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Umezu T, Tanaka S, Kubo S, Enomoto M, Tamori A, Ochiya T, Taguchi Y, Kuroda M, Murakami Y. Characterization of circulating miRNAs in the treatment of primary liver tumors. Cancer Rep (Hoboken) 2024; 7:e1964. [PMID: 38146079 PMCID: PMC10849994 DOI: 10.1002/cnr2.1964] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2023] [Revised: 11/13/2023] [Accepted: 12/06/2023] [Indexed: 12/27/2023] Open
Abstract
BACKGROUND AND AIM Circulating micro RNAs (miRNAs) indicate clinical pathologies such as inflammation and carcinogenesis. In this study, we aimed to investigate whether miRNA expression level patterns in could be used to diagnose hepatocellular carcinoma (HCC) and biliary tract cancer (BTC), and the relationship miRNA expression patterns and cancer etiology. METHODS Patients with HCC and BTC with indications for surgery were selected for the study. Total RNA was extracted from the extracellular vesicle (EV)-rich fraction of the serum and analyzed using Toray miRNA microarray. Samples were divided into two cohorts in order of collection, the first 85 HCC were analyzed using a microarray based on miRBase ver.2.0 (hereafter v20 cohort), and the second 177 HCC and 43 BTC were analyzed using a microarray based on miRBase ver.21 (hereafter v21 cohort). RESULTS Using miRNA expression patterns, we found that HCC and BTC could be identified with an area under curve (AUC) 0.754 (v21 cohort). Patients with anti-hepatitis C virus (HCV) treatment (SVR-HCC) and without antiviral treatment (HCV-HCC) could be distinguished by an AUC 0.811 (v20 cohort) and AUC 0.798 (v21 cohort), respectively. CONCLUSIONS In this study, we could diagnose primary hepatic malignant tumor using miRNA expression patterns. Moreover, the difference of miRNA expression in SVR-HCC and HCV-HCC can be important information for enclosing cases that are prone to carcinogenesis after being cured with antiviral agents, but also for uncovering the mechanism for some carcinogenic potential remains even after persistent virus infection has disappeared.
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Affiliation(s)
- Tomohiro Umezu
- Department of Molecular PathologyTokyo Medical UniversityTokyoJapan
| | - Shogo Tanaka
- Department of Hepato‐Biliary‐Pancreatic SurgeryOsaka Metropolitan University, Graduate School of MedicineOsakaJapan
| | - Shoji Kubo
- Department of Hepato‐Biliary‐Pancreatic SurgeryOsaka Metropolitan University, Graduate School of MedicineOsakaJapan
| | - Masaru Enomoto
- Department of Hepatology, Graduate School of MedicineOsaka Metropolitan University, Graduate School of MedicineOsakaJapan
| | - Akihiro Tamori
- Department of Hepatology, Graduate School of MedicineOsaka Metropolitan University, Graduate School of MedicineOsakaJapan
| | - Takahiro Ochiya
- Department of Molecular and Cellular Medicine, Institute of Medical ScienceTokyo Medical UniversityTokyoJapan
| | | | - Masahiko Kuroda
- Department of Molecular PathologyTokyo Medical UniversityTokyoJapan
| | - Yoshiki Murakami
- Department of Molecular PathologyTokyo Medical UniversityTokyoJapan
- Department of DentistryAsahi UniversityGifuJapan
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Kiuchi S, Hisatake S, Kabuki T, Dobashi S, Murakami Y, Ikeda T. Importance of anemia in heart failure over blood pressure variability. Clin Cardiol 2023; 46:1495-1503. [PMID: 37649390 PMCID: PMC10716338 DOI: 10.1002/clc.24141] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Revised: 08/08/2023] [Accepted: 08/21/2023] [Indexed: 09/01/2023] Open
Abstract
BACKGROUND The evaluation of arteriosclerosis (vascular function) is important when treating heart failure (HF). Vascular dysfunction is associated with anemia through renal function and endothelial nitric oxide synthase. Additionally, blood pressure (BP) variability (BPV) caused by vascular dysfunction is also associated with HF prognosis. However, how anemia and BPV may affect HF prognosis is unclear. METHODS Between January 2012 and July 2018, 214 patients with HF were hospitalized. The cardio-ankle vascular index (CAVI) as an index of arteriosclerosis of these patients was measured. The patients were divided into the elevated and preserved CAVI groups. We investigated the factors related to major adverse cardiovascular events (MACEs) as cardiovascular death or rehospitalization within 1 year after discharge. RESULTS In the elevated CAVI group, significant differences in body mass index (BMI), BPV, left ventricular dimension, and hemoglobin levels were observed between patients with and without MACEs. In the preserved CAVI group, significant differences in BMI, diastolic/mean BP, and hemoglobin levels were observed between those with and without MACEs. The multivariate analysis showed an independent association between hemoglobin levels and MACE occurrence in both the elevated and preserved CAVI groups (elevated CAVI group: hazard ratio [HR] = 0.800, p = .045 [model 1], HR = 0.802, p = .035 [model 2]; preserved CAVI group: HR = 0.783, p = .049 [model 1], HR = 0.752, p = .023 [model 2], and HR = 0.754, p = .024 [model 3]). CONCLUSIONS Anemia was independently associated with HF prognosis with or without arteriosclerosis.
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Affiliation(s)
- Shunsuke Kiuchi
- Department of Cardiovascular MedicineToho University Faculty of MedicineTokyoJapan
| | - Shinji Hisatake
- Department of Cardiovascular MedicineToho University Faculty of MedicineTokyoJapan
| | - Takayuki Kabuki
- Department of Cardiovascular MedicineToho University Faculty of MedicineTokyoJapan
| | - Shintaro Dobashi
- Department of Cardiovascular MedicineToho University Faculty of MedicineTokyoJapan
| | - Yoshiki Murakami
- Department of Cardiovascular MedicineToho University Faculty of MedicineTokyoJapan
| | - Takanori Ikeda
- Department of Cardiovascular MedicineToho University Faculty of MedicineTokyoJapan
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Yamashita A, Hisatake S, Sakurai K, Murakami Y, Kinoshita T, Nunoi Y, Okuma S, Takeshiro F, Fukasawa Y, Tochigi N, Ikeda T. Nonbacterial Thrombotic Endocarditis Presenting as a Mass in the Right Atrium Diagnosed by Open Chest Surgery: A Case Report. Intern Med 2023:2622-23. [PMID: 37981305 DOI: 10.2169/internalmedicine.2622-23] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/21/2023] Open
Abstract
Nonbacterial thrombotic endocarditis (NBTE) is a condition that results in the development of vegetation on cardiac valves that are devoid of inflammation and bacteria. We herein report a 60-year-old man who transferred to our hospital because of a systemic embolism and heart failure. A mass in the right atrium and vegetation on the mitral valve were observed. He was first diagnosed with infectious endocarditis according to the Duke criteria. During treatment, however, the patient was diagnosed with antiphospholipid syndrome and cancer. After four weeks of antibacterial therapy, the patient underwent open chest surgery, and the postoperative histological diagnosis was NBTE.
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Affiliation(s)
- Asami Yamashita
- Division of Cardiovascular Medicine, Department of Internal Medicine, Toho University Faculty of Medicine, Japan
| | - Shinji Hisatake
- Division of Cardiovascular Medicine, Department of Internal Medicine, Toho University Faculty of Medicine, Japan
| | - Kojiro Sakurai
- Division of Cardiovascular Medicine, Department of Internal Medicine, Toho University Faculty of Medicine, Japan
| | - Yoshiki Murakami
- Division of Cardiovascular Medicine, Department of Internal Medicine, Toho University Faculty of Medicine, Japan
| | - Toshio Kinoshita
- Division of Cardiovascular Medicine, Department of Internal Medicine, Toho University Faculty of Medicine, Japan
| | - Yoshio Nunoi
- Division of Cardiovascular Surgery, Department of Surgery, Toho University Faculty of Medicine, Japan
| | - Shinnosuke Okuma
- Division of Cardiovascular Surgery, Department of Surgery, Toho University Faculty of Medicine, Japan
| | - Fujii Takeshiro
- Division of Cardiovascular Surgery, Department of Surgery, Toho University Faculty of Medicine, Japan
| | - Yuri Fukasawa
- Department of Pathology, Toho University Faculty of Medicine, Japan
| | - Naobumi Tochigi
- Department of Surgical Pathology, Toho University Faculty of Medicine, Japan
| | - Takanori Ikeda
- Division of Cardiovascular Medicine, Department of Internal Medicine, Toho University Faculty of Medicine, Japan
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Kawahara D, Nishioka R, Murakami Y, Emoto Y, Iwashita K, Kubota H, Sasaki R, Nagata Y. A Nomogram Based on Pretreatment Radiomics and Dosiomics Features for Predicting Overall Survival for Esophageal Squamous Cell Cancer: Multi-Institutional Study. Int J Radiat Oncol Biol Phys 2023; 117:e470-e471. [PMID: 37785496 DOI: 10.1016/j.ijrobp.2023.06.1678] [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: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) The current study aims to propose a nomogram-based 2- and 3-years survival prediction model for esophageal squamous cell carcinoma treated by definitive radiotherapy using pretreatment computed tomography (CT), positron emission tomography (FDG PET) radiomic features and dosiomics features in addition to the common clinical factors using multi-institution data. MATERIALS/METHODS Data of 112 patients from one institution and 28 patients from the other institution were retrospectively collected. Radiomics and dosiomics features were extracted using five segmentations on CT and PET images and dose distribution. The least absolute shrinkage and selection operator (LASSO) with logistic regression was used to select radiomics and dosiomics features by calculating the radiomics and dosiomics scores (Rad-score and Dos-score), respectively, in the training model. The predictive clinical factors, Rad-score, and Dos-score were identified to develop a nomogram model. RESULTS We extracted 15219 features from the radiomics and dosiomics analysis. By LASSO Cox regression analysis, 13 CT-based radiomics features, 11 PET-based radiomics features, and 19 dosiomics features were selected. Clinical factors of T-stage, N-stage, and clinical stage were selected as significant prognostic factors by univariate Cox regression analysis. A predictive nomogram for prognosis in was established using these factors. In the external validation cohort, the C-index of the combined model of CT-based radiomics, PET-based radiomics, and dosiomics features with clinical factors were 0.74, 0.82, and 0.92, respectively. Moreover, we divided the cohort into high-risk and low-risk groups using the median nomogram score. Significant differences in overall survival (OS) in the combine model of CT-based radiomics, PET-based radiomics, and dosiomics features with clinical factors were observed between the high-risk and low-risk groups (P = 0.019, P = 0.038, and 0.014, respectively). CONCLUSION The current study established and validated 2- and 3-year survival prediction models based on radiomics and dosiomics features with clinical factors. The prediction model with dosiomics analysis could better predict OS than CT- and PET-based radiomics analysis in esophageal cancer patients treated with radiotherapy.
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Affiliation(s)
- D Kawahara
- Department of Radiation Oncology, Hiroshima University Hospital, Hiroshima, Japan
| | - R Nishioka
- Department of Radiation Oncology, Graduate School of Biomedical Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Y Murakami
- Department of Radiation Oncology, Graduate School of Biomedical Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Y Emoto
- Department of Radiation Oncology, Hyogo Cancer Center, Kobe, Japan
| | - K Iwashita
- Kobe Minimally invasive Cancer Center, Kobe, Japan
| | - H Kubota
- Division of Radiation Oncology, Kobe University Graduate School of Medicine, Kobe, Japan
| | - R Sasaki
- Division of Radiation Oncology, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Y Nagata
- Department of Radiation Oncology, Graduate School of Biomedical Health Sciences, Hiroshima University, Hiroshima, Japan
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Murakami Y, Tsukano K, Hirata H, Suzuki K. Evaluation of blood serum iron concentration as an alternative biomarker for inflammation in dairy cows. Biol Trace Elem Res 2023; 201:4710-4717. [PMID: 36622523 DOI: 10.1007/s12011-022-03544-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/25/2022] [Accepted: 12/22/2022] [Indexed: 01/10/2023]
Abstract
This study aimed to clarify the relationship between acute phase protein (APP) concentrations and serum Fe concentrations to determine whether serum iron (Fe) can be clinically applied as a substitute for APPs in cows. One hundred five Holstein-Friesian breed lactating dairy cows were enrolled in this study. Cows with inflammatory diseases were 16 subclinical, and 15 severe mastitis cows, in addition to 15 mild and 16 severe sole ulcer cows. The plasma haptoglobin (HPT), alpha-1 acid glycoprotein (AGP), SAA, serum Fe levels, and other biochemical parameters in the cows were measured. The two-sample t-tests and multiple logistic regression analysis were used to compare the control and inflammatory disease groups. ROC analysis was used to evaluate the ability to diagnose inflammation disease. From the results, the proposed diagnostic cutoff value for plasma SAA and serum Fe concentrations to identify dairy cows with inflammatory diseases based on analyses of ROC curves were set at > 3.65 mg/l and < 120.50 µg/dl, respectively. Therefore, instead of using expensive inflammatory markers to evaluate the inflammatory state at the first treatment day for inflammatory diseases in cow, it shows the useful for screening with serum Fe concentration that can be measured easily and inexpensively as alternative inflammatory biomarkers.
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Affiliation(s)
- Yoshiki Murakami
- School of Veterinary Medicine, Rakuno Gakuen University, 582 Bunkyodai-Midorimachi, Ebetsu, Hokkaido, 069-8501, Japan
| | - Kenji Tsukano
- Hokkaido Agricultual Mutual Releef Association, 74-2 Higashimae, Hokuto, Hokkaido, 041-1214, Japan
| | - Haruyuki Hirata
- School of Veterinary Medicine, Rakuno Gakuen University, 582 Bunkyodai-Midorimachi, Ebetsu, Hokkaido, 069-8501, Japan
| | - Kazuyuki Suzuki
- School of Veterinary Medicine, Rakuno Gakuen University, 582 Bunkyodai-Midorimachi, Ebetsu, Hokkaido, 069-8501, Japan.
