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Shinozaki Y, Fukui K, Maekawa M, Toyoda K, Yoshiuchi H, Inagaki K, Uno K, Miyajima K, Ohta T. Unilateral nephrectomized SHR/NDmcr-cp rat shows a progressive decline of glomerular filtration with tubular interstitial lesions. Physiol Res 2023; 72:209-220. [PMID: 37159855] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/11/2023] Open
Abstract
In patients with diabetic kidney disease (DKD), the estimated glomerular filtration rate (eGFR) or creatinine clearance rate (Ccr) is always used as an index of decline in renal function. However, there are few animal models of DKD that could be used to evaluate renal function based on GFR or Ccr. For this reason, it is desirable to develop animal models to assess renal function, which could also be used for the evaluation of novel therapeutic agents for DKD. Therefore, we aimed to develop such animal model of DKD by using spontaneously hypertensive rat (SHR)/NDmcr-cp (cp/cp) rats with the characteristics of obese type 2 diabetes and metabolic syndrome. As a result, we have found that unilateral nephrectomy (UNx) caused a chronic Ccr decline, development of glomerular sclerosis, tubular lesions, and tubulointerstitial fibrosis, accompanied by renal anemia. Moreover, losartan-mixed diet suppressed the Ccr decline in UNx-performed SHR/NDmcr-cp rats (UNx-SHR/cp rats), with improvement in renal anemia and histopathological changes. These results suggest that UNx-SHR/cp rats could be used as a DKD model for evaluating the efficacy of therapeutic agents based on suppression of renal function decline.
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Affiliation(s)
- Y Shinozaki
- Laboratory of Animal Physiology and Functional Anatomy, Graduate School of Agriculture, Kyoto University, Kyoto, Japan.
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Kimura Y, Masumoto N, Kanou A, Fukui K, Sasada S, Emi A, Kadoya T, Arihiro K, Okada M. The TILs-US score on ultrasonography can predict the pathological response to neoadjuvant chemotherapy for human epidermal growth factor receptor 2-positive and triple-negative breast cancer. Surg Oncol 2022; 41:101725. [DOI: 10.1016/j.suronc.2022.101725] [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: 10/10/2021] [Revised: 01/20/2022] [Accepted: 02/13/2022] [Indexed: 11/30/2022]
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Fukui K, Masumoto N, Yokoyama E, Kanou A, Yokozaki M, Sasada S, Emi A, Kadoya T, Arihiro K, Okada M. Ultrasonography Combined With Contrast-enhanced Ultrasonography Can Predict Lymphocyte-predominant Breast Cancer. Cancer Diagn Progn 2021; 1:309-316. [PMID: 35403146 PMCID: PMC8988962 DOI: 10.21873/cdp.10041] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/11/2021] [Accepted: 07/15/2021] [Indexed: 05/27/2023]
Abstract
BACKGROUND We investigated whether contrast-enhanced ultrasonography (CEUS) scores can predict lymphocyte-predominant breast cancer (LPBC). PATIENTS AND METHODS We evaluated 75 patients who underwent US and CEUS. LPBC was defined as tissues with ≥50% stromal tumour-infiltrating lymphocytes (TILs) preoperatively. Characteristic US images predicting LPBC were evaluated using TIL-US scores via three ultrasonic tissue characteristics: Shape, internal echo level, and posterior echoes. TIL-CEUS was evaluated based on TIL-US plus CEUS. RESULTS TIL-US and TIL-CEUS cut-offs for predicting LPBC were 4 and 6 (area under the curve=0.93 and 0.96, respectively) points based on receiver operating characteristics curves. Sensitivity, specificity, and accuracy values (95% confidence intervaI) were 0.94 (0.77-0.99), 0.75 (0.70-0.77), and 0.80 (0.72-0.82); and 0.94 (0.78-0.99), 0.86 (0.81-0.87), and 0.88 (0.80-0.90) for TIL-US and TIL-CEUS, respectively. TIL-CEUS score was a significant single predictor for LPBC in multivariate logistic regression (p=0.001). CONCLUSION TIL-CEUS can be used for preoperative LPBC prediction and detection.
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Affiliation(s)
- Kayo Fukui
- Division of Laboratory Medicine, Hiroshima University Hospital, Hiroshima, Japan
| | - Norio Masumoto
- Department of Surgical Oncology, Research Institute for Radiation Biology and Medicine,Hiroshima University, Hiroshima, Japan
| | - Erika Yokoyama
- Division of Laboratory Medicine, Hiroshima University Hospital, Hiroshima, Japan
| | - Akiko Kanou
- Division of Laboratory Medicine, Hiroshima University Hospital, Hiroshima, Japan
| | - Michiya Yokozaki
- Division of Laboratory Medicine, Hiroshima University Hospital, Hiroshima, Japan
| | - Shinsuke Sasada
- Department of Surgical Oncology, Research Institute for Radiation Biology and Medicine,Hiroshima University, Hiroshima, Japan
| | - Akiko Emi
- Department of Surgical Oncology, Research Institute for Radiation Biology and Medicine,Hiroshima University, Hiroshima, Japan
| | - Takayuki Kadoya
- Department of Surgical Oncology, Research Institute for Radiation Biology and Medicine,Hiroshima University, Hiroshima, Japan
| | - Koji Arihiro
- Department of Anatomical Pathology, Hiroshima University Hospital, Hiroshima, Japan
| | - Morihito Okada
- Department of Surgical Oncology, Research Institute for Radiation Biology and Medicine,Hiroshima University, Hiroshima, Japan
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Fukui K, Tanaka T, Nangaku M. Enarodustat to treat anemia in chronic kidney disease. Drugs Today (Barc) 2021; 57:491-497. [PMID: 34405206 DOI: 10.1358/dot.2021.57.8.3304877] [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] [Indexed: 10/20/2022]
Abstract
Anemia is a common complication in patients with chronic kidney disease (CKD). Erythropoiesis-stimulating agents (ESAs) are the standard therapy for anemia in CKD. It has been expected that hypoxia-inducible factor prolyl hydroxylase (HIF-PH) inhibition may have the potential to provide therapeutic benefits over pre-existing ESAs for anemia in CKD. Enarodustat (JTZ-951) is an oral HIF-PH inhibitor. In preclinical studies, enarodustat has been found to increase HIF-alpha proteins, erythropoietin production and erythropoiesis. Enarodustat also shows efficient iron utilization in iron-related parameters during erythropoiesis. Clinical trials have shown that enarodustat improved anemia both in non-dialysis-dependent CKD patients and dialysis patients. The safety results in clinical trials demonstrate that enarodustat is generally well tolerated. On the basis of these results, enarodustat was approved in September 2020 in Japan for the treatment of anemia associated with CKD. This manuscript will review enarodustat, its pharmacological characteristics in preclinical studies, and its efficacy and safety in clinical trials with anemic patients in CKD.
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Affiliation(s)
- K Fukui
- Division of Nephrology and Endocrinology, The University of Tokyo Hospital, Bunkyo-ku, Tokyo, Japan.,Central Pharmaceutical Research Institute, Japan Tobacco Inc., Takatsuki, Osaka, Japan
| | - T Tanaka
- Division of Nephrology and Endocrinology, The University of Tokyo Hospital, Bunkyo-ku, Tokyo, Japan.
| | - M Nangaku
- Division of Nephrology and Endocrinology, The University of Tokyo Hospital, Bunkyo-ku, Tokyo, Japan
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5
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Affiliation(s)
- M. Ohishi
- Graduate School of Science, Hiroshima University, Higashi-Hiroshima, Japan
| | - K. Fukui
- Research and Development Center, Osaka Medical College, Takatsuki, Japan
| | | | - Y. Itoh
- Tokyo Kantei Co., Ltd, Shinagawa, Japan
| | - H. Yanagihara
- Graduate School of Science, Hiroshima University, Higashi-Hiroshima, Japan
- Tokyo Kantei Co., Ltd, Shinagawa, Japan
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Sho H, Fukui K, Yoneda S, Toyoda S, Ozawa H, Ishibashi C, Fujita Y, Eguchi H, Kozawa J, Shimomura I. Insulinoma induces a hyperinsulinemia-mediated decrease of GLUT2 and GLP1 receptor in normal pancreatic β-cells. Biochem Biophys Res Commun 2020; 534:702-706. [PMID: 33199025 DOI: 10.1016/j.bbrc.2020.11.014] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2020] [Accepted: 11/03/2020] [Indexed: 12/17/2022]
Abstract
There have been several clinical reports of transient postoperative hyperglycemia in patients with insulinoma, but the effect of insulinoma on normal β-cells has not been investigated. We examined the glucose transporter 2 (GLUT2) and glucagon-like peptide 1 receptor (GLP1R) expression in normal pancreatic β-cells of five patients with insulinoma and five patients with normal glucose tolerance (NGT) as controls. The positive rate of GLUT2-or GLP1R-positive islets in the nontumor area was calculated by the ratio with the analyzed islets. For functional in vitro analyses, q-PCR and Western blotting were performed after insulin loading on MIN6 cells. The expression rates of both GLUT2 and GLP1R were significantly lower in nontumor area islets of insulinoma patients than in patients with NGT (GLUT2: 31.6 ± 15.3% vs 95.9 ± 6.7%, p < 0.01, GLP1R: 66.8 ± 15.0% vs 96.7 ± 5.0%, p < 0.01). Exposure of MIN6 cells to high concentrations of insulin resulted in a significant decrease in GLUT2 protein for 12 h and GLP1R protein for 24 h (GLUT2; 1.00 ± 0.079 vs 0.81 ± 0.04. p = 0.02, GLP1R; 1.00 ± 0.10 vs 0.50 ± 0.24, p = 0.03) but not in those mRNAs. Our findings show that insulinoma is associated with the downregulation of GLUT2 and GLP1R expression in nontumor area islets. These phenomena may be caused by high levels of insulin.
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Affiliation(s)
- H Sho
- Departments of Metabolic Medicine, Graduate School of Medicine, Osaka University, Suita, Japan
| | - K Fukui
- Departments of Metabolic Medicine, Graduate School of Medicine, Osaka University, Suita, Japan.
| | - S Yoneda
- Departments of Metabolic Medicine, Graduate School of Medicine, Osaka University, Suita, Japan
| | - S Toyoda
- Departments of Metabolic Medicine, Graduate School of Medicine, Osaka University, Suita, Japan
| | - H Ozawa
- Departments of Metabolic Medicine, Graduate School of Medicine, Osaka University, Suita, Japan
| | - C Ishibashi
- Departments of Metabolic Medicine, Graduate School of Medicine, Osaka University, Suita, Japan
| | - Y Fujita
- Departments of Metabolic Medicine, Graduate School of Medicine, Osaka University, Suita, Japan; Departments of Community Medicine, Graduate School of Medicine, Osaka University, Suita, Japan
| | - H Eguchi
- Departments of Gastroenterological Surgery, Graduate School of Medicine, Osaka University, Suita, Japan
| | - J Kozawa
- Departments of Metabolic Medicine, Graduate School of Medicine, Osaka University, Suita, Japan; Departments of Diabetes Care Medicine, Graduate School of Medicine, Osaka University, Suita, Japan
| | - I Shimomura
- Departments of Metabolic Medicine, Graduate School of Medicine, Osaka University, Suita, Japan
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Azuma M, Kato S, Kodama S, Hayakawa K, Kagimoto M, Iguchi K, Fukuoka M, Fukui K, Iwasawa T, Utsunomiya D, Kimura K, Tamura K. Relationship between cardiac magnetic resonance derived extracellular volume fraction and myocardial strain in patients with non-ischemic dilated cardiomyopathy. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.0239] [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
The feature tracking (FT) technique has been proposed as a robust method to evaluate the myocardial strain using conventional cine magnetic resonance imaging (MRI) of the left ventricle. Data is limited regarding the relationship between FT-derived myocardial strain and diffuse myocardial fibrosis evaluated by T1 mapping in patients with non-ischemic dilated cardiomyopathy (NIDCM).
