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Galeano-Cabral JR, Schundelmier B, Oladehin O, Feng K, Ordonez JC, Baumbach RE, Wei K. Effect of Ni Doping on the Thermoelectric Properties of YbCo 2Zn 20. Materials (Basel) 2024; 17:1906. [PMID: 38673262 DOI: 10.3390/ma17081906] [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] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/21/2024] [Revised: 04/13/2024] [Accepted: 04/16/2024] [Indexed: 04/28/2024]
Abstract
Thermoelectric devices are both solid-state heat pumps and energy generators. Having a reversible process without moving parts is of high importance for applications in remote locations or under extreme conditions. Yet, most thermoelectric devices have a rather limited energy conversion efficiency due to the natural competition between high electrical conductivity and low thermal conductivity, both being essential conditions for achieving a high energy conversion efficiency. Heavy-fermion compounds YbT2Zn20 (T = Co, Rh, Ir) have been reported to be potential candidate materials for thermoelectric applications at low temperatures. Motivated by this result, we applied chemical substitution studies on the transition metal site in order to optimize the charge carrier concentration as well as promote more efficient phonon scatterings. Here, we present the latest investigation on the Ni-doped specimens YbCo2-xNixZn20, where enhanced thermoelectric figure of merit values have been obtained.
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Affiliation(s)
- Jorge R Galeano-Cabral
- FAMU-FSU College of Engineering, Florida State University, Tallahassee, FL 32310, USA
- National High Magnetic Field Laboratory, Florida State University, Tallahassee, FL 32310, USA
| | - Benny Schundelmier
- National High Magnetic Field Laboratory, Florida State University, Tallahassee, FL 32310, USA
- Department of Physics, Florida State University, Tallahassee, FL 32306, USA
| | - Olatunde Oladehin
- National High Magnetic Field Laboratory, Florida State University, Tallahassee, FL 32310, USA
- Department of Physics, Florida State University, Tallahassee, FL 32306, USA
| | - Keke Feng
- National High Magnetic Field Laboratory, Florida State University, Tallahassee, FL 32310, USA
- Department of Physics, Florida State University, Tallahassee, FL 32306, USA
| | - Juan C Ordonez
- FAMU-FSU College of Engineering, Florida State University, Tallahassee, FL 32310, USA
| | - Ryan E Baumbach
- National High Magnetic Field Laboratory, Florida State University, Tallahassee, FL 32310, USA
- Department of Physics, Florida State University, Tallahassee, FL 32306, USA
| | - Kaya Wei
- National High Magnetic Field Laboratory, Florida State University, Tallahassee, FL 32310, USA
- Department of Physics, Florida State University, Tallahassee, FL 32306, USA
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Wang Y, Li Z, Wu Y, Zhao G, Cheng Y, Feng K, Shaoya Y. Analysis of Factors Related to the Efficacy of Consciousness-regaining Therapy for Prolonged Disorder of Consciousness: A Retrospective Cohort Study. World Neurosurg 2024:S1878-8750(24)00574-6. [PMID: 38599375 DOI: 10.1016/j.wneu.2024.04.011] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2024] [Revised: 04/01/2024] [Accepted: 04/02/2024] [Indexed: 04/12/2024]
Abstract
OBJECTIVE To analyse the factors related to the efficacy of consciousness-regaining therapy for prolonged disorder of consciousness. METHODS A retrospective analysis was conducted on the case data of 114 patients with pDOC admitted to the Department of Functional Neurosurgery of Tianjin Huanhu Hospital from January 2019 to January 2022 to explore the relevant factors that affect the efficacy of consciousness-regaining therapy (CRT) for prolonged disorder of consciousness (pDOC). Next, basic information on the cases, data on pDOC disease assessment, CRT methods, and efficacy evaluation were collected. RESULTS These 114 patients were grouped, and a comparative analysis was done based on the efficacy at the end of treatment. Of these, 61 cases were allotted to the ineffective group and 53 cases to the effective group. There was a lack of statistical difference (P > 0.05) between the two groups based on gender, age, etiology, acute cerebral herniation, emergency craniotomy surgery, emergency decompressive craniectomy, time from onset to start of CRT, and CRT duration (P > 0.05). However, secondary hydrocephalus, CRT methods, CRS-R grading before treatment, and GOSE score at six months after treatment were found to be statistically different. The results of binary logistic regression analysis showed that the type of therapy (OR = 0.169, 95% CI: 0.057-0.508) affected the efficacy of CRT (P < 0.05). CONCLUSIONS Personalized awakening therapy using various invasive CRT methods could improve the efficacy of therapy for pDOC compared with non-invasive therapy.
