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Sekine A, Watanabe T, Nakabo A, Ichiryu H, Endo S, Hayashi M, Naruse G, Nakayama J, Takada A, Fujimoto S, Ozawa N, Inada T, Nohisa Y, Kikuchi R, Kanamori H, Okura H. Sitting maneuver to uncover latent left ventricular outflow tract obstruction in patients without hypertrophic cardiomyopathy. J Cardiol 2024; 83:401-406. [PMID: 38000537 DOI: 10.1016/j.jjcc.2023.11.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/04/2023] [Revised: 11/13/2023] [Accepted: 11/16/2023] [Indexed: 11/26/2023]
Abstract
BACKGROUND Left ventricular outflow tract obstruction [LVOTO; pressure gradient (PG) ≥30 mmHg] is observed in some patients without hypertrophic cardiomyopathy (HCM), and it may develop especially in older patients without HCM (non-HCM). The aim of this study is to investigate if the Valsalva or an upright sitting maneuver can unveil latent LVOTO in patients with non-HCM. METHODS A total of 33 non-HCM patients with a late peaking or dagger-shaped pulsed Doppler waveform of the LVOT and PG <30 mmHg were included. The Doppler flow velocity of the LVOT was measured at rest, after the Valsalva and a sitting maneuver. Peak PG of ≥30 mmHg after either maneuver was defined as latent LVOTO. The angle between the left ventricular septum and the aorta in the parasternal long-axis view and the apical three-chamber view was measured. RESULTS Twenty (61 %) of the 33 patients (mean age 74 ± 9 years) were diagnosed with latent LVOTO. Of these, five (25 %) patients were diagnosed after both the Valsalva and sitting maneuver, and 15 (75 %) were diagnosed only after the sitting maneuver. The latent LVOTO group had a significantly smaller angle than the no-LVOTO group between the ventricular septum and the aorta in the parasternal long axis views (107 ± 8° vs. 117 ± 8°, p < 0.01). CONCLUSION The sitting maneuver is better than the Valsalva maneuver in unveiling latent LVOTO in older, non-HCM patients.
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Affiliation(s)
- Ayako Sekine
- Division of Clinical Laboratory, Gifu University Hospital, Gifu, Japan
| | - Takatomo Watanabe
- Division of Clinical Laboratory, Gifu University Hospital, Gifu, Japan; Department of Cardiology, Gifu University Graduate School of Medicine, Gifu, Japan.
| | - Ayumi Nakabo
- Department of Cardiology, Gifu University Graduate School of Medicine, Gifu, Japan
| | - Hajime Ichiryu
- Department of Cardiology, Gifu University Graduate School of Medicine, Gifu, Japan
| | - Susumu Endo
- Department of Cardiology, Gifu University Graduate School of Medicine, Gifu, Japan
| | - Misayo Hayashi
- Department of Cardiology, Gifu University Graduate School of Medicine, Gifu, Japan
| | - Genki Naruse
- Department of Cardiology, Gifu University Graduate School of Medicine, Gifu, Japan
| | - Juri Nakayama
- Division of Clinical Laboratory, Gifu University Hospital, Gifu, Japan
| | - Ayae Takada
- Division of Clinical Laboratory, Gifu University Hospital, Gifu, Japan
| | - Shingo Fujimoto
- Division of Clinical Laboratory, Gifu University Hospital, Gifu, Japan
| | - Noriko Ozawa
- Division of Clinical Laboratory, Gifu University Hospital, Gifu, Japan
| | - Takayuki Inada
- Division of Clinical Laboratory, Gifu University Hospital, Gifu, Japan
| | - Yuzuru Nohisa
- Division of Clinical Laboratory, Gifu University Hospital, Gifu, Japan
| | - Ryosuke Kikuchi
- Division of Clinical Laboratory, Gifu University Hospital, Gifu, Japan
| | - Hiromitsu Kanamori
- Department of Cardiology, Gifu University Graduate School of Medicine, Gifu, Japan
| | - Hiroyuki Okura
- Division of Clinical Laboratory, Gifu University Hospital, Gifu, Japan; Department of Cardiology, Gifu University Graduate School of Medicine, Gifu, Japan
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2
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Sahashi Y, Takeshita R, Watanabe T, Ishihara T, Sekine A, Watanabe D, Ishihara T, Ichiryu H, Endo S, Fukuoka D, Hara T, Okura H. Development of artificial intelligence-based slow-motion echocardiography and clinical usefulness for evaluating regional wall motion abnormalities. Int J Cardiovasc Imaging 2024; 40:385-395. [PMID: 37940734 DOI: 10.1007/s10554-023-02997-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Accepted: 10/27/2023] [Indexed: 11/10/2023]
Abstract
The diagnostic accuracy of exercise stress echocardiography (ESE) for myocardial ischemia requires improvement, given that it currently depends on the physicians' experience and image quality. To address this issue, we aimed to develop artificial intelligence (AI)-based slow-motion echocardiography using inter-image interpolation. The clinical usefulness of this method was evaluated for detecting regional wall-motion abnormalities (RWMAs). In this study, an AI-based echocardiographic image-interpolation pipeline was developed using optical flow calculation and prediction for in-between images. The accuracy for detecting RWMAs and image readability among 25 patients with RWMA and 25 healthy volunteers was compared between four cardiologists using slow-motion and conventional ESE. Slow-motion echocardiography was successfully developed for arbitrary time-steps (e.g., 0.125×, and 0.5×) using 1,334 videos. The RWMA detection accuracy showed a numerical improvement, but it was not statistically significant (87.5% in slow-motion echocardiography vs. 81.0% in conventional ESE; odds ratio: 1.43 [95% CI: 0.78-2.62], p = 0.25). Interreader agreement analysis (Fleiss's Kappa) for detecting RWMAs among the four cardiologists were 0.66 (95%CI: 0.55-0.77) for slow-motion ESE and 0.53 (95%CI: 0.42-0.65) for conventional ESE. Additionally, subjective evaluations of image readability using a four-point scale showed a significant improvement for slow-motion echocardiography (2.11 ± 0.73 vs. 1.70 ± 0.78, p < 0.001).In conclusion, we successfully developed slow-motion echocardiography using in-between echocardiographic image interpolation. Although the accuracy for detecting RWMAs did not show a significant improvement with this method, we observed enhanced image readability and interreader agreement. This AI-based approach holds promise in supporting physicians' evaluations.
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Affiliation(s)
- Yuki Sahashi
- Department of Cardiology, Gifu University Graduate School of Medicine, 1-1 Yanagido, Gifu City, Gifu, Japan.