Purpose
The aim of this study was to evaluate the correlation between extracellular volume (ECV) by T1 mapping and myocardial strain by FT in patients with NIDCM.
Methods
A total of sixty-four patients with NIDCM (62±12 years) and 15 controls (62±11 years) were studied. Using a 1.5T MR scanner, pre- and post- T1 mapping images of LV wall at mid-ventricular level was acquired to calculate ECV by modified Look-Locker inversion recovery (MOLLI) sequence. Radial strain (RS), circumferential strain (CS) and longitudinal strain (LS) was assessed by FT technique. ECV and myocardial strain were compared using a 6-segment model at mid-ventricular level.
Results
Compared to the controls, the NIDCM patients had a significantly higher ECV (0.30±0.02 vs. 0.24±0.01, p<0.001) and impaired myocardial strain (RS, 24.2±3.0 vs. 52.2±6.2, p<0.001; CS, −7.5±2.1 vs. −15.3±2.2, p<0.001; LS −10.4±3.5 vs. −20.2±4.7, p<0.001, respectively). Similar results were obtained when comparing all 6 myocardial segments (segment 7–12) (all p values <0.001). In a segment-based analysis, a significant positive correlation was found between the ECV and CS (r=0.26 to 0.41; all p values <0.05), a negative correlation was found between the ECV and RS (r=−0.31 to −0.41; all p values <0.05). In a patient-based analysis, there were significant positive correlations between the ECV and CS (r=0.45, p<0.001), ECV and LS from 2-chamber view (r=0.30, p=0.006), ECV and LS from 4-chamber view (r=0.37, p<0.001). There was a significant negative correlation between the ECV and RS (r=−0.43, p<0.001) (FIGURE)
Conclusions
In NIDCM patients, severity of myocardial fibrosis evaluated by T1 mapping is associated with impaired myocardial strain by FT technique.
Correlation between the ECV and strain
Funding Acknowledgement
Type of funding source: None
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Affiliation(s)
- M Azuma
- Kanagawa Cardiovascular and Respiratory Center, Cardiology, Yokohama, Japan
| | - S Kato
- Kanagawa Cardiovascular and Respiratory Center, Cardiology, Yokohama, Japan
| | - S Kodama
- Kanagawa Cardiovascular and Respiratory Center, Cardiology, Yokohama, Japan
| | - K Hayakawa
- Kanagawa Cardiovascular and Respiratory Center, Cardiology, Yokohama, Japan
| | - M Kagimoto
- Kanagawa Cardiovascular and Respiratory Center, Cardiology, Yokohama, Japan
| | - K Iguchi
- Kanagawa Cardiovascular and Respiratory Center, Cardiology, Yokohama, Japan
| | - M Fukuoka
- Kanagawa Cardiovascular and Respiratory Center, Cardiology, Yokohama, Japan
| | - K Fukui
- Kanagawa Cardiovascular and Respiratory Center, Cardiology, Yokohama, Japan
| | - T Iwasawa
- Kanagawa Cardiovascular and Respiratory Center, Radiology, Yokohama, Japan
| | - D Utsunomiya
- Yokohama City University Hospital, Diagnostic Radiology, Yokohama, Japan
| | - K Kimura
- Yokohama City University Medical Center, Cardiology, Yokohama, Japan
| | - K Tamura
- Yokohama City University Hospital, Medical Science and Cardiorenal Medicine, Yokohama, Japan
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Azuma M, Kato S, Kodama S, Hayakawa K, Kagimoto M, Iguchi K, Fukuoka M, Fukui K, Iwasawa T, Utsunomiya D, Kimura K, Tamura K. Extracellular volume fraction by T1 mapping predicts omprovement of left ventricular ejection fraction after catheter ablation in patients with non-ischemic cardiomyopathy and atrial fibrillation. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.0261] [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
The Catheter Ablation versus Standard Conventional Therapy in Patients with Left Ventricular Dysfunction and Atrial Fibrillation (CASTLE-AF) trial has shown that the catheter ablation (CA) for atrial fibrillation (AF) significantly reduced the risk of death and hospitalization for heart failure in patients with non-ischemic dilated cardiomyopathy (NIDCM) and AF (N Engl J Med 2018; 378:417–27). In addition, the Catheter Ablation Versus Medical Rate Control in Atrial Fibrillation and Systolic Dysfunction (CAMERA-MRI) study demonstrated that the absence of myocardial fibrosis on late gadolinium enhanced (LGE) magnetic resonance imaging (MRI) is associated with improvement of left ventricular systolic function after CA in NIDCM patients with AF (J Am Coll Cardiol 2017; 70:1949–61). Extracellular volume fraction (ECV) by T1 mapping has emerges as a non-invasive mean to quantify diffuse myocardial fibrosis.
Purpose
The aim of this study was to compare the predictive value of LGE-MRI and ECV by T1 mapping for the prediction of improvement of LVEF after CA in NIDCM patients.
Methods
A total of twenty-eight patients with NIDCM and AF (age: 67±10 years; 25 (89%) male; LVEF: 34.1±8.8%) were studied. Using a 1.5T MR scanner and 32 channel cardiac coils, cine MRI, LGE-MRI, pre- and post- T1 mapping images of LV wall at mid-ventricular level (modified Look-Locker inversion recovery sequence) were acquired. Myocardial fibrosis on LGE was defined as area with >5SD signal intensity of normal myocardium. ECV from six segments of mid ventricular level were averaged for each patient. All patients underwent CA for AF, and the improvement of LVEF before and after CA were evaluated by echocardiography.
Results
All patients restored sinus rhythm after CA at the time of echocardiography. The mean LVEF was 34.1±8.8% before CA and 49.1±12.0% after CA (p<0.001), resulting an improvement of 15.0±11.8%. Significant correlation was found between improvements in LVEF and amount of fibrosis on LGE-MRI (r=−0.40, p=0.034), improvement of LVEF and ECV (r=−0.55, p=0.008). In the ROC analysis, ECV had a higher discriminative ability for the improvement of LVEF after CA compared with amount of fibrosis on LGE-MRI (AUC 0.885 vs 0.650) (Figure).
Conclusions
In NIDCM patients with AF, ECV by T1 mapping had better predictive ability for improvement of LVEF after CA in comparison to LGE-MRI.
ROC curves of ECV and LGE-MRI
Funding Acknowledgement
Type of funding source: None
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Affiliation(s)
- M Azuma
- Kanagawa Cardiovascular and Respiratory Center, Cardiology, Yokohama, Japan
| | - S Kato
- Kanagawa Cardiovascular and Respiratory Center, Cardiology, Yokohama, Japan
| | - S Kodama
- Kanagawa Cardiovascular and Respiratory Center, Cardiology, Yokohama, Japan
| | - K Hayakawa
- Kanagawa Cardiovascular and Respiratory Center, Cardiology, Yokohama, Japan
| | - M Kagimoto
- Kanagawa Cardiovascular and Respiratory Center, Cardiology, Yokohama, Japan
| | - K Iguchi
- Kanagawa Cardiovascular and Respiratory Center, Cardiology, Yokohama, Japan
| | - M Fukuoka
- Kanagawa Cardiovascular and Respiratory Center, Cardiology, Yokohama, Japan
| | - K Fukui
- Kanagawa Cardiovascular and Respiratory Center, Cardiology, Yokohama, Japan
| | - T Iwasawa
- Kanagawa Cardiovascular and Respiratory Center, Radiology, Yokohama, Japan
| | - D Utsunomiya
- Yokohama City University Hospital, Diagnostic Radiology, Yokohama, Japan
| | - K Kimura
- Yokohama City University Medical Center, Cardiology, Yokohama, Japan
| | - K Tamura
- Yokohama City University Hospital, Medical Science and Cardiorenal Medicine, Yokohama, Japan
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Mori H, Maeda A, Akashi Y, Ako J, Ikari Y, Ebina T, Sato N, Tamura K, Namiki A, Fukui K, Michishita I, Kimura K, Suzuki H. Atrial Fibrillation is related with higher in-hospital morality in acute myocardial infarction (AMI) patients from K-ACTIVE registry. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.1329] [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
The prognostic significance of atrial fibrillation (AF) on in-hospital mortality in acute myocardial infarction (AMI) patients is not fully understood in Japanese patients.
Methods
To elucidate the clinical significance of AF on in-hospital mortality in AMI patients, we analyzed the Japanese observational prospective multicenter registry of acute myocardial infarction (K-ACTIVE: Kanagawa ACuTe cardio Vacular rEgistry), which spans October 2016 to December 2019.
Results
A total of 3482 patients included 336 patients with AF and 3146 patients with sinus rhythm. Table 1 shows patient baseline characteristics. Patients with AF were significantly older than those with sinus rhythm (75 vs 67, P<0.0001). Prevalence of hypertension and hemodialysis were significantly greater in patients with AF than patients with sinus rhythm while prevalence of dyslipidemia and smoking were significantly less in patients with AF than patients with sinus rhythm. Table 2 shows characteristics of AMI. There were no significant difference in prevalence of STEMI, area of MI, Peak CK/CK-MB and prevalence of multivessel disease. However, patients with AF showed lower systolic blood pressure, faster heart rate, worse Killip category, greater prevalence of OHCA. Need of mechanical support including IABP/ECMO were greater in patients with AF than patients with sinus rhythm. In-hospital mortality was significantly higher in patients with AF than in patients with sinus rhythm (Figure, 10.4% versus 5.2%, P=0.0005). This trend didn't change even after adjustment with age and sex (Odds ratio 1.6 95% confidence interval 1.1–2.4, P=0.02).
Conclusion
AF was associated with higher in-hospital mortality in Japanese AMI patients.
Funding Acknowledgement
Type of funding source: Public grant(s) – National budget only. Main funding source(s): This work was supported by JSPS KAKENHI Grant Number JP15K09101.