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Affiliation(s)
- Yan'gang Wang
- Clinical College of Neurology, Neurosurgery and Neurorehabilitation, Tianjin Medical University, Tianjin 300070, China; Department of Neurosurgery,Jiaozuo People's Hospital, Jiaozuo,454000,Henan Province,China
| | - Zhongzhen Li
- Clinical College of Neurology, Neurosurgery and Neurorehabilitation, Tianjin Medical University, Tianjin 300070, China
| | - Yuzhang Wu
- Clinical College of Neurology, Neurosurgery and Neurorehabilitation, Tianjin Medical University, Tianjin 300070, China
| | - Guangrui Zhao
- Clinical College of Neurology, Neurosurgery and Neurorehabilitation, Tianjin Medical University, Tianjin 300070, China
| | - Yifeng Cheng
- Department of Neurosurgery, Tianjin Huanhu Hospital, Tianjin 300000, China
| | - Keke Feng
- Department of Neurosurgery, Tianjin Huanhu Hospital, Tianjin 300000, China
| | - Yin Shaoya
- Department of Neurosurgery, Tianjin Huanhu Hospital, Tianjin 300000, China.
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Yu S, Tong L, Shen J, Li C, Hu Y, Feng K, Shao J. Recent research progress based on ferroptosis-related signaling pathways and the tumor microenvironment on it effects. Eur J Med Chem 2024; 269:116290. [PMID: 38518522 DOI: 10.1016/j.ejmech.2024.116290] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2023] [Revised: 02/19/2024] [Accepted: 02/25/2024] [Indexed: 03/24/2024]
Abstract
The existing therapies for cancer are not remote satisfactory due to drug-resistance in tumors that are malignant. There is a pressing necessity to take a step forward to develop innovative therapies that can complement current ones. Multiple investigations have demonstrated that ferroptosis therapy, a non-apoptotic modality of programmed cell death, has tremendous potential in face of multiple crucial events, such as drug resistance and toxicity in aggressive malignancies. Recently, ferroptosis at the crosswalk of chemotherapy, materials science, immunotherapy, tumor microenvironment, and bionanotechnology has been presented to elucidate its therapeutic feasibility. Given the burgeoning progression of ferroptosis-based nanomedicine, the newest advancements in this field at the confluence of ferroptosis-inducers, nanotherapeutics, along with tumor microenvironment are given an overview. Here, the signaling pathways of ferroptosis-related were first talked about briefly. The emphasis discussion was placed on the pharmacological mechanisms and the nanodrugs design of ferroptosis inducing agents based on multiple distinct metabolism pathways. Additionally, a comprehensive overview of the action mechanisms by which the tumor microenvironment influences ferroptosis was elaborately descripted. Finally, some limitations of current researches and future research directions were also deliberately discussed to provide details about therapeutic avenues for ferroptosis-related diseases along with the design of anti-drugs.
