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Ma L, Tian S, Zhang HL, Wang JY, Wang JW, Yan HL, Hu XG, Shao Q, Guo JM. Transcriptomic and metabolomic studies on the protective effect of molecular hydrogen against nuclear electromagnetic pulse-induced brain damage. Front Public Health 2023; 11:1103022. [PMID: 36817910 PMCID: PMC9929151 DOI: 10.3389/fpubh.2023.1103022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2022] [Accepted: 01/11/2023] [Indexed: 02/04/2023] Open
Abstract
Background Excessive doses of electromagnetic radiation pose a negative impact on the central nervous system and lead to mental disorders. Molecular hydrogen can scavenge intracellular hydroxyl radicals, acting as an antioxidant, anti-apoptotic and anti-inflammatory agent. We seek to assess the capability of molecular hydrogen to ameliorate brain damage induced by electromagnetic radiation. Methods NEMP (nuclear electromagnetic pulse), a subset of electromagnetic pulse with high voltage value that could cause severe brain injury, was applied to this study. Male wild-type rats were divided into four groups: the control group, the H2 (Molecular hydrogen) group, the NEMP group and the NEMP+H2 group. Rats in the H2 group and the NEMP+H2 group were fed with saturated hydrogen-rich water from 3 days before NEMP exposure (electromagnetic field intensity 400 kV/m, rising edge 20 ns and pulse width 200 ns) to the day of sacrifice. One day after exposure, animal behavior experiments were performed, and samples for transcriptomics and metabolomics analysis were collected. Seven days after exposure, histopathological experiments were conducted. Results The data from the elevated plus maze and the open field test showed that NEMP exposure elicited anxiety-like behavior in rats, which could be alleviated by H2 treatment. Histopathological results manifested that NEMP exposure-induced injuries of the neurons in the hippocampus and amygdala could be attenuated by H2 treatment. Transcriptomic results revealed that NEMP exposure had a profound effect on microtubule structure in the brain. And the combined analysis of transcriptomics and metabolomics showed that H2 has a significant impact on the neuroactive ligand-receptor interaction, synaptic vesicle cycle and synapse etc. Moreover, it was indicated that the glutathione metabolic pathway played a vital role in the NEMP exposure-induced damage and the protective activity of H2. Conclusions H2 is identified as a potent agent against NEMP exposure-induced brain damage and has the potential to be a promising electromagnetic radiation protectant.
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Affiliation(s)
- Long Ma
- Department of Radiation Medicine, College of Naval Medicine, Naval Medical University, Shanghai, China,Department of Clinical Laboratory, Beidaihe Rehabilitation and Recuperation Center of PLA, Qinhuangdao, China
| | - Shuo Tian
- Department of Biochemistry, College of Pharmacy, Naval Medical University, Shanghai, China
| | - Hai-Ling Zhang
- Department of Neurology, Shanghai Changhai Hospital, Naval Medical University, Shanghai, China
| | - Jing-Yi Wang
- Department of Radiation Medicine, College of Naval Medicine, Naval Medical University, Shanghai, China,School of Basic Medicine, Naval Medical University, Shanghai, China,Incubation Base for Undergraduates' Innovation Practice, Department of Radiation Medicine, Faculty of Naval Medicine, Naval Medical University, Shanghai, China
| | - Jia-Wen Wang
- Department of Radiation Medicine, College of Naval Medicine, Naval Medical University, Shanghai, China,School of Basic Medicine, Naval Medical University, Shanghai, China,Incubation Base for Undergraduates' Innovation Practice, Department of Radiation Medicine, Faculty of Naval Medicine, Naval Medical University, Shanghai, China
| | - Hong-Li Yan
- Center of Reproductive Medicine, Shanghai Changhai Hospital, Naval Medical University, Shanghai, China
| | - Xu-Guang Hu
- Department of Gastrointestinal Surgery, Shanghai Changhai Hospital, Naval Medical University, Shanghai, China,Xu-Guang Hu ✉
| | - Qi Shao
- Institute of Neuroscience, Key Laboratory of Molecular Neurobiology of Ministry of Education and The Collaborative Innovation Center for Brain Science, Naval Medical University, Shanghai, China,Qi Shao ✉
| | - Jia-Ming Guo
- Department of Radiation Medicine, College of Naval Medicine, Naval Medical University, Shanghai, China,Incubation Base for Undergraduates' Innovation Practice, Department of Radiation Medicine, Faculty of Naval Medicine, Naval Medical University, Shanghai, China,*Correspondence: Jia-Ming Guo ✉
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Lim SY, Cengiz P. Opioid tolerance and opioid-induced hyperalgesia: Is TrkB modulation a potential pharmacological solution? Neuropharmacology 2022; 220:109260. [PMID: 36165856 DOI: 10.1016/j.neuropharm.2022.109260] [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: 03/14/2022] [Revised: 06/23/2022] [Accepted: 09/15/2022] [Indexed: 11/29/2022]
Abstract
Opioids are widely prescribed for moderate to severe pain in patients with acute illness, cancer pain, and chronic noncancer pain. However, long-term opioid use can cause opioid tolerance and opioid-induced hyperalgesia (OIH), contributing to the opioid misuse and addiction crisis. Strategies to mitigate opioid tolerance and OIH are needed to reduce opioid use and its sequelae. Currently, there are few effective pharmacological strategies that reduce opioid tolerance and OIH. The intrinsic tyrosine kinase receptor B (TrkB) ligand, brain-derived neurotrophic factor (BDNF), has been shown to modulate pain. The BDNF-TrkB signaling plays a role in initiating and sustaining elevated pain sensitivity; however, increasing evidence has shown that BDNF and 7,8-dihydroxyflavone (7,8-DHF), a potent blood-brain barrier-permeable ligand to TrkB, exert neuroprotective, anti-inflammatory, and antioxidant effects that may protect against opioid tolerance and OIH. As such, TrkB signaling may be an important therapeutic avenue in opioid tolerance and OIH. Here, we review 1) the mechanisms of pain, opioid analgesia, opioid tolerance, and OIH; 2) the role of BDNF-TrkB in pain modulation; and 3) the neuroprotective effects of 7,8-DHF and their implications for opioid tolerance and OIH.
