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Wang T, Guan RL, Zou YF, Zheng G, Shen XF, Cao ZP, Yang RH, Liu MC, Du KJ, Li XH, Aschner M, Zhao MG, Chen JY, Luo WJ. MiR-130/SNAP-25 axis regulate presynaptic alteration in anterior cingulate cortex involved in lead induced attention deficits. J Hazard Mater 2023; 443:130249. [PMID: 36332276 DOI: 10.1016/j.jhazmat.2022.130249] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/14/2022] [Revised: 10/18/2022] [Accepted: 10/21/2022] [Indexed: 06/16/2023]
Abstract
Brain volume decrease in the anterior cingulate cortex (ACC) after lead (Pb) exposure has been linked to persistent impairment of attention behavior. However, the precise structural change and molecular mechanism for the Pb-induced ACC alteration and its contribution to inattention have yet to be fully characterized. The present study determined the role of miRNA regulated synaptic structural and functional impairment in the ACC and its relationship to attention deficit disorder in Pb exposed mice. Results showed that Pb exposure induced presynaptic impairment and structural alterations in the ACC. Furthermore, we screened for critical miRNA targets responsible for the synaptic alteration. We found that miR-130, which regulates presynaptic vesicle releasing protein SNAP-25, was responsible for the presynaptic impairment in the ACC and attention deficits in mice. Blocking miR-130 function reversed the Pb-induced decrease in the expression of its presynaptic target SNAP-25, leading to the redistribution of presynaptic vesicles, as well as improved presynaptic function and attention in Pb exposed mice. We report, for the first time, that miR-130 regulating SNAP-25 mediates Pb-induced presynaptic structural and functional impairment in the ACC along with attention deficit disorder in mice.
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Affiliation(s)
- Tao Wang
- Department of Occupational & Environmental Health and the Ministry of Education Key Lab of Hazard Assessment and Control in Special Operational Environment, School of Public Health, Fourth Military Medical University, Xi'an 710032, China.
| | - Rui-Li Guan
- Department of Occupational & Environmental Health and the Ministry of Education Key Lab of Hazard Assessment and Control in Special Operational Environment, School of Public Health, Fourth Military Medical University, Xi'an 710032, China
| | - Yun-Feng Zou
- Department of Toxicology, School of Public Health, Guangxi Medical University, Nanning 530021, China
| | - Gang Zheng
- Department of Occupational & Environmental Health and the Ministry of Education Key Lab of Hazard Assessment and Control in Special Operational Environment, School of Public Health, Fourth Military Medical University, Xi'an 710032, China
| | - Xue-Feng Shen
- Department of Occupational & Environmental Health and the Ministry of Education Key Lab of Hazard Assessment and Control in Special Operational Environment, School of Public Health, Fourth Military Medical University, Xi'an 710032, China
| | - Zi-Peng Cao
- Department of Occupational & Environmental Health and the Ministry of Education Key Lab of Hazard Assessment and Control in Special Operational Environment, School of Public Health, Fourth Military Medical University, Xi'an 710032, China
| | - Rui-Hua Yang
- Department of Nutrition & Food Hygiene and the Ministry of Education Key Lab of Hazard Assessment and Control in Special Operational Environment, School of Public Health, Fourth Military Medical University, Xi'an 710032, China
| | - Ming-Chao Liu
- Department of Occupational & Environmental Health and the Ministry of Education Key Lab of Hazard Assessment and Control in Special Operational Environment, School of Public Health, Fourth Military Medical University, Xi'an 710032, China
| | - Ke-Jun Du
- Department of Occupational & Environmental Health and the Ministry of Education Key Lab of Hazard Assessment and Control in Special Operational Environment, School of Public Health, Fourth Military Medical University, Xi'an 710032, China
| | - Xue-Hang Li
- Department of Occupational & Environmental Health and the Ministry of Education Key Lab of Hazard Assessment and Control in Special Operational Environment, School of Public Health, Fourth Military Medical University, Xi'an 710032, China
| | - Michael Aschner
- Department of Molecular Pharmacology, Albert Einstein College of Medicine, Bronx, NY 10461, USA
| | - Ming-Gao Zhao
- Precision Pharmacy & Drug Development Center, Department of Pharmacy, Tangdu Hospital, Fourth Military Medical University, Xi'an 710032, China.
| | - Jing Yuan Chen
- Department of Occupational & Environmental Health and the Ministry of Education Key Lab of Hazard Assessment and Control in Special Operational Environment, School of Public Health, Fourth Military Medical University, Xi'an 710032, China.
| | - Wen-Jing Luo
- Department of Occupational & Environmental Health and the Ministry of Education Key Lab of Hazard Assessment and Control in Special Operational Environment, School of Public Health, Fourth Military Medical University, Xi'an 710032, China.
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2
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Ji DX, Shen XF, Shi X. [Non-surgical local treatment for pulmonary aspergilloma]. Zhonghua Jie He He Hu Xi Za Zhi 2022; 45:602-608. [PMID: 35658385 DOI: 10.3760/cma.j.cn112147-20220314-00203] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Pulmonary aspergilloma (PA) is usually secondary to pulmonary cavities. The main purpose of PA treatment is to prevent life-threatening hemoptysis. Many patients cannot tolerate surgical resection, which is considered the preferred treatment. Oral or intravenous antifungal therapy is less effective because PA usually does not invade the blood vessels of the pulmonary cavity. In this case, arterial embolization, local injection with drugs, and radiation therapy can be considered. This article will summarized various non-surgical local treatments for PA (hemoptysis) to refer clinical decision-making.
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Affiliation(s)
- D X Ji
- Pulmonary and Critical Care Medicine, Huzhou Central Hospital, Huzhou 313000, China
| | - X F Shen
- Department of Interventional Radiotherapy, Huzhou Central Hospital, Huzhou 313000, China
| | - Xuefei Shi
- Pulmonary and Critical Care Medicine, Huzhou Central Hospital, Huzhou 313000, China
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3
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Zhu XC, Li Q, Shen XF. [A case of mediastinal foreign body caused by esophageal magnetic beads]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2022; 57:501-502. [PMID: 35527447 DOI: 10.3760/cma.j.cn115330-20210610-00343] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Affiliation(s)
- X C Zhu
- Department of Otorhinolaryngology Head and Neck Surgery, the Affiliated Children's Hospital of Nanjing Medical University, Nanjing 210008, China
| | - Q Li
- Department of Otorhinolaryngology Head and Neck Surgery, the Affiliated Children's Hospital of Nanjing Medical University, Nanjing 210008, China
| | - X F Shen
- Department of Otorhinolaryngology Head and Neck Surgery, the Affiliated Children's Hospital of Nanjing Medical University, Nanjing 210008, China
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4
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Shen XF, Qiao B, Pukhov A, Kar S, Zhu SP, Borghesi M, He XT. Scaling laws for laser-driven ion acceleration from nanometer-scale ultrathin foils. Phys Rev E 2021; 104:025210. [PMID: 34525575 DOI: 10.1103/physreve.104.025210] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2020] [Accepted: 08/12/2021] [Indexed: 11/07/2022]
Abstract
Laser-driven ion acceleration has attracted global interest for its potential towards the development of a new generation of compact, low-cost accelerators. Remarkable advances have been seen in recent years with a substantial proton energy increase in experiments, when nanometer-scale ultrathin foil targets and high-contrast intense lasers are applied. However, the exact acceleration dynamics and particularly the ion energy scaling laws in this novel regime are complex and still unclear. Here, we derive a scaling law for the attainable maximum ion energy from such laser-irradiated nanometer-scale foils based on analytical theory and multidimensional particle-in-cell simulations, and further show that this scaling law can be used to accurately describe experimental data over a large range of laser and target parameters on different facilities. This provides crucial references for parameter design and experimentation of the future laser devices towards various potential applications.
