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Yoshino Y, Fujii Y, Chihara K, Nakae A, Enmi JI, Yoshioka Y, Miyawaki I. Non-invasive differentiation of hepatic steatosis and steatohepatitis in a mouse model using nitroxyl radical as an MRI-contrast agent. Toxicol Rep 2024; 12:1-9. [PMID: 38173653 PMCID: PMC10758964 DOI: 10.1016/j.toxrep.2023.12.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2023] [Revised: 12/05/2023] [Accepted: 12/07/2023] [Indexed: 01/05/2024] Open
Abstract
Drug-induced steatohepatitis is considered more serious than drug-induced hepatic steatosis, so that differentiating between the two is crucial in drug development. In addition, early detection of drug-induced steatohepatitis is considered important since recovery is possible with drug withdrawal. However, no method has been established to differentiate between the two. In the development of drug-induced steatohepatitis, reactive oxygen species (ROS) is excessively generated in the liver. It has been reported that ROS can be monitored with electron spin resonance (ESR) and dynamic nuclear polarization-magnetic resonance imaging (DNP-MRI) by using nitroxyl radicals, which are known to participate in various in vivo redox reactions. The decay/reduction rate, which is an index for monitoring nitroxyl radicals, has been reported to be increased in tissues with excessive ROS levels other than liver, but decreased in methionine choline deficient (MCD) diet-induced steatohepatitis with excess ROS. Therefore, looking to differentiate between drug-induced hepatic steatosis and steatohepatitis, we examined whether the reduction rate decreases in steatohepatitis other than the MCD-diet induced disease and whether the decrease could be detected by MRI. We used STAM™ mice in which hepatic steatosis and steatohepatitis developed sequentially under diabetic conditions. 3-carbamoyl-PROXYL (CmP), one of the nitroxyl radicals, was injected intravenously during the MRI procedure and the reduction rate was calculated. The reduction rate was significantly higher in early steatohepatitis than in hepatic steatosis and the control. Excess ROS in early steatohepatitis was detected by an immunohistochemical marker for ROS. Therefore, it was indicated that the increase or decrease in the reduction rate in steatohepatitis differs depending on the model, and early steatohepatitis could be noninvasively differentiated from hepatic steatosis using CmP in MRI. Since the change in direction of the reduction rate in steatohepatitis in clinical studies could be predicted by confirming the reduction rate in preclinical studies, the present method, which can be used consistently in clinical and preclinical studies, warrants consideration as a candidate monitoring method for differentiating between early drug-induced steatohepatitis and hepatic steatosis in drug development.
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Affiliation(s)
- Yuka Yoshino
- Preclinical Research Unit, Sumitomo Pharma Co., Ltd., 3-1-98 Kasugade-naka, Konohana-ku, Osaka 554-0022, Japan
- Graduate School of Frontier Biosciences, Osaka University, 1-3 Yamadaoka, Suita city, Osaka 565-0871, Japan
| | - Yuta Fujii
- Preclinical Research Unit, Sumitomo Pharma Co., Ltd., 3-1-98 Kasugade-naka, Konohana-ku, Osaka 554-0022, Japan
- Graduate School of Frontier Biosciences, Osaka University, 1-3 Yamadaoka, Suita city, Osaka 565-0871, Japan
| | - Kazuhiro Chihara
- Preclinical Research Unit, Sumitomo Pharma Co., Ltd., 3-1-98 Kasugade-naka, Konohana-ku, Osaka 554-0022, Japan
| | - Aya Nakae
- Graduate School of Frontier Biosciences, Osaka University, 1-3 Yamadaoka, Suita city, Osaka 565-0871, Japan
- Center for Information and Neural Networks (CiNet), Osaka University and National Institute of Information and Communications Technology (NICT), 1-4 Yamadaoka, Suita City, Osaka 565-0871, Japan
| | - Jun-ichiro Enmi
- Graduate School of Frontier Biosciences, Osaka University, 1-3 Yamadaoka, Suita city, Osaka 565-0871, Japan
- Center for Information and Neural Networks (CiNet), Osaka University and National Institute of Information and Communications Technology (NICT), 1-4 Yamadaoka, Suita City, Osaka 565-0871, Japan
| | - Yoshichika Yoshioka
- Graduate School of Frontier Biosciences, Osaka University, 1-3 Yamadaoka, Suita city, Osaka 565-0871, Japan
- Center for Information and Neural Networks (CiNet), Osaka University and National Institute of Information and Communications Technology (NICT), 1-4 Yamadaoka, Suita City, Osaka 565-0871, Japan
| | - Izuru Miyawaki
- Preclinical Research Unit, Sumitomo Pharma Co., Ltd., 3-1-98 Kasugade-naka, Konohana-ku, Osaka 554-0022, Japan
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Fujii Y, Yoshino Y, Chihara K, Nakae A, Enmi JI, Yoshioka Y, Miyawaki I. Evaluation of in vivo MRI for detecting midodrine-induced arteritis in rats. Toxicol Rep 2023; 10:97-103. [PMID: 36685272 PMCID: PMC9845950 DOI: 10.1016/j.toxrep.2023.01.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Revised: 12/21/2022] [Accepted: 01/04/2023] [Indexed: 01/07/2023] Open
Abstract
There are no specific and sensitive biomarkers for arteritis, and the occurrence of arteritis in nonclinical toxicological studies of a candidate drug makes development of the drug very difficult. However, we showed in a previous study that the high signal intensity region around the artery on magnetic resonance imaging (MRI) could be a candidate biomarker for detection of arteritis. The present study was conducted to clarify the details of midodrine hydrochloride (MH)-induced arteritis lesions and whether arteritis induced by a mechanism other than the vasodilatory effect, which was evaluated in a previous study, could be detected by MRI. MH is a selective peripherally acting alpha-1 adrenergic receptor agonist, known to induce arteritis due to its vasoconstrictor action, but there is not enough information about MH-induced arteritis. Based on the data obtained under multiple dosing conditions, MH was administered subcutaneously to each rat once daily for 2 days at a dose level of 40 mg/kg/day for MRI assessment. The mesenteric arteries were examined using in vivo MRI at 1 day or 7 days after administration of the final dose and examined histopathologically. On the day after the final dose, high signal intensity region around the artery was observed in animals with minimal perivascular lesions confirmed by histopathology and not observed in an animal without histological changes. On the 7th day after the final dose, no abnormality was observed in histopathological examinations and no high signal intensity regions were observed by MRI in any animal. In conclusion, although further investigation is needed to confirm that high signal intensity is a reliable biomarker for humans, it is suggested that high signal intensity around the artery could be a versatile candidate biomarker with high specificity and sensitivity.
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Affiliation(s)
- Yuta Fujii
- Preclinical Research Unit, Sumitomo Pharma Co., Ltd., 3-1-98 Kasugade-naka, Konohana-ku, Osaka 554-0022, Japan,Graduate school of Frontier Biosciences, Osaka University, 1-3 Yamadaoka, Suita City, Osaka 565-0871, Japan,Corresponding author at: Preclinical Research Unit, Sumitomo Pharma Co., Ltd., 3-1-98 Kasugade-naka, Konohana-ku, Osaka 554-0022, Japan.
| | - Yuka Yoshino
- Preclinical Research Unit, Sumitomo Pharma Co., Ltd., 3-1-98 Kasugade-naka, Konohana-ku, Osaka 554-0022, Japan,Graduate school of Frontier Biosciences, Osaka University, 1-3 Yamadaoka, Suita City, Osaka 565-0871, Japan
| | - Kazuhiro Chihara
- Preclinical Research Unit, Sumitomo Pharma Co., Ltd., 3-1-98 Kasugade-naka, Konohana-ku, Osaka 554-0022, Japan
| | - Aya Nakae
- Graduate school of Frontier Biosciences, Osaka University, 1-3 Yamadaoka, Suita City, Osaka 565-0871, Japan,Center for Information and Neural Networks (CiNet), Osaka University and National Institute of Information and Communications Technology (NICT), 1-4 Yamadaoka, Suita City, Osaka 565-0871, Japan
| | - Jun-ichiro Enmi
- Graduate school of Frontier Biosciences, Osaka University, 1-3 Yamadaoka, Suita City, Osaka 565-0871, Japan,Center for Information and Neural Networks (CiNet), Osaka University and National Institute of Information and Communications Technology (NICT), 1-4 Yamadaoka, Suita City, Osaka 565-0871, Japan
| | - Yoshichika Yoshioka
- Graduate school of Frontier Biosciences, Osaka University, 1-3 Yamadaoka, Suita City, Osaka 565-0871, Japan,Center for Information and Neural Networks (CiNet), Osaka University and National Institute of Information and Communications Technology (NICT), 1-4 Yamadaoka, Suita City, Osaka 565-0871, Japan
| | - Izuru Miyawaki
- Preclinical Research Unit, Sumitomo Pharma Co., Ltd., 3-1-98 Kasugade-naka, Konohana-ku, Osaka 554-0022, Japan
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Yoshino Y, Fujii Y, Chihara K, Nakae A, Enmi JI, Yoshioka Y, Miyawaki I. Comparison of 1H-magnetic resonance spectroscopy and blood biochemistry as methods for monitoring non-diffuse hepatic steatosis in a rat model. Toxicol Rep 2023; 10:481-486. [PMID: 37179768 PMCID: PMC10172911 DOI: 10.1016/j.toxrep.2023.04.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2023] [Revised: 03/23/2023] [Accepted: 04/14/2023] [Indexed: 05/15/2023] Open
Abstract
No method of monitoring drug-induced hepatic steatosis has been established, which is a concern in drug development. Hepatic steatosis is divided into diffuse and non-diffuse forms according to the pattern of fat deposition. Diffuse hepatic steatosis was reported as evaluable by 1H-magnetic resonance spectroscopy (1H-MRS), which is used as an adjunct to the MRI examination. Blood biomarkers for hepatic steatosis have been also actively investigated. However, there are few reports to conduct 1H-MRS or blood test in human or animal non-diffuse hepatic steatosis with reference to histopathology. Therefore, to investigate whether non-diffuse hepatic steatosis can be monitored by 1H-MRS and/or blood samples, we compared histopathology to 1H-MRS and blood biochemistry in a non-diffuse hepatic steatosis rat model. Non-diffuse hepatic steatosis was induced by feeding rats the methionine choline deficient diet (MCDD) for 15 days. The evaluation sites of 1H-MRS and histopathological examination were three hepatic lobes in each animal. The hepatic fat fraction (HFF) and the hepatic fat area ratio (HFAR) were calculated from 1H-MRS spectra and digital histopathological images, respectively. Blood biochemistry analyses included triglycerides, total cholesterol, alanine aminotransferase, and aspartate aminotransferase. A strong correlation was found between HFFs and HFARs in each hepatic lobe (r = 0.78, p < 0.0001) in rats fed the MCDD. On the other hand, no correlation was found between blood biochemistry values and HFARs. This study showed that 1H-MRS parameters correlated with histopathological changes but blood biochemistry parameters didn't, so that it is suggested that 1H-MRS has the potential to be a monitoring method for non-diffuse hepatic steatosis in rats fed the MCDD. Given that 1H-MRS is commonly used in preclinical and clinical studies, 1H-MRS should be considered a candidate method for monitoring drug-induced hepatic steatosis.