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Affiliation(s)
- Sin Yin Lim
- Pharmacy Practice and Translational Research Division, University of Wisconsin-Madison School of Pharmacy, Madison, WI, United States.
| | - Pelin Cengiz
- Department of Pediatrics, University of Wisconsin-Madison School of Medicine and Public Health, Madison, WI, United States; Waisman Center, University of Wisconsin-Madison, United States.
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Lai Y, Dong J, Wu Y, Zhao L, Wang H, Zhang J, Yao B, Xu X, Zou Y, Zhao H, Yue H, Song Y, Wang H, Peng R. Lipid Peroxides Mediated Ferroptosis in Electromagnetic Pulse-Induced Hippocampal Neuronal Damage via Inhibition of GSH/GPX4 Axis. Int J Mol Sci 2022; 23:ijms23169277. [PMID: 36012537 PMCID: PMC9409492 DOI: 10.3390/ijms23169277] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Revised: 08/15/2022] [Accepted: 08/16/2022] [Indexed: 11/16/2022] Open
Abstract
Electromagnetic pulse (EMP) radiation was reported to be harmful to hippocampal neurons. However, the mechanism underlying EMP-induced neuronal damage remains unclear. In this paper, for the first time, we attempted to investigate the involvement of ferroptosis in EMP-induced neuronal damage and its underlying mechanism. In vivo studies were conducted with a rat model to examine the association of ferroptosis and EMP-induced hippocampal neuronal damage. Moreover, in vitro studies were conducted with HT22 neurons to investigate the underlying mechanism of EMP-induced neuronal ferroptosis. In vivo results showed that EMP could induce learning and memory impairment of rats, ferroptotic morphological damages to mitochondria, accumulation of malonaldehyde (MDA) and iron, overexpression of prostaglandin-endoperoxide synthase 2 (PTGS2) mRNA, and downregulation of GPX4 protein in rat hippocampus. In vitro results showed that EMP could induce neuronal death, MDA accumulation, iron overload, PTGS2 overexpression, and GPX4 downregulation in HT22 neurons. These adverse effects could be reversed by either lipid peroxides scavenger ferrostatin-1 or overexpression of GPX4. These results suggest that EMP radiation can induce ferroptosis in hippocampal neurons via a vicious cycle of lipid peroxides accumulation and GSH/GPX4 axis downregulation. Lipid peroxides and the GSH/GPX4 axis provide potential effective intervention targets to EMP-induced hippocampal neuronal damage.
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Hao Y, Liu W, Xu Z, Jin X, Ye Y, Yu C, Hu C, Zuo H, Li Y. High-Power Electromagnetic Pulse Exposure of Healthy Mice: Assessment of Effects on Mice Cognitions, Neuronal Activities, and Hippocampal Structures. Front Cell Neurosci 2022; 16:898164. [PMID: 35966202 PMCID: PMC9374008 DOI: 10.3389/fncel.2022.898164] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2022] [Accepted: 05/30/2022] [Indexed: 11/17/2022] Open
Abstract
Electromagnetic pulse (EMP) is a high-energy pulse with an extremely rapid rise time and a broad bandwidth. The brain is a target organ sensitive to electromagnetic radiation (EMR), the biological effects and related mechanisms of EMPs on the brain remain unclear. The objectives of the study were to assess the effects of EMP exposure on mouse cognitions, and the neuronal calcium activities in vivo under different cases of real-time exposure and post exposure. EMP-treated animal model was established by exposing male adult C57BL/6N mice to 300 kV/m EMPs. First, the effects of EMPs on the cognitions, including the spatial learning and memory, avoidance learning and memory, novelty-seeking behavior, and anxiety, were assessed by multiple behavioral experiments. Then, the changes in the neuronal activities of the hippocampal CA1 area in vivo were detected by fiber photometry in both cases of during real-time EMP radiation and post-exposure. Finally, the structures of neurons in hippocampi were observed by optical microscope and transmission electron microscope. We found that EMPs under this condition caused a decline in the spatial learning and memory ability in mice, but no effects on the avoidance learning and memory, novelty-seeking behavior, and anxiety. The neuron activities of hippocampal CA1 were disturbed by EMP exposure, which were inhibited during EMP exposure, but activated immediately after exposure end. Additionally, the CA1 neuron activities, when mice entered the central area in an Open field (OF) test or explored the novelty in a Novel object exploration (NOE) test, were inhibited on day 1 and day 7 after radiation. Besides, damaged structures in hippocampal neurons were observed after EMP radiation. In conclusion, EMP radiation impaired the spatial learning and memory ability and disturbed the neuronal activities in hippocampal CA1 in mice.
