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Fukasawa M, Umeda Taniguchi M, Akiyama T, Horikoshi N, Yasumura S, Yabe H, Suzuki Y, Bromet EJ, Kawakami N. Social networks and posttraumatic stress symptoms five to ten years after the Fukushima nuclear power plant disaster. Soc Sci Med 2024; 357:117189. [PMID: 39127002 DOI: 10.1016/j.socscimed.2024.117189] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2024] [Revised: 07/27/2024] [Accepted: 08/04/2024] [Indexed: 08/12/2024]
Abstract
Since the 2011 Fukushima nuclear power plant accident, multiple social network disruptions have been reported among the community in Fukushima, while posttraumatic stress symptoms among the residents have persisted. In this study, we aimed to explore the influence of time and social networks on the recovery of posttraumatic stress symptoms based on longitudinal data from community residents in Fukushima, following up five to ten years after the nuclear power plant accident. We conducted five questionnaire surveys quasi-annually, the targets of which were randomly sampled 4900 non-evacuee community residents. In this study, the data of 1809 respondents who participated in at least one survey were used (36.9% of the initial target). Setting posttraumatic stress symptoms as the outcome, we examined the interaction between time and social network size using a mixed model, adjusting for sociodemographic characteristics and disaster-related events. Their interaction was statistically significant, and the posttraumatic stress symptoms of those with small social networks persisted, while those with larger social networks recovered. Maintaining and promoting social networks may contribute to mental health recovery after a nuclear disaster.
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Affiliation(s)
- Maiko Fukasawa
- Health Promotion Center, Fukushima Medical University, 1 Hikariga-oka, Fukushima City, Fukushima, 960-1295, Japan.
| | - Maki Umeda Taniguchi
- Mental Health and Psychiatric Nursing, Tokyo Medical and Dental University, 1-5-45, Yushima, Bunkyo-ku, Tokyo, 113-8510, Japan.
| | - Tsuyoshi Akiyama
- Department of Quality Improvement, NTT Medical Center Tokyo, 5-9-22 Higashi-Gotanda, Shinagawa-ku, Tokyo, 141-8625, Japan.
| | - Naoko Horikoshi
- Radiation Medical Science Center for the Fukushima Health Management Survey, Fukushima Medical University, 1 Hikariga-oka, Fukushima City, Fukushima, 960-1295, Japan.
| | - Seiji Yasumura
- Department of Public Health, Fukushima Medical University School of Medicine, 1 Hikariga-oka, Fukushima City, Fukushima, 960-1295, Japan.
| | - Hirooki Yabe
- Department of Mind and Brain Medicine, Fukushima Medical University School of Medicine, Japan.
| | - Yuriko Suzuki
- Department of Public Mental Health Research, National Institute of Mental Health, National Center of Neurology and Psychiatry, 4-1-1 Ogawa-Higashi, Kodaira, Tokyo, 187-8551, Japan.
| | - Evelyn J Bromet
- Department of Psychiatry and Behavioural Health, Stony Brook University, 100 Nicolls Road, Stony Brook, NY, 11794, USA.
| | - Norito Kawakami
- Department of Digital Mental Health, Graduate School of Medicine, the University of Tokyo, 7-3-1 Hongo Bunkyo-ku, Tokyo, 113-0033, Japan.
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2
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Thariat J, Little MP, Zablotska LB, Samson P, O’Banion MK, Leuraud K, Bergom C, Girault G, Azimzadeh O, Bouffler S, Hamada N. Radiotherapy for non-cancer diseases: benefits and long-term risks. Int J Radiat Biol 2024; 100:505-526. [PMID: 38180039 PMCID: PMC11039429 DOI: 10.1080/09553002.2023.2295966] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Accepted: 11/29/2023] [Indexed: 01/06/2024]
Abstract
PURPOSE The discovery of X-rays was followed by a variety of attempts to treat infectious diseases and various other non-cancer diseases with ionizing radiation, in addition to cancer. There has been a recent resurgence of interest in the use of such radiotherapy for non-cancer diseases. Non-cancer diseases for which use of radiotherapy has currently been proposed include refractory ventricular tachycardia, neurodegenerative diseases (e.g. Alzheimer's disease and dementia), and Coronavirus Disease 2019 (COVID-19) pneumonia, all with ongoing clinical studies that deliver radiation doses of 0.5-25 Gy in a single fraction or in multiple daily fractions. In addition to such non-cancer effects, historical indications predominantly used in some countries (e.g. Germany) include osteoarthritis and degenerative diseases of the bones and joints. This narrative review gives an overview of the biological rationale and ongoing preclinical and clinical studies for radiotherapy proposed for various non-cancer diseases, discusses the plausibility of the proposed biological rationale, and considers the long-term radiation risks of cancer and non-cancer diseases. CONCLUSIONS A growing body of evidence has suggested that radiation represents a double-edged sword, not only for cancer, but also for non-cancer diseases. At present, clinical evidence has shown some beneficial effects of radiotherapy for ventricular tachycardia, but there is little or no such evidence of radiotherapy for other newly proposed non-cancer diseases (e.g. Alzheimer's disease, COVID-19 pneumonia). Patients with ventricular tachycardia and COVID-19 pneumonia have thus far been treated with radiotherapy when they are an urgent life threat with no efficient alternative treatment, but some survivors may encounter a paradoxical situation where patients were rescued by radiotherapy but then get harmed by radiotherapy. Further studies are needed to justify the clinical use of radiotherapy for non-cancer diseases, and optimize dose to diseased tissue while minimizing dose to healthy tissue.
