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Hamazaki N, Kamiya K, Nozaki K, Yamashita M, Uchida S, Noda T, Ogura K, Nagumo D, Maekawa E, Yamaoka-Tojo M, Matsunaga A, Kitamura T, Ako J, Miyaji K. Trends and outcomes of early rehabilitation in intensive care unit for patients with cardiovascular disease – a cohort study with propensity score-matched analysis. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.2468] [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
Early rehabilitation in the intensive care unit (ICU), including early mobility therapy, is known to improve the clinical outcomes in patients with critically ill. However, the effectiveness of acute-phase cardiovascular rehabilitation (CR) during ICU treatment have not been thoroughly evaluated in patients with cardiovascular disease (CVD).
Purpose
We aimed to investigate the trends and outcomes of acute-phase CR in the ICU for patients with CVD, including in-hospital and long-term clinical outcomes.
Methods
We reviewed 1948 consecutive patients with CVD admitted to tertiary academic ICU at a university hospital. Patients were arbitrarily assessed by an ICU team consisting of medical and surgical doctors, nurses and physiotherapists within 24 hours after admission to ICU to discover whether their rehabilitation could be initiated according to the specific clinical trial and statement. As clinical characteristics, disease aetiology, comorbid conditions, and ICU treatment were obtained from an electronic database. We evaluated the probability of return to walking independence and return to home as in-hospital clinical outcomes. All patients were followed for five years and investigated all-cause and cardiovascular events after hospital discharge as long-term clinical outcomes. The associations between the implementation of CR during ICU treatment (ICU-CR) and clinical outcomes were evaluated using propensity score-matched analysis with adjustment for clinical characteristics in all matched patients and various subgroups, including aged >65 years, surgical patients, emergency, and length of ICU stay ≥48 hours.
Results
Out of studied patients, 1092 patients received ICU-CR, the number of which positively correlated with year-trend (r=0.986, P<0.001). After propensity score matching with adjustment for clinical characteristics including calendar years, 758 patients were included for analysis (pairs of n=379 ICU-CR and non-ICU-CR). The ICU-CR was significantly associated with a higher probability of return to walking independence (incident rate ratio [IRR], 2.04; 95% confidence interval [CI], 1.77–2.36) and return to home (IRR, 1.22 95% CI, 1.05–1.41). These associations were consistently observed in various subgroups regarding CVD conditions (Figure 1). During the median follow-up periods of 2.6 years, all-cause clinical events and cardiovascular events occurred in 289 patients (38.1%) and 153 patients (20.2%), respectively. The ICU-CR showed significantly lower rates of five-year all-cause and cardiovascular events than non-ICU-CR (hazard ratio [95% CI] for all-cause events and cardiovascular events, 0.71 [0.56–0.89] and 0.69 [0.50–0.95], respectively, Figure 2).
Conclusions
The implementation of acute-phase CR in the ICU increased with year-trend, considered beneficial to improve in-hospital and long-term clinical outcomes in patients with CVD and various subgroups of relatively severe disease conditions.
Funding Acknowledgement
Type of funding sources: None.
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Affiliation(s)
- N Hamazaki
- Kitasato University Hospital, Department of Rehabilitation , Sagamihara , Japan
| | - K Kamiya
- Kitasato University School of Allied Health Sciences, Department of Rehabilitation , Sagamihara , Japan
| | - K Nozaki
- Kitasato University Hospital, Department of Rehabilitation , Sagamihara , Japan
| | - M Yamashita
- Kitasato University Graduate School of Medical Sciences, Department of Rehabilitation Sciences , Sagamihara , Japan
| | - S Uchida
- Kitasato University Graduate School of Medical Sciences, Department of Rehabilitation Sciences , Sagamihara , Japan
| | - T Noda
- Kitasato University Graduate School of Medical Sciences, Department of Rehabilitation Sciences , Sagamihara , Japan
| | - K Ogura
- Kitasato University Graduate School of Medical Sciences, Department of Rehabilitation Sciences , Sagamihara , Japan
| | - D Nagumo
- Kitasato University Graduate School of Medical Sciences, Department of Rehabilitation Sciences , Sagamihara , Japan
| | - E Maekawa
- Kitasato University School of Medicine, Department of Cardiovascular Medicine , Sagamihara , Japan
| | - M Yamaoka-Tojo
- Kitasato University School of Allied Health Sciences, Department of Rehabilitation , Sagamihara , Japan
| | - A Matsunaga
- Kitasato University School of Allied Health Sciences, Department of Rehabilitation , Sagamihara , Japan
| | - T Kitamura
- Kitasato University School of Medicine, Department of Cardiovascular Surgery , Sagamihara , Japan
| | - J Ako
- Kitasato University School of Medicine, Department of Cardiovascular Medicine , Sagamihara , Japan
| | - K Miyaji
- Kitasato University School of Medicine, Department of Cardiovascular Surgery , Sagamihara , Japan
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Ogura K, Hamazaki N, Kamiya K, Kitamura T, Kobayashi S, Ichikawa T, Yamashita M, Uchida S, Noda T, Nagumo D, Maekawa E, Yamaoka-Tojo M, Matsunaga A, Ako J, Miyaji K. Perme ICU Mobility Score as a comprehensive assessment tool of acute-phase rehabilitation is correlated with clinical outcomes in patients after cardiovascular surgery. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.2469] [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
Early mobility therapy in the intensive care unit (ICU) is widely employed to improve the physical function and prognosis of patients with critically ill. On the other hand, patients who undergo cardiovascular surgery frequently suffer from disabilities after ICU care due to their cardiopulmonary conditions and treatments. However, few studies have reported the procedures and assessments of acute-phase rehabilitation in these patients. Recently, the Perme ICU Mobility Score (Perme Score) was developed as a reliable tool to assess comprehensive mobility status of patients in the ICU. We hypothesised that the Perme Score is a useful tool for assessing the mobility levels in the ICU and predicting clinical outcomes in patients undergoing acute-phase rehabilitation after cardiovascular surgery.
Purpose
To investigate the associations between the Perme Score within the second days after cardiovascular surgery and the patients' clinical outcomes, including physical function and the incidence of clinical events.
Methods
We studied 224 consecutive patients (34.4% female; aged 65±13 years) who were admitted to the ICU of a tertiary academic hospital after cardiac and/or major vascular surgery. Clinical characteristics including patient profiles, comorbidities, surgical details and APACHE II and SOFA scores were evaluated on ICU admission. The Perme Score contains categories on mental status, potential mobility barriers, muscle strength and mobility level, with higher scores indicating greater activity levels in the ICU. We assessed the Perme Score within the second days after the surgery. As a physical function at hospital discharge, we measured the six-minute walk distance (6MWD). The primary endpoint was a composite outcome of the number of all-cause mortality and/or all-cause unplanned readmission. We analysed the associations of the Perme Score with the 6MWD and the incidence of clinical events using multiple regression analysis and multivariate Poisson regression analysis, respectively.
Results
After adjusting for clinical confounding factors, a higher Perme Score was an independent factor of a higher 6MWD (Table 1). During the median follow-up period of 1.3 years, 51 cases of all-cause mortality/readmission occurred in 37 (16.5%) patients, with an incidence rate of 18.6/100 person-years. In the multivariate Poisson regression analysis, even after adjusting for the severity score in the ICU, a higher Perme Score was significantly and independently associated with lower rates of all-cause clinical events (adjusted incident rate ratio: 0.96, 95% confidence interval: 0.93–0.99, P=0.008, Figure 1).
Conclusions
The Perme Score within the second days after cardiovascular surgery is correlated with physical function at hospital discharge and the incidence of clinical events after discharge. Thus, a comprehensive assessment of acute-phase rehabilitation after cardiovascular surgery may be useful in predicting clinical outcomes.
Funding Acknowledgement
Type of funding sources: None.
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Affiliation(s)
- K Ogura
- Kitasato University Graduate School of Medical Sciences, Department of Rehabilitation Sciences , Sagamihara , Japan
| | - N Hamazaki
- Kitasato University Hospital, Department of Rehabilitation , Sagamihara , Japan
| | - K Kamiya
- Kitasato University School of Allied Health Sciences, Department of Rehabilitation , Sagamihara , Japan
| | - T Kitamura
- Kitasato University School of Medicine, Department of Cardiovascular Surgery , Sagamihara , Japan
| | - S Kobayashi
- Kitasato University Hospital, Department of Rehabilitation , Sagamihara , Japan
| | - T Ichikawa
- Kitasato University Hospital, Department of Rehabilitation , Sagamihara , Japan
| | - M Yamashita
- Kitasato University Graduate School of Medical Sciences, Department of Rehabilitation Sciences , Sagamihara , Japan
| | - S Uchida
- Kitasato University Graduate School of Medical Sciences, Department of Rehabilitation Sciences , Sagamihara , Japan
| | - T Noda
- Kitasato University Graduate School of Medical Sciences, Department of Rehabilitation Sciences , Sagamihara , Japan
| | - D Nagumo
- Kitasato University Graduate School of Medical Sciences, Department of Rehabilitation Sciences , Sagamihara , Japan
| | - E Maekawa
- Kitasato University School of Medicine, Department of Cardiovascular Medicine , Sagamihara , Japan
| | - M Yamaoka-Tojo
- Kitasato University School of Allied Health Sciences, Department of Rehabilitation , Sagamihara , Japan
| | - A Matsunaga
- Kitasato University School of Allied Health Sciences, Department of Rehabilitation , Sagamihara , Japan
| | - J Ako
- Kitasato University School of Medicine, Department of Cardiovascular Medicine , Sagamihara , Japan
| | - K Miyaji
- Kitasato University School of Medicine, Department of Cardiovascular Surgery , Sagamihara , Japan
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3
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Miki T, Kamiya K, Hamazaki N, Nozaki K, Ichikawa T, Yamashita M, Uchida S, Noda T, Ueno K, Yamaoka-Tojo M, Maekawa E, Sasaki J, Matsunaga A, Ako J. Cancer as a risk factor for physical dysfunction and poor prognosis in patients with cardiovascular disease. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.2573] [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
Introduction
The emerging interdisciplinary field of cardio-oncology is of interest to clinicians because a history of cancer or cancer treatment is considered a severe risk factor for cardiovascular disease (CVD). Both cancer and CVD can reduce skeletal muscle mass; together, they can lead to a poorer prognosis. However, it is unclear whether a patient's cancer history can lower physical function and lead to a poor prognosis with the coexistence of cancer history and physical dysfunction in patients with CVD. This study aimed to identify the relationship between cancer history and physical function, as well as the prognostic value of their combination, in patients with CVD.
Methods
We reviewed 3,640 patients with CVD (mean age, 67.9±13.5 years) who underwent physical-function tests (gait speed and 6-min walking distance [6MWD]). We performed multivariate linear regression analysis to assess potential associations between cancer history and physical-function tests in patients with CVD. Additionally, we used the Kaplan–Meier curve and Cox regression analyses to assess survival and prognostic significance for patients divided into four groups according to the presence or absence of cancer history and high or low physical function.
Results
In multivariate linear regression analysis, cancer history was independently associated with lower gait speed and 6MWD (gait speed, P=0.048 and 6MWD, P=0.040). A total of 581 deaths occurred over a median follow-up period of 3.08 years (interquartile range: 1.36–5.27). For all-cause mortality, patients with a history of cancer and reduced physical function were found to have a significantly higher mortality risk even after adjusting for several covariates (gait speed, HR: 1.66, P=0.003 and 6MWD, HR: 1.71, P=0.003).
Conclusion
Cancer history was correlated with physical dysfunction in patients with CVD. Moreover, the coexistence of cancer history and physical dysfunction resulted in poorer prognosis in patients with CVD.
Funding Acknowledgement
Type of funding sources: None.
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Affiliation(s)
- T Miki
- Kitasato University Graduate School of Medical Sciences, Department of Rehabilitation Sciences , Sagamihara , Japan
| | - K Kamiya
- Kitasato University School of Allied Health Sciences, Department of Rehabilitation , Sagamihara , Japan
| | - N Hamazaki
- Kitasato University Hospital, Department of Rehabilitation , Sagamihara , Japan
| | - K Nozaki
- Kitasato University Hospital, Department of Rehabilitation , Sagamihara , Japan
| | - T Ichikawa
- Kitasato University Hospital, Department of Rehabilitation , Sagamihara , Japan
| | - M Yamashita
- Kitasato University Graduate School of Medical Sciences, Department of Rehabilitation Sciences , Sagamihara , Japan
| | - S Uchida
- Kitasato University Graduate School of Medical Sciences, Department of Rehabilitation Sciences , Sagamihara , Japan
| | - T Noda
- Kitasato University Graduate School of Medical Sciences, Department of Rehabilitation Sciences , Sagamihara , Japan
| | - K Ueno
- Kitasato University Graduate School of Medical Sciences, Department of Rehabilitation Sciences , Sagamihara , Japan
| | - M Yamaoka-Tojo
- Kitasato University School of Allied Health Sciences, Department of Rehabilitation , Sagamihara , Japan
| | - E Maekawa
- Kitasato University School of Medicine, Department of Cardiovascular Medicine , Sagamihara , Japan
| | - J Sasaki
- Kitasato University School of Medicine, Research and Development Center for New Medical Frontiers , Sagamihara , Japan
| | - A Matsunaga
- Kitasato University School of Allied Health Sciences, Department of Rehabilitation , Sagamihara , Japan
| | - J Ako
- Kitasato University School of Medicine, Department of Cardiovascular Medicine , Sagamihara , Japan
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Nozaki K, Hamazaki N, Kamiya K, Uchida S, Noda T, Maekawa E, Matsunaga A, Yamaoka-Tojo M, Ako J. Sex differences in frequency of instrumental activities of daily living after cardiac rehabilitation and its impact on long-term mortality in patients with heart failure. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.2755] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Introduction
While the major outcome of cardiac rehabilitation for heart failure (HF) is the improvement of exercise tolerance, prognosis, and quality of life, instrumental activities of daily living (IADL) has also been focused on as one of the its outcomes. IADL has been reported to be associated with all-cause mortality and quality of life in community-dwelling people and in patients with stable heart disease, but no report has examined the relationship between IADL after cardiac rehabilitation for HF and prognosis. In addition, it is assumed that sex differences may affect the frequency of performing each component of IADL, but there are no reports examining the association with prognosis by sex.
Purpose
The present study aimed to investigate the sex differences in frequency of IADL and its impact on outcomes.
Methods
We retrospectively studied 490 consecutive patients who were admitted due to acute decompensated HF and participated in outpatient cardiac rehabilitation after discharge. The study was performed in accordance with the tenets of the Declaration of Helsinki, and the protocol was approved by the Ethics Committee of our institution. IADL frequency was assessed using the questionnaire-based Frenchay Activities Index (FAI). The primary endpoint was all-cause death and secondary endpoint was combined events (all-cause death and/or readmission due to HF). We performed the Kaplan–Meier and log-rank tests and multivariable Cox regression analysis to evaluate the prognostic predictive capability of the FAI.
Results
The study population had a median age of 69 (interquartile range [IQR]: 58–76) years, and 33.9% of patients were females. The median FAI score was 24 (IQR: 16–29) points. According to the Youden index based on the area under the curve calculated by the receiver operating characteristics curve, the cut-off values of FAI for all-cause death in all-over, females, and males were 23, 22, and 23 points, respectively. Over a median follow-up period of 4.8 years (IQR: 2.3–6.6 years), all-cause death and combined events were occurred in 95 (19.4%) and 213 (43.5%), respectively. After adjustment for several pre-existing prognostic factors, IADL assessed by the FAI was independently associated with all-cause mortality (hazard ratio [HR]: 0.961, 95% confidence interval [CI]:0.937–0.986) and combined events (HR: 0.968, 95% CI: 0.952–0.985), respectively. In addition, there was no interaction between sex in prognostic capability (P=0.664).
Conclusion
Lower IADL frequency assessed by FAI at the end of outpatient cardiac rehabilitation was shown to be associated with poorer prognosis in patients with HF, regardless of sex. The IADL level is generally higher in females than in males but seems to be a useful marker for risk stratification at the end of cardiac rehabilitation in both females and males.
