1
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Toda K, Takagi K, Noguchi T. Silent rapid progression of mycotic left main aneurysm following stenting to bailout for acute occlusion caused by infective endocarditis. Eur Heart J 2023; 44:3932. [PMID: 37351862 DOI: 10.1093/eurheartj/ehad399] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/24/2023] Open
Affiliation(s)
- Kojiro Toda
- Department of Cardiovascular Medicine, National Cerebral and Cardiovascular Center, 6-1 Kishibe-Shimmachi, Suita, Osaka 564-8565, Japan
- Department of Cardiovascular, Renal and Metabolic Medicine, Sapporo Medical University School of Medicine, S1W17 Chuoh-ku, Sapporo, Hokkaido 060-8556, Japan
| | - Kensuke Takagi
- Department of Cardiovascular Medicine, National Cerebral and Cardiovascular Center, 6-1 Kishibe-Shimmachi, Suita, Osaka 564-8565, Japan
| | - Teruo Noguchi
- Department of Cardiovascular Medicine, National Cerebral and Cardiovascular Center, 6-1 Kishibe-Shimmachi, Suita, Osaka 564-8565, Japan
- Department of Advanced Cardiovascular Medicine, Graduate School of Medical Sciences, Kumamoto University, 1 Chome-1-1 Honjo, Chuo Ward, Kumamoto 860-8556, Japan
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2
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Kamakura T, Kamoshida J, Toda K, Wayama K, Wada M, Kusano K. Ventricular fibrillation initiated by reentry involving the Purkinje network in a patient with after myocardial infarction. HeartRhythm Case Rep 2023; 9:618-623. [PMID: 37746568 PMCID: PMC10511930 DOI: 10.1016/j.hrcr.2023.06.006] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/26/2023] Open
Affiliation(s)
- Tsukasa Kamakura
- Department of Cardiovascular Medicine, National Cerebral and Cardiovascular Center, Osaka, Japan
| | - Junichi Kamoshida
- Department of Cardiovascular Medicine, National Cerebral and Cardiovascular Center, Osaka, Japan
- Department of Advanced Cardiovascular Medicine, Graduate School of Medical Sciences, Kumamoto University, Kumamoto, Japan
| | - Kojiro Toda
- Department of Cardiovascular Medicine, National Cerebral and Cardiovascular Center, Osaka, Japan
| | - Keima Wayama
- Department of Cardiovascular Medicine, National Cerebral and Cardiovascular Center, Osaka, Japan
| | - Mitsuru Wada
- Department of Cardiovascular Medicine, National Cerebral and Cardiovascular Center, Osaka, Japan
- Department of Advanced Cardiovascular Medicine, Graduate School of Medical Sciences, Kumamoto University, Kumamoto, Japan
| | - Kengo Kusano
- Department of Cardiovascular Medicine, National Cerebral and Cardiovascular Center, Osaka, Japan
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3
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Mikami T, Kamada T, Yano T, Nakajima T, Yasuda N, Shibata T, Nakanishi K, Harada R, Naraoka S, Toda K, Nagano N, Muranaka A, Kawaharada N. Descending thoracic aorta-abdominal aortic bypass and bilateral renal arterial blood circulation reconstruction are effective in atypical coarctation of the aorta with heart failure: a case report. J Cardiothorac Surg 2021; 16:219. [PMID: 34348745 PMCID: PMC8335882 DOI: 10.1186/s13019-021-01598-5] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2021] [Accepted: 07/27/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND There are a lot of reports of the renal failure and heart failure due to coarctation of the aorta. However, there are no case reports in which revascularization dramatically improved left ventricular function in patients with progressive decline in left ventricular function. Herein, we present a rare case in which the left ventricular function was dramatically improved by surgical treatment for progressive left ventricular dysfunction due to atypical coarctation of the aorta. CASE PRESENTATION A 58-year-old man underwent left axillary artery-bilateral femoral artery bypass at another hospital for atypical coarctation of the aorta due to Takayasu's arteritis. Approximately 10 years later, he was re-hospitalized for heart failure, and the left ventricular ejection fraction gradually decreased to 28%. Computed tomography showed severe calcification and stenosis at the same site from the peripheral thoracic descending aorta to the lower abdominal aorta of the renal artery, and aortography showed delayed bilateral renal artery blood flow. An increase in plasma renin activity was also observed. Despite the administration of multiple antihypertensive drugs, blood pressure control was insufficient. We decided to perform surgical treatment to improve progressive cardiac dysfunction due to increased afterload and activated plasma renin activity. Descending thoracic aorta-abdominal aorta bypass and revascularization of the bilateral renal arteries via the great saphenous vein grafts were performed. Postoperative blood pressure control was improved, and the dose of antihypertensive drugs could be reduced. Plasma renin activity decreased, and transthoracic echocardiography 1.5 years later showed an improvement in contractility with a left ventricular ejection fraction of 58%. CONCLUSION In atypical coarctation of the aorta in patients with decreased bilateral renal blood flow, heart failure due to renal hypertension, and progressive decrease in left ventricular contractility, descending thoracic aorta-abdominal aortic bypass and bilateral renal artery recirculation can be extremely effective.
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Affiliation(s)
- Takuma Mikami
- Department of Cardiovascular Surgery, Sapporo Medical University School of Medicine, 291, Minami 1-jo Nishi 16-chome Chuo-ku, Sapporo, 060-8543, Japan.
