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Nakamoto S, Shien T, Itoh M, Yamamoto Y, Ohsumi S, Yoshitomi S, Hikino H, Miyoshi K, Notsu A, Taira N, Doihara H, Ikeda M. Systemic immunity markers are associated with clinical outcomes of atezolizumab treatment in patients with triple-negative advanced breast cancer: a retrospective multicenter observational study. Clin Exp Med 2023; 23:5129-5138. [PMID: 37904008 DOI: 10.1007/s10238-023-01230-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2023] [Accepted: 10/19/2023] [Indexed: 11/01/2023]
Abstract
Immune checkpoint inhibitors (ICI) are reportedly efficacious against triple-negative breast cancer (TNBC) and are now recommended as first-line therapy. Systemic immunity markers, the absolute lymphocyte count (ALC) and the neutrophil-to-lymphocyte ratio (NLR), have been identified as predict ICI efficacy in patients with various cancers. We retrospectively enrolled 36 TNBC patients who received atezolizumab treatment between September 2019 and May 2021 at eight Japanese medical institutions. We evaluated systemic immunity markers, including dynamic changes in these markers, as predictors of survival benefit derived from atezolizumab treatment. Median time-to-treatment failure (TTF) and overall survival (OS) were 116 days and "not reached", respectively. Patients with low NLR at baseline and decreased NLR at the start of the second cycle (SO2nd) had significantly longer OS than those with high NLR at baseline and increased NLR (SO2nd) (log-rank P < 0.001 and log-rank P = 0.049, respectively). Multivariate analyses identified high ALC at baseline and decreased NLR (SO2nd) as independent predictive markers for longer TTF (P = 0.043 and P = 0.002, respectively), and low NLR at baseline and decreased NLR (SO2nd) as independent predictive markers for longer OS (P < 0.001 and P = 0.013, respectively). The safety profile was consistent with those of previous trials. This retrospective multicenter observational study showed the clinical efficacy and safety of atezolizumab treatment. Furthermore, systemic immunity markers, including their dynamic changes, were found to be associated with clinical outcomes of atezolizumab treatment in patients with advanced or metastatic TNBC.
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Affiliation(s)
- Shogo Nakamoto
- Department of Breast and Endocrine Surgery, Okayama University Hospital, 2-5-1, Shikata-cho, Kita-ku, Okayama, 700-8558, Japan.
| | - Tadahiko Shien
- Department of Breast and Endocrine Surgery, Okayama University Hospital, 2-5-1, Shikata-cho, Kita-ku, Okayama, 700-8558, Japan
| | - Mitsuya Itoh
- Department of Breast Surgery, Hiroshima City Hiroshima Citizens Hospital, Hiroshima, Japan
| | - Yutaka Yamamoto
- Department of Breast and Thyroid Surgery, Kawasaki Medical School Hospital, Kurashiki, Japan
| | - Shozo Ohsumi
- Department of Breast Oncology, NHO Shikoku Cancer Center, Matsuyama, Japan
| | - Seiji Yoshitomi
- Department of Breast and Endocrine Surgery, Red Cross Okayama Hospital, Okayama, Japan
| | - Hajime Hikino
- Department of Breast Surgery, Matsue Red Cross Hospital, Matsue, Japan
| | - Kazuya Miyoshi
- Department of Breast and Endocrine Surgery, National Hospital Organization Fukuyama Medical Center, Fukuyama, Japan
| | - Akifumi Notsu
- Clinical Research Center, Shizuoka Cancer Center, Nagaizumi-cho, Japan
| | - Naruto Taira
- Department of Breast and Endocrine Surgery, Okayama University Hospital, 2-5-1, Shikata-cho, Kita-ku, Okayama, 700-8558, Japan
- Department of Breast and Thyroid Surgery, Kawasaki Medical School Hospital, Kurashiki, Japan
| | - Hiroyoshi Doihara
- Department of Breast and Endocrine Surgery, Okayama University Hospital, 2-5-1, Shikata-cho, Kita-ku, Okayama, 700-8558, Japan
- Department of Surgery, Kawasaki Medical School General Medical Center, Okayama, Japan
| | - Masahiko Ikeda
- Department of Breast and Thyroid Surgery, Fukuyama Citizens Hospital, Fukuyama, Japan
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Matsubara K, Miyoshi K, Takeshi K, Kawana S, Kubo Y, Shimizu D, Hashimoto K, Tanaka S, Okazaki M, Sugimoto S, Toyooka S. A Novel Strategy In Vivo Lung Recovery for Prompt Recovery from Primary Graft Dysfunction after Lung Transplantation. J Heart Lung Transplant 2023. [DOI: 10.1016/j.healun.2023.02.888] [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: 04/05/2023] Open
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3
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Choshi H, Miyoshi K, Ujike H, Kawana S, Kubo Y, Shimizu D, Matsubara K, Hashimoto K, Tanaka S, Shien K, Suzawa K, Yamamoto H, Okazaki M, Sugimoto S, Toyooka S. Successful Lung Re-Transplantation with Perioperative Desensitization for Sensitized Recipient with Donor Specific DQ Antibody. J Heart Lung Transplant 2023. [DOI: 10.1016/j.healun.2023.02.1279] [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: 04/05/2023] Open
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4
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Kubo Y, Sugimoto S, Choshi H, Ujike H, Kawana S, Shimizu D, Matsubara K, Hashimoto K, Tanaka S, Shien K, Suzawa K, Miyoshi K, Yamamoto H, Okazaki M, Toyooka S. Histidine-Rich Glycoprotein Ameliorates Lung Ischemia-Reperfusion Injury in a Mouse. J Heart Lung Transplant 2023. [DOI: 10.1016/j.healun.2023.02.1562] [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: 04/05/2023] Open
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5
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Ujike H, Tanaka S, Choshi H, Kawana S, Kubo Y, Shimizu D, Matsubara K, Hashimoto K, Shien K, Suzawa K, Miyoshi K, Yamamoto H, Okazaki M, Sugimoto S, Toyooka S. Bilateral Lung Transplantation from Living Donors in a 67-Year-Old Patient. J Heart Lung Transplant 2023. [DOI: 10.1016/j.healun.2023.02.904] [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: 04/05/2023] Open