| | - Ryo Takeshita
- Department of Electrical, Electronic and Computer Engineering, Faculty of Engineering, Gifu University Graduate School of Medicine, Gifu, Japan
| | - Takatomo Watanabe
- Department of Cardiology, Gifu University Graduate School of Medicine, 1-1 Yanagido, Gifu City, Gifu, Japan
- Division of Clinical Laboratory, Gifu University Hospital, Gifu, Japan
| | - Takuma Ishihara
- Innovative and Clinical Research Promotion Center, Gifu University Hospital, Gifu, Japan
| | - Ayako Sekine
- Division of Clinical Laboratory, Gifu University Hospital, Gifu, Japan
| | - Daichi Watanabe
- Division of Clinical Laboratory, Gifu University Hospital, Gifu, Japan
- Department of Pharmacy, Gifu University Hospital, Gifu, Japan
| | - Takeshi Ishihara
- Department of Cardiology, Gifu University Graduate School of Medicine, 1-1 Yanagido, Gifu City, Gifu, Japan
| | - Hajime Ichiryu
- Department of Cardiology, Gifu University Graduate School of Medicine, 1-1 Yanagido, Gifu City, Gifu, Japan
| | - Susumu Endo
- Department of Cardiology, Gifu University Graduate School of Medicine, 1-1 Yanagido, Gifu City, Gifu, Japan
| | - Daisuke Fukuoka
- Department of Electrical, Electronic and Computer Engineering, Faculty of Engineering, Gifu University Graduate School of Medicine, Gifu, Japan
- Faculty of Education, Gifu University, Gifu, Japan
| | - Takeshi Hara
- Department of Electrical, Electronic and Computer Engineering, Faculty of Engineering, Gifu University Graduate School of Medicine, Gifu, Japan
- Center for Research, Education, and Development for Healthcare Life Design (C-REX), Tokai National Higher Education and Research System, Gifu, Japan
| | - Hiroyuki Okura
- Department of Cardiology, Gifu University Graduate School of Medicine, 1-1 Yanagido, Gifu City, Gifu, Japan
- Division of Clinical Laboratory, Gifu University Hospital, Gifu, Japan
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3
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Yamazaki N, Kiyohara Y, Sato M, Endo S, Song B, Tanaka Y, Kambe A, Sato Y, Uhara H. 407P A post-marketing surveillance of the real-world safety and effectiveness of avelumab in patients with curatively unresectable Merkel cell carcinoma in Japan. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.10.438] [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: 12/05/2022] Open
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4
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Yamauchi Y, Kawamura M, Okami J, Shintani Y, Ito H, Ohtsuka T, Toyooka S, Mori T, Watanabe SI, Asamura H, Chida M, Endo S, Kadokura M, Nakanishi R, Miyaoka E, Yoshino I, Date H. 944P Hazard function analysis of recurrence in patients with curatively resected lung cancer: Results from the Japanese Lung Cancer Registry in 2010. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.07.1069] [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: 11/01/2022] Open
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5
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Kanamori H, Yoshida A, Naruse G, Endo S, Minatoguchi S, Watanabe T, Kawaguchi T, Tanaka T, Yamada Y, Takasugi N, Ishihara T, Mikami A, Miyazaki N, Nishigaki K, Minatoguchi S, Miyazaki T, Okura H. Impact of Autophagy on Prognosis of Patients With Dilated Cardiomyopathy. J Am Coll Cardiol 2022; 79:789-801. [PMID: 35210034 DOI: 10.1016/j.jacc.2021.11.059] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/23/2021] [Revised: 11/01/2021] [Accepted: 11/29/2021] [Indexed: 01/11/2023]
Abstract
BACKGROUND Autophagy is a cellular process that degrades a cell's own cytoplasmic components for energy provision and to maintain a proper intracellular environment. Left ventricular reverse remodeling (LVRR) promises a better prognosis for patients with dilated cardiomyopathy (DCM). OBJECTIVES The authors tested the hypothesis that autophagy is involved in LVRR and has prognostic value in the human failing heart. METHODS Using left ventricular endomyocardial biopsy specimens from 42 patients with DCM (21 LVRR-positive and 21 LVRR-negative) and 7 patients with normal cardiac function (control), the authors performed immunohistochemistry and immunofluorescent labeling of LC3 and cathepsin D and electron microscopic observation in addition to general morphometry under light microscopy. RESULTS The clinical characteristics of LVRR-positive patients were similar to those of the LVRR-negative patients, except for pulmonary artery pressure and left atrial dimension. Morphometry under light microscopy did not differ among specimens from DCM patients, regardless of their LVRR status. Electron microscopy revealed that autophagic vacuoles (autophagosomes and autolysosomes) and lysosomes were abundant within cardiomyocytes from DCM patients. Moreover, cardiomyocytes from LVRR-positive patients contained significantly more autophagic vacuoles with higher autolysosome ratios and cathepsin D expression levels than cardiomyocytes from LVRR-negative patients. Logistic regression analysis adjusted for age showed that increases in autophagic vacuole number and cathepsin D expression were predictive of LVRR. DCM patients who achieved LVRR experienced fewer cardiovascular events during the follow-up period. CONCLUSIONS The authors show that autophagy is a useful marker predictive of LVRR in DCM patients. This provides novel pathologic insight into a strategy for treating the failing DCM heart.
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Affiliation(s)
- Hiromitsu Kanamori
- Department of Cardiology, Gifu University Graduate School of Medicine, Gifu, Japan.
| | - Akihiro Yoshida
- Department of Cardiology, Gifu University Graduate School of Medicine, Gifu, Japan
| | - Genki Naruse
- Department of Cardiology, Gifu University Graduate School of Medicine, Gifu, Japan
| | - Susumu Endo
- Department of Cardiology, Gifu University Graduate School of Medicine, Gifu, Japan
| | - Shingo Minatoguchi
- Department of Cardiology, Gifu University Graduate School of Medicine, Gifu, Japan
| | - Takatomo Watanabe
- Department of Cardiology, Gifu University Graduate School of Medicine, Gifu, Japan
| | - Tomonori Kawaguchi
- Department of Cardiology, Gifu University Graduate School of Medicine, Gifu, Japan
| | - Toshiki Tanaka
- Department of Cardiology, Gifu University Graduate School of Medicine, Gifu, Japan
| | - Yoshihisa Yamada
- Department of Cardiology, Gifu University Graduate School of Medicine, Gifu, Japan
| | - Nobuhiro Takasugi
- Department of Cardiology, Gifu University Graduate School of Medicine, Gifu, Japan
| | - Takuma Ishihara
- Innovative and Clinical Research Promotion Center, Gifu University Hospital, Gifu, Japan
| | - Atsushi Mikami
- Department of Cardiology, Gifu University Graduate School of Medicine, Gifu, Japan
| | - Nagisa Miyazaki
- Department of Internal Medicine, Asahi University School of Dentistry, Mizuho, Japan
| | - Kazuhiko Nishigaki
- Department of Cardiology, Gifu University Graduate School of Medicine, Gifu, Japan
| | - Shinya Minatoguchi
- Department of Cardiology, Gifu University Graduate School of Medicine, Gifu, Japan
| | | | - Hiroyuki Okura
- Department of Cardiology, Gifu University Graduate School of Medicine, Gifu, Japan
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6
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Hara H, Yamamoto S, Kii T, Kawabata R, Kawada J, Takeno A, Matsuyama J, Ueda S, Kawakami H, Okita Y, Endo S, Kimura Y, Yanagihara K, Okuno T, Kurokawa Y, Shimokawa T, Satoh T. 1387P Randomized phase II study comparing docetaxel vs paclitaxel in patients with esophageal squamous cell carcinoma who are refractory to fluoropyrimidine and platinum-based chemotherapy: OGSG1201. Ann Oncol 2021. [DOI: 10.1016/j.annonc.2021.08.1496] [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] Open
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7
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Endo S, Takasugi N, Kanamori H, Okura H. Atrial trigeminy induced at a specific pacing cycle length in a patient with residual pulmonary vein conduction gap. J Electrocardiol 2021; 67:84-88. [PMID: 34102557 DOI: 10.1016/j.jelectrocard.2021.05.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2020] [Revised: 01/18/2021] [Accepted: 05/21/2021] [Indexed: 10/21/2022]
Abstract
We report a case of atrial trigeminy induced only at a specific pacing cycle length in a patient with residual pulmonary vein conduction gap.
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Affiliation(s)
- Susumu Endo
- Division of Cardiovascular Medicine, Gifu University Hospital, Gifu, Japan
| | - Nobuhiro Takasugi
- Division of Cardiovascular Medicine, Gifu University Hospital, Gifu, Japan.
| | - Hiromitsu Kanamori
- Division of Cardiovascular Medicine, Gifu University Hospital, Gifu, Japan
| | - Hiroyuki Okura
- Division of Cardiovascular Medicine, Gifu University Hospital, Gifu, Japan
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8
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Osaki A, Sato Y, Endo S, Ito K, Kagami K, Yumita Y, Ishinoda Y, Toya T, Ido Y, Namba T, Adachi T. Adipose extracellular signal-regulated kinase 2 protected from endothelial dysfunction and the oxidative stress of perivascular adipose tissue in obese mice. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.3822] [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
Introduction
Extracellular signal-regulated kinase (ERK) modulates differentiation and maturation of adipocyte and the hypertrophy and differentiation of adipocytes affected the vascular diseases in obese. Changes in characters of adipocytes could develope the oxidative stress and inflammations. Moreover, changes in perivascular adipose tissue (PVAT) could modulate vascular tonus in obesity. However, the role of adipose ERK2 in endothelial function and characters of PVAT in obese in vivo had not been clarified, yet.
Purpose
This study aims to elucidate the role of the adipose ERK2 in endothelial-dependent relaxation (EDR) in mice model of obesity. The role of PVAT in EDR was also assessed.
Methods and results
We created adipose-specific ERK2 knock out mice (AE2KO) by crossing fatty acid binding protein 4 Cre and ERK2 flox mice and fed them with normal diet (ND) or high fat/ high sucrose diet (HFHSD) for 24 weeks. AE2KO fed with HFHSD gained more weight and revealed the heterogeneity in sizes of adipocyte in subcutaneous fat (SF). Furthermore, the mRNA levels of lipoprotein lipase, hormone-sensitive lipase, and peroxisome proliferator-activated receptor γ, which was the master genes of adipocyte differentiation, were markedly down-regulated in SF. PVAT in AE2KO with HFHSD was markedly enlarged and the mRNA expression of inflammatory adipocytokines, such as IL-1β and leptin were up-regulated. Next, we assessed EDR by acetylcholine (ACh) -induced relaxation in aortic rings with or without PVAT. EDR without PVAT was modestly decreased in AE2KO with HFHSD compared with wild type mice (WT) with HFHSD. Aortic rings with PVAT increased EDR in WT with ND. PVAT modestly decreased EDR in WT with HFHSD and mostly eliminated EDR in AE2KO with HFHSD. To assess the contraction factors released from PVAT, the solutions incubated with PVAT (SIP) were transferred to the normal aortic rings. SIP from WT with HFHSD mildly increased vascular tone and SIP from AE2KO with HFHSD further increased it. Tempol, which was superoxide scavenger, restored endothelial dysfunction with PVAT and suppressed the contraction with SIP from AE2KO with HFHSD. Fluorescence intensity of dihydroethidium stain of aorta and PVAT, which indicated that aortic and adipose superoxide production were elevated in AE2KO with HFHSD, which were mostly eliminated with tempol.
