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Chen H, Wang R, Chiba T, Foreman K, Bowen K, Zhang X. Designer "Quasi-Benzyne": The Spontaneous Reduction of Ortho-Diiodotetrafluorobenzene on Water Microdroplets. J Am Chem Soc 2024; 146:10979-10983. [PMID: 38586980 DOI: 10.1021/jacs.4c02819] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/09/2024]
Abstract
It has been widely shown that water microdroplets have a plethora of unique properties that are highly distinct from those of bulk water, among which an especially intriguing one is the strong reducing power as a result of the electrons spontaneously generated at the air-water interface. In this study, we take advantage of the reducing power of water microdroplets to reduce ortho-diiodotetrafluorobenzene (o-C6F4I2) into a C6F4I2•- radical anion. Photoelectron spectroscopy and density functional theory computations reveal that the excess electron in C6F4I2•- occupies the I-C1-C2-I linkage, which elongates the C-I bonds but surprisingly shortens the C1-C2 bond, making the bond order higher than a double bond, similar to the benzyne molecule, so we named it "quasi-benzyne". The C6F4I2•- anion was further successfully utilized in a Diels-Alder reaction, a typical reaction for benzyne. This study provides a good example of strategically utilizing the spontaneous properties of water microdroplets and generating an especially exotic anion, and we anticipate that microdroplet chemistry can be an avenue rich in opportunities for new catalyst-free organic reactions.
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Affiliation(s)
- Huan Chen
- College of Chemistry, Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), Renewable Energy Conversion and Storage Centre, Tianjin Key Laboratory of Biosensing and Molecular Recognition, Frontiers Science Centre for New Organic Matter, Nankai University, Tianjin300071, China
- Haihe Laboratory of Sustainable Chemical Transformations, Tianjin300192, China
| | - Ruijing Wang
- College of Chemistry, Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), Renewable Energy Conversion and Storage Centre, Tianjin Key Laboratory of Biosensing and Molecular Recognition, Frontiers Science Centre for New Organic Matter, Nankai University, Tianjin300071, China
- Haihe Laboratory of Sustainable Chemical Transformations, Tianjin300192, China
| | - Tatsuya Chiba
- Department of Chemistry, Johns Hopkins University, Baltimore, Maryland 21218, United States
| | - Kathryn Foreman
- Department of Chemistry, Johns Hopkins University, Baltimore, Maryland 21218, United States
| | - Kit Bowen
- Department of Chemistry, Johns Hopkins University, Baltimore, Maryland 21218, United States
| | - Xinxing Zhang
- College of Chemistry, Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), Renewable Energy Conversion and Storage Centre, Tianjin Key Laboratory of Biosensing and Molecular Recognition, Frontiers Science Centre for New Organic Matter, Nankai University, Tianjin300071, China
- Haihe Laboratory of Sustainable Chemical Transformations, Tianjin300192, China
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2
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Nakano M, Kondo Y, Nakano M, Kajiyama T, Ito R, Kitagawa M, Sugawara M, Chiba T, Ryuzaki S, Yoshino Y, Kobayashi Y. Prognosis of hypertrophic cardiomyopathy in Japanese patients with an implantable cardioverter defibrillator -focus on apical hypertrophic cardiomyopathy. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.663] [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
Patients with hypertrophic cardiomyopathy (HCM) are at high risk of lethal arrhythmias, and implantable cardioverter defibrillators (ICD) are widely used for prevention of sudden cardiac death (SCD). Apical HCM is a phenotype variant of HCM, with hypertrophy predominantly affecting apex, that was initially described 30 years ago. Apical HCM patients may have different clinical prognosis compared with other subsets of HCM. In previous studies, apical HCM patients seem to have a more benign prognosis than other types of HCM. However, little is known about the long-term outcomes of apical HCM patients and there are many unclear points. Moreover, there are few reports about the clinical prognosis in apical HCM patients with an ICD.
Objective
The aim of this study is to identify the difference between the prognosis of apical and the other types of HCM patients with an ICD.
Methods
We retrospectively analyzed the database of our ICD clinic. All subjects underwent ICD implantation between October 2006 and September 2018. We classified HCM patients into LV outflow tract obstruction (LVOTO) and midventricular obstruction (MVO), apical HCM and other non-obstructive types. We divided all the patients into apical and other types of HCM, and examined their background, incidence of appropriate ICD therapies, hospitalization for heart failure, electrical storm and death.
Results
A total of consecutive 64 Japanese HCM patients with an ICD (follow-up period, 86±24 months; age, 65±14 years; male sex, 83%; left ventricular ejection fraction, 56±14%; LV max wall-thickness, 19±7mm; LV apical aneurysm, 9.4%; 5-year risk of SCD, 4.4±2.1) were enrolled in this study. We classified them into 14 apical HCM and 50 other types of HCM patients. The clinical characteristics and major clinical events of these patients are shown in the Table 1. During the follow-up periods, there were no significant differences in the incidence of electrical storm, hospitalization for heart failure and death between the 2 groups (p=0.11; p=0.60; p=0.39). Appropriate ICD therapies occurred in 6 of 14 (43%) patients with apical HCM and 5 of 50 (10%) patients with other types of HCM (p=0.010). The risk factors of patients with apical HCM patients are shown in Table 2.
Conclusions
Appropriate ICD therapy was more prevalent in patients with apical HCM, compared to patients with other types of HCM. Aggressive intervention such as catheter ablation for ventricular tachycardia and ventricular fibrillation may be considered in patients with apical HCM and higher score of 5-year risk of SCD. Further studies are needed to clarify the manifestations and long-term outcome of apical HCM patients.
Funding Acknowledgement
Type of funding sources: None.
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Affiliation(s)
- M Nakano
- Chiba University Graduate School of Medicine, Department of Cardiovascular Medicine , Chiba , Japan
| | - Y Kondo
- Chiba University Graduate School of Medicine, Department of Cardiovascular Medicine , Chiba , Japan
| | - M Nakano
- Chiba University Graduate School of Medicine, Department of Advanced Cardiorhythm Therapeutics , Chiba , Japan
| | - T Kajiyama
- Chiba University Graduate School of Medicine, Department of Advanced Cardiorhythm Therapeutics , Chiba , Japan
| | - R Ito
- Chiba University Graduate School of Medicine, Department of Cardiovascular Medicine , Chiba , Japan
| | - M Kitagawa
- Chiba University Graduate School of Medicine, Department of Cardiovascular Medicine , Chiba , Japan
| | - M Sugawara
- Chiba University Graduate School of Medicine, Department of Cardiovascular Medicine , Chiba , Japan
| | - T Chiba
- Chiba University Graduate School of Medicine, Department of Cardiovascular Medicine , Chiba , Japan
| | - S Ryuzaki
- Chiba University Graduate School of Medicine, Department of Cardiovascular Medicine , Chiba , Japan
| | - Y Yoshino
- Chiba University Graduate School of Medicine, Department of Cardiovascular Medicine , Chiba , Japan
| | - Y Kobayashi
- Chiba University Graduate School of Medicine, Department of Cardiovascular Medicine , Chiba , Japan
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3
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Sugawara M, Kondo Y, Yoshino Y, Ryuzaki S, Chiba T, Kitagawa M, Ito R, Nakano MI, Kajiyama T, Nakano MA, Kobayashi Y. Long-term clinical course and prognostic factors of heart failure with reduced ejection fraction (HFrEF) patients underwent primary prophylactic implantable cardioverter defibrillator (ICD). Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.380] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
For decades, ICD is a well-established therapy for improving prognosis of structural heart disease with severe cardiac dysfunction, and ICD for primary prophylaxis against sudden cardiac death were routinely provided. However, long-term prognosis and clinical course are different in each individual patient with an ICD, and it is moreover unclear what kind of factors might have influences on their clinical outcomes.
Purpose
The aim of this study is to clarify long-term prognosis and predictors of future major adverse cardiac events (MACEs) in HFrEF patients with an ICD as primary prophylaxis in Japanese population.
Methods
We retrospectively analyzed our ICD database. Patients underwent primary prophylactic ICD implantation from 2006 to 2020 at our institute and met the criteria of ICD recommendation of the latest Japanese guideline. Its requirements are receiving optimal medication therapy, symptomatic heart failure (New York Heart Association classification II or greater), and severe cardiac dysfunction (left ventricular ejection fraction (LVEF) is 35% or less). Additionally, prior NSVT is considered Class I ICD recommendation. In the case of ischemic cardiomyopathy (ICM), ICD implantation was done at least 40 days after myocardial infarction and at least 90 days after revascularization. MACEs were defined as composite outcome of cardiovascular death, heart failure hospitalization, and appropriate ICD therapies.
Results
A total of 148 consecutive patients were enrolled (male, 120 (81%); age, 62.1±11.8 years; LVEF, 23.0±5.86%; left ventricular end-diastolic diameter (LVDd), 67.6±9.26mm; paroxysmal or persistent atrial fibrillation (AF), 38 (26%); NSVT, 113 (76%); use of class III antiarrhythmic drugs, 48 (32%); ICM, 49 (33%); cardiac resynchronization therapy (CRT), 63 (43%)). One hundred twenty patients (81%) were programmed with a shock-only zone over 200 beats per minute. The median follow-up duration was 58.5 months. Among those 148 patients, MACEs were occurred to 60 patients (41%). As a result of dividing all patients into two groups by the occurrence of MACE, LVEF and LVDd were worse in MACE(+) group, whereas, MACE(−) had greater number of co morbidities. The results of cox-regression analysis showed LVDd (HR: 1.07, 95% CI: 1.03–1.12, p<0.001), AF (HR: 2.88, 95% CI: 1.56–5.31, p<0.001) and ICM (HR: 1.78, 95% CI: 1.00–3.16, p=0.049) were the independent predictors of MACEs (Table). However, initial ICD programming was not related to the occurrence of MACE.
Conclusions
The incidence of MACEs in patients with an ICD and severe HFrEF was substantially high in this Japanese population. Etiology of ICM, left ventricle size, and AF were the potential risk factors for future MACEs.
Funding Acknowledgement
Type of funding sources: None.
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Affiliation(s)
- M Sugawara
- Chiba University Hospital , Chiba , Japan
| | - Y Kondo
- Chiba University Hospital , Chiba , Japan
| | - Y Yoshino
- Chiba University Hospital , Chiba , Japan
| | - S Ryuzaki
- Chiba University Hospital , Chiba , Japan
| | - T Chiba
- Chiba University Hospital , Chiba , Japan
| | - M Kitagawa
- Chiba University Hospital , Chiba , Japan
| | - R Ito
- Chiba University Hospital , Chiba , Japan
| | - M I Nakano
- Chiba University Hospital , Chiba , Japan
| | - T Kajiyama
- Chiba University Hospital , Chiba , Japan
| | - M A Nakano
- Chiba University Hospital , Chiba , Japan
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Chiba T, Kajiyama T, Yutaka Y, Ryuzaki S, Sugawara M, Kitagawa M, Ito R, Nakano M, Nakano M, Kondo Y, Kobayashi Y. Association between right ventricular dysfunction and appropriate icd therapy. Europace 2022. [DOI: 10.1093/europace/euac053.460] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Funding Acknowledgements
Type of funding sources: None.
Background
Right ventricular fractional area change (RVFAC) as right ventricular function is recently referred as an independent predictor of sudden cardiac death (SCD). The purpose of this study was to evaluate the association of RVFAC and appropriate ICD therapy in order to determine the cut-off value of RVFAC.
Methods
Consecutive patients who underwent initial ICD implantation for any diseases except for non-dilated phase hypertrophic cardiomyopathy and channelopathy were retrospectively enrolled from 2012 to 2018. Primary endpoint was an initial appropriate ICD therapy. Transthoracic echocardiographic parameters before ICD implantation were evaluated by one physician and one echocardiologist to be validated. Right ventricular dimensions and function were also measured to be analyzed.
Results
In total, 172 patients (60.3±13.6 years, 131 males) including 63 ischemic cardiomyopathy were enrolled. Ninety patients received an ICD as a secondary prophylaxis. Mean LVEF and RVFAC were 38.3±14.3% and 35.8±8.82%, respectively. There was little correlation between RVFAC and LVEF (correlation coefficient =0.274). Regarding appropriate ICD therapy events, the best cut-off value of RVFAC was 34.8%. The odds ratio of low RVFAC was 2.731 (95%CI: 1.456-5.121, P=0.00174). Secondary prophylactic cohort with low RVFAC showed highest incidence of appropriate ICD therapy as shown in the figure. In multivariate analysis, only low RVFAC is an independent predictor of appropriate ICD therapy (HR: 3.53, 95%CI:1.78- 6.99, P=0.0003).
Conclusion
Low RVFAC seemed independently associated with increased appropriate ICD therapy.
