1
|
Yagi A, Nakagawa S, Ueda Y, Oka E, Ikeda S, Kakuda M, Kobayashi E, Ito Y, Katayama K, Hirai K, Nakayama T, Kimura T. Effectiveness of catch-up and routine program of the 9-valent vaccine on cervical cancer risk reduction in Japan. Cancer Sci 2024; 115:916-925. [PMID: 38158850 PMCID: PMC10920980 DOI: 10.1111/cas.16055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2023] [Revised: 11/29/2023] [Accepted: 12/09/2023] [Indexed: 01/03/2024] Open
Abstract
In 2013, the national human papillomavirus (HPV) immunization program began. However, in June 2013, Japan's Ministry of Health, Labor and Welfare (MHLW) announced a "temporary" suspension of its recommendation for the human papillomavirus vaccine. Finally, in November 2021, the MHLW ended its suspension of the recommendation of the HPV vaccine. To address the 9-year gap in HPV vaccinations the suspension had caused, the MHLW conducted a program of catch-up vaccinations from April 2022 to March 2025. Finally, in April 2023, the 9-valent HPV vaccine was approved for both the routine and catch-up vaccination programs in Japan. In this study, we investigated the potential effects of the introduction of the 9-valent vaccine on the increased risk of cervical cancer in females born after fiscal year (FY) 2000. We estimated the lifetime relative risk of cervical cancer incidence and death using the improved routine and catch-up vaccination rates after the recent resumption of the governmental recommendation for women and girls to have the HPV vaccination. These relative risks were calculated using a lifetime risk of 1.000 for cervical cancer incidence and death for females born in FY 1993. We predicted that even if a 90% vaccination rate were to be achieved by FY 2024 with the 9-valent vaccine among women born between FY 2000 and FY 2005, the risk would remain higher than for the vaccination generation. Therefore, for women born between FY 2000 and FY 2005, it will be necessary to significantly improve the cervical cancer screening rate to compensate for this increased risk.
Collapse
Affiliation(s)
- Asami Yagi
- Department of Obstetrics and GynecologyOsaka University Graduate School of MedicineOsakaJapan
| | - Satoshi Nakagawa
- Department of Obstetrics and GynecologyOsaka University Graduate School of MedicineOsakaJapan
| | - Yutaka Ueda
- Department of Obstetrics and GynecologyOsaka University Graduate School of MedicineOsakaJapan
| | - Emiko Oka
- Department of Obstetrics and GynecologyOsaka University Graduate School of MedicineOsakaJapan
- Department of Medical Statistics, Research and Development CenterOsaka Medical and Pharmaceutical UniversityTakatsukiOitaJapan
| | - Sayaka Ikeda
- Department of Obstetrics and GynecologyOsaka University Graduate School of MedicineOsakaJapan
| | - Mamoru Kakuda
- Department of Obstetrics and GynecologyOsaka University Graduate School of MedicineOsakaJapan
| | - Eiji Kobayashi
- Department of Obstetrics and GynecologyOita University Graduate School of MedicineUfuOitaJapan
| | - Yuri Ito
- Department of Medical Statistics, Research and Development CenterOsaka Medical and Pharmaceutical UniversityTakatsukiOitaJapan
| | | | - Kei Hirai
- Clinical Psychology, Graduate School of Human SciencesOsaka UniversityOsakaJapan
| | - Tomio Nakayama
- Center for Public Health SciencesNational Cancer CenterTokyoJapan
| | - Tadashi Kimura
- Department of Obstetrics and GynecologyOsaka University Graduate School of MedicineOsakaJapan
| |
Collapse
|
2
|
Sugiyama N, Kinjo M, Jinno S, de Luise C, Morishima T, Higuchi T, Katayama K, Chen H, Nonnenmacher E, Hase R, Suzuki D, Tanaka Y, Setoguchi S. Validation of claims-based algorithms for rheumatoid arthritis in Japan: Results from the VALIDATE-J study. Int J Rheum Dis 2024; 27:e15001. [PMID: 38160436 DOI: 10.1111/1756-185x.15001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2022] [Revised: 11/01/2023] [Accepted: 11/26/2023] [Indexed: 01/03/2024]
Abstract
AIM Validity of Algorithms in Large Databases: Infectious Diseases, Rheumatoid Arthritis, and Tumor Evaluation in Japan (VALIDATE-J) study examined algorithms for identifying rheumatoid arthritis (RA) in Japanese claims data. METHODS VALIDATE-J was a multicenter, cross-sectional retrospective study. Disease-identifying algorithms were used to detect RA diagnosed between January 2012 and December 2016 using claims data from two Japanese hospitals. An RA diagnosis was confirmed using one of four gold standard definitions. Positive predictive values (PPVs) were calculated for prevalent (regardless of baseline RA-free period) and incident (preceded by a 12-month RA-free period) cases. RESULTS Of patients identified using claims-based algorithms, a random sample of 389 prevalent and 134 incident cases of RA were included. Cases identified by an RA diagnosis, no diagnosis of psoriasis, and treatment with any disease-modifying antirheumatic drugs (DMARDs) resulted in the highest PPVs versus other claims-based treatment categories (29.0%-88.3% [prevalent] and 41.0%-78.2% [incident]); cases identified by an RA diagnosis, no diagnosis of psoriasis, and glucocorticoid-only treatment had the lowest PPVs. Across claims-based algorithms, PPVs were highest when a physician diagnosis or decision by adjudicators (confirmed and probable cases) was used as the gold standard and were lowest when American College of Rheumatology/European Alliance of Associations for Rheumatology 2010 criteria were applied. PPVs of claims-based algorithms for RA in patients aged ≥66 years were slightly higher versus a USA Medicare population (maximum PPVs of 95.0% and 88.9%, respectively). CONCLUSION VALIDATE-J demonstrated high PPVs for most claims-based algorithms for diagnosis of prevalent and incident RA using Japanese claims data. These findings will help inform appropriate RA definitions for future claims database research in Japan.
Collapse
Affiliation(s)
- Naonobu Sugiyama
- Inflammation and Immunology, Medical Affairs, Pfizer Japan, Tokyo, Japan
| | - Mitsuyo Kinjo
- Division of Rheumatology, Okinawa Chubu Hospital, Uruma, Okinawa, Japan
| | - Sadao Jinno
- Section of Rheumatology, Kobe University School of Medicine, Kobe, Hyogo, Japan
| | - Cynthia de Luise
- Safety Surveillance Research, Pfizer Inc, New York, New York, USA
| | | | - Takakazu Higuchi
- Blood Transfusion Department, Dokkyo Medical University Saitama Medical Center, Koshigaya, Saitama, Japan
| | - Kayoko Katayama
- Cancer Prevention and Cancer Control Division, Kanagawa Cancer Center Research Institute, Yokohama, Kanagawa, Japan
| | - Haoqian Chen
- Center for Pharmacoepidemiology and Treatment Science, Rutgers Institute for Health, Health Care Policy and Aging Research, New Brunswick, New Jersey, USA
| | - Edward Nonnenmacher
- Center for Pharmacoepidemiology and Treatment Science, Rutgers Institute for Health, Health Care Policy and Aging Research, New Brunswick, New Jersey, USA
| | - Ryota Hase
- Department of Infectious Diseases, Kameda Medical Center, Kamogawa, Chiba, Japan
- Department of Infectious Diseases, Japanese Red Cross Narita Hospital, Narita, Chiba, Japan
| | - Daisuke Suzuki
- Department of Infectious Diseases, Fujita Health University, Toyoake, Aichi, Japan
| | - Yoshiya Tanaka
- First Department of Internal Medicine, University of Occupational and Environmental Health Japan, Kitakyushu, Fukuoka, Japan
| | - Soko Setoguchi
- Department of Infectious Diseases, Japanese Red Cross Narita Hospital, Narita, Chiba, Japan
- Department of Medicine, Rutgers Robert Wood Johnson Medical School and Institute for Health, Rutgers Biomedical and Health Science, New Brunswick, New Jersey, USA
| |
Collapse
|
3
|
Hase R, Suzuki D, de Luise C, Chen H, Nonnenmacher E, Higuchi T, Katayama K, Kinjo M, Jinno S, Morishima T, Sugiyama N, Tanaka Y, Setoguchi S. Validity of claims-based diagnoses for infectious diseases common among immunocompromised patients in Japan. BMC Infect Dis 2023; 23:653. [PMID: 37789253 PMCID: PMC10548573 DOI: 10.1186/s12879-023-08466-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Accepted: 07/16/2023] [Indexed: 10/05/2023] Open
Abstract
BACKGROUND To validate Japanese claims-based disease-identifying algorithms for herpes zoster (HZ), Mycobacterium tuberculosis (MTB), nontuberculous mycobacteria infections (NTM), and Pneumocystis jirovecii pneumonia (PJP). METHODS VALIDATE-J, a multicenter, cross-sectional, retrospective study, reviewed the administrative claims data and medical records from two Japanese hospitals. Claims-based algorithms were developed by experts to identify HZ, MTB, NTM, and PJP cases among patients treated 2012-2016. Diagnosis was confirmed with three gold standard definitions; positive predictive values (PPVs) were calculated for prevalent (regardless of baseline disease-free period) and incident (preceded by a 12-month disease-free period for the target conditions) cases. RESULTS Of patients identified using claims-based algorithms, a random sample of 377 cases was included: HZ (n = 95 [55 incident cases]); MTB (n = 100 [58]); NTM (n = 82 [50]); and PJP (n = 100 [84]). PPVs ranged from 67.4-70.5% (HZ), 67.0-90.0% (MTB), 18.3-63.4% (NTM), and 20.0-45.0% (PJP) for prevalent cases, and 69.1-70.9% (HZ), 58.6-87.9% (MTB), 10.0-56.0% (NTM), and 22.6-51.2% (PJP) for incident cases, across definitions. Adding treatment to the algorithms increased PPVs for HZ, with a small increase observed for prevalent cases of NTM. CONCLUSIONS VALIDATE-J demonstrated moderate to high PPVs for disease-identifying algorithms for HZ and MTB using Japanese claims data.
Collapse
Affiliation(s)
- Ryota Hase
- Department of Infectious Diseases, Kameda Medical Center, 929 Higashi-cho, Kamogawa, 296-8602, Chiba, Japan
- Department of Infectious Diseases, Japanese Red Cross Narita Hospital, 90-1 Iidacho, Narita, 286-8523, Chiba, Japan
| | - Daisuke Suzuki
- Department of Infectious Diseases, Fujita Health University, 1-98 Dengakugakubo, Kutsukake-cho, Toyoake, 470-1192, Aichi, Japan
- Department of Infectious Diseases, Anjo Kosei Hospital, Anjo, Aichi, Japan
| | - Cynthia de Luise
- Safety Surveillance Research, Pfizer Inc, 235 E 42nd Street, New York, NY, 10017, USA
| | - Haoqian Chen
- Center for Pharmacoepidemiology and Treatment Science, Rutgers Institute for Health, Health Care Policy and Aging Research, 112 Paterson Street, New Brunswick, NJ, 08901, USA
| | - Edward Nonnenmacher
- Center for Pharmacoepidemiology and Treatment Science, Rutgers Institute for Health, Health Care Policy and Aging Research, 112 Paterson Street, New Brunswick, NJ, 08901, USA
| | - Takakazu Higuchi
- Blood Transfusion Department, Dokkyo Medical University Saitama Medical Center, 2-1-50 Minamikoshigaya, Koshigaya, 343-8555, Saitama, Japan
| | - Kayoko Katayama
- Cancer Prevention and Cancer Control Division, Kanagawa Cancer Center Research Institute, 1-1-2 Nakao, Asahi-ku, Yokohama, 241-0815, Kanagawa, Japan
- Department of Informatics, Gunma University, Maebashi, Gunma, Japan
| | - Mitsuyo Kinjo
- Division of Rheumatology, Okinawa Chubu Hospital, 281 Miyazato, Uruma, 904-2293, Okinawa, Japan
| | - Sadao Jinno
- Section of Rheumatology, Kobe University School of Medicine, 7-5-2 Kusunoki-chou, Kobe-shi, 650-0017, Hyogo, Japan
| | - Toshitaka Morishima
- Cancer Control Center, Osaka International Cancer Institute, 3-1-69 Otemae, Chūō-ku, 541-8567, Osaka, Japan
| | - Naonobu Sugiyama
- Inflammation & Immunology, Medical Affairs, Pfizer Japan Inc, 3-22-7 Yoyogi, Shibuya-ku, 151-8589, Tokyo, Japan.
| | - Yoshiya Tanaka
- First Department of Internal Medicine, University of Occupational and Environmental Health, 1-1, Iseigaoka, Kitakyushu, 807-8555, Fukuoka, Japan
| | - Soko Setoguchi
- Center for Pharmacoepidemiology and Treatment Science, Rutgers Institute for Health, Health Care Policy and Aging Research, 112 Paterson Street, New Brunswick, NJ, 08901, USA.
- Department of Medicine, Rutgers Robert Wood Johnson Medical School and Institute for Health, Rutgers Biomedical and Health Science, 89 French Street, New Brunswick, NJ, 08901, USA.
| |
Collapse
|
4
|
Yako-Suketomo H, Katayama K, Ogihara A, Asai-Sato M. Process of developing a cervical cancer education program for female university students in a Health and Physical Education teacher training course: an action research. BMC Womens Health 2023; 23:169. [PMID: 37041633 PMCID: PMC10091601 DOI: 10.1186/s12905-023-02273-8] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2022] [Accepted: 03/09/2023] [Indexed: 04/13/2023] Open
Abstract
BACKGROUND The purpose of this study was to develop a cervical cancer education program for students and evaluate the process for female students of an HPE teacher education university who were training to become Japanese Health and Physical Education teachers. METHODS This study used Action Research (AR) methodology. In developing program, we analyzed the description of the teaching material development process, the lectures, and the students' report contents, which was the main activity in the program development. Thirty five third- and fourth-year students majoring in health promotion at a Health and Physical Education teacher education university, which trains Health and Physical Education teachers in Tokyo, Japan, participated in this study. RESULTS After a review of the prototype version of the cervical cancer education material, six out of nine reviewers determined that it can be published. In the revised cervical cancer education materials, messages from students, university lecturers, and gynecologists have been added as a column in the section on 'how to prevent cervical cancer. Analysis of the contents of the texts (16,792 characters in total) of 35 student reports resulted in the generation of 51 codes, 3 categories, and 15 subcategories. CONCLUSIONS This study reflects the intentions of female university students to contribute their knowledge to the development of educational materials on cervical cancer, which, alongside the lectures, have deepened the knowledge and awareness of cervical cancer. Based on this, the teaching material development process, lectures by experts, and students' mindset after learning about cervical cancer is reported in this study. There is a need for more educational programs on cervical cancer that are implemented through the education of female university students.
