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Ding J, Zhang K, Wang D, Wang Q. Sevoflurane augments neuroinflammation by regulating DUSP6 via YTHDF1 in postoperative cognitive dysfunction. Toxicol Res (Camb) 2024; 13:tfae100. [PMID: 38966092 PMCID: PMC11221885 DOI: 10.1093/toxres/tfae100] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2024] [Revised: 05/20/2024] [Accepted: 06/26/2024] [Indexed: 07/06/2024] Open
Abstract
Background Postoperative cognitive dysfunction (POCD) is a generally recognized complication experienced by patients who receive anesthesia during surgery. Sevoflurane, the most commonly used inhaled anesthetic, has been shown to trigger neuroinflammation that promotes to POCD. Objective This study examined the pathological mechanism by which sevoflurane causes neuroinflammation, participating in POCD. Methods To establish a neurocyte injury model, the human neuroblastoma cell lines SH-SY5Y and SK-N-SH were treated with sevoflurane. Cell viability was determined using 3-(4,5-dimethyl-2-thiazolyl)-2,5-diphenyl-2-H-tetrazolium bromide (MTT) assays. The reactive oxygen species (ROS) level was evaluated by DCFH-DA assays. A lactate dehydrogenase (LDH) Cytotoxicity Assay Kit was used to measure LDH levels. Inflammatory cytokine levels were measured using enzyme-linked immunosorbent assay assays. Gene expression densities and protein abundance were evaluated using quantitative real-time polymerase chain reaction (qRT-PCR) or western blotting. The interaction between YTHDF1 and dual specific phosphatase 6 (DUSP6) was validated using RNA immunoprecipitation (RIP)-qPCR and methylated RIP (MeRIP)-qPCR assays. Flow cytometry was performed to determine apoptosis. Results Sevoflurane promoted apoptosis, oxidative stress, and neuroinflammation and repressed the expression levels of YTHDF1 and DUSP6. Furthermore, YTHDF1 overexpression reversed sevoflurane-induced neuroinflammation in neurocytes. DUSP6 overexpression could alleviate the neuroinflammation induced by sevoflurane via regulating the extracellular signal-regulated kinase (ERK)1/2 signaling pathway. Moreover, YTHDF1 enhanced DUSP6 expression. Conclusion Sevoflurane-stimulated neuroinflammation by regulating DUSP6 via YTHDF1. Sevoflurane promoted neuroinflammation by regulating DUSP6 via YTHDF1 in an in vitro model of POCD.
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Affiliation(s)
- Jie Ding
- Graduate School, Jiamusi University, Graduate School Department, No. 258, XueFu Street, Xiangyang District, Jiamusi City, 154002, China
| | - Kai Zhang
- Tuberculosis Department One Ward, PLA General Hospital Eighth Medical Center, No. A17, HeishanHu Road, Haidian District, Beijing 100091, China
| | - DongWei Wang
- Department of Anesthesiology, The First Affiliated Hospital of Jiamusi University, No. 348 dexiang Street, Xiangyang District, Jiamusi 154002, Heilongjiang Province, China
| | - QingDong Wang
- Department of Anesthesiology, The First Affiliated Hospital of Jiamusi University, No. 348 dexiang Street, Xiangyang District, Jiamusi 154002, Heilongjiang Province, China
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2
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Tang C, Li Y, Lai Y. Intraoperative Dexmedetomidine for Prevention of Postoperative Cognitive Dysfunction and Delirium in Elderly Patients with Lobectomy: A Propensity Score-Matched, Retrospective Study. Int J Gen Med 2024; 17:2673-2680. [PMID: 38863738 PMCID: PMC11166154 DOI: 10.2147/ijgm.s456762] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2023] [Accepted: 03/25/2024] [Indexed: 06/13/2024] Open
Abstract
Purpose This study aims to investigate whether dexmedetomidine could prevent postoperative cognitive dysfunction and delirium in patients with lobectomy. Patients and Methods Patients with lung cancer who underwent thoracoscopic lobectomy under general anesthesia were enrolled in this study and divided into dexmedetomidine group or control group. Propensity-score match (PSM) was used to reduce the bias and imbalance of confounding variables. After PSM, 87 patients in each group were included. Primary outcomes were postoperative cognitive function and delirium. Secondary outcomes include plasma TNF-α, IL-6, and S100 β protein concentrations. Adverse events were also collected. Results There were no significant differences in the demographic characteristics and hemodynamic parameters between the two groups. Compared with the control group, the MoCA scores were significantly higher (P<0.01), while the incidence of delirium (P<0.01) and the plasma TNF-α (P<0.01), IL-6 (P<0.01), and S100 β protein (P<0.01) concentrations were significantly lower in the dexmedetomidine group at 7 days post-operatively. The incidences of adverse events were similar between the two groups. Conclusion Dexmedetomidine could prevent postoperative cognitive dysfunction and delirium in patients with lobectomy by decreasing neuroinflammation.
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Affiliation(s)
- Chaojun Tang
- Department of Anesthesiology, The First Affiliated Hospital of Jinan University, Guangzhou, 510630, People’s Republic of China
| | - Yalan Li
- Department of Anesthesiology, The First Affiliated Hospital of Jinan University, Guangzhou, 510630, People’s Republic of China
| | - Yong Lai
- Department of Anesthesiology, The First Affiliated Hospital of Jinan University, Guangzhou, 510630, People’s Republic of China
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Gao J, Zhang H, Zhou L, Liu J, Zhuo E, Shen Y, Liu X, Shen Q. MANF Alleviates Sevoflurane-Induced Cognitive Impairment in Neonatal Mice by Modulating Microglial Activation and Polarization. Mol Neurobiol 2024; 61:3357-3368. [PMID: 37989984 DOI: 10.1007/s12035-023-03792-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2023] [Accepted: 11/09/2023] [Indexed: 11/23/2023]
Abstract
The precise mechanism underlying sevoflurane-induced neurotoxicity and cognitive impairment remains largely unknown. Mesencephalic astrocyte-derived neurotrophic factor (MANF) is a neuroprotective factor that has shown promise in various neurological disorders. However, its impact on sevoflurane-induced alterations has not been investigated. Thus, the objective of this study was to examine the effect of MANF in mitigating sevoflurane-induced neurotoxicity in young mice. Anesthesia with 3% sevoflurane 2 h daily was administered to young mice on postnatal day (P) 3, 6 and 9. We also constructed mono-macrophage-specific MANF knockout (MKO) mice in the mechanistic studies. Finally, the recombinant human MANF (rhMANF, 20 μg) protein was intraperitoneally administrated to neonatal mice before the sevoflurane anesthesia and the cognitive function, levels of pro-inflammatory cytokine and synapse-associated protein PSD95, the status of neural apoptosis, microglia activation and oxidative stress in hippocampus of the mice were investigated. The sevoflurane anesthesia increased the expression of endogenous MANF in the hippocampus, especially in microglia. MKO upregulated the expression of tumor necrosis factor-α (TNF-α), accelerated the neural apoptosis and the activation of microglia in hippocampus in young mice. MANF reversed the sevoflurane-induced cognitive impairment and inhibited the upregulation of TNF-α, the neural apoptosis and the reduction of the postsynaptic density protein-95 (PSD95) induced by sevoflurane anesthesia. Also, pretreatment with MANF alleviated the sevoflurane-induced activation of microglia and oxidative stress. Our current results demonstrated that MANF ameliorated neurotoxicity induced by the sevoflurane anesthesia in young mice, and such protective effect was associated with inhibition of microglia activation and neuroinflammation.
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Affiliation(s)
- Jie Gao
- Department of Anesthesiology, the First Affiliated Hospital of Anhui Medical University, NO.218 Jixi Road, Hefei, 230000, China
- Key Laboratory of Anesthesiology and Perioperative Medicine of Anhui Higher Education Institutes, Anhui Medical University, Hefei, 230022, China
| | - Huiping Zhang
- Department of Anesthesiology, the First Affiliated Hospital of Anhui Medical University, NO.218 Jixi Road, Hefei, 230000, China
- Anhui Public Health Clinical Center, Hefei, 230032, China
- Department of Anesthesiology, Institute of Anesthesia, Emergency and Critical Care, Yangzhou University Affiliated Northern Jiangsu People's Hospital, Yangzhou, 225009, Jiangsu, China
| | - Leiying Zhou
- Department of Anesthesiology, the First Affiliated Hospital of Anhui Medical University, NO.218 Jixi Road, Hefei, 230000, China
- Key Laboratory of Anesthesiology and Perioperative Medicine of Anhui Higher Education Institutes, Anhui Medical University, Hefei, 230022, China
| | - Jiaqi Liu
- Department of Anesthesiology, the First Affiliated Hospital of Anhui Medical University, NO.218 Jixi Road, Hefei, 230000, China
- Key Laboratory of Anesthesiology and Perioperative Medicine of Anhui Higher Education Institutes, Anhui Medical University, Hefei, 230022, China
| | - Enba Zhuo
- Department of Anesthesiology, the First Affiliated Hospital of Anhui Medical University, NO.218 Jixi Road, Hefei, 230000, China
- Key Laboratory of Anesthesiology and Perioperative Medicine of Anhui Higher Education Institutes, Anhui Medical University, Hefei, 230022, China
| | - Yujun Shen
- Biopharmaceutical Research Institute, Anhui Medical University, Hefei, 230032, China
| | - Xuesheng Liu
- Department of Anesthesiology, the First Affiliated Hospital of Anhui Medical University, NO.218 Jixi Road, Hefei, 230000, China.