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Murakami Y, Miyoshi S, Katsuta T, Hirokawa J, Imano N, Nishibuchi I, Nagata Y. Laryngo-Esophageal Dysfunction Free Survival of Chemoradiation for Cervical Esophageal Cancer. Int J Radiat Oncol Biol Phys 2023; 117:e327. [PMID: 37785159 DOI: 10.1016/j.ijrobp.2023.06.2374] [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: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) Chemoradiotherapy is often the treatment of choice for cervical esophageal cancer due to the invasiveness of surgery. However, toxicity after chemoradiotherapy often affects the quality of life related to swallowing and speech. This study evaluated laryngoesophageal dysfunction-free survival (LEDFS) in patients with cervical esophageal cancer, which has recently been used in head and neck cancer. MATERIALS/METHODS We analyzed 59 patients with cervical esophageal cancer without distant metastases other than supraclavicular lymph node metastases who received radical chemoradiotherapy with 5-fluorouracilplus platinum between 2002 and 2018. Loco-regional control (LRC), overall survival (OS), LEDFS, metachronous esophageal cancer incidence rates, and late toxicities were evaluated. LEDFS events were defined as death, local recurrence, total or partial laryngectomy, tracheostomy for more than 2 years, and feeding tube use for more than 2 years, as recommended by the Larynx Preservation Consensus Panel. The Kaplan-Meier method was used to calculate survival rates. The generalized Wilcoxon test was used to compare the two groups. The Common Terminology Criteria for Adverse Events v5.0 was used to assess toxicities. RESULTS The median age was 66 years (range, 38-83). There were 13 women and 46 men. Stage I, II, III, IVA, and IVB disease according to UICC 8th staging were 15, 9, 9, 10, and 16 patients, respectively. 22 received conventional radiotherapy and 37 received volumetric modulated arc therapy. The median total irradiation dose was 66 Gy. Platinum plus 5-fluorouracil chemotherapy was administered to all patients. The median follow-up for survivors was 87.5 months. The 5-year LRC, OS, and LEDFS rates were 54.2%, 48.9%, and 41.9%, respectively. The prognostic factors for OS were performance status (PS), hypopharyngeal extension, and clinical stage in univariate analysis and only clinical stage (hazard ratio [HR] 3.87, 95% Confidence interval [CI]: 1.52-9.87, p<0.01) in multivariate analysis; the prognostic factors for LEDFS were PS, hypopharyngeal extension and clinical stage in univariate analysis and hypopharyngeal extension (HR 2.38, 95% CI: 1.12-5.03, p = 0.02) and clinical stage (HR 4.07, 95% CI: 1.48-11.06, p<0.02) in multivariate analysis. Metachronous esophageal cancer was observed in 28.6% of patients at 5 years. As severe late toxicities, grade 3 pneumonitis, esophageal stricture, esophageal fistula, laryngeal stricture, and laryngeal edema were observed in 1 (2%), 1 (2%) and 4 (7%), 1 (2%) and 1 (2%), respectively. Grade 2 hypothyroidism was observed in 31 (53%) patients. CONCLUSION Chemoradiation for cervical esophageal cancer showed good results. The prognostic factors for LEDFS were pharyngeal extension and clinical stage. Late esophageal and laryngeal toxicity, hypothyroidism, and metachronous esophageal cancer should be noted.
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Affiliation(s)
- Y Murakami
- Department of Radiation Oncology, Hiroshima University, Hiroshima, Japan
| | - S Miyoshi
- Department of Radiation Oncology, Hiroshima University, Hiroshima, Japan
| | - T Katsuta
- Department of Radiation Oncology, Hiroshima University Hospital, Hiroshima, Japan
| | - J Hirokawa
- Department of Radiation Oncology, Hiroshima University Hospital, Hiroshima, Japan
| | - N Imano
- Department of Radiation Oncology, Graduate School of Biomedical Health Sciences, Hiroshima University, Hiroshima, Japan
| | - I Nishibuchi
- Department of Radiation Oncology, Hiroshima University Hospital, Hiroshima, Japan
| | - Y Nagata
- Department of Radiation Oncology, Institute of Biomedical & Health Science, Hiroshima University, Hiroshima, Japan
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Nishibuchi I, Murakami Y, Miyoshi S, Katsuta T, Imano N, Hirokawa J, Nagata Y. Impact of the G8 Score on Treatment Strategies and Outcome in Definitive Radiotherapy for the Elderly Esophageal Cancer Patients. Int J Radiat Oncol Biol Phys 2023; 117:e329. [PMID: 37785163 DOI: 10.1016/j.ijrobp.2023.06.2378] [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: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) Although chemoradiotherapy (CRT) is widely used as a curative treatment for esophageal cancer, it is often difficult to perform standard CRT for the elderly in the real world. This study aimed to investigate the impact of the Geriatric 8 (G8) score on treatment strategies and outcome in definitive radiotherapy (RT) for elderly esophageal cancer patients. MATERIALS/METHODS We analyzed 81 esophageal cancer patients aged ≥65 years who received definitive RT between 2018 and 2021. The G8 score was acquired at the first visit to the radiation oncology department. The treatment strategy was decided by a multi-disciplinary conference, and the G8 score was not used to determine the treatment strategy. Standard treatment (standard CRT) was defined as RT with elective nodal irradiation and a total dose ≥50 Gy, and chemotherapy with two cycles of platinum (70 mg/m2) and 5FU (700 mg/m2 for 4 days) concurrently. The Kaplan-Meier method was used to generate actual survival curves. The Common Terminology Criteria for Adverse Events (CTCAE) version 5.0 was used to assess toxicities. The Mann-Whitney U test was used to compare the two groups, and statistical significance was set at p<0.05. The Receiver Operating Characteristic (ROC) curve was used to calculate the cutoff value. RESULTS The Median follow-up time was 30 months (range: 8-51) for survivors. The mean G8 scores by treatment strategy were 13.9 (range: 9-17) for standard CRT group (n = 26), 12.1 (range: 7-16) for reduced CRT group (n = 30), and 9.7 (range: 4.5-14) for RT alone group (n = 25). G8 score was significantly higher for standard CRT (p = 0.017) and significantly lower for RT alone (p<0.01). The cut-off value of the G8 score for standard treatment, calculated by the ROC curve, was 12.5 points. In the non-standard treatment group, the cut-off value of the G8 score for RT alone, calculated by the ROC curve, was 10.5 points. The 2-year overall survival (OS) rates for standard CRT, reduced CRT and RT alone were 74%, 71% and 35%, respectively, and significantly lower in RT alone (p<0.001). The 2-years OS rates for G8 score >10.5 points and ≤10.5 points were 69% and 48%, respectively (p = 0.039). Grade 3 or higher acute toxicities were observed in 33 patients (41%); 14 (54%) in standard CRT, 17 (57%) in reduced CRT and 2 (8%) in RT alone. Grade 5 acute toxicity was not observed. G8 scores tended to be higher in the patients with grade 3 or higher acute toxicities, but the difference was not statistically significant (p = 0.057). Grade 3 or higher late toxicities were observed in 7 patients. CONCLUSION Our results suggest that there is an association between the G8 score and clinicians' treatment decisions. Although RT alone could be safely performed even in patients with low G8 scores, administration of chemotherapy strongly affected prognosis. These results suggest the importance of developing less toxic systemic therapy regimens for patients with low G8 scores.
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Affiliation(s)
- I Nishibuchi
- Department of Radiation Oncology, Hiroshima University, Hiroshima, Japan
| | - Y Murakami
- Department of Radiation Oncology, Hiroshima University, Hiroshima, Japan
| | - S Miyoshi
- Department of Radiation Oncology, Hiroshima University, Hiroshima, Japan
| | - T Katsuta
- Department of Radiation Oncology, Hiroshima University, Hiroshima, Japan
| | - N Imano
- Department of Radiation Oncology, Hiroshima University, Hiroshima, Japan
| | - J Hirokawa
- Department of Radiation Oncology, Hiroshima University, Hiroshima, Japan
| | - Y Nagata
- Department of Radiation Oncology, Hiroshima University, Hiroshima, Japan
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Imano N, Kawahara D, Nishioka R, Koike K, Katsuta T, Hirokawa J, Saito A, Nishibuchi I, Murakami Y, Nagata Y. Predictive Modeling of Radiation Pneumonitis Induced by Chemoradiotherapy for Locally Advanced Non-Small Cell Lung Cancer Using Radiomics and Clinical Features. Int J Radiat Oncol Biol Phys 2023; 117:e26. [PMID: 37784995 DOI: 10.1016/j.ijrobp.2023.06.704] [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: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) The purpose of this study is to establish a prediction model for the development of grade 2 or higher radiation pneumonitis (RP) using radiomics analysis of pretreatment CT images, PET images, and dose distribution, in addition to clinical factors, in patients with locally advanced non-small cell lung cancer (NSCLC) treated with radical chemoradiotherapy. MATERIALS/METHODS We retrospectively evaluated 128 cases of locally advanced NSCLC treated with radical radiotherapy at our institution from 2008 to 2021. Clinical factors included age, sex, performance status (PS), KL-6, smoking history, histological type, clinical stage, and total radiation dose. Radiomics analysis was performed by analyzing treatment planning CT images, PET images, and dose distribution, and Rad-score (Radiomics-score) was calculated for the extracted features using Lasso-Cox regression. Rad-score (Radiomics-score) was calculated by Lasso-Cox regression for the extracted features. Risk factors were selected by univariate/multivariate analysis of clinical factors and Rad-score. Three models for predicting RP were developed from the identified risk factors using Nomogram: Clinical, Rad-score, and Combined model. The model was evaluated using area under the curve (AUC) based on receiver operating characteristic (ROC) curves and concordance index (C-index). RP was evaluated using the Common Terminology Criteria for Adverse Events (CTCAE) version 5.0. The cumulative incidence of Grade 2 or higher RP was evaluated using the Kaplan-Meier method. RESULTS Of the 128 cases, grade 2 or higher RP was observed in 50 cases (39%). Regarding clinical factors, gender, smoking status, and histology were selected as significant predictors of RP. Lasso-Cox analysis of radiomics features selected 11 features from CT images, 7 features from PET images, and 16 features from dose distribution as predictors of RP, yielding a total of 34 factors. The combined model (C-index: 0.96, AUC: 0.92) showed the best discrimination performance compared to the clinical model (C-index: 0.73, AUC: 0.56) and the Rad-score model (C-index: 0.87, AUC: 0.92). Risk classification using the combined model showed that the 1-year cumulative incidence of grade 2 or higher RP was 65% in the high-risk group, significantly higher than 15% in the low-risk group (p<0.001). CONCLUSION The combined model with Rad-score and clinical factors can predict grade 2 or higher RP in NSCLC patients with high accuracy.
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Affiliation(s)
- N Imano
- Department of Radiation Oncology, Graduate School of Biomedical Health Sciences, Hiroshima University, Hiroshima, Japan
| | - D Kawahara
- Department of Radiation Oncology, Hiroshima University Hospital, Hiroshima, Japan
| | - R Nishioka
- Department of Radiation Oncology, Graduate School of Biomedical Health Sciences, Hiroshima University, Hiroshima, Japan
| | - K Koike
- Department of Radiation Oncology, Graduate School of Biomedical Health Sciences, Hiroshima University, Hiroshima, Japan
| | - T Katsuta
- Department of Radiation Oncology, Hiroshima University Hospital, Hiroshima, Japan
| | - J Hirokawa
- Department of Radiation Oncology, Hiroshima University Hospital, Hiroshima, Japan
| | - A Saito
- Department of Radiation Oncology, Hiroshima University Hospital, Hiroshima, Japan
| | - I Nishibuchi
- Department of Radiation Oncology, Hiroshima University Hospital, Hiroshima, Japan
| | - Y Murakami
- Department of Radiation Oncology, Graduate School of Biomedical Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Y Nagata
- Department of Radiation Oncology, Graduate School of Biomedical Health Sciences, Hiroshima University, Hiroshima, Japan
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Murakami Y, Nishijima H, Nakamura T, Furukawa T, Kinoshita I, Kon T, Suzuki C, Tomiyama M. Altered Amantadine Effects after Repetitive Treatment for l-dopa-induced Involuntary Movements in a Rat Model of Parkinson's Disease. Neurosci Lett 2023; 806:137248. [PMID: 37061023 DOI: 10.1016/j.neulet.2023.137248] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2023] [Revised: 03/29/2023] [Accepted: 04/11/2023] [Indexed: 04/17/2023]
Abstract
BACKGROUND l-3,4-dihydroxyphenylalanine (l-dopa) is the most effective drug for Parkinson's disease (PD); however, most PD patients develop motor fluctuations including wearing-off and l-dopa-induced dyskinesia (LID). Amantadine is beneficial for improving the motor symptoms, reducing "off" time, and ameliorating LID, although its long-term efficacy remains unknown. OBJECTIVES To investigate the effects of amantadine on PD and LID using a rat model with repetitive drug treatment. METHOD We utilized 6-hydroxydopamine injections to develop a hemiparkinsonian rat model. The rats were assigned to four groups: five rats received l-dopa and benserazide for 31 days, six rats received l-dopa and benserazide plus amantadine for 31 days, five rats received l-dopa and benserazide for 15 days followed by l-dopa and benserazide plus amantadine for 16 days, and five rats received l-dopa and benserazide plus amantadine for 15 days followed by l-dopa and benserazide treatment for 16 days. We evaluated the l-dopa-induced abnormal involuntary movements on treatment days 1, 7, 14, 16, 22, and 29. Subsequently, immunohistochemistry for drebrin was performed. RESULTS l-dopa-induced abnormal movements were reduced on the first day of amantadine treatment, and these effects disappeared with repetitive treatment. In contrast, the extension of l-dopa "on" time was observed after repetitive amantadine treatment. All groups showed enlarged drebrin immunoreactive dots in the dopamine-denervated striatum, indicating that amantadine did not prevent priming effects of repetitive l-dopa treatment. CONCLUSION Anti-LID effect of amantadine diminished after repetitive treatment, and the effect of amantadine on wearing-off emerged after repetitive treatment in a hemiparkinsonian rat model. Fluctuations in amantadine effects should be considered when using it in clinical settings.
