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Zhou S, Li Y, He L, Chen M, Li W, Xiao T, Guan J, Qi Z, Wang Q, Li S, Zhou P, Wang Z. Haptoglobin is an early indicator of survival after radiation-induced severe injury and bone marrow transplantation in mice. Stem Cell Res Ther 2022; 13:461. [PMID: 36068556 PMCID: PMC9450283 DOI: 10.1186/s13287-022-03162-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2022] [Accepted: 05/23/2022] [Indexed: 11/15/2022] Open
Abstract
Background Hematopoietic stem cell transplantation (HSCT) is the main treatment for acute radiation sickness, especially after fatal radiation. The determination of HSCT for radiation patients is mainly based on radiation dose, hemogram and bone marrow injury severity. This study aims to explore a better biomarker of acute radiation injury from the perspective of systemic immune response.
Methods C57BL/6J female mice were exposed to total body irradiation (TBI) and partial body irradiation (PBI). Changes in haptoglobin (Hp) level in plasma were shown at different doses and time points after the exposure and treatment with amifostine or bone marrow transplantation. Student’s t-test/two tailed test were used in two groups. To decide the Hp levels as a predictor of the radiation dose in TBI and PBI, multiple linear regression analysis were performed. The ability of biomarkers to identify two groups of different samples was determined by the receiver operating characteristic (ROC) curve. The results were expressed as mean ± standard deviation (SD). Significance was set at P value < 0.05, and P value < 0.01 was set as highly significant. Survival distribution was determined by log-rank test. Results In this study, we found that Hp was elevated dose-dependently in plasma in the early post-irradiation period and decreased on the second day, which can be used as a molecular indicator for early dose assessment. Moreover, we detected the second increase of Hp on the 3rd and 5th days after the lethal irradiation at 10 Gy, which was eliminated by amifostine, a radiation protection drug, while protected mice from death. Most importantly, bone marrow transplantation (BMT) on the 3rd and 5th day after 10 Gy radiation improved the 30-days survival rate, and effectively accelerated the regression of secondary increased Hp level. Conclusions Our study suggests that Hp can be used not only as an early molecule marker of radiation injury, but also as an important indicator of bone marrow transplantation therapy for radiation injury, bringing new scientific discoveries in the diagnosis and treatment of acute radiation injury from the perspective of systemic immunity. Supplementary Information The online version contains supplementary material available at 10.1186/s13287-022-03162-x.
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Affiliation(s)
- Shixiang Zhou
- Department of Radiobiology, Beijing Key Laboratory for Radiobiology, Beijing Institute of Radiation Medicine, Beijing, 100850, China
| | - Yaqiong Li
- Department of Radiobiology, Beijing Key Laboratory for Radiobiology, Beijing Institute of Radiation Medicine, Beijing, 100850, China
| | - Lexin He
- Department of Radiobiology, Beijing Key Laboratory for Radiobiology, Beijing Institute of Radiation Medicine, Beijing, 100850, China
| | - Min Chen
- Department of Radiotherapy, Nanfang Hospital, Southern Medical University, Guangzhou, 510080, China
| | - Weihong Li
- Department of Radiobiology, Beijing Key Laboratory for Radiobiology, Beijing Institute of Radiation Medicine, Beijing, 100850, China.,Graduate Collaborative Training Base of Academy of Military Sciences, Hengyang Medical School, University of South China, Hengyang, 421001, Hunan, China
| | - Ting Xiao
- Department of Radiotherapy, Nanfang Hospital, Southern Medical University, Guangzhou, 510080, China
| | - Jian Guan
- Department of Radiotherapy, Nanfang Hospital, Southern Medical University, Guangzhou, 510080, China
| | - Zhenhua Qi
- Department of Radiobiology, Beijing Key Laboratory for Radiobiology, Beijing Institute of Radiation Medicine, Beijing, 100850, China
| | - Qi Wang
- Department of Radiobiology, Beijing Key Laboratory for Radiobiology, Beijing Institute of Radiation Medicine, Beijing, 100850, China
| | - Siyuan Li
- Department of Radiobiology, Beijing Key Laboratory for Radiobiology, Beijing Institute of Radiation Medicine, Beijing, 100850, China.,Graduate Collaborative Training Base of Academy of Military Sciences, Hengyang Medical School, University of South China, Hengyang, 421001, Hunan, China
| | - Pingkun Zhou
- Department of Radiobiology, Beijing Key Laboratory for Radiobiology, Beijing Institute of Radiation Medicine, Beijing, 100850, China.
| | - Zhidong Wang
- Department of Radiobiology, Beijing Key Laboratory for Radiobiology, Beijing Institute of Radiation Medicine, Beijing, 100850, China. .,Graduate Collaborative Training Base of Academy of Military Sciences, Hengyang Medical School, University of South China, Hengyang, 421001, Hunan, China.