- Key Laboratory of Anesthesiology and Perioperative Medicine of Anhui Higher Education Institutes, Anhui Medical University, Hefei, 230022, China.
| | - Qiying Shen
- Department of Anesthesiology, the First Affiliated Hospital of Anhui Medical University, NO.218 Jixi Road, Hefei, 230000, China.
- Key Laboratory of Anesthesiology and Perioperative Medicine of Anhui Higher Education Institutes, Anhui Medical University, Hefei, 230022, China.
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4
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Cui X, Jia R, Zhao R, Ma N, Jiang F. Silencing PKM2 Attenuates Brain Injury Induced by Status Epilepticus by Inhibiting the AKT/mTOR Pathway and the NLRP3 Inflammasome. Neurochem Res 2024; 49:212-221. [PMID: 37702892 DOI: 10.1007/s11064-023-04023-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2023] [Revised: 08/14/2023] [Accepted: 08/29/2023] [Indexed: 09/14/2023]
Abstract
PKM2 is a glycolytic pyruvate kinase isoenzyme, and its role in neurological diseases has been published. However, the role and mechanism of PKM2 in the process of status epilepticus have not been reported. The purpose of this study is to explore the role and mechanism of PKM2 in epilepsy. Quantitative real-time polymerase chain reaction (qRT-PCR) and western blotting were used to explore the expression of PKM2 in cells. Enzyme-linked immunosorbent assay kits were used to evaluate the level of inflammatory factors. An epilepsy model was established by intraperitoneal injection of lithium chloride in rats. Various behavioural assays were conducted to explore the learning ability and cognitive level of rats. PKM2 expression was upregulated in Mg2+-induced hippocampal neurons. PKM2 inhibition ameliorated Mg2+-induced hippocampal neuronal inflammation and reduced neuronal apoptosis. In addition, PKM2 silencing inhibited the metabolic dysfunction of Mg2+-induced hippocampal neurons. Subsequent experiments showed that the Akt/mTOR pathway and NLRP3 inflammasome are involved in PKM2-mediated neuronal regulation. More importantly, PKM2 inhibition could alleviate status epilepticus in rats. PKM2 inhibition attenuates Mg2+-induced hippocampal neuronal inflammation, apoptosis and metabolic dysfunction and improves the cognitive ability of rats. Therefore, PKM2 may be an important target for epilepsy treatment.
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Affiliation(s)
- Xiaoli Cui
- Department of Neurology, Shaanxi Provincial People's Hospital, No. 256 West Friendship Road, Xi'an, 710068, Shaanxi, China
| | - Ruihua Jia
- Department of Neurology, Shaanxi Provincial People's Hospital, No. 256 West Friendship Road, Xi'an, 710068, Shaanxi, China
| | - Rui Zhao
- Department of Neurology, Shaanxi Provincial People's Hospital, No. 256 West Friendship Road, Xi'an, 710068, Shaanxi, China
| | - Ni Ma
- Department of Neurology, Shaanxi Provincial People's Hospital, No. 256 West Friendship Road, Xi'an, 710068, Shaanxi, China
| | - Feng Jiang
- Department of Neurology, Shaanxi Provincial People's Hospital, No. 256 West Friendship Road, Xi'an, 710068, Shaanxi, China.
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Gusev E, Sarapultsev A. Interplay of G-proteins and Serotonin in the Neuroimmunoinflammatory Model of Chronic Stress and Depression: A Narrative Review. Curr Pharm Des 2024; 30:180-214. [PMID: 38151838 DOI: 10.2174/0113816128285578231218102020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2023] [Accepted: 11/29/2023] [Indexed: 12/29/2023]
Abstract
INTRODUCTION This narrative review addresses the clinical challenges in stress-related disorders such as depression, focusing on the interplay between neuron-specific and pro-inflammatory mechanisms at the cellular, cerebral, and systemic levels. OBJECTIVE We aim to elucidate the molecular mechanisms linking chronic psychological stress with low-grade neuroinflammation in key brain regions, particularly focusing on the roles of G proteins and serotonin (5-HT) receptors. METHODS This comprehensive review of the literature employs systematic, narrative, and scoping review methodologies, combined with systemic approaches to general pathology. It synthesizes current research on shared signaling pathways involved in stress responses and neuroinflammation, including calcium-dependent mechanisms, mitogen-activated protein kinases, and key transcription factors like NF-κB and p53. The review also focuses on the role of G protein-coupled neurotransmitter receptors (GPCRs) in immune and pro-inflammatory responses, with a detailed analysis of how 13 of 14 types of human 5-HT receptors contribute to depression and neuroinflammation. RESULTS The review reveals a complex interaction between neurotransmitter signals and immunoinflammatory responses in stress-related pathologies. It highlights the role of GPCRs and canonical inflammatory mediators in influencing both pathological and physiological processes in nervous tissue. CONCLUSION The proposed Neuroimmunoinflammatory Stress Model (NIIS Model) suggests that proinflammatory signaling pathways, mediated by metabotropic and ionotropic neurotransmitter receptors, are crucial for maintaining neuronal homeostasis. Chronic mental stress can disrupt this balance, leading to increased pro-inflammatory states in the brain and contributing to neuropsychiatric and psychosomatic disorders, including depression. This model integrates traditional theories on depression pathogenesis, offering a comprehensive understanding of the multifaceted nature of the condition.
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Affiliation(s)
- Evgenii Gusev
- Laboratory of Inflammation Immunology, Institute of Immunology and Physiology, Ural Branch of the Russian Academy of Science, Ekaterinburg 620049, Russia
- Russian-Chinese Education and Research Center of System Pathology, South Ural State University, Chelyabinsk 454080, Russia
| | - Alexey Sarapultsev
- Russian-Chinese Education and Research Center of System Pathology, South Ural State University, Chelyabinsk 454080, Russia
- Laboratory of Immunopathophysiology, Institute of Immunology and Physiology, Ural Branch of the Russian Academy of Science, Ekaterinburg 620049, Russia
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6
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Xing P, Wang S, Cao Y, Liu B, Zheng F, Guo W, Huang J, Zhao Z, Yang Z, Lin X, Sang L, Liu Z. Treatment strategies and drug resistance mechanisms in adenocarcinoma of different organs. Drug Resist Updat 2023; 71:101002. [PMID: 37678078 DOI: 10.1016/j.drup.2023.101002] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2023] [Revised: 08/11/2023] [Accepted: 08/12/2023] [Indexed: 09/09/2023]
Abstract
Adenocarcinoma is a common type of malignant tumor, originating from glandular epithelial cells in various organs, such as pancreas, breast, lung, stomach, colon, rectus, and prostate. For patients who lose the opportunity for radical surgery, medication is available to provide potential clinical benefits. However, drug resistance is a big obstacle to obtain desired clinical prognosis. In this review, we provide a summary of treatment strategies and drug resistance mechanisms in adenocarcinoma of different organs, including pancreatic cancer, gastric adenocarcinoma, colorectal adenocarcinoma, lung adenocarcinoma, and prostate cancer. Although the underlying molecular mechanisms involved in drug resistance of adenocarcinoma vary from one organ to the other, there are several targets that are universal for drug resistance in adenocarcinoma, and targeting these molecules could potentially reverse drug resistance in the treatment of adenocarcinomas.
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Affiliation(s)
- Peng Xing
- Department of Surgical Oncology, Breast Surgery, General Surgery,The First Hospital of China Medical University, Shenyang, China
| | - Shuo Wang
- Department of Surgical Oncology, Breast Surgery, General Surgery,The First Hospital of China Medical University, Shenyang, China
| | - Yu Cao
- Department of Surgical Oncology, Breast Surgery, General Surgery,The First Hospital of China Medical University, Shenyang, China
| | - Bo Liu
- Department of Cardiac Surgery,The First Hospital of China Medical University, Shenyang, China
| | - Feifei Zheng
- Department of Laboratory Medicine, the Affiliated Hospital of Jiangnan University, Wuxi, China
| | - Wei Guo
- Department of Pancreatic-Biliary Surgery, The First Hospital of China Medical University, Shenyang, China
| | - Junhao Huang
- Department of Pancreatic-Biliary Surgery, The First Hospital of China Medical University, Shenyang, China
| | - Zimo Zhao
- Department of Ultrasound, The First Hospital of China Medical University, Shenyang, China
| | - Ziyi Yang
- Department of Pancreatic-Biliary Surgery, The First Hospital of China Medical University, Shenyang, China
| | - Xingda Lin
- Department of Pancreatic-Biliary Surgery, The First Hospital of China Medical University, Shenyang, China
| | - Liang Sang
- Department of Ultrasound, The First Hospital of China Medical University, Shenyang, China.
| | - Zhe Liu
- Department of Pancreatic-Biliary Surgery, The First Hospital of China Medical University, Shenyang, China.
