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Kawazoe A, Yamamoto N, Sugimoto N, Kawakami H, Oshima T, Yamaguchi K, Hino K, Hirao M, Kurokawa Y, Kawakami T, Tsuda M, Hara H, Kaname S, Matsuoka D, Otake Y, Yasuda K, Takase T, Takashima S, Semba T, Muro K. Phase II Study of the Liposomal Formulation of Eribulin (E7389-LF) in Combination with Nivolumab: Results from the Gastric Cancer Cohort. Clin Cancer Res 2024; 30:1264-1272. [PMID: 38295160 PMCID: PMC10982638 DOI: 10.1158/1078-0432.ccr-23-1768] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2023] [Revised: 10/17/2023] [Accepted: 01/29/2024] [Indexed: 02/02/2024]
Abstract
PURPOSE E7389-LF is a liposomal formulation of the microtubule dynamics inhibitor eribulin and has shown preliminary efficacy in the treatment of gastric cancer. Study 120, a phase Ib/II open-label study, assessed efficacy and safety of E7389-LF in combination with nivolumab, a programmed cell death (PD)-1 inhibitor. This report focuses on the gastric cancer cohort within the expansion phase. PATIENTS AND METHODS Eligible patients had unresectable, measurable gastric cancer, progression following a platinum drug plus fluoropyrimidine (1L), and a taxane-containing regimen (2L). The primary objective of the expansion phase was objective response rate, secondary objectives included safety and PFS, and exploratory objectives included overall survival and biomarker evaluation. Patients received E7389-LF 2.1 mg/m2 in combination with nivolumab 360 mg every 3 weeks, both as intravenous infusions. Tumor responses were assessed every 6 weeks by the investigators per RECIST v1.1. Plasma and tumor biomarkers were assessed. RESULTS In the 31 patients who received E7389-LF in combination with nivolumab, the objective response rate was 25.8% [confidence interval (CI), 11.9-44.6]. The median progression-free survival was 2.69 months (95% CI, 1.91-2.99) and median overall survival was 7.85 months (95% CI, 4.47-not estimable). The most common treatment-related TEAE of any grade were neutropenia (77.4%), leukopenia (74.2%), and decreased appetite (51.6%). E7389-LF in combination with nivolumab significantly increased CD8-positive cells at C2D1 (P = 0.039), and six of seven vascular markers and four IFNγ-related markers showed increases from C1D1. CONCLUSIONS Promising antitumor activity was observed with E7389-LF in combination with nivolumab in patients with gastric cancer, and no new safety signals were observed, compared with either monotherapy.
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Affiliation(s)
| | | | | | | | | | - Kensei Yamaguchi
- The Cancer Institute Hospital of Japanese Foundation for Cancer, Tokyo, Japan
| | | | - Motohiro Hirao
- National Hospital Organization Osaka National Hospital, Osaka, Japan
| | | | | | | | | | | | | | | | | | | | | | | | - Kei Muro
- Aichi Cancer Center Hospital, Nagoya, Japan
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Matsuda S, Ueda T, Nakashima F, Ninomiya Y, Yasuda K, Sasaki S, Hamamoto Y, Iwata T, Ouhara K, Mihara N, Kakimoto N, Mizuno N. Predictive factors of periodontal regeneration outcomes using rhFGF-2: A case-control study. J Periodontal Res 2024. [PMID: 38527968 DOI: 10.1111/jre.13259] [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: 09/25/2023] [Revised: 03/10/2024] [Accepted: 03/11/2024] [Indexed: 03/27/2024]
Abstract
OBJECTIVE This study aimed to investigate the factors influencing the clinical outcomes of regenerative therapy using recombinant human fibroblast growth factor-2 (rhFGF-2). BACKGROUND rhFGF-2 promotes periodontal regeneration, and identifying the factors influencing this regeneration is important for optimizing the effectiveness of rhFGF-2. METHODS AND MATERIALS This study used a hospital information-integrated database to identify patients who underwent periodontal regenerative therapy with rhFGF-2. Factors included age, smoking status, diabetes mellitus (DM), periodontal inflamed surface area (PISA) at the initial visit, whether the most posterior tooth was involved or not, and preoperative radiological bone defect angle. Periodontal regenerative therapy outcomes were defined as good if radiographic bone fill ≥35% or periodontal pocket closure at 9-15 months after surgery. Bone fill rate (%) and periodontal pocket depth (mm) were also used as outcome measures. Factors were evaluated by simple regression analysis, and then the association between factors and the outcomes was determined by multivariate analysis. RESULTS PISA and age at the first visit did not significantly influence the success or failure of bone fill rate byrhFGF-2. However, DM, radiographic bone defect angle, and the most posterior tooth significantly influenced the regenerative effect (success/failure in bone fill) of rhFGF-2. The most posterior tooth was significantly associated with bone fill rate by rhFGF-2. Examination of the association between pocket closure and factors shows that the most posterior tooth significantly influenced. The most posterior tooth and preoperative PPD were significantly associated with pocket reduction depth. For the most posterior tooth, a significantly higher bone regeneration rate (p < .05) was observed with a combination of autologous bone graft and rhFGF-2 than with rhFGF-2 alone, and the effect was significant in multivariate analysis. CONCLUSIONS The radiographic bone defect angle, the involvement of most posterior teeth, and the presence of DM influenced the effectiveness of rhFGF-2 in periodontal regeneration. However, PISA values and age at the initial visit had no significant effect.
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Affiliation(s)
- Shinji Matsuda
- Department of Periodontal Medicine, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Tomoya Ueda
- Department of Periodontal Medicine, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Fuminori Nakashima
- Department of Periodontal Medicine, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Yurika Ninomiya
- Department of Periodontal Medicine, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Keisuke Yasuda
- Department of Periodontal Medicine, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Shinya Sasaki
- Department of Periodontal Medicine, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Yuta Hamamoto
- Department of Periodontal Medicine, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Tomoyuki Iwata
- Department of Periodontal Medicine, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Kazuhisa Ouhara
- Department of Periodontal Medicine, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Naoki Mihara
- Hiroshima University Hospital, Medical Informatics & Systems Management, Hiroshima, Japan
| | - Naoya Kakimoto
- Department of Oral and Maxillofacial Radiology, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Noriyoshi Mizuno
- Department of Periodontal Medicine, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
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Yasuda K, Shimodan S, Maehara N, Hirota A, Iijima R, Nishijima A, Mori H, Toyama R, Ito A, Yoshikawa Y, Arai S, Miyazaki T. AIM/CD5L ameliorates autoimmune arthritis by promoting removal of inflammatory DAMPs at the lesions. J Autoimmun 2024; 142:103149. [PMID: 38006711 DOI: 10.1016/j.jaut.2023.103149] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2023] [Revised: 10/31/2023] [Accepted: 11/13/2023] [Indexed: 11/27/2023]
Abstract
The hallmark of autoimmune arthritis is the preceding autoantibody production and the following synovial inflammation with hyperplasia and tissue destruction of the joints. The joint inflammation is mediated not only by effector lymphocytes and auto-antibodies but also chronic activation of innate immunity, particularly promoted by the danger-associated molecular patterns (DAMPs). Here we show that apoptosis inhibitor of macrophage (AIM, also called CD5L) protein regulates arthritis by promoting removal of lesional DAMPs both physiologically and therapeutically. When the autoimmune arthritis was promoted by injecting a cocktail of anti-collagen antibodies without type-II collagen immunization, AIM-deficient (AIM-/-) mice exhibited more exacerbated and sustained swelling at multiple joints with greater synovial hyperplasia and bone erosion than wild-type mice. Administration of recombinant AIM (rAIM) reduced S100A8/9, a major DAMP known to be involved in arthritis progression, and decreased various inflammatory cytokines at the lesions in antibody-injected AIM-/- mice, leading to marked prevention of arthritis symptoms. In human rheumatoid arthritis (RA) patients, AIM was more activated via dissociating from IgM-pentamer in response to DAMPs-mediated inflammation both in serum and synovial fluid than in healthy individuals or non-autoimmune osteoarthritis patients, suggesting a disease-regulatory potency of AIM also in human RA patients. Thus, our study implied a therapeutic availability of rAIM to prevent arthritis symptoms targeting DAMPs.
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Affiliation(s)
- Keisuke Yasuda
- The Institute for AIM Medicine, Tokyo, 162-8666, Japan; Laboratory of Molecular Biomedicine for Pathogenesis, Center for Disease Biology and Integrative Medicine, Faculty of Medicine, The University of Tokyo, Tokyo, 113-0033, Japan
| | - Shieri Shimodan
- Laboratory of Molecular Biomedicine for Pathogenesis, Center for Disease Biology and Integrative Medicine, Faculty of Medicine, The University of Tokyo, Tokyo, 113-0033, Japan
| | | | - Aika Hirota
- The Institute for AIM Medicine, Tokyo, 162-8666, Japan
| | - Ruka Iijima
- The Institute for AIM Medicine, Tokyo, 162-8666, Japan
| | | | - Haruka Mori
- The Institute for AIM Medicine, Tokyo, 162-8666, Japan
| | - Ran Toyama
- The Institute for AIM Medicine, Tokyo, 162-8666, Japan
| | - Atsumi Ito
- The Institute for AIM Medicine, Tokyo, 162-8666, Japan
| | | | - Satoko Arai
- The Institute for AIM Medicine, Tokyo, 162-8666, Japan; Laboratory of Molecular Biomedicine for Pathogenesis, Center for Disease Biology and Integrative Medicine, Faculty of Medicine, The University of Tokyo, Tokyo, 113-0033, Japan.
| | - Toru Miyazaki
- The Institute for AIM Medicine, Tokyo, 162-8666, Japan; Laboratoire d'ImmunoRhumatologie Moléculaire, Plateforme GENOMAX, Institut National de la Santé et de la Recherche Médicale UMR_S 1109, Faculté de Médecine, Fédération Hospitalo-Universitaire OMICARE, Fédération de Médecine Translationnelle de Strasbourg, Laboratory of Excellence TRANSPLANTEX, Université de Strasbourg, Strasbourg, France; LEAP, Japan Agency for Medical Research and Development, Tokyo, 113-0033, Japan.
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Katoh N, Nakazato K, Uchinami Y, Kanehira T, Takahashi S, Koizumi F, Taguchi H, Nishioka K, Yasuda K, Tamura M, Takao S, Miyamoto N, Matsuura T, Kobashi K, Aoyama H. Evaluation of the Possibility of Dose Realignment Adaptation by Shifting the Isocenter in Proton Beam Therapy for Pancreatic Cancer. Int J Radiat Oncol Biol Phys 2023; 117:e307. [PMID: 37785114 DOI: 10.1016/j.ijrobp.2023.06.2330] [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) In pancreatic cancer, a tumor is surrounded by the gastrointestinal (GI) tract, which is subject to changes in location, shape, and contents. Due to these inter-fractional changes, proton beam therapy (PBT) for pancreatic cancer may result in unintentionally high doses to the GI tract. Daily adaptive re-planning can solve this problem, but is not yet established with PBT due to its resource intensive characteristics. This study aims to evaluate the GI tract dose using weekly computed tomography (CTw) and the possibility of dose realignment adaptation by shifting the isocenter (IC) of the PBT plan, which does not require re-planning. MATERIALS/METHODS We retrospectively analyzed 6 consecutive patients with unresectable pancreatic cancer treated with real-time-image gated PBT using a fiducial marker. The planning CT was scanned at the natural expiration of respiration and a PBT plan of 60 GyE in 25 fractions (baseline plan, PLANbase) was created. The CTw images were acquired the day before start of PBT and once a week during the PBT course thereafter. The PLANbase was rigidly transferred to the CTw based on the relationship between the three-dimensional coordinates of the fiducial marker and those of the IC in the PLANbase. The PLANeval was created by recalculating the PLANbase on the CTw. We evaluated the doses to the stomach, duodenum, and intestines in the PLANeval according to the following criteria: Dmax of the stomach < 60 GyE, duodenum and intestines < 55 GyE, and D1cc of the stomach < 55 GyE, duodenum and intestines < 54 GyE. In addition, we investigated the GI tract dose realignment adaptation for the PLANeval with its IC shifted 2mm, 4mm, and 6mm in each of 6 directions (right, left, ventral, dorsal, cranial, and caudal), respectively. RESULTS A total of 35 PLANeval were created for the CTw. In the PLANbase of the 6 patients, the average of Dmax and D1cc of the stomach, duodenum and intestines were 50.7 GyE (range, 46.7-53.6) and 50.0 GyE (45.0-53.2), 49.2 GyE (44.3-51.7) and 48.8 GyE (43.7-51.5), and 49.2 GyE (44.8-52.0) and 48.9 GyE (44.6-51.8), respectively. In the PLANeval, the average of Dmax and D1cc of the stomach, duodenum, and intestines were 53.3GyE (43.8-61.4) and 52.8 GyE (43.2-61.1), 51.0 GyE (36.1-60.0) and 50.3 GyE (35.4-59.8), and 52.5 GyE (36.6-61.0) and 51.9 (34.4-60.9) GyE, respectively. Twenty-two of the 35 PLANeval (63 %) did not meet at least one of the GI tract dose criteria. In 11 of 22 PLANeval with higher doses to the GI tract, the IC shift resulted in GI dose reductions and all dose criteria were met. The minimum amount of the IC shift required to meet the criteria was 2 mm for 8 plans and 4 mm for 3 plans. The remaining 11 PLANeval did not meet the criteria using dose realignment adaptation by shifting the isocenter. CONCLUSION Adaptive replanning is necessary for PBT for pancreatic cancers due to excessive GI tract doses in more than 60% of the plans. Dose realignment adaptation by shifting the IC, which does not require re-planning, may be an option in adaptive treatment strategies.