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Affiliation(s)
- T Chiba
- Chiba University Graduate School of Medicine, Department of Cardiovascular Medicine, Chiba, Japan
| | - T Kajiyama
- Chiba University Graduate School of Medicine, Department of of Advanced Cardiorhythm Therapeutics, Chiba, Japan
| | - Y Yutaka
- Chiba University Graduate School of Medicine, Department of Cardiovascular Medicine, Chiba, Japan
| | - S Ryuzaki
- Chiba University Graduate School of Medicine, Department of Cardiovascular Medicine, Chiba, Japan
| | - M Sugawara
- Chiba University Graduate School of Medicine, Department of Cardiovascular Medicine, Chiba, Japan
| | - M Kitagawa
- Chiba University Graduate School of Medicine, Department of Cardiovascular Medicine, Chiba, Japan
| | - R Ito
- Chiba University Graduate School of Medicine, Department of Cardiovascular Medicine, Chiba, Japan
| | - M Nakano
- Chiba University Graduate School of Medicine, Department of Cardiovascular Medicine, Chiba, Japan
| | - M Nakano
- Chiba University Graduate School of Medicine, Department of of Advanced Cardiorhythm Therapeutics, Chiba, Japan
| | - Y Kondo
- Chiba University Graduate School of Medicine, Department of Cardiovascular Medicine, Chiba, Japan
| | - Y Kobayashi
- Chiba University Graduate School of Medicine, Department of Cardiovascular Medicine, Chiba, Japan
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5
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Sugawara M, Kondo Y, Ryuzaki S, Yoshino Y, Chiba T, Kitagawa M, Ito R, Nakano MI, Kajiyama T, Nakano MA, Kobayashi Y. Negative prognostic implications of non-sustained ventricular tachycardias in patients after prophylactic defibrillator implantation. Europace 2022. [DOI: 10.1093/europace/euac053.333] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Funding Acknowledgements
Type of funding sources: None.
Background
Non-sustained ventricular tachycardia (NSVT) is frequent phenomenon in severe heart failure with reduced ejection fraction (HFrEF) patients, and causes any negative impacts on such patients. In the Japanese Circulation Society (JCS) and Japanese Heart Rhythm Society (JHRS) guidelines, NSVT is regarded as a major component of indication for implantable cardioverter defibrillator (ICD) implantation. However, the long-term prognostic significance of NSVT in severe HFrEF is incompletely resolved.
Purpose
The aim of this study is to investigate the relation between prior NSVT episodes and major adverse cardiac events (MACEs) in HFrEF patients with an ICD as primary prophylaxis.
Methods
We retrospectively analyzed our ICD database. Patients underwent primary prophylactic ICD implantation from 2007 to 2018 following ICD recommendation of JCS and JHRS guidelines. Patients met the criteria of receiving optimal medication therapy, symptomatic heart failure (New York Heart Association classification II or greater), and severe cardiac dysfunction (left ventricular ejection fraction (LVEF) is 35% or less). In the case of ischemic cardiomyopathy (ICM), implantation of ICD was done at least 40 days after myocardial infarction and at least 90 days after revascularization. Incidence of NSVT episodes were identified through daily electrocardiogram (ECG), Holter ECG or monitor ECG in the hospital. MACEs were defined as composite outcome of cardiovascular death, heart failure hospitalization, and appropriate ICD therapies.
Results
A total of 148 consecutive patients were enrolled (male, 120 (81%); age, 62.1±11.8 years; LVEF, 23.0±5.86%; left ventricular end-diastolic diameter (LVDd), 67.6±9.26mm; paroxysmal or persistent atrial fibrillation (AF), 38 (26%); NSVT, 113 (76%); use of class III antiarrhythmic drugs, 48 (32%); ICM, 49 (33%); cardiac resynchronization therapy (CRT), 63 (43%)). The median follow-up duration was 58.5 months. As a result of comparison of the Kaplan-Meier curve between NSVT group (n=113) and non-NSVT group (n=35), cardiovascular death, heart failure hospitalization, and appropriate ICD therapy were not statistically different (Figures). Of those, MACEs were occurred to 60 patients (41%). The results of cox-regression analysis showed LVDd (HR: 1.07, 95% CI: 1.03-1.12, p<0.001), AF (HR: 2.88, 95% CI: 1.56-5.31, p<0.001) and ICM (HR: 1.78, 95% CI: 1.00-3.16, p=0.049) were the independent predictors of MACEs, however NSVT was not (Table).
Conclusions
In this Japanese population, the long-term prognosis of severe HFrEF patients is considered to be comparable regardless of prior NSVT episodes. However, the incidence of MACEs in patients with severe HFrEF after ICD implantation was substantially high. ICM, left ventricle size, and atrial fibrillation were the potential risk factors for MACEs as the previous reports showed.
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Affiliation(s)
| | - Y Kondo
- Chiba University Hospital, Chiba, Japan
| | - S Ryuzaki
- Chiba University Hospital, Chiba, Japan
| | - Y Yoshino
- Chiba University Hospital, Chiba, Japan
| | - T Chiba
- Chiba University Hospital, Chiba, Japan
| | | | - R Ito
- Chiba University Hospital, Chiba, Japan
| | - MI Nakano
- Chiba University Hospital, Chiba, Japan
| | | | - MA Nakano
- Chiba University Hospital, Chiba, Japan
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6
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Nakano M, Kondo Y, Nakano M, Kajiyama T, Ito R, Takahira H, Kitagawa M, Sugawara M, Chiba T, Kobayashi Y. Prognosis of apical hypertrophic cardiomyopathy in patients with an implantable cardioverter defibrillator. Eur Heart J 2021. [DOI: 10.1093/eurheartj/ehab724.0627] [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
Prophylactic use of implantable cardioverter-defibrillators (ICDs) to prevent sudden cardiac death (SCD) is widely spread all over the world in patients with hypertrophic cardiomyopathy (HCM). Apical HCM is a phenotype variant of HCM, with hypertrophy predominantly affecting apex, that was initially described 30 years ago. Apical HCM patients may have different clinical prognosis compared with other subsets of HCM. In previous studies, apical HCM patients seem to have a more benign prognosis than other types of HCM. However, little is known about the long-term outcomes of apical HCM and there are many unclear points. Moreover, there are few reports about the clinical prognosis in apical HCM patients with an ICD.
Objective
The aim of this study is to identify the difference between the prognosis of apical and the other HCM patients with an ICD.
Methods
We retrospectively analyzed the database of our ICD clinic. All subjects had been implanted with an ICD from October 2006 to August 2017. We classified HCM patients into LV outflow tract obstruction (LVOTO) and midventricular obstruction (MVO), apical HCM and other non-obstructive types. We divided all the patients into apical and other types of HCM, and examined their background, incidence of appropriate ICD therapies, hospitalization for heart failure, electrical storm and death.
Results
A total of consecutive 62 Japanese HCM patients with an ICD (follow-up period, 86±25 months; age, 67±14 years; male sex, 85%; left ventricular ejection fraction, 57±12%; LV max wall-thickness, 19±5mm; LV apical aneurysm, 9.7%; HCM Risk-SCD, 4.4±3.0) were enrolled in this study. We classified them into 14 apical HCM and 48 other types of HCM patients. The clinical characteristics and major events of these patients are shown in the Figure. During the follow-up periods, there were no significant differences in the incidence of hospitalization for heart failure, electrical storm and death between the 2 groups (p=0.40; p=0.22; p=0.23). Appropriate therapies occurred in 5 of 14 (36%) patients with apical HCM and 4 of 48 (8.3%) patients with other types of HCM (p=0.022).
Conclusions
Appropriate ICD therapy was more prevalent in patients with apical HCM, compared to patients with other types of HCM. However, the incidences of hospitalization for heart failure, electrical storm and death were not significantly different between two groups.
Funding Acknowledgement
Type of funding sources: None.
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Affiliation(s)
- M Nakano
- Chiba University Graduate School of Medicine, Department of Cardiovascular Medicine, Chiba, Japan
| | - Y Kondo
- Chiba University Graduate School of Medicine, Department of Cardiovascular Medicine, Chiba, Japan
| | - M Nakano
- Chiba University Graduate School of Medicine, Department of Advanced Cardiorhythm Therapeutics, Chiba, Japan
| | - T Kajiyama
- Chiba University Graduate School of Medicine, Department of Advanced Cardiorhythm Therapeutics, Chiba, Japan
| | - R Ito
- Chiba University Graduate School of Medicine, Department of Cardiovascular Medicine, Chiba, Japan
| | - H Takahira
- Chiba University Graduate School of Medicine, Department of Cardiovascular Medicine, Chiba, Japan
| | - M Kitagawa
- Chiba University Graduate School of Medicine, Department of Cardiovascular Medicine, Chiba, Japan
| | - M Sugawara
- Chiba University Graduate School of Medicine, Department of Cardiovascular Medicine, Chiba, Japan
| | - T Chiba
- Chiba University Graduate School of Medicine, Department of Cardiovascular Medicine, Chiba, Japan
| | - Y Kobayashi
- Chiba University Graduate School of Medicine, Department of Cardiovascular Medicine, Chiba, Japan
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Nakano M, Kondo Y, Nakano M, Kajiyama T, Ito R, Takahira H, Kitagawa M, Sugawara M, Chiba T, Kobatashi Y. Risk stratification for ischemic stroke and major bleeding in patients without atrial fibrillation – application of CHA2DS2-VASc and HAS-BLED scores. Eur Heart J 2021. [DOI: 10.1093/eurheartj/ehab724.2073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
Atrial fibrillation (AF) is the most common arrhythmia. AF-related stroke tends to be more severe, and the mortality rate is higher compared with stroke without AF. Recent cardiac implantable electronic devices (CIEDs) have led to an improvement in the early detection of AF episodes. Previous studies showed that AF episodes detected by CIEDs are associated with ischemic stroke. However, little is known about the relationship between new-onset AF and ischemic stroke events in Japanese patients with CIEDs who have no prior AF and take no anticoagulant therapy. ESC guidelines for the management of AF recommend the use of CHA2DS2-VASc score as class I to predict the risk of ischemic stroke in patients with AF. However, the validity of the CHA2DS2-VASc and HAS-BLED scores to predict ischemic stroke and major bleeding events in patients without AF remains unclear.
Objective
The purpose of this study was to identify the incidence of ischemic stroke and major bleeding events in CIEDs patients without AF and assess the validity of CHA2DS2-VASc and HAS-BLED scores in this population.
Methods
We retrospectively analyzed the database of our CIEDs clinic. Every 6 months, CIEDs were checked using remote monitoring system. We examined the characteristics and incidence of ischemic stroke and bleeding events. In addition, we investigated the relationship between CHA2DS2-VASc and HAS-BLED scores and the incidence of these events.
Results
We enrolled 620 consecutive patients who were followed up at our CIED clinic. We excluded patients who had a history of AF or had received anticoagulant therapies, 348 patients (follow-up period, 65±58 months; age, 70±16 years; male sex; 64%; defibrillator, 55%) were included in this study. The mean CHA2DS2-VASc and HAS-BLED scores were 2.8±1.5 points and 1.7±1.6 points, respectively. During the follow-up, 23 (6.6%) and 12 (3.4%) of 348 patients had ischemic stroke and major bleeding events, respectively. The incidence of ischemic stroke and major bleeding events stratified by the CHA2DS2-VASc and HAS-BLED scores were shown in Figure 1.
Conclusion
The risk stratification for ischemic stroke and major bleeding using the CHA2DS2-VASc and HAS-BLED scores is valid in patients without AF.
Funding Acknowledgement
Type of funding sources: None. Figure 1
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Affiliation(s)
- M Nakano
- Chiba University Graduate School of Medicine, Department of Cardiovascular Medicine, Chiba, Japan
| | - Y Kondo
- Chiba University Graduate School of Medicine, Department of Cardiovascular Medicine, Chiba, Japan
| | - M Nakano
- Chiba University Graduate School of Medicine, Department of Advanced Cardiorhythm Therapeutics, Chiba, Japan
| | - T Kajiyama
- Chiba University Graduate School of Medicine, Department of Advanced Cardiorhythm Therapeutics, Chiba, Japan
| | - R Ito
- Chiba University Graduate School of Medicine, Department of Cardiovascular Medicine, Chiba, Japan
| | - H Takahira
- Chiba University Graduate School of Medicine, Department of Cardiovascular Medicine, Chiba, Japan
| | - M Kitagawa
- Chiba University Graduate School of Medicine, Department of Cardiovascular Medicine, Chiba, Japan
| | - M Sugawara
- Chiba University Graduate School of Medicine, Department of Cardiovascular Medicine, Chiba, Japan
| | - T Chiba
- Chiba University Graduate School of Medicine, Department of Cardiovascular Medicine, Chiba, Japan
| | - Y Kobatashi
- Chiba University Graduate School of Medicine, Department of Cardiovascular Medicine, Chiba, Japan
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Ciborowski SM, Buszek R, Liu G, Blankenhorn M, Zhu Z, Marshall MA, Harris RM, Chiba T, Collins EL, Marquez S, Boatz JA, Chambreau SD, Vaghjiani GL, Bowen KH. Study of the Reaction of Hydroxylamine with Iridium Atomic and Cluster Anions ( n = 1-5). J Phys Chem A 2021; 125:5922-5932. [PMID: 34229436 DOI: 10.1021/acs.jpca.1c03935] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Elucidating the multifaceted processes of molecular activation and subsequent reactions gives a fundamental view into the development of iridium catalysts as they apply to fuels and propellants, for example, for spacecraft thrusters. Hydroxylamine, a component of the well-known hydroxylammonium nitrate (HAN) ionic liquid, is a safer alternative and mimics the chemistry and performance standards of hydrazine. The activation of hydroxylamine by anionic iridium clusters, Irn- (n = 1-5), depicts a part of the mechanism, where two hydrogen atoms are removed, likely as H2, and Irn(NOH)- clusters remain. The significant photoelectron spectral differences between these products and the bare clusters illustrate the substantial electronic changes imposed by the hydroxylamine fragment on the iridium clusters. In combination with DFT calculations, a preliminary reaction mechanism is proposed, identifying the possible intermediate steps leading to the formation of Ir(NOH)-.