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7
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Xie Z, Fong R, Fox AP. Towards a potent and rapidly reversible Dexmedetomidine-based general anesthetic. PLoS One 2023; 18:e0291827. [PMID: 37751454 PMCID: PMC10522005 DOI: 10.1371/journal.pone.0291827] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2023] [Accepted: 09/06/2023] [Indexed: 09/28/2023] Open
Abstract
IN CONCLUSION Our results suggest that Dex supplemented with a low dose of a second agent creates a potent anesthetic that is rapidly reversed by atipamezole and caffeine.
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Affiliation(s)
- Zheng Xie
- Department of Anesthesia and Critical Care, The University of Chicago, Chicago, IL, United States of America
| | - Robert Fong
- Department of Anesthesia and Critical Care, The University of Chicago, Chicago, IL, United States of America
| | - Aaron P. Fox
- Department of Neurobiology, Pharmacology and Physiology, The University of Chicago, Chicago, IL, United States of America
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8
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Kamranian H, Asoudeh H, Sharif RK, Taheri F, Hayes AW, Gholami M, Alavi A, Motaghinejad M. Neuroprotective potential of trimetazidine against tramadol-induced neurotoxicity: role of PI3K/Akt/mTOR signaling pathways. Toxicol Mech Methods 2023; 33:607-623. [PMID: 37051630 DOI: 10.1080/15376516.2023.2202785] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2023] [Revised: 04/10/2023] [Accepted: 04/10/2023] [Indexed: 04/14/2023]
Abstract
Tramadol (TRA) causes neurotoxicity whereas trimetazidine (TMZ) is neuroprotective. The potential involvement of the PI3K/Akt/mTOR signaling pathway in the neuroprotection of TMZ against TRA-induced neurotoxicity was evaluated. Seventy male Wistar rats were divided into groups. Groups 1 and 2 received saline or TRA (50 mg/kg). Groups 3, 4, and 5 received TRA (50 mg/kg) and TMZ (40, 80, or 160 mg/kg) for 14 days. Group 6 received TMZ (160 mg/kg). Hippocampal neurodegenerative, mitochondrial quadruple complex enzymes, phosphatidylinositol-3-kinases (PI3Ks)/protein kinase B levels, oxidative stress, inflammatory, apoptosis, autophagy, and histopathology were evaluated. TMZ decreased anxiety and depressive-like behavior induced by TRA. TMZ in tramadol-treated animals inhibited lipid peroxidation, GSSG, TNF-α, and IL-1β while increasing GSH, SOD, GPx, GR, and mitochondrial quadruple complex enzymes in the hippocampus. TRA inhibited Glial fibrillary acidic protein expression and increased pyruvate dehydrogenase levels. TMZ reduced these changes. TRA decreased the level of JNK and increased Beclin-1 and Bax. TMZ decreased phosphorylated Bcl-2 while increasing the unphosphorylated form in tramadol-treated rats. TMZ activated phosphorylated PI3Ks, Akt, and mTOR proteins. TMZ inhibited tramadol-induced neurotoxicity by modulating the PI3K/Akt/mTOR signaling pathways and its downstream inflammatory, apoptosis, and autophagy-related cascades.
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Affiliation(s)
- Houman Kamranian
- Department of Psychiatry, Faculty of Medicine, Sabzevar University of Medical Sciences, Sabzevar, Iran
| | - Hadi Asoudeh
- Faculty of Pharmacy, Central Branch of Islamic Azad University, Tehran, Iran
| | | | - Fereshteh Taheri
- Department of Medicine, Islamic Azad University, Qom Branch, Iran
| | - A Wallace Hayes
- University of South Florida College of Public Health, Tampa, FL, USA and Institute for Integrative Toxicology, Michigan State University, East Lansing, MI, USA
| | - Mina Gholami
- Chronic Respiratory Disease Research Center (CRDRC), National Research Institute of Tuberculosis and Lung Diseases (NRITLD), Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Ahmad Alavi
- Department of Medicine, Islamic Azad University, Qom Branch, Iran
| | - Majid Motaghinejad
- Chronic Respiratory Disease Research Center (CRDRC), National Research Institute of Tuberculosis and Lung Diseases (NRITLD), Shahid Beheshti University of Medical Sciences, Tehran, Iran
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9
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Gatica S, Aravena C, Prado Y, Aravena D, Echeverría C, Santibanez JF, Riedel CA, Stehberg J, Simon F. Appraisal of the Neuroprotective Effect of Dexmedetomidine: A Meta-Analysis. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2023; 1408:163-181. [PMID: 37093427 DOI: 10.1007/978-3-031-26163-3_9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/25/2023]
Abstract
Dexmedetomidine is an adrenergic receptor agonist that has been regarded as neuroprotective in several studies without an objective measure to it. Thus, the aim of this meta-analysis was to analyze and quantify the current evidence for the neuroprotective effects of dexmedetomidine in animals. The search was performed by querying the National Library of Medicine. Studies were included based on their language, significancy of their results, and complete availability of data on animal characteristics and interventions. Risk of bias was assessed using SYRCLE's risk of bias tool and certainty was assessed using the ARRIVE Guidelines 2.0. Synthesis was performed by calculating pooled standardized mean difference and presented in forest plots and tables. The number of eligible records included per outcome is the following: 22 for IL-1β, 13 for IL-6, 19 for apoptosis, 7 for oxidative stress, 7 for Escape Latency, and 4 for Platform Crossings. At the cellular level, dexmedetomidine was found protective against production of IL-1β (standardized mean difference (SMD) = - 4.3 [- 4.8; - 3.7]) and IL-6 (SMD = - 5.6 [- 6.7; - 4.6]), apoptosis (measured through TUNEL, SMD = - 6.0 [- 6.8; - 4.6]), and oxidative stress (measured as MDA production, SMD = - 2.0 [- 2.4; - 1.4]) exclusively in the central nervous system. At the organism level, dexmedetomidine improved behavioral outcomes measuring escape latency (SMD = - 2.4 [- 3.3; - 1.6]) and number of platform crossings (SMD = 9.1 [- 6.8; - 11.5]). No eligible study had high risk of bias and certainty was satisfactory for reproducibility in all cases. This meta-analysis highlights the complexity of adrenergic stimulation and sheds light into the mechanisms potentiated by dexmedetomidine, which could be exploited for improving current neuroprotective formulations.
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Affiliation(s)
- Sebastian Gatica
- Laboratory of Integrative Physiopathology, Faculty of Life Sciences, Universidad Andres Bello, Santiago, Chile.
- Millennium Institute on Immunology and Immunotherapy, Santiago, Chile.
| | - Cristobal Aravena
- Laboratory of Integrative Physiopathology, Faculty of Life Sciences, Universidad Andres Bello, Santiago, Chile
- Millennium Institute on Immunology and Immunotherapy, Santiago, Chile
| | - Yolanda Prado
- Laboratory of Integrative Physiopathology, Faculty of Life Sciences, Universidad Andres Bello, Santiago, Chile
- Millennium Institute on Immunology and Immunotherapy, Santiago, Chile
| | - Diego Aravena
- Laboratory of Integrative Physiopathology, Faculty of Life Sciences, Universidad Andres Bello, Santiago, Chile
- Millennium Institute on Immunology and Immunotherapy, Santiago, Chile
| | - Cesar Echeverría
- Laboratory of Molecular Biology, Nanomedicine and Genomics, Faculty of Medicine, University of Atacama, Copiapo, Chile
| | - Juan F Santibanez
- Institute for Medical Research, National Institute of the Republic of Serbia, University of Belgrade, Belgrade, Serbia
- Integrative Center for Biology and Applied Chemistry (CIBQA), Bernardo O'Higgins University, Santiago, Chile
| | - Claudia A Riedel
- Laboratory of Integrative Physiopathology, Faculty of Life Sciences, Universidad Andres Bello, Santiago, Chile
- Millennium Institute on Immunology and Immunotherapy, Santiago, Chile
| | - Jimmy Stehberg
- Laboratory of Neurobiology, Institute of Biomedical Sciences, Faculty of Medicine and Faculty of Life Sciences, Universidad Andres Bello, Santiago, Chile
| | - Felipe Simon
- Laboratory of Integrative Physiopathology, Faculty of Life Sciences, Universidad Andres Bello, Santiago, Chile.