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Affiliation(s)
- H Mori
- Fujigaoka Hospital, Yokohama, Japan
| | - A Maeda
- Fujigaoka Hospital, Yokohama, Japan
| | - Y Akashi
- St. Marianna University School of Medicine, Kawasaki, Japan
| | - J Ako
- Kitasato University Hospital, Sagamihara, Japan
| | - Y Ikari
- Tokai University Hospital, Isehara, Japan
| | - T Ebina
- Yokohama City University Medical Center, Yokohama, Japan
| | - N Sato
- Nippon Medical School Musashi-Kosugi Hospital, Kawasaki, Japan
| | - K Tamura
- Yokohama City University Hospital, Yokohama, Japan
| | - A Namiki
- Kanto Rosai Hospital, Kawasaki, Japan
| | - K Fukui
- Kanagawa Cardiovascular and Respiratory Center, Yokohama, Japan
| | | | - K Kimura
- Yokohama City University Medical Center, Yokohama, Japan
| | - H Suzuki
- Fujigaoka Hospital, Yokohama, Japan
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Sone H, Mori H, Maeda A, Akashi Y, Ako J, Ikari Y, Ebina T, Sato N, Tamura K, Namiki A, Fukui K, Michishita I, Kimura K, Suzuki H. P17 In-hospital mortality and clinical features of Japanese patients with acute myocardial infarction diagnosed by universal definition in real world from kanagawa-acute cardiovascular registry (K-ACTIVE). Eur Heart J 2020. [DOI: 10.1093/ehjci/ehz872.022] [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
Cardiac troponin (cTn) has been used as the preferred biomarker of myocardial injury for diagnosis of acute myocardial infraction (AMI) by universal definition. A large number of patients formerly classified by creatine kinase (CK) as unstable angina with the WHO criteria in Japan are now diagnosed by cTn as non-ST elevation myocardial infarction (NSTEMI). In this report, we aimed to understand its prevalence and clinical features of AMI diagnosed by using universal definition and the WHO criterial in real world.
Method
This registry is a cross-sectional study of 53 facilities in Kanagawa prefecture of Japan. 4372 AMI patients were enrolled who received primary percutaneous coronary intervention (PCI) between October 1, 2015 and January 29, 2019. Patients were divided into 3 groups, 3268 patients with ST elevation myocardial infarction (STEMI), 628 patients with NSTEMI patients who satisfied the WHO criteria with CK elevation beyond twice upper limit of normal (NSTEMI + CK), and 476 patients with NSTEMI who didn’t satisfy the WHO criteria without CK elevation (NSTEMI-CK).
Result
Baseline clinical characteristics of the study patients are shown in Table 1. In-hospital mortality was significantly lower in patients with NSTEMI-CK (1.9%) than in STEMI (6.0%, P < 0.001) and NSTEMI + CK (5.3%, P < 0.004) (Figure 1). Kaplan-Meier analyses for 0-30 days of cardiac death are shown in Figure 2. From day 0, the Kaplan-Meier curves began to diverge in favor of NSTEMI-CK for up to 30 days.
Conclusion
AMI patients showed distinct clinical features depends on the type. We should be aware of the difference for the diagnosis of AMI by using universal definitions.
Table 1. STEMI (n = 3268) NSTEMI + CK (n = 628) NSTEMI-CK (n = 476) STEMI vs NSTEMI + CK P value STEMI vs NSTEMI-CK P value NSTEMI + CK vs NSTEMI-CK P value Age(years) 68(59-77) 69(61-78) 70(61-79) Male 76% 77% 75% 0.54 0.74 0.47 Concomitant diseases Hypertention 65.4% 70.5% 69.3% 0.013 0.097 0.65 Diabetes 33.5% 36.5% 37.3% 0.15 0.11 0.78 Dyslipidemia 56.1% 61.2% 61.3% 0.018 0.03 0.96 Hemodialysis 2.3% 2.1% 6.8% 0.86 <0.001 0.01 Smoking 66.3% 63.1% 64.6% 0.13 0.48 0.62 Atrial fibrillation 9.6% 10.7% 14.4% 0.57 0.04 0.23 Previous MI 8.3% 17.3% 15.7% <0.001 <0.001 0.47 In-hospital mortality 6.0% 5.3% 1.9% 0.49 <0.001 0.004
Abstract P17 Figure 1. 2.
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Affiliation(s)
- H Sone
- Showa University Fujigaoka Hospital, Yokohama, Japan
| | - H Mori
- Showa University Fujigaoka Hospital, Yokohama, Japan
| | - A Maeda
- Showa University Hospital, Department of Emergency and Disaster Medicine, Tokyo, Japan
| | - Y Akashi
- St. Marianna University, Division of Cardiology, Kawasaki, Japan
| | - J Ako
- Kitasato University School of Medicine, Division of Cardiology, Sagamihara, Japan
| | - Y Ikari
- Tokai University Hospital, Division of Cardiology, Isehara, Japan
| | - T Ebina
- Yokohama City University Medical Center, Clinical laboratory center, Yokohama, Japan
| | - N Sato
- Nippon Medical University Musashi Kosugi Hospital, Division of Cardiology, Kawasaki, Japan
| | - K Tamura
- Yokohama City University, Department of Medical Science and Cardiorenal Medicine, Yokohama, Japan
| | - A Namiki
- Kanto Rosai Hospital, Division of Cardiology, Kawasaki, Japan
| | - K Fukui
- Kanagawa Cardiovascular and Respiratory Center, Division of Cardiology, Yokohama, Japan
| | - I Michishita
- Yokohama Sakae Kyosai Hospital, Division of Cardiology, Yokohama, Japan
| | - K Kimura
- Yokohama City University Medical Center, Division of Cardiology, Yokohama, Japan
| | - H Suzuki
- Showa University Fujigaoka Hospital, Yokohama, Japan
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Pestel G, Fukui K, Higashi M, Schmidtmann I, Werner C. [Meta-analyses on measurement precision of non-invasive hemodynamic monitoring technologies in adults]. Anaesthesist 2019; 67:409-425. [PMID: 29789877 DOI: 10.1007/s00101-018-0452-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
An ideal non-invasive monitoring system should provide accurate and reproducible measurements of clinically relevant variables that enables clinicians to guide therapy accordingly. The monitor should be rapid, easy to use, readily available at the bedside, operator-independent, cost-effective and should have a minimal risk and side effect profile for patients. An example is the introduction of pulse oximetry, which has become established for non-invasive monitoring of oxygenation worldwide. A corresponding non-invasive monitoring of hemodynamics and perfusion could optimize the anesthesiological treatment to the needs in individual cases. In recent years several non-invasive technologies to monitor hemodynamics in the perioperative setting have been introduced: suprasternal Doppler ultrasound, modified windkessel function, pulse wave transit time, radial artery tonometry, thoracic bioimpedance, endotracheal bioimpedance, bioreactance, and partial CO2 rebreathing have been tested for monitoring cardiac output or stroke volume. The photoelectric finger blood volume clamp technique and respiratory variation of the plethysmography curve have been assessed for monitoring fluid responsiveness. In this manuscript meta-analyses of non-invasive monitoring technologies were performed when non-invasive monitoring technology and reference technology were comparable. The primary evaluation criterion for all studies screened was a Bland-Altman analysis. Experimental and pediatric studies were excluded, as were all studies without a non-invasive monitoring technique or studies without evaluation of cardiac output/stroke volume or fluid responsiveness. Most studies found an acceptable bias with wide limits of agreement. Thus, most non-invasive hemodynamic monitoring technologies cannot be considered to be equivalent to the respective reference method. Studies testing the impact of non-invasive hemodynamic monitoring technologies as a trend evaluation on outcome, as well as studies evaluating alternatives to the finger for capturing the raw signals for hemodynamic assessment, and, finally, studies evaluating technologies based on a flow time measurement are current topics of clinical research.
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Affiliation(s)
- G Pestel
- Klinik für Anästhesiologie, Universitätsmedizin Mainz, Langenbeckstr. 1, 55131, Mainz, Deutschland.
| | - K Fukui
- Klinik für Anästhesiologie, Universitätsmedizin Mainz, Langenbeckstr. 1, 55131, Mainz, Deutschland
| | - M Higashi
- Klinik für Anästhesiologie, Universitätsmedizin Mainz, Langenbeckstr. 1, 55131, Mainz, Deutschland
| | - I Schmidtmann
- Institut für Medizinische Biometrie, Epidemiologie und Informatik (IMBEI), Universitätsmedizin Mainz, Mainz, Deutschland
| | - C Werner
- Klinik für Anästhesiologie, Universitätsmedizin Mainz, Langenbeckstr. 1, 55131, Mainz, Deutschland
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12
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Fukui K, Masumoto N, Shiroma N, Kanou A, Sasada S, Emi A, Kadoya T, Yokozaki M, Arihiro K, Okada M. Novel tumor-infiltrating lymphocytes ultrasonography score based on ultrasonic tissue findings predicts tumor-infiltrating lymphocytes in breast cancer. Breast Cancer 2019; 26:573-580. [DOI: 10.1007/s12282-019-00958-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2018] [Accepted: 02/24/2019] [Indexed: 01/23/2023]
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Kanou A, Masumoto N, Shiroma N, Fukui K, Sasada S, Emi A, Kadoya T, Yokozaki M, Arihiro K, Okada M. Abstract P6-02-11: The TILs-US scores based on ultrasonography can predict lymphocyte-predominant breast cancer before surgery. Cancer Res 2019. [DOI: 10.1158/1538-7445.sabcs18-p6-02-11] [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: 11/16/2022]
Abstract
Abstract
[Purpose]
Tumor-infiltrating lymphocytes (TILs) has been shown to be useful for predicting outcomes after surgery in breast cancer, and while TILs can be evaluated in preoperative biopsy tissue, heterogeneous distribution of TILs requires examination of all biopsied tissue samples.
We gave scores to preoperative ultrasonography (US) images with characteristics indicative of lymphocyte-predominant breast cancer (LPBC) and attempted to apply these for diagnostic prediction of LPBC. In this study, TILs-US scores based on preoperative US were assessed for their usefulness in predicting LPBC, the diagnosis of which was confirmed with postoperative pathology.
[Methods]
We evaluated 161 patients with invasive breast cancer between January 2014 and December 2017. All patients were treated by either mastectomy or breast-conserving surgery. Stromal lymphocytes were evaluated on preoperative biopsy tissues and surgical pathological specimens. Breast cancer samples with ≥ 50% stromal TILs were defined as pre-LPBC (preoperative biopsy tissues) and LPBC (surgical pathological specimens). TILs-US score was calculated from US before curative surgery. Based on clinicopathological factors including TILs-US scores based on preoperative US and pre-LPBC indicators, determinants useful for prediction of LPBC were examined.