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Affiliation(s)
- Shijing Yu
- Fujian Provincial Key Laboratory of Cancer Metastasis Chemoprevention and Chemotherapy, College of Chemistry, Fuzhou University, Fuzhou, Fujian 350108, China
| | - Lingwu Tong
- Fujian Provincial Key Laboratory of Cancer Metastasis Chemoprevention and Chemotherapy, College of Chemistry, Fuzhou University, Fuzhou, Fujian 350108, China
| | - Jiangwen Shen
- Fujian Provincial Key Laboratory of Cancer Metastasis Chemoprevention and Chemotherapy, College of Chemistry, Fuzhou University, Fuzhou, Fujian 350108, China
| | - Chenglei Li
- Fujian Provincial Key Laboratory of Cancer Metastasis Chemoprevention and Chemotherapy, College of Chemistry, Fuzhou University, Fuzhou, Fujian 350108, China
| | - Yongshan Hu
- Fujian Provincial Key Laboratory of Cancer Metastasis Chemoprevention and Chemotherapy, College of Chemistry, Fuzhou University, Fuzhou, Fujian 350108, China
| | - Keke Feng
- Fujian Provincial Key Laboratory of Cancer Metastasis Chemoprevention and Chemotherapy, College of Chemistry, Fuzhou University, Fuzhou, Fujian 350108, China
| | - Jingwei Shao
- Fujian Provincial Key Laboratory of Cancer Metastasis Chemoprevention and Chemotherapy, College of Chemistry, Fuzhou University, Fuzhou, Fujian 350108, China.
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Guo Q, Liu S, Wang L, Feng K, Yang S. Analysis of microstate features for Parkinson's disease based on reliability validation. J Neurosci Methods 2024; 406:110115. [PMID: 38531478 DOI: 10.1016/j.jneumeth.2024.110115] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2023] [Revised: 03/13/2024] [Accepted: 03/20/2024] [Indexed: 03/28/2024]
Abstract
BACKGROUND Parkinson's disease (PD) is a disorder with abnormal changes in brain activity. The lack of objective indicators makes the assessment of PD progression difficult. Assessment of brain activity changes in PD may offer a potential solution. NEW METHOD Electroencephalogram (EEG) microstates reflect global dynamic changes in the brain. Therefore, we utilized microstates to assess changes in PD brain activity. However, the effect of epoch duration on the reliability of microstate analyses in PD is unclear. Thus, we first assessed the effect of data duration on the reliability of microstate topography and temporal features in PD and older healthy individuals. According to the reliability assessment, EEG epochs with high reliability were selected for microstate analysis in PD. Finally, we investigated the correlation between microstate features and clinical scales to determine whether these features could serve as objective indicators to evaluate PD progression. RESULTS Microstate analysis features that show high reliability for 3min and above epoch durations. The topology of microstate D was significantly changed in PD compared to healthy controls, as well as the temporal features of microstates C and D. Additionally, the occurrence of C was negatively correlated with MoCA, and the duration of D was positively correlated with UPDRS. COMPARISON WITH EXISTING METHOD(S) High reliability of PD microstate features obtained by our approach. CONCLUSION EEG for PD microstate analysis should be at least 3min. Microstate analysis is expected to provide new ideas and objective indicators for assessing Parkinson's disease progression in the clinical setting.
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Affiliation(s)
- Qingfang Guo
- Hebei Key Laboratory of Bioelectromagnetics and Neural Engineering, School of Health Sciences and Biomedical Engineering, Hebei University of Technology, Tianjin300131, China; State Key Laboratory of Reliable and Intelligence of Electrical Equipment, Hebei University of Technology, Tianjin 300130, China
| | - Shuo Liu
- Hebei Key Laboratory of Bioelectromagnetics and Neural Engineering, School of Health Sciences and Biomedical Engineering, Hebei University of Technology, Tianjin300131, China; State Key Laboratory of Reliable and Intelligence of Electrical Equipment, Hebei University of Technology, Tianjin 300130, China
| | - Lei Wang
- Hebei Key Laboratory of Bioelectromagnetics and Neural Engineering, School of Health Sciences and Biomedical Engineering, Hebei University of Technology, Tianjin300131, China; State Key Laboratory of Reliable and Intelligence of Electrical Equipment, Hebei University of Technology, Tianjin 300130, China
| | - Keke Feng
- Department of Neurosurgery, Tianjin Huanhu Hospital, Tianjin, China.
| | - Shuo Yang
- Hebei Key Laboratory of Bioelectromagnetics and Neural Engineering, School of Health Sciences and Biomedical Engineering, Hebei University of Technology, Tianjin300131, China; State Key Laboratory of Reliable and Intelligence of Electrical Equipment, Hebei University of Technology, Tianjin 300130, China.