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Affiliation(s)
- X F Shen
- Center for Applied Physics and Technology, HEDPS, State Key Laboratory of Nuclear Physics and Technology, and School of Physics, Peking University, Beijing 100871, China.,Institut für Theoretische Physik I, Heinrich-Heine-Universität Düsseldorf, 40225 Düsseldorf, Germany
| | - B Qiao
- Center for Applied Physics and Technology, HEDPS, State Key Laboratory of Nuclear Physics and Technology, and School of Physics, Peking University, Beijing 100871, China.,Collaborative Innovation Center of IFSA (CICIFSA), Shanghai Jiao Tong University, Shanghai 200240, China
| | - A Pukhov
- Institut für Theoretische Physik I, Heinrich-Heine-Universität Düsseldorf, 40225 Düsseldorf, Germany
| | - S Kar
- Center for Plasma Physics, School of Mathematics and Physics, Queen's University Belfast, Belfast BT7 1NN, United Kingdom
| | - S P Zhu
- Institute of Applied Physics and Computational Mathematics, Beijing 100094, China
| | - M Borghesi
- Center for Plasma Physics, School of Mathematics and Physics, Queen's University Belfast, Belfast BT7 1NN, United Kingdom
| | - X T He
- Center for Applied Physics and Technology, HEDPS, State Key Laboratory of Nuclear Physics and Technology, and School of Physics, Peking University, Beijing 100871, China.,Collaborative Innovation Center of IFSA (CICIFSA), Shanghai Jiao Tong University, Shanghai 200240, China.,Institute of Applied Physics and Computational Mathematics, Beijing 100094, China
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5
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Liu R, Shen XF, Liu Q. [Multivariate saturation treatment for pancreatic neuroendocrine neoplasms with liver metastasis]. Zhonghua Yi Xue Za Zhi 2021; 101:2497-2501. [PMID: 34407573 DOI: 10.3760/cma.j.cn112137-20210128-00267] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Pancreatic neuroendocrine neoplasms (pNENs) are relatively rare clinical diseases, accounting for about 4%-5% of all primary pancreatic tumors, and 60% of patients had had distant metastases when pNENs were diagnosed, with liver being the most frequently involved metastatic organ. Currently, treatment options for pNENs with liver metastasis include surgery, local embolization and ablation, chemotherapy, targeted therapy represented by everolimus and bevacizumab, somatostatin receptor therapy and immunotherapy. However, how to accurately evaluate the condition of patients at different stages of the disease, choose the above-mentioned treatment methods and optimize the treatment effect is a hot and difficult research topic. As a new tumor treatment concept in the era of intelligent medicine recently proposed by the author, the concept of multivariate saturation treatment used artificial intelligence technology to integrate existing tumor treatment methods, combined with the individual heterogeneity of patients; used the deep learning technology of artificial intelligence to accurately assess disease stages and predict the possible response of the corresponding treatment; used the robotic surgery platform to adopt the most suitable surgical method for the patient, which was dynamically adjusted at different stages of tumor treatment to maximize and optimize the treatment effect. Multivariate saturation treatment can provide the possibility to achieve the optimal prognosis of the patient.
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Affiliation(s)
- R Liu
- Faculty of Heapto-Biliary-Pancreatic Surgery, Chinese People's Liberation Army (PLA) General Hospital, Beijing 100853, China
| | - X F Shen
- Faculty of Heapto-Biliary-Pancreatic Surgery, Chinese People's Liberation Army (PLA) General Hospital, Beijing 100853, China
| | - Q Liu
- Faculty of Heapto-Biliary-Pancreatic Surgery, Chinese People's Liberation Army (PLA) General Hospital, Beijing 100853, China
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Wan HL, Hong XY, Zhao ZH, Li T, Zhang BG, Liu Q, Zhao S, Wang JZ, Shen XF, Liu GP, Liu GP. STAT3 ameliorates cognitive deficits via regulation of NMDAR expression in an Alzheimer's disease animal model. Am J Cancer Res 2021; 11:5511-5524. [PMID: 33859760 PMCID: PMC8039956 DOI: 10.7150/thno.56541] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2020] [Accepted: 02/17/2021] [Indexed: 12/29/2022] Open
Abstract
Background: Abnormal tau accumulation in the brain has a positively correlation with neurodegeneration and memory deterioration, but the mechanism underlying tau-associated synaptic and cognitive impairments remains unclear. Our previous work has found that human full length tau (hTau) accumulation activated signal transducer and activator of transcription-1 (STAT1) to suppress N-methyl-D-aspartate receptors (NMDARs) expression, followed by memory deficits. STAT3 also belongs to STAT protein family and is reported to involve in regulation of synaptic plasticity and cognition. Here, we investigated the role of STAT3 in the cognitive deficits induced by hTau accumulation. Methods: In vitro studies HEK293 cells were used. EMSA, Luciferase reporter assay, and Immunoprecipitation were applied to detect STAT3 activity. In vivo studies, AAV virus were injected into the hippocampal CA3 region of C57 mice. Western blotting, quantitative real-time polymerase chain reaction, and immunofluorescence were applied to examine the level of synaptic proteins. Electrophysiological analysis, behavioral testing and Golgi impregnation were used to determine synaptic plasticity and memory ability recovery after overexpressing STAT3 or non-acetylated STAT1. Results: Our results showed that hTau accumulation acetylated STAT1 to retain STAT3 in the cytoplasm by increasing the binding of STAT1 with STAT3, and thus inactivated STAT3. Overexpressing STAT3 or non-acetylated STAT1 ameliorated hTau-induced synaptic loss and memory deficits by increasing the expression of NMDARs. Conclusions: Taken together, our study indicates that hTau accumulation impaired synaptic plasticity through STAT3 inactivation induced suppression of NMDARs expression, revealing a novel mechanism for hTau-associated synapse and memory deficits.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | - Gong-Ping Liu
- Department of Pathophysiology, School of Basic Medicine and the Collaborative Innovation Center for Brain Science, Key Laboratory of Ministry of Education of China and Hubei Province for Neurological Disorders, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China.,Co-innovation Center of Neuroregeneration, Nantong University, Nantong, JS 226001, China
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7