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Affiliation(s)
- Yuka Yoshino
- Preclinical Research Unit, Sumitomo Pharma Co., Ltd., 3–1-98 Kasugade-naka, Konohana-ku, Osaka 554–0022, Japan
- Graduate School of Frontier Biosciences, Osaka University, 1–3 Yamadaoka, Suita city, Osaka 565–0871, Japan
- Correspondence to: D.V.M., Preclinical Research Unit, Sumitomo Pharma Co., Ltd., 3–1-98 Kasugade-naka, Konohana-ku, Osaka 554–0022, Japan.
| | - Yuta Fujii
- Preclinical Research Unit, Sumitomo Pharma Co., Ltd., 3–1-98 Kasugade-naka, Konohana-ku, Osaka 554–0022, Japan
- Graduate School of Frontier Biosciences, Osaka University, 1–3 Yamadaoka, Suita city, Osaka 565–0871, Japan
| | - Kazuhiro Chihara
- Preclinical Research Unit, Sumitomo Pharma Co., Ltd., 3–1-98 Kasugade-naka, Konohana-ku, Osaka 554–0022, Japan
| | - Aya Nakae
- Graduate School of Frontier Biosciences, Osaka University, 1–3 Yamadaoka, Suita city, Osaka 565–0871, Japan
- Center for Information and Neural Networks (CiNet), Osaka University and National Institute of Information and Communications Technology (NICT), 1–4 Yamadaoka, Suita city, Osaka 565–0871, Japan
| | - Jun-ichiro Enmi
- Graduate School of Frontier Biosciences, Osaka University, 1–3 Yamadaoka, Suita city, Osaka 565–0871, Japan
- Center for Information and Neural Networks (CiNet), Osaka University and National Institute of Information and Communications Technology (NICT), 1–4 Yamadaoka, Suita city, Osaka 565–0871, Japan
| | - Yoshichika Yoshioka
- Graduate School of Frontier Biosciences, Osaka University, 1–3 Yamadaoka, Suita city, Osaka 565–0871, Japan
- Center for Information and Neural Networks (CiNet), Osaka University and National Institute of Information and Communications Technology (NICT), 1–4 Yamadaoka, Suita city, Osaka 565–0871, Japan
| | - Izuru Miyawaki
- Preclinical Research Unit, Sumitomo Pharma Co., Ltd., 3–1-98 Kasugade-naka, Konohana-ku, Osaka 554–0022, Japan
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Andou M, Yanai S, Hada T, Kanno K, Sakate S, Sawada M, Kato K, Shimada K, Yoshino Y. Management for Ureteral Injury during Laparoscopic or Robotic Hysterectomy: Minimally Invasive Strategies. J Minim Invasive Gynecol 2022. [DOI: 10.1016/j.jmig.2022.09.244] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Nakano M, Kondo Y, Nakano M, Kajiyama T, Ito R, Kitagawa M, Sugawara M, Chiba T, Ryuzaki S, Yoshino Y, Kobayashi Y. Prognosis of hypertrophic cardiomyopathy in Japanese patients with an implantable cardioverter defibrillator -focus on apical hypertrophic cardiomyopathy. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.663] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
Patients with hypertrophic cardiomyopathy (HCM) are at high risk of lethal arrhythmias, and implantable cardioverter defibrillators (ICD) are widely used for prevention of sudden cardiac death (SCD). Apical HCM is a phenotype variant of HCM, with hypertrophy predominantly affecting apex, that was initially described 30 years ago. Apical HCM patients may have different clinical prognosis compared with other subsets of HCM. In previous studies, apical HCM patients seem to have a more benign prognosis than other types of HCM. However, little is known about the long-term outcomes of apical HCM patients and there are many unclear points. Moreover, there are few reports about the clinical prognosis in apical HCM patients with an ICD.
Objective
The aim of this study is to identify the difference between the prognosis of apical and the other types of HCM patients with an ICD.
Methods
We retrospectively analyzed the database of our ICD clinic. All subjects underwent ICD implantation between October 2006 and September 2018. We classified HCM patients into LV outflow tract obstruction (LVOTO) and midventricular obstruction (MVO), apical HCM and other non-obstructive types. We divided all the patients into apical and other types of HCM, and examined their background, incidence of appropriate ICD therapies, hospitalization for heart failure, electrical storm and death.
Results
A total of consecutive 64 Japanese HCM patients with an ICD (follow-up period, 86±24 months; age, 65±14 years; male sex, 83%; left ventricular ejection fraction, 56±14%; LV max wall-thickness, 19±7mm; LV apical aneurysm, 9.4%; 5-year risk of SCD, 4.4±2.1) were enrolled in this study. We classified them into 14 apical HCM and 50 other types of HCM patients. The clinical characteristics and major clinical events of these patients are shown in the Table 1. During the follow-up periods, there were no significant differences in the incidence of electrical storm, hospitalization for heart failure and death between the 2 groups (p=0.11; p=0.60; p=0.39). Appropriate ICD therapies occurred in 6 of 14 (43%) patients with apical HCM and 5 of 50 (10%) patients with other types of HCM (p=0.010). The risk factors of patients with apical HCM patients are shown in Table 2.
Conclusions
Appropriate ICD therapy was more prevalent in patients with apical HCM, compared to patients with other types of HCM. Aggressive intervention such as catheter ablation for ventricular tachycardia and ventricular fibrillation may be considered in patients with apical HCM and higher score of 5-year risk of SCD. Further studies are needed to clarify the manifestations and long-term outcome of apical HCM patients.
Funding Acknowledgement
Type of funding sources: None.
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Affiliation(s)
- M Nakano
- Chiba University Graduate School of Medicine, Department of Cardiovascular Medicine , Chiba , Japan
| | - Y Kondo
- Chiba University Graduate School of Medicine, Department of Cardiovascular Medicine , Chiba , Japan
| | - M Nakano
- Chiba University Graduate School of Medicine, Department of Advanced Cardiorhythm Therapeutics , Chiba , Japan
| | - T Kajiyama
- Chiba University Graduate School of Medicine, Department of Advanced Cardiorhythm Therapeutics , Chiba , Japan
| | - R Ito
- Chiba University Graduate School of Medicine, Department of Cardiovascular Medicine , Chiba , Japan
| | - M Kitagawa
- Chiba University Graduate School of Medicine, Department of Cardiovascular Medicine , Chiba , Japan
| | - M Sugawara
- Chiba University Graduate School of Medicine, Department of Cardiovascular Medicine , Chiba , Japan
| | - T Chiba
- Chiba University Graduate School of Medicine, Department of Cardiovascular Medicine , Chiba , Japan
| | - S Ryuzaki
- Chiba University Graduate School of Medicine, Department of Cardiovascular Medicine , Chiba , Japan
| | - Y Yoshino
- Chiba University Graduate School of Medicine, Department of Cardiovascular Medicine , Chiba , Japan
| | - Y Kobayashi
- Chiba University Graduate School of Medicine, Department of Cardiovascular Medicine , Chiba , Japan
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Sugawara M, Kondo Y, Yoshino Y, Ryuzaki S, Chiba T, Kitagawa M, Ito R, Nakano MI, Kajiyama T, Nakano MA, Kobayashi Y. Long-term clinical course and prognostic factors of heart failure with reduced ejection fraction (HFrEF) patients underwent primary prophylactic implantable cardioverter defibrillator (ICD). Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.380] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
For decades, ICD is a well-established therapy for improving prognosis of structural heart disease with severe cardiac dysfunction, and ICD for primary prophylaxis against sudden cardiac death were routinely provided. However, long-term prognosis and clinical course are different in each individual patient with an ICD, and it is moreover unclear what kind of factors might have influences on their clinical outcomes.
Purpose
The aim of this study is to clarify long-term prognosis and predictors of future major adverse cardiac events (MACEs) in HFrEF patients with an ICD as primary prophylaxis in Japanese population.
Methods
We retrospectively analyzed our ICD database. Patients underwent primary prophylactic ICD implantation from 2006 to 2020 at our institute and met the criteria of ICD recommendation of the latest Japanese guideline. Its requirements are receiving optimal medication therapy, symptomatic heart failure (New York Heart Association classification II or greater), and severe cardiac dysfunction (left ventricular ejection fraction (LVEF) is 35% or less). Additionally, prior NSVT is considered Class I ICD recommendation. In the case of ischemic cardiomyopathy (ICM), ICD implantation was done at least 40 days after myocardial infarction and at least 90 days after revascularization. MACEs were defined as composite outcome of cardiovascular death, heart failure hospitalization, and appropriate ICD therapies.
Results
A total of 148 consecutive patients were enrolled (male, 120 (81%); age, 62.1±11.8 years; LVEF, 23.0±5.86%; left ventricular end-diastolic diameter (LVDd), 67.6±9.26mm; paroxysmal or persistent atrial fibrillation (AF), 38 (26%); NSVT, 113 (76%); use of class III antiarrhythmic drugs, 48 (32%); ICM, 49 (33%); cardiac resynchronization therapy (CRT), 63 (43%)). One hundred twenty patients (81%) were programmed with a shock-only zone over 200 beats per minute. The median follow-up duration was 58.5 months. Among those 148 patients, MACEs were occurred to 60 patients (41%). As a result of dividing all patients into two groups by the occurrence of MACE, LVEF and LVDd were worse in MACE(+) group, whereas, MACE(−) had greater number of co morbidities. The results of cox-regression analysis showed LVDd (HR: 1.07, 95% CI: 1.03–1.12, p<0.001), AF (HR: 2.88, 95% CI: 1.56–5.31, p<0.001) and ICM (HR: 1.78, 95% CI: 1.00–3.16, p=0.049) were the independent predictors of MACEs (Table). However, initial ICD programming was not related to the occurrence of MACE.
Conclusions
The incidence of MACEs in patients with an ICD and severe HFrEF was substantially high in this Japanese population. Etiology of ICM, left ventricle size, and AF were the potential risk factors for future MACEs.
Funding Acknowledgement
Type of funding sources: None.
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Affiliation(s)
- M Sugawara
- Chiba University Hospital , Chiba , Japan
| | - Y Kondo
- Chiba University Hospital , Chiba , Japan
| | - Y Yoshino
- Chiba University Hospital , Chiba , Japan
| | - S Ryuzaki
- Chiba University Hospital , Chiba , Japan
| | - T Chiba
- Chiba University Hospital , Chiba , Japan
| | - M Kitagawa
- Chiba University Hospital , Chiba , Japan
| | - R Ito
- Chiba University Hospital , Chiba , Japan
| | - M I Nakano
- Chiba University Hospital , Chiba , Japan
| | - T Kajiyama
- Chiba University Hospital , Chiba , Japan
| | - M A Nakano
- Chiba University Hospital , Chiba , Japan
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Sugawara M, Kondo Y, Ryuzaki S, Yoshino Y, Chiba T, Kitagawa M, Ito R, Nakano MI, Kajiyama T, Nakano MA, Kobayashi Y. Negative prognostic implications of non-sustained ventricular tachycardias in patients after prophylactic defibrillator implantation. Europace 2022. [DOI: 10.1093/europace/euac053.333] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Funding Acknowledgements
Type of funding sources: None.
Background
Non-sustained ventricular tachycardia (NSVT) is frequent phenomenon in severe heart failure with reduced ejection fraction (HFrEF) patients, and causes any negative impacts on such patients. In the Japanese Circulation Society (JCS) and Japanese Heart Rhythm Society (JHRS) guidelines, NSVT is regarded as a major component of indication for implantable cardioverter defibrillator (ICD) implantation. However, the long-term prognostic significance of NSVT in severe HFrEF is incompletely resolved.