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Cheng Y, Zhao G, Chen L, Cui D, Wang C, Feng K, Yin S. Effects of subthalamic nucleus deep brain stimulation using different frequency programming paradigms on axial symptoms in advanced Parkinson's disease. Acta Neurochir (Wien) 2024; 166:124. [PMID: 38457027 DOI: 10.1007/s00701-024-06005-1] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Accepted: 02/02/2024] [Indexed: 03/09/2024]
Abstract
BACKGROUND In advanced Parkinson's disease (PD), axial symptoms are common and can be debilitating. Although deep brain stimulation (DBS) significantly improves motor symptoms, conventional high-frequency stimulation (HFS) has limited effectiveness in improving axial symptoms. In this study, we investigated the effects on multiple axial symptoms after DBS surgery with three different frequency programming paradigms comprising HFS, low-frequency stimulation (LFS), and variable-frequency stimulation (VFS). METHODS This study involved PD patients who had significant preoperative axial symptoms and underwent bilateral subthalamic nucleus (STN) DBS. Axial symptoms, motor symptoms, medications, and quality of life were evaluated preoperatively (baseline). One month after surgery, HFS was applied. At 6 months post-surgery, HFS assessments were performed, and HFS was switched to LFS. A further month later, we conducted LFS assessments and switched LFS to VFS. At 8 months after surgery, VFS assessments were performed. RESULTS Of the 21 PD patients initially enrolled, 16 patients were ultimately included in this study. Regarding HFS, all axial symptoms except for the Berg Balance Scale (p < 0.0001) did not improve compared with the baseline (all p > 0.05). As for LFS and VFS, all axial symptoms improved significantly compared with both the baseline and HFS (all p < 0.05). Moreover, motor symptoms and medications were significantly better than the baseline (all p < 0.05) after using LFS and VFS. Additionally, the quality of life of the PD patients after receiving LFS and VFS was significantly better than at the baseline and with HFS (all p < 0.0001). CONCLUSION Our findings indicate that HFS is ineffective at improving the majority of axial symptoms in advanced PD. However, both the LFS and VFS programming paradigms exhibit significant improvements in various axial symptoms.
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Affiliation(s)
- Yifeng Cheng
- Department of Functional Neurosurgery, Huanhu Hospital, Tianjin University, Tianjin, 300350, China
- Clinical College of Neurology, Neurosurgery and Neurorehabilitation, Tianjin Medical University, Tianjin, 300350, China
| | - Guangrui Zhao
- Clinical College of Neurology, Neurosurgery and Neurorehabilitation, Tianjin Medical University, Tianjin, 300350, China
| | - Lei Chen
- Department of Neurology, Huanhu Hospital, Tianjin University, Tianjin, 300350, China
| | - Deqiu Cui
- Department of Functional Neurosurgery, Huanhu Hospital, Tianjin University, Tianjin, 300350, China
| | - Chunjuan Wang
- Department of Functional Neurosurgery, Huanhu Hospital, Tianjin University, Tianjin, 300350, China
| | - Keke Feng
- Department of Functional Neurosurgery, Huanhu Hospital, Tianjin University, Tianjin, 300350, China.
| | - Shaoya Yin
- Department of Functional Neurosurgery, Huanhu Hospital, Tianjin University, Tianjin, 300350, China.