Funding Acknowledgement
Type of funding sources: Public grant(s) – National budget only. Main funding source(s): Grant-in-Aid [JSPS KAKENHI Grant Number JP 19K19884]
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Affiliation(s)
- K Nozaki
- Kitasato University Hospital , Sagamihara , Japan
| | - N Hamazaki
- Kitasato University Hospital , Sagamihara , Japan
| | - K Kamiya
- Kitasato University Graduate School of Medical Sciences , Sagamihara , Japan
| | - S Uchida
- Kitasato University Graduate School of Medical Sciences , Sagamihara , Japan
| | - T Noda
- Kitasato University Graduate School of Medical Sciences , Sagamihara , Japan
| | - E Maekawa
- Kitasato University School of Medicine , Sagamihara , Japan
| | - A Matsunaga
- Kitasato University Graduate School of Medical Sciences , Sagamihara , Japan
| | - M Yamaoka-Tojo
- Kitasato University Graduate School of Medical Sciences , Sagamihara , Japan
| | - J Ako
- Kitasato University School of Medicine , Sagamihara , Japan
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5
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Nagumo D, Hamazaki N, Kamiya K, Obara S, Kobayashi S, Nozaki K, Ichikawa T, Yamashita M, Uchida S, Noda T, Ogura K, Maekawa E, Yamaoka-Tojo M, Matsunaga A, Ako J. Impact of small-airway disease on exercise intolerance and long-term outcomes in patients with heart failure and reduced or preserved ejection fraction. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.2482] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Introduction
Exercise intolerance in patients with heart failure (HF) is a strong indicator of a poor prognosis. As the respiratory impairment in HF patients, the small airway is reportedly more susceptible than central airways, which results in increased airway resistance and may cause poor outcomes. However, the impact of small-airway disease (SAD) on exercise intolerance and prognosis in patients with HF is still unclear.
Purpose
We investigated the associations between SAD and exercise intolerance in patients with HF, and the clinical significance of SAD for long-term clinical events with a reduced or preserved ejection fraction.
Methods
We reviewed 1015 patients with HF (mean age, 66.9±14.6 years; male, 64.5%) admitted for medical treatment. Patients with a prior history of chronic respiratory disease or an obstructive lung pattern – defined as the forced expiratory volume (%) in 1 s relative to <70% forced vital capacity using spirometry – were excluded. Characteristics including HF aetiology, comorbidities conditions, medications, blood parameters, and echocardiographic variables were obtained from clinical records. All patients underwent spirometry at hospital discharge, and SAD was defined as the maximum mid-expiratory flow (%) relative to a <60% predicted value. At hospital discharge, we measured 6-min walk distance (6MWD), and <300 m was considered as exercise intolerance. The primary endpoint was a composite clinical event of all-cause death and/or unplanned readmission for HF. Multivariate logistic regression analysis was used to assess the association between SAD and exercise intolerance. The multivariate Cox proportional hazard model was used to clarify whether SAD was an independent predictor for the incidence of clinical events. We also performed subgroup analyses in each multivariate analysis based on a left ventricular ejection fraction (LVEF) of 40%.
Result
SAD was observed in 479 (47.2%) patients. LVEF subgroups included 458 (45.1%) and 518 (51.0%) patients with LVEF <40% and ≥40%, respectively. After adjusting for clinical characteristics, SAD was independently associated with 6MWD <300 m (Figure 1). Moreover, this association was consistently observed in the LVEF <40% and ≥40% (Figure 1). During the median follow-up period of 1.5 years, all-cause death/readmission occurred in 431 patients (42.5%), and the incidence rate was 17.5/100 person-years. In the multivariate Cox proportional hazard model, SAD was independently associated with lower event-free survival rates in all patients and the LVEF <40% subgroup, but not LVEF ≥40% subgroup (Figure 2A, B, and C, respectively).
Conclusion
This study is the first to reveal that SAD is associated with exercise intolerance in patients with HF regardless of LVEF. Moreover, SAD may have a predictive significance for long-term outcomes in patients with HF and subgroups with reduced, but not preserved ejection fraction.
Funding Acknowledgement
Type of funding sources: None.
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Affiliation(s)
- D Nagumo
- Kitasato University Graduate School of Medical Sciences, Department of Rehabilitation Sciences , Sagamihara , Japan
| | - N Hamazaki
- Kitasato University Hospital, Department of Rehabilitation , Sagamihara , Japan
| | - K Kamiya
- Kitasato University of Allied Health Sciences, Department of Rehabilitation , Sagamihara , Japan
| | - S Obara
- Kitasato University Hospital, Department of Rehabilitation , Sagamihara , Japan
| | - S Kobayashi
- Kitasato University Hospital, Department of Rehabilitation , Sagamihara , Japan
| | - K Nozaki
- Kitasato University Hospital, Department of Rehabilitation , Sagamihara , Japan
| | - T Ichikawa
- Kitasato University Hospital, Department of Rehabilitation , Sagamihara , Japan
| | - M Yamashita
- Kitasato University Graduate School of Medical Sciences, Department of Rehabilitation Sciences , Sagamihara , Japan
| | - S Uchida
- Kitasato University Graduate School of Medical Sciences, Department of Rehabilitation Sciences , Sagamihara , Japan
| | - T Noda
- Kitasato University Graduate School of Medical Sciences, Department of Rehabilitation Sciences , Sagamihara , Japan
| | - K Ogura
- Kitasato University Graduate School of Medical Sciences, Department of Rehabilitation Sciences , Sagamihara , Japan
| | - E Maekawa
- Kitasato University School of Medicine, Department of Cardiovascular Medicine , Sagamihara , Japan
| | - M Yamaoka-Tojo
- Kitasato University of Allied Health Sciences, Department of Rehabilitation , Sagamihara , Japan
| | - A Matsunaga
- Kitasato University of Allied Health Sciences, Department of Rehabilitation , Sagamihara , Japan
| | - J Ako
- Kitasato University School of Medicine, Department of Cardiovascular Medicine , Sagamihara , Japan
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6
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Noda T, Kamiya K, Hamazaki N, Nozaki K, Ichikawa T, Yamashita M, Uchida S, Ueno K, Maekawa E, Terada T, Reed J, Yamaoka-Tojo M, Matsunaga A, Ako J. SARC-F PREDICTS POOR MOTOR FUNCTION AND PROGNOSIS IN OLDER PATIENTS WITH CARDIOVASCULAR DISEASE WITH COGNITIVE IMPAIRMENT. Can J Cardiol 2022. [DOI: 10.1016/j.cjca.2022.08.169] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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7
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Uchida S, Hattori A, Fukui M, Matsunaga T, Takamochi K, Suzuki K. EP02.03-025 Long-Term Oncological Outcomes and Risk Factors of Recurrence After Segmentectomy for Primary Lung Cancer. J Thorac Oncol 2022. [DOI: 10.1016/j.jtho.2022.07.381] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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8
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Shakuta S, Yamashita M, Kamiya K, Hamazaki N, Nozaki K, Uchida S, Noda T, Ueno K, Maekawa E, Yamaoka-Tojo M, Matsunaga A, Ako J. Relationship between the spread of coronavirus disease 2019, social frailty and depressive symptoms in patients with heart failure. Eur J Prev Cardiol 2022. [DOI: 10.1093/eurjpc/zwac056.026] [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]
Abstract
Abstract
Funding Acknowledgements
Type of funding sources: Public grant(s) – National budget only. Main funding source(s): the Japan Society for the Promotion of Science (JSPS) KAKENHI
Background
Owing to the spread of coronavirus disease 2019 (COVID-19), people have refrained from going out unnecessarily and have been maintaining social distance. These new lifestyle approaches have affected people physically, psychologically, and socially. Patients with heart failure (HF) are more likely to have social frailty, physical frailty, cognitive impairment, and depressive symptoms, and an overlap of these conditions leads to adverse events. Therefore, multi-domain assessment and understanding of the condition of patients with HF are important for disease management. The spread of COVID-19 is a predicted risk factor for these events, but its impact in patients with HF has not been investigated.
Purpose
We investigated whether the spread of COVID-19 is associated with the development of the multi-domain of frailty in patients with HF.
Methods
Patients who were independent in their daily activities before admission were included in the study. The presence of social frailty (Makizako’s five items), physical frailty (Fried phenotype model), cognitive impairment (Mini-Cog), and depressive symptoms (the Patient Health Questionnaire-2) in patients with HF were assessed at hospital discharge. Logistic regression analyses were used to examine the impact of the spread of COVID-19 on the development of the multi-domain of frailty in patients with HF.
Results
We included 482 patients in this study. Median patient age was 74 years, and 64.5% were male. In multivariate logistic regression analyses, the spread of COVID-19 was significantly associated with the development of social frailty (odds ratio [OR]: 1.15, 95% confidence interval [CI]: 1.02–1.30) and depressive symptoms (OR: 1.14, 95% CI: 1.02–1.27) but not with the development of physical frailty (OR: 1.24, 95% CI: 0.51–3.02) and cognitive impairment (OR: 1.72, 95% CI: 0.80–3.73).
Conclusion
The spread of COVID-19 was associated with the development of social frailty and depressive symptoms in patients with HF. Evaluation of social frailty and depressive symptoms during hospitalization would support disease management and understand their social and psychological conditions specific to the spread of COVID-19.
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Affiliation(s)
- S Shakuta
- Kitasato University Graduate School of Medical Sciences, Rehabilitation Sciences, Sagamihara, Japan
| | - M Yamashita
- Kitasato University Graduate School of Medical Sciences, Rehabilitation Sciences, Sagamihara, Japan
| | - K Kamiya
- Kitasato University Graduate School of Medical Sciences, Rehabilitation Sciences, Sagamihara, Japan
| | - N Hamazaki
- Kitasato University Hospital, Rehabilitation, Sagamihara, Japan
| | - K Nozaki
- Kitasato University Hospital, Rehabilitation, Sagamihara, Japan
| | - S Uchida
- Kitasato University Graduate School of Medical Sciences, Rehabilitation Sciences, Sagamihara, Japan
| | - T Noda
- Kitasato University Graduate School of Medical Sciences, Rehabilitation Sciences, Sagamihara, Japan
| | - K Ueno
- Kitasato University Graduate School of Medical Sciences, Rehabilitation Sciences, Sagamihara, Japan
| | - E Maekawa
- Kitasato University School of Medicine, Cardiovascular Medicine, Sagamihara, Japan
| | - M Yamaoka-Tojo
- Kitasato University Graduate School of Medical Sciences, Rehabilitation Sciences, Sagamihara, Japan
| | - A Matsunaga
- Kitasato University Graduate School of Medical Sciences, Rehabilitation Sciences, Sagamihara, Japan
| | - J Ako
- Kitasato University School of Medicine, Cardiovascular Medicine, Sagamihara, Japan
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9
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Noda T, Kamiya K, Hamazaki N, Nozaki K, Ichikawa T, Yamashita M, Uchida S, Maekawa E, Yamaoka-Tojo M, Matsunaga A, Ako J. Prevalence of metabolic dysfunction-associated fatty liver disease and its association with physical function in patients with acute coronary syndrome. Eur J Prev Cardiol 2022. [DOI: 10.1093/eurjpc/zwac056.059] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
Funding Acknowledgements
Type of funding sources: Public grant(s) – National budget only. Main funding source(s): JSPS KAKENHI
Background
It is widely known that patients with acute coronary syndrome (ACS) are at increased risk of nonalcoholic fatty liver disease (NAFLD), which is linked to sarcopenia and physical dysfunction. However, the relationship between metabolic dysfunction-associated fatty liver disease (MAFLD) and physical dysfunction remains unclear.
Purpose
The purpose of this study was to investigate the prevalence of MAFLD in patients with ACS to assess the relationship between MAFLD and muscle strength, walking speed, and 6-minute walking distance (6 MWD).
Methods
We reviewed patients with ACS who were assessed for hepatic steatosis using the fatty liver index, and the results were further assessed to determine the presence of MAFLD. Multiple regression analysis was used to examine the association between MAFLD and physical function.
Results
Among 479 enrolled hospitalized patients, MAFLD was identified in 234 (48.9%) patients. We conducted a multiple regression analysis in which MAFLD was independently associated with lower leg strength, gait speed, and 6 MWD (leg strength, P = 0.023; gait speed, P = 0.002 and 6 MWD, P = 0.017). Furthermore, having more metabolic impairment was still associated with lower physical function decline (leg strength, P for trend = 0.002; gait speed, P for trend = 0.019 and 6 MWD, P for trend = 0.003).
Conclusions
MAFLD is common in hospitalized patients with ACS, and most patients with MAFLD have many overlapping metabolic abnormalities. MAFLD is associated with impaired physical function, and the greater the number of overlapping metabolic abnormalities, the worse the motor function.
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Affiliation(s)
- T Noda
- Kitasato University Graduate School of Medical Sciences, Sagamihara, Japan
| | - K Kamiya
- Kitasato University Graduate School of Medical Sciences, Sagamihara, Japan
| | - N Hamazaki
- Kitasato University Hospital, Department of Rehabilitation, Sagamihara, Japan
| | - K Nozaki
- Kitasato University Hospital, Department of Rehabilitation, Sagamihara, Japan
| | - T Ichikawa
- Kitasato University Hospital, Department of Rehabilitation, Sagamihara, Japan
| | - M Yamashita
- Kitasato University Graduate School of Medical Sciences, Sagamihara, Japan
| | - S Uchida
- Kitasato University Graduate School of Medical Sciences, Sagamihara, Japan
| | - E Maekawa
- Kitasato University School of Medicine, Department of Cardiovascular Medicine, Sagamihara, Japan
| | - M Yamaoka-Tojo
- Kitasato University Graduate School of Medical Sciences, Sagamihara, Japan
| | - A Matsunaga
- Kitasato University Graduate School of Medical Sciences, Sagamihara, Japan
| | - J Ako
- Kitasato University School of Medicine, Department of Cardiovascular Medicine, Sagamihara, Japan
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10
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Uchida S, Kamiya K, Hamazaki N, Nozaki K, Ichikawa T, Yamashita M, Noda T, Maekawa E, Yamaoka-Tojo M, Matsunaga A, Ako J. Skeletal muscle mass metrics as factors in the prognosis of heart failure patients. Eur J Prev Cardiol 2022. [DOI: 10.1093/eurjpc/zwac056.029] [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]
Abstract
Abstract
Funding Acknowledgements
Type of funding sources: Public grant(s) – National budget only. Main funding source(s): JSPS KAKENHI Grant
Background
Sarcopenia is a chronic condition that is characterized by the loss of skeletal muscle mass with declining muscle strength and/or performance that occurs gradually with aging. It has been reported that sarcopenia is highly prevalent in patients with heart failure (HF) and is a poor prognostic factor. Therefore, it is important to accurately assess skeletal muscle mass in patients with HF. However, there are no reports that have simultaneously examined different skeletal muscle mass metrics as factors in the prognosis of HF patients.
Purpose
The purpose of this study is to examine if the different skeletal muscle mass metrics are associated with the prognosis of HF patients.
Methods
We examined a total of 869 patients with HF, aged ≥20 years (73 [63, 80] years; 537 males), who were admitted to our hospital and participated in an inpatient cardiac rehabilitation program. We used skeletal muscle mass index (SMI) as measured by bioelectrical impedance analysis (BIA), mid-upper arm circumference (MUAC), arm muscle circumference (AMC), and calf circumference (CC) as metrics of skeletal muscle mass. The primary outcome was all-cause deaths, and secondary outcome was HF readmission. To investigate the association between each skeletal muscle mass metric and prognosis, patients were divided into three groups according to the tertiles of SMI, MUAC, AMC, and CC. In addition, cumulative event rates of survival curves, Gray test, and Fine & Gray test were performed to evaluate the prognostic predictive capability.
Results
Over a median follow-up period of 0.9 years (interquartile 0.4–1.9) years, a total of 80 deaths and 195 HF readmissions occurred in the patients. Cumulative event rates of survival curves and Gray test showed that there was a significant decrease in all-cause mortality and HF readmission in the high MUAC group and high AMC group compared to their respective low groups (P < 0.05). Fine & Gray test after multivariate adjustment showed significantly better prognosis in the high MUAC group and high AMC group compared to their respective low groups (All-cause mortality: high MUAC group, subdistribution hazard ratio [sHR] = 0.42, 95% confidence interval [CI] = 0.20-0.88, P < 0.05; high AMC group, sHR = 0.34, 95%CI = 0.16-0.72 P < 0.05, HF readmission: high MUAC group, sHR = 0.69, 95%CI = 0.47-1.00, P < 0.05; high AMC group, sHR = 0.63, 95%CI = 0.43-0.93, P < 0.05).