Conclusions
Adipose ERK2 selectively modulated differentiation in SF, suppressed the aortic oxidative stress and protected from endothelial dysfunction in obese. Moreover, adipose ERK2 suppressed the hypertrophy, inflammation, and oxidative stress of PVAT in obese. The oxidative stress with the inflammation in PVAT released vasoconstriction factors, which contributed to endothelial dysfunction in obese mice.
Figure 1
Funding Acknowledgement
Type of funding source: None
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Affiliation(s)
- A Osaki
- National Defense Medical College, Saitama, Japan
| | - Y Sato
- National Defense Medical College, Saitama, Japan
| | - S Endo
- Tokyo Metropolitan Geriatric Hospital, Tokyo, Japan
| | - K Ito
- National Defense Medical College, Saitama, Japan
| | - K Kagami
- National Defense Medical College, Saitama, Japan
| | - Y Yumita
- National Defense Medical College, Saitama, Japan
| | - Y Ishinoda
- National Defense Medical College, Saitama, Japan
| | - T Toya
- National Defense Medical College, Saitama, Japan
| | - Y Ido
- National Defense Medical College, Saitama, Japan
| | - T Namba
- National Defense Medical College, Saitama, Japan
| | - T Adachi
- National Defense Medical College, Saitama, Japan
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9
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Yamamoto K, Yamaguchi M, Endo S. Functional characterization of an aldose reductase (bmALD1) obtained from the silkworm Bombyx mori. Insect Mol Biol 2020; 29:490-497. [PMID: 32681683 DOI: 10.1111/imb.12658] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/26/2020] [Revised: 06/22/2020] [Accepted: 07/08/2020] [Indexed: 06/11/2023]
Abstract
We describe a new member of the aldo-keto reductase (AKR) superfamily in the silkworm Bombyx mori. On the basis of its amino acid sequence and phylogenetic tree, this AKR belongs to the AKR1B family and has been designated as bmALD1. In the current study, recombinant bmALD1 was overexpressed, purified to homogeneity and kinetically characterized. We discovered that bmALD1 uses NADPH as a coenzyme to reduce carbonyl compounds such as DL-glyceraldehyde, glucose and 2-nonenal. No NADH-dependent activity was detected. To the best of our knowledge, bmALD1 is only the third AKR characterized in silkworm which, given its substrate specificity, could play a major role in glucose metabolism and antioxidant reactions. Our data provide an increased understanding of insect AKR function.
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Affiliation(s)
- K Yamamoto
- Faculty of Agriculture, Kyushu University Graduate School, Fukuoka, Japan
| | - M Yamaguchi
- Faculty of Agriculture, Kyushu University Graduate School, Fukuoka, Japan
| | - S Endo
- Laboratory of Biochemistry, Gifu Pharmaceutical University, Gifu, Japan
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Hu N, Tanaka H, Takata T, Endo S, Masunaga S, Suzuki M, Sakurai Y. Evaluation of PHITS for microdosimetry in BNCT to support radiobiological research. Appl Radiat Isot 2020; 161:109148. [DOI: 10.1016/j.apradiso.2020.109148] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2018] [Revised: 11/14/2019] [Accepted: 03/24/2020] [Indexed: 12/01/2022]
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Sahashi Y, Serge Yanagimoto T, Endo S, Ushikoshi H, Okura H. Sudden Cardiac Arrest as the First Manifestation in a Patient with Catastrophic Antiphospholipid Syndrome. Intern Med 2020; 59:1457-1460. [PMID: 32161219 PMCID: PMC7332628 DOI: 10.2169/internalmedicine.4123-19] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/04/2019] [Accepted: 01/20/2020] [Indexed: 11/06/2022] Open
Abstract
We herein report a 26-year-old woman with sudden cardiac arrest who had no remarkable medical history. While resuscitation was successfully performed with adrenalin administration and extracorporeal membrane oxygenation, the cause of cardiac arrest could not be determined for over two weeks. Given the presence of autoimmune disease along with the findings of refractory renal insufficiency and thrombocytopenia, a kidney biopsy and blood examinations, including lupus anticoagulant testing, were performed, which proved the presence of antiphospholipid syndrome. The patient was successfully treated with steroid pulse therapy. This drastic case scenario highlighted the fact that autoimmune disease can be the cause of sudden cardiac arrest.
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Affiliation(s)
- Yuki Sahashi
- Department of Cardiology, Gifu University, Graduate School of Medicine, Japan
| | | | - Susumu Endo
- Department of Cardiology, Gifu University, Graduate School of Medicine, Japan
| | - Hiroaki Ushikoshi
- Department of Cardiology, Gifu University, Graduate School of Medicine, Japan
| | - Hiroyuki Okura
- Department of Cardiology, Gifu University, Graduate School of Medicine, Japan
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Sato A, Satoh Y, Endo S, Kimura T, Osaki A, Horii S, Ito K, Kagami K, Namba T, Adachi T. P737Endothelial ERK2/thromboxane receptor pathway induces endothelial dysfunction, insulin resistance and steatohepatosis through superoxide with high fat high sucrose diet. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz747.0341] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Introduction
Metabolic syndrome (MetS) is well known as the risk of cardiovascular diseases associated with endothelial dysfunction and induces steatohepatosis. Insulin resistance is a major character of MetS, which affects intracellular signaling pathways and endothelial function. Extracellular signal-regulated kinase (ERK) is a major component of insulin signal and many of vasoactive peptides, which were released in MetS, can activate it in endothelium. However, the role of endothelial ERK in nitric oxide (NO) bioactivity in MetS in in vivo has been unknown.
Purpose
The aim of this study is to clarify the role of endothelial ERK2 on NO bioactivity in mice model of MetS.
Methods and results
We created endothelial specific ERK2 knock out mice (EE2KO) crossing Tie2-Cre mice and ERK2 flox mice and fed them with normal or high-fat/high-sucrose diet (HFHSD) for 24 weeks. Serum glucose and insulin levels and HOMA-IR were lowered in EE2KO with HFHSD without changing body weight. In wild type mice (WT) with HFHSD, nonalcoholic fatty liver disease (NAFLD) activity score, fibrosis score and serum ALT level were increased, all of which were blunted in EE2KO. EE2KO with HFHSD lowered systolic blood pressure (WT: 123.7±5.83 mmHg, EE2KO: 101.4±3.66 mmHg, P<0.01, N=8) without changing heart rate, which was increased to the same levels with L-NAME, an endothelial NO synthase inhibitor, in both groups. Serum NO levels measured with serum nitrite/nitrate concentrations were increased in EE2KO with HFHSD (WT: 23.10±3.74 μmol/l, EE2KO: 41.71±6.73 μmol/l, P<0.05, N=12). Endothelial function was assessed with the isometric tension measurement of aortic rings with acetylcholine (ACh). ACh-induced relaxation was improved in EE2KO with HFHSD. Superoxide production of aorta from EE2KO was lowered than WT with HFHSD in dihydroethidium (DHE) staining. S18886, an antagonist of the thromboxane A2-prostanoid (TP) receptor, decreased superoxide production of aorta in DHE staining resulting in improving endothelial function in the isometric tension measurement of aortic rings. Oral administrations of S18886 decreased systolic blood pressure, serum fasting glucose and insulin levels, and surprisingly improved steatohepatosis by decreasing NAFLD activity score and fibrosis score.
Relaxation of aortic rings with ACh
Conclusions
Endothelial ERK2/TP receptor pathway increases superoxide production and decreased NO bioactivity, resulting in deteriorating endothelial function, insulin resistance and steatohepatosis, which were improved by antagonist of the TP receptor in mice model of MetS. The present study indicates that ERK2/TP pathway could be a therapeutic target for complications of MetS.