- Millennium Institute on Immunology and Immunotherapy, Santiago, Chile.
- Millennium Nucleus of Ion Channel-Associated Diseases, Universidad de Chile, Santiago, Chile.
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10
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Cai M, Gao X, Yu S. Tripartite motif 72 inhibits apoptosis and mitochondrial dysfunction in neural stem cells induced by anesthetic sevoflurane by activating PI3K/AKT pathway. CHINESE J PHYSIOL 2023; 66:36-42. [PMID: 36814155 DOI: 10.4103/cjop.cjop-d-22-00082] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/22/2023] Open
Abstract
Anesthetics exposure induces neurocognitive deficits during brain development and impairs self-renewal and differentiation of neural stem cells (NSCs). Tripartite motif 72 (TRIM72, also known as mitsugumin 53, MG53) is involved in tissue repair and plasma membrane damage repair. The neuroprotective effect of TRIM72 against sevoflurane-induced neurotoxicity of NSCs was investigated in this study. First, human NSCs were exposed to different concentrations of sevoflurane. Results showed that TRIM72 was downregulated in sevoflurane-treated NSCs. Exposure to sevoflurane reduced cell viability in NSCs. Second, sevoflurane-treated NSCs were stimulated with recombinant human TRIM72 (rhTRIM72). Treatment with rhTRIM72 enhanced the cell viability in sevoflurane-treated NSCs. Moreover, treatment with a rhTRIM72-attenuated sevoflurane-induced increase in caspase-3 activity in NSCs. Third, JC-1 aggregates were deceased and JC-1 monomer was increased in sevoflurane-treated NSCs, which were reversed by rhTRIM72. Furthermore, rhTRIM72 also weakened sevoflurane-induced decrease in superoxide dismutase and glutathione peroxidase and increase in malondialdehyde and reactive oxygen species in NSCs. Finally, reduced phosphorylation levels of protein kinase B (AKT) and phosphatidylinositol 3-kinase (PI3K) in sevoflurane-treated NSCs were upregulated by rhTRIM72. In conclusion, TRIM72 inhibited cell apoptosis and reduced the mitochondria membrane potential of sevoflurane-treated NSCs through activation of the PI3K/AKT pathway.
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Affiliation(s)
- Minmin Cai
- Department of Anesthesiology, The Affiliated People's Hospital of Ningbo University, Ningbo, Zhejiang, China
| | - Xiang Gao
- Department of Anesthesiology, The Affiliated People's Hospital of Ningbo University, Ningbo, Zhejiang, China
| | - Shenghui Yu
- Department of Anesthesiology, The Affiliated People's Hospital of Ningbo University, Ningbo, Zhejiang, China
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11
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Serrao JM, Goodchild CS. Alfaxalone anaesthesia increases brain derived neurotrophic factor levels and preserves postoperative cognition by activating pregnane-X receptors: an in vitro study and a double blind randomised controlled trial. BMC Anesthesiol 2022; 22:401. [PMID: 36564723 PMCID: PMC9789577 DOI: 10.1186/s12871-022-01940-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2022] [Accepted: 12/09/2022] [Indexed: 12/25/2022] Open
Abstract
BACKGROUND Alfaxalone is a fast acting intravenous anaesthetic with high therapeutic index. It is an analogue of the naturally-occurring neurosteroid allopregnanolone responsible for maintenance of cognition and neuroprotection by activation of brain pregnane X receptors and consequent increased production of mature brain-derived neurotrophic factor (m-BDNF). Two studies are reported here: an in vitro study investigated whether alfaxalone activates human pregnane X receptors (h-PXR) as effectively as allopregnanolone; and a clinical study that measured postoperative changes in serum m-BDNF and cognition in patients after alfaxalone anaesthesia compared with propofol and sevoflurane. METHODS In vitro Activation of h-PXR by allopregnanolone and alfaxalone solutions (206 - 50,000 nM) was measured using human embryonic kidney cells expressing h-PXR hybridised and linked to the firefly luciferase gene. Light emission by luciferase stimulated by each ligand binding with h-PXR was measured. Clinical A double blind prospective randomised study of patients undergoing hip arthroplasty anaesthetised with alfaxalone TIVA (n = 8) or propofol TIVA (n = 3) or propofol plus sevoflurane inhalational anaesthesia (n = 4). The doses of anaesthetics were titrated to the same depth of anaesthesia (BIS 40-60). Subjects' cognitive performance was assessed using the Grooved Pegboard Test, Digit Symbol Substitution Test (DSST) and Mini Mental State examination (MMSE) for 7 days postoperatively. Serum m-BDNF concentrations were measured for 7 postoperative days. RESULTS In vitro Allopregnanolone and alfaxalone both activated h-PXR, alfaxalone being more efficacious than allopregnanolone: 50,000 nM, p = 0.0019; 16,700 nM, p = 0.0472; 5600 nM, p = 0.0031. Clinical Alfaxalone treated subjects scored better than propofol and sevoflurane anaesthetised patients in the cognition tests: (MMSE p = 0.0251; Grooved Pegboard test dominant hand pre v post anaesthesia scores p = 0.8438 for alfaxalone and p = 0.0156 for propofol and propofol/sevoflurane combined). The higher cognition scores were accompanied by higher serum m-BDNF levels in the alfaxalone anaesthetised patients (p < 0.0001). CONCLUSIONS These results suggest that sedation and anaesthesia induced by the synthetic neuroactive steroid alfaxalone may be accompanied by effects normally caused by physiological actions of allopregnanolone at PXR, namely, increased secretion of m-BDNF and consequent neuroprotection and preservation of cognition. TRIAL REGISTRATION The clinical trial was registered on 17/01/2018 with the Australian New Zealand Clinical Trials Registry: registration number ACTRN12618000064202 [Universal Trial Number U1111-1198-0412].
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Affiliation(s)
- Juliet M. Serrao
- Drawbridge Pharmaceuticals P/L, 23 Milton Parade, Malvern, Victoria 3144 Australia
| | - Colin S. Goodchild
- Drawbridge Pharmaceuticals P/L, 23 Milton Parade, Malvern, Victoria 3144 Australia
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12
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Shen Q, Jiang Y, Jia X, Zhou X, Zhou QH. Amelioratory Effect of Melatonin on Cognition Dysfunction Induced by Sevoflurane Anesthesia in Aged Mice. IRANIAN JOURNAL OF PHARMACEUTICAL RESEARCH : IJPR 2022; 21:e133971. [PMID: 36896324 PMCID: PMC9990511 DOI: 10.5812/ijpr-133971] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/04/2022] [Revised: 12/31/2022] [Accepted: 01/05/2023] [Indexed: 01/26/2023]
Abstract
Background Postoperative cognitive dysfunction (POCD) can be described as a clinical phenomenon characterized by cognitive impairment in patients, particularly elderly patients, after anesthesia and surgery. Researchers have focused on the probable effect of general anesthesia drugs on cognitive functioning status in older adults. Melatonin is an indole-type neuroendocrine hormone with broad biological activity and potent anti-inflammatory, anti-apoptotic, and neuroprotective effects. This study investigated the effects of melatonin on cognitive behavior in aged mice anesthetized with sevoflurane. In addition, melatonin's molecular mechanism was determined. Objectives This study aimed to investigate the mechanisms of melatonin against sevoflurane-induced neurotoxicity. Methods A total of 94 aged C57BL/6J mice were categorized into different groups, namely control (control + melatonin (10 mg/kg)), sevoflurane (sevoflurane + melatonin (10 mg/kg)), sevoflurane + melatonin (10 mg/kg) + phosphatidylinositol 3-kinase (PI3K)/protein kinase B (Akt) inhibitor LY294002 (30 mg/kg), and sevoflurane + melatonin (10 mg/kg) + mammalian target of rapamycin (mTOR) inhibitor (10 mg/kg). The open field and Morris water maze tests were utilized to assess the neuroprotective effects of melatonin on sevoflurane-induced cognitive impairment in aged mice. The expression levels of the apoptosis-linked proteins, PI3K/Akt/mTOR signaling pathway, and pro-inflammatory cytokines in the brain's hippocampus region were determined using the Western blotting technique. The apoptosis of the hippocampal neurons was observed using the hematoxylin and eosin staining technique. Results Neurological deficits in aged, sevoflurane-exposed mice were significantly decreased after melatonin treatment. Mechanistically, melatonin treatment restored sevoflurane-induced down-regulated PI3K/Akt/mTOR expression and significantly attenuated sevoflurane-induced apoptotic cells and neuroinflammation. Conclusions The findings of this study have highlighted the neuroprotective effect of melatonin on sevoflurane-induced cognitive impairment via regulating the PI3K/Akt/mTOR pathway, which might be effective in the clinical treatment of elderly patients with anesthesia-induced POCD.