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Zhao ZH, Du KJ, Wang T, Wang JY, Cao ZP, Chen XM, Song H, Zheng G, Shen XF. Maternal Lead Exposure Impairs Offspring Learning and Memory via Decreased GLUT4 Membrane Translocation. Front Cell Dev Biol 2021; 9:648261. [PMID: 33718391 PMCID: PMC7947239 DOI: 10.3389/fcell.2021.648261] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2020] [Accepted: 02/08/2021] [Indexed: 11/13/2022] Open
Abstract
Lead (Pb) can cause a significant neurotoxicity in both adults and children, leading to the impairment to brain function. Pb exposure plays a key role in the impairment of learning and memory through synaptic neurotoxicity, resulting in the cognitive function. Researches have demonstrated that Pb exposure plays an important role in the etiology and pathogenesis of neurodegenerative diseases, such as Alzheimer's disease. However, the underlying mechanisms remain unclear. In the current study, a gestational Pb exposure (GLE) rat model was established to investigate the underlying mechanisms of Pb-induced cognitive impairment. We demonstrated that low-level gestational Pb exposure impaired spatial learning and memory as well as hippocampal synaptic plasticity at postnatal day 30 (PND 30) when the blood concentration of Pb had already recovered to normal levels. Pb exposure induced a decrease in hippocampal glucose metabolism by reducing glucose transporter 4 (GLUT4) levels in the cell membrane through the phosphatidylinositol 3 kinase-protein kinase B (PI3K-Akt) pathway. In vivo and in vitro GLUT4 over-expression increased the membrane translocation of GLUT4 and glucose uptake, and reversed the Pb-induced impairment to synaptic plasticity and cognition. These findings indicate that Pb exposure impairs synaptic plasticity by reducing the level of GLUT4 in the cell membrane as well as glucose uptake via the PI3K-Akt signaling pathway, demonstrating a novel mechanism for Pb exposure-induced neurotoxicity.
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Affiliation(s)
- Zai-Hua Zhao
- Department of Occupational and Environmental Health and the Ministry of Education Key Lab of Hazard Assessment and Control in Special Operational Environment, School of Public Health, Fourth Military Medical University, Xi'an, China
| | - Ke-Jun Du
- Department of Occupational and Environmental Health and the Ministry of Education Key Lab of Hazard Assessment and Control in Special Operational Environment, School of Public Health, Fourth Military Medical University, Xi'an, China
| | - Tao Wang
- Department of Occupational and Environmental Health and the Ministry of Education Key Lab of Hazard Assessment and Control in Special Operational Environment, School of Public Health, Fourth Military Medical University, Xi'an, China
| | - Ji-Ye Wang
- Department of Occupational and Environmental Health and the Ministry of Education Key Lab of Hazard Assessment and Control in Special Operational Environment, School of Public Health, Fourth Military Medical University, Xi'an, China
| | - Zi-Peng Cao
- Department of Occupational and Environmental Health and the Ministry of Education Key Lab of Hazard Assessment and Control in Special Operational Environment, School of Public Health, Fourth Military Medical University, Xi'an, China
| | - Xiao-Ming Chen
- Department of Occupational and Environmental Health and the Ministry of Education Key Lab of Hazard Assessment and Control in Special Operational Environment, School of Public Health, Fourth Military Medical University, Xi'an, China
| | - Han Song
- Department of Occupational and Environmental Health and the Ministry of Education Key Lab of Hazard Assessment and Control in Special Operational Environment, School of Public Health, Fourth Military Medical University, Xi'an, China.,Department of Health Service, Chinese PLA General Hospital, Beijing, China
| | - Gang Zheng
- Department of Occupational and Environmental Health and the Ministry of Education Key Lab of Hazard Assessment and Control in Special Operational Environment, School of Public Health, Fourth Military Medical University, Xi'an, China
| | - Xue-Feng Shen
- Department of Occupational and Environmental Health and the Ministry of Education Key Lab of Hazard Assessment and Control in Special Operational Environment, School of Public Health, Fourth Military Medical University, Xi'an, China
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8
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Chen YC, Wei XE, Lu J, Qiao RH, Shen XF, Li YH. Correlation Between Internal Carotid Artery Tortuosity and Imaging of Cerebral Small Vessel Disease. Front Neurol 2020; 11:567232. [PMID: 33193005 PMCID: PMC7642469 DOI: 10.3389/fneur.2020.567232] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2020] [Accepted: 09/16/2020] [Indexed: 11/25/2022] Open
Abstract
Background and Purpose: An association between artery tortuosity and neuroimaging of cerebral small vessel disease (SVD) has been reported, especially in the posterior circulation. However, few studies involved the whole magnetic resonance imaging (MRI) spectrum of SVD in association with anterior circulation arterial tortuosity. This study aimed to investigate the relationship between internal carotid artery (ICA) tortuosity and the neuroimaging of SVD. Methods: Data of 1,264 consecutive patients in whom cerebral vessel diseases were suspected and who underwent both MRI and computed tomography angiography were reviewed from a prospective registry. Internal carotid artery tortuosity was evaluated using the tortuosity index (TI), which was defined as the ratio of the vessel centerline length divided by the straight length. Magnetic resonance imaging was used to assess cerebral microbleeds (CMBs), white matter hyperintensities (WMHs), enlarged perivascular spaces (EPVSs), and lacunes. Results: The TIs of the ICA for patients with and without SVD MRI markers were 1.81 ± 0.42 and 1.72 ± 0.33, respectively (P < 0.001). Univariate analysis showed that the ICA TI were positively correlated with each SVD MRI marker (P < 0.001), and the correlation coefficients (rs) were 0.57, 0.42, 0.30, and 0.26 for EPVSs, WMHs, CMBs, and lacunes, respectively. The adjusted ORs of the ICA TI were 1.52 (95% CI 1.44–1.60, P < 0.001) for EPVS grade 1, 2.05 (95% CI 1.93–2.18, P < 0.001) for EPVS grades 2–4, and 1.09 (95% CI 1.03–1.15, P = 0.004) for WMH grade 3. Conclusions: The TI of ICA was higher in patients with neuroimaging of SVD. Internal carotid arteries tortuosity was associated with MRI-defined markers of SVD, including EPVS and high-grade WMH, and positively correlated with EPVS severity. Arterial tortuosity might be a risk factor for SVD. This finding may have potential clinical significance for identifying patients with suspected SVD.