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Affiliation(s)
- A Sato
- National Defense Medical College, Cardiovascular Medicine, Tokorozawa, Japan
| | - Y Satoh
- National Defense Medical College, Pharmacology, Tokorozawa, Japan
| | - S Endo
- Tokyo Metropolitan Geriatric Hospital, Aging Neuroscience Research Team, Tokyo, Japan
| | - T Kimura
- National Defense Medical College, Cardiovascular Medicine, Tokorozawa, Japan
| | - A Osaki
- National Defense Medical College, Cardiovascular Medicine, Tokorozawa, Japan
| | - S Horii
- National Defense Medical College, Cardiovascular Medicine, Tokorozawa, Japan
| | - K Ito
- National Defense Medical College, Cardiovascular Medicine, Tokorozawa, Japan
| | - K Kagami
- National Defense Medical College, Cardiovascular Medicine, Tokorozawa, Japan
| | - T Namba
- National Defense Medical College, Cardiovascular Medicine, Tokorozawa, Japan
| | - T Adachi
- National Defense Medical College, Cardiovascular Medicine, Tokorozawa, Japan
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Hasegawa S, Yamamoto H, Hashimoto M, Fukui E, Suzuki K, Sato Y, Endo S, Chida M. IBS06.03 Japanese Data. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.212] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Ihara Y, Hirano A, Endo S, Kobayashi H, Torisu T. Gastrointestinal: A case of zonisamide-induced esophageal and small intestinal injury. J Gastroenterol Hepatol 2019; 34:1671. [PMID: 31119767 DOI: 10.1111/jgh.14685] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [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: 12/27/2018] [Accepted: 04/17/2019] [Indexed: 12/09/2022]
Affiliation(s)
- Y Ihara
- Department of Medicine and Clinical Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - A Hirano
- Department of Medicine and Clinical Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - S Endo
- Department of Gastroenterology, Fukuoka Sanno Hospital, Fukuoka, Japan
| | - H Kobayashi
- Department of Gastroenterology, Fukuoka Sanno Hospital, Fukuoka, Japan
| | - T Torisu
- Department of Medicine and Clinical Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
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Endo S, Imano M, Furukawa H, Yokokawa M, Nishimura Y, Shinkai M, Yasuda T, Nakagawa T, Adachi S, Lee S, Goto M, Kii T, Uchiyama K, Kawakami H, Shimokawa T, Sakai D, Kurokawa Y, Satoh T. Phase II study of preoperative radiotherapy combined with S-1 plus cisplatin in clinically resectable type 4 or large type 3 gastric cancer: OGSG1205. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz247.110] [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: 11/13/2022] Open
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16
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Sahashi Y, Takasugi N, Yanagimoto TS, Endo S, Nakashima T, Okura H. Arteriovenous femoral fistula after insertion of leadless pacemaker-A case with an anomaly of the deep femoral artery. J Arrhythm 2019; 35:770-772. [PMID: 31624520 PMCID: PMC6787157 DOI: 10.1002/joa3.12224] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2019] [Revised: 07/16/2019] [Accepted: 07/28/2019] [Indexed: 11/21/2022] Open
Abstract
With the increasing number of implanted leadless pacemakers, complications related to the implantation procedure are being reported. We herein report a case of an 87-year-old male with an arteriovenous fistula after leadless pacemaker implantation due to an anomaly of the right deep femoral artery (DFA). In this present case, a right DFA arising from the antero-medial side of the main femoral artery was attributed to this complication.
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Affiliation(s)
- Yuki Sahashi
- Department of Cardiology, Graduate School of MedicineGifu UniversityGifuJapan
| | - Nobuhiro Takasugi
- Department of Cardiology, Graduate School of MedicineGifu UniversityGifuJapan
| | | | - Susumu Endo
- Department of Cardiology, Graduate School of MedicineGifu UniversityGifuJapan
| | - Takashi Nakashima
- Department of Cardiology, Graduate School of MedicineGifu UniversityGifuJapan
| | - Hiroyuki Okura
- Department of Cardiology, Graduate School of MedicineGifu UniversityGifuJapan
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Hidaka T, Kakamu T, Endo S, Kasuga H, Masuishi Y, Kumagai T, Sato S, Sasaki T, Fukushima T. Factors associated with possession of accurate knowledge regarding occupational health management among operations leaders of radiation decontamination workers in Fukushima, Japan: a cross-sectional study. BMJ Open 2019; 9:e025729. [PMID: 31061030 PMCID: PMC6502049 DOI: 10.1136/bmjopen-2018-025729] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
OBJECTIVES An operations leader (OL) takes an important role in occupational health management for radiation decontamination workers in Japan, and candidates for the position must participate in a training session to acquire the necessary knowledge as required by law. However, it has not been clarified whether the candidates for the OL position actually possess accurate knowledge regarding occupational health management for such work after the training session. We, therefore, aimed at examining the current occupational health management knowledge among the candidates and investigating factors related to the knowledge, with hypothesis that possession of accurate knowledge is associated with prior experience of having worked in radiation decontamination. DESIGN A cross-sectional study. SETTING The training sessions held by Fukushima Prefecture Labor Standard Associations in Fukushima, Japan, in 2017. PARTICIPANTS Eighty male candidates participated in the training sessions. OUTCOME The number/proportion of correct answers to the questions regarding occupational health management, such as those on working environment management, control of operations and health management. RESULTS The proportion of those who possessed accurate knowledge regarding working environment management, control of operations and health management was 68.8%, 55.0% and 51.2%, respectively. Experience of radiation decontamination work was associated with the possession of inaccurate knowledge regarding working environment management (OR 0.140 (95% CI 0.042 to 0.464)), and the uncertainty of future radiation decontamination work schedules in difficult-to-return zones was associated with the possession of accurate knowledge regarding health management (OR 4.344 (95% CI 1.509 to 12.50)). CONCLUSIONS Previous experience in radiation decontamination work may hinder the ability to acquire accurate information regarding working environment management among candidates for an OL position. To promote adequate occupational health management for radiation decontamination workers, it is required to establish an effective instructional method for the OL candidate training sessions with consideration of previous relevant experience.
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Affiliation(s)
- T Hidaka
- Department of Hygiene and Preventive Medicine, School of Medicine, Fukushima Medical University, Fukushima, Japan
| | - T Kakamu
- Department of Hygiene and Preventive Medicine, School of Medicine, Fukushima Medical University, Fukushima, Japan
| | - S Endo
- Department of Hygiene and Preventive Medicine, School of Medicine, Fukushima Medical University, Fukushima, Japan
| | - H Kasuga
- Department of Hygiene and Preventive Medicine, School of Medicine, Fukushima Medical University, Fukushima, Japan
| | - Y Masuishi
- Department of Hygiene and Preventive Medicine, School of Medicine, Fukushima Medical University, Fukushima, Japan
| | - T Kumagai
- Department of Hygiene and Preventive Medicine, School of Medicine, Fukushima Medical University, Fukushima, Japan
| | - S Sato
- Department of Hygiene and Preventive Medicine, School of Medicine, Fukushima Medical University, Fukushima, Japan
| | - T Sasaki
- Department of Hygiene and Preventive Medicine, School of Medicine, Fukushima Medical University, Fukushima, Japan
| | - T Fukushima
- Department of Hygiene and Preventive Medicine, School of Medicine, Fukushima Medical University, Fukushima, Japan
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18
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Kawabata R, Terazawa T, Matsuyama J, Endo S, Shiraishi O, Fujita S, Akamaru Y, Taniguchi H, Tatsumi M, Gotoh M, Lee SW, Kurokawa Y, Shimokawa T, Sakai D, Kato T, Fujitani K, Satoh T. A multicenter phase II trial of perioperative capecitabine plus oxaliplatin for clinical stage III gastric cancer (OGSG1601). Ann Oncol 2018. [DOI: 10.1093/annonc/mdy282.055] [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: 11/13/2022] Open
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19
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Shimada H, Endo S, Sasahara Y, Shinmura T, Ozawa T, Majima H, Hara T, Imase R, Yamauchi S, Sakakibara Y, Kobayashi A, Yamazaki K, Jin Y, Yamanaka K, Matsubara O. P2.03-032 Efficacy and Safety of Osimertinib as Third-Line or Later Therapy for T790M-Positive Advanced Non-Small Cell Lung Cancer. J Thorac Oncol 2017. [DOI: 10.1016/j.jtho.2017.09.1283] [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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20
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Imase R, Endo S, Sasahara Y, Shinmura T, Ozawa T, Majima H, Hara T, Shimada H, Yamauchi S, Sakakibara Y, Kobayashi A, Yamazaki K, Jin Y, Yamanaka K, Matsubara O. P1.03-010 Efficacy and Safety of Anaplastic Lymphoma Kinase (ALK) Tyrosine Kinase Inhibitors in ALK-Positive Non-Small Cell Lung Cancer. J Thorac Oncol 2017. [DOI: 10.1016/j.jtho.2017.09.814] [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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21
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Nakano T, Kanai Y, Amano Y, Yoshimoto T, Matsubara D, Shibano T, Endo S, Niki T. P3.02-089 Establishment of Highly Metastatic Lung Cancer Cell Sublines in Long-term Three-dimensional Low Attachment Cultures. J Thorac Oncol 2017. [DOI: 10.1016/j.jtho.2017.09.1618] [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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Shibano T, Endo S. P-267LONG-TERM PROGNOSIS OF SURGICALLY-TREATED SMALL CELL LUNG CARCINOMA. Interact Cardiovasc Thorac Surg 2017. [DOI: 10.1093/icvts/ivx280.267] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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23
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Ueno N, Nishimura N, Ueno S, Endo S, Tatetsu H, Hirata S, Hata H, Matsuoka M, Mitsuya H, Okuno Y. PU.1 acts as tumor suppressor for myeloma cells through direct transcriptional repression of IRF4. Oncogene 2017; 36:4481-4497. [PMID: 28368411 DOI: 10.1038/onc.2017.79] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2015] [Revised: 02/09/2017] [Accepted: 02/26/2017] [Indexed: 12/13/2022]
Abstract
We previously reported that PU.1 is downregulated in the majority of myeloma cell lines and primary myeloma cells of certain myeloma patients, and conditional expression of PU.1 in such myeloma cell lines induced cell cycle arrest and apoptosis. We found downregulation of IRF4 protein in the U266 myeloma cell line following induction of PU.1. Previous studies reported that knockdown of IRF4 in myeloma cell lines induces apoptosis, prompting us to further investigate the role of IRF4 downregulation in PU.1-induced cell cycle arrest and apoptosis in myeloma cells. PU.1 induced downregulation of IRF4 at the protein level, cell cycle arrest and apoptosis in six myeloma cell lines. Chromatin immunoprecipitation (ChIP) revealed that PU.1 directly binds to the IRF4 promoter, whereas a reporter assay showed that PU.1 may suppress IRF4 promoter activity. Stable expression of IRF4 in myeloma cells expressing PU.1 partially rescued the cells from apoptosis induced by PU.1. As it was reported that IRF4 directly binds to the IRF7 promoter and downregulates its expression in activated B cell-like subtype of diffuse large B cell lymphoma cells, we performed ChIP assays and found that IRF4 directly binds the IRF7 promoter in myeloma cells. It is known that IRF7 positively upregulates interferon-β (IFNβ) and induces apoptosis in many cell types. Binding of IRF4 to the IRF7 promoter decreased following PU.1 induction, accompanied by downregulation of IRF4 protein expression. Knockdown of IRF7 protected PU.1-expressing myeloma cells from apoptosis. Furthermore, IFNβ, which is a downstream target of IRF7, was upregulated in myeloma cells along with IRF7 after PU.1 induction. Finally, we evaluated the mRNA expression levels of PU.1, IRF4 and IRF7 in primary myeloma cells from patients and found that PU.1 and IRF7 were strongly downregulated in contrast to the high expression levels of IRF4. These data strongly suggest that PU.1-induced apoptosis in myeloma cells is associated with IRF4 downregulation and subsequent IRF7 upregulation.