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Affiliation(s)
- N Katoh
- Department of Radiation Oncology, Hokkaido University Faculty of Medicine and Graduate School of Medicine, Sapporo, Japan
| | - K Nakazato
- Department of Medical Physics, Hokkaido University Hospital, Sapporo, Japan
| | - Y Uchinami
- Department of Radiation Oncology, Hokkaido University Faculty of Medicine and Graduate School of Medicine, Sapporo, Japan
| | - T Kanehira
- Department of Medical Physics, Hokkaido University Hospital, Sapporo, Japan
| | - S Takahashi
- Department of Radiation Oncology, Hokkaido University Faculty of Medicine and Graduate School of Medicine, Sapporo, Japan
| | - F Koizumi
- Department of Radiation Oncology, Hokkaido University Faculty of Medicine and Graduate School of Medicine, Sapporo, Japan
| | - H Taguchi
- Department of Radiation Oncology, Hokkaido University Hospital, Sapporo, Japan
| | - K Nishioka
- Global Center for Biomedical Science and Engineering, Hokkaido University Faculty of Medicine, Sapporo, Japan
| | - K Yasuda
- Department of Radiation Oncology, Hokkaido University Hospital, Sapporo, Japan
| | - M Tamura
- Department of Medical Physics, Hokkaido University Hospital, Sapporo, Japan
| | - S Takao
- Faculty of Engineering, Hokkaido University, Sapporo, Japan
| | - N Miyamoto
- Faculty of Engineering, Hokkaido University, Sapporo, Japan
| | - T Matsuura
- Faculty of Engineering, Hokkaido University, Sapporo, Japan
| | - K Kobashi
- Global Center for Biomedical Science and Engineering, Hokkaido University Faculty of Medicine, Sapporo, Japan
| | - H Aoyama
- Department of Radiation Oncology, Hokkaido University Faculty of Medicine and Graduate School of Medicine, Sapporo, Japan
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5
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Koizumi F, Katoh N, Kanehira T, Kawamoto Y, Nakamura T, Kakisaka T, Uchinami Y, Taguchi H, Fujita Y, Takahashi S, Higaki H, Nishioka K, Yasuda K, Kinoshita R, Suzuki R, Miyamoto N, Yokota I, Kobashi K, Aoyama H. A Risk Prediction Model for Severe Radiation Induced Lymphopenia in Patients with Pancreatic Cancer Treated with Concurrent Chemoradiotherapy. Int J Radiat Oncol Biol Phys 2023; 117:e309. [PMID: 37785118 DOI: 10.1016/j.ijrobp.2023.06.2334] [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) In pancreatic cancer, radiation induced lymphopenia (RIL) is associated with a poor prognosis. However, normal tissue complication probability (NTCP) models predicting RIL in pancreatic cancer treated with concurrent chemoradiotherapy (CCRT) have yet to be developed. This study aims to develop a least absolute shrinkage and selection operator (LASSO)-based multivariate NTCP model to predict severe RIL in patients with pancreatic cancer during CCRT and to validate the model internally. MATERIALS/METHODS We retrospectively reviewed patients with localized pancreatic cancer who underwent CCRT using three-dimensional conformal radiation therapy from 2013 to 2021. The exclusion criteria were patients with distant metastasis; patients who did not complete RT due to tumor progression; patients who did not have absolute lymphocyte count (ALC) data available before or during RT. An ALC of < 0.5 K/μL during CCRT was defined as severe RIL. A NTCP model of severe RIL was developed by LASSO-based multivariate analysis. We used age, sex, Karnofsky performance status, maximum tumor size, carbohydrate antigen 19-9 level before RT, ALC before RT, volume of planning target volume (PTV), and dosimetric parameters for surrounding organs (including spleen, vertebrae, liver, bilateral kidneys, gastrointestinal tracts) as variables for LASSO. In addition, internal validation was performed by the bootstrap method. The predictive performance of the model was evaluated by the area under the curve (AUC) of the receiver operating characteristic curve and scaled Brier score. RESULTS Of the 131 patients included in the study, the median age was 68 years (range, 42-84), and 55% were male. The median ALC before RT was 1.37 K/µL (0.52-3.50). The median PTV volume was 315.4 ml (86.3-1079.3). The median dose of radiotherapy was 50.4 Gy (16.2-50.4), with 1.8 Gy per fraction. Combination chemotherapy was S-1 in 99 cases (75.6%) and gemcitabine in 32 cases (24.4%). Induction chemotherapy before CCRT was performed in 39 patients (29.8%). Severe RIL was observed in 84 (63.6%) patients. The LASSO showed that low baseline ALC (p = 0.0002), large PTV volume (p < 0.0001), and a large kidney V5 defined as the percentage of bilateral kidneys receiving 5 Gy or more (p = 0.0338) were selected as parameters of the prediction model for severe RIL (AUC = 0.917) and scaled Brier score was 0.511. As a result of internal validation by the bootstrap method, the average AUC was 0.918 (95% confidence interval, 0.849-0.954). CONCLUSION Severe RIL occurred frequently during CCRT for pancreatic cancer, and a NTCP model for severe RIL developed and validated internally in this study showed good predictive performance. External validation is needed before this NTCP model can be used as a benchmark for treatment planning to reduce the risk of severe RIL and for considering future treatment approaches.
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Affiliation(s)
- F Koizumi
- Department of Radiation Oncology, Hokkaido University Faculty of Medicine and Graduate School of Medicine, Sapporo, Japan
| | - N Katoh
- Department of Radiation Oncology, Hokkaido University Faculty of Medicine and Graduate School of Medicine, Sapporo, Japan
| | - T Kanehira
- Department of Medical Physics, Hokkaido University Hospital, Sapporo, Japan
| | - Y Kawamoto
- Division of Cancer Center, Hokkaido University Hospital, Sapporo, Japan
| | - T Nakamura
- Department of Gastroenterological Surgery Ⅱ, Hokkaido University Faculty of Medicine, Sapporo, Japan
| | - T Kakisaka
- Department of Gastroenterological Surgery Ⅰ, Hokkaido University Hospital, Sapporo, Japan
| | - Y Uchinami
- Department of Radiation Oncology, Hokkaido University Faculty of Medicine and Graduate School of Medicine, Sapporo, Japan
| | - H Taguchi
- Department of Radiation Oncology, Hokkaido University Hospital, Sapporo, Japan
| | - Y Fujita
- Department of Radiation Oncology, Hokkaido University Faculty of Medicine and Graduate School of Medicine, Sapporo, Japan
| | - S Takahashi
- Department of Radiation Oncology, Hokkaido University Faculty of Medicine and Graduate School of Medicine, Sapporo, Japan
| | - H Higaki
- Department of Radiation Oncology, Hokkaido University Faculty of Medicine and Graduate School of Medicine, Sapporo, Japan
| | - K Nishioka
- Global Center for Biomedical Science and Engineering, Hokkaido University Faculty of Medicine, Sapporo, Japan
| | - K Yasuda
- Department of Radiation Oncology, Hokkaido University Hospital, Sapporo, Japan
| | - R Kinoshita
- Department of Radiation Oncology, Hokkaido University Hospital, Sapporo, Japan
| | - R Suzuki
- Department of Medical Physics, Hokkaido University Hospital, Sapporo, Japan
| | - N Miyamoto
- Department of Medical Physics, Hokkaido University Hospital, Sapporo, Japan
| | - I Yokota
- Department of Biostatistics, Hokkaido University Faculty of Medicine, Sapporo, Japan
| | - K Kobashi
- Global Center for Biomedical Science and Engineering, Hokkaido University Faculty of Medicine, Sapporo, Japan
| | - H Aoyama
- Department of Radiation Oncology, Hokkaido University Faculty of Medicine and Graduate School of Medicine, Sapporo, Japan
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Ida H, Shimizu T, Nishino M, Nakamura Y, Yazaki S, Katsuya Y, Sato J, Koyama T, Iwasa S, Sudo K, Kondo S, Yonemori K, Shitara K, Shiono S, Matsuoka D, Yasuda K, Otake Y, Suzuki T, Takase T, Takashima S, Yamaguchi K, Semba T, Yamamoto N. Phase Ib/II Study of a Liposomal Formulation of Eribulin (E7389-LF) plus Nivolumab in Patients with Advanced Solid Tumors: Results from Phase Ib. Cancer Res Commun 2023; 3:1189-1199. [PMID: 37435605 PMCID: PMC10332326 DOI: 10.1158/2767-9764.crc-22-0401] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/13/2022] [Revised: 02/09/2023] [Accepted: 06/07/2023] [Indexed: 07/13/2023]
Abstract
Purpose To determine a recommended dose of liposomal eribulin (E7389-LF) in combination with nivolumab in patients with advanced solid tumors, and to evaluate the safety, efficacy, pharmacokinetics, and biomarker impact of this regimen. Experimental Design Japanese patients with advanced, nonresectable, or recurrent solid tumors and no existing alternative standard/effective therapy (except nivolumab monotherapy) were assigned to either E7389-LF 1.7 mg/m2 plus nivolumab 360 mg every 3 weeks, E7389-LF 2.1 mg/m2 plus nivolumab 360 mg every 3 weeks, E7389-LF 1.1 mg/m2 plus nivolumab 240 mg every 2 weeks, or E7389-LF 1.4 mg/m2 plus nivolumab 240 mg every 2 weeks. Primary objectives were to evaluate the safety/tolerability of each dose cohort and to determine the recommended phase II dose (RP2D). Secondary/exploratory objectives, including safety [dose-limiting toxicities (DLT) and adverse events (AE)], pharmacokinetics, efficacy [including objective response rate (ORR)], and biomarker results were used in determining the RP2D. Results Twenty-five patients were enrolled to treatment [E7389-LF 1.7 mg/mg2 every 3 weeks (n = 6), E7389-LF 2.1 mg/m2 every 3 weeks (n = 6), E7389-LF 1.1 mg/m2 every 2 weeks (n = 7), E7389-LF 1.4 mg/m2 every 2 weeks (n = 6)]. Twenty-four patients were evaluated for DLTs, of whom 3 had DLTs (1 at E7389-LF 1.7 mg/m2 every 3 weeks, 1 at 1.1 mg/m2 every 2 weeks, and 1 at 1.4 mg/m2 every 2 weeks). All patients had ≥1 treatment-related treatment-emergent AE (TEAE); 68.0% had ≥1 grade 3-4 treatment-related TEAE. Changes in vasculature and IFN-related biomarkers were seen in each cohort. The overall ORR was 16%. Conclusions E7389-LF plus nivolumab was tolerable overall; the recommended dose for future study was 2.1 mg/m2 plus nivolumab 360 mg every 3 weeks. Significance This phase Ib part of a phase Ib/II study assessed the tolerability and activity of a liposomal formulation of eribulin (E7389-LF) plus nivolumab in 25 patients with advanced solid tumors. The combination was tolerable overall; 4 patients had a partial response. Vasculature and immune-related biomarker levels increased, suggesting vascular remodeling.
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Affiliation(s)
- Hanae Ida
- Department of Experimental Therapeutics, National Cancer Center Hospital, Tokyo, Japan
| | - Toshio Shimizu
- Department of Experimental Therapeutics, National Cancer Center Hospital, Tokyo, Japan
| | - Makoto Nishino
- Department of Experimental Therapeutics, National Cancer Center Hospital, Tokyo, Japan
| | - Yoshiaki Nakamura
- Department of Gastroenterology and Gastrointestinal Oncology, National Cancer Center Hospital East, Chiba, Japan
| | - Shu Yazaki
- Department of Experimental Therapeutics, National Cancer Center Hospital, Tokyo, Japan
- Department of Medical Oncology, National Cancer Center Hospital, Tokyo, Japan
| | - Yuki Katsuya
- Department of Experimental Therapeutics, National Cancer Center Hospital, Tokyo, Japan
| | - Jun Sato
- Department of Experimental Therapeutics, National Cancer Center Hospital, Tokyo, Japan
| | - Takafumi Koyama
- Department of Experimental Therapeutics, National Cancer Center Hospital, Tokyo, Japan
| | - Satoru Iwasa
- Department of Experimental Therapeutics, National Cancer Center Hospital, Tokyo, Japan
- Department of Gastrointestinal Medical Oncology, National Cancer Center Hospital, Tokyo, Japan
| | - Kazuki Sudo
- Department of Experimental Therapeutics, National Cancer Center Hospital, Tokyo, Japan
- Department of Medical Oncology, National Cancer Center Hospital, Tokyo, Japan
| | - Shunsuke Kondo
- Department of Experimental Therapeutics, National Cancer Center Hospital, Tokyo, Japan
- Department of Hepatobiliary and Pancreatic Oncology, National Cancer Center Hospital, Tokyo, Japan
| | - Kan Yonemori
- Department of Experimental Therapeutics, National Cancer Center Hospital, Tokyo, Japan
- Department of Medical Oncology, National Cancer Center Hospital, Tokyo, Japan
| | - Kohei Shitara
- Department of Gastroenterology and Gastrointestinal Oncology, National Cancer Center Hospital East, Chiba, Japan
- Department of Immunology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Satoshi Shiono
- Oncology Early Clinical Operation II, Ono Pharmaceutical Co., Ltd., Osaka, Japan
| | - Daiko Matsuoka
- Japan and Asia Clinical Development Department, Oncology Business Group, Eisai Co., Ltd., Tokyo, Japan
| | - Keisuke Yasuda
- Japan and Asia Clinical Development Department, Oncology Business Group, Eisai Co., Ltd., Tokyo, Japan
| | - Yohei Otake
- Japan and Asia Clinical Development Department, Oncology Business Group, Eisai Co., Ltd., Tokyo, Japan
| | - Takuya Suzuki
- Japan and Asia Clinical Development Department, Oncology Business Group, Eisai Co., Ltd., Tokyo, Japan
| | - Takao Takase
- Clinical Data Science Department, Medicine Development Center, Eisai Co., Ltd., Tokyo, Japan
| | - Shuya Takashima
- Clinical Data Science Department, Medicine Development Center, Eisai Co., Ltd., Tokyo, Japan
| | - Kohei Yamaguchi
- Clinical Pharmacology Science Department, Medicine Development Center, Eisai Co., Ltd., Tokyo, Japan
| | - Taro Semba
- Oncology Tsukuba Research Department, Oncology Business Group, Eisai Co., Ltd., Ibaraki, Japan
| | - Noboru Yamamoto
- Department of Experimental Therapeutics, National Cancer Center Hospital, Tokyo, Japan
- Department of Thoracic Oncology, National Cancer Center Hospital, Tokyo, Japan
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7
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Ooki A, Yamamoto S, Kawakami H, Makino T, Kawazoe A, Masuishi T, Tsushima T, Hirao M, Takegawa N, Hino K, Iwasa S, Hara H, Sumiyoshi N, Matsuoka D, Otake Y, Yasuda K, Takase T, Takashima S, Semba T, Oshima T. The esophageal cancer cohort of a phase 2 trial of E7389-LF (liposomal formulation of eribulin) + nivolumab. J Clin Oncol 2023. [DOI: 10.1200/jco.2023.41.4_suppl.337] [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: 01/25/2023] Open
Abstract
337 Background: E7389-LF is a liposomal formulation of the microtubule dynamics inhibitor, eribulin. Treatment with E7389-LF plus the programmed cell death 1 inhibitor nivolumab may result in an increased antitumor effect through vascular remodeling. The phase 1b part of the open-label Study 120 assessed dosing and safety of E7389-LF combined with nivolumab in patients (pts) with solid tumors; the phase 2 part assessed efficacy and safety in expansion cohorts, including an esophageal cancer (EGC) cohort. Methods: For the EGC cohort in the phase 2 part of Study 120, pts were required to have unresectable, measurable (by RECIST v1.1) EGC lesion(s) that showed progression during or after first-line chemotherapy with no other systemic chemotherapy. The primary objective of the phase 2 part was to assess objective response rate (ORR), with success defined as Bayesian posterior probability over 85% beyond threshold (20%) for best overall response (ie, 9 responders of planned 32 pts enrolled). Secondary objectives included assessment of safety and progression-free survival (PFS). The recommended phase 2 dosing regimen was previously determined to be E7389-LF 2.1 mg/m2 every 3 weeks (Q3W) plus nivolumab 360 mg Q3W. Tumor assessments were performed by RECIST v1.1 every 6 weeks. All adverse events (AEs) were monitored and recorded. Results: In the EGC cohort, 35 pts were included. Most pts (88.6%) were male, and the median age was 69.0 years (range 47–85). At data cutoff (May 31, 2022), 5 pts (14.3%) were still undergoing treatment. Discontinuations occurred in 30 pts (85.7%)—25 (71.4%) due to disease progression, 4 (11.4%) due to an adverse event, and 1 (2.9%) due to patient preference. ORR with E7389-LF + nivolumab was 22.9% (95% CI 10.4–40.1) and the disease control rate (DCR) was 62.9% (95% CI 44.9–78.5). Median PFS was 2.81 months (95% CI 1.31–4.17) and the 6-month PFS rate was 20.2% (95% CI 8.7–35.0). Median OS was not reached (95% CI 6.54–not estimable), and the 6-month OS rate was 71.4% (95% CI 53.4–83.5). Treatment-related treatment-emergent (TE) AEs of any grade and of grade ≥3 occurred in 94.3% and 80.0% of pts, respectively. The most common treatment-related TEAEs of any grade were neutropenia (65.7%), leukopenia (57.1%), and decreased appetite (45.7%). The most common treatment-related TEAEs of grade ≥3 were neutropenia (54.3%), leukopenia (34.3%), and febrile neutropenia (22.9%). TEAEs led to dose reduction of E7389-LF in 17 pts (48.6%). TEAEs led to withdrawal of either E7389-LF or nivolumab in 5 pts (14.3%): pneumonia (n=2), traumatic hemothorax (n=1), acute kidney injury (n=1), and pneumonitis (n=1). Conclusions: E7389-LF combined with nivolumab showed an ORR of 22.9% in pts with EGC. Despite this modest ORR, the DCR of 62.9% was notable. No new safety signals were observed compared to the known profiles of each monotherapy. Clinical trial information: NCT04078295 .