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Affiliation(s)
- Yoshiki Murakami
- Department of Neurology, Institute of Brain Science, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Haruo Nishijima
- Department of Neurology, Institute of Brain Science, Hirosaki University Graduate School of Medicine, Hirosaki, Japan.
| | - Takashi Nakamura
- Department of Neurology, Institute of Brain Science, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Tomonori Furukawa
- Department of Neurophysiology, Institute of Brain Science, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Iku Kinoshita
- Department of Neurology, Institute of Brain Science, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Tomoya Kon
- Department of Neurology, Institute of Brain Science, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Chieko Suzuki
- Department of Neurology, Institute of Brain Science, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Masahiko Tomiyama
- Department of Neurology, Institute of Brain Science, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
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Nishi Y, Murakami Y, Teshima S, Tsukano K, Otsuka M, Hirata H, Tsuchiya M, Suzuki K. Endotoxin activity and leukocytic STAT3 mRNA alterations differ according to age in lipopolysaccharide-challenged calves. Res Vet Sci 2022; 152:300-306. [DOI: 10.1016/j.rvsc.2022.08.028] [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: 12/22/2021] [Revised: 08/26/2022] [Accepted: 08/27/2022] [Indexed: 11/27/2022]
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11
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Taki T, Mori S, Murakami Y, Urata T, Okumura M, Akanabe H, Ebata A, Imai S, Yokota K, Akiyama M. 494 Low plasma fibrinogen levels are associated with poor prognosis in cutaneous angiosarcoma of the head and neck. J Invest Dermatol 2022. [DOI: 10.1016/j.jid.2022.09.508] [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: 11/19/2022]
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12
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Nishibuchi I, Murakami Y, Miyoshi S, Kubo K, Katsuta T, Imano N, Nagata Y. Usefulness of the G8 Screening Tool in Determining Treatment Strategies for Definitive Radiotherapy of Esophageal Cancer in the Elderly. Int J Radiat Oncol Biol Phys 2022. [DOI: 10.1016/j.ijrobp.2022.07.1040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Inada M, Nishimura Y, Ishikura S, Ishikawa K, Murakami N, Kodaira T, Ito Y, Tsuchiya K, Murakami Y, Saitoh J, Akimoto T, Nakata K, Yoshimura M, Teshima T, Toshiyasu T, Ota Y, Minemura T, Shimizu H, Hiraoka M. The Organs-at-Risk Dose Constraints in Head and Neck Intensity Modulated Radiation Therapy Using Data from a Multi-Institutional Clinical Trial (JCOG1015A1). Int J Radiat Oncol Biol Phys 2022. [DOI: 10.1016/j.ijrobp.2022.07.1346] [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: 10/31/2022]
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Imano N, Saito T, Nakamura N, Ito K, Yorozu A, Nishibuchi I, Murakami Y, Nagata Y. Pain Response Rates after Conventional Radiation Therapy for Bone Metastases Assessed Using International Consensus Pain Response Endpoints: A Systematic Review and Meta-Analysis of Initial Radiation Therapy and Re-Irradiation. Int J Radiat Oncol Biol Phys 2022. [DOI: 10.1016/j.ijrobp.2022.07.1671] [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: 10/31/2022]
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15
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Nakano M, Ishiyama H, Kawakami S, Sekiguchi A, Kainuma T, Tsumura H, Hashimoto M, Hasegawa T, Tanaka Y, Katakura T, Murakami Y. PO-1788 Radiomic and dosiomic prediction of biochemical failure after Iodine-125 prostate brachytherapy. Radiother Oncol 2022. [DOI: 10.1016/s0167-8140(22)03752-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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16
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Kiuchi S, Hisatake S, Kabuki T, Oka T, Dobashi S, Murakami Y, Sano T, Ikeda T. Early initiation of tolvaptan is associated with early discharge in patients with heart failure regardless of age. BMC Cardiovasc Disord 2022; 22:202. [PMID: 35488212 PMCID: PMC9052442 DOI: 10.1186/s12872-022-02640-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2021] [Accepted: 04/19/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Elderly patients with heart failure (HF) have been observed to decrease activities of daily living (ADL) during hospitalization. Prevention of ADL decline from shortening of hospital stays is especially important in the elderly, because decreasing ADL is associated with poor prognosis. We investigated the relationship between the early initiation of tolvaptan (TLV) after hospitalization and the length of hospital stay in patients with HF aged younger than 80 years and aged 80 years and older. METHODS We analyzed 146 patients younger than 80 years (< 80) and 101 patients aged 80 years and older (≥ 80) who were hospitalized with HF from February 2011 to June 2016 and had initiated TLV. The relationship between the time until commencement of TLV and the length of hospital stay was assessed. Additionally, a comparison made between the TLV early start group (within the median) and the delayed start group (over the median) for both groups. Multivariate analysis was also performed on factors that required hospital stays below the median. RESULTS A significant correlation was observed between time to TLV initiation and the length of hospital stay (< 80: r = 0.382, P < 0.001; ≥ 80: r = 0.395, P < 0.001). The length of hospital stay in the early group was significantly longer than that in the delayed group for both groups (< 80: early 21.0 ± 13.0 days and 33.0 ± 22.7 days, respectively, P < 0.001; ≥ 80: early 21.3 ± 12.5 days and 32.9 ± 17.9 days, respectively, P < 0.001). Conversely, no statistically significant difference found in the length of hospital stay after initiation of TLV. Moreover, no increase in adverse events in the elderly observed. A multivariate analysis revealed that a predictive factor for short-term hospitalization was early administration of TLV regardless of age. CONCLUSIONS The early initiation of TLV after hospitalization was associated with a shorter length of hospital stay in patients with HF regardless of age.
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Affiliation(s)
- Shunsuke Kiuchi
- Department of Cardiovascular Medicine, Toho University Graduate School of Medicine, 6-11-1 Omori-nishi, Ota-ku, Tokyo, 143-8541, Japan.
| | - Shinji Hisatake
- Department of Cardiovascular Medicine, Toho University Graduate School of Medicine, 6-11-1 Omori-nishi, Ota-ku, Tokyo, 143-8541, Japan
| | - Takayuki Kabuki
- Department of Cardiovascular Medicine, Toho University Graduate School of Medicine, 6-11-1 Omori-nishi, Ota-ku, Tokyo, 143-8541, Japan
| | - Takashi Oka
- Department of Cardiovascular Medicine, Toho University Graduate School of Medicine, 6-11-1 Omori-nishi, Ota-ku, Tokyo, 143-8541, Japan
| | - Shintaro Dobashi
- Department of Cardiovascular Medicine, Toho University Graduate School of Medicine, 6-11-1 Omori-nishi, Ota-ku, Tokyo, 143-8541, Japan
| | - Yoshiki Murakami
- Department of Cardiovascular Medicine, Toho University Graduate School of Medicine, 6-11-1 Omori-nishi, Ota-ku, Tokyo, 143-8541, Japan
| | - Takahide Sano
- Department of Cardiovascular Medicine, Toho University Graduate School of Medicine, 6-11-1 Omori-nishi, Ota-ku, Tokyo, 143-8541, Japan
| | - Takanori Ikeda
- Department of Cardiovascular Medicine, Toho University Graduate School of Medicine, 6-11-1 Omori-nishi, Ota-ku, Tokyo, 143-8541, Japan
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Abstract
COVID-19 vaccine-related myocarditis has been reported worldwide. We herein report two Japanese cases with suspected vaccine-related myocarditis. A 27-year-old man was admitted with chest pain 4 days after the second vaccination. An electrocardiogram (ECG) did not reveal any significant abnormalities. The second patient, a 37-year-old man, was admitted with chest pain 9 days after the first vaccination. His ECG exhibited ST-elevation in multiple leads. In both cases, cardiac magnetic resonance imaging findings were consistent with myocarditis. They recovered with symptomatic relief within a few days. These cases suggest that the benefit of COVID-19 vaccination exceeds the risk of vaccine-related myocarditis.
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Affiliation(s)
- Yoshiki Murakami
- Department of Cardiovascular Medicine, Toho University Graduate School of Medicine, Japan
| | - Masaya Shinohara
- Division of Cardiovascular Medicine, Department of Internal Medicine, Toho University Faculty of Medicine, Japan
| | - Yosuke Oka
- Division of Cardiovascular Medicine, Department of Internal Medicine, Toho University Faculty of Medicine, Japan
| | - Ryo Wada
- Division of Cardiovascular Medicine, Department of Internal Medicine, Toho University Faculty of Medicine, Japan
| | - Ryota Noike
- Department of Cardiovascular Medicine, Toho University Graduate School of Medicine, Japan
| | - Hiroshi Ohara
- Division of Cardiovascular Medicine, Department of Internal Medicine, Toho University Faculty of Medicine, Japan
| | - Tadashi Fujino
- Department of Cardiovascular Medicine, Toho University Graduate School of Medicine, Japan
| | - Takanori Ikeda
- Department of Cardiovascular Medicine, Toho University Graduate School of Medicine, Japan
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18
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Sekine Y, Iwasaki Y, Aoi T, Mikiko E, Hirata M, Kamatani Y, Matsuda K, Kokichi S, Yoshida T, Murakami Y, Fukui T, Akamatsu S, Ogawa O, Nakagawa H, Numakura K, Narita S, Momozawa Y, Habuchi T. Large-scale genomic analysis of renal cell carcinoma using 1,532 Japanese patients and 5,996 controls. Eur Urol 2022. [DOI: 10.1016/s0302-2838(22)01200-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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19
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Yamazaki R, Matsukiyo S, Morita T, Tanaka SJ, Umeda T, Aihara K, Edamoto M, Egashira S, Hatsuyama R, Higuchi T, Hihara T, Horie Y, Hoshino M, Ishii A, Ishizaka N, Itadani Y, Izumi T, Kambayashi S, Kakuchi S, Katsuki N, Kawamura R, Kawamura Y, Kisaka S, Kojima T, Konuma A, Kumar R, Minami T, Miyata I, Moritaka T, Murakami Y, Nagashima K, Nakagawa Y, Nishimoto T, Nishioka Y, Ohira Y, Ohnishi N, Ota M, Ozaki N, Sano T, Sakai K, Sei S, Shiota J, Shoji Y, Sugiyama K, Suzuki D, Takagi M, Toda H, Tomita S, Tomiya S, Yoneda H, Takezaki T, Tomita K, Kuramitsu Y, Sakawa Y. High-power laser experiment forming a supercritical collisionless shock in a magnetized uniform plasma at rest. Phys Rev E 2022; 105:025203. [PMID: 35291161 DOI: 10.1103/physreve.105.025203] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2020] [Accepted: 01/19/2022] [Indexed: 06/14/2023]
Abstract
We present an experimental method to generate quasiperpendicular supercritical magnetized collisionless shocks. In our experiment, ambient nitrogen (N) plasma is at rest and well magnetized, and it has uniform mass density. The plasma is pushed by laser-driven ablation aluminum (Al) plasma. Streaked optical pyrometry and spatially resolved laser collective Thomson scattering clarify structures of plasma density and temperatures, which are compared with one-dimensional particle-in-cell simulations. It is indicated that just after the laser irradiation, the Al plasma is magnetized by a self-generated Biermann battery field, and the plasma slaps the incident N plasma. The compressed external field in the N plasma reflects N ions, leading to counterstreaming magnetized N flows. Namely, we identify the edge of the reflected N ions. Such interacting plasmas form a magnetized collisionless shock.
