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Rybak M, Bakx T, Baselmans J, Karatsu K, Kohno K, Takekoshi T, Tamura Y, Taniguchi A, van der Werf P, Endo A. Deshima 2.0: Rapid Redshift Surveys and Multi-line Spectroscopy of Dusty Galaxies. J Low Temp Phys 2022; 209:766-778. [PMID: 36467121 PMCID: PMC9712333 DOI: 10.1007/s10909-022-02730-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/01/2021] [Accepted: 04/08/2022] [Indexed: 06/17/2023]
Abstract
We present a feasibility study for the high-redshift galaxy part of the Science Verification Campaign with the 220-440 GHz deshima 2.0 integrated superconducting spectrometer on the ASTE telescope. The first version of the deshima 2.0 chip has been recently manufactured and tested in the lab. Based on these realistic performance measurements, we evaluate potential target samples and prospects for detecting the [CII] and CO emission lines. The planned observations comprise two distinct, but complementary objectives: (1) acquiring spectroscopic redshifts for dusty galaxies selected in far-infrared/mm-wave surveys; (2) multi-line observations to infer physical conditions in dusty galaxies.
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Affiliation(s)
- M. Rybak
- Faculty of Electrical Engineering, Mathematics and Computer Science, Delft University of Technology, Mekelweg 4, 2628 CD Delft, The Netherlands
- Leiden Observatory, Leiden University, Niels Bohrweg 2, 2333 CA Leiden, The Netherlands
| | - T. Bakx
- Division of Particle and Astrophysical Science, Graduate School of Science, Nagoya University, Furocho, Chikusa-ku, Nagoya, Aichi 464-8602 Japan
- National Astronomical Observatory of Japan, 2-21-1 Osawa, Mitaka, Tokyo 181-8588 Japan
| | - J. Baselmans
- Faculty of Electrical Engineering, Mathematics and Computer Science, Delft University of Technology, Mekelweg 4, 2628 CD Delft, The Netherlands
- SRON – Netherlands Institute for Space Research, Niels Bohrweg 4, 2333 CA Leiden, The Netherlands
| | - K. Karatsu
- Faculty of Electrical Engineering, Mathematics and Computer Science, Delft University of Technology, Mekelweg 4, 2628 CD Delft, The Netherlands
- SRON – Netherlands Institute for Space Research, Niels Bohrweg 4, 2333 CA Leiden, The Netherlands
| | - K. Kohno
- Institute of Astronomy, Graduate School of Science, The University of Tokyo, 2-21-1 Osawa, Mitaka, Tokyo 181-0015 Japan
- Research Center for the Early Universe, Graduate School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033 Japan
| | - T. Takekoshi
- Institute of Astronomy, Graduate School of Science, The University of Tokyo, 2-21-1 Osawa, Mitaka, Tokyo 181-0015 Japan
- Kitami Institute of Technology, 165 Koen-cho, Kitami, Hokkaido 090-8507 Japan
| | - Y. Tamura
- Division of Particle and Astrophysical Science, Graduate School of Science, Nagoya University, Furocho, Chikusa-ku, Nagoya, Aichi 464-8602 Japan
| | - A. Taniguchi
- Division of Particle and Astrophysical Science, Graduate School of Science, Nagoya University, Furocho, Chikusa-ku, Nagoya, Aichi 464-8602 Japan
| | - P. van der Werf
- Leiden Observatory, Leiden University, Niels Bohrweg 2, 2333 CA Leiden, The Netherlands
| | - A. Endo
- Faculty of Electrical Engineering, Mathematics and Computer Science, Delft University of Technology, Mekelweg 4, 2628 CD Delft, The Netherlands
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Endo A, Komagata Y, Yamagishi K, Kawashima S, Arimura Y, Kaname S. Two distinct subsets of LDGs (low density granulocytes) in ANCA-associated vasculitis. Mod Rheumatol 2022; 32:396-405. [PMID: 33896353 DOI: 10.1080/14397595.2021.1918883] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2020] [Accepted: 04/09/2021] [Indexed: 01/25/2023]
Abstract
OBJECTIVES AND METHODS Anti-neutrophil cytoplasmic antibody (ANCA)-associated vasculitis (AAV) is an autoimmune disorder that causes vasculitis in small blood vessels throughout the body. Low-density granulocytes (LDGs) in autoimmune diseases, such as SLE and AAV, might play a critical role in the pathogenesis of these diseases. Here, we aimed to determine the characteristics of LDGs in patients with AAV. We assessed the number of whole white blood cells, neutrophil extracellular traps (NETs) productivity, proportion of cell surface markers (e.g. CD10), responses to immunosuppressants, and proteomics of LDGs in patients with AAV. RESULTS We found more LDGs in peripheral blood mononuclear cells (PBMCs) of patients with AAV than PBMCs of healthy controls (HCs) and confirmed that these LDGs in AAV produced more NETs than normal density granulocytes (NDGs) in HCs. We identified CD10-positive LDGs with mature neutrophil features and CD10-negative LDGs with immature granulocyte properties; the proportion of the two LDG types decreased and increased, respectively, in the patients during treatment. Proteomic analysis revealed that the two LDG groups shared protein expression that differed from those of NDGs. CONCLUSION We identified distinct CD10-positive and CD10-negative LDGs in patients with AAV. The roles of these LDGs in AAV pathology will require further investigation.
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Affiliation(s)
- Akiko Endo
- Department of Nephrology and Rheumatology, Kyorin University School of Medicine, Tokyo, Japan
| | - Yoshinori Komagata
- Department of Nephrology and Rheumatology, Kyorin University School of Medicine, Tokyo, Japan
| | - Konomi Yamagishi
- Department of Nephrology and Rheumatology, Kyorin University School of Medicine, Tokyo, Japan
| | - Soko Kawashima
- Department of Nephrology and Rheumatology, Kyorin University School of Medicine, Tokyo, Japan
| | - Yoshihiro Arimura
- Department of Nephrology and Rheumatology, Kyorin University School of Medicine, Tokyo, Japan
| | - Shinya Kaname
- Department of Nephrology and Rheumatology, Kyorin University School of Medicine, Tokyo, Japan
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Abstract
Fructophilic lactic acid bacteria (FLAB) are heterofermentative and related to the genera Fructilactobacillus, Convivina, Leuconostoc, Oenococcus and Weissella. Although they generally prefer fructose above glucose, obligate heterofermentative species will ferment glucose in the presence of external electron acceptors such as pyruvate and fructose. Little is known about the presence of FLAB in the human gut, let alone probiotic properties. In this review we discuss the possible role FLAB may have in the human gastro-intestinal tract (GIT) and highlight the advantages and disadvantages these bacteria may have in individuals with a diet high in fructose.
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Affiliation(s)
- L M T Dicks
- Department of Microbiology, University of Stellenbosch, Matieland, Stellenbosch, 7602, South Africa
| | - A Endo
- Department of Food, Aroma and Cosmetic Chemistry, Tokyo University of Agriculture, Hokkaido 099-2493, Japan
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4
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Endo A, Yasuda Y, Kawahara H, Kagawa Y, Sakamoto T, Ouchi T, Watanabe N, Yamaguchi K, Yoshitomi H, Tanabe K. The effectiveness of strict low-density lipoprotein cholesterol management in secondary prevention of Japanese patients. Eur Heart J 2021. [DOI: 10.1093/eurheartj/ehab724.2564] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Background
In Japanese guidelines, target value of low-density lipoprotein cholesterol (LDL-C) <100mg/dL is recommended as standard management for secondary prevention of coronary artery disease. On the other hand, the guidelines also state that LDL-C targeting <70mg/dL should be considered in high-risk patients. However, the effectiveness of strict LDL-C management in the prevention of long-term coronary event recurrence in Japanese patients remains unclear.
Purpose
The purpose of the present study was to evaluate whether the strict management of LDL-C targeting <70 mg/dL was effective to prevent recurrence of acute coronary syndrome (ACS) than standard management in patients with previous percutaneous coronary intervention (PCI).
Methods
From January 2007 to August 2020, we performed coronary angiography in 359 patients with previous PCI who were suspected of having signs of recurrent cardiac ischemia. Patients were stratified into three groups according to achieved LDL-C value; <70mg/dL (n=57), 70 to <100mg/dL (n=135) and ≥100mg/dL (n=167). In addition, patients who had previous ACS and/or diabetes mellitus were defined as high-risk group, and sub-analysis by their achieved LDL-C values was performed in high-risk group and non-high-risk group. Endpoint was recurrence of ACS. Moreover, risk factors associated with recurrent-ACS were examined in patients with LDL-C <100 mg/dL.
Results
After follow-up (median 6.1 years), 99 patients (28%) had recurrent-ACS. Recurrent-ACS was significantly lower in patients with LDL-C <70mg/dL than LDL-C 70 to <100mg/dL and LDL-C ≥100mg/dL (p<0.01 and p<0.001, respectively). In sub-analysis, high-risk group with LDL-C <70 mg/dL had lower incidence of recurrent-ACS than LDL-C 70 to <100 mg/dL (p=0.03). Similar tendency was found in non-high-risk group (p=0.08). There was no difference of recurrent-ACS between high-risk group and non-high-risk group in patients with LDL-C <70mg/dL (p=0.41). Moreover, in patients with achieved LDL-C <100mg/dL (n=192), multivariate analysis identified that LDL-C (HR: 1.032, p<0.01) and HbA1c (HR: 1.330, p<0.01) were independent predictors of recurrent-ACS. In these patients, whether or not they were in the high-risk group was not a significant predictor (p=0.61).
Conclusions
Strict management of LDL-C targeting <70 mg/dL should be considered for a wider range of Japanese patients as well as for Westerners to prevent recurrence of ACS in secondary prevention.
Funding Acknowledgement
Type of funding sources: None. Probability of freedom from ACS
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Affiliation(s)
- A Endo
- Shimane University Faculty of Medicine, Izumo, Japan
| | - Y Yasuda
- Shimane University Faculty of Medicine, Izumo, Japan
| | - H Kawahara
- Shimane University Faculty of Medicine, Izumo, Japan
| | - Y Kagawa
- Shimane University Faculty of Medicine, Izumo, Japan
| | - T Sakamoto
- Shimane University Faculty of Medicine, Izumo, Japan
| | - T Ouchi
- Shimane University Faculty of Medicine, Izumo, Japan
| | - N Watanabe
- Shimane University Faculty of Medicine, Izumo, Japan
| | - K Yamaguchi
- Shimane University Faculty of Medicine, Izumo, Japan
| | | | - K Tanabe
- Shimane University Faculty of Medicine, Izumo, Japan
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Petoussi-Henss N, Satoh D, Endo A, Eckerman KF, Bolch WE, Hunt J, Jansen JTM, Kim CH, Lee C, Saito K, Schlattl H, Yeom YS, Yoo SJ. ICRP Publication 144: Dose Coefficients for External Exposures to Environmental Sources. Ann ICRP 2021; 49:11-145. [PMID: 33115250 DOI: 10.1177/0146645320906277] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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6
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Endo A, Kagawa Y, Sato H, Morita Y, Kawahara H, Yasuda Y, Ouchi T, Watanabe N, Yamaguchi K, Yoshitomi H, Tanabe K. Effectiveness of more strict managements after achievement of standard target value of low-density lipoprotein cholesterol in secondary prevention of Japanese patients. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.2987] [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
In secondary prevention of coronary artery disease, target value of low-density lipoprotein cholesterol (LDL-C) <100 mg/dL is recommended as standard management in Japanese guideline. The guideline also stated that strict management of LDL-C targeting <70 mg/dL is considered in some high risk patients. However, in Japanese patients, effectiveness of more strict management of LDL-C lowering therapy for prevention of long-term cardiovascular events remains unclear.
Purpose
The purpose of the present study was to evaluate whether the strict management of LDL-C targeting <70 mg/dL was effective to prevent recurrence of long-term coronary events than standard management in patients with previous percutaneous coronary intervention (PCI).
Methods
We investigated 344 patients with previous PCI who underwent late coronary angiography to examine recurrence of cardiac ischemia beyond the early phase of restenosis from January 2007 to August 2019. Patients were stratified into three groups according to achieved LDL-C value; LDL-C <70mg/dL (n=53), 70 to <100mg/dL (n=130) and ≥100mg/dL (n=161). Endpoints of this study were recurrence of cardiac ischemia presenting as acute coronary syndrome (recurrence-ACS) and any late coronary revascularization.
