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Kawakami N, Uchiyama F, Harada A, Yamada T, Nishimura JI. Two Case Studies on Inferior Mesenteric Artery Embolization for Primary Postpartum Hemorrhage. Interventional Radiology 2022; 7:26-29. [PMID: 35911872 PMCID: PMC9327405 DOI: 10.22575/interventionalradiology.2021-0002] [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] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/15/2021] [Accepted: 08/12/2021] [Indexed: 11/25/2022]
Abstract
Postpartum hemorrhage (PPH) remains a leading cause of maternal mortality. Transcatheter arterial embolization (TAE) is an effective treatment option for PPH. Among the vessels embolized, the inferior mesenteric artery (IMA) is usually not the first choice for TAE, because it is a rare source of bleeding in PPH. In this report, we describe our experience with two patients with PPH, in whom the IMA was selected on the basis of contrast-enhanced computed tomography (CECT) findings, and prompt hemostasis was achieved with TAE. CECT can provide useful clues as to the culprit artery based on the anatomical location of the hematoma and extravasation. These useful findings of CECT allow prompt TAE of rare sources of bleeding in PPH, such as the IMA.
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Affiliation(s)
- Naoki Kawakami
- Department of Interventional Radiology, Japanese Red Cross Medical Center
| | - Fumiya Uchiyama
- Department of Interventional Radiology, Japanese Red Cross Medical Center
| | - Akinori Harada
- Department of Interventional Radiology, Japanese Red Cross Medical Center
| | - Tetsuhisa Yamada
- Department of Interventional Radiology, Japanese Red Cross Medical Center
| | - Jun-ichi Nishimura
- Department of Interventional Radiology, Japanese Red Cross Medical Center
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2
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Ito Y, Awano N, Uchiyama F, Inomata M, Kuse N, Tone M, Takada K, Fujimoto K, Muto Y, Sagisaka S, Maki K, Yamashita R, Harada A, Nishimura JI, Hayashi M, Izumo T. Spontaneous Muscle Hematoma in Japanese Patients with Severe COVID-19 Treated with Unfractionated Heparin: Two Case Reports. Intern Med 2021; 60:3503-3506. [PMID: 34433713 PMCID: PMC8627824 DOI: 10.2169/internalmedicine.7422-21] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
In hospitalized coronavirus disease 2019 (COVID-19) patients, anticoagulation therapy is administered to prevent thrombosis. However, anticoagulation sometimes causes bleeding complications. We herein report two Japanese cases of severe COVID-19 in which spontaneous muscle hematomas (SMH) developed under therapeutic anticoagulation with unfractionated heparin. Although the activated partial prothrombin time was within the optimal range, contrast-enhanced computed tomography (CECT) revealed SMH in the bilateral iliopsoas muscles in both cases, which required emergent transcatheter embolization. Close monitoring of the coagulation system and the early diagnosis of bleeding complications through CECT are needed in severe COVID-19 patients treated with anticoagulants.
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Affiliation(s)
- Yu Ito
- Department of Respiratory Medicine, Japanese Red Cross Medical Center, Japan
| | - Nobuyasu Awano
- Department of Respiratory Medicine, Japanese Red Cross Medical Center, Japan
| | - Fumiya Uchiyama
- Department of Interventional Radiology, Japanese Red Cross Medical Center, Japan
| | - Minoru Inomata
- Department of Respiratory Medicine, Japanese Red Cross Medical Center, Japan
| | - Naoyuki Kuse
- Department of Respiratory Medicine, Japanese Red Cross Medical Center, Japan
| | - Mari Tone
- Department of Respiratory Medicine, Japanese Red Cross Medical Center, Japan
| | - Kohei Takada
- Department of Respiratory Medicine, Japanese Red Cross Medical Center, Japan
| | - Kazushi Fujimoto
- Department of Respiratory Medicine, Japanese Red Cross Medical Center, Japan
| | - Yutaka Muto
- Department of Respiratory Medicine, Japanese Red Cross Medical Center, Japan
| | - Shogo Sagisaka
- Department of Emergency and Critical Care Medicine, Japanese Red Cross Medical Center, Japan
| | - Kenro Maki
- Department of Emergency and Critical Care Medicine, Japanese Red Cross Medical Center, Japan
| | - Ryuta Yamashita
- Department of Emergency and Critical Care Medicine, Japanese Red Cross Medical Center, Japan
| | - Akinori Harada
- Department of Interventional Radiology, Japanese Red Cross Medical Center, Japan
| | - Jun-Ichi Nishimura
- Department of Interventional Radiology, Japanese Red Cross Medical Center, Japan
| | - Munehiro Hayashi
- Department of Emergency and Critical Care Medicine, Japanese Red Cross Medical Center, Japan
| | - Takehiro Izumo
- Department of Respiratory Medicine, Japanese Red Cross Medical Center, Japan
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3
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Murakami Y, Murakami Y, Kamima T, Abo N, Takahashi T, Kaneko M, Nakano M, Matsubayashi F, Harada A, Taguchi S, Hashimoto T, Oguchi M, Yoshioka Y. Dosimetric Comparison Between 3D Conformal Radiation Therapy Plus Electron Boost and Simultaneous Integrated Boost Volumetric Modulated Arc Therapy for Left-Sided Breast Cancer Patients With a Potential Risk of Radiation-Induced Cardiac Toxicity. Int J Radiat Oncol Biol Phys 2021. [DOI: 10.1016/j.ijrobp.2021.07.1435] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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4
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Inomata M, Kuse N, Awano N, Tone M, Yoshimura H, Jo T, Minami J, Takada K, Muto Y, Fujimoto K, Harada A, Bae Y, Kumasaka T, Yamakawa H, Sato S, Tobino K, Matsushima H, Takemura T, Izumo T. Utility of radial endobronchial ultrasonography combined with transbronchial lung cryobiopsy in patients with diffuse parenchymal lung diseases: a multicentre prospective study. BMJ Open Respir Res 2021; 8:8/1/e000826. [PMID: 33441374 PMCID: PMC7812092 DOI: 10.1136/bmjresp-2020-000826] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [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: 11/05/2020] [Revised: 12/14/2020] [Accepted: 12/17/2020] [Indexed: 11/21/2022] Open
Abstract
Background Radial endobronchial ultrasonography (R-EBUS) has been used in conjunction with transbronchial lung cryobiopsy (TBLC) to diagnose diffuse parenchymal lung disease (DPLD) and to decrease the risk of bleeding complications. The diagnostic utility of different R-EBUS signs, however, remains unknown. Objectives This study aimed to determine whether different R-EBUS signs could be used to more accurately diagnose DPLD and whether bronchial bleeding could be prevented with use of R-EBUS during TBLC. Method Eighty-seven patients with DPLD were included in this multicentre prospective study, with 49 patients undergoing R-EBUS. R-EBUS signals were characterised as displaying either dense or blizzard signs. Pathological confidence of specimens obtained from TBLC was compared between patients with dense versus blizzard signs, and severity of bronchial bleeding was determined based on whether R-EBUS was performed or not. Results All patients with dense signs on R-EBUS showed consolidation on high-resolution CT (HRCT) imaging. Pathological confidence of lung specimens was significantly higher in patients with dense signs versus those with blizzard signs (p<0.01) and versus those who did not undergo R-EBUS (p<0.05). Patients who underwent TBLC with R-EBUS were more likely to experience no or mild bronchial bleeding than patients who did not undergo R-EBUS (p<0.01), with shorter procedure times (p<0.01). Conclusions The dense R-EBUS sign corresponded with consolidation on HRCT. High-quality lung specimens may be obtainable when the dense sign is observed on R-EBUS, and R-EBUS combined with TBLC may reduce risk of bronchial bleeding and shorten procedure times.