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Affiliation(s)
- Sandra M Ciborowski
- Department of Chemistry, Johns Hopkins University, Baltimore, Maryland 21218, United States
| | - Robert Buszek
- Jacobs Technology, Inc., Air Force Research Laboratory, AFRL/RQRP, Edwards Air Force Base, California 93524, United States
| | - Gaoxiang Liu
- Department of Chemistry, Johns Hopkins University, Baltimore, Maryland 21218, United States
| | - Moritz Blankenhorn
- Department of Chemistry, Johns Hopkins University, Baltimore, Maryland 21218, United States
| | - Zhaoguo Zhu
- Department of Chemistry, Johns Hopkins University, Baltimore, Maryland 21218, United States
| | - Mary A Marshall
- Department of Chemistry, Johns Hopkins University, Baltimore, Maryland 21218, United States
| | | | - Tatsuya Chiba
- Department of Chemistry, Johns Hopkins University, Baltimore, Maryland 21218, United States
| | - Evan L Collins
- Department of Chemistry, Johns Hopkins University, Baltimore, Maryland 21218, United States
| | - Sara Marquez
- Department of Chemistry, Johns Hopkins University, Baltimore, Maryland 21218, United States
| | - Jerry A Boatz
- Propellants Branch, Rocket Propulsion Division, Aerospace Systems Directorate, Air Force Research Laboratory, AFRL/RQRP, Edwards Air Force Base, California 93524, United States
| | - Steven D Chambreau
- Jacobs Technology, Inc., Air Force Research Laboratory, AFRL/RQRP, Edwards Air Force Base, California 93524, United States
| | - Ghanshyam L Vaghjiani
- In-Space Propulsion Branch, Rocket Propulsion Division, Aerospace Systems Directorate, Air Force Research Laboratory, AFRL/RQRS, Edwards Air Force Base, California 93524, United States
| | - Kit H Bowen
- Department of Chemistry, Johns Hopkins University, Baltimore, Maryland 21218, United States
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9
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Yamamoto Y, Chiba T, Dohmae S, Higashi K, Nakazawa A. Osteoporosis medication after fracture in older adults: an administrative data analysis. Osteoporos Int 2021; 32:1245-1246. [PMID: 33914105 DOI: 10.1007/s00198-021-05973-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/04/2021] [Accepted: 04/19/2021] [Indexed: 12/31/2022]
Affiliation(s)
- Y Yamamoto
- Department of Obstetrics and Gynecology, Yokohama City University Graduate School of Medicine, Yokohama, Japan.
| | - T Chiba
- Medical Policy Division, Medical Care Bureau, Yokohama, Japan
| | - S Dohmae
- Medical Policy Division, Medical Care Bureau, Yokohama, Japan
| | - K Higashi
- Public Health Affairs Division, Health and Social Welfare Bureau, Yokohama, Japan
| | - A Nakazawa
- Department of Orthopedics, Yokohama Municipal Citizen's Hospital, Yokohama, Japan
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10
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Chiba T, Kajiyama T, Sugawara M, Kitagawa M, Takahira H, Ito R, Nakano M, Nakano M, Kondo Y, Kobayashi Y. Right ventricular function as a predictor of appropriate therapy of implantable cardioverter defibrillator. Europace 2021. [DOI: 10.1093/europace/euab116.427] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Funding Acknowledgements
Type of funding sources: None.
Aim
The purpose of this study was to evaluate the association of RV function and appropriate therapy of ICD.Methods: This study was a single-center retrospective cohort study. Consecutive patients who underwent ICD implantation for any diseases were enrolled except for non-dilated phase hypertrophic cardiomyopathy and channelopathy. Transthoracic echocardiographic parameters including left ventricular ejection fraction (LVEF), RV basal diameter, RV end-diastolic area, and right ventricular fractional area change (RVFAC) were evaluated. RV systolic dysfunction was defined as RVFAC <35%. Cox regression analysis was used to analyze the effects of those parameters on appropriate ICD therapy after the implantation.
Results
In total, 151 patients (60.9 ± 13.6 years, 117 males) consisting of 67 old myocardial infarction, 34 dilated cardiomyopathy, 19 cardiac sarcoidosis, and 31 others were enrolled. Eighty patients received an ICD as a secondary prophylaxis. Mean LVEF and RVFAC were 37.8 ± 13.9% and 33.2 ± 10.8%, respectively. RV systolic dysfunction was present in 86 (57.0%) patients, which was significantly associated with ICD therapy (odds ratio 2.313; 95% confidence interval 1.067-5.014; P = 0.034) according to a univariate analysis. There was no correlation between RVFAC and LVEF (correlation coefficient =0.064). Regarding the subjects LVEF > 35%, RV systolic dysfunction was an independent predictor of ICD therapy in a multivariate analysis.
Conclusion
RV systolic dysfunction was independently associated with increased ICD therapy despite of relatively preserved LVEF.
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Affiliation(s)
- T Chiba
- Chiba University Graduate School of Medicine, Department of Cardiovascular Medicine, Chiba, Japan
| | - T Kajiyama
- Chiba University Graduate School of Medicine, Department of of Advanced Cardiorhythm Therapeutics, Chiba, Japan
| | - M Sugawara
- Chiba University Graduate School of Medicine, Department of Cardiovascular Medicine, Chiba, Japan
| | - M Kitagawa
- Chiba University Graduate School of Medicine, Department of Cardiovascular Medicine, Chiba, Japan
| | - H Takahira
- Chiba University Graduate School of Medicine, Department of Cardiovascular Medicine, Chiba, Japan
| | - R Ito
- Chiba University Graduate School of Medicine, Department of Cardiovascular Medicine, Chiba, Japan
| | - M Nakano
- Chiba University Graduate School of Medicine, Department of Cardiovascular Medicine, Chiba, Japan
| | - M Nakano
- Chiba University Graduate School of Medicine, Department of of Advanced Cardiorhythm Therapeutics, Chiba, Japan
| | - Y Kondo
- Chiba University Graduate School of Medicine, Department of Cardiovascular Medicine, Chiba, Japan
| | - Y Kobayashi
- Chiba University Graduate School of Medicine, Department of Cardiovascular Medicine, Chiba, Japan
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11
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Setta K, Matsuda T, Sasaki M, Chiba T, Fujiwara S, Kobayashi M, Yoshida K, Kubo Y, Suzuki M, Yoshioka K, Ogasawara K. Diagnostic Accuracy of Screening Arterial Spin-Labeling MRI Using Hadamard Encoding for the Detection of Reduced CBF in Adult Patients with Ischemic Moyamoya Disease. AJNR Am J Neuroradiol 2021; 42:1403-1409. [PMID: 34016589 DOI: 10.3174/ajnr.a7167] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2020] [Accepted: 03/11/2021] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE Adult patients with ischemic Moyamoya disease are advised to undergo selective revascularization surgery based on cerebral hemodynamics. The purpose of this study was to determine the diagnostic accuracy of arterial spin-labeling MR imaging using Hadamard-encoded multiple postlabeling delays for the detection of reduced CBF in such patients. MATERIALS AND METHODS Thirty-seven patients underwent brain perfusion SPECT and pseudocontinuous arterial spin-labeling MR imaging using standard postlabeling delay (1525 ms) and Hadamard-encoded multiple postlabeling delays. For Hadamard-encoded multiple postlabeling delays, based on data obtained from the 7 sub-boluses with combinations of different labeling durations and postlabeling delays, CBF corrected by the arterial transit time was calculated on a voxel-by-voxel basis. Using a 3D stereotaxic template, we automatically placed ROIs in the ipsilateral cerebellar hemisphere and 5 MCA territories in the symptomatic cerebral hemisphere; then, the ratio of the MCA to cerebellar ROI was calculated. RESULTS The area under the receiver operating characteristic curve for detecting reduced SPECT-CBF ratios (<0.686) was significantly greater for the Hadamard-encoded multiple postlabeling delays-CBF ratios (0.885) than for the standard postlabeling delay-CBF ratios (0.786) (P = .001). The sensitivity and negative predictive value for the Hadamard-encoded multiple postlabeling delays-CBF ratios were 100% (95% confidence interval, 100%-100%) and significantly higher than the sensitivity (95% CI, 44%-80%) and negative predictive value (95% CI, 88%-97%) for the standard postlabeling delay-CBF ratio, respectively. CONCLUSIONS ASL MR imaging using Hadamard-encoded multiple postlabeling delays may be applicable as a screening tool because it can detect reduced CBF on brain perfusion SPECT with 100% sensitivity and a 100% negative predictive value in adult patients with ischemic Moyamoya disease.
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Affiliation(s)
- K Setta
- From the Department of Neurosurgery (K.S., T.C., S.F., M.K., K. Yoshida, Y. Kubo, K.O.), Institute for Biomedical Sciences, Iwate Medical University School of Medicine, Yahaba-cho, Japan
| | - T Matsuda
- Division of Ultrahigh Field MRI, Institute for Biomedical Sciences (T.M., M. Sasaki), Iwate Medical University School of Medicine, Yahaba-cho, Japan
| | - M Sasaki
- Department of Radiology (M. Suzuki, K. Yoshioka) Institute for Biomedical Sciences (TM, MS), Iwate Medical University School of Medicine, Yahaba-cho, Japan.,Division of Ultrahigh Field MRI, Institute for Biomedical Sciences (T.M., M. Sasaki), Iwate Medical University School of Medicine, Yahaba-cho, Japan
| | - T Chiba
- From the Department of Neurosurgery (K.S., T.C., S.F., M.K., K. Yoshida, Y. Kubo, K.O.), Institute for Biomedical Sciences, Iwate Medical University School of Medicine, Yahaba-cho, Japan
| | - S Fujiwara
- From the Department of Neurosurgery (K.S., T.C., S.F., M.K., K. Yoshida, Y. Kubo, K.O.), Institute for Biomedical Sciences, Iwate Medical University School of Medicine, Yahaba-cho, Japan
| | - M Kobayashi
- From the Department of Neurosurgery (K.S., T.C., S.F., M.K., K. Yoshida, Y. Kubo, K.O.), Institute for Biomedical Sciences, Iwate Medical University School of Medicine, Yahaba-cho, Japan
| | - K Yoshida
- From the Department of Neurosurgery (K.S., T.C., S.F., M.K., K. Yoshida, Y. Kubo, K.O.), Institute for Biomedical Sciences, Iwate Medical University School of Medicine, Yahaba-cho, Japan.,Department of Radiology (M. Suzuki, K. Yoshioka) Institute for Biomedical Sciences (TM, MS), Iwate Medical University School of Medicine, Yahaba-cho, Japan
| | - Y Kubo
- From the Department of Neurosurgery (K.S., T.C., S.F., M.K., K. Yoshida, Y. Kubo, K.O.), Institute for Biomedical Sciences, Iwate Medical University School of Medicine, Yahaba-cho, Japan
| | | | - K Yoshioka
- From the Department of Neurosurgery (K.S., T.C., S.F., M.K., K. Yoshida, Y. Kubo, K.O.), Institute for Biomedical Sciences, Iwate Medical University School of Medicine, Yahaba-cho, Japan.,Department of Radiology (M. Suzuki, K. Yoshioka) Institute for Biomedical Sciences (TM, MS), Iwate Medical University School of Medicine, Yahaba-cho, Japan
| | - K Ogasawara
- From the Department of Neurosurgery (K.S., T.C., S.F., M.K., K. Yoshida, Y. Kubo, K.O.), Institute for Biomedical Sciences, Iwate Medical University School of Medicine, Yahaba-cho, Japan
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12
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Affiliation(s)
- H. Hidai
- Yokohama Dai-ichi Hospital 6-20 Kinko-cho Kanagawa-ku, Yokohama Postal Code 221 Japan
| | - S. Takatsu
- Yokohama Dai-ichi Hospital 6-20 Kinko-cho Kanagawa-ku, Yokohama Postal Code 221 Japan
| | - T. Chiba
- Yokohama Dai-ichi Hospital 6-20 Kinko-cho Kanagawa-ku, Yokohama Postal Code 221 Japan
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13
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Hiraide T, Kataoka M, Suzuki H, Aimi Y, Chiba T, Isobe S, Katsumata Y, Goto S, Kanekura K, Satoh T, Sano M, Gamou S, Kosaki K, Fukuda K. P6009Poor outcomes in pulmonary arterial hypertension as a member of RNF213-associated vascular diseases. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz746.0729] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
A variant of c.14429G>A (p.Arg4810Lys, rs112735431) in the ring finger protein 213 gene (RNF213; NM_001256071.2) has been recently identified as a risk allele for pulmonary arterial hypertension (PAH), suggesting that PAH can be added as a new member of RNF213-associated vascular diseases including Moyamoya disease and peripheral pulmonary stenosis.