Purpose
The aim of this study is to investigate the relation between prior NSVT episodes and major adverse cardiac events (MACEs) in HFrEF patients with an ICD as primary prophylaxis.
Methods
We retrospectively analyzed our ICD database. Patients underwent primary prophylactic ICD implantation from 2007 to 2018 following ICD recommendation of JCS and JHRS guidelines. Patients met the criteria of receiving optimal medication therapy, symptomatic heart failure (New York Heart Association classification II or greater), and severe cardiac dysfunction (left ventricular ejection fraction (LVEF) is 35% or less). In the case of ischemic cardiomyopathy (ICM), implantation of ICD was done at least 40 days after myocardial infarction and at least 90 days after revascularization. Incidence of NSVT episodes were identified through daily electrocardiogram (ECG), Holter ECG or monitor ECG in the hospital. MACEs were defined as composite outcome of cardiovascular death, heart failure hospitalization, and appropriate ICD therapies.
Results
A total of 148 consecutive patients were enrolled (male, 120 (81%); age, 62.1±11.8 years; LVEF, 23.0±5.86%; left ventricular end-diastolic diameter (LVDd), 67.6±9.26mm; paroxysmal or persistent atrial fibrillation (AF), 38 (26%); NSVT, 113 (76%); use of class III antiarrhythmic drugs, 48 (32%); ICM, 49 (33%); cardiac resynchronization therapy (CRT), 63 (43%)). The median follow-up duration was 58.5 months. As a result of comparison of the Kaplan-Meier curve between NSVT group (n=113) and non-NSVT group (n=35), cardiovascular death, heart failure hospitalization, and appropriate ICD therapy were not statistically different (Figures). Of those, MACEs were occurred to 60 patients (41%). The results of cox-regression analysis showed LVDd (HR: 1.07, 95% CI: 1.03-1.12, p<0.001), AF (HR: 2.88, 95% CI: 1.56-5.31, p<0.001) and ICM (HR: 1.78, 95% CI: 1.00-3.16, p=0.049) were the independent predictors of MACEs, however NSVT was not (Table).
Conclusions
In this Japanese population, the long-term prognosis of severe HFrEF patients is considered to be comparable regardless of prior NSVT episodes. However, the incidence of MACEs in patients with severe HFrEF after ICD implantation was substantially high. ICM, left ventricle size, and atrial fibrillation were the potential risk factors for MACEs as the previous reports showed.
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Affiliation(s)
| | - Y Kondo
- Chiba University Hospital, Chiba, Japan
| | - S Ryuzaki
- Chiba University Hospital, Chiba, Japan
| | - Y Yoshino
- Chiba University Hospital, Chiba, Japan
| | - T Chiba
- Chiba University Hospital, Chiba, Japan
| | | | - R Ito
- Chiba University Hospital, Chiba, Japan
| | - MI Nakano
- Chiba University Hospital, Chiba, Japan
| | | | - MA Nakano
- Chiba University Hospital, Chiba, Japan
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Fujii Y, Yoshino Y, Chihara K, Nakae A, Enmi JI, Yoshioka Y, Miyawaki I. Detection of fenoldopam-induced arteritis in rats using ex vivo / in vivo MRI. Toxicol Rep 2022; 9:1595-1602. [DOI: 10.1016/j.toxrep.2022.07.012] [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] [Received: 06/01/2022] [Revised: 07/13/2022] [Accepted: 07/25/2022] [Indexed: 11/28/2022] Open
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Yoshino Y. Total Laparoscopic Hysterectomy without Mini-Laparotomy for a 7060g Myomatous Uterus with Cystic Degeneration. J Minim Invasive Gynecol 2021. [DOI: 10.1016/j.jmig.2021.09.301] [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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10
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Uchiyama J, Ito Y, Matsuhashi A, Ichikawa Y, Sambe M, Kitayama S, Yoshino Y, Moriyama A, Kohga H, Ogawa S, Ohta H. Characterization of Sll1558 in environmental stress tolerance of Synechocystis sp. PCC 6803. Photosynth Res 2020; 146:165-174. [PMID: 32424464 DOI: 10.1007/s11120-020-00759-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/28/2019] [Accepted: 05/11/2020] [Indexed: 06/11/2023]
Abstract
So far, the molecular mechanisms underlying the acidic-stress responses of plants are complicated and only fragmentally understood. Here, we investigated the mechanisms responsible for acidic-stress acclimation. Previously, DNA microarray analysis identified the sll1558 gene in Synechocystis sp. PCC 6803 (hereafter called Synechocystis 6803) to be upregulated following short-term acid treatment (1 h at pH 3.0). The sll1558 gene encodes uridine diphosphate-glucose pyrophosphorylase (UDP-glucose pyrophosphorylase), which catalyzes the conversion of glucose-1-phosphate into UDP-glucose. We constructed mutant cells for this gene and analyzed their phenotype. The sll1558 gene did not completely segregate in sll1558 mutant cells; thus, Sll1558 is essential for the survival of Synechocystis 6803. Besides, the partially disrupted sll1558 mutant cells were highly sensitive to acidic stress (pH 6.0) as well as other stress conditions (high salt, high osmolality, high/low temperature, and ultraviolet-B stress); the number of sll1558 transcripts increased under these conditions. UDP-glucose is used for the synthesis of various materials, such as glycolipids. From the membrane lipid composition analysis, digalactosyldiacylglycerol decreased and phosphatidylglycerol increased in the partially disrupted sll1558 mutant cells under acidic stress. These results suggest that sll1558 is important not only for the survival of Synechocystis 6803, but also for tolerance under various stress conditions.
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Affiliation(s)
- Junji Uchiyama
- Department of Biology, Faculty of Science, Tokyo University of Science, Shinjuku-ku, Tokyo, 162-8601, Japan.
- Graduate School of Mathematics and Science Education, Tokyo University of Science, Shinjuku-ku, Tokyo, 162-8601, Japan.
| | - Yutaro Ito
- Department of Biological Science and Technology, Tokyo University of Science, Katsushika-ku, Tokyo, 125-8585, Japan
| | - Ayumi Matsuhashi
- Graduate School of Mathematics and Science Education, Tokyo University of Science, Shinjuku-ku, Tokyo, 162-8601, Japan
| | - Yuta Ichikawa
- Graduate School of Mathematics and Science Education, Tokyo University of Science, Shinjuku-ku, Tokyo, 162-8601, Japan
| | - Mamoru Sambe
- Graduate School of Mathematics and Science Education, Tokyo University of Science, Shinjuku-ku, Tokyo, 162-8601, Japan
| | - Shuichi Kitayama
- Graduate School of Mathematics and Science Education, Tokyo University of Science, Shinjuku-ku, Tokyo, 162-8601, Japan
| | - Yuka Yoshino
- Graduate School of Mathematics and Science Education, Tokyo University of Science, Shinjuku-ku, Tokyo, 162-8601, Japan
| | - Atushi Moriyama
- Graduate School of Mathematics and Science Education, Tokyo University of Science, Shinjuku-ku, Tokyo, 162-8601, Japan
| | - Hidetaka Kohga
- Graduate School of Mathematics and Science Education, Tokyo University of Science, Shinjuku-ku, Tokyo, 162-8601, Japan
| | - Satoru Ogawa
- Laboratory of Electron Microscopy, School of Medicine, Mie University, Tsu, Mie, 514-8507, Japan
| | - Hisataka Ohta
- Department of Biology, Faculty of Science, Tokyo University of Science, Shinjuku-ku, Tokyo, 162-8601, Japan
- Graduate School of Mathematics and Science Education, Tokyo University of Science, Shinjuku-ku, Tokyo, 162-8601, Japan
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11
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Tochitani T, Kouchi M, Fuji Y, Yoshino Y, Matsumoto I. Spontaneous membranoproliferative glomerulonephritis in a young Crl:CD-1(ICR) mouse. J Toxicol Pathol 2020; 33:177-181. [PMID: 32764843 PMCID: PMC7396734 DOI: 10.1293/tox.2019-0081] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2019] [Accepted: 03/05/2020] [Indexed: 11/30/2022] Open
Abstract
Here, we reported a spontaneous case of membranoproliferative glomerulonephritis observed in a young ICR mouse. A 5-week-old female mouse was euthanized owing to abdominal swelling and increased body weight. At necropsy, generalized subcutaneous edema, and clear, colorless, non-viscous ascites were observed. Histologically, the kidneys showed diffuse, bilateral glomerular lesions. The lesions were characterized by thickening and double contour of the basement membrane and an increase in mesangial cells and matrix, resulting in the narrowing of the capillary lumen. Additionally, eosinophilic hyaloid material accumulated in the subendothelial areas and Bowman’s space. The material was positive for periodic acid-Schiff, complement component C3, or immunoglobulin G, stained red by Masson’s trichrome, and stained blue by phosphotungstic acid-hematoxylin stain and was considered to be plasma due to glomerular leakage. The glomerular lesion was diagnosed as membranoproliferative glomerulonephritis, and an uncertain endothelial injury was suspected as the cause.
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Affiliation(s)
- Tomoaki Tochitani
- Preclinical Research Unit, Sumitomo Dainippon Pharma Co., Ltd., 3-1-98 Kasugade-naka, Konohana-ku, Osaka 554-0022, Japan
| | - Mami Kouchi
- Preclinical Research Unit, Sumitomo Dainippon Pharma Co., Ltd., 3-1-98 Kasugade-naka, Konohana-ku, Osaka 554-0022, Japan
| | - Yuta Fuji
- Preclinical Research Unit, Sumitomo Dainippon Pharma Co., Ltd., 3-1-98 Kasugade-naka, Konohana-ku, Osaka 554-0022, Japan
| | - Yuka Yoshino
- Preclinical Research Unit, Sumitomo Dainippon Pharma Co., Ltd., 3-1-98 Kasugade-naka, Konohana-ku, Osaka 554-0022, Japan
| | - Izumi Matsumoto
- Preclinical Research Unit, Sumitomo Dainippon Pharma Co., Ltd., 3-1-98 Kasugade-naka, Konohana-ku, Osaka 554-0022, Japan
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12
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Ano Y, Yoshino Y, Uchida K, Nakayama H. Preventive Effects of Tryptophan-Methionine Dipeptide on Neural Inflammation and Alzheimer's Pathology. Int J Mol Sci 2019; 20:ijms20133206. [PMID: 31261895 PMCID: PMC6651344 DOI: 10.3390/ijms20133206] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2019] [Revised: 06/26/2019] [Accepted: 06/26/2019] [Indexed: 12/11/2022] Open
Abstract
Preventive approaches for age-related memory decline and dementia have become a high priority in the aging society because of the lack of therapeutic approaches. Recent epidemiological studies have reported that fermented dairy products can help prevent dementia. Previously, we identified tryptophan-tyrosine (WY) and tryptophan-methionine (WM) peptides as the suppressants of activation of the primary microglia and showed that WY peptide consumption suppresses inflammation in the brains of Alzheimer's disease model mice. However, the effects of the WM peptide on inflammation in the brain and Alzheimer's pathology have not been investigated. Here, we evaluated the effect of WM peptide consumption on Alzheimer's disease model (5×FAD) mice. In 5×FAD mice, intake of WM peptide suppressed the production of inflammatory cytokines, activation of microglia, and infiltration of activated microglia around β amyloid (Aβ) depositions. WM peptide intake reduced Aβ deposition in the cortex and hippocampus and then improved the object recognition memory. Taken together with previous reports, the current findings indicate that ingestion of tryptophan-related peptides or food material rich in tryptophan-related peptides, thereby regulating microglial activity, represents a potential preventive approach for cognitive decline and dementia related to inflammation.