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6
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Sato Y, Fujiwara S, Hata A, Kida Y, Masuda T, Amimoto H, Matsumoto H, Miyoshi K, Otsuka K, Tomii K. 1545P A multicenter prospective observational study of pre-existing autoantibodies in patients with small cell lung cancer treated with ICI. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.07.1639] [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: 11/01/2022] Open
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7
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Nakata K, Okazaki M, Miyoshi K, Sugimoto S, Sakaguchi M, Toyooka S. Anti-S100A8/A9 Neutralizing Monoclonal Antibody Ameliorates Lung Injury Induced by Lung Ischemia Reperfusion Injury. J Heart Lung Transplant 2022. [DOI: 10.1016/j.healun.2022.01.040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
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8
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Tomioka Y, Sugimoto S, Kawana S, Kubo Y, Shimizu D, Matsubara K, Tanaka S, Miyoshi K, Okazaki M, Toyooka S. Identification of Single-Nucleotide Polymorphisms Associated with Renal Dysfunction After Lung Transplantation Using Ethnic-Specific SNP Array. J Heart Lung Transplant 2022. [DOI: 10.1016/j.healun.2022.01.623] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
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9
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Kubo Y, Sugimoto S, Shiotani T, Kawana S, Shimizu D, Matsubara K, Hashimoto K, Tanaka S, Shien K, Suzawa K, Miyoshi K, Yamamoto H, Okazaki M, Toyooka S. The Percentage of Low Attenuation Area on Computed Tomography to Detect Chronic Lung Allograft Dysfunction After Bilateral Lung Transplantation. J Heart Lung Transplant 2022. [DOI: 10.1016/j.healun.2022.01.247] [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] Open
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10
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Otani S, Tomioka Y, Matsubara K, Shimizu D, Yamamoto H, Shiotani T, Suzawa K, Miyoshi K, Yamamoto H, Okazaki M, Sugimoto S, Yamane M, Toyooka S. Pediatric Lung Transplantation−Intermediate Outcomes of a Japanese Center. J Heart Lung Transplant 2021. [DOI: 10.1016/j.healun.2021.01.995] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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11
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Matsubara K, Otani S, Shimizu D, Tomioka Y, Shiotani T, Yamamoto H, Miyoshi K, Okazaki M, Sugimoto S, Yamane M, Toyooka S. Risk Assessment of Chronic Lung Allograft Dysfunction Phenotypes after Living-Donor Lobar Lung Transplantation According to the 2019 ISHLT Classification System. J Heart Lung Transplant 2021. [DOI: 10.1016/j.healun.2021.01.867] [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: 10/21/2022] Open
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12
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Yamamoto H, Sugimoto S, Suzuki E, Tomioka Y, Shiotani T, Shimizu D, Matsubara K, Miyoshi K, Otani S, Okazaki M, Yamane M, Toyooka S. Combination of Neutrophil to Lymphocyte Ratio and Glasgow Prognostic Score Improves Prognostic Accuracy in Lung Transplantation: Validation of 9 Preoperative Prognostic Scoring Methods. J Heart Lung Transplant 2021. [DOI: 10.1016/j.healun.2021.01.1007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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13
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Shiotani T, Sugimoto S, Yamamoto H, Matsubara K, Shimizu D, Nakata K, Tomioka Y, Miyoshi K, Otani S, Okazaki M, Yamane M, Toyooka S. Plasma Levels of Histidine-Rich Glycoprotein are Associated with the Development of Primary Graft Dysfunction after Lung Transplantation. J Heart Lung Transplant 2021. [DOI: 10.1016/j.healun.2021.01.455] [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: 10/21/2022] Open
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14
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Tomioka Y, Sugimoto S, Matsubara K, Shimizu D, Yamamoto H, Shiotani T, Miyoshi K, Ohtani S, Okazaki M, Yamane M, Toyooka S. The UNCX Polymorphism is Associated with the Development of Renal Dysfunction after Lung Transplantation. J Heart Lung Transplant 2021. [DOI: 10.1016/j.healun.2021.01.977] [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: 10/21/2022] Open
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15
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Uno M, Miyoshi K, Takahashi H, Nakagawa T, Kaneyasu Y. [Three Cases of Orbital Metastasis from Breast Cancer Treated with Radiotherapy]. Gan To Kagaku Ryoho 2021; 48:371-373. [PMID: 33790160] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Orbital metastasis from breast cancer is relatively uncommon and is not the dominant prognosis. While it can reduce a patient's QOL through symptoms such as diplopia, visual impairment, and exophthalmos, evidence suggests that radiotherapy might improve these symptoms in a relatively short period. We report 3 cases of orbital metastasis from breast cancer treated with radiotherapy. All 3 patients were diagnosed with stage Ⅳ breast cancer and underwent chemotherapy and endocrine therapy for several years. When they were diagnosed with orbital metastasis, their life expectancy was only a few months with debilitating illness. They received radiotherapy, which caused slight side effects including skin disorders. The cancer symptoms rapidly improved in 2 patients, suggesting that radiotherapy can be an efficacious choice for improving the QOL for patients with orbital metastasis from breast cancer, especially for patients in terminal status.