Results
During average 7.1 years follow-up, 200 patients (58%) underwent any late coronary revascularization. In 94 of those patients, recurrence-ACS was observed. The incidence of recurrence-ACS was significantly lower in patients with achieved LDL-C <70mg/dL than in those with LDL-C 70 to <100mg/dL and LDL-C ≥100mg/dL (p=0.009 and p=0.001, respectively), however, there was no difference between patients with LDL-C 70 to <100mg/dL and LDL-C ≥100mg/dL (p=0.140). Any late revascularization was significantly lower in patients with achieved LDL-C <70mg/dL and in those with LDL-C 70 to <100mg/dL than in those with LDL-C ≥100mg/dL (p=0.002 and p<0.001, respectively), however, no difference was found between patients with LDL-C <70mg/dL and LDL-C 70 to <100mg/dL (p=0.119). Moreover, in patients with achieved LDL-C <100mg/dL (n=183), multivariate analysis identified that LDL-C (HR 1.035, p=0.007) and HbA1c (HR 1.338, p=0.001) were independent predictors of recurrence-ACS. In contrast, only using statins (HR 0.461, p=0.009) was an independent predictor of recurrence-ACS in patients with achieved LDL-C ≥100mg/dL.
Conclusions
LDL-C was the important residual risk of recurrence-ACS even after recommended standard LDL-C lowering management had been achieved. More strict management of LDL-C targeting to <70mg/dL should be considered to prevent recurrence-ACS for wider range of Japanese patients in secondary prevention.
Incidence of late coronary events
Funding Acknowledgement
Type of funding source: None
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Affiliation(s)
- A Endo
- Shimane University Faculty of Medicine, Division of Cardiology, Izumo, Japan
| | - Y Kagawa
- Shimane University Faculty of Medicine, Division of Cardiology, Izumo, Japan
| | - H Sato
- Shimane University Faculty of Medicine, Division of Cardiology, Izumo, Japan
| | - Y Morita
- Shimane University Faculty of Medicine, Division of Cardiology, Izumo, Japan
| | - H Kawahara
- Shimane University Faculty of Medicine, Division of Cardiology, Izumo, Japan
| | - Y Yasuda
- Shimane University Faculty of Medicine, Division of Cardiology, Izumo, Japan
| | - T Ouchi
- Shimane University Faculty of Medicine, Division of Cardiology, Izumo, Japan
| | - N Watanabe
- Shimane University Faculty of Medicine, Division of Cardiology, Izumo, Japan
| | - K Yamaguchi
- Shimane University Faculty of Medicine, Division of Cardiology, Izumo, Japan
| | | | - K Tanabe
- Shimane University Faculty of Medicine, Division of Cardiology, Izumo, Japan
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Sakamoto T, Ito S, Endo A, Yoshitomi H, Tanabe K. Classification of HFrEF based on echocardiography using machine learning to predict future HFrecEF events. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.0923] [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
In recent years, there have been sporadic reports of heart failure with recovered ejection fraction (HFrecEF), wherein the left ventricular EF (LVEF) has been improved by considering temporal changes in the LVEF. Although patients with HFrecEF are known to have a better prognosis than other groups, the type of heart failure associated with reduced EF (HFrEF) that subsequently transitions to HFrecEF is yet to be determined.
Purpose
In this study, we examined whether it is possible to predict future HFrecEF events by stratifying the HFrEF using machine learning based on previously recorded echocardiographic indices.
Methods
For 162 patients, with HFrEF and a history of hospitalization owing to heart failure, who underwent echocardiography in a stable hemodynamic state, stratification was performed via machine learning. Regarding temporal changes in the LVEF, 73 patients who underwent another echocardiography under stable conditions were investigated (52 with continued HFrEF and 21 with HFrecEF, with a median follow up of 397 days). HFrEF was defined as a condition for patients with an LVEF of less than 50%, and HFrecEF was defined as a condition for patients who initially had an LVEF of less than 50% but later improved. Patients with severe valvular disease, acute myocardial infarction, acute myocarditis, acute pulmonary embolism, post-cardiac surgery, and pericardial disease were excluded from this group. The random forest method was used as a classification method for machine learning.
Results
When 162 patients with HFrEF were stratified using machine learning, 63 were classified into Cluster 1 and 99 into Cluster 2. Cluster 1 patients showed a significantly higher tendency to transition to HFrecEF than Cluster 2 patients (p=0.001). The Gini coefficient was calculated to identify echocardiographic indices that are important for the purpose of stratification. As a result, LVEF, left ventricular endo-diastolic volume (LVEDV), the thickness of interventricular septum (IVSth), E/A ratio, and the maximum diameter of the inferior vena cava were found to be particularly important. Compared to Cluster 2 patients, Cluster 1 patients exhibited a significantly higher LVEF (41.5±5.9% vs 27.0±7.6%, p<0.001), lower LVEDV (93.6±36.8 mL vs 141.1±51.7 mL, p<0.001), and a higher IVSth (10.8±2.6 mm vs 9.4±2.5 mm, p<0.001).
Conclusion
Stratifying HFrEF via machine learning based on echocardiographic indices can help predict temporal changes in the LVEF and deduce the echocardiographic indices useful for improving LVEF.
Funding Acknowledgement
Type of funding source: None
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Affiliation(s)
- T Sakamoto
- Shimane University Hospital, Izumo, Japan
| | - S Ito
- Shimane University Hospital, Izumo, Japan
| | - A Endo
- Shimane University Hospital, Izumo, Japan
| | | | - K Tanabe
- Shimane University Hospital, Izumo, Japan
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Bolch WE, Eckerman K, Endo A, Hunt JGS, Jokisch DW, Kim CH, Kim KP, Lee C, Li J, Petoussi-Henss N, Sato T, Schlattl H, Yeom YS, Zankl M. ICRP Publication 143: Paediatric Reference Computational Phantoms. Ann ICRP 2020; 49:5-297. [PMID: 33000625 DOI: 10.1177/0146645320915031] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Ito S, Kinoshita K, Endo A, Kami R, Kotake Y, Nakamura M. Inter- and intra-core laboratory variability in the quantitative coronary angiography analysis for drug-eluting stent treatment and follow up. Ther Adv Cardiovasc Dis 2020; 14:1753944720958982. [PMID: 32993464 PMCID: PMC7534069 DOI: 10.1177/1753944720958982] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
AIM To evaluate inter-core laboratory variability of quantitative coronary angiography (QCA) parameters in comparison with intra-core laboratory variability in a randomized controlled trial evaluating drug-eluting stents. METHODS A total of 50 patients with 62 coronary lesions were analyzed by four analysis experts belonging to an Angiographic Core Laboratory (ACL: 1 expert) and a Cardiovascular Imaging Core Laboratory (CICL: 3 experts). QCA was based on the same standard operating procedure, but selections of projection and cine frames were at the discretion of each analyst. Inter- and intra-core laboratory variabilities were evaluated by accuracy, precision, Bland Altman analysis, and coefficient of variation. RESULTS Pre-MLD (minimal lumen diameter) was significantly smaller in results from ACL than those from all CICL experts. Number of analyzed projections did not affect pre-MLD results. Acute gain was larger in ACL than in CICL2. No significant difference was observed in late loss and loss index between inter-core laboratories. Agreement between core labs in the Bland-Altman analysis for each QCA parameter was as follows (mean difference, 95% limits of agreement): pre-MLD (-0.32, -0.74 to 0.10), stent MLD (0.08, -0.28 to 0.44), acute gain (0.22, -0.44 to 0.88), and late loss (-0.07, -0.69 to 0.55). Agreement between analysts in CICL (mean difference, 95% limits of agreement) was: pre MLD (-0.03, -0.37 to 0.31), stent MLD (0.15, -0.15 to 0.45), acute gain (0.05, -0.45 to 0.55), and late loss (0.04, -0.52 to 0.60). The widest limits of agreement among three analyses were shown in both analyses. Width of limited agreement in the intra-core laboratory analysis tended to be smaller than the inter-core laboratory analysis with these parameters. Coefficient of variation tended to be larger in lesion length (LL), acute gain, late loss, and loss index in inter- and in intra- core laboratory comparisons. CONCLUSION Inter-core laboratory QCA variability in late loss and loss index analysis could be similar to intra-core laboratory variability, but more strict alignment between core laboratories would be necessary for initial procedural data analysis.
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Affiliation(s)
- Shigenori Ito
- Division of Cardiology, Sankuro Hospital, 7-80 Kosaka-cho, Toyota-shi, Aichi-ken, 471-0035, Japan.,Japan Cardiovascular Imaging Core Laboratory, Tokyo, Japan
| | | | - Akiko Endo
- Japan Cardiovascular Imaging Core Laboratory, Tokyo, Japan
| | - Ryoko Kami
- Japan Cardiovascular Imaging Core Laboratory, Tokyo, Japan
| | - Yuko Kotake
- Japan Cardiovascular Imaging Core Laboratory, Tokyo, Japan
| | - Masato Nakamura
- Division of Cardiology, Toho University Medical Center Ohashi Hospital, Tokyo, Japan.,Japan Cardiovascular Imaging Core Laboratory, Tokyo, Japan
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Endo A, Nishiura H. Age and geographic dependence of Zika virus infection during the outbreak on Yap island, 2007. Math Biosci Eng 2020; 17:4115-4126. [PMID: 32987571 DOI: 10.3934/mbe.2020228] [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] [Indexed: 06/11/2023]
Abstract
Intensive surveillance of Zika virus infection conducted on Yap Island has provided crucial information on the epidemiological characteristics of the virus, but the rate of infection and medical attendance stratified by age and geographical location of the epidemic have yet to be fully clarified. In the present study, we reanalyzed surveillance data reported in a previous study. Likelihood-based Bayesian inference was used to gauge the age and geographically dependent force of infection and age-dependent reporting rate, with unobservable variables imputed by the data augmentation method. The inferred age-dependent component of the force of infection was suggested to be up to 3-4 times higher among older adults than among children. The age-dependent reporting rate ranged from 0.7% (5-9 years old) to 3.3% (50-54 years old). The proportion of serologically confirmed cases among total probable or confirmed cases was estimated to be 44.9%. The cumulative incidence of infection varied by municipality: Median values were over 80% in multiple locations (Gagil, Tomil, and Weloy), but relatively low values (below 50%) were derived in other locations. However, the possibility of a comparably high incidence of infection was not excluded even in municipalities with the lowest estimates. The results suggested a high degree of heterogeneity in the Yap epidemic. The force of infection and reporting rate were higher among older age groups, and this discrepancy implied that the demographic patterns were remarkably different between all infected and medically attended individuals. A higher reporting rate may have reflected more severe clinical presentation among adults. The symptomatic ratio in dengue cases is known to correlate with age, and our findings presumably indicate a similar tendency in Zika virus disease.
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Affiliation(s)
- A Endo
- Graduate School of Medicine, Hokkaido University, Kita 15 Jo Nishi 7 Chome, Kita-ku, Sapporo 060-8638, Japan
- Department of Infectious Disease Epidemiology, London School of Hygiene and Tropical Medicine, Keppel Street, Bloomsbury, London WC1E 7HT, United Kingdom
| | - H Nishiura
- Graduate School of Medicine, Hokkaido University, Kita 15 Jo Nishi 7 Chome, Kita-ku, Sapporo 060-8638, Japan
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Hanaoka S, Endo A, Hayashi H, Hirai T, Seki T. Histamine-2 receptor antagonists (H₂RA) may negatively impact ADL assessment in patients on a convalescent rehabilitation ward. Pharmazie 2020; 75:82-89. [PMID: 32213239 DOI: 10.1691/ph.2020.9858] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 09/29/2022]
Abstract
Background/aim: In the convalescent rehabilitation ward, many elderly patients undergo rehabilitation. Histamine-2 receptor antagonists (H₂RA), which is a one of the acid secretion inhibitors, is frequently prescribed for the patients as a peptic ulcer prevention measure. At present, H₂RA are reported as being associated with factors that reduce cognitive function. However, little is known about the relationship H₂RA and rehabilitation outcome. Therefore, this study examined the relationship between H₂RA use and Functional Independence Measure (FIM) gain, which determines rehabilitation outcomes for patients admitted to the convalescent rehabilitation ward. Patients and methods: We retrospectively investigated FIM gain on discharge by both the administration group (H₂RA (+)) (n = 118) and non-administration group (H₂RA (-)) (n = 118). Results: The FIM gain scores of Motor FIM total, Cognition FIM total, and Total FIM were significantly lower in H₂RA (+) than in H₂RA (-) (Motor FIM total: 8.0 [4.0-16.0] [Inter-Quartile Range] vs. 12.0 [5.0-19.2], p =0.0217, Cognition FIM total: 3.0 [1.0-6.0] vs. 5.0 [2.0-7.0], p =0.0120, Total FIM: 11.5 [4.8-20.2] vs. 17.0 [8.0-27.0], p =0.0089). Conclusion: The administration of H₂RA to elderly patients undergoing rehabilitation may prevent cognitive function maintenance or recovery by rehabilitation.