| | - Takeshi Kamada
- Department of Cardiovascular Surgery, Sapporo Medical University School of Medicine, 291, Minami 1-jo Nishi 16-chome Chuo-ku, Sapporo, 060-8543, Japan
| | - Toshiyuki Yano
- Department of Cardiovascular, Renal and Metabolic Medicine, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - Tomohiro Nakajima
- Department of Cardiovascular Surgery, Sapporo Medical University School of Medicine, 291, Minami 1-jo Nishi 16-chome Chuo-ku, Sapporo, 060-8543, Japan
| | - Naomi Yasuda
- Department of Cardiovascular Surgery, Sapporo Medical University School of Medicine, 291, Minami 1-jo Nishi 16-chome Chuo-ku, Sapporo, 060-8543, Japan
| | - Tsuyoshi Shibata
- Department of Cardiovascular Surgery, Sapporo Medical University School of Medicine, 291, Minami 1-jo Nishi 16-chome Chuo-ku, Sapporo, 060-8543, Japan
| | - Keitaro Nakanishi
- Department of Cardiovascular Surgery, Sapporo Medical University School of Medicine, 291, Minami 1-jo Nishi 16-chome Chuo-ku, Sapporo, 060-8543, Japan
| | - Ryo Harada
- Department of Cardiovascular Surgery, Sapporo Medical University School of Medicine, 291, Minami 1-jo Nishi 16-chome Chuo-ku, Sapporo, 060-8543, Japan
| | - Syuichi Naraoka
- Department of Cardiovascular Surgery, Sapporo Medical University School of Medicine, 291, Minami 1-jo Nishi 16-chome Chuo-ku, Sapporo, 060-8543, Japan
| | - Kojiro Toda
- Department of Cardiovascular, Renal and Metabolic Medicine, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - Nobutaka Nagano
- Department of Cardiovascular, Renal and Metabolic Medicine, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - Atsuko Muranaka
- Department of Cardiovascular, Renal and Metabolic Medicine, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - Nobuyoshi Kawaharada
- Department of Cardiovascular Surgery, Sapporo Medical University School of Medicine, 291, Minami 1-jo Nishi 16-chome Chuo-ku, Sapporo, 060-8543, Japan
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4
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Nagaho H, Teranishi K, Toda K, Ota S. Application of machine vision-based label-free flow cytometry to analyze t cell products. Cytotherapy 2021. [DOI: 10.1016/s1465324921006204] [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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5
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Asase M, Watanabe T, Takegami M, Nishimura K, Kinugawa K, Nishimura T, Toda K, Saiki Y, Niinami H, Nunoda S, Matsumiya G, Nishimura M, Arai H, Yanase M, Nakatani T, Sakata Y, Ono M, Nin K, Fukushima N. Impact of Type of Left Ventricular Assist Device (LVAD) on Health-Related Quality of Life during Prolonged LVAD Support. J Heart Lung Transplant 2021. [DOI: 10.1016/j.healun.2021.01.1260] [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: 12/01/2022] Open
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6
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Shirakawa T, Koyama Y, Shibata R, Fukui S, Tatsuoka M, Yoshitatsu M, Toda K, Fukuda I, Sawa Y. Automated heart segmentation using a convolutional neural network accelerates 3D model creation for cardiac surgery. Eur Heart J Cardiovasc Imaging 2021. [DOI: 10.1093/ehjci/jeaa356.353] [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] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Funding Acknowledgements
Type of funding sources: Private grant(s) and/or Sponsorship. Main funding source(s): Japan Organization of Occupational Health and Safety
onbehalf
J3D
Introduction
Improvements in cardiovascular imaging have contributed to the accurate diagnosis and treatment of cardiovascular diseases. In recent years, we can find a new demand from surgical departments, i.e., 3D heart models of patients for preoperative simulations. However, a 3D surgical model needs a detailed segmentation of heart structures from clinical images because these details are essential for achieving accurate polygon data of an exact 3D model. Thus, in most cases, manual segmentation is required for complicated heart shapes such as the chamber wall, valves, and papillary muscles, which causes a prolonged duration time.
Purpose
We aim to achieve an automated heart segmentation using a convolutional neural network (CNN) trained using deep learning techniques for the rapid creation of 3D surgical heart models of individual patients.
Methods
We constructed our original CNN program based on the latest artificial intelligence techniques and trained it to extract shapes of the heart from cardiac computed tomography (CT) images. The training data was 361 slices selected from CT scans of 10 patients. We used data augmentation to increase the amount and diversity of the data into 24,052 slices. The training result with the best Intersection over Union (IoU), one of the evaluation metrics used in deep learning, was saved. Finally, we used the best-trained CNN to construct 3D polygon data of two surgical cases of hypertrophic obstructive cardiomyopathy (HOCM) for preoperative assessments.
Results
The IoU attained 0.85 after deep learning. The time required to complete the 3D polygon data for the first HOCM case was 5 minutes for segmentation by the trained CNN and 3 hours for data correction by a human operator. Similarly, the time required for the second case was 5 minutes for segmentation without manual correction. We had to correct the segmentation for the first case because we needed an exact 3D model for the preoperative assessment (Fig. 1). According to our records of the other eight 3D heart models in the lab, the work for a 3D polygon shape from CT images needs a median 30 hours (quartiles 23-50 hours) when the procedure is fully manual and non-continuous with breaks in between.
Conclusion
The CNN-based segmentation aided the constructing heart shapes from cardiac CT images of preoperative patients. Although the performance, reaching IoU of 0.85, was insufficient for fully automatic segmentation, the methodology can shorten the process duration from several hours to several minutes for detailed segmentation of heart structures.
We previously applied the CNN-based segmentation to the aorta, aortic stenosis valves, and atheromatous plaque in clinical images, demonstrating adequate segmentation performance. The proposed methodology can be applied as a fundamental technology of cardiovascular imaging for obtaining the actual structures of a target object as 3D coordinate values or a 3D model within a reasonable duration time.