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Affiliation(s)
- R Yamazaki
- Department of Physical Sciences, Aoyama Gakuin University, 5-10-1 Fuchinobe, Sagamihara, Kanagawa 252-5258, Japan
- Institute of Laser Engineering, Osaka University, 2-6, Yamadaoka, Suita, Osaka 565-0871, Japan
| | - S Matsukiyo
- Faculty of Engineering Sciences, Kyushu University, 6-1 Kasuga-Koen, Kasuga, Fukuoka 816-8580, Japan
| | - T Morita
- Faculty of Engineering Sciences, Kyushu University, 6-1 Kasuga-Koen, Kasuga, Fukuoka 816-8580, Japan
| | - S J Tanaka
- Department of Physical Sciences, Aoyama Gakuin University, 5-10-1 Fuchinobe, Sagamihara, Kanagawa 252-5258, Japan
| | - T Umeda
- Institute for Space-Earth Environmental Research, Nagoya University, Furo-cho, Chikusa, Nagoya, Aichi 464-8602, Japan
| | - K Aihara
- Department of Physical Sciences, Aoyama Gakuin University, 5-10-1 Fuchinobe, Sagamihara, Kanagawa 252-5258, Japan
| | - M Edamoto
- Interdisciplinary Graduate School of Engineering Sciences, Kyushu University, Kasuga 816-8580, Japan
| | - S Egashira
- Graduate School of Science, Osaka University, 1-1 Machikane-yama, Toyonaka, Osaka 560-0043, Japan
| | - R Hatsuyama
- Interdisciplinary Graduate School of Engineering Sciences, Kyushu University, Kasuga 816-8580, Japan
| | - T Higuchi
- Interdisciplinary Graduate School of Engineering Sciences, Kyushu University, Kasuga 816-8580, Japan
| | - T Hihara
- Graduate School of Engineering, Osaka University, 2-1, Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Y Horie
- Interdisciplinary Graduate School of Engineering Sciences, Kyushu University, Kasuga 816-8580, Japan
| | - M Hoshino
- Department of Earth and Planetary Science, University of Tokyo, 7-3-1 Hongo, Bunkyo, Tokyo 113-0033, Japan
| | - A Ishii
- Max Planck Institute for Gravitational Physics (Albert Einstein Institute), Am Mühlenberg 1, Potsdam-Golm 14476, Germany
| | - N Ishizaka
- Department of Physical Sciences, Aoyama Gakuin University, 5-10-1 Fuchinobe, Sagamihara, Kanagawa 252-5258, Japan
| | - Y Itadani
- Interdisciplinary Graduate School of Engineering Sciences, Kyushu University, Kasuga 816-8580, Japan
| | - T Izumi
- Graduate School of Science, Osaka University, 1-1 Machikane-yama, Toyonaka, Osaka 560-0043, Japan
| | - S Kambayashi
- Department of Physical Sciences, Aoyama Gakuin University, 5-10-1 Fuchinobe, Sagamihara, Kanagawa 252-5258, Japan
| | - S Kakuchi
- Department of Physical Sciences, Aoyama Gakuin University, 5-10-1 Fuchinobe, Sagamihara, Kanagawa 252-5258, Japan
| | - N Katsuki
- Interdisciplinary Graduate School of Engineering Sciences, Kyushu University, Kasuga 816-8580, Japan
| | - R Kawamura
- Department of Physical Sciences, Aoyama Gakuin University, 5-10-1 Fuchinobe, Sagamihara, Kanagawa 252-5258, Japan
| | - Y Kawamura
- Department of Physical Sciences, Aoyama Gakuin University, 5-10-1 Fuchinobe, Sagamihara, Kanagawa 252-5258, Japan
| | - S Kisaka
- Department of Physical Science, Hiroshima University, Higashi-Hiroshima 739-8526, Japan
| | - T Kojima
- Interdisciplinary Graduate School of Engineering Sciences, Kyushu University, Kasuga 816-8580, Japan
| | - A Konuma
- Institute for Laser Science, University of Electro-Communications, 1-5-1 Chofugaoka, Chofu, Tokyo 182-8585, Japan
| | - R Kumar
- Graduate School of Science, Osaka University, 1-1 Machikane-yama, Toyonaka, Osaka 560-0043, Japan
| | - T Minami
- Graduate School of Engineering, Osaka University, 2-1, Yamadaoka, Suita, Osaka 565-0871, Japan
| | - I Miyata
- Department of Physical Sciences, Aoyama Gakuin University, 5-10-1 Fuchinobe, Sagamihara, Kanagawa 252-5258, Japan
| | - T Moritaka
- Fundamental Physics Simulation Research Division, National Institute for Fusion Science, 322-6 Oroshi-cho, Toki 509-5292, Japan
| | - Y Murakami
- Interdisciplinary Graduate School of Engineering Sciences, Kyushu University, Kasuga 816-8580, Japan
| | - K Nagashima
- Interdisciplinary Graduate School of Engineering Sciences, Kyushu University, Kasuga 816-8580, Japan
| | - Y Nakagawa
- Graduate School of Science, Osaka University, 1-1 Machikane-yama, Toyonaka, Osaka 560-0043, Japan
| | - T Nishimoto
- School of Engineering, Osaka University, 2-1, Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Y Nishioka
- Interdisciplinary Graduate School of Engineering Sciences, Kyushu University, Kasuga 816-8580, Japan
| | - Y Ohira
- Department of Earth and Planetary Science, University of Tokyo, 7-3-1 Hongo, Bunkyo, Tokyo 113-0033, Japan
| | - N Ohnishi
- Department of Aerospace Engineering, Tohoku University, 6-6 Aramaki Aza Aoba, Aoba, Sendai, Miyagi 980-8579, Japan
| | - M Ota
- Graduate School of Science, Osaka University, 1-1 Machikane-yama, Toyonaka, Osaka 560-0043, Japan
| | - N Ozaki
- Graduate School of Engineering, Osaka University, 2-1, Yamadaoka, Suita, Osaka 565-0871, Japan
| | - T Sano
- Institute of Laser Engineering, Osaka University, 2-6, Yamadaoka, Suita, Osaka 565-0871, Japan
| | - K Sakai
- Graduate School of Engineering, Osaka University, 2-1, Yamadaoka, Suita, Osaka 565-0871, Japan
| | - S Sei
- Department of Physical Sciences, Aoyama Gakuin University, 5-10-1 Fuchinobe, Sagamihara, Kanagawa 252-5258, Japan
| | - J Shiota
- Department of Physical Sciences, Aoyama Gakuin University, 5-10-1 Fuchinobe, Sagamihara, Kanagawa 252-5258, Japan
| | - Y Shoji
- Department of Physical Sciences, Aoyama Gakuin University, 5-10-1 Fuchinobe, Sagamihara, Kanagawa 252-5258, Japan
| | - K Sugiyama
- Department of Physical Sciences, Aoyama Gakuin University, 5-10-1 Fuchinobe, Sagamihara, Kanagawa 252-5258, Japan
| | - D Suzuki
- Department of Physical Sciences, Aoyama Gakuin University, 5-10-1 Fuchinobe, Sagamihara, Kanagawa 252-5258, Japan
| | - M Takagi
- Interdisciplinary Graduate School of Engineering Sciences, Kyushu University, Kasuga 816-8580, Japan
| | - H Toda
- Department of Physical Sciences, Aoyama Gakuin University, 5-10-1 Fuchinobe, Sagamihara, Kanagawa 252-5258, Japan
| | - S Tomita
- Astronomical Institute, Tohoku University, 6-3 Aramaki, Aoba-ku, Sendai, Miyagi 980-8578, Japan
- Frontier Research Institute for Interdisciplinary Sciences, Tohoku University, Sendai 980-8578, Japan
| | - S Tomiya
- Department of Physical Sciences, Aoyama Gakuin University, 5-10-1 Fuchinobe, Sagamihara, Kanagawa 252-5258, Japan
| | - H Yoneda
- Institute for Laser Science, University of Electro-Communications, 1-5-1 Chofugaoka, Chofu, Tokyo 182-8585, Japan
| | - T Takezaki
- Department of Creative Engineering, National Institute of Technology, Kitakyushu College, 5-20-1 Shii, Kokuraminamiku, Kitakyushu, Fukuoka 802-0985, Japan
- Faculty of Engineering, University of Toyama, 3190, Gofuku, Toyama 930-8555, Japan
| | - K Tomita
- Faculty of Engineering Sciences, Kyushu University, 6-1 Kasuga-Koen, Kasuga, Fukuoka 816-8580, Japan
- Division of Quantum Science and Engineering, Hokkaido University, Sapporo 060-8628, Japan
| | - Y Kuramitsu
- Graduate School of Engineering, Osaka University, 2-1, Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Y Sakawa
- Institute of Laser Engineering, Osaka University, 2-6, Yamadaoka, Suita, Osaka 565-0871, Japan
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Kiuchi S, Hisatake S, Murakami Y, Sano T, Ikeda T. Early Initiation of Tolvaptan is Associated with Early Discharge in Elderly Heart Failure Patients. Eur Cardiol 2021; 16:e67. [PMID: 35106083 PMCID: PMC8785079 DOI: 10.15420/ecr.2021.16.po11] [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] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- Shunsuke Kiuchi
- Department of Cardiovascular Medicine, Toho University Graduate School of Medicine, Tokyo, Japan
| | - Shinji Hisatake
- Department of Cardiovascular Medicine, Toho University Graduate School of Medicine, Tokyo, Japan
| | - Yoshiki Murakami
- Department of Cardiovascular Medicine, Toho University Graduate School of Medicine, Tokyo, Japan
| | - Takahide Sano
- Department of Cardiovascular Medicine, Toho University Graduate School of Medicine, Tokyo, Japan
| | - Takanori Ikeda
- Department of Cardiovascular Medicine, Toho University Graduate School of Medicine, Tokyo, Japan
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21
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Imano N, Kimura T, Kawahara D, Kubo K, Takeuchi Y, Saito A, Nishibuchi I, Murakami Y, Nagata Y. Potential Benefits of Volumetric Modulated Arc Therapy to Reduce the Incidence of Grade 2 Radiation Pneumonitis in Radiotherapy for Locally Advanced Non-Small Cell Lung Cancer Patients. Int J Radiat Oncol Biol Phys 2021. [DOI: 10.1016/j.ijrobp.2021.07.1244] [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: 10/20/2022]
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22
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Ikarashi A, Murakami Y, Toshiyasu T, Yoshioka M, Kamima T, Tokumasu K, Nakano M, Hashimoto T, Oguchi M, Yoshioka Y. Prediction of Late Xerostomia after Radiotherapy by Integrating Dosiomics and Conventional Predictive Factors in Patients With Oropharyngeal Cancer. Int J Radiat Oncol Biol Phys 2021. [DOI: 10.1016/j.ijrobp.2021.07.546] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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23
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Murakami Y, Murakami Y, Kamima T, Abo N, Takahashi T, Kaneko M, Nakano M, Matsubayashi F, Harada A, Taguchi S, Hashimoto T, Oguchi M, Yoshioka Y. Dosimetric Comparison Between 3D Conformal Radiation Therapy Plus Electron Boost and Simultaneous Integrated Boost Volumetric Modulated Arc Therapy for Left-Sided Breast Cancer Patients With a Potential Risk of Radiation-Induced Cardiac Toxicity. Int J Radiat Oncol Biol Phys 2021. [DOI: 10.1016/j.ijrobp.2021.07.1435] [Citation(s) in RCA: 1] [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: 11/28/2022]
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24
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Kuzume K, Koizumi M, Kagata Y, Nishimura K, Kuwabara Y, Okamoto M, Asami T, Murakami Y, Yagi Y, Midoro-Horiuti T. A056 HOW TO DRINK MILK - ASSESSMENT OF AN INTERMITTENT ORAL IMMUNOTHERAPY FOR SEVERE MILK ALLERGY. Ann Allergy Asthma Immunol 2021. [DOI: 10.1016/j.anai.2021.08.040] [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: 10/19/2022]
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25
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Nagata Y, Ozawa S, Kawahara D, Miura H, Nakao M, Murakami Y, Nishibuchi I. Survey of IMRT in Japan. Int J Radiat Oncol Biol Phys 2021. [DOI: 10.1016/j.ijrobp.2021.07.1035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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26
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Murakami Y, Soyano T, Kozuka T, Ushijima M, Koizumi Y, Miyauchi H, Kaneko M, Nakano M, Kamima T, Hashimoto T, Oguchi M, Yoshioka Y. Can Dosiomics Features Be Relevant Predictive Factors for Biochemical Recurrence After Radiotherapy in Prostate Cancer Patients? Int J Radiat Oncol Biol Phys 2021. [DOI: 10.1016/j.ijrobp.2021.07.498] [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: 11/25/2022]
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27
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Ebata A, Taki T, Mori S, Murakami Y, Okumura M, Akanabe H, Imai S, Yokota K, Akiyama M. 283 Neutrophil/lymphocyte ratio as a predictor of lymph node metastasis in extramammary Paget disease: A retrospective study. J Invest Dermatol 2021. [DOI: 10.1016/j.jid.2021.08.289] [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: 10/20/2022]
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28
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Saiki R, Momozawa Y, Nannya Y, Nakagawa M, Ochi Y, Yoshizato T, Terao C, Kuroda Y, Shiraishi Y, Chiba K, Tanaka H, Niida A, Imoto S, Matsuda K, Morisaki T, Murakami Y, Kamatani Y, Matsuda S, Kubo M, Miyano S, Makishima H, Ogawa S. Topic: AS04-MDS Biology and Pathogenesis/AS04a-Normal, MDS, and leukemic stem cells. Leuk Res 2021. [DOI: 10.1016/j.leukres.2021.106679.3] [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: 10/20/2022]
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Honda T, Yamada N, Murayama A, Shiina M, Aly HH, Kato A, Ito T, Ishizu Y, Kuzuya T, Ishigami M, Murakami Y, Tanaka T, Moriishi K, Nishitsuji H, Shimotohno K, Ishikawa T, Fujishiro M, Muramatsu M, Wakita T, Kato T. Amino Acid Polymorphism in Hepatitis B Virus Associated With Functional Cure. Cell Mol Gastroenterol Hepatol 2021; 12:1583-1598. [PMID: 34352407 PMCID: PMC8536788 DOI: 10.1016/j.jcmgh.2021.07.013] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/08/2020] [Revised: 07/23/2021] [Accepted: 07/26/2021] [Indexed: 12/12/2022]
Abstract
BACKGROUND & AIMS To provide an adequate treatment strategy for chronic hepatitis B, it is essential to know which patients are expected to have a good prognosis and which patients do not require therapeutic intervention. Previously, we identified the substitution of isoleucine to leucine at amino acid 97 (I97L) in the hepatitis B core region as a key predictor among patients with stable hepatitis. In this study, we attempted to identify the point at which I97L affects the hepatitis B virus (HBV) life cycle and to elucidate the underlying mechanisms governing the stabilization of hepatitis. METHODS To confirm the clinical features of I97L, we used a cohort of hepatitis B e antigen-negative patients with chronic hepatitis B infected with HBV-I97 wild-type (wt) or HBV-I97L. The effects of I97L on viral characteristics were evaluated by in vitro HBV production and infection systems with the HBV reporter virus and cell culture-generated HBV. RESULTS The ratios of reduction in hepatitis B surface antigen and HBV DNA were higher in patients with HBV-I97L than in those with HBV-I97wt. HBV-I97L exhibited lower infectivity than HBV-I97wt in both infection systems with reporter HBV and cell culture-generated HBV. HBV-I97L virions exhibiting low infectivity primarily contained a single-stranded HBV genome. The lower efficiency of cccDNA synthesis was demonstrated after infection of HBV-I97L or transfection of the molecular clone of HBV-I97L. CONCLUSIONS The I97L substitution reduces the level of cccDNA through the generation of immature virions with single-stranded genomes. This I97L-associated low efficiency of cccDNA synthesis may be involved in the stabilization of hepatitis.
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Affiliation(s)
- Takashi Honda
- Department of Gastroenterology and Hepatology, Nagoya University Graduate School of Medicine, Nagoya
| | - Norie Yamada
- Department of Virology II, National Institute of Infectious Diseases, Tokyo
| | - Asako Murayama
- Department of Virology II, National Institute of Infectious Diseases, Tokyo
| | - Masaaki Shiina
- Department of Virology II, National Institute of Infectious Diseases, Tokyo
| | - Hussein Hassan Aly
- Department of Virology II, National Institute of Infectious Diseases, Tokyo
| | - Asuka Kato
- Department of Gastroenterology and Hepatology, Nagoya University Graduate School of Medicine, Nagoya
| | - Takanori Ito
- Department of Gastroenterology and Hepatology, Nagoya University Graduate School of Medicine, Nagoya
| | - Yoji Ishizu
- Department of Gastroenterology and Hepatology, Nagoya University Graduate School of Medicine, Nagoya
| | - Teiji Kuzuya
- Department of Gastroenterology and Hepatology, Nagoya University Graduate School of Medicine, Nagoya
| | - Masatoshi Ishigami
- Department of Gastroenterology and Hepatology, Nagoya University Graduate School of Medicine, Nagoya
| | - Yoshiki Murakami
- Department of Molecular Pathology, Tokyo Medical University, Tokyo
| | - Tomohisa Tanaka
- Department of Microbiology, Graduate School of Medicine, University of Yamanashi, Yamanashi
| | - Kohji Moriishi
- Department of Microbiology, Graduate School of Medicine, University of Yamanashi, Yamanashi
| | - Hironori Nishitsuji
- Genome Medical Sciences Project, National Center for Global Health and Medicine, Ichikawa, Japan
| | - Kunitada Shimotohno
- Genome Medical Sciences Project, National Center for Global Health and Medicine, Ichikawa, Japan
| | - Tetsuya Ishikawa
- Department of Gastroenterology and Hepatology, Nagoya University Graduate School of Medicine, Nagoya
| | - Mitsuhiro Fujishiro
- Department of Gastroenterology and Hepatology, Nagoya University Graduate School of Medicine, Nagoya
| | | | - Takaji Wakita
- Department of Virology II, National Institute of Infectious Diseases, Tokyo
| | - Takanobu Kato
- Department of Virology II, National Institute of Infectious Diseases, Tokyo,Correspondence Address correspondence to: Takanobu Kato, MD, PhD, Toyama 1-23-1, Shinjuku-ku, Tokyo 162-8640, Japan. fax: +81-3-5285-1161.