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Affiliation(s)
- Juliette Thariat
- Department of Radiation Oncology, Comprehensive Cancer Centre François Baclesse, Caen, France
- Laboratoire de Physique Corpusculaire IN2P3, ENSICAEN/CNRS UMR 6534, Normandie Université, Caen, France
| | - Mark P. Little
- Radiation Epidemiology Branch, National Cancer Institute, Bethesda, Maryland, USA
| | - Lydia B. Zablotska
- Department of Epidemiology and Biostatistics, School of Medicine, University of California, San Francisco (UCSF), San Francisco, California, USA
| | - Pamela Samson
- Department of Radiation Oncology, Alvin J. Siteman Cancer Center, Washington University School of Medicine, St. Louis, Missouri, USA
| | - M. Kerry O’Banion
- Department of Neuroscience, Del Monte Institute for Neuroscience, University of Rochester School of Medicine and Dentistry, Rochester, New York, USA
| | - Klervi Leuraud
- Research Department on Biological and Health Effects of Ionizing Radiation (SESANE), Institute for Radiological Protection and Nuclear Safety (IRSN), Fontenay-aux-Roses, France
| | - Carmen Bergom
- Department of Radiation Oncology, Alvin J. Siteman Cancer Center, Washington University School of Medicine, St. Louis, Missouri, USA
- Cardio-Oncology Center of Excellence, Washington University, St. Louis, Missouri, USA
| | - Gilles Girault
- Comprehensive Cancer Centre François Baclesse, Medical Library, Caen, France
| | - Omid Azimzadeh
- Federal Office for Radiation Protection (BfS), Section Radiation Biology, Neuherberg, Germany
| | - Simon Bouffler
- Radiation Protection Sciences Division, UK Health Security Agency (UKHSA), Chilton, Didcot, UK
| | - Nobuyuki Hamada
- Biology and Environmental Chemistry Division, Sustainable System Research Laboratory, Central Research Institute of Electric Power Industry (CRIEPI), Abiko, Chiba, Japan
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Wang S, Ma B, Feng D, Chen S, Ma Y, Li H, Lv C, Zheng W, Yang J. Microstructure, Mechanical Properties and Fatigue Crack Growth Behavior of Gas Tungsten Arc Welding Welded Joint of the Hastelloy N Alloy. MATERIALS (BASEL, SWITZERLAND) 2023; 16:6510. [PMID: 37834648 PMCID: PMC10573582 DOI: 10.3390/ma16196510] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Revised: 09/21/2023] [Accepted: 09/28/2023] [Indexed: 10/15/2023]
Abstract
Hastelloy N alloy is an excellent oxidation and corrosion-resistant material, which is selected as the shell material for the main vessel of molten salt reactors (MSRs). In this work, we conducted double-sided gas tungsten arc welding (GTAW) on 4 mm thick Hastelloy N alloy plates to examine the microstructure and mechanical properties of the welded joints. The S-N curve was obtained by fatigue test. The experimental results show that fatigue cracks initiate along the weld toe and propagate inward in a fan-shaped pattern. The hardness is highest in the heat-affected zone (HAZ). The fracture mode observed was trans-granular. The plastic zone in the initial stages of crack propagation remained relatively minimal. However, it gradually expanded during subsequent stages of the process. It is noteworthy that the crack propagation process often involves the development of secondary cracks, accompanied by profound plasticity-induced closure effects. The results of our investigation demonstrate that the welded joint exhibits excellent fatigue performance.
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Affiliation(s)
- Sai Wang
- College of Mechanical Engineering, Zhejiang University of Technology, Hangzhou 310014, China; (S.W.); (B.M.); (D.F.); (Y.M.); (H.L.); (C.L.)
- Institute of Process Equipment and Control Engineering, Zhejiang University of Technology, Hangzhou 310014, China
| | - Baoyun Ma
- College of Mechanical Engineering, Zhejiang University of Technology, Hangzhou 310014, China; (S.W.); (B.M.); (D.F.); (Y.M.); (H.L.); (C.L.)