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Affiliation(s)
- S Hanaoka
- Department of Clinical Pharmacotherapy, School of Pharmacy, Nihon University, 7-7-1 Narashinodai, Funabashi-shi, Chiba 274-8555, Japan;,
| | - A Endo
- Department of Clinical Pharmacotherapy, School of Pharmacy, Nihon University, 7-7-1 Narashinodai, Funabashi-shi, Chiba 274-8555, Japan
| | - H Hayashi
- Department of Clinical Pharmacotherapy, School of Pharmacy, Nihon University, 7-7-1 Narashinodai, Funabashi-shi, Chiba 274-8555, Japan
| | - T Hirai
- Department of Clinical Pharmacotherapy, School of Pharmacy, Nihon University, 7-7-1 Narashinodai, Funabashi-shi, Chiba 274-8555, Japan
| | - T Seki
- Department of Clinical Pharmacotherapy, School of Pharmacy, Nihon University, 7-7-1 Narashinodai, Funabashi-shi, Chiba 274-8555, Japan
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Yamaguchi K, Yoshitomi H, Nakamura T, Okazaki K, Morita Y, Kawahara Y, Kagawa Y, Ouchi T, Sato H, Watanabe N, Endo A, Tanabe K. P1520 Aortic flow reversal caused by aortic regurgitation deteriorates renal function. Eur Heart J Cardiovasc Imaging 2020. [DOI: 10.1093/ehjci/jez319.943] [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
Chronic kidney disease is a growing public health problem. Renal dysfunction is known as a strong risk factor for cardiovascular disease and end-stage renal failure. The presence of pan-diastolic flow reversal in the abdominal aorta is a very specific sign of severe aortic regurgitation (AR). A higher aortic reverse/forward flow ratio is associated with lower intrarenal forward flow. However, the influence of AR on renal function has been poorly understood. We hypothesized that the aortic flow reversal reduces the renal artery forward flow and accordingly leads to renal dysfunction in patients with severe AR.
Methods
The study consisted of 21 consecutive patients (mean age 69 ± 11 years) with severe AR who underwent aortic valve replacement (AVR). We compared echocardiographic indices and the glomerular filtration rate (GFR) before and 603 ± 541 days after AVR.
Results
Blood pressure was 122 ± 16/54 ± 8 mmHg before AVR and 123 ± 16/76 ± 11 mmHg after AVR. After AVR, left ventricular (LV) end-diastolic dimension decreased from 57 ± 9 to 44 ± 5 mm and LV ejection fraction increased from 58 ± 12 to 60 ± 11 %. Estimated GFR significantly increased from 62.9 ± 18.9 to 71.8 ± 18.1 mL/min per 1.73 m2 after AVR (p = 0.003).
Conclusions An increase in aortic flow reversal caused by severe AR reduces forward flow into the kidney and thereby deteriorates renal function. This study demonstrated a key mediating role of central hemodynamic factors, particularly an exaggerated aortic flow reversal in renal dysfunction and severe AR.
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Affiliation(s)
- K Yamaguchi
- Shimane University, Faculty of Medicine, Izumo, Japan
| | - H Yoshitomi
- Shimane University, Faculty of Medicine, Izumo, Japan
| | - T Nakamura
- Shimane University, Faculty of Medicine, Izumo, Japan
| | - K Okazaki
- Shimane University, Faculty of Medicine, Izumo, Japan
| | - Y Morita
- Shimane University, Faculty of Medicine, Izumo, Japan
| | - Y Kawahara
- Shimane University, Faculty of Medicine, Izumo, Japan
| | - Y Kagawa
- Shimane University, Faculty of Medicine, Izumo, Japan
| | - T Ouchi
- Shimane University, Faculty of Medicine, Izumo, Japan
| | - H Sato
- Shimane University, Faculty of Medicine, Izumo, Japan
| | - N Watanabe
- Shimane University, Faculty of Medicine, Izumo, Japan
| | - A Endo
- Shimane University, Faculty of Medicine, Izumo, Japan
| | - K Tanabe
- Shimane University, Faculty of Medicine, Izumo, Japan
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13
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Endo A, Okada T, Kagawa Y, Sato H, Morita Y, Pak M, Ouchi T, Watanabe N, Yamaguchi K, Yoshitomi H, Tanabe K. P642What is the most important residual risk after achievement of appropriate low-density lipoprotein cholesterol lowering therapy in secondary prevention of Japanese patients? Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz747.0249] [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
In secondary prevention of coronary artery disease, target value of low-density lipoprotein cholesterol (LDL-C) <100mg/dL with using statins is recommended as standard therapy in Japanese guideline. However, impact of residual risks after achievement of standard LDL-C lowering therapy was not fully examined. Furthermore, there is little information whether more strict management of LDL-C lowering is effective to prevent long-term cardiovascular events than standard management.
Purpose
The purpose of this study was to evaluate the relationship between residual risks after achievement of standard LDL-C lowering therapy and long-term coronary events in secondary prevention of Japanese patients.
Methods
From January 2007 to August 2018, 333 patients with previous percutaneous coronary intervention underwent late coronary angiography to examine recurrence of cardiac ischemia beyond the early phase of restenosis. We defined appropriate LDL-C lowering therapy as achieved LDL-C <100mg/dL with using statins. Patients whose achieved LDL-C was <100mg/dL with using statins were classified as Appropriate-group (n=139), and patients who were not using statins or whose achieved LDL-C was ≥100mg/dL were classified as Inappropriate-group (n=194). Endpoints of the study were recurrence of cardiac ischemia as acute coronary syndrome (recurrence-ACS) and any late coronary revascularization.
Results
During average 7.1 years follow-up, 195 patients (59%) underwent any late coronary revascularization. In 91 of those patients, clinical presentation of recurrence-ACS was observed. Kaplan-Meier curve analysis revealed that the incidence of recurrence-ACS and any late coronary revascularization were significantly lower in Appropriate-group than in Inappropriate-group (p=0.017 and p<0.001, respectively). In Appropriate-group, recurrence-ACS was significantly lower in patients with achieved LDL-C <70mg/dL than in those with LDL-C 70 to <100mg/dL (p=0.042), however, any late revascularization was not different between the two groups. On the other hand, in Inappropriate-group, recurrence-ACS was significantly lower in patients with using statins than in those without using statins (p=0.038), and any late revascularization was less frequent in patients with achieved LDL-C <100mg/dL than in those with LDL-C ≥100mg/dL (p=0.035). Moreover, multivariate analysis identified that only LDL-C was an independent predictor of recurrence-ACS in Appropriate-group (HR: 1.047, p=0.006), in contrast, LDL-C (HR: 1.008, p=0.020), using statins (HR: 0.555, p=0.034) and triglyceride (HR: 1.003, p=0.038) were independent predictors of recurrence-ACS in Inappropriate-group.
Conclusions
LDL-C was the most important residual risk of recurrence-ACS even after recommended standard therapy has been achieved. More strict management of LDL-C targeting to <70mg/dL should be considered in secondary prevention of Japanese patients.
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Affiliation(s)
- A Endo
- Shimane University Faculty of Medicine, Division of Cardiology, Izumo, Japan
| | - T Okada
- Shimane University Faculty of Medicine, Division of Cardiology, Izumo, Japan
| | - Y Kagawa
- Shimane University Faculty of Medicine, Division of Cardiology, Izumo, Japan
| | - H Sato
- Shimane University Faculty of Medicine, Division of Cardiology, Izumo, Japan
| | - Y Morita
- Shimane University Faculty of Medicine, Division of Cardiology, Izumo, Japan
| | - M Pak
- Shimane University Faculty of Medicine, Division of Cardiology, Izumo, Japan
| | - T Ouchi
- Shimane University Faculty of Medicine, Division of Cardiology, Izumo, Japan
| | - N Watanabe
- Shimane University Faculty of Medicine, Division of Cardiology, Izumo, Japan
| | - K Yamaguchi
- Shimane University Faculty of Medicine, Division of Cardiology, Izumo, Japan
| | | | - K Tanabe
- Shimane University Faculty of Medicine, Division of Cardiology, Izumo, Japan
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14
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Hosoda M, Hozumi W, Akata N, Endo A, Kelleher K, Yamanouchi K, Imajo Y, Fukuhara T, Shiroma Y, Iwaoka K, Tokonami S. EVALUATIONS OF INVENTORY AND ACTIVITY CONCENTRATION OF RADIOCESIUM IN SOIL AT A RESIDENTIAL HOUSE 3 YEARS AFTER THE FUKUSHIMA NUCLEAR ACCIDENT. Radiat Prot Dosimetry 2019; 184:518-522. [PMID: 31330027 DOI: 10.1093/rpd/ncz071] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/02/2019] [Accepted: 04/04/2019] [Indexed: 06/10/2023]
Abstract
Soil samples from the surface to a 5 cm depth were collected at a residential house in Koriyama City, Fukushima Prefecture using a scraper plate every three months from March 2014 to September 2014 to evaluate the vertical distribution profiles and inventories of 134Cs and 137Cs in soil. The vertical distribution profiles of radiocesium (134Cs and 137Cs) in soil showed that greater than 86% of the total radiocesium was absorbed in the upper 2 cm 3 years after the accident. Radiocesium in the surface layer seems to move to the lower layer over time. The migration of radiocesium in surface layer might be influenced by the ground surface runoff by rainfall. Radiocesium inventories in June increased significantly over the short period between March and June. In contrast, the radiocesium inventories in September did not increase significantly compared to the values in June. Radiocesium resuspension and deposition caused by decontamination work and meteorological events might be one possible reason for the increased radiocesium inventories observed in June.
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Affiliation(s)
- M Hosoda
- Hirosaki University, Hirosaki, Japan
| | - W Hozumi
- Hirosaki University, Hirosaki, Japan
| | - N Akata
- National Institute for Fusion Science/The Graduate University for Advanced Studies, Toki, Japan
| | - A Endo
- Hirosaki University, Hirosaki, Japan
| | - K Kelleher
- Environmental Protection Agency, Dublin, Ireland
| | | | - Y Imajo
- Advanced Fusion Technology Co., Ltd, Tokyo, Japan
| | - T Fukuhara
- Advanced Fusion Technology Co., Ltd, Tokyo, Japan
| | - Y Shiroma
- Hirosaki University, Hirosaki, Japan
| | - K Iwaoka
- Hirosaki University, Hirosaki, Japan
- National Institutes for Quantum and Radiological Science and Technology, Chiba, Japan
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15
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Endo A, Sawano M, Ikemura N, Takei M, Suzuki K, Hasegawa T, Takahashi T, Nakagawa S, Fukuda K, Kohsaka S. P684Long-term outcomes in patients with cancer undergoing percutaneous coronary intervention: analysis from a Japan multicenter registry. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz747.0290] [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
Cancer and cardiovascular disease (CVD) is the most common cause of death in developed countries, and substantial overlap exist in their medical care. However, the detailed and updated information on outcome of cancer patients with cardiovascular disease (CVD), particularly in clinically significant coronary artery disease (CAD) remain unknown.
Purpose
We sought to describe the prevalence and long-term outcomes of cancer patients undergoing percutaneous coronary intervention (PCI), which has become a coronerstone in the management of CVD.
Methods
Patient data extracted from a regional prospectiveprocedure-based multicenter registry for PCI was analyzed. A total of 4,455 patients who underwent PCI at 15 hospitals within metropolitan Tokyo from September 2008 to 2012 were followed for 2 years. “Active” cancer patient was defined as having a history of cancer not cured or in remission. We analyzed in acute and stable presentation.The occurrence of clinical outcomes was assessed via Kaplan-Meier survival curve, and Cox-regression hazard model to adjust for known clinical predictors.
Results
Within the studied patients, 173 (3.9%) had a concomitant “active” cancer at the time of intervention. There was a significant difference between the patients with and without active cancer in each situation. In stable presentation, cancer group were older, lower BMI, frequently had silent ischemia, COPD and cerebrovascular/peripheral disease, and less often had dyslipidemia compared with non-cancer group. In acute presentation, cancer group were older, frequently had COPD, CKD, peripheral disease and history of HF compared with non-cancer group. The prescription rate of RAAS inhibitor was lower in the cancer group than in the non-cancer group in acute presentation. Notably, in both acute and stable presentation, these patients had significantly higher risk of all-cause mortality (HR 8.01: 95%, p<0.001 and HR5.53: 95%, p<0.001, respectively), and they were also at higher risk of major cardo- and cerebrovascular events (MACCE; HR2.38, p<0.001, HR2.33, p=0.001), when referenced to non-cancer patients after 2 year of follow-up.
Conclusion
Cancer patient was present in 3.9% of all PCI patients and was strongly associated with both non-cardiac and cardiac adverse events.