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Yin N, Wang H, Wang Z, Feng K, Xu G, Yin S. A study of brain networks associated with Freezing of gait in Parkinson's disease using transfer entropy analysis. Brain Res 2023; 1821:148610. [PMID: 37783260 DOI: 10.1016/j.brainres.2023.148610] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Revised: 09/22/2023] [Accepted: 09/27/2023] [Indexed: 10/04/2023]
Abstract
BACKGROUND Parkinson's disease (PD) is a common neurodegenerative disease in the elderly. Freezing of Gait (FOG) is one of the common motor symptoms of PD, but the potential mechanism remains unclear. This study aimed to investigate the changes of brain functional network topology in PD patients with FOG. METHODS The resting electroencephalogram (EEG) were acquired from15 PD patients with FOG (PD-FOG), 13 PD patients without FOG (PD-nFOG), and 16 healthy control (HC). Cognitive and motor functions were assessed using subjective scales. The whole-brain functional networks were constructed based on transfer entropy. Transfer entropy was used to analyse the information flow and causality in the network and the network connectivity was analyzed by graph theory. The characteristics of PD-FOG and PD-nFOG were compared by receiver operator characteristic (ROC) curve analysis. RESULTS The θ bands brain network of PD-FOG, PD-nFOG and HC group was significantly different (P < 0.05). The average characteristic path length of the θ bands brain network was positively correlated with FOG Questionnaire (FOGQ). PD-FOG and PD-nFOG get high classification accuracy according to this feature. The information inflow in the frontal and occipital lobes and information outflow in the temporal lobe of PD-FOG patients in the θ bands increased significantly. CONCLUSIONS The whole-brain functional network characteristics of PD-FOG in the θ bands can serve as potential biomarkers for early diagnosis of PD-FOG. Abnormal information flow of the frontal, occipital, and temporal lobes in the θ bands may be an important factor leading to FOG.
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Affiliation(s)
- Ning Yin
- State Key Laboratory of Reliability and Intelligence of Electrical Equipment, Hebei University of Technology, Tianjin 300130, China; Tianjin Key Laboratory of Bioelectromagnetic Technology and Intelligent Health, Hebei University of Technology, Tianjin 300130, China; School of Health Sciences and Biomedical Engineering, Hebei University of Technology, Tianjin 300130, China
| | - Haili Wang
- State Key Laboratory of Reliability and Intelligence of Electrical Equipment, Hebei University of Technology, Tianjin 300130, China; Tianjin Key Laboratory of Bioelectromagnetic Technology and Intelligent Health, Hebei University of Technology, Tianjin 300130, China; School of Health Sciences and Biomedical Engineering, Hebei University of Technology, Tianjin 300130, China
| | - Zhaoya Wang
- State Key Laboratory of Reliability and Intelligence of Electrical Equipment, Hebei University of Technology, Tianjin 300130, China; Tianjin Key Laboratory of Bioelectromagnetic Technology and Intelligent Health, Hebei University of Technology, Tianjin 300130, China; School of Health Sciences and Biomedical Engineering, Hebei University of Technology, Tianjin 300130, China
| | - Keke Feng
- Department of Neurosurgery, Tianjin Huanhu Hospital, Tianjin 300350, China
| | - Guizhi Xu
- State Key Laboratory of Reliability and Intelligence of Electrical Equipment, Hebei University of Technology, Tianjin 300130, China; Tianjin Key Laboratory of Bioelectromagnetic Technology and Intelligent Health, Hebei University of Technology, Tianjin 300130, China; School of Health Sciences and Biomedical Engineering, Hebei University of Technology, Tianjin 300130, China.
| | - Shaoya Yin
- Department of Neurosurgery, Tianjin Huanhu Hospital, Tianjin 300350, China.