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Affiliation(s)
- Maya Uno
- Dept. of Breast and Endocrine Surgery, National Hospital Organization Fukuyama Medical Center
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Miyoshi K, Takahashi H, Inagaki M, Watanabe J, Yamada S, Mizutani K. A case report of fibroadenoma of the breast with characteristic cystic change on a cut surface. SAGE Open Med Case Rep 2020; 8:2050313X20927612. [PMID: 32637109 PMCID: PMC7318826 DOI: 10.1177/2050313x20927612] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2020] [Accepted: 04/20/2020] [Indexed: 11/16/2022] Open
Abstract
Fibroadenoma with remarkable cystic change is very unusual. Opinions differ as to the interpretation of this lesion. Furthermore, there have been few reports focusing on its macroscopic view. We herein report a case of fibroadenoma in a 43-year-old woman. The patient presented herself to a medical doctor's office due to a rapidly growing breast tumor. Based on a core needle biopsy, a benign lesion was suspected, and the tumor was surgically resected. On a macroscopic study, the cut surface of the tumor revealed a remarkably cystic and well-circumscribed lesion with an intracystic polypoid component. Microscopically, a variety of findings of epithelial and stromal proliferation were observed. This is an interesting case not only because a fibroadenoma with prominent cystic change is unusual but also because the breast tumor showed a characteristically cystic appearance on its macroscopic view.
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Affiliation(s)
- Kazuya Miyoshi
- Department of Breast Surgery, National Hospital Organization, Fukuyama Medical Center, Hiroshima, Japan
| | - Hirotoshi Takahashi
- Department of Breast Surgery, National Hospital Organization, Fukuyama Medical Center, Hiroshima, Japan
| | - Masaru Inagaki
- Department of Surgery, National Hospital Organization, Fukuyama Medical Center, Hiroshima, Japan
| | - Jiro Watanabe
- Department of Laboratory of Pathology, National Hospital Organization, Fukuyama Medical Center, Hiroshima, Japan
| | - Sohsuke Yamada
- Department of Laboratory of Pathology, National Hospital Organization, Fukuyama Medical Center, Hiroshima, Japan.,Department of Pathology and Laboratory Medicine, Kanazawa Medical University, Ishikawa, Japan
| | - Kenichi Mizutani
- Department of Pathology and Laboratory Medicine, Kanazawa Medical University, Ishikawa, Japan
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17
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Shiotani T, Sugimoto S, Yamamoto H, Shimizu D, Miyoshi K, Otani S, Okazaki M, Yamane M, Oto T, Toyooka S. Plasma micro-RNA Levels are Associated with the Development of Chronic Lung Allograft Dysfunction after Bilateral Living-Donor and Cadaveric Lung Transplantation. J Heart Lung Transplant 2020. [DOI: 10.1016/j.healun.2020.01.792] [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: 10/24/2022] Open
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18
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Miyoshi K, Takahashi H, Takahashi K, Hayashi T, Kawata K, Nomura T. [Two Cases of Endobronchial Metastases from Breast Cancer]. Gan To Kagaku Ryoho 2019; 46:1287-1289. [PMID: 31501371] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Endobronchialmetastasis(EBM)is a rare complication in breast cancer patients. Herein, we report 2 cases of EBM in breast cancer patients. Patient 1 had pulmonary metastases that were treated with hormone therapy and showed long survival after achieving a CR, while patient 2 had multi-organ metastases and died 42 months after the diagnosis of EBM. If bronchial obstruction is observed in a breast cancer patient, early diagnosis of EBM via a bronchoscopic examination is recommended. EBM may not indicate a poor prognosis, and appropriate anti-cancer therapy with palliative intrabronchial therapies can prolong the survival in selected EBM patients.