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Yamamoto K, Nomura S, Tsubokura M, Murakami M, Ozaki A, Leppold C, Sawano T, Takita M, Kato S, Kanazawa Y, Anbe H. Internal exposure risk due to radiocesium and the consuming behaviour of local foodstuffs among pregnant women in Minamisoma City near the Fukushima nuclear power plant: a retrospective observational study. BMJ Open 2019; 9:e023654. [PMID: 31289047 PMCID: PMC6615778 DOI: 10.1136/bmjopen-2018-023654] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
Abstract
OBJECTIVES This study aimed to evaluate the internal cesium (Cs) level among pregnant women in Minamisoma City (the area straddling the evacuation zones) over a 5-year period after Japan's 2011 Fukushima nuclear accident and assess the status and transition of their food-acquiring preferences during this period. DESIGN A retrospective observational study of a screening along with a questionnaire survey. SETTING This study was conducted in an obstetrics and gynaecology service in Minamisoma City in Fukushima, Japan. PARTICIPANTS Participants included pregnant women who applied for the voluntary internal radiation exposure screening programme. PRIMARY AND SECONDARY OUTCOME MEASURES Internal radiation exposure was evaluated using the whole-body counter (WBC) in the screening programme. Data from a food acquisition preference questionnaire administered to the participants were analysed and compared across the 5-year period after adjusting for covariates. RESULTS Overall, 804 screening programmes were conducted with 579 participants during the study period. All participants had internal contamination levels below the detection limit of the WBC unit (220 and 250 Bq/body for Cs-134 and Cs-137, respectively). Based on the most conservative assumption, their maximum annual effective doses by Cs-134 and Cs-137 together were estimated at 16 µSv/year. Contrary to limited internal contamination risks and counter-dose initiatives by the government, a considerable number of pregnant women were still concerned about consuming potentially contaminated local food products when purchasing them at supermarkets between 2012 (78.4%) and 2015 (75.0%). CONCLUSIONS Health effects from post-accident internal radiation exposure were likely to be insignificant in pregnant women. National/local action is urgently needed to promote scientific understanding in pregnant women regarding limited internal exposure risks from local food products in the market. However, few mothers chose to participate in the internal radiation exposure screening programme, and thus, caution is required in interpreting the results of analyses.
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Affiliation(s)
- Kana Yamamoto
- Department of Internal Medicine, Minamisoma Municipal General Hospital, Minamisoma, Fukushima, Japan
| | - Shuhei Nomura
- Department of Global Health Policy, The University of Tokyo, Tokyo, Bunkyo-ku, Japan
| | - Masaharu Tsubokura
- Department of Research, Research Center for Community Health, Minamisoma Municipal General Hospital, Fukushima, Japan
| | - Michio Murakami
- Department of Health Risk Communication, Fukushima Medical University School of Medicine, Fukushima City, Japan
| | - Akihiko Ozaki
- Department of Research, Research Center for Community Health, Minamisoma Municipal General Hospital, Fukushima, Japan
| | - Claire Leppold
- Department of Research, Minamisoma Municipal General Hospital, Minamisoma, Fukushima, Japan
| | - Toyoaki Sawano
- Department of Surgery, Minamisoma Municipal General Hospital, Minamisoma, Fukushima, Japan
| | - Morihito Takita
- Department of Internal Medicine, Tokiwa Foundation, Iwaki, Fukushima, Japan
| | - Shigeaki Kato
- Research Institute of Innovative Medicine, Tokiwa Foundation, Iwaki, Fukushima, Japan
| | - Yukio Kanazawa
- Department of Gastroenterology, Minamisoma Municipal General Hospital, Fukushima, Japan
| | - Hiroshi Anbe
- Department of Obstetrics and Gynecology, Minamisoma Municipal General Hospital, Minamisoma, Fukushima, Japan
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Tsubokura M, Murakami M, Nomura S, Morita T, Nishikawa Y, Leppold C, Kato S, Kami M. Individual external doses below the lowest reference level of 1 mSv per year five years after the 2011 Fukushima nuclear accident among all children in Soma City, Fukushima: A retrospective observational study. PLoS One 2017; 12:e0172305. [PMID: 28235009 PMCID: PMC5325236 DOI: 10.1371/journal.pone.0172305] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2016] [Accepted: 02/02/2017] [Indexed: 11/24/2022] Open
Abstract
After the 2011 Fukushima Daiichi nuclear power plant accident, little information has been available on individual doses from external exposure among residents living in radioactively contaminated areas near the nuclear plant; in the present study we evaluated yearly changes in the doses from external exposure after the accident and the effects of decontamination on external exposure. This study considered all children less than 16 years of age in Soma City, Fukushima who participated in annual voluntary external exposure screening programs during the five years after the accident (n = 5,363). In total, 14,405 screening results were collected. The median participant age was eight years. The geometric mean levels of annual additional doses from external exposure attributable to the Fukushima accident, decreased each year: 0.60 mSv (range: not detectable (ND)–4.29 mSv), 0.37 mSv (range: ND–3.61 mSv), 0.22 mSv (range: ND–1.44 mSv), 0.20 mSv (range: ND–1.87 mSv), and 0.17 mSv (range: ND–0.85 mSv) in 2011, 2012, 2013, 2014, and 2015, respectively. The proportion of residents with annual additional doses from external exposure of more than 1 mSv dropped from 15.6% in 2011 to zero in 2015. Doses from external exposure decreased more rapidly than those estimated from only physical decay, even in areas without decontamination (which were halved in 395 days from November 15, 2011), presumably due to the weathering effects. While the ratios of geometric mean doses immediately after decontamination to before were slightly lower than those during the same time in areas without decontamination, annual additional doses reduced by decontamination were small (0.04–0.24 mSv in the year of immediately after decontamination was completed). The results of this study showed that the levels of external exposure among Soma residents less than 16 years of age decreased during the five years after the Fukushima Daiichi nuclear power plant accident. Decontamination had only limited and temporal effects on reducing individual external doses.
