2022]
Affiliation(s)
- T Tsuchiya
- Department of Gastroenterology and Hepatology, Tokyo Medical University Hospital, Shinjuku-ku, Tokyo, Japan.
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46
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Yanai K, Oya S, Fujisawa N, Tsuchiya T, Indo M, Nakamura T, Matsui T. [A review of treatment outcomes for intracranial abscess at our institution]. No Shinkei Geka 2014; 42:213-219. [PMID: 24598870] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
BACKGROUND Intracranial abscesses account for 2% of the intracranial mass even in advanced countries. Because of the variety of causative organisms and symptoms, a standard treatment for intracranial abscess has not yet been established. MATERIALS AND METHODS We retrospectively reviewed the treatment outcomes for intracranial brain abscess and subdural abscess to assess the risk factors for poor prognosis and problems related to treatment. RESULTS In total, 28 patients were included in this study. Preceding craniocervical infections were found in 35.7% of patients. In 39.3% of patients, causative organisms were not identified. The treatment outcome evaluated using the modified Rankin Scale was 0 in 17 patients, 1 in 1 patient, 2 in 2 patients, 4 in 3 patients, 5 in 1 patient, and 6 in 4 patients. All mortality was noted in patients older than 60 years. Advanced age and the development of ventriculitis were significantly associated with poor outcome, i.e., a modified Rankin Scale score of 4 or worse. In contrast, the presence of fever or headache as initial symptoms, severity of neurological deficit, location of the abscess, and lack of identification of causative organism were not related to poor outcome. Compared with our previous treatment results, diffusion-weighted MR imaging has significantly contributed to the improvement of outcomes. CONCLUSION Early administration of antibiotic therapy based on MR findings was critical in obtaining a good outcome in the treatment of brain abscess. Based on our experience, treatment should be continued, even for patients in a critical condition.
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Affiliation(s)
- Kei Yanai
- Department of Neurosurgery, Saitama Medical Center, Saitama Medical University
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47
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Iida O, Soga Y, Takahara M, Kawasaki D, Yamauchi Y, Suzuki K, Hirano K, Koshida R, Kamoi D, Tazaki J, Higashitani M, Shintani Y, Yamaoka T, Okazaki S, Suematsu N, Tsuchiya T, Miyashita Y, Shinozaki N, Takahashi H, Uematsu M. Perioperative Complications After Aorto-iliac Stenting: Associated Factors and Impact on Follow-up Cardiovascular Prognosis. Eur J Vasc Endovasc Surg 2014; 47:131-8. [DOI: 10.1016/j.ejvs.2013.09.024] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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48
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Orui H, Takahara M, Ishikawa A, Takagi M, Tsuchiya T, Ogino T. Radiological features of long bones in synovitis, acne, pustulosis, hyperostosis, osteitis syndrome and their correlation with pathological findings. Mod Rheumatol 2014; 12:56-63. [PMID: 24383833 DOI: 10.3109/s101650200009] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Abstract The purpose of this study was to demonstrate the radiological features of long bones in synovitis, acne, pustulosis, hyperostosis, osteitis (SAPHO) syndrome and to correlate these with the clinical findings. Eleven long bone lesions in seven cases of SAPHO syndrome were examined. The patients ranged in age from 6 to 63 years, with a mean of 47 years. In all seven cases, radiography, (99m)technetium bone scintigraphy, CT scan, and magnetic resonance imaging (MRI) were performed. In six of the cases, bone biopsy and bone culture were carried out for 7 long bones. Seven of the involved lesions were from the shaft of the femur, one each was from the neck and the shaft of the humerus, and one was from the proximal tibia. These lesions showed radiologically hyperostosis, osteolysis, and bone infarction-like lesion. Osteolysis was occasionally accompanied by sclerotic change. Hyperostosis usually showed diaphyseal involvement, presenting low signal intensity on T1- and T2-weighted MR images. Histologically, these findings corresponded to massive bone necrosis, new bone formation, fibrosis, or a mixture of these associated with mild inflammatory cell infiltration. Osteolysis involved dyaphysis, metaphysis, or epiphysis associated with arthritis, and presented low signal intensity on T1-weighted images, nonhomogeneous signal intensity lower than fat on T2-weighted images, and high signal intensity on fat suppression images. These findings corresponded to fibrosis, granulation, and inflammatory cell infiltration with lymphocyte aggregation. Bone infarction-like lesion was observed in the shaft or neck of the femur and the humerus and accompanied by calcification and cystic change. Bone cultures were negative in all cases in which bone biopsy was performed. Although hyperostosis is thought to be a characteristic bone lesion in SAPHO syndrome, the long bone lesion can occasionally show not only hyperostosis but also osteolytsis and bone infarction-like lesions.