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Affiliation(s)
- Kazuya Miyoshi
- Dept. of Breast &s Endocrine Surgery, NHO Fukuyama Medical Center
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19
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Kurosaki T, Otani S, Miyoshi K, Okazaki M, Sugimoto S, Yamane M, Oto T. New Technique Which Was Combined Living Donor Lower Lobe with Cadaveric Marginal Lung as Called “Hybrid Lung Transplant”. J Heart Lung Transplant 2019. [DOI: 10.1016/j.healun.2019.01.853] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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20
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Yamamoto H, Miyoshi K, Kurosaki T, Otani S, Okazaki M, Sugimoto S, Yamane M, Toyooka S, Oto T. Inverted Lung Transplantation: Interposition of Pericardial Conduit for Pulmonary Venous Anastomosis. J Heart Lung Transplant 2019. [DOI: 10.1016/j.healun.2019.01.077] [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: 10/27/2022] Open
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21
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Miyoshi K, Takahashi H, Uno M, Akai M, Moriyama E, Nakagawa T, Nomura T. [Three Cases of Intrathecal Chemotherapy with Ventricular Catheter for the Treatment of Leptomeningeal Metastasis from Breast Cancer]. Gan To Kagaku Ryoho 2018; 45:1767-1769. [PMID: 30587738] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Leptomeningeal metastasis(LM)is a rare complication in patients with breast cancer. We report 3 cases of LMs in patients with breast cancer who were treated with intrathecal methotrexate via an Ommaya reservoir. In 2 patients, a significant neurological improvement was observed, whereas in 1 patient there was no response. The overall survivals for the patients who experienced improvements were 22 and 9 months. Although we have no evidence for the efficacy of intrathecal chemotherapy for LMs in patients with breast cancer, its effects for some patients could be promising, after reservoir management and drug selection establishment.
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Affiliation(s)
- Kazuya Miyoshi
- Dept. of Breast and Endocrine Surgery, National Hospital Organization Fukuyama Medical Center
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Affiliation(s)
- K. Miyoshi
- Department of Mechanical Engineering, Toyohashi University of Technology, Toyohashi, Aichi, Japan
| | - T. Mashimo
- Department of Mechanical Engineering, Toyohashi University of Technology, Toyohashi, Aichi, Japan
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23
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Kurosaki T, Otani S, Sugimoto S, Miyoshi K, Yamamoto H, Tanaka S, Shikatani Y, Mesaki K, Hashimoto K, Yamane M, Toyooka S, Oto T. Experience of Using mTOR Inhibitor in Lung Transplant at Recipients With Lymphangioleiomyomatosis. J Heart Lung Transplant 2018. [DOI: 10.1016/j.healun.2018.01.1186] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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24
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Niman E, Miyoshi K, Namura S, Kurosaki T, Ohtani S, Sugimoto S, Yamane M, Toyooka S, Oto T. Early Detection of Chronic Lung Allograft Dysfunction After Bilateral Living Donor Lobar Lung Transplantation by Computed Tomographic Scanning Scoring Method. J Heart Lung Transplant 2018. [DOI: 10.1016/j.healun.2018.01.1152] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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25
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Takahashi H, Uno M, Miyoshi K. [A Case of Skull Base Metastasis of Breast Cancer with Dysphasia, Odynophagia and Dysarthria]. Gan To Kagaku Ryoho 2017; 44:1343-1345. [PMID: 29394628] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
While skull base metastases from breast cancer are not uncommon, there are relatively few reported cases in the literature. We report a case of skull base metastasis of breast cancer that resulted in dysphasia, odynophagia, and dysarthria. The case involved a woman in her 50 s who was diagnosed with cancer of the right breast(cT4N1M0, cStage III B)at another medical institution 9 years previously and who underwent a partial mastectomy and an axillary lymph node dissection following neoadjuvant chemotherapy. She began experiencing neck pain 6 months previously, followed by dysphasia, odynophagia, and dysarthria 1 month previously. The patient was referred to our hospital for detailed examination and treatment. PET-CT and cranial MRI was conducted and detected metastatic lesion from the skull base to the upper cervical vertebrae. An orthopedic surgeon performed a posterior decompression and fusion surgery on the occipital bone, cervical vertebra, and thoracic vertebra. A histological examination of bone tissue extracted during surgery revealed that the breast cancer had metastasized. We then performed irradiation of the cervical vertebra from the cranial base and initiated treatment with zoledronic acid and anastrozole. Symptoms such as dysphasia, odynophagia and dysarthria lessened, and the patient is currently being followedupas an outpatient.