Collapse
Affiliation(s)
- Hiroko Yako-Suketomo
- Japan Women's College of Physical Education, 8-19-1 Kita-Karasuyama, Setagaya-Ku, Tokyo, 157-8565, Japan
- National Cancer Center, 5-1-1 Tsukiji, Chuo-Ku, Tokyo, 104-0045, Japan
| | - Kayoko Katayama
- Gunma University, 4-2 Aramaki-Cho, Maebashi, Gunma, 371-8510, Japan.
- Kanagawa Cancer Center Research Institute, 2-3-2 Nakao, Asahi-Ku, Yokohama, Kanagawa, 241-8515, Japan.
| | - Atsushi Ogihara
- Waseda University, 2-579-15 Mikajima, Tokorozawa, Saitama, 359-1192, Japan
| | - Mikiko Asai-Sato
- Department of Obstetrics and Gynecology, Nihon University, 30-1 Oyaguchikamimachi, Itabashi-Ku, Tokyo, 173-0032, Japan
| |
Collapse
|
5
|
Katanoda K, Ito H, Ito Y, Katayama K, Nishino Y, Tsutsui A, Togawa K, Tanaka H, Ohno Y, Nakaya T. [Geographic information in National Cancer Registry data: Overseas examples and challenges in Japan]. Nihon Koshu Eisei Zasshi 2023; 70:163-170. [PMID: 36775291 DOI: 10.11236/jph.22-093] [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] [Subscribe] [Scholar Register] [Indexed: 02/14/2023]
Abstract
Worldwide, research based on geographic information of official statistical data, including cancer registries, is utilized for cancer control and public health policies. The National Cancer Registry of Japan was launched in 2016, making it possible to use data on cancer incidence systematically. Given the nature of this comprehensive survey, the usefulness of the National Cancer Registry would be further enhanced when it is utilized at small-regional levels, such as in municipalities or even smaller geographical units. It is essential to maintain a balance between privacy protection and data usability. Currently, the national and prefectural councils determine the availability of the data from the National Cancer Registry at the small-regional level on an individual application basis. Under this framework, use of the data is often restricted or declined. This paper showcases three model countries where geographic information obtained from cancer registry data are widely utilized: the United States, Canada, and the United Kingdom. It further discusses measures to ensure that data are effectively used, without compromising data privacy. In the three countries, data-providing systems have been established to compile the necessary data from the cancer registry and other linked databases, in accordance with the purpose of use. The relationships between healthcare access and various outcomes are elaborately examined at the small-regional level. In Japan, similar utilization of data has not been fully implemented, and there remain many hurdles to the application of the data use. For the National Cancer Registry to promote research and further enhance cancer control, it is necessary to establish a system that enables effective and safe utilization of the data from the National Cancer Registry, including linkage with other data and on-site use.
Collapse
Affiliation(s)
- Kota Katanoda
- Division of Surveillance and Policy Evaluation, National Cancer Center Institute for Cancer Control
| | - Hidemi Ito
- Division of Cancer Information and Control, Department of Preventive Medicine, Aichi Cancer Center Research Institute
| | - Yuri Ito
- Department of Medical Statistics, Research & Development Center, Osaka Medical and Pharmaceutical University
| | - Kayoko Katayama
- Faculty of Informatics, Gunma University
- Kanagawa Cancer Center, Research Institute
| | - Yoshikazu Nishino
- Department of Epidemiology and Public Health, Kanazawa Medical University
| | - Anna Tsutsui
- Graduate School of Medicine Division of Health Sciences, Osaka University
| | - Kayo Togawa
- Division of Surveillance and Policy Evaluation, National Cancer Center Institute for Cancer Control
| | - Hirokazu Tanaka
- Division of Surveillance and Policy Evaluation, National Cancer Center Institute for Cancer Control
| | - Yuko Ohno
- Graduate School of Medicine Division of Health Sciences, Osaka University
| | - Tomoki Nakaya
- Graduate School of Environmental Studies, Tohoku University
| |
Collapse
|
6
|
Affiliation(s)
- Drs K Ishizuka
- Division of General Internal Medicine, Department of Internal Medicine, St. Marianna University School of Medicine, 2-16-1, Sugao, Miyamae, Kawasaki, Kanagawa 216-8511, Japan.
| | - K Katayama
- Division of General Internal Medicine, Department of Internal Medicine, St. Marianna University School of Medicine, 2-16-1, Sugao, Miyamae, Kawasaki, Kanagawa 216-8511, Japan
| | - Y Ohira
- Division of General Internal Medicine, Department of Internal Medicine, St. Marianna University School of Medicine, 2-16-1, Sugao, Miyamae, Kawasaki, Kanagawa 216-8511, Japan.
| |
Collapse
|
7
|
Katayama K, Yuichi M, Ito H. AB0391 ANALYSIS OF CLINICAL IMPROVEMENT BY 5 JAK INHIBITORS AGAINST JAK INHIBITOR iR RA PATIENTS IN JAPANESE CLINICAL PRACTICE. Ann Rheum Dis 2022. [DOI: 10.1136/annrheumdis-2022-eular.934] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
BackgroundRecently, Eular recommended different mode of therapeutic tool to get clinical remission. JAK inhibitors are considered to be one of candidates. Several JAK inhibitors have been used, however there are almost little informations about selection of JAK Inhibitors, especially, informations about secondary JAK for JAK inhibitor iR RA patients.ObjectivesTo analyze clinical response by second JAK inhibitors against JAK inhibitor iR RA patientsin in clinical practice.MethodsIn Japan, five JAK inhibitors have been mainly used in MTX iR or biologics iR patients from 2013 (tofacitinib, JAK1,3), 2017 (baricitinib, JAK 1,2), 2019 (Peficitinib, Pan JAK, in Asia, Japan), 2020,April (upadacitinib, JAK1,2, mainly JAK1) and 2020.Nov (filgotinib, JAK1). In our clinic, these JAK inhibitors were sequentially used to get clinical remission. Numbers of patients who used JAK inhibitors are 28 patients in tofacitinib, 38 patients in baricitinib, 27 patients in peficitinib, 34 patients in upadacitinib, and 13 patients in filgotinib. Among them, 22 JAK inhibitor iR RA patients were investigated for clinical effectiveness.ResultsSummery of study were shown in Tables 1 and 2. Biologics were used in 14 patients and satisfied D2T RA (1st row, green color). For pre JAK inhibitors, 12 tofacitinib, 6 baricitinib, 4 peficitinib have been used. JAK inhibitor for JAK inhibitor iR patients, 13 upadacitinib, 3 baricitinib, 3 peficitinib and 3 filgotinib were used. Six months later, 9/13 patients in upadacitinib, 2/3 in filgotinib, 2/3 in peficitinib, 0/3 in baricitinib, totally 13/22 improved clincal disease activity (Eular good+ moderate response). Clinical improvement about ACPA negative (6th row, yellow color) patients, especially RF negative (5th row, blue color) patients, are incomplete. Double negative (ACPA, RF)or RF negative may be a predicter for clinical response about 1st and successive response for upadacitinib treated patients. Since, first JAK in 4 patients (8 th row, dark green)- 3 tofacitinb, 1 baricitinib respond well firstly (secondary unresponsiveness), tofacitinib may be useful for double negative or RF negative RA patients.ConclusionJak inhibitors are useful for another JAK inhibitor iR RA patients in clinical practice. However, to get good response, baseline immunogenicity, RF/ACPA positivity, JAK specificity need to be considered. To solve, prospective clinical study may be required.ReferencesNoneDisclosure of InterestsNone declared
Collapse
|
8
|
Katayama K, Pan D, Oda M, Okubo T, Mori K. AB1335 BONE MARROW EDEMA SCORE IN HAND X-RAY FILM BY AI DEEP LEARNING ASSOCIATE WITH MRI BONE EDEMA IN RHEUMATOID ARTHRITIS. Ann Rheum Dis 2022. [DOI: 10.1136/annrheumdis-2022-eular.933] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
BackgroundRapid radiographic progression (RRP) was reported to be one of clinical symptom in difficult to treat RA(D2T RA) (1). Eular recommendation for imaging showed BME is strong and independent prognostic factor for bone destruction(2). We reported bone marrow edema (BME) in MRI image was most associated with RRP compared with bone erosion, synovitis in Adalimumab add-on therapy in MTX-IR RA patients(3). To rescue RRP, early detection of BME is important although cost of MRI is expensive and hard to repeat.ObjectivesTo investigate the score of BME in hand X ray film by deep learning between X ray film and MRI BME information can discriminate the differences between BME and non-BME images.MethodsIn this work, we use a neural network consisted of convolutional layers and fully connected layers to classify X-ray images (Figure 1) In this paper, the output is the socre of BME which ranges from 0 to1(threshold = 0.4). We also used an interpretation technique called the Grad-CAM for visual explanations. Hand MRI (1.5T) were used.Figure 1.The convolutional neural network design. A red block “Conv” means a convolutional block. It contains a 2D convolution layer, a leaky relu activation function, a maxpooling layer and a batch normalization layer. The numbers above each “Conv” block are (kernal size, kernal size, kernal number). A green block “FC” is a fully connection layer. The number above it is (neuron number). After the last Softmax layer, the output becomes the probability of BME which ranges from 0 to 1.ResultsRegarding data split, 104 images including 79 non-BME images and 25 BME images are used as a hold-out test set. The rest of the images (473 images) are used as training data and validation data. Five fold cross-validation is used for these 473images. For each fold, there are about 378 images including 297 non-BME images and 81 BME images in the training set. There are about 95 images including 74 non-BME images and 21 BME images in the validation set. In order to fully utilize every image and unify the distribution of the training set and the validation set, the ratio of non-BME and BME is controlled to be the same which is about 3.66:1. The five folds showed similar performance on the hold-out test set. AUC is the area under the ROC curve. As the result, AUC which indicates the general performance of this model, ranged from 0.88 to 0.91. The average precision was 63% and the average recall rate was 87%. In this experiment, the initialization seed will greatly influence the final result. For example, AUC can be reduced to 0.73 from 0.89 because of a different initialization seed. It perhaps results from the shortage of data, which can easily make the neural network drop into a local minimum.We also utilized Grad-cam to visualize the result. The result of Grad-cam shows the importance of each part to the final prediction(Figure 2).Figure 2.Result of Grad-cam. Numbers in the parenthesises are the possibilities of BME. The middle case is unexpected because red region is the surrounding of the hand. The left and right cases may indicate the evidence for prediction.ConclusionThe preliminary result is much better than a random guess. According to this result, there should be a certain difference between BME and non-BME images. If it’s the characteristic of BME that domains this difference, our classification algorithm will be feasible for BME. Our future work is to justify the evidence of the predictions and improve performance.References[1]Nagy G et al. Eular definition of difficult- to - treat to rheumatoid arthritis. Ann Rheum Dis 2021;80:31-35[2]Colebatch AN et al. Eular recommendation for the use of imaging of joints in the clinical management of rheumatoid arthritis. Ann Rheum Dis 2013;72: 804-814[3]Katayama K et al. Bone marrow OEDEMA is more associated with rapid radiographic progression than in synovitis or bone erosion by using low field MRI in bio-naiive rheumatoid arthritis patients treated with adalimumab and methotrexate combination therapy. Ann Rheum Dis 2014, eular meeting SAT0100.Disclosure of InterestsNone declared
Collapse
|
9
|
Ishizuka K, Katayama K, Kaji Y, Tawara J, Ohira Y. Paget-Schroetter syndrome. QJM 2022; 115:54-55. [PMID: 34865158 DOI: 10.1093/qjmed/hcab293] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Affiliation(s)
- K Ishizuka
- Department of General Medicine, International University of Health and Welfare Narita Hospital, 852, Hatakeda, Narita-city, Chiba Prefecture, Japan
| | - K Katayama
- Department of General Medicine, International University of Health and Welfare Narita Hospital, 852, Hatakeda, Narita-city, Chiba Prefecture, Japan
| | - Y Kaji
- Department of General Medicine, International University of Health and Welfare Narita Hospital, 852, Hatakeda, Narita-city, Chiba Prefecture, Japan
| | - J Tawara
- Department of General Medicine, International University of Health and Welfare Narita Hospital, 852, Hatakeda, Narita-city, Chiba Prefecture, Japan
| | - Y Ohira
- Department of General Medicine, International University of Health and Welfare Narita Hospital, 852, Hatakeda, Narita-city, Chiba Prefecture, Japan
| |
Collapse
|
10
|
Yako-Suketomo H, Oura A, Katayama K, Saito K, Ohashi K, Navarro AM. The Effect of a Learning Partner Model-Based Program on Spreading Cancer Prevention Knowledge Using Community Health Volunteers in Japan. J Prim Care Community Health 2022; 13:21501319221110682. [PMID: 35801585 PMCID: PMC9274416 DOI: 10.1177/21501319221110682] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
Objectives: This study examines the implementation and short-term effects of a Learning
Partner Model (LPM)-based educational program on cancer prevention and
control information for community health volunteers in Japan. Methods: The program was undertaken by 3 local governments in collaboration with a
government initiative and offered a 90-min group workshop to community
health volunteers. Community health volunteers (primary participants)
recruited in turn friend or family members (secondary participants) with
whom they were prepared to share the content of the workshop with the help
of printed materials received in the workshop. We conducted
self-administered paper and pencil questionnaire surveys before, immediately
after, and 3 months after the workshop. The t-test, Fisher’s exact test,
paired t-test, and McNemar test were used to compare the 2 groups’
demographic characteristics and healthy habits at pretest. Repeated measures
ANOVA was used to compare cancer prevention knowledge between groups and
over time. Results: Of 142 participants, 107 pairs of learning partners (primary and
corresponding secondary participant) completed all questionnaires. All
primary participants and 37.4% of the secondary participants were women, and
57.9% of the learning partners were spouses. The results showed
significantly higher correct answers on the cancer-prevention knowledge
questions in the post-workshop and follow-up surveys compared to the
pre-workshop survey (P < .001). The increase in
knowledge was observed in all learning-partner groups in all 3 sites. Conclusion: The study demonstrates a promising strategy that can be adapted to the health
needs of the community beyond cancer prevention and control, building on the
efforts of local governments and government health initiatives.