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Affiliation(s)
- Akira Ooki
- The Cancer Institute Hospital of Japanese Foundation for Cancer Research, Tokyo, Japan
| | | | | | - Tomoki Makino
- Osaka University Graduate School of Medicine, Suita, Japan
| | | | | | | | - Motohiro Hirao
- National Hospital Organization Osaka National Hospital, Osaka, Japan
| | | | - Kaori Hino
- National Hospital Organization Shikoku Cancer Center, Ehime, Japan
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8
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Muro K, Iwasa S, Sugimoto N, Kawakami H, Oshima T, Yamaguchi K, Hino K, Hirao M, Kurokawa Y, Kawakami T, Takegawa N, Hara H, Sumiyoshi N, Matsuoka D, Otake Y, Yasuda K, Takase T, Takashima S, Semba T, Kawazoe A. Gastric cancer (GC) cohort of a phase 2 trial of E7389-LF (liposomal formulation of eribulin) in combination with nivolumab. J Clin Oncol 2023. [DOI: 10.1200/jco.2023.41.4_suppl.339] [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: 01/25/2023] Open
Abstract
339 Background: Due to a lack of efficacy and long-term survival seen in previously-studied therapies, new therapies for pretreated advanced GC are warranted. E7389-LF is a new formulation that uses liposomes to encapsulate eribulin; this is anticipated to improve eribulin concentration in tumor tissues. E7389-LF and nivolumab have both shown efficacy as monotherapy in pretreated GC. E7389-LF may also synergize well with PD-1 inhibitors by acting as a cytotoxic therapy and by modulating the tumor microenvironment. Methods: Patients (pts) with unresectable and measurable GC, esophageal cancer, or small cell lung cancer who were previously treated with 1 (2 for GC) chemotherapy regimens were enrolled in the phase 2 part of Study 120 and treated with E7389-LF 2.1 mg/m2 plus nivolumab 360 mg every 3 weeks (Q3W). In the GC cohort, pts had to show disease progression from combination therapy including a platinum drug + fluoropyrimidine (1st-line therapy) and a taxane-containing regimen (2nd-line therapy). The primary objective of the phase 2 part was to evaluate the objective response rate (ORR); secondary objectives included safety, progression-free survival (PFS), and pharmacokinetics. Other efficacy (including overall survival [OS]) and biomarker objectives were exploratory. Tumor responses were assessed by the investigators per RECIST v1.1. Results: 31 GC pts were included; median age was 63 years; 18 pts were male, 13 were female. By the data cutoff date (May 31, 2022), 29 pts discontinued (26 due to disease progression, 3 due to adverse events). 8 Pts had a partial response (PR); the ORR was 25.8% (95% CI 11.9–44.6). The median PFS was 2.69 months (95% CI 1.91–2.99). The median OS was 7.85 months (95% CI 4.47–not estimable). The 6-month OS rate was 61.3%; the 9-month OS rate was 44.7%. 30 Pts had ≥1 treatment-related TEAE, most commonly neutropenia (n = 24); 25 pts had at least 1 grade ≥3 treatment-related TEAE, most commonly neutropenia (n = 22). 16 Pts had ≥1 TEAE resulting in dose reduction of E7389-LF. 4 Pts had ≥1 TEAE resulting in withdrawal of E7389-LF or nivolumab, including asthma, cerebral hemorrhage, decreased appetite, pulmonary edema, and upper gastrointestinal hemorrhage (each n = 1). 29 Pts had an evaluable PD-L1 combined positive score (CPS); 5 of 20 pts (25.0%) with a CPS of < 5 and 2 of 9 (22.2%) with a CPS of ≥5 had a PR. Increases in pharmacodynamic markers including vasculature-related markers were observed; antitumor immunity was observed per changes in interferon gamma (IFNγ) and IFNγ-related markers. Conclusions: E7389-LF 2.1 mg/m2 in combination with nivolumab 360 mg Q3W had promising efficacy for pretreated GC, as evidenced by the notable ORR of 25.8% as well as by PFS and OS. No new safety signals were identified for this combination. Biomarker changes suggested vascular remodeling activity and enhancement of antitumor immunity via IFNγ signaling. Clinical trial information: NCT04078295 .
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Affiliation(s)
- Kei Muro
- Aichi Cancer Center Hospital, Nagoya, Japan
| | | | | | | | | | - Kensei Yamaguchi
- The Cancer Institute Hospital of Japanese Foundation for Cancer, Tokyo, Japan
| | - Kaori Hino
- National Hospital Organization Shikoku Cancer Center, Ehime, Japan
| | - Motohiro Hirao
- National Hospital Organization Osaka National Hospital, Osaka, Japan
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9
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Hatakeyama M, Yamamoto T, Yasuda K, Matsumura S, Yasunaga K, Sato K. In-situ Observation of Damage Structure in Cu-Cr-Zr and Cu-Cr Alloy During 1.25 MeV Electron Irradiation. Nuclear Materials and Energy 2022. [DOI: 10.1016/j.nme.2022.101144] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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10
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Fujita Y, Katoh N, Uchinami Y, Taguchi H, Nishioka K, Mori T, Yasuda K, Minatogawa H, Koizumi F, Otsuka M, Takao S, Tamura M, Tanaka S, Sutherland K, Tha K, Ito Y, Shimizu S, Aoyama H. Pre-Treatment Apparent Diffusion Coefficient Histogram Metrics as a Predictor of Local Tumor Control After Proton Beam Therapy in Patients With Hepatocellular Carcinomas. Int J Radiat Oncol Biol Phys 2021. [DOI: 10.1016/j.ijrobp.2021.07.360] [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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11
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Otsuka M, Yasuda K, Minatogawa H, Fujita Y, Uchinami Y, Koizumi F, Suzuki R, Miyamoto N, Suzuki T, Tsushima N, Kano S, Taguchi J, Shimizu Y, Homma A, Shimizu S, Aoyama H. A Dosimetric Analysis of Locoregional Failure Using Deformable Image Registration in Hypopharyngeal Cancer After Sequential-Boost Intensity-Modulated Radiotherapy. Int J Radiat Oncol Biol Phys 2021. [DOI: 10.1016/j.ijrobp.2021.07.1082] [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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12
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Mandai K, Uno K, Yasuda K. Gastrointestinal: Plastic stent-induced polyp-like lesion in the bile duct. J Gastroenterol Hepatol 2020; 35:2031. [PMID: 32498133 DOI: 10.1111/jgh.15092] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/13/2020] [Accepted: 05/07/2020] [Indexed: 12/09/2022]
Affiliation(s)
- K Mandai
- Department of Gastroenterology, Kyoto Second Red Cross Hospital
| | - K Uno
- Department of Gastroenterology, Kyoto Second Red Cross Hospital
| | - K Yasuda
- Department of Gastroenterology, Kyoto Second Red Cross Hospital
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13
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Yasuda K, Okada S, Okazaki Y, Hiasa K, Tsuga K, Abe Y. Bone turnover markers to assess jawbone quality prior to dental implant treatment: a case-control study. Int J Implant Dent 2020; 6:67. [PMID: 33140835 PMCID: PMC7606420 DOI: 10.1186/s40729-020-00264-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2020] [Accepted: 09/09/2020] [Indexed: 12/04/2022] Open
Abstract
Background Bone quality is as important as bone mineral density in terms of bone strength. Bone turnover markers (BTMs) are clinical indicators of bone quality. In implant dentistry, bone quality is considered equivalent to bone density on radiographic assessments. The purpose of this study was to determine whether the BTM values are reflected in jawbone condition by evaluating the relationship at baseline and during follow-up in patients with prosthodontic implants. Computed tomography (CT) scans were obtained and BTM (osteocalcin, bone-specific alkaline phosphatase, pyridinoline cross-linked carboxyterminal telopeptide of type I collagen, and crosslinked N-telopeptide of type I collagen) levels in blood samples were measured in partially edentulous eighteen patients before implant surgery. During the follow-up observation after implant surgery, marginal bone loss (MBL) was measured on dental radiography. We investigated the relationship between the presence of BTM abnormalities and radiographic bone density. Results More women than men had abnormal BTM values. Bone turnover was accelerated in the group of women with abnormal BTM values. The density of cancellous bone at the implant placement site was significantly lower in the patients with abnormally high BTM values than in their counterparts with BTM values in the normal range. Conclusions Female patients who undergo implant treatments may have reduced bone quality; evaluations of bone strength will require assessments of both BTMs and the density of cancellous bone.
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Affiliation(s)
- Keisuke Yasuda
- Department of Advanced Prosthodontics, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3, Kasumi, Minami-ku, Hiroshima, 734-8553, Japan
| | - Shinsuke Okada
- Department of Advanced Prosthodontics, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3, Kasumi, Minami-ku, Hiroshima, 734-8553, Japan
| | - Yohei Okazaki
- Department of Advanced Prosthodontics, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3, Kasumi, Minami-ku, Hiroshima, 734-8553, Japan
| | - Kyou Hiasa
- Department of Advanced Prosthodontics, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3, Kasumi, Minami-ku, Hiroshima, 734-8553, Japan
| | - Kazuhiro Tsuga
- Department of Advanced Prosthodontics, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3, Kasumi, Minami-ku, Hiroshima, 734-8553, Japan
| | - Yasuhiko Abe
- Department of Advanced Prosthodontics, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3, Kasumi, Minami-ku, Hiroshima, 734-8553, Japan.
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14
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Takahara K, Oguri M, Yasuda K, Sumi T, Izumi K, Takikawa T, Takahashi H, Ishii H, Murohara T. Efficacy of rapid decongestion strategy in patients hospitalized for acute heart failure. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.1193] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
Clinical congestion is the most dominant feature in patients with acute decompensated heart failure (HF). However, uncertainty exists due to the permutations and combinations of congestion status and decongestion strategies. We aimed to investigate the impact of congestion status and its improvement on 1-year mortality.
Methods
We prospectively included 453 consecutive patients hospitalized for acute decompensated HF between July 2015 and March 2017. Congestion was evaluated using the congestion score which consists of signs and symptoms including dyspnea, fatigue, orthopnea, jugular vein distension, rales, and edema. This score ranges from 0 to 3 for each value, and calculated by summing each score. We assessed this score at admission, day 3, and discharge.
Results
The median age was 81 (interquartile range 75–87) years, and 54.1% of the subjects were male. The 1-year mortality rate was 22.7%. The congestion scores at admission, day 3, and discharge were 10.7±3.9, 3.4±3.5, and 0.3±0.8, respectively. The rate of improvement during the first 3 days was 78% and 46.6% had residual congestion, defined as scores at day 3 ≥3. The score at day 3 and improvement rate during the first 3 days were related to 1-year all-cause mortality (P<0.001). We examined combined predictive values by calculating multivariable-adjusted hazard ratios for associations of residual congestion and improvement rate during the first 3 days (cut-off value 64%); and prognostic variables identified by univariate Cox regression model (age, body mass index, systolic blood pressure, potassium level, albumin level, the prevalence of anemia and hypertension, left ventricular ejection fraction, ischemic etiology, previous HF hospitalization). Residual congestion and lesser improvement (% improvement <64%) were associated with higher relative risk of 1-year all-cause mortality than residual congestion and higher improvement (% improvement ≥64%) [adjusted hazard ratio (aHR) 2.33, 95% CI 1.11–4.91, P=0.025], or resolved congestion (aHR 2.17, 95% CI 1.30–3.63, P=0.003). Similar analysis revealed significant relationship of the score at day 3 and the rate of improvement from admission to day 3 to cardiovascular mortality. Combined predictive values of residual congestion and lesser improvement with adjustment for prognostic variables identified by univariate Cox regression model (age, body mass index, systolic blood pressure, potassium level, albumin level, the prevalence of anemia, reduced eGFR, and hypertension, left ventricular ejection fraction, ischemic etiology, previous HF hospitalization) were higher than those with residual congestion and higher improvement (aHR 3.04, 95% CI 1.15–8.03, P=0.025), or resolved congestion (aHR 3.17, 95% CI 1.65–6.11, P<0.001).
Conclusions
This study suggested that rapid decongestion therapy after hospital admission could be prerequisite to improve 1-year mortality in acute decompensated HF.
Funding Acknowledgement
Type of funding source: None
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Affiliation(s)
- K Takahara
- Kasugai Municipal Hospital, Department of Cardiology, Kasugai, Japan
| | - M Oguri
- Kasugai Municipal Hospital, Department of Cardiology, Kasugai, Japan
| | - K Yasuda
- Kasugai Municipal Hospital, Department of Cardiology, Kasugai, Japan
| | - T Sumi
- Ichinomiya municipal hospital, Department of Cardiology, Ichinomiya, Japan
| | - K Izumi
- Kasugai Municipal Hospital, Department of Cardiology, Kasugai, Japan
| | - T Takikawa
- Nagoya University Graduate School of Medicine, Department of Cardiology, Nagoya, Japan
| | - H Takahashi
- Fujita Health University, Division of Medical Statistics, Toyoake, Japan
| | - H Ishii
- Nagoya University Graduate School of Medicine, Department of Cardiology, Nagoya, Japan
| | - T Murohara
- Nagoya University Graduate School of Medicine, Department of Cardiology, Nagoya, Japan
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15
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Fukuyama Y, Otake H, Seike F, Kawamori H, Toba T, Nagasawa A, Nakano S, Tanimura K, Takahashi Y, Sasabe K, Shite J, Iwasaki M, Takaya T, Yasuda K, Hirata K. Potential relationship between high wall shear stress and plaque rupture that cause acute coronary syndrome: insights from optical coherence tomography based computational fluid dynamic simulation. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.0321] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
The direct relationship between plaque rupture (PR) that cause acute coronary syndrome (ACS) and wall shear stress (WSS) remains uncertain.
Methods
From the Kobe University ACS-OCT registry, one hundred ACS patients whose culprit lesions had PR documented by optical coherence tomography (OCT) were enrolled. Lesion-specific 3D coronary artery models were created using OCT data. Specifically, at the ruptured portion, the tracing of the luminal edge of the residual fibrous cap was smoothly extrapolated to reconstruct the luminal contour before PR. Then, WSS was computed from computational fluid dynamics (CFD) analysis by a single core laboratory. Relationships between WSS and the location of PR were assessed with 1) longitudinal 3-mm segmental analysis and 2) circumferential analysis. In the longitudinal segmental analysis, each culprit lesion was subdivided into five 3-mm segments with respect to the minimum lumen area (MLA) location at the centered segment (Figure. 1). In the circumferential analysis, we measured WSS values at five points from PR site and non-PR site on the cross-sections with PR. Also, each ruptured plaque was categorized into the lateral type PR (L-PR), central type PR (C-PR), and others according to the relation between the site of tearing and the cavity (Figure. 2).
Results
In the longitudinal 3-mm segmental analysis, the incidences of PR at upstream (UP1 and 2), MLA, and downstream (DN1 and 2) were 45%, 40%, and 15%, respectively. The highest average WSS was located in UP1 in the upstream PR (UP1: 15.5 (10.4–26.3) vs. others: 6.8 (3.3–14.7) Pa, p<0.001) and MLA segment in the MLA PR (MLA: 18.8 (6.0–34.3) vs. others: 6.5 (3.1–11.8) Pa, p<0.001), and the second highest WSS was located at DN1 in the downstream PR (DN1: 5.8 (3.7–11.5) vs. others: 5.5 (3.7–16.5) Pa, p=0.035). In the circumferential analysis, the average WSS at PR site was significantly higher than that of non-PR site (18.7 (7.2–35.1) vs. 13.9 (5.2–30.3) Pa, p<0.001). The incidence of L-PR, C-PR, and others were 51%, 42%, and 7%, respectively. In the L-PR, the peak WSS was most frequently observed in the lateral site (66.7%), whereas that in the C-PR was most frequently observed in the center site (70%) (Figure. 3). In the L-PR, the peak WSS value was significantly lower (44.6 (19.6–65.2) vs. 84.7 (36.6–177.5) Pa, p<0.001), and the thickness of broken fibrous cap was significantly thinner (40 (30–50) vs. 80 (67.5–100) μm, p<0.001), and the lumen area at peak WSS site was significantly larger than those of C-PR (1.5 (1.3–2.0) vs. 1.4 (1.1–1.6) mm2, p=0.008). Multivariate analysis demonstrated that the presence of peak WSS at lateral site, thinner broken fibrous cap thickness, and larger lumen area at peak WSS site were independently associated with the development of the L-PR.
Conclusions
A combined approach with CFD simulation and morphological plaque evaluation by using OCT might be helpful to predict future ACS events induced by PR.