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Zhao G, Cheng Y, Wang M, Wu Y, Yan J, Feng K, Yin S. Exploring the network effects of deep brain stimulation for rapid eye movement sleep behavior disorder in Parkinson's disease. Acta Neurochir (Wien) 2023; 165:3375-3384. [PMID: 37770797 DOI: 10.1007/s00701-023-05806-0] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Accepted: 09/07/2023] [Indexed: 09/30/2023]
Abstract
BACKGROUND The research findings on the effects of subthalamic nucleus (STN) deep brain stimulation (DBS) in Parkinson's disease (PD) with Rapid Eye Movement Sleep Behavior Disorder (RBD) are inconsistent, and there is a lack of research on DBS electrode sites and their network effects for the explanation of the differences. Our objective is to explore the optimal stimulation sites (that is the sweet spot) and the brain network effects of STN-DBS for RBD in PD. METHODS In this study, among the 50 PD patients who underwent STN-DBS treatment, 24 PD patients with RBD were screened. According to clinical scores and imaging data, the sweet spot of STN-DBS was analyzed in PD patients with RBD, and the optimal structure and functional network models of subthalamic stimulation were constructed. RESULTS Bilateral STN-DBS can effectively improve the symptoms of RBD and other non-motor symptoms in 24 PD patients with RBD. RBD Questionnaire-Hong Kong (RBDQ-HK) score was 41.33 ± 17.45 at baseline and 30.83 ± 15.83 at 1-year follow-up, with statistical significance between them (P < 0.01). However, the MoCA score was an exception with a baseline of 22.04 ± 4.28 and a 1-year follow-up of 21.58 ± 4.33, showing no statistical significance (P = 0.12). The sweet spot and optimal network connectivity models for RBD improvement have been validated as effective. CONCLUSIONS Bilateral STN-DBS can improve the symptoms of RBD in PD. There exist the sweet spot and brain network effects of bilateral STN-DBS in the treatment of PD with RBD. Our study also demonstrates that RBD is a brain network disease.
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Affiliation(s)
- Guangrui Zhao
- Clinical College of Neurology, Neurosurgery and Neurorehabilitation, Tianjin Medical University, Tianjin, 300070, China
- Department of Neurosurgery, Lu'an Hospital Affiliated to Anhui Medical University, Lu'an, 237000, China
| | - Yifeng Cheng
- Clinical College of Neurology, Neurosurgery and Neurorehabilitation, Tianjin Medical University, Tianjin, 300070, China
- Department of Neurosurgery, Huanhu Hospital, Tianjin University, Tianjin, 300350, China
| | - Min Wang
- Department of Neurology, Huanhu Hospital, Tianjin University, Tianjin, 300350, China
| | - Yuzhang Wu
- Clinical College of Neurology, Neurosurgery and Neurorehabilitation, Tianjin Medical University, Tianjin, 300070, China
| | - Jingtao Yan
- Clinical College of Neurology, Neurosurgery and Neurorehabilitation, Tianjin Medical University, Tianjin, 300070, China
| | - Keke Feng
- Department of Neurosurgery, Huanhu Hospital, Tianjin University, Tianjin, 300350, China.
| | - Shaoya Yin
- Clinical College of Neurology, Neurosurgery and Neurorehabilitation, Tianjin Medical University, Tianjin, 300070, China.
- Department of Neurosurgery, Huanhu Hospital, Tianjin University, Tianjin, 300350, China.
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Brussow J, Feng K, Thiam F, Phogat S, Osei ET. Epithelial-fibroblast interactions in IPF: Lessons from in vitro co-culture studies. Differentiation 2023; 134:11-19. [PMID: 37738701 DOI: 10.1016/j.diff.2023.09.001] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Revised: 08/19/2023] [Accepted: 09/10/2023] [Indexed: 09/24/2023]
Abstract
Idiopathic pulmonary fibrosis (IPF) is a progressive interstitial disease that is characterized by increased cellular proliferation and differentiation together with excessive extracellular matrix (ECM) deposition leading to buildup of scar tissue (fibrosis) and remodeling in the lungs. The activated and differentiated (myo)fibroblasts are one of the main sources of tissue remodeling in IPF and a crucial mechanism known to contribute to this feature is an aberrant crosstalk between pulmonary fibroblasts and the abnormal or injured pulmonary epithelium. This epithelial-fibroblast interaction mimics the temporal, spatial and cell-type specific crosstalk between the endoderm and mesoderm in the so-called epithelial-mesenchymal trophic unit (EMTU) during lung development that is proposed to be activated in healthy lung repair and dysregulated in various lung diseases including IPF. To study the dysregulated lung EMTU in IPF, various complex in vitro models have been established. Hence, in this review, we will provide a summary of studies that have used complex (3-dimensional) in vitro co-culture, and organoid models to assess how abnormal epithelial-fibroblast interactions in lung EMTU contribute to crucial features of the IPF including defective cellular differentiation, proliferation and migration as well as increased ECM deposition.
