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Kawakami T, Masui S, Onishi A, Onizawa H, Fujii T, Murakami K, Murata K, Tanaka M, Shimada T, Nakagawa S, Matsuda S, Morinobu A, Terada T, Yonezawa A. Comparison of safety and effectiveness between etanercept biosimilar LBEC0101 and reference in patients with rheumatoid arthritis in real-world data using the KURAMA cohort. Mod Rheumatol 2024:roae018. [PMID: 38516944 DOI: 10.1093/mr/roae018] [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: 12/05/2023] [Accepted: 02/23/2024] [Indexed: 03/23/2024]
Abstract
OBJECTIVES Biosimilars are anticipated to be widely used in the treatment of rheumatoid arthritis (RA), owing to their cost efficiency; LBEC0101 was the first etanercept (ETN) biosimilar approved in Japan. However, there are limited real-world data comparing its safety and effectiveness with those of a reference product. METHODS This study used data from the Kyoto University Rheumatoid Arthritis Management Alliance cohort, including patients with RA who received ETN therapy-ETN reference product (ETN-RP) or LBEC0101-between 2015 and 2021. Serum ETN levels were measured using liquid chromatography-tandem mass spectrometry. RESULTS The 1-year continuation rates of ETN-RP and LBEC0101 were 58.7% and 74.4%, respectively. Effectiveness of treatment was evaluated in 18 patients; both products significantly reduced the 28-joint RA disease activity score and erythrocyte sedimentation rate (DAS28-ESR). Moreover, to determine equivalence, we analysed 11 patients who switched from ETN-RP to LBEC0101; the DAS28-ESR and serum ETN levels before and after switching were not significantly different. CONCLUSIONS This real-world cohort study confirmed that the biosimilar of ETN, LBEC0101, was comparable to the reference product in terms of continuation rate, effectiveness at initiation of introduction, and effect persistence before and after switching in clinical practice.
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Affiliation(s)
- Tomoya Kawakami
- Department of Clinical Pharmacology and Therapeutics, Kyoto University Hospital, Kyoto, Japan
| | - Sho Masui
- Department of Clinical Pharmacology and Therapeutics, Kyoto University Hospital, Kyoto, Japan
- Division of Integrative Clinical Pharmacology, Faculty of Pharmacy, Keio University, Tokyo, Japan
| | - Akira Onishi
- Department of Advanced Medicine for Rheumatic Diseases, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Hideo Onizawa
- Department of Advanced Medicine for Rheumatic Diseases, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Takayuki Fujii
- Department of Advanced Medicine for Rheumatic Diseases, Graduate School of Medicine, Kyoto University, Kyoto, Japan
- Department of Orthopaedic Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Kosaku Murakami
- Center for Cancer Immunotherapy and Immunobiology, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Koichi Murata
- Department of Advanced Medicine for Rheumatic Diseases, Graduate School of Medicine, Kyoto University, Kyoto, Japan
- Department of Orthopaedic Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Masao Tanaka
- Department of Advanced Medicine for Rheumatic Diseases, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | | | - Shunsaku Nakagawa
- Department of Clinical Pharmacology and Therapeutics, Kyoto University Hospital, Kyoto, Japan
| | - Shuichi Matsuda
- Department of Orthopaedic Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Akio Morinobu
- Department of Advanced Medicine for Rheumatic Diseases, Graduate School of Medicine, Kyoto University, Kyoto, Japan
- Department of Rheumatology and Clinical Immunology, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Tomohiro Terada
- Department of Clinical Pharmacology and Therapeutics, Kyoto University Hospital, Kyoto, Japan
| | - Atsushi Yonezawa
- Department of Clinical Pharmacology and Therapeutics, Kyoto University Hospital, Kyoto, Japan
- Division of Integrative Clinical Pharmacology, Faculty of Pharmacy, Keio University, Tokyo, Japan
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Narita Y, Matsushima T, Sakamoto Y, Matsuoka H, Tanioka H, Kawakami T, Shoji H, Mizukami T, Izawa N, Nishina T, Yamamoto Y, Mitani S, Nakamura M, Misumi T, Muro K. Chemotherapy after nivolumab for advanced gastric cancer (REVIVE): a prospective observational study. ESMO Open 2023; 8:102071. [PMID: 38016249 PMCID: PMC10774960 DOI: 10.1016/j.esmoop.2023.102071] [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: 07/04/2023] [Revised: 09/25/2023] [Accepted: 10/21/2023] [Indexed: 11/30/2023] Open
Abstract
BACKGROUND Nivolumab therapy is a standard-of-care treatment for heavily pretreated patients with advanced gastric cancer (AGC). Previous studies have reported improvement in the objective response rate to chemotherapy after nivolumab therapy for other types of cancer. This study evaluated the efficacy and safety of chemotherapy after nivolumab therapy in AGC. PATIENTS AND METHODS We conducted a prospective, multicenter, observational study in pretreated patients with nivolumab-refractory or -intolerant AGC. Patients received irinotecan, oxaliplatin-containing regimens, or trifluridine/tipiracil. The primary endpoint was overall survival. RESULTS A total of 199 patients were included (median age: 69 years; male: 70%; female: 30%). Median overall survival and progression-free survival were 7.5 months [95% confidence interval (CI): 6.7-9.7 months] and 2.9 months (95% CI: 2.2-3.5 months), respectively. Objective response and disease control rates were 16.8% (95% CI: 11.6% to 23.6%) and 18.9% (95% CI: 38.9% to 54.6%), respectively. A prognostic index using alkaline phosphatase and the Glasgow Prognostic Score was generated to classify patients into three risk groups (good, moderate, and poor). The hazard ratios of the moderate and poor groups to the good group were 1.88 (95% CI: 1.22-2.92) and 3.29 (95% CI: 1.92-5.63), respectively. At the initiation of chemotherapy, 42 patients had experienced immune-related adverse events due to prior nivolumab therapy. The most common grade 3-4 adverse events were neutropenia (7.5%), anemia (8.0%), and anorexia (7.5%). CONCLUSIONS The administration of cytotoxic chemotherapy after nivolumab therapy may give rise to a synergistic antitumor effect in AGC. Further investigation is warranted to confirm these findings.
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Affiliation(s)
- Y Narita
- Department of Clinical Oncology, Aichi Cancer Center Hospital, Nagoya
| | - T Matsushima
- Department of Gastroenterology, Saitama Cancer Center, Saitama
| | - Y Sakamoto
- Department of Medical Oncology, Osaki Citizen Hospital, Osaki
| | - H Matsuoka
- Department of Gastrointestinal Surgery School of Medicine, Fujita Health University Hospital, Toyoake
| | - H Tanioka
- Department of Clinical Oncology, Kawasaki Medical School, Kurashiki
| | - T Kawakami
- Division of Gastrointestinal Oncology, Shizuoka Cancer Center, Shizuoka
| | - H Shoji
- Department of Gastrointestinal Medical Oncology, National Cancer Center Hospital, Tokyo
| | - T Mizukami
- Department of Clinical Oncology, St. Marianna University School of Medicine, Kawasaki; Department of Medical Oncology, NTT Medical Center Tokyo, Tokyo
| | - N Izawa
- Department of Clinical Oncology, St. Marianna University School of Medicine, Kawasaki
| | - T Nishina
- Department of Gastrointestinal Medical Oncology, National Hospital Organization Shikoku Cancer Center, Matsuyama
| | - Y Yamamoto
- Department of Gastroenterology, University of Tsukuba Hospital, Tsukuba
| | - S Mitani
- Department of Medical Oncology, Faculty of Medicine, Kindai University, Osaka-Sayama
| | - M Nakamura
- Department of Gastroenterology, Sapporo City General Hospital, Sapporo
| | - T Misumi
- Department of Biostatistics, Yokohama City University School of Medicine, Yokohama, Japan
| | - K Muro
- Department of Clinical Oncology, Aichi Cancer Center Hospital, Nagoya.
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Seki K, Seki T, Imagama T, Matsuki Y, Kawakami T, Sakai T. Efficacy of repeated administration of intravenous acetaminophen for pain management after total knee arthroplasty. Acta Orthop Belg 2023; 89:469-475. [PMID: 37935231 DOI: 10.52628/89.3.10347] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2023]
Abstract
Intravenous acetaminophen is an integral component of multimodal postoperative pain management. This prospective study aims to assess the efficacy of the repeated administration of intravenous acetaminophen and the impact on postoperative patient satisfaction with postoperative pain management after total knee arthroplasty (TKA). We enrolled 98 patients scheduled for unilateral TKA. Patients were randomly assigned to receive either 1000 mg of intravenous acetaminophen at 6-hour intervals (AAP group) or not to receive intravenous acetaminophen (control group). All patients underwent single-shot femoral nerve block after general anesthesia, as well as intraoperative periarticular infiltration of analgesia prior to implantation. The primary outcome was the postoperative numerical rating scale (NRS) pain score at rest. The NRS score was measured just before the administration of study drugs, immediately after arrival in the ward (time 0), and at 6, 12, 18, 24, and 48 h (time 1 to time 5, respectively) postoperatively. We also evaluated the mean doses of rescue opioid use for 24 h postoperatively. At time 5, the AAP group had significantly improved mean NRS score than controls (3.0 vs. 4.0; P < 0.01). Rescue opioid use was significantly lower in the AAP group for 24 hours compared to controls (0.3 μg vs. 0.9 μg; P < 0.01). Repeated intravenous acetaminophen administration after TKA may provide better analgesia and reduce opioid use.
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Kawakami T, Teramoto T, Kakuta Y. Crystal structure of adenosine 5'-phosphosulfate kinase isolated from Archaeoglobus fulgidus. Biochem Biophys Res Commun 2023; 643:105-110. [PMID: 36592583 DOI: 10.1016/j.bbrc.2022.12.081] [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: 12/20/2022] [Accepted: 12/28/2022] [Indexed: 12/31/2022]
Abstract
The 3'-phosphoadenosine-5'-phosphosulfate (PAPS) molecule is essential during enzyme-catalyzed sulfation reactions as a sulfate donor and is an intermediate in the reduction of sulfate to sulfite in the sulfur assimilation pathway. PAPS is produced through a two-step reaction involving ATP sulfurylase and adenosine 5'-phosphosulfate (APS) kinase enzymes/domains. However, archaeal APS kinases have not yet been characterized and their mechanism of action remains unclear. Here, we first structurally characterized APS kinase from the hyperthermophilic archaeon Archaeoglobus fulgidus, (AfAPSK). We demonstrated the PAPS production activity of AfAPSK at the optimal growth temperature (83 °C). Furthermore, we determined the two crystal structures of AfAPSK: ADP complex and ATP analog adenylyl-imidodiphosphate (AMP-PNP)/Mg2+/APS complex. Structural and complementary mutational analyses revealed the catalytic and substrate recognition mechanisms of AfAPSK. This study also hints at the molecular basis behind the thermal stability of AfAPSK.