Purpose
Our aim was to identify the clinical features and outcomes of PAH patients with RNF213 p.Arg4810Lys variant.
Methods
Whole-exome sequencing was performed in 139 idiopathic (or possibly heritable) PAH patients. Hemodynamics and prognosis were evaluated in the patients with RNF213 p.Arg4810Lys variant and the patients with bone morphogenic protein receptor type 2 (BMPR2) mutations.
Results
The RNF213 p.Arg4810Lys variant was identified in a heterozygous state in 11 patients (7.9%). Time-course changes in hemodynamics after combination therapy in the patients with the RNF213 p.Arg4810Lys variant were significantly poorer compared with those in BMPR2 mutation carriers (n=36) (comparison of changes in mean pulmonary arterial pressure, P=0.007). The event-free rate of death or lung transplantation was significantly poorer in RNF213 p.Arg4810Lys variant carriers than in BMPR2 mutation carriers (5-year event-free rate since the introduction of prostaglandin I2 infusion, 0% vs. 93%, P<0.001) (Figure).
Time to death or lung transplantation
Conclusions
PAH patients with the RNF213 p.Arg4810Lys variant were associated with a poor reactivity to vasodilator drugs and poor clinical outcomes even in the recent era. Earlier consideration of lung transplantation might be required for RNF213 p.Arg4810Lys variant carriers developing PAH. Documentation of the RNF213 p.Arg4810Lys variant, as well as already known pathogenic genes, can provide clinically relevant information for therapeutic strategies, leading to a personalized approach for the treatment of PAH.
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Affiliation(s)
- T Hiraide
- Keio University School of Medicine, Cardiology, Tokyo, Japan
| | - M Kataoka
- Keio University School of Medicine, Cardiology, Tokyo, Japan
| | - H Suzuki
- Keio University School of Medicine, Center for Medical Genetics, Tokyo, Japan
| | - Y Aimi
- Kyorin University School of Medicine, Division of Cardiology, Second Department of Internal Medicine, Tokyo, Japan
| | - T Chiba
- Kyorin University School of Medicine, Department of Pathology, Tokyo, Japan
| | - S Isobe
- Keio University School of Medicine, Cardiology, Tokyo, Japan
| | - Y Katsumata
- Keio University School of Medicine, Cardiology, Tokyo, Japan
| | - S Goto
- Keio University School of Medicine, Cardiology, Tokyo, Japan
| | - K Kanekura
- Tokyo Medical University, Department of Molecular Pathology, Tokyo, Japan
| | - T Satoh
- Kyorin University School of Medicine, Division of Cardiology, Second Department of Internal Medicine, Tokyo, Japan
| | - M Sano
- Keio University School of Medicine, Cardiology, Tokyo, Japan
| | - S Gamou
- Keio University School of Medicine, Cardiology, Tokyo, Japan
| | - K Kosaki
- Keio University School of Medicine, Center for Medical Genetics, Tokyo, Japan
| | - K Fukuda
- Keio University School of Medicine, Cardiology, Tokyo, Japan
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14
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Kadoya N, Abe Y, Ito K, Yamamoto T, Chiba T, Takayama Y, Kato T, Kikuchi Y, Jingu K. Dosimetric Impact of Automated Non-Coplanar Treatment Planning Using Stereotactic Radiosurgery for Multiple Cranial Metastases: Comparison between Hyperarc and Cyberknife Dose Distributions. Int J Radiat Oncol Biol Phys 2018. [DOI: 10.1016/j.ijrobp.2018.07.1449] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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15
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Nagane M, Saito K, Shimizu S, Nozaki E, Kobayashi K, Kume S, Chiba T, Shibahara J, Shiokawa Y. P04.19 Detailed analysis of mutation change after treatment in glioblastoma. Neuro Oncol 2018. [DOI: 10.1093/neuonc/noy139.253] [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: 11/12/2022] Open
Affiliation(s)
- M Nagane
- Department of Neurosurgery, Kyorin University Faculty of Medicine, Mitaka, Tokyo, Japan
| | - K Saito
- Department of Neurosurgery, Kyorin University Faculty of Medicine, Mitaka, Tokyo, Japan
| | - S Shimizu
- Department of Neurosurgery, Kyorin University Faculty of Medicine, Mitaka, Tokyo, Japan
| | - E Nozaki
- Protein, Nucleic Acid Analysis Core Facility, Kyorin University Graduate School of Medicine, Mitaka, Tokyo, Japan
| | - K Kobayashi
- Department of Neurosurgery, Kyorin University Faculty of Medicine, Mitaka, Tokyo, Japan
| | - S Kume
- Department of Neurosurgery, Kyorin University Faculty of Medicine, Mitaka, Tokyo, Japan
| | - T Chiba
- Department of Pathology, Kyorin University Faculty of Medicine, Mitaka, Tokyo, Japan
| | - J Shibahara
- Department of Pathology, Kyorin University Faculty of Medicine, Mitaka, Tokyo, Japan
| | - Y Shiokawa
- Department of Neurosurgery, Kyorin University Faculty of Medicine, Mitaka, Tokyo, Japan
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16
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Kimura Y, Nakano M, Sakata Y, Nochioka K, Hasebe Y, Abe R, Chiba T, Fukasawa K, Oikawa T, Kasahara S, Miki K, Sato M, Shiroto T, Miyata S, Shimokawa H. 4376Clinical impacts of wide ORS morphologies on deterioration of left ventricular ejection fraction and fatal arrhythmias in patients with relatively preserved left ventricular ejection function. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy563.4376] [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)
- Y Kimura
- Tohoku University Graduate School of Medicine, Cardiovascular Medicine, Sendai, Japan
| | - M Nakano
- Tohoku University Graduate School of Medicine, Cardiovascular Medicine, Sendai, Japan
| | - Y Sakata
- Tohoku University Graduate School of Medicine, Cardiovascular Medicine, Sendai, Japan
| | - K Nochioka
- Tohoku University Graduate School of Medicine, Cardiovascular Medicine, Sendai, Japan
| | - Y Hasebe
- Tohoku University Graduate School of Medicine, Cardiovascular Medicine, Sendai, Japan
| | - R Abe
- Tohoku University Graduate School of Medicine, Cardiovascular Medicine, Sendai, Japan
| | - T Chiba
- Tohoku University Graduate School of Medicine, Cardiovascular Medicine, Sendai, Japan
| | - K Fukasawa
- Tohoku University Graduate School of Medicine, Cardiovascular Medicine, Sendai, Japan
| | - T Oikawa
- Tohoku University Graduate School of Medicine, Cardiovascular Medicine, Sendai, Japan
| | - S Kasahara
- Tohoku University Graduate School of Medicine, Cardiovascular Medicine, Sendai, Japan
| | - K Miki
- Tohoku University Graduate School of Medicine, Cardiovascular Medicine, Sendai, Japan
| | - M Sato
- Tohoku University Graduate School of Medicine, Cardiovascular Medicine, Sendai, Japan
| | - T Shiroto
- Tohoku University Graduate School of Medicine, Cardiovascular Medicine, Sendai, Japan
| | - S Miyata
- Tohoku University Graduate School of Medicine, Department of Evidence-based Cardiovascular Medicine, Sendai, Japan
| | - H Shimokawa
- Tohoku University Graduate School of Medicine, Cardiovascular Medicine, Sendai, Japan
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17
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Tominaga K, Sakata Y, Kusunoki H, Odaka T, Sakurai K, Kawamura O, Nagahara A, Takeuchi T, Fujikawa Y, Oshima T, Kato M, Furuta T, Murakami K, Chiba T, Miwa H, Kinoshita Y, Higuchi K, Kusano M, Iwakiri R, Fujimoto K, Tack JF, Arakawa T. Rikkunshito simultaneously improves dyspepsia correlated with anxiety in patients with functional dyspepsia: A randomized clinical trial (the DREAM study). Neurogastroenterol Motil 2018; 30:e13319. [PMID: 29498457 DOI: 10.1111/nmo.13319] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/11/2017] [Accepted: 01/26/2018] [Indexed: 02/05/2023]
Abstract
BACKGROUND Functional dyspepsia (FD), a heterogeneous disorder, involves multiple pathogenetic mechanisms. Developing treatments for FD has been challenging. We performed a randomized, placebo-controlled, double-blind clinical trial to determine the efficacy of rikkunshito, a Japanese herbal medicine, in FD patients. METHODS FD patients (n = 192) who met the Rome III criteria without Helicobacter pylori infection, predominant heartburn, and depression were enrolled at 56 hospitals in Japan. After 2 weeks of single-blind placebo treatment, 128 patients with continuous symptoms were randomly assigned to 8 weeks of rikkunshito (n = 64) or placebo (n = 61). The primary efficacy endpoint was global assessment of overall treatment efficacy (OTE). The secondary efficacy endpoints were improvements in upper gastrointestinal symptoms evaluated by the Patient Assessment of Upper Gastrointestinal Disorders-Symptom Severity Index (PAGI-SYM), the Global Overall Symptom scale (GOS), and the modified Frequency Scale for the Symptoms of Gastroesophageal Reflux Disease (m-FSSG), and psychological symptoms evaluated by the Hospital Anxiety and Depression Scale (HADS). KEY RESULTS Rikkunshito increased OTE compared to placebo at 8 weeks (P = .019). Rikkunshito improved upper gastrointestinal symptoms (PAGI-SYM, GOS, and m-FSSG) at 8 weeks, especially postprandial fullness/early satiety (P = .015 and P = .001) and bloating (P = .007 and P = .002) of the PAGI-SYM subscales at 4 weeks and 8 weeks. Improvement of HADS at 8 weeks (P = .027) correlated with those of PAGI-SYM (r = .302, P = .001), GOS (r = .186, P = .044), and m-FSSG (r = .462, P < .001), postprandial fullness/early satiety (r = .226, P = .014), dyspepsia (r = .215, P = .019), and PDS (r = .221, P = .016). CONCLUSION & INFERENCES Rikkunshito may be beneficial for FD patients to simultaneously treat gastrointestinal and psychological symptoms.