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Kikukawa K, Uchida-Kobayashi S, Tamori A, Yoshida K, Kotani K, Motoyama H, Kozuka R, Hagihara A, Fujii H, Morikawa H, Enomoto M, Murakami Y, Kawada N. Serum Mac-2-binding protein glycosylation isomer predicts esophagogastric varices in cirrhotic patients with chronic hepatitis C virus infection treated with IFN-free direct-acting antiviral agent: M2BPGi levels predict varices in SVR patients. Ann Hepatol 2021; 19:367-372. [PMID: 32444247 DOI: 10.1016/j.aohep.2020.04.002] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/15/2020] [Revised: 04/22/2020] [Accepted: 04/23/2020] [Indexed: 02/06/2023]
Abstract
INTRODUCTION AND OBJECTIVES We examined whether Mac-2-binding protein glycosylation isomer (M2BPGi) levels could be a predictive marker for the presence of esophagogastric varices (EGV) in cirrhotic patients after hepatitis C virus (HCV) eradication with direct-acting antivirals (DAAs). PATIENTS AND METHODS A total of 102 cirrhotic patients with HCV infection treated with DAAs were enrolled. Esophagogastroduodenoscopy was performed in 84 of the patients before treatment (Cohort A), in 66 after treatment (Cohort B), and in 48 at both time points (Cohort C). We examined factors associated with EGV before and after DAA treatment. RESULTS In Cohort A, M2BPGi levels and liver stiffness were significantly higher in the EGV-positive group than the EGV-negative group (p=0.034, and p=0.042, respectively). The proportion of EGV-positive patients with before-treatment levels of M2BPGi ≧ 7.3 C.O.I. was significantly higher than in patients with M2BPGi levels<7.3 C.O.I. (p=0.015). In Cohort B, M2BPGi levels were significantly higher in the EGV-positive group than EGV-negative group (p=0.003). The proportion of EGV-positive patients with after-treatment levels of M2BPGi ≧ 3.4 C.O.I. was significantly higher than in patients with M2BPGi levels<3.4C.O.I. (p=0.001). In Cohort C, M2BPGi levels decreased during DAA treatment regardless of EGV development, but there was no significant difference in the reduction of M2BPGi among the EGV-improvement, EGV-invariant, and EGV-exacerbation groups (p=0.659). CONCLUSIONS M2BPGi levels may be a novel serum marker for the presence of EGV before and after DAA treatment.
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Affiliation(s)
- Kanako Kikukawa
- Department of Hepatology, Endowed Department of Liver Cirrhosis Therapeutics, Japan
| | | | - Akihiro Tamori
- Department of Hepatology, Endowed Department of Liver Cirrhosis Therapeutics, Japan; Department of Bool Transfusion, Osaka City University Hospital, Japan.
| | - Kanako Yoshida
- Department of Hepatology, Endowed Department of Liver Cirrhosis Therapeutics, Japan
| | - Kohei Kotani
- Department of Hepatology, Endowed Department of Liver Cirrhosis Therapeutics, Japan
| | - Hiroyuki Motoyama
- Department of Hepatology, Endowed Department of Liver Cirrhosis Therapeutics, Japan
| | - Ritsuzo Kozuka
- Department of Hepatology, Endowed Department of Liver Cirrhosis Therapeutics, Japan
| | - Atsushi Hagihara
- Department of Hepatology, Endowed Department of Liver Cirrhosis Therapeutics, Japan
| | - Hideki Fujii
- Department of Premier Preventive Medicine, Japan; Osaka City University Graduate School of Medicine, Japan
| | - Hiroyasu Morikawa
- Department of Hepatology, Endowed Department of Liver Cirrhosis Therapeutics, Japan
| | - Masaru Enomoto
- Department of Hepatology, Endowed Department of Liver Cirrhosis Therapeutics, Japan
| | - Yoshiki Murakami
- Department of Hepatology, Endowed Department of Liver Cirrhosis Therapeutics, Japan
| | - Norifumi Kawada
- Department of Hepatology, Endowed Department of Liver Cirrhosis Therapeutics, Japan; Department of Premier Preventive Medicine, Japan
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31
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Nishimura S, Yashiro M, Sera T, Yamamoto Y, Kushitani Y, Sugimoto A, Kushiyama S, Togano S, Kuroda K, Okuno T, Murakami Y, Ohira M. Serine threonine kinase 11/liver kinase B1 mutation in sporadic scirrhous-type gastric cancer cells. Carcinogenesis 2021; 41:1616-1623. [PMID: 32236518 DOI: 10.1093/carcin/bgaa031] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2019] [Revised: 03/20/2020] [Accepted: 03/30/2020] [Indexed: 01/24/2023] Open
Abstract
Scirrhous-type gastric carcinoma (SGC), which is characterized by the rapid proliferation of cancer cells accompanied by extensive fibrosis, shows extremely poor survival. A reason for the poor prognosis of SGC is that the driver gene responsible for SGC has not been identified. To identify the characteristic driver gene of SGC, we examined the genomic landscape of six human SGC cell lines of OCUM-1, OCUM-2M, OCUM-8, OCUM-9, OCUM-12 and OCUM-14, using multiplex gene panel testing by next-generation sequencing. In this study, the non-synonymous mutations of serine threonine kinase 11/liver kinase B1 (STK11/LKB1) gene were detected in OCUM-12, OCUM-2M and OCUM-14 among the six SGC cell lines. Capillary sequencing analysis confirmed the non-sense or missense mutation of STK11/LKB1 in the three cell lines. Western blot analysis showed that LKB1 expression was decreased in OCUM-12 cells and OCUM-14 cells harboring STK11/LKB1 mutation. The mammalian target of rapamycin (mTOR) inhibitor significantly inhibited the proliferation of OCUM-12 and OCUM-14 cells. The correlations between STK11/LKB1 expression and clinicopathologic features of gastric cancer were examined using 708 primary gastric carcinomas by immunochemical study. The low STK11/LKB1 expression group was significantly associated with SGC, high invasion depth and frequent nodal involvement, in compared with the high STK11/LKB1 expression group. Collectively, our study demonstrated that STK11/LKB1 mutation might be responsible for the progression of SGC, and suggested that mTOR signaling by STK11/LKB1 mutation might be one of therapeutic targets for patients with SGC.
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Affiliation(s)
- Sadaaki Nishimura
- Molecular Oncology and Therapeutics, Osaka City University Graduate School of Medicine, Osaka, Japan.,Department of Gastroenterological Surgery, Osaka City University Graduate School of Medicine, Osaka, Japan.,Cancer Center for Translational Research, Osaka City University Graduate School of Medicine, Osaka, Japan
| | - Masakazu Yashiro
- Molecular Oncology and Therapeutics, Osaka City University Graduate School of Medicine, Osaka, Japan.,Department of Gastroenterological Surgery, Osaka City University Graduate School of Medicine, Osaka, Japan.,Cancer Center for Translational Research, Osaka City University Graduate School of Medicine, Osaka, Japan
| | - Tomohiro Sera
- Molecular Oncology and Therapeutics, Osaka City University Graduate School of Medicine, Osaka, Japan.,Department of Gastroenterological Surgery, Osaka City University Graduate School of Medicine, Osaka, Japan.,Cancer Center for Translational Research, Osaka City University Graduate School of Medicine, Osaka, Japan
| | - Yurie Yamamoto
- Department of Gastroenterological Surgery, Osaka City University Graduate School of Medicine, Osaka, Japan.,Cancer Center for Translational Research, Osaka City University Graduate School of Medicine, Osaka, Japan
| | - Yukako Kushitani
- Molecular Oncology and Therapeutics, Osaka City University Graduate School of Medicine, Osaka, Japan.,Department of Gastroenterological Surgery, Osaka City University Graduate School of Medicine, Osaka, Japan.,Cancer Center for Translational Research, Osaka City University Graduate School of Medicine, Osaka, Japan
| | - Atsushi Sugimoto
- Molecular Oncology and Therapeutics, Osaka City University Graduate School of Medicine, Osaka, Japan.,Department of Gastroenterological Surgery, Osaka City University Graduate School of Medicine, Osaka, Japan.,Cancer Center for Translational Research, Osaka City University Graduate School of Medicine, Osaka, Japan
| | - Shuhei Kushiyama
- Molecular Oncology and Therapeutics, Osaka City University Graduate School of Medicine, Osaka, Japan.,Department of Gastroenterological Surgery, Osaka City University Graduate School of Medicine, Osaka, Japan.,Cancer Center for Translational Research, Osaka City University Graduate School of Medicine, Osaka, Japan
| | - Shingo Togano
- Molecular Oncology and Therapeutics, Osaka City University Graduate School of Medicine, Osaka, Japan.,Department of Gastroenterological Surgery, Osaka City University Graduate School of Medicine, Osaka, Japan.,Cancer Center for Translational Research, Osaka City University Graduate School of Medicine, Osaka, Japan
| | - Kenji Kuroda
- Molecular Oncology and Therapeutics, Osaka City University Graduate School of Medicine, Osaka, Japan.,Department of Gastroenterological Surgery, Osaka City University Graduate School of Medicine, Osaka, Japan.,Cancer Center for Translational Research, Osaka City University Graduate School of Medicine, Osaka, Japan
| | - Tomohisa Okuno
- Molecular Oncology and Therapeutics, Osaka City University Graduate School of Medicine, Osaka, Japan.,Department of Gastroenterological Surgery, Osaka City University Graduate School of Medicine, Osaka, Japan.,Cancer Center for Translational Research, Osaka City University Graduate School of Medicine, Osaka, Japan
| | - Yoshiki Murakami
- Department of Molecular Pathology, Tokyo Medical University, Tokyo, Japan
| | - Masaichi Ohira
- Department of Gastroenterological Surgery, Osaka City University Graduate School of Medicine, Osaka, Japan
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32
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Ueki T, Sanematsu E, Furuya Y, Shinohara Y, Murakami Y, Miyazaki A, Sakamoto Y, Nakashima MN, Nakashima M. Relationship between vancomycin-associated nephrotoxicity and the number of combined nephrotoxic agents. Pharmazie 2021; 75:279-283. [PMID: 32539926 DOI: 10.1691/ph.2020.0393] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 09/29/2022]
Abstract
Vancomycin is associated with nephrotoxicity; however, the influence of the number of combined nephrotoxic agents on the incidence of vancomycin nephrotoxicity has not been clarified. We investigated patient backgrounds in 148 inpatients who received vancomycin treatment. The patients were divided into nephrotoxicity (n=35) and non-nephrotoxicity (n=113) groups. A comparison of the patient backgrounds in the two groups revealed significant differences in weight, changes in serum creatinine before vancomycin administration, blood urea nitrogen to serum creatinine ratio, length of vancomycin therapy, vancomycin trough concentration, and number of combined nephrotoxic agents. Multiple logistic regression analysis using these six factors as autonomous variables showed that the highest vancomycin trough concentration (odds ratio, 1.080; 95% confidence interval, 1.030-1.140; p = 0.003) and the number of combined nephrotoxic agents (odds ratio, 1.590; 95% confidence interval, 1.120-2.260; p = 0.010) were significantly related to nephrotoxicity.
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Affiliation(s)
- T Ueki
- Department of Hospital Pharmacy, Hospital of the University of Occupational and Environmental Health, Iseigaoka, Yahatanishi-ku, Kitakyushu, Fukuoka, Japan; Department of Pharmacy, Kitakyushu Municipal Medical Center, Sojo University, Japan; Department of Pharmacy Practice, Graduate School of Biomedical Sciences, Nagasaki University, Sojo University, Japan;,
| | - E Sanematsu
- Department of Hospital Pharmacy, Hospital of the University of Occupational and Environmental Health, Iseigaoka, Yahatanishi-ku, Kitakyushu, Fukuoka, Japan
| | - Y Furuya
- Department of Hospital Pharmacy, Hospital of the University of Occupational and Environmental Health, Iseigaoka, Yahatanishi-ku, Kitakyushu, Fukuoka, Japan
| | - Y Shinohara
- Department of Hospital Pharmacy, Hospital of the University of Occupational and Environmental Health, Iseigaoka, Yahatanishi-ku, Kitakyushu, Fukuoka, Japan
| | - Y Murakami
- Department of Pharmacy, Kitakyushu Municipal Medical Center, Sojo University, Japan
| | - A Miyazaki
- Department of Pharmacy, Kitakyushu Municipal Medical Center, Sojo University, Japan
| | - Y Sakamoto
- Department of Pharmacy, Kitakyushu Municipal Medical Center, Sojo University, Japan
| | - M N Nakashima
- Faculty of Pharmaceutical Sciences, Sojo University, Japan
| | - M Nakashima
- Department of Pharmacy Practice, Graduate School of Biomedical Sciences, Nagasaki University, Sojo University, Japan
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Imai Y, Sakurai M, Nakagawa H, Hirata A, Murakami Y, Kiyohara Y, Ninomiya T, Ishikawa S, Saitoh S, Irie F, Sairenchi T, Kiyama M, Miura K, Ueshima H, Okamura T. Impact of Proteinuria and Low eGFR on Lifetime Risk of Cardiovascular Disease Death: A Pooled Analysis of Data From the Evidence for Cardiovascular Prevention From Observational Cohorts in Japan Study. Eur J Prev Cardiol 2021. [DOI: 10.1093/eurjpc/zwab061.179] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Abstract
Funding Acknowledgements
Type of funding sources: Public grant(s) – National budget only. Main funding source(s): H20–Junkankitou [Seishuu]–Ippan–013; H23–Junkankitou [Seishuu]–Ippan–005; H26-Junkankitou [Seisaku]-Ippan-001; H29–Junkankitou–Ippan–003 and 20FA1002
OnBehalf
EPOCH-JAPAN
Introduction
Absolute risk of Lifetime risk (LTR) is useful estimate for risk communication compared with short term risk or relative risk especially for young people. Proteinuria is leading cause of end-stage kidney disease (ESKD) and independent risk factor for cardiovascular disease (CVD). Although nonproteinuric renal disease is global burden of ESKD, it has been poorly focused. To date, there have been no reports of impact of proteinuria and low eGFR on LTR with the outcome of CVD death in Asian population.