Abstract Figure 1
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Affiliation(s)
- T Shirakawa
- Suita Tokushukai Hospital, Department of Cardiovascular Surgery, Suita, Japan
| | - Y Koyama
- Sakurabashi-Watanabe Hospital, Department of Diagnostic Radiology and Cardiology, Osaka, Japan
| | - R Shibata
- National Institute of Technology, Gifu College, Motosu, Japan
| | - S Fukui
- Kansai Rosai Hospital, Cardiovascular Surgery, Amagasaki, Japan
| | | | - M Yoshitatsu
- National Hospital Organization Osaka National Hospital, Department of Cardiovascular Surgery, Osaka, Japan
| | - K Toda
- Osaka University Graduate School of Medicine, Department of Cardiovascular Surgery, Suita, Japan
| | - I Fukuda
- Suita Tokushukai Hospital, Department of Cardiovascular Surgery, Suita, Japan
| | - Y Sawa
- Osaka University Graduate School of Medicine, Department of Cardiovascular Surgery, Suita, Japan
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7
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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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8
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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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9
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Yoshida S, Takahara T, Arita Y, Ishii C, Toda K, Kijima T, Yokoyama M, Ishioka J, Matsuoka Y, Saito K, Yoshimura R, Fujii Y. Treatment outcomes of progressive site-directed therapy for oligo-progressive castration-resistant prostate cancer. EUR UROL SUPPL 2020. [DOI: 10.1016/s2666-1683(20)33518-7] [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] Open
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10
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Yoshioka D, Toda K, Miyagawa S, Yoshikawa Y, Hata H, Kainuma S, Kawamura T, Kawamura A, Samura T, Sawa Y. Risk Factors for Renal Failure after Continuous-Flow Left Ventricular Assist Device Implantation. J Heart Lung Transplant 2020. [DOI: 10.1016/j.healun.2020.01.161] [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] Open
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11
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Samura T, Yoshioka D, Toda K, Miyagawa S, Yoshikawa Y, Hata H, Kainuma S, Kawamura T, Kawamura A, Ueno T, Kuratani T, Sawa Y. Impact of Inhalation of Nitric Oxide and Extubation on Hemodynamics of Right Heart in Acute Phase after Left Ventricular Assist Device Implantation. J Heart Lung Transplant 2020. [DOI: 10.1016/j.healun.2020.01.394] [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: 10/24/2022] Open
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12
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Toda K. Are proton pump inhibitors suitable medicines to prevent upper gastrointestinal events due to non-steroidal anti-inflammatory drugs? Osteoarthritis Cartilage 2020; 28:e1-e2. [PMID: 31715294 DOI: 10.1016/j.joca.2019.09.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/06/2019] [Accepted: 09/01/2019] [Indexed: 02/02/2023]
Affiliation(s)
- K Toda
- Department of Orthopedic Surgery, Hiroshima Clinic, Hiroshima, Japan.
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Mori D, Miyagawa S, Kawamura T, Hata H, Ueno T, Toda K, Kuratani T, Kurata H, Nishida H, Sawa Y. P315In-vivo and vitro mitochondrial transfer from adipose-derived mesenchymal stem cell to ischemic cardiomyocyte. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz747.0150] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
Although transplantation of human Adipose-derived Mesenchymal stem cell (hADSC) shows efficacy in the treatment of ischemic cardiomyopathy, its therapeutic mechanisms have not been fully elucidated. It has been already reported that mitochondria transfer to recipient cells have impact on resistance to injury and tissue regeneration, however this phenomenon has not been elucidated in the damaged heart. Therefore, we hypothesized that ADSC transfer own mitochondria to cardiomyocytes in-vivo and in-vitro under ischemic condition, resulting in the functional recovery of cardiomyocyte.
Method and result
Transplantation of hADSC (group A) to the heart surface or sham operation (group C) was performed in rats that were subjected to LAD ligation 2 weeks prior to the treatment (n=10 each). The number of transplant cell was 1x106/body. Three days after transplantation, transferred hADSCs' mitochondria were observed in recipient cardiomyocytes histologically (Figure). Quantitative PCR analysis revealed that mitochondrial genome of recipient myocytes increased over time. The cardiac function assessed with echocardiography was significantly better in group A. Furthermore, live-imaging of hADSC transplantation revealed the suspected transfer of mitochondria to beating heart.
In-vitro, the co-culture of rat cardiomyocytes (rCM) and hADSC was observed with time-lapse photography and demonstrated mitochondrial transfer under the hypoxic condition. The measuring the oxygen consumption rate (OCR) of these cells showed that OCR of rCM was reinforced by co-culture with hADSC conspicuously.
Figure 1
Conclusion
Mitochondrial transfer from hADSC to rCM was suggested in-vivo and in-vitro ischemic condition and suspected to be related to functional recovery of ischemic cardiomyocyte.
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Affiliation(s)
- D Mori
- Osaka University Graduate School of Medicine, Osaka, Japan
| | - S Miyagawa
- Osaka University Graduate School of Medicine, Osaka, Japan
| | - T Kawamura
- Osaka University Graduate School of Medicine, Osaka, Japan
| | - H Hata
- Osaka University Graduate School of Medicine, Osaka, Japan
| | - T Ueno
- Osaka University Graduate School of Medicine, Osaka, Japan
| | - K Toda
- Osaka University Graduate School of Medicine, Osaka, Japan
| | - T Kuratani
- Osaka University Graduate School of Medicine, Osaka, Japan
| | - H Kurata
- Osaka University Graduate School of Medicine, Osaka, Japan
| | - H Nishida
- Osaka University Graduate School of Medicine, Osaka, Japan
| | - Y Sawa
- Osaka University Graduate School of Medicine, Osaka, Japan
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14
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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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15
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Toda K. Comment on "Pharmacological treatments of neuropathic pain: The latest recommendations". Rev Neurol (Paris) 2019; 175:574-575. [PMID: 31540678 DOI: 10.1016/j.neurol.2019.01.398] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2018] [Revised: 01/08/2019] [Accepted: 01/17/2019] [Indexed: 11/18/2022]
Affiliation(s)
- K Toda
- Department of Orthopedic Surgery, Kitahiroshima Town Toyohira Hospital, 4705, Azaka, Kita-Hiroshima Town, Yamagata-gun, 731-1222 Hiroshima, Japan.