Funding Acknowledgement
Type of funding source: None
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Affiliation(s)
- Y Fukuyama
- Kobe University Graduate School of Medicine, Division of Cardiovascular Medicine, Department of Internal Medicine, Kobe, Japan
| | - H Otake
- Kobe University Graduate School of Medicine, Division of Cardiovascular Medicine, Department of Internal Medicine, Kobe, Japan
| | - F Seike
- Ehime University Graduate School of Medicine, Department of Cardiology, Pulmonology, Hypertension & Nephrology, Matsuyama, Japan
| | - H Kawamori
- Kobe University Graduate School of Medicine, Division of Cardiovascular Medicine, Department of Internal Medicine, Kobe, Japan
| | - T Toba
- Kobe University Graduate School of Medicine, Division of Cardiovascular Medicine, Department of Internal Medicine, Kobe, Japan
| | - A Nagasawa
- Kobe University Graduate School of Medicine, Division of Cardiovascular Medicine, Department of Internal Medicine, Kobe, Japan
| | - S Nakano
- Kobe University Graduate School of Medicine, Division of Cardiovascular Medicine, Department of Internal Medicine, Kobe, Japan
| | - K Tanimura
- Kobe University Graduate School of Medicine, Division of Cardiovascular Medicine, Department of Internal Medicine, Kobe, Japan
| | - Y Takahashi
- Kobe University Graduate School of Medicine, Division of Cardiovascular Medicine, Department of Internal Medicine, Kobe, Japan
| | - K Sasabe
- Ehime University Graduate School of Science and Engineering, Department of Mechanical Engineering, Matsuyama, Japan
| | - J Shite
- Osaka Saiseikai Nakatsu Hospital, Division of Cardiovascular Medicine, Osaka, Japan
| | - M Iwasaki
- Hyogo Prefectural Awaji Hospital, Division of Cardiovascular Medicine, Sumoto, Japan
| | - T Takaya
- Hyogo Brain and Heart Center, Division of Cardiovascular Medicine, Himeji, Japan
| | - K Yasuda
- Ehime University Graduate School of Science and Engineering, Department of Mechanical Engineering, Matsuyama, Japan
| | - K Hirata
- Kobe University Graduate School of Medicine, Division of Cardiovascular Medicine, Department of Internal Medicine, Kobe, Japan
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Imai Y, Nagai N, Yasuda K, Kusakabe M, Inoue Y, Natsuaki M, Yamanishi K. 316 Dupilumab effects on the circulating ILC2 population and ILC2/3 repertoire in patients with atopic dermatitis. J Invest Dermatol 2020. [DOI: 10.1016/j.jid.2020.03.323] [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: 11/24/2022]
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17
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Naoe T, Hasebe A, Horiuchi R, Makita Y, Okazaki Y, Yasuda K, Matsuo K, Yoshida Y, Tsuga K, Abe Y, Yokoyama A. Development of tissue conditioner containing cetylpyridinium chloride montmorillonite as new antimicrobial agent: Pilot study on antimicrobial activity and biocompatibility. J Prosthodont Res 2020; 64:436-443. [PMID: 32063532 DOI: 10.1016/j.jpor.2019.12.002] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2019] [Revised: 11/26/2019] [Accepted: 12/03/2019] [Indexed: 11/26/2022]
Abstract
PURPOSE The mechanical properties, antimicrobial activity, and biocompatibility of a novel antimicrobial tissue conditioner containing cetylpyridinium chloride with montmorillonite (CPC-Mont) were evaluated. METHODS To examine the mechanical properties of the novel material, hardness, consistency, and penetration tests were conducted. Antimicrobial activity against Candida albicans (C. albicans) and Staphylococcus aureus (S. aureus) was evaluated. Cell viabilities of fibroblasts and epithelial cells using eluates from materials were measured to evaluate cytotoxicity. In addition, to assess tissue response, animal experiments were conducted. RESULTS The hardness test results were similar to those of other commercially available materials. The novel tissue conditioner showed good antimicrobial activity against C. albicans and S. aureus compared with other materials. This effect was sustained for a week for C. albicans. In the case of S. aureus, microbial growth was suppressed for up to 3 weeks. Cell viability of the novel material for the eluate at 1 day was significantly less than those of other material for both cells. However, the cell viability at 7 days showed no significant difference. Animal experiments demonstrated that inflammatory responses around materials were not observed on the oral mucosa as other material. CONCLUSION Within the limitations of this in vitro and in vivo study, the results suggest that the newly developed tissue conditioner containing CPC-Mont has not only excellent antimicrobial properties, but also the same mechanical properties and biocompatibility as tissue conditioners on the market.
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Affiliation(s)
- Tsubasa Naoe
- Oral Functional Prosthodontics, Department of Oral Functional Science, Faculty and Graduate School of Dental Medicine, Hokkaido University, Kita 13, Nishi 7, Kita-ku, Sapporo, Hokkaido 060-8586, Japan
| | - Akira Hasebe
- Oral Molecular Microbiology, Department of Oral Pathobiological Science, Faculty and Graduate School of Dental Medicine, Hokkaido University, Kita 13, Nishi 7, Kita-ku, Sapporo, Hokkaido 060-8586, Japan.
| | - Rumi Horiuchi
- Department of Removable Prosthodontics, Hokkaido University Hospital, Kita 14, Nishi 5, Kita-ku, Sapporo, Hokkaido 060-8586, Japan.
| | - Yoji Makita
- Health Environment Control Research Group, Health Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), 2217-14, Hayashi, Takamatsu, Kagawa 761-0395, Japan.
| | - Yohei Okazaki
- Department of Advanced Prosthodontics, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3, Kasumi, Minami-ku, Hiroshima 734-8553, Japan.
| | - Keisuke Yasuda
- Department of Advanced Prosthodontics, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3, Kasumi, Minami-ku, Hiroshima 734-8553, Japan.
| | - Kenya Matsuo
- Department of Applied Chemistry, Graduate School of Natural Science and Technology, Okayama University, 3-1-1, Tsushimanaka, Kita-ku, Okayama 700-8530, Japan.
| | - Yasuhiro Yoshida
- Biomaterials and Bioengineering, Department of Oral Health Science, Faculty and Graduate School of Dental Medicine, Hokkaido University, Kita 13, Nishi 7, Kita-ku, Sapporo, Hokkaido 060-8586, Japan.
| | - Kazuhiro Tsuga
- Department of Advanced Prosthodontics, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3, Kasumi, Minami-ku, Hiroshima 734-8553, Japan.
| | - Yasuhiko Abe
- Department of Advanced Prosthodontics, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3, Kasumi, Minami-ku, Hiroshima 734-8553, Japan.
| | - Atsuro Yokoyama
- Oral Functional Prosthodontics, Department of Oral Functional Science, Faculty and Graduate School of Dental Medicine, Hokkaido University, Kita 13, Nishi 7, Kita-ku, Sapporo, Hokkaido 060-8586, Japan.
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18
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Sakai S, Matsuda R, Adachi R, Akiyama H, Maitani T, Ohno Y, Oka M, Abe A, Seiki K, Oda H, Shiomi K, Urisu A, Arakawa F, Futo S, Haraguchi H, Hirose Y, Hirota M, Iidzuka T, Kan K, Kanayama S, Koike T, Kojima K, Minegishi Y, Mori Y, Nishihara R, Sato H, Yamaguchi A, Yamakawa H, Yasuda K. Interlaboratory Evaluation of Two Enzyme-Linked Immunosorbent Assay Kits for the Determination of Crustacean Protein in Processed Foods. J AOAC Int 2019. [DOI: 10.1093/jaoac/91.1.123] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
Abstract
The labeling of foods containing material derived from crustaceans such as shrimp and crab is to become mandatory in Japan because of increases in the number of allergy patients. To ensure proper labeling, 2 novel sandwich enzyme-linked immunosorbent assay (ELISA) kits for the determination of crustacean protein in processed foods, the N kit (Nissui Pharmaceutical Co., Ltd, Ibaraki, Japan) and the M kit (Maruha Nichiro Holdings, Inc., Ibaraki, Japan), have been developed. Five types of model processed foods containing 10 and/or 11.9 g/g crustacean soluble protein were prepared for interlaboratory evaluation of the performance of these kits. The N kit displayed a relatively high level of reproducibility relative standard deviation (interlaboratory precision; 4.08.4 RSDR) and sufficient recovery (6586) for all the model processed foods. The M kit displayed sufficient reproducibility (17.620.5 RSDR) and a reasonably high level of recovery (82103). The repeatability relative standard deviation (RSDr) values regarding the detection of crustacean proteins in the 5 model foods were mostly <5.1 RSDr for the N kit and 9.9 RSDr for the M kit. In conclusion, the results of this interlaboratory evaluation suggest that both these ELISA kits would be very useful for detecting crustacean protein in processed foods.
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Affiliation(s)
- Shinobu Sakai
- National Institute of Health Sciences, 1-18-1, Kamiyoga, Setagaya-ku, Tokyo 158-8501, Japan
| | - Rieko Matsuda
- National Institute of Health Sciences, 1-18-1, Kamiyoga, Setagaya-ku, Tokyo 158-8501, Japan
| | - Reiko Adachi
- National Institute of Health Sciences, 1-18-1, Kamiyoga, Setagaya-ku, Tokyo 158-8501, Japan
| | - Hiroshi Akiyama
- National Institute of Health Sciences, 1-18-1, Kamiyoga, Setagaya-ku, Tokyo 158-8501, Japan
| | - Tamio Maitani
- National Institute of Health Sciences, 1-18-1, Kamiyoga, Setagaya-ku, Tokyo 158-8501, Japan
| | - Yasuo Ohno
- National Institute of Health Sciences, 1-18-1, Kamiyoga, Setagaya-ku, Tokyo 158-8501, Japan
| | - Michihiro Oka
- Nissui Pharmaceutical Co, Ltd, 1075-2, Hokunanmoro, Yuki, Ibaraki 307-0036, Japan
| | - Akihisa Abe
- Nippon Suisan Kaisha, Ltd, 559-6, Kitano-machi, Hachioji, Tokyo 192-0906, Japan
| | - Kohsuke Seiki
- Maruha Nichiro Holdings, Inc., 16-2, Wadai, Tsukuba, Ibaraki 300-4295, Japan
| | - Hiroshi Oda
- Maruha Nichiro Holdings, Inc., 16-2, Wadai, Tsukuba, Ibaraki 300-4295, Japan
| | - Kazuo Shiomi
- Tokyo University of Marine Science and Technology, 4-5-7, Konan, Minato-ku, Tokyo 108-8477, Japan
| | - Atsuo Urisu
- Fujita Health University, 1-98, Dengakugakubo, Kutsukake-cho, Toyoake, Aichi 470-1192, Japan
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19
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Sakai S, Adachi R, Akiyama H, Teshima R, Doi H, Shibata H, Urisu A, Arakawa F, Haraguchi H, Hirose Y, Hirota M, Iidzuka T, Ikeno K, Kojima K, Maeda S, Minegishi Y, Mishima T, Oguchi K, Seki T, Yamakawa H, Yano T, Yasuda K. Determination of Walnut Protein in Processed Foods by Enzyme-Linked Immunosorbent Assay: Interlaboratory Study. J AOAC Int 2019. [DOI: 10.1093/jaoac/93.4.1255] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
Abstract
Because food allergens from tree nuts, including walnuts, are a frequent cause of adverse food reactions for allergic patients, the labeling of foods containing ingredients derived from tree nuts is required in numerous countries. According to Japanese regulations, the labeling of food products containing walnuts is recommended. To ensure proper labeling, a novel sandwich ELISA kit for the determination of walnut protein in processed foods (Walnut Protein [2S-Albumin] Kit; Morinaga Institute of Biological Science, Inc.; walnut kit) has been developed. We prepared seven types of incurred samples (model processed foods: biscuits, bread, sponge cake, orange juice, jelly, chicken meatballs, and rice gruel) containing 10 g walnut soluble protein/g of food for use in interlaboratory evaluations of the walnut kit. The walnut kit displayed sufficient reproducibility relative standard deviations (interlaboratory precision: 5.89.9 RSDR) and a high level of recovery (81119) for all the incurred samples. All the repeatability relative standard deviation (RSDr) values for the incurred samples that were examined were less than 6.0. The results of this interlaboratory evaluation suggested that the walnut kit could be used as a precise and reliable tool for determination of walnut protein in processed foods.
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Affiliation(s)
- Shinobu Sakai
- National Institute of Health Sciences, 1-18-1, Kamiyoga, Setagaya-ku, Tokyo 158-8501, Japan
| | - Reiko Adachi
- National Institute of Health Sciences, 1-18-1, Kamiyoga, Setagaya-ku, Tokyo 158-8501, Japan
| | - Hiroshi Akiyama
- National Institute of Health Sciences, 1-18-1, Kamiyoga, Setagaya-ku, Tokyo 158-8501, Japan
| | - Reiko Teshima
- National Institute of Health Sciences, 1-18-1, Kamiyoga, Setagaya-ku, Tokyo 158-8501, Japan
| | - Hirotoshi Doi
- Morinaga Institute of Biological Science, Inc., 2-1-16, Sachiura, Kanazawa-ku, Yokohama 236-0003, Japan
| | - Haruki Shibata
- Morinaga Institute of Biological Science, Inc., 2-1-16, Sachiura, Kanazawa-ku, Yokohama 236-0003, Japan
| | - Atsuo Urisu
- Fujita Health University, The Second Teaching Hospital, 3-6-10, Otobashi, Nakagawa-ku, Nagoya 454-8509, Japan
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20
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Sakai S, Adachi R, Akiyama H, Teshima R, Morishita N, Matsumoto T, Urisu A, Arakawa F, Endo Y, Haraguchi H, Hirose Y, Hirota M, Iidzuka T, Kojima K, Minegishi Y, Mishima T, Nishihara R, Seki T, Yamakawa H, Yano T, Yasuda K. Enzyme-Linked Immunosorbent Assay Kit for the Determination of Soybean Protein in Processed Foods: Interlaboratory Evaluation. J AOAC Int 2019. [DOI: 10.1093/jaoac/93.1.243] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
Abstract
The labeling of foods containing ingredients derived from soybean is recommended in Japan because of an increasing number of patients who are allergic to soybeans. To ensure proper labeling, a novel sandwich ELISA kit for the determination of soybean protein in processed foods (FASTKIT Ver. II, Soybean, Nippon Meat Packers, Inc.; soy kit) has been developed. Five types of incurred samples (model processed foods: rice gruel, sausage, sweet adzuki bean soup, sweet potato cake, and tomato sauce) containing 10 g soybean soluble protein/g food were prepared for use in interlaboratory evaluations of the soy kit. The soy kit displayed a sufficient RSDR value (interlaboratory precision: 9.313.4 RSDR) and a high level of recovery (97114) for all the incurred samples. The RSDr value for the incurred samples was mostly <4.8. The results of this interlaboratory evaluation suggest that the soy kit can be used as a precise and reliable tool for the determination of soybean proteins in processed foods.
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Affiliation(s)
- Shinobu Sakai
- National Institute of Health Sciences, 1-18-1, Kamiyoga, Setagaya-ku, Tokyo 158-8501, Japan
| | - Reiko Adachi
- National Institute of Health Sciences, 1-18-1, Kamiyoga, Setagaya-ku, Tokyo 158-8501, Japan
| | - Hiroshi Akiyama
- National Institute of Health Sciences, 1-18-1, Kamiyoga, Setagaya-ku, Tokyo 158-8501, Japan
| | - Reiko Teshima
- National Institute of Health Sciences, 1-18-1, Kamiyoga, Setagaya-ku, Tokyo 158-8501, Japan
| | - Naoki Morishita
- R&D Center Nippon Meat Packers, Inc., 3-3, Midorigahara, Tsukuba, Ibaraki 300-2646, Japan
| | - Takashi Matsumoto
- R&D Center Nippon Meat Packers, Inc., 3-3, Midorigahara, Tsukuba, Ibaraki 300-2646, Japan
| | - Atsuo Urisu
- Fujita Health University, The Second Teaching Hospital, 3-6-10, Otobashi, Nakagawa-ku, Nagoya 454-8509, Japan
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21
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Takahara K, Yasuda K, Oguri M, Ishii H, Murohara T. P790Verification of selective arterial blood sampling for the assessment of in-hospital mortality in acute decompensated heart failure. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz747.0389] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
Acidosis or lactate accumulation is frequently observed in patients with acute decompensated heart failure (ADHF). Although each value can be easily obtained and evaluated by arterial blood sampling, sampling to all patients is difficult in daily clinical practice. Therefore, the prognostic impact of acidosis or lactate accumulation on this condition remains to be identified definitively.