Purpose
We aimed to estimate LTR of CVD death stratified by the status of proteinuria and low eGFR.
Methods
We used modified Kaplan-Meier approach to estimate the remaining lifetime risk of cardiovascular death based on EPOCH-JAPAN(Evidence for Cardiovascular Prevention From Observational Cohorts in Japan) database. LTR was estimated at each index age starting from 40 years for those with proteinuria and without proteinuria stratified by low eGFR, which is defined as eGFR <60 ml/min/1.73 m². Participants were classified into three groups, which were those with proteinuria (Proteinuria (+)), those without proteinuria with low eGFR (Proteinuria (-)/Low eGFR (+)), those without proteinuria without low eGFR (Proteinuria (-)/Low eGFR (-)).
Results
A total of 47,292 participants from 9 cohorts was included in the analysis. Mean follow-up period was 14.6 years with 690,463 person years and total CVD death was 1,075 in men and 1,193 in women. The LTRs at the index age of 40 years were as follows: 17.7% (95% confidence interval: 15.4 – 19.0%) in Proteinuria (-)/Low eGFR (-) group, 26.2% (20.2 – 31.1%) in Proteinuria (-)/low eGFR (+) group, 24.5% (15.1 – 29.3%) in Proteinuria (+) group for men; 15.3%(13.7 – 16.5%), 29.9%(14.7 – 46.8%) , 28.3%(19.4 – 34.7%) for women.
Conclusions
We observed that those without proteinuria with low eGFR have equivalently high LTR with those with proteinuria. These results indicate that even in the absence of proteinuria, low eGFR has high impact on LTR. Lifestyle modification from young age is necessary to prevent from renal dysfunction.
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Affiliation(s)
- Y Imai
- Keio University School of Medicine, Tokyo, Japan
| | - M Sakurai
- Kanazawa Medical University, Department of Epidemiology and Public Health, Kanazawa, Japan
| | - H Nakagawa
- Kanazawa Medical University, Department of Epidemiology and Public Health, Kanazawa, Japan
| | - A Hirata
- Keio University School of Medicine, Tokyo, Japan
| | - Y Murakami
- Toho University, Department of Medical Statistics, Tokyo, Japan
| | - Y Kiyohara
- Hisayama Research Institute for Lifestyle Disease, Fukuoka, Japan
| | - T Ninomiya
- Kyushu University Graduate School of Medical Sciences, Department of Epidemiology and Public Health, Fukuoka, Japan
| | - S Ishikawa
- Jichi Medical University, Medical Education Center, Tochigi, Japan
| | - S Saitoh
- Sapporo Medical University School of Health Sciences, Department of Nursing, Hokkaido, Japan
| | - F Irie
- Ibaraki Prefectural Office, Department of Health and Welfare, Ibaraki, Japan
| | - T Sairenchi
- Dokkyo Medical University School of Medicine, Department of Public Health, Tochigi, Japan
| | - M Kiyama
- Osaka Medical Center for Cancer and Cardiovascular Diseases, Osaka, Japan
| | - K Miura
- Shiga University of Medical Science, Department of Public Health, Shiga, Japan
| | - H Ueshima
- Shiga University of Medical Science, Department of Public Health, Shiga, Japan
| | - T Okamura
- Keio University School of Medicine, Tokyo, Japan
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Suzuki K, Kondo N, Takagi K, Nishikawa A, Murakami Y, Otsuka M, Tsukano K, Ikeda K, Funakura H, Yasutomi I, Kawamoto S. Validation of the bovine blood calcium checker as a rapid and simple measuring tool for the ionized calcium concentration in cattle. J Vet Med Sci 2021; 83:767-774. [PMID: 33775988 PMCID: PMC8182322 DOI: 10.1292/jvms.21-0001] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
Point-of-care (POC) devices that veterinary practitioners can use to easily and rapidly measure blood ionized calcium (iCa) levels in cows immediately after
withdrawing a blood sample on the dairy farm are needed. Aims of present studies was to compare the commercially available ion-selective electrode handheld iCa
meter (bovine blood iCa checker) with the benchtop blood gas analyzer GEM premier 3500 and handheld analyzer i-STAT 1. Sixty-two paired-point whole blood
samples were obtained from three cows with hypocalcemia experimentally induced by Na2-EDTA infusion. Whole blood samples were also obtained from the
36 cows kept on a farm in field conditions. The results using the bovine blood iCa checker correlated with those using the GEM premier 3500 and i-STAT 1. Bovine
blood iCa checker was “compatible” with the GEM premier 3500 and i-STAT 1 because the frequency of differences between the measurements within ± 20% of the mean
were 100% (65/65, >75%) and 90.8% (59/65, >75%), respectively. In the field trial, the blood iCa concentration measured by the bovine blood Ca checker was
significantly positively correlated with that measured by the i-STAT 1 portable analyzer. Bovine blood iCa checker was “compatible” with the i-STAT 1 because
the frequency of differences between the measurements within ± 20% of the mean was 100% (36/36, >75%). Results from these findings, the bovine blood iCa
checker may be applied as a simplified system to measure the iCa concentration in bovine whole blood.
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Affiliation(s)
- Kazuyuki Suzuki
- The School of Veterinary Medicine, Rakuno Gakuen University, 582 Midorimachi, Bunnkyoudai, Ebetsu, Hokkaido 069-8501, Japan
| | - Nao Kondo
- Arekinai Livestock Veterinary Clinic, Hokkaido Higashi Agricultural Mutual Aid Association, 177-3 Kita1senn, Aza Arekinaigenya, Shibecha-cho, Kawakami-gun, Hokkaido 088-2272, Japan
| | - Kaede Takagi
- Ishigaki Bovine Hospital, Okinawa 907-0024, Japan
| | - Akitoyo Nishikawa
- Hamanaka Livestock Veterinary Clinic, Hokkaido Higashi Agricultural Mutual Aid Association, 33 Chanai-Midori, Hamanaka-cho, Akkeshi-gun, Hokkaido 088-1361, Japan
| | - Yoshiki Murakami
- The School of Veterinary Medicine, Rakuno Gakuen University, 582 Midorimachi, Bunnkyoudai, Ebetsu, Hokkaido 069-8501, Japan
| | - Marina Otsuka
- The School of Veterinary Medicine, Rakuno Gakuen University, 582 Midorimachi, Bunnkyoudai, Ebetsu, Hokkaido 069-8501, Japan
| | - Kenji Tsukano
- The School of Veterinary Medicine, Rakuno Gakuen University, 582 Midorimachi, Bunnkyoudai, Ebetsu, Hokkaido 069-8501, Japan
| | - Keiko Ikeda
- The School of Veterinary Medicine, Rakuno Gakuen University, 582 Midorimachi, Bunnkyoudai, Ebetsu, Hokkaido 069-8501, Japan
| | | | - Ichiro Yasutomi
- Yubetsu Herd Management Service, 450-3 Baro, Yubetsu, Monbetsu-gun, Hokkaido 093-0731, Japan
| | - Satoshi Kawamoto
- The School of Veterinary Medicine, Rakuno Gakuen University, 582 Midorimachi, Bunnkyoudai, Ebetsu, Hokkaido 069-8501, Japan
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Umezu T, Takanashi M, Murakami Y, Ohno SI, Kanekura K, Sudo K, Nagamine K, Takeuchi S, Ochiya T, Kuroda M. Acerola exosome-like nanovesicles to systemically deliver nucleic acid medicine via oral administration. Mol Ther Methods Clin Dev 2021; 21:199-208. [PMID: 33850951 PMCID: PMC8010214 DOI: 10.1016/j.omtm.2021.03.006] [Citation(s) in RCA: 42] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/23/2020] [Accepted: 03/06/2021] [Indexed: 12/19/2022]
Abstract
Extracellular vesicles derived from mammalian cells could be useful carriers for drug delivery systems (DDSs); however, with regard to clinical application, there are several issues to be overcome. Acerola (Malpighia emarginata DC.) is a popular health food. In this study, the feasibility of orally administered nucleic acid drug delivery by acerola exosome-like nanoparticles (AELNs) was examined. AELNs were recovered from acerola juice using an affinity column instead of ultracentrifugation. MicroRNA (miRNA) was sufficiently encapsulated in AELNs by 30-min incubation on ice and was protected against RNase, strong acid, and base treatments. The administration of an AELN/miRNA mixture in cells achieved downregulation of the miRNA’s target gene, and this mixture showed cytoplasmic localization. AELNs orally delivered small RNA to the digestive system in vivo. The target gene-suppressing effect in the small intestine and liver peaked 1 day after administration, indicating potential for use as an oral DDS for nucleic acid in the digestive system.
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Affiliation(s)
- Tomohiro Umezu
- Department of Molecular Pathology, Tokyo Medical University, Tokyo, Japan
| | | | - Yoshiki Murakami
- Department of Molecular Pathology, Tokyo Medical University, Tokyo, Japan
| | - Shin-Ichiro Ohno
- Department of Molecular Pathology, Tokyo Medical University, Tokyo, Japan
| | - Kohsuke Kanekura
- Department of Molecular Pathology, Tokyo Medical University, Tokyo, Japan
| | - Katsuko Sudo
- Preclinical Research Center, Tokyo Medical University, Tokyo, Japan
| | - Kenichi Nagamine
- Research and Development, Global Innovation Center, Nichirei Biosciences inc, Tokyo, Japan
| | - Shin Takeuchi
- Research and Development, Global Innovation Center, Nichirei Biosciences inc, Tokyo, Japan
| | - Takahiro Ochiya
- Department of Molecular and Cellular Medicine, Institute of Medical Science, Tokyo Medical University, Tokyo, Japan
| | - Masahiko Kuroda
- Department of Molecular Pathology, Tokyo Medical University, Tokyo, Japan
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Umezu T, Tsuneyama K, Kanekura K, Hayakawa M, Tanahashi T, Kawano M, Taguchi YH, Toyoda H, Tamori A, Kuroda M, Murakami Y. Comprehensive analysis of liver and blood miRNA in precancerous conditions. Sci Rep 2020; 10:21766. [PMID: 33303811 PMCID: PMC7728755 DOI: 10.1038/s41598-020-78500-1] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [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: 08/28/2020] [Accepted: 11/23/2020] [Indexed: 02/07/2023] Open
Abstract
Streptozotocin administration to mice (STZ-mice) induces type I diabetes and hepatocellular carcinoma (HCC). We attempted to elucidate the carcinogenic mechanism and the miRNA expression status in the liver and blood during the precancerous state. Serum and liver tissues were collected from STZ-mice and non-treated mice (CTL-mice) at 6, 10, and 12 W. The exosome enriched fraction extracted from serum was used. Hepatic histological examination and hepatic and exosomal miRNA expression analysis were serially performed using next-generation sequencing (NGS). Human miRNA expression analysis of chronic hepatitis liver tissue and exosomes, which were collected before starting the antiviral treatment, were also performed. No inflammation or fibrosis was found in the liver of CTL-mice during the observation period. In STZ-mice, regeneration and inflammation of hepatocytes was found at 6 W and nodules of atypical hepatocytes were found at 10 and 12 W. In the liver tissue, during 6-12 W, the expression levels of let-7f-5p, miR-143-3p, 148a-3p, 191-5p, 192-5p, 21a-5p, 22-3p, 26a-5p, and 92a-3p was significantly increased in STZ-mice, and anti-oncogenes of their target gene candidates were down-regulated. miR-122-5p was also significantly down-regulated in STZ-mice. Fifteen exosomal miRNAs were upregulated in STZ-mice. Six miRNAs (let-7f-5p, miR-10b-5p, 143-3p, 191-5p, 21a-5p, and 26a-5p) were upregulated, similarly to human HCC cases. From the precancerous state, aberrant expression of hepatic miRNAs has already occurred, and then, it can promote carcinogenesis. In exosomes, the expression pattern of common miRNAs between mice and humans before carcinogenesis was observed and can be expected to be developed as a cancer predictive marker.
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Affiliation(s)
- Tomohiro Umezu
- Department of Molecular Pathology, Tokyo Medical University, Shinjuku 6-1-1, Shinjuku-ku, Tokyo, 160-8402, Japan
| | - Koichi Tsuneyama
- Department of Pathology and Laboratory Medicine, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, 770-8503, Japan
| | - Kohsuke Kanekura
- Department of Molecular Pathology, Tokyo Medical University, Shinjuku 6-1-1, Shinjuku-ku, Tokyo, 160-8402, Japan
| | - Michiyo Hayakawa
- Department of Pathology and Cell Regulation, Kyoto Prefectural University of Medicine, Kyoto, 602-0841, Japan
| | | | - Mitsuoki Kawano
- Department of Human Nutrition, Faculty of Contemporary Life Science, Chugokugakuen University, Okayama, 701-0197, Japan
| | - Y-H Taguchi
- Department of Physics, Chuo University, Tokyo, 112-8551, Japan
| | - Hidenori Toyoda
- Department of Gastroenterology, Ogaki Municipal Hospital, Ogaki, 503-8502, Japan
| | - Akihiro Tamori
- Department of Hepatology, Graduate School of Medicine, Osaka City University, Osaka, 545-8585, Japan
| | - Masahiko Kuroda
- Department of Molecular Pathology, Tokyo Medical University, Shinjuku 6-1-1, Shinjuku-ku, Tokyo, 160-8402, Japan
| | - Yoshiki Murakami
- Department of Molecular Pathology, Tokyo Medical University, Shinjuku 6-1-1, Shinjuku-ku, Tokyo, 160-8402, Japan.