[Results]
There were 39 cases of LPBCs and 122 cases of non-LPBCs in surgical pathological specimens. We set TILs-US score cut-offs for predicting LPBC at 4 points based on the receiver operating characteristics (ROC) curves (AUC, 0.88). There were significant predictors for LPBC in maltivariate logistic analysis (TILs-US score: OR26.8, p<0.001; pre- LPBC: 18.6, p=0.002; HER-2: OR9.2, p=0.009) in preoperative clinicopathological factor. The sensitivity, specificity and accuracy of TILs-US score for predicting LPBC were 0.74 (0.62-0.84), 0.89 (0.85-0.92) and 0.85 (0.79-0.90). Those of pre-LPBC were 0.51(0.42-0.55), 0.98 (0.96-1.00) and 0.87 (0.82-0.89), and those of HER2 were 0.28(0.19-0.36), 0.94(0.91-0.97) and 0.78 (0.74-0.82), respectively. The sensitivity of TILs-US score for predicting LPBC was significantly greater than those of pre- LPBC (p=0.04) and HER2 (p<0.001). On the other hand, the specificity of pre- LPBC for predicting LPBC was significantly greater than that of TILs-US score(p=0.002).
The sensitivity, specificity and accuracy of predicting LPBCPerformance measureTILs-US score (95%CI)Preoperative biopsyHER-2P, TILs-US score vs. Preoperative biopsyP, TILs-USscore vs. HER-2Sensitivity0.74 (0.62-0.84)0.51 (0.42-0.55)0.28 (0.19-0.36)0.04<0.001Specificity0.89 (0.85-0.92)0.98 (0.96-1.00)0.94 (0.91-0.97)0.0020.11Accuracy0.85 (0.79-0.90)0.87 (0.82-0.89)0.78 (0.74-0.82)0.230.11
[Conclusions]
TILs-US scores are an important factor that can predict LPBC preoperatively. The TILs-US score has particularly high sensitivity and may be an applicable index in the preoperative evaluation for LPBC.
Citation Format: Kanou A, Masumoto N, Shiroma N, Fukui K, Sasada S, Emi A, Kadoya T, Yokozaki M, Arihiro K, Okada M. The TILs-US scores based on ultrasonography can predict lymphocyte-predominant breast cancer before surgery [abstract]. In: Proceedings of the 2018 San Antonio Breast Cancer Symposium; 2018 Dec 4-8; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2019;79(4 Suppl):Abstract nr P6-02-11.
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Affiliation(s)
- A Kanou
- Hiroshima University Hospital, Hiroshima City, Hiroshima, Japan; Hiroshima University, Hiroshima City, Hiroshima, Japan
| | - N Masumoto
- Hiroshima University Hospital, Hiroshima City, Hiroshima, Japan; Hiroshima University, Hiroshima City, Hiroshima, Japan
| | - N Shiroma
- Hiroshima University Hospital, Hiroshima City, Hiroshima, Japan; Hiroshima University, Hiroshima City, Hiroshima, Japan
| | - K Fukui
- Hiroshima University Hospital, Hiroshima City, Hiroshima, Japan; Hiroshima University, Hiroshima City, Hiroshima, Japan
| | - S Sasada
- Hiroshima University Hospital, Hiroshima City, Hiroshima, Japan; Hiroshima University, Hiroshima City, Hiroshima, Japan
| | - A Emi
- Hiroshima University Hospital, Hiroshima City, Hiroshima, Japan; Hiroshima University, Hiroshima City, Hiroshima, Japan
| | - T Kadoya
- Hiroshima University Hospital, Hiroshima City, Hiroshima, Japan; Hiroshima University, Hiroshima City, Hiroshima, Japan
| | - M Yokozaki
- Hiroshima University Hospital, Hiroshima City, Hiroshima, Japan; Hiroshima University, Hiroshima City, Hiroshima, Japan
| | - K Arihiro
- Hiroshima University Hospital, Hiroshima City, Hiroshima, Japan; Hiroshima University, Hiroshima City, Hiroshima, Japan
| | - M Okada
- Hiroshima University Hospital, Hiroshima City, Hiroshima, Japan; Hiroshima University, Hiroshima City, Hiroshima, Japan
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Fukui K, Masumoto N, Shiroma N, Kanou A, Yokozaki M, Sasada S, Emi A, Kadoya T, Arihiro K, Okada M. Abstract P6-02-06: Characteristics of lymphocyte-predominant breast cancer in ultrasound images and their application to diagnostic prediction. Cancer Res 2019. [DOI: 10.1158/1538-7445.sabcs18-p6-02-06] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
[Purpose]
Tumor-infiltrating lymphocytes (TILs) is a prognostic factor for breast cancer, however, an accurate and simple evaluation method remains elusive. Therefore, we focused on findings characteristic of lymphocyte-predominant breast cancer (LPBC) in ultrasound (US) images. In this study, the application of preoperative US image assessment to diagnostic prediction of LPBC evaluated from postoperative pathological specimens, was appraised.
[Methods]
We evaluated 191 patients with invasive breast cancer between January 2014 and December 2017. All patients were treated by either mastectomy or breast-conserving surgery. Stromal lymphocytes were evaluated on surgical pathological specimens. Breast cancer samples with ≥ 50% stromal TILs were defined as LPBC. Preoperative US was performed in all cases and images were examined for characteristics indicative of TILs. Scores were given to US images with characteristic TILs and these TILs-US scores were assessed for their application to predict LPBC.
[Results]
There were 39 cases of LPBCs and 122 cases of non-LPBCs in surgical pathological specimens.
The characteristic US image findings predicting LPBC were shape (more lobulated), internal echo level (weaker) and posterior echoes (stronger). The TILs-US scores were given based on these three ultrasound tissue characterizations.We set TILs-US score cut-offs for predicting LPBC at 4 points (Sensitivity, 0.73; specificity, 0.87; accuracy, 0.83) based on the receiver operating characteristics (ROC) curves (AUC, 0.88). There were significant predictors for LPBC in maltivariate logistic analysis (Nuclear Grade (NG): OR3.4, p=0.02; ER: 5.7, p =0.007;HER-2: OR4.1, p=0.04; TILs-US score2: OR14.9, p<0.001) in preoperative clinicopathological factor. The sensitivity, specificity and accuracy of NG for predicting LPBC were 0.75, 0.69 and 0.71. Those of ER and HER2 were 0.33, 0.96 and 0.79.Sensitivity, specificity, and accuracy of NG, ER, and HER2 diagnoses were all lower than the TILs-US score, and the TILs-US score showed the best diagnostic ability.
The sensitivity, specificity and accuracy of predicting LPBCPerformance measureTILs-US score (95%CI)NGER or HER-2P, TILs-US score vs. NG,P, TILs-USscore vs. ER or HER-2Sensitivity0.73 (0.63-0.81)0.75 (0.64-0.84)0.327 (0.24-0.39)0.08<0.001specificity0.87 (0.83-0.90)0.69 (0.65-0.72)0.957 (0.93-0.98)<0.001<0.001accuracy0.83 (0.77-0.88)0.707 (0.65-0.376)0.785 (0.74-0.82)0.0040.25
Conclusions
LPBC has characteristic ultrasound tissue characterizations in US images. Thus, TILs-US scores based on US may be applicable to accurate and convenient preoperative diagnosis of LPBC.
Citation Format: Fukui K, Masumoto N, Shiroma N, Kanou A, Yokozaki M, Sasada S, Emi A, Kadoya T, Arihiro K, Okada M. Characteristics of lymphocyte-predominant breast cancer in ultrasound images and their application to diagnostic prediction [abstract]. In: Proceedings of the 2018 San Antonio Breast Cancer Symposium; 2018 Dec 4-8; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2019;79(4 Suppl):Abstract nr P6-02-06.
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Affiliation(s)
- K Fukui
- Hiroshima University Hospital, Hiroshima, Japan; Hiroshima University, Hiroshima, Japan
| | - N Masumoto
- Hiroshima University Hospital, Hiroshima, Japan; Hiroshima University, Hiroshima, Japan
| | - N Shiroma
- Hiroshima University Hospital, Hiroshima, Japan; Hiroshima University, Hiroshima, Japan
| | - A Kanou
- Hiroshima University Hospital, Hiroshima, Japan; Hiroshima University, Hiroshima, Japan
| | - M Yokozaki
- Hiroshima University Hospital, Hiroshima, Japan; Hiroshima University, Hiroshima, Japan
| | - S Sasada
- Hiroshima University Hospital, Hiroshima, Japan; Hiroshima University, Hiroshima, Japan
| | - A Emi
- Hiroshima University Hospital, Hiroshima, Japan; Hiroshima University, Hiroshima, Japan
| | - T Kadoya
- Hiroshima University Hospital, Hiroshima, Japan; Hiroshima University, Hiroshima, Japan
| | - K Arihiro
- Hiroshima University Hospital, Hiroshima, Japan; Hiroshima University, Hiroshima, Japan
| | - M Okada
- Hiroshima University Hospital, Hiroshima, Japan; Hiroshima University, Hiroshima, Japan
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Takahashi N, Matsushita H, Umezawa R, Yamamoto T, Ishikawa Y, Katagiri Y, Tasaka S, Takeda K, Fukui K, Kadoya N, Ito K, Jingu K. Hypofractionated Radiation Therapy for Anaplastic Thyroid Carcinoma: 15 Years of Experience in a Single Institution. Int J Radiat Oncol Biol Phys 2018. [DOI: 10.1016/j.ijrobp.2018.07.1096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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16
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Ikeda S, Yokota T, Fukui K, Hoshino T. P3.01-41 Anatomical and Clinical Basis of #11 LN by Systematic Bilateral Mediastinal Nodal Dissection for Left Lung Cancer through Median Sternotomy. J Thorac Oncol 2018. [DOI: 10.1016/j.jtho.2018.08.1601] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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17
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Fukui K, Ikeda S, Yokota T, Hoshino T. P3.CR-01 To Better Understand the Anatomical Proximity of Cardiac Plexus to Prevent Lethal Arrhythmias Associated with Lung Cancer Surgery. J Thorac Oncol 2018. [DOI: 10.1016/j.jtho.2018.08.1980] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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18
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Numata Y, Kaneuji A, Kerboull L, Takahashi E, Ichiseki T, Fukui K, Tsujioka J, Kawahara N. Biomechanical behaviour of a French femoral component with thin cement mantle: The 'French paradox' may not be a paradox after all. Bone Joint Res 2018; 7:485-493. [PMID: 30123498 PMCID: PMC6076357 DOI: 10.1302/2046-3758.77.bjr-2017-0288.r2] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Objective Cement thickness of at least 2 mm is generally associated with more favorable results for the femoral component in cemented hip arthroplasty. However, French-designed stems have shown favorable outcomes even with thin cement mantle. The biomechanical behaviors of a French stem, Charnley-Marcel-Kerboull (CMK) and cement were researched in this study. Methods Six polished CMK stems were implanted into a composite femur, and one million times dynamic loading tests were performed. Stem subsidence and the compressive force at the bone-cement interface were measured. Tantalum ball (ball) migration in the cement was analyzed by micro CT Results The cement thickness of 95 % of the proximal and middle region was less than 2.5 mm. A small amount of stem subsidence was observed even with collar contact. The greatest compressive force was observed at the proximal medial region and significant positive correlation was observed between stem subsidence and compressive force. 9 of 11 balls in the medial region moved to the horizontal direction more than that of the perpendicular direction. The amount of ball movement distance in the perpendicular direction was 59 to 83% of the stem subsidence, which was thought to be slip in the cement of the stem. No cement defect and no cement breakage were seen. Conclusion Thin cement in CMK stems produced effective hoop stress without excessive stem and cement subsidence. Polished CMK stem may work like force-closed fixation in short-term experiment. Cite this article: Y. Numata, A. Kaneuji, L. Kerboull, E. Takahashi, T. Ichiseki, K. Fukui, J. Tsujioka, N. Kawahara. Biomechanical behaviour of a French femoral component with thin cement mantle: The ‘French paradox’ may not be a paradox after all. Bone Joint Res 2018;7:485–493. DOI: 10.1302/2046-3758.77.BJR-2017-0288.R2.