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Affiliation(s)
- Yuan-Chang Chen
- Institute of Diagnostic and Interventional Radiology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Xiao-Er Wei
- Institute of Diagnostic and Interventional Radiology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Jing Lu
- Institute of Diagnostic and Interventional Radiology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Rui-Hua Qiao
- Institute of Diagnostic and Interventional Radiology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Xue-Feng Shen
- Institute of Diagnostic and Interventional Radiology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Yue-Hua Li
- Institute of Diagnostic and Interventional Radiology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
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Song H, Zheng G, Shen XF, Zhao ZH, Liu Y, Liu Y, Liu YY, Kang JJ, Chen JY, Luo WJ. An efficient autometallography approach to localize lead at ultra-structural levels of cultured cells. Biophys Rep 2020. [DOI: 10.1007/s41048-020-00116-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
Abstract
AbstractUnderstanding the precise intracellular localization of lead (Pb) is a key in deciphering processes in Pb-induced toxicology. However, it is a great challenge to trace Pbin vitro, especially in cultured cells. We aimed to find an innovative and efficient approach to investigate distribution of Pb in cells and to validate it through determining the subcellular Pb content. We identified its ultra-structural distribution with autometallography under electron microscopy in a choroidal epithelial Z310 cell line. Electron microscopy in combination with energy-dispersive X-ray spectroscope (EDS) was employed to provide further evidence of Pb location. In addition, Pb content was determined in the cytosol, membrane/organelle, nucleus and cytoskeleton fractions with atomic absorption spectroscopy. Pb was found predominantly inside the nuclear membranes and some was distributed in the cytoplasm under low-concentration exposure. Nuclear existence of Pb was verified by EDS under electron microscopy. Once standardized for protein content, Pb percentage in the nucleus fraction reached the highest level (76%). Our results indicate that Pb is accumulated mainly in the nucleus of choroid plexus. This method is sensitive and precise in providing optimal means to study the ultra-structural localization of Pb forin vitromodels. In addition, it offers the possibility of localization of other metals in cultured cells. Some procedures may also be adopted to detect target proteins via immunoreactions.
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Shen XF, Tian L. ["U" type foreign body in esophagus: report of two cases]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2020; 55:525-526. [PMID: 32842371 DOI: 10.3760/cma.j.cn115330-20190919-00586] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Affiliation(s)
- X F Shen
- Department of Otorhinolaryngology, Children's Hospital of Nanjing Medical University, Nanjing 210008, China
| | - L Tian
- Department of Otorhinolaryngology, Children's Hospital of Nanjing Medical University, Nanjing 210008, China
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11
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Wu L, Shen XF, Li Q, Chen WB. [A case of total deafness caused by traumatic pneumolabyrinth]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2019; 54:928-930. [PMID: 31887820 DOI: 10.3760/cma.j.issn.1673-0860.2019.12.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Affiliation(s)
- L Wu
- Department of Otorhinolaryngology, the Affiliated Children's Hospital of Nanjing Medical University, Nanjing 210008, China
| | - X F Shen
- Department of Otorhinolaryngology, the Affiliated Children's Hospital of Nanjing Medical University, Nanjing 210008, China
| | - Q Li
- Department of Otorhinolaryngology, the Affiliated Children's Hospital of Nanjing Medical University, Nanjing 210008, China
| | - W B Chen
- Department of Otorhinolaryngology, the Affiliated Children's Hospital of Nanjing Medical University, Nanjing 210008, China
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12
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Li YY, Shen XF. [A case of magnetic foreign bodies in pharynx]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2019; 54:934-936. [PMID: 31887822 DOI: 10.3760/cma.j.issn.1673-0860.2019.12.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Affiliation(s)
- Y Y Li
- Department of Otorhinolaryngology, Children's Hospital of Nanjing Medical University, Nanjing 210000, China
| | - X F Shen
- Department of Otorhinolaryngology, Children's Hospital of Nanjing Medical University, Nanjing 210000, China
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13
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Wang NN, Li R, Wu RG, Peng D, Li HX, Shen XF, Sun HY. Ancestry Inference Using the ForenSeq TM DNA Signature Prep Kit. Fa Yi Xue Za Zhi 2019; 35:560-566. [PMID: 31833289 DOI: 10.12116/j.issn.1004-5619.2019.05.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 06/05/2019] [Indexed: 06/10/2023]
Abstract
Objective To evaluate the effect of 56 ancestry informative single nucleotide polymorphism (aiSNP) genetic markers in the ForenSeqTM DNA Signature Prep Kit on ancestry inference. Methods A total of 85 samples from five populations including Hebei Han population, Inner Mongolia autonomous region Mongolian population, Tibet autonomous region Tibetan population, Xinjiang Uygur autonomous region Uygur population and Nigerian population were collected. The library was constructed with the ForenSeqTM DNA Signature Prep Kit and sequencing was performed based on the MiSeq FGx Forensic Genomics System. Using universal analysis software (UAS) of ForenSeqTM, principal component analysis (PCA), Structure and likelihood ratio method was used on the genotyping data of 56 aiSNP markers, respectively, and the genetic relationships between populations and inference of the origin of ancestors were analyzed. Results Among the five populations tested, the four ethnic populations in China (Hebei Han population, Inner Mongolia autonomous region Mongolian population, Tibet autonomous region Tibetan population and Xinjiang Uygur autonomous region Uygur population) could be significantly distinguished from Nigerian population. Xinjiang Uygur autonomous region Uygur individuals were shown as having mixed origins of ancestors and could be distinguished from the other three Chinese populations. However, the other three populations in China (Hebei Han population, Inner Mongolia autonomous region Mongolian population and Tibet autonomous region Tibetan population) could not be effectively distinguished by the system. Conclusion The 56 aiSNP markers in the ForenSeqTM DNA Signature Prep Kit can make accurate ancestry inference from the intercontinental level, but it is not yet able to distinguish between Chinese subpopulations.