Purpose
The purpose of the study was to verify the effectiveness of selective arterial blood sampling at emergency department in patients with ADHF by evaluating an association with in-hospital mortality.
Methods
A total of 917 consecutive patients with ADHF from April 2012 to March 2017 were enrolled. We compared baseline characteristics and in-hospital mortality between patients with or without arterial blood sampling. Patients performed blood sampling were assigned to four groups according to the presence or absence of acidosis (PH <7.35) and lactate accumulation (>2.0 mmol/L), and predictive value of acidosis and/or lactate accumulation for in-hospital mortality was calculated by multivariable logistic regression analysis.
Results
Of all patients, 689 patients (75.1%) underwent blood sampling. Systolic blood pressure and heart rate at hospital arrival, use of emergency medical service, previous heart failure hospitalization, New York Heart Association classification grade IV, presence of jugular vein distention, and the prevalence of hypertension and dementia, were significantly different between the two groups (P<0.05). There was no difference in the occurrence of in-hospital mortality between patients with or without blood sampling (9.3% in patients with blood sampling versus 9.2% in those without blood sampling, respectively; P=0.972). In 689 patients who underwent blood sampling, we examined combined predictive value of acidosis and/or lactate accumulation for in-hospital mortality by multivariable logistic regression analysis with adjustments for covariates with P<0.05 (age, systolic blood pressure at hospital arrival, left ventricular ejection fraction, and cold profile), and showed that acidosis with lactate accumulation [adjusted odds ratio (OR) 3.30, 95% confidence interval (CI) 1.22–8.93, P=0.019], acidosis without lactate accumulation (adjusted OR 4.06, 95% CI 1.12–14.7, P=0.033), lactate accumulation without acidosis (adjusted OR 2.69, 95% CI 1.14–6.33, P=0.024) were significantly (P<0.05) associated with in-hospital mortality. Our results indicated that patients presenting acidosis without lactate accumulation revealed the highest in-hospital mortality among the four groups.
Conclusion
Arterial blood sampling at emergency department could be beneficial for stratifying high risk patients with ADHF. Furthermore, routine blood sampling could be allowed in patients with ADHF if we can secure safety.
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Affiliation(s)
- K Takahara
- Kasugai Municipal Hospital, Department of Cardiology, Kasugai, Japan
| | - K Yasuda
- Kasugai Municipal Hospital, Department of Cardiology, Kasugai, Japan
| | - M Oguri
- Kasugai Municipal Hospital, Department of Cardiology, Kasugai, Japan
| | - H Ishii
- Nagoya University Graduate School of Medicine, Department of Cardiology, Nagoya, Japan
| | - T Murohara
- Nagoya University Graduate School of Medicine, Department of Cardiology, Nagoya, Japan
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22
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Ohno S, Yoshinaga M, Ozawa J, Fukuyama M, Seiichi S, Kashiwa A, Yasuda K, Kaneko S, Nakau K, Inukai S, Sakazaki H, Makiyama T, Aiba T, Suzuki H, Horie M. P2865Mutation specific clinical characteristics in long QT syndrome type 8; severe phenotype in Timothy syndrome patients. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz748.1174] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Background
Long QT syndrome type 8 (LQT8) caused by mutations in CACNA1C has been classified as a very rare and severe type of long QT syndrome accompanied with Timothy syndrome (TS) with extra-cardiac phenotype. Recently, various mutations in CACNA1C have been identified in non-TS patients. However, mutation specific severity in LQT8 has not been elucidated yet, especially for non-TS patients.
Purpose
We aimed to clarify the clinical characteristics of LQT8 patients.
Methods
The study consists of 26 LQT8 patients (21 probands and 5 family members). We evaluated their phenotype.
Results
Table summarizes the clinical characteristics of LQT8 patients. TS patients diagnosed in younger age than those of non-TS. Four TS and one non-TS patients were diagnosed at the age of 0, though the non-TS patient was a son of a patient and asymptomatic. Nine patients suffered symptoms including 7 with cardiac arrest. We identified three TS mutations; classical p.G406R in two and p.G402S in two, and a new TS mutation, p.412M in one. Four of TS patients were symptomatic and two died suddenly at the age of 4 and 5. In contrast, no one died in non-TS patients. Five non-TS patients suffered symptoms in the age of 4,9,15,54 and 64, and the mutations were p.S643F, p.R858H (2 patients), p.K1518E and p.K1591T.
Characteristics of TS and non-TS patient TS Non-TS P N (male) 5 (2) 21 (9) Age (range) 0 (0–7) 12 (0–64) 0.004 Symptom Syncope 4 5 0.034 CPA 3 4 0.101 ECG characteristics QT interval 603±40 507±14 0.011 T wave alternans 5 2 <0.001 AV Block 4 1 0.002 Therapy (4 unknown) Beta-blocker 4 7 0.311 Mexiletine 3 1 0.024 ICD implantation 2 2 0.21
Conclusions
Although TS patients showed severe phenotype, most of the non-TS patients were asymptomatic. The phenotype in LQT8 are diversely different depend on the mutations, especially between patients with TS and non-TS.
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Affiliation(s)
- S Ohno
- National Cerebral and Cardiovascular Center, Osaka, Japan
| | - M Yoshinaga
- National Hospital Organization Kagoshima Medical Center, Kagoshima, Japan
| | - J Ozawa
- Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - M Fukuyama
- Shiga University of Medical Science, Otsu, Japan
| | - S Seiichi
- Okinawa Children's Medical Center, Haibaru, Japan
| | - A Kashiwa
- Kyoto University Graduate School of Medicine, Department of Cardiovascular Medicine, Kyoto, Japan
| | - K Yasuda
- Aichi Children's Health and Medical Center, Daifu, Japan
| | - S Kaneko
- Seirei Hamamatsu General Hospital, Hamamatsu, Japan
| | - K Nakau
- Asahikawa Medical University, Asahikawa, Japan
| | - S Inukai
- Nagoya Daini Red Cross Hospital, Nagoya, Japan
| | - H Sakazaki
- Hyogo Prefectural Amagasaki General Medical Center, Amagasaki, Japan
| | - T Makiyama
- Kyoto University Graduate School of Medicine, Department of Cardiovascular Medicine, Kyoto, Japan
| | - T Aiba
- National Cerebral and Cardiovascular Center, Osaka, Japan
| | - H Suzuki
- Uonuma Kikan Hospital, Minamiuonuma, Japan
| | - M Horie
- Shiga University of Medical Science, Otsu, Japan
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23
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Takahashi N, Ogita M, Tsuboi S, Nishio R, Yasuda K, Takeuchi M, Iso T, Sonoda T, Yatsu S, Wada H, Shiozawa T, Dohi T, Yanagawa Y, Suwa S, Daida H. P1745Clinical characteristics and long-term outcome in patients with helicopter-transported acute coronary syndrome after primary percutaneous coronary intervention. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz748.0499] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Background
Reducing delay to percutaneous coronary intervention improves functional outcome and reduces long-term mortality. Transportation by helicopter is often quicker than ground transport and thus may improve overall prognosis through reduced ischemic injury and infarction size. Our hospital is located on the medically-depopulated peninsula surrounded by mountain. The journey from the southern tip of the peninsula to the critical care medical center of our hospital take 1.5 hour by a ground ambulance but only 15 minutes by helicopter.
We compared the clinical characteristics and long-term mortality between air and ground transport of ACS patients for primary PCI.
Methods
We conducted an observational cohort study evaluating 2324 patients (mean age 68.5±12.0, male 75.2%) with ACS underwent primary PCI between April 2004 and December 2017 at our hospital.
We divided into three groups according to transportation system type (air, ground, walk-in).
The primary outcome was defined as all-cause death during the long-term follow-up.
Results
Among the entire cohort, 577 patients (24.8%) were transported by air. 1326 (57.1%) patients by ambulance, 421 (18.1%) patients by walk. Baseline characteristics were comparable, but patients by air had a higher prevalence of ST-elevation myocardial infarction.
The rate of long-term mortality was comparable during the median follow up of 6 years (air, 21.1% vs. ground, 21.4% vs. walk-in, 21.1%, respectively, log-rank p=0.72). Multivariate Cox regression analysis showed no significant association between air transportation and long-term mortality (Adjusted HR [vs ground] 1.05, 95% CI 0.60–1.78, p=0.85 and [vs walk-in] 0.94, 95% CI 0.62–1.43, respectively, p=0.77).
Kaplan-Meier curve
Conclusions
The rate of long-term mortality in patients with ACS transported by air was comparable with those transported by ground.
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Affiliation(s)
- N Takahashi
- Juntendo University Shizuoka Hospital, Cardiology, Izunokuni, Japan
| | - M Ogita
- Juntendo University Shizuoka Hospital, Cardiology, Izunokuni, Japan
| | - S Tsuboi
- Juntendo University Shizuoka Hospital, Cardiology, Izunokuni, Japan
| | - R Nishio
- Juntendo University Shizuoka Hospital, Cardiology, Izunokuni, Japan
| | - K Yasuda
- Juntendo University Shizuoka Hospital, Cardiology, Izunokuni, Japan
| | - M Takeuchi
- Juntendo University Shizuoka Hospital, Cardiology, Izunokuni, Japan
| | - T Iso
- Juntendo University Shizuoka Hospital, Cardiology, Izunokuni, Japan
| | - T Sonoda
- Juntendo University Shizuoka Hospital, Cardiology, Izunokuni, Japan
| | - S Yatsu
- Juntendo University Shizuoka Hospital, Cardiology, Izunokuni, Japan
| | - H Wada
- Juntendo University Shizuoka Hospital, Cardiology, Izunokuni, Japan
| | - T Shiozawa
- Juntendo University Shizuoka Hospital, Cardiology, Izunokuni, Japan
| | - T Dohi
- Juntendo University Graduate School of Medicine, Cardiovascular Medicine, Tokyo, Japan
| | - Y Yanagawa
- Juntendo University Shizuoka Hospital, Acute critical care medicine, Izunokuni, Japan
| | - S Suwa
- Juntendo University Shizuoka Hospital, Cardiology, Izunokuni, Japan
| | - H Daida
- Juntendo University Graduate School of Medicine, Cardiovascular Medicine, Tokyo, Japan
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24
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Muraji S, Sumitomo N, Imamura T, Yasuda K, Nishihara E, Iwamoto M, Tateno S, Doi S, Hata T, Kogaki S, Horigome H, Ohno S, Ichida F, Nagashima M, Yoshinaga M. P4654Clinical and electrocardiographic features of restrictive cardiomyopathy in children. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz745.1036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Introduction
Restrictive cardiomyopathy (RCM) is a rare myocardial disease with an impaired diastolic function and poor prognosis. The mean survival duration after a diagnosis of RCM is reported to be around 2 years in children and most need heart transplantations.
Purpose
This study aimed to determine the 12-lead electrocardiogram (ECG) diagnostic criteria of RCM based on the initial diagnostic electrocardiogram.
Methods
ECGs in pediatric cardiomyopathy patients were collected from 15 institutes in Japan between 1979 and 2013. We compared the ECG findings, especially of the P wave, in RCM patients between the cardiomyopathy group and healthy children group separately for each gender and the age. The ECGs in the healthy group were obtained from school heart screening in Japan of first-graders, and seventh-graders. Statistical significance was determined as p<0.001.
Results
Among 376 registered cardiomyopathy patients, 63 had hypertrophic cardiomyopathy (HCM) (36%), 91 (24%) dilated cardiomyopathy (DCM), 106 (28%) a left ventricular myocardial noncompaction (LVNCs), 25 (7%) restrictive cardiomyopathy (RCM), 14 (4%) arrhythmogenic right ventricular cardiomyopathy (ARVC), and 5 (1%) other cardiomyopathies. Of the 25 RCM patients (9.9±3.4 years old, F:M=11:14), 36% were discovered during school heart screening. The first onset was an abnormal ECG in 9, symptoms of heart failure in 6, respiratory tract infections in 3, syncope in 1, and 6 with other. Of those patients, 2 (8%) had a family history of RCM, 24 (92%) no family history. A genetic diagnosis was performed in 5 of the 25 cases, and 3 had genetic abnormalities related to RCM. The mean follow-up period was 65±95 months (mean±standard deviation). During follow up, 19 patients (76%) survived, 6 (24%) died, 7 (28%) had heart transplantations, and 3 (12%) were waiting for heart transplantations with a left ventricular assist device.
The P wave was bimodal in lead I or biphasic in lead V1 in 15 patients (93%), and 13 (81%) patients had both variations. We evaluated the duration and amplitude of the first and second component of the P wave as P1 and P2. The number of control and RCM patients (control/RCM), duration of P1+P2, and sum total absolute value of the amplitude of P1+P2 in lead V1 were 8350/5, 90±9/116±10ms, and 72±28/528±278μV in first grade boys, 8423/3, 91±10/120±22ms, and 66±28/326±229μV in first grade girls, 8943/1, 97±1/100ms, and 71±31/328μV in seventh grade boys, and 9183/5, 98±11/112±10ms, and 55±27/315±56μV in seventh grade girls. Although the number of patients in the RCM group was small, sum total absolute value of the amplitude of P1+P2 in lead V1 showed a significant difference in any group.
Conclusion
The ECG in children with RCM exhibits P wave abnormalities in almost all patients. In particular, not the P wave interval but P wave shape in I and V1 and the sum total absolute value of the amplitude of P1+P2 in lead V1 were observed differences.
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Affiliation(s)
- S Muraji
- Saitama International Medical Center, Pediatric cardiology, Hidaka, Japan
| | - N Sumitomo
- Saitama International Medical Center, Pediatric cardiology, Hidaka, Japan
| | - T Imamura
- Saitama International Medical Center, Pediatric cardiology, Hidaka, Japan
| | - K Yasuda
- Aichi Children's Medical Center, Cardiology, Obu, Japan
| | - E Nishihara
- Ogaki Municipal Hospital, Pediatric Cardiology, Ogaki, Japan
| | - M Iwamoto
- Saiseikai Yokohama City Eastern Hospital, Pediatrics, Yokohama, Japan
| | - S Tateno
- Chiba Cerebral and Cardiovascular Center, Pediatrics, Chiba, Japan
| | - S Doi
- Tokyo Medical and Dental University, Pediatrics, Tokyo, Japan
| | - T Hata
- Fujita Health University, Toyoake, Japan
| | - S Kogaki
- Osaka General Medical Center, Pediatrics, Osaka, Japan
| | - H Horigome
- Ibaraki Children's Hospital, Pediatric Cardiology, Mito, Japan
| | - S Ohno
- National Cerebral and Cardiovascular Center, Bioscience and Genetics, Osaka, Japan
| | - F Ichida
- University of Toyama, Toyama, Japan
| | - M Nagashima
- Aichi Saiseikai Rehabilitation Hospital, Nagoya, Japan
| | - M Yoshinaga
- National Hospital Organization Kagoshima Medical Center, Pediatrics, Kagoshima, Japan
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25
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Yasuda K, Tsukazaki A, Yoshimi R, Takahashi KS, Kawasaki M, Tokura Y. Erratum: Large Unidirectional Magnetoresistance in a Magnetic Topological Insulator [Phys. Rev. Lett. 117, 127202 (2016)]. Phys Rev Lett 2019; 122:159903. [PMID: 31050523 DOI: 10.1103/physrevlett.122.159903] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2019] [Indexed: 06/09/2023]
Abstract
This corrects the article DOI: 10.1103/PhysRevLett.117.127202.