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Affiliation(s)
- Y Numata
- Department of Orthopaedic Surgery, Kanazawa Medical University, Ishikawa, Japan
| | - A Kaneuji
- Department of Orthopaedic Surgery, Kanazawa Medical University, Ishikawa, Japan
| | - L Kerboull
- Marcel Kerboull Institute, Paris, France
| | - E Takahashi
- Department of Orthopaedic Surgery, Kanazawa Medical University, Ishikawa, Japan
| | - T Ichiseki
- Department of Orthopaedic Surgery, Kanazawa Medical University, Ishikawa, Japan
| | - K Fukui
- Department of Orthopaedic Surgery, Kanazawa Medical University, Ishikawa, Japan
| | - J Tsujioka
- Department of Orthopaedic Surgery, Kanazawa Medical University, Ishikawa, Japan
| | - N Kawahara
- Department of Orthopaedic Surgery, Kanazawa Medical University, Ishikawa, Japan
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Kato S, Saito N, Asahina N, Iinuma N, Kamimura D, Nakachi T, Fukui K, Iwasawa T, Kosuge M, Kimura K, Tamura K. 3011Prognostic value of magnetic resonance imaging derived coronary flow reserve for patients with diabetes mellitus. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy563.3011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- S Kato
- Kanagawa Cardiovascular and Respiratory Center, Cardiology, Yokohama, Japan
| | - N Saito
- Kanagawa Cardiovascular and Respiratory Center, Cardiology, Yokohama, Japan
| | - N Asahina
- Kanagawa Cardiovascular and Respiratory Center, Cardiology, Yokohama, Japan
| | - N Iinuma
- Kanagawa Cardiovascular and Respiratory Center, Cardiology, Yokohama, Japan
| | - D Kamimura
- Kanagawa Cardiovascular and Respiratory Center, Cardiology, Yokohama, Japan
| | - T Nakachi
- Kanagawa Cardiovascular and Respiratory Center, Cardiology, Yokohama, Japan
| | - K Fukui
- Kanagawa Cardiovascular and Respiratory Center, Cardiology, Yokohama, Japan
| | - T Iwasawa
- Kanagawa Cardiovascular and Respiratory Center, Cardiology, Yokohama, Japan
| | - M Kosuge
- Yokohama City University Medical Center, Cardiology, Yokohama, Japan
| | - K Kimura
- Yokohama City University Medical Center, Cardiology, Yokohama, Japan
| | - K Tamura
- Yokohama City University, Yokohama, Japan
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Kato S, Saito N, Asahina N, Iinuma N, Kamimura D, Nakachi T, Fukui K, Iwasawa T, Kosuge M, Kimura K, Tamura K. P5639Myocardial extracellular volume assessed by cardiac magnetic resonance T1 mapping as a marker of diastolic function: comparative study of CMR and strain echocardiography. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy566.p5639] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- S Kato
- Kanagawa Cardiovascular and Respiratory Center, Cardiology, Yokohama, Japan
| | - N Saito
- Kanagawa Cardiovascular and Respiratory Center, Cardiology, Yokohama, Japan
| | - N Asahina
- Kanagawa Cardiovascular and Respiratory Center, Cardiology, Yokohama, Japan
| | - N Iinuma
- Kanagawa Cardiovascular and Respiratory Center, Cardiology, Yokohama, Japan
| | - D Kamimura
- Kanagawa Cardiovascular and Respiratory Center, Cardiology, Yokohama, Japan
| | - T Nakachi
- Kanagawa Cardiovascular and Respiratory Center, Cardiology, Yokohama, Japan
| | - K Fukui
- Kanagawa Cardiovascular and Respiratory Center, Cardiology, Yokohama, Japan
| | - T Iwasawa
- Kanagawa Cardiovascular and Respiratory Center, Cardiology, Yokohama, Japan
| | - M Kosuge
- Yokohama City University Medical Center, Cardiology, Yokohama, Japan
| | - K Kimura
- Yokohama City University Medical Center, Cardiology, Yokohama, Japan
| | - K Tamura
- Yokohama City University, Yokohama, Japan
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Nawa T, Fukui K, Nakayama T, Sagawa M, Nakagawa T, Ichimura H, Mizoue T. MA 14.06 Population Based Cohort Study to Evaluate Lung Cancer Screening Using Low Dose CT in Hitachi City. J Thorac Oncol 2017. [DOI: 10.1016/j.jtho.2017.09.576] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Fujioka M, Hayashida K, Fukui K, Ishiyama S, Saijo H, Taniguchi K. Venous superdrained gastric tube pull-up procedure for hypopharyngeal and cervical esophageal reconstruction reduces postoperative anastomotic leakage and stricture. Dis Esophagus 2017; 30:1-6. [PMID: 28575244 DOI: 10.1093/dote/dox024] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/06/2016] [Accepted: 03/07/2017] [Indexed: 12/11/2022]
Abstract
Gastric pull-up is a common procedure to reconstruct the continuity of the upper digestive tract after esophageal resection. However, this technique sometimes causes postoperative anastomotic leakage or stricture, resulting from insufficient blood flow at the distal end. To overcome this problem, additional microvascular venous anastomoses were performed. The purpose of this study was to compare the outcomes of post-surgical anastomotic leakage and stricture in patients with and without additional microvascular venous superdrainage after cervical esophageal and hypopharyngeal resection and gastric tube reconstruction. A total of 29 consecutive patients with esophageal or hypopharyngeal cancer who underwent total esophagectomy and hypopharyngectomy with gastric tube reconstruction in the National Organization Nagasaki Medical Center between April 2014 and May 2016 were analyzed in this study. Of these patients, 20 underwent additional venous anastomoses (superdrainage group), and 9 did not undergo additional procedures (standard group). We compared the frequency of post-surgical stricture and leakage in the two groups retrospectively. Three of nine patients (33.3%) developed postoperative leakage in the standard group, and 1 of 20 (5.0%) did so in the superdrainage group. Six of nine patients (66.7%) showed postoperative anastomotic stricture in the standard group, but none did so in the superdrainage group. Patients who did not undergo additional venous superdrainage were significantly more likely to develop postsurgical leakage (P < 0.05, Chi-square test) and anastomotic stricture (P < 0.001, Chi-square test). Our study revealed that only additional venous anastomoses could reduce the incidence of postoperative anastomotic leakage and stricture. This procedure is of merit to perform after total esophagectomy and hypopharyngectomy with gastric tube reconstruction.
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Affiliation(s)
- M Fujioka
- Department of Plastic and Reconstructive Surgery, Nagasaki University, and Department of Plastic and Reconstructive Surgery, Clinical Research Center, National Hospital Organization Nagasaki Medical Center
| | - K Hayashida
- Departments of Plastic and Reconstructive Surgery
| | - K Fukui
- Departments of Plastic and Reconstructive Surgery
| | - S Ishiyama
- Departments of Plastic and Reconstructive Surgery
| | - H Saijo
- Departments of Plastic and Reconstructive Surgery
| | - K Taniguchi
- General Surgery, National Hospital Organization Nagasaki Medical Center, Nagasaki, Japan
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Kato S, Saito N, Nakachi T, Fukui K, Iwasawa T, Taguri M, Kosuge M, Kimura K. 293Prognostic significance of coronary flow reserve evaluated by phase contrast cine magnetic resonance imaging for patients with known or suspected coronary artery disease. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx501.293] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Koide M, Matsuo A, Fukui K, Fujimoto T, Shimoo S, Takamatsu K, Kyodo A, Irie D, Tsubakimoto Y, Isodono K, Sakatani T, Inoue K, Fujita H. P3353Cholesterol crystal depth in coronary atherosclerotic plaques: a novel index of plaque vulnerability using optical frequency domain imaging. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx504.p3353] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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25
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Fukui K, Nakamura S, Nakanishi A, Okihiro S, Takatsu H. CALCIUM INFLUX ACCELERATES NEURITE DEGENERATION VIA MITOCHONDRIAL-DEPENDENT OXIDATION. Innov Aging 2017. [DOI: 10.1093/geroni/igx004.4209] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- K. Fukui
- Shibaura Institute of Technology, Saitama, Japan,
| | - S. Nakamura
- Shibaura Institute of Technology, Saitama, Japan,
| | - A. Nakanishi
- Shibaura Institute of Technology, Saitama, Japan,
| | - S. Okihiro
- Shibaura Institute of Technology, Saitama, Japan,
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Takahashi E, Kaneuji A, Tsuda R, Numata Y, Ichiseki T, Fukui K, Kawahara N. The influence of cement thickness on stem subsidence and cement creep in a collarless polished tapered stem: When are thick cement mantles detrimental? Bone Joint Res 2017; 6:351-357. [PMID: 28566327 PMCID: PMC5457643 DOI: 10.1302/2046-3758.65.bjr-2017-0028.r1] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/27/2017] [Accepted: 03/14/2017] [Indexed: 12/30/2022] Open
Abstract
Objectives Favourable results for collarless polished tapered stems have been reported, and cement creep due to taper slip may be a contributing factor. However, the ideal cement thickness around polished stems remains unknown. We investigated the influence of cement thickness on stem subsidence and cement creep. Methods We cemented six collarless polished tapered (CPT) stems (two stems each of small, medium and large sizes) into composite femurs that had been reamed with a large CPT rasp to achieve various thicknesses of the cement mantle. Two or three tantalum balls were implanted in the proximal cement in each femur. A cyclic loading test was then performed for each stem. The migration of the balls was measured three-dimensionally, using a micro-computed tomography (CT) scanner, before and after loading. A digital displacement gauge was positioned at the stem shoulder, and stem subsidence was measured continuously by the gauge. Final stem subsidence was measured at the balls at the end of each stem. Results A strong positive correlation was observed between mean cement thickness and stem subsidence in the CT slices on the balls. In the small stems, the balls moved downward to almost the same extent as the stem. There was a significant negative correlation between cement thickness and the horizontal:downward ratio of ball movement. Conclusion Collarless polished tapered stems with thicker cement mantles resulted in greater subsidence of both stem and cement. This suggests that excessive thickness of the cement mantle may interfere with effective radial cement creep. Cite this article: E. Takahashi, A. Kaneuji, R. Tsuda, Y. Numata, T. Ichiseki, K. Fukui, N. Kawahara. The influence of cement thickness on stem subsidence and cement creep in a collarless polished tapered stem: When are thick cement mantles detrimental? Bone Joint Res 2017;6:–357. DOI: 10.1302/2046-3758.65.BJR-2017-0028.R1.