Collapse
Affiliation(s)
- Hiroko Yako-Suketomo
- Japan Women's College of Physical Education, Setagaya-ku, Tokyo, Japan.,National Cancer Center, Chuo-ku, Tokyo, Japan
| | - Asae Oura
- Sapporo Medical University, Sapporo, Hokkaido, Japan
| | - Kayoko Katayama
- Gunma University, Maebashi, Gunma, Japan.,Kanagawa Cancer Center Research Institute, Yokohama, Kanagawa, Japan
| | | | - Ken Ohashi
- National Cancer Center, Chuo-ku, Tokyo, Japan
| | - Ana M Navarro
- University of California, San Diego, La Jolla, CA, USA
| |
Collapse
|
11
|
Affiliation(s)
- K Ishizuka
- Department of General Medicine, International University of Health and Welfare Narita Hospital, 852 Hatakeda, Narita-city, Chiba pref., Japan
| | - K Katayama
- Department of General Medicine, International University of Health and Welfare Narita Hospital, 852 Hatakeda, Narita-city, Chiba pref., Japan
| | - Y Kaji
- Department of General Medicine, International University of Health and Welfare Narita Hospital, 852 Hatakeda, Narita-city, Chiba pref., Japan
| | - J Tawara
- Department of General Medicine, International University of Health and Welfare Narita Hospital, 852 Hatakeda, Narita-city, Chiba pref., Japan
| | - Y Ohira
- Department of General Medicine, International University of Health and Welfare Narita Hospital, 852 Hatakeda, Narita-city, Chiba pref., Japan
| |
Collapse
|
12
|
Abstract
During the COVID-19 pandemic, it has been important to both minimize the risk of infection and restore daily life. As a typical example, mass gathering events, such as sporting events, are gradually becoming more common, thanks to the measures taken to contain COVID-19. Some pilot studies have been launched at governments' initiative to investigate the risk of infection without measures such as face masks and physical distancing at mass gathering events, but the ethics of these studies should be carefully considered. On the other hand, it is still beneficial to implement infection control measures at mass gathering events and, in parallel, to estimate the risk of infection with measures in place, especially under a lack of vaccination progress or the spread of mutant strains possibly resistant to vaccines. To help improve compliance with measures taken by spectators and organizers and to ensure their effectiveness, we have conducted quantitative evaluations of the implementation of such measures by monitoring CO2 concentrations, assessing the proportion of people wearing face masks and analysing human flow at the event. This approach allows us to share our observations with stakeholders and participants, enabling us to protect the culture of mass gathering events, minimize the risk of infection and restore a sense of well-being in daily life.
Collapse
Affiliation(s)
- M Murakami
- Department of Health Risk Communication, Fukushima Medical University School of Medicine, 1 Hikarigaoka, Fukushima, Fukushima 960-1295, Japan
| | - T Yasutaka
- Institute for Geo-Resources and Environment, National Institute of Advanced Industrial Science and Technology (AIST), 1-1-1, Higashi, Tsukuba, Ibaraki 305-8567, Japan
| | - M Onishi
- Artificial Intelligence Research Center, National Institute of Advanced Industrial Science and Technology (AIST), 2-4-7 Aomi, Koto-ku, Tokyo 135-0064, Japan
| | - W Naito
- Research Institute of Science for Safety and Sustainability, National Institute of Advanced Industrial Science and Technology (AIST), 16-1, Onogawa, Tsukuba, Ibaraki 305-8569, Japan
| | - N Shinohara
- Research Institute of Science for Safety and Sustainability, National Institute of Advanced Industrial Science and Technology (AIST), 16-1, Onogawa, Tsukuba, Ibaraki 305-8569, Japan
| | - T Okuda
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku, Yokohama, Kanagawa 223-8522, Japan
| | - K Fujii
- R&D-Hygiene Science Research Center, Kao Corporation, 2-1-3, Bunka, Sumida-ku, Tokyo 131-8501, Japan
| | - K Katayama
- Laboratory of Sequence Analysis, Human Genome Center, The Institute of Medical Science, The University of Tokyo, 4-6-1 Shirokanedai, Minato-ku, Tokyo 108-8639, Japan
| | - S Imoto
- Division of Health Medical Intelligence, Human Genome Center, The Institute of Medical Science, The University of Tokyo, 4-6-1 Shirokanedai, Minato-ku, Tokyo 108-8639, Japan
| |
Collapse
|
13
|
Ito H, Dohi K, Zhe Y, Ali Y, Katayama K, Okamoto R, Ito M. Renocardiac protective effects of SGLT2 inhibitor combined with angiotensin receptor blocker in salt sensitive Dahl rats. Eur Heart J 2021. [DOI: 10.1093/eurheartj/ehab724.3415] [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
Kidney plays a central role in regulating salt-sensitivity of blood pressure (BP) to governs sodium excretion via several mechanisms including pressure natriuresis and the actions of renal sodium transporters.
Purpose
We clarified the effects of combination treatment of sodium-glucose cotransporter 2 (SGLT2) inhibitor and angiotensin receptor blocker (ARB) on BP and the pathogenesis of renocardiac injuries, and elucidated underlying molecular mechanisms involved in the regulation of renal sodium handling in the development of salt-sensitivity by comparing with each monotreatment in Dahl salt-sensitive (DSS) hypertensive rats.
Methods
DSS rats were treated orally for 8-weeks with normal salt diet (0.3% NaCl) (NS/Cont group), high salt diet (8% NaCl) (HS/Cont group), high salt diet with ipragliflozin (0.04%) (HS/Ipra group), high salt diet with losartan (0.05%) (HS/Los group), or high salt diet with combination of ipragliflozin and losartan (HS/Ipra+Los group).
Results
The combination group significantly reduced systolic BP compared with either high salt diet control group, losartan or ipragliflozin monotreatment groups (HS/Ipra+Los: 182.5±18.4mmHg vs HS/Cont: 227.7±26.1; HS/Ipra: 216.6±26.9; HS/Los: 208.6±21.6, at 8-weeks of treatment, P<0.05, respectively) (Figure 1A). The slope of pressure-natriuresis curve was significantly increased in the HS/Ipra+Los group compared to that in the HS/Cont group (interaction P=0.024), HS/Ipra group (P=0.009), and HS/Los group (P=0.084) using the linear regression model (Figure 1B), which indicated that only the combination treatment of ipragliflozin and losartan improved salt-sensitivity. The combined treatment significantly improved creatinine clearance (HS/Ipra+Los: 3.3±0.9mL/min vs HS/Cont: 1.1±0.5; HS/Ipra: 1.7±0.6; HS/Los: 1.9±0.8, P<0.05, respectively). The combination treatment also significantly ameliorated glomerulosclerosis, and improved cardiomyocyte hypertrophy and perivascular fibrosis (Figure 1C). Angiotensin II type 1 receptor (AT1R) protein expression level in the kidney was remarkably suppressed in the combination treatment group compared to the other high salt diet groups. The protein expression level of Na+/H+ exchanger isoform 3 (NHE3) and Na+-K+-Cl– cotransporter 2 (NKCC2), two of major sodium transports in the renal tubules, were significantly decreased with losartan monotreatment and combination treatment, but not with ipragliflozin monotreatment (Figure 2).
Conclusions
The dual inhibition of SGLT2 and AT1R effectively improved salt-sensitivity via reducing renal expression levels of the sodium transporters, which eventually lead to renocardiac protection. Thus, the combination treatment could be a novel and useful therapeutic strategy for treating salt-sensitive hypertension and renal injury in non-diabetic patients.
Funding Acknowledgement
Type of funding sources: Public grant(s) – National budget only. Main funding source(s): Grant-in-Aid for Scientific Research
Collapse
Affiliation(s)
- H Ito
- Mie University Graduate School of Medicine, Department of Cardiology and Nephrology, Tsu, Japan
| | - K Dohi
- Mie University Graduate School of Medicine, Department of Cardiology and Nephrology, Tsu, Japan
| | - Y Zhe
- Mie University Graduate School of Medicine, Department of Cardiology and Nephrology, Tsu, Japan
| | - Y Ali
- The University of Mississippi Medical Center, Department of Pharmacology, Jackson, United States of America
| | - K Katayama
- Mie University Graduate School of Medicine, Department of Cardiology and Nephrology, Tsu, Japan
| | - R Okamoto
- Mie University Graduate School of Medicine, Department of Cardiology and Nephrology, Tsu, Japan
| | - M Ito
- Mie University Graduate School of Medicine, Department of Cardiology and Nephrology, Tsu, Japan
| |
Collapse
|
14
|
Ueda Y, Katayama K, Yagi A, Kimura T. The Chasm We Must Cross in Japan for Re-promotion of the HPV Vaccine. Cancer Prev Res (Phila) 2021; 14:683-686. [PMID: 34272250 DOI: 10.1158/1940-6207.capr-21-0091] [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] [Received: 03/03/2021] [Revised: 03/26/2021] [Accepted: 04/26/2021] [Indexed: 11/16/2022]
Abstract
In Japan, the human papillomavirus (HPV) vaccination rate has decreased from around 70% to less than 1% due to repeated media reports of diverse symptoms after HPV vaccination, and to suspension of the governmental recommendation. The challenges for re-promotion of the vaccine will be discussed from a marketing perspective. The adopter categories by which a new product penetrates the market can be divided into five groups, including Innovators, Early adopters, Early majority, Late majority, and Laggards The 16.0% line, which is the sum of the percentages of the innovators and the early adopters, is thought to be an important determinate of whether a new product will penetrate the market. By various initiatives, vaccination coverage has recently risen to about 10%; however, there is still a large chasm difficult to cross before reaching the majority of individuals. To cross that chasm, peer education will be essential. First, community health workers will need to be educated so that they have a firm understanding of HPV vaccine and can confidently recommend vaccination to the targeted population. That population will be expected to pass on that recommendation to their acquaintances, resulting in widening dissemination of HPV vaccine among the majority.
Collapse
Affiliation(s)
- Yutaka Ueda
- Department of Obstetrics and Gynecology, Osaka University Graduate School of Medicine, Suita, Osaka, Japan.
| | - Kayoko Katayama
- Kanagawa Cancer Center Research Institute, Yokohama, Kanagawa, Japan
| | - Asami Yagi
- Department of Obstetrics and Gynecology, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - Tadashi Kimura
- Department of Obstetrics and Gynecology, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| |
Collapse
|
15
|
de Luise C, Sugiyama N, Morishima T, Higuchi T, Katayama K, Nakamura S, Chen H, Nonnenmacher E, Hase R, Jinno S, Kinjo M, Suzuki D, Tanaka Y, Setoguchi S. Validity of claims-based algorithms for selected cancers in Japan: Results from the VALIDATE-J study. Pharmacoepidemiol Drug Saf 2021; 30:1153-1161. [PMID: 33960542 PMCID: PMC8453514 DOI: 10.1002/pds.5263] [Citation(s) in RCA: 12] [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: 11/20/2020] [Revised: 04/23/2021] [Accepted: 05/03/2021] [Indexed: 12/19/2022]
Abstract
Purpose Real‐world data from large administrative claims databases in Japan have recently become available, but limited evidence exists to support their validity. VALIDATE‐J validated claims‐based algorithms for selected cancers in Japan. Methods VALIDATE‐J was a multicenter, cross‐sectional, retrospective study. Disease‐identifying algorithms were used to identify cancers diagnosed between January or March 2012 and December 2016 using claims data from two hospitals in Japan. Positive predictive values (PPVs), specificity, and sensitivity were calculated for prevalent (regardless of baseline cancer‐free period) and incident (12‐month cancer‐free period; with claims and registry periods in the same month) cases, using hospital cancer registry data as gold standard. Results 22 108 cancers were identified in the hospital claims databases. PPVs (number of registry cases) for prevalent/incident cases were: any malignancy 79.0% (25 934)/73.1% (18 119); colorectal 84.4% (3519)/65.6% (2340); gastric 87.4% (3534)/76.8% (2279); lung 88.1% (2066)/79.9% (1636); breast 86.4% (4959)/59.9% (3185); pancreatic 87.1% (582)/80.4% (508); melanoma 48.7% (46)/42.9% (36); and lymphoma 83.6% (1457)/77.8% (1035). Specificity ranged from 98.3% to 100% (prevalent)/99.5% to 100% (incident); sensitivity ranged from 39.1% to 67.6% (prevalent)/12.5% to 31.4% (incident). PPVs of claims‐based algorithms for several cancers in patients ≥66 years of age were slightly higher than those in a US Medicare population. Conclusions VALIDATE‐J demonstrated high specificity and modest‐to‐moderate sensitivity for claims‐based algorithms of most malignancies using Japanese claims data. Use of claims‐based algorithms will enable identification of patient populations from claims databases, while avoiding direct patient identification. Further research is needed to confirm the generalizability of our results and applicability to specific subgroups of patient populations.