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Affiliation(s)
- Tomoya Kawakami
- Laboratory of Biophysical Chemistry, Department of Bioscience and Biotechnology, Faculty of Agriculture, Kyushu University, 744 Moto-oka, Nishi-ku, Fukuoka, 819-0395, Japan
| | - Takamasa Teramoto
- Laboratory of Biophysical Chemistry, Department of Bioscience and Biotechnology, Faculty of Agriculture, Kyushu University, 744 Moto-oka, Nishi-ku, Fukuoka, 819-0395, Japan.
| | - Yoshimitsu Kakuta
- Laboratory of Biophysical Chemistry, Department of Bioscience and Biotechnology, Faculty of Agriculture, Kyushu University, 744 Moto-oka, Nishi-ku, Fukuoka, 819-0395, Japan.
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Shoji H, Boku N, Kudo-Saito C, Nagashima K, Tsugaru K, Takahashi N, Kawakami T, Amanuma Y, Wakatsuki T, Okano N, Narita Y, Yamamoto Y, Kizawa R, Imazeki H, Aoki K, Muro K. 1217P Profiling of myeloid cells associated with prognosis in nivolumab monotherapy for advanced gastric cancer (WJOG10417GTR study). Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.07.1335] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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6
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Hara H, Masuishi T, Ando T, Kawakami T, Yamamoto Y, Sugimoto N, Shiraishi K, Esaki T, Negoro Y, Tsuzuki T, Sawai H, Nakamura M, Inagaki T, Shinohara Y, Kawakami H, Kawakami K, Katsuya H, Maeda O, Fujita Y, Yoshimura K, Nakajima T, Muro K. P-99 A multicenter phase II study of mFOLFOX6 in advanced gastric cancer patients with severe peritoneal metastases: WJOG10517G. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.04.189] [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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Yamazaki K, Taniguchi H, Masuishi T, Kawakami T, Onozawa Y, Honda K, Tsushima T, Hamauchi S, Mori K, Yasui H, Muro K. P-95 Bevacizumab, irinotecan and biweekly trifluridine/tipiracil for pretreated metastatic colorectal cancer: MODURATE, a phase Ib study. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.04.185] [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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8
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Matsuoka H, Narita Y, Misumi T, Sakamoto Y, Kawakami T, Tanioka H, Matsushima T, Miwa H, Shoji H, Ishiguro A, Fushida S, Miura K, Yamada T, Shinozaki K, Mizukami T, Moriwaki T, Mitani S, Nakamura M, Muro K, Nishina T. P-61 Impacts of salvage chemotherapy after nivolumab therapy (NIVO): A REVIVE substudy. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.04.151] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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9
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Satoh K, Kawakami T, Isobe N, Pasquier L, Tomita H, Zinn M, Matsumoto K. Versatile aliphatic polyester biosynthesis system for producing random and block copolymers composed of 2-, 3-, 4-, 5-, and 6-hydroxyalkanoates using the sequence-regulating polyhydroxyalkanoate synthase PhaC AR. Microb Cell Fact 2022; 21:84. [PMID: 35568875 PMCID: PMC9107728 DOI: 10.1186/s12934-022-01811-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [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: 03/23/2022] [Accepted: 05/01/2022] [Indexed: 11/13/2022] Open
Abstract
Background Polyhydroxyalkanoates (PHAs) are microbial polyesters synthesized by PHA synthases. Naturally occurring PHA copolymers possess a random monomer sequence. The development of PhaCAR, a unique sequence-regulating PHA synthase, has enabled the spontaneous biosynthesis of PHA block copolymers. PhaCAR synthesizes both a block copolymer poly(2-hydroxybutyrate)-b-poly(3-hydroxybutyrate) [P(2HB)-b-P(3HB)], and a random copolymer, poly(3HB-co-3-hydroxyhexanoate), indicating that the combination of monomers determines the monomer sequence. Therefore, in this study, we explored the substrate scope of PhaCAR and the monomer sequences of the resulting copolymers to identify the determinants of the monomer sequence. PhaCAR is a class I PHA synthase that is thought to incorporate long-main-chain hydroxyalkanoates (LMC HAs, > C3 in the main [backbone] chain). Thus, the LMC monomers, 4-hydroxy-2-methylbutyrate (4H2MB), 5-hydroxyvalerate (5HV), and 6-hydroxyhexanoate (6HHx), as well as 2HB, 3HB, and 3-hydroxypropionate (3HP) were tested. Results Recombinant Escherichia coli harboring PhaCAR, CoA transferase and CoA ligase genes was used for PHA production. The medium contained the monomer precursors, 2HB, 3HB, 3HP, 4H2MB, 5HV, and 6HHx, either individually or in combination. As a result, homopolymers were obtained only for 3HB and 3HP. Moreover, 3HB and 3HP were randomly copolymerized by PhaCAR. 3HB-based binary copolymers P(3HB-co-LMC HA)s containing up to 2.9 mol% 4H2MB, 4.8 mol% 5HV, or 1.8 mol% 6HHx were produced. Differential scanning calorimetry analysis of the copolymers indicated that P(3HB-co-LMC HA)s had a random sequence. In contrast, combining 3HP and 2HB induced the synthesis of P(3HP)-b-P(2HB). Similarly, P(2HB) segment-containing block copolymers P(3HB-co-LMC HA)-b-P(2HB)s were synthesized. Binary copolymers of LMC HAs and 2HB were not obtained, indicating that the 3HB or 3HP unit is essential to the polymer synthesis. Conclusion PhaCAR possesses a wide substrate scope towards 2-, 3-, 4-, 5-, and 6-hydroxyalkanoates. 3HB or 3HP units are essential for polymer synthesis using PhaCAR. The presence of a 2HB monomer is key to synthesizing block copolymers, such as P(3HP)-b-P(2HB) and P(3HB-co-LMC HA)-b-P(2HB)s. The copolymers that did not contain 2HB units had a random sequence. This study’s results provide insights into the mechanism of sequence regulation by PhaCAR and pave the way for designing PHA block copolymers. Supplementary Information The online version contains supplementary material available at 10.1186/s12934-022-01811-7.
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Affiliation(s)
- Keigo Satoh
- Graduate School of Chemical Sciences and Engineering, Hokkaido University, N13W8, Kitaku, Sapporo, 060-8628, Japan
| | - Tomoya Kawakami
- Graduate School of Chemical Sciences and Engineering, Hokkaido University, N13W8, Kitaku, Sapporo, 060-8628, Japan
| | - Nagi Isobe
- Graduate School of Chemical Sciences and Engineering, Hokkaido University, N13W8, Kitaku, Sapporo, 060-8628, Japan
| | - Loïc Pasquier
- Department of Engineering, Hokkaido University, N13W8, Kitaku, Sapporo, 060-8628, Japan.,Institute of Life Technologies, University of Applied Sciences and Arts Western Switzerland (HES-SO Valais-Wallis), Sion, Switzerland
| | - Hiroya Tomita
- Division of Applied Chemistry, Faculty of Engineering, Hokkaido University, N13W8, Kitaku, Sapporo, 060-8628, Japan
| | - Manfred Zinn
- Institute of Life Technologies, University of Applied Sciences and Arts Western Switzerland (HES-SO Valais-Wallis), Sion, Switzerland
| | - Ken'ichiro Matsumoto
- Division of Applied Chemistry, Faculty of Engineering, Hokkaido University, N13W8, Kitaku, Sapporo, 060-8628, Japan.
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10
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Kato K, Masuishi T, Fushiki K, Nakano S, Kawamoto Y, Narita Y, Tsushima T, Harada K, Kadowaki S, Todaka A, Yuki S, Tajika M, Machida N, Komatsu Y, Yasui H, Muro K, Kawakami T. Impact of tumor growth rate during preceding treatment on tumor response to nivolumab or irinotecan in advanced gastric cancer. ESMO Open 2021; 6:100179. [PMID: 34119801 PMCID: PMC8209093 DOI: 10.1016/j.esmoop.2021.100179] [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: 01/25/2021] [Revised: 05/12/2021] [Accepted: 05/16/2021] [Indexed: 11/28/2022] Open
Abstract
Background Nivolumab (NIVO) and irinotecan (IRI) are standard treatments for refractory advanced gastric cancer (AGC); however, it is unclear which drug should be administered first or in which cases. The tumor growth rate (TGR) during preceding treatment is reported to be associated with tumor response in metastatic colorectal cancer patients treated with regorafenib or trifluridine/tipiracil, suggesting that TGR may be useful for drug selection. Therefore, we evaluated the association between TGR during preceding treatment and the tumor response to NIVO or IRI. Patients and methods We retrospectively evaluated consecutive AGC patients treated with NIVO or IRI and divided them into slow-growing (Slow) and rapid-growing (Rapid) groups according to TGR and the presence or absence of new lesions (NL+/NL−, respectively) during preceding treatment (Slow group: NL− with low TGR <0.30%/day; Rapid group: NL+ or high TGR ≥0.30%/day). Results A total of 117 patients (Rapid/Slow groups, 72/45; NIVO/IRI groups, 32/85) were eligible. All baseline characteristics except peritoneal metastases were similar between patients treated with NIVO and IRI in the Rapid and Slow groups. The response rate was significantly higher in patients treated with NIVO compared with IRI [31%/3%; odds ratio (OR), 13.8; P = 0.01; adjusted OR, 52; P = 0.002] in the Slow group, but there was no difference between patients treated with NIVO and IRI (5%/8%; OR, 0.68; P = 0.73; adjusted OR, 0.94; P = 0.96) in the Rapid group. Disease control rate, progression-free survival, and overall survival were consistent with these results. Conclusions Our findings suggest that NIVO treatment is a more favorable option for patients with slow-growing tumors, and NIVO and IRI are similarly recommended for patients with rapid-growing tumors in refractory AGC. TGR and NL emergence during preceding treatment may be helpful for drug selection and warrant further investigation. NIVO and IRI are standard treatments for refractory AGC, although it is unclear which should be administered first. TGR may be useful for drug selection, therefore we evaluated the association between TGR and the tumor response to NIVO or IRI. In the Slow group, the response rate (RR) was significantly higher in patients treated with NIVO compared with IRI. In the Rapid group, there was no significant difference in RR between the NIVO and IRI groups. TGR and NL emergence during preceding treatment may be useful for drug selection.