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Affiliation(s)
- N N Wang
- Faculty of Forensic Medicine, Zhongshan Medical College, Sun Yat-sen University, Guangzhou 510089, China
| | - R Li
- Faculty of Forensic Medicine, Zhongshan Medical College, Sun Yat-sen University, Guangzhou 510089, China
| | - R G Wu
- Faculty of Forensic Medicine, Zhongshan Medical College, Sun Yat-sen University, Guangzhou 510089, China
| | - D Peng
- Faculty of Forensic Medicine, Zhongshan Medical College, Sun Yat-sen University, Guangzhou 510089, China
| | - H X Li
- Faculty of Forensic Medicine, Zhongshan Medical College, Sun Yat-sen University, Guangzhou 510089, China
| | - X F Shen
- Faculty of Forensic Medicine, Zhongshan Medical College, Sun Yat-sen University, Guangzhou 510089, China
| | - H Y Sun
- Faculty of Forensic Medicine, Zhongshan Medical College, Sun Yat-sen University, Guangzhou 510089, China
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14
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Affiliation(s)
- X Wang
- Women's Hospital of Nanjing Medical University, Nanjing Maternity and Child Health Care Hospital, Nanjing, China
| | - X F Shen
- Women's Hospital of Nanjing Medical University, Nanjing Maternity and Child Health Care Hospital, Nanjing, China
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Chen YC, Wei XE, Lu J, Qiao RH, Shen XF, Li YH. Correlation Between the Number of Lenticulostriate Arteries and Imaging of Cerebral Small Vessel Disease. Front Neurol 2019; 10:882. [PMID: 31456742 PMCID: PMC6699475 DOI: 10.3389/fneur.2019.00882] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2019] [Accepted: 07/30/2019] [Indexed: 01/22/2023] Open
Abstract
Background and purpose: Hypoperfusion plays an important role in the pathophysiology of cerebral small vessel disease (SVD). Lenticulostriate arteries (LSAs) are some of the most important cerebral arterial small vessels. This study aimed to investigate whether the number of LSAs was associated with the cerebral perfusion in SVD patients and determine the correlation between the number of LSAs and SVD severity. Methods: Five hundred and ninety-four consecutive patients who underwent digital subtraction angiography were enrolled in this study. The number of LSAs was determined. Computed tomography perfusion (CTP) was used to calculate the cerebral blood flow (CBF), cerebral blood volume (CBV), mean transit time (MTT), and time to peak (TTP). Magnetic resonance imaging (MRI) was performed to assess cerebral infarct, cerebral microbleeds (CMBs), white matter hyperintensities (WMHs), enlarged perivascular spaces (EPVSs), and lacunes. An SVD compound score was calculated to express the level of cerebral SVD load. Results: The SVD scores were negatively correlated with the number of the LSAs (P < 0.001, rs = −0.44). The number of LSAs was inversely associated with the presence of any type of SVD (P < 0.001). The adjusted ORs of the SVD severity were 0.31 for LSA group 1 (LSA > 20) vs. group 2 (LSA = 10–20) and 0.47 for LSA group 2 (LSA = 10–20) vs. group 3 (LSA < 10). MTT and TTP were significantly higher and CBF was significantly lower when the number of LSAs was between 5 and 10 on each side of the basal ganglia (P < 0.001, <0.001, and <0.001, respectively). The CBV was slightly lower when the number of LSAs was between 5 and 10, while it was significantly lower when the number was <5 on each side of the basal ganglia (P < 0.05, <0.0001, respectively). Conclusion: LSA count was lower in SVD patients than the non-SVD participants and there was a positive correlation between the cerebral perfusion and the number of LSAs. The LSA number was negatively associated with SVD severity, hypoperfusion might play an important role. This finding may have potentially important clinical implications for monitoring LSA in SVD patients.
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Affiliation(s)
- Yuan-Chang Chen
- Institute of Diagnostic and Interventional Radiology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Xiao-Er Wei
- Institute of Diagnostic and Interventional Radiology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Jing Lu
- Institute of Diagnostic and Interventional Radiology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Rui-Hua Qiao
- Institute of Diagnostic and Interventional Radiology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Xue-Feng Shen
- Institute of Diagnostic and Interventional Radiology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Yue-Hua Li
- Institute of Diagnostic and Interventional Radiology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
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Chen YC, Wei XE, Lu J, Qiao RH, Shen XF, Li YH. Correlation Between Intracranial Arterial Calcification and Imaging of Cerebral Small Vessel Disease. Front Neurol 2019; 10:426. [PMID: 31118918 PMCID: PMC6506782 DOI: 10.3389/fneur.2019.00426] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2018] [Accepted: 04/08/2019] [Indexed: 02/05/2023] Open
Abstract
Background and Purpose: Vascular calcification is part of the atherosclerotic process. Intracranial artery calcification is closely associated with cerebral small vessel disease (SVD). The present study aimed to investigate the distribution pattern of intracranial arterial calcification and its association with magnetic resonance imaging (MRI) markers of SVD in patients with acute ischemic cerebrovascular disease. Methods: Two hundred and seventy six consecutive patients with transient ischemic attack (TIA) or acute ischemic stroke who underwent both computed tomography (CT) angiography and MRI were enrolled in this study. Intracranial arterial calcium scores were evaluated using Agatston method. MRI was performed to assess cerebral infarction, white matter hyperintensities (WMHs), lacunes, cerebral microbleeds (CMBs), and enlarged perivascular spaces (EPVSs). Results: Intracranial artery calcification was present in 200 (72.46%) patients, with the highest prevalence in the internal carotid arteries (ICA) (64.8%). The severity of intracranial arterial calcification was associated with the presence of WMHs (P = 0.0001), lacunes (P = 0.0001), and CMBs (P = 0.0001); however, there was no association between calcifications and the presence of EPVSs (P = 0.058). The correlation coefficients (rs) were 0.350, 0.142, 0.285, and 0.251 for WMHs, EPVSs, lacunes, and CMBs, respectively. The adjusted odds ratios (ORs) of intracranial arterial calcification were: 2.747 for WMH (grade 1-2), 3.422 for WMH (grade 3), 2.902 for lacunes, 2.449 for CMB, 0.88 for EPVS (grade 1), and 0.295 for EPVS (grade 2-4). Conclusion: Intracranial artery calcification is common in patients with ischemic cerebrovascular disease and the intracranial carotid artery is most frequently affected. Intracranial arterial calcifications might be associated with imaging markers of SVD and are highly correlated with WMHs, lacunes, and CMBs. Quantification of calcification on CT provides additional information on the pathophysiology of SVD. Intracranial arterial calcification could act as a potential marker of SVD.
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Affiliation(s)
- Yuan-Chang Chen
- Institute of Diagnostic and Interventional Radiology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Xiao-Er Wei
- Institute of Diagnostic and Interventional Radiology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Jing Lu
- Institute of Diagnostic and Interventional Radiology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Rui-Hua Qiao
- Institute of Diagnostic and Interventional Radiology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Xue-Feng Shen
- Institute of Diagnostic and Interventional Radiology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Yue-Hua Li
- Institute of Diagnostic and Interventional Radiology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
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Shen XF, Wang Y, Li Q, Chen WB. [A case of esophageal tracheal fistula caused by button cell]. Lin Chung Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2018; 32:1590-1591. [PMID: 30400714 DOI: 10.13201/j.issn.1001-1781.2018.20.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 02/26/2018] [Indexed: 11/12/2022]
Abstract
Summary Button batteries are a common emergency in children with esophageal foreign bodies, which need to be removed in time,otherwise serious complications will occur. This article reports a case of esophageal tracheal fistula caused by button cell. It is helpful for differential diagnosis and clinical treatment of esophageal foreign bodies in children caused by button cell.
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Shi QL, Li Q, Shen XF. [Complicated airway foreign body in a child: a case report]. Lin Chuang Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2018; 32:1276-1277. [PMID: 30282176 DOI: 10.13201/j.issn.1001-1781.2018.16.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 09/11/2017] [Indexed: 06/08/2023]
Abstract
Summary A 9 year-old boy suffering from cough for half a month, fever for 4 days was hospitalized. CT three-dimensional reconstruction showed that a metallic needle-like foreign body within the right main bronchial with pneumonia and atelectasis. In the next day, the boy took examination using an open-tube rigid bronchoscope under general anesthesia. For the first time, the foreign body was jammed in glottis with SpO₂ and HR declining. For the second time, the operator found the foreign was not a needle but a thumbtack. Finally, the thumbtack was removed from the airway after short-term paralysis using succinylcholine.