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Affiliation(s)
- Hirotoshi Takahashi
- Dept. of Breast and Endocrine Surgery, National Hospital Organization Fukuyama Medical Center
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Komaki H, Takeshita E, Motohashi Y, Ishiyama A, Sasaki M, Miyoshi K, Yamamiya I, Yamada N, Minami N. A Phase I, single- and repeated-dose study of TAS-205, a novel inhibitor of hematopoietic prostaglandin D synthase, in patients with Duchenne muscular dystrophy. Neuromuscul Disord 2017. [DOI: 10.1016/j.nmd.2017.06.445] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Miyoshi K, Kurosaki T, Otani S, Sugimoto S, Yamane M, Oto T. Post-Lung Transplant Outcome & Risk Matching Between Donor & Recipient - Score-Based Analyses. J Heart Lung Transplant 2017. [DOI: 10.1016/j.healun.2017.01.1512] [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: 11/28/2022] Open
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28
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Yokoyama C, Morioka M, Tanaka S, Miyoshi K, Sahara Y, Oto T. Paird Donor Exchange in Lung Transplantation-Attitude Survey. J Heart Lung Transplant 2017. [DOI: 10.1016/j.healun.2017.01.1009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
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29
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Hashimoto K, Sugimoto S, Imanishi K, Kurosaki T, Miyoshi K, Otani S, Yamane M, Oto T. Meticulous Closure of Collateral Blood Flow in the Perihilar Mediastinal Pleura Decreases Bleeding and Surgical Mortality in Lung Transplant Recipients with Pulmonary Hypertension. J Heart Lung Transplant 2017. [DOI: 10.1016/j.healun.2017.01.1031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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30
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Irie M, Otani S, Kurosaki T, Shikatani Y, Mesaki K, Hashimoto K, Tanaka S, Miyahara K, Ohki T, Miyoshi K, Sugimoto S, Yamane M, Miyoshi S, Oto T. Warm Retrograde Perfusion Can Remove More Fat from Lung Grafts with Fat Embolism in a Porcine Donor Model. J Heart Lung Transplant 2017. [DOI: 10.1016/j.healun.2017.01.1064] [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] Open
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31
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Simonelli L, Paris E, Iwai C, Miyoshi K, Takeuchi J, Mizokawa T, Saini NL. High resolution x-ray absorption and emission spectroscopy of Li x CoO 2 single crystals as a function delithiation. J Phys Condens Matter 2017; 29:105702. [PMID: 28145896 DOI: 10.1088/1361-648x/aa574d] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
The effect of delithiation in Li x CoO2 is studied by high resolution Co K-edge x-ray absorption and x-ray emission spectroscopy. Polarization dependence of the x-ray absorption spectra on single crystal samples is exploited to reveal information on the anisotropic electronic structure. We find that the electronic structure of Li x CoO2 is significantly affected by delithiation in which the Co ions oxidation state tending to change from 3+ to 4+. The Co intersite (intrasite) 4p-3d hybridization suffers a decrease (increase) by delithiation. The unoccupied 3d t 2g orbitals with a 1g symmetry, containing substantial O 2p character, hybridize isotropically with Co 4p orbitals and likely to have itinerant character unlike anisotropically hybridized 3d e g orbitals. Such a peculiar electronic structure could have significant effect on the mobility of Li in Li x CoO2 cathode and hence the battery characteristics.
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Affiliation(s)
- L Simonelli
- CELLS-ALBA, Carretera BP 1413, de Cerdanyola del Valles a Sant Cugat del Valles, Km. 3,3 08290 Cerdanyola del Valles, Barcelona, Spain. European Synchrotron Radiation Facility, BP220, F-38043 Grenoble Cedex, France
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Tanaka S, Miyoshi K, Kurosaki T, Otani S, Sugimoto S, Yamane M, Oto T. Refinement of Lung Donor Scoring System with Consideration for Negative Impact of Prolonged Donor Intubation Time. J Heart Lung Transplant 2016. [DOI: 10.1016/j.healun.2016.01.1064] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
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Miyoshi K, Konishi Y, Kurosaki T, Otani S, Sugimoto S, Yamane M, Miyoshi S, Oto T. Not Donor’s but Recipient’s Airway Organisms Are Relevant to Post-Lung Transplant Pneumonia. J Heart Lung Transplant 2016. [DOI: 10.1016/j.healun.2016.01.880] [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] Open
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Hirano Y, Sugimoto S, Mano T, Kurosaki T, Otani S, Miyoshi K, Yamane M, Miyoshi S, Oto T. Prolonged Administration of Twice Daily Bolus Intravenous Tacrolimus Early after Lung Transplantation. J Heart Lung Transplant 2016. [DOI: 10.1016/j.healun.2016.01.676] [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] Open
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Irie M, Sugimoto S, Kurosaki T, Miyoshi K, Otani S, Yamane M, Oto T, Miyoshi S. Cadaveric Lobar Lung Transplantation Based on the Experiences of Living-Donor Lobar Lung Transplantation. J Heart Lung Transplant 2016. [DOI: 10.1016/j.healun.2016.01.1052] [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] Open
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36
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Adiningrat A, Tanimura A, Miyoshi K, Hagita H, Yanuaryska RD, Arinawati DY, Horiguchi T, Noma T. Isolation and characterization of dental epithelial cells derived from amelogenesis imperfecta rat. Oral Dis 2015; 22:132-9. [PMID: 26582753 DOI: 10.1111/odi.12396] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [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: 09/15/2015] [Revised: 10/29/2015] [Accepted: 11/09/2015] [Indexed: 01/28/2023]
Abstract
OBJECTIVE Disruption of the third zinc finger domain of specificity protein 6 (SP6) presents an enamel-specific defect in a rat model of amelogenesis imperfecta (AMI rats). To understand the molecular basis of amelogenesis imperfecta caused by the Sp6 mutation, we established and characterized AMI-derived rat dental epithelial (ARE) cells. MATERIALS AND METHODS ARE cell clones were isolated from the mandibular incisors of AMI rats, and amelogenesis-related gene expression was analyzed by reverse transcription polymerase chain reaction (RT-PCR). Localization of wild-type SP6 (SP6WT) and mutant-type SP6 (SP6AMI) was analyzed by immunocytochemistry. SP6 transcriptional activity was monitored by rho-associated protein kinase 1 (Rock1) promoter activity with its specific binding to the promoter region in dental (G5 and ARE) and non-dental (COS-7) epithelial cells. RESULTS Isolated ARE cells were varied in morphology and gene expression. Both SP6WT and SP6AMI were mainly detected in nuclei. The promoter analysis revealed that SP6WT and SP6AMI enhanced Rock1 promoter activity in G5 cells but that enhancement by SP6AMI was weaker, whereas no enhancement was observed in the ARE and COS-7 cells, even though SP6WT and SP6AMI bound to the promoter in all instances. CONCLUSION ARE cell clones can provide a useful in vitro model to study the mechanism of SP6-mediated amelogenesis imperfecta.