Collapse
Affiliation(s)
- Cynthia de Luise
- Safety Surveillance Research, Pfizer Inc, New York, New York, USA
| | - Naonobu Sugiyama
- Inflammation & Immunology, Medical Affairs, Pfizer Japan, Tokyo, Japan
| | - Toshitaka Morishima
- Department of Cancer Strategy, Cancer Control Center, Osaka International Cancer Institute, Osaka, Japan
| | - Takakazu Higuchi
- Blood Transfusion Department, Dokkyo Medical University Saitama Medical Center, Koshigaya, Japan
| | - Kayoko Katayama
- Cancer Prevention and Cancer Control Division, Kanagawa Cancer Center Research Institute, Yokohama, Japan
| | - Sho Nakamura
- School of Health Innovation, Kanagawa University of Human Services, Yokosuka, Japan.,Department of Clinical Oncology, Faculty of Medicine, Yamagata University, Yamagata, Japan
| | - Haoqian Chen
- Center for Pharmacoepidemiology and Treatment Science, Rutgers Institute for Health, Health Care Policy and Aging Research, New Brunswick, New Jersey, USA
| | - Edward Nonnenmacher
- Center for Pharmacoepidemiology and Treatment Science, Rutgers Institute for Health, Health Care Policy and Aging Research, New Brunswick, New Jersey, USA
| | - Ryota Hase
- Department of Infectious Diseases, Kameda Medical Center, Kamogawa, Japan.,Department of Infectious Diseases, Japanese Red Cross Narita Hospital, Narita, Japan
| | - Sadao Jinno
- Section of Rheumatology, Kobe University School of Medicine, Kobe, Japan
| | - Mitsuyo Kinjo
- Division of Rheumatology, Okinawa Chubu Hospital, Uruma, Japan
| | - Daisuke Suzuki
- Department of Infectious Diseases, Fujita Health University, Toyoake, Japan
| | - Yoshiya Tanaka
- The First Department of Internal Medicine, School of Medicine, University of Occupational and Environmental Health Japan, Kitakyushu, Japan
| | - Soko Setoguchi
- Center for Pharmacoepidemiology and Treatment Science, Rutgers Institute for Health, Health Care Policy and Aging Research, New Brunswick, New Jersey, USA.,Department of Medicine, Rutgers Robert Wood Johnson Medical School and Institute for Health, New Brunswick, New Jersey, USA
| |
Collapse
|
16
|
Ono K, Kasajima R, Katayama K, Miyagi Y, Yokose T. Clinicopathological and molecular characteristics of endometrial neuroendocrine carcinomas reveal preexisting endometrial carcinoma origin. Pathol Int 2021; 71:491-499. [PMID: 34015161 DOI: 10.1111/pin.13108] [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] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2020] [Accepted: 04/22/2021] [Indexed: 02/05/2023]
Abstract
Endometrial neuroendocrine carcinoma is a rare disease with unknown clinicopathological and molecular characteristics. Therefore, we conducted the present study to elucidate the clinicopathological and molecular characteristics of endometrial neuroendocrine carcinoma, as compared to conventional endometrial carcinoma, and to determine the origin of the former. We analyzed 22 endometrial neuroendocrine carcinomas and 22 conventional endometrial neoplasia cases with respect to clinical, histological and genetic features. Of these, 21/22 neuroendocrine carcinoma cases were admixed carcinomas, with 15 admixed with endometrioid adenocarcinoma. Genetic analysis of hotspot mutations in 50 cancer-related genes revealed that the neuroendocrine carcinoma group carried mutations in PIK3CA (12/22 cases; 54%) and PTEN (8/22 cases; 36%), commonly encountered in endometrioid adenocarcinoma. Comparative statistical analysis of neuroendocrine carcinoma and conventional endometrial neoplasia cases showed a significant trend only in PIK3CA mutation. Moreover, in six mixed-type neuroendocrine carcinoma cases, macrodissection was used to separate the neuroendocrine carcinoma and endometrioid adenocarcinoma components for next-generation sequencing, which revealed several mutations common among the two. These findings suggest that endometrial neuroendocrine carcinoma could originate from conventional endometrial neoplasia, especially endometrioid adenocarcinoma.
Collapse
Affiliation(s)
- Kyoko Ono
- Department of Pathology, Kanagawa Cancer Center, Kanagawa, Japan.,Department of Clinical Pathology, Yokohama Municipal Citizen's Hospital, Kanagawa, Japan.,Department of Molecular Pathology, Yokohama City University, Kanagawa, Japan
| | - Rika Kasajima
- Molecular Pathology and Genetics Division, Kanagawa Cancer Center Research Institute, Kanagawa, Japan
| | - Kayoko Katayama
- Unit of Cancer Survivorship and Education, Kanagawa Cancer Center Research Institute, Kanagawa, Japan
| | - Yohei Miyagi
- Molecular Pathology and Genetics Division, Kanagawa Cancer Center Research Institute, Kanagawa, Japan
| | - Tomoyuki Yokose
- Department of Pathology, Kanagawa Cancer Center, Kanagawa, Japan
| |
Collapse
|
17
|
Hirono Y, Katayama K, Tsubaki T, Morikawa M, Goi T. Clinical impact of preoperative serum cholinesterase in colorectal cancer. Clin Nutr ESPEN 2020. [DOI: 10.1016/j.clnesp.2020.09.491] [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]
|
18
|
Nemoto D, Yokose T, Katayama K, Murakami S, Kato T, Saito H, Suzuki M, Eriguchi D, Samejima J, Nagashima T, Ito H, Yamada K, Nakayama H, Masuda M. Tissue surface area and tumor cell count affect the success rate of the Oncomine Dx Target Test in the analysis of biopsy tissue samples. Thorac Cancer 2020; 12:194-200. [PMID: 33185331 PMCID: PMC7812068 DOI: 10.1111/1759-7714.13743] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [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: 09/14/2020] [Revised: 10/27/2020] [Accepted: 10/28/2020] [Indexed: 12/25/2022] Open
Abstract
Background The Oncomine Dx Target Test (ODxTT) is a next‐generation sequencing‐based companion diagnostic test which has been recently developed; however, its analysis success rate could be improved, especially for small samples. The aim of this study was to identify the pathological factors associated with biopsy specimens that affect the analysis success rate of ODxTT. Methods We retrospectively investigated 119 cases subjected to ODxTT at Kanagawa Cancer Center. Data pertaining to the results of BRAF V600E mutation analysis in ODxTT and pathological factors based on microscope slides were collected. Pathological factors including tissue surface area, tumor cell count, and tumor content rate were assessed. We constructed receiver operating characteristic curves and determined the optimal cutoff values of each pathological factor. Multivariate logistic analysis was used to identify significant factors. Results A total of 98 of 119 samples were successfully analyzed (75.6%). The tissue surface area and tumor cell count were significantly higher in the group associated with analysis success (P < 0.001 and P = 0.011, respectively), and their optimal cutoff values were 1.04 mm2 and 375 cells, respectively. A tissue surface area > 1.04 mm2 and tumor cell count >375 cells had a positive effect on the analysis success rate of ODxTT (odds ratio [OR] 0.10; 95% confidence interval [CI]: 0.03–0.35; P < 0.001 and OR 0.25; 95% CI: 0.07–0.90; P = 0.033, respectively). Conclusions Selecting samples with a tissue surface area > 1.04 mm2 and a tumor cell count >375 cells might improve the analysis success rate of ODxTT. Key points Significant findings of the study: We found that a tissue surface area > 1.04 mm2 and tumor cell count >375 cells had a positive effect on the analysis success rate of ODxTT in the analysis of biopsy tissue samples. What this study adds: It is sometimes necessary to assess genetic alterations with a small biopsy sample in daily practice. The criteria mentioned above will help to determine which tests should be performed, ODxTT or multiple single‐gene testing.
Collapse
Affiliation(s)
- Daiji Nemoto
- Department of Thoracic Surgery, Kanagawa Cancer Center, Yokohama, Japan
| | - Tomoyuki Yokose
- Department of Pathology, Kanagawa Cancer Center, Yokohama, Japan
| | - Kayoko Katayama
- Unit of Cancer Survivorship and Education, Kanagawa Cancer Center Research Institute, Yokohama, Japan
| | - Shuji Murakami
- Department of Thoracic Oncology, Kanagawa Cancer Center, Yokohama, Japan
| | - Terufumi Kato
- Department of Thoracic Oncology, Kanagawa Cancer Center, Yokohama, Japan
| | - Haruhiro Saito
- Department of Thoracic Oncology, Kanagawa Cancer Center, Yokohama, Japan
| | - Masaki Suzuki
- Department of Pathology, Kanagawa Cancer Center, Yokohama, Japan
| | - Daisuke Eriguchi
- Department of Thoracic Surgery, Kanagawa Cancer Center, Yokohama, Japan
| | - Joji Samejima
- Department of Thoracic Surgery, Kanagawa Cancer Center, Yokohama, Japan
| | - Takuya Nagashima
- Department of Thoracic Surgery, Kanagawa Cancer Center, Yokohama, Japan
| | - Hiroyuki Ito
- Department of Thoracic Surgery, Kanagawa Cancer Center, Yokohama, Japan
| | - Kouzo Yamada
- Department of Thoracic Oncology, Kanagawa Cancer Center, Yokohama, Japan
| | - Haruhiko Nakayama
- Department of Thoracic Surgery, Kanagawa Cancer Center, Yokohama, Japan
| | - Munetaka Masuda
- Department of Surgery, Yokohama City University, Yokohama, Japan
| |
Collapse
|
19
|
Narimatsu H, Sakaguchi M, Nakamura S, Katayama K. Future Patient Incidence in Hemato-Oncology: A Study Using Data from Cancer Registries in Japan. Risk Manag Healthc Policy 2020; 13:2407-2414. [PMID: 33173364 PMCID: PMC7648558 DOI: 10.2147/rmhp.s277207] [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: 08/20/2020] [Accepted: 10/17/2020] [Indexed: 11/23/2022] Open
Abstract
Purpose The distribution of patients with hematological malignancies is expected to change markedly in the future due to aging of the Japanese population. We assessed the expected incidence rates of leukemia, malignant lymphoma, and multiple myeloma using national population estimates and data from the Kanagawa Cancer Registry. Patients and Methods To evaluate the effects of community aging, we compared expected future incidences of hematological malignancies in Kanagawa with other three areas, namely the Yamagata, Osaka, and Nagasaki prefectures, which have different populations and predicted aging rates. Results The total number of patients newly diagnosed with hematological malignancy in Kanagawa in 2010 was 1970. This was predicted to increase to 2581 by 2025 and to 2712 by 2040. Trends were very similar for all three hematological malignancies. These incidence rates were predicted to increase continuously in patients aged ≥65 years from 2010 to 2040, with a 169% increase in leukemia, a 167% increase in malignant lymphoma, and a 169% increase in multiple myeloma. A continuous increase in the population aged ≥65 years was also noted in the other three prefectures. Conclusion The distribution demographic of patients with hematological malignancies is expected to change in the future as the number of elderly patients increases.