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Affiliation(s)
- A Endo
- Tokyo Saiseikai Central Hospital, Tokyo, Japan
| | - M Sawano
- Keio University School of Medicine, Cardiology, Tokyo, Japan
| | - N Ikemura
- Keio University School of Medicine, Cardiology, Tokyo, Japan
| | - M Takei
- Tokyo Saiseikai Central Hospital, Tokyo, Japan
| | - K Suzuki
- Tokyo Saiseikai Central Hospital, Tokyo, Japan
| | - T Hasegawa
- Tokyo Saiseikai Central Hospital, Tokyo, Japan
| | - T Takahashi
- Tokyo Saiseikai Central Hospital, Tokyo, Japan
| | - S Nakagawa
- Tokyo Saiseikai Central Hospital, Tokyo, Japan
| | - K Fukuda
- Keio University School of Medicine, Cardiology, Tokyo, Japan
| | - S Kohsaka
- Keio University School of Medicine, Cardiology, Tokyo, Japan
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16
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Sakamoto T, Ito S, Uchida K, Kuroda H, Minoji T, Endo A, Yoshitomi H, Tanabe K. P2478Prognostic impact and severity assessment of combinational elastography in heart failure patients. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz748.0809] [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
Heart failure (HF) causes liver congestion, which is thought to increase liver stiffness. Elastography is a noninvasive method of measuring organ stiffness that was originally developed to evaluate fibrosis caused by liver diseases such as cirrhosis. There are two main techniques of elastography: shear wave imaging and strain imaging. Shear wave imaging varies significantly due to the influence of not only fibrosis but also congestion, inflammation, and jaundice. In contrast, strain imaging in chronic liver disease reflects only the progression of liver fibrosis. We previously presented a method that is measuring both shear wave and strain imaging (combinational elastography) for assessing liver congestion. This study demonstrates the prognostic impact and severity assessment of combinational elastography in HF patients.
Methods
This study included 144 HF patients (age 76.4±12.3, men 67). The velocity of shear wave (Vs) values was measured with shear wave imaging. Fibrosis index (F Index) was calculated by measuring both shear wave and strain imaging.
Results
During a median follow-up of 161 days, 14 deaths or hospitalization for HF was observed. A multivariable cox regression analysis demonstrated that high vs values was dependently correlated with higher mortality rate and HF hospitalization (hazard ratio: 2.31; 95% confidence interval: 1.09–4.89; p=0.029). The Kaplan-Meier analysis demonstrated that high vs (>1.87 m/s) was associated with higher hospitalization rates for HF compared with low vs (≤1.87 m/s, log rank test, p<0.001). F index showed graded elevation as stage of HF progressed (stage A or B, C, D: 1.19±0.43, 1.38±0.56, 2.8±1.32; p<0.001).
Conclusion
Combinational elastography can predict the severity of HF.
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Affiliation(s)
- T Sakamoto
- Shimane University Hospital, Izumo, Japan
| | - S Ito
- Shimane University Hospital, Izumo, Japan
| | - K Uchida
- Masuda Red Cross Hospital, Masuda, Japan
| | - H Kuroda
- Masuda Red Cross Hospital, Masuda, Japan
| | - T Minoji
- Masuda Red Cross Hospital, Masuda, Japan
| | - A Endo
- Shimane University Hospital, Izumo, Japan
| | | | - K Tanabe
- Shimane University Hospital, Izumo, Japan
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17
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Ito S, Kinoshita K, Endo A, Nakamura M. Impact of Cine Frame Selection on Quantitative Coronary Angiography Results. Clin Med Insights Cardiol 2019; 13:1179546819838232. [PMID: 30967747 PMCID: PMC6444776 DOI: 10.1177/1179546819838232] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/13/2018] [Accepted: 02/19/2019] [Indexed: 11/15/2022]
Abstract
We evaluated intra- and interobserver variability of quantitative coronary
angiography (QCA) due to cine frame selection for 9 coronary stenoses. The
projection was selected in advance. Cine frames were selected by 2 blinded
experts (blind frame QCA) followed by assignment by supervisor (pre-selected
frame QCA). Each expert analyzed 18 frames twice with a 3-month interval. A
total of 72 measurements by 2 experts were used for intra- and interobserver
variability analysis in calibration factor (CF), minimal lumen diameter (MLD),
percent diameter stenosis (%DS), interpolated reference diameter (Int R), and
lesion length (LL). Accuracy, precision, and coefficient of variation (CV) were
calculated based on 2 measurements. For interobserver variability, intraclass
correlation coefficient (ICC) was evaluated. Regarding intraobserver
variability, precision (CV) was 0.0026 (1.45), 0.220 (25.1), 0.282 (11.0), 7.626
(11.8), and 4.042 (28.7) for blind frame QCA and 0.0044 (2.46), 0.094 (11.2),
0.225 (8.6), 3.924 (5.9), and 1.941 (12.1) for pre-selected frame QCA and
regarding interobserver variability, precision (CV) was 0.0037 (2.09), 0.271
(31.8), 0.307 (11.9), 10.10 (15.4), and 5.121 (39.5) for blind frame QCA and
0.0050 (2.82), 0.098 (11.4), 0.246 (9.5), 5.253 (8.0), and 2.857 (19.0) for
pre-selected frame QCA in CF, MLD, Int R, %DS, and LL, respectively. Intraclass
correlation coefficient of Int R was almost perfect in blind and pre-selected
frame QCA. Intraclass correlation coefficient of MLD, %DS, and LL were
substantial/lower by blind frame QCA and improved to almost perfect by
pre-selected frame QCA. Blind cine film selection might affect intra- and
interobserver variability, especially in MLD and LL. In the multiple linear
regression analysis, blind frame QCA was selected as an explanatory factor of
QCA variability in MLD, %DS, and LL. The error range due to frame selection must
be taken into consideration in clinical use.
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Affiliation(s)
- Shigenori Ito
- Japan Cardiovascular Imaging Core Laboratory, Tokyo, Japan.,Division of Cardiology, Nagoya City East Medical Center, Nagoya, Japan.,Division of Cardiology, Sankuro Hospital, Toyota, Japan
| | | | - Akiko Endo
- Japan Cardiovascular Imaging Core Laboratory, Tokyo, Japan
| | - Masato Nakamura
- Japan Cardiovascular Imaging Core Laboratory, Tokyo, Japan.,Division of Cardiology, Toho University Medical Center Ohashi Hospital, Tokyo, Japan
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18
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Endo A, Komagata Y, Yamagishi K, Kawashima S, Ikegaya N, Kawakami T, Fukuoka K, Karube M, Kaname S. 198. TWO DISTINCT SUBSETS OF LOW DENSITY GRANULOCYTES IN ANCA-ASSOCIATED VASCULITIS. Rheumatology (Oxford) 2019. [DOI: 10.1093/rheumatology/kez061.013] [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: 11/13/2022] Open
Affiliation(s)
- Akiko Endo
- Kyorin University School of Medicine Mitaka, Japan
| | | | | | | | | | | | | | - Miho Karube
- Kyorin University School of Medicine Mitaka, Japan
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19
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Sakamoto T, Ito S, Uchida K, Kuroda H, Minoji T, Endo A, Yoshitomi H, Tanabe K. P1500Evaluation of hepatic congestion on liver stiffness in patients with heart failure by shear wave and strain imaging (combinational elastography). Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy565.p1500] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- T Sakamoto
- Shimane University Hospital, Izumo, Japan
| | - S Ito
- Shimane University Hospital, Izumo, Japan
| | - K Uchida
- Masuda Red Cross Hospital, Masuda, Japan
| | - H Kuroda
- Masuda Red Cross Hospital, Masuda, Japan
| | - T Minoji
- Masuda Red Cross Hospital, Masuda, Japan
| | - A Endo
- Shimane University Hospital, Izumo, Japan
| | | | - K Tanabe
- Shimane University Hospital, Izumo, Japan
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20
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Otto T, Hertel NE, Bartlett DT, Behrens R, Bordy JM, Dietze G, Endo A, Gualdrini G, Pelliccioni M. The ICRU Proposal for New Operational Quantities for External Radiation. Radiat Prot Dosimetry 2018; 180:10-16. [PMID: 29165634 DOI: 10.1093/rpd/ncx243] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Report Committee 26 of the ICRU proposes a set of operational quantities for radiation protection for external radiation, directly based on effective dose and for an extended range of particles and energies. It is accompanied by quantities for estimating deterministic effects to the eye lens and the local skin. The operational quantities are designed to overcome the conceptual and technical shortcomings of those presently in use. This paper describes the proposed operational quantities, and highlights the improvements with respect to the present, legal monitoring quantities.
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Affiliation(s)
- T Otto
- European Organization for Nuclear Research (CERN), Geneva, Switzerland
| | | | | | - R Behrens
- Physikalisch-Technische Bundesanstalt (PTB), Braunschweig, Germany
| | - J-M Bordy
- CEA, LIST, Laboratoire National Henri Becquerel (LNE-LNHB), Gif-sur-Yvette, France
| | | | - A Endo
- Japan Atomic Energy Agency (JAEA), Japan
| | - G Gualdrini
- Ente per le Nuove Tecnologie, L'Energia e L'Ambiente (ENEA), Bologna, Italy
| | - M Pelliccioni
- Istituto Nazionale di Fisica Nucleare (INFN), Frascati, Italy
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21
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Endo A, Shiraishi A, Fushimi K, Murata K, Otomo Y. Outcomes of patients receiving a massive transfusion for major trauma. Br J Surg 2018; 105:1426-1434. [PMID: 29999518 DOI: 10.1002/bjs.10905] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2017] [Revised: 04/27/2018] [Accepted: 05/07/2018] [Indexed: 01/05/2023]
Abstract
BACKGROUND The benefits of high transfusion ratios (plasma to red blood cells and platelets to red blood cells) on survival in injured patients who receive massive transfusions remain uncertain. This study aimed to assess the association between transfusion ratios and adverse events and survival in patients undergoing massive transfusion for major trauma. METHODS A retrospective observational study was conducted on patients who had major trauma using a Japanese national administrative database. The associations between transfusion ratios and outcomes (in-hospital mortality and incidence of adverse events) were analysed using a non-linear logistic generalized additive model (GAM). In a logistic generalized estimating equation model, adjusted for patient and hospital-level confounders, transfusion ratios were included as continuous or categorical variables (low, transfusion ratio 0·75 or less; intermediate, over 0·75 to 1·25; high, over 1·25). RESULTS Some 1777 patients were included in the analysis, of whom 602 died in hospital. GAM plots of the transfusion ratios for in-hospital mortality demonstrated a downward convex unimodal curve. In-hospital mortality was similar with increasing transfusion ratios for plasma (adjusted odds ratio (OR) 1·13, 95 per cent c.i. 0·82 to 1·55; P = 0·446) and platelets (adjusted OR 0·84, 0·66 to 1·08; P = 0·171). Both plasma to red blood cell ratio (adjusted OR 1·77, 1·32 to 2·37; P < 0·001) and platelet to red blood cell ratio (adjusted OR 1·71, 1·35 to 2·15; P < 0·001) were significantly associated with a higher incidence of adverse events. No significant differences in in-hospital mortality were observed between the three transfusion categories (low, medium and high). CONCLUSION In this study, transfusion strategies with high plasma to red blood cell and platelet to red blood cell ratios did not have survival benefits, but were associated with an increase in adverse events.