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Affiliation(s)
- Qihong Shen
- Department of Anesthesiology, Affiliated Hospital of Jiaxing University, Jiaxing, China
| | - Yanyu Jiang
- Department of Anesthesia Medicine, Bengbu Medical College, Bengbu, China
| | - Xiaoyu Jia
- Department of Anesthesiology, Affiliated Hospital of Jiaxing University, Jiaxing, China
| | - Xuyan Zhou
- Department of Anesthesiology, Affiliated Hospital of Jiaxing University, Jiaxing, China
| | - Qing-he Zhou
- Department of Anesthesiology, Affiliated Hospital of Jiaxing University, Jiaxing, China
- Corresponding Author: Department of Anesthesiology, Affiliated Hospital of Jiaxing University, Jiaxing, China.
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13
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Wang J, Liu Z. Research progress on molecular mechanisms of general anesthetic-induced neurotoxicity and cognitive impairment in the developing brain. Front Neurol 2022; 13:1065976. [PMID: 36504660 PMCID: PMC9729288 DOI: 10.3389/fneur.2022.1065976] [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: 10/10/2022] [Accepted: 11/10/2022] [Indexed: 11/25/2022] Open
Abstract
General anesthetics-induced neurotoxicity and cognitive impairment in developing brains have become one of the current research hotspots in the medical science community. The underlying mechanisms are complex and involve various related molecular signaling pathways, cell mediators, autophagy, and other pathological processes. However, few drugs can be directly used to treat neurotoxicity and cognitive impairment caused by general anesthetics in clinical practice. This article reviews the molecular mechanism of general anesthesia-induced neurotoxicity and cognitive impairment in the neonatal brain after surgery in the hope of providing critical references for the treatments of clinical diseases.
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Affiliation(s)
- Jiaojiao Wang
- Department of Anesthesiology, Baotou Central Hospital, Baotou, China,Baotou Clinical Medical College, Inner Mongolia Medical University, Baotou, China
| | - Zhihui Liu
- Department of Anesthesiology, Baotou Central Hospital, Baotou, China,*Correspondence: Zhihui Liu
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14
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The Crosstalk between the Blood–Brain Barrier Dysfunction and Neuroinflammation after General Anaesthesia. Curr Issues Mol Biol 2022; 44:5700-5717. [PMID: 36421670 PMCID: PMC9689502 DOI: 10.3390/cimb44110386] [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: 10/25/2022] [Revised: 11/08/2022] [Accepted: 11/15/2022] [Indexed: 11/19/2022] Open
Abstract
As we know, with continuous medical progress, the treatment of many diseases can be conducted via surgery, which often relies on general anaesthesia for its satisfactory performance. With the widespread use of general anaesthetics, people are beginning to question the safety of general anaesthesia and there is a growing interest in central nervous system (CNS) complications associated with anaesthetics. Recently, abundant evidence has suggested that both blood–brain barrier (BBB) dysfunction and neuroinflammation play roles in the development of CNS complications after anaesthesia. Whether there is a crosstalk between BBB dysfunction and neuroinflammation after general anaesthesia, and whether this possible crosstalk could be a therapeutic target for CNS complications after general anaesthesia needs to be clarified by further studies.
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15
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Liang L, Fan Z, He D, Zhao Y, Zeng T, Liu B, Ma T, Kang J, Zhang H. Sevoflurane-Induced Neurotoxicity in the Developing Hippocampus via HIPK2/AKT/mTOR Signaling. Neurotox Res 2022; 40:803-813. [PMID: 35460511 DOI: 10.1007/s12640-021-00445-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2021] [Accepted: 11/09/2021] [Indexed: 12/27/2022]
Abstract
Sevoflurane (Sev) is a widely used inhalational anesthetic for general anesthesia in children. Previous studies have confirmed that multiple exposures to inhaled anesthetic can induce long-term neurotoxicity in newborn mice. However, the underlying mechanisms remain elusive. In this study, we investigated the role of homeodomain interacting protein kinase 2 (HIPK2), a stress activating kinase involved in neural survival and synaptic plasticity, and its underlying mechanism in sevoflurane-induced neurotoxicity. Empirical study showed that neuronal apoptosis was elevated after exposure to sevoflurane. Meanwhile, up-regulation of HIPK2 and AKT/mTOR signaling was observed in primary hippocampal neurons and hippocampus in mice upon anesthetic exposure. A64, antagonist of HIPK2, could significantly reduce increased apoptosis and activation of AKT/mTOR induced by sevoflurane. AKT antagonist MK2206 partially alleviated neuronal apoptosis without affecting the expression of HIPK2. Experimental results demonstrated a crucial role of HIPK2/AKT/mTOR signaling in neurotoxicity of sevoflurane. Thus, HIPK2/AKT/mTOR signaling can serve as a potential target for the protection of inhalation anesthesia-induced cytotoxicity in the future.
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Affiliation(s)
- Lirong Liang
- State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Engineering Research, Center for Dental Materials and Advanced Manufacture, Department of Anethesiology, School of Stomatology, School of Stomatology, Fourth Military Medical University, Shaanxi, 710032, Xi'an, People's Republic of China
| | - Ze Fan
- State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Engineering Research, Center for Dental Materials and Advanced Manufacture, Department of Anethesiology, School of Stomatology, School of Stomatology, Fourth Military Medical University, Shaanxi, 710032, Xi'an, People's Republic of China
| | - Danyi He
- State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Engineering Research, Center for Dental Materials and Advanced Manufacture, Department of Anethesiology, School of Stomatology, School of Stomatology, Fourth Military Medical University, Shaanxi, 710032, Xi'an, People's Republic of China
| | - Youyi Zhao
- State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Engineering Research, Center for Dental Materials and Advanced Manufacture, Department of Anethesiology, School of Stomatology, School of Stomatology, Fourth Military Medical University, Shaanxi, 710032, Xi'an, People's Republic of China
| | - Tian Zeng
- State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Engineering Research, Center for Dental Materials and Advanced Manufacture, Department of Anethesiology, School of Stomatology, School of Stomatology, Fourth Military Medical University, Shaanxi, 710032, Xi'an, People's Republic of China
| | - Bing Liu
- State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Engineering Research, Center for Dental Materials and Advanced Manufacture, Department of Anethesiology, School of Stomatology, School of Stomatology, Fourth Military Medical University, Shaanxi, 710032, Xi'an, People's Republic of China
| | - Tianyuan Ma
- State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Engineering Research, Center for Dental Materials and Advanced Manufacture, Department of Anethesiology, School of Stomatology, School of Stomatology, Fourth Military Medical University, Shaanxi, 710032, Xi'an, People's Republic of China
| | - Junjun Kang
- Department of Neurobiology and Institute of Neurosciences, School of Basic Medicine, Fourth Military Medical University, Xi'an, Shaanxi, 710032, People's Republic of China
| | - Hui Zhang
- State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Engineering Research, Center for Dental Materials and Advanced Manufacture, Department of Anethesiology, School of Stomatology, School of Stomatology, Fourth Military Medical University, Shaanxi, 710032, Xi'an, People's Republic of China.
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16
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Zhang Y, Chu JMT, Wong GTC. Cerebral Glutamate Regulation and Receptor Changes in Perioperative Neuroinflammation and Cognitive Dysfunction. Biomolecules 2022; 12:biom12040597. [PMID: 35454185 PMCID: PMC9029551 DOI: 10.3390/biom12040597] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2022] [Revised: 04/11/2022] [Accepted: 04/15/2022] [Indexed: 12/23/2022] Open
Abstract
Glutamate is the major excitatory neurotransmitter in the central nervous system and is intricately linked to learning and memory. Its activity depends on the expression of AMPA and NMDA receptors and excitatory amino transporters on neurons and glial cells. Glutamate transporters prevent the excess accumulation of glutamate in synapses, which can lead to aberrant synaptic signaling, excitotoxicity, or cell death. Neuroinflammation can occur acutely after surgical trauma and contributes to the development of perioperative neurocognitive disorders, which are characterized by impairment in multiple cognitive domains. In this review, we aim to examine how glutamate handling and glutamatergic function are affected by neuroinflammation and their contribution to cognitive impairment. We will first summarize the current data regarding glutamate in neurotransmission, its receptors, and their regulation and trafficking. We will then examine the impact of inflammation on glutamate handling and neurotransmission, focusing on changes in glial cells and the effect of cytokines. Finally, we will discuss these changes in the context of perioperative neuroinflammation and the implications they have for perioperative neurocognitive disorders.