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Affiliation(s)
- N Ueno
- Departments of Hematology, Rheumatology and Infectious Diseases, Kumamoto University Graduate School of Medicine, Chuo-ku, Kumamoto, Japan
| | - N Nishimura
- Departments of Hematology, Rheumatology and Infectious Diseases, Kumamoto University Graduate School of Medicine, Chuo-ku, Kumamoto, Japan
| | - S Ueno
- Departments of Hematology, Rheumatology and Infectious Diseases, Kumamoto University Graduate School of Medicine, Chuo-ku, Kumamoto, Japan
| | - S Endo
- Departments of Hematology, Rheumatology and Infectious Diseases, Kumamoto University Graduate School of Medicine, Chuo-ku, Kumamoto, Japan
| | - H Tatetsu
- Departments of Hematology, Rheumatology and Infectious Diseases, Kumamoto University Graduate School of Medicine, Chuo-ku, Kumamoto, Japan
| | - S Hirata
- Departments of Hematology, Rheumatology and Infectious Diseases, Kumamoto University Graduate School of Medicine, Chuo-ku, Kumamoto, Japan
| | - H Hata
- Departments of Hematology, Rheumatology and Infectious Diseases, Kumamoto University Graduate School of Medicine, Chuo-ku, Kumamoto, Japan
| | - M Matsuoka
- Departments of Hematology, Rheumatology and Infectious Diseases, Kumamoto University Graduate School of Medicine, Chuo-ku, Kumamoto, Japan
| | - H Mitsuya
- Departments of Hematology, Rheumatology and Infectious Diseases, Kumamoto University Graduate School of Medicine, Chuo-ku, Kumamoto, Japan
| | - Y Okuno
- Departments of Hematology, Rheumatology and Infectious Diseases, Kumamoto University Graduate School of Medicine, Chuo-ku, Kumamoto, Japan
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Abstract
The residents of Suetsugi in Fukushima Prefecture measured ambient dose rates and radiocaesium concentrations in the soil after the accident at Fukushima Daiichi nuclear power plant in an attempt to maintain living conditions in the region. The measurements were colour plotted into maps to visualise the contamination. Through the receipt of external support, a number of radioactivity-related initiatives were implemented for the residents. Studies were also undertaken regarding the impact of radiocaesium contamination on rice farming in Suetsugi following the Great East Japan Earthquake and the accident at Fukushima Daiichi nuclear power plant.
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Affiliation(s)
- S Endo
- Suetsugi, Hisanohama-machi, Iwaki, Fukushima Prefecture, Japan
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Kanamori H, Hatakeyama T, Uchiyama B, Weber DJ, Takeuchi M, Endo S, Hirakata Y, Kaku M. Clinical and molecular epidemiological features of tuberculosis after the 2011 Japan earthquake and tsunami. Int J Tuberc Lung Dis 2017; 20:505-14. [PMID: 26970161 DOI: 10.5588/ijtld.15.0607] [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: 11/10/2022] Open
Abstract
OBJECTIVE To investigate clinical characteristics and prognosis in tuberculosis (TB) patients and the transmission dynamics of TB after the 2011 Japan earthquake and tsunami. METHOD This was a retrospective observational cohort study. Data were analyzed among 93 pulmonary TB patients (tsunami-affected areas 25, non-tsunami areas 68) hospitalized during March 2011-March 2012 with 1-year follow-up since treatment commencement. Variable number of tandem repeats (VNTR) typing was conducted for 38 TB strains (tsunami-affected areas 21, non-tsunami areas 17). RESULTS Patients from tsunami-affected areas were significantly more likely to be refugees (OR 12.8, 95%CI 2.45-67.20), receive oxygenation (OR 5.0, 95%CI 1.68-14.85), and have a unique VNTR (OR 4.6, 95%CI 1.14-18.41). Patients who died within 1 year were significantly more likely to be older (OR 9.8, 95%CI 1.85-180.26), partially dependent or dependent (OR 11.9, 95%CI 4.28-37.62), and to require oxygenation (OR 4.3, 95%CI 1.47-12.89), and had lower serum albumin levels (OR 11.1, 95%CI 2.97-72.32). CONCLUSION Risk factors for prognosis of TB after the earthquake were associated with advanced age, low serum albumin level, functional status at admission, and oxygen requirement. The VNTR results suggest that most of the cases with pulmonary TB experienced reactivation of latent tuberculous infection, likely due to the impact of the earthquake and tsunami.
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Affiliation(s)
- H Kanamori
- Miyagi Cardiovascular and Respiratory Center, Kurihara, Miyagi, Japan; Department of Infection Control and Laboratory Diagnostics, Internal Medicine, Tohoku University Graduate School of Medicine, Sendai, Miyagi, Japan; Division of Infectious Diseases, University of North Carolina School of Medicine, Chapel Hill, North Carolina, USA
| | - T Hatakeyama
- Department of Microbiology, Miyagi Prefectural Institute of Public Health and Environment, Sendai, Miyagi, Japan
| | - B Uchiyama
- Miyagi Cardiovascular and Respiratory Center, Kurihara, Miyagi, Japan
| | - D J Weber
- Division of Infectious Diseases, University of North Carolina School of Medicine, Chapel Hill, North Carolina, USA
| | - M Takeuchi
- Miyagi Cardiovascular and Respiratory Center, Kurihara, Miyagi, Japan
| | - S Endo
- Department of Infection Control and Laboratory Diagnostics, Internal Medicine, Tohoku University Graduate School of Medicine, Sendai, Miyagi, Japan
| | - Y Hirakata
- Miyagi Cardiovascular and Respiratory Center, Kurihara, Miyagi, Japan
| | - M Kaku
- Department of Infection Control and Laboratory Diagnostics, Internal Medicine, Tohoku University Graduate School of Medicine, Sendai, Miyagi, Japan
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Sato S, Endo S, Kurokawa Y, Yamaguchi M, Nagai A, Ito T, Ogata T. Synthesis and fluorescence properties of six fluorescein-nitroxide radical hybrid-compounds. Spectrochim Acta A Mol Biomol Spectrosc 2016; 169:66-71. [PMID: 27337053 DOI: 10.1016/j.saa.2016.06.021] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/08/2016] [Revised: 05/21/2016] [Accepted: 06/13/2016] [Indexed: 06/06/2023]
Abstract
Six fluorescein-nitroxide radical hybrid-compounds (2ab, 3ab, 4, and 5) were synthesized by the condensation of 5- or 6-carboxy-fluorescein and 4-amino-TEMPO (2ab), 5- or 6-aminofluorescein and 4-carboxy-TEMPO (3ab), and fluorescein and 4-carboxy-TEMPO (4), or by reaction of the 3-hydroxyl group of fluorescein with DPROXYL-3-ylmethyl methanesulfonate (5). Fluorescence intensities (around 520nm) after reduction of the radical increased to 1.43-, 1.38-, and 1.61-folds for 2a, 2b and 3b respectively; 3a alone exhibited a decrease in intensity on reduction. Since 4 was readily solvolyzed in PBS or even methanol to afford fluorescein and 4-carboxy-TEMPO, its fluorescence change could not be measured. Hybrid compound 5 containing an ether-linkage between the fluorescein phenol and 3-hydroxymethyl-DPROXYL hydroxyl centers, was stable and on reduction, showed a maximum increase (3.21-fold) in relative fluorescence intensity in PBS (pH5.0), despite its remarkably low absolute fluorescence intensity.