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Affiliation(s)
- Yasuhisa Ano
- Graduate School of Agricultural and Life Sciences, the University of Tokyo, Tokyo 113-8657, Japan.
- Research Laboratories for Health Science & Food Technologies, Kirin Holdings Co. Ltd., Kanagawa 236-0004, Japan.
| | - Yuka Yoshino
- Graduate School of Agricultural and Life Sciences, the University of Tokyo, Tokyo 113-8657, Japan
| | - Kazuyuki Uchida
- Graduate School of Agricultural and Life Sciences, the University of Tokyo, Tokyo 113-8657, Japan
| | - Hiroyuki Nakayama
- Graduate School of Agricultural and Life Sciences, the University of Tokyo, Tokyo 113-8657, Japan
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13
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Ano Y, Yoshino Y, Kutsukake T, Ohya R, Fukuda T, Uchida K, Takashima A, Nakayama H. Tryptophan-related dipeptides in fermented dairy products suppress microglial activation and prevent cognitive decline. Aging (Albany NY) 2019; 11:2949-2967. [PMID: 31121563 PMCID: PMC6555451 DOI: 10.18632/aging.101909] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2019] [Accepted: 04/03/2019] [Indexed: 01/08/2023]
Abstract
The rapid growth in aging populations has made prevention of age-related memory decline and dementia a high priority. Several epidemiological and clinical studies have concluded that fermented dairy products can help prevent cognitive decline; furthermore, intake of Camembert cheese prevents microglial inflammation and Alzheimer's pathology in mouse models. To elucidate the molecular mechanisms underlying the preventive effects of fermented dairy products, we screened peptides from digested milk protein for their potential to regulate the activation of microglia. We identified dipeptides of tryptophan-tyrosine (WY) and tryptophan-methionine that suppressed the microglial inflammatory response and enhanced the phagocytosis of amyloid-β (Aβ). Various fermented dairy products and food materials contain the WY peptide. Orally administered WY peptide was smoothly absorbed into blood, delivered to the brain, and improved the cognitive decline induced by lipopolysaccharide via the suppression of inflammation. Intake of the WY peptide prevented microglial inflammation, hippocampal long-term potential deficit, and memory impairment in aged mice. In an Alzheimer's model using 5×FAD mice, intake of the WY peptide also suppressed microglial inflammation and accumulation of Aβ, which improved cognitive decline. The identified dipeptides regulating microglial activity could potentially be used to prevent cognitive decline and dementia related to inflammation.
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Affiliation(s)
- Yasuhisa Ano
- Laboratory of Veterinary Pathology, Graduate School of Agricultural and Life Sciences, the University of Tokyo, Tokyo 113-8657, Japan
- Research Laboratories for Health Science & Food Technologies, Kirin Company Ltd., Yokohama-shi, Kanagawa 236-0004, Japan
| | - Yuka Yoshino
- Laboratory of Veterinary Pathology, Graduate School of Agricultural and Life Sciences, the University of Tokyo, Tokyo 113-8657, Japan
| | - Toshiko Kutsukake
- Research Laboratories for Health Science & Food Technologies, Kirin Company Ltd., Yokohama-shi, Kanagawa 236-0004, Japan
| | - Rena Ohya
- Laboratory of Veterinary Pathology, Graduate School of Agricultural and Life Sciences, the University of Tokyo, Tokyo 113-8657, Japan
- Research Laboratories for Health Science & Food Technologies, Kirin Company Ltd., Yokohama-shi, Kanagawa 236-0004, Japan
| | - Takafumi Fukuda
- Research Laboratories for Health Science & Food Technologies, Kirin Company Ltd., Yokohama-shi, Kanagawa 236-0004, Japan
| | - Kazuyuki Uchida
- Laboratory of Veterinary Pathology, Graduate School of Agricultural and Life Sciences, the University of Tokyo, Tokyo 113-8657, Japan
| | - Akihiko Takashima
- Faculty of Science, Gakushuin University, Toshima-ku, Tokyo 171-8588, Japan
| | - Hiroyuki Nakayama
- Laboratory of Veterinary Pathology, Graduate School of Agricultural and Life Sciences, the University of Tokyo, Tokyo 113-8657, Japan
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14
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Kitazawa T, Ishigaki S, Seo K, Yoshino Y, Ota Y. Catheter-related bloodstream infection due to Rhodotorula mucilaginosa with normal serum (1→3)-β-D-glucan level. J Mycol Med 2018; 28:393-395. [PMID: 29661607 DOI: 10.1016/j.mycmed.2018.04.001] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2017] [Revised: 03/26/2018] [Accepted: 04/03/2018] [Indexed: 01/05/2023]
Abstract
Rhodotorula species are environmental basidiomycete yeasts that have emerged as a cause of fungemia in immunocompromised hosts. The insertion of a central venous catheter was identified as a major risk factor for Rhodotorula fungemia. Few cases reports have reported (1→3)-β-D-glucan testing at the onset of Rhodotorula mucilaginosa fungemia. We report a case of catheter-related bloodstream infection due to R. mucilaginosa. Serum β-D-glucan level was normal at the onset of the bloodstream infection. It took 5 days to culture the isolate. The patient's fever persisted after empiric treatment with micafungin, and a switch to oral voriconazole immediately resolved the fungemia.
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Affiliation(s)
- T Kitazawa
- Department of medicine, Teikyo University, 2-11-1 Kaga, Itabashi-ku, Tokyo, Japan.
| | - S Ishigaki
- Department of laboratory medicine, Teikyo University Hospital, Tokyo, Japan
| | - K Seo
- Department of medicine, Teikyo University, 2-11-1 Kaga, Itabashi-ku, Tokyo, Japan
| | - Y Yoshino
- Department of medicine, Teikyo University, 2-11-1 Kaga, Itabashi-ku, Tokyo, Japan
| | - Y Ota
- Department of medicine, Teikyo University, 2-11-1 Kaga, Itabashi-ku, Tokyo, Japan
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15
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Willott C, Sakashita R, Gendenjamts E, Yoshino Y. Distance learning for maternal and child health nurses and midwives in Mongolia: a qualitative evaluation. Int Nurs Rev 2018; 65:577-585. [PMID: 29570214 DOI: 10.1111/inr.12453] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
BACKGROUND Continuing education is vital for the development of the competencies of nurses and midwives. We analysed the effectiveness of a distance education programme for maternal and child health nurses and midwives in Mongolia, assessing its strengths and limitations and ways in which it could be improved. The aim of this research is to provide an analysis of the successes and failures of the programme, in order to improve future versions of this and similar programmes in Mongolia and elsewhere. METHODS We carried out a qualitative descriptive study in Mongolia in August 2015. This consisted of three semi-structured interviews and two focus groups in the Second National Hospital, Ulaanbaatar, and three semi-structured interviews and one focus group in Dornogovi Provincial Maternal Hospital, Sainshand, Dornogovi Province. In total, there were 22 participants in our research. Data from the interviews and focus groups were thematically coded and analysed using NVivo version 10. FINDINGS The distance education programme is well received by participants. They suggest that it has improved their clinical practice and education in a number of areas, and are anxious for the programme to continue. A number of alterations would be necessary to improve both the quality of the programme and the ability of participants to foster change on the basis of what they have learnt. This provides challenges for both the programme organizers and the providers of maternal and child health services in Mongolia. IMPLICATIONS FOR NURSING AND/OR HEALTH POLICY The success of the distance education programme suggests that collaborations of this type are a cost-effective method of disseminating best practice in policy and practice to improve the quality of care provided to mothers and children in low-resource settings. CONCLUSIONS A distance education programme is vital to link maternal care providers in Mongolia to new trends in care. Mongolia's relative isolation means that this programme is particularly valuable there. However, the programme could work equally well in other developing country settings.
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Affiliation(s)
- C Willott
- King's Centre for Global Health and Health Partnerships, King's College London, London, UK
| | - R Sakashita
- College of Nursing Science and Art, University of Hyogo, Hyogo, Japan
| | | | - Y Yoshino
- School of Nursing, Kitasato University, Kanagawa, Japan
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16
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Miki K, Yoshino Y, Jun K, Shigeru N. Three cases of dual antiplatelet therapy resistance in patients undergoing carotid artery stenting and stent assisted coil embolization. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.1750] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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17
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Yokomizo A, Satoh T, Hashine K, Inoue T, Fujimoto K, Egawa S, Habuchi T, Kawashima K, Ishizuka O, Shinohara N, Sugimoto M, Yoshino Y, Wakabayashi M, Nihei K, Fukuda H, Tobisu KI, Kakehi Y, Naito S. Randomized controlled trial comparing radiotherapy +/- endocrine therapy versus endocrine therapy alone for PSA failure after radical prostatectomy: Japan Clinical Oncology Group Study JCOG0401. Ann Oncol 2017. [DOI: 10.1093/annonc/mdx370.005] [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: 11/13/2022] Open
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18
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Yoshino Y, Chambers JK, Nakamori T, Goto-Koshino Y, Nishigaki K, Tsujimoto H, Matsuki N, Nakayama H, Uchida K. Primary cerebellar lymphoma with Hodgkin lymphoma-like morphology in a cat. J Vet Diagn Invest 2017; 29:707-710. [PMID: 28382853 DOI: 10.1177/1040638717704239] [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] [Indexed: 11/15/2022] Open
Abstract
A 4-y-old cat exhibited neurologic signs such as wobbling, right head tilt, and intention tremor, and MRI revealed a mass in the cerebellum. The cat died 5 mo after initial presentation, and no neoplastic lesions, other than the cerebellar mass, were observed at autopsy. Histologically, large atypical cells resembling Hodgkin cells, with single large inclusion-like nucleoli, and those resembling Reed-Sternberg cells, with symmetrically arranged nuclei, had infiltrated the left side of the cerebellum and were admixed with small lymphocytes. These atypical cells were positive for feline leukemia virus (FeLV), CD20, BLA36, vimentin, p16, p53, and Pax5, and negative for CD3, CD79a, and Iba1 by immunohistochemistry. Multiplex PCR for immunoglobulin heavy-chain gene rearrangement revealed monoclonal proliferation of B-lymphocytes. We describe this feline primary cerebellar B-cell lymphoma that displayed Hodgkin lymphoma-like tumor cells with FeLV protein expression.