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Affiliation(s)
- Minoru Inomata
- Department of Respiratory Medicine, Japanese Red Cross Medical Center, Tokyo, Japan
| | - Naoyuki Kuse
- Department of Respiratory Medicine, Japanese Red Cross Medical Center, Tokyo, Japan
| | - Nobuyasu Awano
- Department of Respiratory Medicine, Japanese Red Cross Medical Center, Tokyo, Japan
| | - Mari Tone
- Department of Respiratory Medicine, Japanese Red Cross Medical Center, Tokyo, Japan
| | - Hanako Yoshimura
- Department of Respiratory Medicine, Japanese Red Cross Medical Center, Tokyo, Japan
| | - Tatsunori Jo
- Department of Respiratory Medicine, Japanese Red Cross Medical Center, Tokyo, Japan
| | - Jonsu Minami
- Department of Respiratory Medicine, Japanese Red Cross Medical Center, Tokyo, Japan
| | - Kohei Takada
- Department of Respiratory Medicine, Japanese Red Cross Medical Center, Tokyo, Japan
| | - Yutaka Muto
- Department of Respiratory Medicine, Japanese Red Cross Medical Center, Tokyo, Japan
| | - Kazushi Fujimoto
- Department of Respiratory Medicine, Japanese Red Cross Medical Center, Tokyo, Japan
| | - Akinori Harada
- Department of Radiology, Japanese Red Cross Medical Center, Tokyo, Japan
| | - Yuan Bae
- Department of Pathology, Japanese Red Cross Medical Center, Tokyo, Japan
| | - Toshio Kumasaka
- Department of Pathology, Japanese Red Cross Medical Center, Tokyo, Japan
| | - Hideaki Yamakawa
- Department of Respiratory Medicine, Saitama Red Cross Hospital, Saitama, Japan
| | - Shintaro Sato
- Department of Respiratory Medicine, Saitama Red Cross Hospital, Saitama, Japan
| | - Kazunori Tobino
- Department of Respiratory Medicine, Iizuka Hospital, Fukuoka, Japan
| | - Hidekazu Matsushima
- Department of Respiratory Medicine, Saitama Red Cross Hospital, Saitama, Japan
| | - Tamiko Takemura
- Department of Pathology, Japanese Red Cross Medical Center, Tokyo, Japan.,Department of Pathology, Kanagawa Cardiovascular and Respiratory Center, Kanagawa, Japan
| | - Takehiro Izumo
- Department of Respiratory Medicine, Japanese Red Cross Medical Center, Tokyo, Japan
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Araki K, Miyagawa S, Kawamura T, Ishii R, Harada A, Ueno T, Toda K, Kuratani T, Sawa Y. Autologous skeletal myoblast sheet prevents cardiomyocyte ischemia and right heart dysfunction in pressure-overloaded right heart porcine model. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.3723] [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
Introduction
Severe heart failure (HF) with congenital heart disease (CHD) have demonstrated life threatening disorder despite of remarkable progress in medical therapies. Autologous skeletal myoblast sheet transplantation therapy showed clinical efficacy for left ventricular dysfunction by cytokine paracrine effects, which are expected to be sufficiently effective against right ventricular (RV) dysfunction which is often seen in end-stage of CHD patients with severe HF.
Hypothesis
An autologous skeletal myoblast sheet transplantation alleviates RV dysfunction in a pressure-overloaded right heart in a porcine model.
Methods
Five-to-six-month-old Göttingen mini-pigs underwent pulmonary artery banding with vascular occluding system. To create the porcine model of chronic pressure-overloaded right heart, vascular occluding system was gradually inflated, over a month, to make pulmonary stenosis to banding velocity >3.0 m/s measured by echocardiography (UCG), and then fixed for another month. Two months after banding, autologous skeletal myoblast sheet was placed on the epicardium of the RV free wall and followed for 2 months. Groups were as follows: control (C, n=5), sheet implantation (S, n=5). Cardiac function was measured using UCG, cardiac computed tomography (CT), and cardiac catheterization (Cath). Two months after sheet implantation, hearts were dissected for histologic analysis.
Results
Before sheet implantation, RV dysfunction was equal in groups; however, 2 months after sheet implantation, RV dysfunction and myocardial ischemia was significantly ameliorated in group S than group C. On CT, RV ejection fraction exacerbation were well controlled in Group S compared to Group C (S 44.9±2.2 vs C 31.9±2.1% [p=0.0042]). UCG and Cath revealed well maintained systolic and diastolic function in Group S compared to Group C (Tei index: S 0.42±0.06 vs C 0.70±0.07 [p=0.0240], Fraction Area Change: S 45.8±7.8 vs C 19.5±1.3% [p=0.0240], Isovolumic Relaxation Time; S 44.3±9.2 vs C 97.3±9.5 ms [p=0.0304]). On C11-Acetate Positron Emission Tomography, myocardial ischemia was more prominent in Group C compared to Group S (K mono-Rest/Stress: S 3.17±0.69 vs C 2.03±0.65 min-1 [p=0.0421], Myocardial Blood Flow-Rest/Stress: S 3.22±0.39 vs C 2.13±0.92 min-1 [p=0.0421]). In histologic analysis, Group S presented less progressed hypertrophic change in periodic acid-Schiff stain (S 13.5±0.9 vs C 18.0±3.0 μg [p=0.0240]), anti-fibrotic changes in picrosirius red stain (S 3.0±0.3 vs C 4.2±0.2% [p=0.0421]), more angiogenesis in CD31 expression (S 18.3±1.5 vs C 10.7±2.8 / 104 μm2 [p=0.0240]), and less production of reactive oxygen species in fluorescent immunostaining (S 5.9±1.7 vs C 18.4±1.7% [p=0.0304]).
Conclusion
Autologous skeletal myoblast sheet transplantation alleviates cardiomyocyte Ischemia and RV dysfunction in a porcine model of pressure-overloaded right heart.
Funding Acknowledgement
Type of funding source: None
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Affiliation(s)
- K Araki
- Osaka University, Osaka, Japan
| | | | | | - R Ishii
- Osaka University, Osaka, Japan
| | | | - T Ueno
- Osaka University, Osaka, Japan
| | - K Toda
- Osaka University, Osaka, Japan
| | | | - Y Sawa
- Osaka University, Osaka, Japan
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Nakazato T, Miyagawa S, Uemura T, Liu L, Li J, Sasai M, Harada A, Toda K, Sawa Y. Functional engineered heart tissue cultured in a rotating wall vessel bioreactor improve cardiac function in the distressed rat heart. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.3656] [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: 11/15/2022] Open
Abstract
Abstract
Introduction
How to construct massive cardiac tissue and culture it with functional improvement may be crucial as cardiomyogenesis in failed heart. We previously presented that dynamic culture in a rotating wall vessel (RWV) bioreactor could provide a better culture environment for maintenance of the engineered 3D cardiac tissue. However, it is unknown about the effect of the tissue cultured in a RWV bioreactor on engraftment and improvement of function in the distressed rat heart.
Hypothesis
We hypothesized that the engineered 3D cardiac tissue cultured in a RWV bioreactor could improve its engraftment and lead recovery of cardiac function in rat infarction model.
Methods
We made engineered cardiac tissue by seeding 2.0 × 106 human induced pluripotent stem cell derived cardiomyocytes on the PLGA fiber sheet. It was cultured in the RWV bioreactor for seven days (RWV group). For the control, static culture has been done. After in vitro assessment, these tissues were transplanted to myocardial infarction model nude rats (sham, control, and RWV group, n=10, respectively) and cardiac performance was evaluated by ultrasonography. Four weeks after transplantation, we evaluated their hearts by histological analysis.
Results
The RWV group demonstrated maturation of cardiomyocytes evidenced by significantly higher expression of Troponin T (TnT), sarcomeric α actinin (SAA), connexin 43 (Cx43) and myosin heavy chain 7 (MYH7) than the control by Western blots (TnT; 2.7±1.0 vs. 1.0±0.4, p<0.01, SAA; 2.1±0.7 vs. 1.0±0.2, p<0.01, Cx 43; 2.0±0.6 vs. 1.0±0.1, p<0.05, MYH7; 10.9±2.7 vs. 1.0±0.1, p<0.01). In the culture supernatant, the concentration of cytokines related to angiogenesis was significantly higher in the RWV group than in the control (VEGF; 29.6±7.4 vs. 12.2±4.3pg/ml, p<0.01, HGF; 72.7±9.9 vs. 42.6±5.9pg/ml, p<0.01). Four weeks after transplantation, the left ventricular ejection fraction was significantly improved in the RWV group than in the control (RWV vs. control; 47±4.9 vs. 38±6.9%, p<0.01). On histological analysis, more engineered cardiac tissue survived in the RWV group than in the control (RWV vs. control; 7/10 vs. 3/10, p=0.18). A vascular-like structure double-stained with isolectin B4 and smooth muscle actin was partially observed in the transplanted tissue. LV remodeling exhibiting extracellular collagen deposition (fibrotic area, RWV vs. control; 17±4.3 vs. 24±5.2%, p<0.05) and cardiomyocyte hypertrophy (RWV vs. control; 16±1.7 vs. 18±2.1μm, p<0.05) was significantly attenuated in RWV group than in the control. Neovascularization was significantly noted in the RWV group compared with the control (capillary density, RWV vs. control; 545±113 vs. 356±92, p<0.01).