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Affiliation(s)
- A Endo
- Trauma and Acute Critical Care Medical Centre, Tokyo Medical and Dental University Hospital of Medicine, Tokyo, Japan
| | - A Shiraishi
- Trauma and Acute Critical Care Medical Centre, Tokyo Medical and Dental University Hospital of Medicine, Tokyo, Japan.,Emergency and Trauma Centre, Kameda Medical Centre, Kamogawa, Japan
| | - K Fushimi
- Department of Health Policy and Informatics, Tokyo Medical and Dental University Graduate School of Medicine, Tokyo, Japan
| | - K Murata
- Trauma and Acute Critical Care Medical Centre, Tokyo Medical and Dental University Hospital of Medicine, Tokyo, Japan.,Shock Trauma and Emergency Medical Centre, Matsudo City Hospital, Matsudo, Japan
| | - Y Otomo
- Trauma and Acute Critical Care Medical Centre, Tokyo Medical and Dental University Hospital of Medicine, Tokyo, Japan
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22
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Horiuchi M, Endo A, Ishii M, Kaji R. Is Nerbloc, the botulinum toxin type b formulation, an effective therapy for cervical dystonia?: In our cases. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.991] [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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23
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Ito S, Ito S, Kodani N, Endo A, Okada T, Watanabe N, Ouchi T, Yoshitomi H, Tanabe K. 4777Clinical utility of 99mTc-PYP and 201Tl-Cl SPECT imaging using quantitative evaluation in patients with suspected cardiac amyloidosis. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx493.4777] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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24
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Endo A, Okada T, Kagawa Y, Pak M, Ito S, Ouchi T, Watanabe N, Yamaguchi K, Yoshitomi H, Tanabe K. 5968Comparison of the low-density lipoprotein cholesterol target value and the preventive effect of statins in elderly patients and younger patients. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx493.5968] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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25
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Sakamoto T, Pak M, Ito S, Okada T, Kagawa Y, Nakamura T, Ouchi T, Watanabe N, Endo A, Yoshitomi H, Tanabe K. P5263Cutoff for left ventricular ejection fraction that will change from reduced to preserved or preserved to reduced in patients with heart failure. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx493.p5263] [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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26
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Oba A, Nakamura M, Murai T, Matsuda C, Itaya K, Koike Y, Endo A, Tsukuda Y, Ono Y, Kudo T, Nagasaka A, Nishikawa S. 543P Thromboembolism in gastrointestinal tract cancer patients receiving chemotherapy: Preplanned analysis of risk factors and survival. Ann Oncol 2016. [DOI: 10.1093/annonc/mdw599.022] [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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27
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Dicks L, Endo A. Taxonomic Status of Lactic Acid Bacteria in Wine and Key Characteristics to Differentiate Species. S AFR J ENOL VITIC 2016. [DOI: 10.21548/30-1-1427] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
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Bolch WE, Jokisch D, Zankl M, Eckerman KF, Fell T, Manger R, Endo A, Hunt J, Kim KP, Petoussi-Henss N. ICRP Publication 133: The ICRP computational framework for internal dose assessment for reference adults: specific absorbed fractions. Ann ICRP 2016; 45:5-73. [PMID: 29749258 DOI: 10.1177/0146645316661077] [Citation(s) in RCA: 59] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Dose coefficients for assessment of internal exposures to radionuclides are radiological protection quantities giving either the organ equivalent dose or effective dose per intake of radionuclide following ingestion or inhalation. In the International Commission on Radiological Protection’s (ICRP) Occupational Intakes of Radionuclides (OIR) publication series, new biokinetic models for distribution of internalised radionuclides in the human body are presented as needed for establishing time-integrated activity within organs of deposition (source regions). This series of publications replaces Publications 30 and 68 (ICRP, 1979, 1980, 1981, 1988, 1994b). In addition, other fundamental data needed for computation of the dose coefficients are radionuclide decay data (energies and yields of emitted radiations), which are given in Publication 107 (ICRP, 2008), and specific absorbed fraction (SAF) values – defined as the fraction of the particle energy emitted in a source tissue region that is deposited in a target tissue region per mass of target tissue. This publication provides the technical basis for SAFs relevant to internalised radionuclide activity in the organs of Reference Adult Male and Reference Adult Female as defined in Publications 89 and 110 (ICRP, 2002, 2009). SAFs are given for uniform distributions of mono-energetic photons, electrons, alpha particles, and fission-spectrum neutrons over a range of relevant energies. Electron SAFs include both collision and radiative components of energy deposition. SAF data are matched to source and target organs of the biokinetic models of the OIR publication series, as well as the Publication 100 (ICRP, 2006) Human Alimentary Tract Model and the Publication 66 (ICRP, 1994a) Human Respiratory Tract Model, the latter as revised within Publication 130 (ICRP, 2015). This publication further outlines the computational methodology and nomenclature for assessment of internal dose in a manner consistent with that used for nuclear medicine applications. Numerical data for particle-specific and energy-dependent SAFs are given in electronic format for numerical coupling to the respiratory tract, alimentary tract, and systemic biokinetic models of the OIR publication series.
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Nakamura M, Ishiguro A, Muranaka T, Yuki S, Ohno K, Murai T, Matsuda C, Oba A, Itaya K, Yagisawa M, Koike Y, Endo A, Tsukuda Y, Ono Y, Kudo T, Nagasaka A, Nishikawa S, Komatsu Y. A prospective observational study of the impact on bone metabolism of short-term periodic steroid premedication of chemotherapy for gastrointestinal cancer. (ESPRESSO-01 study): pre-planed subgroup analysis. Ann Oncol 2016. [DOI: 10.1093/annonc/mdw370.98] [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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Endo A, Yates SJC, Bueno J, Thoen DJ, Murugesan V, Baryshev AM, Klapwijk TM, van der Werf PP, Baselmans JJA. Superconducting Coplanar Waveguide Filters for Submillimeter Wave On-Chip Filterbank Spectrometers. J Low Temp Phys 2016; 184:412-417. [PMID: 27340291 PMCID: PMC4880640 DOI: 10.1007/s10909-016-1579-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/29/2015] [Accepted: 03/02/2016] [Indexed: 06/06/2023]
Abstract
We show the first experimental results which prove that superconducting NbTiN coplanar-waveguide resonators can achieve a loaded Q factor in excess of 800 in the 350 GHz band. These resonators can be used as narrow band pass filters for on-chip filter bank spectrometers for astronomy. Moreover, the low-loss coplanar waveguide technology provides an interesting alternative to microstrip lines for constructing large scale submillimeter wave electronics in general.
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Affiliation(s)
- A. Endo
- />Department of Microelectronics, Faculty of Electrical Engineering, Mathematics and Computer Science, Delft University of Technology, Mekelweg 4, 2628 CD Delft, The Netherlands
- />Kavli Institute of Nanoscience, Faculty of Applied Sciences, Delft University of Technology, Lorentzweg 1, 2628 CJ Delft, The Netherlands
| | - S. J. C. Yates
- />SRON Netherlands Institute for Space Research, Landleven 12, 9747 AD Groningen, The Netherlands
| | - J. Bueno
- />SRON Netherlands Institute for Space Research, Sorbonnelaan 2, 3584 CA Utrecht, The Netherlands
| | - D. J. Thoen
- />Department of Microelectronics, Faculty of Electrical Engineering, Mathematics and Computer Science, Delft University of Technology, Mekelweg 4, 2628 CD Delft, The Netherlands
| | - V. Murugesan
- />SRON Netherlands Institute for Space Research, Sorbonnelaan 2, 3584 CA Utrecht, The Netherlands
| | - A. M. Baryshev
- />SRON Netherlands Institute for Space Research, Landleven 12, 9747 AD Groningen, The Netherlands
- />Kapteyn Astronomical Institute, University of Groningen, P.O. Box 800, 9700 AV Groningen, The Netherlands
| | - T. M. Klapwijk
- />Kavli Institute of Nanoscience, Faculty of Applied Sciences, Delft University of Technology, Lorentzweg 1, 2628 CJ Delft, The Netherlands
- />Physics Department, Moscow State Pedagogical University, 119991 Moscow, Russia
| | - P. P. van der Werf
- />Leiden Observatory, Leiden University, PO Box 9513, 2300 RA Leiden, The Netherlands
| | - J. J. A. Baselmans
- />Department of Microelectronics, Faculty of Electrical Engineering, Mathematics and Computer Science, Delft University of Technology, Mekelweg 4, 2628 CD Delft, The Netherlands
- />SRON Netherlands Institute for Space Research, Sorbonnelaan 2, 3584 CA Utrecht, The Netherlands
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Endo A, Matsuoka R, Mizuno Y, Doi A, Nishioka H. Sequential necrotizing fasciitis caused by the monomicrobial pathogens Streptococcus equisimilis and extended-spectrum beta-lactamase-producing Escherichia coli. J Infect Chemother 2016; 22:563-6. [PMID: 26912298 DOI: 10.1016/j.jiac.2016.01.021] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2015] [Revised: 01/13/2016] [Accepted: 01/21/2016] [Indexed: 11/19/2022]
Abstract
Necrotizing fasciitis is a rapidly progressing bacterial infection of the superficial fascia and subcutaneous tissue that is associated with a high mortality rate and is caused by a single species of bacteria or polymicrobial organisms. Escherichia coli is rarely isolated from patients with monomicrobial disease. Further, there are few reports of extended-spectrum beta-lactamase (ESBL)-producing E. coli associated with necrotizing fasciitis. We report here our treatment of an 85-year-old man who was admitted because of necrotizing fasciitis of his right thigh. Streptococcus equisimilis was detected as a monomicrobial pathogen, and the infection was cured by amputation of the patient's right leg and the administration of antibiotics. However, 5 days after discontinuing antibiotic therapy, he developed necrotizing fasciitis on his right upper limb and died. ESBL-producing E. coli was the only bacterial species isolated from blood and skin cultures. This case demonstrates that ESBL-producing E. coli can cause monomicrobial necrotizing fasciitis, particularly during hospitalization and that a different bacterial species can cause disease shortly after a previous episode.
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Affiliation(s)
- Akiko Endo
- Department of General Internal Medicine, Kobe City Medical Center General Hospital, 2-1-1 Minami-machi, Minatojima, Chuo-ku, Kobe, Hyogo 650-0047, Japan
| | - Ryosuke Matsuoka
- Department of Pathology, Kobe City Medical Center General Hospital, 2-1-1 Minami-machi, Minatojima, Chuo-ku, Kobe, Hyogo 650-0047, Japan
| | - Yasushi Mizuno
- Department of General Internal Medicine, Kobe City Medical Center General Hospital, 2-1-1 Minami-machi, Minatojima, Chuo-ku, Kobe, Hyogo 650-0047, Japan
| | - Asako Doi
- Department of General Internal Medicine, Kobe City Medical Center General Hospital, 2-1-1 Minami-machi, Minatojima, Chuo-ku, Kobe, Hyogo 650-0047, Japan; Department of Infectious Disease, Kobe City Medical Center General Hospital, 2-1-1 Minami-machi, Minatojima, Chuo-ku, Kobe, Hyogo 650-0047, Japan
| | - Hiroaki Nishioka
- Department of General Internal Medicine, Kobe City Medical Center General Hospital, 2-1-1 Minami-machi, Minatojima, Chuo-ku, Kobe, Hyogo 650-0047, Japan; Department of Infectious Disease, Kobe City Medical Center General Hospital, 2-1-1 Minami-machi, Minatojima, Chuo-ku, Kobe, Hyogo 650-0047, Japan.
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Ito S, Kinoshita K, Endo A, Nakamura M, Muramatsu T. Impact of catheter size on reliability of quantitative coronary angiographic measurements (comparison of 4Fr and 6Fr catheters). Heart Vessels 2016; 31:1752-1757. [PMID: 26849831 DOI: 10.1007/s00380-016-0800-7] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/18/2015] [Accepted: 01/15/2016] [Indexed: 12/21/2022]
Abstract
To evaluate the feasibility of catheter down sizing for QCA, the reliability of a 4Fr catheter as a calibration device was evaluated. Repeated coronary angiograms of 9 lesions were obtained using 4Fr and 6Fr catheters under otherwise identical conditions. The calibration factor was measured 10 times by 4Fr and 6Fr catheters. QCA measurements including minimal lumen diameter (MLD), interpolated normal reference (Int N), percent diameter stenosis (%DS), and lesion length (LL) were performed by two technicians twice with a 3-month interval. The intraobserver and interobserver variability of each parameter was evaluated using intraclass correlation coefficients (ICCs). Mean of mean SD of calibration factor was significantly larger in 4Fr than in 6Fr in 9 lesions. The mean of mean coefficient of variance was significantly larger in 4Fr catheters vs in 6Fr catheters. A 6Fr catheter showed excellent reliability for both intraobserver and interobserver variability in MLD, Int N, %DS, and LL. In contrast, 4Fr showed that reliability in intraobserver variability depended on the analyst. Although reliability of interobserver variability in Int N measured by the 4Fr catheter was >0.80, the value was less than that by the 6Fr catheter. Taking these results into consideration, 4Fr catheters are less reliable than 6Fr catheters when measuring QCA data especially for follow-up data that need most accurate measurements of MLD and %DS. It would be better to use a 6Fr catheter to evaluate QCA measurements such as acute gain, late loss, restenosis rate, and device size.
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Affiliation(s)
- Shigenori Ito
- Division of Cardiology, Nagoya City East Medical Center, Nagoya, Japan. .,Japan Cardiovascular Imaging Core Laboratory, Tokyo, Japan. .,Division of Cardiology, Sankuro Hospital, 7-80, Kosaka-cho, Toyota, 471-0035, Japan.
| | | | - Akiko Endo
- Japan Cardiovascular Imaging Core Laboratory, Tokyo, Japan
| | - Masato Nakamura
- Japan Cardiovascular Imaging Core Laboratory, Tokyo, Japan.,Division of Cardiovascular Medicine, Toho University Ohashi Medical Center, Tokyo, Japan
| | - Toshiya Muramatsu
- Japan Cardiovascular Imaging Core Laboratory, Tokyo, Japan.,Division of Cardiology, Tokyo General Hospital, Tokyo, Japan
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Mužík J, Jelínek M, Jambunathan V, Miura T, Smrž M, Endo A, Mocek T, Kubeček V. Cryogenically-cooled Yb:YGAG ceramic mode-locked laser. Opt Express 2016; 24:1402-1408. [PMID: 26832521 DOI: 10.1364/oe.24.001402] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
This work reports on a liquid-nitrogen-cooled, SESAM mode-locked Yb:YGAG (Yb:Y(3)Ga(2)Al(3)O(12)) ceramic laser. The Yb:YGAG has a similar structure to Yb:YAG, but its emission spectrum at low temperature remains much broader, which is suitable for ultrashort pulse generation and amplification. A stable pulse train with 119-MHz repetition rate was obtained at a wavelength of 1026 nm. The measured pulse duration is 2.4 ps, which is more than four times shorter than that achieved with a cryogenically-cooled Yb:YAG. Furthermore, laser performance of the Yb:YGAG ceramics in continuous-wave operation and wavelength tunability at 80 K was investigated.
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Abstract
The present study demonstrates for the first time, the development of mesoporous zirconium hydroxide with high CO2 capacity and sustainable adsorption–desorption performance within a broad range of pressures (100–3000 kPa).