Conclusion
Patients with HF who maintained high MUAC and high AMC had a good prognosis. CC and SMI were not associated with the prognosis of HF patients. This suggests the importance of evaluating MUAC and AMC in HF patients.
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Affiliation(s)
- S Uchida
- Kitasato University Graduate School of Medical Sciences, Sagamihara, Japan
| | - K Kamiya
- Kitasato University, Department of Rehabilitation, School of Allied Health Sciences, Sagamihara, Japan
| | - N Hamazaki
- Kitasato University Hospital, Department of Rehabilitation, Sagamihara, Japan
| | - K Nozaki
- Kitasato University Hospital, Department of Rehabilitation, Sagamihara, Japan
| | - T Ichikawa
- Kitasato University Hospital, Department of Rehabilitation, Sagamihara, Japan
| | - M Yamashita
- Kitasato University Graduate School of Medical Sciences, Sagamihara, Japan
| | - T Noda
- Kitasato University Graduate School of Medical Sciences, Sagamihara, Japan
| | - E Maekawa
- Kitasato University School of Medicine, Department of Cardiovascular Medicine, Sagamihara, Japan
| | - M Yamaoka-Tojo
- Kitasato University, Department of Rehabilitation, School of Allied Health Sciences, Sagamihara, Japan
| | - A Matsunaga
- Kitasato University, Department of Rehabilitation, School of Allied Health Sciences, Sagamihara, Japan
| | - J Ako
- Kitasato University School of Medicine, Department of Cardiovascular Medicine, Sagamihara, Japan
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11
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Miura M, Tanaka S, Ikeda M, Kawakami J, Watanabe H, Namiki N, Uchida S. Increased plasma drug concentration and decreased additional insulin secretion following oral administration of glimepiride in Spontaneously Diabetic Torii rats. Pharmazie 2022; 77:6-8. [PMID: 35045918 DOI: 10.1691/ph.2022.1950] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
We aimed to evaluate the pharmacokinetics and pharmacological effects of glimepiride in the Spontaneously Diabetic Torii (SDT) rat, which is a non-obese model of type 2 diabetes. After oral administration of glimepiride (10 mg/kg), the maximum plasma concentrations and the area under the curve from 0 to 6 h of glimepiride in SDT rats were significantly higher than those in age-matched Sprague-Dawley rats. Whereas, additional insulin secretion following glimepiride treatment was markedly reduced in SDT rats. Thus, the SDT rat can be regarded as a model that reflects type 2 diabetes with reduced insulin secretory capacity. Our findings suggested that glimepiride could be ineffective in sever type 2 diabetic patients.
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Affiliation(s)
- M Miura
- Departments of Pharmacy Practice & Science, School of Pharmaceutical Sciences, University of Shizuoka
| | - S Tanaka
- Departments of Pharmacy Practice & Science, School of Pharmaceutical Sciences, University of Shizuoka
| | - M Ikeda
- Graduate School of Environment and Disaster Research, Tokoha University
| | - J Kawakami
- Hospital Pharmacy, Hamamatsu University School of Medicine, Hamamatsu
| | - H Watanabe
- Department of Clinical Pharmacology & Therapeutics, Hamamatsu University School of Medicine, Hamamatsu
| | - N Namiki
- Departments of Pharmacy Practice & Science, School of Pharmaceutical Sciences, University of Shizuoka
| | - S Uchida
- Departments of Pharmacy Practice & Science, School of Pharmaceutical Sciences, University of Shizuoka;,
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12
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Tsutsui Y, Hasegawa A, Uchida S, Terao K, Takei S, Yokoyama A, Sato A, Kabata Y, Hayashi R, Fujikawa H, Togashi K, Abe R. Dermatitis herpetiformis triggered by iodine contrast media. J Eur Acad Dermatol Venereol 2021; 36:e348-e350. [PMID: 34897819 DOI: 10.1111/jdv.17860] [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: 11/29/2022]
Affiliation(s)
- Y Tsutsui
- Division of Dermatology, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - A Hasegawa
- Division of Dermatology, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - S Uchida
- Division of Dermatology, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - K Terao
- Division of Dermatology, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - S Takei
- Division of Dermatology, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - A Yokoyama
- Division of Dermatology, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - A Sato
- Division of Dermatology, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Y Kabata
- Division of Dermatology, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - R Hayashi
- Division of Dermatology, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - H Fujikawa
- Division of Dermatology, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | | | - R Abe
- Division of Dermatology, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
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13
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Ideta S, Johnston S, Yoshida T, Tanaka K, Mori M, Anzai H, Ino A, Arita M, Namatame H, Taniguchi M, Ishida S, Takashima K, Kojima KM, Devereaux TP, Uchida S, Fujimori A. Hybridization of Bogoliubov Quasiparticles between Adjacent CuO_{2} Layers in the Triple-Layer Cuprate Bi_{2}Sr_{2}Ca_{2}Cu_{3}O_{10+δ} Studied by Angle-Resolved Photoemission Spectroscopy. Phys Rev Lett 2021; 127:217004. [PMID: 34860085 DOI: 10.1103/physrevlett.127.217004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/10/2020] [Revised: 07/08/2021] [Accepted: 10/20/2021] [Indexed: 06/13/2023]
Abstract
Hybridization of Bogoliubov quasiparticles (BQPs) between the CuO_{2} layers in the triple-layer cuprate high-temperature superconductor Bi_{2}Sr_{2}Cu_{2}Cu_{3}O_{10+δ} is studied by angle-resolved photoemission spectroscopy (ARPES). In the superconducting state, an anticrossing gap opens between the outer- and inner-BQP bands, which we attribute primarily to interlayer single-particle hopping with possible contributions from interlayer Cooper pairing. We find that the d-wave superconducting gap of both BQP bands smoothly develops with momentum without an abrupt jump in contrast to a previous ARPES study. Hybridization between the BQPs also gradually increases in going from the off nodal to the antinodal region, which is explained by the momentum dependence of the interlayer single-particle hopping. As possible mechanisms for the enhancement of the superconducting transition temperature, the hybridization between the BQPs as well as the combination of phonon modes of the triple CuO_{2} layers and spin fluctuations represented by a four-well model are discussed.
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Affiliation(s)
- S Ideta
- Department of Physics, University of Tokyo, Bunkyo-ku, Tokyo 113-0033, Japan
- UVSOR-III Synchrotron, Institute for Molecular Science, Okazaki 444-8585, Japan
| | - S Johnston
- Department of Physics and Astronomy, The University of Tennessee, Knoxville, Tennessee 37996, USA
| | - T Yoshida
- Department of Human and Environmental studies, Kyoto University, Sakyo-ku, Kyoto 606-8501, Japan
| | - K Tanaka
- UVSOR-III Synchrotron, Institute for Molecular Science, Okazaki 444-8585, Japan
| | - M Mori
- Advanced Science Research Center, Japan Atomic Energy Agency, Tokai 319-1195, Japan
| | - H Anzai
- Graduate School of Engineering, Osaka Prefecture University, Sakai 599-8531, Japan
- Graduate School of Science, Hiroshima University, Higashi-Hiroshima 739-8526, Japan
| | - A Ino
- Graduate School of Science, Hiroshima University, Higashi-Hiroshima 739-8526, Japan
- Hiroshima Synchrotron Radiation Center, Hiroshima University, Higashi-Hiroshima 739-0046, Japan
- Department of Education and Creation Engineering, Kurume Institute of Technology, Fukuoka 2286-66, Japan
| | - M Arita
- Hiroshima Synchrotron Radiation Center, Hiroshima University, Higashi-Hiroshima 739-0046, Japan
| | - H Namatame
- Hiroshima Synchrotron Radiation Center, Hiroshima University, Higashi-Hiroshima 739-0046, Japan
| | - M Taniguchi
- Graduate School of Science, Hiroshima University, Higashi-Hiroshima 739-8526, Japan
- Hiroshima Synchrotron Radiation Center, Hiroshima University, Higashi-Hiroshima 739-0046, Japan
| | - S Ishida
- Department of Physics, University of Tokyo, Bunkyo-ku, Tokyo 113-0033, Japan
- National Institute of Advanced Industrial Science and Technology, Tsukuba, Ibaraki 305-8568, Japan
| | - K Takashima
- Department of Physics, University of Tokyo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - K M Kojima
- Department of Physics, University of Tokyo, Bunkyo-ku, Tokyo 113-0033, Japan
- J-PARC Center and Institute of Materials Structure Science, KEK, Tsukuba, Ibaraki 305-0801, Japan
- Centre for Molecular and Materials Science, TRIUMF, 4004 Vancouver, Canada
| | - T P Devereaux
- Geballe Laboratory for Advanced Materials, Stanford University, Stanford, California 94305, USA
- Stanford Institute for Materials and Energy Sciences, SLAC National Laboratory and Stanford University, Menlo Park, California 94025, USA
- Department of Materials Science and Engineering Stanford University, Stanford, California 94305, USA
| | - S Uchida
- Department of Physics, University of Tokyo, Bunkyo-ku, Tokyo 113-0033, Japan
- National Institute of Advanced Industrial Science and Technology, Tsukuba, Ibaraki 305-8568, Japan
| | - A Fujimori
- Department of Physics, University of Tokyo, Bunkyo-ku, Tokyo 113-0033, Japan
- Department of Applied Physics, Waseda University, Shinjuku-ku, Tokyo 169-8555, Japan
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14
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Wang S, Choubey P, Chong YX, Chen W, Ren W, Eisaki H, Uchida S, Hirschfeld PJ, Davis JCS. Scattering interference signature of a pair density wave state in the cuprate pseudogap phase. Nat Commun 2021; 12:6087. [PMID: 34667154 PMCID: PMC8526682 DOI: 10.1038/s41467-021-26028-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2021] [Accepted: 09/09/2021] [Indexed: 11/21/2022] Open
Abstract
An unidentified quantum fluid designated the pseudogap (PG) phase is produced by electron-density depletion in the CuO2 antiferromagnetic insulator. Current theories suggest that the PG phase may be a pair density wave (PDW) state characterized by a spatially modulating density of electron pairs. Such a state should exhibit a periodically modulating energy gap [Formula: see text] in real-space, and a characteristic quasiparticle scattering interference (QPI) signature [Formula: see text] in wavevector space. By studying strongly underdoped Bi2Sr2CaDyCu2O8 at hole-density ~0.08 in the superconductive phase, we detect the 8a0-periodic [Formula: see text] modulations signifying a PDW coexisting with superconductivity. Then, by visualizing the temperature dependence of this electronic structure from the superconducting into the pseudogap phase, we find the evolution of the scattering interference signature [Formula: see text] that is predicted specifically for the temperature dependence of an 8a0-periodic PDW. These observations are consistent with theory for the transition from a PDW state coexisting with d-wave superconductivity to a pure PDW state in the Bi2Sr2CaDyCu2O8 pseudogap phase.
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Affiliation(s)
- Shuqiu Wang
- Clarendon Laboratory, University of Oxford, Oxford, UK
| | - Peayush Choubey
- Institut für Theoretische Physik III, Ruhr-Universität Bochum, Bochum, Germany
- Department of Physics, Indian Institute of Technology (Indian School of Mines), Dhanbad, Jharkhand, India
| | - Yi Xue Chong
- LASSP, Department of Physics, Cornell University, Ithaca, NY, USA
| | - Weijiong Chen
- Clarendon Laboratory, University of Oxford, Oxford, UK
| | - Wangping Ren
- Clarendon Laboratory, University of Oxford, Oxford, UK
| | - H Eisaki
- Institute of Advanced Industrial Science and Tech., Tsukuba, Ibaraki, Japan
| | - S Uchida
- Institute of Advanced Industrial Science and Tech., Tsukuba, Ibaraki, Japan
| | | | - J C Séamus Davis
- Clarendon Laboratory, University of Oxford, Oxford, UK.
- LASSP, Department of Physics, Cornell University, Ithaca, NY, USA.
- Department of Physics, University College Cork, Cork, Ireland.
- Max-Planck Institute for Chemical Physics of Solids, Dresden, Germany.
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15
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Hamazaki N, Kamiya K, Nozaki K, Ichikawa T, Yamashita M, Uchida S, Noda T, Maekawa E, Meguro K, Yamaoka-Tojo M, Matsunaga A, Ako J. Associations between kidney function and outcomes following cardiac rehabilitation in patients with heart failure. Eur Heart J 2021. [DOI: 10.1093/eurheartj/ehab724.2698] [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
Kidney dysfunction is considered one of the most prevalent comorbidities in patients with heart failure (HF). A combination of HF and kidney dysfunction is associated with peripheral muscle impairment, exercise intolerance, and poor prognosis. Conversely, cardiac rehabilitation (CR) for HF patients has been recognized to improve their clinical outcomes. However, the impact of kidney function on responses to CR in patients with HF is still unclear.
Purpose
This study aimed to investigate the associations between baseline kidney function and outcomes following CR including changes in physical function and prognosis in HF patients.
Methods
We reviewed a total of 3,727 patients who were admitted for HF treatment and underwent comprehensive CR during hospitalization. In addition to clinical characteristics, we assessed the kidney function using estimated glomerular filtration rate (eGFR) based on serum creatinine level at hospital discharge as baseline. The quadriceps strength (QS) and 6-minute walk distance (6MWD) were measured as muscle strength and functional capacity, respectively, at baseline. We also remeasured these parameter 5 months after hospital discharge in patients who participated in outpatient CR. The association between participation in outpatient CR and composite outcome of all-cause death and/or unplanned readmission were assessed using the multivariate Cox proportional hazard models in a subgroup of baseline eGFR. We also compared the changes in QS and 6MWD (ΔQS and Δ6MWD) between the eGFR stages.
Results
During the median follow-up period of 1.9 years, all-cause death/readmission occurred in 1604 (43.0%) patients, and their rate of incidence was 20.9/100 person-years. Out of studied patients, 1,585 (42.5%) patients participated in outpatient CR that was significantly associated with lower incidences of all-cause clinical events in patients with both eGFR ≥60 (adjusted hazard ratio [HR]: 0.73, 95% confidence interval [CI]: 0.60–0.89, P=0.002) and eGFR <60 (adjusted HR: 0.88, 95% CI: 0.78–0.99, P=0.045), but those with an eGFR <60 showed significant interaction between CR participation and adverse clinical events (interaction P<0.035, Figure 1). Among the outpatient CR participants, QS and 6MWD were significantly higher after 5-month CR than those at baseline (P<0.001, respectively), but the low baseline eGFR correlated with low ΔQS and Δ6MWD (trend P<0.001, respectively) even after adjustment for clinical confounding factors (Figure 2).
Conclusions
Although the outcomes following CR is affected by baseline kidney function, outpatient CR is significantly associated with the positive change in physical function and better prognosis in HF patients with low kidney function.
Funding Acknowledgement
Type of funding sources: None.