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Affiliation(s)
- E Takahashi
- Department of Orthopaedic Surgery, Kanazawa Medical University, Daigaku, Uchinada-machi, Kahoku-gun, Ishikawa 920-0293, Japan
| | - A Kaneuji
- Department of Orthopaedic Surgery, Kanazawa Medical University, Daigaku, Uchinada-machi, Kahoku-gun, Ishikawa 920-0293, Japan
| | - R Tsuda
- Department of Orthopaedic Surgery, Kanazawa Medical University, Daigaku, Uchinada-machi, Kahoku-gun, Ishikawa 920-0293, Japan
| | - Y Numata
- Department of Orthopaedic Surgery, Kanazawa Medical University, Daigaku, Uchinada-machi, Kahoku-gun, Ishikawa 920-0293, Japan
| | - T Ichiseki
- Department of Orthopaedic Surgery, Kanazawa Medical University, Daigaku, Uchinada-machi, Kahoku-gun, Ishikawa 920-0293, Japan
| | - K Fukui
- Department of Orthopaedic Surgery, Kanazawa Medical University, Daigaku, Uchinada-machi, Kahoku-gun, Ishikawa 920-0293, Japan
| | - N Kawahara
- Department of Orthopaedic Surgery, Kanazawa Medical University, Daigaku, Uchinada-machi, Kahoku-gun, Ishikawa 920-0293, Japan
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Kobayashi S, Tomokuni A, Gotoh K, Takahashi H, Akita H, Marubashi S, Yamada T, Teshima T, Fukui K, Fujiwara Y, Sakon M. A retrospective analysis of the clinical effects of neoadjuvant combination therapy with full-dose gemcitabine and radiation therapy in patients with biliary tract cancer. Eur J Surg Oncol 2017; 43:763-771. [DOI: 10.1016/j.ejso.2016.12.008] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2016] [Revised: 12/06/2016] [Accepted: 12/16/2016] [Indexed: 12/27/2022] Open
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Arizaga MV, Yamamoto SI, Tanaka D, Fukui K, Nohara N, Nishikawa T, Watanabe K, Niino T. Cryopreservation of in vitro Shoot Tips of Ulluco (Ullucus tuberosus Cal.) Using D Cryo-Plate Method. Cryo Letters 2017; 38:419-427. [PMID: 29734437] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
UNLABELLED BACKGROUND: Maintenance of in vitro collections of ulluco (Ullucus tuberosus Cal.) is cumbersome and costly in an ex-situ genebank. An alternative method for long term preservation which is safe and cost-effective is required. OBJECTIVE To apply a novel cryopreservation procedure using the cryo-plate system to improve the long-term conservation of ulluco. MATERIALS AND METHODS Initially V and D cryo-plate methods were tested, subsequently the D cryo-plate method was selected for ulluco cryopreservation. The D cryo-plate procedures were optimized for post-LN regrowth procedures including cold-hardening, sucrose addition in alginate gel, and duration of LS treatment. Optimized procedures were tested with 11 ulluco lines. RESULTS Shoot tips were isolated from cold-hardened shoots for 3-4 weeks at 5 degree C were excised to 1.0-1.5 mm long and 0.5 mm wide and precultured for 16h at 25 degree C on MS with 0.3 M sucrose. The shoot tips were attached on the cryo-plates by alginate gel with 0.4M sucrose. The cryo-plates with attached shoot tips were treated with 2.0 M glycerol and 1.0 M sucrose solution for 90 min at 25 degree C and dehydrated on filter paper in a Petri dish by air current flow at 25 degree C for 45 min before direct immersion in LN. This optimized procedure was applied to shoot tips of 11 ulluco lines, resulting regrowth ranging from 73 % to 97 %, with an average of 90 % post-LN regrowth. CONCLUSION D cryo-plate is a practical and simple procedure for cryo-storage of in vitro grown ulluco shoot tips in an ex situ genebank.
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Affiliation(s)
- M V Arizaga
- Graduate School of Life and Environmental Sciences, University of Tsukuba, Tsukuba Japan
| | | | - D Tanaka
- NARO Genetic Resources Center, Tsukuba, Japan
| | - K Fukui
- NARO Genetic Resources Center, Tsukuba, Japan
| | - N Nohara
- NARO Genetic Resources Center, Tsukuba, Japan
| | - T Nishikawa
- NARO Genetic Resources Center, Tsukuba, Japan
| | - K Watanabe
- Gene Research Center, University of Tsukuba, Tsukuba, Japan
| | - T Niino
- Gene Research Center, University of Tsukuba, Tsukuba, Japan
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Ichimura K, Fukumoto M, Islam MM, Islam MS, Shimizu K, Fukui K, Ohuchi M, Nojiri K, Terakado A, Yoshikawa M, Ezumi N, Sakamoto M, Nakashima Y. Measurement of neutral gas pressure in the D-module of GAMMA 10/PDX by using ASDEX type fast ionization gauge. Rev Sci Instrum 2016; 87:11D424. [PMID: 27910550 DOI: 10.1063/1.4960536] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
In the divertor simulation experiments in the GAMMA 10/PDX tandem mirror, pressure of the neutral gas was investigated by using a fast ionization gauge. The gauge was absolutely calibrated for hydrogen gas by using a capacitance manometer. Change of the gauge sensitivity due to the magnetic field of GAMMA 10/PDX was also evaluated. The typical gas pressure measured in detached plasma experiments was 0.1-10 Pa. The degree of plasma detachment determined from the reduction of heat flux was enhanced as the gas pressure increases. Rapid increase of the gas pressure under the plasma flow was also observed.
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Affiliation(s)
- K Ichimura
- Plasma Research Center, University of Tsukuba, 1-1-1 Tennoudai, Tsukuba, Ibaraki, Japan
| | - M Fukumoto
- National Institutes for Quantum and Radiological Science and Technology, 801-1 Mukouyama, Naka, Ibaraki, Japan
| | - M M Islam
- Plasma Research Center, University of Tsukuba, 1-1-1 Tennoudai, Tsukuba, Ibaraki, Japan
| | - M S Islam
- Plasma Research Center, University of Tsukuba, 1-1-1 Tennoudai, Tsukuba, Ibaraki, Japan
| | - K Shimizu
- Plasma Research Center, University of Tsukuba, 1-1-1 Tennoudai, Tsukuba, Ibaraki, Japan
| | - K Fukui
- Plasma Research Center, University of Tsukuba, 1-1-1 Tennoudai, Tsukuba, Ibaraki, Japan
| | - M Ohuchi
- Plasma Research Center, University of Tsukuba, 1-1-1 Tennoudai, Tsukuba, Ibaraki, Japan
| | - K Nojiri
- Plasma Research Center, University of Tsukuba, 1-1-1 Tennoudai, Tsukuba, Ibaraki, Japan
| | - A Terakado
- Plasma Research Center, University of Tsukuba, 1-1-1 Tennoudai, Tsukuba, Ibaraki, Japan
| | - M Yoshikawa
- Plasma Research Center, University of Tsukuba, 1-1-1 Tennoudai, Tsukuba, Ibaraki, Japan
| | - N Ezumi
- Plasma Research Center, University of Tsukuba, 1-1-1 Tennoudai, Tsukuba, Ibaraki, Japan
| | - M Sakamoto
- Plasma Research Center, University of Tsukuba, 1-1-1 Tennoudai, Tsukuba, Ibaraki, Japan
| | - Y Nakashima
- Plasma Research Center, University of Tsukuba, 1-1-1 Tennoudai, Tsukuba, Ibaraki, Japan
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Tsuchigame T, Ogata Y, Sumi M, Fukui K, Saito R, Nakashima K, Urata J, Arakawa A, Saito Y, Takahashi M. Differential Diagnosis of Gastric Adenoma and Type IIA Early Gastric Cancer. Acta Radiol 2016. [DOI: 10.1177/028418519103200110] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
The endoscopic and radiographic findings of 45 gastric adenomas in 39 patients were followed for 6 months to 13 years and compared with type IIa early gastric cancer observed in 9 patients. Difficulties in the differential diagnosis of these disorders were evaluated. The following features were suggestive of gastric adenomas: clustered lesions; protuberance with gentle slope; smooth surface; and relatively young patients. Discrimination of adenoma from type IIa early gastric cancer is often difficult by visual observation alone; biopsy was essential in most patients. A group III adenoma verified on biopsy should be followed closely because the lesion may harbor a cancer (so-called carcinoma-in-adenoma) or a cancer may later develop.
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Fukui K, Trindade CAC, Briggs KK, Philippon MJ. Arthroscopy of the hip for patients with mild to moderate developmental dysplasia of the hip and femoroacetabular impingement. Bone Joint J 2015; 97-B:1316-21. [DOI: 10.1302/0301-620x.97b10.35303] [Citation(s) in RCA: 71] [Impact Index Per Article: 7.9] [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: 11/05/2022]
Abstract
The purpose of this study was to determine patient-reported outcomes of patients with mild to moderate developmental dysplasia of the hip (DDH) and femoroacetabular impingement (FAI) undergoing arthroscopy of the hip in the treatment of chondrolabral pathology. A total of 28 patients with a centre-edge angle between 15° and 19° were identified from an institutional database. Their mean age was 34 years (18 to 53), with 12 female and 16 male patients. All underwent labral treatment and concomitant correction of FAI. There were nine reoperations, with two patients requiring revision arthroscopy, two requiring periacetabular osteotomy and five needing total hip arthroplasty. Patients who required further major surgery were more likely to be older, male, and to have more severe DDH with a larger alpha angle and decreased joint space. At a mean follow-up of 42 months (24 to 89), the mean modified Harris hip score improved from 59 (20 to 98) to 82 (45 to 100; p < 0.001). The mean Western Ontario and McMaster Universities Osteoarthritis Index score improved from 30 (1 to 61) to 16 (0 to 43; p < 0.001). Median patient satisfaction was 9.0/10 (1 to 10). Patients reported excellent improvement in function following arthroscopy of the hip. This study shows that with proper patient selection, arthroscopy of the hip can be successful in the young patient with mild to moderate DDH and FAI. Cite this article: Bone Joint J 2015;97-B:1316–21.
