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Naoe S, Fujimoto Y, Murakami K, Yukimine R, Tanaka A, Yamaoka K, Kataoka T. Effects of low-dose/high-dose-rate X-irradiation on oxidative stress in organs following forced swim test and its combined effects on alcohol-induced liver damage in mice. JOURNAL OF RADIATION RESEARCH 2023:7167646. [PMID: 37205845 PMCID: PMC10354849 DOI: 10.1093/jrr/rrad030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/26/2022] [Revised: 02/16/2023] [Indexed: 05/21/2023]
Abstract
The liver's susceptibility to oxidative stress after a combination of forced swim test (FST) and low-dose-rate γ-irradiation has been observed. Therefore, this study aims to clarify the effects of low-dose (0.1 and 0.5 Gy)/high-dose-rate (1.2 Gy/min) irradiation on combined oxidative stressors-liver damage associated with FST and alcohol administration. In addition, the effects of similar irradiation on FST-induced immobility, which induces psychomotor retardation, and antioxidative effects on the brain, lungs, liver and kidneys were investigated, and the results were compared with those of a similar previous study that utilized low-dose-rate irradiation. Low-dose/high-dose-rate (especially 0.5 Gy) irradiation temporarily worsened liver antioxidant function and hepatic function with FST- and alcohol administration-related oxidative damage; however, the damages improved soon after. In addition, the increase in total glutathione content in the liver contributed to the early improvement of hepatic functions. However, pre-irradiation did not suppress immobility during the FST. The results also suggested that the effects of low-dose/high-dose-rate irradiation on the antioxidant functions of each organ after the FST were different from those of low-dose/low-dose-rate irradiation. Overall, this study provides further insights into the effects of low-dose irradiation on exposure to a combination of different oxidative stressors. It will also contribute to the elucidation of dose rate effects on oxidative stress in the low-dose irradiation range.
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Affiliation(s)
- Shota Naoe
- Graduate School of Health Sciences, Okayama University, 5-1 Shikata-cho 2-chome, Kita-ku, Okayama-shi, Okayama 700-8558, Japan
| | - Yuki Fujimoto
- Graduate School of Health Sciences, Okayama University, 5-1 Shikata-cho 2-chome, Kita-ku, Okayama-shi, Okayama 700-8558, Japan
| | - Kaito Murakami
- Graduate School of Health Sciences, Okayama University, 5-1 Shikata-cho 2-chome, Kita-ku, Okayama-shi, Okayama 700-8558, Japan
| | - Ryohei Yukimine
- Graduate School of Health Sciences, Okayama University, 5-1 Shikata-cho 2-chome, Kita-ku, Okayama-shi, Okayama 700-8558, Japan
| | - Ayumi Tanaka
- Graduate School of Health Sciences, Okayama University, 5-1 Shikata-cho 2-chome, Kita-ku, Okayama-shi, Okayama 700-8558, Japan
| | - Kiyonori Yamaoka
- Faculty of Health Sciences, Okayama University, 5-1 Shikata-cho 2-chome, Kita-ku, Okayama-shi, Okayama 700-8558, Japan
| | - Takahiro Kataoka
- Faculty of Health Sciences, Okayama University, 5-1 Shikata-cho 2-chome, Kita-ku, Okayama-shi, Okayama 700-8558, Japan
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Yasui K, Takebayashi Y, Motoya R, Aoki S, Horiuchi T, Hatsuzawa T, Nakano K, Ohba T, Yoshida K, Midorikawa S, Ohtsuru A, Murakami M. Trajectory and factors of radiation risk perception of students aged 10-12 years at the time of the Fukushima Daiichi Nuclear Power Station accident. JOURNAL OF RADIOLOGICAL PROTECTION : OFFICIAL JOURNAL OF THE SOCIETY FOR RADIOLOGICAL PROTECTION 2021; 41:1166-1183. [PMID: 34034244 DOI: 10.1088/1361-6498/ac04b7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/17/2021] [Accepted: 05/25/2021] [Indexed: 06/12/2023]
Abstract
Various studies have investigated radiation risk perceptions after the accident at the Fukushima Daiichi Nuclear Power Station. However, student surveys are limited. This study aimed to investigate the perception of radiation risk among students aged 18-20 years who were in the 5th and 6th grades of elementary school at the time of the accident. We surveyed students in the Fukushima Prefecture and outside the prefecture. Out of all the data, 59% of the respondents were living in the Fukushima Prefecture at the time of the accident and 41% outside the prefecture. Trajectory analysis showed that changes in anxiety levels over time since 2011 could be divided into five classes: (a) the anxiety was the highest, and this tendency persisted. (b) High at the beginning, but decreased more quickly than class 1. (c) High at the beginning, but it diminished quickly. (d) Not high, but did not diminish easily in later years. (e) Low from the beginning, and persisted. Multinomial logistic analysis showed that among students living outside the prefecture at the time of the accident, a significantly higher proportion was in groups 4 and 5 than in group 2. A significant proportion of boys were present in groups 3, 4 and 5. A significant proportion of students whose current educational institutions were inside the prefecture were present in group 3. The level of anxiety was associated with the academic course, but not with subjective knowledge of radiation. In contrast, in the qualitative analysis of the free text, 31% considered 'knowledge about radiation' as the reason for the reduction in anxiety level. At the time of the investigation, most young people were not anxious about radiation. However, approximately 20% still had strong anxiety. We established that continuous risk communication is necessary. Furthermore, that stabilization and support related to life in general is important.