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Affiliation(s)
- K Tominaga
- Premier Developmental Research of Medicine, Osaka Medical College, Osaka, Japan
- Second Department of Internal Medicine, Osaka Medical College, Osaka, Japan
| | - Y Sakata
- Department of Internal Medicine, Saga Medical School, Saga, Japan
| | - H Kusunoki
- Department of General Medicine, Kawasaki Medical School, Kurashiki-city, Okayama, Japan
| | - T Odaka
- Odaka Medical and Gastrointestinal Clinic, Chiba, Japan
| | | | - O Kawamura
- Department of Endoscopy and Endoscopic Surgery, Gunma University Hospital, Maebashi, Gunma, Japan
| | - A Nagahara
- Department of Gastroenterology, Juntendo University Shizuoka Hospital, Shizuoka, Japan
| | - T Takeuchi
- Premier Developmental Research of Medicine, Osaka Medical College, Osaka, Japan
| | - Y Fujikawa
- Premier Developmental Research of Medicine, Osaka Medical College, Osaka, Japan
- Second Department of Internal Medicine, Osaka Medical College, Osaka, Japan
| | - T Oshima
- Division of Gastroenterology, Department of Internal Medicine, Hyogo College of Medicine, Hyogo, Japan
| | - M Kato
- National Hospital Organization Hakodate Hospital, Hakodate, Japan
| | - T Furuta
- Center for Clinical Research, Hamamatsu University School of Medicine, Hamamatsu, Japan
| | - K Murakami
- Department of Gastroenterology, Oita University Faculty of Medicine, Oita, Japan
| | - T Chiba
- Division of Gastroenterology, Department of Internal Medicine, Iwate Medical University, Iwate, Japan
| | - H Miwa
- Division of Gastroenterology, Department of Internal Medicine, Hyogo College of Medicine, Hyogo, Japan
| | - Y Kinoshita
- Department of Gastroenterology and Hepatology, Shimane University School of Medicine, Izumo, Japan
| | - K Higuchi
- Second Department of Internal Medicine, Osaka Medical College, Osaka, Japan
| | - M Kusano
- Department of Endoscopy and Endoscopic Surgery, Gunma University Hospital, Maebashi, Gunma, Japan
| | - R Iwakiri
- Department of Internal Medicine, Saga Medical School, Saga, Japan
| | - K Fujimoto
- Department of Internal Medicine, Saga Medical School, Saga, Japan
| | - J F Tack
- University Hospitals Leuven, Leuven, Belgium
| | - T Arakawa
- Department of Gastroenterology, Osaka City University Graduate School of Medicine, Osaka, Japan
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18
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Nakahara T, Kido-Nakahara M, Ohno F, Ulzii D, Chiba T, Tsuji G, Furue M. The pruritogenic mediator endothelin-1 shifts the dendritic cell-T-cell response toward Th17/Th1 polarization. Allergy 2018; 73:511-515. [PMID: 28960333 DOI: 10.1111/all.13322] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/21/2017] [Indexed: 01/13/2023]
Abstract
Endothelin-1 (ET-1) is associated with skin diseases such as atopic dermatitis (AD) and psoriasis. ET-1 is enhanced in the skin of patients AD and psoriasis. In addition, plasma levels of ET-1 are elevated in AD and psoriasis. Although both AD and psoriasis are T-cell-mediated skin diseases, the association between ET-1 and the T-cell immune response has not been clarified. To evaluate the role of ET-1 in inflammatory skin disease, we sought to investigate the effects of ET-1 on the functions of dendritic cells (DCs) and subsequent immune responses. For this purpose, we immunohistochemically confirmed the upregulation of ET-1 in the epidermis of patients with AD or psoriasis. ET-1 directly induced phenotypic maturation of bone marrow-derived DCs (BMDCs). In addition, ET-1 augmented the production of several cytokines and allogeneic stimulatory capacity of BMDCs. Interestingly, ET-1-activated BMDCs primed T cells to produce Th1 and Th17 cytokines, but not Th2 cytokines. These findings indicate that ET-1 polarizes the DC-T-cell response toward Th17/1 differentiation and may augment the persistent course of inflammatory skin diseases.
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Affiliation(s)
- T. Nakahara
- Division of Skin Surface Sensing; Graduate School of Medical Sciences; Kyushu University; Fukuoka Japan
- Department of Dermatology; Graduate School of Medical Sciences; Kyushu University; Fukuoka Japan
| | - M. Kido-Nakahara
- Department of Dermatology; Graduate School of Medical Sciences; Kyushu University; Fukuoka Japan
| | - F. Ohno
- Department of Dermatology; Graduate School of Medical Sciences; Kyushu University; Fukuoka Japan
| | - D. Ulzii
- Department of Dermatology; Graduate School of Medical Sciences; Kyushu University; Fukuoka Japan
| | - T. Chiba
- Department of Dermatology; Graduate School of Medical Sciences; Kyushu University; Fukuoka Japan
| | - G. Tsuji
- Department of Dermatology; Graduate School of Medical Sciences; Kyushu University; Fukuoka Japan
| | - M. Furue
- Division of Skin Surface Sensing; Graduate School of Medical Sciences; Kyushu University; Fukuoka Japan
- Department of Dermatology; Graduate School of Medical Sciences; Kyushu University; Fukuoka Japan
- Research and Clinical Center for Yusho and Dioxin; Kyushu University; Fukuoka Japan
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19
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Gamou S, Kataoka M, Aimi Y, Chiba T, Momose Y, Isobe S, Hirayama T, Yoshino H, Fukuda K, Satoh T. Genetics in pulmonary arterial hypertension in a large homogeneous Japanese population. Clin Genet 2018; 94:70-80. [DOI: 10.1111/cge.13154] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2017] [Revised: 10/04/2017] [Accepted: 10/05/2017] [Indexed: 12/13/2022]
Affiliation(s)
- S. Gamou
- Kyorin University Center for Comprehensive Regional Collaboration; Tokyo Japan
| | - M. Kataoka
- Department of Cardiology; Keio University School of Medicine; Tokyo Japan
| | - Y. Aimi
- Division of Cardiology, Second Department of Internal Medicine; Kyorin University School of Medicine; Tokyo Japan
| | - T. Chiba
- Department of Pathology; Kyorin University School of Medicine; Tokyo Japan
| | - Y. Momose
- Division of Cardiology, Second Department of Internal Medicine; Kyorin University School of Medicine; Tokyo Japan
| | - S. Isobe
- Department of Cardiology; Keio University School of Medicine; Tokyo Japan
| | - T. Hirayama
- Department of Cardiology; Keio University School of Medicine; Tokyo Japan
- Division of Cardiology, Second Department of Internal Medicine; Kyorin University School of Medicine; Tokyo Japan
| | - H. Yoshino
- Division of Cardiology, Second Department of Internal Medicine; Kyorin University School of Medicine; Tokyo Japan
| | - K. Fukuda
- Department of Cardiology; Keio University School of Medicine; Tokyo Japan
| | - T. Satoh
- Division of Cardiology, Second Department of Internal Medicine; Kyorin University School of Medicine; Tokyo Japan
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20
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Tanabe N, Go K, Sakurada Y, Imasawa M, Mabuchi F, Chiba T, Abe K, Kashiwagi K. A Remote Operating Slit Lamp Microscope System. Methods Inf Med 2018; 50:427-34. [DOI: 10.3414/me10-01-0064] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2010] [Accepted: 10/18/2010] [Indexed: 11/09/2022]
Abstract
SummaryObjectives: To develop a remote-operating slit lamp microscope system (the remote slit lamp) as the core for highly specialized ophthalmology diagnoses, and to compare the utility of this system with the conventional slit lamp microscope system (the conventional slit lamp) in making a diagnosis.Methods: The remote slit lamp system was developed. Three factors were evaluated in comparison to the conventional slit lamp. The ability to acquire skills was investigated using a task loading system among specialists and residents in ophthalmology. Participants repeated a task up to ten times and the time required for each task was analyzed. The consistency of the two systems in making a diagnosis was investigated using eyes of patients with ocular diseases as well as healthy volunteers.Results: The remote slit lamp is composed of a patient’s unit and ophthalmologist’s unit connected by high-speed internet. The two units share images acquired by the slit lamp in addition to the images and voices of patients and ophthalmologists. Both ophthalmology specialists and residents could minimize the completion times after several trials. The remote slit lamp took more time than the conventional slit lamp. Both systems showed a high consistency in evaluations among eyes with healthy eyes or those with ocular diseases.Conclusions: The remote slit lamp has a similar diagnostic ability, but required more examination time in comparison to the conventional slit lamp. The currently developed remote slit lamp has the potential to be employed for telemedicine purposes in the field of ophthalmology.
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Suzuki E, Maeda T, Chiba T, Ogasawara S, Ooka Y, Kato N. Baseline sum of longest diameter in target lesions by response evaluation criteria in solid tumor as a prognostic factor in patients with advanced hepatocellylar carcinoma receiving sorafenib treatment. Ann Oncol 2017. [DOI: 10.1093/annonc/mdx660.046] [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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Kobayashi S, Ueshima K, Moriguchi M, Takayama T, Izumi N, Yoshiji H, Hino K, Oikawa T, Chiba T, Motomura K, Kato J, Yasuchika K, Ido A, Kinoshita J, Sato T, Ikeda M, Okusaka T, Kudo M, Tamura K, Furuse J. JET-HCC: A phase 3 randomized, double-blind, placebo-controlled study of tivantinib as a second-line therapy in patients with c-Met high hepatocellular carcinoma. Ann Oncol 2017. [DOI: 10.1093/annonc/mdx369.003] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [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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Affiliation(s)
- T. Chiba
- Waseda University, Tokorozawa, Japan,
| | - Z. Wang
- Waseda University, Tokorozawa, Japan,
| | - Y. Ohata
- Waseda University, Tokorozawa, Japan,
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Akiyama Y, Iwaya T, Endo F, Shioi Y, Chiba T, Takahara T, Otsuka K, Nitta H, Koeda K, Mizuno M, Kimura Y, Sasaki A. Stability of cervical esophagogastrostomy via hand-sewn anastomosis after esophagectomy for esophageal cancer. Dis Esophagus 2017; 30:1-7. [PMID: 28375439 DOI: 10.1093/dote/dow007] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The aim of the present study is to evaluate the outcome of hand-sewn esophagogastric anastomosis during radical esophagectomy for esophageal cancer. The outcomes of 467 consecutive esophageal cancer patients who underwent cervical esophagogastric anastomosis using interrupted and double-layered sutures after radical esophagectomy via right thoracotomy or thoracoscopic surgery were retrospectively reviewed. Anastomotic leakage, including conduit necrosis, occurred in 11 of 467 patients (2.4%); 7 of 11 (63.6%) cases experienced only minor leakage, whereas the other four (36.4%) patients had major leakage that required surgical or radiologic intervention, including two patients of conduit necrosis. Anastomotic leakages were more frequently observed after retrosternal reconstruction compared with the posterior mediastinal route (P < 0.0001). The median time to healing of leakage was 40 days (range: 14-97 days). Two patients (2/467, 0.4%) died in the hospital due to sepsis caused by the leakage and conduit necrosis. Twelve patients (2.6%) developed anastomotic stenosis, which was improved by dilatation in all patients. Hand-sewn cervical esophagogastric anastomosis is a stable and highly safe method of radical esophagectomy for esophageal cancer.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | - Y Kimura
- Department of Palliative Medicine, Iwate Medical University School of Medicine, Iwate, Japan
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Kashiwagi K, Kogure S, Mabuchi F, Chiba T, Yamamoto T, Kuwayama Y, Araie M. Change in visual acuity and associated risk factors after trabeculectomy with adjunctive mitomycin C. Acta Ophthalmol 2016; 94:e561-e570. [PMID: 27156361 DOI: 10.1111/aos.13058] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2015] [Accepted: 02/15/2016] [Indexed: 11/30/2022]
Abstract
PURPOSE To report the 5-year incidence of visual impairment after mitomycin C-augmented trabeculectomy (MMC trabeculectomy) and the risk factors for visual impairment. METHODS This is a multicentre prospective observational cohort study. Among glaucoma patients registered in the Collaborative Bleb-related Infection Incidence and Treatment Study performed in Japan, the patients with eyes meeting the following qualifications were included: eyes with primary open-angle glaucoma; eyes with primary angle-closure glaucoma; eyes with exfoliative glaucoma; eyes with ≥3/60 in blindness analysis; and eyes with ≥20/60 in low-vision analysis and visual acuity loss analysis. The patients were followed at 6-month intervals for 5 years. The entry data and follow-up data were analysed to determine the incidence of blindness (<3/60), low vision (≥3/60 and <20/60) and visual acuity loss (≥0.2 logMAR) during the follow-up period. Risk factors for visual impairment were also analysed. RESULTS A total of 694 eyes of 694 or 559 eyes of 559 glaucoma patients were subjected to the blindness analysis or the low-vision and visual acuity loss analysis, respectively. Visual acuity significantly deteriorated (p < 0.0001): 12.2% (95%CI: 9.8-14.7%) of the patients became blind; 12.1% (95%CI: 9.4-14.9%) were judged to have low vision at the final examination; 28.3% (95%CI: 24.5-32.0%) were judged to have visual acuity loss. Glaucoma subtypes, poor preoperative visual function and postoperative complications are the main risk factors for visual impairment. CONCLUSIONS Visual acuity was significantly reduced after MMC trabeculectomy in 5 years, and we identified several risk factors associated with this complication.