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19
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Chen WB, Zhou ZR, Li Q, Shen XF. [Analysis of related factors of coins foreign bodies crossing the esophagus in 204 cases of children]. Lin Chung Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2018; 32:653-655. [PMID: 29771079 DOI: 10.13201/j.issn.1001-1781.2018.09.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 02/23/2018] [Indexed: 11/12/2022]
Abstract
Objective:To analyze the related factors of coins crossing the esophagus by themselves in children. Method:Two hundred and four cases with coin esophageal foreign bodies in our hospital from April 2016 to June 2017 were selected,the sex, age, size and texture of foreign body and the time of foreign body insertion were analyzed.Result:Of the 204 children, 46 had esophageal foreign bodies falling off the digestive tract below the esophagus,44 cases were discharged by themselves,2 children were removed under digestive endoscopy,1 coins formed diverticulum at the entrance of esophagus.Conclusion:Coins pass over the esophagus, basically seen within 24 hours,unrelated to age,sex or coin size,but related to the quality of the coin.
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Affiliation(s)
- W B Chen
- Department of Otorhinolaryngology, Children's Hospital of Nanjing Medical University, Nanjing,210008,China
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20
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Zhao ZH, Zheng G, Wang T, Du KJ, Han X, Luo WJ, Shen XF, Chen JY. Low-level Gestational Lead Exposure Alters Dendritic Spine Plasticity in the Hippocampus and Reduces Learning and Memory in Rats. Sci Rep 2018; 8:3533. [PMID: 29476096 PMCID: PMC5824819 DOI: 10.1038/s41598-018-21521-8] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2017] [Accepted: 02/05/2018] [Indexed: 11/24/2022] Open
Abstract
Lead (Pb) is known to impair children's cognitive function. It has been previously shown that developmental Pb exposure alters dendritic spine formation in hippocampal pyramidal neurons. However, the underlying mechanism has not yet been defined. In this study, a low-level gestational Pb exposure (GLE) rat model was employed to investigate the impact of Pb on the spine density of the hippocampal pyramidal neurons and its regulatory mechanism. Pb exposure resulted in impaired performance of the rats in the Morris water maze tasks, and in decreased EPSC amplitudes in hippocampal CA3-CA1 regions. With a 3D reconstruction by the Imaris software, the results from Golgi staining showed that the spine density in the CA1 region was reduced in the Pb-exposed rats in a dose-dependent manner. Decreased spine density was also observed in cultured hippocampal neurons following the Pb treatment. Furthermore, the expression level of NLGN1, a postsynaptic protein that mediates synaptogenesis, was significantly decreased following the Pb exposure both in vivo and in vitro. Up-regulation of NLGN1 in cultured primary neurons partially attenuated the impact of Pb on the spine density. Taken together, our resultssuggest that Pb exposure alters spine plasticity in the developing hippocampus by down-regulating NLGN1 protein levels.
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Affiliation(s)
- Zai-Hua Zhao
- Department of Occupational and Environmental Health and the Ministry of Education Key Lab of Hazard Assessment and Control in Special Operational Environment, School of Public Health, Fourth Military Medical University, No 169 of West Changle Road, Xi'an, Shaanxi, 710032, China
| | - Gang Zheng
- Department of Occupational and Environmental Health and the Ministry of Education Key Lab of Hazard Assessment and Control in Special Operational Environment, School of Public Health, Fourth Military Medical University, No 169 of West Changle Road, Xi'an, Shaanxi, 710032, China
| | - Tao Wang
- Department of Occupational and Environmental Health and the Ministry of Education Key Lab of Hazard Assessment and Control in Special Operational Environment, School of Public Health, Fourth Military Medical University, No 169 of West Changle Road, Xi'an, Shaanxi, 710032, China
| | - Ke-Jun Du
- Department of Occupational and Environmental Health and the Ministry of Education Key Lab of Hazard Assessment and Control in Special Operational Environment, School of Public Health, Fourth Military Medical University, No 169 of West Changle Road, Xi'an, Shaanxi, 710032, China
| | - Xiao Han
- Department of Occupational and Environmental Health and the Ministry of Education Key Lab of Hazard Assessment and Control in Special Operational Environment, School of Public Health, Fourth Military Medical University, No 169 of West Changle Road, Xi'an, Shaanxi, 710032, China
| | - Wen-Jing Luo
- Department of Occupational and Environmental Health and the Ministry of Education Key Lab of Hazard Assessment and Control in Special Operational Environment, School of Public Health, Fourth Military Medical University, No 169 of West Changle Road, Xi'an, Shaanxi, 710032, China
| | - Xue-Feng Shen
- Department of Occupational and Environmental Health and the Ministry of Education Key Lab of Hazard Assessment and Control in Special Operational Environment, School of Public Health, Fourth Military Medical University, No 169 of West Changle Road, Xi'an, Shaanxi, 710032, China.
| | - Jing-Yuan Chen
- Department of Occupational and Environmental Health and the Ministry of Education Key Lab of Hazard Assessment and Control in Special Operational Environment, School of Public Health, Fourth Military Medical University, No 169 of West Changle Road, Xi'an, Shaanxi, 710032, China.
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Shen XF, Xu YC, Meng JL. [Current advances in pathogenesis of autosomal recessive polycystic kidney disease]. Zhonghua Er Ke Za Zhi 2018; 56:157-160. [PMID: 29429209 DOI: 10.3760/cma.j.issn.0578-1310.2018.02.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
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22
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Shen XF, Shi QL, Li Q. [Misdiagnosis of esophageal diverticulum caused by coins: a case report]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2017; 52:936-938. [PMID: 29262454 DOI: 10.3760/cma.j.issn.1673-0860.2017.12.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Affiliation(s)
- X F Shen
- Department of Otorhinolaryngology, Children's Hospital of Nanjing Medical University, Nanjing 210008, China
| | - Q L Shi
- Department of Otorhinolaryngology, Children's Hospital of Nanjing Medical University, Nanjing 210008, China
| | - Q Li
- Department of Otorhinolaryngology, Children's Hospital of Nanjing Medical University, Nanjing 210008, China
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Shen XF, Qiao B, Zhang H, Kar S, Zhou CT, Chang HX, Borghesi M, He XT. Achieving Stable Radiation Pressure Acceleration of Heavy Ions via Successive Electron Replenishment from Ionization of a High-Z Material Coating. Phys Rev Lett 2017; 118:204802. [PMID: 28581776 DOI: 10.1103/physrevlett.118.204802] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/11/2016] [Indexed: 06/07/2023]
Abstract
A method to achieve stable radiation pressure acceleration (RPA) of heavy ions from laser-irradiated ultrathin foils is proposed, where a high-Z material coating in front is used. The coated high-Z material, acting as a moving electron repository, continuously replenishes the accelerating heavy ion foil with comoving electrons in the light-sail acceleration stage due to its successive ionization under laser fields with Gaussian temporal profile. As a result, the detrimental effects such as foil deformation and electron loss induced by the Rayleigh-Taylor-like and other instabilities in RPA are significantly offset and suppressed so that stable acceleration of heavy ions are maintained. Particle-in-cell simulations show that a monoenergetic Al^{13+} beam with peak energy 3.8 GeV and particle number 10^{10} (charge >20 nC) can be obtained at intensity 10^{22} W/cm^{2}.