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26
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Morita K, Tsuka H, Kuremoto KI, Kimura H, Kawano H, Yokoi M, Yasuda K, Yoshida M, Tsuga K. Association between buccal mucosa ridging and oral feature/symptom and its effects on occlusal function among dentate young adults in a cross-sectional study of Japan. Cranio 2019; 39:24-28. [PMID: 30777516 DOI: 10.1080/08869634.2019.1581471] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
Objective: The purpose of this study was to assess the distinction in oral features/symptoms and occlusal function between young dentate individuals with and without buccal mucosa ridging (BMR). Methods: This cross-sectional study included 200 young adults. The outcome variable was BMR state. The predictor variables were oral features/symptoms (torus palatinus, torus mandibularis, temporomandibular joint noise, bruxism, tongue thrusting habit, number of teeth present, and occlusal vertical dimension) and oral function (occlusal force, occlusal contact area, occlusal pressure, tongue pressure). These variables were compared among participants with and without BMR using univariate and multiple logistic regression analysis. Results: There were 119 participants with BMR and 81 without BMR. Multiple logistic regression analysis revealed that BMR was closely associated with bruxism, occlusal vertical dimension, and occlusal pressure. Discussion: Oral/occlusal changes of increased bruxism, lower occlusal vertical dimension, and lower occlusal pressure constitute the major causes of BMR.
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Affiliation(s)
- Koji Morita
- Department of Advanced Prosthodontics, Hiroshima University Graduate School of Biomedical & Health Sciences , Hiroshima, Japan
| | - Hiroki Tsuka
- Department of Advanced Prosthodontics, Hiroshima University Graduate School of Biomedical & Health Sciences , Hiroshima, Japan
| | - Ko-Ichi Kuremoto
- Department of Advanced Prosthodontics, Hiroshima University Graduate School of Biomedical & Health Sciences , Hiroshima, Japan
| | - Hitomi Kimura
- Oral Implant Center, Tokushima University Hospital , Tokushima, Japan
| | - Hiromichi Kawano
- Oral Implant Center, Tokushima University Hospital , Tokushima, Japan
| | - Miyuki Yokoi
- Department of Advanced Prosthodontics, Hiroshima University Graduate School of Biomedical & Health Sciences , Hiroshima, Japan
| | - Keisuke Yasuda
- Department of Advanced Prosthodontics, Hiroshima University Graduate School of Biomedical & Health Sciences , Hiroshima, Japan
| | - Mitsuyoshi Yoshida
- Department of Advanced Prosthodontics, Hiroshima University Graduate School of Biomedical & Health Sciences , Hiroshima, Japan
| | - Kazuhiro Tsuga
- Department of Advanced Prosthodontics, Hiroshima University Graduate School of Biomedical & Health Sciences , Hiroshima, Japan
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Yoshimi R, Yasuda K, Tsukazaki A, Takahashi KS, Kawasaki M, Tokura Y. Current-driven magnetization switching in ferromagnetic bulk Rashba semiconductor (Ge,Mn)Te. Sci Adv 2018; 4:eaat9989. [PMID: 30539144 PMCID: PMC6286171 DOI: 10.1126/sciadv.aat9989] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/26/2018] [Accepted: 11/06/2018] [Indexed: 06/09/2023]
Abstract
Multiferroic materials with both ferroelectric and ferromagnetic orders provide a promising arena for the electrical manipulation of magnetization through the mutual correlation between those ferroic orders. Such a concept of multiferroics may expand to semiconductor with both broken symmetries of spatial inversion and time reversal, that is, polar ferromagnetic semiconductors. Here, we report the observation of current-driven magnetization switching in one such example, (Ge,Mn)Te thin films. The ferromagnetism caused by Mn doping opens an exchange gap in original massless Dirac band of the polar semiconductor GeTe with Rashba-type spin-split bands. The anomalous Hall conductivity is enhanced with increasing hole carrier density, indicating that the contribution of the Berry phase is maximized as the Fermi level approaches the exchange gap. By means of pulse-current injection, the electrical switching of the magnetization is observed in the (Ge,Mn)Te thin films as thick as 200 nm, pointing to the Rashba-Edelstein effect of bulk origin. The efficiency of this effect strongly depends on the Fermi-level position owing to the efficient spin accumulation at around the gap. The magnetic bulk Rashba system will be a promising platform for exploring the functional correlations among electric polarization, magnetization, and current.
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Affiliation(s)
- R. Yoshimi
- RIKEN Center for Emergent Matter Science (CEMS), Wako 351-0198, Japan
| | - K. Yasuda
- Department of Applied Physics and Quantum-Phase Electronics Center (QPEC), University of Tokyo, Tokyo 113-8656, Japan
| | - A. Tsukazaki
- Institute for Materials Research, Tohoku University, Sendai 980-8577, Japan
| | - K. S. Takahashi
- RIKEN Center for Emergent Matter Science (CEMS), Wako 351-0198, Japan
- PRESTO, Japan Science and Technology Agency, Chiyoda-ku, Tokyo 102-0075, Japan
| | - M. Kawasaki
- RIKEN Center for Emergent Matter Science (CEMS), Wako 351-0198, Japan
- Department of Applied Physics and Quantum-Phase Electronics Center (QPEC), University of Tokyo, Tokyo 113-8656, Japan
| | - Y. Tokura
- RIKEN Center for Emergent Matter Science (CEMS), Wako 351-0198, Japan
- Department of Applied Physics and Quantum-Phase Electronics Center (QPEC), University of Tokyo, Tokyo 113-8656, Japan
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Kotani D, Kuboki Y, Yasuda K, Nakamura Y, Kawazoe A, Bando H, Taniguchi H, Shitara K, Yoshino T. Safety and efficacy of trifluridine/tipiracil (TAS-102) plus bevacizumab in clinical practice for patients with refractory metastatic colorectal cancer. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy431.020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Yasuda K, Takao S, Matsuo Y, Yoshimura T, Tamura M, Minatogawa H, Dekura Y, Matsuura T, Onimaru R, Shiga T, Shimizu S, Umegaki K, Shirato H. Intensity-Modulated Proton Therapy with Dose Painting based on Hypoxia Imaging for Nasopharyngeal Cancer. Int J Radiat Oncol Biol Phys 2018. [DOI: 10.1016/j.ijrobp.2018.07.1125] [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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30
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Onimaru R, Mori T, Yasuda K, Shirato H. Preliminary Study of Cell Survival Modelling Considering Stochastic Fluctuations in Cell Survival Rates During Radiation Therapy. Int J Radiat Oncol Biol Phys 2018. [DOI: 10.1016/j.ijrobp.2018.07.1035] [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: 10/28/2022]
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31
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Fujima N, Hirata K, Shiga T, Li R, Yasuda K, Onimaru R, Tsuchiya K, Kano S, Mizumachi T, Homma A, Kudo K, Shirato H. Integrating quantitative morphological and intratumoural textural characteristics in FDG-PET for the prediction of prognosis in pharynx squamous cell carcinoma patients. Clin Radiol 2018; 73:1059.e1-1059.e8. [PMID: 30245069 DOI: 10.1016/j.crad.2018.08.011] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2018] [Accepted: 08/24/2018] [Indexed: 12/15/2022]
Abstract
AIM To assess potential prognostic factors in pharynx squamous cell carcinoma (SCC) patients by quantitative morphological and intratumoural characteristics obtained by 2-[18F]-fluoro-2-deoxy-d-glucose positron-emission tomography/computed tomography (FDG-PET/CT). MATERIALS AND METHODS The cases of 54 patients with pharynx SCC who underwent chemoradiation therapy were analysed retrospectively. Using their FDG-PET data, the quantitative morphological and intratumoural characteristics of 14 parameters were calculated. The progression-free survival (PFS) and overall survival (OS) information was obtained from patient medical records. Univariate and multivariate analyses were performed to assess the 14 quantitative parameters as well as the T-stage, N-stage, and tumour location data for their relation to PFS and OS. When an independent predictor was suggested in the multivariate analysis, the parameter was further assessed using the Kaplan-Meier method. RESULTS In the assessment of PFS, the univariate and multivariate analyses indicated the following as independent predictors: the texture parameter of homogeneity and the morphological parameter of sphericity. In the Kaplan-Meier analysis, the PFS rate was significantly improved in the patients who had both a higher value of homogeneity (p=0.01) and a higher value of sphericity (p=0.002). With the combined use of homogeneity and sphericity, the patients with different PFS rates could be divided more clearly. CONCLUSION The quantitative parameters of homogeneity and sphericity obtained by FDG-PET can be useful for the prediction of the PFS of pharynx SCC patients, especially when used in combination.
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Affiliation(s)
- N Fujima
- Department of Diagnostic and Interventional Radiology, Hokkaido University Hospital, N14 W5, Kita-Ku, Sapporo 0608638, Japan.
| | - K Hirata
- Department of Nuclear Medicine, Hokkaido University Graduate School of Medicine, N15 W7, Kita-Ku, Sapporo 0608638, Japan
| | - T Shiga
- Department of Nuclear Medicine, Hokkaido University Graduate School of Medicine, N15 W7, Kita-Ku, Sapporo 0608638, Japan
| | - R Li
- Department of Radiation Oncology, Stanford University, 875 Blake Wilbur Drive, Stanford, CA 94305-5847, USA; The Global Station for Quantum Medical Science and Engineering, Global Institution for Collaborative Research and Education, N15 W8, Kita-Ku, Sapporo 0608638, Japan
| | - K Yasuda
- The Global Station for Quantum Medical Science and Engineering, Global Institution for Collaborative Research and Education, N15 W8, Kita-Ku, Sapporo 0608638, Japan; Department of Radiation Medicine, Hokkaido University Graduate School of Medicine, N15 W7, Kita-Ku, Sapporo 0608638, Japan
| | - R Onimaru
- Department of Radiation Medicine, Hokkaido University Graduate School of Medicine, N15 W7, Kita-Ku, Sapporo 0608638, Japan
| | - K Tsuchiya
- Department of Radiation Oncology, Otaru General Hospital, Wakamatsu1-1-1, Otaru 0478550, Japan
| | - S Kano
- Department of Otolaryngology-Head and Neck Surgery, Hokkaido University Graduate School of Medicine, N15 W7, Kita-Ku, Sapporo 0608638, Japan
| | - T Mizumachi
- Department of Otolaryngology-Head and Neck Surgery, Hokkaido University Graduate School of Medicine, N15 W7, Kita-Ku, Sapporo 0608638, Japan
| | - A Homma
- Department of Otolaryngology-Head and Neck Surgery, Hokkaido University Graduate School of Medicine, N15 W7, Kita-Ku, Sapporo 0608638, Japan
| | - K Kudo
- Department of Diagnostic and Interventional Radiology, Hokkaido University Hospital, N14 W5, Kita-Ku, Sapporo 0608638, Japan
| | - H Shirato
- The Global Station for Quantum Medical Science and Engineering, Global Institution for Collaborative Research and Education, N15 W8, Kita-Ku, Sapporo 0608638, Japan; Department of Radiation Medicine, Hokkaido University Graduate School of Medicine, N15 W7, Kita-Ku, Sapporo 0608638, Japan
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Imai Y, Nagai M, Kusakabe M, Yasuda K, Nakanishi K, Yoshimoto T, Yamanishi K. 902 Ablation of basophils reduces ILC2-dependent atopic dermatitis-like inflammation in mice overexpressing interleukin-33 in the skin. J Invest Dermatol 2018. [DOI: 10.1016/j.jid.2018.03.914] [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: 10/17/2022]
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33
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Goto A, Noda M, Goto M, Yasuda K, Mizoue T, Yamaji T, Sawada N, Iwasaki M, Inoue M, Tsugane S. Predictive performance of a genetic risk score using 11 susceptibility alleles for the incidence of Type 2 diabetes in a general Japanese population: a nested case-control study. Diabet Med 2018; 35:602-611. [PMID: 29444352 DOI: 10.1111/dme.13602] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 02/09/2018] [Indexed: 01/05/2023]
Abstract
AIMS To assess the predictive ability of a genetic risk score for the incidence of Type 2 diabetes in a general Japanese population. METHODS This prospective case-control study, nested within a Japan Public Health Centre-based prospective study, included 466 participants with incident Type 2 diabetes over a 5-year period (cases) and 1361 control participants, as well as 1463 participants with existing diabetes and 1463 control participants. Eleven susceptibility single nucleotide polymorphisms, identified through genome-wide association studies and replicated in Japanese populations, were analysed. RESULTS Most single nucleotide polymorphism loci showed directionally consistent associations with diabetes. From the combined samples, one single nucleotide polymorphism (rs2206734 at CDKAL1) reached a genome-wide significance level (odds ratio 1.28, 95% CI 1.18-1.40; P = 1.8 × 10-8 ). Three single nucleotide polymorphisms (rs2206734 in CDKAL1, rs2383208 in CDKN2A/B, and rs2237892 in KCNQ1) were nominally significantly associated with incident diabetes. Compared with the lowest quintile of the total number of risk alleles, the highest quintile had a higher odds of incident diabetes (odds ratio 2.34, 95% CI 1.59-3.46) after adjusting for conventional risk factors such as age, sex and BMI. The addition to the conventional risk factor-based model of a genetic risk score using the 11 single nucleotide polymorphisms significantly improved predictive performance; the c-statistic increased by 0.021, net reclassification improved by 6.2%, and integrated discrimination improved by 0.003. CONCLUSIONS Our prospective findings suggest that the addition of a genetic risk score may provide modest but significant incremental predictive performance beyond that of the conventional risk factor-based model without biochemical markers.
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Affiliation(s)
- A Goto
- Epidemiology and Prevention Group, Centre for Public Health Sciences, National Cancer Centre, Tokyo
| | - M Noda
- Department of Endocrinology and Diabetes, Saitama Medical University, Saitama
| | - M Goto
- Department of Diabetes and Endocrinology, JCHO Tokyo Yamate Medical Centre, Tokyo
| | - K Yasuda
- Department of Metabolic Disorder, Diabetes Research Centre, National Centre for Global Health and Medicine, Tokyo, Japan
| | - T Mizoue
- Department of Epidemiology and Prevention, National Centre for Global Health and Medicine, Tokyo, Japan
| | - T Yamaji
- Epidemiology and Prevention Group, Centre for Public Health Sciences, National Cancer Centre, Tokyo
| | - N Sawada
- Epidemiology and Prevention Group, Centre for Public Health Sciences, National Cancer Centre, Tokyo
| | - M Iwasaki
- Epidemiology and Prevention Group, Centre for Public Health Sciences, National Cancer Centre, Tokyo
| | - M Inoue
- Epidemiology and Prevention Group, Centre for Public Health Sciences, National Cancer Centre, Tokyo
| | - S Tsugane
- Epidemiology and Prevention Group, Centre for Public Health Sciences, National Cancer Centre, Tokyo
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Yasuda K, Mogi M, Yoshimi R, Tsukazaki A, Takahashi KS, Kawasaki M, Kagawa F, Tokura Y. Quantized chiral edge conduction on domain walls of a magnetic topological insulator. Science 2018; 358:1311-1314. [PMID: 29217573 DOI: 10.1126/science.aan5991] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2017] [Accepted: 10/24/2017] [Indexed: 11/02/2022]
Abstract
Electronic ordering in magnetic and dielectric materials forms domains with different signs of order parameters. The control of configuration and motion of the domain walls (DWs) enables nonvolatile responses against minute external fields. Here, we realize chiral edge states (CESs) on the magnetic DWs of a magnetic topological insulator. We design and fabricate the magnetic domains in the quantum anomalous Hall state with the tip of a magnetic force microscope and prove the existence of the chiral one-dimensional edge conduction along the prescribed DWs through transport measurements. The proof-of-concept devices based on reconfigurable CESs and Landauer-Büttiker formalism are realized for multiple-domain configurations with well-defined DW channels. Our results may lead to the realization of low-power-consumption spintronic devices.