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Affiliation(s)
- Yuka Yoshino
- Laboratory of Veterinary Pathology (Yoshino, Chambers, Nakamori, Nakayama, Uchida).,Molecular Diagnostic Laboratory, Veterinary Medical Center (Goto-Koshino).,Laboratory of Veterinary Internal Medicine (Tsujimoto).,Laboratory of Veterinary Clinical Pathobiology (Matsuki).,Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan; and Laboratory of Molecular Immunology and Infectious Disease, Joint Faculty of Veterinary Medicine, Yamaguchi University, Yamaguchi, Japan (Nishigaki)
| | - James K Chambers
- Laboratory of Veterinary Pathology (Yoshino, Chambers, Nakamori, Nakayama, Uchida).,Molecular Diagnostic Laboratory, Veterinary Medical Center (Goto-Koshino).,Laboratory of Veterinary Internal Medicine (Tsujimoto).,Laboratory of Veterinary Clinical Pathobiology (Matsuki).,Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan; and Laboratory of Molecular Immunology and Infectious Disease, Joint Faculty of Veterinary Medicine, Yamaguchi University, Yamaguchi, Japan (Nishigaki)
| | - Taichi Nakamori
- Laboratory of Veterinary Pathology (Yoshino, Chambers, Nakamori, Nakayama, Uchida).,Molecular Diagnostic Laboratory, Veterinary Medical Center (Goto-Koshino).,Laboratory of Veterinary Internal Medicine (Tsujimoto).,Laboratory of Veterinary Clinical Pathobiology (Matsuki).,Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan; and Laboratory of Molecular Immunology and Infectious Disease, Joint Faculty of Veterinary Medicine, Yamaguchi University, Yamaguchi, Japan (Nishigaki)
| | - Yuko Goto-Koshino
- Laboratory of Veterinary Pathology (Yoshino, Chambers, Nakamori, Nakayama, Uchida).,Molecular Diagnostic Laboratory, Veterinary Medical Center (Goto-Koshino).,Laboratory of Veterinary Internal Medicine (Tsujimoto).,Laboratory of Veterinary Clinical Pathobiology (Matsuki).,Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan; and Laboratory of Molecular Immunology and Infectious Disease, Joint Faculty of Veterinary Medicine, Yamaguchi University, Yamaguchi, Japan (Nishigaki)
| | - Kazuo Nishigaki
- Laboratory of Veterinary Pathology (Yoshino, Chambers, Nakamori, Nakayama, Uchida).,Molecular Diagnostic Laboratory, Veterinary Medical Center (Goto-Koshino).,Laboratory of Veterinary Internal Medicine (Tsujimoto).,Laboratory of Veterinary Clinical Pathobiology (Matsuki).,Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan; and Laboratory of Molecular Immunology and Infectious Disease, Joint Faculty of Veterinary Medicine, Yamaguchi University, Yamaguchi, Japan (Nishigaki)
| | - Hajime Tsujimoto
- Laboratory of Veterinary Pathology (Yoshino, Chambers, Nakamori, Nakayama, Uchida).,Molecular Diagnostic Laboratory, Veterinary Medical Center (Goto-Koshino).,Laboratory of Veterinary Internal Medicine (Tsujimoto).,Laboratory of Veterinary Clinical Pathobiology (Matsuki).,Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan; and Laboratory of Molecular Immunology and Infectious Disease, Joint Faculty of Veterinary Medicine, Yamaguchi University, Yamaguchi, Japan (Nishigaki)
| | - Naoaki Matsuki
- Laboratory of Veterinary Pathology (Yoshino, Chambers, Nakamori, Nakayama, Uchida).,Molecular Diagnostic Laboratory, Veterinary Medical Center (Goto-Koshino).,Laboratory of Veterinary Internal Medicine (Tsujimoto).,Laboratory of Veterinary Clinical Pathobiology (Matsuki).,Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan; and Laboratory of Molecular Immunology and Infectious Disease, Joint Faculty of Veterinary Medicine, Yamaguchi University, Yamaguchi, Japan (Nishigaki)
| | - Hiroyuki Nakayama
- Laboratory of Veterinary Pathology (Yoshino, Chambers, Nakamori, Nakayama, Uchida).,Molecular Diagnostic Laboratory, Veterinary Medical Center (Goto-Koshino).,Laboratory of Veterinary Internal Medicine (Tsujimoto).,Laboratory of Veterinary Clinical Pathobiology (Matsuki).,Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan; and Laboratory of Molecular Immunology and Infectious Disease, Joint Faculty of Veterinary Medicine, Yamaguchi University, Yamaguchi, Japan (Nishigaki)
| | - Kazuyuki Uchida
- Laboratory of Veterinary Pathology (Yoshino, Chambers, Nakamori, Nakayama, Uchida).,Molecular Diagnostic Laboratory, Veterinary Medical Center (Goto-Koshino).,Laboratory of Veterinary Internal Medicine (Tsujimoto).,Laboratory of Veterinary Clinical Pathobiology (Matsuki).,Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan; and Laboratory of Molecular Immunology and Infectious Disease, Joint Faculty of Veterinary Medicine, Yamaguchi University, Yamaguchi, Japan (Nishigaki)
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Ishida S, Kato M, Fujita T, Funahashi Y, Sassa N, Matsukawa Y, Yoshino Y, Yamamoto T, Katsuno T, Maruyama S, Gotoh M. Calcineurin Inhibitor–Induced Pain Syndrome in ABO-Incompatible Living Kidney Transplantation: A Case Report. Transplant Proc 2017; 49:163-166. [DOI: 10.1016/j.transproceed.2016.11.007] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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20
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Chambers JK, Yoshino Y, Fujiwara R, Nishimura R, Nakayama H, Uchida K. Thymic Carcinoma with Cartilage Formation in a Dog. J Comp Pathol 2016; 154:38-41. [PMID: 26781228 DOI: 10.1016/j.jcpa.2015.11.001] [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: 08/12/2015] [Revised: 10/26/2015] [Accepted: 11/02/2015] [Indexed: 11/17/2022]
Abstract
An 11-year-old female Chihuahua exhibited respiratory distress and a computed tomography scan showed a large mass in the anterior thoracic cavity. During surgery, it was found that the mass was strongly adherent to surrounding tissue. A histopathological examination of a biopsy sample from the mass revealed proliferation of atypical epithelial cells and cartilage formation admixed with mature lymphocytes. Immunohistochemically, the tumour cells, as well as the normal canine thymic epithelial cells, were positive for pan-cytokeratin (CK), CK5/6, CK19, p63 and bone morphogenetic protein (BMP) 6. Foci of cartilage tissue were formed in association with the neoplastic epithelial tissue. In the normal canine thymus, the subcapsular epithelial cells are positive for both CK19 and BMP6. These findings indicate that the cartilage element within the tumour developed from CK19-positive neoplastic epithelial cells, which were derived from the thymic subcapsular epithelium. This case represents a novel variant of canine thymic epithelial tumour that exhibits cartilage differentiation.
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Affiliation(s)
- J K Chambers
- Department of Veterinary Pathology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Yayoi 1-1-1, Bunkyo-ku, Tokyo, Japan
| | - Y Yoshino
- Department of Veterinary Pathology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Yayoi 1-1-1, Bunkyo-ku, Tokyo, Japan
| | - R Fujiwara
- Veterinary Medical Center, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Yayoi 1-1-1, Bunkyo-ku, Tokyo, Japan
| | - R Nishimura
- Department of Veterinary Surgery, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Yayoi 1-1-1, Bunkyo-ku, Tokyo, Japan
| | - H Nakayama
- Department of Veterinary Pathology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Yayoi 1-1-1, Bunkyo-ku, Tokyo, Japan
| | - K Uchida
- Department of Veterinary Pathology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Yayoi 1-1-1, Bunkyo-ku, Tokyo, Japan.
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21
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Tsutsumida A, Yamazaki N, Takahashi A, Namikawa K, Fujiwara Y, Kondo S, Yoshikawa S, Yoshino Y, Suzuki A, Mukaiyama A, Nishimura Y, Kiyohara Y. 346PD Evaluation of safety, tolerability, pharmacokinetics (PK) and efficacy of dabrafenib and trametinib combination (Dab + Tra) therapy in Japanese patients (pts) with BRAF V600 mutation-positive advanced cutaneous melanoma: a phase (Ph) I/II study. Ann Oncol 2015. [DOI: 10.1093/annonc/mdv528.03] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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22
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Yoshino Y, Yabashi Y, Surenkholoo A. Participatory blended maternal and child health (MCH) seminar programs to
strengthen the competency among nursing professionals in the developing
country. Ann Glob Health 2015. [DOI: 10.1016/j.aogh.2015.02.647] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
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23
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Uehara K, Ito Z, Yoshino Y, Arimoto A, Kato T, Nakamura H, Imagama S, Nishida Y, Nagino M. Aggressive surgical treatment with bony pelvic resection for locally recurrent rectal cancer. Eur J Surg Oncol 2014; 41:413-20. [PMID: 25477268 DOI: 10.1016/j.ejso.2014.11.005] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2014] [Revised: 10/13/2014] [Accepted: 11/06/2014] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND In the current era of total mesorectal excision, local relapse remains a main cause of recurrence. Although standard treatment for locally recurrent rectal cancer (LRRC) has not been established, R0 resection represents the only potentially curative treatment. However, extended surgery accompanying bony pelvic resection is technically demanding and is still challenging. METHODS Studied were 35 patients with LRRC who underwent combined resection of bony pelvis between August 2006 and October 2013. Safety and prognostic factors for survival were analyzed. Median follow-up was 33 months. RESULTS Sacrectomy was performed in 32 patients and 3 patients underwent combined resection of the pubis and ischium. The dominant operative procedure was total pelvic exenteration in 30 (86%) patients. R0 resection was achieved in 27 (77%) patients. No patients died. Pelvic sepsis was the most frequent complication (40%). Recurrence developed in 20 (57%), with the lung the most frequent site (10 patients). Three-year local relapse-free survival (LRFS) and disease-free survival (DFS) were 72.1% and 32.7%, respectively. On multivariate analysis, R1 resection was the only independent risk factor for local recurrence (p = 0.010), and concomitant liver metastasis and initial non sphincter-preserving surgery were independent predictors of worse DFS (p = 0.008 and p = 0.042, respectively). CONCLUSIONS Aggressive surgical treatment combined with bony resection for carefully selected patients with LRRC was safe with a high rate of R0 resection and favorable LRFS. However, DFS was not satisfactory even after R0 resection and the main cause was lung metastasis. Preventing distant recurrence might be a key to improve survival.