Collapse
Affiliation(s)
- Hiroto Narimatsu
- Cancer Prevention & Control Division, Kanagawa Cancer Center Research Institute, Yokohama 241-8515, Japan.,Graduate School of Health Innovation, Kanagawa University of Human Services, Kawasaki, Kanagawa 210-0821, Japan
| | - Masahiko Sakaguchi
- Cancer Prevention & Control Division, Kanagawa Cancer Center Research Institute, Yokohama 241-8515, Japan
| | - Sho Nakamura
- Cancer Prevention & Control Division, Kanagawa Cancer Center Research Institute, Yokohama 241-8515, Japan.,Graduate School of Health Innovation, Kanagawa University of Human Services, Kawasaki, Kanagawa 210-0821, Japan
| | - Kayoko Katayama
- Cancer Prevention & Control Division, Kanagawa Cancer Center Research Institute, Yokohama 241-8515, Japan
| |
Collapse
|
20
|
Kitamura K, Terato K, Fukai R, Katayama K, Waritani T, Shionoya H. THU0066 DOES PORPHYROMONAS GINGIVALLIS MODULATE GUT MICROBIOME RESULTING IN AGGRAVATION OF DISEASE ACTIVITY IN RHEUMATOID ARTHRITIS? Ann Rheum Dis 2020. [DOI: 10.1136/annrheumdis-2020-eular.1368] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Background:Oral Porphyromonas gingivalis (Pg) infection in rheumatoid arthritis (RA) model revealed aggravation of arthritis, dysbiosis and higher serum LPS (1). We reported that IgA/IgG antibody against Pg-LPS ratio among the patients with RA related to disease marker levels and disease activities (2). However, there are still few reports related to Gut-Oral axis.Objectives:Firstly, how total intestinal bacteria, well-known 5 species of gut bacteria behave in relation to disease activities and markers. Secondly, how infection by Pg aggravate RA in relation to microflora, disease activities and markers.Methods:Eighty-seven RA patients with inadequate response to conventional synthetic DMARDs were evaluated. Age: 68.1±8.7 years, female (%): 79.3, disease duration: 136±91 months, DAS28-ESR: 4.68±0.98. Fecal bacteria numbers of total bacteria, Bifidobacterium, Lactobacillus, E. coli, Bacteroides and Staphylococcus were determined by PCR analysis. Fecal and serum LPS levels were measured by LAL assay. Serum endotoxin neutralizing activity (ENC) was determined along with RA disease activity and markers measurement. Infection of Pg was proofed by IgG and IgA anti-LPS antibody measurement. The statistical relationships between variables were analyzed by Spearman’s non-parametric rank correlation analysis and expressed as Spearman’s rank correlation coefficient “ρ”.Results:At first, we could neglect background effects as duration, methotrexate dose for measuring total or each bacterial number (data not shown). As shown in Figure 1, total bacteria only showed positive correlation with IL-6 levels (ρ= 0.230, p = 0.034), however inversely correlated with disease activities such as pVAS (ρ= -0.223, p = 0.038) and Pain VAS (ρ= -0.260, p = 0.015). While no significant relationship was observed between the numbers of each of 5 species of bacteria and the disease activities and makers except Bifidobacterium. In contrast, LPS-related markers showed positive correlation with disease activities and markers. Among LPS-related biomarker values, serum LBP levels mainly correlated with most of RA biomarker-ESR (ρ= 0.497, p <0.0001), CRP (ρ= 0.697, p <0.0001), MMP3 (ρ= 0.546, p <0.0001) and so on. Fecal LPS level was shown significant positive correlation with disease activities, however almost no correlation was observed in serum LPS level. IgA anti-LPS antibody levels to Pg, resulted in inverse correlation with total bacteria (ρ= -0.441, p<0.0001), Lactobacillus (ρ= -0.224, p=0.037), Bacteroides (ρ = -0.200, p = 0.064) and E. coli (ρ= -0.260, p = 0.015), moreover, positive correlation with serum LPS (ρ= 0.284, p = 0.008) and LBP (ρ= 0.247, p = 0.021) and inverse correlation with ENC (ρ = -0.321, p = 0.002) were found. On the other hand, IgG anti-Pg-LPS antibody levels which reflect systemic infection, inversely correlated SDAI (ρ = -0.308, p = 0.004), PainVAS (ρ = -0.433, p < 0.0001), and so on.Conclusion:Serum LBP highly associated with RA activity and markers, which suggests bacterial LPS as roles in triggering and perpetuating disease activity in RA. In contrast, IgA anti-Pg-LPS, IgG anti-Pg-LPS antibody reflecting infection of Pg, negatively associated with intestinal total bacteria (ρ=-0.4405, p<0.0001), RA disease activities, respectively. These results may show a possible oral -gut relationship resulting in aggravation of disease activity in RA.Disclosure of interest:None declaredReferences:[1]Sato K, Takahashi N, Kato T et al. Aggravation of collagen induced arthritis by orally administered Porphyromonas gingivalis through modulation of the gut microbiota and gut immune system. Sci Rep 2017; 7:6955.[2]Kuniaki Terato, Takaki Waritani, Richio Fukai et al. Contribution of bacterial pathogens to evoking serological disease markers and aggravating disease activity in rheumatoid arthritis. PloS One. 2018;13(2): e0190588.Disclosure of Interests:None declared
Collapse
|
21
|
Katayama K, Okubo T, Yujiro K, Fukai R, Sato T, Yuichi M, Abe S, Ito H. SAT0146 INHIBITION OF RADIOGRAPHIC PROGRESSION BY IGURATINOD IN 116 JAPANESE RHEUMATOID ARTHIRITIS PATIENTS DESPITE CONVENTIONAL SYNTHETIC DISEASE-MODIFYING ANTIRHEUMATIC DRUGS THERAPY. Ann Rheum Dis 2020. [DOI: 10.1136/annrheumdis-2020-eular.1434] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Background:Japanese double-blind clinical practice studies of Iguratimod (IGU) for active rheumatoid arthritis (RA) patients indicated an early and sustained efficacy as a new conventional synthetic disease-modyfing anti-rheumatic drugs (csDMARDs) [1] as well as the safety of the treatment[2]. IGU also inhibit activation of NFkB and production of RANKL, indicating strong inhibiting activity against bone destruction. However, studies focused on the inhibitory effects of joint destruction by IGU has been poorly documented in clinical practice (3).Objectives:To evaluate inhibitory effect during 1 year by additional IGU therapy in 116 RA patients despite csDMARDs therapy.Methods:Inhibitory effects of joint damage were evaluated by modified total Sharp scoring (mTSS) at baseline and 1 year after IGU prescription. RA activity was measured by DAS28-ESR.Results:The subjects were 116 cases, 30 male, age 63.2 yrs, disease duration 93.7 months. MTX was used weekly (84 cases, 72.4%), and cs DMARDs were used as BUC 43 cases, SASP 13 cases, TAC 5 cases, and LEF 1 cases. bDMARDs were used even in 8 cases, and steroids were used in 3.9 mg (70 cases, 60.3 %). Complications were observed in 70 cases (60.3%). DAS28-ESR were significantly improved from 4.29 (baseline) to 3.65 (6 months), 3.68 (12 months), respectively (P<0.0001). As shown in Figure 1, joint destruction measured by mTSS was significantly suppressed from 7.74 to 0.57 at 1 year (P<0.0001). 70.6% of patients satisfied structural remission (ΔmTSS≤0.5). Clinically relevant radiographic progression (CRRP)(mTSS>3) was observed in 10 cases (8.6%), and rapid radiographic progression(RRP) (mTSS≥5) was observed in 2 cases (1.6%). Adverse events were observed in 26 cases (22.4 %).To investigate prognostic factor for CRRP, clinical data in baseline, 6, 12 months between ten patients with CRRP and 82 patients with structural remission were compared. As shown in Table 1, longer disease duration, more SJC (P<0.05), High CRP level(P<0.005) were prognostic for CRRP in IGU treated patients.Conclusion:Iguratimod suppressed not only clinical activities but also joint destruction in RA patients resistant to csDMARDs therapy.Table 1. Prognostic factor for CRRPReferences:[1]Ishiguro N, Yamamoto K, Katayama K et al. Concomitant iguratimod therapy in patients with active rheumatoid arthritis despite stable doses of methotrexate a randomized, double-blind, placebo-controlled trial. Mod Rheumatol. 2013;23(3):430-9[2]Hara M, Ishiguro N, Katayama K et al. Safety and efficacy of combination therapy of iguratimod with methotrexate for patients with active rheumatoid arthritis with an inadequate response to methotrexate: an open-level extension of a randomized, double-blind, placebo-controlled trial. Mod Rheumatol. 2014;24(3):410–8.[3]Ishikawa K, Ishikawa J.Iguratimod, a synthetic disease modifying anti-rheumatic drug inhibiting the activation of NF-jB and production of RANKL: Its efficacy, radiographic changes,safety and predictors over two years’ treatment for Japanese rheumatoid arthritis patients. Mod.Rheumatol.2019,29(3), 418–429.Disclosure of Interests:None declared
Collapse
|
22
|
Katayama K, Yujiro K, Okubo T, Fukai R, Sato T, Yuichi M, Abe S, Ito H. FRI0127 Suppression of radiographic progression after gradual methotrexate tapering in patients with rheumatoid arthritis patients maintaining low disease activity - Prospective multicenter study-. Ann Rheum Dis 2020. [DOI: 10.1136/annrheumdis-2020-eular.1415] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
Background:Many studies have been reported to reduce/discontinue Biologics in the treatment of rheumatoid arthritis (RA). In contrast, study for tapering methotrexate (MTX) has been limited (1,2).Objectives:We prospectively examined whether bone destruction will progress at 48 weeks after tapering or discontinuing MTX (UMIN000028875).Methods:The subjects were RA patients who have maintained low disease activity or lower for 24 weeks or more in DAS28-CRP after MTX administration. Patients having PDUS Grade 2 or 3 per site by bilateral hand ultrasonography (26 area) were excluded in this study owing to risk for joint destruction. The joint destruction was evaluated by the joint X-ray evaluation by modified total Sharp scoring (mTSS) at 1 year after the start of tapering MTX. Evaluation of clinical disease activities, severe adverse events, the continuation rate during MTX tapering were also evaluated. According to tapering response, prognostic factor for good response for tapering, joint destruction was determined. Predictors for successful tapering MTX and progression of bone destruction were determined. Statistical analysis was performed by t-test or Wilcoxon rank sum test using SAS .13.2 software.Results:The subjects were 79 (16 males, 63 females). Age average 60.9 years, disease duration 4 years 4 months, MTX dose 8.43 mg / w, DAS28-CRP 1.52, DMARDs (24.3%), ACPA 192.7 U / ml (70.5%), RF 55.6 IU / ml (65.4%).MTX was tapered from an average of 8.43 mg / w before study to 5.46 mg / w one year later. In the treatment evaluation, DAS28-CRP increased from 1.52 to 1.84. 89.7% of subjects did not progress joint damage. Other disease activities significantly increased (Table 1). The one-year continuation rate was 78.2%. Since tapering effects were varied widely, we divided patients into three groups; Flared group (N=14, initial MTX dose 8.71mg/w, final MTX dose 8.42mg/w), Low response group (N=31, final MTX reduction rate< 50%, initial MTX dose 8.93mg/w, final MTX dose 6.22mg/w), High response group (N=34, final MTX reduction rate≥ 50%, initial MTX dose 8.5mg/w, final MTX dose 3.15mg/w)(Table 2).Higher RF value at baseline and higher MTX dose at 3M, 6M were predictors of whether a subject was in Low response group or High Response group. Higher RF value and mTSS at baseline and higher MTX dose at 6M were predictors whether a subject was in Flared group or High response group. Lower age was predictor of whether a subject was in Flared group or Low responder group. Finally, mean ΔmTSS /y in Flared group (0.36) was not significantly higher than in low response group (0.07) and in high response group (0.01).Table 1Table 2.Predictors for successful tapering MTX and progression of bone destructionConclusion:Patients with MTX-administered low disease activity and finger joint echo PDUS grade 1 satisfy almost no joint destruction even after MTX reduction. For tapering, predictors may be helpful for maintaining patient’s satisfaction.References:[1]Baker KF, Skelton AJ, Lendrem DW et al. Predicting drug-free remission in rheumatoid arthritis: A prospective interventional cohort study. J. Autoimmunity. 2019;105: 102298.[2]Lillegraven S, Sundlisater N, Aga A et al. Tapering of Conventional Synthetic Disease Modifying Anti-Rheumatic Drugs in Rheumatoid Arthritis Patients in Sustained Remission: Results from a Randomized Controlled Trial. American College of Rheumatology. 2019; Abstract L08.Disclosure of Interests:None declared
Collapse
|
23
|
Katayama K, Okubo T, Sato T, Fukai R, Yuichi M, Yujiro K, Ito H. AB0298 LONG-TERM SUPPRESSION OF RAPID RADIOGRAPHIC PROGRESSION AFTER DISCONTINUATION/REDUCTION OF SHORT-TERM BIOLOGIC THERAPY IN PATIENTS WITH EARLY DESTRUCTIVE RHEUMATOID ARTHRITIS ACCOMPANIED WITH EXTENSIVE BONE MARROW EDEMA. Ann Rheum Dis 2020. [DOI: 10.1136/annrheumdis-2020-eular.3187] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
Background:We reported that short-term (3 or 6 months) treatment with biologics (BIO) group compared with conventional synthetic non-biological disease-modifying anti rheumatic drug (csDMARDs) enhanced group is more effective in the reducing bone marrow edema (BE) and improving structural remission in early destructive RA accompanied with extensive hand BM despite csDMARDs therapy (1).Objectives:Purpose of this extended study is to investigate whether suppression of RRP will maintain after the discontinuation/reduction of short term biological treatment during over 1 year. Clinical registration number; (UMIN-CTR 000013614)(Figure 1)Methods:RA disease activity was evaluated by DAS28-ESR after BIO withdrawal/reduction at 12 months. Bone destruction was determined by modified total Sharp scoring (mTSS) using by conventional radiography expressed as yearly progression of mTSS (ΔmTSS/y) at 12 months. Statistical analysis were performed by t-test or Wilcoxon rank sum test using SAS .13.2 softwareResults:Fourteen out of 23 patients in BIO group achieved improvement of BM (>70% improvement of baseline BE). Three patient continued BIO. Among 11 patient started to discontinuation/reduction of BIO, 7 patients were successful for discontinuation of BIO. Four patients flared (Table 1). Mean DAS28-ESR, mean ΔmTSS/y at 0, 12 months after discontinuation in 7 patients were 1.77, 2.02 and -0.66,-0.44, respectively (no significant difference between values in 0 and12 month). In contrast, those in 4 flared patients were 1.91, 4.08 and 0, 1.83, respectively (significant difference). Finally, to resolve baseline prognostic factors for improvement of BE for biological treatment, we compared baseline data between 14 BE improved and 9 BE unimproved RA patients. Low DAS28-ESR at 3 or 6 month (P<0.001) are indicated for significant prognostic factor for improvement of BE, although Low DAS28-ESR at baseline (P=0.07) may associate improvement of BE.Table 1.Summary of 1 year clinical data in 11 patients treated in BIO discontinuation/reduction after improvement of BE by short-term treatment of BIOConclusion:Results of this study indicated suppression of RRP will maintain during over 1 year after the discontinuation of short term biological treatment in some patients. We recommend that a short-term treatment with biologics for early RA patients, who are resistant to non-bio DMARDs therapy and at high risk to transit to RRP, will be an effective and economical treatment strategy.References:[1]K. Katayama, T. Okubo, S. Sato et al. Prevention of extensive bone marrow edema and consequent rapid radiographic progression by short term usage of biologics in DMARDs resistant patients with early destructive rheumatoid arthritis. EULAR meeting. FRI 0124(2018).Disclosure of Interests:None declared
Collapse
|
24
|
Katayama K, Ishikawa D, Miyagi Y, Takemiya S, Okamoto N, Ogawa A. Qualitative analysis of cancer telephone consultations: Differences in the counseling needs of Japanese men and women. Patient Educ Couns 2020; 103:S0738-3991(20)30278-0. [PMID: 32473840 DOI: 10.1016/j.pec.2020.05.012] [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] [Subscribe] [Scholar Register] [Received: 07/13/2019] [Revised: 05/08/2020] [Accepted: 05/11/2020] [Indexed: 06/11/2023]
Abstract
OBJECTIVE To analyze large-scale data obtained from telephone cancer consultations and clarify sex differences in the information sought by callers to guide future cancer survivor support. METHODS We qualitatively analyzed 10,534 cases of telephone consultations with cancer patients. The relationships between callers' words and sex were visualized through a correspondence analysis, and the keywords extracted were visualized with a dependency relationship to the words "worry" and "anxiety," which had a high prevalence in the text data. RESULTS Most of the male callers sought consultation about stomach cancer (11.8%), the consultations were predominantly about "suspicion of having cancer" (25.2%), and males indicated that the goal was to gather accurate information. Female callers mostly sought consultation about breast cancer (18.4%) were mainly interested in learning about "treatment" (31.0%), and mostly used the keywords "worry" and "anxiety." The total number of callers without a definitive diagnosis accounted for 20% of all consultations. CONCLUSIONS Healthcare providers need to understand unique sex-based coping styles and perform regular follow-ups. There is also a need for online platforms that provide information from the patient's perspective. PRACTICAL IMPLICATIONS Providing a cancer consultation support system and easy-to-understand medical information will improve communication between survivors, their families, and medical staff.