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Affiliation(s)
- Y. Kamimura
- National Institute of Advanced Industrial Science and Technology (AIST)
- Tsukuba
- Japan
| | - A. Endo
- National Institute of Advanced Industrial Science and Technology (AIST)
- Tsukuba
- Japan
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Abstract
A combination of acute urinary retention and aseptic meningitis has occasionally been described, which is referred to as meningitis-retention syndrome. In contrast, acute urinary retention has rarely been reported in bacterial meningitis. We herein report a case of Streptococcus pneumoniae meningitis presenting with acute urinary retention which led to emphysematous cystitis in an elderly woman. She presented with impaired consciousness and a distended lower abdomen. She was diagnosed with pneumococcal meningitis by lumbar puncture. Abdominal computed tomography revealed the presence of emphysematous cystitis. She completely recovered with antibiotic therapy without any complications. Acute urinary retention can occur secondary to pneumococcal meningitis.
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Affiliation(s)
- Yasushi Mizuno
- Department of General Internal Medicine, Kobe City Medical Center General Hospital, Japan
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Negoro T, Shimizu S, Narushima M, Banham AH, Wakabayashi H, Takayanagi R, Hagiwara T, Roncador G, Osabe T, Yanai T, Kin M, Ikeda K, Endo A, Akiyama H, Nakano Y. Elevated receptor for activated C kinase 1 expression is involved in intracellular Ca2+ influx and potentially associated with compromised regulatory T cell function in patients with asthma. Clin Exp Allergy 2015; 44:1154-69. [PMID: 25048599 DOI: 10.1111/cea.12375] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2013] [Revised: 05/09/2014] [Accepted: 07/02/2014] [Indexed: 12/31/2022]
Abstract
BACKGROUND Regulatory T cells (T(regs)) are activated during anergy in response to T cell receptor (TCR) activation and functional immune suppression. Anergy of paediatric T(regs) is partially dependent on intracellular calcium mobility; following TCR activation, T(regs) do not exhibit increased intracellular Ca(2+) concentration ([Ca(2+) ](i)). OBJECTIVE We determined whether [Ca(2+) ](i) in adult T(regs) defined their anergy, if intracellular Ca(2+) movement was linked to regulatory functions, whether [Ca(2+)](i) was indicative of asthma pathology, and the potential molecular mechanism responsible for Ca(2+) movement in T(regs). METHODS T(regs) were purified by the magnetic bead method, and their regulatory functions were assessed by monitoring carboxyfluorescein succinimidyl ester-labelled responder T cell proliferation. The Ca(2+) response of Fura-2-labelled cells was measured using a video image analysis system. To analyse the functions of T(regs) at the molecular level, we generated Jurkat Tet-On(®) clones with doxycycline (Dox)-induced forkhead box P3 (FOXP3) protein expression. RESULTS CD4(+) CD25(+) CD127(-/low) T(regs) from participants without asthma did not elicit Ca(2+) influx in response to TCR activation, exhibited little proliferation and suppressed proliferation of CD4(+) CD25(-) T cells. In contrast, under similar conditions, T(regs) from patients with asthma exhibited increased [Ca(2+)](i) and robust proliferation with partial loss of regulatory functions. FOXP3 protein levels in Tet-On(®) clones were high after both 2- and 5-day Dox treatment; however, 5-day cells were comparable with T(regs) from patients with asthma, whereas 2-day cells were similar to T(regs) from participants without asthma. Increasing [Ca(2+)](i) induced a high level of receptor for activated C kinase 1 (RACK1) expression in 5-day cells. CONCLUSIONS AND CLINICAL RELEVANCE We confirmed that T(regs) in patients with asthma are functionally impaired and that the abnormal regulatory functions of these cells can be analysed by [Ca(2+)](i) following TCR engagement. Furthermore, the impaired functioning of T(regs) evident in patients with asthma may be due to a high level of RACK1.
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Affiliation(s)
- T Negoro
- Department of Pharmacogenomics, Showa University School of Pharmacy, Shinagawa-ku, Tokyo, Japan
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Rühm W, Mares V, Pioch C, Agosteo S, Endo A, Ferrarini M, Rakhno I, Rollet S, Satoh D, Vincke H. Comparison of Bonner sphere responses calculated by different Monte Carlo codes at energies between 1 MeV and 1 GeV – Potential impact on neutron dosimetry at energies higher than 20 MeV. RADIAT MEAS 2014. [DOI: 10.1016/j.radmeas.2014.05.006] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Hatsukade B, Ohta K, Endo A, Nakanishi K, Tamura Y, Hashimoto T, Kohno K. Two γ-ray bursts from dusty regions with little molecular gas. Nature 2014; 510:247-9. [PMID: 24919918 DOI: 10.1038/nature13325] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2013] [Accepted: 04/03/2014] [Indexed: 11/09/2022]
Abstract
Long-duration γ-ray bursts are associated with the explosions of massive stars and are accordingly expected to reside in star-forming regions with molecular gas (the fuel for star formation). Previous searches for carbon monoxide (CO), a tracer of molecular gas, in burst host galaxies did not detect any emission. Molecules have been detected as absorption in the spectra of γ-ray burst afterglows, and the molecular gas is similar to the translucent or diffuse molecular clouds of the Milky Way. Absorption lines probe the interstellar medium only along the line of sight, so it is not clear whether the molecular gas represents the general properties of the regions where the bursts occur. Here we report spatially resolved observations of CO line emission and millimetre-wavelength continuum emission in two galaxies hosting γ-ray bursts. The bursts happened in regions rich in dust, but not particularly rich in molecular gas. The ratio of molecular gas to dust (<9-14) is significantly lower than in star-forming regions of the Milky Way and nearby star-forming galaxies, suggesting that much of the dense gas where stars form has been dissipated by other massive stars.
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Affiliation(s)
- B Hatsukade
- National Astronomical Observatory of Japan, 2-21-1 Osawa, Mitaka, Tokyo 181-8588, Japan
| | - K Ohta
- Department of Astronomy, Kyoto University, Kyoto 606-8502, Japan
| | - A Endo
- Kavli Institute of NanoScience, Faculty of Applied Sciences, Delft University of Technology, Lorentzweg 1, 2628 CJ Delft, The Netherlands
| | - K Nakanishi
- 1] National Astronomical Observatory of Japan, 2-21-1 Osawa, Mitaka, Tokyo 181-8588, Japan [2] Joint ALMA Observatory, Alonso de Córdova 3107, Vitacura, Santiago 763 0355, Chile [3] The Graduate University for Advanced Studies (SOKENDAI), 2-21-1 Osawa, Mitaka, Tokyo 181-8588, Japan
| | - Y Tamura
- Institute of Astronomy, University of Tokyo, 2-21-1 Osawa, Mitaka, Tokyo 181-0015, Japan
| | - T Hashimoto
- National Astronomical Observatory of Japan, 2-21-1 Osawa, Mitaka, Tokyo 181-8588, Japan
| | - K Kohno
- 1] Institute of Astronomy, University of Tokyo, 2-21-1 Osawa, Mitaka, Tokyo 181-0015, Japan [2] Research Centre for the Early Universe, University of Tokyo, 7-3-1 Hongo, Bunkyo, Tokyo 113-0033, Japan
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Selvakumaran N, Bhuvanesh N, Endo A, Karvembu R. Synthesis, structure, DNA and protein binding studies, and cytotoxic activity of nickel(II) complexes containing 3,3-dialkyl/aryl-1-(2,4-dichlorobenzoyl)thiourea ligands. Polyhedron 2014. [DOI: 10.1016/j.poly.2014.03.010] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
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Endo A, Hoshino J, Suwabe T, Sumida K, Mise K, Hiramatsu R, Hasegawa E, Yamanouchi M, Hayami N, Sawa N, Takaichi K, Ohashi K, Fujii T, Ubara Y. Significance of small renal artery lesions in patients with antineutrophil cytoplasmic antibody-associated glomerulonephritis. J Rheumatol 2014; 41:1140-6. [PMID: 24737910 DOI: 10.3899/jrheum.130657] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [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: 11/22/2022]
Abstract
OBJECTIVE Antineutrophil cytoplasmic antibody (ANCA)-associated glomerulonephritis is a vasculitis affecting the glomerular capillaries and small renal arteries. Although crescent formation has been reported to be characteristic of this condition, the significance of coexisting vasculitis affecting the small renal arteries has not been investigated. METHODS Fifty patients with ANCA-positive rapidly progressive glomerulonephritis whose renal biopsy specimens contained arterioles and/or interlobular arteries were retrospectively evaluated. Cellular crescents and/or necrotizing glomerulonephritis were noted in all 50 patients. Ten patients had vasculitis of the small renal arteries (group A) and 40 patients were without such vasculitis (group B). The clinical features of these 2 groups were compared. RESULTS Group A comprised 4 patients who had granulomatosis with polyangiitis (GPA) and 6 with microscopic polyangiitis (MPA), while group B included 1 patient with GPA and 39 with MPA. No patient in either group had eosinophilic granulomatosis with polyangiitis. The C-reactive protein (CRP) level was significantly higher in group A compared with group B (11.58 ± 6.19 vs 2.7 ± 3.55 mg/dl, p < 0.05), and pulmonary involvement was more frequent in group A than group B (80% vs 37.5%, p < 0.05). CONCLUSION In patients with ANCA-positive glomerulonephritis, vasculitis of small renal arteries may be associated with systemic vasculitis (including pulmonary involvement) because of elevated CRP, a systemic inflammatory marker related to overproduction of interleukin 6.
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Affiliation(s)
- Akiko Endo
- From the Nephrology Center and Okinaka Memorial Institute for Medical Research, Department of Pathology, and Nephrology Center, Toranomon Hospital; Division of Nephrology, Department of Internal Medicine, Kyorin University School of Medicine, Tokyo, Japan.A. Endo, MD, Nephrology Center, Toranomon Hospital, and Division of Nephrology, Department of Internal Medicine, Kyorin University School of Medicine; J. Hoshino, MD; T. Suwabe, MD; K. Sumida, MD; K. Mise, MD; R. Hiramatsu, MD; E. Hasegawa, MD; M. Yamanouchi, MD; N. Hayami, MD; N. Sawa, MD, Nephrology Center, Toranomon Hospital; K. Takaichi, MD, Nephrology Center and Okinaka Memorial Institute for Medical Research; K. Ohashi, MD, Nephrology Center; T. Fujii, MD, Department of Pathology; Y. Ubara, MD, Nephrology Center and Okinaka Memorial Institute for Medical Research, Toranomon Hospital.