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Affiliation(s)
- K Uehara
- Division of Surgical Oncology, Department of Surgery, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Z Ito
- Department of Orthopedic Surgery, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Y Yoshino
- Department of Urology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - A Arimoto
- Division of Surgical Oncology, Department of Surgery, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - T Kato
- Division of Surgical Oncology, Department of Surgery, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - H Nakamura
- Division of Surgical Oncology, Department of Surgery, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - S Imagama
- Department of Orthopedic Surgery, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Y Nishida
- Department of Orthopedic Surgery, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - M Nagino
- Division of Surgical Oncology, Department of Surgery, Nagoya University Graduate School of Medicine, Nagoya, Japan
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Uehara K, Yoshino Y, Ito Z, Tsukushi S, Nakmura H, Kato T, Arimoto J, Ebata T, Nagino M. 241. Initial experience of laparoscopic total pelvic exenteration in a single Japanese institution. Eur J Surg Oncol 2014. [DOI: 10.1016/j.ejso.2014.08.234] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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25
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Yoshino Y, Kohara K, Abe M, Ochi S, Mori Y, Yamashita K, Igase M, Tabara Y, Mori T, Miki T, Ueno S. Missense variants of the alanine: glyoxylate aminotransferase 2 gene correlated with carotid atherosclerosis in the Japanese population. J BIOL REG HOMEOS AG 2014; 28:605-614. [PMID: 25620171] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Alanine:glyoxylate aminotransferase 2 (AGXT2; EC 2.6.1.44) degrades asymmetric dimethylarginine (ADMA), a competitive inhibitor of nitric oxide (NO) synthase. Increased ADMA, reduced NO, and hypertension are shown in Agxt2 knockout mice. There are four single nucleotide polymorphisms (rs37370, rs37369, rs180749, and rs16899974) with which AGXT2 activity changes in humans and may be related to vulnerability of vascular sclerosis. To examine the relationship between them, we studied the functional haplotypes of the AGXT2 gene and decided their relationship with arteriosclerotic changes via carotid intima-media thickness (carotid IMT) in Japanese subjects. Genotyping of those polymorphisms and the carotid IMT in 1,426 Japanese subjects were then evaluated. Subjects with C-A-A-A haplotype (rs37370, rs37369, rs180749, rs16899974) showed low AGXT2 activity (P<0.0001; Pearsons correlation coefficients: 0.497). The C-A-A-A haplotype was significantly associated with mean carotid IMT (P=0.049) and max carotid IMT (P=0.004). Subjects with two C-A-A-A haplotypes exhibited thicker mean carotid IMT (P=0.022) and maximum carotid IMT (P=0.001). In multiple regression analysis, subjects with two C-A-A-A haplotypes were independently and positively associated with mean carotid IMT (P=0.02) and maximum IMT (P=0.005) after correction. There was a significant correlation between the functional variants in the AGXT2 gene and carotid IMT in Japanese. The AGXT2 genotype may be an important factor underlying atherosclerosis.
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Affiliation(s)
- Y Yoshino
- Department of Neuropsychiatry, Molecule and Function, Ehime University Graduate School of Medicine, Shitsukawa, Toon, Ehime, Japan
| | - K Kohara
- Department of Geriatric Medicine, Ehime University Graduate School of Medicine, Shitsukawa, Toon, Ehime, Japan
| | - M Abe
- Department of Neuropsychiatry, Molecule and Function, Ehime University Graduate School of Medicine, Shitsukawa, Toon, Ehime, Japan
| | - S Ochi
- Department of Neuropsychiatry, Molecule and Function, Ehime University Graduate School of Medicine, Shitsukawa, Toon, Ehime, Japan
| | - Y Mori
- Department of Neuropsychiatry, Molecule and Function, Ehime University Graduate School of Medicine, Shitsukawa, Toon, Ehime, Japan
| | - K Yamashita
- Department of Neuropsychiatry, Molecule and Function, Ehime University Graduate School of Medicine, Shitsukawa, Toon, Ehime, Japan
| | - M Igase
- Department of Geriatric Medicine, Ehime University Graduate School of Medicine, Shitsukawa, Toon, Ehime, Japan
| | - Y Tabara
- Department of Clinical Genetics, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - T Mori
- Department of Neuropsychiatry, Molecule and Function, Ehime University Graduate School of Medicine, Shitsukawa, Toon, Ehime, Japan
| | - T Miki
- Department of Geriatric Medicine, Ehime University Graduate School of Medicine, Shitsukawa, Toon, Ehime, Japan
| | - S Ueno
- Department of Neuropsychiatry, Molecule and Function, Ehime University Graduate School of Medicine, Shitsukawa, Toon, Ehime, Japan
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Uchiyama J, Asakura R, Moriyama A, Kubo Y, Shibata Y, Yoshino Y, Tahara H, Matsuhashi A, Sato S, Nakamura Y, Tabata S, Ohta H. Sll0939 is induced by Slr0967 in the cyanobacterium Synechocystis sp. PCC6803 and is essential for growth under various stress conditions. Plant Physiol Biochem 2014; 81:36-43. [PMID: 24629663 DOI: 10.1016/j.plaphy.2014.02.007] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/04/2013] [Accepted: 02/10/2014] [Indexed: 06/03/2023]
Abstract
In this study, the genes expressed in response to low pH stress were identified in the unicellular cyanobacterium Synechocystis sp. PCC 6803 using DNA microarrays. The expression of slr0967 and sll0939 constantly increased throughout 4-h acid stress conditions. Overexpression of these two genes under the control of the trc promoter induced the cells to become tolerant to acid stress. The Δslr0967 and Δsll0939 mutant cells exhibited sensitivity to osmotic and salt stress, whereas the trc mutants of these genes exhibited tolerance to these types of stress. Microarray analysis of the Δslr0967 mutant under acid stress conditions showed that expression of the high light-inducible protein ssr2595 (HliB) and the two-component response regulator slr1214 (rre15) were out of regulation due to gene inactivation, whereas they were upregulated by acid stress in the wild-type cells. Microarray analysis and real-time quantitative reverse transcription-polymerase chain reaction analysis showed that the expression of sll0939 was significantly repressed in the slr0967 deletion mutant. These results suggest that sll0939 is directly involved in the low pH tolerance of Synechocystis sp. PCC 6803 and that slr0967 may be essential for the induction of acid stress-responsive genes.
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Affiliation(s)
- Junji Uchiyama
- Research Center for RNA Science, RIST, Tokyo University of Science, Noda, Chiba 278-8510, Japan
| | - Ryosuke Asakura
- Department of Biology, Faculty of Science, Tokyo University of Science, Shinjuku, Tokyo 162-8601, Japan
| | - Atsushi Moriyama
- Department of Biology, Faculty of Science, Tokyo University of Science, Shinjuku, Tokyo 162-8601, Japan
| | - Yuko Kubo
- Department of Biology, Faculty of Science, Tokyo University of Science, Shinjuku, Tokyo 162-8601, Japan
| | - Yousuke Shibata
- Department of Biology, Faculty of Science, Tokyo University of Science, Shinjuku, Tokyo 162-8601, Japan
| | - Yuka Yoshino
- Department of Biology, Faculty of Science, Tokyo University of Science, Shinjuku, Tokyo 162-8601, Japan
| | - Hiroko Tahara
- Department of Biology, Faculty of Science, Tokyo University of Science, Shinjuku, Tokyo 162-8601, Japan
| | - Ayumi Matsuhashi
- Department of Biology, Faculty of Science, Tokyo University of Science, Shinjuku, Tokyo 162-8601, Japan
| | - Shusei Sato
- Kazusa DNA Research Institute, Kisarazu, Chiba 292-0818, Japan
| | | | - Satoshi Tabata
- Kazusa DNA Research Institute, Kisarazu, Chiba 292-0818, Japan
| | - Hisataka Ohta
- Research Center for RNA Science, RIST, Tokyo University of Science, Noda, Chiba 278-8510, Japan; Department of Biology, Faculty of Science, Tokyo University of Science, Shinjuku, Tokyo 162-8601, Japan.
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Kitazawa T, Seo K, Wakabayashi Y, Suzuki S, Yoshino Y, Koga I, Ota Y. Do renin-angiotensin-aldosteron system inhibitors protect kidneys during vancomycin administration? Int J Infect Dis 2014. [DOI: 10.1016/j.ijid.2014.03.839] [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: 10/25/2022] Open
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Iwasawa E, Ishibashi S, Miki K, Yoshino Y, Nemoto S, Mizusawa H. Teaching NeuroImages: Reversible cognitive impairment with bithalamic lesions caused by a dural arteriovenous fistula. Neurology 2013; 81:e38-9. [DOI: 10.1212/wnl.0b013e31829e6f4a] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Yoshino Y, Seo K, Koga I, Kitazawa T, Ota Y. P22 Rebamipide exerts a mucosal healing effect on the disrupted Caco-2 cell intestinal epithelium model by Clostridium difficile toxin B. Int J Antimicrob Agents 2013. [DOI: 10.1016/s0924-8579(13)70267-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Takeyama H, Kanamaru A, Yoshino Y, Kakuta H, Kawamura Y, Matsunaga T. Production of antioxidant vitamins, beta-carotene, vitamin C, and vitamin E, by two-step culture of Euglena gracilis Z. Biotechnol Bioeng 2012; 53:185-90. [PMID: 18633963 DOI: 10.1002/(sici)1097-0290(19970120)53:2<185::aid-bit8>3.0.co;2-k] [Citation(s) in RCA: 78] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Euglena gracilis Z is one of the few microorganisms which simultaneously produces antioxidant vitamins such as beta-carotene and vitamins C and E. Photoheterotrophically cultured E. gracilis Z produced larger levels of biomass but with a lower content of antioxidant vitamins than photoautotrophically grown cultures. For efficient production of these vitamins, a two-step culture was performed. Cells were grown photoheterotrophically and then transferred to photoautotrophic conditions. When E. gracilis Z cells were grown in fed-batch culture under photoheterotrophic conditions, their density reached 19 g/L after 145 h. Subsequent transfer of these cells to photoautotrophic conditions increased vitamin content, enhancing the total vitamin yields, which were 71.0 mg/L of beta-carotene, 30.1 mg/L of vitamin E, and 86.5 mg/L of vitamin C. (c) 1997 John Wiley & Sons, Inc.
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Affiliation(s)
- H Takeyama
- Department of Biotechnology, Tokyo University of Agriculture and Technology, Koganei, Tokyo 184, Japan
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31
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Matsukawa Y, Hattori R, Mazima T, Yamamoto T, Yoshino Y, Gotoh M. 753 Is combination therapy with an anticholinergic agent and an α1-adrenoceptor antagonist useful as first-line treatment in patients with benign prostatic hyperplasia complicated by overactive bladder? A randomized, prospective, comparative study using a urodynamic study. ACTA ACUST UNITED AC 2012. [DOI: 10.1016/s1569-9056(12)60750-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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32
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Uehara K, Yoshioka Y, Taguchi Y, Igami T, Ebata T, Yokoyama Y, Sugawara G, Tsukushi S, Nishida Y, Yoshino Y, Nagino M. Locally Recurrent Rectal Cancer Successfully Treated by Total Pelvic Exenteration with Combined Ischiopubic Rami Resection: Report of a Case. Jpn J Clin Oncol 2012; 42:58-62. [DOI: 10.1093/jjco/hyr169] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/30/2023] Open
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33
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Yoshino Y, Kitazawa T, Ikeda M, Tatsuno K, Yanagimoto S, Okugawa S, Ota Y, Yotsuyanagi H. Clinical features of Bacteroides bacteremia and their association with colorectal carcinoma. Infection 2011; 40:63-7. [DOI: 10.1007/s15010-011-0159-8] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2011] [Accepted: 06/21/2011] [Indexed: 10/18/2022]
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Takeuchi M, Inoue K, Yoshino Y, Ohwada K. Internal Stress of ZnO thin Films Caused by Thickness Distribution and Crystallinity. ACTA ACUST UNITED AC 2011. [DOI: 10.1557/proc-518-215] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
AbstractThe improvement of thickness distribution and crystallinity in ZnO thin films prepared by radio frequency (rf) planer magnetron sputtering has been studied. Optimum thickness distribution of less than ± 2.2% in a 3-inch wafer is obtained by changing the substrate angle to the ZnO target and is in accordance with cosine law. The c-axis orientation perpendicular to the silicon substrate is confirmed by x-ray diffraction. The stress of ZnO thin films is larger than 0.3GPa and its distribution is independent of the substrate angle that is set at a slant to the optimum angle for thickness distribution. These results indicate that thickness distribution of ZnO thin films heavily depends on the substrate angle, while the stress and its distribution are independent of the setting angle of the substrate. Stress distribution is attributed to the distribution of argon ions and sputtered molecules impinging a wafer.