Collapse
Affiliation(s)
- Kayoko Katayama
- Cancer Survivorship Support Research Unit, Kanagawa Cancer Center Research Institute, 2-3-2, Nakao, Asahi-ku, Yokohama, 241-8515, Japan.
| | | | - Yohei Miyagi
- Cancer Survivorship Support Research Unit, Kanagawa Cancer Center Research Institute, 2-3-2, Nakao, Asahi-ku, Yokohama, 241-8515, Japan
| | - Shoji Takemiya
- Cancer Survivorship Support Research Unit, Kanagawa Cancer Center Research Institute, 2-3-2, Nakao, Asahi-ku, Yokohama, 241-8515, Japan
| | - Naoyuki Okamoto
- Cancer Survivorship Support Research Unit, Kanagawa Cancer Center Research Institute, 2-3-2, Nakao, Asahi-ku, Yokohama, 241-8515, Japan
| | - Asao Ogawa
- Department of Psycho-Oncology, National Cancer Center Hospital East, Japan
| |
Collapse
|
25
|
Watanabe K, Katayama K, Yoshioka T, Narimatsu H. Impact of individual background on the unmet needs of cancer survivors and caregivers - a mixed-methods analysis. BMC Cancer 2020; 20:263. [PMID: 32228490 PMCID: PMC7106842 DOI: 10.1186/s12885-020-06732-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2019] [Accepted: 03/10/2020] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND Cancer survivors and their caregivers may have various unmet needs that are medically difficult to solve. Previous studies have suggested the relations between individuals' backgrounds and their unmet needs. We conducted a large-scale analysis to clarify the influence of individuals' backgrounds, primarily cancer type, on specific types of unmet needs. METHODS Using a mixed-methods approach, we analyzed records of first-time callers to a cancer-focused telephone consultation service that was provided by the Kanagawa Cancer Clinical Research Information Organization from October 2006 to May 2014. The qualitative approach concerned extracting unmet needs mentioned in each consultation and classifying them into themes of specific needs, while the quantitative approach comprised multi-variated analysis of the relationships between the frequency by which the needs in each theme arose and the associated callers' backgrounds. RESULTS A total of 1938 consultation cases were analyzed. In the qualitative analysis, the needs were classified into 16 themes. The mean number of unmet needs for each caller was 1.58 (standard deviation = 0.86). In the multi-variated analysis, caregivers for colorectal cancer survivors had a lower frequency of "emotional/mental health" needs (OR: 0.31, 95%CI: 0.11-0.88, p = 0.028) than did caregivers for breast-cancer survivors. Nevertheless, this was the only significant difference in needs frequency among callers (including survivors and their caregivers) with specific cancer types. Meanwhile, there significant difference in the frequency of occurrence of each unmet need theme was found among items concerning other background elements. Among survivors, sex was related to the frequency of needs among "physical" and "resources" themes, and "emotions/mental health"; their age group with "employment"; treatment course with "physical" and "resources" themes and "cure"; residence with "physical" themes; presence of symptom with "physical," "education/information," "resources," "emotions/mental health," and "cure" themes. CONCLUSIONS This large-scale study suggests that cancer type is not a significant factor for specific unmet needs and that individuals' backgrounds and presence of symptoms play a more important role. Through this study, it was found that instruments to predict people's needs and a system to provide individualized cancer care across cancer types should be developed in the future.
Collapse
Affiliation(s)
- Kaname Watanabe
- Department of Clinical Oncology, Yamagata University, Faculty of Medicine, Yamagata, Japan.,Cancer Prevention and Cancer Control Division, Kanagawa Cancer Center, Research Institute, 2-3-2 Nakao, Asahi-ku, Yokohama, Kanagawa, 241-8515, Japan
| | - Kayoko Katayama
- Cancer Prevention and Cancer Control Division, Kanagawa Cancer Center, Research Institute, 2-3-2 Nakao, Asahi-ku, Yokohama, Kanagawa, 241-8515, Japan
| | - Takashi Yoshioka
- Department of Clinical Oncology, Yamagata University, Faculty of Medicine, Yamagata, Japan
| | - Hiroto Narimatsu
- Cancer Prevention and Cancer Control Division, Kanagawa Cancer Center, Research Institute, 2-3-2 Nakao, Asahi-ku, Yokohama, Kanagawa, 241-8515, Japan. .,Graduate School of Health of Innovation, Kanagawa University of Human Services, Kawasaki, Kanagawa, Japan.
| |
Collapse
|
26
|
Yako-Suketomo H, Katanoda K, Kawamura Y, Katayama K, Yuasa M, Horinouchi H, Saito K. Children's Knowledge of Cancer Prevention and Perceptions of Cancer Patients: Comparison Before and After Cancer Education with the Presence of Visiting Lecturer -Guided Class. J Cancer Educ 2019; 34:1059-1066. [PMID: 30069808 DOI: 10.1007/s13187-018-1408-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
The purpose of this study was to investigate the effect of the presence of visiting lecturer-guided class on children's knowledge of cancer prevention and perceptions of cancer patients, conducting surveys before and after the cancer education classes at local elementary schools that are pioneering cancer education. We implemented self-administered questionnaire surveys with 571 sixth-grade children at nine elementary schools receiving cancer education in the Tokyo metropolitan area from September 2013 to February 2014. The surveys were conducted twice in each classroom: 1 week before the cancer education class and 1 week after. The questionnaire items included participants' gender, cancer prevention information, and perceptions of cancer patients with the following description: "looks pitiful," "always depressed," "bedridden and hospitalized," "excessive smoking and drinking," "looks thin and pale," "no visible change despite cancer," and "always bright and cheerful." Children who had not attended the cancer education day, or had not completed both the pre- and post-test, were excluded from the analysis. Regardless of whether there visiting lecturer-guided class was provided, the possibility of improving children's knowledge of cancer prevention was demonstrated. On the other hand, in the post-class surveys, compared to the group with visiting lecturer-guided class, the group without it had a significantly lower percentage of persons selecting "Looks pitiful" (76.2%/63.5%, p = 0.002) and significantly higher percentages for "Too much smoking and drinking," and "Looks thin and pale" (50.2%/63.5%, p = 0.002; 18.8%/31.1%, p = 0.001). Therefore, study is needed into cancer education coordinated with relevant institutions in order to more effectively utilize visiting lecturers and the like.
Collapse
Affiliation(s)
- Hiroko Yako-Suketomo
- Japan Women's College of Physical Education, 8-19-1 Kitakarasuyama, Setagaya, Tokyo, 157-8565, Japan.
| | | | - Yoko Kawamura
- Shizuoka University of Art and Culture, Hamamatsu, Shizuoka, Japan
| | - Kayoko Katayama
- Kanagawa Cancer Center Research Institute, Yokohama, Kanagawa, Japan
| | | | | | | |
Collapse
|
27
|
Hirono Y, Katayama K, Naruse T, Goi T. MON-PO534: Clinical Impact of Preoperative Serum Cholinesterase in Gastric Cancer. Clin Nutr 2019. [DOI: 10.1016/s0261-5614(19)32367-2] [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]
|
28
|
Nishimura T, Sakai H, Mori H, Akiba K, Usui H, Ochi M, Kuroki K, Miyake A, Tokunaga M, Uwatoko Y, Katayama K, Murakawa H, Hanasaki N. Large Enhancement of Thermoelectric Efficiency Due to a Pressure-Induced Lifshitz Transition in SnSe. Phys Rev Lett 2019; 122:226601. [PMID: 31283289 DOI: 10.1103/physrevlett.122.226601] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2019] [Revised: 04/18/2019] [Indexed: 06/09/2023]
Abstract
The Lifshitz transition, a change in Fermi surface topology, is likely to greatly influence exotic correlated phenomena in solids, such as high-temperature superconductivity and complex magnetism. However, since the observation of Fermi surfaces is generally difficult in the strongly correlated systems, a direct link between the Lifshitz transition and quantum phenomena has been elusive so far. Here, we report a marked impact of the pressure-induced Lifshitz transition on thermoelectric performance for SnSe, a promising thermoelectric material without a strong electron correlation. By applying pressure up to 1.6 GPa, we have observed a large enhancement of the thermoelectric power factor by more than 100% over a wide temperature range (10-300 K). Furthermore, the high carrier mobility enables the detection of quantum oscillations of resistivity, revealing the emergence of new Fermi pockets at ∼0.86 GPa. The observed thermoelectric properties linked to the multivalley band structure are quantitatively reproduced by first-principles calculations, providing novel insight into designing the SnSe-related materials for potential valleytronic as well as thermoelectric applications.
Collapse
Affiliation(s)
- T Nishimura
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - H Sakai
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
- PRESTO, Japan Science and Technology Agency, Kawaguchi, Saitama 332-0012, Japan
| | - H Mori
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - K Akiba
- The Institute for Solid State Physics, University of Tokyo, Kashiwa 277-8581, Japan
| | - H Usui
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - M Ochi
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - K Kuroki
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - A Miyake
- The Institute for Solid State Physics, University of Tokyo, Kashiwa 277-8581, Japan
| | - M Tokunaga
- The Institute for Solid State Physics, University of Tokyo, Kashiwa 277-8581, Japan
| | - Y Uwatoko
- The Institute for Solid State Physics, University of Tokyo, Kashiwa 277-8581, Japan
| | - K Katayama
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - H Murakawa
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - N Hanasaki
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| |
Collapse
|
29
|
Hiwatari R, Katayama K, Nakamura M, Miyoshi Y, Aoki A, Asakura N, Utoh H, Homma Y, Tokunaga S, Nakajima N, Someya Y, Sakamoto Y, Tobita K. Development of plant concept related to tritium handling in the water-cooling system for JA DEMO. Fusion Engineering and Design 2019. [DOI: 10.1016/j.fusengdes.2019.03.174] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
|
30
|
Izumino J, Katayama K, Matsuura H, Fukada S. Study on hydrogen absorption in Zr powder used for tritium confinement in a production system of tritium for fusion reactors with a high-temperature gas-cooled reactor. Nuclear Materials and Energy 2018. [DOI: 10.1016/j.nme.2018.10.012] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
31
|
Ihara F, Sakurai D, Yonekura S, Iinuma T, Yagi R, Sakurai T, Ito T, Matsuura A, Morimoto Y, Arai T, Suzuki S, Katayama K, Nakayama T, Okamoto Y. Identification of specifically reduced Th2 cell subsets in allergic rhinitis patients after sublingual immunotherapy. Allergy 2018. [PMID: 29517806 DOI: 10.1111/all.13436] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
BACKGROUND Although Th2 cells are well known to play important roles in allergic diseases including allergic rhinitis (AR), the factors that induce and sustain the pathogenesis of AR remain unclear. The recent development of sublingual immunotherapy (SLIT) is expected to allow changes to the underlying pathogenesis of AR. However, which Th2 cell subsets are important in house dust mite-induced AR (HDM-AR), the influence of SLIT on the pathogenic Th2 cells, and the association of Th2 cell subsets with SLIT efficacy have not been clarified. METHODS The cytokine production and frequency of HDM-reactive T-cell subsets in peripheral blood mononuclear cells (PBMCs) were evaluated using flow cytometry in 89 HDM-AR patients (placebo [n = 43] and HDM 300 IR [n = 46]) who participated in a placebo-controlled study of SLIT with HDM tablets. All patients provided samples both before treatment as a baseline and at the end of the 52-week study. The PBMCs were stained with CellTrace™ Violet (CTV) before culture with HDM extract, and HDM-reactive T cells were detected as the proliferated cells with diminished CTV. RESULTS HDM-reactive IL-5+ IL-13+ CD27- CD161+ CD4+ cells and ST2+ CD45RO+ CD4+ cells were observed in the peripheral blood from each patient with HDM-AR; these cells significantly decreased after SLIT in the group treated with active tablets. HDM-reactive ST2+ CD45RO+ CD4+ cells were significantly lower in active-responders. CONCLUSION Allergen-reactive ST2+ CD45RO+ CD4+ cells or those combined with IL-5+ IL-13+ CD27- CD161+ CD4+ cells may be useful as markers indicating the successful treatment of SLIT. These cells may play a crucial role in the pathogenesis of AR as pathogenic memory Th2 cells.
Collapse
Affiliation(s)
- F. Ihara
- Department of Otorhinolaryngology, Head and Neck Surgery; Graduate School of Medicine; Chiba University; Chiba Japan
- Department of Medical Immunology; Graduate School of Medicine; Chiba University; Chiba Japan
| | - D. Sakurai
- Department of Otorhinolaryngology, Head and Neck Surgery; Graduate School of Medicine; Chiba University; Chiba Japan
| | - S. Yonekura
- Department of Otorhinolaryngology, Head and Neck Surgery; Graduate School of Medicine; Chiba University; Chiba Japan
| | - T. Iinuma
- Department of Otorhinolaryngology, Head and Neck Surgery; Graduate School of Medicine; Chiba University; Chiba Japan
| | - R. Yagi
- Department of Immunology; Graduate School of Medicine; Chiba University; Chiba Japan
| | - T. Sakurai
- Department of Otorhinolaryngology, Head and Neck Surgery; Graduate School of Medicine; Chiba University; Chiba Japan
| | - T. Ito
- Department of Immunology; Graduate School of Medicine; Chiba University; Chiba Japan
| | - A. Matsuura
- Department of Otorhinolaryngology, Head and Neck Surgery; Graduate School of Medicine; Chiba University; Chiba Japan
| | - Y. Morimoto
- Department of Otorhinolaryngology, Head and Neck Surgery; Graduate School of Medicine; Chiba University; Chiba Japan
| | - T. Arai
- Department of Otorhinolaryngology, Head and Neck Surgery; Graduate School of Medicine; Chiba University; Chiba Japan
| | - S. Suzuki
- Department of Otorhinolaryngology, Head and Neck Surgery; Graduate School of Medicine; Chiba University; Chiba Japan
| | - K. Katayama
- Drug Discovery & Disease Research Laboratory; Shionogi & Co., Ltd.; Osaka Japan
| | - T. Nakayama
- Department of Immunology; Graduate School of Medicine; Chiba University; Chiba Japan
| | - Y. Okamoto
- Department of Otorhinolaryngology, Head and Neck Surgery; Graduate School of Medicine; Chiba University; Chiba Japan
| |
Collapse
|
32
|
Katayama K, Higuchi A, Yamamoto H, Ikeda A, Kikuchi S, Shiozawa M. Perioperative dynamics and significance of plasma-free amino acid profiles in colorectal cancer. BMC Surg 2018; 18:11. [PMID: 29466971 PMCID: PMC5822659 DOI: 10.1186/s12893-018-0344-0] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2017] [Accepted: 02/12/2018] [Indexed: 01/02/2023] Open
Abstract
Background For early detection of cancer, we have previously developed the AminoIndex Cancer Screening (AICS) system, which quantifies 6 plasma-free amino acids (PFAAs) in blood samples. Herein, we examined the usefulness of the AICS in patients with colorectal cancer (CRC) by comparing the preoperative and postoperative PFAA profiles. Methods Our study cohort consisted of 62 patients who had undergone curative resection for CRC at our cancer center, with no recurrence at the time of the study. Blood samples were collected from fasted patients within 1 week before the resection and at 0.5–6.5 years post-resection. Following plasmapheresis, the PFAA levels were measured via liquid chromatography/mass spectrometry, and the AICS values were computed (the higher the value, the greater the probability of cancer). Risk was calculated from the AICS value and ranked as A, B, or C, with rank C representing the highest risk. All patients in our study were rank B + C. Results The postoperative AICS value was lower than the preoperative value in 57 of the 62 patients; the rank was also lower postoperatively (49 patients, p < 0.001). The decline in both was stage-independent, even occurring in patients with right-sided tumors or poorly differentiated adenocarcinomas. For comparative purposes, the levels of 2 tumor markers (carbohydrate antigen 19–9 and carcinoembryonic antigen) were also examined; these were within the reference ranges in 70–80% of patients preoperatively and in 80–90% postoperatively. Conclusion We suggest that tumor-bearing conditions alter the PFAA profiles, which may be used to predict prognosis and monitor for recurrence in CRC patients after tumor resection. Trial registration This trial has been retrospectively registered at UMIN-CTR R000028005, Oct 06, 2016. Electronic supplementary material The online version of this article (10.1186/s12893-018-0344-0) contains supplementary material, which is available to authorized users.