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16
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Kimura Y, Seguchi O, Mochizuki H, Iwasaki K, Toda K, Kumai Y, Kuroda K, Nakajima S, Watanabe T, Matsumoto Y, Fukushima S, Yanase M, Fujita T, Kobayashi J, Fukushima N. Role of Gallium-SPECT-CT in Predicting Outcomes of Patients with Ventricular Assist Device-Specific Percutaneous Driveline Infection. J Heart Lung Transplant 2019. [DOI: 10.1016/j.healun.2019.01.800] [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] Open
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17
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Maeda S, Toda K, Hata H, Miyagawa S, Yoshikawa Y, Kainuma S, Kawamura T, Kawamura A, Yoshida S, Ueno T, Kuratani T, Sawa Y. Valvular Disease Management in Patients with Continuous-Flow Left Ventricular Assist Device. J Heart Lung Transplant 2019. [DOI: 10.1016/j.healun.2019.01.906] [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] Open
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18
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Hata H, Toda K, Saiki Y, Ono M, Shiose A, Yoshioka D, Sawa Y. Impact of Concomitant Valve Surgery at the Time of HeartMate II Implantation; Japanese Multicenter Study. J Heart Lung Transplant 2019. [DOI: 10.1016/j.healun.2019.01.948] [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: 11/17/2022] Open
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19
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Fukushima N, Sakaguchi H, Toda K, Kogaki S, Narita J, Ishida H, Hashii Y, Miyamura T, Imadome K. Simultaneous Assessment of Plasma and Peripheral Mononuclear Cells for Multiple Viral Load Quantification in Peripheral Blood of Patients after Heart Transplantation. J Heart Lung Transplant 2019. [DOI: 10.1016/j.healun.2019.01.777] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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20
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Iwasaki K, Seguchi O, Mochizuki H, Kimura Y, Toda K, Kumai Y, Kuroda K, Nakajima S, Watanabe T, Yanase M, Matsumoto Y, Fukushima S, Fujita T, Kobayashi J, Fukushima N. Terminal Ileac Ulcers Mimicked Post-transplantation Lymphoproliferative Disorder in a Heart Recipient Treated With Everolimus: A Case Report. Transplant Proc 2018; 50:4053-4056. [PMID: 30577313 DOI: 10.1016/j.transproceed.2018.08.025] [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] [Received: 08/09/2018] [Accepted: 08/29/2018] [Indexed: 02/07/2023]
Abstract
Post-transplant lymphoproliferative disorder (PTLD) is a well-recognized and potentially fatal complication of cardiac transplantation that commonly involves the gastrointestinal tract. Herein, we report a case of life-threatening gastrointestinal bleeding from recurrent terminal ileac ulcers mimicking PTLD in a heart recipient treated with everolimus (EVL). A 40-year-old man underwent heart transplantation for dilated cardiomyopathy 3 years prior to the current admission and was treated with tacrolimus and EVL. He was admitted to a local hospital because of fever, abdominal pain, and diarrhea. His symptoms persisted and, 3 weeks later, hematochezia occurred; thus, he was transferred to our hospital. As computed tomography and 18F-fluorodeoxyglucose positron emission tomography showed bowel-wall thickening of the terminal ileum, gastrointestinal PTLD was initially suspected. However, although colonoscopy- performed after switching EVL to mycophenolate mofetil (MMF)-showed terminal ileac ulcers, the histologic examination revealed no findings corresponding to PTLD. As EVL may delay ulcer healing, MMF was maintained for 3 months. After repeated colonoscopy showed ulcer healing, MMF was switched back to EVL for cardiac allograft vasculopathy prevention. Three weeks later, he was emergently admitted to a local hospital for life-threatening gastrointestinal bleeding from a recurrent terminal ileal ulcer, which required hemostatic forceps hemostasis. As EVL is suspected to be associated with recurrent ileal ulcers, EVL was again switched back to MMF. The ileal ulcers resolved, without recurrence in 3 months of clinical follow-up. This case demonstrates that cases of life-threatening gastrointestinal bleeding from recurrent terminal ileac ulcers can mimic PTLD in a heart recipient treated with EVL.
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Affiliation(s)
- K Iwasaki
- Department of Transplant Medicine, National Cerebral and Cardiovascular Center, Suita, Osaka, Japan
| | - O Seguchi
- Department of Transplant Medicine, National Cerebral and Cardiovascular Center, Suita, Osaka, Japan
| | - H Mochizuki
- Department of Transplant Medicine, National Cerebral and Cardiovascular Center, Suita, Osaka, Japan
| | - Y Kimura
- Department of Transplant Medicine, National Cerebral and Cardiovascular Center, Suita, Osaka, Japan
| | - K Toda
- Department of Transplant Medicine, National Cerebral and Cardiovascular Center, Suita, Osaka, Japan
| | - Y Kumai
- Department of Transplant Medicine, National Cerebral and Cardiovascular Center, Suita, Osaka, Japan
| | - K Kuroda
- Department of Transplant Medicine, National Cerebral and Cardiovascular Center, Suita, Osaka, Japan
| | - S Nakajima
- Department of Transplant Medicine, National Cerebral and Cardiovascular Center, Suita, Osaka, Japan
| | - T Watanabe
- Department of Transplant Medicine, National Cerebral and Cardiovascular Center, Suita, Osaka, Japan
| | - M Yanase
- Department of Transplant Medicine, National Cerebral and Cardiovascular Center, Suita, Osaka, Japan
| | - Y Matsumoto
- Department of Cardiovascular Surgery, National Cerebral and Cardiovascular Center, Suita, Osaka, Japan
| | - S Fukushima
- Department of Cardiovascular Surgery, National Cerebral and Cardiovascular Center, Suita, Osaka, Japan
| | - T Fujita
- Department of Cardiovascular Surgery, National Cerebral and Cardiovascular Center, Suita, Osaka, Japan
| | - J Kobayashi
- Department of Cardiovascular Surgery, National Cerebral and Cardiovascular Center, Suita, Osaka, Japan
| | - N Fukushima
- Department of Transplant Medicine, National Cerebral and Cardiovascular Center, Suita, Osaka, Japan.