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Affiliation(s)
- N Hamazaki
- Kitasato University Hospital, Sagamihara, Japan
| | - K Kamiya
- Kitasato University School of Allied Health Sciences, Department of Rehabilitation, Sagamihara, Japan
| | - K Nozaki
- Kitasato University Hospital, Sagamihara, Japan
| | - T Ichikawa
- Kitasato University Hospital, Sagamihara, Japan
| | - M Yamashita
- Kitasato University Graduate School of Medical Sciences, Department of Rehabilitation Sciences, Sagamihara, Japan
| | - S Uchida
- Kitasato University Graduate School of Medical Sciences, Department of Rehabilitation Sciences, Sagamihara, Japan
| | - T Noda
- Kitasato University Graduate School of Medical Sciences, Department of Rehabilitation Sciences, Sagamihara, Japan
| | - E Maekawa
- Kitasato University School of Medicine, Department of Cardiovascular Medicine, Sagamihara, Japan
| | - K Meguro
- Kitasato University School of Medicine, Department of Cardiovascular Medicine, Sagamihara, Japan
| | - M Yamaoka-Tojo
- Kitasato University School of Allied Health Sciences, Department of Rehabilitation, Sagamihara, Japan
| | - A Matsunaga
- Kitasato University School of Allied Health Sciences, Department of Rehabilitation, Sagamihara, Japan
| | - J Ako
- Kitasato University School of Medicine, Department of Cardiovascular Medicine, Sagamihara, Japan
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16
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Tanaka S, Uchida S, Hakamata A, Miyakawa S, Odagiri K, Inui N, Watanabe H, Namiki N. Simultaneous LC-MS analysis of plasma concentrations of sildenafil, tadalafil, bosentan, ambrisentan, and macitentan in patients with pulmonary arterial hypertension. Pharmazie 2021; 75:236-239. [PMID: 32539916 DOI: 10.1691/ph.2020.0021] [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] [Subscribe] [Scholar Register] [Indexed: 09/29/2022]
Abstract
Phosphodiesterase-5 (PDE-5) inhibitors and endothelin receptor antagonists (ERAs) are standard therapies for pulmonary arterial hypertension (PAH). The inter-individual variability of these pharmacokinetics is reported remarkably large, and therapeutic drug monitoring (TDM) can be useful to improve the likelihood of the desired therapeutic and safety outcomes. This study aimed to develop a LC-MS method to determine the concentrations of five PAH drugs (PDE-5 inhibitors: sildenafil and tadalafil, ERAs: bosentan, macitentan, and ambrisentan) from plasma samples using a simple process followed by a single mass spectrometric run, and to validate this approach through pharmacokinetic analyses in patients. A solid extraction method was used for sample preparation of the drugs from human plasma. The total run time for a single injection was within 10 min. The calibration curves for all drugs were linear, and the lower limits of quantitation were 1 (sildenafil), 2 (tadalafil), 5 (ambrisentan), and 10 ng/mL (bosentan, macitentan). The accuracy and precision values suggested that the assay had high accuracy and reliability. To prove the utility of this method, the plasma concentrations of the five PAH drugs were determined after their oral administration to nine PAH patients.
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Affiliation(s)
- S Tanaka
- Department of Pharmacy Practice & Science, Hamamatsu University School of Medicine, Japan
| | - S Uchida
- Department of Pharmacy Practice & Science, Hamamatsu University School of Medicine, Japan;,
| | - A Hakamata
- School of Pharmaceutical Sciences, University of Shizuoka, Department of Clinical Pharmacology & Therapeutics, Hamamatsu University School of Medicine, Japan
| | - S Miyakawa
- School of Pharmaceutical Sciences, University of Shizuoka, Department of Clinical Pharmacology & Therapeutics, Hamamatsu University School of Medicine, Japan
| | - K Odagiri
- School of Pharmaceutical Sciences, University of Shizuoka, Department of Clinical Pharmacology & Therapeutics, Hamamatsu University School of Medicine, Japan
| | - N Inui
- School of Pharmaceutical Sciences, University of Shizuoka, Department of Clinical Pharmacology & Therapeutics, Hamamatsu University School of Medicine, Japan
| | - H Watanabe
- School of Pharmaceutical Sciences, University of Shizuoka, Department of Clinical Pharmacology & Therapeutics, Hamamatsu University School of Medicine, Japan
| | - N Namiki
- Department of Pharmacy Practice & Science, Hamamatsu University School of Medicine, Japan
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17
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Noda T, Kamiya K, Hamazaki N, Nozaki K, Ichikawa T, Yamashita M, Uchida S, Maekawa E, Yamaoka-Tojo M, Matsunaga A, Ako J. Associations of severity of liver damages with physical function and prognosis in patients with heart failure. Eur J Prev Cardiol 2021. [DOI: 10.1093/eurjpc/zwab061.034] [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]
Abstract
Abstract
Funding Acknowledgements
Type of funding sources: None.
Introduction
Heart failure (HF) and liver dysfunction often coexist because of complex cardiohepatic interactions, which adversely affects prognosis. However, the association between liver dysfunction and physical dysfunction, and between coexistence of both and prognosis in HF patients remains unclear.
Purpose
We evaluated the associations of severity of liver damage and physical function and prognosis in patients with HF.
Methods
The study population consisted of 895 patients with HF (mean age, 69.4 ± 14.2 years) who underwent liver function test using model for end-stage liver disease excluding international normalized ratio (MELD-XI) score and physical function test (grip strength, leg strength, gait speed, and 6-minute walking distance [6MWD]). The associations between MELD-XI score and physical function were assessed by multivariate linear regression model analysis. Moreover, we investigated the prognostic value of coexistence of liver dysfunction and physical dysfunction. The endpoint was all-cause mortality.
Results
After adjusting for covariates, MELD-XI score was independently associated with lower grip strength, leg strength, gait speed, and 6MWD (P < 0.001). In addition, hierarchical multivariate linear regression analysis revealed that adding MELD-XI scores or BNP explained additional variance in the physical function measures. The MELD-XI score added to the clinical model was significantly more predictive of physical function (grip strength, change in F: 27.105, P < 0.001; leg strength, change in F: 33.980, P < 0.001; gait speed, change in F: 22.826, P < 0.001; 6MWD, change in F: 59.193, P < 0.001) than BNP added to the clinical model. Eighty-six deaths occurred over a median follow-up period of 1.67 years (interquartile range: 0.62 – 3.04). Patients with high MELD-XI score and reduced physical function were found to have significantly higher mortality risk even after adjusting for several covariates (grip strength, hazard ratio [HR] = 3.80 [95% confidence interval (CI) = 2.04 – 7.08], P < 0.001; leg strength, HR = 4.65 [95% CI = 2.47 - 8.75], P < 0.001 and gait speed, HR = 2.49 [95% CI = 1.43 - 4.33], P = 0.001; 6MWD, HR = 5.48 [95% CI = 2.88 - 10.41], P < 0.001).
Conclusions
Liver dysfunction was correlated with reduced physical function. Moreover, the coexistence of lower physical function and liver dysfunction considerably affected prognosis in patients with HF.
Abstract Figure. Kaplan–Meier survival curves
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Affiliation(s)
- T Noda
- Kitasato University Graduate School of Medical Sciences, Sagamihara, Japan
| | - K Kamiya
- Kitasato University Graduate School of Medical Sciences, Sagamihara, Japan
| | - N Hamazaki
- Kitasato University Hospital, Department of Rehabilitation, Sagamihara, Japan
| | - K Nozaki
- Kitasato University Hospital, Department of Rehabilitation, Sagamihara, Japan
| | - T Ichikawa
- Kitasato University Hospital, Department of Rehabilitation, Sagamihara, Japan
| | - M Yamashita
- Kitasato University Graduate School of Medical Sciences, Sagamihara, Japan
| | - S Uchida
- Kitasato University Graduate School of Medical Sciences, Sagamihara, Japan
| | - E Maekawa
- Kitasato University School of Medicine, Department of Cardiovascular Medicine, Sagamihara, Japan
| | - M Yamaoka-Tojo
- Kitasato University Graduate School of Medical Sciences, Sagamihara, Japan
| | - A Matsunaga
- Kitasato University Graduate School of Medical Sciences, Sagamihara, Japan
| | - J Ako
- Kitasato University School of Medicine, Department of Cardiovascular Medicine, Sagamihara, Japan
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18
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Mizuno T, Chen A, Mamada K, Takahashi A, Uchida S, Uechi M. Analysis of mitral valve morphology in dogs undergoing mitral valve repair with three-dimensional transesophageal echocardiography. J Vet Cardiol 2021; 34:64-72. [PMID: 33592560 DOI: 10.1016/j.jvc.2021.01.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2020] [Revised: 12/27/2020] [Accepted: 01/12/2021] [Indexed: 10/22/2022]
Abstract
INTRODUCTION Information about real-time three-dimensional (3D) transesophageal echocardiography (TEE) for the evaluation of canine mitral valve morphology is lacking in veterinary medicine. OBJECTIVES To evaluate the feasibility of 3D TEE for the evaluation of canine mitral valves and whether there was a difference in mitral valve morphology between American College of Veterinary Internal Medicine (ACVIM) stages. ANIMALS Thirty-one dogs were evaluated, including nine dogs classified as ACVIM stage B2, 15 as stage C, and seven as stage D. MATERIALS AND METHODS Three-dimensional TEE was performed after anesthetic induction for mitral valve surgery, and the 3D geometry of the mitral valve apparatus was measured. RESULTS The intraclass correlation coefficient was good in both inter- and intraobserver analyses of the 3D measurements of mitral valve annulus geometry and excellent in both inter- and intraobserver analyses in the 3D measurements of mitral valve annular and leaflet sizes. Annulus height to commissural width ratio of stage D dogs showed significantly lower values than B2 dogs (B2: 14.2% [9.1-20.5%]; C: 10.6% [6.5-24.1%]; D: 9.5% [4.7-13.8%]). The aortic-mitral angle of stages C and D were significantly flatter than stage B2 (B2: 122.32 ± 9.39; C: 133.66 ± 8.43; D: 140.70 ± 10.70). CONCLUSIONS Real-time 3D echocardiography using TEE is a feasible method to evaluate the morphology of the mitral valve in dogs. The saddle shape of the mitral annulus and aortic-mitral angle were flatter in stage D. Further studies are required to understand the pathology of mitral valve disease in dogs.
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Affiliation(s)
- T Mizuno
- JASMINE Veterinary Cardiovascular Medical Center, 2-7-3 Nakagawa, Tsuzuki, Yokohama, Kanagawa, 224-0001, Japan.
| | - A Chen
- JASMINE Veterinary Cardiovascular Medical Center, 2-7-3 Nakagawa, Tsuzuki, Yokohama, Kanagawa, 224-0001, Japan
| | - K Mamada
- JASMINE Veterinary Cardiovascular Medical Center, 2-7-3 Nakagawa, Tsuzuki, Yokohama, Kanagawa, 224-0001, Japan
| | - A Takahashi
- JASMINE Veterinary Cardiovascular Medical Center, 2-7-3 Nakagawa, Tsuzuki, Yokohama, Kanagawa, 224-0001, Japan
| | - S Uchida
- JASMINE Veterinary Cardiovascular Medical Center, 2-7-3 Nakagawa, Tsuzuki, Yokohama, Kanagawa, 224-0001, Japan
| | - M Uechi
- JASMINE Veterinary Cardiovascular Medical Center, 2-7-3 Nakagawa, Tsuzuki, Yokohama, Kanagawa, 224-0001, Japan
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19
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Hamazaki N, Kamiya K, Nozaki K, Ichikawa T, Yamashita M, Uchida S, Tabata M, Maekawa E, Yamaoka-Tojo M, Matsunaga A, Ako J. Correlation between respiratory muscle weakness and frailty status as risk markers for prognosis in patients with cardiovascular disease. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.3106] [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
Respiratory muscle weakness (RMW), frequently observed in patients with cardiovascular disease (CVD), is documented as a predictor for exercise intolerance and poor prognosis. On the other hand, frailty is commonly associated with disease condition, leading to increased risk of morbidity and mortality. Although the developmental mechanism of RMW and frailty is partly similar, the relationship between these statuses remains unclear.
Purpose
We aimed to investigate the correlation between RMW and frailty and its impact on prognosis in patients with CVD.
Methods
We studied 771 consecutive patients (68.5±13.1 years, 256 females) who were hospitalized for CVD treatment and underwent cardiac rehabilitation during hospitalization. Patients who received thoracic surgery within the last 3 months or could not perform respiratory function test were excluded from this study. As patient characteristics, we obtained body mass index, comorbidity conditions, smoking history, blood examinations, echocardiographical variables, and lung function from medical database. The frailty status on admission was assessed using frailty score consisting of 5 items including gait speed, nutrition/shrinking, physical activity, forgetfulness, and emotions/exhaustion, and patients who had 3 items were defined as frailty. We also measured maximal inspiratory pressure (PImax) as respiratory muscle strength at hospital discharge, and RMW was defined with PImax <70% of predicted value. Primary end-point was all-cause clinical events including all-cause death and/or unplanned readmission after hospital discharge. We examined the prevalence of RMW and frailty and the correlation between these statuses. The relationships of RMW with the clinical events for each presence or absence of frailty were also investigated using multivariate Cox proportional hazard models.
Results
RMW and frailty were defined in 163 (33.5%) and 126 (28.7%) patients, respectively, and 95 patients (12.4%) among them showed an overlap of both statuses (Figure 1). Frailty was detected as a significant indicator of RMW after adjusting for confounding factors (adjusted odds ratio: 1.57, 95% CI: 1.12–2.19, P=0.009). Over the median follow-up periods of 1.2 years, all-cause clinical events occurred in 154 patients (20.0%). RMW was significantly and independently associated with increased incidence of all-cause clinical events in patients with both non-frailty (adjusted hazard ratio [HR]: 1.64, 95% CI: 1.09–2.46, P=0.017) and frailty (adjusted HR: 1.97, 95% CI: 1.14–3.42, P=0.015) even after adjusting for clinical confounding factors (Figure 2).
Conclusions
This study is the first to demonstrate that RMW correlated to frailty in patients with CVD, and 12.4% of patients had overlap status. Moreover, RMW was significantly associated with an increased risk of all-cause clinical events in patients with CVD and frailty.
Funding Acknowledgement
Type of funding source: Public grant(s) – National budget only. Main funding source(s): Japan Society for the Promotion of Science Grant-in-Aid
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Affiliation(s)
- N Hamazaki
- Kitasato University Hospital, Department of Rehabilitation, Sagamihara, Japan
| | - K Kamiya
- Kitasato University, Department of Rehabilitation, School of Allied Health Sciences, Sagamihara, Japan
| | - K Nozaki
- Kitasato University Hospital, Department of Rehabilitation, Sagamihara, Japan
| | - T Ichikawa
- Kitasato University Hospital, Department of Rehabilitation, Sagamihara, Japan
| | - M Yamashita
- Kitasato University Graduate School of Medical Sciences, Department of Rehabilitation Sciences, Sagamihara, Japan
| | - S Uchida
- Kitasato University Graduate School of Medical Sciences, Department of Rehabilitation Sciences, Sagamihara, Japan
| | - M Tabata
- Tokyo Professional University of Health Sciences, Department of Physical Therapy, School of Rehabilitation, Tokyo, Japan
| | - E Maekawa
- Kitasato University School of Medicine, Department of Cardiovascular Medicine, Sagamihara, Japan
| | - M Yamaoka-Tojo
- Kitasato University, Department of Rehabilitation, School of Allied Health Sciences, Sagamihara, Japan
| | - A Matsunaga
- Kitasato University, Department of Rehabilitation, School of Allied Health Sciences, Sagamihara, Japan
| | - J Ako
- Kitasato University School of Medicine, Department of Cardiovascular Medicine, Sagamihara, Japan
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20
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Nakamura Y, Yokoyama M, Yoshida S, Tanaka H, Kijima T, Ishioka J, Matsuoka Y, Saito K, Minami I, Yoshimoto T, Naito S, Ogawa Y, Yamada T, Uchida S, Fujii Y. Postoperative renal impairment and longitudinal change in renal function after adrenalectomy in patients with Cushing’s syndrome. EUR UROL SUPPL 2020. [DOI: 10.1016/s2666-1683(20)33195-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
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21
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Edkins SD, Kostin A, Fujita K, Mackenzie AP, Eisaki H, Uchida S, Sachdev S, Lawler MJ, Kim EA, Séamus Davis JC, Hamidian MH. Magnetic field-induced pair density wave state in the cuprate vortex halo. Science 2019; 364:976-980. [PMID: 31171694 DOI: 10.1126/science.aat1773] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2018] [Accepted: 05/15/2019] [Indexed: 11/02/2022]
Abstract
High magnetic fields suppress cuprate superconductivity to reveal an unusual density wave (DW) state coexisting with unexplained quantum oscillations. Although routinely labeled a charge density wave (CDW), this DW state could actually be an electron-pair density wave (PDW). To search for evidence of a field-induced PDW, we visualized modulations in the density of electronic states N(r) within the halo surrounding Bi2Sr2CaCu2O8 vortex cores. We detected numerous phenomena predicted for a field-induced PDW, including two sets of particle-hole symmetric N(r) modulations with wave vectors QP and 2Q P , with the latter decaying twice as rapidly from the core as the former. These data imply that the primary field-induced state in underdoped superconducting cuprates is a PDW, with approximately eight CuO2 unit-cell periodicity and coexisting with its secondary CDWs.