Collapse
Affiliation(s)
- Kayoko Katayama
- Cancer Prevention and Control Division, Kanagawa Cancer Center Research Institute, 2-3-2, Nakao, Yokohama City, Asahi-ku, 241-8515, Japan.
| | - Akio Higuchi
- Department of Gastrointestinal Surgery, Kanagawa Cancer Center, Yokohama, Japan
| | - Hiroshi Yamamoto
- Research Institute for Bioscience Products & Fine Chemicals, Ajinomoto Co., Inc., Kanagawa, Japan
| | - Atsuko Ikeda
- Research Institute for Bioscience Products & Fine Chemicals, Ajinomoto Co., Inc., Kanagawa, Japan
| | - Shinya Kikuchi
- Research Institute for Bioscience Products & Fine Chemicals, Ajinomoto Co., Inc., Kanagawa, Japan
| | - Manabu Shiozawa
- Department of Gastrointestinal Surgery, Kanagawa Cancer Center, Yokohama, Japan
| |
Collapse
|
33
|
Matz M, Coleman MP, Sant M, Chirlaque MD, Visser O, Gore M, Allemani C, Bouzbid S, Hamdi-Chérif M, Zaidi Z, Bah E, Swaminathan R, Nortje S, El Mistiri M, Bayo S, Malle B, Manraj S, Sewpaul-Sungkur R, Fabowale A, Ogunbiyi O, Bradshaw D, Somdyala N, Stefan D, Abdel-Rahman M, Jaidane L, Mokni M, Kumcher I, Moreno F, González M, Laura E, Espinola S, Calabrano G, Carballo Quintero B, Fita R, Garcilazo D, Giacciani P, Diumenjo M, Laspada W, Green M, Lanza M, Ibañez S, Lima C, Lobo de Oliveira E, Daniel C, Scandiuzzi C, De Souza P, Melo C, Del Pino K, Laporte C, Curado M, de Oliveira J, Veneziano C, Veneziano D, Latorre M, Tanaka L, Azevedo e Silva G, Galaz J, Moya J, Herrmann D, Vargas S, Herrera V, Uribe C, Bravo L, Arias-Ortiz N, Jurado D, Yépez M, Galán Y, Torres P, Martínez-Reyes F, Pérez-Meza M, Jaramillo L, Quinto R, Cueva P, Yépez J, Torres-Cintrón C, Tortolero-Luna G, Alonso R, Barrios E, Nikiforuk C, Shack L, Coldman A, Woods R, Noonan G, Turner D, Kumar E, Zhang B, McCrate F, Ryan S, Hannah H, Dewar R, MacIntyre M, Lalany A, Ruta M, Marrett L, Nishri D, McClure C, Vriends K, Bertrand C, Louchini R, Robb K, Stuart-Panko H, Demers S, Wright S, George J, Shen X, Brockhouse J, O'Brien D, Ward K, Almon L, Bates J, Rycroft R, Mueller L, Phillips C, Brown H, Cromartie B, Schwartz A, Vigneau F, MacKinnon J, Wohler B, Bayakly A, Clarke C, Glaser S, West D, Green M, Hernandez B, Johnson C, Jozwik D, Charlton M, Lynch C, Huang B, Tucker T, Deapen D, Liu L, Hsieh M, Wu X, Stern K, Gershman S, Knowlton R, Alverson J, Copeland G, Rogers D, Lemons D, Williamson L, Hood M, Hosain G, Rees J, Pawlish K, Stroup A, Key C, Wiggins C, Kahn A, Schymura M, Leung G, Rao C, Giljahn L, Warther B, Pate A, Patil M, Schubert S, Rubertone J, Slack S, Fulton J, Rousseau D, Janes T, Schwartz S, Bolick S, Hurley D, Richards J, Whiteside M, Nogueira L, Herget K, Sweeney C, Martin J, Wang S, Harrelson D, Keitheri Cheteri M, Farley S, Hudson A, Borchers R, Stephenson L, Espinoza J, Weir H, Edwards B, Wang N, Yang L, Chen J, Song G, Gu X, Zhang P, Ge H, Zhao D, Zhang J, Zhu F, Tang J, Shen Y, Wang J, Li Q, Yang X, Dong J, Li W, Cheng L, Chen J, Huang Q, Huang S, Guo G, Wei K, Chen W, Zeng H, Demetriou A, Pavlou P, Mang W, Ngan K, Swaminathan R, Kataki A, Krishnatreya M, Jayalekshmi P, Sebastian P, Sapkota S, Verma Y, Nandakumar A, Suzanna E, Keinan-Boker L, Silverman B, Ito H, Nakagawa H, Hattori M, Kaizaki Y, Sugiyama H, Utada M, Katayama K, Narimatsu H, Kanemura S, Koike T, Miyashiro I, Yoshii M, Oki I, Shibata A, Matsuda T, Nimri O, Ab Manan A, Bhoo-Pathy N, Tuvshingerel S, Chimedsuren O, Al Khater A, El Mistiri M, Al-Eid H, Jung K, Won Y, Chiang C, Lai M, Suwanrungruang K, Wiangnon S, Daoprasert K, Pongnikorn D, Geater S, Sriplung H, Eser S, Yakut C, Hackl M, Mühlböck H, Oberaigner W, Zborovskaya A, Aleinikova O, Henau K, Van Eycken L, Dimitrova N, Valerianova Z, Šekerija M, Zvolský M, Engholm G, Storm H, Innos K, Mägi M, Malila N, Seppä K, Jégu J, Velten M, Cornet E, Troussard X, Bouvier A, Faivre J, Guizard A, Bouvier V, Launoy G, Arveux P, Maynadié M, Mounier M, Fournier E, Woronoff A, Daoulas M, Clavel J, Le Guyader-Peyrou S, Monnereau A, Trétarre B, Colonna M, Cowppli-Bony A, Molinié F, Bara S, Degré D, Ganry O, Lapôtre-Ledoux B, Grosclaude P, Estève J, Bray F, Piñeros M, Sassi F, Stabenow R, Eberle A, Erb C, Nennecke A, Kieschke J, Sirri E, Kajueter H, Emrich K, Zeissig S, Holleczek B, Eisemann N, Katalinic A, Brenner H, Asquez R, Kumar V, Ólafsdóttir E, Tryggvadóttir L, Comber H, Walsh P, Sundseth H, Devigili E, Mazzoleni G, Giacomin A, Bella F, Castaing M, Sutera A, Gola G, Ferretti S, Serraino D, Zucchetto A, Lillini R, Vercelli M, Busco S, Pannozzo F, Vitarelli S, Ricci P, Pascucci C, Autelitano M, Cirilli C, Federico M, Fusco M, Vitale M, Usala M, Cusimano R, Mazzucco W, Michiara M, Sgargi P, Maule M, Sacerdote C, Tumino R, Di Felice E, Vicentini M, Falcini F, Cremone L, Budroni M, Cesaraccio R, Contrino M, Tisano F, Fanetti A, Maspero S, Candela G, Scuderi T, Gentilini M, Piffer S, Rosso S, Sacchetto L, Caldarella A, La Rosa F, Stracci F, Contiero P, Tagliabue G, Dei Tos A, Zorzi M, Zanetti R, Baili P, Berrino F, Gatta G, Sant M, Capocaccia R, De Angelis R, Liepina E, Maurina A, Smailyte G, Agius D, Calleja N, Siesling S, Visser O, Larønningen S, Møller B, Dyzmann-Sroka A, Trojanowski M, Góźdż S, Mężyk R, Grądalska-Lampart M, Radziszewska A, Didkowska J, Wojciechowska U, Błaszczyk J, Kępska K, Bielska-Lasota M, Kwiatkowska K, Forjaz G, Rego R, Bastos J, Silva M, Antunes L, Bento M, Mayer-da-Silva A, Miranda A, Coza D, Todescu A, Valkov M, Adamcik J, Safaei Diba C, Primic-Žakelj M, Žagar T, Stare J, Almar E, Mateos A, Quirós J, Bidaurrazaga J, Larrañaga N, Díaz García J, Marcos A, Marcos-Gragera R, Vilardell Gil M, Molina E, Sánchez M, Franch Sureda P, Ramos Montserrat M, Chirlaque M, Navarro C, Ardanaz E, Moreno-Iribas C, Fernández-Delgado R, Peris-Bonet R, Galceran J, Khan S, Lambe M, Camey B, Bouchardy C, Usel M, Ess S, Herrmann C, Bulliard J, Maspoli-Conconi M, Frick H, Kuehni C, Schindler M, Bordoni A, Spitale A, Chiolero A, Konzelmann I, Dehler S, Matthes K, Rashbass J, Stiller C, Fitzpatrick D, Gavin A, Bannon F, Black R, Brewster D, Huws D, White C, Finan P, Allemani C, Bonaventure A, Carreira H, Coleman M, Di Carlo V, Harewood R, Liu K, Matz M, Montel L, Nikšić M, Rachet B, Sanz N, Spika D, Stephens R, Peake M, Chalker E, Newman L, Baker D, Soeberg M, Aitken J, Scott C, Stokes B, Venn A, Farrugia H, Giles G, Threlfall T, Currow D, You H, Hendrix J, Lewis C. Erratum to “The histology of ovarian cancer: Worldwide distribution and implications for international survival comparisons (CONCORD-2)” [Gynecol. Oncol. 144 (2017) 405–413]. Gynecol Oncol 2017; 147:726. [DOI: 10.1016/j.ygyno.2017.06.032] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
|
34
|
Kato K, Ohkawa K, Takada R, Uehara H, Kukita Y, Katayama K. A liquid biopsy gene panel for pancreatic cancer detection. Ann Oncol 2017. [DOI: 10.1093/annonc/mdx653.007] [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: 11/12/2022] Open
|
35
|
Okada A, Choh S, Nakai T, Ohbayashi C, Kurono Y, Ueda M, Katayama K, Koguchi N, Murakami S, Takenaka H. P2.01-065 Clinico-Radiological and Pathological Evaluation of Lung Adenocarcinoma with Infiltration on the Computed Tomography of the Chest. J Thorac Oncol 2017. [DOI: 10.1016/j.jtho.2017.09.1167] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
36
|
Katayama K, Tamiya A, Tanaka Y, Nakahama K, Taniguchi Y, Saijo N, Naoki Y, Omachi N, Okishio K, Kasai T, Atagi S. Nab-paclitaxel in combination with carboplatin versus docetaxel in chemotherapy-naïve with advanced non-small-cell lung cancer aged 75 years old or more: Retrospective cohort study. Ann Oncol 2017. [DOI: 10.1093/annonc/mdx671.046] [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
|
37
|
Noguchi M, Katayama K, Torikai Y, Ashikawa N, Taguchi A, Fukada S. Measurement of tritium in tungsten deposition layer by imaging plate technique after exposure to gaseous tritium. Fusion Engineering and Design 2017. [DOI: 10.1016/j.fusengdes.2017.04.076] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
38
|
Nagasumi S, Matsuura H, Katayama K, Otsuka T, Goto M, Nakagawa S. Study on Tritium Production Using a High-Temperature Gas-Cooled Reactor for Fusion Reactors: Evaluation of Tritium Outflow by Non-Equilibrium Diffusion Simulations. Fusion Science and Technology 2017. [DOI: 10.1080/15361055.2017.1352424] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- S. Nagasumi
- Kyushu University, Department of Applied Quantum Physics and Nuclear Engineering, 744 Motooka, Fukuoka 819-0395, Japan
| | - H. Matsuura
- Kyushu University, Department of Applied Quantum Physics and Nuclear Engineering, 744 Motooka, Fukuoka 819-0395, Japan
| | - K. Katayama
- Kyushu University, Department of Advanced Energy Engineering Science, Kasuga, Japan
| | - T. Otsuka
- Kindai University, Department of Electrical and Electronic Engineering, Higashi Osaka, Japan
| | - M. Goto
- Japan Atomic Energy Agency, 4002 Oarai, Ibaraki 311-1393, Japan
| | - S. Nakagawa
- Japan Atomic Energy Agency, 4002 Oarai, Ibaraki 311-1393, Japan
| |
Collapse
|
39
|
Katayama K, Ashikawa N, Ding F, Mao H, Zhou H, Luo G, Wu J, Noguchi M, Fukada S. Deuterium retention in deposited W layer exposed to EAST deuterium plasma. Nuclear Materials and Energy 2017. [DOI: 10.1016/j.nme.2017.04.004] [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] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
|
40
|
Ito H, Nakayama H, Murakami S, Yokose T, Katayama K, Miyata Y, Okada M. Does the histologic predominance of pathological stage IA lung adenocarcinoma influence the extent of resection? Gen Thorac Cardiovasc Surg 2017; 65:512-518. [DOI: 10.1007/s11748-017-0790-0] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2017] [Accepted: 06/02/2017] [Indexed: 11/28/2022]
|
41
|
Kinjo M, Fukada S, Katayama K, Edao Y, Hayashi T. Experiment on Recovery of Hydrogen Isotopes from Li 17Pb 83 Blanket by Liquid-Gas Contact. Fusion Science and Technology 2017. [DOI: 10.1080/15361055.2017.1293426] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- M. Kinjo
- Kyushu University , Dept. Advanced Energy Engineering Science, Kasuga-Koen 6-1, Kasuga, Fukuoka 816-8580, Japan
| | - S. Fukada
- Kyushu University , Dept. Advanced Energy Engineering Science, Kasuga-Koen 6-1, Kasuga, Fukuoka 816-8580, Japan
| | - K. Katayama
- Kyushu University , Dept. Advanced Energy Engineering Science, Kasuga-Koen 6-1, Kasuga, Fukuoka 816-8580, Japan
| | - Y. Edao
- Quantum Science and Technology Development Agency , Tritium Process Laboratory, Ibaraki 319-1184, Japan
| | - T. Hayashi
- Quantum Science and Technology Development Agency , Tritium Process Laboratory, Ibaraki 319-1184, Japan