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Affiliation(s)
- K Kato
- Department of Clinical Oncology, Aichi Cancer Center Hospital, Nagoya, Japan
| | - T Masuishi
- Department of Clinical Oncology, Aichi Cancer Center Hospital, Nagoya, Japan.
| | - K Fushiki
- Division of Gastrointestinal Oncology, Shizuoka Cancer Center, Shizuoka, Japan
| | - S Nakano
- Cancer Center, Hokkaido University Hospital, Sapporo, Japan
| | - Y Kawamoto
- Cancer Center, Hokkaido University Hospital, Sapporo, Japan
| | - Y Narita
- Department of Clinical Oncology, Aichi Cancer Center Hospital, Nagoya, Japan
| | - T Tsushima
- Division of Gastrointestinal Oncology, Shizuoka Cancer Center, Shizuoka, Japan
| | - K Harada
- Department of Gastroenterology and Hepatology, Hokkaido University Hospital, Sapporo, Japan
| | - S Kadowaki
- Department of Clinical Oncology, Aichi Cancer Center Hospital, Nagoya, Japan
| | - A Todaka
- Division of Gastrointestinal Oncology, Shizuoka Cancer Center, Shizuoka, Japan
| | - S Yuki
- Department of Gastroenterology and Hepatology, Hokkaido University Hospital, Sapporo, Japan
| | - M Tajika
- Department of Endoscopy, Aichi Cancer Center Hospital, Nagoya, Japan
| | - N Machida
- Division of Gastrointestinal Oncology, Shizuoka Cancer Center, Shizuoka, Japan
| | - Y Komatsu
- Cancer Center, Hokkaido University Hospital, Sapporo, Japan
| | - H Yasui
- Division of Gastrointestinal Oncology, Shizuoka Cancer Center, Shizuoka, Japan
| | - K Muro
- Department of Clinical Oncology, Aichi Cancer Center Hospital, Nagoya, Japan
| | - T Kawakami
- Division of Gastrointestinal Oncology, Shizuoka Cancer Center, Shizuoka, Japan
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11
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Li X, Qian H, Natsuaki Y, Koga H, Kawakami T, Tateishi C, Tsuruta D, Ishii N, Hashimoto T. Clinical and immunological findings in 55 patients with anti-laminin 332-type mucous membrane pemphigoid. Br J Dermatol 2021; 185:449-451. [PMID: 33811327 DOI: 10.1111/bjd.20099] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2020] [Revised: 03/30/2021] [Accepted: 03/31/2021] [Indexed: 11/26/2022]
Affiliation(s)
- X Li
- Department of Dermatology, Kurume University School of Medicine, and Kurume University Institute of Cutaneous Cell Biology, Kurume, Fukuoka, Japan.,Central Laboratory, Dermatology Hospital of Jiangxi Province, Dermatology Institute of Jiangxi Province, and the Affiliated Dermatology Hospital of Nanchang University, Nanchang, 330001, China
| | - H Qian
- Department of Dermatology, Kurume University School of Medicine, and Kurume University Institute of Cutaneous Cell Biology, Kurume, Fukuoka, Japan.,Central Laboratory, Dermatology Hospital of Jiangxi Province, Dermatology Institute of Jiangxi Province, and the Affiliated Dermatology Hospital of Nanchang University, Nanchang, 330001, China
| | - Y Natsuaki
- Department of Dermatology, Kurume University School of Medicine, and Kurume University Institute of Cutaneous Cell Biology, Kurume, Fukuoka, Japan
| | - H Koga
- Department of Dermatology, Kurume University School of Medicine, and Kurume University Institute of Cutaneous Cell Biology, Kurume, Fukuoka, Japan
| | - T Kawakami
- Department of Dermatology, Tohoku Medical and Pharmaceutical University, Sendai, Miyagi, Japan
| | - C Tateishi
- Department of Dermatology, Osaka City University Graduate School of Medicine, Osaka, Japan
| | - D Tsuruta
- Department of Dermatology, Kurume University School of Medicine, and Kurume University Institute of Cutaneous Cell Biology, Kurume, Fukuoka, Japan.,Department of Dermatology, Osaka City University Graduate School of Medicine, Osaka, Japan
| | - N Ishii
- Department of Dermatology, Kurume University School of Medicine, and Kurume University Institute of Cutaneous Cell Biology, Kurume, Fukuoka, Japan
| | - T Hashimoto
- Department of Dermatology, Kurume University School of Medicine, and Kurume University Institute of Cutaneous Cell Biology, Kurume, Fukuoka, Japan.,Department of Dermatology, Osaka City University Graduate School of Medicine, Osaka, Japan
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12
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Kawakami T, Tamura Y, Dong Y, Yoshinari M, Nishibata Y, Masuda S, Tomaru U, Ishizu A. 404 Anti-phosphatidylserine/prothrombin complex antibodies in patients with cutaneous vasculitis: Possible involvement in the pathogenesis. J Invest Dermatol 2021. [DOI: 10.1016/j.jid.2021.02.427] [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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13
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Miyagawa K, Yamanaka S, Isobe H, Shoji M, Kawakami T, Taniguchi M, Okumura M, Yamaguchi K. Electronic and spin structures of CaMn 4O x clusters in the S 0 state of the oxygen evolving complex of photosystem II. Domain-based local pair natural orbital (DLPNO) coupled-cluster (CC) calculations using optimized geometries and natural orbitals (UNO) by hybrid density functional theory (HDFT) calculations. Phys Chem Chem Phys 2021; 22:27191-27205. [PMID: 33226053 DOI: 10.1039/d0cp04762g] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [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
Domain-based local pair natural orbital (DLPNO) coupled cluster single and double (CCSD) with triple perturbation (T) correction methods were performed to elucidate the relative stabilities of ten different intermediate structures of the CaMn4Ox cluster in the S0 state of the oxygen evolving complex (OEC) of photosystem II (PSII). Full geometry optimizations of all the S0 intermediates were performed by the UB3LYP-D3/Def2-TZVP methods, providing the assumed geometrical structures and starting natural orbitals (UNO) for DLPNO-CCSD(T)/Def2TZVP calculations. The effective exchange integrals (J) for the spin Hamiltonian models for the ten intermediates were obtained by the UB3LYP/Def2-TZVP calculations followed by the general spin projections. DLPNO-CCSD(T) calculations followed by the CBS extrapolation procedure elucidated that the (II, III, IV, IV) and (III, III, III, IV) valence states in the CaMn4O5 cluster of the OEC of the PS II were nearly degenerated in energy in the S0 state, indicating an important role of dynamical electron correlation effects for the valence and spin fluctuations in strongly correlated electron systems (SCESs) consisting of 3d transition metals.
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Affiliation(s)
- K Miyagawa
- Institute for Scientific and Industrial Research, Osaka University, Ibaraki, Osaka 567-0047, Japan.
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Kawakami T, Koike A, Maehara T, Hayashi T, Fujimori K. Bicarbonate enhances the inflammatory response by activating JAK/STAT signalling in LPS + IFN-γ-stimulated macrophages. J Biochem 2021; 167:623-631. [PMID: 31960927 DOI: 10.1093/jb/mvaa010] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2019] [Accepted: 01/14/2020] [Indexed: 12/14/2022] Open
Abstract
Macrophages, which develop by changing their functions according to various environmental conditions and stimuli, defend against the pathogens and play roles in homoeostasis and disease states. Bicarbonate (HCO3-) is important in the maintenance of intracellular and extracellular pH in the body. However, the effects of bicarbonate on macrophage function have not been examined. In this study, we investigated the effects of bicarbonate on macrophage activation in lipopolysaccharide (LPS) and interferon (IFN)-γ (LPS + IFN-γ)-stimulated murine macrophage-like RAW264.7 cells. The expression of the interleukin (IL)-6, inducible nitric oxide (NO) synthase and cyclooxygenase-2 genes was enhanced by sodium bicarbonate (NaHCO3) in a concentration-dependent manner in LPS + IFN-γ-stimulated RAW264.7 cells. The production of IL-6, NO2- and prostaglandin E2 was also increased by treatment with NaHCO3 in these cells. Moreover, NaHCO3-mediated elevation of inflammatory gene expression was abrogated by solute carrier (SLC) transporter inhibitors. Furthermore, its NaHCO3-mediated activation was negated by a JAK inhibitor , tofacitinib. NaHCO3-enhanced phosphorylation of STAT1, and its enhancement was abrogated by pre-treating with SLC transporter inhibitors in LPS + IFN-γ-stimulated RAW264.7 cells. In addition, similar results were obtained in murine bone marrow-derived macrophages. These results indicate that bicarbonate enhanced the inflammatory response through the JAK/STAT signalling in LPS + IFN-γ-stimulated macrophages.
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Affiliation(s)
- Tomoya Kawakami
- Department of Cardiovascular Pharmacotherapy and Toxicology.,Department of Pathobiochemistry, Osaka University of Pharmaceutical Sciences, 4-20-1 Nasahara, Takatsuki, Osaka 569-1094, Japan
| | - Atsushi Koike
- Department of Pathobiochemistry, Osaka University of Pharmaceutical Sciences, 4-20-1 Nasahara, Takatsuki, Osaka 569-1094, Japan
| | - Toko Maehara
- Department of Pathobiochemistry, Osaka University of Pharmaceutical Sciences, 4-20-1 Nasahara, Takatsuki, Osaka 569-1094, Japan
| | | | - Ko Fujimori
- Department of Pathobiochemistry, Osaka University of Pharmaceutical Sciences, 4-20-1 Nasahara, Takatsuki, Osaka 569-1094, Japan
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15
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Miyagawa K, Kawakami T, Suzuki Y, Isobe H, Shoji M, Yamanaka S, Okumura M, Nakajima T, Yamaguchi K. Relative stability among intermediate structures in S2 state of CaMn4O5 cluster in PSII by using hybrid-DFT and DLPNO-CC methods and evaluation of magnetic interactions between Mn ions. J Photochem Photobiol A Chem 2021. [DOI: 10.1016/j.jphotochem.2020.112923] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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16
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Yamaguchi K, Yamanaka S, Isobe H, Shoji M, Miyagawa K, Kawakami T. Theory of chemical bonds in metalloenzymes XXIII fundamental principles for the photo-induced water oxidation in oxygen evolving complex of photosystem II. Mol Phys 2020. [DOI: 10.1080/00268976.2020.1725168] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- K. Yamaguchi
- The Institute for Scientific and Industrial Research, Osaka University, Osaka, Japan
- Graduate School of Science, Osaka University, Toyonaka, Japan
- RIKEN Center for Computational Science, Kobe, Japan
- Institute for Nanoscience Design, Osaka University, Toyonaka, Japan
- Division of Quantum Information and Quantum Biology (QIQB), Osaka University, Toyonaka, Japan
| | - S. Yamanaka
- Graduate School of Science, Osaka University, Toyonaka, Japan
- Division of Quantum Information and Quantum Biology (QIQB), Osaka University, Toyonaka, Japan
| | - H. Isobe
- Graduate School of Natural Science and Technology, Okayama University, Okayama, Japan
| | - M. Shoji
- Center of Computational Sciences, Tsukuba University, Tsukuba, Japan
| | - K. Miyagawa
- The Institute for Scientific and Industrial Research, Osaka University, Osaka, Japan
| | - T. Kawakami
- Graduate School of Science, Osaka University, Toyonaka, Japan
- RIKEN Center for Computational Science, Kobe, Japan
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17
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Shinya Y, Kimura M, Kawakami T, Hiraide T, Moriyama H, Kataoka M, Endo J, Itabashi Y, Murata M, Kohno T, Fukuda K. Efficacy and outcomes of balloon pulmonary angioplasty in elderly vs non-elderly chronic thromboembolic pulmonary hypertension patients. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.2263] [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
Balloon pulmonary angioplasty (BPA) has been reported as an effective and safe treatment for patients with chronic thromboembolic pulmonary hypertension (CTEPH). However, its safety and efficacy in elderly patients remains unknown.
Purpose
We investigated the effect of BPA on hemodynamics and respiratory parameters, functional capacity, and short- and long-term outcome in elderly patients.