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Affiliation(s)
- K Yasuda
- Department of Applied Physics and Quantum-Phase Electronics Center (QPEC), University of Tokyo, Tokyo 113-8656, Japan
| | - M Mogi
- Department of Applied Physics and Quantum-Phase Electronics Center (QPEC), University of Tokyo, Tokyo 113-8656, Japan
| | - R Yoshimi
- RIKEN Center for Emergent Matter Science (CEMS), Wako 351-0198, Japan
| | - A Tsukazaki
- Institute for Materials Research, Tohoku University, Sendai 980-8577, Japan
| | - K S Takahashi
- RIKEN Center for Emergent Matter Science (CEMS), Wako 351-0198, Japan.,Precursory Research for Embryonic Science and Technology (PRESTO), Japan Science and Technology Agency, Chiyoda-ku, Tokyo 102-0075, Japan
| | - M Kawasaki
- Department of Applied Physics and Quantum-Phase Electronics Center (QPEC), University of Tokyo, Tokyo 113-8656, Japan.,RIKEN Center for Emergent Matter Science (CEMS), Wako 351-0198, Japan
| | - F Kagawa
- RIKEN Center for Emergent Matter Science (CEMS), Wako 351-0198, Japan
| | - Y Tokura
- Department of Applied Physics and Quantum-Phase Electronics Center (QPEC), University of Tokyo, Tokyo 113-8656, Japan.,RIKEN Center for Emergent Matter Science (CEMS), Wako 351-0198, Japan
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35
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Yoshioka S, Tsuruta K, Yamamoto T, Yasuda K, Matsumura S, Ishikawa N, Kobayashi E. X-ray absorption near edge structure and first-principles spectral investigations of cationic disorder in MgAl 2O 4 induced by swift heavy ions. Phys Chem Chem Phys 2018; 20:4962-4969. [PMID: 29387834 DOI: 10.1039/c7cp07591j] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Cationic disorder in the MgAl2O4 spinel induced by swift heavy ions was investigated using the X-ray absorption near edge structure. With changes in the irradiation fluences of 200 MeV Xe ions, the Mg K-edge and Al K-edge spectra were synchronously changed. The calculated spectra based on density function theory indicate that the change in the experimental spectra was due to cationic disorder between Mg in tetrahedral sites and Al in octahedral sites. These results suggest a high inversion degree to an extent that the completely random configuration is achieved in MgAl2O4 induced by the high density electronic excitation under swift heavy ion irradiation.
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Affiliation(s)
- S Yoshioka
- Department of Applied Quantum Physics and Nuclear Engineering, Kyushu University, Fukuoka, 819-0395, Japan.
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36
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Yasuda K, Fukuda S, Nakamura M, Takata M, Kuwata Y, Sainouchi M, Kawarazaki S, Murase N, Ohtani R, Aoki T, Yonemoto N, Akao M, Tsukahata T. Predictors for cardioembolic stroke in Japanese patients with atrial fibrillation: The Fushimi AF Registry. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.3176] [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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37
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Yasuda K, Tsukazaki A, Yoshimi R, Kondou K, Takahashi KS, Otani Y, Kawasaki M, Tokura Y. Current-Nonlinear Hall Effect and Spin-Orbit Torque Magnetization Switching in a Magnetic Topological Insulator. Phys Rev Lett 2017; 119:137204. [PMID: 29341677 DOI: 10.1103/physrevlett.119.137204] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2017] [Indexed: 06/07/2023]
Abstract
The current-nonlinear Hall effect or second harmonic Hall voltage is widely used as one of the methods for estimating charge-spin conversion efficiency, which is attributed to the magnetization oscillation by spin-orbit torque (SOT). Here, we argue the second harmonic Hall voltage under a large in-plane magnetic field with an in-plane magnetization configuration in magnetic-nonmagnetic topological insulator (TI) heterostructures, Cr_{x}(Bi_{1-y}Sb_{y})_{2-x}Te_{3}/(Bi_{1-y}Sb_{y})_{2}Te_{3}, where it is clearly shown that the large second harmonic voltage is governed not by SOT but mainly by asymmetric magnon scattering without macroscopic magnetization oscillation. Thus, this method does not allow an accurate estimation of charge-spin conversion efficiency in TI. Instead, the SOT contribution is exemplified by current pulse induced nonvolatile magnetization switching, which is realized with a current density of 2.5×10^{10} A m^{-2}, showing its potential as a spintronic material.
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Affiliation(s)
- K Yasuda
- Department of Applied Physics and Quantum-Phase Electronics Center (QPEC), University of Tokyo, Tokyo 113-8656, Japan
| | - A Tsukazaki
- Institute for Materials Research, Tohoku University, Sendai 980-8577, Japan
| | - R Yoshimi
- RIKEN Center for Emergent Matter Science (CEMS), Wako 351-0198, Japan
| | - K Kondou
- RIKEN Center for Emergent Matter Science (CEMS), Wako 351-0198, Japan
| | - K S Takahashi
- RIKEN Center for Emergent Matter Science (CEMS), Wako 351-0198, Japan
- PRESTO, Japan Science and Technology Agency (JST), Chiyoda-ku, Tokyo, 102-0075, Japan
| | - Y Otani
- RIKEN Center for Emergent Matter Science (CEMS), Wako 351-0198, Japan
- Institute for Solid State Physics (ISSP), University of Tokyo, Kashiwa 277-8581, Japan
| | - M Kawasaki
- Department of Applied Physics and Quantum-Phase Electronics Center (QPEC), University of Tokyo, Tokyo 113-8656, Japan
- RIKEN Center for Emergent Matter Science (CEMS), Wako 351-0198, Japan
| | - Y Tokura
- Department of Applied Physics and Quantum-Phase Electronics Center (QPEC), University of Tokyo, Tokyo 113-8656, Japan
- RIKEN Center for Emergent Matter Science (CEMS), Wako 351-0198, Japan
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Yasuda K, Okazaki Y, Abe Y, Tsuga K. Effective UV/Ozone irradiation method for decontamination of hydroxyapatite surfaces. Heliyon 2017; 3:e00372. [PMID: 28795167 PMCID: PMC5542418 DOI: 10.1016/j.heliyon.2017.e00372] [Citation(s) in RCA: 5] [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] [Received: 04/05/2017] [Revised: 07/06/2017] [Accepted: 07/26/2017] [Indexed: 12/04/2022] Open
Abstract
The purpose of this study was to establish whether UV/ozone (O3) irradiation method can effectively decontaminate hydroxyapatite surfaces, including those modified by the treatment with 30% phosphoric acid solution through morphological and chemical surface analyses (surface roughness, X-ray photoelectron spectroscopy and wettability), and to evaluate the in vitro response of osteoblast-like MC3T3-E1 cells to the modified hydroxyapatite surface decontaminated via this method. The amount of carbon and the contact angle of hydroxyapatite surfaces were significantly decreased by UV/O3 irradiation that lasted for ≥ 5 and ≥ 3 min, respectively (P < 0.01). Additionally, 7-day storage of H3PO4-modified hydroxyapatite surface decontaminated with 5-min irradiation did not affect contact angle values (P > 0.05). MC3T3-E1 cell proliferation, differentiation (as assessed by relative ALP and OCN mRNA levels), and mineralisation were significantly promoted on irradiated surfaces (P < 0.05). These findings show that UV/O3 irradiation for ≥ 5 min significantly decontaminated H3PO4-modified hydroxyapatite surface, improved its wettability, and facilitated osteoblast growth and function.
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Affiliation(s)
- Keisuke Yasuda
- Department of Advanced Prosthodontics, Division of Dental Sciences, Biomedical Sciences Major, Graduate School of Biomedical & Health Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima 734-8553, Japan
| | - Yohei Okazaki
- Department of Advanced Prosthodontics, Division of Dental Sciences, Biomedical Sciences Major, Graduate School of Biomedical & Health Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima 734-8553, Japan
| | - Yasuhiko Abe
- Department of Advanced Prosthodontics, Division of Dental Sciences, Biomedical Sciences Major, Graduate School of Biomedical & Health Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima 734-8553, Japan
| | - Kazuhiro Tsuga
- Department of Advanced Prosthodontics, Division of Dental Sciences, Biomedical Sciences Major, Graduate School of Biomedical & Health Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima 734-8553, Japan
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Ejima T, Kado M, Aoyama M, Yasuda K, Tamotsu S. Organelle Distribution in a Hydrated Bio-cell by Correlation between Soft X-ray and Fluorescence Images. ACTA ACUST UNITED AC 2017. [DOI: 10.1088/1742-6596/849/1/012009] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Yasuda K, Hayashi Y, Yoshida T, Kashiwagi M, Nakagawa N, Michikawa T, Tanaka M, Ando R, Huang A, Hosoya T, McHugh TJ, Kuwahara M, Itohara S. Schizophrenia-like phenotypes in mice with NMDA receptor ablation in intralaminar thalamic nucleus cells and gene therapy-based reversal in adults. Transl Psychiatry 2017; 7:e1047. [PMID: 28244984 PMCID: PMC5545645 DOI: 10.1038/tp.2017.19] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/21/2016] [Accepted: 12/30/2016] [Indexed: 01/09/2023] Open
Abstract
In understanding the mechanism of schizophrenia pathogenesis, a significant finding is that drug abuse of phencyclidine or its analog ketamine causes symptoms similar to schizophrenia. Such drug effects are triggered even by administration at post-adolescent stages. Both drugs are N-methyl-d-aspartate receptor (NMDAR) antagonists, leading to a major hypothesis that glutamate hypofunction underlies schizophrenia pathogenesis. The precise region that depends on NMDAR function, however, is unclear. Here, we developed a mouse strain in which NMDARs in the intralaminar thalamic nuclei (ILN) were selectively disrupted. The mutant mice exhibited various schizophrenia-like phenotypes, including deficits in working memory, long-term spatial memory, and attention, as well as impulsivity, impaired prepulse inhibition, hyperlocomotion and hyperarousal. The electroencephalography analysis revealed that the mutant mice had a significantly reduced power in a wide range of frequencies including the alpha, beta and gamma bands, both during wake and rapid eye movement (REM) sleep, and a modest decrease of gamma power during non-REM sleep. Notably, restoring NMDARs in the adult ILN rescued some of the behavioral abnormalities. These findings suggest that NMDAR dysfunction in the ILN contributes to the pathophysiology of schizophrenia-related disorders. Furthermore, the reversal of inherent schizophrenia-like phenotypes in the adult mutant mice supports that ILN is a potential target site for a therapeutic strategy.
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Affiliation(s)
- K Yasuda
- Laboratory for Behavioral Genetics, RIKEN Brain Science Institute, Saitama, Japan,Department of Veterinary Pathophysiology and Animal Health, Graduate School of Agricultural and Life Science, The University of Tokyo, Tokyo, Japan
| | - Y Hayashi
- International Institute for Integrative Sleep Medicine (WPI-IIIS), University of Tsukuba, Ibaraki, Japan
| | - T Yoshida
- Laboratory for Behavioral Genetics, RIKEN Brain Science Institute, Saitama, Japan
| | - M Kashiwagi
- International Institute for Integrative Sleep Medicine (WPI-IIIS), University of Tsukuba, Ibaraki, Japan
| | - N Nakagawa
- Laboratory for Local Neuronal Circuits, RIKEN Brain Science Institute, Saitama, Japan
| | - T Michikawa
- Biotechnological Optics Research Team, RIKEN Center for Advanced Photonics, Saitama, Japan
| | - M Tanaka
- Laboratory for Neuron-Glia Circuitry, RIKEN Brain Science Institute, Saitama, Japan
| | - R Ando
- Laboratory for Behavioral Genetics, RIKEN Brain Science Institute, Saitama, Japan
| | - A Huang
- Laboratory for Circuit and Behavioral Physiology, RIKEN Brain Science Institute, Saitama, Japan
| | - T Hosoya
- Laboratory for Local Neuronal Circuits, RIKEN Brain Science Institute, Saitama, Japan
| | - T J McHugh
- Laboratory for Circuit and Behavioral Physiology, RIKEN Brain Science Institute, Saitama, Japan
| | - M Kuwahara
- Department of Veterinary Pathophysiology and Animal Health, Graduate School of Agricultural and Life Science, The University of Tokyo, Tokyo, Japan
| | - S Itohara
- Laboratory for Behavioral Genetics, RIKEN Brain Science Institute, Saitama, Japan,Laboratory for Behavioral Genetics, RIKEN Brain Science Institute, Neural Circuit Genetics Research Building 102k, 2-1 Wako, Saitama 351-0198, Japan. E-mail;
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Yasuda K, Tsukazaki A, Yoshimi R, Takahashi KS, Kawasaki M, Tokura Y. Large Unidirectional Magnetoresistance in a Magnetic Topological Insulator. Phys Rev Lett 2016; 117:127202. [PMID: 27689294 DOI: 10.1103/physrevlett.117.127202] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/02/2016] [Indexed: 06/06/2023]
Abstract
We report current-direction dependent or unidirectional magnetoresistance (UMR) in magnetic or nonmagnetic topological insulator (TI) heterostructures, Cr_{x}(Bi_{1-y}Sb_{y})_{2-x}Te_{3}/(Bi_{1-y}Sb_{y})_{2}Te_{3}, that is several orders of magnitude larger than in other reported systems. From the magnetic field and temperature dependence, the UMR is identified to originate from the asymmetric scattering of electrons by magnons. In particular, the large magnitude of UMR is an outcome of spin-momentum locking and a small Fermi wave number at the surface of TI. In fact, the UMR is maximized around the Dirac point with the minimal Fermi wave number.
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Affiliation(s)
- K Yasuda
- Department of Applied Physics and Quantum-Phase Electronics Center (QPEC), University of Tokyo, Tokyo 113-8656, Japan
| | - A Tsukazaki
- Institute for Materials Research, Tohoku University, Sendai 980-8577, Japan
| | - R Yoshimi
- RIKEN Center for Emergent Matter Science (CEMS), Wako 351-0198, Japan
| | - K S Takahashi
- RIKEN Center for Emergent Matter Science (CEMS), Wako 351-0198, Japan
| | - M Kawasaki
- Department of Applied Physics and Quantum-Phase Electronics Center (QPEC), University of Tokyo, Tokyo 113-8656, Japan
- RIKEN Center for Emergent Matter Science (CEMS), Wako 351-0198, Japan
| | - Y Tokura
- Department of Applied Physics and Quantum-Phase Electronics Center (QPEC), University of Tokyo, Tokyo 113-8656, Japan
- RIKEN Center for Emergent Matter Science (CEMS), Wako 351-0198, Japan
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Takaki S, Yasuda K, Yamamoto T, Matsumura S, Ishikawa N. Structure of ion tracks in ceria irradiated with high energy xenon ions. Progress in Nuclear Energy 2016. [DOI: 10.1016/j.pnucene.2016.07.013] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Anzai H, Hata K, Kishikawa J, Ishii H, Yasuda K, Otani K, Nishikawa T, Tanaka T, Kiyomatsu T, Kawai K, Nozawa H, Kazama S, Yamaguchi H, Ishihara S, Sunami E, Watanabe T. Appendiceal orifice inflammation is associated with proximal extension of disease in patients with ulcerative colitis. Colorectal Dis 2016; 18:O278-82. [PMID: 27354363 DOI: 10.1111/codi.13435] [Citation(s) in RCA: 52] [Impact Index Per Article: 6.5] [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: 12/13/2015] [Accepted: 04/28/2016] [Indexed: 12/24/2022]
Abstract
AIM Ulcerative colitis (UC) is considered to be a disease of continuous mucosal inflammation extending proximally from the rectum. However, appendiceal orifice inflammation (AOI) is a skip lesion with segments of continuous involvement from the rectum. The aim of this study was to examine the clinical characteristics and clinical course, particularly focused on proximal extension, of UC in patients with AOI. METHOD A retrospective evaluation of patients with UC who underwent total colonoscopy at the Department of Surgical Oncology, The University of Tokyo, from 2004 to 2014. The degree of AOI was graded endoscopically as follows: 0 (no inflammation); 1 (slight oedema); 2 (moderate inflammation); and 3 (marked inflammation). A total of 189 patient records were reviewed retrospectively. The presence of AOI was analysed with regard to the clinical information of each patient, and its association with proximal extension of proctitis or left-sided colitis was evaluated. RESULTS Of 189 patients with UC who underwent total colonoscopy at our institution, 92 were diagnosed with pancolitis, 50 with left-sided colitis and 47 with proctitis. Endoscopic findings of AOI were observed in 26 patients, including 11 (12.0%) with pancolitis, six (12.0%) with left-sided colitis and nine (19.1%) with proctitis. During follow up, proximal extension of the disease occurred in all nine patients with proctitis AOI. CONCLUSION AOI is more frequently observed in patients with proctitis. Our results showed correlations between AOI and subsequent proximal extension of mucosal inflammation in patients with proctitis.