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Affiliation(s)
- Kenji Kashiwagi
- Department of Ophthalmology; University of Yamanashi; Faculty of Medicine; Chuo Yamanashi Japan
| | - Satoshi Kogure
- Department of Ophthalmology; University of Yamanashi; Faculty of Medicine; Chuo Yamanashi Japan
| | - Fumihiko Mabuchi
- Department of Ophthalmology; University of Yamanashi; Faculty of Medicine; Chuo Yamanashi Japan
| | - Tatsuya Chiba
- Department of Ophthalmology; University of Yamanashi; Faculty of Medicine; Chuo Yamanashi Japan
| | - Tetsuya Yamamoto
- Department of Ophthalmology; Gifu University Graduate School of Medicine; Gifu Japan
| | | | - Makoto Araie
- Department of Ophthalmology; University of Tokyo Graduate School of Medicine; Tokyo Japan
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Fu L, Matsuyama I, Chiba T, Xing Y, Korenaga T, Guo Z, Fu X, Nakayama J, Mori M, Higuchi K. Extrahepatic Expression of Apolipoprotein A-II in Mouse Tissues: Possible Contribution to Mouse Senile Amyloidosis. J Histochem Cytochem 2016; 49:739-48. [PMID: 11373320 DOI: 10.1177/002215540104900607] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Apolipoprotein A-II (apoA-II), an apolipoprotein in serum high-density lipoprotein, is a precursor of mouse senile amyloid fibrils. The liver has been considered to be the primary site of synthesis. However, we performed nonradioactive in situ hybridization analysis in tissue sections from young and old amyloidogenic (R1.P1- Apoa2 c ) and amyloid-resistant (SAMR1) mice and revealed that other tissues in addition to the liver synthesize apoA-II. We found a strong hybridization signal in the basal cells of the squamous epithelium and the chief cells of the fundic gland in the stomach, the crypt cells and a small portion of the absorptive epithelial cells in the small intestine, the basal cells of the tongue mucosa, and the basal cells of the epidermis and hair follicles in the skin in both mouse strains. Expression of apoA-II mRNA in those tissues was also examined by RT-PCR analysis. Immunolocalization of apoA-II protein also indicated the cellular localization of apoA-II. ApoA-II transcription was not observed in the heart. Amyloid deposition was observed around the cells expressing apoA-II mRNA in the old R1.P1- Apoa2 c mice. These results demonstrate that the apoA-II mRNA is transcribed and translated in various extrahepatic tissues and suggest a possible contribution of apoA-II synthesized in these tissues to amyloid deposition.
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Affiliation(s)
- L Fu
- Department of Aging Angiology, Shinshu University School of Medicine, Matsumoto, Japan
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Shigeta S, Mori S, Baba M, Hosoya M, Mochizuki N, Chiba T, De Clercq E. Inhibitory Effect of Pyridobenzoazoles on Orthomyxo-and Paramyxovirus Replication in vitro. ACTA ACUST UNITED AC 2016. [DOI: 10.1177/095632029200300307] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Among thirteen newly synthesized pyridobenzoazole derivatives which have been examined for anti-myxovirus and antiherpesvirus activities, three benzimidazoles emerged as potent anti-orthomyxo- or paramyxovirus compounds. 4-Cyano-2-benzamide-1-oxo-1,5-dihydropyrido[1,2a]benzimidazole (CBO-PB) showed broad antiviral activities against paramyxo-and orthomyxoviruses with EC50 of 0.1–2.0 μg ml−1, and 2-cyano-1-amino derivatives of CBO-PB (CCI-PB) were inhibitory to paramyxoviruses at 1.4–8.5 (μg ml−1 by a plaque reduction method. The third compound, 2-ethoxycarbonyl derivatives of CCI-PB was inhibitory only to respiratory syncytial virus (RSV) at 15–28 μg ml−1. Selectivity indexes of these 3 compounds for RSV in HeLa cells were 60, 86, and >13, respectively. All three compounds inhibited syncytium formation of RSV and Parainfluenzavirus (PFLUV) type 3 at comparable concentrations with EC50 for plaque formation. They inhibited antigen production of RSV and PFLUV at the concentrations that were 4 to 20-fold higher than those needed for plaque reduction, but they did not inhibit adsorption of virus to cells at all. All three compounds inhibited the growth of RSV in HeLa cells at 4-fold higher concentrations than their EC50 for plaque reduction.
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Affiliation(s)
- S. Shigeta
- Department of Microbiology, Fukushima Medical College, Fukushima 960-12, Japan
| | - S. Mori
- Department of Microbiology, Fukushima Medical College, Fukushima 960-12, Japan
| | - M. Baba
- Department of Microbiology, Fukushima Medical College, Fukushima 960-12, Japan
| | - M. Hosoya
- Department of Microbiology, Fukushima Medical College, Fukushima 960-12, Japan
| | - N. Mochizuki
- Department of Microbiology, Fukushima Medical College, Fukushima 960-12, Japan
| | - T. Chiba
- Pharmaceutical Institute, Tohoku University, Sendai 980, Japan
| | - E. De Clercq
- Rega Institute for Medical Research, Katholieke Universiteit Leuven, B-3000 Leuven, Belgium
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Terao C, Ota M, Shiokawa M, Kuriyama K, Kodama Y, Uchida K, Yamaguchi I, Kawaguchi T, Kawaguchi S, Higasa K, Mimori T, Okazaki K, Chiba T, Kawa S, Matsuda F. OP0238 Fcgr2b and Multiple Hla Loci Are Associated with Susceptibility To IGG4-Related Disease. Ann Rheum Dis 2016. [DOI: 10.1136/annrheumdis-2016-eular.3046] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Chiba T, Kashiwagi K, Ishijima K, Furuichi M, Kogure S, Abe K, Chiba N, Tsukahara S. A Prospective Study of Iridial Pigmentation and Eyelash Changes Due to Ophthalmic Treatment with Latanoprost. Jpn J Ophthalmol 2016; 48:141-7. [PMID: 15060793 DOI: 10.1007/s10384-003-0039-6] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2003] [Accepted: 08/15/2003] [Indexed: 11/26/2022]
Abstract
PURPOSE To conduct a 12-month prospective study on the occurrence of latanoprost-induced iridial pigmentation and eyelash change in Japanese patients with glaucoma METHODS Seventy-five patients (75 eyes) were enrolled in the study. Photographs of the iris and eyelashes were taken under identical conditions before and after treatment. Three glaucoma specialists assessed the iridial pigmentation/eyelash change independently with no knowledge of patient data. The effects of age, sex, concomitant medication, and type of glaucoma on iridial pigmentation/eyelash change were investigated, and intraocular pressure (IOP) reduction and iridocorneal angle pigmentation before and after latanoprost treatment were compared between patients with iridial pigmentation/eyelash change and patients without these changes. RESULTS The incidence of iridial pigmentation was 6.3% at 1 month, 15.7% at 3 months, 37.8% at 6 months, and 56.5% at 12 months. The incidence of eyelash change was 0% at 1 month, 33.8% at 3 months, 44.4% at 6 months, and 46.2% at 12 months. Latanoprost did not affect IOP reduction or iridocorneal angle pigmentation. No significant relationship between iridial pigmentation and eyelash change was observed. None of the investigated parameters except age affected the iridial pigmentation/eyelash change. CONCLUSION Iridial pigmentation and eyelash change occurred at a high frequency in long-term treatment with latanoprost in Japanese glaucoma patients.
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Affiliation(s)
- Tatsuya Chiba
- Department of Ophthalmology, University of Yamanashi, Faculty of Medicine, Yamanashi, Tamaho, Japan
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Chiba T, Soeno Y, Shirako Y, Sudo H, Yagishita H, Taya Y, Kawashiri S, Okada Y, Imai K. MALT1 Inhibition of Oral Carcinoma Cell Invasion and ERK/MAPK Activation. J Dent Res 2015; 95:446-52. [DOI: 10.1177/0022034515621740] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
The expression of mucosa-associated lymphoid tissue 1 (MALT1) that activates nuclear factor (NF)–κB in lymphocyte lineages is rapidly inactivated in oral carcinoma cells at the invasive front and the patients with worst prognosis. However, its mechanism to accelerate carcinoma progression remains unknown, and this study was carried out to examine the role in invasion. HSC2 oral carcinoma cells stably expressing wild-type MALT1 (wtMALT1) reduced the invasion of basement membrane matrices and collagen gels, and the dominant-negative form (∆MALT1)–expressing cells aggressively invaded into collagen gels. MALT1 decelerated proliferation and migration of cells and downregulated expression of matrix metalloproteinase 2 and 9, which were confirmed by short interfering RNA transfections. Reporter assays and immunoblot analysis showed that MALT1 does not affect the NF-κB pathway but inhibits ERK/MAPK activation. This was confirmed by endogenous MALT1 expression in oral carcinoma cell lines. Orthotopic implantation of ∆MALT1-expressing HSC2 cells in mice grew rapid expansive and invasive tongue tumors in contrast to an absence of tumor formation by wtMALT1-expressing cells. These results demonstrate that MALT1 suppresses oral carcinoma invasion by inhibiting proliferation, migration, and extracellular matrix degradation and that the ERK/MAPK pathway is a target of MALT1 and further suggests a role as a suppressor of carcinoma progression.
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Affiliation(s)
- T. Chiba
- Department of Biochemistry, School of Life Dentistry at Tokyo, The Nippon Dental University, Tokyo, Japan
| | - Y. Soeno
- Department of Pathology, School of Life Dentistry at Tokyo, The Nippon Dental University, Tokyo, Japan
| | - Y. Shirako
- Department of Pathology, School of Life Dentistry at Tokyo, The Nippon Dental University, Tokyo, Japan
| | - H. Sudo
- Department of Biochemistry, School of Life Dentistry at Tokyo, The Nippon Dental University, Tokyo, Japan
| | - H. Yagishita
- Division of Oral Diagnosis, Dental and Maxillofacial Radiology and Oral Pathology Diagnostic Services, Nippon Dental University Hospital, Tokyo, Japan
| | - Y. Taya
- Department of Pathology, School of Life Dentistry at Tokyo, The Nippon Dental University, Tokyo, Japan
| | - S. Kawashiri
- Department of Oral Surgery, School of Medicine, Kanazawa University, Kanazawa, Japan
| | - Y. Okada
- Department of Pathology, School of Medicine, Keio University, Tokyo, Japan
| | - K. Imai
- Department of Biochemistry, School of Life Dentistry at Tokyo, The Nippon Dental University, Tokyo, Japan
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Tsukita K, Chiba T, Rikimaru H, Kurihara N, Tano O, Miura E, Ando D, Suzuki Y. Usefulness of neck mra source images for rapid screening for spontaneous cervical epidural hematoma: a case report and literature review. J Neurol Sci 2015. [DOI: 10.1016/j.jns.2015.08.1170] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Matsuo H, Tomiyama H, Satake W, Chiba T, Onoue H, Kawamura Y, Nakayama A, Sakiyama M, Funayama M, Nishioka K, Shimizu T, Kaida K, Kamakura K, Toda T, Hattori N, Shinomiya N. Onset age of Parkinson’s disease is delayed by a common dysfunctional variant of ABCG2, a major causative gene for early-onset gout. J Neurol Sci 2015. [DOI: 10.1016/j.jns.2015.08.977] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Chiba T, Yoneyama S, Nakagomi T, Takahashi H, Iijima H. [A Case of Metastatic Endophthalmitis Resulting from Liver Abscess Complicated with Pyogenic Ventriculitis via Optic Nerve]. Nippon Ganka Gakkai Zasshi 2015; 119:686-692. [PMID: 26571629] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
BACKGROUND Intracranial extension of infection via the optic nerve is a rare but serious complication of bacterial endophthalmitis. CASE A 79-year-old women was hospitalized complaining of right eyelid swelling, severe hyperemia and purulent conjunctival discharge in the right eye. Although the fundus was invisible due to cataract, right endophthalmitis of unknown origin was suggested by pus in the anterior chamber and brain computed tomography (CT) findings showing nasal scleral rupture and orbital cellulitis. Systemic examination revealed pyogenic liver abscess and percutaneous drainage of abscess disclosed Klebsiella pneumoniae, which was also isolated from conjunctival discharge. Because diffusion-weighted magnetic resonance imaging (MRI) findings demonstrated right optic neuritis and ventriculitis, enucleation of her right eye was performed based on the diagnosis of pyogenic ventriculitis via the optic nerve. Klebsiella pneumoniae was detected in both stumps of the transected right optic nerve. Despite intensive anti-bacterial treatment, she died of acute respiratory distress syndrome 46 days after hospitalization. CONCLUSION Severe bacterial endophthalmitis may cause intracranial infection via the optic nerve.