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Affiliation(s)
- Yanhui Hao
- Department of Experimental Pathology, Beijing Institute of Radiation Medicine, Beijing, China
| | - Weiqi Liu
- Department of Experimental Pathology, Beijing Institute of Radiation Medicine, Beijing, China
- Life Science Department, Foshan University, Foshan, China
| | - Zhengtao Xu
- Department of Experimental Pathology, Beijing Institute of Radiation Medicine, Beijing, China
- Life Science Department, Foshan University, Foshan, China
| | - Xing Jin
- Department of Experimental Pathology, Beijing Institute of Radiation Medicine, Beijing, China
| | - Yumeng Ye
- Department of Experimental Pathology, Beijing Institute of Radiation Medicine, Beijing, China
| | - Chao Yu
- Department of Experimental Pathology, Beijing Institute of Radiation Medicine, Beijing, China
| | - Cuicui Hu
- Department of Experimental Pathology, Beijing Institute of Radiation Medicine, Beijing, China
- Academy of Life Sciences, Anhui Medical University, Hefei, China
| | - Hongyan Zuo
- Department of Experimental Pathology, Beijing Institute of Radiation Medicine, Beijing, China
- *Correspondence: Yang Li ; Hongyan Zuo
| | - Yang Li
- Department of Experimental Pathology, Beijing Institute of Radiation Medicine, Beijing, China
- Academy of Life Sciences, Anhui Medical University, Hefei, China
- *Correspondence: Yang Li ; Hongyan Zuo
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Li X, Li T, Hong XY, Liu JJ, Yang XF, Liu GP. Acer Truncatum Seed Oil Alleviates Learning and Memory Impairments of Aging Mice. Front Cell Dev Biol 2021; 9:680386. [PMID: 34055809 PMCID: PMC8160100 DOI: 10.3389/fcell.2021.680386] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2021] [Accepted: 04/22/2021] [Indexed: 12/18/2022] Open
Abstract
Aging, characterized by a time-dependent functional decline of physiological integrity, is the major independent risk factor for many neurodegeneration diseases. Therefore, it’s necessary to look for natural food supplements to extend the healthy lifespan of aging people. We here treated normal aging mice with acer truncatum seed oil, and found that the seed oil significantly improved the learning and memory ability. Proteomics revealed that the seed oil administration changed many proteins expression involving in biological processes, including complement and coagulation cascades, inflammatory response pathway and innate immune response. BDNF/TrkB signaling pathway was also activated by acer truncatum seed oil treatment. And the seed oil administration increased the expression of postsynaptic related proteins including PSD95, GluA1, and NMDAR1, and decreased the mRNA level of inflammatory factors containing IL-1β, TNF-α, and IL-6. These findings suggest that acer truncatum seed oil holds a promise as a therapeutic food supplement for delaying aging with multiple mechanisms.
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Affiliation(s)
- Xiao Li
- Key Laboratory of Ministry of Education of China and Hubei Province for Neurological Disorders, Department of Pathophysiology, School of Basic Medicine and the Collaborative Innovation Center for Brain Science, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Ting Li
- Key Laboratory of Ministry of Education of China and Hubei Province for Neurological Disorders, Department of Pathophysiology, School of Basic Medicine and the Collaborative Innovation Center for Brain Science, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xiao Yue Hong
- Department of Laboratory Medicine, Zhongnan Hospital of Wuhan University, Wuhan University, Wuhan, China
| | - Jian Jun Liu
- Key Laboratory of Modern Toxicology of Shenzhen, Shenzhen Medical Key Discipline of Health Toxicology (2020-2024), Shenzhen Center for Disease Control and Prevention, Shenzhen, China
| | - Xi Fei Yang
- Key Laboratory of Modern Toxicology of Shenzhen, Shenzhen Medical Key Discipline of Health Toxicology (2020-2024), Shenzhen Center for Disease Control and Prevention, Shenzhen, China
| | - Gong Ping Liu
- Key Laboratory of Ministry of Education of China and Hubei Province for Neurological Disorders, Department of Pathophysiology, School of Basic Medicine and the Collaborative Innovation Center for Brain Science, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.,Co-innovation Center of Neuroregeneration, Nantong University, Nantong, China
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