Methods
From November 2012 to May 2018, 141 consecutive CTEPH patients who underwent BPA in a single university hospital were enrolled (age: 65 [54.5–74] years old, WHO functional class [WHO-FC] II/III/IV; 35/96/10). Patients were divided into two groups according to the age; elderly (≥75 years, N=32) and young groups (<75 years, N=109). Hemodynamics (right-sided heart catheterization), biomarkers (brain natriuretic peptide), respiratory function (spirometry and diffusion capacity measurement), and functional capacity (6-minute walk distance [6MWD] and WHO-FC) were evaluated at baseline and 1-year post BPA. Procedure-related complications (in hospital death, use of percutaneous cardiopulmonary support [PCPS], and pulmonary injury) and all cause death during the follow up period were also assessed.
Results
At baseline, although elderly group had less severe hemodynamics (mPAP: 33.1±6.7 vs 39.0±11.8 mmHg, p<0.05), they had poor exercise capacity and reduced pulmonary diffusion capacity, compared with young group (6MWD: 264.6±101.3 vs 369.7±105.2 m, %DLco: 42.0±12.0 vs 50.2±12.7%, all p<0.05). BPA improved hemodynamics, biomarkers, exercise capacity, and pulmonary diffusion capacity in both elderly and young groups (all p<0.05). There was no in-hospital death or use of PCPS in both groups, although the incidence of pulmonary injury was higher in elderly group (14.3% vs 5.3%, p<0.01). Under the normalized hemodynamics 1-year after BPA in both groups, exercise capacity and pulmonary diffusion capacity were worse in the elderly group than young groups (p<0.01). The incidence of all-cause death in the follow up period was higher in elderly group, all of which were due to non-pulmonary hypertension (PH)-related death (p<0.01).
Conclusion
BPA was effective in improving hemodynamics and respiratory parameters and functional capacity, in associated with no critical complication, regardless of the age. Elderly patients who were treated with BPA were associated with higher incidence of non-PH-related death.
Changes of mean PAP in the two groups
Funding Acknowledgement
Type of funding source: None
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Affiliation(s)
- Y Shinya
- Keio University School of Medicine, Department of Cardiology, Tokyo, Japan
| | - M Kimura
- Keio University School of Medicine, Department of Cardiology, Tokyo, Japan
| | - T Kawakami
- Keio University School of Medicine, Department of Cardiology, Tokyo, Japan
| | - T Hiraide
- Keio University School of Medicine, Department of Cardiology, Tokyo, Japan
| | - H Moriyama
- Keio University School of Medicine, Department of Cardiology, Tokyo, Japan
| | - M Kataoka
- Keio University School of Medicine, Department of Cardiology, Tokyo, Japan
| | - J Endo
- Keio University School of Medicine, Department of Cardiology, Tokyo, Japan
| | - Y Itabashi
- Keio University School of Medicine, Department of Cardiology, Tokyo, Japan
| | - M Murata
- Keio University School of Medicine, Department of Cardiology, Tokyo, Japan
| | - T Kohno
- Kyorin University School of Medicine, Department of Cardiovascular Medicine, Tokyo, Japan
| | - K Fukuda
- Keio University School of Medicine, Department of Cardiology, Tokyo, Japan
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Kimura M, Kohno T, Kawakami T, Shinya T, Hiraide T, Moriyama H, Kataoka M, Endo J, Itabash Y, Mitsushige M, Fukuda K. De-escalation/discontinuation of oxygen-therapy and medication is feasible and safe in chronic thromboembolic pulmonary hypertension patients treated with balloon pulmonary angioplasty. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.2281] [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
There has been increasing evidence of the efficacy of balloon pulmonary angioplasty (BPA) in improving the hemodynamics, exercise capacity, and biomarkers of patients with chronic thromboembolic pulmonary hypertension (CTEPH). However, there is no consensus on the adjustment of home oxygen therapy (HOT) and pulmonary hypertension (PH)-specific medications after BPA in patients with CTEPH.
Purpose
We aimed to examine the current status of the de-escalation/discontinuation of HOT and PH-specific medications post-BPA, and clarify its effect on subsequent hemodynamics, biomarkers, and long-term clinical outcomes.
Methods and results
From November 2012 to July 2019, 134 consecutive CTEPH patients who underwent BPA at a single university hospital were enrolled (age; 63.6±13.4 years, female; n=87 [64.9%], WHO functional class [WHO-FC] II/III/IV; 33/92/9). Hemodynamic data, functional capacity (6-minute walk distance and WHO-FC), biomarkers (brain natriuretic peptide [BNP] and high-sensitivity troponin T [hs-TropT]), and respiratory function were evaluated at baseline, immediately and 1 year post-BPA. Clinical outcomes (all-cause death and heart failure [HF] admission) were also assessed during the follow up period. The total number of sessions was 6.3±2.0, and the number of target vessels was 14.3±2.0. Mean pulmonary arterial pressure decreased from 37.8±11.2 to 20.4±5.1 mmHg 1-year after BPA (p<0.01). The proportion of patients who required HOT (at rest or on exertion) and combination medical therapy (≥2 PH-specific medications) decreased 1 year post-BPA (from 59.0% to 7.5%, and from 41.8% to 10.4%, respectively; Figure). Among 79 patients who required HOT during daytime, 64 patients (81.0%) discontinued HOT just after BPA completion. Among 56 patients who required combination medical therapy, 29 (51.8%) discontinued combination therapy. Baseline factors influencing the continuation of HOT and combination medical therapy post-BPA were almost identical (i.e. lower exercise capacity and pulmonary diffusion capacity, and worse hemodynamics). Results showed that discontinuation of HOT and combination medical therapy did not affect the maintenance of improved hemodynamics and levels of BNP and hs-TropT, and no adverse clinical outcomes (all-cause death and HF hospitalization) were observed during 1 year post-BPA.
Conclusions
Most CTEPH patients discontinued HOT and PH-specific combination medical therapy after BPA, which was not associated with the deterioration of hemodynamics, functional capacity, or biomarkers. No adverse long-term outcomes were observed. De-escalation/discontinuation of HOT and PH-specific combination medical therapy after BPA is feasible and safe for patients with CTEPH.
De-escalation of HOT and medical therapy
Funding Acknowledgement
Type of funding source: None
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Affiliation(s)
- M Kimura
- Keio University Hospital, Cardiology, Tokyo, Japan
| | - T Kohno
- Kyorin University School of Medicine, Department of Cardiovascular Medicine, Tokyo, Japan
| | - T Kawakami
- Keio University Hospital, Cardiology, Tokyo, Japan
| | - T Shinya
- Keio University Hospital, Cardiology, Tokyo, Japan
| | - T Hiraide
- Keio University Hospital, Cardiology, Tokyo, Japan
| | - H Moriyama
- Keio University Hospital, Cardiology, Tokyo, Japan
| | - M Kataoka
- Keio University Hospital, Cardiology, Tokyo, Japan
| | - J Endo
- Keio University Hospital, Cardiology, Tokyo, Japan
| | - Y Itabash
- Keio University Hospital, Cardiology, Tokyo, Japan
| | - M Mitsushige
- Keio University Hospital, Cardiology, Tokyo, Japan
| | - K Fukuda
- Keio University Hospital, Cardiology, Tokyo, Japan
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19
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Kawakami T, Saitoh N, Asukai Y, Wada S, Sasaki H, Takahashi H, Hatori K, Itou N, Fukunaga H, Toubaru T. P377Zero-fluoroscopy ablation with ultrasound-guided sheath insertion. Europace 2020. [DOI: 10.1093/europace/euaa162.195] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
Radiation exposure during catheter ablation procedures is a risk for both the patient and electrophysiology staff. Recently, the feasibility and effectiveness of zero-fluoroscopy ablation have been shown. However, ensuring a safe sheath insertion through the venous system toward the heart is a concern in catheter ablation using the zero-fluoroscopy technique.
Purpose
The objective of this study was to confirm feasibility and safety for zero-fluoroscopy ablation using ultrasound-guided sheath insertion.
Methods
Zero-fluoroscopy catheter ablation was performed in 220 patients (185 patients with atrial fibrillation (AF), 26 patients with supraventricular tachycardia (SVT), and nine patients with ventricular arrhythmias (VA)) using a 3-dimensional electro-anatomical mapping system, contact force monitoring, and intracardiac echocardiography (ICE) imaging. In all cases, ultrasound-guided sheath insertion was performed through the femoral vein. In 6 cases of VA, the retrograde approach through the femoral artery was performed with ICE imaging and contact-force monitoring. The endpoint of ablation for AF was pulmonary vein ablation in all cases and addition of left atrial posterior wall isolation in persistent AF cases. The endpoint of ablation for SVT and VA was noninducibility after ablation.
Results
The endpoints of ablation were achieved in all cases. The fluoroscopic time during ablation procedures was 0 seconds. There were two complications (one cardiac tamponade and one acute heart failure). There were no complications related to sheath insertion.
Conclusions
Zero-fluoroscopy catheter ablation with ultrasound-guided sheath insertion may be feasible and can be performed safely. This method eliminates exposure radiation safely, which is a concern of zero-fluoroscopy endocardial catheter ablation.
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Affiliation(s)
- T Kawakami
- Kawasaki Saiwai Hospital, Kawasaki City, Japan
| | - N Saitoh
- Kawasaki Saiwai Hospital, Kawasaki City, Japan
| | - Y Asukai
- Kawasaki Saiwai Hospital, Kawasaki City, Japan
| | - S Wada
- Kawasaki Saiwai Hospital, Kawasaki City, Japan
| | - H Sasaki
- Kawasaki Saiwai Hospital, Kawasaki City, Japan
| | - H Takahashi
- Kawasaki Saiwai Hospital, Kawasaki City, Japan
| | - K Hatori
- Kawasaki Saiwai Hospital, Kawasaki City, Japan
| | - N Itou
- Kawasaki Saiwai Hospital, Kawasaki City, Japan
| | - H Fukunaga
- Kawasaki Saiwai Hospital, Kawasaki City, Japan
| | - T Toubaru
- Kawasaki Saiwai Hospital, Kawasaki City, Japan
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Smith M, Turner K, Bond R, Kawakami T, Roos LL. The Concept Dictionary and Glossary at MCHP: Tools and Techniques to Support a Population Research Data Repository. Int J Popul Data Sci 2019; 4:1124. [PMID: 32935033 PMCID: PMC7482512 DOI: 10.23889/ijpds.v4i1.1124] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [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] [Indexed: 11/29/2022] Open
Abstract
The Manitoba Centre for Health Policy’s Concept Dictionary and Glossary, and the Data Repository they document, broaden the analytic possibilities associated with administrative data. The aim of the Repository is to describe and explain patterns of health care and illness, while the Concept Dictionary and Glossary create consistency in documenting research methodologies. The Concept Dictionary alone contains detailed operational definitions and programming code for measures used in MCHP research that are reusable in future projects. Making these tools available on the internet allows reaching a heterogeneous audience of academic and government health service partners, epidemiologists, planners, programmers, clinicians, and students extending around the globe. They aid in the retention of corporate knowledge, facilitate researcher/analyst communication, and enhance the Centre’s knowledge translation activities. Such documentation has saved countless hours for programmers, analysts and researchers who frequently need to tread paths previously taken by others.