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Khosroshahi A, Wallace ZS, Crowe JL, Akamizu T, Azumi A, Carruthers MN, Chari ST, Della-Torre E, Frulloni L, Goto H, Hart PA, Kamisawa T, Kawa S, Kawano M, Kim MH, Kodama Y, Kubota K, Lerch MM, Löhr M, Masaki Y, Matsui S, Mimori T, Nakamura S, Nakazawa T, Ohara H, Okazaki K, Ryu JH, Saeki T, Schleinitz N, Shimatsu A, Shimosegawa T, Takahashi H, Takahira M, Tanaka A, Topazian M, Umehara H, Webster GJ, Witzig TE, Yamamoto M, Zhang W, Chiba T, Stone JH. International Consensus Guidance Statement on the Management and Treatment of IgG4-Related Disease. Arthritis Rheumatol 2015; 67:1688-99. [PMID: 25809420 DOI: 10.1002/art.39132] [Citation(s) in RCA: 589] [Impact Index Per Article: 65.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2014] [Accepted: 03/19/2015] [Indexed: 02/06/2023]
Affiliation(s)
- A Khosroshahi
- Emory University School of Medicine, Atlanta, Georgia
| | | | - J L Crowe
- University of Tennessee College of Medicine, Chattanooga
| | - T Akamizu
- Wakayama Medical University, Tokyo, Japan
| | - A Azumi
- Kobe Kaisei Hospital, Kobe, Japan
| | - M N Carruthers
- University of British Columbia, Vancouver, British Columbia, Canada
| | | | | | | | - H Goto
- Tokyo Medical University, Tokyo, Japan
| | - P A Hart
- The Ohio State University Medical College and The Ohio State University Wexner Medical Center, Columbus
| | - T Kamisawa
- Tokyo Metropolitan Komagome Hospital, Tokyo, Japan
| | - S Kawa
- Shinshu University, Matsumoto, Japan
| | - M Kawano
- Kanazawa University Graduate School of Medical Sciences and Kanazawa University Hospital, Kanazawa, Japan
| | - M H Kim
- University of Ulsan College of Medicine and Asan Medical Center, Ulsan, Republic of Korea
| | - Y Kodama
- Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - K Kubota
- Yokohama City University and Yokohama City University Hospital, Yokohama, Japan
| | - M M Lerch
- University of Greifswald Medical School, Greifswald, Germany
| | - M Löhr
- Karolinska Institutet, Stockholm, Sweden
| | - Y Masaki
- Kanazawa Medical University, Kanazawa, Japan
| | - S Matsui
- University of Toyama, Toyama, Japan
| | - T Mimori
- Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - S Nakamura
- Kyushu University and Kyushu University Dental Hospital, Fukuoka, Japan
| | - T Nakazawa
- Nagoya City University Graduate School of Medicine, Nagoya, Japan
| | - H Ohara
- Nagoya City University Graduate School of Medicine, Nagoya, Japan
| | - K Okazaki
- Kansai Medical University, Hirakata, Japan
| | - J H Ryu
- Mayo Clinic, Rochester, Minnesota
| | - T Saeki
- Nagaoka Red Cross Hospital, Nagaoka, Japan
| | - N Schleinitz
- Aix-Marseille Université, Assistance Publique Hôpitaux de Marseille, Marseille, France
| | - A Shimatsu
- National Hospital Organization Kyoto Medical Center, Kyoto, Japan
| | | | - H Takahashi
- Sapporo Medical University School of Medicine, Sapporo, Japan
| | - M Takahira
- Kanazawa University Graduate School of Medical Sciences and Kanazawa University Hospital, Kanazawa, Japan
| | - A Tanaka
- Teikyo University School of Medicine, Tokyo, Japan
| | | | - H Umehara
- Kanazawa Medical University, Kanazawa, Japan
| | - G J Webster
- University College London and University College London Hospitals, London, UK
| | | | - M Yamamoto
- Sapporo Medical University School of Medicine, Sapporo, Japan
| | - W Zhang
- Chinese Academy of Medical Sciences and Peking Union Medical College Hospital, Beijing, China
| | - T Chiba
- Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - J H Stone
- Massachusetts General Hospital, Boston
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- Japanese Ministry of Health, Labor, and Welfare, Amgen, and Genetech
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Ashida K, Sakurai Y, Nishimura A, Kudou K, Hiramatsu N, Umegaki E, Iwakiri K, Chiba T. Randomised clinical trial: a dose-ranging study of vonoprazan, a novel potassium-competitive acid blocker, vs. lansoprazole for the treatment of erosive oesophagitis. Aliment Pharmacol Ther 2015; 42. [PMID: 26201312 PMCID: PMC5014135 DOI: 10.1111/apt.13331] [Citation(s) in RCA: 81] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
BACKGROUND The potassium-competitive acid blocker vonoprazan (VPZ) has potent acid-inhibitory effects and may offer clinical advantages over conventional therapy for acid-related disorders. AIM To investigate the efficacy and safety of VPZ in patients with erosive oesophagitis (EO). METHODS In this multicentre, randomised, double-blind, parallel-group, dose-ranging study, patients ≥20 years with endoscopically confirmed EO [Los Angeles (LA) grades A-D] received VPZ 5, 10, 20 or 40 mg, or lansoprazole (LPZ) 30 mg once daily for 8 weeks. The primary endpoint was the proportion of healed EO subjects as shown by endoscopy at week 4. RESULTS A total of 732 subjects received VPZ or LPZ. The proportion of healed EO subjects at week 4 was 92.3%, 92.5%, 94.4%, 97.0% and 93.2%, respectively, with VPZ 5, 10, 20 and 40 mg and LPZ 30 mg. All VPZ doses were non-inferior to LPZ when adjusted for baseline LA grades A/B and C/D. Among those with LA grades C/D, the proportions of healed EO subjects were 87.3%, 86.4%, 100%, 96.0% and 87.0%, respectively, with VPZ 5, 10, 20 and 40 mg and LPZ 30 mg. The incidence of adverse events was similar across the groups. CONCLUSIONS Vonoprazan was effective and non-inferior to LPZ in healing EO. VPZ 20 mg or higher was highly efficacious for severe EO (LA grades C/D). VPZ was associated with no safety concern during this 8-week study, while there was a dose-dependent increase in serum gastrin. Once-daily VPZ 20 mg is the recommended clinical dose for treating EO.
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Affiliation(s)
| | - Y. Sakurai
- Takeda Pharmaceutical Company Ltd.OsakaJapan
| | | | - K. Kudou
- Takeda Pharmaceutical Company Ltd.OsakaJapan
| | - N. Hiramatsu
- Osaka University Graduate School of MedicineOsakaJapan
| | - E. Umegaki
- Kobe University Graduate School of MedicineKobeJapan
| | - K. Iwakiri
- Nippon Medical School Graduate School of MedicineTokyoJapan
| | - T. Chiba
- Graduate School of Medicine and Faculty of MedicineKyoto UniversityKyotoJapan
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Morimoto M, Saito C, Muto C, Akamatsu Y, Chiba T, Abe T, Azuma N, Suto Y. Impairment of host resistance to helminthes with age in murine small intestine. Parasite Immunol 2015; 37:171-9. [PMID: 25545318 DOI: 10.1111/pim.12170] [Citation(s) in RCA: 6] [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: 06/13/2014] [Accepted: 12/19/2014] [Indexed: 11/30/2022]
Abstract
Age-associated alterations of Th2 immune responses against nematode parasites are largely unknown. We investigated primary and memory responses against two types of gastrointestinal nematode parasites, Heligmosomoides polygyrus (Hp) and Nippostrongylus brasiliensis (Nb), in aged mice. The small intestinal gene expression of Th2 cytokines was almost unchanged after primary (Nb and Hp) and secondary infection (Hp) in aged mice in contrast to strongly increased small intestinal gene expression of Th2 cytokines in young (3-month-old) mice. Mucus production decreased (Nb), and worm expulsion was impaired (Nb and Hp) compared with the young mice. Immunofluorescent staining revealed that after Hp infection, the number of alternatively activated macrophages, which are induced by Th2 cytokines, was lower in the aged mice. On the other hand, the number of CD4(+) T cells recruited to the worm cysts was normal compared with the young mice. These results suggest that migration of CD4(+) T cells to the host-parasite interface is not affected by ageing. Alterations in Th2 immune responses in aged mice might be due to inappropriate or insufficient activation of CD4(+) T cells in the submucosa.
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Affiliation(s)
- M Morimoto
- School of Food, Agricultural and Environmental Sciences, Miyagi University, Sendai City, Miyagi, Japan
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Ichida K, Matsuo H, Nakayama A, Sakiyama M, Chiba T, Shimizu S, Nakashima H, Nakamura T, Takada Y, Takada T, Nakaoka H, Wakai K, Sakurai Y, Shimizu T, Suzuki H, Shinomiya N. SAT0324 ABCG2 Dysfunction Leads to Renal Urate Underexcretion Type Hyperuricemia in Addition to Extra-Renal Urate Underexcretion Type Hyperuricemia. Ann Rheum Dis 2015. [DOI: 10.1136/annrheumdis-2015-eular.5432] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Chiba T, Yamanaka M, Saito H, Kobayashi T, Hori K, Yuri M, Tamura K, Sabashi K, Tohyama H. Do kinematic behaviors of the pelvis and trunk during single-leg standing reflect the peak knee adduction moment of during walking? Physiotherapy 2015. [DOI: 10.1016/j.physio.2015.03.417] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Saito H, Kasahara S, Yamanaka M, Chiba T. Changes in postural control during a repetitive reaching task. Physiotherapy 2015. [DOI: 10.1016/j.physio.2015.03.1239] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Yang L, Wang J, Ando T, Kubota A, Yamashita H, Sakuma I, Chiba T, Kobayashi E. Vision-based endoscope tracking for 3D ultrasound image-guided surgical navigation. Comput Med Imaging Graph 2014; 40:205-16. [PMID: 25263644 DOI: 10.1016/j.compmedimag.2014.09.003] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [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: 03/07/2014] [Revised: 07/03/2014] [Accepted: 09/03/2014] [Indexed: 11/24/2022]
Abstract
This work introduces a self-contained framework for endoscopic camera tracking by combining 3D ultrasonography with endoscopy. The approach can be readily incorporated into surgical workflows without installing external tracking devices. By fusing the ultrasound-constructed scene geometry with endoscopic vision, this integrated approach addresses issues related to initialization, scale ambiguity, and interest point inadequacy that may be faced by conventional vision-based approaches when applied to fetoscopic procedures. Vision-based pose estimations were demonstrated by phantom and ex vivo monkey placenta imaging. The potential contribution of this method may extend beyond fetoscopic procedures to include general augmented reality applications in minimally invasive procedures.
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Affiliation(s)
- L Yang
- Graduate School of Engineering, The University of Tokyo, Tokyo, Japan.