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17
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Fehsel K, Christl J. Comorbidity of osteoporosis and Alzheimer's disease: Is `AKT `-ing on cellular glucose uptake the missing link? Ageing Res Rev 2022; 76:101592. [PMID: 35192961 DOI: 10.1016/j.arr.2022.101592] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2021] [Revised: 02/14/2022] [Accepted: 02/16/2022] [Indexed: 02/08/2023]
Abstract
Osteoporosis and Alzheimer's disease (AD) are both degenerative diseases. Osteoporosis often proceeds cognitive deficits, and multiple studies have revealed common triggers that lead to energy deficits in brain and bone. Risk factors for osteoporosis and AD, such as obesity, type 2 diabetes, aging, chemotherapy, vitamin deficiency, alcohol abuse, and apolipoprotein Eε4 and/or Il-6 gene variants, reduce cellular glucose uptake, and protective factors, such as estrogen, insulin, exercise, mammalian target of rapamycin inhibitors, hydrogen sulfide, and most phytochemicals, increase uptake. Glucose uptake is a fine-tuned process that depends on an abundance of glucose transporters (Gluts) on the cell surface. Gluts are stored in vesicles under the plasma membrane, and protective factors cause these vesicles to fuse with the membrane, resulting in presentation of Gluts on the cell surface. This translocation depends mainly on AKT kinase signaling and can be affected by a range of factors. Reduced AKT kinase signaling results in intracellular glucose deprivation, which causes endoplasmic reticulum stress and iron depletion, leading to activation of HIF-1α, the transcription factor necessary for higher Glut expression. The link between diseases and aging is a topic of growing interest. Here, we show that diseases that affect the same biochemical pathways tend to co-occur, which may explain why osteoporosis and/or diabetes are often associated with AD.
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18
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METTL14 promotes apoptosis of spinal cord neurons by inducing EEF1A2 m6A methylation in spinal cord injury. Cell Death Dis 2022; 8:15. [PMID: 35013140 PMCID: PMC8748977 DOI: 10.1038/s41420-021-00808-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2021] [Revised: 11/12/2021] [Accepted: 12/14/2021] [Indexed: 12/31/2022]
Abstract
Spinal cord injury (SCI) is a devastating traumatic condition. METTL14-mediated m6A modification is associated with SCI. This study was intended to investigate the functional mechanism of RNA methyltransferase METTL14 in spinal cord neuron apoptosis during SCI. The SCI rat model was established, followed by evaluation of pathological conditions, apoptosis, and viability of spinal cord neurons. The neuronal function of primary cultured spinal motoneurons of rats was assessed after hypoxia/reoxygenation treatment. Expressions of EEF1A2, Akt/mTOR pathway-related proteins, inflammatory cytokines, and apoptosis-related proteins were detected. EEF1A2 was weakly expressed and Akt/mTOR pathway was inhibited in SCI rat models. Hypoxia/Reoxygenation decreased the viability of spinal cord neurons, promoted LDH release and neuronal apoptosis. EEF1A2 overexpression promoted the viability of spinal cord neurons, inhibited neuronal apoptosis, and decreased inflammatory cytokine levels. Silencing METTL14 inhibited m6A modification of EEF1A2 and increased EEF1A2 expression while METTL14 overexpression showed reverse results. EEF1A2 overexpression promoted viability and inhibited apoptosis of spinal cord neurons and inflammation by activating the Akt/mTOR pathway. In conclusion, silencing METTL14 repressed apoptosis of spinal cord neurons and attenuated SCI by inhibiting m6A modification of EEF1A2 and activating the Akt/mTOR pathway.
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19
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Sun M, Xie Z, Zhang J, Leng Y. Mechanistic insight into sevoflurane-associated developmental neurotoxicity. Cell Biol Toxicol 2022; 38:927-943. [PMID: 34766256 PMCID: PMC9750936 DOI: 10.1007/s10565-021-09677-y] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2021] [Accepted: 10/21/2021] [Indexed: 02/06/2023]
Abstract
With the development of technology, more infants receive general anesthesia for surgery, other interventions, or clinical examination at an early stage after birth. However, whether general anesthetics can affect the function and structure of the developing infant brain remains an important, complex, and controversial issue. Sevoflurane is the most-used anesthetic in infants, but this drug is potentially neurotoxic. Short or single exposure to sevoflurane has a weak effect on cognitive function, while long or repeated exposure to general anesthetics may cause cognitive dysfunction. This review focuses on the mechanisms by which sevoflurane exposure during development may induce long-lasting undesirable effects on the brain. We review neural cell death, neural cell damage, impaired assembly and plasticity of neural circuits, tau phosphorylation, and neuroendocrine effects as important mechanisms for sevoflurane-induced developmental neurotoxicity. More advanced technologies and methods should be applied to determine the underlying mechanism(s) and guide prevention and treatment of sevoflurane-induced neurotoxicity. 1. We discuss the mechanisms underlying sevoflurane-induced developmental neurotoxicity from five perspectives: neural cell death, neural cell damage, assembly and plasticity of neural circuits, tau phosphorylation, and neuroendocrine effects.
2. Tau phosphorylation, IL-6, and mitochondrial dysfunction could interact with each other to cause a nerve damage loop.
3. miRNAs and lncRNAs are associated with sevoflurane-induced neurotoxicity.
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Affiliation(s)
- Mingyang Sun
- The First School of Clinical Medicine, Lanzhou University, Lanzhou, Gansu People’s Republic of China 730000 ,Department of Anesthesiology and Perioperative Medicine, Center for Clinical Single Cell Biomedicine, Henan Provincial People’s Hospital, People’s Hospital of Zhengzhou University, Zhengzhou, Henan People’s Republic of China 450003
| | - Zhongcong Xie
- Department of Anesthesia, Critical Care and Pain Medicine, Massachusetts General Hospital and Harvard Medical School, Boston, MA USA
| | - Jiaqiang Zhang
- Department of Anesthesiology and Perioperative Medicine, Center for Clinical Single Cell Biomedicine, Henan Provincial People’s Hospital, People’s Hospital of Zhengzhou University, Zhengzhou, Henan People’s Republic of China 450003
| | - Yufang Leng
- Day Surgery Center, The First Hospital of Lanzhou University, Lanzhou, Gansu People’s Republic of China 730000
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20
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Chen G, Yang J, Chen Q, Liu D. Ultrasonic Image Restoration Algorithm for Prevention of Nervous Disorders during the Recovery Period of Patients Receiving Sevoflurane Anesthesia. JOURNAL OF HEALTHCARE ENGINEERING 2021; 2021:6124346. [PMID: 34630990 PMCID: PMC8500753 DOI: 10.1155/2021/6124346] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/30/2021] [Accepted: 09/22/2021] [Indexed: 11/18/2022]
Abstract
In this article, dexmedetomidine (Dex) was used to prevent neurological disorders in patients anesthetized with sevoflurane and the effect was analyzed using ultrasound images based on the restoration algorithm of the linear system model. Children injected with Dex were in the experimental group, while children injected with normal saline were in the control group. The mean arterial pressure (MAP), arterial oxygen saturation (SpO2), heart rate (HR), Pediatric anesthesia agitation scale (PAED) score, Face, Legs, Activity, Cry, Consolability (FLACC) score, and adverse drug event (ADE) in the two groups were compared before the injection (T1), at 5 min (T2), 10 min (T3), and 20 min (T4) after the injection, and when the patient came to himself (T5). It was found that in contrast with the control group, the MAP in the experimental group at T2, T3, and T4 periods was lower, while it was higher at T5 period and its HR at T2, T3, T4, and T5 periods was higher (P < 0.05); the PAED and FLACC scores were lower (P < 0.05), and the incidence of ADE (10.53%) was lower than that in the control group (31.58%) (P < 0.05). However, SpO2 at different periods showed no obvious differences between the two groups (P > 0.05). In conclusion, the restoration algorithm-based ultrasound images had high quality, and they demonstrated good application value in evaluating the effect of Dex to prevent neurological disorders in patients anesthetized by sevoflurane.
