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Carpenter AD, Li Y, Janocha BL, Wise SY, Fatanmi OO, Maniar M, Cheema AK, Singh VK. Analysis of the Proteomic Profile in Serum of Irradiated Nonhuman Primates Treated with Ex-Rad, a Radiation Medical Countermeasure. J Proteome Res 2023; 22:1116-1126. [PMID: 36977373 PMCID: PMC10088047 DOI: 10.1021/acs.jproteome.2c00458] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/30/2023]
Abstract
There are currently four radiation medical countermeasures that have been approved by the United States Food and Drug Administration to mitigate hematopoietic acute radiation syndrome, all of which are repurposed radiomitigators. The evaluation of additional candidate drugs that may also be helpful for use during a radiological/nuclear emergency is ongoing. A chlorobenzyl sulfone derivative (organosulfur compound) known as Ex-Rad, or ON01210, is one such candidate medical countermeasure, being a novel, small-molecule kinase inhibitor that has demonstrated efficacy in the murine model. In this study, nonhuman primates exposed to ionizing radiation were subsequently administered Ex-Rad as two treatment schedules (Ex-Rad I administered 24 and 36 h post-irradiation, and Ex-Rad II administered 48 and 60 h post-irradiation) and the proteomic profiles of serum using a global molecular profiling approach were assessed. We observed that administration of Ex-Rad post-irradiation is capable of mitigating radiation-induced perturbations in protein abundance, particularly in restoring protein homeostasis, immune response, and mitigating hematopoietic damage, at least in part after acute exposure. Taken together, restoration of functionally significant pathway perturbations may serve to protect damage to vital organs and provide long-term survival benefits to the afflicted population.
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Affiliation(s)
- Alana D Carpenter
- Division of Radioprotectants, Department of Pharmacology and Molecular Therapeutics, F. Edward Hébert School of Medicine, Uniformed Services University of the Health Sciences, Bethesda, Maryland 20814, United States
- Armed Forces Radiobiology Research Institute, Uniformed Services University of the Health Sciences, Bethesda, Maryland 20814, United States
| | - Yaoxiang Li
- Department of Oncology, Lombardi Comprehensive Cancer Center, Georgetown University Medical Center, Washington, District of Columbia 20057, United States
| | - Brianna L Janocha
- Division of Radioprotectants, Department of Pharmacology and Molecular Therapeutics, F. Edward Hébert School of Medicine, Uniformed Services University of the Health Sciences, Bethesda, Maryland 20814, United States
- Armed Forces Radiobiology Research Institute, Uniformed Services University of the Health Sciences, Bethesda, Maryland 20814, United States
| | - Stephen Y Wise
- Division of Radioprotectants, Department of Pharmacology and Molecular Therapeutics, F. Edward Hébert School of Medicine, Uniformed Services University of the Health Sciences, Bethesda, Maryland 20814, United States
- Armed Forces Radiobiology Research Institute, Uniformed Services University of the Health Sciences, Bethesda, Maryland 20814, United States
| | - Oluseyi O Fatanmi
- Division of Radioprotectants, Department of Pharmacology and Molecular Therapeutics, F. Edward Hébert School of Medicine, Uniformed Services University of the Health Sciences, Bethesda, Maryland 20814, United States
- Armed Forces Radiobiology Research Institute, Uniformed Services University of the Health Sciences, Bethesda, Maryland 20814, United States
| | - Manoj Maniar
- Onconova Therapeutics, Inc., 375 Pheasant Run, Newtown, Pennsylvania 18940, United States
| | - Amrita K Cheema
- Department of Oncology, Lombardi Comprehensive Cancer Center, Georgetown University Medical Center, Washington, District of Columbia 20057, United States
- Department of Biochemistry, Molecular and Cellular Biology, Georgetown University Medical Center, Washington, District of Columbia 20057, United States
| | - Vijay K Singh
- Division of Radioprotectants, Department of Pharmacology and Molecular Therapeutics, F. Edward Hébert School of Medicine, Uniformed Services University of the Health Sciences, Bethesda, Maryland 20814, United States
- Armed Forces Radiobiology Research Institute, Uniformed Services University of the Health Sciences, Bethesda, Maryland 20814, United States
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ALMisned G, Baykal DS, Kilic G, Ilik E, Rabaa E, Susoy G, Zakaly HM, Ene A, Tekin H. Comparative analysis on application conditions of indium (III) oxide-reinforced glasses in nuclear waste management and source transportation: A Monte Carlo simulation study. Heliyon 2023; 9:e14274. [PMID: 36950638 PMCID: PMC10025019 DOI: 10.1016/j.heliyon.2023.e14274] [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: 01/03/2023] [Revised: 02/27/2023] [Accepted: 03/01/2023] [Indexed: 03/09/2023] Open
Abstract
This study's primary objective is to provide the preliminary findings of novel research on the design of Indium (III) oxide-reinforced glass container that were thoroughly developed for the purpose of a nuclear material container for transportation and waste management applications. The shielding characteristics of an Indium (III) oxide-reinforced glass container with a certain elemental composition against the 60Co radioisotope was thoroughly evaluated. The energy deposition in the air surrounding the designed portable glass containers is measured using MCNPX general-purpose Monte Carlo code. Simulation studies were carried out using Lenovo-P620 workstation and the number of tracks was defined as 108 in each simulation phase. According to results, the indium oxide-doped C6 (TZI8) container exhibits superior protective properties compared to other conventional container materials such as 0.5Bitumen-0.5 Cement, Pb Glass composite, Steel-Magnetite concrete. In addition to its superiority in terms of nuclear safety, it is proposed that the source's simultaneous observation and monitoring, as well as the C6 (TZI8) glass structure's transparency, be underlined as significant advantages. High-density glasses, which may replace undesirable materials such as concrete and lead, provide several advantages in terms of production ease, non-toxic properties, and resource monitoring. In conclusion, the use of Indium (III) oxide-reinforced glass with its high transparency and outstanding protection properties may be a substantial choice in places where concrete is required to ensure the safety of nuclear materials.
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Affiliation(s)
- Ghada ALMisned
- Department of Physics, College of Science, Princess Nourah Bint Abdulrahman University, P.O. Box 84428, Riyadh, 11671, Saudi Arabia
| | - Duygu Sen Baykal
- Istanbul Kent University, Vocational School of Health Sciences, Medical Imaging Techniques, Istanbul, 34433, Turkiye
| | - G. Kilic
- Eskisehir Osmangazi University, Faculty of Science, Department of Physics, Eskisehir, 26040, Turkiye
| | - E. Ilik
- Eskisehir Osmangazi University, Faculty of Science, Department of Physics, Eskisehir, 26040, Turkiye
| | - Elaf Rabaa
- Medical Diagnostic Imaging Department, College of Health Sciences, University of Sharjah, Sharjah, 27272, United Arab Emirates
| | - G. Susoy
- Department of Physics, Faculty of Science, Istanbul University, 34134, Istanbul, Turkey
| | - Hesham M.H. Zakaly
- Institute of Physics and Technology, Ural Federal University, 620002, Ekaterinburg, Russia
- Physics Department, Faculty of Science, Al-Azhar University, Assiut, 71524, Egypt
| | - Antoaneta Ene
- INPOLDE Research Center, Department of Chemistry, Physics and Environment, Faculty of Sciences and Environment, Dunarea de Jos University of Galati, 47 Domneasca Street, 800008, Galati, Romania
- Corresponding author. INPOLDE Research Center, Department of Chemistry, Physics and Environment, Faculty of Sciences and Environment, Dunarea de Jos University of Galati, 47 Domneasca Street, 800008, Galati, Romania.
| | - H.O. Tekin
- Medical Diagnostic Imaging Department, College of Health Sciences, University of Sharjah, Sharjah, 27272, United Arab Emirates
- Istinye University, Faculty of Engineering and Natural Sciences, Computer Engineering Department, Istanbul, 34396, Turkiye
- Corresponding author. Medical Diagnostic Imaging Department, College of Health Sciences, University of Sharjah, Sharjah, 27272, United Arab Emirates.
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Jiao Y, Xu J, Song B, Wu A, Pan L, Xu Y, Geng F, Li X, Zhao C, Hong M, Meng X, Luo J, Liu P, Li M, Zhu W, Cao J, Zhang S. Interferon regulatory factor 1-triggered free ubiquitin protects the intestines against radiation-induced injury via CXCR4/FGF2 signaling. MedComm (Beijing) 2022; 3:e168. [PMID: 36051984 PMCID: PMC9416916 DOI: 10.1002/mco2.168] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2022] [Revised: 07/18/2022] [Accepted: 07/22/2022] [Indexed: 11/25/2022] Open
Abstract
Radiation-induced intestinal injury is a serious concern during abdominal and pelvic cancers radiotherapy. Ubiquitin (Ub) is a highly conserved protein found in all eukaryotic cells. This study aims to explore the role and mechanism of free Ub against radiogenic intestinal injury. We found that free Ub levels of irradiated animals and human patients receiving radiotherapy were upregulated. Radiation-induced Ub expression was associated with the activation of interferon regulatory factor 1 (IRF1). Intraperitoneal injection of free Ub significantly reduced the mortality of mice following 5-9 Gy total body irradiation (TBI) through the Akt pathway. Free Ub facilitates small intestinal regeneration induced by TBI or abdominal irradiation. At the cellular level, free Ub or its mutants significantly alleviated cell death and enhanced the survival of irradiated intestinal epithelial cells. The radioprotective role of free Ub depends on its receptor CXCR4. Mechanistically, free Ub increased fibroblast growth factor-2 (FGF2) secretion and consequently activated FGFR1 signaling following radiation in vivo and in vivo. Thus, free Ub confers protection against radiation-induced intestinal injury through CXCR4/Akt/FGF2 axis, which provides a novel therapeutic option.