Conclusion
Functional engineered 3D cardiac tissue cultured in a RWV bioreactor could induce angiogenesis and improved its engraftment, leading significant improvement of cardiac function in rat infarction model.
Dynamic culture in a RWV bioreactor
Funding Acknowledgement
Type of funding source: Public grant(s) – National budget only. Main funding source(s): Japan Society for the Promotion of Science
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Affiliation(s)
- T Nakazato
- Osaka University Graduate School of Medicine, Suita, Japan
| | - S Miyagawa
- Osaka University Graduate School of Medicine, Suita, Japan
| | - T Uemura
- JTEC CORPORATION, Ibaraki, Japan
| | - L Liu
- Osaka University Graduate School of Medicine, Suita, Japan
| | - J Li
- Osaka University Graduate School of Medicine, Suita, Japan
| | - M Sasai
- Osaka University Graduate School of Medicine, Suita, Japan
| | - A Harada
- Osaka University Graduate School of Medicine, Suita, Japan
| | - K Toda
- Osaka University Graduate School of Medicine, Suita, Japan
| | - Y Sawa
- Osaka University Graduate School of Medicine, Suita, Japan
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Fujimoto D, Otake H, Kawamori H, Toba T, Nagao M, Sugizaki Y, Nagasawa A, Takeshige R, Harada A, Murakami K, Iino T, Irino Y, Toh R, Hirata K. Cholesterol uptake capacity: a new measure of HDL functionality as a predictor of subsequent revascularization in patients undergoing percutaneous coronary intervention. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.1497] [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
Recent studies have demonstrated the importance of high-density lipoprotein (HDL) functionality in the development of de novo coronary artery disease by using the cholesterol-efflux capacity, a measure of the ability of HDL to promote cholesterol removal from lipid-laden macrophages. Recently, we developed a rapid cell-free assay system to directly evaluate the capacity of HDL to accept additional cholesterol; the measurement of the cholesterol-uptake capacity (CUC) enables HDL functionality to be readily evaluated in our daily practice. However, prognostic implication of CUC measurement at the timing of percutaneous coronary intervention (PCI) remains unclear.
Purpose
We aimed to evaluate the association between baseline CUC and revascularization during follow-up in the patients who underwent PCI.
Methods
We retrospectively reviewed the patients who underwent PCI with follow-up coronary angiography (CAG) or ischemic-driven revascularization. The patients who had the frozen blood samples of which CUC were measurable at the index PCI and follow-up CAG or revascularization were enrolled. We excluded the patients under hemodialysis.
Results
Among a total of 703 consecutive patients who underwent PCI between Dec 2014 and Mar 2019, we finally enrolled 74 patients who underwent ischemic-driven revascularization (revascularization group) and 183 patients who underwent follow-up CAG without revascularization (non-revascularization group).There were no significant difference in baseline traditional cardiovascular risk factors between the groups. However, the presence of diabetes was significantly more frequent in the revascularization group (63.5% vs 41.0%; P=0.001) than in the non-revascularization group. CUC at the index PCI was significantly lower in the revascularization group than in the non-revascularization group (87.0±19.5 vs 93.9±19.2; P=0.004). Multivariate logistic regression analysis revealed that impaired HDL functionality assessed by decreased CUC level at the index PCI (odds ratio; 0.984, 95% confidence interval; 0.969–1.000) was independently associated with subsequent revascularization after PCI. Indeed, there was a graded inverse association between increasing tertiles of CUC levels and the incidence of revascularization during a median follow-up of 881 days (Figure). Especially in the subgroup analysis of non-diabetic patients, decreased CUC level at the index PCI was independently associated with subsequent revascularization (odds ratio; 0.947, 95% confidence interval; 0.915–0.981), while not in diabetic population.
Conclusion
Serum CUC level at the index procedure was associated with subsequent revascularization especially in non-diabetic patients who underwent PCI.
Funding Acknowledgement
Type of funding source: None
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Affiliation(s)
- D Fujimoto
- Kobe University Graduate School of Medicine, Division of Cardiovascular Medicine, Department of Internal Medicine, Kobe, Japan
| | - H Otake
- Kobe University Graduate School of Medicine, Division of Cardiovascular Medicine, Department of Internal Medicine, Kobe, Japan
| | - H Kawamori
- Kobe University Graduate School of Medicine, Division of Cardiovascular Medicine, Department of Internal Medicine, Kobe, Japan
| | - T Toba
- Kobe University Graduate School of Medicine, Division of Cardiovascular Medicine, Department of Internal Medicine, Kobe, Japan
| | - M Nagao
- Kobe University Graduate School of Medicine, Division of Evidence-based Laboratory Medicine, Kobe, Japan
| | - Y Sugizaki
- Kobe University Graduate School of Medicine, Division of Cardiovascular Medicine, Department of Internal Medicine, Kobe, Japan
| | - A Nagasawa
- Kobe University Graduate School of Medicine, Division of Cardiovascular Medicine, Department of Internal Medicine, Kobe, Japan
| | - R Takeshige
- Kobe University Graduate School of Medicine, Division of Cardiovascular Medicine, Department of Internal Medicine, Kobe, Japan
| | - A Harada
- Central Research Laboratories, Sysmex Corporation, Kobe, Japan
| | - K Murakami
- Central Research Laboratories, Sysmex Corporation, Kobe, Japan
| | - T Iino
- Central Research Laboratories, Sysmex Corporation, Kobe, Japan
| | - Y Irino
- Central Research Laboratories, Sysmex Corporation, Kobe, Japan
| | - R Toh
- Kobe University Graduate School of Medicine, Division of Evidence-based Laboratory Medicine, Kobe, Japan
| | - K Hirata
- Kobe University Graduate School of Medicine, Division of Cardiovascular Medicine, Department of Internal Medicine, Kobe, Japan
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8
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Inomata M, Jo T, Kuse N, Awano N, Tone M, Yoshimura H, Moriya A, Bae Y, Terada Y, Furuhata Y, Kumasaka T, Ushiwata A, Harada A, Terasaki Y, Takeuchi M, Sugiura H, Takemura T, Izumo T. Clinical impact of the radiological indeterminate for usual interstitial pneumonia pattern on the diagnosis of idiopathic pulmonary fibrosis. Respir Investig 2020; 59:81-89. [PMID: 32868263 DOI: 10.1016/j.resinv.2020.07.001] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2019] [Revised: 07/11/2020] [Accepted: 07/16/2020] [Indexed: 11/16/2022]
Abstract
BACKGROUND Idiopathic pulmonary fibrosis (IPF) is a fatal lung disease associated with significant morbidity and mortality. The international clinical practice guidelines for the diagnosis of IPF have recently been revised. METHODS In this single-center retrospective study conducted between June 2006 and March 2018, 27 patients with a newly classified indeterminate for usual interstitial pneumonia (UIP) pattern on high-resolution computed tomography (HRCT) who had undergone surgical lung biopsy were enrolled at the Japanese Red Cross Medical Center. Clinical and pathological characteristics and prognosis were retrospectively analyzed from patient records. RESULTS On the basis of multidisciplinary discussion (MDD), IPF was diagnosed in six patients (22%), unclassifiable interstitial pneumonia in 5 (19%), chronic hypersensitivity pneumonitis in 10 (37%), collagen vascular disease-associated interstitial lung disease in 5 (19%), and lymphoproliferative disorder in 1 (4%) patient. Ground-glass opacity, peribronchovascular distribution, upper or middle lobe distribution, mosaic attenuation, consolidation patterns, and honeycombing were found on HRCT. Histological UIP or probable UIP was observed in seven patients. The median survival time from the initial visit was 2770 days (92.3 months). There was a significant difference in survival time in the GAP stage and honeycombing on HRCT according to the log-rank test. CONCLUSIONS Patients with an indeterminate for UIP pattern on HRCT were more likely to have non-IPF than IPF through pathological diagnosis and MDD. GAP stage and honeycombing on HRCT may be significant risk factors for all-cause mortality.
