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Hatsuda M, Kawasaki H, Shigenaga A, Taketani A, Takanashi T, Wakabayashi Y, Otake Y, Kamata Y, Ichinose A, Nishioka H, Kimura H, Koganei Y, Komoriya S, Sakai M, Hamano Y, Yoshida M, Yamakura F. Effects of neutron radiation generated in deep space-like environments on food resources. Sci Rep 2023; 13:12479. [PMID: 37528144 PMCID: PMC10394055 DOI: 10.1038/s41598-023-38990-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Accepted: 07/18/2023] [Indexed: 08/03/2023] Open
Abstract
The impact of deep space cosmic rays on food resources is as important as the risks of cosmic rays to the human body. This study demonstrates the potential for neutrons as secondary radiation in deep space spacecraft to cause meat activation and oxidative modification of proteins and lipids. We conducted a series of experiments such as the neutron irradiation experiment, the radioactivation analysis and the biochemical analysis. Neutrons with energies from 1 to 5 MeV with doses from 0.01 Gy to 4 Gy were irradiated by the RIKEN accelerated-driven neutron source (RANS). Radioactive nuclei, 24Na, 42K, and 38Cl, were detected in the neutron-irradiated meat. The modification products of the proteins by oxidative nitration, 6-nitrotryptophan (6NO2Trp), and by a lipid peroxidation, 4-hydroxy-2-nonenal (4-HNE), were detected in several proteins with neutron dose dependent. The proteome analysis showed that many oxidative modifications were detected in actin and myosin which are major proteins of myofibrils. This study is of crucial importance not only as risk factors for human space exploration, but also as fundamental effects of radiation on the components of the human body.
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Affiliation(s)
- Machiko Hatsuda
- Faculty of Health Science, Juntendo University, Tokyo, 113-0034, Japan.
| | - Hiroaki Kawasaki
- Faculty of Food and Health Sciences, Showa Women's University, Tokyo, 154-8533, Japan
| | - Ayako Shigenaga
- Institute of Health and Sports Science and Medicine, Juntendo University, Chiba, 270-1695, Japan
| | - Atsushi Taketani
- RIKEN Center for Advanced Photonics, RIKEN, Saitama, 351-0198, Japan
| | - Takaoki Takanashi
- RIKEN Center for Advanced Photonics, RIKEN, Saitama, 351-0198, Japan
| | - Yasuo Wakabayashi
- RIKEN Center for Advanced Photonics, RIKEN, Saitama, 351-0198, Japan
| | - Yoshie Otake
- RIKEN Center for Advanced Photonics, RIKEN, Saitama, 351-0198, Japan
| | - Yayoi Kamata
- Institute for Environmental and Gender-Specific Medicine, Juntendo University, Chiba, 279-0023, Japan
| | - Akari Ichinose
- Faculty of Food and Health Sciences, Showa Women's University, Tokyo, 154-8533, Japan
| | - Honoka Nishioka
- Faculty of Food and Health Sciences, Showa Women's University, Tokyo, 154-8533, Japan
| | - Hayato Kimura
- Faculty of Health Science, Juntendo University, Tokyo, 113-0034, Japan
| | - Yumi Koganei
- Faculty of Health Science, Juntendo University, Tokyo, 113-0034, Japan
| | - Shiomi Komoriya
- Faculty of Health Science, Juntendo University, Tokyo, 113-0034, Japan
| | - Miyu Sakai
- Faculty of Health Science, Juntendo University, Tokyo, 113-0034, Japan
| | - Yui Hamano
- Faculty of Health Science, Juntendo University, Tokyo, 113-0034, Japan
| | - Maria Yoshida
- Faculty of Health Science, Juntendo University, Tokyo, 113-0034, Japan
| | - Fumiyuki Yamakura
- Faculty of Health Science, Juntendo University, Tokyo, 113-0034, Japan
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Wakabayashi Y, Yan M, Takamura M, Ooishi R, Watase H, Ikeda Y, Otake Y. Development of the neutron salt-meter RANS-μ for non-destructive inspection of concrete structure at on-site use. JOURNAL OF NEUTRON RESEARCH 2022. [DOI: 10.3233/jnr-220031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
We have started the development of a transportable neutron salt-meter, we call it RANS-μ, combining a 252Cf neutron source and a prompt gamma neutron activation analysis. Trials of chloride detection measurement with RANS-μ were performed outdoor using removed bridges damaged by chloride attack at an outdoor yard in Public Works Research Institute (PWRI) and a test bridge in Fukushima Robot Test Field. For the measurement at PWRI, the results obtained by RANS-μ were compared with those of the automatic potentiometric titration by drilled powder, and then consistent results were obtained.
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Affiliation(s)
| | - Mingfei Yan
- RIKEN Center for Advanced Photonics, RIKEN, Japan
| | | | | | | | - Yujiro Ikeda
- RIKEN Center for Advanced Photonics, RIKEN, Japan
| | - Yoshie Otake
- RIKEN Center for Advanced Photonics, RIKEN, Japan
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Otake Y. RIKEN Accelerator-driven compact Neutron systems, RANS project -RANS, RANS-II, III, RANS-μ-. JOURNAL OF NEUTRON RESEARCH 2021. [DOI: 10.3233/jnr-210018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
RIKEN Accelerator-driven compact neutron source, RANS, has been operational since 2013. There are two major goals of RANS research and development. One is to establish a new compact low energy neutron non-destructive evaluation system on-site of floor-standing type for industrial use. Another goal is to invent a novel transportable compact neutron system for the preventive maintenance of large scale construction such as a bridge. For the realization of the preventive maintenance usage with neutron methods for non-destructive test of large scale structures on-site, “Standardization”, such as inclusion in manuals and inspection procedures, is essential. Technology research association for the infrastructure preventive maintenance standardization is established. RANS and RANS-II are in operation, and RANS-III, and RANS-μ, neutron salt-meter, are under development.
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Affiliation(s)
- Yoshie Otake
- RIKEN Center for Advanced Photonics, RIKEN, Wako-shi, Saitama, Japan. E-mail:
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