| | - Junichi Hoshino
- From the Nephrology Center and Okinaka Memorial Institute for Medical Research, Department of Pathology, and Nephrology Center, Toranomon Hospital; Division of Nephrology, Department of Internal Medicine, Kyorin University School of Medicine, Tokyo, Japan.A. Endo, MD, Nephrology Center, Toranomon Hospital, and Division of Nephrology, Department of Internal Medicine, Kyorin University School of Medicine; J. Hoshino, MD; T. Suwabe, MD; K. Sumida, MD; K. Mise, MD; R. Hiramatsu, MD; E. Hasegawa, MD; M. Yamanouchi, MD; N. Hayami, MD; N. Sawa, MD, Nephrology Center, Toranomon Hospital; K. Takaichi, MD, Nephrology Center and Okinaka Memorial Institute for Medical Research; K. Ohashi, MD, Nephrology Center; T. Fujii, MD, Department of Pathology; Y. Ubara, MD, Nephrology Center and Okinaka Memorial Institute for Medical Research, Toranomon Hospital
| | - Tatsuya Suwabe
- From the Nephrology Center and Okinaka Memorial Institute for Medical Research, Department of Pathology, and Nephrology Center, Toranomon Hospital; Division of Nephrology, Department of Internal Medicine, Kyorin University School of Medicine, Tokyo, Japan.A. Endo, MD, Nephrology Center, Toranomon Hospital, and Division of Nephrology, Department of Internal Medicine, Kyorin University School of Medicine; J. Hoshino, MD; T. Suwabe, MD; K. Sumida, MD; K. Mise, MD; R. Hiramatsu, MD; E. Hasegawa, MD; M. Yamanouchi, MD; N. Hayami, MD; N. Sawa, MD, Nephrology Center, Toranomon Hospital; K. Takaichi, MD, Nephrology Center and Okinaka Memorial Institute for Medical Research; K. Ohashi, MD, Nephrology Center; T. Fujii, MD, Department of Pathology; Y. Ubara, MD, Nephrology Center and Okinaka Memorial Institute for Medical Research, Toranomon Hospital
| | - Keiichi Sumida
- From the Nephrology Center and Okinaka Memorial Institute for Medical Research, Department of Pathology, and Nephrology Center, Toranomon Hospital; Division of Nephrology, Department of Internal Medicine, Kyorin University School of Medicine, Tokyo, Japan.A. Endo, MD, Nephrology Center, Toranomon Hospital, and Division of Nephrology, Department of Internal Medicine, Kyorin University School of Medicine; J. Hoshino, MD; T. Suwabe, MD; K. Sumida, MD; K. Mise, MD; R. Hiramatsu, MD; E. Hasegawa, MD; M. Yamanouchi, MD; N. Hayami, MD; N. Sawa, MD, Nephrology Center, Toranomon Hospital; K. Takaichi, MD, Nephrology Center and Okinaka Memorial Institute for Medical Research; K. Ohashi, MD, Nephrology Center; T. Fujii, MD, Department of Pathology; Y. Ubara, MD, Nephrology Center and Okinaka Memorial Institute for Medical Research, Toranomon Hospital
| | - Koki Mise
- From the Nephrology Center and Okinaka Memorial Institute for Medical Research, Department of Pathology, and Nephrology Center, Toranomon Hospital; Division of Nephrology, Department of Internal Medicine, Kyorin University School of Medicine, Tokyo, Japan.A. Endo, MD, Nephrology Center, Toranomon Hospital, and Division of Nephrology, Department of Internal Medicine, Kyorin University School of Medicine; J. Hoshino, MD; T. Suwabe, MD; K. Sumida, MD; K. Mise, MD; R. Hiramatsu, MD; E. Hasegawa, MD; M. Yamanouchi, MD; N. Hayami, MD; N. Sawa, MD, Nephrology Center, Toranomon Hospital; K. Takaichi, MD, Nephrology Center and Okinaka Memorial Institute for Medical Research; K. Ohashi, MD, Nephrology Center; T. Fujii, MD, Department of Pathology; Y. Ubara, MD, Nephrology Center and Okinaka Memorial Institute for Medical Research, Toranomon Hospital
| | - Rikako Hiramatsu
- From the Nephrology Center and Okinaka Memorial Institute for Medical Research, Department of Pathology, and Nephrology Center, Toranomon Hospital; Division of Nephrology, Department of Internal Medicine, Kyorin University School of Medicine, Tokyo, Japan.A. Endo, MD, Nephrology Center, Toranomon Hospital, and Division of Nephrology, Department of Internal Medicine, Kyorin University School of Medicine; J. Hoshino, MD; T. Suwabe, MD; K. Sumida, MD; K. Mise, MD; R. Hiramatsu, MD; E. Hasegawa, MD; M. Yamanouchi, MD; N. Hayami, MD; N. Sawa, MD, Nephrology Center, Toranomon Hospital; K. Takaichi, MD, Nephrology Center and Okinaka Memorial Institute for Medical Research; K. Ohashi, MD, Nephrology Center; T. Fujii, MD, Department of Pathology; Y. Ubara, MD, Nephrology Center and Okinaka Memorial Institute for Medical Research, Toranomon Hospital
| | - Eiko Hasegawa
- From the Nephrology Center and Okinaka Memorial Institute for Medical Research, Department of Pathology, and Nephrology Center, Toranomon Hospital; Division of Nephrology, Department of Internal Medicine, Kyorin University School of Medicine, Tokyo, Japan.A. Endo, MD, Nephrology Center, Toranomon Hospital, and Division of Nephrology, Department of Internal Medicine, Kyorin University School of Medicine; J. Hoshino, MD; T. Suwabe, MD; K. Sumida, MD; K. Mise, MD; R. Hiramatsu, MD; E. Hasegawa, MD; M. Yamanouchi, MD; N. Hayami, MD; N. Sawa, MD, Nephrology Center, Toranomon Hospital; K. Takaichi, MD, Nephrology Center and Okinaka Memorial Institute for Medical Research; K. Ohashi, MD, Nephrology Center; T. Fujii, MD, Department of Pathology; Y. Ubara, MD, Nephrology Center and Okinaka Memorial Institute for Medical Research, Toranomon Hospital
| | - Masayuki Yamanouchi
- From the Nephrology Center and Okinaka Memorial Institute for Medical Research, Department of Pathology, and Nephrology Center, Toranomon Hospital; Division of Nephrology, Department of Internal Medicine, Kyorin University School of Medicine, Tokyo, Japan.A. Endo, MD, Nephrology Center, Toranomon Hospital, and Division of Nephrology, Department of Internal Medicine, Kyorin University School of Medicine; J. Hoshino, MD; T. Suwabe, MD; K. Sumida, MD; K. Mise, MD; R. Hiramatsu, MD; E. Hasegawa, MD; M. Yamanouchi, MD; N. Hayami, MD; N. Sawa, MD, Nephrology Center, Toranomon Hospital; K. Takaichi, MD, Nephrology Center and Okinaka Memorial Institute for Medical Research; K. Ohashi, MD, Nephrology Center; T. Fujii, MD, Department of Pathology; Y. Ubara, MD, Nephrology Center and Okinaka Memorial Institute for Medical Research, Toranomon Hospital
| | - Noriko Hayami
- From the Nephrology Center and Okinaka Memorial Institute for Medical Research, Department of Pathology, and Nephrology Center, Toranomon Hospital; Division of Nephrology, Department of Internal Medicine, Kyorin University School of Medicine, Tokyo, Japan.A. Endo, MD, Nephrology Center, Toranomon Hospital, and Division of Nephrology, Department of Internal Medicine, Kyorin University School of Medicine; J. Hoshino, MD; T. Suwabe, MD; K. Sumida, MD; K. Mise, MD; R. Hiramatsu, MD; E. Hasegawa, MD; M. Yamanouchi, MD; N. Hayami, MD; N. Sawa, MD, Nephrology Center, Toranomon Hospital; K. Takaichi, MD, Nephrology Center and Okinaka Memorial Institute for Medical Research; K. Ohashi, MD, Nephrology Center; T. Fujii, MD, Department of Pathology; Y. Ubara, MD, Nephrology Center and Okinaka Memorial Institute for Medical Research, Toranomon Hospital
| | - Naoki Sawa
- From the Nephrology Center and Okinaka Memorial Institute for Medical Research, Department of Pathology, and Nephrology Center, Toranomon Hospital; Division of Nephrology, Department of Internal Medicine, Kyorin University School of Medicine, Tokyo, Japan.A. Endo, MD, Nephrology Center, Toranomon Hospital, and Division of Nephrology, Department of Internal Medicine, Kyorin University School of Medicine; J. Hoshino, MD; T. Suwabe, MD; K. Sumida, MD; K. Mise, MD; R. Hiramatsu, MD; E. Hasegawa, MD; M. Yamanouchi, MD; N. Hayami, MD; N. Sawa, MD, Nephrology Center, Toranomon Hospital; K. Takaichi, MD, Nephrology Center and Okinaka Memorial Institute for Medical Research; K. Ohashi, MD, Nephrology Center; T. Fujii, MD, Department of Pathology; Y. Ubara, MD, Nephrology Center and Okinaka Memorial Institute for Medical Research, Toranomon Hospital
| | - Kenmei Takaichi
- From the Nephrology Center and Okinaka Memorial Institute for Medical Research, Department of Pathology, and Nephrology Center, Toranomon Hospital; Division of Nephrology, Department of Internal Medicine, Kyorin University School of Medicine, Tokyo, Japan.A. Endo, MD, Nephrology Center, Toranomon Hospital, and Division of Nephrology, Department of Internal Medicine, Kyorin University School of Medicine; J. Hoshino, MD; T. Suwabe, MD; K. Sumida, MD; K. Mise, MD; R. Hiramatsu, MD; E. Hasegawa, MD; M. Yamanouchi, MD; N. Hayami, MD; N. Sawa, MD, Nephrology Center, Toranomon Hospital; K. Takaichi, MD, Nephrology Center and Okinaka Memorial Institute for Medical Research; K. Ohashi, MD, Nephrology Center; T. Fujii, MD, Department of Pathology; Y. Ubara, MD, Nephrology Center and Okinaka Memorial Institute for Medical Research, Toranomon Hospital
| | - Kenichi Ohashi
- From the Nephrology Center and Okinaka Memorial Institute for Medical Research, Department of Pathology, and Nephrology Center, Toranomon Hospital; Division of Nephrology, Department of Internal Medicine, Kyorin University School of Medicine, Tokyo, Japan.A. Endo, MD, Nephrology Center, Toranomon Hospital, and Division of Nephrology, Department of Internal Medicine, Kyorin University School of Medicine; J. Hoshino, MD; T. Suwabe, MD; K. Sumida, MD; K. Mise, MD; R. Hiramatsu, MD; E. Hasegawa, MD; M. Yamanouchi, MD; N. Hayami, MD; N. Sawa, MD, Nephrology Center, Toranomon Hospital; K. Takaichi, MD, Nephrology Center and Okinaka Memorial Institute for Medical Research; K. Ohashi, MD, Nephrology Center; T. Fujii, MD, Department of Pathology; Y. Ubara, MD, Nephrology Center and Okinaka Memorial Institute for Medical Research, Toranomon Hospital
| | - Takeshi Fujii
- From the Nephrology Center and Okinaka Memorial Institute for Medical Research, Department of Pathology, and Nephrology Center, Toranomon Hospital; Division of Nephrology, Department of Internal Medicine, Kyorin University School of Medicine, Tokyo, Japan.A. Endo, MD, Nephrology Center, Toranomon Hospital, and Division of Nephrology, Department of Internal Medicine, Kyorin University School of Medicine; J. Hoshino, MD; T. Suwabe, MD; K. Sumida, MD; K. Mise, MD; R. Hiramatsu, MD; E. Hasegawa, MD; M. Yamanouchi, MD; N. Hayami, MD; N. Sawa, MD, Nephrology Center, Toranomon Hospital; K. Takaichi, MD, Nephrology Center and Okinaka Memorial Institute for Medical Research; K. Ohashi, MD, Nephrology Center; T. Fujii, MD, Department of Pathology; Y. Ubara, MD, Nephrology Center and Okinaka Memorial Institute for Medical Research, Toranomon Hospital
| | - Yoshifumi Ubara
- From the Nephrology Center and Okinaka Memorial Institute for Medical Research, Department of Pathology, and Nephrology Center, Toranomon Hospital; Division of Nephrology, Department of Internal Medicine, Kyorin University School of Medicine, Tokyo, Japan.A. Endo, MD, Nephrology Center, Toranomon Hospital, and Division of Nephrology, Department of Internal Medicine, Kyorin University School of Medicine; J. Hoshino, MD; T. Suwabe, MD; K. Sumida, MD; K. Mise, MD; R. Hiramatsu, MD; E. Hasegawa, MD; M. Yamanouchi, MD; N. Hayami, MD; N. Sawa, MD, Nephrology Center, Toranomon Hospital; K. Takaichi, MD, Nephrology Center and Okinaka Memorial Institute for Medical Research; K. Ohashi, MD, Nephrology Center; T. Fujii, MD, Department of Pathology; Y. Ubara, MD, Nephrology Center and Okinaka Memorial Institute for Medical Research, Toranomon Hospital
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Shioyama H, Mizutani K, Aoyama N, Suda T, Tanaka K, Endo A, Kusunoki Y, Yamawaki F, Fujiwara-Takahashi K, Kinoshita A, Arakawa S, Oda S, Izumi Y. Evaluation of Advanced Dental Technology with Enamel Matrix Derivative and Examination of Prognostic Factors in Periodontal Regenerative Therapy. ACTA ACUST UNITED AC 2014. [DOI: 10.2329/perio.56.302] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Hidehiro Shioyama
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University
- Oral Health Care Clinic, Dental Hospital, Tokyo Medical and Dental University
| | - Koji Mizutani
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University
| | - Norio Aoyama
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University
| | - Tomonari Suda
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University
| | - Keiko Tanaka
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University
| | - Akiko Endo
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University
| | - Yukako Kusunoki
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University
| | - Fumihiro Yamawaki
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University
| | - Kaori Fujiwara-Takahashi
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University
| | - Atsuhiro Kinoshita
- Department of Educational Media Development, Institute for Library and Media Information Technology, Tokyo Medical and Dental University
| | - Shinichi Arakawa
- Deparment of Lifetime Oral Health Care Sciences, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University
| | - Shigeru Oda
- Diagnosis and General Dentistry, Dental Hospital, Tokyo Medical and Dental University
| | - Yuichi Izumi
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University
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Shida Y, Takahashi N, Sakamoto T, Ino H, Endo A, Hirama T. The pharmacokinetics and safety profiles of belimumab after single subcutaneous and intravenous doses in healthy Japanese volunteers. J Clin Pharm Ther 2013; 39:97-101. [PMID: 24117862 DOI: 10.1111/jcpt.12101] [Citation(s) in RCA: 14] [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: 07/11/2013] [Accepted: 09/03/2013] [Indexed: 11/30/2022]
Abstract
WHAT IS KNOWN AND OBJECTIVES Belimumab is a recombinant human monoclonal antibody that binds and antagonizes the biological activity of soluble B-lymphocyte stimulator (BLyS) protein. BLyS appears to play a role in the pathogenesis of systemic lupus erythematosus, and the biological profile of belimumab suggests that it may have a therapeutic benefit in the treatment for the disease. In this healthy Japanese subjects study, we investigated the pharmacokinetics and safety of a single subcutaneous and intravenous injection of belimumab administered as a 200 mg/mL liquid formulation. METHODS This was an open-label, randomized, parallel-group, single-dose study in healthy Japanese subjects. Each subject received a single intravenous infusion or a subcutaneous injection of 200 mg belimumab. The pharmacokinetic parameters and safety parameters including local tolerance (injection site), biomarkers, immunogenicity and adverse events were evaluated up to 70 days post-dosing. RESULTS After a single intravenous or a subcutaneous administration of 200 mg belimumab, all 16 subjects completed the study. There were no serious adverse events or adverse events related to injection site reactions. All seven adverse events were considered mild or moderate in intensity and deemed unrelated to belimumab except for cellulitis following intravenous administration. The bioavailability of the single subcutaneous dose of 200 mg belimumab in the subjects was estimated to be 77·5%. Time to the maximum serum concentration after subcutaneous injection was 6·5 days (median). The geometric mean terminal half-life was comparable between the two administration routes (17·7 days intravenous and 15·9 days subcutaneous). Serum immunoglobulin G level decreased slightly after each treatment. No subjects were found to produce antibelimumab antibodies. WHAT IS NEW AND CONCLUSIONS A favourable absolute bioavailability in healthy Japanese subjects was seen following a subcutaneous injection of 200 mg belimumab. Considering the intersubject variability, exposures were consistent with those previously observed in healthy non-Japanese subjects. Safety and biomarker data were also consistent with previous non-Japanese clinical studies.