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Affiliation(s)
- S D Edkins
- Laboratory of Atomic and Solid State Physics, Department of Physics, Cornell University, Ithaca, NY 14853, USA.,Department of Applied Physics, Stanford University, Stanford, CA 94305, USA.,School of Physics and Astronomy, University of St. Andrews, Fife KY16 9SS, Scotland
| | - A Kostin
- Laboratory of Atomic and Solid State Physics, Department of Physics, Cornell University, Ithaca, NY 14853, USA
| | - K Fujita
- Laboratory of Atomic and Solid State Physics, Department of Physics, Cornell University, Ithaca, NY 14853, USA.,Condensed Matter Physics Department, Brookhaven National Laboratory, Upton, NY, USA
| | - A P Mackenzie
- School of Physics and Astronomy, University of St. Andrews, Fife KY16 9SS, Scotland.,Max-Planck Institute for Chemical Physics of Solids, D-01187 Dresden, Germany
| | - H Eisaki
- Institute of Advanced Industrial Science and Technology, Tsukuba, Ibaraki 305-8568, Japan
| | - S Uchida
- Department of Physics, University of Tokyo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Subir Sachdev
- Department of Physics, Harvard University, Cambridge, MA 02138, USA
| | - Michael J Lawler
- Laboratory of Atomic and Solid State Physics, Department of Physics, Cornell University, Ithaca, NY 14853, USA.,Department of Physics and Astronomy, Binghamton University, Binghamton, NY 13902, USA
| | - E-A Kim
- Laboratory of Atomic and Solid State Physics, Department of Physics, Cornell University, Ithaca, NY 14853, USA
| | - J C Séamus Davis
- Laboratory of Atomic and Solid State Physics, Department of Physics, Cornell University, Ithaca, NY 14853, USA. .,Condensed Matter Physics Department, Brookhaven National Laboratory, Upton, NY, USA.,Department of Physics, University College Cork, Cork T12R5C, Ireland.,Clarendon Laboratory, Oxford University, Oxford, OX1 3PU, UK
| | - M H Hamidian
- Laboratory of Atomic and Solid State Physics, Department of Physics, Cornell University, Ithaca, NY 14853, USA. .,Department of Physics, Harvard University, Cambridge, MA 02138, USA
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22
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Uchida S, Kamiya K, Hamazaki N, Matsuzawa R, Nozaki K, Ichikawa T, Nakamura T, Yamashita M, Kootaka Y, Maekawa E, Yamaoka-Tojo M, Matsunaga A, Masuda T, Ako J. P6331Influence of dynapenia and obesity on prognoses of elderly heart failure patients. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz746.0928] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
In elderly people, a decline in activities of daily living is more closely associated with low muscle strength (dynapenia) than with low muscle mass. Moreover, the combination of low muscle strength and obesity (dynapenic obesity) is associated with a higher risk of mortality than dynapenia or obesity alone, but its influence on prognosis is still unknown in elderly heart failure (HF) patients. To clarify these relationships may contribute to the development of rehabilitation programs for elderly HF patients and the improvement their prognoses in the future.
Purpose
We aimed to investigate the influence of dynapenia and obesity on prognoses of elderly HF patients.
Methods
We evaluated 1006 elderly HF patients aged ≥65 years (76.5±6.9 years, 579 males) who were admitted to our hospital and participated in an inpatient cardiac rehabilitation program. We assessed patients' characteristics, including body mass index (BMI) and handgrip strength during hospitalization. Patients with low handgrip strength (<26 kg and <18 kg in males and females, respectively) and high BMI (≥25 kg/m2) were considered to have dynapenia and obesity, respectively. Moreover, patients fulfilling the above two criteria (dynapenia, obesity) were considered to have dynapenic obesity. Patients were divided into four groups: normal, dynapenia only, obesity only, and dynapenic obesity. We compared survival rates among the four groups using the Kaplan-Meier method and log-rank test. To identify predictors for all-cause mortality, we performed Cox regression analysis.
Results
During the 8-year follow-up period, 228 patients (21.2%) died. Eight-year cumulative incidences of mortality were 35.4%, 26.0%, 62.6%, and 33.1% in the normal, obesity only, dynapenia only, and dynapenic obesity groups, respectively. Significantly lower survival rates were observed in the dynapenia only group than in the other 3 groups (log-rank: 28.893, P<0.001). Cox regression analysis, after adjusting for age and sex, showed significantly poor prognosis in the dyanapenia only group than in the other 3 groups (normal group, hazard ratio [HR] = 0.684, 95% confidence interval [CI] = 0.488–0.959, P=0.028; obesity only group, HR = 0.330, 95% CI = 0.182–0.598, P<0.001; dynapenic obesity group, HR = 0.390, 95% CI = 0.206–0.739, P=0.004).
Conclusion
Elderly HF patients with dynapenia alone had poor prognoses. Obesity may have protective effects on the survival of dynapenia patients with HF.
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Affiliation(s)
- S Uchida
- Kitasato University Graduate School of Medical Sciences, Sagamihara, Japan
| | - K Kamiya
- Kitasato University, Department of Rehabilitation, School of Allied Health Sciences, Sagamihara, Japan
| | - N Hamazaki
- Kitasato University Hospital, Department of Rehabilitation, Sagamihara, Japan
| | - R Matsuzawa
- Kitasato University Hospital, Department of Rehabilitation, Sagamihara, Japan
| | - K Nozaki
- Kitasato University Hospital, Department of Rehabilitation, Sagamihara, Japan
| | - T Ichikawa
- Kitasato University Hospital, Department of Rehabilitation, Sagamihara, Japan
| | - T Nakamura
- Kitasato University Graduate School of Medical Sciences, Sagamihara, Japan
| | - M Yamashita
- Kitasato University Graduate School of Medical Sciences, Sagamihara, Japan
| | - Y Kootaka
- Kitasato University Graduate School of Medical Sciences, Sagamihara, Japan
| | - E Maekawa
- Kitasato University School of Medicine, Department of Cardiovascular Medicine, Sagamihara, Japan
| | - M Yamaoka-Tojo
- Kitasato University, Department of Rehabilitation, School of Allied Health Sciences, Sagamihara, Japan
| | - A Matsunaga
- Kitasato University, Department of Rehabilitation, School of Allied Health Sciences, Sagamihara, Japan
| | - T Masuda
- Kitasato University, Department of Rehabilitation, School of Allied Health Sciences, Sagamihara, Japan
| | - J Ako
- Kitasato University School of Medicine, Department of Cardiovascular Medicine, Sagamihara, Japan
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23
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Taniguchi T, Mochihashi D, Nagai T, Uchida S, Inoue N, Kobayashi I, Nakamura T, Hagiwara Y, Iwahashi N, Inamura T. Survey on frontiers of language and robotics. Adv Robot 2019. [DOI: 10.1080/01691864.2019.1632223] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- T. Taniguchi
- Department of Information Science and Engineering, Ritsumeikan University, Kusatsu, Japan
| | - D. Mochihashi
- The Institute of Statistical Mathematics, Tachikawa, Japan
- SOKENDAI (The Graduate University for Advanced Studies), Tokyo, Japan
| | - T. Nagai
- Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka, Japan
| | - S. Uchida
- Faculty of Languages and Cultures, Kyushu University, Fukuoka, Japan
| | - N. Inoue
- Graduate School of Information Sciences, Tohoku University, Sendai, Japan
- RIKEN Center for Advanced Intelligence Project, Chuo-ku, Japan
| | - I. Kobayashi
- Advanced Sciences, Graduate School of Humanities and Sciences, Ochanomizu University, Tokyo, Japan
| | - T. Nakamura
- Department of Mechanical Engineering and Intelligent Systems, The University of Electro-Communications, Chofu, Japan
| | - Y. Hagiwara
- Department of Information Science and Engineering, Ritsumeikan University, Kusatsu, Japan
| | - N. Iwahashi
- Department of Information and Communication Engineering, Okayama Prefectural University, Okayama, Japan
| | - T. Inamura
- SOKENDAI (The Graduate University for Advanced Studies), Tokyo, Japan
- National Institute of Informatics, Tokyo, Japan
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24
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Zhang Y, Mesaros A, Fujita K, Edkins SD, Hamidian MH, Ch'ng K, Eisaki H, Uchida S, Davis JCS, Khatami E, Kim EA. Machine learning in electronic-quantum-matter imaging experiments. Nature 2019; 570:484-490. [PMID: 31217587 DOI: 10.1038/s41586-019-1319-8] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2018] [Accepted: 04/08/2019] [Indexed: 11/09/2022]
Abstract
For centuries, the scientific discovery process has been based on systematic human observation and analysis of natural phenomena1. Today, however, automated instrumentation and large-scale data acquisition are generating datasets of such large volume and complexity as to defy conventional scientific methodology. Radically different scientific approaches are needed, and machine learning (ML) shows great promise for research fields such as materials science2-5. Given the success of ML in the analysis of synthetic data representing electronic quantum matter (EQM)6-16, the next challenge is to apply this approach to experimental data-for example, to the arrays of complex electronic-structure images17 obtained from atomic-scale visualization of EQM. Here we report the development and training of a suite of artificial neural networks (ANNs) designed to recognize different types of order hidden in such EQM image arrays. These ANNs are used to analyse an archive of experimentally derived EQM image arrays from carrier-doped copper oxide Mott insulators. In these noisy and complex data, the ANNs discover the existence of a lattice-commensurate, four-unit-cell periodic, translational-symmetry-breaking EQM state. Further, the ANNs determine that this state is unidirectional, revealing a coincident nematic EQM state. Strong-coupling theories of electronic liquid crystals18,19 are consistent with these observations.
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Affiliation(s)
- Yi Zhang
- Department of Physics, Cornell University, Ithaca, NY, USA
| | - A Mesaros
- Department of Physics, Cornell University, Ithaca, NY, USA.,Laboratoire de Physique des Solides, Université Paris-Sud, CNRS, Orsay, France
| | - K Fujita
- Condensed Matter Physics and Materials Science Department, Brookhaven National Laboratory, Upton, NY, USA
| | - S D Edkins
- Department of Physics, Cornell University, Ithaca, NY, USA.,Department of Applied Physics, Stanford University, Stanford, CA, USA
| | - M H Hamidian
- Department of Physics, Cornell University, Ithaca, NY, USA.,Department of Physics, Harvard University, Cambridge, MA, USA
| | - K Ch'ng
- Department of Physics and Astronomy, San Jose State University, San Jose, CA, USA
| | - H Eisaki
- National Institute of Advanced Industrial Science and Technology, Tsukuba, Japan
| | - S Uchida
- National Institute of Advanced Industrial Science and Technology, Tsukuba, Japan.,Department of Physics, University of Tokyo, Tokyo, Japan
| | - J C Séamus Davis
- Department of Physics, Cornell University, Ithaca, NY, USA.,Condensed Matter Physics and Materials Science Department, Brookhaven National Laboratory, Upton, NY, USA.,Department of Physics, University College Cork, Cork, Ireland.,Clarendon Laboratory, University of Oxford, Oxford, UK
| | - Ehsan Khatami
- Department of Physics and Astronomy, San Jose State University, San Jose, CA, USA
| | - Eun-Ah Kim
- Department of Physics, Cornell University, Ithaca, NY, USA.
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25
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Li WM, Zhao JF, Cao LP, Hu Z, Huang QZ, Wang XC, Liu Y, Zhao GQ, Zhang J, Liu QQ, Yu RZ, Long YW, Wu H, Lin HJ, Chen CT, Li Z, Gong ZZ, Guguchia Z, Kim JS, Stewart GR, Uemura YJ, Uchida S, Jin CQ. Superconductivity in a unique type of copper oxide. Proc Natl Acad Sci U S A 2019; 116:12156-12160. [PMID: 31109998 PMCID: PMC6589659 DOI: 10.1073/pnas.1900908116] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
The mechanism of superconductivity in cuprates remains one of the big challenges of condensed matter physics. High-T c cuprates crystallize into a layered perovskite structure featuring copper oxygen octahedral coordination. Due to the Jahn Teller effect in combination with the strong static Coulomb interaction, the octahedra in high-T c cuprates are elongated along the c axis, leading to a 3dx 2-y 2 orbital at the top of the band structure wherein the doped holes reside. This scenario gives rise to 2D characteristics in high-T c cuprates that favor d-wave pairing symmetry. Here, we report superconductivity in a cuprate Ba2CuO4-y , wherein the local octahedron is in a very exceptional compressed version. The Ba2CuO4-y compound was synthesized at high pressure at high temperatures and shows bulk superconductivity with critical temperature (T c ) above 70 K at ambient conditions. This superconducting transition temperature is more than 30 K higher than the T c for the isostructural counterparts based on classical La2CuO4 X-ray absorption measurements indicate the heavily doped nature of the Ba2CuO4-y superconductor. In compressed octahedron, the 3d3z 2-r 2 orbital will be lifted above the 3dx 2-y 2 orbital, leading to significant 3D nature in addition to the conventional 3dx 2-y 2 orbital. This work sheds important light on advancing our comprehensive understanding of the superconducting mechanism of high T c in cuprate materials.
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Affiliation(s)
- W M Li
- Institute of Physics, Chinese Academy of Sciences, 100190 Beijing, China
- School of Physics, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 100190 Beijing, China
- Materials Research Lab at Songshan Lake, 523808 Dongguan, China
| | - J F Zhao
- Institute of Physics, Chinese Academy of Sciences, 100190 Beijing, China
- School of Physics, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 100190 Beijing, China
| | - L P Cao
- Institute of Physics, Chinese Academy of Sciences, 100190 Beijing, China
- School of Physics, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 100190 Beijing, China
| | - Z Hu
- Max Planck Institute for Chemical Physics of Solids, Nöthnitzer Straβe 40, 01187 Dresden, Germany
| | - Q Z Huang
- NIST Center for Neutron Research, Gaithersburg, MD 20899
| | - X C Wang
- Institute of Physics, Chinese Academy of Sciences, 100190 Beijing, China
- School of Physics, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 100190 Beijing, China
- Materials Research Lab at Songshan Lake, 523808 Dongguan, China
| | - Y Liu
- Institute of Physics, Chinese Academy of Sciences, 100190 Beijing, China
- School of Physics, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 100190 Beijing, China
| | - G Q Zhao
- Institute of Physics, Chinese Academy of Sciences, 100190 Beijing, China
- School of Physics, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 100190 Beijing, China
| | - J Zhang
- Institute of Physics, Chinese Academy of Sciences, 100190 Beijing, China
- School of Physics, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 100190 Beijing, China
| | - Q Q Liu
- Institute of Physics, Chinese Academy of Sciences, 100190 Beijing, China
- School of Physics, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 100190 Beijing, China
| | - R Z Yu
- Institute of Physics, Chinese Academy of Sciences, 100190 Beijing, China
- School of Physics, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 100190 Beijing, China
- Materials Research Lab at Songshan Lake, 523808 Dongguan, China
| | - Y W Long
- Institute of Physics, Chinese Academy of Sciences, 100190 Beijing, China
- School of Physics, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 100190 Beijing, China
- Materials Research Lab at Songshan Lake, 523808 Dongguan, China
| | - H Wu
- NIST Center for Neutron Research, Gaithersburg, MD 20899
| | - H J Lin
- National Synchrotron Radiation Research Center, 30076 Hsinchu, Taiwan
| | - C T Chen
- National Synchrotron Radiation Research Center, 30076 Hsinchu, Taiwan
| | - Z Li
- School of Materials Science and Engineering, Nanjing University of Science and Technology, 210094 Nanjing, China
| | - Z Z Gong
- Department of Physics, Columbia University, New York, NY 10027
| | - Z Guguchia
- Department of Physics, Columbia University, New York, NY 10027
| | - J S Kim
- Department of Physics, University of Florida, Gainesville, FL 32611
| | - G R Stewart
- Department of Physics, University of Florida, Gainesville, FL 32611
| | - Y J Uemura
- Department of Physics, Columbia University, New York, NY 10027
| | - S Uchida
- Institute of Physics, Chinese Academy of Sciences, 100190 Beijing, China
- Department of Physics, University of Tokyo, 113-0033 Tokyo, Japan
| | - C Q Jin
- Institute of Physics, Chinese Academy of Sciences, 100190 Beijing, China;
- School of Physics, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 100190 Beijing, China
- Materials Research Lab at Songshan Lake, 523808 Dongguan, China
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26
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Hoshi Y, Hasegawa T, Yamagishi N, Mizokami M, Sugiyama M, Matsubayashi K, Uchida S, Nagai T, Satake M. Optimal titer of anti-HBs in blood components derived from donors with anti-HBc. Transfusion 2019; 59:2602-2611. [PMID: 31168835 DOI: 10.1111/trf.15393] [Citation(s) in RCA: 7] [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] [Received: 01/29/2019] [Revised: 04/17/2019] [Accepted: 04/28/2019] [Indexed: 12/21/2022]
Abstract
BACKGROUND The ultimate strategy to cope with transfusion-transmitted hepatitis B virus (HBV) infection caused by transfusion of blood from donors with historical HBV infection is to reject all donors having anti-HBV core antigen (anti-HBc). However, this strategy would result in a huge loss of blood donors and subsequent blood inventory collapse. On the other hand, anti-HBc-positive blood is reportedly not infectious when containing more than 100 mIU/mL of anti-HBV surface antigen (anti-HBs). STUDY DESIGN AND METHODS In Japan, anti-HBc-positive blood has been used for transfusion if it contained 200 mIU/mL or more of anti-HBs. First, to verify the screening policy, clinical outcomes for transfusion of such blood were analyzed for the 2008-2012 period. Second, human hepatocyte-repopulated severe combined immunodeficiency mice were inoculated with HBV preincubated with varying doses of anti-HBs, then viremic status was followed. The effects of anti-HBs across different HBV genotypes were also investigated. RESULTS Twenty-three transfusion-transmitted HBV infections related to anti-HBc-positive blood components were identified. None of the blood responsible for these cases contained 200 mIU/mL or more of anti-HBs. When 100 μL of plasma containing 104 copies of HBV and 20 mIU of anti-HBs was injected into severe combined immunodeficiency mice, no viremia was detected within 13 weeks. Genotype C anti-HBs was capable of total inhibition of genotype A HBV replication, whereas genotype A anti-HBs inhibited genotype C HBV to a lesser extent. CONCLUSION Anti-HBc-positive blood containing 200 mIU/mL or more of anti-HBs appears safe as a transfusion component. HBV vaccination seems effective between HBV genotypes A and C.