| | - J Wang
- Graduate School of Engineering, The University of Tokyo, Tokyo, Japan
| | - T Ando
- Graduate School of Engineering, The University of Tokyo, Tokyo, Japan
| | - A Kubota
- Graduate School of Engineering, The University of Tokyo, Tokyo, Japan
| | - H Yamashita
- Clinical Research Center, National Center for Child Health and Development, Tokyo, Japan
| | - I Sakuma
- Graduate School of Engineering, The University of Tokyo, Tokyo, Japan
| | - T Chiba
- Clinical Research Center, National Center for Child Health and Development, Tokyo, Japan
| | - E Kobayashi
- Graduate School of Engineering, The University of Tokyo, Tokyo, Japan
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Chiba T, Hayashi F, Shinmura M, Kiyomatsu M, Tatematsu S, Nakao M, Furue M. Yellow urticaria in a patient with hepatic cirrhosis. GIORN ITAL DERMAT V 2014; 149:381-382. [PMID: 24819772] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Affiliation(s)
- T Chiba
- Department of Dermatology, Iizuka Hospital, Fukuoka, Japan -
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Wheeler DC, Abdalla S, Chertow G, Parfrey P, Herzog C, Mikolasevic I, Racki S, Lukenda V, Milic S, Devcic B, Orlic L, Suttorp MM, Hoekstra T, Ocak G, Van Diepen ATN, Ott I, Mittelman M, Rabelink TJ, Krediet RT, Dekker FW, Simone S, Dell'Oglio MPS, Ciccone M, Corciulo R, Castellano G, Balestra C, Grandaliano G, Gesualdo L, Pertosa G, Nishida M, Ando M, Karasawa K, Iwamoto Y, Tsuchiya K, Nitta K, Krzanowski M, Janda K, Gajda M, Dumnicka P, Fedak D, Lis G, Ja kowski P, Litwin JA, Su owicz W, Freitas GR, Silva VB, Abensur H, Luders C, Pereira BJ, Castro MC, Oliverira RB, Moyses RM, Elias RM, Silva BC, Tekce H, Ozturk S, Aktas G, Kin Tekce B, Erdem A, Ozyasar M, Taslamacioglu Duman T, Yazici M, Kirkpantur A, Balci MM, Turkvatan A, Afsar B, Alkis M, Mandiroglu F, Voroneanu L, Siriopol D, Nistor I, Apetrii M, Hogas S, Onofriescu M, Covic A, An WS, Kim SE, Son YK, Oh YJ, Gelev S, Toshev S, Trajceska L, Selim G, Dzekova P, Shikole A, Park J, Lee JS, Shin ES, Ann SH, Kim SJ, Chung HC, Janda K, Krzanowski M, Gajda M, Dumnicka P, Fedak D, Lis G, Litwin JA, Sulowicz W, Elewa U, Bichari W, Abo-Seif K, Seferi S, Rroji M, Likaj E, Spahia N, Barbullushi M, Thereska N, Kopecky CM, Genser B, Maerz W, Wanner C, Saemann MD, Weichhart T, Sezer S, Gurlek Demirci B, Tutal E, Bal Z, Erkmen Uyar M, Ozdemir Acar FN, Macunluoglu B, Atakan A, Ari Bakir E, Georgianos P, Sarafidis PA, Stamatiadis DN, Liakopoulos V, Zebekakis PE, Papagianni A, Lasaridis AN, Eftimovska - Otovic N, Babalj-Banskolieva E, Kostadinska-Bogdanoska S, Grozdanovski R, Aono M, Sato Y, El Amrani M, Asserraji M, Benyahia M, Lee YK, Choi SR, Cho A, Kim JK, Choi MJ, Kim SJ, Yoon JW, Koo JR, Kim HJ, Noh JW, Inagaki H, Yokota N, Sato Y, Chiyotanda S, Fukami K, Fujimoto S, Kendi Celebi Z, Kutlay S, Sengul S, Nergizoglu G, Erturk S, Ates K, Vishnevskii KA, Rumyantsev AS, Zemchenkov AY, Smirnov AV, Reinhardt B, Knaup R, Esteve Simo V, Carneiro Oliveira J, Moreno Guzman F, Fulquet Nicolas M, Pou Potau M, Saurina Sole A, Duarte Gallego V, Ramirez De Arellano Serna M, Turkmen K, Demirtas L, Akbas EM, Bakirci EM, Buyuklu M, Timuroglu A, Georgianos PI, Sarafidis PA, Karpetas A, Liakopoulos V, Stamatiadis DN, Papagianni A, Lasaridis AN, Taira T, Nohtomi K, Takemura T, Chiba T, Hirano T, Chang CT, Huang CC, Chen CJ, El Amrani M, Mohamed A, Benyahia M, Kanai H, Tamura Y, Kaizu Y, Kali A, Yayar O, Erdogan B, Eser B, Ercan Z, Buyukbakkal M, Merhametsiz O, Haspulat A, Yildirim T, Bozkurt B, Ayli MD, Bal Z, Erkmen Uyar M, Gokustun D, Gurlek Demirci B, Tutal E, Sezer S, Markaki A, Grammatikopoulou M, Fragkiadakis G, Stylianou K, Venyhaki M, Chatzi V, Selim G, Stojceva-Taneva O, Tozija L, Dzekova-Vidimliski P, Trajceska L, Gelev S, Petronievic Z, Sikole A, Moyseyenko V, Nykula T, Fernandes RT, Barreto DV, Rodrigues GGC, Misael A, Branco-Martins CT, Barreto FC, Yayar O, Ercan Z, Eser B, Merhametsiz O, Haspulat A, Buyukbakkal M, Erdogan B, Yildirim T, Bozkurt B, Ayli MD. DIALYSIS CARDIOVASCULAR COMPLICATIONS 1. Nephrol Dial Transplant 2014. [DOI: 10.1093/ndt/gfu155] [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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Kato K, Ohkusa T, Terao S, Chiba T, Murakami K, Yanaka A, Uehara T, Ishii Y, Soma M, Tajiri H. Adjunct antibiotic combination therapy for steroid-refractory or -dependent ulcerative colitis: an open-label multicentre study. Aliment Pharmacol Ther 2014; 39:949-56. [PMID: 24628398 DOI: 10.1111/apt.12688] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/13/2013] [Revised: 08/28/2013] [Accepted: 02/13/2014] [Indexed: 02/05/2023]
Abstract
BACKGROUND We previously demonstrated that antibiotic combination therapy is effective for induction and maintenance of ulcerative colitis (UC) remission. AIM To assess whether antibiotic combination therapy is effective for active UC refractory to or dependent on steroids in a multicentre, open-label trial. METHODS We enrolled 30 patients with steroid-refractory and 64 with steroid-dependent active UC. These patients received three-times-daily by mouth amoxicillin 500 mg, tetracycline 500 mg and metronidazole 250 mg, for two weeks, as well as conventional treatment. Symptom assessment and colonoscopic evaluation were performed before enrolment and at 3 and 12 months after treatment completion. Clinical response was defined as a Lichtiger symptom score decrease in ≥3 points and clinical remission as a score ≤4. RESULTS Nineteen of the 30 steroid-refractory (63.3%) and 47 of the 64 steroid-dependent (73.4%) patients showed a clinical response within 2 weeks. At 3 and 12 months, 60% and 66.6% of steroid-refractory patients, and 56.3% and 51.6% of steroid-dependent patients, respectively, achieved clinical remission. In the steroid-dependent group, 39 of the 64 patients (60.9%) were able to stop steroid therapy and remained in remission for 3 months. Three (10%) steroid-refractory and four (6.3%) steroid-dependent patients underwent colectomy. CONCLUSIONS This multicentre, long-term follow-up study suggests 2 week antibiotic combination therapy to be effective and safe in patients with active UC refractory to or dependent on steroids.
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Affiliation(s)
- K Kato
- Division of Research Planning and Development, Nihon University School of Medicine, Tokyo, Japan
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Chiba T, Sonoo M, Oishi C, Uchino K, Okuma H, Kurono H, Hokkoku K, Hatanaka Y. Initial dip and bilobed N21 peak in the tibial nerve SEPs suggest predominant demyelination in the nerve root. J Neurol Sci 2013. [DOI: 10.1016/j.jns.2013.07.1644] [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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Uchino K, Ogawa G, Chiba T, Hokkoku K, Hatanaka Y, Sonoo M. Etiological consideration of 26 patients with dropped head syndrome. J Neurol Sci 2013. [DOI: 10.1016/j.jns.2013.07.1639] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Ohyama Y, Kawamoto Y, Chiba T, Maeda G, Sakashita H, Imai K. Inhibition of TGF-β and EGF pathway gene expression and migration of oral carcinoma cells by mucosa-associated lymphoid tissue 1. Br J Cancer 2013; 109:207-14. [PMID: 23778523 PMCID: PMC3708584 DOI: 10.1038/bjc.2013.307] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2013] [Revised: 04/01/2013] [Accepted: 05/20/2013] [Indexed: 12/02/2022] Open
Abstract
Background: Expression of mucosa-associated lymphoid tissue 1 (MALT1) is inactivated in oral carcinoma patients with worse prognosis. However, the role in carcinoma progression is unknown. Unveiling genes under the control of MALT1 is necessary to understand the pathology of carcinomas. Methods: Gene data set differentially transcribed in MALT1-stably expressing and -marginally expressing oral carcinoma cells was profiled by the microarray analysis and subjected to the pathway analysis. Migratory abilities of cells in response to MALT1 were determined by wound-healing assay and time-lapse analysis. Results: Totally, 2933 genes upregulated or downregulated in MALT1-expressing cells were identified. The subsequent pathway analysis implicated the inhibition of epidermal growth factor and transforming growth factor-β signalling gene expression, and highlighted the involvement in the cellular movement. Wound closure was suppressed by wild-type MALT1 (66.4%) and accelerated by dominant-negative MALT1 (218.6%), and the velocities of cell migration were increased 0.2-fold and 3.0-fold by wild-type and dominant-negative MALT1, respectively. Conclusion: These observations demonstrate that MALT1 represses genes activating the aggressive phenotype of carcinoma cells, and suggest that MALT1 acts as a tumour suppressor and that the loss of expression stimulates oral carcinoma progression.
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Affiliation(s)
- Y Ohyama
- Department of Oral and Maxillofacial Surgery 2, Meikai University, 1-1 Keyakidai, Sakado, Saitama 350-0283, Japan
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47
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Cong GW, Matsukawa T, Chiba T, Tadokoro H, Yanagihara M, Ohno M, Kawashima H, Kuwatsuka H, Igarashi Y, Masahara M, Ishikawa H. Large current MOSFET on photonic silicon-on-insulator wafers and its monolithic integration with a thermo-optic 2 × 2 Mach-Zehnder switch. Opt Express 2013; 21:6889-6894. [PMID: 23546071 DOI: 10.1364/oe.21.006889] [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] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
n-channel body-tied partially depleted metal-oxide-semiconductor field-effect transistors (MOSFETs) were fabricated for large current applications on a silicon-on-insulator wafer with photonics-oriented specifications. The MOSFET can drive an electrical current as large as 20 mA. We monolithically integrated this MOSFET with a 2 × 2 Mach-Zehnder interferometer optical switch having thermo-optic phase shifters. The static and dynamic performances of the integrated device are experimentally evaluated.
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Affiliation(s)
- G W Cong
- Network Photonics Research Center, National Institute of Advanced Industrial Science and Technology (AIST), Umezono 1-1-1, Tsukuba, Ibaraki 305-8568, Japan.
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Setoyma T, Miyamoto S, Horimatsu T, Morita S, Ezoe Y, Muto M, Watanabe G, Tanaka E, Chiba T. Multimodal endoscopic treatment for delayed severe esophageal stricture caused by incomplete stent removal. Dis Esophagus 2013; 27:112-5. [PMID: 23441591 DOI: 10.1111/dote.12041] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The usefulness of a covered self-expandable metallic stent for benign esophageal stricture and perforation was well established. In case of benign disease, early stent removal was recommended within 6-8 weeks after placement. A case with severe esophageal stricture caused by incomplete stent removal 7 years after stent placement for spontaneous esophageal rupture was reported. Residual stent fragments could be removed by step-by-step multimodal endoscopic treatment, producing satisfactory luminal diameter of the esophagus. In particular, stent trimming with argon plasma coagulation was safe and effective strategy. The endoscopic stent removal is minimally invasive and should be attempted before surgical intervention; however, it is most important to ensure early stent removal before tissue ingrowth or overgrowth can develop.
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Affiliation(s)
- T Setoyma
- Department of Gastroenterology and Hepatology, Kyoto University Graduate School of Medicine, Kyoto, Japan
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Chiba T, Tsuji G, Mitoma H, Takahara M, Moroi Y, Miyamoto T, Furue M. Acquired haemophilia treated successfully with rituximab in a patient with pemphigus vulgaris. Haemophilia 2013; 19:e98-9. [DOI: 10.1111/hae.12087] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/17/2012] [Indexed: 01/30/2023]
Affiliation(s)
| | - G. Tsuji
- Department of Dermatology; Graduate School of Medical Sciences; Kyushu University; Fukuoka; Japan
| | - H. Mitoma
- Department of Medicine and Biosystemic Science; Graduate School of Medical Sciences; Kyushu University; Fukuoka; Japan
| | - M. Takahara
- Department of Dermatology; Graduate School of Medical Sciences; Kyushu University; Fukuoka; Japan
| | - Y. Moroi
- Department of Dermatology; Graduate School of Medical Sciences; Kyushu University; Fukuoka; Japan
| | - T. Miyamoto
- Department of Medicine and Biosystemic Science; Graduate School of Medical Sciences; Kyushu University; Fukuoka; Japan
| | - M. Furue
- Department of Dermatology; Graduate School of Medical Sciences; Kyushu University; Fukuoka; Japan
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Sekikawa A, Fukui H, Zhang X, Maruo T, Tsumura T, Okabe Y, Wakasa T, Osaki Y, Chiba T, Tomita T, Oshima T, Watari J, Miwa H. REG Iα is a biomarker for predicting response to chemotherapy with S-1 plus cisplatin in patients with unresectable stage IV gastric cancer. Br J Cancer 2013; 108:395-401. [PMID: 23322208 PMCID: PMC3566803 DOI: 10.1038/bjc.2012.572] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Background: The regenerating gene Iα (REG Iα) is involved in gastric carcinogenesis as an antiapoptotic factor. Therefore, we investigated whether REG Iα confers resistance to chemotherapeutic drugs in gastric cancer (GC) cells and whether REG Iα expression is useful for predicting the response to chemotherapy and outcome in patients with GC. Methods: A total of 70 patients with unresectable stage IV GC received first-line chemotherapy with S-1 and cisplatin (S-1/CDDP). The expression of REG Iα was evaluated immunohistochemically using biopsy samples obtained before chemotherapy, and its relationship to clinicopathological parameters was analysed statistically. The effects of REG Iα gene induction on resistance to 5-FU or CDDP treatment were examined by cell survival assay and flow cytometry. Results: Of the 70 patients with unresectable stage IV GC, 19 (27%) were positive for REG Iα expression. The expression of REG Iα was independently predictive of poorer progression-free and overall survival in such patients (hazard ratio (HR) 2.46; P=0.002 and HR 1.89; P=0.037, respectively). The gene induction of REG Iα conferred resistance to cell death induced by 5-FU or CDDP in GC cells. Conclusion: In patients with stage IV GC, REG Iα, which confers resistance to chemotherapeutic drugs in GC cells, is a potential biomarker for predicting resistance to S-1/CDDP treatment.
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Affiliation(s)
- A Sekikawa
- Department of Gastroenterology and Hepatology, Osaka Red Cross Hospital, Osaka, Japan
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