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Affiliation(s)
- Minoru Inomata
- Department of Respiratory Medicine, Japanese Red Cross Medical Center, 4-1-22 Hiroo Shibuya-ku, Tokyo, 150-8935, Japan.
| | - Tatsunori Jo
- Department of Respiratory Medicine, Japanese Red Cross Medical Center, 4-1-22 Hiroo Shibuya-ku, Tokyo, 150-8935, Japan.
| | - Naoyuki Kuse
- Department of Respiratory Medicine, Japanese Red Cross Medical Center, 4-1-22 Hiroo Shibuya-ku, Tokyo, 150-8935, Japan.
| | - Nobuyasu Awano
- Department of Respiratory Medicine, Japanese Red Cross Medical Center, 4-1-22 Hiroo Shibuya-ku, Tokyo, 150-8935, Japan.
| | - Mari Tone
- Department of Respiratory Medicine, Japanese Red Cross Medical Center, 4-1-22 Hiroo Shibuya-ku, Tokyo, 150-8935, Japan.
| | - Hanako Yoshimura
- Department of Respiratory Medicine, Japanese Red Cross Medical Center, 4-1-22 Hiroo Shibuya-ku, Tokyo, 150-8935, Japan.
| | - Atsuko Moriya
- Department of Respiratory Medicine, Japanese Red Cross Medical Center, 4-1-22 Hiroo Shibuya-ku, Tokyo, 150-8935, Japan.
| | - Yuan Bae
- Department of Pathology, Japanese Red Cross Medical Center, 4-1-22 Hiroo Shibuya-ku, Tokyo, 150-8935, Japan.
| | - Yuriko Terada
- Department of Thoracic Surgery, Japanese Red Cross Medical Center, 4-1-22 Hiroo Shibuya-ku, Tokyo, 150-8935, Japan.
| | - Yoshiaki Furuhata
- Department of Thoracic Surgery, Japanese Red Cross Medical Center, 4-1-22 Hiroo Shibuya-ku, Tokyo, 150-8935, Japan.
| | - Toshio Kumasaka
- Department of Pathology, Japanese Red Cross Medical Center, 4-1-22 Hiroo Shibuya-ku, Tokyo, 150-8935, Japan.
| | - Ai Ushiwata
- Department of Clinical Medicine (Biostatistics), School of Pharmacy at Kitasato University, 5-9-1, Shirokane, Minato-ku, Tokyo, 108-8641, Japan.
| | - Akinori Harada
- Department of Radiology, Japanese Red Cross Medical Center, 4-1-22 Hiroo Shibuya-ku, Tokyo, 150-8935, Japan.
| | - Yasuhiro Terasaki
- Department of Analytic Human Pathology, Graduate School of Medicine, Nippon Medical School, 1-1-5, Sendagi, Bunkyo-ku, Tokyo, 113-8602, Japan.
| | - Masahiro Takeuchi
- Department of Clinical Medicine (Biostatistics), School of Pharmacy at Kitasato University, 5-9-1, Shirokane, Minato-ku, Tokyo, 108-8641, Japan.
| | - Hiroaki Sugiura
- Department of Radiology, National Defense Medical College Hospital, 3-2, Namiki, Tokorozawa City, Saitama, 359-8513, Japan.
| | - Tamiko Takemura
- Department of Pathology, Japanese Red Cross Medical Center, 4-1-22 Hiroo Shibuya-ku, Tokyo, 150-8935, Japan; Department of Pathology, Kanagawa Cardiovascular and Respiratory Center, 6-16-1 Tomioka-higashi, Kanazawa-ku, Yokohama City, Kanagawa, 236-0051, Japan.
| | - Takehiro Izumo
- Department of Respiratory Medicine, Japanese Red Cross Medical Center, 4-1-22 Hiroo Shibuya-ku, Tokyo, 150-8935, Japan.
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Harada A, Goto M, Ikeya M, Takenaka N, Tanaka A, Sakurai H. Neonatal transplantation of iPSC-derived MSCs affects systemic collagen vi restoration in ullrich congenital muscular dystrophy mice. Cytotherapy 2020. [DOI: 10.1016/j.jcyt.2020.03.143] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Tsukasaki K, Matsui Y, Arai H, Harada A, Tomida M, Takemura M, Otsuka R, Ando F, Shimokata H. Association of Muscle Strength and Gait Speed with Cross-Sectional Muscle Area Determined by Mid-Thigh Computed Tomography - A Comparison with Skeletal Muscle Mass Measured by Dual-Energy X-Ray Absorptiometry. J Frailty Aging 2020; 9:82-89. [PMID: 32259181 DOI: 10.14283/jfa.2020.16] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
BACKGROUND Muscle mass is often mentioned not to reflect muscle strength. For muscle mass assessment skeletal muscle index (SMI) is often used. We have reported that dual-energy X-ray absorptiometry (DXA)-derived SMI does not change with age in women, whereas the cross-sectional muscle area (CSMA) derived from computed tomography (CT) does. OBJECTIVES The present study aimed to compare CT and DXA for the assessment of muscle tissue. DESIGN AND SETTING Cross-sectional study in the local residents. PARTICIPANTS A total of 1818 subjects (age 40-89 years) randomly selected from community dwellers underwent CT examination of the right mid-thigh to measure the cross-sectional muscle area (CSMA). Skeletal muscle mass (SMM) was measured by DXA. The subjects performed physical function tests such as grip strength, knee extension strength, leg extension strength, and gait speed. The correlation between CT-derived CSMA and DXA-derived SMM along with their association with physical function was examined. RESULTS After controlling for related factors, the partial correlation coefficient of muscle cross-sectional area (CSA) with physical function was larger than that of DXA-derived SMM for gait speed in men (p=0.002) and knee extension strength in women (p=0.03). The partial correlation coefficient of quadriceps (Qc) CSA with physical function was larger than that of DXA-derived SMM for leg extension power in both sexes (p=0.01), gait speed in men (p<0.001), and knee extension strength in women (p<0.001). CONCLUSION Mid-thigh CT-derived CSMA, especially Qc CSA, showed significant associations with grip strength, knee extension strength, and leg extension power, which were equal to or stronger than those of DXA-derived SMM in community-dwelling middle-aged and older Japanese people. The mid-thigh CSMA may be a predictor of mobility disability, and is considered to be useful in the diagnosis of sarcopenia.
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Affiliation(s)
- K Tsukasaki
- Yasumoto Matsui, Center for Frailty and Locomotive syndrome, National Center for Geriatrics and Gerontology, 7-430. Morioka-cho, Obu, Aichi, Japan, e-mail address: , telephone 81-522-046-2311, fax numbers:81-562-44-8518
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Harada A, Torisu T, Esaki M. Gastrointestinal: Burkitt lymphoma showing multiple tumorous lesions in the gastrointestinal tract. J Gastroenterol Hepatol 2020; 35:361. [PMID: 31693241 DOI: 10.1111/jgh.14885] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/24/2019] [Revised: 07/19/2019] [Accepted: 10/03/2019] [Indexed: 12/09/2022]
Affiliation(s)
- A Harada
- Department of Medicine and Clinical Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - T Torisu
- Department of Medicine and Clinical Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - M Esaki
- Department of Medicine and Clinical Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan.,Department of Endoscopic Diagnostics and Therapeutics, Saga University Hospital, Saga, Japan
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Goto T, Miyagawa S, Tamai K, Matsuura R, Harada A, Ueno T, Toda K, Kuratani T, Sawa Y. P5391Systemic administration of high-mobility group box 1 can suppress adverse post-infarction ventricular remodeling in a rat infarction model by enhancing self-regeneration. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz746.0351] [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
High-mobility group box 1 protein (HMGB1) reportedly enhances CXCR4-positive bone marrow-derived mesenchymal stem cell (BM-MSC) recruitment to damaged tissue to promote tissue regeneration.