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Affiliation(s)
- M Smith
- Manitoba Centre for Health Policy, Rady Faculty of Health Sciences, University of Manitoba, 408-727 McDermot Ave, Winnipeg, Manitoba, Canada R3E 3P5
| | - K Turner
- Manitoba Centre for Health Policy, Rady Faculty of Health Sciences, University of Manitoba, 408-727 McDermot Ave, Winnipeg, Manitoba, Canada R3E 3P5
| | - R Bond
- Manitoba Centre for Health Policy, Rady Faculty of Health Sciences, University of Manitoba, 408-727 McDermot Ave, Winnipeg, Manitoba, Canada R3E 3P5
| | - T Kawakami
- Manitoba Centre for Health Policy, Rady Faculty of Health Sciences, University of Manitoba, 408-727 McDermot Ave, Winnipeg, Manitoba, Canada R3E 3P5
| | - L L Roos
- Manitoba Centre for Health Policy, Rady Faculty of Health Sciences, University of Manitoba, 408-727 McDermot Ave, Winnipeg, Manitoba, Canada R3E 3P5
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21
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Kawakami T, Masuishi T, Kawamoto Y, Go H, Shirasu H, Kato K, Kumanishi R, Sawada K, Yamamoto K, Yuki S, Komatsu Y, Yasui H, Muro K, Yamanaka T, Yamazaki K. The impact of late-line treatment on overall survival (OS) from the initiation of first-line chemotherapy (CT) for patients (pts) with metastatic colorectal cancer (mCRC). Ann Oncol 2019. [DOI: 10.1093/annonc/mdz246.064] [Citation(s) in RCA: 1] [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: 11/14/2022] Open
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22
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Kanehama N, Kimura S, Kawakami T, Tateishi R, Tachibana S, Hayasaka K, Arai H, Hiroki J, Yoshioka K, Kuroda S, Ueshima D, Iwatsuka R, Hayashi T, Mizukami A, Matsumura A. P6154Association between n-3 and n-6 polyunsaturated fatty acids and plaque vulnerability by optical coherence tomography in acute myocardial infarction patients. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz746.0760] [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 values of n-3 and n-6 polyunsaturated fatty acids (PUFAs) like low eicosapentaenoic acid (EPA) /arachidonic acid (AA) ratio are known to be associated with cardiovascular events, however their relationship with coronary plaque vulnerability in acute myocardial infarction (AMI) is not revealed.
Purpose
We evaluated the relationship between n-3 and n-6 PUFAs and coronary plaque vulnerability assessed by optical coherence tomography (OCT) in AMI patients.
Methods
We investigated 79 AMI lesions (51 ST elevated myocardial infarction (STEMI) lesions and 28 non-STEMI lesions) that had undergone emergency percutaneous coronary intervention using OCT. Coronary plaque characteristics by OCT were compared with n-3 and n-6 PUFAs values which were measured on admission.
Results
Of all AMI lesions (n=79), 43 thin-cap fibroatheroma (TCFA) and 35 plaque rapture (PR) were detected by OCT. Lesions with TCFA had no significant relationship with n-3 and n-6 PUFAs values, whereas lesion with PR had significantly lower EPA values than those without (55.8±29.5 vs 74.3±37.1 μg/ml, p=0.018). Median low-density lipoprotein (LDL) cholesterol value was 117 (98–137) mg/dl and sub-analysis in patients who had lower LDL cholesterol values than median (n=39) revealed that EPA values were significantly lower in lesions with TCFA (56.3±30.9 vs 85.3±47.7 μg/ml, p=0.03). In STEMI patients, the values of EPA and EPA/AA ratio were significantly lower in lesions with TCFA (EPA: 55.5±22.8 vs 80.8±46.1 μg/ml, p=0.01; EPA/AA ratio: 0.34±0.16 vs 0.50±0.36, p=0.03). STEMI patients who had lower LDL cholesterol values <114 mg/dl of median (n=26), the values of EPA, EPA/AA ratio, and EPA+ docosahexaenoic acid (DHA) /AA ratio were significantly lower in lesions with TCFA (EPA: 51.4±20.7 vs 93.1±53.0 μg/ml, p=0.01; EPA/AA ratio: 0.37±0.16 vs 0.67±0.41, p=0.01; EPA+DHA/AA ratio: 1.13±0.41 vs 1.63±0.76, p=0.04). In STEMI patients with lower LDL cholesterol values, EPA/AA ratio positively correlated with fibrous cap thickness (Spearman, ρ=0.35, p=0.08). The cutoff value of EPA/AA ratio predicting the existence of TCFA was 0.52 (area under the curve 0.78, sensitivity 93.8%, specificity 70.0%, p=0.02).
Conclusion
This study demonstrated that n-3 and n-6 PUFAs values were associated with coronary plaque vulnerability by OCT in AMI patients, especially in STEMI. These results suggest that n-3 and n-6 PUFAs may be residual risk markers of severe acute cardiovascular events in patients with low LDL cholesterol values.
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Affiliation(s)
- N Kanehama
- Kameda Medical Center, Cardiology, Kamogawa, Japan
| | - S Kimura
- Yokohama Minami Kyosai Hospital, Cardiology, Yokohama, Japan
| | - T Kawakami
- Kameda Medical Center, Cardiology, Kamogawa, Japan
| | - R Tateishi
- Kameda Medical Center, Cardiology, Kamogawa, Japan
| | - S Tachibana
- Kameda Medical Center, Cardiology, Kamogawa, Japan
| | - K Hayasaka
- Kameda Medical Center, Cardiology, Kamogawa, Japan
| | - H Arai
- Kameda Medical Center, Cardiology, Kamogawa, Japan
| | - J Hiroki
- Kameda Medical Center, Cardiology, Kamogawa, Japan
| | - K Yoshioka
- Kameda Medical Center, Cardiology, Kamogawa, Japan
| | - S Kuroda
- Kameda Medical Center, Cardiology, Kamogawa, Japan
| | - D Ueshima
- Kameda Medical Center, Cardiology, Kamogawa, Japan
| | - R Iwatsuka
- Kameda Medical Center, Cardiology, Kamogawa, Japan
| | - T Hayashi
- Kameda Medical Center, Cardiology, Kamogawa, Japan
| | - A Mizukami
- Kameda Medical Center, Cardiology, Kamogawa, Japan
| | - A Matsumura
- Kameda Medical Center, Cardiology, Kamogawa, Japan
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Miyagawa K, Kawakami T, Isobe H, Shoji M, Yamanaka S, Nakatani K, Okumura M, Nakajima T, Yamaguchi K. Domain-based local pair natural orbital CCSD(T) calculations of six different S1 structures of oxygen evolving complex of photosystem II. Proposal of multi-intermediate models for the S1 state. Chem Phys Lett 2019. [DOI: 10.1016/j.cplett.2019.136660] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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Miyagawa K, Kawakami T, Suzuki Y, Isobe H, Shoji M, Yamanaka S, Okumura M, Nakajima T, Yamaguchi K. Domain-based local pair natural orbital CCSD(T) calculations of strongly correlated electron systems: Examination of dynamic equilibrium models based on multiple intermediates in S1 state of photosystem II. Mol Phys 2019. [DOI: 10.1080/00268976.2019.1666171] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- K. Miyagawa
- Institute for Scientific and Industrial Research, Osaka University, Osaka 567-0047, Japan
| | - T. Kawakami
- Graduate School of Science, Osaka University, Toyonaka 560-0043, Japan
- RIKEN Center for Computational Science, Kobe, Hyogo 650-0047, Japan
| | - Y. Suzuki
- Graduate School of Science, Osaka University, Toyonaka 560-0043, Japan
| | - H. Isobe
- Graduate School of Natural Science and Technology, Okayama University, Okayama 700-8530, Japan
| | - M. Shoji
- Center of Computational Sciences, Tsukuba University, Tsukuba, Ibaraki 305-8577, Japan
| | - S. Yamanaka
- Graduate School of Science, Osaka University, Toyonaka 560-0043, Japan
| | - M. Okumura
- Graduate School of Science, Osaka University, Toyonaka 560-0043, Japan
| | - T. Nakajima
- RIKEN Center for Computational Science, Kobe, Hyogo 650-0047, Japan
| | - K. Yamaguchi
- Institute for Scientific and Industrial Research, Osaka University, Osaka 567-0047, Japan
- RIKEN Center for Computational Science, Kobe, Hyogo 650-0047, Japan
- Insitute for Nanoscience Design, Osaka University, Toyonaka 560-0043, Japan
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Shirasu H, Yokota T, Fushiki K, Inoue H, Shibata M, Furuta M, Kawakami T, Kawai S, Hamauchi S, Todaka A, Tsushima T, Machida N, Yamazaki K, Fukutomi A, Onozawa Y, Yasui H. Risk factors for aspiration pneumonia during concurrent chemoradiotherapy or bio-radiotherapy for head and neck cancer. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy287.067] [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] Open
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26
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Kawakami T, Yamazaki K, Oki E, Shimokawa M, Takahashi N, Yokota M, Tokunaga S, Esaki T, Gamoh M, Maeda A, Tsuji Y, Sakai A, Hatanaka K, Shimada Y, Shiozawa M, Komatsu Y, Okuda H, Ohue M, Maehara Y. Treatment pattern and outcomes of trifluridine/tipiracil therapy for metastatic colorectal cancer in the real-world data from the JFMC50 study. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy281.013] [Citation(s) in RCA: 1] [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: 11/13/2022] Open
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Tateishi R, Kimura S, Kawakami T, Kanehama N, Tachibana S, Arai H, Hayasaka K, Hara S, Hiroki J, Yoshioka K, Kuroda S, Iwatsuka R, Mizukami A, Hayashi T, Matsumura A. P5502Comparison of accuracy of fractional flow reserve using optical sensor wire to conventional pressure wire. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy566.p5502] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- R Tateishi
- Kameda Medical Center, Cardiology, Chiba, Japan
| | - S Kimura
- Kameda Medical Center, Cardiology, Chiba, Japan
| | - T Kawakami
- Kameda Medical Center, Cardiology, Chiba, Japan
| | - N Kanehama
- Kameda Medical Center, Cardiology, Chiba, Japan
| | - S Tachibana
- Kameda Medical Center, Cardiology, Chiba, Japan
| | - H Arai
- Kameda Medical Center, Cardiology, Chiba, Japan
| | - K Hayasaka
- Kameda Medical Center, Cardiology, Chiba, Japan
| | - S Hara
- Kameda Medical Center, Cardiology, Chiba, Japan
| | - J Hiroki
- Kameda Medical Center, Cardiology, Chiba, Japan
| | - K Yoshioka
- Kameda Medical Center, Cardiology, Chiba, Japan
| | - S Kuroda
- Kameda Medical Center, Cardiology, Chiba, Japan
| | - R Iwatsuka
- Kameda Medical Center, Cardiology, Chiba, Japan
| | - A Mizukami
- Kameda Medical Center, Cardiology, Chiba, Japan
| | - T Hayashi
- Kameda Medical Center, Cardiology, Chiba, Japan
| | - A Matsumura
- Kameda Medical Center, Cardiology, Chiba, Japan
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Kimura S, Kawakami T, Kanehama N, Tateishi R, Tachibana S, Arai H, Hara S, Hayasaka K, Hiroki J, Yoshioka K, Kuroda S, Iwatsuka R, Mizukami A, Hayashi T, Matsumura A. P2629Reliability of optical coherence tomography in the prediction of occurrence of side-branch complications after percutaneous coronary intervention. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy565.p2629] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- S Kimura