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Affiliation(s)
- Gong Chen
- Department of Anesthesia Operation, Maternal and Child Health Care Hospital of Hunan, Changsha,410008, Hunan, China
| | - Jinquan Yang
- Department of Anesthesia Operation, Maternal and Child Health Care Hospital of Hunan, Changsha,410008, Hunan, China
| | - Qin Chen
- Department of Anesthesia Operation, Maternal and Child Health Care Hospital of Hunan, Changsha,410008, Hunan, China
| | - Damin Liu
- Department of Anesthesia Operation, Maternal and Child Health Care Hospital of Hunan, Changsha,410008, Hunan, China
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21
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Yang L, He K, Yao S, Zhang Y, Shen J. Sevoflurane inhibits neuroblastoma cell proliferation and invasion and induces apoptosis by miR-144-3p/YAP1 axis. Basic Clin Pharmacol Toxicol 2021; 129:297-307. [PMID: 34192826 DOI: 10.1111/bcpt.13629] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2021] [Revised: 06/22/2021] [Accepted: 06/22/2021] [Indexed: 12/12/2022]
Abstract
BACKGROUND Sevoflurane (SEV) is a typical volatile anaesthetic and has an antitumour activity in various cancer cells. Here, we were curious whether SEV has tumour-suppressive effects in neuroblastoma (NB). METHODS NB cell lines (K-N-SH and SK-N-AS) were treated with SEV (1%, 2% and 4%). Cell Counting Kit-8 (CCK8) and Transwell assays were conducted to examine cell proliferation and invasion, respectively. The apoptosis was verified by flow cytometry, and the yes-associated protein 1 (YAP1), Bax, Bcl2 and cleaved caspase3 levels were detected by western blotting. Quantitative real-time PCR (qRT-PCR) was conducted to monitor the miR-144-3p level in SEV-treated NB cells. The targeted relationship between miR-144-3p and YAP1 was predicted by bioinformatics and testified by the dual-luciferase reporter assay. RESULTS SEV mitigated NB cell proliferation and invasion and strengthened apoptosis dose-dependently. SEV upregulated miR-144-3p. Moreover, the miR-144-3p inhibitor transfection significantly reduced the tumour-suppressive effect of SEV on NB cells. Furthermore, the dual-luciferase reporter assay confirmed that miR-144-3p targeted YAP1 and overexpressing YAP1 partially weakened the inhibitive effects of miR-144-3p on NB cells. CONCLUSION SEV abated NB cell proliferation and invasion and accelerated apoptosis through the miR-144-3p/YAP1 axis.
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Affiliation(s)
- Longqiu Yang
- Huangshi Central Hospital, Affiliated Hospital of Hubei Polytechnic University, Edong Healthcare Group, Huangshi, China
| | - Ke He
- Huangshi Central Hospital, Affiliated Hospital of Hubei Polytechnic University, Edong Healthcare Group, Huangshi, China
| | - Shudong Yao
- Huangshi Central Hospital, Affiliated Hospital of Hubei Polytechnic University, Edong Healthcare Group, Huangshi, China
| | - Yiqiang Zhang
- Huangshi Central Hospital, Affiliated Hospital of Hubei Polytechnic University, Edong Healthcare Group, Huangshi, China
| | - Jun Shen
- Huangshi Central Hospital, Affiliated Hospital of Hubei Polytechnic University, Edong Healthcare Group, Huangshi, China
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22
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Uray T, Dezfulian C, Palmer AA, Miner KM, Leak RK, Stezoski JP, Janesko-Feldman K, Kochanek PM, Drabek T. Cardiac Arrest Induced by Asphyxia Versus Ventricular Fibrillation Elicits Comparable Early Changes in Cytokine Levels in the Rat Brain, Heart, and Serum. J Am Heart Assoc 2021; 10:e018657. [PMID: 33599149 PMCID: PMC8174297 DOI: 10.1161/jaha.120.018657] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Background Current postresuscitative care after cardiac arrest (CA) does not address the cause of CA. We previously reported that asphyxial CA (ACA) and ventricular fibrillation CA (VFCA) elicit unique injury signatures. We hypothesized that the early cytokine profiles of the serum, heart, and brain differ in response to ACA versus VFCA. Methods and Results Adult male rats were subjected to 10 minutes of either ACA or VFCA. Naives and shams (anesthesia and surgery without CA) served as controls (n=12/group). Asphyxiation produced an ≈4‐minute period of progressive hypoxemia followed by a no‐flow duration of ≈6±1 minute. Ventricular fibrillation immediately induced no flow. Return of spontaneous circulation was achieved earlier after ACA compared with VFCA (42±18 versus 105±22 seconds; P<0.001). Brain cytokines in naives were, in general, low or undetectable. Shams exhibited a modest effect on select cytokines. Both ACA and VFCA resulted in robust cytokine responses in serum, heart, and brain at 3 hours. Significant regional differences pinpointed the striatum as a key location of neuroinflammation. No significant differences in cytokines, neuron‐specific enolase, S100b, and troponin T were observed across CA models. Conclusions Both models of CA resulted in marked systemic, heart, and brain cytokine responses, with similar degrees of change across the 2 CA insults. Changes in cytokine levels after CA were most pronounced in the striatum compared with other brain regions. These collective observations suggest that the amplitude of the changes in cytokine levels after ACA versus VFCA may not mediate the differences in secondary injuries between these 2 CA phenotypes.
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Affiliation(s)
- Thomas Uray
- Safar Center for Resuscitation ResearchUniversity of Pittsburgh School of Medicine Pittsburgh PA.,Department of Critical Care Medicine University of Pittsburgh School of Medicine Pittsburgh PA.,Department of Emergency Medicine Vienna General HospitalMedical University of Vienna Vienna Austria
| | - Cameron Dezfulian
- Safar Center for Resuscitation ResearchUniversity of Pittsburgh School of Medicine Pittsburgh PA.,Department of Critical Care Medicine University of Pittsburgh School of Medicine Pittsburgh PA
| | - Abigail A Palmer
- Safar Center for Resuscitation ResearchUniversity of Pittsburgh School of Medicine Pittsburgh PA.,Lake Erie College of Osteopathic Medicine Erie PA
| | - Kristin M Miner
- Graduate School of Pharmaceutical Sciences Duquesne University Pittsburgh PA
| | - Rehana K Leak
- Graduate School of Pharmaceutical Sciences Duquesne University Pittsburgh PA
| | - Jason P Stezoski
- Safar Center for Resuscitation ResearchUniversity of Pittsburgh School of Medicine Pittsburgh PA.,Department of Critical Care Medicine University of Pittsburgh School of Medicine Pittsburgh PA.,Department of Anesthesiology and Perioperative Medicine University of Pittsburgh School of Medicine Pittsburgh PA
| | - Keri Janesko-Feldman
- Safar Center for Resuscitation ResearchUniversity of Pittsburgh School of Medicine Pittsburgh PA.,Department of Critical Care Medicine University of Pittsburgh School of Medicine Pittsburgh PA
| | - Patrick M Kochanek
- Safar Center for Resuscitation ResearchUniversity of Pittsburgh School of Medicine Pittsburgh PA.,Department of Critical Care Medicine University of Pittsburgh School of Medicine Pittsburgh PA
| | - Tomas Drabek
- Safar Center for Resuscitation ResearchUniversity of Pittsburgh School of Medicine Pittsburgh PA.,Department of Anesthesiology and Perioperative Medicine University of Pittsburgh School of Medicine Pittsburgh PA
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23
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Zuo Y, Chang Y, Thirupathi A, Zhou C, Shi Z. Prenatal sevoflurane exposure: Effects of iron metabolic dysfunction on offspring cognition and potential mechanism. Int J Dev Neurosci 2020; 81:1-9. [PMID: 33259670 DOI: 10.1002/jdn.10080] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2020] [Revised: 11/23/2020] [Accepted: 11/25/2020] [Indexed: 12/14/2022] Open
Abstract
For decades, the neurotoxicity caused by anesthetics in mammalian brain development has gained increasing attention. Exposure to anesthetics leads to neurotoxicity and apoptosis of nerve cells, which in turn induces cognitive dysfunction. Although most of the data came from animal studies, general anesthetics have been shown to have adverse effects on cognitive function in infants and young children in recent years. This concern has led to a number of retrospective studies that observed an association between general anesthesia in pregnant women and neurobehavioral problems in fetuses or offspring. Every year, many pregnant women undergo non-obstetric anesthesia due to various reasons such as traffic accidents, fetal interventions, acute appendicitis, symptomatic cholelithiasis, and trauma. A matter of concern for these pregnant women is whether anesthesia has a detrimental effect on fetal brain development in the womb and whether the fetus has cognitive impairment after birth. In humans, the association of anesthetic exposure in infants with the long-term impairment of neurologic functions has been reported in several retrospective clinical studies. Recently, we have found that sevoflurane anesthesia during pregnancy in mice-induced cognitive impairment in the offspring by causing iron deficiency and inhibiting myelinogenesis. Sevoflurane is a commonly used general anesthetic in the hospitals, which can induce neurotoxicity and cause cognitive impairment in fetuses, infants, children, and adults. However, the exact mechanism of sevoflurane-induced damage to the central nervous system (CNS) is not fully understood. Based on our recent results, this paper reviewed the effects of sevoflurane on cognitive impairment and pathological changes such as neurogenesis, neuronal apoptosis, and iron metabolism dysfunction in the offspring.