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Affiliation(s)
- Y Shida
- Clinical Pharmacology, Medicines Development, Development & Medical Affairs Division, GlaxoSmithKline K.K., Tokyo, Japan
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Yamaguchi K, Yoshitomi H, Watanabe N, Sato H, Adachi T, Ito S, Sugamori T, Takahashi N, Endo A, Tanabe K. Left atrial remodeling and recurrence of congestive heart failure. Eur Heart J 2013. [DOI: 10.1093/eurheartj/eht310.p5759] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Watanabe T, Kitakata R, Matsuda T, Tajima I, Ono H, Ishigaki H, Hakamata A, Shirai M, Endo A, Hongo T. P192 Clinically mild encephalitis/encephalopathy with a reversible splenial lesion: the clinical characteristics. Int J Antimicrob Agents 2013. [DOI: 10.1016/s0924-8579(13)70434-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Grześkowiak Ł, Endo A, Collado MC, Pelliniemi LJ, Beasley S, Salminen S. The effect of growth media and physical treatments on the adhesion properties of canine probiotics. J Appl Microbiol 2013; 115:539-45. [PMID: 23617818 DOI: 10.1111/jam.12235] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [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: 01/18/2013] [Revised: 04/18/2013] [Accepted: 04/19/2013] [Indexed: 01/01/2023]
Abstract
AIMS The manufacturing processes have been reported to influence the properties of probiotics with potential impact on health properties. The aim was to investigate the effect of different growth media and inactivation methods on the properties of canine-originated probiotic bacteria alone and in combination mixture. METHODS AND RESULTS Three established dog probiotics, Lactobacillus fermentum VET9A, Lactobacillus plantarum VET14A and Lactobacillus rhamnosus VET16A, and their combination mixture were evaluated for their adhesion to dog mucus. The effect of different growth media, one reflecting laboratory and the other manufacturing conditions, and inactivation methods (95°C, 80°C and UV irradiation) on the mucus adhesion of the probiotic strains was characterized. Evaluation of dog probiotics was supported by cell visualization using transmission electron microscopy (TEM). Higher adhesion percentage was reported for probiotic strains growing in laboratory rather than in manufacturing conditions (P < 0.05). Inactivation by heat (95°C, 80°C) decreased the adhesion properties when strains were cultivated in soy-based growth media compared with those grown in MRS broth (P < 0.05). TEM observations uncovered differences in cell-surface components in nonviable forms of probiotic strains as compared with their viable forms. CONCLUSIONS Manufacturing process conditions such as growth media and pretreatment methods may significantly affect the adhesive ability of the tested strains. SIGNIFICANCE AND IMPACT OF THE STUDY Growth conditions, growth media, pretreatment methods and different probiotic combinations should be carefully considered for quality control of existing probiotics and for identification of new probiotics for dogs. These may also have an impact on health benefits for the host.
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Affiliation(s)
- Ł Grześkowiak
- Functional Foods Forum, University of Turku, Turku, Finland.
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Abstract
OBJECTIVES In the 2011 project "Safety and efficacy of a new and emerging dental X-ray modality (SEDENTEXCT)", it was suggested that dose index (DI) and dose-area product (DAP) could be easily measured and used as diagnostic reference levels (DRLs), which would help in the management of radiation doses to patients in optimum exposure settings. Such indices could be directly related to effective dose. The purposes of this study, therefore, were to measure and calculate the DI and DAP in cone beam CT (CBCT) machines and to evaluate the correlation between the two. METHODS Dose measurements were performed on three-dimensional cone beam CT (3D-CBCT) machines [3D Accuitomo (J. Morita Mfg. Corp., Kyoto, Japan), Veraviewepocs (J. Morita Mfg. Corp.) and CS9300 (Carestream, New York, NY)] by exposing a cylindrical poly-methyl methacrylate (PMMA) phantom using a CT ionization chamber. These dose measurements were used for the calculation of Dose Indices 1 and 2, according to the methodology suggested by SEDENTEXCT. The DAP was measured using a DAP meter that was attached to the detector to cover the entire irradiated area. RESULTS The DI1 ranged from 53.6 mR to 216.6 mR, the DI2 ranged from 77.1 mR to 325.0 mR and the DAP ranged from 101.1 mGy cm(2) to 457.9 mGy cm(2), depending on the machines and exposure settings. Index 2 had a better correlation with the DAP than Index 1. CONCLUSIONS The DIs and DAP proposed by SEDENTEXCT may be useful for establishing DRLs for dental CBCT machines; however, further studies are necessary to determine which of these indices provide accurate dose estimates proportionally relating to the effective dose.
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Affiliation(s)
- K Araki
- Department of Oral Diagnostic Sciences, Showa University School of Dentistry, Ota-ku, Tokyo, Japan.
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Endo A, Katoh T, Vasudeva SB, Kobayashi I, Okano T. A preliminary study to determine the diagnostic reference level using dose-area product for limited-area cone beam CT. Dentomaxillofac Radiol 2013; 42:20120097. [PMID: 23420859 PMCID: PMC3667520 DOI: 10.1259/dmfr.20120097] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2012] [Revised: 07/27/2012] [Accepted: 08/01/2012] [Indexed: 01/17/2023] Open
Abstract
OBJECTIVES The aim of this study was to measure the dose-area product (DAP) of limited-area cone beam CT (CBCT) units used by dental offices, and to evaluate the rationale of the DAP with an aid of optically stimulated luminescence (OSL) dosemeter in measuring radiation dose. METHOD The DAPs of 21 CBCT units used in the dental offices of Tokyo and the surrounding areas from five different manufacturers were measured using OSL nanoDot dosemeter. An assembly of OSL dosemeters with an X-ray film was exposed by CBCT units at exposure parameters commonly used in each dental office. DAP values were then calculated as expressed in mGy cm(2). RESULTS DAP values ranged from 126.7 mGy cm(2) to 1476.9 mGy cm(2), depending on the units used. CONCLUSION OSL dosemeter coupled with film can be utilized for a large-scale study to measure DAP. The DAP values for individual CBCT units depend not only on the field of view, but also on the exposure parameters adapted by the dental offices.
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Affiliation(s)
- A Endo
- Department of Radiology, Showa University School of Dentistry, Tokyo, Japan
- Department of Radiological Sciences, Graduate School of Human Sciences, Tokyo Metropolitan University, Tokyo, Japan
| | - T Katoh
- Department of Radiological Sciences, Graduate School of Human Sciences, Tokyo Metropolitan University, Tokyo, Japan
| | - SB Vasudeva
- Department of Radiology, Showa University School of Dentistry, Tokyo, Japan
| | | | - T Okano
- Department of Radiology, Showa University School of Dentistry, Tokyo, Japan
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Bamba J, Araki K, Endo A, Okano T. Image quality assessment of three cone beam CT machines using the SEDENTEXCT CT phantom. Dentomaxillofac Radiol 2013; 42:20120445. [PMID: 23956235 PMCID: PMC3922264 DOI: 10.1259/dmfr.20120445] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2012] [Revised: 07/09/2013] [Accepted: 07/12/2013] [Indexed: 11/05/2022] Open
Abstract
OBJECTIVES The SEDENTEXCT Project proposed quality assurance (QA) methods and introduced a QA image quality phantom. A new prototype was recently introduced that may be improved according to previous reports. The purpose of this study is to evaluate image quality in various protocols of three cone beam CT (CBCT) machines using the proposed QA phantom. METHODS Using three CBCT machines, nine image quality parameters, including image homogeneity (noise), uniformity, geometrical distortion, pixel intensity value, contrast resolution, spatial resolution [line pair (LP) chart, point spread function (PSF) and modulation transfer function (MTF)] and metal artefacts, were evaluated using a QA phantom proposed by SEDENTEXCT. Exposure parameters, slice thickness and field of view position changed variously, and the number of total protocols was 22. RESULTS Many protocols showed a uniform gray value distribution except in the minimum slice thickness image acquired using 3D Accuitomo 80 (Morita, Kyoto, Japan) and Veraviewepocs 3Df (Morita). Noise levels differed among the protocols. There was no geometric distortion, and the pixel intensity values were correlated with the CT value. Low contrast resolution differed among the protocols, but high contrast resolution performed well in all. Many protocols showed that the maximum line pair was larger than 1 LP mm(-1) but smaller than 3 LP mm(-1). PSF and MTF did not correlate well with the pixel size. The measured metal artefact areas varied for each device. CONCLUSIONS We studied the image quality of three CBCT machines using the SEDENTEXCT phantom. Image quality varied with exposure protocols and machines.
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Affiliation(s)
- J Bamba
- Division of Radiology, Department of Oral Diagnostic Sciences, Showa University School of Dentistry, Tokyo, Japan
| | - K Araki
- Division of Radiology, Department of Oral Diagnostic Sciences, Showa University School of Dentistry, Tokyo, Japan
| | - A Endo
- Division of Radiology, Department of Oral Diagnostic Sciences, Showa University School of Dentistry, Tokyo, Japan
| | - T Okano
- Division of Radiology, Department of Oral Diagnostic Sciences, Showa University School of Dentistry, Tokyo, Japan
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Anitha P, Manikandan R, Endo A, Hashimoto T, Viswanathamurthi P. Ruthenium(II) complexes containing quinone based ligands: synthesis, characterization, catalytic applications and DNA interaction. Spectrochim Acta A Mol Biomol Spectrosc 2012; 99:174-180. [PMID: 23063861 DOI: 10.1016/j.saa.2012.09.019] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/06/2012] [Accepted: 09/09/2012] [Indexed: 06/01/2023]
Abstract
1,2-Naphthaquinone reacts with amines such as semicarbazide, isonicotinylhydrazide and thiosemicarbazide in high yield procedure with the formation of tridentate ligands HL(n) (n=1-3). By reaction of ruthenium(II) starting complexes and quinone based ligands HL(n) (n=1-3), a series of ruthenium complexes were synthesized and characterized by elemental and spectroscopic methods (FT-IR, electronic, (1)H, (13)C, (31)P NMR and ESI-MS). The ligands were coordinated to ruthenium through quinone oxygen, imine nitrogen and enolate oxygen/thiolato sulfur. On the basis of spectral studies an octahedral geometry may be assigned for all the complexes. Further, the catalytic oxidation of primary, secondary alcohol and transfer hydrogenation of ketone was carried out. The DNA cleavage efficiency of new complexes has also been tested.
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Affiliation(s)
- P Anitha
- Department of Chemistry, Periyar University, Salem 636 011, India
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Abstract
The radiation environment inside and near spacecraft consists of various components of primary radiation in space and secondary radiation produced by the interaction of the primary radiation with the walls and equipment of the spacecraft. Radiation fields inside astronauts are different from those outside them, because of the body's self-shielding as well as the nuclear fragmentation reactions occurring in the human body. Several computer codes have been developed to simulate the physical processes of the coupled transport of protons, high-charge and high-energy nuclei, and the secondary radiation produced in atomic and nuclear collision processes in matter. These computer codes have been used in various space radiation protection applications: shielding design for spacecraft and planetary habitats, simulation of instrument and detector responses, analysis of absorbed doses and quality factors in organs and tissues, and study of biological effects. This paper focuses on the methods and computer codes used for radiation transport calculations on cosmic radiation, and their application to the analysis of radiation fields inside spacecraft, evaluation of organ doses in the human body, and calculation of dose conversion coefficients using the reference phantoms defined in ICRP Publication 110.
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Affiliation(s)
- A Endo
- Nuclear Science and Engineering Directorate, Japan Atomic Energy Agency, Tokai-mura, Ibaraki 319-1195, Japan.
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