Purpose
Our aim of this study is to evaluate whether systemic administration of HMGB1 might promote tissue repair in a rat myocardial infarction (MI) model.
Methods
We prepared 26 MI model rats with high ligation of the left coronary artery. Two weeks later, HMGB1 (3 mg/kg/day) or phosphate-buffered saline (control: 3 mL/kg/day) was administered for 4 days via femoral vein. Cardiac performance was evaluated by ultrasonography, left ventricular (LV) remodeling via immunostaining. We then used immunostaining to examine MSC recruitment to damaged tissue in green fluorescent protein bone marrow transplantation (GFP-BMT) model rats, and also performed intravital imaging using two-photon microscopy to visualize BM-cells recruitment in real time.
Results
Compared with control rats, there was a significant improvement in the left ventricular ejection fraction of the HMGB1 group (HMGB1 vs. control: 48.6% ± 5.5% vs. 33.6% ± 5.4%; p<0.01) at 4 weeks after each administration. LV remodeling, characterized by interstitial fibrosis, cardiomyocyte hypertrophy, and a decrease of capillary density, was significantly attenuated in the HMGB1 group compared with control rats. On QT-PCR analysis, VEGF mRNA expression was significantly higher in the HMGB1 group than in the control (border zone; 1.6±0.6 vs. 1.1±0.2; p=0.02, septal zone; 1.1±0.1 vs. 0.9±0.1; p<0.01). In GFP-BMT rats, GFP+/PDGFR+ cells were significantly mobilized to the border zone in the HMGB1 group compared with the control (1331±197 vs. 615±45 /mm2; p<0.01), leading to formation of newly developed vasculature (Figure 1). In intravital imaging, more GFP+ cells were mobilized to the infarction area in the HMGB1 group than in the control, which was further enhanced at 12h later. Additionally, SDF-1 expression in the peri-infarction area increased significantly in MI rats compared with normal rats (MI vs. normal; 2.1±0.4 vs. 0.9±0.1; p<0.01), in where some cell-adhesions of vascular endothelial cells were destroyed.
Conclusions
Systemic administration of HMGB1 mobilized BM-MSCs to the damaged myocardium via the SDF-1/CXCR4 signaling complex. Those BM-MSCs might migrate to extracellular matrix in the border zone via the gap of each endothelial cell, leading to induction of angiogenesis and reduced fibrosis.
Acknowledgement/Funding
None
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Affiliation(s)
- T Goto
- Osaka University Graduate School of Medicine, Suita, Japan
| | - S Miyagawa
- Osaka University Graduate School of Medicine, Suita, Japan
| | - K Tamai
- Osaka University Graduate School of Medicine, Department of Stem Cell Therapy Science, Osaka, Japan
| | - R Matsuura
- Osaka University Graduate School of Medicine, Suita, Japan
| | - A Harada
- Osaka University Graduate School of Medicine, Suita, Japan
| | - T Ueno
- Osaka University Graduate School of Medicine, Suita, Japan
| | - K Toda
- Osaka University Graduate School of Medicine, Suita, Japan
| | - T Kuratani
- Osaka University Graduate School of Medicine, Department of Minimally Invasive Cardiovascular Medicine, Osaka, Japan
| | - Y Sawa
- Osaka University Graduate School of Medicine, Suita, Japan
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Murakami K, Kiriyama M, Kubo T, Saiki N, Miwa K, Irino Y, Toh R, Hirata K, Harada A. Establishment Of An Automated Assay For Cholesterol Uptake Capacity, A New Concept Of High-Density Lipoprotein Functionality. Atherosclerosis 2019. [DOI: 10.1016/j.atherosclerosis.2019.06.679] [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: 11/16/2022]
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14
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Harada A, Umeno J, Esaki M. Gastrointestinal: Multiple venous malformations and polyps of the small intestine in Cowden syndrome. J Gastroenterol Hepatol 2018; 33:1819. [PMID: 29952025 DOI: 10.1111/jgh.14304] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/24/2018] [Accepted: 05/28/2018] [Indexed: 01/23/2023]
Affiliation(s)
- A Harada
- Kyushu University, Department of Medicine and Clinical Science, Graduate School of Medical Sciences, Fukuoka, Japan
| | - J Umeno
- Kyushu University, Department of Medicine and Clinical Science, Graduate School of Medical Sciences, Fukuoka, Japan
| | - M Esaki
- Kyushu University, Department of Medicine and Clinical Science, Graduate School of Medical Sciences, Fukuoka, Japan
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Harada A, Sumi M, Toshiyasu T, Yoshioka Y, Takazawa Y, Ae K, Matsumoto S, Oguchi M. Palliative Radiation Therapy for Spinal Metastasis from Myxoid Liposarcoma. Int J Radiat Oncol Biol Phys 2018. [DOI: 10.1016/j.ijrobp.2018.07.1279] [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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Yamaoka H, Yamashita T, Harada A, Sakaguchi A, Kinoshita K, Kishida S, Hayase S, Nokami T, Itoh T. Significantly Improved Performance of a Conducting-bridge Random Access Memory (CB-RAM) Device Using Copper-containing Glyme Salt. CHEM LETT 2017. [DOI: 10.1246/cl.170854] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Hiroki Yamaoka
- Department of Chemistry and Biotechnology, Graduate School of Engineering, Tottori University, 4-101 Koyama-minami, Tottori 680-8552
| | - Takuya Yamashita
- Department of Chemistry and Biotechnology, Graduate School of Engineering, Tottori University, 4-101 Koyama-minami, Tottori 680-8552
| | - Akinori Harada
- Department of Chemistry and Biotechnology, Graduate School of Engineering, Tottori University, 4-101 Koyama-minami, Tottori 680-8552
| | - Atsushi Sakaguchi
- Department of Information and Electronics, Graduate School of Engineering, Tottori University, 4-101 Koyama-minami, Tottori 680-8552
| | - Kentaro Kinoshita
- Department of Applied Physics, Faculty of Science, Tokyo University of Science, Tokyo 125-8585
| | - Satoru Kishida
- Department of Information and Electronics, Graduate School of Engineering, Tottori University, 4-101 Koyama-minami, Tottori 680-8552
| | - Shuichi Hayase
- Department of Chemistry and Biotechnology, Graduate School of Engineering, Tottori University, 4-101 Koyama-minami, Tottori 680-8552
| | - Toshiki Nokami
- Department of Chemistry and Biotechnology, Graduate School of Engineering, Tottori University, 4-101 Koyama-minami, Tottori 680-8552
- Center for Research on Green Sustainable Chemistry, Graduate School of Engineering, Tottori University, 4-101 Koyama-minami, Tottori 680-8552
| | - Toshiyuki Itoh
- Department of Chemistry and Biotechnology, Graduate School of Engineering, Tottori University, 4-101 Koyama-minami, Tottori 680-8552
- Center for Research on Green Sustainable Chemistry, Graduate School of Engineering, Tottori University, 4-101 Koyama-minami, Tottori 680-8552
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Shiraishi K, Shindo A, Harada A, Kurumizaka H, Kimura H, Ohkawa Y, Matsuyama H. Roles of histone H3.5 in human spermatogenesis and spermatogenic disorders. Andrology 2017; 6:158-165. [DOI: 10.1111/andr.12438] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2017] [Revised: 09/06/2017] [Accepted: 10/02/2017] [Indexed: 12/11/2022]
Affiliation(s)
- K. Shiraishi
- Department of Urology; Yamaguchi University School of Medicine; Ube Yamaguchi Japan
| | - A. Shindo
- Department of Urology; Yamaguchi University School of Medicine; Ube Yamaguchi Japan
| | - A. Harada
- Division of Transcriptomics; Medical Institute of Bioregulation; Kyushu University; Fukuoka Japan
| | - H. Kurumizaka
- Laboratory of Structural Biology; Graduate School of Advanced Science and Engineering; Waseda University; Tokyo Japan
| | - H. Kimura
- Cell Biology Unit; Institute of Innovative Research; Tokyo Institute of Technology; Tokyo Japan
| | - Y. Ohkawa
- Division of Transcriptomics; Medical Institute of Bioregulation; Kyushu University; Fukuoka Japan
| | - H. Matsuyama
- Department of Urology; Yamaguchi University School of Medicine; Ube Yamaguchi Japan
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Oguchi M, Harada A, Taguchi S, Terui Y, Hatake K, Takeuchi K, Fujisaki J. Difference of Relapse Pattern Between Nodal and Gastrointestinal Follicular Lymphomas. Int J Radiat Oncol Biol Phys 2017. [DOI: 10.1016/j.ijrobp.2017.06.330] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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19