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Affiliation(s)
- Masaharu Tsubokura
- Department of Radiation Protection, Soma Central Hospital, Soma, Fukushima, Japan
| | - Michio Murakami
- Department of Health Risk Communication, Fukushima Medical University School of Medicine, Fukushima, Fukushima, Japan
| | - Shuhei Nomura
- Department of Global Health Policy, Graduate School of Medicine, University of Tokyo, Bunkyo-ku, Tokyo, Japan.,Department of Epidemiology and Biostatistics, School of Public Health, Imperial College London, Norfolk Place, London, United Kingdom
| | - Tomohiro Morita
- Department of Internal Medicine, Soma Central Hospital, Soma, Fukushima, Japan
| | - Yoshitaka Nishikawa
- Department of Health Informatics, School of Public Health, Kyoto University, Kyoto, Kyoto, Japan
| | - Claire Leppold
- Global Public Health Unit, School of Social and Political Science, University of Edinburgh, Edinburgh, United Kingdom
| | - Shigeaki Kato
- Research Institute of Innovative Medicine, Tokiwa Foundation, Iwaki, Fukushima, Japan
| | - Masahiro Kami
- Medical Governance Research Institute, Minato-ku, Tokyo, Japan
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Ishikawa T. Radiation Doses and Associated Risk From the Fukushima Nuclear Accident. Asia Pac J Public Health 2016; 29:18S-28S. [DOI: 10.1177/1010539516675703] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The magnitude of dose due to the Fukushima Daiichi Accident was estimated by the United Nations Scientific Committee on the Effects of Atomic Radiation (UNSCEAR) 2013 report published in April 2014. Following this, the UNSCEAR white paper, which comprises a digest of new information for the 2013 Fukushima report, was published in October 2015. Another comprehensive report on radiation dose due to the accident is the International Atomic Energy Agency (IAEA) report on the Fukushima Daiichi Accident published in August 2015. Although the UNSCEAR and IAEA publications well summarize doses received by residents, they review only literature published before the end of December 2014 and the end of March 2015, respectively. However, some studies on dose estimation have been published since then. In addition, the UNSCEAR 2013 report states it was likely that some overestimation had been introduced generally by the methodology used by the Committee. For example, effects of decontamination were not considered in the lifetime external dose estimated. Decontamination is in progress for most living areas in Fukushima Prefecture, which could reduce long-term external dose to residents. This article mainly reviews recent English language articles that may add new information to the UNSCEAR and IAEA publications. Generally, recent articles suggest lower doses than those presented by the UNSCEAR 2013 report.
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Yamashita S. Comprehensive Health Risk Management after the Fukushima Nuclear Power Plant Accident. Clin Oncol (R Coll Radiol) 2016; 28:255-262. [PMID: 26817782 DOI: 10.1016/j.clon.2016.01.001] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2015] [Accepted: 01/04/2015] [Indexed: 10/22/2022]
Abstract
Five years have passed since the Great East Japan Earthquake and the subsequent Fukushima Daiichi Nuclear Power Plant accident on 11 March 2011. Countermeasures aimed at human protection during the emergency period, including evacuation, sheltering and control of the food chain were implemented in a timely manner by the Japanese Government. However, there is an apparent need for improvement, especially in the areas of nuclear safety and protection, and also in the management of radiation health risk during and even after the accident. Continuous monitoring and characterisation of the levels of radioactivity in the environment and foods in Fukushima are now essential for obtaining informed consent to the decisions on living in the radio-contaminated areas and also on returning back to the evacuated areas once re-entry is allowed; it is also important to carry out a realistic assessment of the radiation doses on the basis of measurements. Until now, various types of radiation health risk management projects and research have been implemented in Fukushima, among which the Fukushima Health Management Survey is the largest health monitoring project. It includes the Basic Survey for the estimation of external radiation doses received during the first 4 months after the accident and four detailed surveys: thyroid ultrasound examination, comprehensive health check-up, mental health and lifestyle survey, and survey on pregnant women and nursing mothers, with the aim to prospectively take care of the health of all the residents of Fukushima Prefecture for a long time. In particular, among evacuees of the Fukushima Nuclear Power Plant accident, concern about radiation risk is associated with psychological stresses. Here, ongoing health risk management will be reviewed, focusing on the difficult challenge of post-disaster recovery and resilience in Fukushima.
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Affiliation(s)
- S Yamashita
- Radiation Medical Science Center for the Fukushima Health Management Survey, Fukushima Medical University, Fukushima, Japan; Atomic Bomb Disease Institute, Nagasaki University, Nagasaki, Japan.
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