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Tanaka F, Takashima S, Nadatani Y, Otani K, Hosomi S, Kamata N, Taira K, Nagami Y, Tanigawa T, Fukumoto S, Watanabe T, Murakami Y, Kawada N, Fujiwara Y. Exosomal hsa-miR-933 in Gastric Juice as a Potential Biomarker for Functional Dyspepsia. Dig Dis Sci 2020; 65:3493-3501. [PMID: 31974910 DOI: 10.1007/s10620-020-06096-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/30/2019] [Accepted: 01/20/2020] [Indexed: 01/10/2023]
Abstract
BACKGROUND MicroRNAs (miRNAs) in exosomes represent disease-specific profiles and are applied as biomarkers in oncology. However, in functional dyspepsia (FD), the role of exosomal miRNAs has not been fully elucidated. AIMS To investigate exosomal miRNAs as potential biomarkers of FD using liquid biopsy. METHODS This retrospective cohort study included 11 subjects with FD and 11 age- and sex-matched healthy controls (HCs). We collected gastric juice and isolated exosomal miRNAs. In a discovery cohort, expression levels of 2565 miRNAs were evaluated by 3D-Gene® microarray. miRNA expression profiles from exosomes of subjects with FD and HCs were compared by two normalization methods: (1) global normalization and (2) normalization by internal control. Subsequently, in a validation cohort, the expression levels of miRNAs were validated by quantitative reverse transcription PCR (RT-qPCR). RESULTS Through microarray analysis using the two methods, we identified 39 miRNAs that were consistently and significantly downregulated in FD cases compared with those in HCs. Of these, 12 miRNAs (hsa-miR-933, hsa-miR-345-5p, hsa-miR-708-5p, hsa-miR-203a-3p, hsa-miR-619-5p, hsa-miR-4294, hsa-miR-4481, hsa-miR-196a-5p, hsa-miR-3918, hsa-miR-372-3p, hsa-miR-658, and hsa-miR-3654) were further validated by RT-qPCR. Our results indicated that hsa-miR-933 was significantly downregulated in FD compared with HCs (0.317 ± 0.205-fold, P = 0.0317). Furthermore, the expression level of hsa-miR-933 was negatively associated with dyspepsia score and the frequency of epigastric pain and/or burning (P < 0.01, r = - 0.835; P = 0.0280, r = - 0.688, respectively). CONCLUSIONS Exosomal hsa-miR-933 in gastric juice could be a candidate biomarker for FD.
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Affiliation(s)
- Fumio Tanaka
- Department of Gastroenterology, Graduate School of Medicine, Osaka City University, 1-4-3 Asahimachi, Abeno-ku, Osaka, 545-8585, Japan.
- Department of Premier Preventive Medicine, Graduate School of Medicine, Osaka City University, Osaka, Japan.
| | - Shingo Takashima
- Department of Gastroenterology, Graduate School of Medicine, Osaka City University, 1-4-3 Asahimachi, Abeno-ku, Osaka, 545-8585, Japan
| | - Yuji Nadatani
- Department of Gastroenterology, Graduate School of Medicine, Osaka City University, 1-4-3 Asahimachi, Abeno-ku, Osaka, 545-8585, Japan
- Department of Premier Preventive Medicine, Graduate School of Medicine, Osaka City University, Osaka, Japan
| | - Koji Otani
- Department of Gastroenterology, Graduate School of Medicine, Osaka City University, 1-4-3 Asahimachi, Abeno-ku, Osaka, 545-8585, Japan
- Department of Premier Preventive Medicine, Graduate School of Medicine, Osaka City University, Osaka, Japan
| | - Shuhei Hosomi
- Department of Gastroenterology, Graduate School of Medicine, Osaka City University, 1-4-3 Asahimachi, Abeno-ku, Osaka, 545-8585, Japan
| | - Noriko Kamata
- Department of Gastroenterology, Graduate School of Medicine, Osaka City University, 1-4-3 Asahimachi, Abeno-ku, Osaka, 545-8585, Japan
| | - Koichi Taira
- Department of Gastroenterology, Graduate School of Medicine, Osaka City University, 1-4-3 Asahimachi, Abeno-ku, Osaka, 545-8585, Japan
| | - Yasuaki Nagami
- Department of Gastroenterology, Graduate School of Medicine, Osaka City University, 1-4-3 Asahimachi, Abeno-ku, Osaka, 545-8585, Japan
| | - Tetsuya Tanigawa
- Department of Gastroenterology, Graduate School of Medicine, Osaka City University, 1-4-3 Asahimachi, Abeno-ku, Osaka, 545-8585, Japan
| | - Shinya Fukumoto
- Department of Premier Preventive Medicine, Graduate School of Medicine, Osaka City University, Osaka, Japan
| | - Toshio Watanabe
- Department of Gastroenterology, Graduate School of Medicine, Osaka City University, 1-4-3 Asahimachi, Abeno-ku, Osaka, 545-8585, Japan
| | - Yoshiki Murakami
- Department of Molecular Pathology, Tokyo Medical University, Tokyo, Japan
| | - Norifumi Kawada
- Department of Premier Preventive Medicine, Graduate School of Medicine, Osaka City University, Osaka, Japan
- Department of Hepatology, Graduate School of Medicine, Osaka City University, Osaka, Japan
| | - Yasuhiro Fujiwara
- Department of Gastroenterology, Graduate School of Medicine, Osaka City University, 1-4-3 Asahimachi, Abeno-ku, Osaka, 545-8585, Japan
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Murakami Y, Kawahara D, Imano N, Takahashi I, Takeuchi Y, Nishibuchi I, Kimura T, Nagata Y. A Machine Learning Model with Radiomics Based on PET Images to Predict Pathological Response by Neoadjuvant Chemoradiotherapy for Esophageal Cancer. Int J Radiat Oncol Biol Phys 2020. [DOI: 10.1016/j.ijrobp.2020.07.1884] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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39
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Imano N, Nishibuchi I, Kawabata E, Kinugasa Y, Sakai C, Ishida M, Akita T, Kimura T, Murakami Y, Nagata Y, Tashiro S. Association Between Acute Toxicities Of Chemoradiotherapy And Chromosomal Aberrations In Peripheral Blood Lymphocytes In Esophageal Cancer Patients. Int J Radiat Oncol Biol Phys 2020. [DOI: 10.1016/j.ijrobp.2020.07.1722] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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41
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Takeuchi Y, Kameoka T, Ochi M, Imano N, Takahashi I, Nishibuchi I, Kimura T, Murakami Y, Kawahara D, Miki K, Saito A, Nagata Y. Interstitial Brachytherapy For Locally Advanced Tongue Cancer: Analysis Of The Long-Term Treatment Results For Survival And Complications. Int J Radiat Oncol Biol Phys 2020. [DOI: 10.1016/j.ijrobp.2020.07.297] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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42
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Honda T, Yamasaki Y, Nakao H, Murakami Y, Ogura T, Kousaka Y, Akimitsu J. Topological metastability supported by thermal fluctuation upon formation of chiral soliton lattice in [Formula: see text]. Sci Rep 2020; 10:18596. [PMID: 33122696 PMCID: PMC7596096 DOI: 10.1038/s41598-020-74945-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2020] [Accepted: 10/07/2020] [Indexed: 11/29/2022] Open
Abstract
Topological magnetic structure possesses topological stability characteristics that make it robust against disturbances which are a big advantage for data processing or storage devices of spintronics; nonetheless, such characteristics have been rarely clarified. This paper focused on the formation of chiral soliton lattice (CSL), a one-dimensional topological magnetic structure, and provides a discussion of its topological stability and influence of thermal fluctuation. Herein, CSL responses against change of temperature and applied magnetic field were investigated via small-angle resonant soft X-ray scattering in chromium niobium sulfide ([Formula: see text]). CSL transformation relative to the applied magnetic field demonstrated a clear agreement with the theoretical prediction of the sine-Gordon model. Further, there were apparent differences in the process of chiral soliton creation and annihilation, discussed from the viewpoint of competing between thermal fluctuation and the topological metastability.
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Affiliation(s)
- T. Honda
- Institute of Materials Structure Science, High Energy Accelerator Research Organization (KEK), Tsukuba, 305-0801 Japan
| | - Y. Yamasaki
- Institute of Materials Structure Science, High Energy Accelerator Research Organization (KEK), Tsukuba, 305-0801 Japan
- Research and Services Division of Materials Data and Integrated System (MaDIS), National Institute for Materials Science (NIMS), Tsukuba, 305-0047 Japan
- Center for Emergent Matter Science (CEMS), RIKEN, Wako, 351-0198 Japan
- PRESTO, Japan Science and Technology Agency (JST), Saitama, Japan
| | - H. Nakao
- Institute of Materials Structure Science, High Energy Accelerator Research Organization (KEK), Tsukuba, 305-0801 Japan
| | - Y. Murakami
- Institute of Materials Structure Science, High Energy Accelerator Research Organization (KEK), Tsukuba, 305-0801 Japan
| | - T. Ogura
- Department of Physics and Mathematics, Aoyama-Gakuin University, Sagamihara, Kanagawa 252-5258 Japan
| | - Y. Kousaka
- Department of Physics and Electronics, Osaka Prefecture University, Osaka, 599-8531 Japan
| | - J. Akimitsu
- Research Institute for Interdisciplinary Science, Okayama University, Okayama, 700-8530 Japan
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43
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Sato A, Tanabe M, Tsuboi Y, Ito Y, Akiyama F, Takahashi S, Murakami Y, Seto Y. PIK3CA mutations and predicting the therapeutic effects of neoadjuvant chemotherapy in primary breast cancer. Eur J Cancer 2020. [DOI: 10.1016/s0959-8049(20)30720-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Nakagawa M, Tsukano K, Murakami Y, Otsuka M, Suzuki K, Suzuki H. Clinical application of 2.16% hypertonic saline solution to correct the blood sodium concentration in diarrheic calves with hyponatremia. J Vet Med Sci 2020; 82:1585-1588. [PMID: 32921658 PMCID: PMC7719873 DOI: 10.1292/jvms.20-0286] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
The aim of this study was to examine whether 2.16% hypertonic saline solution (HSS) is useful for the treatment of diarrheic calves with hyponatremia. Eleven
of 13 female Holstein calves exhibiting moderate diarrhea and hyponatremia received 1,250 ml of 2.16% HSS over 15 min regardless of body
weight. The remaining two calves that were unable to stand and had severe hyponatremia received 2,500 ml of 2.16% HSS intravenously over 30
min. As a result, hyponatremia in all diarrheic calves was significantly improved by the administration of 2.16% HSS from 122.2 ± 7.0 mEq/l at
pre to 134.8 ± 3.7 mEq/l at post, which was above the threshold of 132 mEq/l for hyponatremia. Therefore, 2.16% HSS may be
useful for hyponatremia in calves with diarrhea.
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Affiliation(s)
- Mitsuhide Nakagawa
- Hokushin Veterinary Medical Center, Nagano Prefectural Federation of Agricultural Mutual Aid Association, 1-4-28 Miyoshicho, Nagano, Nagano 383-0025, Japan
| | - Kenji Tsukano
- School of Veterinary Medicine, Rakuno Gakuen University, 582 Midorimachi, Bunnkyoudai, Ebetsu, Hokkaido 069-8501, Japan
| | - Yoshiki Murakami
- School of Veterinary Medicine, Rakuno Gakuen University, 582 Midorimachi, Bunnkyoudai, Ebetsu, Hokkaido 069-8501, Japan
| | - Marina Otsuka
- School of Veterinary Medicine, Rakuno Gakuen University, 582 Midorimachi, Bunnkyoudai, Ebetsu, Hokkaido 069-8501, Japan
| | - Kazuyuki Suzuki
- School of Veterinary Medicine, Rakuno Gakuen University, 582 Midorimachi, Bunnkyoudai, Ebetsu, Hokkaido 069-8501, Japan
| | - Hiroetsu Suzuki
- School of Veterinary Medicine, Nippon Veterinary and Life Science University, 1-7-1 Kyounancho, Musashino, Tokyo 180-0023, Japan
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Fukuda T, Tsukano K, Otsuka M, Murakami Y, Kitade Y, Nakatsuji H, Sera K, Suzuki K. Relationship between postnatal days, serum Cu concentration and plasma diamine oxidase activity in Japanese Black calves. J Vet Med Sci 2020; 82:1488-1491. [PMID: 32779634 PMCID: PMC7653307 DOI: 10.1292/jvms.20-0278] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
The aim of study was to investigate the relationships among serum diamine oxidase (DAO)
activity, postnatal days and the plasma copper (Cu) concentration, using calves with or
without diarrhea. In healthy calves, the serum DAO activity was significantly higher at 2
postnatal days than at ≥7 postnatal days, and no significant changes were observed after 7
postnatal days. In addition, no significant correlation was found between serum DAO
activity and plasma Cu concentration at all postnatal days in healthy calves. Although,
the serum DAO activity in 14 diarrheic calves (66.78 ± 14.37 IU/ml) was
lower than that in 19 healthy calves (170.33 ± 97.83
IU/m, P<0.01), plasma Cu concentrations in all calves
remained within the normal range.