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21
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Nakamura Y, Yoshioka D, Miyagawa S, Yoshikawa Y, Hata H, Matsuura R, Toda K, Sawa Y. Successful Heart Transplantation After Desensitization in a Patient With Extremely High Panel-Reactive Antibody Levels and Pretransplant Donor-Specific Antibody: A Case Report. Transplant Proc 2018; 50:4067-4070. [DOI: 10.1016/j.transproceed.2018.08.058] [Citation(s) in RCA: 2] [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] [Received: 05/07/2018] [Accepted: 08/16/2018] [Indexed: 11/17/2022]
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22
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Iwasaki K, Kimura Y, Toda K, Kikuchi N, Kumai Y, Kuroda K, Seguchi O, Yanase M, Matsumoto Y, Fujita T, Kobayashi J, Fukushima N. Impact of Creatinine Excretion Rate, a Maker of Sarcopenia, on Prediction of Mortality and Neurological Events in Advanced Heart Failure Patients With Left Ventricular Assist Device. J Heart Lung Transplant 2018. [DOI: 10.1016/j.healun.2018.01.700] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022] Open
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23
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Saito S, Toda K, Miyagawa S, Yoshikawa Y, Hata H, Domae K, Matsuura R, Sakata Y, Sawa Y. Hemodynamic Response to Continuous-flow Left Ventricular Assist Device Ramp Test and Volume Loading Predicts Successful Weaning from the Device Support. J Heart Lung Transplant 2018. [DOI: 10.1016/j.healun.2018.01.435] [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: 11/17/2022] Open
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24
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Nakamura Y, Saito S, Miyagawa S, Yoshikawa Y, Domae K, Matsuura R, Toda K, Sawa Y. Perioperative Ischemic Reperfusion Injury, Aggravated by Prolonged Cardiac Ischemic Time, May Cause Temporary Deterioration of Allograft Function. J Heart Lung Transplant 2018. [DOI: 10.1016/j.healun.2018.01.1115] [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] Open
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25
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Samura T, Asanoi H, Toda K, Yoshioka D, Miyagawa S, Yoshikawa Y, Hata H, Saito S, Domae K, Matsuura R, Sawa Y. Usefulness of Analyzing Right Atrial Pressure Waveform to Predict Right Ventricular Failure After Left Ventricular Assist Device Implantation. J Heart Lung Transplant 2018. [DOI: 10.1016/j.healun.2018.01.438] [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] Open
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26
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Tsukamoto Y, Ohtani T, Shiraki T, Ichibori Y, Saito S, Hikoso S, Toda K, Yamaguchi O, Sawa Y, Sakata Y. Baseline and 1-year Follow-up Serial Optical Coherence Tomography Evaluation of Coronary Plaques in Heart Transplant Recipients. J Heart Lung Transplant 2018. [DOI: 10.1016/j.healun.2018.01.1067] [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: 11/17/2022] Open
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27
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Saito S, Toda K, Miyagawa S, Yoshikawa Y, Hata H, Domae K, Matsuura R, Ueno T, Kuratani T, Sawa Y. New Heart Allocation System to Rescue the Patients With Severe Biventricular Failure. J Heart Lung Transplant 2018. [DOI: 10.1016/j.healun.2018.01.878] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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28
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Duarte SMB, Stefano JT, Miele L, Ponziani FR, Souza-Basqueira M, Okada LSRR, de Barros Costa FG, Toda K, Mazo DFC, Sabino EC, Carrilho FJ, Gasbarrini A, Oliveira CP. Gut microbiome composition in lean patients with NASH is associated with liver damage independent of caloric intake: A prospective pilot study. Nutr Metab Cardiovasc Dis 2018; 28:369-384. [PMID: 29482963 DOI: 10.1016/j.numecd.2017.10.014] [Citation(s) in RCA: 83] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/13/2017] [Revised: 10/09/2017] [Accepted: 10/13/2017] [Indexed: 02/07/2023]
Abstract
BACKGROUND AND AIM The aim of the study was to compare the gut microbiomes from obese and lean patients with or without NASH to outline phenotypic differences. METHODS AND RESULTS We performed a cross-sectional pilot study comprising biopsy-proven NASH patients grouped according to BMI. Microbiome DNA was extracted from stool samples, and PCR amplification was performed using primers for the V4 region of the 16S rRNA gene. The amplicons were sequenced using the Ion PGM Torrent platform, and data were analyzed using QIIME software. Macronutrient consumption was analyzed by a 7-day food record. Liver fibrosis ≥ F2 was associated with increased abundance of Lactobacilli (p = 0.0007). NASH patients showed differences in Faecalibacterium, Ruminococcus, Lactobacillus and Bifidobacterium abundance compared with the control group. Lean NASH patients had a 3-fold lower abundance of Faecalibacterium and Ruminococcus (p = 0.004), obese NASH patients were enriched in Lactobacilli (p = 0.002), and overweight NASH patients had reduced Bifidobacterium (p = 0.018). Moreover, lean NASH patients showed a deficiency in Lactobacillus compared with overweight and obese NASH patients. This group also appeared similar to the control group with regard to gut microbiome alpha diversity. Although there were qualitative differences between lean NASH and overweight/obese NASH, they were not statistically significant (p = 0.618). The study limitations included a small sample size, a food questionnaire that collected only qualitative and semi-quantitative data, and variations in group gender composition that may influence differences in FXR signaling, bile acids metabolism and the composition of gut microbiota. CONCLUSION Our preliminary finding of a different pathogenetic process in lean NASH patients needs to be confirmed by larger studies, including those with patient populations stratified by sex and dietary habits.
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Affiliation(s)
- S M B Duarte
- Divisao de Gastroenterologia e Hepatologia, Departamento de Gastroenterologia (LIM-07), Faculdade de Medicina FMUSP, Universidade de Sao Paulo, Sao Paulo, SP, Brazil
| | - J T Stefano
- Divisao de Gastroenterologia e Hepatologia, Departamento de Gastroenterologia (LIM-07), Faculdade de Medicina FMUSP, Universidade de Sao Paulo, Sao Paulo, SP, Brazil
| | - L Miele
- Division of Internal Medicine, Gastroenterology and Hepatology, Area Gastroenterologica, Fondazione Policlinico Universitario Agostino Gemelli Università Cattolica del Sacro Cuore, Rome, Italy.