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Affiliation(s)
- Kiyotaka Yasui
- Department of Health Risk Communication, Fukushima Medical University School of Medicine, 1 Hikarigaoka, Fukushima City 960-1295, Japan
| | - Yoshitake Takebayashi
- Department of Health Risk Communication, Fukushima Medical University School of Medicine, 1 Hikarigaoka, Fukushima City 960-1295, Japan
| | - Ryo Motoya
- School of Psychological Science, Health Sciences University of Hokkaido, Hokkaido, Japan
| | - Shuntaro Aoki
- Center for Medical Education and Career Development, Fukushima Medical University, Fukushima, Japan
| | - Teruko Horiuchi
- School of Nursing, Fukushima Medical University, Fukushima, Japan
| | - Toshio Hatsuzawa
- Faculty of Human Development and Culture, Fukushima University, Fukushima, Japan
| | | | - Takashi Ohba
- Department of Radiation Health Management, Fukushima Medical University, Fukushima, Japan
| | - Kazuki Yoshida
- Faculty of Nursing, Iryo Sosei University, Fukushima, Japan
| | - Sanae Midorikawa
- Faculty of Human Life Science, Miyagi Gakuin Women's University, Miyagi, Japan
| | - Akira Ohtsuru
- Atomic Bomb Disease Institute, Nagasaki University, Nagasaki, Japan
| | - Michio Murakami
- Department of Health Risk Communication, Fukushima Medical University School of Medicine, 1 Hikarigaoka, Fukushima City 960-1295, Japan
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Social and Mental Health Impact of Nuclear Disaster in Survivors: A Narrative Review. Behav Sci (Basel) 2021; 11:bs11080113. [PMID: 34436103 PMCID: PMC8389263 DOI: 10.3390/bs11080113] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2021] [Revised: 08/18/2021] [Accepted: 08/20/2021] [Indexed: 12/03/2022] Open
Abstract
This narrative review synthesizes the literature on the psychological consequences of the Three Mile Island nuclear accident of 1979, the Chernobyl nuclear disaster of 1986, and the Fukushima nuclear disaster of 2011. A search was conducted on OVID for studies in English from 1966 to 2020. Fifty-nine studies were included. Living through a nuclear disaster is associated with higher levels of PTSD, depression, and anxiety. Decontamination workers, those living in closest proximity to the reactor, and evacuees experience higher rates of mental health problems after a nuclear disaster. Those with greater psychological resilience and social supports experience lower rates of psychological distress. Individual-level interventions, such as mindfulness training, behavioral activation, and cognitive reappraisal training, have shown modest benefits on improving psychological wellbeing. At the population level, many of the measures in place aimed at reducing exposure to radiation actually increase individuals’ anxiety. Technology-based supports have been studied in other types of natural disasters and it may be beneficial to look at mobile-based interventions for future nuclear disasters.
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Disruption of Child Environments and Its Psychological Consequences After the Fukushima Disaster: a Narrative Review Based on the Ecological Systems Model. Curr Psychiatry Rep 2021; 23:49. [PMID: 34196819 DOI: 10.1007/s11920-021-01263-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 05/27/2021] [Indexed: 10/21/2022]
Abstract
PURPOSE OF REVIEW A high prevalence of clinically significant mental health problems was found in children affected by the Fukushima disaster in Japan. We reviewed the literature on child mental health to examine how disasters impacted children in Fukushima. RECENT FINDINGS Children's environments, such as family and peer systems, were disrupted by radiation concerns and evacuation. As children struggled with less resources at home and school, they also had to deal with discrimination. Various interventions were implemented, ranging from government financial assistance to several mental health services provided by local care resources to families and children. In addition to organizing such interventions discretely in each microsystem, a collaborative approach involving various intervening entities across multiple levels was deemed necessary for providing comprehensive support to the affected children and their families. To promote the healthy psychological development of children, it is necessary to provide multidimensional support for their families, particularly parents, through multidisciplinary collaboration between professionals involved in child and family care.