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Affiliation(s)
- Tatsuya Fukuda
- School of Veterinary Medicine, Rakuno Gakuen University, 582 Midorimati, Bunnkyoudai, Ebetsu, Hokkaido 069-8501, Japan
| | - Kenji Tsukano
- School of Veterinary Medicine, Rakuno Gakuen University, 582 Midorimati, Bunnkyoudai, Ebetsu, Hokkaido 069-8501, Japan
| | - Marina Otsuka
- School of Veterinary Medicine, Rakuno Gakuen University, 582 Midorimati, Bunnkyoudai, Ebetsu, Hokkaido 069-8501, Japan
| | - Yoshiki Murakami
- School of Veterinary Medicine, Rakuno Gakuen University, 582 Midorimati, Bunnkyoudai, Ebetsu, Hokkaido 069-8501, Japan
| | - Yasuyuki Kitade
- School of Veterinary Medicine, Rakuno Gakuen University, 582 Midorimati, Bunnkyoudai, Ebetsu, Hokkaido 069-8501, Japan
| | - Hiroki Nakatsuji
- College of Agriculture, Food and Environment Sciences, Rakuno Gakuen University, 582 Midorimati, Bunnkyoudai, Ebetsu, Hokkaido 069-8501, Japan
| | - Kouichiro Sera
- Cyclotron Research Center, Iwate Medical University, Tomegamori, Takizawa, Iwate 020-0173, Japan
| | - Kazuyuki Suzuki
- School of Veterinary Medicine, Rakuno Gakuen University, 582 Midorimati, Bunnkyoudai, Ebetsu, Hokkaido 069-8501, Japan
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Yamada S, Fujii T, Yamamoto T, Takami H, Yoshioka I, Yamaki S, Sonohara F, Shibuya K, Motoi F, Hirano S, Murakami Y, Inoue H, Hayashi M, Murotani K, Kitayama J, Ishikawa H, Kodera Y, Sekimoto M, Satoi S. Phase I/II study of adding intraperitoneal paclitaxel in patients with pancreatic cancer and peritoneal metastasis. Br J Surg 2020; 107:1811-1817. [PMID: 32638367 PMCID: PMC7689756 DOI: 10.1002/bjs.11792] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [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: 02/23/2020] [Revised: 04/27/2020] [Accepted: 05/19/2020] [Indexed: 12/12/2022]
Abstract
BACKGROUND Intraperitoneal chemotherapy using paclitaxel is considered an experimental approach for treating peritoneal carcinomatosis. This study aimed to determine the recommended dose, and to evaluate the clinical efficacy and safety, of the combination of intravenous gemcitabine, intravenous nab-paclitaxel and intraperitoneal paclitaxel in patients with pancreatic cancer and peritoneal metastasis. METHODS The frequencies of dose-limiting toxicities were evaluated, and the recommended dose was determined in phase I. The primary endpoint of the phase II analysis was overall survival rate at 1 year. Secondary endpoints were antitumour effects, symptom-relieving effects, safety and overall survival. RESULTS The recommended doses of intravenous gemcitabine, intravenous nab-paclitaxel and intraperitoneal paclitaxel were 800, 75 and 20 mg/m2 respectively. Among 46 patients enrolled in phase II, the median time to treatment failure was 6·0 (range 0-22·6) months. The response and disease control rates were 21 of 43 and 41 of 43 respectively. Ascites disappeared in 12 of 30 patients, and cytology became negative in 18 of 46. The median survival time was 14·5 months, and the 1-year overall survival rate was 61 per cent. Conversion surgery was performed in eight of 46 patients, and those who underwent resection survived significantly longer than those who were not treated surgically (median survival not reached versus 12·4 months). Grade 3-4 haematological toxicities developed in 35 of 46 patients, whereas non-haematological adverse events occurred in seven patients. CONCLUSION Adding intraperitoneal paclitaxel had clinical efficacy with acceptable tolerability.
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Affiliation(s)
- S Yamada
- Gastroenterological Surgery, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - T Fujii
- Department of Surgery and Science Faculty of Medicine, Academic Assembly, University of Toyama, Toyama, Japan
| | - T Yamamoto
- Department of Surgery, Kansai Medical University, Hirakata, Japan
| | - H Takami
- Gastroenterological Surgery, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - I Yoshioka
- Department of Surgery and Science Faculty of Medicine, Academic Assembly, University of Toyama, Toyama, Japan
| | - S Yamaki
- Department of Surgery, Kansai Medical University, Hirakata, Japan
| | - F Sonohara
- Gastroenterological Surgery, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - K Shibuya
- Department of Surgery and Science Faculty of Medicine, Academic Assembly, University of Toyama, Toyama, Japan
| | - F Motoi
- Department of Surgery, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - S Hirano
- Department of Surgery, Institute of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Y Murakami
- Department of Gastroenterological Surgery II, Faculty of Medicine, Hokkaido University, Sapporo, Japan
| | - H Inoue
- Department of Hepatobiliary-pancreatic and Breast Surgery, Ehime University Graduate School of Medicine, Ehime, Fukuoka, Japan
| | - M Hayashi
- Gastroenterological Surgery, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - K Murotani
- Biostatistics Centre, Graduate School of Medicine, Kurume University, Fukuoka, Japan
| | - J Kitayama
- Department of Gastrointestinal Surgery, Jichi Medical University, Tochigi, Japan
| | - H Ishikawa
- Department of Molecular-Targeting Cancer Prevention, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Y Kodera
- Gastroenterological Surgery, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - M Sekimoto
- Department of Surgery, Kansai Medical University, Hirakata, Japan
| | - S Satoi
- Department of Surgery, Kansai Medical University, Hirakata, Japan
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Hayakawa M, Umeyama H, Iwadate M, Taguchi YH, Yano Y, Honda T, Itami-Matsumoto S, Kozuka R, Enomoto M, Tamori A, Kawada N, Murakami Y. Author Correction: Development of a novel anti-hepatitis B virus agent via Sp1. Sci Rep 2020; 10:7015. [PMID: 32313085 PMCID: PMC7171149 DOI: 10.1038/s41598-020-63866-z] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Affiliation(s)
- Michiyo Hayakawa
- Department of Hepatology, Graduate School of Medicine, Osaka City University, Osaka, 545-8585, Japan
| | - Hideaki Umeyama
- Department of Biological Sciences, Chuo University, Tokyo, 112-8551, Japan
| | - Mitsuo Iwadate
- Department of Biological Sciences, Chuo University, Tokyo, 112-8551, Japan
| | - Y-H Taguchi
- Department of Physics, Chuo University, Tokyo, 112-8551, Japan
| | - Yoshihiko Yano
- Division of Gastroenterology, Department of Internal of Medicine, Kobe University Graduate School of Medicine, Kobe, 650-0017, Japan
| | - Takashi Honda
- Division of Gastroenterology, Department of Internal Medicine, Nagoya University Graduate School of Medicine, Nagoya, 466-8550, Japan
| | - Saori Itami-Matsumoto
- Department of Hepatology, Graduate School of Medicine, Osaka City University, Osaka, 545-8585, Japan
| | - Ritsuzo Kozuka
- Department of Hepatology, Graduate School of Medicine, Osaka City University, Osaka, 545-8585, Japan
| | - Masaru Enomoto
- Department of Hepatology, Graduate School of Medicine, Osaka City University, Osaka, 545-8585, Japan
| | - Akihiro Tamori
- Department of Hepatology, Graduate School of Medicine, Osaka City University, Osaka, 545-8585, Japan
| | - Norifumi Kawada
- Department of Hepatology, Graduate School of Medicine, Osaka City University, Osaka, 545-8585, Japan
| | - Yoshiki Murakami
- Department of Hepatology, Graduate School of Medicine, Osaka City University, Osaka, 545-8585, Japan. .,Department of Molecular Pathology, Tokyo Medical University, 6-1-1, Shinjuku, Shinjuku-Ku, Tokyo, 160-8402, Japan.
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Ito T, Funaki T, Iwanari H, Tanaka G, Nagase T, Hamakubo T, Murakami Y. B22 Development of a Novel Serum Marker for Detecting Small-Cell Lung Cancer by Targeting a Cell Adhesion Molecule 1 (CADM1). J Thorac Oncol 2020. [DOI: 10.1016/j.jtho.2019.12.088] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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49
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Hayakawa M, Umeyama H, Iwadate M, Taguchi YH, Yano Y, Honda T, Itami-Matsumoto S, Kozuka R, Enomoto M, Tamori A, Kawada N, Murakami Y. Development of a novel anti-hepatitis B virus agent via Sp1. Sci Rep 2020; 10:47. [PMID: 31913341 PMCID: PMC6949255 DOI: 10.1038/s41598-019-56842-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2019] [Accepted: 12/17/2019] [Indexed: 01/05/2023] Open
Abstract
Nucleos(t)ide analog (NA) therapy has proven effective in treating chronic hepatitis B. However, NAs frequently result in viral relapse after the cessation of therapy. This is because NAs cannot fully eliminate the viral episomal covalently closed circular DNA (cccDNA) in the nucleus. In this study, we identified small molecular compounds that control host factors related to viral replication using in silico screening with simulated annealing based on bioinformatics for protein-ligand flexible docking. Twelve chemical compound candidates for alpha-glucosidase (AG) inhibitors were identified from a library of chemical compounds and used to treat fresh human hepatocytes infected with HBV. They were then monitored for their anti-viral effects. HBV replication was inhibited by one candidate (1-[3-(4-tert-butylcyclohexyl)oxy-2-hydroxypropyl]-2,2,6,6-tetramethylpiperidin-4-ol) in a dose-dependent manner. This compound significantly reduced ccc DNA production, compared to Entecavir (p < 0.05), and had a lower anti-AG effect. Gene expression analysis and structural analysis of this compound showed that its inhibitive effect on HBV was via interaction with Sp1. The nuclear transcription factor Sp1 acts on multiple regions of HBV to suppress HBV replication. Identifying candidates that control nuclear transcription factors facilitate the development of novel therapies. Drugs with a mechanism different from NA are promising for the elimination of HBV.
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Affiliation(s)
- Michiyo Hayakawa
- Department of Hepatology, Graduate School of Medicine, Osaka City University, Osaka, 545-8585, Japan
| | - Hideaki Umeyama
- Department of Biological Sciences, Chuo University, Tokyo, 112-8551, Japan
| | - Mitsuo Iwadate
- Department of Biological Sciences, Chuo University, Tokyo, 112-8551, Japan
| | - Y-H Taguchi
- Department of Physics, Chuo University, Tokyo, 112-8551, Japan
| | - Yoshihiko Yano
- Division of Gastroenterology, Department of Internal of Medicine, Kobe University Graduate School of Medicine, Kobe, 650-0017, Japan
| | - Takashi Honda
- Division of Gastroenterology, Department of Internal Medicine, Nagoya University Graduate School of Medicine, Nagoya, 466-8550, Japan
| | - Saori Itami-Matsumoto
- Department of Hepatology, Graduate School of Medicine, Osaka City University, Osaka, 545-8585, Japan
| | - Ritsuzo Kozuka
- Department of Hepatology, Graduate School of Medicine, Osaka City University, Osaka, 545-8585, Japan
| | - Masaru Enomoto
- Department of Hepatology, Graduate School of Medicine, Osaka City University, Osaka, 545-8585, Japan
| | - Akihiro Tamori
- Department of Hepatology, Graduate School of Medicine, Osaka City University, Osaka, 545-8585, Japan
| | - Norifumi Kawada
- Department of Hepatology, Graduate School of Medicine, Osaka City University, Osaka, 545-8585, Japan
| | - Yoshiki Murakami
- Department of Hepatology, Graduate School of Medicine, Osaka City University, Osaka, 545-8585, Japan.
- Department of Molecular Pathology, Tokyo Medical University, 6-1-1, Shinjuku, Shinjuku-Ku, Tokyo, 160-8402, Japan.
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Ota T, Murakami Y, Kozuka Y, Ohshiro C, Kihara N, Gunji Y, Hattori S, Noguchi K. P224 Valvuloplasty treatment and three-dimensional analysis for isolated cleft of the anterior mitral valve leaflet: a case report. Eur Heart J Cardiovasc Imaging 2020. [DOI: 10.1093/ehjci/jez319.090] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Introduction: Isolated cleft of the anterior mitral valve leaflet is a very rare congenital disease and a cause of mitral regurgitation
not associated with atrioventricular septal defect. In this case, we report our experience in valvuloplasty treatment for mitral regurgitation with this rare aetiology.
Case description
23-year-old Russian women. Although cardiac murmur was pointed out in her childhood and she was diagnosed as mitral regurgitation, she refused treatment. After getting married with a Japanese man and moving to Japan, her symptoms had worsened and she visited our hospital for treatment. Preoperative transthoracic echocardiography (TTE) had indicated the regurgitation from the central part of the mitral valve. Preoperative transoesophageal echocardiography (TOE) had pointed out the isolated cleft of the anterior mitral valve.
Surgical mitral valvuloplasty was scheduled, and the TOE after anaesthetic induction showed the isolated cleft of the anterior mitral valve the same as in the preoperative period and pointed out the posterior leaflet billowing. The operative finding was also similar to TOE: the largely bisected central anterior mitral valve and billowing, P2 billowing, shortening of P1 and P3, P2-3 cleft. There were no chords at the anterior cleft. The valvuloplasty was performed including five-time pump runs in total: 1) Continuous suture for the anterior cleft and ring annuloplasty were performed, and the regurgitation was seemed to be almost controlled at the water-leak test and the ink test; 2) Artificial chordae and leaflet plications were added to residual regurgitation from the posterior region; 3)The residual regurgitation was controlled to Mild but it became a lateral jet toward the ring; 4)Mild remnant flow was pointed out: the regurgitation seemed to be from the posterior cleft, where immediately below the ring suture; 5) Pericardium patch was added and the remnant flow was almost eliminated. The pump was weaned and the operation was finished without any problems.
Discussion
The cause of difficulty in this valvuloplasty was thought to be caused by the difficulty in evaluating the mitral valve morphology. It was evident that the anterior leaflet of the mitral valve was largely bisected. However, it was difficult to evaluate the coaptation line and area due to the absence of chordal cords in the anterior cleft and the billowing or shortening of the posterior leaflet. Although preoperative three-dimensional analysis helped evaluating the isolated cleft and the regurgitation was almost controlled in the evaluation in the operation field, nevertheless, a residual regurgitation occurred and indicated in the TOE after re-beating.
Conclusion
It is important and necessary to use fine evaluation of coaptation is needed in valvuloplasty for isolated cleft of the anterior mitral valve leaflet; not only apply three-dimensional analysis but also apply two-dimensional echocardiogram.
Abstract P224 Figure.
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Affiliation(s)
- T Ota
- Shonan Kamakura General Hospital, Anesthesiology, Kamakura, Japan
| | - Y Murakami
- Shonan Kamakura General Hospital, Cardiac Ultrasound Laboratory, Kamakura, Japan
| | - Y Kozuka
- Shonan Kamakura General Hospital, Cardiac Ultrasound Laboratory, Kamakura, Japan
| | - C Ohshiro
- Shonan Kamakura General Hospital, Cardiac Ultrasound Laboratory, Kamakura, Japan
| | - N Kihara
- Shonan Kamakura General Hospital, Cardiac Ultrasound Laboratory, Kamakura, Japan
| | - Y Gunji
- Shonan Kamakura General Hospital , Cardiovascular Surgery, Kamakura, Japan
| | - S Hattori
- Shonan Kamakura General Hospital , Cardiovascular Surgery, Kamakura, Japan
| | - K Noguchi
- Shonan Kamakura General Hospital , Cardiovascular Surgery, Kamakura, Japan
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