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Affiliation(s)
- Yang Jiao
- School of Radiation Medicine and ProtectionMedical College of Soochow UniversitySuzhouChina
- State Key Laboratory of Radiation Medicine and Protection and Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education InstitutionsSoochow UniversitySuzhouChina
| | - Jing Xu
- School of Radiation Medicine and ProtectionMedical College of Soochow UniversitySuzhouChina
- State Key Laboratory of Radiation Medicine and Protection and Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education InstitutionsSoochow UniversitySuzhouChina
| | - Bin Song
- Laboratory of Radiation MedicineWest China Second University HospitalSichuan UniversityChengduChina
| | - Ailing Wu
- Second Affiliated Hospital of Chengdu Medical CollegeChina National Nuclear Corporation 416 HospitalChengduChina
| | - Lu Pan
- School of Radiation Medicine and ProtectionMedical College of Soochow UniversitySuzhouChina
- State Key Laboratory of Radiation Medicine and Protection and Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education InstitutionsSoochow UniversitySuzhouChina
| | - Ying Xu
- School of Radiation Medicine and ProtectionMedical College of Soochow UniversitySuzhouChina
- State Key Laboratory of Radiation Medicine and Protection and Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education InstitutionsSoochow UniversitySuzhouChina
| | - Fenghao Geng
- Second Affiliated Hospital of Chengdu Medical CollegeChina National Nuclear Corporation 416 HospitalChengduChina
| | - Xiaoqian Li
- West China School of Basic Medical Sciences & Forensic MedicineSichuan UniversityChengduChina
| | - Congzhao Zhao
- School of Radiation Medicine and ProtectionMedical College of Soochow UniversitySuzhouChina
- State Key Laboratory of Radiation Medicine and Protection and Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education InstitutionsSoochow UniversitySuzhouChina
| | - Min Hong
- School of Radiation Medicine and ProtectionMedical College of Soochow UniversitySuzhouChina
- State Key Laboratory of Radiation Medicine and Protection and Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education InstitutionsSoochow UniversitySuzhouChina
| | - Xuanyu Meng
- School of Radiation Medicine and ProtectionMedical College of Soochow UniversitySuzhouChina
- State Key Laboratory of Radiation Medicine and Protection and Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education InstitutionsSoochow UniversitySuzhouChina
| | - Judong Luo
- Department of OncologyThe Affiliated Changzhou No. 2 People's Hospital of Nanjing Medical UniversityChangzhouChina
| | - Pengfei Liu
- School of Radiation Medicine and ProtectionMedical College of Soochow UniversitySuzhouChina
| | - Ming Li
- School of Radiation Medicine and ProtectionMedical College of Soochow UniversitySuzhouChina
- State Key Laboratory of Radiation Medicine and Protection and Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education InstitutionsSoochow UniversitySuzhouChina
| | - Wei Zhu
- School of Radiation Medicine and ProtectionMedical College of Soochow UniversitySuzhouChina
- State Key Laboratory of Radiation Medicine and Protection and Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education InstitutionsSoochow UniversitySuzhouChina
| | - Jianping Cao
- School of Radiation Medicine and ProtectionMedical College of Soochow UniversitySuzhouChina
- State Key Laboratory of Radiation Medicine and Protection and Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education InstitutionsSoochow UniversitySuzhouChina
| | - Shuyu Zhang
- Laboratory of Radiation MedicineWest China Second University HospitalSichuan UniversityChengduChina
- Second Affiliated Hospital of Chengdu Medical CollegeChina National Nuclear Corporation 416 HospitalChengduChina
- West China School of Basic Medical Sciences & Forensic MedicineSichuan UniversityChengduChina
- Department of OncologyThe Affiliated Changzhou No. 2 People's Hospital of Nanjing Medical UniversityChangzhouChina
- NHC Key Laboratory of Nuclear Technology Medical Transformation, Mianyang Central HospitalMianyangChina
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4
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Deng X, Zou G, Tu B, Hu M, Zhu W, He R, Chen T. Efficient photoreduction of hexavalent uranium over defective ZnO nanoparticles by oxygen defect engineering. CrystEngComm 2022. [DOI: 10.1039/d2ce00892k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The oxygen-defect engineering of ZnO-400 nanosheets to enhance their photocatalytic performance for U(vi) reduction.
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Affiliation(s)
- Xiaochuan Deng
- State Key Laboratory of Environment-friendly Energy Materials, National Co-innovation Center for Nuclear Waste Disposal Environmental Safety, Sichuan Co-Innovation Center for New Energetic Materials, Nuclear Waste and Environmental Safety Key Laboratory of Defense, School of National Defence Science & Technology, Southwest University of Science and Technology, Mianyang 621010, China
| | - Geng Zou
- State Key Laboratory of Environment-friendly Energy Materials, National Co-innovation Center for Nuclear Waste Disposal Environmental Safety, Sichuan Co-Innovation Center for New Energetic Materials, Nuclear Waste and Environmental Safety Key Laboratory of Defense, School of National Defence Science & Technology, Southwest University of Science and Technology, Mianyang 621010, China
| | - Boyuan Tu
- State Key Laboratory of Environment-friendly Energy Materials, National Co-innovation Center for Nuclear Waste Disposal Environmental Safety, Sichuan Co-Innovation Center for New Energetic Materials, Nuclear Waste and Environmental Safety Key Laboratory of Defense, School of National Defence Science & Technology, Southwest University of Science and Technology, Mianyang 621010, China
- School of Mathematics and Physics, Southwest University of Science and Technology, Mianyang 621010, Sichuan, China
| | - Mingfang Hu
- School of Life Science and Engineering, Southwest University of Science and Technology, Mianyang 621010, Sichuan, China
| | - Wenkun Zhu
- State Key Laboratory of Environment-friendly Energy Materials, National Co-innovation Center for Nuclear Waste Disposal Environmental Safety, Sichuan Co-Innovation Center for New Energetic Materials, Nuclear Waste and Environmental Safety Key Laboratory of Defense, School of National Defence Science & Technology, Southwest University of Science and Technology, Mianyang 621010, China
| | - Rong He
- State Key Laboratory of Environment-friendly Energy Materials, National Co-innovation Center for Nuclear Waste Disposal Environmental Safety, Sichuan Co-Innovation Center for New Energetic Materials, Nuclear Waste and Environmental Safety Key Laboratory of Defense, School of National Defence Science & Technology, Southwest University of Science and Technology, Mianyang 621010, China
| | - Tao Chen
- State Key Laboratory of Environment-friendly Energy Materials, National Co-innovation Center for Nuclear Waste Disposal Environmental Safety, Sichuan Co-Innovation Center for New Energetic Materials, Nuclear Waste and Environmental Safety Key Laboratory of Defense, School of National Defence Science & Technology, Southwest University of Science and Technology, Mianyang 621010, China
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Voicu V, Jiquidi M, Mircioiu C, Sandulovici R, Nicolescu A. Experimental Evaluation of 65Zn Decorporation Kinetics Following Rapid and Delayed Zn-DTPA Interventions in Rats. Biphasic Compartmental and Square-Root Law Mathematical Modeling. Pharmaceutics 2021; 13:1830. [PMID: 34834245 PMCID: PMC8623132 DOI: 10.3390/pharmaceutics13111830] [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: 10/10/2021] [Revised: 10/28/2021] [Accepted: 10/29/2021] [Indexed: 11/16/2022] Open
Abstract
The decorporation kinetics of internal radionuclide contamination is a long-term treatment raising modeling, planning, and managing problems, especially in the case of late intervention when the radiotoxic penetrated the deep compartments. The decorporation effectiveness of the highly radiotoxic 65ZnCl2 by Zn-DTPA (dosed at 3.32 mg and 5 mg/0.25 mL/100 g body weight) was investigated in Wistar male rats over a ten-day period under various treatments (i.e., as a single dose before contamination; as a single dose before and 24 h after contamination; and as daily administrations for five consecutive days starting on day 12 after contamination). The radioactivity was measured using the whole-body counting method. Mono- and bi-compartmental decorporation kinetics models proved applicable in the case of a rapid intervention. It was found that a diffusion model of the radionuclide from tissues to blood better describes the decorporation kinetics after more than ten days post treatment, and the process has been mathematically modeled as a diffusion from an infinite reservoir to a semi-finite medium. The mathematical solution led to a square-root law for describing the 65Zn decorporation. This law predicts a slower release than exponential or multiexponential equations, and could better explain the very long persistence of radionuclides in the living body. Splitting data and modeling in two steps allows a better understanding, description and prediction of the evolution of contamination, a separate approach to the treatment schemes of acute and chronic contamination.
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Affiliation(s)
- Victor Voicu
- Department of Clinical Pharmacology and Toxicology, Faculty of Medicine, Carol Davila University of Medicine and Pharmacy, 050477 Bucharest, Romania;
| | - Marilena Jiquidi
- Army Center for Medical Research, 021051 Bucharest, Romania;
- Laboratory of Radiobiology, Fundeni Clinical Institute, 022328 Bucharest, Romania
| | - Constantin Mircioiu
- Faculty of Pharmacy, Carol Davila University of Medicine and Pharmacy, 020956 Bucharest, Romania
| | - Roxana Sandulovici
- Faculty of Pharmacy, Titu Maiorescu University, 040441 Bucharest, Romania
| | - Adrian Nicolescu
- Department of Medicine, Queen’s University, Kingston, ON K7L 3N6, Canada;
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Singh VK, Seed TM. BIO 300: a promising radiation countermeasure under advanced development for acute radiation syndrome and the delayed effects of acute radiation exposure. Expert Opin Investig Drugs 2021; 29:429-441. [PMID: 32450051 DOI: 10.1080/13543784.2020.1757648] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
INTRODUCTION There are no radioprotectors currently approved by the United States Food and Drug Administration (US FDA) for either the hematopoietic acute radiation syndrome (H-ARS) or for the acute radiation gastrointestinal syndrome (GI-ARS). There are currently, however, three US FDA-approved medicinals that serve to mitigate acute irradiation-associated hematopoietic injury. AREA COVERED We present the current status of a promising radiation countermeasure, BIO 300 (a genistein-based agent), that has been extensively investigated in murine models of H-ARS and models of the delayed effects of acute radiation exposure (DEARE) and is currently being evaluated in large animal models. It is also being developed for the prevention of radiation-induced toxicities associated with solid tumor radiotherapy and is the subject of two active Investigational New Drug (IND) applications. We have included a listing and brief review of significant investigations of this promising medical countermeasure. EXPERT OPINION BIO 300 is a leading radioprotector under advanced development for H-ARS and DEARE, as well as for select oncologic indication(s). Efficacy following oral administration (po), lack of clinical side effects, storage at ambient temperature, and intended dual use makes BIO 300 an ideal candidate for military and civilian use as well as for storage in the Strategic National Stockpile.