- Cardiology, Kameda Medical Center, Kamogawa, Japan
| | - T Kawakami
- Cardiology, Kameda Medical Center, Kamogawa, Japan
| | - N Kanehama
- Cardiology, Kameda Medical Center, Kamogawa, Japan
| | - R Tateishi
- Cardiology, Kameda Medical Center, Kamogawa, Japan
| | - S Tachibana
- Cardiology, Kameda Medical Center, Kamogawa, Japan
| | - H Arai
- Cardiology, Kameda Medical Center, Kamogawa, Japan
| | - S Hara
- Cardiology, Kameda Medical Center, Kamogawa, Japan
| | - K Hayasaka
- Cardiology, Kameda Medical Center, Kamogawa, Japan
| | - J Hiroki
- Cardiology, Kameda Medical Center, Kamogawa, Japan
| | - K Yoshioka
- Cardiology, Kameda Medical Center, Kamogawa, Japan
| | - S Kuroda
- Cardiology, Kameda Medical Center, Kamogawa, Japan
| | - R Iwatsuka
- Cardiology, Kameda Medical Center, Kamogawa, Japan
| | - A Mizukami
- Cardiology, Kameda Medical Center, Kamogawa, Japan
| | - T Hayashi
- Cardiology, Kameda Medical Center, Kamogawa, Japan
| | - A Matsumura
- Cardiology, Kameda Medical Center, Kamogawa, Japan
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Yoshioka K, Kimura S, Kawakami T, Kanehama N, Tateishi R, Tachibana S, Arai H, Hayasaka K, Hara S, Hiroki J, Kuroda S, Iwatsuka R, Mizukami A, Hayashi T, Matsumura A. P5606Clinical implication of the differences of aspirated materials by thrombectomy in STEMI patients. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy566.p5606] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- K Yoshioka
- Kameda Medical Center, Department of Cardiology, Kamogawa, Japan
| | - S Kimura
- Kameda Medical Center, Department of Cardiology, Kamogawa, Japan
| | - T Kawakami
- Kameda Medical Center, Department of Cardiology, Kamogawa, Japan
| | - N Kanehama
- Kameda Medical Center, Department of Cardiology, Kamogawa, Japan
| | - R Tateishi
- Kameda Medical Center, Department of Cardiology, Kamogawa, Japan
| | - S Tachibana
- Kameda Medical Center, Department of Cardiology, Kamogawa, Japan
| | - H Arai
- Kameda Medical Center, Department of Cardiology, Kamogawa, Japan
| | - K Hayasaka
- Kameda Medical Center, Department of Cardiology, Kamogawa, Japan
| | - S Hara
- Kameda Medical Center, Department of Cardiology, Kamogawa, Japan
| | - J Hiroki
- Kameda Medical Center, Department of Cardiology, Kamogawa, Japan
| | - S Kuroda
- Kameda Medical Center, Department of Cardiology, Kamogawa, Japan
| | - R Iwatsuka
- Kameda Medical Center, Department of Cardiology, Kamogawa, Japan
| | - A Mizukami
- Kameda Medical Center, Department of Cardiology, Kamogawa, Japan
| | - T Hayashi
- Kameda Medical Center, Department of Cardiology, Kamogawa, Japan
| | - A Matsumura
- Kameda Medical Center, Department of Cardiology, Kamogawa, Japan
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Kawakami T, Miyagawa K, Isobe H, Shoji M, Yamanaka S, Katouda M, Nakajima T, Nakatani K, Okumura M, Yamaguchi K. Relative stability between the manganese hydroxide- and oxo-models for water oxidation by CCSD, DMRG CASCI, CASSCF, CASPT2 and CASDFT methods; Importance of static and dynamical electron correlation effects for OEC of PSII. Chem Phys Lett 2018. [DOI: 10.1016/j.cplett.2018.05.046] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
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Kawakami T, Koike A, Amano F. Sodium bicarbonate regulates nitric oxide production in mouse macrophage cell lines stimulated with lipopolysaccharide and interferon γ. Nitric Oxide 2018; 79:45-50. [PMID: 30063984 DOI: 10.1016/j.niox.2018.07.008] [Citation(s) in RCA: 8] [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: 02/23/2018] [Revised: 07/27/2018] [Accepted: 07/27/2018] [Indexed: 01/22/2023]
Abstract
Macrophages are known to play pivotal roles in host-defense through inflammation via both innate and acquired immune systems, and so on. In an earlier paper, we showed the influence of the type of culture medium, Ham's F-12 or DMEM, on activated macrophage phenotypes induced by LPS and IFNγ. The production of nitric oxide (NO), pro-inflammatory cytokines such as TNFα and IL-1β, as well as the induction of superoxide-generating activity of J774.1/JA-4 cells was different depending on the type of culture medium. In this present study, we showed that sodium bicarbonate concentrations in these culture media, 14 mM in Ham's F-12 and 44 mM in DMEM, were crucial to explaining the differences in the induction of activated macrophage phenotypes, especially in that of iNOS. A concentration-dependent change in pH did not result in any remarkable difference in iNOS expression or NO production. Moreover, high sodium bicarbonate in culture medium increased not only NO production but also TNFα production in the activated macrophages. These results suggest that sodium bicarbonate would be a regulatory factor of NO and TNFα production in macrophages and that its concentration has a crucial role in macrophage activation.
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Affiliation(s)
- Tomoya Kawakami
- Laboratory of Biodefense & Regulation, Osaka University of Pharmaceutical Sciences, 4-20-1 Nasahara, Takatsuki, Osaka, 569-1094, Japan
| | - Atsushi Koike
- Laboratory of Biodefense & Regulation, Osaka University of Pharmaceutical Sciences, 4-20-1 Nasahara, Takatsuki, Osaka, 569-1094, Japan
| | - Fumio Amano
- Laboratory of Biodefense & Regulation, Osaka University of Pharmaceutical Sciences, 4-20-1 Nasahara, Takatsuki, Osaka, 569-1094, Japan.
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Fujita R, Kawakami T, Ichikawa C, Yamamoto K, Takao H, Murayama Y, Motosuke M. Comparison of hemodynamic parameters that can predict an aneurysmal rupture: 20 patient-specific models experiment. Annu Int Conf IEEE Eng Med Biol Soc 2018; 2018:1335-1338. [PMID: 30440638 DOI: 10.1109/embc.2018.8512559] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Hemodynamic analysis of cerebral aneurysms is widely performed to understand the mechanism of aneurysmal rupture. Computational fluid dynamics (CFD) studies have suggested that several hemodynamic parameters are associated with such ruptures. However, a number of factors remain to be addressed to correlate these parameters with aneurysmal ruptures, especially under analytical conditions. Specifically, CFD analysis is often performed with rigid wall models due to computational cost limitations. Here, to evaluate the effects of the deformation of the aneurysmal wall, experimental flow measurement with elastic models under pulsating conditions was conducted using three-dimensional particle image velocimetry (3D PIV). By analyzing 20 patient-specific, elastic, silicone aneurysm models, the hemodynamic parameters of ruptured and unruptured aneurysms were statistically compared to identify the variables that can effectively predict an aneurysmal rupture. Our analyses yielded three parameters (average wall shear stress ratio, in-phase deviation ratio, and pressure difference) which could effectively predict an aneurysmal rupture. These results suggested that measurement of wall shear stress (WSS) at both the aneurysm dome and parent artery is important and that pressure difference can also be a potential indicator of aneurysmal rupture.
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Kawakami T, Itoh M, Jimbow K. 1269 Approach for the derivation of melanocytes from induced pluripotent stem (iPS) cells. J Invest Dermatol 2018. [DOI: 10.1016/j.jid.2018.03.1285] [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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Nosaki K, Takeuchi S, Takahara S, Kawakami T, Yoh K, Kono Y, Horiike A, Seto T, Goto K, Yoshimura K, Imai Y, Murayama T, Yano S. Safety of alectinib in non-small cell lung cancer patients with RET fusion gene (ALL-RET): Results from the dose-finding portion of a phase 1/2 study. Ann Oncol 2017. [DOI: 10.1093/annonc/mdx671.008] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Miyagawa K, Komi K, Ohnari J, Maruyama S, Yamanaka S, Saito T, Kawakami T, Yamaguchi K, Okumura M. Density functional study of the magneto-structural correlations of manganese complexes, [Mn2O2H (salpn)2]+(2−) (n= 0–2) from the viewpoint of the protonation modes of the bridging oxygen anions. Polyhedron 2017. [DOI: 10.1016/j.poly.2017.03.044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Naoi T, Morita M, Kawakami T, Fujimoto S. Various ophthalmological findings and possible underlying mechanisms in patients with brainstem and thalamic infarction. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.1779] [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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Kawakami T, Ito K, Matsuda Y, Noda M, Sakurada A, Hoshikawa Y, Okada Y, Ogasawara K. Cytotoxicity of Natural Killer Cells Activated Through NKG2D Contributes to the Development of Bronchiolitis Obliterans in a Murine Heterotopic Tracheal Transplant Model. Am J Transplant 2017; 17:2338-2349. [PMID: 28251796 DOI: 10.1111/ajt.14257] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2016] [Revised: 01/26/2017] [Accepted: 02/17/2017] [Indexed: 01/25/2023]
Abstract
Bronchiolitis obliterans after lung transplantation is a major cause of postoperative mortality in which T cell-mediated immunity is known to play an important role. However, the exact contribution of natural killer (NK) cells, which have functions similar to CD8+ T cells, has not been defined. Here, we assessed the role of NK cells in murine bronchiolitis obliterans through heterotopic tracheal transplantations and found a greater percentage of NK cells in allografts than in isografts. Depletion of NK cells using an anti-NK1.1 antibody attenuated bronchiolitis obliterans in transplant recipients compared with controls. In terms of NK cell effector functions, an improvement in bronchiolitis obliterans was observed in perforin-KO recipient mice compared to wild type (WT). Furthermore, we found upregulation of NKG2D-ligand in allografts and demonstrated the significance of this using grafts expressing Rae-1, a murine NKG2D-ligand, which induced severe bronchiolitis obliterans in WT and Rag-1 KO recipients. This effect was ameliorated by injection of anti-NKG2D blocking antibody. Together, these results suggest that cytotoxicity resulting from activation of NK cells through NKG2D leads to the development of murine bronchiolitis obliterans.