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Affiliation(s)
- A Adiningrat
- Graduate School of Oral Sciences, Tokushima University, Tokushima, Japan
| | - A Tanimura
- Department of Molecular Biology, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - K Miyoshi
- Department of Molecular Biology, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - H Hagita
- Department of Molecular Biology, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - R D Yanuaryska
- Graduate School of Oral Sciences, Tokushima University, Tokushima, Japan.,Department of Dentomaxillofacial Radiology, Faculty of Dentistry, Universitas Gadjah Mada, Yogyakarta, Indonesia
| | - D Y Arinawati
- Graduate School of Oral Sciences, Tokushima University, Tokushima, Japan
| | - T Horiguchi
- Department of Molecular Biology, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - T Noma
- Department of Molecular Biology, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
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Hasegawa R, Miyoshi K, Islam M, Tomiyama N. P-133: Lower half of leg length influenced 30 seconds chair stand test in community-dwelling older adults. Eur Geriatr Med 2015. [DOI: 10.1016/s1878-7649(15)30235-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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38
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Sato M, Kagoshima A, Saitoh I, Inada E, Miyoshi K, Ohtsuka M, Nakamura S, Sakurai T, Watanabe S. Generation ofα-1,3-Galactosyltransferase-Deficient Porcine Embryonic Fibroblasts by CRISPR/Cas9-Mediated Knock-in of a Small Mutated Sequence and a Targeted Toxin-Based Selection System. Reprod Domest Anim 2015; 50:872-80. [DOI: 10.1111/rda.12565] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2015] [Accepted: 05/24/2015] [Indexed: 12/26/2022]
Affiliation(s)
- M Sato
- Section of Gene Expression Regulation; Frontier Science Research Center; Kagoshima University; Kagoshima Japan
| | - A Kagoshima
- Division of Pediatric Dentistry; Department of Oral Health Sciences; Course for Oral Life Science; Graduate School of Medical and Dental Sciences; Niigata University; Niigata Japan
| | - I Saitoh
- Division of Pediatric Dentistry; Department of Oral Health Sciences; Course for Oral Life Science; Graduate School of Medical and Dental Sciences; Niigata University; Niigata Japan
| | - E Inada
- Department of Pediatric Dentistry; Graduate School of Medical and Dental Sciences; Kagoshima University; Kagoshima Japan
| | - K Miyoshi
- Laboratory of Animal Reproduction; Faculty of Agriculture; Kagoshima University; Kagoshima Japan
| | - M Ohtsuka
- Division of Basic Molecular Science and Molecular Medicine; School of Medicine; Tokai University; Kanagawa Japan
| | - S Nakamura
- Division of Biomedical Engineering; National Defense Medical College Research Institute; Saitama Japan
| | - T Sakurai
- Department of Cardiovascular Research; Graduate School of Medicine; Shinshu University; Nagano Japan
| | - S Watanabe
- Animal Genome Research Unit; Division of Animal Science; National Institute of Agrobiological Sciences; Ibaraki Japan
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Yokokawa Y, Miyoshi K, Nishikawa R, Nishizawa H, An Cheng G, Kai I. Effects of the combined task training program using square-stepping nets on walking speed of healthy elderly. Physiotherapy 2015. [DOI: 10.1016/j.physio.2015.03.107] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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40
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Miyoshi K, Oto T, Sugimoto S, Yamane M, Miyoshi S. Chronic Lung Allograft Dysfunction After Bilateral Living Donor Lobar Lung Transplantation. J Heart Lung Transplant 2015. [DOI: 10.1016/j.healun.2015.01.108] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
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41
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Hoshikawa Y, Okada Y, Ashikari J, Matsuda Y, Niikawa H, Noda M, Sado T, Watanabe T, Notsuda H, Chen F, Inoue M, Miyoshi K, Shiraishi T, Miyazaki T, Chida M, Fukushima N, Kondo T. Medical Consultant System for Improving Lung Transplantation Opportunities and Outcomes in Japan. Transplant Proc 2015; 47:746-50. [DOI: 10.1016/j.transproceed.2014.12.041] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2014] [Accepted: 12/31/2014] [Indexed: 11/16/2022]
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42