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Affiliation(s)
- Shingo Sato
- Graduate School of Science and Engineering, Yamagata University, Jonan 4-3-16, Yonezawa-shi, Yamagata 992-8510, Japan.
| | - Susumu Endo
- Graduate School of Science and Engineering, Yamagata University, Jonan 4-3-16, Yonezawa-shi, Yamagata 992-8510, Japan
| | - Yusuke Kurokawa
- Graduate School of Science and Engineering, Yamagata University, Jonan 4-3-16, Yonezawa-shi, Yamagata 992-8510, Japan
| | - Masaki Yamaguchi
- Graduate School of Science and Engineering, Yamagata University, Jonan 4-3-16, Yonezawa-shi, Yamagata 992-8510, Japan
| | - Akio Nagai
- Graduate School of Science and Engineering, Yamagata University, Jonan 4-3-16, Yonezawa-shi, Yamagata 992-8510, Japan
| | - Tomohiro Ito
- Graduate School of Science and Engineering, Yamagata University, Jonan 4-3-16, Yonezawa-shi, Yamagata 992-8510, Japan
| | - Tateaki Ogata
- Graduate School of Science and Engineering, Yamagata University, Jonan 4-3-16, Yonezawa-shi, Yamagata 992-8510, Japan
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Akai T, Kuwayama N, Kubo M, Endo S, Takaku A. Treatment of an Arteriovenous Shunt Draining into a Venous Angioma by Selective Embolisation. Interv Neuroradiol 2016; 3:329-32. [DOI: 10.1177/159101999700300409] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/1997] [Accepted: 10/13/1997] [Indexed: 11/15/2022] Open
Abstract
We treated a 62-year-old woman who suffered from intraventricular haemorrhage. Angiography revealed an arteriovenous shunt draining into a venous angioma. She was successfully treated by obliteration of the arteriovenous shunt with transarterial embolisation. Angiography performed after embolisation demonstrated that the persisting venous angioma served as the draning vein for normal middle cerebral artery perfusion. We believe that selective arterial occlusion with preservation of the venous component is the best treatment for this type of mixed vascular malformation.
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Affiliation(s)
- T. Akai
- Department of Neurosurgery, Toyama Medical and Pharmaceutical University; Toyama, Japan
| | - N. Kuwayama
- Department of Neurosurgery, Toyama Medical and Pharmaceutical University; Toyama, Japan
| | - M. Kubo
- Department of Neurosurgery, Toyama Medical and Pharmaceutical University; Toyama, Japan
| | - S. Endo
- Department of Neurosurgery, Toyama Medical and Pharmaceutical University; Toyama, Japan
| | - A. Takaku
- Department of Neurosurgery, Toyama Medical and Pharmaceutical University; Toyama, Japan
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Kuwayama N, Kubo M, Nisihjima M, Horie Y, Endo S, Takaku A. Treatment of Intracranial (Dural) Arteriovenous Fistulas in Unusual Locations. Interv Neuroradiol 2016; 5 Suppl 1:115-20. [DOI: 10.1177/15910199990050s121] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/1999] [Accepted: 09/30/1999] [Indexed: 11/17/2022] Open
Abstract
We evaluated retrospectively the treatment modalities and clinical outcome of 14 patients with intracranial dural arteriovenous fistula (AVF) involving cortical veins and dural sinuses except the cavernous and lateral sinuses. The location of arteriovenous shunt was the confluence of the sinuses and superior sagittal sinus (in 2 patients), superior petrosal sinus (1), marginal sinus (1), parasigmoid sinus (1), cortical vein at the anterior fossa (2), cortical vein of the parietal lobe (2), petrosal vein (2), and the cortical vein around the craniocervical junction (3). Of 12 patients who underwent endovascular and/or surgical treatment, five patients were treated only with microsurgery, six only with endovascular therapy, and one with combined surgical and endovascular procedure. Angioanatomical result was complete occlusion of the lesion in all the cases treated with surgery, and 80 to 100% occlusion in cases with endovascular treatment. Clinical outcome was GR in nine patients, MD in two, SD in one, VS in one, and D in one. The natural history of the lesion at each location and angioanatomical feature including the hemodynamic condition in each case should be precisely evaluated to select endovascular, surgical, or a combined procedure for the management of these unusual types of intracranial dural AVF.
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Tsujimura M, Fujita T, Endo S, Nagai S, Watanabe E. AB1030 Effects of Conducting Directly Observed Treatment, Short-Course (DOTS) Strategy and Conferences on Latent Tuberculosis Infection in Rheumatoid Arthritis Patients Undergoing Immunosuppressive Therapy. Ann Rheum Dis 2016. [DOI: 10.1136/annrheumdis-2016-eular.3924] [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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30
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Kosugi C, Koda K, Tanaka K, Miyazawa Y, Shuto K, Matsuo K, Mori M, Hirano A, Endo S, Hiroshima Y, Sazuka T, Yanagibashi H, Kikuchi Y. P-271 Feasibility of neoadjuvant chemotherapy with modified FOLFOX6 (combination chemotherapy of infusional 5-FU/l-Leucovorin and intermittent oxaliplatin) with bevacizumab in patients with locally advanced lower rectal cancer. Ann Oncol 2016. [DOI: 10.1093/annonc/mdw199.261] [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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32
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Kawabata R, Sakai D, Kawada J, Nishikawa K, Kawase T, Oka Y, Sugimoto N, Shimizu T, Nishijima J, Hasegawa H, Endo S, Isozaki Y, Kimura Y, Matsuyama J, Kurokawa Y, Shimokawa T, Fujitani K, Sato T. 203P A phase II trial of trastuzumab combined with irinotecan in patients with advanced HER2-positive chemo-refractory gastric cancer: Osaka Gastrointestinal Cancer Chemotherapy Study Group OGSG1203 (HERBIS-5). Ann Oncol 2015. [DOI: 10.1093/annonc/mdv523.64] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Kosugi C, Koda K, Tanaka K, Shuto K, Matsuo K, Mori M, Hirano A, Hiroshima Y, Endo S, Yanagibashi H, Kikuchi Y. 2071 Evaluation of neoadjuvant chemotherapy with modified FOLFOX6 (combination chemotherapy of infusional 5-FU/l-Leucovorin and intermittent oxaliplatin) with bevacizumab in patients with advanced lower rectal cancer. Eur J Cancer 2015. [DOI: 10.1016/s0959-8049(16)30994-7] [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: 11/30/2022]
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Nakamura T, Nakamura S, Nagashima K, Maki N, Iida E, Umemoto N, Yamada T, Nakano T, Endo S, Umemoto T, Demitsu T. Rapidly progressing squamous cell carcinoma (SCC) on the scrotum following cerebral infarction likely due to cardiac metastasis of SCC: a case report. J Eur Acad Dermatol Venereol 2015; 30:887-8. [PMID: 25712571 DOI: 10.1111/jdv.13053] [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: 11/28/2022]
Affiliation(s)
- T Nakamura
- Department of Dermatology, Jichi Medical University Saitama Medical Center, Saitama, Japan
| | - S Nakamura
- Department of Dermatology, Jichi Medical University Saitama Medical Center, Saitama, Japan
| | - K Nagashima
- Department of Dermatology, Jichi Medical University Saitama Medical Center, Saitama, Japan
| | - N Maki
- Department of Dermatology, Jichi Medical University Saitama Medical Center, Saitama, Japan
| | - E Iida
- Department of Dermatology, Jichi Medical University Saitama Medical Center, Saitama, Japan
| | - N Umemoto
- Department of Dermatology, Jichi Medical University Saitama Medical Center, Saitama, Japan
| | - T Yamada
- Department of Dermatology, Jichi Medical University Saitama Medical Center, Saitama, Japan
| | - T Nakano
- Department of Surgery, Jichi Medical University Saitama Medical Center, Saitama, Japan
| | - S Endo
- Department of Surgery, Jichi Medical University Saitama Medical Center, Saitama, Japan
| | - T Umemoto
- Department of Cardiovascular Surgery, Jichi Medical University Saitama Medical Center, Saitama, Japan
| | - T Demitsu
- Department of Dermatology, Jichi Medical University Saitama Medical Center, Saitama, Japan
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Terabayashi T, Endo S, Uemura Y, Morita M, Fukuda K, Urashima T. Efficient preparation of sialyloligosaccharides from bovine colostrum facilitated by an improved thin-layer chromatographic monitoring system. Int Dairy J 2014. [DOI: 10.1016/j.idairyj.2014.07.006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Matsunaga T, Yamaji Y, Tomokuni T, Morita H, Morikawa Y, Suzuki A, Yonezawa A, Endo S, Ikari A, Iguchi K, El-Kabbani O, Tajima K, Hara A. Nitric oxide confers cisplatin resistance in human lung cancer cells through upregulation of aldo-keto reductase 1B10 and proteasome. Free Radic Res 2014; 48:1371-85. [PMID: 25156503 DOI: 10.3109/10715762.2014.957694] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [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: 11/13/2022]
Abstract
In this study, we show that exposure of human lung cancer A549 cells to cisplatin (cis-diamminedichloroplatinum, CDDP) promotes production of nitric oxide (NO) through generation of reactive oxygen species (ROS) and resulting upregulation of inducible NO synthase (iNOS). The incubation of the cells with a NO donor, diethylenetriamine NONOate, not only reduced the CDDP-induced cell death and apoptotic alterations (induction of CCAAT-enhancer-binding protein homologous protein and caspase-3 activation), but also elevated proteolytic activity of 26S proteasome, suggesting that the activation of proteasome function contributes to the reduction of CDDP sensitivity by NO. Monitoring expression levels of six aldo-keto reductases (AKRs) (1A1, 1B1, 1B10, 1C1, 1C2, and 1C3) during the treatment with the NO donor and subsequent CDDP sensitivity test using the specific inhibitors also proposed that upregulation of AKR1B10 by NO is a key process for acquiring the CDDP resistance in A549 cells. Treatment with CDDP and NO increased amounts of nitrotyrosine protein adducts, indicative of peroxynitrite formation, and promoted the induction of AKR1B10, inferring a relationship between peroxynitrite formation and the enzyme upregulation in the cells. The treatment with CDDP or a ROS-related lipid aldehyde, 4-hydroxy-2-nonenal, facilitated the iNOS upregulation, which was restored by increasing the AKR1B10 expression. In contrast, the facilitation of NO production by CDDP treatment was hardly observed in AKR1B10-overexpressing A549 cells and established CDDP-resistant cancer cells (A549, LoVo, and PC3). Collectively, these results suggest the NO functions as a key regulator controlling AKR1B10 expression and 26S proteasome function leading to gain of the CDDP resistance.