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Affiliation(s)
- X F Shen
- Center for Applied Physics and Technology, HEDPS, State Key Laboratory of Nuclear Physics and Technology, and School of Physics, Peking University, Beijing 100871, China
- Collaborative Innovation Center of IFSA (CICIFSA), Shanghai Jiao Tong University, Shanghai 200240, China
| | - B Qiao
- Center for Applied Physics and Technology, HEDPS, State Key Laboratory of Nuclear Physics and Technology, and School of Physics, Peking University, Beijing 100871, China
- Collaborative Innovation Center of IFSA (CICIFSA), Shanghai Jiao Tong University, Shanghai 200240, China
- Collaborative Innovation Center of Extreme Optics, Shanxi University, Taiyuan, Shanxi 030006, China
| | - H Zhang
- Center for Applied Physics and Technology, HEDPS, State Key Laboratory of Nuclear Physics and Technology, and School of Physics, Peking University, Beijing 100871, China
- Institute of Applied Physics and Computational Mathematics, Beijing 100094, China
| | - S Kar
- Center for Plasma Physics, School of Mathematics and Physics, Queen's University Belfast, Belfast BT7 1NN, United Kingdom
| | - C T Zhou
- Center for Applied Physics and Technology, HEDPS, State Key Laboratory of Nuclear Physics and Technology, and School of Physics, Peking University, Beijing 100871, China
- Institute of Applied Physics and Computational Mathematics, Beijing 100094, China
| | - H X Chang
- Center for Applied Physics and Technology, HEDPS, State Key Laboratory of Nuclear Physics and Technology, and School of Physics, Peking University, Beijing 100871, China
| | - M Borghesi
- Center for Plasma Physics, School of Mathematics and Physics, Queen's University Belfast, Belfast BT7 1NN, United Kingdom
| | - X T He
- Center for Applied Physics and Technology, HEDPS, State Key Laboratory of Nuclear Physics and Technology, and School of Physics, Peking University, Beijing 100871, China
- Institute of Applied Physics and Computational Mathematics, Beijing 100094, China
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Shen XF, Huang P, Fox DA, Lin Y, Zhao ZH, Wang W, Wang JY, Liu XQ, Chen JY, Luo WJ. Adult lead exposure increases blood-retinal permeability: A risk factor for retinal vascular disease. Neurotoxicology 2016; 57:145-152. [DOI: 10.1016/j.neuro.2016.09.013] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2015] [Revised: 09/16/2016] [Accepted: 09/19/2016] [Indexed: 11/28/2022]
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Song H, Zheng G, Shen XF, Liu XQ, Luo WJ, Chen JY. Role of lead-induced Src activation in regulation of occludin expression level and the permeability of brain barriers. Neurotoxicol Teratol 2015. [DOI: 10.1016/j.ntt.2015.04.099] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Song H, Zheng G, Shen XF, Liu XQ, Luo WJ, Chen JY. Reduction of Brain Barrier Tight Junctional Proteins by Lead Exposure: Role of Activation of Nonreceptor Tyrosine Kinase Src via Chaperon GRP78. Toxicol Sci 2014; 138:393-402. [DOI: 10.1093/toxsci/kfu007] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Liu MC, Liu XQ, Wang W, Shen XF, Che HL, Guo YY, Zhao MG, Chen JY, Luo WJ. Involvement of microglia activation in the lead induced long-term potentiation impairment. PLoS One 2012; 7:e43924. [PMID: 22952811 PMCID: PMC3432044 DOI: 10.1371/journal.pone.0043924] [Citation(s) in RCA: 68] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2012] [Accepted: 07/26/2012] [Indexed: 11/21/2022] Open
Abstract
Exposure of Lead (Pb), a known neurotoxicant, can impair spatial learning and memory probably via impairing the hippocampal long-term potentiation (LTP) as well as hippocampal neuronal injury. Activation of hippocampal microglia also impairs spatial learning and memory. Thus, we raised the hypothesis that activation of microglia is involved in the Pb exposure induced hippocampal LTP impairment and neuronal injury. To test this hypothesis and clarify its underlying mechanisms, we investigated the Pb-exposure on the microglia activation, cytokine release, hippocampal LTP level as well as neuronal injury in in vivo or in vitro model. The changes of these parameters were also observed after pretreatment with minocycline, a microglia activation inhibitor. Long-term low dose Pb exposure (100 ppm for 8 weeks) caused significant reduction of LTP in acute slice preparations, meanwhile, such treatment also significantly increased hippocampal microglia activation as well as neuronal injury. In vitro Pb-exposure also induced significantly increase of microglia activation, up-regulate the release of cytokines including tumor necrosis factor-alpha (TNF-α), interleukin-1β (IL-1β) and inducible nitric oxide synthase (iNOS) in microglia culture alone as well as neuronal injury in the co-culture with hippocampal neurons. Inhibiting the microglia activation with minocycline significantly reversed the above-mentioned Pb-exposure induced changes. Our results showed that Pb can cause microglia activation, which can up-regulate the level of IL-1β, TNF-α and iNOS, these proinflammatory factors may cause hippocampal neuronal injury as well as LTP deficits.