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Affiliation(s)
- J Brussow
- Department of Biology, Okanagan Campus, University of British Columbia, Kelowna, BC, Canada
| | - K Feng
- Department of Biology, Okanagan Campus, University of British Columbia, Kelowna, BC, Canada
| | - F Thiam
- Department of Biology, Okanagan Campus, University of British Columbia, Kelowna, BC, Canada
| | - S Phogat
- Department of Biology, Okanagan Campus, University of British Columbia, Kelowna, BC, Canada
| | - E T Osei
- Department of Biology, Okanagan Campus, University of British Columbia, Kelowna, BC, Canada; Centre for Heart Lung Innovation, St. Paul's Hospital, Vancouver, BC, V6Z 1Y6, Canada.
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Wu Y, Li Z, Qu R, Wang Y, Li Z, Wang L, Zhao G, Feng K, Cheng Y, Yin S. Electroencephalogram-Based Brain Connectivity Analysis in Prolonged Disorders of Consciousness. Neural Plast 2023; 2023:4142053. [PMID: 37113750 PMCID: PMC10129427 DOI: 10.1155/2023/4142053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2023] [Revised: 03/03/2023] [Accepted: 04/02/2023] [Indexed: 04/29/2023] Open
Abstract
Background Prolonged disorders of consciousness (pDOC) are common in neurology and place a heavy burden on families and society. This study is aimed at investigating the characteristics of brain connectivity in patients with pDOC based on quantitative EEG (qEEG) and extending a new direction for the evaluation of pDOC. Methods Participants were divided into a control group (CG) and a DOC group by the presence or absence of pDOC. Participants underwent magnetic resonance imaging (MRI) T1 three-dimensional magnetization with a prepared rapid acquisition gradient echo (3D-T1-MPRAGE) sequence, and video EEG data were collected. After calculating the power spectrum by EEG data analysis tool, DTABR ((δ + θ)/(α + β) ratio), Pearson's correlation coefficient (Pearson r), Granger's causality, and phase transfer entropy (PTE), we performed statistical analysis between two groups. Finally, receiver operating characteristic (ROC) curves of connectivity metrics were made. Results The proportion of power in frontal, central, parietal, and temporal regions in the DOC group was lower than that in the CG. The percentage of delta power in the DOC group was significantly higher than that in the CG, the DTABR in the DOC group was higher than that in the CG, and the value was inverted. The Pearson r of the DOC group was higher than that of CG. The Pearson r of the delta band (Z = -6.71, P < 0.01), theta band (Z = -15.06, P < 0.01), and alpha band (Z = -28.45, P < 0.01) were statistically significant. Granger causality showed that the intensity of directed connections between the two hemispheres in the DOC group at the same threshold was significantly reduced (Z = -82.43, P < 0.01). The PTE of each frequency band in the DOC group was lower than that in the CG. The PTE of the delta band (Z = -42.68, P < 0.01), theta band (Z = -56.79, P < 0.01), the alpha band (Z = -35.11, P < 0.01), and beta band (Z = -63.74, P < 0.01) had statistical significance. Conclusion Brain connectivity analysis based on EEG has the advantages of being noninvasive, convenient, and bedside. The Pearson r of DTABR, delta, theta, and alpha bands, Granger's causality, and PTE of the delta, theta, alpha, and beta bands can be used as biological markers to distinguish between pDOC and healthy people, especially when behavior evaluation is difficult or ambiguous; it can supplement clinical diagnosis.