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Sugimoto S, Oto T, Okada M, Iga N, Miyoshi K, Yamane M, Miyoshi S. Update on the Outcomes of Lung Transplantation After Hematopoietic Stem Cell Transplantation: A Single-Center Experience. J Heart Lung Transplant 2015. [DOI: 10.1016/j.healun.2015.01.710] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
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43
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Fukuoka T, Miyoshi K, Noguchi K. De novo expression of Nav1.7 in injured putative proprioceptive afferents: Multiple tetrodotoxin-sensitive sodium channels are retained in the rat dorsal root after spinal nerve ligation. Neuroscience 2014; 284:693-706. [PMID: 25453779 DOI: 10.1016/j.neuroscience.2014.10.027] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2014] [Revised: 10/11/2014] [Accepted: 10/14/2014] [Indexed: 12/23/2022]
Abstract
Tetrodotoxin-sensitive (TTX-s) spontaneous activity is recorded from the dorsal roots after peripheral nerve injury. Primary sensory neurons in the dorsal root ganglion (DRG) express multiple TTX-s voltage-gated sodium channel α-subunits (Navs). Since Nav1.3 increases, whereas all other Navs decrease, in the DRG neurons after peripheral nerve lesion, Nav1.3 is proposed to be critical for the generation of these spontaneous discharges and the contributions of other Navs have been ignored. Here, we re-evaluate the changes in expression of three other TTX-s Navs, Nav1.1, Nav1.6 and Nav1.7, in the injured 5th lumbar (L5) primary afferent components following L5 spinal nerve ligation (SNL) using in situ hybridization histochemistry and immunohistochemistry. While the overall signal intensities for these Nav mRNAs decreased, many injured DRG neurons still expressed these transcripts at clearly detectable levels. All these Nav proteins accumulated at the proximal stump of the ligated L5 spinal nerve. The immunostaining patterns of Nav1.6 and Nav1.7 associated with the nodes of Ranvier were maintained in the ipsilateral L5 dorsal root. Interestingly, putative proprioceptive neurons characterized by α3 Na+/K+ ATPase-immunostaining specifically lacked Nav1.7 mRNA in naïve DRG but displayed de novo expression of this transcript following SNL. Nav1.7-immunoreactive fibers were significantly increased in the ipsilateral gracile nucleus where central axonal branches of the injured A-fiber afferents terminated. These data indicate that multiple TTX-s channel subunits could contribute to the generation and propagation of the spontaneous discharges in the injured primary afferents. Specifically, Nav1.7 may cause some functional changes in sensory processing in the gracile nucleus after peripheral nerve injury.
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Affiliation(s)
- T Fukuoka
- Department of Anatomy & Neuroscience, Hyogo College of Medicine, Nishinomiya, Hyogo, Japan.
| | - K Miyoshi
- Department of Anatomy & Neuroscience, Hyogo College of Medicine, Nishinomiya, Hyogo, Japan
| | - K Noguchi
- Department of Anatomy & Neuroscience, Hyogo College of Medicine, Nishinomiya, Hyogo, Japan
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Nomura T, Tsunoda K, Ohta S, Doi K, Miyoshi K, Hasegawa Y, Mizutani M. [Effectiveness of skin icing for reducing pain associated with luteinizing hormone-releasing hormone agonist injection]. Gan To Kagaku Ryoho 2014; 41:221-224. [PMID: 24743201] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
We evaluated the effect of using the cooling method on pain at the site of luteinizing hormone-releasing hormone(LH-RH) agonist injection in 181 prostate cancer or premenopausal breast cancer patients by using a numerical rating scale(NRS)and a questionnaire survey with open-ended questions. According to the NRS, 38.1% of the patients experienced a reduction in pain, 37.5% experienced no change, and 24.4% experienced an increase in pain. Therefore, use of the cooling method did not have a statistically significant effect in terms of pain reduction(p=0.123). However, on analyzing pain reduction according to the answers in the questionnaire survey, 53.2% of the patients experienced a reduction in pain, 38.5% experienced no change, and 8.3% experienced an increase in pain. These findings were different from those obtained on using the NRS. In addition, irrespective of using the cooling method, needle thickness and patient obesity strongly influenced the pain experienced. The skin icing method was effective in reducing pain at the site of LH-RH agonist injection. This method is simple, inexpensive, and safe, and is hence recommended.