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Affiliation(s)
- Vijay K Singh
- Division of Radioprotectants, Department of Pharmacology and Molecular Therapeutics, F. Edward Hébert School of Medicine, Uniformed Services University of the Health Sciences , Bethesda, MD, USA.,Armed Forces Radiobiology Research Institute, Uniformed Services University of the Health Sciences , Bethesda, MD, USA
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Hu C, Huang Q, Zhai Y. Thermal, mechanical investigation and neutron shielding analysis for Gd-MOF/polyimide materials. RSC Adv 2021; 11:40148-40158. [PMID: 35424325 PMCID: PMC8693875 DOI: 10.1039/d1ra07500d] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2021] [Accepted: 12/12/2021] [Indexed: 12/02/2022] Open
Abstract
None of the currently commercialized shielding materials in Generation IV nuclear energy systems are satisfactory in their performance. Developing a candidate neutron shielding material with good heat resistance and high strength is a challenging task. In this work, various gadolinium metal–organic frameworks (Gd-MOFs) with obvious advantages, such as porous structures, organic surfaces and strong neutron-absorbing nuclei, were synthesized to constrain polyimide (PI) chains. A series of Gd-MOF/PI conjugates were subsequently assessed for their thermal stability, mechanical properties and neutron shielding performance. The increase of the Gd-MOF content improved the thermal neutron shielding ability but slightly reduced the fast neutron shielding ability. Compared with those of pure PI, the Gd-MOF/PI films demonstrate a higher glass transition temperature (Tg), which is considered the gold standard of engineering plastics. It was also observed that the tensile strength directly correlates with the Gd-MOF content, which continuously increases until a maximum is reached, and then subsequently decreases. Furthermore, the high-temperature tensile test showed that these tunable Gd-MOF/PI films are intact and robust, indicating their potential application for neutron shielding materials in Generation IV nuclear energy systems. None of the currently commercialized shielding materials in Generation IV nuclear energy systems are satisfactory in their performance.![]()
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Affiliation(s)
- Chen Hu
- Institute of Nuclear Energy Safety Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, Anhui, 230031, China
- University of Science and Technology of China, Hefei, Anhui, 230027, China
| | - Qunying Huang
- Institute of Nuclear Energy Safety Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, Anhui, 230031, China
| | - Yutao Zhai
- Institute of Nuclear Energy Safety Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, Anhui, 230031, China
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Masten AS. Resilience of children in disasters: A multisystem perspective. INTERNATIONAL JOURNAL OF PSYCHOLOGY 2020; 56:1-11. [PMID: 33325580 DOI: 10.1002/ijop.12737] [Citation(s) in RCA: 46] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2020] [Accepted: 12/05/2020] [Indexed: 12/16/2022]
Abstract
Interest in resilience is surging in research, policy and practice as threats from disasters rise and humanity confronts a global pandemic. This commentary highlights the importance of defining resilience for portability across system levels and disciplines in order to integrate knowledge and prepare adequately for the challenges posed to children and youth by multisystem disasters. A scalable definition of resilience is recommended: The capacity of a dynamic system to adapt successfully to challenges that threaten the function, survival or development of the system. Major determinants of adaptation among young people in the context of disaster are highlighted, including variations in adversity exposure dose, developmental timing, individual differences and the socio-ecological systems of children's lives that can be mobilised in response. Adaptation of children in disasters depends on the resilience of interconnected systems, including families, schools, communities and policy sectors. Implications of a multisystem perspective for disaster risk reduction and preparedness are discussed with a focus on nurturing the resilience of children and their societies for challenges in the near term and long into the future.
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Affiliation(s)
- Ann S Masten
- University of Minnesota Twin Cities, Institute of Child Development, Minneapolis, MN, 55455, USA
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Shuryak I, Ghandhi SA, Turner HC, Weber W, Melo D, Amundson SA, Brenner DJ. Dose and Dose-Rate Effects in a Mouse Model of Internal Exposure from 137Cs. Part 2: Integration of Gamma-H2AX and Gene Expression Biomarkers for Retrospective Radiation Biodosimetry. Radiat Res 2020; 196:491-500. [PMID: 33064820 PMCID: PMC8944909 DOI: 10.1667/rade-20-00042.1] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2020] [Accepted: 08/13/2020] [Indexed: 11/03/2022]
Abstract
Inhalation and ingestion of 137Cs and other long-lived radionuclides can occur after large-scale accidental or malicious radioactive contamination incidents, resulting in a complex temporal pattern of radiation dose/dose rate, influenced by radionuclide pharmacokinetics and chemical properties. High-throughput radiation biodosimetry techniques for such internal exposure are needed to assess potential risks of short-term toxicity and delayed effects (e.g., carcinogenesis) for exposed individuals. Previously, we used γ-H2AX to reconstruct injected 137Cs activity in experimentally-exposed mice, and converted activity values into radiation doses based on time since injection and 137Cs-elimination kinetics. In the current study, we sought to assess the feasibility and possible advantages of combining γ-H2AX with transcriptomics to improve 137Cs activity reconstructions. We selected five genes (Atf5, Hist2h2aa2, Olfr358, Psrc1, Hist2h2ac) with strong statistically-significant Spearman's correlations with injected activity and stable expression over time after 137Cs injection. The geometric mean of log-transformed signals of these five genes, combined with γ-H2AX fluorescence, were used as predictors in a nonlinear model for reconstructing injected 137Cs activity. The coefficient of determination (R2) comparing actual and reconstructed activities was 0.91 and root mean squared error (RMSE) was 0.95 MBq. These metrics remained stable when the model was fitted to a randomly-selected half of the data and tested on the other half, repeated 100 times. Model performance was significantly better when compared to our previous analysis using γ-H2AX alone, and when compared to an analysis where genes are used without γ-H2AX, suggesting that integrating γ-H2AX with gene expression provides an important advantage. Our findings show a proof of principle that integration of radiation-responsive biomarkers from different fields is promising for radiation biodosimetry of internal emitters.
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Affiliation(s)
- Igor Shuryak
- Center for Radiological Research, Columbia University Irving Medical Center, New York, New York 10032
| | - Shanaz A. Ghandhi
- Center for Radiological Research, Columbia University Irving Medical Center, New York, New York 10032
| | - Helen C. Turner
- Center for Radiological Research, Columbia University Irving Medical Center, New York, New York 10032
| | - Waylon Weber
- Lovelace Biomedical, Albuquerque, New Mexico, 87108
| | | | - Sally A. Amundson
- Center for Radiological Research, Columbia University Irving Medical Center, New York, New York 10032
| | - David J. Brenner
- Center for Radiological Research, Columbia University Irving Medical Center, New York, New York 10032
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Salman K, Wagieh S, Bakhsh A, Al-Monshy T, Talaat O, Al-Malki M, Al-Ezzi M, Fouda A, Hamid G. Measurement of cumulative radiation exposure to children and adolescents in contact with outpatients treated with low dose radioactive iodine ( 131I). J Egypt Natl Canc Inst 2020; 32:2. [PMID: 32372394 DOI: 10.1186/s43046-019-0013-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2019] [Accepted: 12/19/2019] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Radiation exposure from patients treated with radioactive iodine (131I) represents a radiation hazard to children and adolescents, representing the most vulnerable group of household contacts. Our aim was to calculate the cumulative radiation exposure (CRE) figures to children and adolescents sharing the same home with outpatients treated with low-dose 131I. The secondary aim was to study the demographic and educational factors that may significantly affect radiation exposure to them. RESULTS The whole number of household contacts less than 18 years was 99, out of them 49 ≤ 12 years. CRE level to children and adolescents ranged from 79 to 934 uSv. The mean, median, and 75th percentile figures were 284 ± 178 uSv, 215 uSv, and 334 uSv, respectively. The compliance of this group of contacts to radiation exposure constraint (1 mSv) was 100%. All CRE values were below this figure with 75% of them below half of this constraint. Thirteen adolescents from 12 to 18 years and 17 mothers of 23 household contacts ≤ 12 years got radiation safety instructions (RSI) directly from a radiation safety officer (RSO). This group had a significantly lower mean CRE value (184 ± 93 uSv) compared to those who got RSI from the patient or from other family members (298 ± 185 uSv) with a significant p value. CONCLUSION The compliance of adolescents and children to the 1-mSv radiation exposure constraint is 100%. It is advised for adolescents and mothers of children in contact with 131I-treated patients to get direct RSI from the RSO, which is the only factor associated with significantly lower radiation exposure figures.
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Affiliation(s)
- Khaled Salman
- King Abdullah Medical City (KAMC), Makkah, Saudi Arabia
| | - Shereen Wagieh
- King Abdullah Medical City (KAMC), Jeddah Oncology Centre, Jeddah, Saudi Arabia.
| | - Aquib Bakhsh
- King Abdullah Medical City (KAMC), Makkah, Saudi Arabia
| | | | | | | | - Manal Al-Ezzi
- King Abdullah Medical City (KAMC), Makkah, Saudi Arabia
| | - Ashraf Fouda
- King Abdullah Medical City (KAMC), Jeddah Oncology Centre, Jeddah, Saudi Arabia
| | - Gihad Hamid
- King Abdullah Medical City (KAMC), Jeddah Oncology Centre, Jeddah, Saudi Arabia
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Zheng K, He C, Nour HF, Zhang Z, Yuan T, Traboulsi H, Mazher J, Trabolsi A, Fang L, Olson MA. Augmented polyhydrazone formation in water by template-assisted polymerization using dual-purpose supramolecular templates. Polym Chem 2020. [DOI: 10.1039/c9py01476d] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
Template-assisted polymerization using donor–acceptor supramolecular templates results in higher Mw and Mn values, decreased critical hydrogelation concentrations, and increased gel recovery velocity following shear-induced breakdown.
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Rabou MAA, Naga NAAE, Eid FA. Effect of Transplanted Bone Marrow on Kidney Tissue of γ-Irradiated Pregnant Rats and Their Fetuses. Pak J Biol Sci 2020; 23:92-102. [PMID: 31930887 DOI: 10.3923/pjbs.2020.92.102] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
BACKGROUND AND OBJECTIVES The damaging effects of ionizing radiation lead to cell death. The present study was performed to assess the possible ameliorating effects of bone marrow transplantation (BMT) on the histopathological and histochemical changes in the kidney tissue of γ-irradiated pregnant rats and their fetuses. MATERIALS AND METHODS Pregnant rats were divided into 5 sets (6 females in each set): Group C (untreated pregnant rats), group R7 (pregnant rats exposed to 2Gy of γ-rays on the 7th day of pregnancy), group R7+BM (pregnant rats exposed to 2Gy of γ-rays on the 7th day of pregnancy then injected by freshly BMT (75×106±5 cells) intra peritoneally after 1 h of irradiation, group R14 (pregnant rats exposed to 2Gy of γ-rays on the 14th day of pregnancy), group R14+BM (pregnant rats exposed to 2Gy γ-rays on the 14th day of pregnancy and after 1 h received 1 dose of BMT). All pregnant rats were sacrificed on the 20th day of pregnancy and kidney samples of pregnant rats and their fetuses were removed for histopathological and histochemical studies. RESULTS Gamma rays caused many histological and histochemical deviations in the kidney tissue of mothers and their fetuses on day 7 or 14 of gestation, but bone marrow transplantation highly improved the damage were occurred due to γ-rays. CONCLUSION Bone marrow transplantation has the ability to decrease the injury of gamma rays.
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Ferrari SM, Centanni M, Virili C, Miccoli M, Ferrari P, Ruffilli I, Ragusa F, Antonelli A, Fallahi P. Sunitinib in the Treatment of Thyroid Cancer. Curr Med Chem 2019; 26:963-972. [PMID: 28990511 DOI: 10.2174/0929867324666171006165942] [Citation(s) in RCA: 52] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2017] [Revised: 07/17/2017] [Accepted: 08/09/2017] [Indexed: 12/29/2022]
Abstract
BACKGROUND Sunitinib (SU11248) is an oral multi-target tyrosine kinase inhibitor (TKI) with low molecular weight, that inhibits platelet-derived growth factor receptors (PDGF-Rs) and vascular endothelial growth factor receptors (VEGFRs), c-KIT, fms-related tyrosine kinase 3 (FLT3) and RET. The concurrent inhibition of these pathways reduces tumor vascularization and causes cancer cell apoptosis, inducing a tumor shrinkage. Sunitinib is approved for the treatment of imatinib-resistant gastrointestinal stromal tumor (GIST), renal carcinoma, and pancreatic neuroendocrine tumors. METHODS We searched the literature on PubMed library. RESULTS In vitro studies showed that sunitinib targeted the cytosolic MEK/ERK and SAPK/JNK pathways in the RET/PTC1 cell inhibiting cell proliferation and causing stimulation of sodium/iodide symporter (NIS) gene expression in RET/PTC1 cells. Furthermore sunitinib is active in vitro and in vivo against anaplastic thyroid cancer (ATC) cells. Most of the clinical studies report that sunitinib is effective as first- and second-line TKI therapy in patients with advanced dedifferentiated thyroid cancer (DeTC), or medullary thyroid cancer (MTC). Sunitinib 37.5 mg/day is well tolerated, and effective. The most common adverse events include: reduction in blood cell counts (in particular leukocytes), hand-foot skin reaction, diarrhea, fatigue, nausea, hypertension, and musculoskeletal pain. CONCLUSION Even if sunitinib is promising in the therapy of differentiated thyroid carcinoma (DTC), until now no phase III studies have been published, and additional prospective researches are necessary in order to evaluate the real efficacy of sunitinib in aggressive thyroid cancer.