| |
Collapse
|
42
|
Yamasaki Y, Fukada S, Hiyane K, Katayama K. Study on Transfer Behavior of Hydrogen Isotopes from Fluidized Li to Y for Li Blanket. Fusion Science and Technology 2017. [DOI: 10.1080/15361055.2017.1291028] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Y. Yamasaki
- Kyushu University , Interdisciplinary Graduate School of Engineering Sciences, 6-1Kasuga-Koen, Kasuga, Fukuoka 816-8580, Japan
| | - S. Fukada
- Kyushu University , Interdisciplinary Graduate School of Engineering Sciences, 6-1Kasuga-Koen, Kasuga, Fukuoka 816-8580, Japan
| | - K. Hiyane
- Kyushu University , Interdisciplinary Graduate School of Engineering Sciences, 6-1Kasuga-Koen, Kasuga, Fukuoka 816-8580, Japan
| | - K. Katayama
- Kyushu University , Interdisciplinary Graduate School of Engineering Sciences, 6-1Kasuga-Koen, Kasuga, Fukuoka 816-8580, Japan
| |
Collapse
|
43
|
Fukada S, Edao Y, Sato K, Takeishi T, Katayama K, Kobayashi K, Hayashi T, Yamanishi T, Hatano Y, Taguchi A, Akamaru S. Tritium Transfer in Porous Concrete Materials Coated with Hydrophobic Paints. Fusion Science and Technology 2017. [DOI: 10.13182/fst11-a12599] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- S. Fukada
- Dept. Advanced Energy Engineering Science, Kyushu University, Fukuoka 812-8581, Japan
| | - Y. Edao
- Dept. Advanced Energy Engineering Science, Kyushu University, Fukuoka 812-8581, Japan
| | - K. Sato
- Dept. Advanced Energy Engineering Science, Kyushu University, Fukuoka 812-8581, Japan
| | - T. Takeishi
- Dept. Advanced Energy Engineering Science, Kyushu University, Fukuoka 812-8581, Japan
| | - K. Katayama
- Dept. Advanced Energy Engineering Science, Kyushu University, Fukuoka 812-8581, Japan
| | - K. Kobayashi
- Tritium Process Laboratory of Japan Atomic Energy Agency, Tokai, Ibaraki 319-1195, Japan
| | - T. Hayashi
- Tritium Process Laboratory of Japan Atomic Energy Agency, Tokai, Ibaraki 319-1195, Japan
| | - T. Yamanishi
- Tritium Process Laboratory of Japan Atomic Energy Agency, Tokai, Ibaraki 319-1195, Japan
| | - Y. Hatano
- Hydrogen Isotope Research Center, University of Toyama, Gofuku, Toyama 930-8555, Japan
| | - A. Taguchi
- Hydrogen Isotope Research Center, University of Toyama, Gofuku, Toyama 930-8555, Japan
| | - S. Akamaru
- Hydrogen Isotope Research Center, University of Toyama, Gofuku, Toyama 930-8555, Japan
| |
Collapse
|
44
|
Kawasaki T, Manabe Y, Katayama K, Takeishi T, Nishikawa M. Hydrogen Retention in a Tungsten Re-Deposition Layer Formed by Hydrogen RF Plasma. Fusion Science and Technology 2017. [DOI: 10.13182/fst05-a992] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- T. Kawasaki
- Department of Advanced Energy Engineering Science Interdisciplinary Graduate School of Engineering Sciences Kyusyu University, Hakozaki 6-10-1, Higashi-ku, Fukuoka 812-8581, Japan
| | - Y. Manabe
- Department of Advanced Energy Engineering Science Interdisciplinary Graduate School of Engineering Sciences Kyusyu University, Hakozaki 6-10-1, Higashi-ku, Fukuoka 812-8581, Japan
| | - K. Katayama
- Department of Advanced Energy Engineering Science Interdisciplinary Graduate School of Engineering Sciences Kyusyu University, Hakozaki 6-10-1, Higashi-ku, Fukuoka 812-8581, Japan
| | - T. Takeishi
- Department of Advanced Energy Engineering Science Interdisciplinary Graduate School of Engineering Sciences Kyusyu University, Hakozaki 6-10-1, Higashi-ku, Fukuoka 812-8581, Japan
| | - M. Nishikawa
- Department of Advanced Energy Engineering Science Interdisciplinary Graduate School of Engineering Sciences Kyusyu University, Hakozaki 6-10-1, Higashi-ku, Fukuoka 812-8581, Japan
| |
Collapse
|
45
|
Affiliation(s)
- S. Fukada
- Department of Advanced Energy Engineering Science, Kyushu University, Hakozaki, Higashi-ku, Fukuoka 812-8581, Japan
| | - K. Katayama
- Department of Advanced Energy Engineering Science, Kyushu University, Hakozaki, Higashi-ku, Fukuoka 812-8581, Japan
| | - T. Terai
- Department of Nuclear Engineering and Management, Tokyo University, Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - A. Sagara
- Fusion Engineering Research Center, National Institute for Fusion Science, Oroshi-cho, Toki, 509-5292, Japan
| |
Collapse
|
46
|
Kanazawa T, Nishikawa M, Yamasaki H, Katayama K, Kashimura H, Hanada T, Fukada S. Study on Tritium Release Behavior from Li 2ZrO 3. Fusion Science and Technology 2017. [DOI: 10.13182/fst11-a12623] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- T. Kanazawa
- Graduate School of Engineering Science, Kyushu University, Hakozaki 6-10-1 Higashi-ku, Fukuoka-city, FUKUOKA 812-8581 Japan
| | - M. Nishikawa
- Graduate School of Engineering Science, Kyushu University, Hakozaki 6-10-1 Higashi-ku, Fukuoka-city, FUKUOKA 812-8581 Japan
| | - H. Yamasaki
- Graduate School of Engineering Science, Kyushu University, Hakozaki 6-10-1 Higashi-ku, Fukuoka-city, FUKUOKA 812-8581 Japan
| | - K. Katayama
- Graduate School of Engineering Science, Kyushu University, Hakozaki 6-10-1 Higashi-ku, Fukuoka-city, FUKUOKA 812-8581 Japan
| | - H. Kashimura
- Graduate School of Engineering Science, Kyushu University, Hakozaki 6-10-1 Higashi-ku, Fukuoka-city, FUKUOKA 812-8581 Japan
| | - T. Hanada
- Graduate School of Engineering Science, Kyushu University, Hakozaki 6-10-1 Higashi-ku, Fukuoka-city, FUKUOKA 812-8581 Japan
| | - S. Fukada
- Graduate School of Engineering Science, Kyushu University, Hakozaki 6-10-1 Higashi-ku, Fukuoka-city, FUKUOKA 812-8581 Japan
| |
Collapse
|
47
|
Uchida Y, Katayama K, Okamura T, Imaoka R, Nishikawa M, Fukada S. Hydrogen Retention in Deposition Layers Formed from Type 316 Stainless Steel. Fusion Science and Technology 2017. [DOI: 10.13182/fst08-a1874] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Y. Uchida
- Graduate School of Engineering Science, Kyushu University, Hakozaki 6-10-1, Higashi-ku, Fukuoka 812-8581, Japan
| | - K. Katayama
- Graduate School of Engineering Science, Kyushu University, Hakozaki 6-10-1, Higashi-ku, Fukuoka 812-8581, Japan
| | - T. Okamura
- Graduate School of Engineering Science, Kyushu University, Hakozaki 6-10-1, Higashi-ku, Fukuoka 812-8581, Japan
| | - R. Imaoka
- Graduate School of Engineering Science, Kyushu University, Hakozaki 6-10-1, Higashi-ku, Fukuoka 812-8581, Japan
| | - M. Nishikawa
- Graduate School of Engineering Science, Kyushu University, Hakozaki 6-10-1, Higashi-ku, Fukuoka 812-8581, Japan
| | - S. Fukada
- Graduate School of Engineering Science, Kyushu University, Hakozaki 6-10-1, Higashi-ku, Fukuoka 812-8581, Japan
| |
Collapse
|
48
|
Takata H, Furuichi K, Nishikawa M, Fukada S, Katayama K, Takeishi T, Kobayashi K, Hayashi T, Namba H. Concentration Profiles of Tritium Penetrated into Concrete. Fusion Science and Technology 2017. [DOI: 10.13182/fst08-a1800] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- H. Takata
- Interdisciplinary Graduate School of Engineering Science, Kyushu University, Hakozaki 6-10-1, Higashi-ku, Fukuoka 812-8581, Japan
| | - K. Furuichi
- Interdisciplinary Graduate School of Engineering Science, Kyushu University, Hakozaki 6-10-1, Higashi-ku, Fukuoka 812-8581, Japan
| | - M. Nishikawa
- Interdisciplinary Graduate School of Engineering Science, Kyushu University, Hakozaki 6-10-1, Higashi-ku, Fukuoka 812-8581, Japan
| | - S. Fukada
- Interdisciplinary Graduate School of Engineering Science, Kyushu University, Hakozaki 6-10-1, Higashi-ku, Fukuoka 812-8581, Japan
| | - K. Katayama
- Interdisciplinary Graduate School of Engineering Science, Kyushu University, Hakozaki 6-10-1, Higashi-ku, Fukuoka 812-8581, Japan
| | - T. Takeishi
- Interdisciplinary Graduate School of Engineering Science, Kyushu University, Hakozaki 6-10-1, Higashi-ku, Fukuoka 812-8581, Japan
| | - K. Kobayashi
- Japan Atomic Energy Agency, Tokai-mura 319-11, Ibaraki 319-1195, Japan
| | - T. Hayashi
- Japan Atomic Energy Agency, Tokai-mura 319-11, Ibaraki 319-1195, Japan
| | - H. Namba
- Shimizu Corporation, No.2-3, Shibaura1-chome, Minato-ku, Tokyo 105-8007, Japan
| |
Collapse
|
49
|
Katayama K, Imaoka K, Tokitani M, Miyamoto M, Nishikawa M, Fukada S, Yoshida N. Deuterium and Helium Release and Microstructure of Tungsten Deposition Layers Formed by RF Plasma Sputtering. Fusion Science and Technology 2017. [DOI: 10.13182/fst08-a1875] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- K. Katayama
- Interdisciplinary Graduate School of Engineering Science, Kyushu University, 6-10-1, Hakozaki, Higashi-ku, Fukuoka 812-8581, Japan, E-mail:
| | - K. Imaoka
- Interdisciplinary Graduate School of Engineering Science, Kyushu University, 6-10-1, Hakozaki, Higashi-ku, Fukuoka 812-8581, Japan, E-mail:
| | - M. Tokitani
- National Institute for Fusion Science, 322-6, Oroshi-cho, Toki, Gifu 509-5292, Japan
| | - M. Miyamoto
- Department of Material Science, Shimane University, Matue, 1060, Nishikawatsu-cho, Shimane 690-8504, Japan
| | - M. Nishikawa
- Interdisciplinary Graduate School of Engineering Science, Kyushu University, 6-10-1, Hakozaki, Higashi-ku, Fukuoka 812-8581, Japan, E-mail:
| | - S. Fukada
- Interdisciplinary Graduate School of Engineering Science, Kyushu University, 6-10-1, Hakozaki, Higashi-ku, Fukuoka 812-8581, Japan, E-mail:
| | - N. Yoshida
- Research Institute for Applied Mechanics, Kyushu University, 6-1, Kasugakoen, Kasuga, Fukuoka 816-8580, Japan
| |
Collapse
|
50
|
Kasahara S, Katayama K, Fujiki T, Ishikawa S, Fukada S, Nishikawa M. A Study on Carbon and Hydrogen Co-Deposition Behavior in Methane-Hydrogen Mixed Plasma. Fusion Science and Technology 2017. [DOI: 10.13182/fst11-a12713] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- S. Kasahara
- Interdisciplinary Graduate School of Engineering Science, Kyushu University, Fukuoka, Japan Hakozaki 6-10-1, Higashi-ku, Fukuoka 812-8581 Japan
| | - K. Katayama
- Interdisciplinary Graduate School of Engineering Science, Kyushu University, Fukuoka, Japan Hakozaki 6-10-1, Higashi-ku, Fukuoka 812-8581 Japan
| | - T. Fujiki
- Interdisciplinary Graduate School of Engineering Science, Kyushu University, Fukuoka, Japan Hakozaki 6-10-1, Higashi-ku, Fukuoka 812-8581 Japan
| | - S. Ishikawa
- Interdisciplinary Graduate School of Engineering Science, Kyushu University, Fukuoka, Japan Hakozaki 6-10-1, Higashi-ku, Fukuoka 812-8581 Japan
| | - S. Fukada
- Interdisciplinary Graduate School of Engineering Science, Kyushu University, Fukuoka, Japan Hakozaki 6-10-1, Higashi-ku, Fukuoka 812-8581 Japan
| | - M. Nishikawa
- Interdisciplinary Graduate School of Engineering Science, Kyushu University, Fukuoka, Japan Hakozaki 6-10-1, Higashi-ku, Fukuoka 812-8581 Japan
| |
Collapse
|