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Psychological outcomes for young adults after disastrous events: A mixed-methods scoping review. Soc Sci Med 2021; 276:113851. [PMID: 33812159 DOI: 10.1016/j.socscimed.2021.113851] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Revised: 02/03/2021] [Accepted: 03/13/2021] [Indexed: 12/13/2022]
Abstract
RATIONALE Young adulthood (18 to 34) is a time of transitional change where individuals can be highly susceptible to mental health concerns. Despite similar vulnerabilities to their adolescent counterparts, the psychological outcomes for young adults following disasters are not well understood. OBJECTIVE This scoping review aimed to explore the literature on the psychological outcomes for young adults after disaster events. METHODS A systematic search of the literature was conducted in seven electronic databases, including PsycINFO, Medline, CINAHL, PILOTS, EMBASE, Scopus, and ProQuest dissertations and theses global. In total, 91 reports from 15 countries were included. RESULTS Findings suggested that young adults experience a range of psychological consequences after disasters, including posttraumatic stress symptoms, depression, anxiety, and other psychological outcomes, such as general/non-specific psychological distress. Pre-disaster, peri-disaster, and post-disaster factors were also found to influence the degree of psychological outcomes experienced by young adults, including prior psychological functioning and disaster exposure, among a host of other factors. CONCLUSION Future research is recommended to better understand young adults' psychological outcomes, experiences, and service needs following disasters.
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Mental health consequences for survivors of the 2011 Fukushima nuclear disaster: a systematic review. Part 2: emotional and behavioral consequences. CNS Spectr 2021; 26:30-42. [PMID: 32189603 DOI: 10.1017/s1092852920000115] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
To compile the findings of studies assessing emotional and behavioral changes in the survivors of the 2011 Fukushima nuclear disaster, we performed a systematic review in August 2019 using four literature databases (PubMed, PsycINFO, Psychology and Behavioral Sciences Collection, and ICHUSHI). Peer-reviewed manuscripts, either in English or Japanese, were included in the searches. Sixty-one studies were retrieved for the review. Of these, 41 studies (67.2%) assessed emotional consequences, 28 studies (45.9%) evaluated behavioral consequences, and 8 studies (13.1%) evaluated both emotional and behavioral outcomes. The main research topic in emotional change was radiation exposure-associated risk perception, as reported in 15 studies. This risk perception included immediate health effects (eg, acute radiation syndrome) as well as future health effects (eg, future cancer and genetic effects). Lowered subjective well-being was reported in eight studies. Six studies reported perceived discrimination/stigmatization in the disaster survivors. The most critical behavioral change was an increase in suicides compared with residents in the whole of Japan or affected by the earthquake and tsunami, but not by the nuclear disaster. Increased rate of alcohol and tobacco use was reported, although the effect on one's health was inconsistent. As a conclusion, the Fukushima nuclear disaster survivors suffered issues in risk perception, well-being, stigmatization, and alcohol/tobacco use in the first 8 years after the disaster. The present study is important in order to better understand the emotional and behavioral responses to future nuclear/radiological disasters as well as other "invisible" disasters, such as chemical and biological public health crises.
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Mental health consequences for survivors of the 2011 Fukushima nuclear disaster: a systematic review. Part 1: psychological consequences. CNS Spectr 2021; 26:14-29. [PMID: 32192553 DOI: 10.1017/s1092852920000164] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
To integrate scholastic literature regarding the prevalence and characteristics of the psychological consequences faced by survivors of the 2011 Fukushima earthquake/tsunami/nuclear disaster, we conducted a systematic review of survivor studies concerning the Fukushima disaster. In August 2019, four literature databases (PubMed, PsycINFO, Psychology and Behavioral Sciences Collection, and ICHUSHI) were used in the literature search. Peer-reviewed manuscripts reporting psychological consequences, either in English or Japanese, were selected. A total of 79 studies were selected for the review. Twenty-four studies (30.4%) were conducted as part of the Fukushima Health Management Survey-large-scale cohort study recruiting the residents of the entire Fukushima prefecture. Study outcomes were primarily nonspecific psychological distress, depressive symptoms, post-traumatic stress symptoms, and anxiety symptoms. The rates of high-risk individuals determined by the studies varied significantly owing to methodological differences. Nevertheless, these rates were mostly high (nonspecific psychological distress, 8.3%-65.1%; depressive symptoms, 12%-52.0%; and post-traumatic stress symptoms, 10.5%-62.6%). Many studies focused on vulnerable populations such as children, mothers of young children, evacuees, and nuclear power plant workers. However, few studies reported on the intervention methods used or their effect on the survivors. As a conclusion, high rates of individuals with psychological conditions, as well as a wide range of mental conditions, were reported among the Fukushima nuclear disaster survivors in the first 8 years after the disaster. These findings demonstrate the substantial impact of this compound disaster, especially in the context of a nuclear catastrophe.
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Public Health Preparedness for and Response to Nuclear Disasters: An Editorial. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2018; 15:ijerph15112489. [PMID: 30413013 PMCID: PMC6267002 DOI: 10.3390/ijerph15112489] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 11/05/2018] [Accepted: 11/06/2018] [Indexed: 11/16/2022]
Abstract
In 2011, resilience to nuclear disasters emerged as a core public health challenge. [...].
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