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Affiliation(s)
- Silvia Martina Ferrari
- Department of Clinical and Experimental Medicine, University of Pisa, Via Savi, 10, I-56126, Pisa, Italy
| | - Marco Centanni
- Department of Medico-Surgical Sciences and Biotechnologies, "Sapienza" University of Rome, Latina, Italy
| | - Camilla Virili
- Department of Medico-Surgical Sciences and Biotechnologies, "Sapienza" University of Rome, Latina, Italy
| | - Mario Miccoli
- Department of Clinical and Experimental Medicine, University of Pisa, Via Savi, 10, I-56126, Pisa, Italy
| | - Paola Ferrari
- Department of Oncology, University of Pisa, Pisa, Italy
| | - Ilaria Ruffilli
- Department of Clinical and Experimental Medicine, University of Pisa, Via Savi, 10, I-56126, Pisa, Italy
| | - Francesca Ragusa
- Department of Clinical and Experimental Medicine, University of Pisa, Via Savi, 10, I-56126, Pisa, Italy
| | - Alessandro Antonelli
- Department of Clinical and Experimental Medicine, University of Pisa, Via Savi, 10, I-56126, Pisa, Italy
| | - Poupak Fallahi
- Department of Clinical and Experimental Medicine, University of Pisa, Via Savi, 10, I-56126, Pisa, Italy
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Sokolenko VL, Sokolenko SV. Interdependence of oxidative/antioxidant system indicators and thyroid status under conditions of prolonged exposure to small doses of radiation. REGULATORY MECHANISMS IN BIOSYSTEMS 2019. [DOI: 10.15421/021933] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
We have studied the interdependence of the intensity of oxidative processes/antioxidant level and the thyroid status parameters in a group of students aged 18–24 who lived for a long time in the territory of enhanced radioecological control (density of soil contamination by isotopes (137Cs 3.7 ∙ 104 – 18.5 ∙ 104 Bq/m2). We examined 50 people from relatively environmentally friendly areas (control group) and 50 people from IV radiation zone (experimental group). In the experimental group, there were no individuals with clinical manifestations of thyroid pathology. However, subgroups with signs of hyperthyroidism and hypothyroidism were identified. We evaluated the level of cortisol, thyrotrophic hormone (TSH), triiodothyronine (T3), thyroxine (T4), malonic dialdehyde (MDA), ceruloplasmin (CP), transferrin (Tf), sulfhydryl groups (SH); we calculated the oxidative stress index (OSI). The research was conducted one month before the examination time and also during the exams as a factor in increased emotional stress. A lowered CP level was found in the subgroup with signs of hypothyroidism; SH groups – in all subgroups, separated by thyroid status. The oxidative stress index was higher in all students examined of the experimental group, compared with the control. The growth of MDA level is marked in the experimental group – it is the most strongly pronounced in conditions of additional emotional load in people with signs of hyperthyroidism and hypothyroidism. CP level significantly decreased in the subgroup of hyperthyroidism on the background of T3 decrease. OSI increased in all students examined from the experimental group. In the subgroup of hypothyroidism it became significantly higher than in the subgroup of euthyroidism. A positive correlation between the levels of CP and T3 was found. The highest values of the correlation coefficients were noted for subgroups with signs of hyperthyroidism and hypothyroidism, with the coefficient significance increasing under conditions of emotional stress. The index of oxidative stress in the experimental group positively correlated with the level of TSH – in terms of emotional stress, the statistical significance of the coefficients disappeared. In the subgroups divided by thyroid status, variability of interactions between OSI and T3 was observed but it was not statistically significant. It was found that the participation of thyroid status in supporting redox homeostasis in people aged 18–24 who suffered from chronic small-doze radiation exposure was realized mainly by the influence on the antioxidant system. The ability of thyroid hormones to maintain a proper antioxidant state was suppressed in this group. The unbalanced relationship between thyroid hormones and oxidative stress indicators is strongly manifested under conditions of additional emotional stress.
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Zhukova E. Nuclear disaster as chronic crisis: Accounts of radiation embodiment by survivors of the Chernobyl nuclear disaster from Belarus born before, in and after 1986. Health (London) 2019; 24:589-605. [PMID: 30755050 DOI: 10.1177/1363459319829190] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
This article looks at chronic crisis on an empirical example of radiation embodiment by survivors of a nuclear disaster. Developing further the work of Henrik Vigh, this article argues that chronic crisis is conflictual in nature, where some individuals fully embrace it, while others reject it. A total of 16 in-depth interviews were conducted with survivors of the Chernobyl nuclear disaster from Belarus who were below 18 years in 1986 and born in or after 1986. It is shown that survivors do not consider themselves affected, when they argue against social stigma imposed by others and when development discourse in relation to post-communist health care is used as a background against which nuclear victimhood can be argued. It is also demonstrated that survivors do consider themselves affected, when they embrace disaster temporality and victimhood and argue against narrow scientific definitions of victimhood which downplay a variety of health conditions attributed to the disaster. This article concludes that chronic crisis may not always be transformative, but reproduce the existing inequalities. It contributes to the anthropology of disaster and the anthropology of suffering by bringing together scholarship in feminist theory of disability and critical perspectives on development.
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16
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Responses to Children’s Mental Health Needs Following the Chernobyl Disaster. INTEGRATING PSYCHIATRY AND PRIMARY CARE 2019. [DOI: 10.1007/978-3-030-15872-9_10] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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17
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Kunii N, Fujimura MS, Komasa Y, Kitamura A, Sato H, Takatsuji T, Jimba M, Kimura S. The Knowledge and Awareness for Radiocesium Food Monitoring after the Fukushima Daiichi Nuclear Accident in Nihonmatsu City, Fukushima Prefecture. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2018; 15:ijerph15102289. [PMID: 30340414 PMCID: PMC6210092 DOI: 10.3390/ijerph15102289] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/31/2018] [Revised: 09/30/2018] [Accepted: 10/12/2018] [Indexed: 11/17/2022]
Abstract
On 11 March 2011, Japan experienced a massive earthquake and tsunami that triggered the Fukushima Daiichi Nuclear Power Plant (FDNPP) accident, resulting in the release of large amounts of cesium-134 and -137 into the atmosphere. In addition to the food radioactivity control in the markets throughout the country, radiocesium concentrations in locally grown foods were voluntarily inspected and the results were shown to the residents by the local government to raise their awareness of the internal radiation contamination risk from low knowledge in Nihonmatsu City, Fukushima Prefecture. In this longitudinal study, local food products for in-home consumption were evaluated by seven different food radioactivity measuring devices in Nihonmatsu City from 2011–2017. Radiocesium was detected in local foods in Nihonmatsu City even six years after the FDNPP accident. The highest number of products tested was in 2012, with the number steadily decreasing thereafter. Most foods had contamination levels that were within the provisional regulation limits. As edible wild plants and mushrooms continue to possess high radiocesium concentrations, new trends in radioactivity in foods like seeds were discovered. This study highlights that the increased risk of radiation exposure could possibly be due to declining radiation awareness among citizens and food distributors. We recommend the continuation of food monitoring procedures at various points in the food processing line under the responsibility of the government to raise awareness for the reduction of future risks of internal exposure.
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Affiliation(s)
- Nobuaki Kunii
- Laboratory of International Epidemiology, Fukushima Branch Office, Center for International Cooperation, Dokkyo Medical University, Tochigi 321-0293, Japan.
| | - Maya Sophia Fujimura
- Department of Community and Global Health, Graduate School of Medicine, The University of Tokyo, Tokyo 113-0033, Japan.
| | - Yukako Komasa
- Laboratory of International Epidemiology, Fukushima Branch Office, Center for International Cooperation, Dokkyo Medical University, Tochigi 321-0293, Japan.
| | - Akiko Kitamura
- Department of Community and Global Health, Graduate School of Medicine, The University of Tokyo, Tokyo 113-0033, Japan.
| | - Hitoshi Sato
- Department of Radiological Sciences, Ibaraki Prefectural University of Health Sciences, Ibaraki 300-0394, Japan.
| | - Toshihiro Takatsuji
- Graduate School of Fisheries and Environmental Sciences, Nagasaki University, Nagasaki 852-8521, Japan.
| | - Masamine Jimba
- Department of Community and Global Health, Graduate School of Medicine, The University of Tokyo, Tokyo 113-0033, Japan.
| | - Shinzo Kimura
- Laboratory of International Epidemiology, Fukushima Branch Office, Center for International Cooperation, Dokkyo Medical University, Tochigi 321-0293, Japan.
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Jourdain JR, Landon G, Clero E, Doroshchenko V, Silenok A, Kurnosova I, Butsenin A, Denjoy I, Franck D, Heuze JP, Gourmelon P. Is exposure to ionising radiation associated with childhood cardiac arrhythmia in the Russian territories contaminated by the Chernobyl fallout? A cross-sectional population-based study. BMJ Open 2018; 8:e019031. [PMID: 29581199 PMCID: PMC5875654 DOI: 10.1136/bmjopen-2017-019031] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/08/2017] [Revised: 02/22/2018] [Accepted: 03/05/2018] [Indexed: 12/29/2022] Open
Abstract
OBJECTIVE To investigate childhood cardiac arrhythmia and chronic exposure to caesium-137 (137Cs) resulting from the Chernobyl accident. DESIGN Prospective cross-sectional study using exposed/unexposed design conducted in the Bryansk region from May 2009 to May 2013 on children selected on the basis of 137Cs soil deposition: control territories ([137Cs]<37 kBq per square metre, where children were considered as unexposed) and contaminated territories ([137Cs]>555 kBq per square metre, where children were considered as exposed). SETTING Russian territories affected by the Chernobyl fallout (Bryansk region). PARTICIPANTS This cross-sectional study included 18 152 children aged 2-18 years and living in the Bryansk region (Russia). MAIN OUTCOME MEASURES All children received three medical examinations (ECG, echocardiography and 137Cs whole-body activity measurement) and some of them were given with a 24-hour Holter monitoring and blood tests. RESULTS Cardiac arrhythmia was diagnosed in 1172 children living in contaminated territories and 1354 children living in control territories. The crude prevalence estimated to 13.3% in contaminated territories was significantly lower than in control territories with 15.2% over the period 2009-2013 (P<0.001). Considering 137Cs whole-body burden as exposure, cardiac arrhythmia was found in 449 contaminated children and 2077 uncontaminated children, corresponding to an estimated crude prevalence of 14.5% and 14.2%, respectively, which does not differ significantly (P=0.74). Also, we investigated the association between territory, exposure to 137Cs and cardiac arrhythmia: the adjusted OR was not significant (0.90 with 95% CI 0.81 to 1.00; P=0.06) for the territory. For 137Cs whole-body burden, the ORs close to 1 did not reach statistical significance (P for trend=0.97). CONCLUSION This study does not observe an association between cardiac arrhythmia and 137Cs deposition levels in the Bryansk region exposed to Chernobyl fallout. The suspected increase of cardiac arrhythmia in children exposed to Chernobyl fallout is not confirmed.