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Affiliation(s)
- H Orui
- Department of Orthopaedic Surgery, Yamagata University School of Medicine , 2-2-2 Iida-nishi, Yamagata 990-9585 , Japan
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Tachi T, Teramachi H, Asano S, Tanaka K, Fukuta M, Osawa T, Aoyama S, Yasuda M, Mizui T, Goto C, Tsuchiya T. Impact of levofloxacin dose adjustments by dispensing pharmacists on adverse reactions and costs in the treatment of elderly patients. Pharmazie 2013; 68:977-982. [PMID: 24400446] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Ensuring an appropriate dosage of renally eliminated drugs for patients with renal insufficiency is important for preventing adverse drug reactions. We investigated the effectiveness of interventions by pharmacists in a hospital pharmaceutical department. The comparative study was performed at Gifu Municipal Hospital in Japan from March to August 2011, and included an intervention (142 patients) and a control group (98 patients). Upon receiving a prescription of levofloxacin for patients aged > or = 75 years, pharmacists evaluated the patients' kidney function and adjusted the appropriate dosage at the time of dispensation. In the intervention and control groups, levofloxacin-induced adverse reactions developed in 6 of 142 (4.2%) and 13 of 98 (13.3%) patients, respectively (p < 0.05). The cost of reducing levofloxacin per patient was yen 191.1 and yen 0 in the intervention and control groups, respectively. The cost per patient for adverse reaction treatments and examinations was yen 15.5 and yen 290.0 in the intervention and control groups, respectively. The intergroup difference in the total cost per patient was yen 465.6. Dose adjustment of levofloxacin at the time of dispensation by the pharmacist for patients aged > or = 75 years resulted in a decrease in the incidence of adverse reactions and cost. These findings can be applied not only to hospitals, but also to community pharmacies, because the intervention, which is a manual system, is simply performed when pharmacists are dispensing drugs.
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Affiliation(s)
- T Tachi
- Laboratory of Clinical Pharmacy, Gifu Pharmaceutical University, Gifu, Japan.
| | - H Teramachi
- Laboratory of Clinical Pharmacy, Gifu Pharmaceutical University, Gifu, Japan
| | - S Asano
- Laboratory of Clinical Pharmacy, Gifu Pharmaceutical University, Gifu, Japan
| | - K Tanaka
- Department of Pharmacy, Gifu Municipal Hospital, Gifu, Japan
| | - M Fukuta
- Department of Pharmacy, Gifu Municipal Hospital, Gifu, Japan
| | - T Osawa
- Department of Pharmacy, Gifu Municipal Hospital, Gifu, Japan
| | - S Aoyama
- Department of Pharmacy, Gifu Municipal Hospital, Gifu, Japan
| | - M Yasuda
- Department of Pharmacy, Gifu Municipal Hospital, Gifu, Japan
| | - T Mizui
- Department of Pharmacy, Gifu Municipal Hospital, Gifu, Japan
| | - C Goto
- Department of Pharmacy, Gifu Municipal Hospital, Gifu, Japan
| | - T Tsuchiya
- Laboratory of Clinical Pharmacy, Gifu Pharmaceutical University, Gifu, Japan
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Teramachi H, Ohta H, Tachi T, Toyoshima M, Mizui T, Goto C, Tsuchiya T. Pharmacoeconomic analysis of DPP-4 inhibitors. Pharmazie 2013; 68:909-915. [PMID: 24380242] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Dipeptidyl peptidase-4 (DPP-4) inhibitors and other incretin-related drugs have attracted attention as antidiabetic agents, but they are expensive. The Japanese government has adopted a policy of reducing healthcare costs, and medical institutions must provide medical care while considering economic efficiency. This study was a comparative survey of the usage, treatment effectiveness, and cost of DPP-4 inhibitors. The subjects were patients prescribed DPP-4 inhibitors (sitagliptin, vildagliptin, and alogliptin) at Gifu Municipal Hospital between February 2010 and August 2011. HbA1c: Japan Diabetes Society values (%) and concomitant antidiabetic agents were surveyed for 12 weeks after the start of DPP-4 inhibitors. A cost-effectiveness analysis showed that the cost required for a 0.1% decrease in HbA1c for 12 weeks was the lowest with vildagliptin (2,478 yen; decrease in HbA1c: 0.75% +/- 0.85%). In a cost analysis with a virtual cohort of 1000 patients, the number of patients who achieved the treatment target (HbA1c 6.5%) was estimated with respect to a virtual cohort created based on the HbA1c level (7.59 +/- 1.13%) at baseline of 307 patients, in cases assuming the use of each DPP-4 inhibitor. In addition, the incremental cost-effectiveness ratio (ICER) was obtained with sitagliptin 50 mg as the reference. The number of patients achieving the treatment target was the highest with vildagliptin 100 mg (413 of 1000 patients), and the estimated ICER of 28,359 yen was the lowest. Robustness was also confirmed with a sensitivity analysis. These results suggest that vildagliptin provides a superior cost-benefit.
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Affiliation(s)
- H Teramachi
- Laboratory of Clinical Pharmacy, Gifu Pharmaceutical University, Gifu, Japan.
| | - H Ohta
- Laboratory of Clinical Pharmacy, Gifu Pharmaceutical University, Gifu, Japan
| | - T Tachi
- Laboratory of Clinical Pharmacy, Gifu Pharmaceutical University, Gifu, Japan
| | - M Toyoshima
- Laboratory of Clinical Pharmacy, Gifu Pharmaceutical University, Gifu, Japan
| | - T Mizui
- Department of Pharmacy, Gifu Municipal Hospital, Gifu, Japan
| | - C Goto
- Department of Pharmacy, Gifu Municipal Hospital, Gifu, Japan
| | - T Tsuchiya
- Laboratory of Clinical Pharmacy, Gifu Pharmaceutical University, Gifu, Japan
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