- Institute of Process Equipment and Control Engineering, Zhejiang University of Technology, Hangzhou 310014, China
| | - Daochen Feng
- College of Mechanical Engineering, Zhejiang University of Technology, Hangzhou 310014, China; (S.W.); (B.M.); (D.F.); (Y.M.); (H.L.); (C.L.)
- Institute of Process Equipment and Control Engineering, Zhejiang University of Technology, Hangzhou 310014, China
| | - Shuangjian Chen
- Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China;
| | - Yinghe Ma
- College of Mechanical Engineering, Zhejiang University of Technology, Hangzhou 310014, China; (S.W.); (B.M.); (D.F.); (Y.M.); (H.L.); (C.L.)
- Institute of Process Equipment and Control Engineering, Zhejiang University of Technology, Hangzhou 310014, China
- Institute of Innovation Research, Shengzhou Zhejiang University of Technology, Shengzhou 312400, China
| | - Huaxin Li
- College of Mechanical Engineering, Zhejiang University of Technology, Hangzhou 310014, China; (S.W.); (B.M.); (D.F.); (Y.M.); (H.L.); (C.L.)
- Institute of Process Equipment and Control Engineering, Zhejiang University of Technology, Hangzhou 310014, China
- Institute of Innovation Research, Shengzhou Zhejiang University of Technology, Shengzhou 312400, China
| | - Chuanyang Lv
- College of Mechanical Engineering, Zhejiang University of Technology, Hangzhou 310014, China; (S.W.); (B.M.); (D.F.); (Y.M.); (H.L.); (C.L.)
- Institute of Process Equipment and Control Engineering, Zhejiang University of Technology, Hangzhou 310014, China
- Institute of Innovation Research, Shengzhou Zhejiang University of Technology, Shengzhou 312400, China
| | - Wenjian Zheng
- College of Mechanical Engineering, Zhejiang University of Technology, Hangzhou 310014, China; (S.W.); (B.M.); (D.F.); (Y.M.); (H.L.); (C.L.)
- Institute of Process Equipment and Control Engineering, Zhejiang University of Technology, Hangzhou 310014, China
- Institute of Innovation Research, Shengzhou Zhejiang University of Technology, Shengzhou 312400, China
| | - Jianguo Yang
- College of Mechanical Engineering, Zhejiang University of Technology, Hangzhou 310014, China; (S.W.); (B.M.); (D.F.); (Y.M.); (H.L.); (C.L.)
- Institute of Process Equipment and Control Engineering, Zhejiang University of Technology, Hangzhou 310014, China
- Institute of Innovation Research, Shengzhou Zhejiang University of Technology, Shengzhou 312400, China
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Fukasawa M, Nishi D, Umeda M, Akiyama T, Horikoshi N, Yasumura S, Yabe H, Suzuki Y, Bromet EJ, Kawakami N. Effects of disaster-related traumatic events on worry about radiation and COVID-19: A decade after the Fukushima nuclear power plant accident. J Psychiatr Res 2023; 163:135-141. [PMID: 37210831 DOI: 10.1016/j.jpsychires.2023.05.054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Revised: 05/01/2023] [Accepted: 05/15/2023] [Indexed: 05/23/2023]
Abstract
Community residents exposed to nuclear power plant (NPP) accidents have long-term worry about the effects of radiation. After the 2011 Fukushima NPP accident, those who experienced traumatic events during the Great East Japan Earthquake (GEJE) tended to have greater worry about radiation. Along with the prolonged worry about radiation, there may also be cognitive changes caused by the traumatic events. We hypothesized that if there were cognitive changes underlying the prolonged worry about radiation, those who experienced the traumatic events would tend to have greater worry about other issues unrelated to radiation. We examined the effects of the traumatic events during the GEJE on community residents' worry about radiation and COVID-19 a decade after the Fukushima NPP accident. Using the data of a longitudinal questionnaire survey following a random sample of 4900 community residents outside the evacuation zone in Fukushima, this study analyzed 774 responses (15.8%). The traumatic events consisted of (1) injury, (2) injury or death of a family member, and (3) the loss of a house or other property. We developed a mediation model drawing paths from the traumatic events to worry about radiation and COVID-19, including posttraumatic stress symptoms (PTSS) as a mediator, using structural equation modeling. The traumatic events directly affected worry about radiation. Although it did not directly affect worry about COVID-19, it did so indirectly through worry about radiation and PTSS. Traumatic events can increase trauma-related worry independently of PTSS and increase trauma-unrelated worry indirectly through trauma-related worry and PTSS.