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Affiliation(s)
- Jean-Rene Jourdain
- Division of Radiological Protection and Health, Institut de Radioprotection et de Sûreté Nucléaire (IRSN), Fontenay-aux-Roses, France
| | - Geraldine Landon
- Division of Radiological Protection and Health, Institut de Radioprotection et de Sûreté Nucléaire (IRSN), Fontenay-aux-Roses, France
| | - Enora Clero
- Division of Radiological Protection and Health, Institut de Radioprotection et de Sûreté Nucléaire (IRSN), Fontenay-aux-Roses, France
| | | | - Aleksandr Silenok
- Department of Cardiology, Bryansk Diagnostic Center, Bryansk, Russia
| | - Irina Kurnosova
- Department of Cardiology, Bryansk Diagnostic Center, Bryansk, Russia
| | - Andrei Butsenin
- Department of Cardiology, Bryansk Diagnostic Center, Bryansk, Russia
| | - Isabelle Denjoy
- Department of Cardiology, Bichat Hospital (AP-HP), Paris, France
| | - Didier Franck
- Division of Radiological Protection and Health, Institut de Radioprotection et de Sûreté Nucléaire (IRSN), Fontenay-aux-Roses, France
| | - Jean-Pierre Heuze
- Division of Radiological Protection and Health, Institut de Radioprotection et de Sûreté Nucléaire (IRSN), Fontenay-aux-Roses, France
| | - Patrick Gourmelon
- Division of Radiological Protection and Health, Institut de Radioprotection et de Sûreté Nucléaire (IRSN), Fontenay-aux-Roses, France
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Fujimura MS, Komasa Y, Kimura S, Shibanuma A, Kitamura A, Jimba M. Roles of children and their parents in the reduction of radiation risk after the 2011 Fukushima Daiichi Nuclear Power Plant accident. PLoS One 2017; 12:e0188906. [PMID: 29236725 PMCID: PMC5728498 DOI: 10.1371/journal.pone.0188906] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2017] [Accepted: 11/15/2017] [Indexed: 11/19/2022] Open
Abstract
Introduction On March 11, 2011, Japan experienced its largest recorded earthquake with a magnitude of 9.0. The resulting tsunami caused massive damage to the Fukushima Daiichi Nuclear Power Plant reactors, and the surrounding environment was contaminated with radioactive materials. During this period, some residents were exposed to high levels of radiation (up to 5 millisieverts [mSv]), but since then, many residents have been exposed to low levels of radiation (<1 mSv). This study was conducted to assess the effects of lifestyle and attitude factors on external radiation exposure among Fukushima residents. Methods This community-based, cross-sectional study was conducted in Nihonmatsu City of the Fukushima Prefecture from May to July 2014. The population survey targeted 6,884 children between the ages of 0–15 years, and a personal radiation badge and questionnaire were administered to each of the residences. Multiple linear regression analysis was used to assess the impact of lifestyle and attitude factors on external radiation dose. Results The study participants (population size [n] = 4,571) had an additional mean radiation dose of 0.65 mSv/year, which is small as compared to the mean radiation dose 6 months after the disaster (1.5 mSv/year), in 2012 (1.5 mSv/year), and in 2013 (1.0 mSv/year). External radiation doses statistically varied by socio-demographic and lifestyle factors. Participants living in wooden residences (p-value<0.001) and within 100 meters of a forest (p = 0.001) had higher radiation exposure. Conversely, participants with a cautious attitude towards radiation had lower radiation exposure (beta [b] = -0.124, p = 0.003). Conclusion Having a cautious attitude towards radiation and being aware of exposure risks proved to be significant in the reduction of external radiation dose. Therefore, in the event of future radiation disasters, attitudes towards and awareness of radiation should be considered in the reduction of exposure risk and implementation of radiation protection.
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Affiliation(s)
- Maya Sophia Fujimura
- Department of Community and Global Health, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Yukako Komasa
- Laboratory of International Epidemiology, Center for International Cooperation, Dokkyo Medical University, Tochigi, Japan
| | - Shinzo Kimura
- Laboratory of International Epidemiology, Center for International Cooperation, Dokkyo Medical University, Tochigi, Japan
| | - Akira Shibanuma
- Department of Community and Global Health, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Akiko Kitamura
- Department of Community and Global Health, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Masamine Jimba
- Department of Community and Global Health, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
- * E-mail:
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20
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Cox RS, Irwin P, Scannell L, Ungar M, Bennett TD. Children and youth's biopsychosocial wellbeing in the context of energy resource activities. ENVIRONMENTAL RESEARCH 2017; 158:499-507. [PMID: 28709032 DOI: 10.1016/j.envres.2017.07.014] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/17/2017] [Revised: 06/29/2017] [Accepted: 07/05/2017] [Indexed: 06/07/2023]
Abstract
BACKGROUND Children and youth emerge as key populations that are impacted by energy resource activities, in part because of their developmental vulnerabilities, as well as the compounding effects of energy systems on their families, communities, and physical environments. While there is a larger literature focused on fossil fuel emissions and children, the impacts of many aspects of energy systems on children and youth remain under examined and scattered throughout the health, social science, and environmental science literatures. OBJECTIVES This systematic interdisciplinary review examines the biological, psychosocial, and economic impacts of energy systems identified through social science research - specifically focused on household and industrial extraction and emissions - on children and youth functioning. METHODS A critical interpretive search of interdisciplinary and international social sciences literature was conducted using an adaptive protocol focusing on the biopsychosocial and economic impacts of energy systems on children and youth. The initial results were complemented with a purposeful search to extend the breadth and depth of the final collection of articles. DISCUSSION Although relatively few studies have specifically focused on children and youth in this context, the majority of this research uncovers a range of negative health impacts that are directly and indirectly related to the development and ongoing operations of natural resource production, particularly oil and gas, coal, and nuclear energy. Psychosocial and cultural effects, however, remain largely unexamined and provide a rich avenue for further research. CONCLUSIONS This synthesis identifies an array of adverse biopsychosocial health outcomes on children and youth of energy resource extraction and emissions, and identifies gaps that will drive future research in this area.
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Affiliation(s)
- Robin S Cox
- ResiliencebyDesign Research Lab, School of Humanitarian Studies, Royal Roads University, Victoria, BC, Canada.
| | - Pamela Irwin
- ResiliencebyDesign Research Lab, School of Humanitarian Studies, Royal Roads University, Victoria, BC, Canada
| | - Leila Scannell
- ResiliencebyDesign Research Lab, School of Humanitarian Studies, Royal Roads University, Victoria, BC, Canada
| | - Michael Ungar
- Resilience Research Centre, Dalhousie University, Halifax, NS, Canada
| | - Trevor Dixon Bennett
- ResiliencebyDesign Research Lab, School of Humanitarian Studies, Royal Roads University, Victoria, BC, Canada
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Bellés M, Gonzalo S, Serra N, Esplugas R, Arenas M, Domingo JL, Linares V. Environmental exposure to low-doses of ionizing radiation. Effects on early nephrotoxicity in mice. ENVIRONMENTAL RESEARCH 2017; 156:291-296. [PMID: 28371757 DOI: 10.1016/j.envres.2017.03.034] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2017] [Revised: 03/22/2017] [Accepted: 03/23/2017] [Indexed: 06/07/2023]
Abstract
Nuclear accidents of tremendous magnitude, such as those of Chernobyl (1986) and Fukushima (2011), mean that individuals living in the contaminated areas are potentially exposed to ionizing radiation (IR). However, the dose-response relationship for effects of low doses of radiation is not still established. The present study was aimed at investigating in mice the early effects of low-dose internal radiation exposure on the kidney. Adult male (C57BL/6J) mice were divided into three groups. Two groups received a single subcutaneous (s.c.) doses of cesium (137Cs) with activities of 4000 and 8000Bq/kg bw. A third group (control group) received a single s.c. injection of 0.9% saline. To evaluate acute and subacute effects, mice (one-half of each group) were euthanized at 72h and 10 days post-exposure to 137Cs, respectively. Urine samples were collected for biochemical analysis, including the measurement of F2-isoprostane (F2-IsoP) and kidney injury molecule-1 (KIM-1) levels. Moreover, the concentrations of 8-hydroxy-2'-deoxyguanosine (8-OHdG), a sensitive marker of oxidative DNA damage, were measured in renal tissue. Urinary excretion of total protein significantly increased at 72h in mice exposed to Cs4000. Uric acid and lactate dehydrogenase (LDH) decreased significantly at both times post-exposure in animals exposed to Cs8000. After 72h and 10d of exposure to Cs4000, a significant increase in the γ-glutamil transferase (GGT) and N-acetyl-β-D-glucosaminidase (NAG) activities was observed. In turn, F2-IsoP levels increased -mainly in the Cs4000 group- at 72h post-exposure. Following irradiation (137Cs), the highest level of KIM-1 was corresponded to the Cs4000 group at 72h. Likewise, the main DNA damage was detected in mice exposed to Cs4000, mainly at 10d after irradiation. The alterations observed in several biomarkers suggest an immediate renal damage following exposure to low doses of IR (given as 137Cs). Further investigations are required to clarify the mechanisms involved in the internal IR-induced nephrotoxicity.
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Affiliation(s)
- Montserrat Bellés
- Physiology Unit, School of Medicine, IISPV, Rovira i Virgili University, Reus, Spain; Laboratory of Toxicology and Environmental Health, School of Medicine, IISPV, Rovira i Virgili University, Reus, Spain
| | - Sergio Gonzalo
- Laboratory of Toxicology and Environmental Health, School of Medicine, IISPV, Rovira i Virgili University, Reus, Spain
| | - Noemí Serra
- Laboratory of Toxicology and Environmental Health, School of Medicine, IISPV, Rovira i Virgili University, Reus, Spain
| | - Roser Esplugas
- Laboratory of Toxicology and Environmental Health, School of Medicine, IISPV, Rovira i Virgili University, Reus, Spain
| | - Meritxell Arenas
- Radiation Oncology Department, Sant Joan University Hospital, IISPV, Rovira i Virgili University, Reus, Spain
| | - José Luis Domingo
- Laboratory of Toxicology and Environmental Health, School of Medicine, IISPV, Rovira i Virgili University, Reus, Spain
| | - Victoria Linares
- Physiology Unit, School of Medicine, IISPV, Rovira i Virgili University, Reus, Spain; Laboratory of Toxicology and Environmental Health, School of Medicine, IISPV, Rovira i Virgili University, Reus, Spain.