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Affiliation(s)
- K. Fukui
- Steadman Philippon Research Institute, 181
W. Meadow Dr. Ste 1000, 81657, USA
| | - C. A. C. Trindade
- Steadman Philippon Research Institute, 181
W. Meadow Dr. Ste 1000, 81657, USA
| | - K. K. Briggs
- Steadman Philippon Research Institute, 181
W. Meadow Dr. Ste 1000, 81657, USA
| | - M. J. Philippon
- The Steadman Clinic and Steadman Philippon
Research Institute, 181 W. Meadow Dr. Ste
1000, 81657, USA
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Fukui K, Masuda A, Hosono A, Suwabe R, Yamashita K, Shinkai T, Urano S. Changes in microtubule-related proteins and autophagy in long-term vitamin E-deficient mice. Free Radic Res 2014; 48:649-58. [PMID: 24568262 DOI: 10.3109/10715762.2014.898295] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Vitamin E deficiency induces neuronal dysfunction and while oxidative stress is likely to be involved in mediating this process, the detailed mechanisms remain to be elucidated. Previously, we found axonal degeneration in the hippocampal CA1 region in vitamin E-deficient mice of 6 months of age (long-term). However, 3 month-old (short-term) vitamin E-deficient mice did not exhibit axonal degeneration in same region. In order to characterize the mechanisms involved in axonal degeneration in long-term vitamin E-deficient mice, we examined changes in microtubule-related proteins. Long-term vitamin E-deficiency led to significantly increased expression of the phosphorylated form of collapsin response mediator protein (CRMP)-2 compared to short-term deficiency. It is well known that CRMP-2 plays a crucial role in the maintenance of neurite function. Similarly, long-term vitamin E-deficiency significantly decreased the expression of silent mating type information regulation (SIRT)-2 mRNA compared to short-term deficiency. SIRT-2 belongs to a family of class III histone deacetylases (HDACs) and functions in the deacetylation of tubulins. Furthermore, the expression of microtubule-associated protein light chain (MAP-LC)3-2, which is a key autophagy protein was significantly higher in the short-term vitamin E-deficiency than the long-term deficiency. These results indicate that the mechanisms of axonal injury in long-term vitamin E-deficient mice are related to dysfunction in microtubules assembly via alterations in microtubule-related proteins and autophagy.
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Affiliation(s)
- K Fukui
- Physiological Chemistry Laboratory, Department of Bioscience and Engineering, College of Systems Engineering and Sciences, Shibaura Institute of Technology , Saitama , Japan
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Tsuji T, Ishiguro Y, Nakui Y, Murata Y, Munakata A, Onozuka N, Fukui K, Suzuki S, Yamagishi S. A case of dissecting aortic aneurysm with cystic medial necrosis in systemic lupus erythematosus. Mod Rheumatol 2014; 11:238-41. [DOI: 10.3109/s101650170011] [Citation(s) in RCA: 3] [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: 11/13/2022]
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Niino T, Yamamoto SI, Fukui K, Castillo Martinez CR, Arizaga MV, Matsumoto T, Engelmann F. Dehydration improves cryopreservation of mat rush (Juncus decipiens Nakai) basal stem buds on cryo-plates. Cryo Letters 2013; 34:549-560. [PMID: 24441366] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Two cryopreservation procedures using aluminium cryo-plates, termed V-Cryo-plate and D-Cryo-plate, were successfully developed for in vitro mat rush (Juncus decipiens Nakai) basal stem buds. Multiple stems induced in liquid MS medium containing 8.9 μM BA by roller culture were cut into small clumps, plated on solid MS medium and cultured for 1 week at 25 degree C. Clumps that had produced many buds were cold-hardened at 5 degree C for 1-2 months. The buds with basal stems were dissected from small clumps and precultured overnight at 25 degree C on solid MS medium containing 0.3 M sucrose. Precultured buds were placed on aluminium cryo-plates and embedded in calcium alginate gel. Osmoprotection was performed by immersing the cryo-plates for 30 min at 25 degree C in loading solution (2 M glycerol + 1.0 M sucrose). In the D-Cryo-plate procedure, the buds were dehydrated to 27-25% moisture content (fresh weight) by placing the cryo-plates in the air current of a laminar flow cabinet for 2 to 3 h. In the V-Cryo-plate procedure, buds were dehydrated by immersing the cryo-plates in PVS2 vitrification solution for 40 min at 25 degree C. In both procedures, cooling was performed by placing the cryo-plates in uncapped cryotubes, which were immersed in liquid nitrogen. For rewarming, cryo-plates were immersed in medium with 1.0 M sucrose for 20 min at room temperature. Regrowth of cryopreserved buds of line 'Kitakei 2' using D-Cryo-plate and V-Cryo-plate procedures, was 90% and 80%, respectively. The two procedures were applied to 20 additional mat rush lines. Using the V-Cryo-plate procedure resulted in regrowth ranging between 13.3 and 86.7%, with an average of 52.5%. The D-Cryo-plate led to regrowth ranging between 73.3 and 96.7%, with an average of 86.3%. The D-Cryo-plate procedure will facilitate cryostorage of mat rush germplasm.
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Affiliation(s)
- T Niino
- National Institute of Agrobiological Sciences (NIAS), and Gene Research Center, University of Tsukuba, Tsukuba, Japan.
| | - S I Yamamoto
- National Institute of Agrobiological Sciences (NIAS), Tsukuba, Japan
| | - K Fukui
- National Institute of Agrobiological Sciences (NIAS), Tsukuba, Japan
| | - C R Castillo Martinez
- Centro Nacional de Recursos Geneticos, INIFAP, Tepatitlan de Morelos, Jalisco, Mexico
| | - M V Arizaga
- Centro Nacional de Recursos Geneticos, INIFAP, Tepatitlan de Morelos, Jalisco, Mexico
| | - T Matsumoto
- Faculty of Life and Environmental Science, Shimane University, Matsue, Japan
| | - F Engelmann
- Institut de recherche pour le developpement (IRD), UMR DIADE, Montpellier cedex, France
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Ibuki M, Fukui K, Yamauchi K. Effect of dietary mannanase-hydrolysed copra meal on growth performance and intestinal histology in broiler chickens. J Anim Physiol Anim Nutr (Berl) 2013; 98:636-42. [PMID: 23859084 DOI: 10.1111/jpn.12105] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2012] [Accepted: 06/13/2013] [Indexed: 11/30/2022]
Abstract
We investigated mannanase-hydrolysed copra meal (MCM), which contains β-1,4-mannobiose (MNB), for its capacity to improve growth performance and activate intestinal villus function. Seven-day-old chicks were separated into four flocks with an equal mean body weight and then fed a basal diet (control) or a diet supplemented with 0.02% or 0.1% MCM. After 7 weeks, the feed intake and body weight were determined and then used to calculate the feed efficiency (FE). Moreover, the intestinal segments were examined by light microscopy and scanning electron microscopy (SEM) for cellular and morphological changes in the villus. Although feed intake was not significantly different among the experimental groups, the body weight gain and FE were significantly higher in the 0.1% MCM group than in the control group (p < 0.05), while feed intake tended to be higher in the 0.02% and 0.1% MCM groups. The cellular area of the ileum was significantly higher in the 0.02% and 0.1% groups in relation to that in the control group (p < 0.05). Furthermore, the cellular area of the duodenum and the jejunum tended to be higher in the 0.02% and 0.1% MCM groups. For the correlation analysis, a significant correlation was observed between the dosage of MCM and the cell area of the duodenum, jejunum and ileum. Moreover, the number of mitotic cells was higher in the 0.1% MCM group. As shown by SEM, the cells at the villi tips were protuberant in appearance in the 0.02% and 0.1% MCM treatments when compared with the relatively flat cells of the control. On the duodenal villus surface of the 0.1% MCM group, some cells devoid of microvilli were observed, suggesting that the increased protuberance of these cells represents increased absorption activity. Although intestinal villus height and area did not significantly differ among groups, the levels of these parameters tended to increase in the experimental groups relative to the control. The present morphological findings reveal that MNB might be effective for activating intestinal absorptive function, and that the functional activation promotes the growth of the chickens.
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Affiliation(s)
- M Ibuki
- R&D Institute, Fuji Oil, Ltd., Izumisano-Shi, Osaka, Japan
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Equilibrina I, Matsunaga S, Morimoto A, Hashimoto T, Uchiyama S, Fukui K. ASURA (PHB2) interacts with Scc1 through chromatin. Cytogenet Genome Res 2013; 139:225-33. [PMID: 23548868 DOI: 10.1159/000350004] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/18/2012] [Indexed: 11/19/2022] Open
Abstract
Sister chromatid cohesion mediated by the cohesin complex is essential for faithful chromosome segregation. Previously we reported that PHB2 (prohibitin2/ASURA), a multifunctional protein, has a role in sister chromatid cohesion. Nevertheless, how ASURA is involved in sister chromatid cohesion still remains unclear. The present co-immunoprecipitation analysis reveals that ASURA interacts with cohesin subunit Scc1 in vivo. We show that ASURA associates with chromatin in a similar manner as Scc1 throughout the cell cycle. Furthermore, our observation using the Fucci (fluorescent ubiquitination-based cell cycle indicator) system indicates that ASURA is important for cohesin maintenance at early mitosis. We have also identified that the conserved PHB domain is responsible for chromatin targeting of ASURA. Our results suggest that the regulation of sister chromatid cohesion is mediated by ASURA binding to chromatin, where ASURA might be involved in cohesin protection through ASURA-Scc1 interactions.
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Affiliation(s)
- I Equilibrina
- Department of Biotechnology, Graduate School of Engineering, Osaka University, Suita, Japan
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El Sayed SM, El-Magd RMA, Shishido Y, Yorita K, Chung SP, Tran DH, Sakai T, Watanabe H, Kagami S, Fukui K. D-Amino acid oxidase-induced oxidative stress, 3-bromopyruvate and citrate inhibit angiogenesis, exhibiting potent anticancer effects. J Bioenerg Biomembr 2012; 44:513-23. [PMID: 22802136 DOI: 10.1007/s10863-012-9455-y] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2012] [Accepted: 05/29/2012] [Indexed: 11/30/2022]
Abstract
Angiogenesis is critical for cancer growth and metastasis. Steps of angiogenesis are energy consuming, while vascular endothelial cells are highly glycolytic. Glioblastoma multiforme (GBM) is a highly vascular tumor and this enhances its aggressiveness. D-amino acid oxidase (DAO) is a promising therapeutic protein that induces oxidative stress upon acting on its substrates. Oxidative stress-energy depletion (OSED) therapy was recently reported (El Sayed et al., Cancer Gene Ther, 19, 1-18, 2012). OSED combines DAO-induced oxidative stress with energy depletion caused by glycolytic inhibitors such as 3-bromopyruvate (3BP), a hexokinase II inhibitor that depleted ATP in cancer cells and induced production of hydrogen peroxide. 3BP disturbs the Warburg effect and antagonizes effects of lactate and pyruvate (El Sayed et al., J Bioenerg Biomembr, 44, 61-79, 2012). Citrate is a natural organic acid capable of inhibiting glycolysis by targeting phosphofructokinase. Here, we report that DAO, 3BP and citrate significantly inhibited angiogenesis, decreased the number of vascular branching points and shortened the length of vascular tubules. OSED delayed the growth of C6/DAO glioma cells. 3BP combined with citrate delayed the growth of C6 glioma cells and decreased significantly the number and size of C6 glioma colonies in soft agar. Human GBM cells (U373MG) were resistant to chemotherapy e.g. cisplatin and cytosine arabinoside, while 3BP was effective in decreasing the viability and disturbing the morphology of U373MG cells.