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Affiliation(s)
- T Kawakami
- Department of Immunobiology, Institute of Development, Aging and Cancer, Tohoku University, Aoba-ku, Sendai, Miyagi, Japan.,Department of Thoracic Surgery, Graduate School of Medicine, Tohoku University, Aoba-ku, Sendai, Miyagi, Japan
| | - K Ito
- Department of Immunobiology, Institute of Development, Aging and Cancer, Tohoku University, Aoba-ku, Sendai, Miyagi, Japan
| | - Y Matsuda
- Department of Thoracic Surgery, Graduate School of Medicine, Tohoku University, Aoba-ku, Sendai, Miyagi, Japan
| | - M Noda
- Department of Thoracic Surgery, Graduate School of Medicine, Tohoku University, Aoba-ku, Sendai, Miyagi, Japan
| | - A Sakurada
- Department of Thoracic Surgery, Graduate School of Medicine, Tohoku University, Aoba-ku, Sendai, Miyagi, Japan
| | - Y Hoshikawa
- Department of Thoracic Surgery, Graduate School of Medicine, Fujita Health University, Toyoake, Aichi, Japan
| | - Y Okada
- Department of Thoracic Surgery, Graduate School of Medicine, Tohoku University, Aoba-ku, Sendai, Miyagi, Japan
| | - K Ogasawara
- Department of Immunobiology, Institute of Development, Aging and Cancer, Tohoku University, Aoba-ku, Sendai, Miyagi, Japan
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Yamamoto N, Muro K, Ishii H, Kato T, Tsushima T, Takenoyama M, Oizumi S, Kawakami T, Doi T. Anti-CC-chemokine receptor 4 (CCR4) antibody mogamulizumab (Moga) and nivolumab (Nivo) combination phase I study in patients with advanced or metastatic solid tumors. Ann Oncol 2017. [DOI: 10.1093/annonc/mdx440.010] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Moriyama H, Murata M, Kawakami T, Kataoka M, Minakata Y, Endo J, Tsuruta H, Itabashi Y, Maekawa Y, Fukuda K. P4330Right ventricular diastolic strain rate reflects right ventricular diastolic function in patients with chronic thromboembolic pulmonary hypertension. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx504.p4330] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Hashimoto T, Ohzono A, Teye K, Numata S, Hiroyasu S, Tsuruta D, Hachiya T, Kuroda K, Hashiguchi M, Kawakami T, Ishii N. Detection of IgE autoantibodies to BP180 and BP230 and their relationship to clinical features in bullous pemphigoid. Br J Dermatol 2017; 177:141-151. [PMID: 27716903 DOI: 10.1111/bjd.15114] [Citation(s) in RCA: 64] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/03/2016] [Indexed: 12/28/2022]
Abstract
BACKGROUND IgE autoantibodies are considered to be involved in the pathogenesis of bullous pemphigoid (BP), particularly inflammatory and erythematous phenotypes. OBJECTIVES To develop reliable enzyme-linked immunosorbent assays (ELISAs) for the detection of IgE autoantibodies to both BP180 and BP230 in BP sera, and to compare the ELISA results with clinical features. METHODS We used commercially available IgG ELISAs to develop IgE ELISAs for both BP180 and BP230. To determine the influence of excess amounts of IgG autoantibodies, all normal and BP sera were tested before and after IgG adsorption. The results of the IgE ELISAs were statistically compared with various ELISAs and various clinical parameters, including our own severity scores and BP phenotypes. RESULTS IgG adsorption generally showed no changes in sensitivity and specificity for IgE ELISAs, although slight cross-reactivity of anti-IgE secondary antibody to IgG and interference of excess amounts of IgG autoantibodies to IgE reactivity were suggested. IgE autoantibodies to BP180 were found in 21 of 36 BP sera and IgE autoantibodies to BP230 were found in 18 of 36 BP sera. The results of IgG and IgE ELISAs for both BP180 and BP230 were well correlated. IgG and IgE anti-BP180 antibodies correlated with disease activity but IgG and IgE anti-BP230 autoantibodies did not. IgE anti-BP230 autoantibodies correlated with nodular phenotype but not erythematous phenotype. CONCLUSIONS The results of this study indicated that IgE autoantibodies to both BP180 and BP230 are frequently detected in BP sera. IgE anti-BP180 autoantibodies seemed to be pathogenic, while an association between IgE autoantibodies and inflammatory BP phenotype was not indicated.
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Affiliation(s)
- T Hashimoto
- Department of Dermatology, Kurume University School of Medicine and Kurume University Institute of Cutaneous Cell Biology, Kurume, Fukuoka, Japan
| | - A Ohzono
- Department of Dermatology, Kurume University School of Medicine and Kurume University Institute of Cutaneous Cell Biology, Kurume, Fukuoka, Japan
| | - K Teye
- Department of Dermatology, Kurume University School of Medicine and Kurume University Institute of Cutaneous Cell Biology, Kurume, Fukuoka, Japan
| | - S Numata
- Department of Dermatology, Kurume University School of Medicine and Kurume University Institute of Cutaneous Cell Biology, Kurume, Fukuoka, Japan
| | - S Hiroyasu
- Department of Dermatology, Osaka City University Graduate School of Medicine, Osaka, Japan
| | - D Tsuruta
- Department of Dermatology, Osaka City University Graduate School of Medicine, Osaka, Japan
| | - T Hachiya
- Research and Development Division, Medical and Biological Laboratories Co. Ltd., Nagoya, Aichi, Japan
| | - K Kuroda
- IVD Development Department, Medical and Biological Laboratories Co. Ltd., Nagoya, Aichi, Japan
| | - M Hashiguchi
- Sales & Marketing Division, Medical and Biological Laboratories Co. Ltd., Nagoya, Aichi, Japan
| | - T Kawakami
- Department of Dermatology, St. Marianna University School of Medicine, Kawasaki, Kanagawa, Japan
| | - N Ishii
- Department of Dermatology, Kurume University School of Medicine and Kurume University Institute of Cutaneous Cell Biology, Kurume, Fukuoka, Japan
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Kawakami T, Makoto K. Does an earthworm species acclimatize and/or adapt to soil calcium conditions? The consequences of soil nitrogen mineralization in forest soil. Ecol Res 2017. [DOI: 10.1007/s11284-017-1473-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Kawakami T, Yamada Y, Tanaka S, Tsukamoto K. Prolongation of somitogenesis in two anguilliform species, the Japanese eel Anguilla japonica and pike eel Muraenesox cinereus, with refined descriptions of their early development. J Fish Biol 2017; 90:1533-1547. [PMID: 28097653 DOI: 10.1111/jfb.13249] [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] [Subscribe] [Scholar Register] [Received: 05/20/2015] [Revised: 11/13/2015] [Accepted: 11/22/2016] [Indexed: 06/06/2023]
Abstract
The embryonic development of the Japanese eel Anguilla japonica and pike eel Muraenesox cinereus was morphologically investigated with laboratory-reared specimens to clarify the characteristics of somitogenesis. In A. japonica, somites were first observed at 18 h post fertilization (hpf) when epiboly reached 90%. Somitogenesis progressed at a rate of 1·6 h-1 at mean ± s.d. 22·6 ± 0·7° C and completed at 107 hpf (3 days post hatching; dph) when total number of somites (ST) reached 114, which corresponds to the species' number of vertebrae (112-119). In M. cinereus, somites were first observed at 14 hpf when epiboly completed. Somitogenesis progressed at a rate of 1·9 h-1 at mean ± s.d. 24·4 ± 0·2° C and completed at 90 hpf (2 dph) with 149 ± 4 ST, which corresponds to the species' number of vertebrae (142-158). Both species hatched before somitogenesis was completed, at 37 hpf with 47 ST and 42 hpf with 82 ± 4 ST, respectively. The formation of other organs such as the heart, mouth and pectoral fin bud occurred during somitogenesis. Comparison with the development of zebrafish Danio rerio indicates a prolongation of somitogenesis in A. japonica and M. cinereus. Their somitogenesis rates, however, correspond well with that of D. rerio estimated at the same temperature and their developmental stages at hatching are almost equivalent to other fishes having similar yolk sizes. Therefore, the prolongation of somitogenesis in A. japonica and M. cinereus may be accounted for solely by the increased numbers of somites to be formed, not by a slow somitogenesis rate or an acceleration in organogenesis.
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Affiliation(s)
- T Kawakami
- Atmosphere and Ocean Research Institute, University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba, 277-8564, Japan
- Graduate School of Agricultural and Life Sciences, University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo, 113-8657, Japan
| | - Y Yamada
- IRAGO Institute, 377 Ehima-Shinden, Tahara, Aichi, 441-3605, Japan
| | - S Tanaka
- IRAGO Institute, 377 Ehima-Shinden, Tahara, Aichi, 441-3605, Japan
| | - K Tsukamoto
- Atmosphere and Ocean Research Institute, University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba, 277-8564, Japan
- College of Bioresource Sciences, Nihon University, 1866 Kameino, Fujisawa, Kanagawa, 252-0880, Japan
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Kawakami T, Koike A, Amano F. Induction of different activated phenotypes of mouse peritoneal macrophages grown in different tissue culture media. Cytotechnology 2017; 69:631-642. [PMID: 28251403 DOI: 10.1007/s10616-017-0073-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [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: 10/28/2016] [Accepted: 02/01/2017] [Indexed: 12/23/2022] Open
Abstract
The role of activated macrophages in the host defense against pathogens or tumor cells has been investigated extensively. Many researchers have been using various culture media in in vitro experiments using macrophages. We previously reported that J774.1/JA-4 macrophage-like cells showed great differences in their activated macrophage phenotypes, such as production of reactive oxygen, nitric oxide (NO) or cytokines depending on the culture medium used, either F-12 (Ham's F-12 nutrient mixture) or Dulbecco modified Eagle's medium (DMEM). To examine whether a difference in the culture medium would influence the functions of primary macrophages, we used BALB/c mouse peritoneal macrophages in this study. Among the activated macrophage phenotypes, the expression of inducible NO synthase in LPS- and/or IFN-γ-treated peritoneal macrophages showed the most remarkable differences between F-12 and DMEM; i.e., NO production by LPS- and/or IFN-γ-treated cells was far lower in DMEM than in F-12. Similar results were obtained with C57BL mouse peritoneal macrophages. Besides, dilution of F-12 medium with saline resulted in a slight decrease in NO production, whereas that of DMEM with saline resulted in a significant increase, suggesting the possibility that DMEM contained some inhibitory factor(s) for NO production. However, such a difference in NO production was not observed when macrophage-like cell lines were examined. These results suggest that phenotypes of primary macrophages could be changed significantly with respect to host inflammatory responses by the surrounding environment including nutritional factors and that these altered macrophage phenotypes might influence the biological host defense.
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Affiliation(s)
- Tomoya Kawakami
- Laboratory of Biodefense and Regulation, Osaka University of Pharmaceutical Sciences, 4-20-1 Nasahara, Takatsuki, Osaka, 569-1094, Japan
| | - Atsushi Koike
- Laboratory of Biodefense and Regulation, Osaka University of Pharmaceutical Sciences, 4-20-1 Nasahara, Takatsuki, Osaka, 569-1094, Japan
| | - Fumio Amano
- Laboratory of Biodefense and Regulation, Osaka University of Pharmaceutical Sciences, 4-20-1 Nasahara, Takatsuki, Osaka, 569-1094, Japan.