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Nakamura M, Nishikawa R, Hashimoto N, Ishihara T, Uezono H, Harada A, Mayahara H, Ejima Y, Nishimura H. Dosimetric Parameters Predicting Local Failure after Stereotactic Body Radiation Therapy Using the Robotic Radiosurgery System for Oligometastatic Lesions in the Lung and Liver. Int J Radiat Oncol Biol Phys 2017. [DOI: 10.1016/j.ijrobp.2017.06.1760] [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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20
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Murofushi K, Tokumasu K, Kuwabara H, Kumai Y, Yoshida M, Harada A, Okubo H, Asari T, Toshiyasu T, Sumi M, Oguchi M. Interim MRI Provides Accurate Information of Brachytherapy for Patients with Locally Advanced Cervical Cancer. Int J Radiat Oncol Biol Phys 2017. [DOI: 10.1016/j.ijrobp.2017.06.1329] [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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Matsuura R, Miyagawa S, Harada A, Toda K, Kikuta J, Ishii M, Sawa Y. 5923Real-time cellular imaging of the beating heart in rat by using two-photon microscopy with an original stabilizer. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx493.5923] [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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22
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Matsui Y, Fujita R, Harada A, Sakurai T, Nemoto T, Toba K. GRIP PERFORMANCE AGILITY MEASURED WITH A NEW DYNAMOMETER IN SUBJECTS OF ALZHEIMER’S DEMENTIA PATIENTS. Innov Aging 2017. [DOI: 10.1093/geroni/igx004.4015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Y. Matsui
- Department of advanced medicine,National Center for Geriatrics and Gerontology, Obu, Japan,
| | - R. Fujita
- National Center for Geriatrics and Gerontology, Obu, Japan
| | - A. Harada
- National Center for Geriatrics and Gerontology, Obu, Japan
| | - T. Sakurai
- National Center for Geriatrics and Gerontology, Obu, Japan
| | - T. Nemoto
- National Center for Geriatrics and Gerontology, Obu, Japan
| | - K. Toba
- National Center for Geriatrics and Gerontology, Obu, Japan
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Oguchi M, Harada A, Terui Y, Hatake K, Takeuchi K, Iwase T. Relapse patterns of Treatment for Primary Breast Lymphomas. Int J Radiat Oncol Biol Phys 2016. [DOI: 10.1016/j.ijrobp.2016.06.1887] [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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24
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Harada A, Toh R, Murakami K, Kiriyama M, Yoshikawa K, Kubo T, Miwa K, Irino Y, Mori K, Tanaka N, Ishida T, Hirata K. A potential role of cholesterol uptake capacity, a new measure for high-density lipoprotein functionality, in coronary risk stratification. Atherosclerosis 2016. [DOI: 10.1016/j.atherosclerosis.2016.07.108] [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: 10/21/2022]
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25
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Watanabe Y, Ogura C, Hatanaka K, Okada Y, Watanabe T, Oishi H, Matsuda Y, Notsuda H, Harada A, Aoki M, Nagata T, Kariatsumari K, Nakamura Y, Sato M, Kondo T. MicroRNA Analysis in a Mouse Heterotopic Tracheal Transplant Model. J Heart Lung Transplant 2016. [DOI: 10.1016/j.healun.2016.01.493] [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] Open
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26
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Kumai Y, Oguchi M, Miyagi Y, Ito Y, Iwase T, Akiyama F, Yoshida K, Harada A, Okubo H, Asari T, Murofushi K, Toshiyasu T, Kozuka T, Sumi M. EP-1164: Outcomes of postmastectomy radiotherapy in patients with 1 to 3 positive nodes in single institute. Radiother Oncol 2016. [DOI: 10.1016/s0167-8140(16)32414-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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27
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Nakamura K, Harada A, Ono M, Shibasaki H, Kanno T, Niwano Y, Adolfsson E, Milleding P, Örtengren U. Effect of low-temperature degradation on the mechanical and microstructural properties of tooth-colored 3Y-TZP ceramics. J Mech Behav Biomed Mater 2016; 53:301-311. [DOI: 10.1016/j.jmbbm.2015.08.031] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2015] [Revised: 08/20/2015] [Accepted: 08/24/2015] [Indexed: 02/04/2023]
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Shiraishi E, Suzuki K, Harada A, Suzuki N, Kimura H. The Phosphodiesterase 10A Selective Inhibitor TAK-063 Improves Cognitive Functions Associated with Schizophrenia in Rodent Models. ACTA ACUST UNITED AC 2015; 356:587-95. [DOI: 10.1124/jpet.115.230482] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2015] [Accepted: 12/16/2015] [Indexed: 12/28/2022]
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Harada A, Yamaoka H, Watanabe K, Kinoshita K, Kishida S, Fukaya Y, Nokami T, Itoh T. Copper Ion-containing Ionic Liquids Provide Improved Endurance and Switching Voltage Distributions of Conducting-bridge Random Access Memory. CHEM LETT 2015. [DOI: 10.1246/cl.150773] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Akinori Harada
- Department of Chemistry and Biotechnology, Graduate School of Engineering, Tottori University
| | - Hiroki Yamaoka
- Department of Chemistry and Biotechnology, Graduate School of Engineering, Tottori University
| | - Kouhei Watanabe
- Department of Information and Electronics, Graduate School of Engineering, Tottori University
| | - Kentaro Kinoshita
- Department of Information and Electronics, Graduate School of Engineering, Tottori University
| | - Satoru Kishida
- Department of Information and Electronics, Graduate School of Engineering, Tottori University
| | - Yukinobu Fukaya
- Center for Research on Green Sustainable Chemistry, Graduate School of Engineering, Tottori University
| | - Toshiki Nokami
- Department of Chemistry and Biotechnology, Graduate School of Engineering, Tottori University
- Center for Research on Green Sustainable Chemistry, Graduate School of Engineering, Tottori University
| | - Toshiyuki Itoh
- Department of Chemistry and Biotechnology, Graduate School of Engineering, Tottori University
- Center for Research on Green Sustainable Chemistry, Graduate School of Engineering, Tottori University
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Ishihara T, Yamada K, Harada A, Isogai K, Miyawaki D, Yoshida K, Ejima Y, Sasaki R. Hypofractionated Stereotactic Radiation Therapy Compared With Stereotactic Radiosurgery for Brain Metastases From Lung Cancer: Experience at a Single-Institution. Int J Radiat Oncol Biol Phys 2015. [DOI: 10.1016/j.ijrobp.2015.07.723] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Miura H, Kizawa Y, Bito S, Onozawa S, Shimizu T, Higuchi N, Goto Y, Takanashi S, Kubokawa N, Senda K, Nishikawa M, Harada A, Toba K. P-88 Benefits of the Japanese version advance care planning facilitator education program. BMJ Support Palliat Care 2015. [DOI: 10.1136/bmjspcare-2015-000978.217] [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: 11/04/2022]
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Takahashi T, Naka A, Aono M, Harada A, Sato Y, Kitajima Y. SUN-LB010: Comparison of Differences of the Living Environment and Nutritional Status in Elderly Dialysis Out-Patients. Clin Nutr 2015. [DOI: 10.1016/s0261-5614(15)30731-7] [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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Nakamura K, Harada A, Kanno T, Inagaki R, Niwano Y, Milleding P, Örtengren U. The influence of low-temperature degradation and cyclic loading on the fracture resistance of monolithic zirconia molar crowns. J Mech Behav Biomed Mater 2015; 47:49-56. [DOI: 10.1016/j.jmbbm.2015.03.007] [Citation(s) in RCA: 57] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2014] [Revised: 03/08/2015] [Accepted: 03/10/2015] [Indexed: 02/04/2023]
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Harada A, Sasaki R, Miyawaki D, Yoshida K, Nishimura H, Ejima Y, Kitajima K, Saito M, Otsuki N, Nibu KI. Treatment outcomes of the patients with early glottic cancer treated with initial radiotherapy and salvaged by conservative surgery. Jpn J Clin Oncol 2014; 45:248-55. [DOI: 10.1093/jjco/hyu203] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [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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35