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Affiliation(s)
- S M El Sayed
- Division of Enzyme Pathophysiology, The Institute for Enzyme Research (KOSOKEN), The University of Tokushima, Kuramoto-cho, Tokushima, Japan
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Abstract
Malignant tumors are the second major cause of death in Germany. The essential therapy of operable cancer is surgical removal of primary tumors combined with adjuvant therapy. However, several consequences of surgery may promote metastasis, such as shedding of tumor cells into the circulation, decrease in tumor-induced antiangiogenesis factors, excessive release of growth factors for wound healing and suppression of immunity induced by surgical stress. In the last decade it has become clear that cell-mediated immunity controls the development of metastasis. Various perioperative factors, such as surgical stress, certain anesthetic and analgesic drugs and pain can suppress the patients' immune system perioperatively. On the other hand, by modifications of the anesthesia technique (e.g. regional anesthesia) and perioperative management to minimize immunosuppression, anesthesiologists can play a considerable role for a better outcome in patients having malignant tumors. Sufficient clinical evidence is not yet available to prove or disprove the hypothesis that anesthesia practice can improve cancer prognosis. Despite difficulties in study design, several prospective randomized trials are currently running and the results are awaited to elucidate this topic.
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Affiliation(s)
- K Fukui
- Klinik für Anästhesiologie, Universitätsmedizin Mainz, Deutschland
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Fukui K, Yasui T, Gomi H, Sugiya H, Fujimori O, Meyer W, Tsukise A. Histochemical localization of sialic acids and antimicrobial substances in eccrine glands of porcine snout skin. Eur J Histochem 2012; 56:e6. [PMID: 22472894 PMCID: PMC3352135 DOI: 10.4081/ejh.2012.e6] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2011] [Revised: 12/09/2011] [Accepted: 12/15/2011] [Indexed: 11/23/2022] Open
Abstract
The distribution of sialic acids and antimicrobial products (lysozyme, IgA, lactoferrin, β-defensin 2) as well as Rab3D in the eccrine glands of porcine snout skin was studied by sialoglycoconjugate histochemistry and immunohistochemistry. The secretory epithelium consisted of two types of secretory cells: dark and clear cells. The dark cells exhibited considerable amounts of sialoglycoconjugates, which included O-acetylated sialic acids, whereas sialic acids in the sequence Siaα-2-3Gal1-4GlcNAc were confined to some of the dark cells. All antimicrobial substances and Rab3D were demonstrated to be also mainly present in some of the dark cells. Additionally, in the cytological and cytochemical features, the different characteristics were observed among the dark cells. The results obtained are discussed with regard to the functional significance of the eccrine glands. The secretory products elaborated by this gland type may function as protective agents in order to preserve the skin integrity of the snout region, considering that sialic acids and antimicrobial substances are important in general defense mechanisms.
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Affiliation(s)
- K Fukui
- Department of Veterinary Anatomy, College of Bioresource Sciences, Nihon University, 1866 Kameino, Fujisawa, Kanagawa, Japan
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El Sayed SM, El-Magd RMA, Shishido Y, Chung SP, Diem TH, Sakai T, Watanabe H, Kagami S, Fukui K. 3-Bromopyruvate antagonizes effects of lactate and pyruvate, synergizes with citrate and exerts novel anti-glioma effects. J Bioenerg Biomembr 2012; 44:61-79. [DOI: 10.1007/s10863-012-9409-4] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2011] [Accepted: 01/11/2012] [Indexed: 01/08/2023]
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Yamamoto S, Rafique T, Fukui K, Sekizawa K, Niino T. V-cryo-plate procedure as an effective protocol for cryobanks: case study of mint cryopreservation. Cryo Letters 2012; 33:12-23. [PMID: 22434118] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
A vitrification procedure using aluminium cryo-plates (V-Cryo-plate procedure) was successfully developed and adjusted for in vitro-grown mint (Mentha spp.) shoot tips. Shoots were cultured at 25°C on MS medium containing 0.088 M sucrose for 7 to 14 days after the last subculture. Shoot tips with a basal part (1-1.5 mm × 1 mm) were dissected from the shoots and precultured at 25°C for 1 day on the same medium. Precultured shoot tips were placed on aluminium cryo-plates with 10 wells and embedded in alginate gel. Osmoprotection was performed by immersing the cryo-plates for 30 min at 25 degree C in 25 ml pipetting reservoirs filled with loading solution (2 M glycerol + 0.8 M sucrose). For dehydration, the cryo-plates were transferred and immersed in 25 ml pipetting reservoirs filled with PVS2 for 20 min at 25 degree C. Then the cryo-plates were transferred in uncapped 2 ml cryotubes and directly plunged into liquid nitrogen. For rewarming, shoot tips attached to the cryo-plates were immersed in cryotubes containing 2 ml 1 M sucrose solution at room temperature. Using this procedure, regrowth of cryopreserved shoot tips of line 'Fukuyamajisei' reached over 90 percent. This protocol was successfully applied to 16 additional Mentha lines, with regrowth ranging from 73 percent to 100 percent. This V-Cryo-plate method will facilitate the cryostorage of mint germplasm in our genebank.
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Affiliation(s)
- S Yamamoto
- Genebank, National Institute of Agrobiological Sciences (NIAS), Tsukuba, Japan
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Klein K, Fukui K, Schramm P, Stadie A, Fischer G, Werner C, Oertel J, Engelhard K. Human cerebral microcirculation and oxygen saturation during propofol-induced reduction of bispectral index †. Br J Anaesth 2011; 107:735-41. [DOI: 10.1093/bja/aer227] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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El Sayed SM, Abou El-Magd RM, Shishido Y, Chung SP, Sakai T, Watanabe H, Kagami S, Fukui K. D-amino acid oxidase gene therapy sensitizes glioma cells to the antiglycolytic effect of 3-bromopyruvate. Cancer Gene Ther 2011; 19:1-18. [PMID: 21921941 DOI: 10.1038/cgt.2011.59] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Glioma tumors are refractory to conventional treatment. Glioblastoma multiforme is the most aggressive type of primary brain tumors in humans. In this study, we introduce oxidative stress-energy depletion (OSED) therapy as a new suggested treatment for glioblastoma. OSED utilizes D-amino acid oxidase (DAO), which is a promising therapeutic protein that induces oxidative stress and apoptosis through generating hydrogen peroxide (H2O2). OSED combines DAO with 3-bromopyruvate (3BP), a hexokinase II (HK II) inhibitor that interferes with Warburg effect, a metabolic alteration of most tumor cells that is characterized by enhanced aerobic glycolysis. Our data revealed that 3BP induced depletion of energetic capabilities of glioma cells. 3BP induced H2O2 production as a novel mechanism of its action. C6 glioma transfected with DAO and treated with D-serine together with 3BP-sensitized glioma cells to 3BP and decreased markedly proliferation, clonogenic power and viability in a three-dimensional tumor model with lesser effect on normal astrocytes. DAO gene therapy using atelocollagen as an in vivo transfection agent proved effective in a glioma tumor model in Sprague-Dawley (SD) rats, especially after combination with 3BP. OSED treatment was safe and tolerable in SD rats. OSED therapy may be a promising therapeutic modality for glioma.
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Affiliation(s)
- S M El Sayed
- Division of Enzyme Pathophysiology, The Institute for Enzyme Research (KOSOKEN), The University of Tokushima, Kuramoto-cho, Tokushima, Japan
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Nakabeppu F, Ishimura T, Kumagai K, Fukui K. Development of the Very thin Microcrystalline N-Layer and its Application to the Stacked Solar Cell. ACTA ACUST UNITED AC 2011. [DOI: 10.1557/proc-164-389] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [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
AbstractIn order to improve the efficiency of the amorphous silicon stacked solar cells, we have developed the preparation method of highly conductive very thin microcrystalline silicon n-layers. We have found that the addition of a small amount of Ar gas to deposition gases is effective to make microcrystallite size small. The obtained thin films were characterized by conductivity measurement, R-HEED observation and TEM observation.This newly developed thin microcrystalline n-layers have been applied to the stacked solar cells. Increase of Jsc by 5-6% has been achieved because of the reduction of light absorption loss in n-layer without decrease of Voc and FF.
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Kawamura T, Fukuda I, Minakawa M, Fukui K. Open door approach by partial sternotomy and sterno-costo-chondroplasty for annuloaortic ectasia with pectus excavatum. Interact Cardiovasc Thorac Surg 2011; 12:645-7. [DOI: 10.1510/icvts.2010.258368] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
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Sakai Y, Narumoto J, Nishida S, Nakamae T, Yamada K, Nishimura T, Fukui K. Corticostriatal functional connectivity in non-medicated patients with obsessive-compulsive disorder. Eur Psychiatry 2010; 26:463-9. [PMID: 21067900 DOI: 10.1016/j.eurpsy.2010.09.005] [Citation(s) in RCA: 139] [Impact Index Per Article: 9.9] [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] [Received: 08/24/2010] [Accepted: 09/16/2010] [Indexed: 11/24/2022] Open
Abstract
The basal ganglia represents a key component of the pathophysiological model for obsessive-compulsive disorder (OCD). This brain region is part of several neural circuits, including the orbitofronto-striatal circuit and dorsolateral prefronto-striatal circuit. There are, however, no published studies investigating those circuits at a network level in non-medicated patients with OCD. Resting state functional magnetic resonance imaging scans were obtained from 20 non-medicated patients with OCD and 23 matched healthy volunteers. Voxelwise statistical parametric maps testing strength of functional connectivity of three striatal seed regions of interest (ROIs) with remaining brain regions were calculated and compared between groups. We performed additional correlation analyses between strength of connectivity and the severity scores for obsessive-compulsive symptoms, depression, and anxiety in the OCD group. Positive functional connectivity with the ventral striatum was significantly increased (P(corrected) < .05) in the orbitofrontal cortex, ventral medial prefrontal cortex and dorsal lateral prefrontal cortex of subjects with OCD. There was no significant correlation between measures of symptom severity and the strength of connectivity (P(uncorrected) < .001). This is the first study to investigate the corticostriatal connectivity in non-medicated patients with OCD. These findings provide the first direct evidence supporting a pathophysiological model involving basal ganglia circuitry in OCD.
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Affiliation(s)
- Y Sakai
- Department of Psychiatry, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, 465 Kajii-cho, Kawaramachi-Hirokoji, Kamigyo-ku, Kyoto 602-8566, Japan.
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Ibuki M, Kovacs-Nolan J, Fukui K, Kanatani H, Mine Y. Analysis of gut immune-modulating activity of β-1,4-mannobiose using microarray and real-time reverse transcription polymerase chain reaction. Poult Sci 2010; 89:1894-904. [DOI: 10.3382/ps.2010-00791] [Citation(s) in RCA: 18] [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: 12/27/2022] Open
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