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Affiliation(s)
- Yuji Hoshi
- Central Blood Institute, Japanese Red Cross Blood Service Headquarters, Tokyo, Japan
| | - Takashi Hasegawa
- Central Blood Institute, Japanese Red Cross Blood Service Headquarters, Tokyo, Japan
| | - Naoji Yamagishi
- Central Blood Institute, Japanese Red Cross Blood Service Headquarters, Tokyo, Japan
| | - Masashi Mizokami
- Genome Medical Sciences Project, National Center for Global Health and Medicine, Chiba, Japan
| | - Masaya Sugiyama
- Genome Medical Sciences Project, National Center for Global Health and Medicine, Chiba, Japan
| | - Keiji Matsubayashi
- Central Blood Institute, Japanese Red Cross Blood Service Headquarters, Tokyo, Japan
| | - Shigeharu Uchida
- Central Blood Institute, Japanese Red Cross Blood Service Headquarters, Tokyo, Japan
| | - Tadashi Nagai
- Central Blood Institute, Japanese Red Cross Blood Service Headquarters, Tokyo, Japan
| | - Masahiro Satake
- Central Blood Institute, Japanese Red Cross Blood Service Headquarters, Tokyo, Japan
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Shinohara N, Owada T, Matsumoto C, Uchida S, Nagai T, Satake M, Tadokoro K. Evaluation of the protective ability of plasma from Japanese individuals against mosquito-borne viral infections. Trans R Soc Trop Med Hyg 2019; 111:393-401. [PMID: 29294131 DOI: 10.1093/trstmh/trx071] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2017] [Accepted: 11/06/2017] [Indexed: 11/15/2022] Open
Abstract
Background Most of the Japanese population is seropositive for anti-Japanese encephalitis virus (JEV) antibodies because of previous JEV vaccination or natural infection. Because the virological characteristics of JEV are similar to those of West Nile virus (WNV) and dengue virus (DENV), we hypothesized that anti-JEV antibodies can cross-react with WNV and DENV antigens, leading to protection against infection by these viruses. Methods Using isolated intravenous immunoglobulin (IVIG) from plasma collected in Japan, neutralizing activities against WNV and DENV and antibody-dependent enhancement (ADE) of these viral infections were evaluated using an in vitro assay to determine the potency of immunity against these viruses. Results The prepared IVIG showed considerable neutralizing activity of 2.57 log10 reduction factor against WNV infection but showed little effect against DENV infection. A strong correlation was observed between the neutralizing activity of individual plasma samples against JEV and WNV (ρ=0.768). Moreover, IVIG showed no significant ADE of WNV infection. Conclusions Based on these results, we presume that the Japanese population is generally protected from WNV infection. Furthermore, IVIG prepared from plasma donations from Japanese individuals is expected to be an effective therapeutic agent based on its neutralizing activity against JEV and WNV.
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Affiliation(s)
- Naoya Shinohara
- Central Blood Institute, Blood Service Headquarters, Japanese Red Cross Society, Tokyo, Japan
| | - Takashi Owada
- Central Blood Institute, Blood Service Headquarters, Japanese Red Cross Society, Tokyo, Japan
| | - Chieko Matsumoto
- Central Blood Institute, Blood Service Headquarters, Japanese Red Cross Society, Tokyo, Japan
| | - Shigeharu Uchida
- Central Blood Institute, Blood Service Headquarters, Japanese Red Cross Society, Tokyo, Japan
| | - Tadashi Nagai
- Central Blood Institute, Blood Service Headquarters, Japanese Red Cross Society, Tokyo, Japan
| | - Masahiro Satake
- Central Blood Institute, Blood Service Headquarters, Japanese Red Cross Society, Tokyo, Japan
| | - Kenji Tadokoro
- Central Blood Institute, Blood Service Headquarters, Japanese Red Cross Society, Tokyo, Japan
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Sayama Y, Furui Y, Takakura A, Ishinoda M, Matsumoto C, Taira R, Igarashi S, Momose S, Matsubayashi K, Uchida S, Hino S, Nagai T, Satake M. Seroprevalence of Trypanosoma cruzi infection among at-risk blood donors in Japan. Transfusion 2018; 59:287-294. [PMID: 30474861 DOI: 10.1111/trf.14999] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2018] [Revised: 08/27/2018] [Accepted: 08/27/2018] [Indexed: 11/28/2022]
Abstract
BACKGROUND Chagas disease is caused by Trypanosoma cruzi and is endemic in Latin America. In nonendemic countries, including Japan, Chagas disease is primarily a problem in the context of transfusion transmission. Approximately 250,000 immigrants from Latin America reside in Japan, and many of those individuals serve as active blood donors. This study surveyed the seroprevalence of T. cruzi infection among at-risk blood donors in Japan, defined as those who themselves (or whose mothers) were born (or raised) in Latin America, or those with a travel history to Latin America. STUDY DESIGN AND METHODS Blood samples were obtained from at-risk donors in two periods, 2004-2012 and 2013-2016. Collected samples were tested for T. cruzi antibodies using both an enzyme-linked immunosorbent assay and a chemiluminescent immunoassay. Samples that tested positive in both assays were additionally tested by polymerase chain reaction, and look-back investigation was conducted when necessary. RESULTS Of 18,484 samples obtained from 18,076 at-risk donors, 3 (1:6,025, 0.017%) donors showed seroreactivity by enzyme-linked immunosorbent assay and chemiluminescent immunoassay. All antibody-positive donors were born in Latin America. One of them also was positive for T. cruzi DNA. Eleven previous donations from this donor were subjected to look-back investigation, and five recipients were tested. All five recipients tested negative for T. cruzi antibodies. CONCLUSION Seroprevalence of T. cruzi was 0.017% among at-risk donors in Japan. Transfusion-transmitted infection of Chagas disease has not been confirmed to date. Screening for T. cruzi antibodies by targeting at-risk donors is an appropriate strategy for ensuring blood safety in Japan.
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Affiliation(s)
- Yusuke Sayama
- Central Blood Institute, Blood Service Headquarters, Japanese Red Cross Society, Tokyo, Japan
| | - Yasumi Furui
- Blood Service Headquarters, Japanese Red Cross Society, Tokyo, Japan
| | - Akiko Takakura
- Central Blood Institute, Blood Service Headquarters, Japanese Red Cross Society, Tokyo, Japan
| | - Masazumi Ishinoda
- Blood Service Headquarters, Japanese Red Cross Society, Tokyo, Japan
| | - Chieko Matsumoto
- Central Blood Institute, Blood Service Headquarters, Japanese Red Cross Society, Tokyo, Japan
| | - Rikizo Taira
- Blood Service Headquarters, Japanese Red Cross Society, Tokyo, Japan
| | - Shigeru Igarashi
- Blood Service Headquarters, Japanese Red Cross Society, Tokyo, Japan
| | - Shun'ya Momose
- Japanese Red Cross Kinki Block Blood Center, Osaka, Japan
| | - Keiji Matsubayashi
- Central Blood Institute, Blood Service Headquarters, Japanese Red Cross Society, Tokyo, Japan
| | - Shigeharu Uchida
- Central Blood Institute, Blood Service Headquarters, Japanese Red Cross Society, Tokyo, Japan
| | - Satoru Hino
- Blood Service Headquarters, Japanese Red Cross Society, Tokyo, Japan
| | - Tadashi Nagai
- Central Blood Institute, Blood Service Headquarters, Japanese Red Cross Society, Tokyo, Japan
| | - Masahiro Satake
- Central Blood Institute, Blood Service Headquarters, Japanese Red Cross Society, Tokyo, Japan.,Blood Service Headquarters, Japanese Red Cross Society, Tokyo, Japan
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29
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Uchida S, Satake M, Kurisu A, Sugiyama A, Ko K, Akita T, Tanaka J. Incidence rates of hepatitis C virus infection among blood donors in Japan: a nationwide retrospective cohort study. Transfusion 2018; 58:2880-2885. [PMID: 30376600 DOI: 10.1111/trf.14951] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2017] [Revised: 07/22/2018] [Accepted: 07/23/2018] [Indexed: 12/17/2022]
Abstract
BACKGROUND The classification of many new cases of hepatitis virus infection as overt hepatitis does not reflect the true incidence of infection because the disease takes an asymptomatic course in some cases. In this retrospective cohort study, we aimed to estimate the incidence rates of new hepatitis C virus (HCV) infections among the blood donors. STUDY DESIGN AND METHOD A 5-year retrospective cohort study was conducted to estimate the incidence rates by using the medical records of the blood donors between 2008 and 2013 for HCV infection. HCV seroconversions were investigated using a chemiluminescent enzyme immunoassay and then confirmed by nucleic acid amplification tests. RESULTS The incidence rate of HCV infection was 0.40 per 100,000 person-years (95% confidence interval, 0.27-0.57) for HCV RNA seroconversion only and 7.32 per 100,000 person-years (95% confidence interval, 6.73-7.95) if either HCV RNA or anti-HCV seroconversion were taken into consideration. No significant difference of new HCV infections was found between the sexes. CONCLUSION The incidence rate of HCV infection of this study was lower than that detected in a previous 1994-2004 study in which HCV incidence was 1.86 per 100,000 person-year, which reflects the presence of an effective blood screening system and health strategies targeting hepatitis control and prevention.
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Affiliation(s)
- Shigeharu Uchida
- Central Blood Institute, Japanese Red Cross Society, Minato-ku, Tokyo, Japan
| | - Masahiro Satake
- Central Blood Institute, Japanese Red Cross Society, Minato-ku, Tokyo, Japan
| | - Akemi Kurisu
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, Minami-ku, Hiroshima-shi, Japan
| | - Aya Sugiyama
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, Minami-ku, Hiroshima-shi, Japan
| | - Ko Ko
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, Minami-ku, Hiroshima-shi, Japan
| | - Tomoyuki Akita
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, Minami-ku, Hiroshima-shi, Japan
| | - Junko Tanaka
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, Minami-ku, Hiroshima-shi, Japan
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30
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Uchida S, Yoshida Y, Asakura K, Nakagawa K, Watanabe S. P3.01-102 Potential Predictors of Unexpected Readmission After Lung Resection. J Thorac Oncol 2018. [DOI: 10.1016/j.jtho.2018.08.1663] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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31
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Kobayashi A, Horinouchi H, Nakayama Y, Ohe Y, Yotsukura M, Uchida S, Asakura K, Yoshida Y, Nakagawa K, Watanabe S. P1.17-06 Salvage Surgery After Chemotherapy and/or Radiotherapy Including SBRT and Proton: Consecutive Analysis of 46 Patients. J Thorac Oncol 2018. [DOI: 10.1016/j.jtho.2018.08.1039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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32
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Fujimaru T, Mori T, Sekine A, Mandai S, Chiga M, Kikuchi H, Ando F, Mori Y, Nomura N, Iimori S, Naito S, Okado T, Rai T, Hoshino J, Ubara Y, Uchida S, Sohara E. Kidney enlargement and multiple liver cyst formation implicate mutations in PKD1/2 in adult sporadic polycystic kidney disease. Clin Genet 2018. [PMID: 29520754 DOI: 10.1111/cge.13249] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Distinguishing autosomal-dominant polycystic kidney disease (ADPKD) from other inherited renal cystic diseases in patients with adult polycystic kidney disease and no family history is critical for correct treatment and appropriate genetic counseling. However, for patients with no family history, there are no definitive imaging findings that provide an unequivocal ADPKD diagnosis. We analyzed 53 adult polycystic kidney disease patients with no family history. Comprehensive genetic testing was performed using capture-based next-generation sequencing for 69 genes currently known to cause hereditary renal cystic diseases including ADPKD. Through our analysis, 32 patients had PKD1 or PKD2 mutations. Additionally, 3 patients with disease-causing mutations in NPHP4, PKHD1, and OFD1 were diagnosed with an inherited renal cystic disease other than ADPKD. In patients with PKD1 or PKD2 mutations, the prevalence of polycystic liver disease, defined as more than 20 liver cysts, was significantly higher (71.9% vs 33.3%, P = .006), total kidney volume was significantly increased (median, 1580.7 mL vs 791.0 mL, P = .027) and mean arterial pressure was significantly higher (median, 98 mm Hg vs 91 mm Hg, P = .012). The genetic screening approach and clinical features described here are potentially beneficial for optimal management of adult sporadic polycystic kidney disease patients.
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Affiliation(s)
- T Fujimaru
- Department of Nephrology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - T Mori
- Department of Nephrology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - A Sekine
- Nephrology Center, Toranomon Hospital, Tokyo, Japan
| | - S Mandai
- Department of Nephrology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - M Chiga
- Department of Nephrology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - H Kikuchi
- Department of Nephrology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - F Ando
- Department of Nephrology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Y Mori
- Department of Nephrology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - N Nomura
- Department of Nephrology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - S Iimori
- Department of Nephrology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - S Naito
- Department of Nephrology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - T Okado
- Department of Nephrology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - T Rai
- Department of Nephrology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - J Hoshino
- Nephrology Center, Toranomon Hospital, Tokyo, Japan.,Okinaka Memorial Institute for Medical Research, Toranomon Hospital, Tokyo, Japan
| | - Y Ubara
- Nephrology Center, Toranomon Hospital, Tokyo, Japan.,Okinaka Memorial Institute for Medical Research, Toranomon Hospital, Tokyo, Japan
| | - S Uchida
- Department of Nephrology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - E Sohara
- Department of Nephrology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
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33
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Tanaka J, Akita T, Ohisa M, Sakamune K, Ko K, Uchida S, Satake M. Trends in the total numbers of HBV and HCV carriers in Japan from 2000 to 2011. J Viral Hepat 2018; 25:363-372. [PMID: 29193549 DOI: 10.1111/jvh.12828] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/29/2017] [Accepted: 10/05/2017] [Indexed: 12/12/2022]
Abstract
We estimated the total number of undiagnosed HBV and HCV carriers and patients with hepatitis virus-related disease in Japan according to 6 different groups classified by their natural histories during 2011. In 2011, the total number of carriers and patients infected with HBV or HCV was estimated according to 6 groups using government reports and reports from the hepatitis epidemiology research group of The Ministry of Health, Labor and Welfare in Japan. In 2011, the total number of hepatitis virus carriers was estimated to be 2 090 128-2 840 128 in which the estimated number of undiagnosed HCV and HBV carriers was 776 826 (HBV: 481 470; HCV: 295 356). The total number of treated patients, as either inpatients or outpatients, was estimated to be 811588 (HBV: 303 366; HCV: 520 600) in 2011. It is presumed that many carriers shirk consultation for many reasons, such as patients' misunderstanding, lack of awareness and forgetfulness of their positive status. The numbers of infected patients who did not seek treatment increased gradually to 501 714-1 251 714 (HBV: 333 791-483 791; HCV: 167 923-767 923) in 2011. Compared to 2000, the number of undiagnosed carriers was significantly reduced in 2011 probably because of the well-organized, effective national hepatitis virus screening system that has been launched by the Japanese government since 2002. Moreover, the increase in the number of untreated persons who are aware of their positive status shows that more effort should be invested in improving the referral system from screening centres to core hospitals.