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Tiwari V, Kamran MZ, Ranjan A, Nimesh H, Singh M, Tandon V. Akt1/NFκB signaling pathway activation by a small molecule DMA confers radioprotection to intestinal epithelium in xenograft model. Free Radic Biol Med 2017; 108:564-574. [PMID: 28435051 DOI: 10.1016/j.freeradbiomed.2017.04.029] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/09/2017] [Revised: 04/06/2017] [Accepted: 04/20/2017] [Indexed: 12/20/2022]
Abstract
Normal tissue protection and recovery of radiation-induced damage are of paramount importance for development of radioprotector. Radioprotector which selectively protects normal tissues over cancerous tissues improves the therapeutic window of radiation therapy. In the present study, small bisbenzimidazole molecule, DMA (5-(4-methylpiperazin-1-yl)-2-[2'-(3,4-dimethoxy-phenyl)-5'-benzimidazolyl]-benzimidazole) was evaluated for in vivo radioprotective effects to selectively protect normal tissue over tumor with underlying molecular mechanism. Administration of single DMA dose prior to radiation has enhanced survival of Balb/c mice against sublethal and supralethal total body irradiation. DMA ameliorated radiation-induced damage of normal tissues such as hematopoietic (HP) and gastrointestinal tract (GI) system. Oxidative stress marker Malondialdehyde level was decreased by DMA whereas it maintained endogenous antioxidant status by increasing the level of reduced glutathione, glutathione reductase, glutathione-s-transferase, superoxide dismutase and total thiol content in hepatic tissue of irradiated mice. Mechanistic studies revealed that DMA treatment prior to radiation leads to Akt1/NFκB signaling which reduced radiation-induced genomic instability in normal cells. However, these pathways were not activated in tumor tissues when subjected to DMA treatment in similar conditions. Abrogation of Akt1 and NFκB genes resulted in no radioprotection by DMA and enhanced apoptosis against radiation. Plasma half-life of DMA was 3.5h and 2.65h at oral and intravenous dose respectively and 90% clearance was observed in 16h. In conclusion, these data suggests that DMA has potential to be developed as a safe radioprotective agent for radiation countermeasures and an adjuvant in cancer therapy.
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Affiliation(s)
- Vinod Tiwari
- Chemical Biology Research Laboratory, Department of Chemistry, University of Delhi, Delhi 110007, India
| | - Mohammad Zahid Kamran
- Special Centre for Molecular Medicine, Jawaharlal Nehru University, Delhi 110067, India
| | - Atul Ranjan
- Department of Cancer Biology, The University of Kansas Cancer Center, 3901 Rainbow Blvd, Kansas City, KS 66010, USA
| | - Hemlata Nimesh
- Chemical Biology Research Laboratory, Department of Chemistry, University of Delhi, Delhi 110007, India
| | - Manish Singh
- Special Centre for Molecular Medicine, Jawaharlal Nehru University, Delhi 110067, India
| | - Vibha Tandon
- Chemical Biology Research Laboratory, Department of Chemistry, University of Delhi, Delhi 110007, India; Special Centre for Molecular Medicine, Jawaharlal Nehru University, Delhi 110067, India.
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Wang B, Katsube T, Begum N, Nenoi M. Revisiting the health effects of psychological stress-its influence on susceptibility to ionizing radiation: a mini-review. JOURNAL OF RADIATION RESEARCH 2016; 57:325-35. [PMID: 27242342 PMCID: PMC4973650 DOI: 10.1093/jrr/rrw035] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/24/2015] [Revised: 02/02/2016] [Accepted: 02/25/2016] [Indexed: 05/03/2023]
Abstract
Both psychological stress (PS) and ionizing radiation (IR) cause varied detrimental effects on humans. There has been no direct evidence so far showing PS alone could cause cancer; however, long-lasting PS may affect our overall health and ability to cope with cancer. Due to their living conditions and occupations, some people may encounter concurrent exposure to both PS and IR to a high extent. In addition to possible health effects resulting directly from exposure to IR on these people, fear of IR exposure is also a cause of PS. The question of whether PS would influence susceptibility to IR, radiocarcinogenesis in particular, is of great concern by both the academic world and the public. Recently, investigations using animal PS models demonstrated that PS could modulate susceptibility to IR, causing increased susceptibility to radiocarcinogenesis in Trp53-heterozygous mice, hematological toxicity in peripheral blood and elevated chromosome aberration (dicentrics) frequency in splenocytes of Trp53-wild-type mice. To actively reduce health risk from exposure to IR, further studies are needed to cumulate more evidence and provide insights into the mechanisms underlying the alterations in susceptibility due to PS modulation. This mini-review gives a general overview of the significance of PS effects on humans and experimental animals, with a special focus on summarizing the latest weight-of-evidence approaches to radiobiological studies on PS-induced alterations in susceptibility in experimental animal models. The susceptibility being investigated is mainly in the context of the impact of the modulatory effect of PS on radiocarcinogenesis; we seek to improve understanding of the combined effects of exposure to both PS and IR in order to facilitate, via active intervention, strategies for radiation risk reduction.
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Affiliation(s)
- Bing Wang
- Radiation Risk Reduction Research Program, Research Center for Radiation Protection, National Institute of Radiological Sciences, Chiba 263-8555, Japan
| | - Takanori Katsube
- Radiation Risk Reduction Research Program, Research Center for Radiation Protection, National Institute of Radiological Sciences, Chiba 263-8555, Japan
| | - Nasrin Begum
- Center for Nuclear Medicine and Ultrasound, Rajshahi Medical College Hospital Campus, G.P.O. Box No. 35, Rajshahi, Bangladesh
| | - Mitsuru Nenoi
- Radiation Risk Reduction Research Program, Research Center for Radiation Protection, National Institute of Radiological Sciences, Chiba 263-8555, Japan
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24
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Sharlow ER, Leimgruber S, Lira A, McConnell MJ, Norambuena A, Bloom GS, Epperly MW, Greenberger JS, Lazo JS. A Small Molecule Screen Exposes mTOR Signaling Pathway Involvement in Radiation-Induced Apoptosis. ACS Chem Biol 2016; 11:1428-37. [PMID: 26938669 DOI: 10.1021/acschembio.5b00909] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Individuals are at risk of exposure to acute ionizing radiation (IR) from a nuclear accident or terrorism, but we lack effective therapies to mitigate the lethal IR effects. In the current study, we exploited an optimized, cell-based, high throughput screening assay to interrogate a small molecule library comprising 3437 known pharmacologically active compounds for mitigation against IR-induced apoptosis. Thirty-three library compounds significantly reduced apoptosis when administered 1 h after 4 Gy IR. Two- or three-dimensional computational structural analyses of the compounds indicated only one or two chemical clusters with most of the compounds being unique structures. The mechanistic target of rapamycin complex 1 (mTORC1) inhibitor, rapamycin, was the most potent compound, and it mitigated apoptosis by 50% at 200 ± 50 pM. Other mTOR inhibitors, namely everolimus, AZD8055, and torin 1, also suppressed apoptosis, providing additional pharmacological evidence for mTOR pathway involvement in regulating cell death after IR. Everolimus and torin 1 treatment after IR decreased the S phase population and enforced both G1 and G2 phase arrest. This prorogation of cell cycle progression was accompanied by decreased IR-induced DNA damage measured by γH2AX phosphorylation at Ser139. RNA interference-mediated knockdown of the respective mTORC1 and mTORC2 subunits, Raptor or Rictor, also mitigated IR-induced apoptosis. Collectively, this study suggests a central role for the mTOR signaling in the cytotoxic response to IR and offers a useful platform to probe for additional agents.
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Affiliation(s)
| | | | | | | | | | | | - Michael W. Epperly
- Department
of Radiation Oncology, University of Pittsburgh, Pittsburgh, Pennsylvania, United States
| | - Joel S. Greenberger
- Department
of Radiation Oncology, University of Pittsburgh, Pittsburgh, Pennsylvania, United States
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Singh VK, Hauer-Jensen M. γ-Tocotrienol as a Promising Countermeasure for Acute Radiation Syndrome: Current Status. Int J Mol Sci 2016; 17:E663. [PMID: 27153057 PMCID: PMC4881489 DOI: 10.3390/ijms17050663] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2016] [Revised: 04/03/2016] [Accepted: 04/25/2016] [Indexed: 01/13/2023] Open
Abstract
The hazard of ionizing radiation exposure due to nuclear accidents or terrorist attacks is ever increasing. Despite decades of research, still, there is a shortage of non-toxic, safe and effective medical countermeasures for radiological and nuclear emergency. To date, the U.S. Food and Drug Administration (U.S. FDA) has approved only two growth factors, Neupogen (granulocyte colony-stimulating factor (G-CSF), filgrastim) and Neulasta (PEGylated G-CSF, pegfilgrastim) for the treatment of hematopoietic acute radiation syndrome (H-ARS) following the Animal Efficacy Rule. Promising radioprotective efficacy results of γ-tocotrienol (GT3; a member of the vitamin E family) in the mouse model encouraged its further evaluation in the nonhuman primate (NHP) model. These studies demonstrated that GT3 significantly aided the recovery of radiation-induced neutropenia and thrombocytopenia compared to the vehicle controls; these results particularly significant after exposure to 5.8 or 6.5 Gray (Gy) whole body γ-irradiation. The stimulatory effect of GT3 on neutrophils and thrombocytes (platelets) was directly and positively correlated with dose; a 75 mg/kg dose was more effective compared to 37.5 mg/kg. GT3 was also effective against 6.5 Gy whole body γ-irradiation for improving neutrophils and thrombocytes. Moreover, a single administration of GT3 without any supportive care was equivalent, in terms of improving hematopoietic recovery, to multiple doses of Neupogen and two doses of Neulasta with full supportive care (including blood products) in the NHP model. GT3 may serve as an ultimate radioprotector for use in humans, particularly for military personnel and first responders. In brief, GT3 is a promising radiation countermeasure that ought to be further developed for U.S. FDA approval for the ARS indication.
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Affiliation(s)
- Vijay K Singh
- Department of Pharmacology and Molecular Therapeutics, F. Edward Hébert School of Medicine, Armed Forces Radiobiology Research Institute, Uniformed Services University of the Health Sciences, Bethesda, MD 20889, USA.
| | - Martin Hauer-Jensen
- Department of Pharmaceutical Sciences, University of Arkansas for Medical Sciences and Central Arkansas Veterans Healthcare Systems, Little Rock, AR 72205, USA.
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26
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Kavanagh JN, Waring EJ, Prise KM. Radiation responses of stem cells: targeted and non-targeted effects. RADIATION PROTECTION DOSIMETRY 2015; 166:110-117. [PMID: 25877536 DOI: 10.1093/rpd/ncv161] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Stem cells are fundamental to the development of any tissue or organism via their ability to self-renew, which is aided by their unlimited proliferative capacity and their ability to produce fully differentiated offspring, often from multiple lineages. Stems cells are long lived and have the potential to accumulate mutations, including in response to radiation exposure. It is thought that stem cells have the potential to be induced into a cancer stem cell phenotype and that these may play an important role in resistance to radiotherapy. For radiation-induced carcinogenesis, the role of targeted and non-targeted effects is unclear with tissue or origin being important. Studies of genomic instability and bystander responses have shown consistent effects in haematopoietic models. Several models of radiation have predicted that stem cells play an important role in tumour initiation and that bystander responses could play a role in proliferation and self-renewal.