| | - F R Ponziani
- Division of Internal Medicine, Gastroenterology and Hepatology, Area Gastroenterologica, Fondazione Policlinico Universitario Agostino Gemelli Università Cattolica del Sacro Cuore, Rome, Italy
| | - M Souza-Basqueira
- Departamento de Doenças Infecciosas e Instituto de Medicina Tropical, Faculdade de Medicina FMUSP, Universidade de Sao Paulo, Sao Paulo, SP, Brazil
| | - L S R R Okada
- Divisao de Gastroenterologia e Hepatologia, Departamento de Gastroenterologia (LIM-07), Faculdade de Medicina FMUSP, Universidade de Sao Paulo, Sao Paulo, SP, Brazil
| | - F G de Barros Costa
- Divisao de Gastroenterologia e Hepatologia, Departamento de Gastroenterologia (LIM-07), Faculdade de Medicina FMUSP, Universidade de Sao Paulo, Sao Paulo, SP, Brazil
| | - K Toda
- Divisao de Gastroenterologia e Hepatologia, Departamento de Gastroenterologia (LIM-07), Faculdade de Medicina FMUSP, Universidade de Sao Paulo, Sao Paulo, SP, Brazil
| | - D F C Mazo
- Divisao de Gastroenterologia e Hepatologia, Departamento de Gastroenterologia (LIM-07), Faculdade de Medicina FMUSP, Universidade de Sao Paulo, Sao Paulo, SP, Brazil
| | - E C Sabino
- Departamento de Doenças Infecciosas e Instituto de Medicina Tropical, Faculdade de Medicina FMUSP, Universidade de Sao Paulo, Sao Paulo, SP, Brazil
| | - F J Carrilho
- Divisao de Gastroenterologia e Hepatologia, Departamento de Gastroenterologia (LIM-07), Faculdade de Medicina FMUSP, Universidade de Sao Paulo, Sao Paulo, SP, Brazil
| | - A Gasbarrini
- Division of Internal Medicine, Gastroenterology and Hepatology, Area Gastroenterologica, Fondazione Policlinico Universitario Agostino Gemelli Università Cattolica del Sacro Cuore, Rome, Italy
| | - C P Oliveira
- Divisao de Gastroenterologia e Hepatologia, Departamento de Gastroenterologia (LIM-07), Faculdade de Medicina FMUSP, Universidade de Sao Paulo, Sao Paulo, SP, Brazil.
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Taira M, Ueno T, Kido T, Kanaya T, Okuda N, Matsunaga Y, Toda K, Kuratani T, Sawa Y. Long Term Results of Mechanical Circulatory Support as Bridge to Transplant in Severe Heart Failure Pediatric Patients. J Heart Lung Transplant 2018. [DOI: 10.1016/j.healun.2018.01.1057] [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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30
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Kobayashi M, Takeuchi M, Abe K, Suzuki M, Toda K, Ikeguchi R, Shirai Y, Mizuno S, Yoshizawa H, Kitagawa K. Mr neurography in chronic inflammatory demyelinating polyneuropathy. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.3547] [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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31
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Toda K, Toriihara A, Nakagawa K, Kojima M, Nagano T, Tateishi U, Yoshimura R. Time Dependency of Volume-Based Metabolic Parameters Obtained by Dual-Time-Point TOF-PET/CT for Head and Neck Squamous Cell Cancer. Int J Radiat Oncol Biol Phys 2017. [DOI: 10.1016/j.ijrobp.2017.06.1504] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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32
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Oyama N, Sakaguchi M, Higashida K, Murase S, Gon Y, Watanabe A, Terasaki Y, Todo K, Sasaki T, Yamamoto J, Saito S, Toda K, Sawa Y, Mochizuki H. Remarkable effect of a phosphodiesterase type 3 inhibitor, milrinone in a reversible cerebral vasoconstriction syndrome patient with ischemic stroke: A case report. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.1808] [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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33
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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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34
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Ozaki Y, Watanabe H, Kaida A, Miura M, Nakagawa K, Toda K, Yoshimura R, Sumi Y, Kurabayashi T. Estimation of whole-body radiation exposure from brachytherapy for oral cancer using a Monte Carlo simulation. J Radiat Res 2017; 58:523-528. [PMID: 28339846 PMCID: PMC5570130 DOI: 10.1093/jrr/rrx002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/22/2016] [Revised: 08/23/2016] [Accepted: 12/18/2016] [Indexed: 06/06/2023]
Abstract
Early stage oral cancer can be cured with oral brachytherapy, but whole-body radiation exposure status has not been previously studied. Recently, the International Commission on Radiological Protection Committee (ICRP) recommended the use of ICRP phantoms to estimate radiation exposure from external and internal radiation sources. In this study, we used a Monte Carlo simulation with ICRP phantoms to estimate whole-body exposure from oral brachytherapy. We used a Particle and Heavy Ion Transport code System (PHITS) to model oral brachytherapy with 192Ir hairpins and 198Au grains and to perform a Monte Carlo simulation on the ICRP adult reference computational phantoms. To confirm the simulations, we also computed local dose distributions from these small sources, and compared them with the results from Oncentra manual Low Dose Rate Treatment Planning (mLDR) software which is used in day-to-day clinical practice. We successfully obtained data on absorbed dose for each organ in males and females. Sex-averaged equivalent doses were 0.547 and 0.710 Sv with 192Ir hairpins and 198Au grains, respectively. Simulation with PHITS was reliable when compared with an alternative computational technique using mLDR software. We concluded that the absorbed dose for each organ and whole-body exposure from oral brachytherapy can be estimated with Monte Carlo simulation using PHITS on ICRP reference phantoms. Effective doses for patients with oral cancer were obtained.