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Affiliation(s)
- Yong Zuo
- Laboratory of Molecular Iron Metabolism, College of Life Science, Hebei Normal University, Shijiazhuang, China
| | - Yanzhong Chang
- Laboratory of Molecular Iron Metabolism, College of Life Science, Hebei Normal University, Shijiazhuang, China
| | | | - Changhao Zhou
- The First Hospital of Hebei Medical University, Shijiazhuang, China
| | - Zhenhua Shi
- Laboratory of Molecular Iron Metabolism, College of Life Science, Hebei Normal University, Shijiazhuang, China
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24
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Guo Y, Wu Y, Li N, Wang Z. Up-regulation of miRNA-151-3p enhanced the neuroprotective effect of dexmedetomidine against β-amyloid by targeting DAPK-1 and TP53. Exp Mol Pathol 2020; 118:104587. [PMID: 33275947 DOI: 10.1016/j.yexmp.2020.104587] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2020] [Revised: 11/23/2020] [Accepted: 11/29/2020] [Indexed: 12/11/2022]
Abstract
Alzheimer's disease (AD) is the most common cause of dementia and is the leading lethal disease among the elderly. Dexmedetomidine (Dex) has been reported to have multiple neuroprotective effects, but its effect against beta-amyloid (Aβ) has not been completely determined and understood. Dex can activate both α2 adrenoceptor/cAMP/PKA and imidazoline I receptors/ERK1/2 signals. To determine which signal is critical for the effect of Dex on Aβ toxicity, we treated SH-SY5Y and PC12 cells with inhibitors of α2 adrenoceptor and ERK1/2. Dex suppressed the apoptosis of neuronal cells and production of reactive oxygen species induced by Aβ. These suppressive effects were attenuated by both inhibitors. As indicated by western blot, Dex stimulates both pro-apoptosis (activating death-associated protein kinase 1 [DAPK-1] and p53) and anti-apoptotic (up-regulating bcl-2 and bcl-xL) signals in Aβ-treated neuronal cells. This effect is likely associated with ERK1/2 signaling because ERK1/2 inhibitor disrupts the effect of Dex on these signals. To eliminate the pro-apoptotic effect of Dex while retaining its anti-apoptosis action, we screened miRNA-151-3p to target DAPK-1 and p53. Transfection with miRNA-151-3p mimics suppressed DAPK-1 and TP53 expression induced by Dex and increased Nrf-2 and SOD expression. More importantly, increasing miRNA-151-3p enhanced the anti-apoptotic and antioxidative effects of Dex in Aβ-treated neuronal cells. Overall, this study revealed that Dex additionally stimulated pro-apoptosis signaling, although it suppressed Aβ-induced apoptosis of neuronal cells. miRNA-151-3p enhanced the neuroprotective effect of Dex against Aβ by targeting DAPK-1 and TP53.
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Affiliation(s)
- Yan Guo
- Department of Anesthesiology, Changzhi Medical College, No.271, Taihang East Street, Changzhi City, Shanxi Province 046011, China
| | - Yipeng Wu
- Department of Anesthesiology, Changzhi Medical College, No.271, Taihang East Street, Changzhi City, Shanxi Province 046011, China
| | - Na Li
- Department of Ophthalmology, Changzhi people's Hospital, No.053, Yingbin West Street, Changzhi County, Changzhi City, Shanxi Province 046000, China
| | - Zehua Wang
- Department of Anesthesiology, Changzhi Medical College, No.271, Taihang East Street, Changzhi City, Shanxi Province 046011, China.
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25
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Dexmedetomidine alleviates sevoflurane-induced neurotoxicity via mitophagy signaling. Mol Biol Rep 2020; 47:7893-7901. [PMID: 33044702 DOI: 10.1007/s11033-020-05868-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2020] [Accepted: 09/25/2020] [Indexed: 12/18/2022]
Abstract
Dexmedetomidine, a class of α2-adrenergic agonist, was reported to exert a neuroprotective effect on sevoflurane-induced neurotoxicity. However, the specific mechanisms have not been fully clarified yet. The aim of our study is to uncover the role of dexmedetomidine in sevoflurane-induced neurotoxicity. The rats pretreated with dexmedetomidine and/or Rapamycin 3-Methyladenine were housed in a box containing 30% O2, 68% N2 and 2% sevoflurane for 4 h for anesthesia. 24 h after drug injection, Morris water maze test was used to evaluate rats' learning and memory ability. Hematoxylin & eosin (H&E) staining was adopted to analyze the pathological changes of hippocampus. TUNEL assay was performed to measure cell apoptosis in hippocampus. Immunofluorescent assay was utilized to detect HSP60 level. The protein levels of LC3I, LC3II, Beclin-1, CypD, VDAC1 and Tom20 were examined by western blot. 5 weeks after drug injection, Morris water maze test was used to evaluate rats' learning and memory ability again. Dexmedetomidine alleviated sevoflurane-induced nerve injury and the impairment of learning and memory abilities. Additionally, dexmedetomidine inhibited sevoflurane-induced cell apoptosis in hippocampus. In mechanism, dexmedetomidine activated mitophagy to mitigate neurotoxicity by enhancing LC3II/LC3I ratio, HSP60, Beclin-1, CypD, VDAC1 and Tom20 protein levels in hippocampus. Dexmedetomidine alleviates sevoflurane-induced neurotoxicity via mitophagy signaling, offering a potential strategy for sevoflurane-induced neurotoxicity treatment.
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26
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Zhu F, Tong Y, Wu Y, Dong N, Sheng Z, Yao Y. Immunomodulatory property and its regulatory mechanism of double network hydrogel on dendritic cells. J Biomed Mater Res A 2020; 109:1015-1026. [PMID: 32856407 DOI: 10.1002/jbm.a.37091] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2020] [Revised: 08/14/2020] [Accepted: 08/25/2020] [Indexed: 11/06/2022]
Abstract
Modulation of the key immune cell subsets by biomaterial has emerged as a potential target to promote tissue repair and regeneration. Based on calcium alginate (Alg) and glycol chitosan (GC), an injectable double-network (DN) hydrogel has been developed as a scaffold for cell delivery and cell cocultured system. Previous studies have documented the interaction between dendritic cells (DCs) and GC or Alg hydrogel, but the potential effect of DN hydrogel on activation of DCs still remains unclear. This research was conducted to explore the immunomodulatory influence and underlying mechanisms of GC/Alg DN hydrogel on DCs in vitro and in vivo. Stimulation of DCs with DN hydrogel obviously induced the maturation of DCs in vitro. In vivo, DN hydrogel did not have obvious influence on the maturation of splenic DCs on postimplantation days 3, 10, and 30. Mechanistically, we found that DN hydrogel induced the maturation of DCs via phosphorylation of phosphatidylinositol 3-kinase/protein kinase B/mammalian target of rapamycin in vitro. It provides a novel understanding of the immunomodulatory property of DN hydrogel on DCs, which may serve as potential target for designing immune-mediated regenerative strategies.
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Affiliation(s)
- Fujun Zhu
- Chinese PLA General Hospital and Medical School of Chinese PLA, Beijing, China.,Trauma Research Center, Fourth Medical Center and Medical Innovation Research Department of Chinese PLA General Hospital, Beijing, China.,Department of Burns, Plastic, and Wound Repair Surgery, The 924th Hospital of the Joint Logistic Support Force of Chinese PLA, Guilin, China
| | - Yalin Tong
- Department of Burns, Plastic, and Wound Repair Surgery, The 924th Hospital of the Joint Logistic Support Force of Chinese PLA, Guilin, China
| | - Yao Wu
- Trauma Research Center, Fourth Medical Center and Medical Innovation Research Department of Chinese PLA General Hospital, Beijing, China
| | - Ning Dong
- Trauma Research Center, Fourth Medical Center and Medical Innovation Research Department of Chinese PLA General Hospital, Beijing, China
| | - Zhiyong Sheng
- Chinese PLA General Hospital and Medical School of Chinese PLA, Beijing, China.,Trauma Research Center, Fourth Medical Center and Medical Innovation Research Department of Chinese PLA General Hospital, Beijing, China
| | - Yongming Yao
- Chinese PLA General Hospital and Medical School of Chinese PLA, Beijing, China.,Trauma Research Center, Fourth Medical Center and Medical Innovation Research Department of Chinese PLA General Hospital, Beijing, China
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27
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Zhang W, Yu T, Cui X, Yu H, Li X. Analgesic effect of dexmedetomidine in rats after chronic constriction injury by mediating microRNA‐101 expression and the E2F2–TLR4–NF‐κB axis. Exp Physiol 2020; 105:1588-1597. [PMID: 32706450 DOI: 10.1113/ep088596] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2020] [Accepted: 07/23/2020] [Indexed: 12/12/2022]
Affiliation(s)
- Wenwen Zhang
- Department of Anesthesiologythe First Hospital of Jilin University Changchun Jilin 130021 P.R. China
| | - Tingting Yu
- Department of OtolaryngologyHead and Neck Surgerythe First Hospital of Jilin University Changchun Jilin 130021 P.R. China
| | - Xiangyan Cui
- Department of OtolaryngologyHead and Neck Surgerythe First Hospital of Jilin University Changchun Jilin 130021 P.R. China
| | - Hong Yu
- Department of OtolaryngologyHead and Neck Surgerythe First Hospital of Jilin University Changchun Jilin 130021 P.R. China
| | - Xinbai Li
- Department of Anesthesiologythe First Hospital of Jilin University Changchun Jilin 130021 P.R. China
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