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Affiliation(s)
- J N Kavanagh
- Centre for Cancer Research and Cell Biology, Queen's University Belfast, 97 Lisburn Road, Belfast BT9 7AE, UK
| | - E J Waring
- Centre for Cancer Research and Cell Biology, Queen's University Belfast, 97 Lisburn Road, Belfast BT9 7AE, UK
| | - K M Prise
- Centre for Cancer Research and Cell Biology, Queen's University Belfast, 97 Lisburn Road, Belfast BT9 7AE, UK
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Wang B, Tanaka K, Katsube T, Ninomiya Y, Vares G, Liu Q, Morita A, Nakajima T, Nenoi M. Chronic restraint-induced stress has little modifying effect on radiation hematopoietic toxicity in mice. JOURNAL OF RADIATION RESEARCH 2015; 56:760-7. [PMID: 26045492 PMCID: PMC4576999 DOI: 10.1093/jrr/rrv030] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/02/2014] [Accepted: 05/01/2015] [Indexed: 05/16/2023]
Abstract
Both radiation and stresses cause detrimental effects on humans. Besides possible health effects resulting directly from radiation exposure, the nuclear plant accident is a cause of social psychological stresses. A recent study showed that chronic restraint-induced stresses (CRIS) attenuated Trp53 functions and increased carcinogenesis susceptibility of Trp53-heterozygous mice to total-body X-irradiation (TBXI), having a big impact on the academic world and a sensational effect on the public, especially the residents living in radioactively contaminated areas. It is important to investigate the possible modification effects from CRIS on radiation-induced health consequences in Trp53 wild-type (Trp53wt) animals. Prior to a carcinogenesis study, effects of TBXI on the hematopoietic system under CRIS were investigated in terms of hematological abnormality in the peripheral blood and residual damage in the bone marrow erythrocytes using a mouse restraint model. Five-week-old male Trp53wt C57BL/6J mice were restrained 6 h per day for 28 consecutive days, and TBXI (4 Gy) was given on the 8th day. Results showed that CRIS alone induced a marked decrease in the red blood cell (RBC) and the white blood cell (WBC) count, while TBXI caused significantly lower counts of RBCs, WBCs and blood platelets, and a lower concentration of hemoglobin regardless of CRIS. CRIS alone did not show any significant effect on erythrocyte proliferation and on induction of micronucleated erythrocytes, whereas TBXI markedly inhibited erythrocyte proliferation and induced a significant increase in the incidences of micronucleated erythrocytes, regardless of CRIS. These findings suggest that CRIS does not have a significant impact on radiation-induced detrimental effects on the hematopoietic system in Trp53wt mice.
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Affiliation(s)
- Bing Wang
- Research Center for Radiation Protection, National Institute of Radiological Sciences, Chiba 263-8555, Japan
| | - Kaoru Tanaka
- Research Center for Radiation Protection, National Institute of Radiological Sciences, Chiba 263-8555, Japan
| | - Takanori Katsube
- Research Center for Radiation Protection, National Institute of Radiological Sciences, Chiba 263-8555, Japan
| | - Yasuharu Ninomiya
- Research Center for Radiation Protection, National Institute of Radiological Sciences, Chiba 263-8555, Japan
| | - Guillaume Vares
- Research Center for Radiation Protection, National Institute of Radiological Sciences, Chiba 263-8555, Japan
| | - Qiang Liu
- Institute of Radiation Medicine, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin 300192, PR China
| | - Akinori Morita
- Institute of Health Biosciences, The University of Tokushima Graduate School, Tokushima 770-8509, Japan
| | - Tetsuo Nakajima
- Research Center for Radiation Protection, National Institute of Radiological Sciences, Chiba 263-8555, Japan
| | - Mitsuru Nenoi
- Research Center for Radiation Protection, National Institute of Radiological Sciences, Chiba 263-8555, Japan
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29
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Singh VK, Romaine PL, Seed TM. Medical Countermeasures for Radiation Exposure and Related Injuries: Characterization of Medicines, FDA-Approval Status and Inclusion into the Strategic National Stockpile. HEALTH PHYSICS 2015; 108:607-630. [PMID: 25905522 PMCID: PMC4418776 DOI: 10.1097/hp.0000000000000279] [Citation(s) in RCA: 98] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 01/05/2015] [Indexed: 05/28/2023]
Abstract
World events over the past decade have highlighted the threat of nuclear terrorism as well as an urgent need to develop radiation countermeasures for acute radiation exposures and subsequent bodily injuries. An increased probability of radiological or nuclear incidents due to detonation of nuclear weapons by terrorists, sabotage of nuclear facilities, dispersal and exposure to radioactive materials, and accidents provides the basis for such enhanced radiation exposure risks for civilian populations. Although the search for suitable radiation countermeasures for radiation-associated injuries was initiated more than half a century ago, no safe and effective radiation countermeasure for the most severe of these injuries, namely acute radiation syndrome (ARS), has been approved by the United States Food and Drug Administration (FDA). The dearth of FDA-approved radiation countermeasures has prompted intensified research for a new generation of radiation countermeasures. In this communication, the authors have listed and reviewed the status of radiation countermeasures that are currently available for use, or those that might be used for exceptional nuclear/radiological contingencies, plus a limited few medicines that show early promise but still remain experimental in nature and unauthorized for human use by the FDA.
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Affiliation(s)
- Vijay K. Singh
- *Radiation Countermeasures Program, Armed Forces Radiobiology Research Institute, Bethesda, MD; †Department of Radiation Biology, F. Edward Hébert School of Medicine, Uniformed Services University of the Health Sciences, Bethesda, MD; ‡Tech Micro Services, Bethesda, MD
| | - Patricia L.P. Romaine
- *Radiation Countermeasures Program, Armed Forces Radiobiology Research Institute, Bethesda, MD; †Department of Radiation Biology, F. Edward Hébert School of Medicine, Uniformed Services University of the Health Sciences, Bethesda, MD; ‡Tech Micro Services, Bethesda, MD
| | - Thomas M. Seed
- *Radiation Countermeasures Program, Armed Forces Radiobiology Research Institute, Bethesda, MD; †Department of Radiation Biology, F. Edward Hébert School of Medicine, Uniformed Services University of the Health Sciences, Bethesda, MD; ‡Tech Micro Services, Bethesda, MD
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30
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Masuda S, Hisamatsu T, Seko D, Urata Y, Goto S, Li TS, Ono Y. Time- and dose-dependent effects of total-body ionizing radiation on muscle stem cells. Physiol Rep 2015; 3:3/4/e12377. [PMID: 25869487 PMCID: PMC4425979 DOI: 10.14814/phy2.12377] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Exposure to high levels of genotoxic stress, such as high-dose ionizing radiation, increases both cancer and noncancer risks. However, it remains debatable whether low-dose ionizing radiation reduces cellular function, or rather induces hormetic health benefits. Here, we investigated the effects of total-body γ-ray radiation on muscle stem cells, called satellite cells. Adult C57BL/6 mice were exposed to γ-radiation at low- to high-dose rates (low, 2 or 10 mGy/day; moderate, 50 mGy/day; high, 250 mGy/day) for 30 days. No hormetic responses in proliferation, differentiation, or self-renewal of satellite cells were observed in low-dose radiation-exposed mice at the acute phase. However, at the chronic phase, population expansion of satellite cell-derived progeny was slightly decreased in mice exposed to low-dose radiation. Taken together, low-dose ionizing irradiation may suppress satellite cell function, rather than induce hormetic health benefits, in skeletal muscle in adult mice.
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Affiliation(s)
- Shinya Masuda
- Department of Stem Cell Biology, Atomic Bomb Disease Institute, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Tsubasa Hisamatsu
- Department of Stem Cell Biology, Atomic Bomb Disease Institute, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Daiki Seko
- Department of Stem Cell Biology, Atomic Bomb Disease Institute, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Yoshishige Urata
- Department of Stem Cell Biology, Atomic Bomb Disease Institute, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Shinji Goto
- Department of Stem Cell Biology, Atomic Bomb Disease Institute, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Tao-Sheng Li
- Department of Stem Cell Biology, Atomic Bomb Disease Institute, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Yusuke Ono
- Department of Stem Cell Biology, Atomic Bomb Disease Institute, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
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31
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Heredia L, Bellés M, Llovet MI, Domingo JL, Linares V. Neurobehavioral effects of concurrent exposure to cesium-137 and paraquat during neonatal development in mice. Toxicology 2015; 329:73-9. [DOI: 10.1016/j.tox.2015.01.012] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2014] [Revised: 01/01/2015] [Accepted: 01/16/2015] [Indexed: 01/21/2023]
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Singh VK, Wise SY, Fatanmi OO, Scott J, Romaine PLP, Newman VL, Verma A, Elliott TB, Seed TM. Progenitors mobilized by gamma-tocotrienol as an effective radiation countermeasure. PLoS One 2014; 9:e114078. [PMID: 25423021 PMCID: PMC4244184 DOI: 10.1371/journal.pone.0114078] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2014] [Accepted: 11/03/2014] [Indexed: 11/18/2022] Open
Abstract
The purpose of this study was to elucidate the role of gamma-tocotrienol (GT3)-mobilized progenitors in mitigating damage to mice exposed to a supralethal dose of cobalt-60 gamma-radiation. CD2F1 mice were transfused 24 h post-irradiation with whole blood or isolated peripheral blood mononuclear cells (PBMC) from donors that had received GT3 72 h prior to blood collection and recipient mice were monitored for 30 days. To understand the role of GT3-induced granulocyte colony-stimulating factor (G-CSF) in mobilizing progenitors, donor mice were administered a neutralizing antibody specific to G-CSF or its isotype before blood collection. Bacterial translocation from gut to heart, spleen and liver of irradiated recipient mice was evaluated by bacterial culture on enriched and selective agar media. Endotoxin in serum samples also was measured. We also analyzed the colony-forming units in the spleens of irradiated mice. Our results demonstrate that whole blood or PBMC from GT3-administered mice mitigated radiation injury when administered 24 h post-irradiation. Furthermore, administration of a G-CSF antibody to GT3-injected mice abrogated the efficacy of blood or PBMC obtained from such donors. Additionally, GT3-mobilized PBMC inhibited the translocation of intestinal bacteria to the heart, spleen, and liver, and increased colony forming unit-spleen (CFU-S) numbers in irradiated mice. Our data suggests that GT3 induces G-CSF, which mobilizes progenitors and these progenitors mitigate radiation injury in recipient mice. This approach using mobilized progenitor cells from GT3-injected donors could be a potential treatment for humans exposed to high doses of radiation.