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Harada A, Oguchi M, Hatake K, Terui Y, Yokoyama M, Takeuchi K, Igarashi M. Primary Radiation Therapy for Localized Duodenal Follicular Lymphoma. Int J Radiat Oncol Biol Phys 2014. [DOI: 10.1016/j.ijrobp.2014.05.1994] [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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Yamada Y, Miyauchi A, Takagi Y, Tanaka M, Mizuno M, Harada A. Association of the C–509→T polymorphism, alone or in combination with the T869→C polymorphism, of the transforming growth factor-β1 gene with bone mineral density and genetic susceptibility to osteoporosis in Japanese women. J Mol Med (Berl) 2014; 79:149-56. [PMID: 11357939 DOI: 10.1007/s001090100190] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
Transforming growth factor-beta1 is an important local regulator of bone metabolism, acting downstream of estrogen and cooperatively with vitamin D. The possible association of a C 509-->T polymorphism in the promoter region of the transforming growth factor-beta1 gene, alone or in combination with a T869-->C (Leu10-->Pro) polymorphism, with bone mineral density and genetic susceptibility to osteoporosis was investigated in 625 postmenopausal Japanese women. The frequencies of the CC, CT, and TT genotypes of the C-509-->T polymorphism in the study population were 24%, 49%, and 27%, respectively. A significant association of C-509-->T genotype with bone mineral density was detected: lumbar spine (L2-L4) and total body bone mineral density values were 7% and 5% lower, respectively, in individuals with the TT genotype than in those with the CT or CC genotype. The serum concentration of transforming growth factor-beta1 did not vary with C-509-->T genotype. Multivariable logistic regression analysis, with adjustment for age, height, body weight, time since menopause, smoking status, body fat mass, and lean mass, revealed a significantly higher frequency of the TT genotype of the C-509-->T polymorphism in 286 individuals with osteoporosis than in 170 normal controls. Analysis of combined C-509-->T and T869-->C genotypes showed that L2-L4 bone mineral density decreases and the prevalence of osteoporosis increases with the number of T alleles. These results suggest that the C-509-->T polymorphism, alone or in combination with the T869-->C polymorphism, of the transforming growth factor-beta1 gene is a genetic determinant of bone mass, and that the number of T alleles in the combined genotype is a risk factor for the genetic susceptibility to osteoporosis in postmenopausal Japanese women.
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Affiliation(s)
- Y Yamada
- Department of Gene Therapy, Gifu International Institute of Biotechnology, Mitake, Japan.
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Nishiyama KK, Ito M, Harada A, Boyd SK. Classification of women with and without hip fracture based on quantitative computed tomography and finite element analysis. Osteoporos Int 2014; 25:619-26. [PMID: 23948875 DOI: 10.1007/s00198-013-2459-6] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/03/2013] [Accepted: 06/27/2013] [Indexed: 10/26/2022]
Abstract
UNLABELLED We used quantitative computed tomography and finite element analysis to classify women with and without hip fracture. Highly accurate classifications were achieved indicating the potential for these methods to be used for subject-specific assessment of fracture risk. INTRODUCTION Areal bone mineral density (aBMD) is the current clinical diagnostic standard for assessing fracture risk; however, many fractures occur in people not defined as osteoporotic by aBMD. Finite element (FE) analysis based on quantitative computed tomography (QCT) images takes into account both bone material and structural properties to provide subject-specific estimates of bone strength. Thus, our objective was to determine if FE estimates of bone strength could classify women with and without hip fracture. METHODS Twenty women with femoral neck fracture and 15 women with trochanteric fractures along with 35 age-matched controls were scanned with QCT at the hip. Since it is unknown how a specific subject will fall, FE analysis was used to estimate bone stiffness and bone failure load under loading configurations with femoral neck internal rotation angles ranging from -30° to 45° with 15° intervals. Support vector machine (SVM) models and a tenfold cross-validation scheme were used to classify the subjects with and without fracture. RESULTS High accuracy was achieved when using only FE analysis for classifying the women with and without fracture both when the fracture types were pooled (82.9 %) and when analyzed separately by femoral neck fracture (87.5 %) and trochanteric fracture (80.0 %). The accuracy was further increased when FE analysis was combined with volumetric BMD (pooled fractures accuracy, 91.4 %) CONCLUSIONS While larger prospective studies are needed, these results demonstrate that FE analysis using multiple loading configurations together with SVM models can accurately classify individuals with previous hip fracture.
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Affiliation(s)
- K K Nishiyama
- Department of Medicine, Columbia University, New York, NY, USA
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Matsui Y, Fujita R, Harada A, Sakurai T, Nemoto T, Noda N, Toba K. A New Grip Strength Measuring Device for Detailed Evaluation of Muscle Contraction among the Elderly. J Frailty Aging 2014; 3:142-7. [PMID: 27050059 DOI: 10.14283/jfa.2014.15] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
BACKGROUND We developed a new grip strength measuring device, which considers the time axis, for evaluating muscle contraction in detail in elderly people. OBJECTIVES To present the novel device and preliminary results concerning agility in gripping. DESIGN Cross-sectional analysis. PARTICIPANTS One hundred and twenty-one older persons (48 men and 73 women, mean age 74.4 years) referring for memory disorders to the outpatient clinic of our institute. MEASUREMENTS A novel device taking advantage of an industrial force-gauge was developed for measuring gripping performance. The instrument graphically described participants' strength production. Nine indices were derived from four points identified by the graph: 1) starting point ("Go signal"), 2) time when gripping starts, 3) turning point (TP) when the inclination of the curve depicting strength production changes, and 4) peak of strength production. Results obtained from the study sample of older persons were compared (as ratios) to a control group of 30 healthy young adults in their thirties in order to calculate age-related decline rates. Differences between right and left side were compared. RESULTS A significant difference was observed between right and left hands concerning the time to reach peak of strength, and time from TP to strength peak in both men and women. For women, the following indices were also significantly different: time to reach TP, strength at TP, time from TP to strength peak, curve inclination from TP to strength peak, and ratio of TP strength divided by peak strength. CONCLUSION Declines in several indices of gripping agility were measured. The parameters which were more closely related to time than strength itself showed significant differences between right and left hands, especially in women.
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Affiliation(s)
- Y Matsui
- Yasumoto Matsui. 35, Gengo, Morioka-cho, Obu City, Aichi 474-8511, Japan. Phone: 81-562-46-2311. Fax: 81-562-44-8518. Email address:
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Yoshikawa K, Harada A, Iseki K, Hashimoto T. Constituents of Caryopteris incana and their antibacterial activity. J Nat Med 2013; 68:231-5. [PMID: 23771561 DOI: 10.1007/s11418-013-0785-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2013] [Accepted: 05/30/2013] [Indexed: 11/29/2022]
Abstract
Two new compounds named caryocanolide (1), and caryocanoside A (2), together with nine known compounds (3-11) were isolated from the whole plant of Caryopteris incana. These structures were determined mainly on the basis of 2D nuclear magnetic resonance and high resolution fast atom bombardment mass spectroscopy data. Furthermore, the isolated compounds (1, 2, 4-11) were tested for their antibacterial activity. Compound 1 exhibited moderate antimicrobial activity against Bacillus subtilis with a minimum inhibitory concentration value of 35.7 μM.