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Affiliation(s)
- Y. Ozaki
- Department of Oral and Maxillofacial Radiology, Graduate School, Tokyo Medical and Dental University, Yushima 1-5-45, Bunkyo-ku, Tokyo, 113-8549, Japan
| | - H. Watanabe
- Department of Oral and Maxillofacial Radiology, Graduate School, Tokyo Medical and Dental University, Yushima 1-5-45, Bunkyo-ku, Tokyo, 113-8549, Japan
| | - A. Kaida
- Department of Oral Radiation Oncology, Graduate School, Tokyo Medical and Dental University, Yushima 1-5-45, Bunkyo-ku, Tokyo, 113-8549, Japan
| | - M. Miura
- Department of Oral Radiation Oncology, Graduate School, Tokyo Medical and Dental University, Yushima 1-5-45, Bunkyo-ku, Tokyo, 113-8549, Japan
| | - K. Nakagawa
- Department of Radiation Therapeutics and Oncology, Graduate School, Tokyo Medical and Dental University, Yushima 1-5-45, Bunkyo-ku, Tokyo, 113-8549, Japan
| | - K. Toda
- Department of Radiation Therapeutics and Oncology, Graduate School, Tokyo Medical and Dental University, Yushima 1-5-45, Bunkyo-ku, Tokyo, 113-8549, Japan
| | - R. Yoshimura
- Department of Radiation Therapeutics and Oncology, Graduate School, Tokyo Medical and Dental University, Yushima 1-5-45, Bunkyo-ku, Tokyo, 113-8549, Japan
| | - Y. Sumi
- Center of Advanced Medicine for Dental and Oral Diseases, National Center for Geriatrics and Gerontology, Moriokacho 7-430, Obu-shi, Aichi, Obu, 474-8511, Japan
| | - T. Kurabayashi
- Department of Oral and Maxillofacial Radiology, Graduate School, Tokyo Medical and Dental University, Yushima 1-5-45, Bunkyo-ku, Tokyo, 113-8549, Japan
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35
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Tsukamoto Y, Ohtani T, Shiraki T, Ichibori Y, Saito S, Awata M, Toda K, Yamaguchi O, Sawa Y, Sakata Y. Serial Evaluation of Plaque Characteristics in Coronary Artery Lesions Using Optical Coherence Tomography After Heart Transplantation. J Heart Lung Transplant 2017. [DOI: 10.1016/j.healun.2017.01.1453] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
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36
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Nakagawa H, Kim SW, Hasegawa T, Hasegawa S, Ishigaki T, Uematsu K, Toda K, Takaba H, Sato M. Stabilization of novel high temperature phase yellow-emitting σ-type (Ba1−x−yEuxMgy)2P2O7 phosphors using a melt synthesis technique. Inorg Chem Front 2017. [DOI: 10.1039/c7qi00359e] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Novel high-temperature phase σ-type (Ba1−x−yEuxMgy)2P2O7 phosphors were synthesized for the first time by a melt synthesis technique using an arc-imaging furnace.
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Affiliation(s)
- H. Nakagawa
- Graduate School of Science and Technology
- Niigata University
- Niigata 950-2181
- Japan
| | - S. W. Kim
- Electronic Convergence Materials Division
- Optic & Display Materials Center
- Korea Institute of Ceramic Engineering and Technology
- Jinju-si
- Republic of Korea
| | - T. Hasegawa
- Graduate School of Science and Technology
- Niigata University
- Niigata 950-2181
- Japan
- Department of Marine Resource Science
| | - S. Hasegawa
- Graduate School of Science and Technology
- Niigata University
- Niigata 950-2181
- Japan
| | - T. Ishigaki
- Graduate School of Science and Technology
- Niigata University
- Niigata 950-2181
- Japan
| | - K. Uematsu
- Graduate School of Science and Technology
- Niigata University
- Niigata 950-2181
- Japan
| | - K. Toda
- Graduate School of Science and Technology
- Niigata University
- Niigata 950-2181
- Japan
| | - H. Takaba
- Department of Environmental and Energy Chemistry
- Faculty of Engineering
- Kogakuin University
- Hachioji
- Japan
| | - M. Sato
- Department of Chemistry and Chemical Engineering
- Niigata University
- Niigata 950-2181
- Japan
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37
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Kim SW, Hasegawa T, Muto M, Toda A, Kaneko T, Sugimoto K, Uematsu K, Ishigaki T, Toda K, Sato M, Koide J, Toda M, Kudo Y. Improvement of luminescence properties of rubidium vanadate, RbVO3, phosphors by erbium doping in the crystal lattice. NEW J CHEM 2017. [DOI: 10.1039/c6nj03823a] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The thermal quenching effect of RbVO3 phosphor was effectively improved by Er3+ doping into the lattice, as a result, the emission intensity of the phosphor was successfully enhanced.
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38
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Yuasa-Nakagawa K, Yoshimura R, Toda K, Shibuya H, Kojima M. 382P The therapeutic changes influence on the treatment results of the hypopharyngeal cancer. Ann Oncol 2016. [DOI: 10.1093/annonc/mdw587.024] [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: 11/12/2022] Open
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39
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Yuasa-Nakagawa K, Yoshimura R, Toda K, Shibuya H, Kojima M. 382P The therapeutic changes influence on the treatment results of the hypopharyngeal cancer. Ann Oncol 2016. [DOI: 10.1016/s0923-7534(21)00540-8] [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: 10/22/2022] Open
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40
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Abstract
In a previous experiment, we found that masseter muscle spindles show functional plasticity after 5 to 15 days under increased occlusal vertical dimension (iOVD). In the present study, we hypothesized that spindle function would eventually recover if longer observation periods were allowed. Therefore, in this study we investigated changes in masseter muscle spindle function over periods of 1 day to 8 weeks. Masseter muscle-spindle responses to ramp-and-hold jaw stretches were recorded from the mesencephalic trigeminal nucleus in 35 barbiturate-anesthetized female Wistar rats. The rats were previously divided into Control and iOVD groups, and those in the iOVD group received a 2.0-mm composite resin build-up to the maxillary molars. In this condition, there were no statistically significant differences in masseter muscle spindle sensitivity between Control and iOVD in the six- and eight-week subgroups. Our results further indicate a high degree of adaptability in masseter muscle spindle function following changes in OVD.
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Affiliation(s)
- T Yabushita
- Orthodontic Science, Department of Orofacial Development and Function, Division of Oral Health Sciences, Graduate School, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo 113-8549, Japan.