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Affiliation(s)
- Maiko Fukasawa
- Health Promotion Center, Fukushima Medical University, 1 Hikariga-oka, Fukushima City, Fukushima, 960-1295, Japan.
| | - Daisuke Nishi
- Department of Mental Health, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo Bunkyo-ku, Tokyo, 113-0033, Japan; Department of Public Mental Health Research, National Institute of Mental Health, National Center of Neurology and Psychiatry, 4-1-1 Ogawa-Higashi, Kodaira, Tokyo, 187-8551, Japan
| | - Maki Umeda
- Research Institute of Nursing Care for People and Community, University of Hyogo, 13-71 Kitaoji-cho, Akashi City, Hyogo, 673-8588, Japan
| | - Tsuyoshi Akiyama
- Department of Neuropsychiatry, NTT Medical Center Tokyo, 5-9-22 Higashi-Gotanda, Shinagawa-ku, Tokyo, 141-8625, Japan
| | - Naoko Horikoshi
- Radiation Medical Science Center for the Fukushima Health Management Survey, Fukushima Medical University, 1 Hikariga-oka, Fukushima City, Fukushima, 960-1295, Japan
| | - Seiji Yasumura
- Department of Public Health, Fukushima Medical University School of Medicine, 1 Hikariga-oka, Fukushima City, Fukushima, 960-1295, Japan
| | - Hirooki Yabe
- Department of Neuropsychiatry, Fukushima Medical University School of Medicine, 1 Hikariga-oka, Fukushima City, Fukushima, 960-1295, Japan
| | - Yuriko Suzuki
- Department of Public Mental Health Research, National Institute of Mental Health, National Center of Neurology and Psychiatry, 4-1-1 Ogawa-Higashi, Kodaira, Tokyo, 187-8551, Japan
| | - Evelyn J Bromet
- Department of Psychiatry and Behavioural Health, Stony Brook University, 100 Nicolls Road, Stony Brook, NY, 11794, USA
| | - Norito Kawakami
- Department of Digital Mental Health, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo Bunkyo-ku, Tokyo, 113-0033, Japan
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Lau B, Tominez P, Shing JZ, Vo JB, Pollom E, Taparra K. Racial Disparities among Asian American, Native Hawaiian, and Other Pacific Islander Patients with Cancer Who Refuse Recommended Radiation Therapy or Surgery. Cancers (Basel) 2023; 15:3358. [PMID: 37444468 DOI: 10.3390/cancers15133358] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2023] [Revised: 06/11/2023] [Accepted: 06/22/2023] [Indexed: 07/15/2023] Open
Abstract
Despite radiation therapy (RT) and surgery being the curative treatments, prior work demonstrated that the aggregated Asian American (AA) and Native Hawaiian and Other Pacific Islanders (NHPI) population refuse RT and surgery at a higher rates than other races. Given that AA and NHPI are distinct groups, data disaggregation is necessary to understand racial and ethnic disparities for treatment refusal. We aimed to (1) compare RT and surgery refusal rates between AA and NHPI populations, (2) assess RT and surgery refusal on overall mortality, and (3) determine predictors of refusing RT and surgery using the United States (U.S.) National Cancer Database. Adjusted odds ratios (aOR) and 95% confidence intervals (95%CI) for treatment refusal were calculated using logistic regression. Adjusted hazard ratios (aHR) were calculated for overall survival using Cox proportional hazard models among propensity score-matched groups. The overall rate of RT refusal was 4.8% and surgery refusal was 0.8%. Compared to East AA patients, NHPI patients had the highest risk of both RT refusal (aOR = 1.38, 95%CI = 1.21-1.61) and surgery refusal (aOR = 1.28, 95%CI = 1.00-1.61). RT refusal significantly predicted higher mortality (aHR = 1.17, 95%CI = 1.08-1.27), whereas surgery refusal did not. Predictors of RT and surgery refusal were older patient age, high comorbidity index, and cancer diagnosis between 2011-2017. The results show heterogenous treatment refusal patterns among AA and NHPI populations, suggesting areas for targeted intervention.
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Affiliation(s)
- Brianna Lau
- Department of Radiation Oncology, Stanford Medicine, Palo Alto, CA 94304, USA
| | - Paul Tominez
- School of Medicine, University of California, San Francisco, CA 94143, USA
| | - Jaimie Z Shing
- Division of Cancer Epidemiology & Genetics, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA
| | - Jacqueline B Vo
- Division of Cancer Epidemiology & Genetics, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA
| | - Erqi Pollom
- Department of Radiation Oncology, Stanford Medicine, Palo Alto, CA 94304, USA
- Affiliated Physician, Palo Alto Veterans Affairs Hospital, Palo Alto, CA 94304, USA
| | - Kekoa Taparra
- Department of Radiation Oncology, Stanford Medicine, Palo Alto, CA 94304, USA
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