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Affiliation(s)
- Kazuko Yoshikawa
- Faculty of Pharmaceutical Sciences, Tokushima Bunri University, Yamashiro-Cho, Tokushima, 770-8514, Japan,
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Komori K, Suzuki Y, Minamiyama M, Harada A. Occurrence of selected pharmaceuticals in river water in Japan and assessment of their environmental risk. Environ Monit Assess 2013; 185:4529-4536. [PMID: 23054265 DOI: 10.1007/s10661-012-2886-4] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2011] [Accepted: 09/11/2012] [Indexed: 06/01/2023]
Abstract
The existence of pharmaceuticals in the water environment is thought to be a potential problem for aquatic organisms. In this study, we conducted a nationwide survey to clarify the occurrence of 24 selected pharmaceuticals in major Japanese rivers and evaluated their environmental risk to aquatic organisms. We found a total of 22 substances in river waters at concentrations from several nanograms per liter to several micrograms per liter. We found the highest, which was 2.4 μg/L of caffeine, followed by 1.5 μg/L of crotamiton and 1.4 μg/L of sulpiride. We conducted an environmental risk assessment of the 22 pharmaceuticals detected in river water, for which predicted no-effect concentration (PNEC) values for crustacea and algae had been obtained. The measured environmental concentration/PNEC values of four substances, caffeine, carbamazepine, clarithromycin, and ketoprofen, exceeded 0.1 with the maximum value of 9.0 for clarithromycin. As clarithromycin exhibits a high environmental risk to aquatic organisms, particular attention is required.
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Affiliation(s)
- K Komori
- Public Works Research Institute, 1-6 Minamihara, Tsukuba-shi 305-8516, Japan.
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Kobayashi Y, Harada A, Furuta B, Asou H, Kato U, Umeda M. The role of NADRIN, a Rho GTPase-activating protein, in the morphological differentiation of astrocytes. J Biochem 2013; 153:389-98. [DOI: 10.1093/jb/mvt005] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Ishihara T, Yamada K, Harada A, Isogai K, Tonosaki Y, Sasaki R. Hypofractionated Stereotactic Radiation Therapy for Brain Metastases: Exploration of Adhibition and Key Factors Involved in Local Control Rate. Int J Radiat Oncol Biol Phys 2012. [DOI: 10.1016/j.ijrobp.2012.07.2186] [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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Tanaka S, Harada A, Nishihama S, Yoshizuka K. Selective Recovery of Platinum Group Metals from Spent Automobile Catalyst by Integrated Ion Exchange Methods. SEP SCI TECHNOL 2012. [DOI: 10.1080/01496395.2012.672526] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Otsuka T, Harada A, Wakida K, Aoki M, Nagata T, Kariatsumari K, Sakasegawa K, Nakamura Y, Sato M, Nakayama H, Kitajima S. [Resection of malignant fibrous histiocytoma through a combined thoracic and abdominal wall approach]. Kyobu Geka 2012; 65:389-392. [PMID: 22569497] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
We report a case of resection of malignant fibrous histiocytoma (MFH) via combined thoracic and abdominal wall incision reconstructed using GORE DUALMESH. A 60-year-old woman underwent resection of a left lower chest wall tumor. Since the tumor infiltrated into the diaphragm, a part of the left diaphragm and left upper abdominal wall were resected together. The left chest was closed by suturing the diaphragm to the ribs. The resected area of the thoracic and abdominal wall was 12×12 cm and was reconstructed with GORE DUALMESH. She received adjuvant radiotherapy as the tumor cells were detected in the surgical margin of the diaphragm. The patient has remained well without signs of recurrence for 10 months after the operation.
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Affiliation(s)
- T Otsuka
- Department of Thoracic Surgery, Kagoshima University, Japan
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Peng H, Zhang X, Gao X, Zhang Y, Mohammad BI, Jawad HM, Hadi NR, Liang ML, Xie LD, Li HL, Wang HJ, Xu CS, Yip HK, Yip HK, Li ZJ, Kang CS, Chen XY, Zhang YX, Zhao ZX, Song Q, Ren WY, Jin X, Tian C, Zhang R, Long J, Ying CJ, Wang J, Qin XJ, Xie MX, Lv Q, Wang XF, He L, Liu YY, Xie MX, Qin XJ, Wang XF, Lv Q, Zhang L, Zhang J, Xiang FX, Zhang YR, Zhang Y, Huang XR, Wei LH, Meng XM, Yu CM, Lan HY, Kim S, Yang J, Koh E, Harada Y, Inoue N, Okada T, Harada A, Yoshikawa Y, Bekki N, Kanai H. P017 * Inflammatory and endothelial dysfunction biomarkers and cardiovascular disease risk factors among Inner Mongolians in China. Eur Heart J Suppl 2012. [DOI: 10.1093/eurheartj/sur023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Yoshida K, Nishimura H, Miyawaki D, Muraoka O, Harada A, Sulaiman N, Nakabayashi K, Yoshida S, Sasaki R, Sugimura K. 8020 POSTER Radiotherapy for Elderly Patients With Cervical Cancer. Eur J Cancer 2011. [DOI: 10.1016/s0959-8049(11)72108-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Kadota A, Miura K, Shinozaki T, Saitoh S, Kiyohara Y, Adachi H, Kawano H, Momotsu T, Amano H, Onoda T, Ando T, Taguri M, Harada A, Ohashi Y, Ueshima H. SP1-51 Diabetes mellitus, glucose intolerance and the risk of cardiovascular diseases: the Japan atherosclerosis longitudinal study-existing cohorts combine (JALS-ECC). Br J Soc Med 2011. [DOI: 10.1136/jech.2011.142976n.28] [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: 11/04/2022]
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Kimata M, Terashima T, Kurita N, Satsukawa H, Harada A, Kodama K, Sato A, Imai M, Kihou K, Lee CH, Kito H, Eisaki H, Iyo A, Saito T, Fukazawa H, Kohori Y, Harima H, Uji S. Quasi-two-dimensional Fermi surfaces and coherent interlayer transport in KFe₂As₂. Phys Rev Lett 2010; 105:246403. [PMID: 21231539 DOI: 10.1103/physrevlett.105.246403] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/02/2010] [Indexed: 05/30/2023]
Abstract
We report the results of the angular-dependent magnetoresistance oscillations (AMROs), which can determine the shape of bulk Fermi surfaces (FSs) in quasi-two-dimensional (Q2D) systems, in a highly hole-doped Fe-based superconductor KFe2As2 with Tc ≈ 3.7 K. From the AMROs, we determined the two Q2D FSs with rounded-square cross sections, correspond to 12% and 17% of the first Brillouin zone. The rounded-squared shape of the FS cross section is also confirmed by the analyses of the interlayer transport under in-plane fields. From the obtained FS shape, we infer the character of the 3d orbitals that contribute to the FSs.
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Affiliation(s)
- M Kimata
- National Institute for Materials Science, Tsukuba, Ibaraki 305-0003, Japan
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Harada A, Nakamura Y, Fukumori K, Nagata T, Iguro Y. [Negative pressure wound therapy was useful in treating empyema with bronchopleural fistula]. Kyobu Geka 2010; 63:1039-1043. [PMID: 21066844] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
We report a case for whom negative pressure wound therapy (NPWT) was applied for empyema with bronchopleural fistula. The patient was a 64-year-old man with a history of gastric resection and diabetes visited our hospital with chief complaints of fever and respiratory failure. In spite of conservative treatment after being diagnosed as empyema, bronchopleural fistula developed. In order to manage the pyothorax, the bronchopleural fistula was closed with endobronchial Watanabe spigot, and fenestration was subsequently performed, however the infection control and obliteration of the empyema cavity could not be achieved. NPWT with continuous irrigation was therefore chosen, and the methicillin-resistant Staphylococcus aureus (MRSA) disappeared and a marked obliteration of the empyema cavity was observed in 3 weeks after initiation of NPWT. Although the patient died of another illness, NPWT with continuous irrigation was useful in treating empyema with bronchopleural fistula.
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Affiliation(s)
- A Harada
- Department of Thoracic and Cardiovascular Surgery, Hepato-Biliary-Pancreatic Surgery, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima, Japan
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