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Affiliation(s)
- Tsunehisa Nomura
- Dept. of Breast and Thyroid Surgery,National Hospital Organization Fukuyama Medical Center
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Yamamoto N, Murakami H, Hayashi H, Fujisaka Y, Hirashima T, Takeda K, Satouchi M, Miyoshi K, Akinaga S, Takahashi T, Nakagawa K. CYP2C19 genotype-based phase I studies of a c-Met inhibitor tivantinib in combination with erlotinib, in advanced/metastatic non-small cell lung cancer. Br J Cancer 2013; 109:2803-9. [PMID: 24169346 PMCID: PMC3844902 DOI: 10.1038/bjc.2013.588] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [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: 05/27/2013] [Revised: 08/23/2013] [Accepted: 09/04/2013] [Indexed: 12/15/2022] Open
Abstract
Background: A previous clinical study in non-small cell lung cancer (NSCLC) patients in Western countries suggested the potential for combination of a first-in-class non-ATP-competitive c-Met inhibitor tivantinib with an epidermal growth factor receptor-tyrosine kinase inhibitor erlotinib. Polymorphisms of CYP2C19, the key metabolic enzyme for tivantinib, should be addressed to translate the previous Western study to Asian population, because higher incidence of poor metabolisers (PMs) is reported in Asian population. Methods: Japanese patients with advanced/metastatic NSCLC received tivantinib in combination with erlotinib to evaluate safety and pharmacokinetics. Doses of tivantinib were escalated separately for extensive metabolisers (EMs) and PMs. Results: Tivantinib, when combined with erlotinib, was well tolerated up to 360 mg BID for EMs and 240 mg BID for PMs, respectively. Among 25 patients (16 EMs and 9 PMs), the adverse events (AEs) related to tivantinib and/or erlotinib (>20%, any grade) were rash, diarrhoea, dry skin and nausea. Grade ⩾3 AEs were leukopenia, anaemia and neutropenia. No dose-limiting toxicity was observed. Pharmacokinetics profile of tivantinib was not clearly different between the combination and monotherapy. Three partial response and three long-term stable disease (⩾24 weeks) were reported. Conclusion: Two doses of tivantinib in combination with erlotinib were recommended based on CYP2C19 genotype: 360 mg BID for EMs and 240 mg BID for PMs.
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Affiliation(s)
- N Yamamoto
- Division of Thoracic Oncology, Shizuoka Cancer Center, 1007, Shimonagakubo, Nagaizumi-cho, Sunto-gun, Shizuoka 411-8777, Japan
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Iwaya K, Ogawa T, Minato T, Miyoshi K, Takeuchi J, Kuwabara A, Moriwake H, Kim Y, Hitosugi T. Impact of lithium-ion ordering on surface electronic states of Li(x)CoO2. Phys Rev Lett 2013; 111:126104. [PMID: 24093280 DOI: 10.1103/physrevlett.111.126104] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/16/2013] [Indexed: 06/02/2023]
Abstract
Li(x)CoO(2) exhibits intriguing electronic properties due to a strong electron correlation and complex interplay between Co and Li ions. However, fundamental understanding of the nanoscale distribution of Li ions and its effect on the electronic properties remains unclear. We use scanning tunneling microscopy and density functional theory to elucidate the degree of Li(x)CoO(2) surface electronic state modification that can be achieved by Li ordering. The surface Li ions are highly mobile and preferentially form a (1 × 1) hexagonal lattice, whereas the surface CoO(2) layer shows metallic and insulating phases, indicating the coexistence of ordered and disordered Li ions in the subsurface layer. These results provide evidence of novel electronic properties produced by spatially inhomogeneous Li-ordering patterns.
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Affiliation(s)
- K Iwaya
- Advanced Institute for Materials Research, Tohoku University, Sendai 980-8577, Japan and Center for Emergent Matter Science, RIKEN, Wako, Saitama 351-0198, Japan
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Mizokawa T, Wakisaka Y, Sudayama T, Iwai C, Miyoshi K, Takeuchi J, Wadati H, Hawthorn DG, Regier TZ, Sawatzky GA. Role of oxygen holes in Li(x)CoO(2) revealed by soft X-ray spectroscopy. Phys Rev Lett 2013; 111:056404. [PMID: 23952425 DOI: 10.1103/physrevlett.111.056404] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/22/2013] [Indexed: 06/02/2023]
Abstract
The fundamental electronic structure of the widely used battery material Li(x)CoO(2) still remains a mystery. Soft x-ray absorption spectroscopy of Li(x)CoO(2) reveals that holes with strong O 2p character play an essential role in the electronic conductivity of the Co(3+)/Co(4+) mixed valence CoO(2) layer. The oxygen holes are bound to the Co(4+) sites and the Li-ion vacancy, suggesting that the Li-ion flow can be stabilized by oxygen hole back flow. Such an oxygen hole state of Li(x)CoO(2) is unique among the various oxide-based battery materials and is one of the key ingredients to improving their electronic and Li-ion conductivities.
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Affiliation(s)
- T Mizokawa
- Department of Physics and Department of Complexity Science and Engineering, University of Tokyo, Chiba 277-8561, Japan
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Sugimoto S, Oto T, Miyoshi K, Nishikawa H, Nakatani A, Yamane M, Miyoshi S. Lung Transplantation for Diffuse Panbronchiolitis. J Heart Lung Transplant 2013. [DOI: 10.1016/j.healun.2013.01.456] [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: 10/27/2022] Open
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49
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Okada M, Yamane M, Iga N, Nishikawa H, Yamamoto S, Otani S, Waki N, Hirayama S, Miyoshi K, Sugimoto S, Toyooka S, Oto T, Matsukawa A, Miyoshi S. MAPK/ERK Pathway Activation Leads to Severe Ischemia-Reperfusion-Induced Lung Injury. J Heart Lung Transplant 2013. [DOI: 10.1016/j.healun.2013.01.309] [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: 11/30/2022] Open
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50
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Yamane M, Oto T, Miyoshi K, Sugimoto S, Miyoshi S. Evaluation of the Suitability of Lungs Procured from Marginal Donors. Transplantation 2012. [DOI: 10.1097/00007890-201211271-01851] [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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