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Affiliation(s)
- J Tanaka
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - T Akita
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - M Ohisa
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - K Sakamune
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - K Ko
- Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - S Uchida
- Japanese Red Cross Kanto-Kohshin'etsu Block Blood Center, Tokyo, Japan
| | - M Satake
- Japanese Red Cross Central Blood Institute, Tokyo, Japan
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34
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Sonobe T, Shimojima T, Nakamura A, Nakajima M, Uchida S, Kihou K, Lee CH, Iyo A, Eisaki H, Ohgushi K, Ishizaka K. Orbital-anisotropic electronic structure in the nonmagnetic state of BaFe 2(As 1-xP x ) 2 superconductors. Sci Rep 2018; 8:2169. [PMID: 29391431 PMCID: PMC5794914 DOI: 10.1038/s41598-018-20332-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [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: 10/26/2017] [Accepted: 01/16/2018] [Indexed: 12/02/2022] Open
Abstract
High-temperature superconductivity in iron-pnictides/chalcogenides arises in balance with several electronic and lattice instabilities. Beside the antiferromagnetic order, the orbital anisotropy between Fe 3d xz and 3d yz occurs near the orthorhombic structural transition in several parent compounds. However, the extent of the survival of orbital anisotropy against the ion-substitution remains to be established. Here we report the composition (x) and temperature (T) dependences of the orbital anisotropy in the electronic structure of a BaFe2(As1-xP x )2 system by using angle-resolved photoemission spectroscopy. In the low-x regime, the orbital anisotropy starts to evolve on cooling from high temperatures above both antiferromagnetic and orthorhombic transitions. By increasing x, it is gradually suppressed and survives in the optimally doped regime. We find that the in-plane orbital anisotropy persists in a large area of the nonmagnetic phase, including the superconducting dome. These results suggest that the rotational symmetry-broken electronic state acts as the stage for superconductivity in BaFe2(As1-xP x )2.
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Affiliation(s)
- T Sonobe
- Quantum-Phase Electronics Center (QPEC) and Department of Applied Physics, The University of Tokyo, Bunkyo, Tokyo, 113-8656, Japan
| | - T Shimojima
- Quantum-Phase Electronics Center (QPEC) and Department of Applied Physics, The University of Tokyo, Bunkyo, Tokyo, 113-8656, Japan.
- RIKEN Center for Emergent Matter Science (CEMS), Wako, 351-0198, Japan.
| | - A Nakamura
- Quantum-Phase Electronics Center (QPEC) and Department of Applied Physics, The University of Tokyo, Bunkyo, Tokyo, 113-8656, Japan
| | - M Nakajima
- Department of Physics, Osaka University, Toyonaka, Osaka, 560-8531, Japan
| | - S Uchida
- Department of Physics, The University of Tokyo, Bunkyo, Tokyo, 113-0033, Japan
| | - K Kihou
- National Institute of Advanced Industrial Science and Technology, Tsukuba, 305-8568, Japan
| | - C H Lee
- National Institute of Advanced Industrial Science and Technology, Tsukuba, 305-8568, Japan
| | - A Iyo
- National Institute of Advanced Industrial Science and Technology, Tsukuba, 305-8568, Japan
| | - H Eisaki
- National Institute of Advanced Industrial Science and Technology, Tsukuba, 305-8568, Japan
| | - K Ohgushi
- Department of Physics, Tohoku University, Sendai, Miyagi, 980-8578, Japan
| | - K Ishizaka
- Quantum-Phase Electronics Center (QPEC) and Department of Applied Physics, The University of Tokyo, Bunkyo, Tokyo, 113-8656, Japan
- RIKEN Center for Emergent Matter Science (CEMS), Wako, 351-0198, Japan
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Belmonte C, Birbaumer N, Carmody J, Jänig W, Messlinger K, Sato Y, Uchida S, Handwerker H. Robert F. Schmidt Ph.D., Prof. Dr. med. D. Sc. h.c. 1932–2017 Facets of a life for science. Eur J Pain 2018; 22:207-213. [DOI: 10.1002/ejp.1170] [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] [Accepted: 11/28/2017] [Indexed: 11/07/2022]
Affiliation(s)
- C. Belmonte
- Institut für Physiologie and Exp. Pathophysiologie Universität Erlangen‐Nürnberg Erlangen Germany
| | - N. Birbaumer
- Institut für Physiologie and Exp. Pathophysiologie Universität Erlangen‐Nürnberg Erlangen Germany
| | - J. Carmody
- Institut für Physiologie and Exp. Pathophysiologie Universität Erlangen‐Nürnberg Erlangen Germany
| | - W. Jänig
- Institut für Physiologie and Exp. Pathophysiologie Universität Erlangen‐Nürnberg Erlangen Germany
| | - K. Messlinger
- Institut für Physiologie and Exp. Pathophysiologie Universität Erlangen‐Nürnberg Erlangen Germany
| | - Y. Sato
- Institut für Physiologie and Exp. Pathophysiologie Universität Erlangen‐Nürnberg Erlangen Germany
| | - S. Uchida
- Institut für Physiologie and Exp. Pathophysiologie Universität Erlangen‐Nürnberg Erlangen Germany
| | - H.O. Handwerker
- Institut für Physiologie and Exp. Pathophysiologie Universität Erlangen‐Nürnberg Erlangen Germany
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36
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Kobayashi A, Horinouchi H, Ito Y, Oe Y, Uchida S, Asakura K, Yoshida Y, Nakagawa K, Watanabe S. PS01.06 Feasibility of Salvage Pulmonary Resection after Definitive Chemoradiotherapy for Advanced Non-Small Cell Lung Cancer Patients. J Thorac Oncol 2017. [DOI: 10.1016/j.jtho.2017.09.037] [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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37
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Anraku Y, Kuwahara H, Fukusato Y, Mizoguchi A, Ishii T, Nitta K, Matsumoto Y, Toh K, Miyata K, Uchida S, Nishina K, Osada K, Itaka K, Nishiyama N, Mizusawa H, Yamasoba T, Yokota T, Kataoka K. Glycaemic control boosts glucosylated nanocarrier crossing the BBB into the brain. Nat Commun 2017; 8:1001. [PMID: 29042554 PMCID: PMC5645389 DOI: 10.1038/s41467-017-00952-3] [Citation(s) in RCA: 151] [Impact Index Per Article: 21.6] [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: 03/09/2017] [Accepted: 08/07/2017] [Indexed: 01/11/2023] Open
Abstract
Recently, nanocarriers that transport bioactive substances to a target site in the body have attracted considerable attention and undergone rapid progression in terms of the state of the art. However, few nanocarriers can enter the brain via a systemic route through the blood-brain barrier (BBB) to efficiently reach neurons. Here we prepare a self-assembled supramolecular nanocarrier with a surface featuring properly configured glucose. The BBB crossing and brain accumulation of this nanocarrier are boosted by the rapid glycaemic increase after fasting and by the putative phenomenon of the highly expressed glucose transporter-1 (GLUT1) in brain capillary endothelial cells migrating from the luminal to the abluminal plasma membrane. The precisely controlled glucose density on the surface of the nanocarrier enables the regulation of its distribution within the brain, and thus is successfully optimized to increase the number of nanocarriers accumulating in neurons.There are only a few examples of nanocarriers that can transport bioactive substances across the blood-brain barrier. Here the authors show that by rapid glycaemic increase the accumulation of a glucosylated nanocarrier in the brain can be controlled.
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Affiliation(s)
- Y Anraku
- Department of Bioengineering, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8656, Japan
| | - H Kuwahara
- Department of Neurology and Neurological Science, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8519, Japan.,Center for Brain Integration Research, Tokyo Medical and Dental University (TMDU), 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8519, Japan
| | - Y Fukusato
- Department of Bioengineering, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8656, Japan
| | - A Mizoguchi
- Center for Disease Biology and Integrative Medicine, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan
| | - T Ishii
- Department of Bioengineering, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8656, Japan
| | - K Nitta
- Department of Neurology and Neurological Science, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8519, Japan.,Center for Brain Integration Research, Tokyo Medical and Dental University (TMDU), 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8519, Japan
| | - Y Matsumoto
- Center for Disease Biology and Integrative Medicine, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan.,Department of Otorhinolaryngology and Head and Neck Surgery, Graduate School of Medicine and Faculty of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan
| | - K Toh
- Innovation Center of NanoMedicine, Kawasaki Institute of Industrial Promotion, 3-25-14 Tonomachi, Kawasaki-ku, Kawasaki, 210-0821, Japan
| | - K Miyata
- Center for Disease Biology and Integrative Medicine, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan.,Department of Materials Engineering, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8656, Japan
| | - S Uchida
- Department of Bioengineering, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8656, Japan.,Center for Disease Biology and Integrative Medicine, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan
| | - K Nishina
- Department of Neurology and Neurological Science, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8519, Japan.,Center for Brain Integration Research, Tokyo Medical and Dental University (TMDU), 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8519, Japan
| | - K Osada
- Department of Bioengineering, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8656, Japan
| | - K Itaka
- Center for Disease Biology and Integrative Medicine, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan
| | - N Nishiyama
- Laboratory for Chemistry and Life Science, Institute of Innovative Research, Tokyo Institute of Technology, R1-11, 4259 Nagatsuta, Midori-ku, Yokohama, 226-8503, Japan
| | - H Mizusawa
- Department of Neurology and Neurological Science, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8519, Japan.,Center for Brain Integration Research, Tokyo Medical and Dental University (TMDU), 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8519, Japan
| | - T Yamasoba
- Department of Otorhinolaryngology and Head and Neck Surgery, Graduate School of Medicine and Faculty of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan
| | - T Yokota
- Department of Neurology and Neurological Science, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8519, Japan. .,Center for Brain Integration Research, Tokyo Medical and Dental University (TMDU), 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8519, Japan.
| | - K Kataoka
- Innovation Center of NanoMedicine, Kawasaki Institute of Industrial Promotion, 3-25-14 Tonomachi, Kawasaki-ku, Kawasaki, 210-0821, Japan. .,Policy Alternatives Research Institute, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan.
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38
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Ishikawa A, Tokunaga M, Matsumoto I, Minamihisamatsu T, Uchida S, Maeda J, Ji B, Takuwa H, Shimada H, Shinoto H, Hirano S, Kuwabara S, Higuchi M, Sahara N. Utilities of tau-pet and TSPO-pet for diagnosing severity of tau-induced disease progression. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.1869] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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39
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Nishimura M, Uchida S, Mitsunaga S, Tokunaga K, Mitomi Y, Tadokoro K, Juji T. Establishment of a T-Cell Line
from Lymphocytes Presumably
Implicated in Posttransfusion
Graft-versus-Host Disease. Vox Sang 2017. [DOI: 10.1159/000462921] [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: 11/19/2022]
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40
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Aritake-Okada S, Tanabe K, Mochizuki Y, Ochiai R, Hibi M, Kozuma K, Katsuragi Y, Ganeko M, Takeda N, Uchida S. 0066 DIURNAL REPEATED PHYSICAL EXERCISE PROMOTES SLOW WAVE ACTIVITY AND FAST-SIGMA POWER IN ACCORDANCE WITH CHANGE OF DISTAL PROXIMAL SKIN TEMPERATURE GRADIENT AND CORE BODY TEMPERATURE DURING NOCTURNAL SLEEP. Sleep 2017. [DOI: 10.1093/sleepj/zsx050.065] [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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41
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Taguchi A, Akai R, Saito M, Torikai Y, Matsuyama M, Ogura M, Uchida S. Tritium Removal from Tritiated Water Using Mesoporous Silica. Fusion Science and Technology 2017. [DOI: 10.13182/fst11-a12691] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- A. Taguchi
- Hydrogen Isotope Research Center, University of Toyama, Gofuku 3190, Toyama 930-8555, Japan
| | - R. Akai
- Hydrogen Isotope Research Center, University of Toyama, Gofuku 3190, Toyama 930-8555, Japan
| | - M. Saito
- Hydrogen Isotope Research Center, University of Toyama, Gofuku 3190, Toyama 930-8555, Japan
| | - Y. Torikai
- Hydrogen Isotope Research Center, University of Toyama, Gofuku 3190, Toyama 930-8555, Japan
| | - M. Matsuyama
- Hydrogen Isotope Research Center, University of Toyama, Gofuku 3190, Toyama 930-8555, Japan
| | - M. Ogura
- Institute of Industrial Science, The University of Tokyo, Komaba 4-6-1, Meguro-ku, Tokyo 153-8505, Japan
| | - S. Uchida
- Graduate School of Art and Science, The University of Tokyo, Komaba 3-8-1, Meguro-ku, Tokyo 153-8902, Japan
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42
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Okahashi K, Oiso N, Ishii N, Miyake M, Uchida S, Matsuda H, Kitano M, Hida J, Kawai S, Sano A, Hashimoto T, Kawada A. Paraneoplastic pemphigus associated with Castleman disease: progression from mucous to mucocutaneous lesions with epitope-spreading phenomena. Br J Dermatol 2017; 176:1406-1409. [DOI: 10.1111/bjd.15389] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- K. Okahashi
- Department of Dermatology; Kindai University Faculty of Medicine; Osaka-Sayama Japan
| | - N. Oiso
- Department of Dermatology; Kindai University Faculty of Medicine; Osaka-Sayama Japan
| | - N. Ishii
- Department of Dermatology; Kurume University School of Medicine; Kurume Japan
| | - M. Miyake
- Department of Dermatology; Kindai University Faculty of Medicine; Osaka-Sayama Japan
| | - S. Uchida
- Department of Dermatology; Kindai University Faculty of Medicine; Osaka-Sayama Japan
| | - H. Matsuda
- Department of Dermatology; Kindai University Faculty of Medicine; Osaka-Sayama Japan
| | - M. Kitano
- Department of Otolaryngology - Head and Neck Surgery; Kindai University Faculty of Medicine; Osaka-Sayama Japan
| | - J. Hida
- Department of Surgery; Kindai University Faculty of Medicine; Osaka-Sayama Japan
| | - S. Kawai
- Department of Neurology; Kindai University Faculty of Medicine; Osaka-Sayama Japan
| | - A. Sano
- Department of Respiratory Medicine and Allergology; Kindai University Faculty of Medicine; Osaka-Sayama Japan
| | - T. Hashimoto
- Kurume University Institute of Cutaneous Cell Biology; Kurume Japan
| | - A. Kawada
- Department of Dermatology; Kindai University Faculty of Medicine; Osaka-Sayama Japan
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43
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Matsumoto C, Sagara Y, Sobata R, Inoue Y, Morita M, Uchida S, Kiyokawa H, Satake M, Tadokoro K. Analysis of HTLV-1 proviral load (PVL) and antibody detected with various kinds of tests in Japanese blood donors to understand the relationship between PVL and antibody level and to gain insights toward better antibody testing. J Med Virol 2017; 89:1469-1476. [PMID: 28252206 DOI: 10.1002/jmv.24802] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2016] [Accepted: 02/23/2017] [Indexed: 01/18/2023]
Abstract
Adult T-cell leukemia/lymphoma (ATL) occurs in approximately 5% of individuals infected with human T-cell leukemia virus type 1 (HTLV-1). A high proviral load (PVL; more than four copies per 100 peripheral blood mononuclear cells (PBMCs) or 1.6 copies per 100 blood leukocytes) and being male are risk factors for ATL development. Whether anti-HTLV-1 antibody level is related to such risk is unknown. Here, PVL and antibody levels were examined using real-time PCR and other tests in 600 HTLV-1 positive screened Japanese blood donors to understand the relationship between PVL and antibody level in asymptomatic carriers and to gain insights toward better antibody testing for HTLV-1 infection. The 430 donors in whom proviral DNA was detected were considered as true positives for HTLV-1 infection. Among donors aged 40 years or older, more males than females had a PVL corresponding to more than 1.6% infected leukocytes, and an antibody titer below the median (P = 0.0018). In antibody tests using an HTLV-1 positive cell line or Env antigens there was a large discrepancy in antibody titer among 13 provirus-positive samples, probably suggesting that antibody-based screening tests should incorporate multiple HTLV-1 antigens, such as Gag and Env antigens.