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Abstract
AbstractA transversal type 3.58MHz piezoelectric resonator has been fabricated using piezoelectric ZnO thin film on ELINVER (Fe-Ni-Cr-Ti ) alloy. The ZnO/ELINVER structure piezoelectric resonator has been designed to have 2 ppm temperature coefficient of frequency (TCF) per degree from -20 degrees to 80 degrees centigrade. The temperature coefficient of ELINVER alloy can be controlled to cancel the TCF of ZnO thin film by heat annealing. The ZnO thin film on ELINVER alloy shows c-axis orientation. The c-axis orientation of the ZnO thin film is strongly influenced by the surface roughness of the ELINVER alloy. The wet etching process has been adopted to shape the resonator made from ELINVER alloy substrate. The cross section of the resonator is a structure tapered about 10 degrees, created using different sized photo masks on each side of the ELINVER surface. The tapered cross section of the transversal type resonator greatly improves the frequency characteristics of the resonator. The electrical characteristics of the resonator after the improvement include a resonance frequency of 3.58MHz trimmed by a YAG laser, and resonance resistance of about 200 Ω. The temperature coefficient of frequency is about 1.5 ppm per degree at a temperature range of-20 degrees to 80 degrees centigrade.
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Yoshino Y, Iwasa S, Aoki H, Deguchi Y, Yamamoto Y, Ohwada K. Transmission Electron Microscopy Stjudy of Initerface Microstrucure in ZnO Thin Films Grown on Various Substrates (Glass,Au,Sl,α-Al2O3). ACTA ACUST UNITED AC 2011. [DOI: 10.1557/proc-441-241] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
AbstractZinc oxide (ZnO) thin films have been grown by radio frequency sputtering on glass, Al, Au and R cut sapphire substrates. Microstructures of the ZnO / substrate interface have been observed by transmission electron microscope. The purpose of this study is to elucidate the crystal growth mechanism of ZnO thin films using various substrates that have different crystallinity and crystal structures. An amorphous layer with a thickness of about 5 nm is observed at the ZnO/glass interface, and c axis orientation perpendicular to the substrate is observed on this amorphous layer. Mianstructurts at the ZnO/buffer metal interface, on the other hand, are significantly different from those of ZnO/glass interface. A thick amorphous layer of about 15 nm is observed at the ZnO/Al interface, presumably consisting of Al2O3 interface layer material. ZnO thin film grown on Au buffer layers is distinctly different from both ZnO on glass and Al. No amorphous layer is formed at the ZnO/Au interface, and c axis orientation begins directly from the Au surface. Epitaxially grown ZnO thin film is confirmed on a R-cut sapphire substrate. These results dearly demonstrate that ZnO thin films prepared by radio frequency sputtering are strongly influenced by the substrate surface crystallinity at the topmost layer of the substrate.
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Funahashi Y, Hattori R, Matsukawa Y, Yamamoto T, Mizutani K, Yoshino Y, Komatsu T, Sassa N, Hagikura S, Gotoh M. [Solitary fibrous tumor of the seminal vesicle]. Aktuelle Urol 2010; 41:326-7. [PMID: 20309805 DOI: 10.1055/s-0030-1247319] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
A 56-year-old man presented to our hospital with a pelvic mass. The tumor was diagnosed to occur from right seminal vesicle and to be a benign solitary fibrous tumor by transrectal tumor biopsy. The tumor enlarged during follow up, and he under-went resection of the tumor.
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Affiliation(s)
- M. Seguchi
- Faculty of Home Economics, Laboratory of Food Technology, Kobe Women's University, Suma-Ku, Kobe City 654-8585, Japan
- Corresponding author. E-mail:
| | - H. Mishima
- Faculty of Home Economics, Laboratory of Food Technology, Kobe Women's University, Suma-Ku, Kobe City 654-8585, Japan
| | - C. Kumashiro
- Faculty of Home Economics, Laboratory of Clinical Nutrition, Osaka Shoin Women's University, 4-2-26, Hishiyanishi, Higashi-Osaka 577-8550, Japan
| | - Y. Yoshino
- Faculty of Home Economics, Laboratory of Culinary Science, Kyoto Women's University, Higashiyama-ku, Kyoto City 605-8501, Japan
| | - C. Kusunose
- Faculty of Food and Nutrition, Laboratory of Cookery Science, Kyushu Nutrition Welfare University, Shimoitozu 5-1-1, Kokurakita-ku, Kitakyushu, Fukuoka 803-8511, Japan
| | - M. Goto
- Faculty of Home Economics, Laboratory of Food Technology, Kobe Women's University, Suma-Ku, Kobe City 654-8585, Japan
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Funahashi Y, Hattori R, Yamamoto T, Mizutani K, Yoshino Y, Matsukawa Y, Sassa N, Okumura K, Gotoh M. Ewing's sarcoma / primitive neuroectodermal tumor of the kidney. Aktuelle Urol 2009; 40:247-9. [PMID: 19294616 DOI: 10.1055/s-0028-1098827] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
A 42-year-old female presented with right back pain. The CT scan revealed a 72-mm space-occupying lesion in the middle portion of the right kidney. No metastasis was proven. She underwent laparoscopic radical nephrectomy and lymph node disection. The histopathological examination revealed a high-grade primitive small round tumor the cells of which were strongly positive for CD99 and vimentin. Fluorescence in situ hybridization analysis using a DNA probe for the Ewing sarcoma breakpoint region 1 (EWSR 1) on chromosome 22g12 revealed a rearrangement of the EWSR 1 locus. The diagnosis was Ewing's sarcoma / primitive neuroectodermal tumor of the kidney. She underwent 13 cycles of chemotherapy, and has no evidence of recurrence 19 months after surgery.
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Nishikimi T, Tsuzuki T, Fujita T, Sassa N, Araki H, Fukatsu A, Katsuno S, Yoshino Y, Hattori R, Gotoh M. Prognostic factors of clear renal cell carcinoma in pT1a cases. J Clin Oncol 2009. [DOI: 10.1200/jco.2009.27.15_suppl.e16064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
e16064 Background: The proportion of clear cell renal cell carcinoma (CRCC) cases diagnosed at pT1a is known to be increasing significantly. Although their prognosis is excellent in general, some cases show distant metastasis. Most of proposed prognostic factors are based on mainly large sized CRCC data. The prognostic factors for small sized CRCC, especially for pT1a cases, aren't well described. Methods: Three hundred three pT1a CRCC cases were retrieved from authors’ institution files. All cases were reviewed by the single uropathologist (T. Tsuzuki). For each case, the following pathological parameters were analyzed: patient age, tumor location (upper, middle, low), Furhman grade, presence of capsule, presence of lympho-vascular invasion, growth pattern (expansive or infiltrating), presence of scar, presence of hemorrhage, and presence of necrosis. Results: Male to female ratio was 4.4. Patient's age ranged from 21 to 85 years (median: 59 years). Follow up duration ranged from one to 225 months (median: 59 months). 35 cases showed distant metastasis. The 5-year and 10-year cause specific survival rate were 96.9%, 93.0%. The 5-year and 10-year recurrence free survival rate were 91.8%, 83.9%. Furhman grade (grade 1+2+3 vs. 4), presence of lympho-vascular invasion, infiltrating growth pattern, and presence of necrosis were statistical significant (p < 0.0001). Conclusions: Furhman grade (less than 3 vs. 4), presence of lympho-vascular invasion, growth pattern, and presence of necrosis can be prognostic factors in CRCC in pTa cases. Growth pattern, which is unrecognized concept for prognosis, can be a new prognostic factor in CRCC. No significant financial relationships to disclose.
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Affiliation(s)
- T. Nishikimi
- Tokai Urological Clinical Trial Study Group (TUCTG); Nagoya Daini Red Cross Hospital, Nagoya, Japan; Chukyo Hospital, Nagoya, Japan; Nagoya University, Nagoya, Japan; Toyohashi Municipal Hospital, Toyohashi, Japan; Komaki Municipal Hospital, Komaki, Japan; Okazaki Municipal Hospital, Okazaki, Japan; Tokai Urological Clinical Trial Study Group (TUCTG)
| | - T. Tsuzuki
- Tokai Urological Clinical Trial Study Group (TUCTG); Nagoya Daini Red Cross Hospital, Nagoya, Japan; Chukyo Hospital, Nagoya, Japan; Nagoya University, Nagoya, Japan; Toyohashi Municipal Hospital, Toyohashi, Japan; Komaki Municipal Hospital, Komaki, Japan; Okazaki Municipal Hospital, Okazaki, Japan; Tokai Urological Clinical Trial Study Group (TUCTG)
| | - T. Fujita
- Tokai Urological Clinical Trial Study Group (TUCTG); Nagoya Daini Red Cross Hospital, Nagoya, Japan; Chukyo Hospital, Nagoya, Japan; Nagoya University, Nagoya, Japan; Toyohashi Municipal Hospital, Toyohashi, Japan; Komaki Municipal Hospital, Komaki, Japan; Okazaki Municipal Hospital, Okazaki, Japan; Tokai Urological Clinical Trial Study Group (TUCTG)
| | - N. Sassa
- Tokai Urological Clinical Trial Study Group (TUCTG); Nagoya Daini Red Cross Hospital, Nagoya, Japan; Chukyo Hospital, Nagoya, Japan; Nagoya University, Nagoya, Japan; Toyohashi Municipal Hospital, Toyohashi, Japan; Komaki Municipal Hospital, Komaki, Japan; Okazaki Municipal Hospital, Okazaki, Japan; Tokai Urological Clinical Trial Study Group (TUCTG)
| | - H. Araki
- Tokai Urological Clinical Trial Study Group (TUCTG); Nagoya Daini Red Cross Hospital, Nagoya, Japan; Chukyo Hospital, Nagoya, Japan; Nagoya University, Nagoya, Japan; Toyohashi Municipal Hospital, Toyohashi, Japan; Komaki Municipal Hospital, Komaki, Japan; Okazaki Municipal Hospital, Okazaki, Japan; Tokai Urological Clinical Trial Study Group (TUCTG)
| | - A. Fukatsu
- Tokai Urological Clinical Trial Study Group (TUCTG); Nagoya Daini Red Cross Hospital, Nagoya, Japan; Chukyo Hospital, Nagoya, Japan; Nagoya University, Nagoya, Japan; Toyohashi Municipal Hospital, Toyohashi, Japan; Komaki Municipal Hospital, Komaki, Japan; Okazaki Municipal Hospital, Okazaki, Japan; Tokai Urological Clinical Trial Study Group (TUCTG)
| | - S. Katsuno
- Tokai Urological Clinical Trial Study Group (TUCTG); Nagoya Daini Red Cross Hospital, Nagoya, Japan; Chukyo Hospital, Nagoya, Japan; Nagoya University, Nagoya, Japan; Toyohashi Municipal Hospital, Toyohashi, Japan; Komaki Municipal Hospital, Komaki, Japan; Okazaki Municipal Hospital, Okazaki, Japan; Tokai Urological Clinical Trial Study Group (TUCTG)
| | - Y. Yoshino
- Tokai Urological Clinical Trial Study Group (TUCTG); Nagoya Daini Red Cross Hospital, Nagoya, Japan; Chukyo Hospital, Nagoya, Japan; Nagoya University, Nagoya, Japan; Toyohashi Municipal Hospital, Toyohashi, Japan; Komaki Municipal Hospital, Komaki, Japan; Okazaki Municipal Hospital, Okazaki, Japan; Tokai Urological Clinical Trial Study Group (TUCTG)
| | - R. Hattori
- Tokai Urological Clinical Trial Study Group (TUCTG); Nagoya Daini Red Cross Hospital, Nagoya, Japan; Chukyo Hospital, Nagoya, Japan; Nagoya University, Nagoya, Japan; Toyohashi Municipal Hospital, Toyohashi, Japan; Komaki Municipal Hospital, Komaki, Japan; Okazaki Municipal Hospital, Okazaki, Japan; Tokai Urological Clinical Trial Study Group (TUCTG)
| | - M. Gotoh
- Tokai Urological Clinical Trial Study Group (TUCTG); Nagoya Daini Red Cross Hospital, Nagoya, Japan; Chukyo Hospital, Nagoya, Japan; Nagoya University, Nagoya, Japan; Toyohashi Municipal Hospital, Toyohashi, Japan; Komaki Municipal Hospital, Komaki, Japan; Okazaki Municipal Hospital, Okazaki, Japan; Tokai Urological Clinical Trial Study Group (TUCTG)