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Affiliation(s)
- Ming-Chao Liu
- Department of Occupational & Environmental Health and the Ministry of Education Key Lab of Hazard Assessment and Control in Special Operational Environment, School of Public Health, Fourth Military Medical University, Xi'an, China
| | - Xin-Qin Liu
- Department of Occupational & Environmental Health and the Ministry of Education Key Lab of Hazard Assessment and Control in Special Operational Environment, School of Public Health, Fourth Military Medical University, Xi'an, China
| | - Wen Wang
- Department of Anatomy, Histology and Embryology, K.K. Leung Brain Research Centre, Fourth Military Medical University, Xi'an, China
| | - Xue-Feng Shen
- Department of Occupational & Environmental Health and the Ministry of Education Key Lab of Hazard Assessment and Control in Special Operational Environment, School of Public Health, Fourth Military Medical University, Xi'an, China
| | - Hong-Lei Che
- Department of Occupational & Environmental Health and the Ministry of Education Key Lab of Hazard Assessment and Control in Special Operational Environment, School of Public Health, Fourth Military Medical University, Xi'an, China
| | - Yan-Yan Guo
- Department of pharmacology, Fourth Military Medical University, Xi'an, China
| | - Ming-Gao Zhao
- Department of pharmacology, Fourth Military Medical University, Xi'an, China
| | - Jing-Yuan Chen
- Department of Occupational & Environmental Health and the Ministry of Education Key Lab of Hazard Assessment and Control in Special Operational Environment, School of Public Health, Fourth Military Medical University, Xi'an, China
- * E-mail: (J-YC); (W-JL)
| | - Wen-Jing Luo
- Department of Occupational & Environmental Health and the Ministry of Education Key Lab of Hazard Assessment and Control in Special Operational Environment, School of Public Health, Fourth Military Medical University, Xi'an, China
- * E-mail: (J-YC); (W-JL)
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Li Y, Wang YS, Shen XF, Hui YN, Han J, Zhao W, Zhu J. Alterations of activity and intracellular distribution of the 20S proteasome in ageing retinal pigment epithelial cells. Exp Gerontol 2008; 43:1114-22. [PMID: 18817863 DOI: 10.1016/j.exger.2008.08.052] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2008] [Revised: 08/24/2008] [Accepted: 08/25/2008] [Indexed: 11/17/2022]
Abstract
Age-related macular degeneration (AMD) remains high incidence and accounts for a main cause of blindness in ageing people, but its mechanism is still poorly understood. Ageing and associated dysfunction of retinal pigment epithelial (RPE) cells were believed to be the pathological onset of AMD. 20S proteasome has been tightly correlated with cell ageing due to its fundamental role in maintaining cellular homeostasis, but its implication in the ageing process of human RPE cells was seldom concerned. This study aimed to demonstrate the interconnections between 20S proteasome and ageing RPE cells by characterizing age-dependent alterations of the 20S proteasome in primarily cultured human RPE cells. For this purpose, a replicative ageing RPE cell model was established and validated through testing the cell viability, beta-galactosidase activity and cellular autofluorescence. Decline in chymotrypsin-like, peptidylglutamyl-peptide hydrolase and trypsin-like activities of the 20S proteasome was detected in aged RPE cells through degradation of fluorogenic substrates. Immunofluorescence assay revealed that the 20S proteasome was concentrated in RPE nucleus, and redistributed partly to the peri-nuclear regions in old RPE passages. These age-dependent changes of the 20S complex were accompanied with a significantly increased fluorescent intensity of intracellular oxidized proteins. Further analysis of the proteasome-to-oxidized protein ratio indicated a preferred protection of the RPE nuclear proteins by the 20S proteasome, which also subsided remarkably as a function of the cell ageing. In conclusion, we demonstrated functional impairment and redistribution of the 20S proteasome with age in human RPE cells and supposed these alterations impactful on the process of RPE cell ageing and furthermore on the pathogenesis of AMD. Future researches on the mechanism of these alterations and the pathways to manipulate their effects are still strongly recommended.
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Affiliation(s)
- Yue Li
- Department of Ophthalmology, Xijing Hospital, The Fourth Military Medical University and Eye Institute of PLA, Chang-le Road 17, Xi'an, Shaanxi 710032, China
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Li XY, Wu XY, Fu C, Shen XF, Yang CB, Wu YH. Effects of acute exposure to mild or moderate hypoxia on human psychomotor performance and visual-reaction time. Space Med Med Eng (Beijing) 2000; 13:235-9. [PMID: 11892743] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/18/2023]
Abstract
Objective. The aim of this study was to determine whether psychomotor performance and visual reaction time were affected by acute exposure to mild or moderate hypoxia. Method. Eighteen healthy male volunteers performed finger tapping, simple reaction time (SRT) and 4-choice reaction time (CRT) tests at simulated altitude of 300 m (control), 2800 m, 3600 m and 4400 m for 1 h in a hypobaric chamber. Result. SaO2 decreased from 98% (control) to 90%, 82% and 74% respectively at the various altitudes. All the performance parameters showed no significant change after exposure to 2800 m for 1 h relative to ground level (P>0.05). However the mean reaction time of 4-CRT under 3600 m prolonged and performance decreased as compared with baseline value (P<0.05), and the performance decreased further under 4400 m (P<0.01). No significant difference was found in finger tapping and SRT even under exposure to 4400 m for 1 h. Furthermore, no decrease in correct rate were observed at any altitude (P>0.05). Conclusion. The results from this study demonstrated that there were no measurable impairment of visual reaction time and psychomotor performance under exposure to an altitude of 2800 m for 1 h. However, adverse effects on psychomotor performance were observed under 3600 m and over.
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Affiliation(s)
- X Y Li
- Department of Aerospace Medicine, Fourth Military Medical University, Xi'an
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Li XY, Wu XY, Fu C, Shen XF, Wu YH, Wang T. Effects of acute mild and moderate hypoxia on human mood state. Space Med Med Eng (Beijing) 2000; 13:1-5. [PMID: 12212624] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/19/2023]
Abstract
OBJECTIVE To explore the effects of acute mild and moderate hypoxia on human mood state. METHOD The mood states of 18 healthy male volunteers were evaluated by self-assessment questionnaires, profile of mood state (POMS) and state anxiety inventory (S-AI) after random exposure to simulated altitude of 300 m (control), 2800 m, 3600 m and 4400 m for 1 h in a hypobaric chamber. RESULT The data at 300 m level were taken as the baseline control. The negative mood state factor points (tension, fatigue etc.) increased gradually as the altitude level increased while V (vigor-activity) points had a tendency to decrease (P<0.05 or P<0.01). No significant difference was found in the points of (D, A) even under exposure to 4400 m (P>0.05). At the early period of 2800 m exposure the tension points of POMS and S-AI scores were higher than those of control level (P<0.05) then dropped to baseline level when exposure to this altitude for 1 h. CONCLUSION Exposure to acute mild hypobaric hypoxia at 2800 m for 1 h has adverse effect on mood state of healthy person and the negative effect was further aggravated with the increment of altitude level.
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Affiliation(s)
- X Y Li
- Department of Aerospace Medicine (DAM), Fourth Military Medical University, Xi'an
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Shen XF. [Nursing of patients with mucocutaneous lymph node syndrome]. Zhonghua Hu Li Za Zhi 1988; 23:86-7. [PMID: 3383305] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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Ou JY, Yang SM, Luo GY, Shen XF, Hu SY, Li CM. [Local anesthetic effect of bupivacaine in ophthalmic operations]. Yan Ke Xue Bao 1987; 3:69-71. [PMID: 3508118] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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Fu Q, Yang PZ, Shen XF, Xu ZY. [Determination of specific antibodies, IgG, IgM and IgE, in schistosomiasis japonica by ELISA and its clinical significance]. Ji Sheng Chong Xue Yu Ji Sheng Chong Bing Za Zhi 1983; 1:78-82. [PMID: 6678657] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
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