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Guo J, Liu T, Ma L, Hao W, Yan H, Li T, Yang Y, Cai J, Gao F, Xu Z, Liu H. Polydatin Attenuates 14.1 MeV Neutron-Induced Injuries via Regulating the Apoptosis and Antioxidative Pathways and Improving the Hematopoiesis of Mice. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2020; 2020:8905860. [PMID: 32934763 PMCID: PMC7479486 DOI: 10.1155/2020/8905860] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Accepted: 08/01/2020] [Indexed: 11/17/2022]
Abstract
With more powerful penetrability and ionizing capability, high energetic neutron radiation (HENR) often poses greater threats than photon radiation, especially on such occasions as nuclear bomb exposure, nuclear accidents, aerospace conduction, and neutron-based radiotherapy. Therefore, there emerges an urgent unmet demand in exploring highly efficient radioprotectants against HENR. In the present study, high-throughput 14.1 MeV neutrons were generated by the high-intensity D-T fusion neutron generator (HINEG) and succeeded in establishing the acute radiation syndrome (ARS) mouse model induced by HENR. A series of preclinical studies, including morphopathological assessment, flow cytometry, peripheral complete blood, and bone marrow karyocyte counting, were applied showing much more serious detriments of HENR than the photon radiation. In specific, it was indicated that surviving fraction of polydatin- (PD-) treated mice could appreciably increase to up to 100% when they were exposed to HENR. Moreover, polydatin contributed much in alleviating the HENR-induced mouse body weight loss, spleen and testis indexes decrease, and the microstructure alterations of both the spleen and the bone marrow. Furthermore, we found that the HENR-damaged hematopoiesis was greatly prevented by PD treatment in such aspects as bone marrow hemocytogenesis, splenocytes balancing, or even the peripheral blood cellularity. The additional IHC investigations revealed that PD could exert potent hematopoiesis-promoting effects against HENR via suppressing apoptosis and promoting the antioxidative enzymes such as HO-1.
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Affiliation(s)
- Jiaming Guo
- Department of Radiation Medicine, College of Naval Medicine, Naval Medical University, Shanghai 200433, China
| | - Tingting Liu
- Department of Radiation Medicine, College of Naval Medicine, Naval Medical University, Shanghai 200433, China
| | - Long Ma
- Department of Reproductive Medicine Center, Changhai Hospital, Naval Medical University, Shanghai 200433, China
| | - Wei Hao
- Department of Endocrinology, Changhai Hospital, Naval Medical University, Shanghai 200433, China
| | - Hongli Yan
- Department of Reproductive Medicine Center, Changhai Hospital, Naval Medical University, Shanghai 200433, China
| | - Taosheng Li
- Institute of Nuclear Energy Safety Technology, Chinese Academy of Sciences, Hefei, Anhui 230031, China
| | - Yanyong Yang
- Department of Radiation Medicine, College of Naval Medicine, Naval Medical University, Shanghai 200433, China
| | - Jianming Cai
- Department of Radiation Medicine, College of Naval Medicine, Naval Medical University, Shanghai 200433, China
| | - Fu Gao
- Department of Radiation Medicine, College of Naval Medicine, Naval Medical University, Shanghai 200433, China
| | - Zhao Xu
- Institute of Nuclear Energy Safety Technology, Chinese Academy of Sciences, Hefei, Anhui 230031, China
| | - Hu Liu
- Department of Radiation Medicine, College of Naval Medicine, Naval Medical University, Shanghai 200433, China
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