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Terasaki F, Kawakami T, Yoshikawa A, Takano N. Mechanism of crack propagation due to hydrogen embrittlement in iron single crystals stressed along [001] axis. ACTA ACUST UNITED AC 2017. [DOI: 10.1051/metal/199895121519] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
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Kawakami T, Tsushima T, Hayashi K, Shirasu H, Kawahira M, Kawai S, Kito Y, Yoshida Y, Hamauchi S, Todaka A, Machida N, Yamazaki K, Yokota T, Fukutomi A, Onozawa Y, Yasui H. Risk factors for esophageal fistula in esophageal squamous cell carcinoma invading adjacent organs (T4b) treated with definitive chemoradiotherapy. Ann Oncol 2016. [DOI: 10.1093/annonc/mdw371.60] [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: 11/14/2022] Open
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Kawakami T, Takao H, Ichikawa C, Kamiya K, Murayama Y, Motosuke M. The impact of deformation of an aneurysm model under pulsatile flow on hemodynamic analysis. Annu Int Conf IEEE Eng Med Biol Soc 2016; 2016:2668-2671. [PMID: 28268870 DOI: 10.1109/embc.2016.7591279] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Hemodynamic analysis of cerebral aneurysms has been widely carried out to clarify the mechanisms of their growth and rupture. In several cases, patient-specific aneurysm models made of transparent polymers have been used. Even though periodic changes in aneurysms due to the pulsation of blood flow could be important, the deformation of the model geometry and its effect on hemodynamic evaluation has not been fully investigated. In addition, the fabrication accuracy of aneurysm models has not been evaluated even though it may affect the hemodynamic parameters to be analyzed. In this study, the fabrication accuracy of a silicone aneurysm model was investigated. Additionally, the deformation of the model under pulsatile flow as well as its correlation with flow behavior was evaluated. Consequently, a fabrication method for an aneurysm model with high accuracy was established and the importance of the wall thickness of the model was also specified.
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Kawakami T, Kawamura K, Fujimori K, Koike A, Amano F. Influence of the culture medium on the production of nitric oxide and expression of inducible nitric oxide synthase by activated macrophages in vitro. Biochem Biophys Rep 2016; 5:328-334. [PMID: 28955839 PMCID: PMC5600421 DOI: 10.1016/j.bbrep.2016.01.006] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2015] [Revised: 01/08/2016] [Accepted: 01/11/2016] [Indexed: 11/25/2022] Open
Abstract
Macrophages play an important role in immune and inflammatory responses, and have been extensively studied in vitro using culture media such as RPMI1640 medium, Dulbecco's modified Eagle medium (DMEM), and Ham's F-12 medium (F-12). We found that the activation phenotypes of a murine macrophage-like cell line, J774.1/JA-4, were obviously different in two distinct culture media (F-12 and DMEM), both of which were supplemented with 10% of the same fetal bovine serum (FBS). Among these phenotypes, nitric oxide (NO) production as well as inducible NO synthase (iNOS) expression, induced by lipopolysaccharide (LPS) and interferon-γ (IFN-γ), were remarkably different. iNOS expression was higher in the macrophages cultured in DMEM than in F-12 for 20 h, while no significant differences were shown in NO production between in F-12 and DMEM. It might be the reason why DMEM have reduced NO production by the induced iNOS. Besides, [Formula: see text]-generating activity, and production of tumor necrosis factor-α (TNF-α) and interleukin-1β (IL-1β) in the activated macrophages were also different between the cultures in F-12 and DMEM. These results suggest that F-12 and DMEM contain certain components responsible for modification of macrophage activation processes and/or macrophage functions. Our present results provide evidence that the choice of culture medium is important in the study and analysis of macrophage activation.
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Affiliation(s)
- Tomoya Kawakami
- Laboratory of Biodefense & Regulation, Osaka University of Pharmaceutical Sciences, 4-20-1 Nasahara, Takatsuki, Osaka 569-1094, Japan
| | - Kana Kawamura
- Laboratory of Biodefense & Regulation, Osaka University of Pharmaceutical Sciences, 4-20-1 Nasahara, Takatsuki, Osaka 569-1094, Japan
| | - Ko Fujimori
- Laboratory of Biodefense & Regulation, Osaka University of Pharmaceutical Sciences, 4-20-1 Nasahara, Takatsuki, Osaka 569-1094, Japan
| | - Atsushi Koike
- Laboratory of Biodefense & Regulation, Osaka University of Pharmaceutical Sciences, 4-20-1 Nasahara, Takatsuki, Osaka 569-1094, Japan
| | - Fumio Amano
- Laboratory of Biodefense & Regulation, Osaka University of Pharmaceutical Sciences, 4-20-1 Nasahara, Takatsuki, Osaka 569-1094, Japan
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Ohzono A, Sogame R, Li X, Teye K, Tsuchisaka A, Numata S, Koga H, Kawakami T, Tsuruta D, Ishii N, Hashimoto T. Clinical and immunological findings in 104 cases of paraneoplastic pemphigus. Br J Dermatol 2015; 173:1447-52. [DOI: 10.1111/bjd.14162] [Citation(s) in RCA: 111] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/01/2015] [Indexed: 01/31/2023]
Affiliation(s)
- A. Ohzono
- Department of Dermatology; Kurume University School of Medicine, and Kurume University Institute of Cutaneous Cell Biology; 67 Asahimachi Kurume Fukuoka 830-0011 Japan
| | - R. Sogame
- Department of Dermatology; Kurume University School of Medicine, and Kurume University Institute of Cutaneous Cell Biology; 67 Asahimachi Kurume Fukuoka 830-0011 Japan
| | - X. Li
- Department of Dermatology; Kurume University School of Medicine, and Kurume University Institute of Cutaneous Cell Biology; 67 Asahimachi Kurume Fukuoka 830-0011 Japan
| | - K. Teye
- Department of Dermatology; Kurume University School of Medicine, and Kurume University Institute of Cutaneous Cell Biology; 67 Asahimachi Kurume Fukuoka 830-0011 Japan
| | - A. Tsuchisaka
- Department of Dermatology; Kurume University School of Medicine, and Kurume University Institute of Cutaneous Cell Biology; 67 Asahimachi Kurume Fukuoka 830-0011 Japan
| | - S. Numata
- Department of Dermatology; Kurume University School of Medicine, and Kurume University Institute of Cutaneous Cell Biology; 67 Asahimachi Kurume Fukuoka 830-0011 Japan
| | - H. Koga
- Department of Dermatology; Kurume University School of Medicine, and Kurume University Institute of Cutaneous Cell Biology; 67 Asahimachi Kurume Fukuoka 830-0011 Japan
| | - T. Kawakami
- Department of Dermatology; St Marianna University School of Medicine; Kanagawa Japan
| | - D. Tsuruta
- Department of Dermatology; Kurume University School of Medicine, and Kurume University Institute of Cutaneous Cell Biology; 67 Asahimachi Kurume Fukuoka 830-0011 Japan
| | - N. Ishii
- Department of Dermatology; Kurume University School of Medicine, and Kurume University Institute of Cutaneous Cell Biology; 67 Asahimachi Kurume Fukuoka 830-0011 Japan
| | - T. Hashimoto
- Department of Dermatology; Kurume University School of Medicine, and Kurume University Institute of Cutaneous Cell Biology; 67 Asahimachi Kurume Fukuoka 830-0011 Japan
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Furukawa M, Kina S, Shiroma M, Shiroma Y, Masuda N, Motomura D, Hiraoka H, Fujioka S, Kawakami T, Yasuda Y, Arakawa K, Fukahori K, Jyunicho M, Ishikawa S, Ohomoto T, Shingaki R, Akata N, Zhuo W, Tokonami S. Terrestrial gamma radiation dose rate in Ryukyu Islands, subtropical region of Japan. Radiat Prot Dosimetry 2015; 167:223-227. [PMID: 26065703 DOI: 10.1093/rpd/ncv249] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
In order to explain the distribution of natural radiation level in the Asia, in situ measurements of dose rate in air due to terrestrial gamma radiation have been conducted in a total of 21 islands that belong to Ryukyu Islands (Ryukyu Archipelago), subtropical rejoin of southwest Japan. Car-borne surveys have also been carried out in Okinawa-jima, the biggest island of the archipelago. Based on the results for these measurements, arithmetic mean, the maximum and the minimum of the dose rates at 1 m in height from the unpaved soil ground in the archipelago were estimated to be 47, 165 and 8 nGy h(-1), respectively. A comparative study of car-borne data obtained prior to and subsequent to the 2011 Fukushima nuclear accident, as for Okinawa-jima, indicated that the nuclear accident has no impact on the environmental radiation at the present time.
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Affiliation(s)
- M Furukawa
- Faculty of Science, University of the Ryukyus, 1 Senbaru, Nishihara-cho, Okinawa 903-0213, Japan
| | - S Kina
- Graduate School of Engineering and Sciences, University of the Ryukyus, 1 Senbaru, Nishihara-cho, Okinawa 903-0213, Japan
| | - M Shiroma
- Faculty of Science, University of the Ryukyus, 1 Senbaru, Nishihara-cho, Okinawa 903-0213, Japan
| | - Y Shiroma
- Graduate School of Engineering and Sciences, University of the Ryukyus, 1 Senbaru, Nishihara-cho, Okinawa 903-0213, Japan
| | - N Masuda
- Graduate School of Engineering and Sciences, University of the Ryukyus, 1 Senbaru, Nishihara-cho, Okinawa 903-0213, Japan
| | - D Motomura
- Faculty of Science, University of the Ryukyus, 1 Senbaru, Nishihara-cho, Okinawa 903-0213, Japan
| | - H Hiraoka
- Graduate School of Engineering and Sciences, University of the Ryukyus, 1 Senbaru, Nishihara-cho, Okinawa 903-0213, Japan
| | - S Fujioka
- Faculty of Science, University of the Ryukyus, 1 Senbaru, Nishihara-cho, Okinawa 903-0213, Japan
| | - T Kawakami
- Faculty of Science, University of the Ryukyus, 1 Senbaru, Nishihara-cho, Okinawa 903-0213, Japan
| | - Y Yasuda
- Faculty of Science, University of the Ryukyus, 1 Senbaru, Nishihara-cho, Okinawa 903-0213, Japan
| | - K Arakawa
- Faculty of Science, University of the Ryukyus, 1 Senbaru, Nishihara-cho, Okinawa 903-0213, Japan
| | - K Fukahori
- Faculty of Science, University of the Ryukyus, 1 Senbaru, Nishihara-cho, Okinawa 903-0213, Japan
| | - M Jyunicho
- Faculty of Science, University of the Ryukyus, 1 Senbaru, Nishihara-cho, Okinawa 903-0213, Japan
| | - S Ishikawa
- Faculty of Science, University of the Ryukyus, 1 Senbaru, Nishihara-cho, Okinawa 903-0213, Japan
| | - T Ohomoto
- Faculty of Science, University of the Ryukyus, 1 Senbaru, Nishihara-cho, Okinawa 903-0213, Japan
| | - R Shingaki
- Graduate School of Engineering and Sciences, University of the Ryukyus, 1 Senbaru, Nishihara-cho, Okinawa 903-0213, Japan
| | - N Akata
- National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu 509-5292, Japan
| | - W Zhuo
- Institute of Radiation Medicine, Fudan University, No. 2094, Xietu Road, Shanghai 200032, China
| | - S Tokonami
- Institute of Radiation Emergency Medicine, Hirosaki University, 66-1 Hon-cho, Hirosaki-shi, Aomori 036-8564, Japan
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Isama K, Kawakami T, Ikarashi Y. Cytotoxicity of phosphite and phosphate triesters. Toxicol Lett 2015. [DOI: 10.1016/j.toxlet.2015.08.1044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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