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Affiliation(s)
- T Matsunaga
- Laboratory of Biochemistry, Gifu Pharmaceutical University , Gifu , Japan
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Moriwaki T, Ishida H, Araki M, Endo S, Yoshida S, Kobayashi M, Hamano Y, Sugaya A, Shimoyamada M, Hasegawa N, Imanishi M, Ito Y, Sato D, Ishige K, Fukuda K, Abei M, Yamaguchi T, Hyodo I. A Phase I Study of Gemcitabine (Gem), Cisplatin (Cddp), and S-1 Combination in Untreated Patients (Pts) with Advanced Biliary Tract Cancer (Abtc). Ann Oncol 2014. [DOI: 10.1093/annonc/mdu334.110] [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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Hayashi G, Shibato J, Imanaka T, Cho K, Kubo A, Kikuchi S, Satoh K, Kimura S, Ozawa S, Fukutani S, Endo S, Ichikawa K, Agrawal GK, Shioda S, Fukumoto M, Rakwal R. Unraveling Low-Level Gamma Radiation-Responsive Changes in Expression of Early and Late Genes in Leaves of Rice Seedlings at litate Village, Fukushima. J Hered 2014; 105:723-38. [DOI: 10.1093/jhered/esu025] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
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Moriwaki T, Kajiwara T, Matsumoto T, Suzuki H, Hiroshima Y, Matsuda K, Hirai S, Yamamoto Y, Yamada T, Sugaya A, Kobayashi M, Endo S, Ishige K, Nishina T, Hyodo I. Survival analysis of platinum-refractory patients with advanced esophageal cancer treated with docetaxel or best supportive care alone: a retrospective study. Dis Esophagus 2014; 27:737-43. [PMID: 24917486 DOI: 10.1111/dote.12246] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The survival benefit of second-line chemotherapy with docetaxel in platinum-refractory patients with advanced esophageal cancer (AEC) remains unclear. A retrospective analysis of AEC patients with Eastern Cooperative Oncology Group performance status (PS)≤2 was performed, and major organ functions were preserved, who determined to receive docetaxel or best supportive care (BSC) alone after failure of platinum-based chemotherapy. The post-progression survival (PPS), defined as survival time after disease progression following platinum-based chemotherapy, was analyzed by multivariate Cox regression analysis using factors identified as significant in univariate analysis of various 20 characteristics (age, sex, PS, primary tumor location, etc) including Glasgow prognostic score (GPS), which is a well-known prognostic factor in many malignant tumors. Sixty-six and 45 patients were determined to receive docetaxel and BSC between January 2007 and December 2011, respectively. The median PPS was 5.4 months (95% confidence interval [CI] 4.8-6.0) in the docetaxel group and 3.3 months (95% CI 2.5-4.0) in the BSC group (hazard ratio [HR] 0.56, 95% CI 0.38-0.84, P=0.005). Univariate analysis revealed six significant factors: treatment, PS, GPS, number of metastatic organs, liver metastasis, and bone metastasis. Multivariate analysis including these significant factors revealed three independent prognostic factors: docetaxel treatment (HR 0.62, 95% CI 0.39-0.99, P=0.043), better GPS (HR 0.61, 95% CI 0.46-0.81, P=0.001), and no bone metastasis (HR 0.31, 95% CI 0.15-0.68, P=0.003). There was a trend for PPS in favor of the docetaxel group compared with patients who refused docetaxel treatment in the BSC group (adjusted HR 0.61, 95% CI 0.29-1.29, P=0.20). Docetaxel treatment may have prolonged survival in platinum-refractory patients with AEC.
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Affiliation(s)
- T Moriwaki
- Division of Gastroenterology, University of Tsukuba, Tsukuba, Japan
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Aoyagi T, Kaito C, Sekimizu K, Omae Y, Saito Y, Mao H, Inomata S, Hatta M, Endo S, Kanamori H, Gu Y, Tokuda K, Yano H, Kitagawa M, Kaku M. Impact of psm-mec in the mobile genetic element on the clinical characteristics and outcome of SCCmec-II methicillin-resistant Staphylococcus aureus bacteraemia in Japan. Clin Microbiol Infect 2014; 20:912-9. [PMID: 24476401 DOI: 10.1111/1469-0691.12575] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [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: 10/31/2013] [Revised: 01/20/2014] [Accepted: 01/27/2014] [Indexed: 11/28/2022]
Abstract
Over-expression of alpha-phenol-soluble modulins (PSMs) results in high virulence of community-associated methicillin-resistant Staphylococcus aureus (MRSA). The psm-mec gene, located in the mobile genetic element SCCmec-II, suppresses PSMαs production. Fifty-two patients with MRSA bacteraemia were enrolled. MRSA isolates were evaluated with regard to the psm-mec gene sequence, bacterial virulence, and the minimum inhibitory concentration (MIC) of vancomycin and teicoplanin. Fifty-one MRSA isolates were classified as SCCmec-II, and 10 had one point mutation in the psm-mec promoter. We compared clinical characteristics and outcomes between mutant MRSA and wild-type MRSA. Production of PSMα3 in mutant MRSA was significantly increased, but biofilm formation was suppressed. Wild-type MRSA caused more catheter-related bloodstream infections (30/41 vs. 3/10, p 0.0028), whereas mutant MRSA formed more deep abscesses (4/10 vs. 3/41, p 0.035). Bacteraemia caused by mutant MRSA was associated with reduced 30-day mortality (1/10 vs. 13/41, p 0.25), although this difference was not significant. The MIC90 of teicoplanin was higher for wild-type MRSA (1.5 mg/L vs. 1 mg/L), but the MIC of vancomycin was not different between the two groups. The 30-day mortality of MRSA with a high MIC of teicoplanin (≥1.5 mg/L) was higher than that of strains with a lower MIC (≤0.75 mg/L) (6/10 vs. 6/33, p 0.017). Mutation of the psm-mec promoter contributes to virulence of SCCmec-II MRSA, and the product of psm-mec may determine the clinical characteristics of bacteraemia caused by SCCmec-II MRSA, but it does not affect mortality.
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Affiliation(s)
- T Aoyagi
- Department of Infection Control and Laboratory Diagnostics, Internal Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
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Inoue Y, Onodera M, Fujita Y, Fujino Y, Kikuchi S, Endo S. Factors associated with severe effects following acute glufosinate poisoning. Clin Toxicol (Phila) 2013; 51:846-9. [PMID: 24044532 DOI: 10.3109/15563650.2013.841180] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
CONTEXT In acute glufosinate poisoning, sudden respiratory arrest and convulsion can occur after a latent period of 4-60 h. There is still no factor that accurately predicts the occurrence of these symptoms. OBJECTIVE To elucidate the predictors of severe effects following acute glufosinate poisoning. MATERIALS AND METHODS This study is a retrospective observational case series. The subjects were 16 patients who had acute glufosinate poisoning. They were divided into a group with respiratory arrest or convulsion during hospitalization (severe group) and a group without (non-severe group). The following characteristics (or predictors) were compared between the groups: age, sex, calculated amount of glufosinate (volume of ingested poison (glufosinate-containing herbicide) × glufosinate concentration of the product), time duration from poison ingestion to arrival at our hospital, use of gastric lavage, use of whole bowel irrigation, Glasgow Coma Scale, laboratory parameters, PaO₂/FiO₂ ratio (P/F ratio), shock index, and presence or absence of systemic inflammatory response syndrome (SIRS) on arrival. RESULTS The P/F ratio was significantly lower in the severe group than in the non-severe group (median, 287.5 vs. 409.0; P = 0.049). The receiver operating characteristic (ROC) curve was plotted for the predictor of increasing severity based on the P/F ratio. The area under the curve was 0.714, and the optimal cutoff point for increasing severity was 374.0. The sensitivity was 75.0%, specificity of 71.4%, and accuracy of 75.0%. The shock index was significantly higher (median, 0.52 vs. 0.41; P = 0.031). Significantly more patients had SIRS in the severe group than in the non-severe group (P = 0.015). Logistic regression analysis was performed with a backward elimination procedure. SIRS was selected as the independent predictor of increasing severity (odds ratio, 29.810; 95% confidence interval, 1.011-878.952; P = 0.049). DISCUSSION AND CONCLUSION Severe effects following acute glufosinate poisoning were associated with two positive SIRS criteria. A low P/F ratio may be useful for predicting the occurrence of respiratory complications.