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Saito T, Sasaki M, Kawanabe H, Yoshino Y, Goto M. Subcritical Water Reaction Behavior of D-Glucose as a Model Compound for Biomass Using Two Different Continuous-Flow Reactor Configurations. Chem Eng Technol 2009. [DOI: 10.1002/ceat.200800537] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Kitazawa T, Yoshino Y, Tatsuno K, Koike K, Ota Y. Pharmarcokinetic-Pharmacodynamic Analysis of Vancomycin in Patients with MRSA Bacteremia. Int J Infect Dis 2008. [DOI: 10.1016/j.ijid.2008.05.710] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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Anas CM, Hattori R, Morita Y, Matsukawa Y, Komatsu T, Yoshino Y, Maruyama S, Yuzawa Y, Matsuo S, Gotoh M. Efficiency of laparoscopic-assisted renal biopsy. Clin Nephrol 2008; 70:203-209. [PMID: 18793561 DOI: 10.5414/cnp70203] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/03/2023] Open
Abstract
BACKGROUND This study was made to present our experience and results with transperitoneal laparoscopic-assisted renal biopsy (LARB) in Nagoya University Hospital as a good alternative for open renal biopsy. METHODS 21 patients (14 male, 7 female, mean age 58 years, range 21-83 years) were unsuitable for percutaneous renal biopsy. Therefore, they underwent laparoscopic-assisted renal biopsy. The kidney was approached transperitoneally via three ports, cortical tissue was obtained using a 16-gauge gun-mounted semiautomatic biopsy needle. Hemostasis was obtained by applying pressure on the renal puncture using gauze until bleeding had been stopped (range 5-20 min). RESULTS Adequate cortical tissue and accurate diagnoses were obtained in all patients. Mean operative time was 83 min (range 65-120 min) and mean estimated blood loss was 5.5 ml (range 1-10 ml). There were no intraoperative complications: no open conversion, blood transfusions or gross hematuria. All patients walked about freely and could tolerate regular food on the first postoperative day. The only postoperative complication was a hernia formation at the place of trocar insertion 3 months after the operation in one patient who previously underwent multiple surgery for 3 arterial grafts and appendicitis. CONCLUSIONS LARB is a safe and accurate procedure for obtaining cortical biopsies with minimal blood loss. Although LARB remains a surgical procedure which requires general anesthesia, LARB to date may be considered as a good alternative to open renal biopsy for patients in whom a closed percutaneous approach is either a relative or absolute contraindication.
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Affiliation(s)
- C M Anas
- Department of Urology, Nagoya University Graduate School of Medicine, Nagoya, Aichi, Japan.
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44
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Seguchi M, Tabara A, Fukawa I, Ono H, Kumashiro C, Yoshino Y, Kusunose C, Yamane C. Effects of Size of Cellulose Granules on Dough Rheology, Microscopy, and Breadmaking Properties. J Food Sci 2007; 72:E79-84. [DOI: 10.1111/j.1750-3841.2007.00272.x] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [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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Seguchi M, Ishihara C, Yoshino Y, Nakatsuka K, Yoshihira T. Breadmaking Properties of Triticale Flour with Wheat Flour and Relationship to Amylase Activity. J Food Sci 2006. [DOI: 10.1111/j.1365-2621.1999.tb15089.x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- M. Seguchi
- Author Seguchi and Ishihara are affiliated with Kobe Women's Univ., Suma‐Ku, Kobe City 654, Japan
| | - C. Ishihara
- Author Seguchi and Ishihara are affiliated with Kobe Women's Univ., Suma‐Ku, Kobe City 654, Japan
| | - Y. Yoshino
- Author Yoshino is affiliated with Kyoto Women's Univ., Higashiyama‐ku, Kyoto City, 605, Japan
| | - K. Nakatsuka
- Author Nakatsuka is affiliated with the Hokkaido National Agricultural Experiment Station, KAFF, Hokkaido, 082, Japan
| | - T. Yoshihira
- Author Yoshihira is with Rakuno Gakuen Univ., Ebetsu, Hokkaido 069, Japan
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Ohta H, Shibata Y, Haseyama Y, Yoshino Y, Suzuki T, Kagasawa T, Kamei A, Ikeuchi M, Enami I. Identification of genes expressed in response to acid stress in Synechocystis sp. PCC 6803 using DNA microarrays. Photosynth Res 2005; 84:225-30. [PMID: 16049778 DOI: 10.1007/s11120-004-7761-x] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/28/2004] [Accepted: 12/16/2004] [Indexed: 05/03/2023]
Abstract
Plant cells are always exposed to various environmental stresses such as high light, low temperature and acid rain, and thus have to respond in order to survive these stresses. Although some mechanisms of responses to high light and low temperature etc., have been clarified, there is little information about the acclimation process to acid stress. In this study, the gene expression changes of Synechocystis sp. PCC 6803 in response to acid stress were examined using DNA microarrays (CyanoCHIP). We compared gene expression profiles of the cells treated at pH 8 (control) and pH 3 for 0.5, 1, 2 or 4 h. As a result, we found that 32 genes were upregulated by more than 3-fold, and 29 genes were downregulated by at least 3-fold after the acid treatment. Among these upregulated genes, expressions of slr0967 and sll0939 kept-increasing until 4 h under the acid stress and increased by 7 to 16-fold after the 4 h treatment. This suggests that the products of these two genes play important roles in the acid acclimation process.
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Affiliation(s)
- Hisataka Ohta
- Department of Biology, Faculty of Science, Tokyo University of Science, 1-3 Kagurazaka, Tokyo 162-8601, Japan
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47
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Yoshino Y. Conventional and Novel Methods for Facial-Image Identification. Forensic Sci Rev 2004; 16:103-114. [PMID: 26256843] [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] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
This article reviews conventional and novel methods for facial-image identification from forensic aspects. Among the conventional approaches, three methods, i.e., morphological comparison of facial features, anthropometric indices comparison, and face-to-face superimposition, are generally used. The methods most commonly used in caseworks are in the order of morphological comparison, anthropometric indices comparison, and face-to-face superimposition. A novel method based on the superimposition of 2D/3D facial images is introduced and its advantages and disadvantages are described. Assessments of the reliability of facial-image identification, including expert opinions, are discussed. A new retrieval system using a 3D facial-image database is proposed for the screening of suspects' facial images.
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Affiliation(s)
- Y Yoshino
- National Research Institute of Police Science, Kashiwanoha, Kashiwa, Chiba, Japan
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Fukui H, Hara S, Hashimoto Y, Horiuchi T, Ikezoe M, Itami N, Kawabe M, Kawanishi H, Kimura H, Nakamoto Y, Nakayama M, Ono M, Ota K, Shinoda T, Suga T, Ueda T, Fujishima M, Maeba T, Yamashita A, Yoshino Y, Watanabe S. Review of combination of peritoneal dialysis and hemodialysis as a modality of treatment for end-stage renal disease. Ther Apher Dial 2004; 8:56-61. [PMID: 15128021 DOI: 10.1111/j.1526-0968.2004.00107.x] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Because the contribution of residual renal function (RRF) to total solute clearance is often significant in continuous ambulatory peritoneal dialysis (CAPD), loss of RRF over time can lead to inadequate dialysis if appropriate prescription management strategies are not pursued. Additionally, declines in ultrafiltration caused by increases in peritoneal permeability may limit continuation of CAPD therapy. Peritoneal dialysis and hemodialysis (PD + HD) combination therapy (complementary dialysis therapy) is an alternative method. This therapy allows the patient to maintain daily activities, as with CAPD, while undergoing once-a-week HD supplements for the insufficient removal of solutes and water. This therapy allows for the continuation of PD without shifting to total HD in PD patients who continue to have uremic symptoms even after individualization of the PD prescription. This treatment option is psychologically more acceptable to patients and may be expected to provide such accompanying beneficial effects as peritoneal resting, improvement of QOL and reduction in medical cost.
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Ikeguchi M, Yoshino Y, Kanie K, Nomura M, Kikuchi E, Matsukata M. Effects of preparation method on oxygen permeation properties of SrFeCo0.5Ox membrane. Sep Purif Technol 2003. [DOI: 10.1016/s1383-5866(03)00048-0] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Abstract
Leptin, a satiety-regulating cytokine, is predominantly expressed by adipocytes, although recently the nonadipose tissue production of leptin has been reported. To investigate the possibility of leptin production by human scalp hair follicles, we examined leptin production and its mRNA expression by cultured human follicular papilla cells. We isolated 12 human follicular papilla cell lines from different individuals. They were identified by their morphology, their high alpha-smooth-muscle actin expression, their inability to differentiate into adipocytes, and by the lack of mRNA for adipose-specific fatty acid binding protein. All the human follicular papilla cell lines, but not neonatal human dermal fibroblasts, produced significant amounts of leptin demonstrable by enzyme-linked immunosorbent assay. We demonstrated leptin mRNA expression by human follicular papilla cell lines, but not by neonatal human dermal fibroblasts, by reverse transcription polymerase chain reaction. By immunohistochemistry and in situ hybridization, we detected both leptin protein and mRNA at the lower portion of the hair follicle, i.e., hair matrix, inner root sheath of the hair bulb, and human follicular papilla cells. In contrast, the leptin receptor with intracytoplasmic signal sequence was detected in the follicular papilla cells immunohistochemically, and the long isoform of the leptin receptor mRNA was demonstrated in the human follicular papilla cell lines by reverse transcription polymerase chain reaction. Finally, by using these human follicular papilla cell lines, we showed that cytokines such as interleukin-1 beta, tumor necrosis factor alpha, interferon-gamma, and interleukin-4, and growth factors such as epidermal growth factor, basic fibroblast growth factor, and transforming growth factor beta1, but not vascular endothelial growth factor, hepatocyte growth factor, keratinocyte growth factor, and insulin-like growth factor 1, significantly downregulated the production of leptin. These data demonstrated that human follicular papilla cells produce leptin and express the functional leptin receptor in vivo and in vitro, suggesting its autocrine function. Moreover, the regulation pattern of its production by various factors suggests a pivotal role of leptin in hair biology.
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Affiliation(s)
- M Iguchi
- Department of Dermatology, Tohoku University School of Medicine, Sendai, Japan
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