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Affiliation(s)
- Chieko Matsumoto
- Japanese Red Cross Society Blood Service Headquarters, Tokyo, Japan
| | - Yasuko Sagara
- Japanese Red Cross Society Kyushu Block Blood Center, Fukuoka, Japan
| | - Rieko Sobata
- Japanese Red Cross Society Blood Service Headquarters, Tokyo, Japan
| | - Yukiko Inoue
- Japanese Red Cross Society Kyushu Block Blood Center, Fukuoka, Japan
| | - Maiko Morita
- Japanese Red Cross Society Kyushu Block Blood Center, Fukuoka, Japan
| | - Shigeharu Uchida
- Japanese Red Cross Society Blood Service Headquarters, Tokyo, Japan
| | - Hiroyuki Kiyokawa
- Japanese Red Cross Society Kyushu Block Blood Center, Fukuoka, Japan
| | - Masahiro Satake
- Japanese Red Cross Society Blood Service Headquarters, Tokyo, Japan
| | - Kenji Tadokoro
- Japanese Red Cross Society Blood Service Headquarters, Tokyo, Japan
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44
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Kozakai M, Matsumoto M, Matsumoto C, Uchida S, Nagai T, Satake M, Tadokoro K. First report of the isolation ofLactococcus garvieaefrom a platelet concentrate in Japan. Transfusion 2016; 56:2602-2606. [DOI: 10.1111/trf.13752] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2015] [Revised: 06/01/2016] [Accepted: 06/06/2016] [Indexed: 11/29/2022]
Affiliation(s)
- Moe Kozakai
- Central Blood Institute, Blood Service Headquarters; Japanese Red Cross Society and Kanto-Koshinetsu Block Blood Center, Japanese Red Cross Society; Tokyo Japan
| | - Mami Matsumoto
- Central Blood Institute, Blood Service Headquarters; Japanese Red Cross Society and Kanto-Koshinetsu Block Blood Center, Japanese Red Cross Society; Tokyo Japan
| | - Chieko Matsumoto
- Central Blood Institute, Blood Service Headquarters; Japanese Red Cross Society and Kanto-Koshinetsu Block Blood Center, Japanese Red Cross Society; Tokyo Japan
| | - Shigeharu Uchida
- Central Blood Institute, Blood Service Headquarters; Japanese Red Cross Society and Kanto-Koshinetsu Block Blood Center, Japanese Red Cross Society; Tokyo Japan
| | - Tadashi Nagai
- Central Blood Institute, Blood Service Headquarters; Japanese Red Cross Society and Kanto-Koshinetsu Block Blood Center, Japanese Red Cross Society; Tokyo Japan
| | - Masahiro Satake
- Central Blood Institute, Blood Service Headquarters; Japanese Red Cross Society and Kanto-Koshinetsu Block Blood Center, Japanese Red Cross Society; Tokyo Japan
| | - Kenji Tadokoro
- Central Blood Institute, Blood Service Headquarters; Japanese Red Cross Society and Kanto-Koshinetsu Block Blood Center, Japanese Red Cross Society; Tokyo Japan
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45
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Matsumoto C, Shinohara N, Sobata R, Uchida S, Satake M, Tadokoro K. Genetic Analysis of HIV-1 in Japan: a Comprehensive Analysis of Donated Blood. Jpn J Infect Dis 2016; 70:136-142. [PMID: 27357980 DOI: 10.7883/yoken.jjid.2015.504] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
In Japan, the number of human immunodeficiency virus (HIV)-1 infections remains relatively low; nevertheless, the annual incidence of HIV-1 infection has not decreased. New infections remain a great concern, and an improved understanding of epidemiological trends is critical for public health. The env C2V3 and pol sequences of HIV-1 RNA from 240 early (1996-2001) and 223 more recent (2010-2012) blood donations were used to compare the distribution of virus subtypes and to generate phylogenetic trees. Subtype B was clearly predominant in both early and more recent donations (both were 88.3%), and CRF01_AE was the second most common subtype. Phylogenetic analysis revealed a peculiar epidemiological transition. Compared to early subtype B isolates from 2 major endemic areas (Tokyo and Osaka), the more recent subtype B isolates formed fewer tight clusters in phylogenetic trees (from 8 to 2 clusters in Tokyo and 5 to zero clusters in Osaka). Furthermore, mixing of HIV-1 infections between these 2 endemic areas appear to increase. Analysis of phylogenetic trees suggested that local outbreaks have become smaller in Japan; however, intermixing of viral types between these 2 areas was more evident in the more recent samples.
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Affiliation(s)
- Chieko Matsumoto
- Central Blood Institute, Blood Service Headquarters, Japanese Red Cross Society
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46
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Hamidian MH, Edkins SD, Joo SH, Kostin A, Eisaki H, Uchida S, Lawler MJ, Kim EA, Mackenzie AP, Fujita K, Lee J, Davis JCS. Detection of a Cooper-pair density wave in Bi2Sr2CaCu2O8+x. Nature 2016; 532:343-7. [PMID: 27074504 DOI: 10.1038/nature17411] [Citation(s) in RCA: 169] [Impact Index Per Article: 21.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2015] [Accepted: 02/08/2016] [Indexed: 11/09/2022]
Abstract
The quantum condensate of Cooper pairs forming a superconductor was originally conceived as being translationally invariant. In theory, however, pairs can exist with finite momentum Q, thus generating a state with a spatially modulated Cooper-pair density. Such a state has been created in ultracold (6)Li gas but never observed directly in any superconductor. It is now widely hypothesized that the pseudogap phase of the copper oxide superconductors contains such a 'pair density wave' state. Here we report the use of nanometre-resolution scanned Josephson tunnelling microscopy to image Cooper pair tunnelling from a d-wave superconducting microscope tip to the condensate of the superconductor Bi2Sr2CaCu2O8+x. We demonstrate condensate visualization capabilities directly by using the Cooper-pair density variations surrounding zinc impurity atoms and at the Bi2Sr2CaCu2O8+x crystal supermodulation. Then, by using Fourier analysis of scanned Josephson tunnelling images, we discover the direct signature of a Cooper-pair density modulation at wavevectors QP ≈ (0.25, 0)2π/a0 and (0, 0.25)2π/a0 in Bi2Sr2CaCu2O8+x. The amplitude of these modulations is about five per cent of the background condensate density and their form factor exhibits primarily s or s' symmetry. This phenomenology is consistent with Ginzburg-Landau theory when a charge density wave with d-symmetry form factor and wavevector QC = QP coexists with a d-symmetry superconductor; it is also predicted by several contemporary microscopic theories for the pseudogap phase.
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Affiliation(s)
- M H Hamidian
- Department of Physics, Harvard University, Cambridge, Massachusetts 02138, USA
| | - S D Edkins
- Laboratory of Atomic and Solid State Physics, Department of Physics, Cornell University, Ithaca, New York 14853, USA.,School of Physics and Astronomy, University of St Andrews, Fife KY16 9SS, UK
| | - Sang Hyun Joo
- Institute of Applied Physics, Department of Physics and Astronomy, Seoul National University, Seoul 151-747, South Korea.,Center for Correlated Electron Systems, Institute of Basic Science, Seoul 151-742, South Korea
| | - A Kostin
- Laboratory of Atomic and Solid State Physics, Department of Physics, Cornell University, Ithaca, New York 14853, USA
| | - H Eisaki
- Institute of Advanced Industrial Science and Technology, Tsukuba, Ibaraki 305-8568, Japan
| | - S Uchida
- Institute of Advanced Industrial Science and Technology, Tsukuba, Ibaraki 305-8568, Japan.,Department of Physics, University of Tokyo, Bunkyo, Tokyo 113-0011, Japan
| | - M J Lawler
- Laboratory of Atomic and Solid State Physics, Department of Physics, Cornell University, Ithaca, New York 14853, USA.,Department of Physics, Binghamton University, Binghamton, New York 13902-6000, USA
| | - E-A Kim
- Laboratory of Atomic and Solid State Physics, Department of Physics, Cornell University, Ithaca, New York 14853, USA
| | - A P Mackenzie
- School of Physics and Astronomy, University of St Andrews, Fife KY16 9SS, UK.,Max Planck Institute for Chemical Physics of Solids, D-01187 Dresden, Germany
| | - K Fujita
- Condensed Matter Physics and Materials Science Department, Brookhaven National Laboratory, Upton, New York 11973, USA
| | - Jinho Lee
- Institute of Applied Physics, Department of Physics and Astronomy, Seoul National University, Seoul 151-747, South Korea.,Center for Correlated Electron Systems, Institute of Basic Science, Seoul 151-742, South Korea
| | - J C Séamus Davis
- Laboratory of Atomic and Solid State Physics, Department of Physics, Cornell University, Ithaca, New York 14853, USA.,School of Physics and Astronomy, University of St Andrews, Fife KY16 9SS, UK.,Condensed Matter Physics and Materials Science Department, Brookhaven National Laboratory, Upton, New York 11973, USA.,Kavli Institute at Cornell for Nanoscale Science, Cornell University, Ithaca, New York 14853, USA
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47
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Yamagishi N, Furui Y, Koshinami S, Ichijo K, Shimizu Y, Hoshi Y, Gotanda Y, Miyakawa K, Uchida S, Tadokoro K, Nagai T, Satake M. Sequence analysis of two variable cytomegalovirus genes for distinction between transfusion- and breast milk-transmitted infections in a very-low-birthweight infant. Transfusion 2016; 56:1305-1310. [PMID: 26968830 DOI: 10.1111/trf.13547] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2015] [Revised: 11/24/2015] [Accepted: 12/21/2015] [Indexed: 11/26/2022]
Abstract
BACKGROUND Cytomegalovirus (CMV) infections in very-low-birthweight infants can lead to serious clinical consequences. When CMV-related symptoms occur after transfusion, CMV transmission is often attributed to the transfusion products rather than to breast milk. However, it is sometimes difficult to distinguish between transfusion-transmitted and breast milk-transmitted CMV infections. PATIENT AND METHODS A patient was born at 27 gestational weeks with a weight of 689 g. He was transfused with leukoreduced red blood cells (LR-RBCs), which were later found to be CMV seropositive and CMV DNA positive. He was also fed with CMV DNA-positive breast milk. Thereafter, he developed CMV disease with thrombocytopenia and jaundice. To determine the route of transmission, we analyzed the sequences of two variable CMV genes, UL139 and UL146, by direct sequence analysis. We also performed deep sequence analysis to determine whether there were polyclonal CMV strains in the LR-RBCs transfused. RESULTS CMV DNA sequence-matching rates for the LR-RBCs and the patient's blood were 64.6% for the UL139 gene and 68.6% for the UL146 gene. In contrast, the sequences of these genes in the patient's blood were 100% matched with those in the breast milk. Furthermore, by deep sequence analysis, the CMV strain found in the patient's blood was not detected in the LR-RBCs transfused. CONCLUSION The results indicate that the pathogenic CMV strain was transmitted through breast milk, which is consistent with the claims that transfusion-transmitted CMV infection due to leukoreduced blood products is uncommon.
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Affiliation(s)
| | - Yasumi Furui
- Blood Service Headquarters, Japanese Red Cross Society, Tokyo, Japan
| | | | - Koichi Ichijo
- Tohoku Block Blood Center, Japanese Red Cross Society, Sendai, Japan
| | - Yoshito Shimizu
- Miyagi Blood Center, Japanese Red Cross Society, Sendai, Japan
| | - Yuji Hoshi
- Central Blood Institute Japanese Red Cross Society, Tokyo
| | - Yuko Gotanda
- Central Blood Institute Japanese Red Cross Society, Tokyo
| | - Keiko Miyakawa
- Central Blood Institute Japanese Red Cross Society, Tokyo
| | | | - Kenji Tadokoro
- Blood Service Headquarters, Japanese Red Cross Society, Tokyo, Japan
| | - Tadashi Nagai
- Central Blood Institute Japanese Red Cross Society, Tokyo
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48
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Hakamata A, Odagiri K, Miyakawa S, Irisawa H, Takeuchi K, Inui N, Tanaka S, Uchida S, Watanabe H. Pharmacokinetic and Pharmacodynamic Comparison of Sildenafil-Bosentan and Sildenafil-Ambrisentan Combination Therapies for Pulmonary Hypertension. Clin Transl Sci 2016; 9:29-35. [PMID: 26756977 PMCID: PMC5351320 DOI: 10.1111/cts.12382] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2015] [Accepted: 11/20/2015] [Indexed: 11/30/2022] Open
Abstract
To elucidate whether the pharmacokinetics (PK) and pharmacodynamics (PD) of sildenafil are influenced differently when it is coadministered with bosentan (S+B) or with ambrisentan (S+A), we evaluated the PK and PD profiles of sildenafil before and after 4–5 weeks of S+A or S+B treatment in patients with pulmonary arterial hypertension. The area under the plasma concentration–time curve of sildenafil was significantly higher in S+A treatment than in S+B treatment (165.8 ng•h/mL vs. 396.8 ng•h/mL, P = 0.018) and the oral clearance of sildenafil was significantly lower after S+A treatment than after S+B treatment (120.6 L/h/kg vs. 50.4 L/h/kg, P = 0.018). In the PD study, incremental shuttle walking distance was superior during treatment with S+A than during treatment with S+B (S+B; 280 m vs. S+A; 340 m, P = 0.042). There were no concerns about safety with either combination therapy regime.
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Affiliation(s)
- A Hakamata
- Department of Clinical Pharmacology and Therapeutics, Hamamatsu University School of Medicine, Hamamatsu, Japan
| | - K Odagiri
- Department of Clinical Pharmacology and Therapeutics, Hamamatsu University School of Medicine, Hamamatsu, Japan
| | - S Miyakawa
- Department of Clinical Pharmacology and Therapeutics, Hamamatsu University School of Medicine, Hamamatsu, Japan
| | - H Irisawa
- Department of Clinical Pharmacology and Therapeutics, Hamamatsu University School of Medicine, Hamamatsu, Japan
| | - K Takeuchi
- Department of Clinical Pharmacology and Therapeutics, Hamamatsu University School of Medicine, Hamamatsu, Japan
| | - N Inui
- Department of Clinical Pharmacology and Therapeutics, Hamamatsu University School of Medicine, Hamamatsu, Japan
| | - S Tanaka
- Department of Pharmacy Practice and Science, School of Pharmaceutical Science, University of Shizuoka, Shizuoka, Japan
| | - S Uchida
- Department of Pharmacy Practice and Science, School of Pharmaceutical Science, University of Shizuoka, Shizuoka, Japan
| | - H Watanabe
- Department of Clinical Pharmacology and Therapeutics, Hamamatsu University School of Medicine, Hamamatsu, Japan
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49
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Uchida S, Zettsu N, Hirata K, Kami K, Teshima K. High-voltage capabilities of ultra-thin Nb2O5 nanosheet coated LiNi1/3Co1/3Mn1/3O2 cathodes. RSC Adv 2016. [DOI: 10.1039/c6ra10155k] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The surface coating of LiNi1/3Co1/3Mn1/3 electrode with 1.1 nm Nb2O5 nanosheet enhanced the high voltage capability and long term stability of the charged state at 60 °C by reducing the contact area between electrode and electrolyte.
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Affiliation(s)
- S. Uchida
- Department of Environmental Science and Technology
- Faculty of Engineering
- Shinshu University
- Nagano
- Japan
| | - N. Zettsu
- Department of Environmental Science and Technology
- Faculty of Engineering
- Shinshu University
- Nagano
- Japan
| | | | - K. Kami
- Denso Cooperation
- Nisshin-shi
- Japan
| | - K. Teshima
- Department of Environmental Science and Technology
- Faculty of Engineering
- Shinshu University
- Nagano
- Japan
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50
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Tanaka J, Aizaki H, Uchida S. [Hepatitis C virus infection, its burden and countermeasures from the epidemiological point of view]. Nihon Rinsho 2015; 73 Suppl 9:89-97. [PMID: 26845910] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
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