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Affiliation(s)
- Vijay K. Singh
- Armed Forces Radiobiology Research Institute, Bethesda, Maryland, United States of America
- Department of Radiation Biology, F. Edward Hébert School of Medicine, Uniformed Services University of the Health Sciences, Bethesda, Maryland, United States of America
- * E-mail:
| | - Stephen Y. Wise
- Armed Forces Radiobiology Research Institute, Bethesda, Maryland, United States of America
| | - Oluseyi O. Fatanmi
- Armed Forces Radiobiology Research Institute, Bethesda, Maryland, United States of America
| | - Jessica Scott
- Armed Forces Radiobiology Research Institute, Bethesda, Maryland, United States of America
| | - Patricia L. P. Romaine
- Armed Forces Radiobiology Research Institute, Bethesda, Maryland, United States of America
| | - Victoria L. Newman
- Armed Forces Radiobiology Research Institute, Bethesda, Maryland, United States of America
| | - Amit Verma
- Armed Forces Radiobiology Research Institute, Bethesda, Maryland, United States of America
| | - Thomas B. Elliott
- Armed Forces Radiobiology Research Institute, Bethesda, Maryland, United States of America
| | - Thomas M. Seed
- Tech Micro Services, Bethesda, Maryland, United States of America
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Goudarzi M, Weber WM, Mak TD, Chung J, Doyle-Eisele M, Melo DR, Brenner DJ, Guilmette RA, Fornace AJ. Metabolomic and lipidomic analysis of serum from mice exposed to an internal emitter, cesium-137, using a shotgun LC-MS(E) approach. J Proteome Res 2014; 14:374-84. [PMID: 25333951 PMCID: PMC4286155 DOI: 10.1021/pr500913n] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
![]()
In
this study ultra performance liquid chromatography (UPLC) coupled
to time-of-flight mass spectrometry in the MSE mode was
used for rapid and comprehensive analysis of metabolites in the serum
of mice exposed to internal exposure by Cesium-137 (137Cs). The effects of exposure to 137Cs were studied at
several time points after injection of 137CsCl in mice.
Over 1800 spectral features were detected in the serum of mice in
positive and negative electrospray ionization modes combined. Detailed
statistical analysis revealed that several metabolites associated
with amino acid metabolism, fatty acid metabolism, and the TCA cycle
were significantly perturbed in the serum of 137Cs-exposed
mice compared with that of control mice. While metabolites associated
with the TCA cycle and glycolysis increased in their serum abundances,
fatty acids such as linoleic acid and palmitic acid were detected
at lower levels in serum after 137Cs exposure. Furthermore,
phosphatidylcholines (PCs) were among the most perturbed ions in the
serum of 137Cs-exposed mice. This is the first study on
the effects of exposure by an internal emitter in serum using a UPLC–MSE approach. The results have put forth a panel of metabolites,
which may serve as potential serum markers to 137Cs exposure.
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Affiliation(s)
- Maryam Goudarzi
- Biochemistry and Molecular and Cellular Biology, Georgetown University , 3970 Reservoir Road NW, Washington, DC 20057, United States
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Bartenfeld MT, Peacock G, Griese SE. Public health emergency planning for children in chemical, biological, radiological, and nuclear (CBRN) disasters. Biosecur Bioterror 2014; 12:201-7. [PMID: 25014894 DOI: 10.1089/bsp.2014.0036] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Children represent nearly a quarter of the US population, but their unique needs in chemical, biological, radiological, and nuclear (CBRN) emergencies may not be well understood by public health and emergency management personnel or even clinicians. Children are different from adults physically, developmentally, and socially. These characteristics have implications for providing care in CBRN disasters, making resulting illness in children challenging to prevent, identify, and treat. This article discusses these distinct physical, developmental, and social traits and characteristics of children in the context of the science behind exposure to, health effects from, and treatment for the threat agents potentially present in CBRN incidents.
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Perros P, Boelaert K, Colley S, Evans C, Evans RM, Gerrard Ba G, Gilbert J, Harrison B, Johnson SJ, Giles TE, Moss L, Lewington V, Newbold K, Taylor J, Thakker RV, Watkinson J, Williams GR. Guidelines for the management of thyroid cancer. Clin Endocrinol (Oxf) 2014; 81 Suppl 1:1-122. [PMID: 24989897 DOI: 10.1111/cen.12515] [Citation(s) in RCA: 732] [Impact Index Per Article: 73.2] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Petros Perros
- Newcastle upon Tyne Hospitals NHS Foundation Trust, Newcastle-upon-Tyne
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Yoshii H, Saito H, Kikuchi S, Ueno T, Sato K. Report on maternal anxiety 16 months after the great East Japan earthquake disaster: anxiety over radioactivity. Glob J Health Sci 2014; 6:1-10. [PMID: 25363115 PMCID: PMC4825496 DOI: 10.5539/gjhs.v6n6p1] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2014] [Accepted: 05/29/2014] [Indexed: 11/12/2022] Open
Abstract
The Great East Japan Earthquake occurred on March 11, 2011. The tsunami caused extensive damage to the Fukushima Daiichi Nuclear Power Plant, resulting in a level 7 nuclear accident. Among those affected by this combined disaster were many pregnant and parturient women. Sixteen months after the earthquake, we conducted a questionnaire survey on anxiety among 259 women who gave birth around the time of the earthquake in Miyagi Prefecture, one of the affected areas. Participants reported 12 categories of anxiety, including anxiety over radioactivity. This study aimed to determine anxiety over radioactivity among this specific population and to record measures for future study. Anxiety over radiation was classified into seven subcategories: food safety, outdoor safety, effects on the fetuses of pregnant women, effects on children, radiation exposure, economic problems, and distrust of information disclosed. This study confirmed that concrete types of anxiety over radiation were keenly felt by mothers who had experienced the disaster who were currently raising children. The findings suggest the need to provide accurate information to these mothers, who are otherwise inundated with miscellaneous confusing information.
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Goudarzi M, Weber W, Mak TD, Chung J, Doyle-Eisele M, Melo D, Brenner DJ, Guilmette RA, Fornace AJ. Development of urinary biomarkers for internal exposure by cesium-137 using a metabolomics approach in mice. Radiat Res 2013; 181:54-64. [PMID: 24377719 DOI: 10.1667/rr13479.1] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Cesium-137 is a fission product of uranium and plutonium in nuclear reactors and is released in large quantities during nuclear explosions or detonation of an improvised device containing this isotope. This environmentally persistent radionuclide undergoes radioactive decay with the emission of beta particles as well as gamma radiation. Exposure to (137)Cs at high doses can cause acute radiation sickness and increase risk for cancer and death. The serious health risks associated with (137)Cs exposure makes it critical to understand how it affects human metabolism and whether minimally invasive and easily accessible samples such as urine and serum can be used to triage patients in case of a nuclear disaster or a radiologic event. In this study, we have focused on establishing a time-dependent metabolomic profile for urine collected from mice injected with (137)CsCl. The samples were collected from control and exposed mice on days 2, 5, 20 and 30 after injection. The samples were then analyzed by ultra-performance liquid chromatography coupled to time-of-flight mass spectrometry (UPLC/TOFMS) and processed by an array of informatics and statistical tools. A total of 1,412 features were identified in ESI(+) and ESI(-) modes from which 200 were determined to contribute significantly to the separation of metabolomic profiles of controls from those of the different treatment time points. The results of this study highlight the ease of use of the UPLC/TOFMS platform in finding urinary biomarkers for (137)Cs exposure. Pathway analysis of the statistically significant metabolites suggests perturbations in several amino acid and fatty acid metabolism pathways. The results also indicate that (137)Cs exposure causes: similar changes in the urinary excretion levels of taurine and citrate as seen with external-beam gamma radiation; causes no attenuation in the levels of hexanoylglycine and N-acetylspermidine; and has unique effects on the levels of isovalerylglycine and tiglylglycine.
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Affiliation(s)
- Maryam Goudarzi
- a Biochemistry and Molecular and Cellular Biology, Georgetown University, Washington DC
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Abstract
Global concerns about the consequences of disasters, political violence, disease, malnutrition, maltreatment, and other threats to human development and well-being have sparked a surge of international interest in resilience science. This article highlights progress and issues in research that aims to understand variations in human adaptation to adverse experiences. Two key questions are considered: Why is a new wave of global research on resilience important for developmental science? and Why is developmental science important for global resilience? The conclusion calls for developmental scientists to engage in international efforts to promote resilience.
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Caceres LG, Cid MP, Uran SL, Zorrilla Zubilete MA, Salvatierra NA, Guelman LR. Pharmacological alterations that could underlie radiation-induced changes in associative memory and anxiety. Pharmacol Biochem Behav 2013; 111:37-43. [PMID: 23958578 DOI: 10.1016/j.pbb.2013.08.004] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/14/2013] [Revised: 08/02/2013] [Accepted: 08/08/2013] [Indexed: 11/30/2022]
Abstract
It is widely known that ionizing radiation is a physical agent broadly used to kill tumor cells during human cancer therapy. Unfortunately, adjacent normal tissues can concurrently undergo undesirable cell injury. Previous data of our laboratory demonstrated that exposure of developing rats to ionizing radiations induced a variety of behavioral differences respect to controls, including changes in associative memory and in anxiety state. However, there is a lack of data concerning modifications in different related pharmacological intermediaries. Therefore, the aim of the present study was to investigate whether the behavioral differences observed in young animals irradiated at birth might be underlain by early changes in PKCß1 levels which, in turn, could lead to changes in hippocampal GABAergic neurotransmission. Male Wistar rats were irradiated with 5Gy of X rays between 24 and 48 h after birth. Different pharmacological markers related to the affected behavioral tasks were assessed in control and irradiated hippocampus at 15 and 30 days, namely GABAA receptor, GAD65-67, ROS and PKCß1. Results showed that all measured parameters were increased in the hippocampus of 30-days-old irradiated animals. In contrast, in the hippocampus of 15-days-old irradiated animals only the levels of PKCß1 were decreased. These data suggest that PKCß1 might constitute a primary target for neonatal radiation damage on the hippocampus. Therefore, it could be hypothesized that an initial decrease in the levels of this protein can trigger a subsequent compensatory increase that, in turn, could be responsible for the plethora of biochemical changes that might underlie the previously observed behavioral alterations.
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Affiliation(s)
- L G Caceres
- 1ª Cátedra de Farmacología, Facultad de Medicina, UBA-CEFyBO-CONICET, Paraguay 2155, piso 15, (1121) Buenos Aires, Argentina
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Morey TE, Rice MJ. Anesthesia in an austere setting: lessons learned from the haiti relief operation. Anesthesiol Clin 2013; 31:107-115. [PMID: 23351537 DOI: 10.1016/j.anclin.2012.10.003] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
The practice of medicine to care for injured patients after an earthquake can challenge physicians. The great need requires an open mind to develop anesthetic plans around locally available resources. A focus on monitored anesthetic care and regional anesthesia is frequently practiced and beneficial to patients. Anesthesiologists will serve as leaders to organize perioperative surgical services and provide input into the ethical triage of patients. The physicians should be mentally and physically prepared to enter into service in this disorganized zone of service to provide care.
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Affiliation(s)
- Timothy E Morey
- Department of Anesthesiology, University of Florida, Gainesville, FL 32610, USA.
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