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Affiliation(s)
- Y Inoue
- Department of Emergency Medicine, Iwate Medical University, School of Medicine , Morioka, Iwate , Japan
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Fujino Y, Inoue Y, Onodera M, Kikuchi S, Endo S, Shozushima T, Suzuki K. Risk factors for early re-bleeding and associated hospitalization in patients with colonic diverticular bleeding. Colorectal Dis 2013; 15:982-6. [PMID: 23560619 DOI: 10.1111/codi.12232] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/29/2012] [Accepted: 12/15/2012] [Indexed: 02/08/2023]
Abstract
AIM The annual incidence of colonic diverticular bleeding is increasing, but treatments are not yet well established. Here we aimed to identify the risk factors for early re-bleeding and to determine the associated duration of hospitalization. METHOD Records of 90 emergent patients with colonic diverticular bleeding between 1999 and May 2012 were retrospectively reviewed. They were divided into an early re-bleeding within 1 month group (n = 24) and a no re-bleeding group (n = 66) and we investigated the risk factors for early re-bleeding. In the former group, we calculated the time from the first haemostasis to early re-bleeding and the associated duration of hospitalization. RESULTS Univariate analysis showed that there were significantly more patients with signs of shock (P = 0.00055) and active bleeding on the first colonoscopy after admission (P = 0.020) in the early re-bleeding group. Multivariate conditional logistic regression analysis using stepwise variable selection showed that signs of shock on admission (odds ratio, 5.23; 95% confidence interval, 1.84-14.90; P = 0.0019) remained statistically significant. All patients who re-bled without signs of shock (n = 7) and 16 of 17 with signs of shock re-bled within 126 h (5.25 days) of initial hospitalization. CONCLUSION Shock was an independent risk factor for early re-bleeding. The associated duration of hospitalization was 6 days.
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Affiliation(s)
- Y Fujino
- Department of Critical Care Medicine, Iwate Medical University, Morioka, Iwate, Japan.
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Ikeda S, Tokuda K, Kanamori H, Hirai Y, Endo S, Kunishima H, Kaku M. P119: Hand hygiene compliance among nurses in a Japanese tertiary hospital emergency department. Antimicrob Resist Infect Control 2013. [PMCID: PMC3688184 DOI: 10.1186/2047-2994-2-s1-p119] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Tsuji S, Ohshima S, Yura A, Katayama M, Watanabe A, Teshigawara S, Yoshimura M, Tanaka E, Harada Y, Katada Y, Matsushita M, Taura A, Kitatoube A, Takahashi G, Endo S, Hashimoto J, Saeki Y. THU0442 Serum Prepsepsin (Soluble CD14-Subtype) as a Novel Useful Biomaker for Infection in Patients with Rheumatoid Arthritis (RA). Ann Rheum Dis 2013. [DOI: 10.1136/annrheumdis-2013-eular.970] [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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Suzuki Y, Sato R, Sato M, Endo S. Clinical efficacy of recombinant human soluble thrombomodulin in patients with septic disseminated intravascular coagulation. Crit Care 2013. [PMCID: PMC3643027 DOI: 10.1186/cc11997] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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46
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Sato M, Suzuki Y, Masuda T, Takahashi G, Kojika M, Inoue Y, Endo S. Relationship between serum nitrite/nitrate levels in the early phase of septic acute lung injury and prognosis. Crit Care 2013. [PMCID: PMC3642767 DOI: 10.1186/cc11976] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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47
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Sato R, Suzuki Y, Sato M, Takahashi G, Kojika M, Inoue Y, Endo S. Serum levels of presepsin reffects the APACHE II and SOFA scores in patients with sepsis. Crit Care 2013. [PMCID: PMC3642790 DOI: 10.1186/cc11975] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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Mizuta E, Utami SB, Ohtahara A, Endo S, Mishima M, Hasegawa A, Yamada K, Kato M, Yamamoto K, Ogino K, Ninomiya H, Miyazaki S, Hamada T, Taniguchi SI, Cheng J, Hisatome I. A vasodilating β1 blocker celiprolol inhibits muscular release of uric acid precursor in patients with essential hypertension. Horm Metab Res 2013; 45:69-73. [PMID: 22893261 DOI: 10.1055/s-0032-1321872] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
Although nonvasodilating β1 blockers increase the levels of uric acid in serum, it is not known whether vasodilating β1 blockers have a similar effect. In the present study, we evaluated the effect of celiprolol on the release of hypoxanthine, a uric acid precursor, from muscles after an exercise. We used the semi-ischemic forearm test to examine the release of lactate (ΔLAC), ammonia (ΔAmm), and hypoxanthine (ΔHX) before and 4, 10, and 60 min after an exercise in 18 hypertensive patients as well as 4 normotensive subjects. Before celiprolol treatment, all the levels of ΔHX and ΔAmm, and ΔLAC were increased by semi-ischemic exercise in hypertensive patients, and the increases were remarkably larger than those in normotensive subjects. Celiprolol decreased both systolic and diastolic pressure. It also decreased the levels of ΔHX and ΔAmm without changes in ΔLAC after an exercise. These findings also were confirmed by summation of each metabolite (ΣΔMetabolites). Celiprolol caused a marginal decrease of serum uric acid, but the difference was not statistically significant. On the other hand, nonvasodilating β1 blockers did not suppress the levels of ΔHX and ΔAmm, whereas they significantly increased ΔLAC after an exercise. Celiprolol improved energy metabolism in skeletal muscles. It suppressed HX production and consequently did not adversely affect serum uric acid levels.
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Affiliation(s)
- E Mizuta
- Division of Molecular Medicine and Therapeutics, Tottori University Faculty of Medicine, Yonago, Japan
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Endo S, Kimura S, Takatsuji T, Nanasawa K, Imanaka T, Shizuma K. Measurement of soil contamination by radionuclides due to the Fukushima Dai-ichi Nuclear Power Plant accident and associated estimated cumulative external dose estimation. J Environ Radioact 2012; 111:18-27. [PMID: 22137554 DOI: 10.1016/j.jenvrad.2011.11.006] [Citation(s) in RCA: 94] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/14/2011] [Revised: 11/04/2011] [Accepted: 11/10/2011] [Indexed: 05/31/2023]
Abstract
Soil sampling was carried out at an early stage of the Fukushima Dai-ichi Nuclear Power Plant (FDNPP) accident. Samples were taken from areas around FDNPP, at four locations northwest of FDNPP, at four schools and in four cities, including Fukushima City. Radioactive contaminants in soil samples were identified and measured by using a Ge detector and included (129 m)Te, (129)Te, (131)I, (132)Te, (132)I, (134)Cs, (136)Cs, (137)Cs, (140)Ba and (140)La. The highest soil depositions were measured to the northwest of FDNPP. From this soil deposition data, variations in dose rates over time and the cumulative external doses at the locations for 3 months and 1y after deposition were estimated. At locations northwest of FDNPP, the external dose rate at 3 months after deposition was 4.8-98 μSv/h and the cumulative dose for 1 y was 51 to 1.0 × 10(3)mSv; the highest values were at Futaba Yamada. At the four schools, which were used as evacuation shelters, and in the four urban cities, the external dose rate at 3 months after deposition ranged from 0.03 to 3.8μSv/h and the cumulative doses for 1 y ranged from 3 to 40 mSv. The cumulative dose at Fukushima Niihama Park was estimated as the highest in the four cities. The estimated external dose rates and cumulative doses show that careful countermeasures and remediation will be needed as a result of the accident, and detailed measurements of radionuclide deposition densities in soil will be important input data to conduct these activities.
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Affiliation(s)
- S Endo
- Graduate School of Engineering, Hiroshima University, 1-4-1 Kagamiyama, Higashi-Hiroshima 739-8527, Japan.
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Terasaka S, Kobayashi H, Kamoshima Y, Motegi H, Endo S, Kaneko S, Houkin K. Surgical Approach for Pontine Cavernous Malformation. Skull Base Surg 2012. [DOI: 10.1055/s-0032-1314283] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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