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41
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Abstract
Several studies have suggested the jaw-muscle spindle as the receptor responsible for regulating and maintaining the occlusal vertical dimension (OVD). However, to challenge this assumption, we hypothesized that long-term changes in OVD could affect the sensory inputs from jaw-muscle spindles. In this study, we investigated changes in masseter muscle spindle function under an increased OVD (iOVD) condition. Responses of primary and secondary endings of masseter muscle spindles to cyclic sinusoidal stretches were investigated. Twenty barbiturate-anesthetized female Wistar rats were divided into control and iOVD groups. Rats in the iOVD group received a 2.0-mm composite resin build-up to the maxillary molars. After iOVD, masseter muscle spindle sensitivity gradually decreased. Primary and secondary spindle endings were affected differently. We conclude that iOVD caused reduction in masseter muscle spindle sensitivity. This result suggests that peripheral sensory plasticity may occur following changes in OVD. Such changes may provide a basis for physiological adaptation to clinical occlusal adjustments.
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Affiliation(s)
- T Yabushita
- Orthodontic Science, Department of Orofacial Development and Function, Division of Oral Health Sciences, Graduate School, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo 113-8549.
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42
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Kuwabara H, Toriihara A, Nakagawa K, Toda K, Tateishi U, Yoshimura R. Utility of Metabolic Tumor Burden Calculated From Dual-Time-Point FDG Positron Emission Tomography/Computed Tomography to Evaluate Prognostic Value of Oropharyngeal or Hypopharyngeal Cancer. Int J Radiat Oncol Biol Phys 2016. [DOI: 10.1016/j.ijrobp.2016.06.1559] [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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43
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Gayi E, Ismail H, Neff L, Patthey-Vuadens O, Toda K, Ruegg U, Scapozza L, Dorchies O. Lack of estrogens impairs motor function and muscle structure in dystrophic mice. Neuromuscul Disord 2016. [DOI: 10.1016/j.nmd.2016.06.162] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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44
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Nakatani T, Sase K, Oshiyama H, Akiyama M, Horie M, Nawata K, Nishinaka T, Tanoue Y, Toda K, Tozawa M, Yanase M, Yamazaki S, Ishida M, Hiramatsu A, Kitamura S. Report of Japanese Registry for Mechanically Assisted Circulatory Support (J-MACS) - Non-Pulsatile Implantable LVAS vs. Extracorporeal LVAD as Bridge to Transplantation. J Heart Lung Transplant 2016. [DOI: 10.1016/j.healun.2016.01.954] [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] Open
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45
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Nakamoto K, Ohtani T, Kioka H, Tsukamoto Y, Yoshioka D, Saito S, Toda K, Sawa Y, Sakata Y. Considering LV Dimension Is Important in Assessing the Risk of Right Ventricular Failure after Left Ventricular Assist Device Implantation. J Heart Lung Transplant 2016. [DOI: 10.1016/j.healun.2016.01.1104] [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] Open
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46
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Sato M, Kim S, Shimomura Y, Hasegawa T, Toda K, Adachi G. Rare Earth-Doped Phosphors for White Light-Emitting Diodes. Including Actinides 2016. [DOI: 10.1016/bs.hpcre.2016.03.001] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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47
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Kim SW, Hasegawa T, Hasegawa S, Yamanashi R, Nakagawa H, Toda K, Ishigaki T, Uematsu K, Sato M. Improved synthesis of SrLiAl3N4:Eu2+ phosphor using complex nitride raw material. RSC Adv 2016. [DOI: 10.1039/c6ra14107b] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Narrow band deep-red emission SrLiAl3N4:Eu2+ phosphor was effectively synthesized using complex nitride Sr3Al2N4 and Li3AlN2 as raw materials. The phosphor exhibited strong deep-red emission peaking at 654 nm under excitation at 450 nm.
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Affiliation(s)
- S. W. Kim
- Graduate School of Science and Technology
- Niigata University
- Niigata 950-2181
- Japan
- Department of Nanotechnology and Advanced Material Engineering
| | - T. Hasegawa
- Graduate School of Science and Technology
- Niigata University
- Niigata 950-2181
- Japan
| | - S. Hasegawa
- Graduate School of Science and Technology
- Niigata University
- Niigata 950-2181
- Japan
| | - R. Yamanashi
- Graduate School of Science and Technology
- Niigata University
- Niigata 950-2181
- Japan
| | - H. Nakagawa
- Graduate School of Science and Technology
- Niigata University
- Niigata 950-2181
- Japan
| | - K. Toda
- Graduate School of Science and Technology
- Niigata University
- Niigata 950-2181
- Japan
| | - T. Ishigaki
- Graduate School of Science and Technology
- Niigata University
- Niigata 950-2181
- Japan
| | - K. Uematsu
- Department of Chemistry and Chemical Engineering
- Niigata University
- Niigata 950-2181
- Japan
| | - M. Sato
- Department of Chemistry and Chemical Engineering
- Niigata University
- Niigata 950-2181
- Japan
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48
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Murata M, Hasegawa K, Kanazawa I, Shirakura K, Kochi K, Shimazu R, Kimura T, Yoshida K, Abe T, Kurita K, Yoshizawa K, Tamaoka A, Nakano I, Shimizu T, Hattori N, Mizusawa H, Kuno S, Yokochi F, Hirabayashi K, Horiuchi E, Kawashima N, Koike R, Ishikawa A, Kuriyama M, Mizoguchi K, Mitake S, Washimi Y, Tatsuoka Y, Fujimura H, Toda K, Kondo T, Nakashima K, Nomoto M, Uozumi T, Sato A, Matsuo H, Tsuruta K. Randomized placebo‐controlled trial of zonisamide in patients with Parkinson's disease. ACTA ACUST UNITED AC 2015. [DOI: 10.1111/ncn3.12026] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- Miho Murata
- Department of Neurology National Center Hospital National Center of Neurology and Psychiatry Tokyo Japan
| | - Kazuko Hasegawa
- Department of Neurology Sagamihara National Hospital SagamiharaTokyo Japan
| | - Ichiro Kanazawa
- International University of Health and Welfare Graduate School Tokyo Japan
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49
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Kawai M, Yoshizawa N, Imokawa G, Okamoto K, Toda K. Acrolein vapor fixation in electron microscopy of the horny layer. Curr Probl Dermatol 2015; 11:207-14. [PMID: 6197242 DOI: 10.1159/000408676] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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50
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