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Affiliation(s)
- H Anzai
- Department of Surgical Oncology, The University of Tokyo, Tokyo, Japan
| | - K Hata
- Department of Surgical Oncology, The University of Tokyo, Tokyo, Japan
| | - J Kishikawa
- Department of Surgical Oncology, The University of Tokyo, Tokyo, Japan
| | - H Ishii
- Department of Surgical Oncology, The University of Tokyo, Tokyo, Japan
| | - K Yasuda
- Department of Surgical Oncology, The University of Tokyo, Tokyo, Japan
| | - K Otani
- Department of Surgical Oncology, The University of Tokyo, Tokyo, Japan
| | - T Nishikawa
- Department of Surgical Oncology, The University of Tokyo, Tokyo, Japan
| | - T Tanaka
- Department of Surgical Oncology, The University of Tokyo, Tokyo, Japan
| | - T Kiyomatsu
- Department of Surgical Oncology, The University of Tokyo, Tokyo, Japan
| | - K Kawai
- Department of Surgical Oncology, The University of Tokyo, Tokyo, Japan
| | - H Nozawa
- Department of Surgical Oncology, The University of Tokyo, Tokyo, Japan
| | - S Kazama
- Department of Surgical Oncology, The University of Tokyo, Tokyo, Japan
| | - H Yamaguchi
- Department of Surgical Oncology, The University of Tokyo, Tokyo, Japan
| | - S Ishihara
- Department of Surgical Oncology, The University of Tokyo, Tokyo, Japan
| | - E Sunami
- Department of Surgical Oncology, The University of Tokyo, Tokyo, Japan
| | - T Watanabe
- Department of Surgical Oncology, The University of Tokyo, Tokyo, Japan
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Ogawa N, Yoshimi R, Yasuda K, Tsukazaki A, Kawasaki M, Tokura Y. Zero-bias photocurrent in ferromagnetic topological insulator. Nat Commun 2016; 7:12246. [PMID: 27435028 PMCID: PMC4961789 DOI: 10.1038/ncomms12246] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [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: 07/14/2015] [Accepted: 06/16/2016] [Indexed: 11/13/2022] Open
Abstract
Magnetic interactions in topological insulators cause essential modifications in the originally mass-less surface states. They offer a mass gap at the Dirac point and/or largely deform the energy dispersion, providing a new path towards exotic physics and applications to realize dissipation-less electronics. The nonequilibrium electron dynamics at these modified Dirac states unveil additional functions, such as highly efficient photon to spin-current conversion. Here we demonstrate the generation of large zero-bias photocurrent in magnetic topological insulator thin films on mid-infrared photoexcitation, pointing to the controllable band asymmetry in the momentum space. The photocurrent spectra with a maximal response to the intra-Dirac-band excitations can be a sensitive measure for the correlation between Dirac electrons and magnetic moments. By magnetic-doping, the electronic band structure of a topological insulator can be significantly altered to yield functional behaviour. Here, the authors demonstrate a large photocurrent response, and its control, under zero-bias in an optimally-designed magnetically-doped topological insulator thin film.
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Affiliation(s)
- N Ogawa
- RIKEN Center for Emergent Matter Science (CEMS), Wako, Saitama 351-0198, Japan
| | - R Yoshimi
- Department of Applied Physics and Quantum-Phase Electronics Center (QPEC), University of Tokyo, Tokyo 113-8656, Japan
| | - K Yasuda
- Department of Applied Physics and Quantum-Phase Electronics Center (QPEC), University of Tokyo, Tokyo 113-8656, Japan
| | - A Tsukazaki
- Institute for Materials Research, Tohoku University, Sendai 980-8577, Japan
| | - M Kawasaki
- RIKEN Center for Emergent Matter Science (CEMS), Wako, Saitama 351-0198, Japan.,Department of Applied Physics and Quantum-Phase Electronics Center (QPEC), University of Tokyo, Tokyo 113-8656, Japan
| | - Y Tokura
- RIKEN Center for Emergent Matter Science (CEMS), Wako, Saitama 351-0198, Japan.,Department of Applied Physics and Quantum-Phase Electronics Center (QPEC), University of Tokyo, Tokyo 113-8656, Japan
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45
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Fushimi K, Ejiri H, Hazama R, Ikeda H, Imagawa K, Inoue K, Kanzaki G, Kozlov A, Orito R, Shima T, Takemoto Y, Teraoka Y, Umehara S, Yasuda K, Yoshida S. Dark matter search project PICO-LON. ACTA ACUST UNITED AC 2016. [DOI: 10.1088/1742-6596/718/4/042022] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Nagata C, Konish K, Tamura T, Wada K, Hayashi M, Takeda N, Yasuda K. Skin pigmentation is inversely associated with insulin resistance in healthy Japanese women. Diabetes Metab 2016; 42:368-371. [PMID: 27161346 DOI: 10.1016/j.diabet.2016.04.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/09/2016] [Revised: 03/30/2016] [Accepted: 04/01/2016] [Indexed: 10/21/2022]
Abstract
AIM As a low-pigment skin type is prevalent in men and women with type 1 diabetes, it is possible that skin pigmentation may be associated with insulin resistance. This study aimed to cross-sectionally examine this association in healthy women. METHODS Study participants were 792 Japanese women who attended a health examination and were not taking any medication for diabetes. Skin pigmentation on the inner upper and lower arms and forehead was measured using a Mexameter® skin colorimeter, a narrow-band reflective spectrophotometer. Data are expressed as a melanin index, which quantifies melanin content. Fasting blood glucose and insulin levels were also measured, and homoeostasis model assessment for insulin resistance (HOMA-IR) scores were calculated. Information on medical history and lifestyle factors were obtained by a self-administered questionnaire, while data on sun exposure were collected through interviews. Plasma 25-hydroxyvitamin D levels were measured in a subsample of women (n=464). RESULTS Melanin indices at the inner upper and lower arms were significantly and inversely associated with fasting insulin levels and HOMA-IR after controlling for age, body mass index, smoking status, indicators for rater effects, cumulative sun exposure and season at the time of measurement. Additional adjustment for plasma 25-hydroxyvitamin D levels did not alter the results. CONCLUSION These data suggest that skin pigmentation is associated with insulin resistance, and encourage future studies into the potential role of melanin and related factors in glucose homoeostasis.
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Affiliation(s)
- C Nagata
- Department of Epidemiology & Preventive Medicine, Gifu University Graduate School of Medicine, Gifu 500-1194, Japan.
| | - K Konish
- Department of Epidemiology & Preventive Medicine, Gifu University Graduate School of Medicine, Gifu 500-1194, Japan
| | - T Tamura
- Department of Epidemiology & Preventive Medicine, Gifu University Graduate School of Medicine, Gifu 500-1194, Japan
| | - K Wada
- Department of Epidemiology & Preventive Medicine, Gifu University Graduate School of Medicine, Gifu 500-1194, Japan
| | - M Hayashi
- Department of Internal Medicine, Matsunami General Hospital, Gifu 501-6062, Japan
| | - N Takeda
- Department of Endocrinology and Metabolism, Murakami Memorial Hospital, Asahi University, Gifu 501-0233, Japan
| | - K Yasuda
- Department of Internal Medicine, Matsunami General Hospital, Gifu 501-6062, Japan
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Adachi N, Adamovitch V, Adjovi Y, Aida K, Akamatsu H, Akiyama S, Akli A, Ando A, Andrault T, Antonietti H, Anzai S, Arkoun G, Avenoso C, Ayrault D, Banasiewicz M, Banaśkiewicz M, Bernardini L, Bernard E, Berthet E, Blanchard M, Boreyko D, Boros K, Charron S, Cornette P, Czerkas K, Dameron M, Date I, De Pontbriand M, Demangeau F, Dobaczewski Ł, Dobrzyński L, Ducouret A, Dziedzic M, Ecalle A, Edon V, Endo K, Endo T, Endo Y, Etryk D, Fabiszewska M, Fang S, Fauchier D, Felici F, Fujiwara Y, Gardais C, Gaul W, Gurin L, Hakoda R, Hamamatsu I, Handa K, Haneda H, Hara T, Hashimoto M, Hashimoto T, Hashimoto K, Hata D, Hattori M, Hayano R, Hayashi R, Higasi H, Hiruta M, Honda A, Horikawa Y, Horiuchi H, Hozumi Y, Ide M, Ihara S, Ikoma T, Inohara Y, Itazu M, Ito A, Janvrin J, Jout I, Kanda H, Kanemori G, Kanno M, Kanomata N, Kato T, Kato S, Katsu J, Kawasaki Y, Kikuchi K, Kilian P, Kimura N, Kiya M, Klepuszewski M, Kluchnikov E, Kodama Y, Kokubun R, Konishi F, Konno A, Kontsevoy V, Koori A, Koutaka A, Kowol A, Koyama Y, Kozioł M, Kozue M, Kravtchenko O, Kruczała W, Kudła M, Kudo H, Kumagai R, Kurogome K, Kurosu A, Kuse M, Lacombe A, Lefaillet E, Magara M, Malinowska J, Malinowski M, Maroselli V, Masui Y, Matsukawa K, Matsuya K, Matusik B, Maulny M, Mazur P, Miyake C, Miyamoto Y, Miyata K, Miyata K, Miyazaki M, Molȩda M, Morioka T, Morita E, Muto K, Nadamoto H, Nadzikiewicz M, Nagashima K, Nakade M, Nakayama C, Nakazawa H, Nihei Y, Nikul R, Niwa S, Niwa O, Nogi M, Nomura K, Ogata D, Ohguchi H, Ohno J, Okabe M, Okada M, Okada Y, Omi N, Onodera H, Onodera K, Ooki S, Oonishi K, Oonuma H, Ooshima H, Oouchi H, Orsucci M, Paoli M, Penaud M, Perdrisot C, Petit M, Piskowski A, Płocharski A, Polis A, Polti L, Potsepnia T, Przybylski D, Pytel M, Quillet W, Remy A, Robert C, Sadowski M, Saito M, Sakuma D, Sano K, Sasaki Y, Sato N, Schneider T, Schneider C, Schwartzman K, Selivanov E, Sezaki M, Shiroishi K, Shustava I, Śniecińska A, Stalchenko E, Staroń A, Stromboni M, Studzińska W, Sugisaki H, Sukegawa T, Sumida M, Suzuki Y, Suzuki K, Suzuki R, Suzuki H, Suzuki K, Świderski W, Szudejko M, Szymaszek M, Tada J, Taguchi H, Takahashi K, Tanaka D, Tanaka G, Tanaka S, Tanino K, Tazbir K, Tcesnokova N, Tgawa N, Toda N, Tsuchiya H, Tsukamoto H, Tsushima T, Tsutsumi K, Umemura H, Uno M, Usui A, Utsumi H, Vaucelle M, Wada Y, Watanabe K, Watanabe S, Watase K, Witkowski M, Yamaki T, Yamamoto J, Yamamoto T, Yamashita M, Yanai M, Yasuda K, Yoshida Y, Yoshida A, Yoshimura K, Żmijewska M, Zuclarelli E. Measurement and comparison of individual external doses of high-school students living in Japan, France, Poland and Belarus-the 'D-shuttle' project. J Radiol Prot 2016; 36:49-66. [PMID: 26613195 DOI: 10.1088/0952-4746/36/1/49] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Twelve high schools in Japan (of which six are in Fukushima Prefecture), four in France, eight in Poland and two in Belarus cooperated in the measurement and comparison of individual external doses in 2014. In total 216 high-school students and teachers participated in the study. Each participant wore an electronic personal dosimeter 'D-shuttle' for two weeks, and kept a journal of his/her whereabouts and activities. The distributions of annual external doses estimated for each region overlap with each other, demonstrating that the personal external individual doses in locations where residence is currently allowed in Fukushima Prefecture and in Belarus are well within the range of estimated annual doses due to the terrestrial background radiation level of other regions/countries.
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Affiliation(s)
- N Adachi
- Adachi High School, 2-347 Kakunai, Nihonmatsu, Fukushima 964-0904, Japan
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Abstract
While certainly not a novel concept, faecal microbiota transplant (FMT) has recently garnered renewed interest in veterinary medicine due to its remarkable success in treating recurrent Clostridium difficile infection (CDI) in man. There is a dearth of information on indications and efficacy of FMT for the treatment of gastrointestinal disorders in the horse; however, based on evidence in man and other veterinary species, and anecdotal reports in horses, FMT may be a useful treatment for selected cases of acute and chronic diarrhoea and inflammatory bowel disease (IBD) in the horse. In the absence of evidence, expert opinion is offered on case selection and FMT procedure. More research is needed to explore the efficacy, indications and optimal preparation, storage and delivery of FMT to horses.
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Affiliation(s)
- K R Mullen
- Littleton Equine Medical Center Colorado USA
| | - K Yasuda
- Harvard T.H. Chan School of Public Health Boston Massachusetts USA
| | - T J Divers
- Department of Clinical Sciences Cornell University College of Veterinary Medicine Ithaca New York USA
| | - J S Weese
- Department of Pathobiology Ontario Veterinary College University of Guelph Canada
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Niwa T, Watanabe T, Suzuki K, Hayashi H, Ohta H, Nakayama A, Tsuchiya M, Yasuda K, Murakami N, Itoh Y. Early optimization of antimicrobial therapy improves clinical outcomes of patients administered agents targeting methicillin-resistant Staphylococcus aureus. J Clin Pharm Ther 2015; 41:19-25. [PMID: 26678686 DOI: 10.1111/jcpt.12341] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2015] [Accepted: 11/15/2015] [Indexed: 12/01/2022]
Abstract
WHAT IS KNOWN AND OBJECTIVE Antimicrobial stewardship is required to ensure the appropriate use of antimicrobials. However, no reports have been published on clinical outcomes of implementation of antimicrobial stewardship in patients receiving pathogen-specific antibiotics. METHOD To evaluate the clinical outcomes of patients who received drugs, we conducted a single-centre, retrospective study of the effects of an antimicrobial stewardship programme targeting methicillin-resistant Staphylococcus aureus (MRSA). RESULTS The time to administer effective antimicrobials was significantly (median number of days, 3 before vs. 0 after, P < 0·001) shortened, and the rate of de-escalation was significantly elevated (47·1% vs. 96·2%, P < 0·001) after implementation of daily review. The 60-day clinical failure associated with Gram-positive bacterial infection was significantly reduced (33·3% vs. 17·6%, P = 0·007) after intervention. WHAT IS NEW AND CONCLUSIONS Daily review of administration of antimicrobials targeting MRSA was highly effective in improving clinical outcomes by optimizing early antimicrobial therapy.
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Affiliation(s)
- T Niwa
- Department of Pharmacy, Gifu University Hospital, Gifu, Japan.,Center for Nutrition Support & Infection Control, Gifu University Hospital, Gifu, Japan
| | - T Watanabe
- Center for Nutrition Support & Infection Control, Gifu University Hospital, Gifu, Japan
| | - K Suzuki
- Department of Pharmacy, Gifu University Hospital, Gifu, Japan
| | - H Hayashi
- Department of Pharmacy, Gifu University Hospital, Gifu, Japan
| | - H Ohta
- Center for Nutrition Support & Infection Control, Gifu University Hospital, Gifu, Japan
| | - A Nakayama
- Center for Nutrition Support & Infection Control, Gifu University Hospital, Gifu, Japan
| | - M Tsuchiya
- Center for Nutrition Support & Infection Control, Gifu University Hospital, Gifu, Japan
| | - K Yasuda
- Department of Pharmacy, Gifu University Hospital, Gifu, Japan
| | - N Murakami
- Center for Nutrition Support & Infection Control, Gifu University Hospital, Gifu, Japan
| | - Y Itoh
- Department of Pharmacy, Gifu University Hospital, Gifu, Japan
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50
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Nishikawa Y, Yasuda K, Okamoto S, Ito Y, Mori T, Onimaru R, Shiga T, Tsuchiya K, Watanabe S, Takeuchi W, Katoh N, Kuge Y, Tamaki N, Shirato H. The Voxel-based Analysis of FMISO-PET Image in Patients With Local Recurrence of Nasopharyngeal Carcinoma. Int J Radiat Oncol Biol Phys 2015. [DOI: 10.1016/j.ijrobp.2015.07.1405] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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