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Affiliation(s)
- Yuzhang Wu
- Clinical College of Neurology, Neurosurgery, and Neurorehabilitation, Tianjin Medical University, Tianjin 300000, China
| | - Zhitao Li
- Department of Neurosurgery, Tianjin Huanhu Hospital, Tianjin 300000, China
| | - Ruowei Qu
- State Key Laboratory of Reliability and Intelligence of Electrical Equipment, Hebei University of Technology, Tianjin 300000, China
| | - Yangang Wang
- Clinical College of Neurology, Neurosurgery, and Neurorehabilitation, Tianjin Medical University, Tianjin 300000, China
| | - Zhongzhen Li
- Department of Neurosurgery, Tianjin Huanhu Hospital, Tianjin 300000, China
| | - Le Wang
- Department of Neurosurgery, Tianjin Huanhu Hospital, Tianjin 300000, China
| | - Guangrui Zhao
- Clinical College of Neurology, Neurosurgery, and Neurorehabilitation, Tianjin Medical University, Tianjin 300000, China
| | - Keke Feng
- Department of Neurosurgery, Tianjin Huanhu Hospital, Tianjin 300000, China
| | - Yifeng Cheng
- Department of Neurosurgery, Tianjin Huanhu Hospital, Tianjin 300000, China
| | - Shaoya Yin
- Department of Neurosurgery, Tianjin Huanhu Hospital, Tianjin 300000, China
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Thiam F, Yazeedi SA, Feng K, Phogat S, Demirsoy E, Brussow J, Abokor FA, Osei ET. Understanding fibroblast-immune cell interactions via co-culture models and their role in asthma pathogenesis. Front Immunol 2023; 14:1128023. [PMID: 36911735 PMCID: PMC9996007 DOI: 10.3389/fimmu.2023.1128023] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Accepted: 02/10/2023] [Indexed: 02/25/2023] Open
Abstract
Asthma is a chronic lung disease involving airway inflammation and fibrosis. Fibroblasts are the main effector cells important for lung tissue production which becomes abnormal in asthmatics and is one of the main contributors to airway fibrosis. Although fibroblasts were traditionally viewed solely as structural cells, they have been discovered to be highly active, and involved in lung inflammatory and fibrotic processes in asthma. In line with this, using 2D and 3D in vitro co-culture models, a complex interaction between lung fibroblasts and various immune cells important for the pathogenesis of asthma have been recently uncovered. Hence, in this review, we provide the first-ever summary of various studies that used 2D and 3D in vitro co-culture models to assess the nature of aberrant immune cell-fibroblast interactions and their contributions to chronic inflammation and fibrotic mechanisms in asthma pathogenesis.
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Affiliation(s)
- F Thiam
- Department of Biology, University of British Columbia, Kelowna, BC, Canada
| | - S Al Yazeedi
- Department of Biology, University of British Columbia, Kelowna, BC, Canada
| | - K Feng
- Department of Biology, University of British Columbia, Kelowna, BC, Canada
| | - S Phogat
- Department of Biology, University of British Columbia, Kelowna, BC, Canada
| | - E Demirsoy
- Department of Biology, University of British Columbia, Kelowna, BC, Canada
| | - J Brussow
- Department of Biology, University of British Columbia, Kelowna, BC, Canada
| | - F A Abokor
- Department of Biology, University of British Columbia, Kelowna, BC, Canada
| | - E T Osei
- Department of Biology, University of British Columbia, Kelowna, BC, Canada.,Centre for Heart Lung Innovation, St. Paul's Hospital, Vancouver, BC, Canada
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Wu Y, Li Z, Feng K, Cheng Y, Wang Y, Yin S. Prognostic factors of prolonged disorder of consciousness after stroke: A single centre retrospective study. Journal of Neurorestoratology 2022. [DOI: 10.1016/j.jnrt.2022.100032] [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: 11/17/2022] Open
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12
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Oladehin O, Feng K, Haddock JW, Galeano-Cabral J, Wei K, Xin Y, Latturner SE, Baumbach RE. Mn substitution in the topological metal Zr 2Te 2P. J Phys Condens Matter 2022; 34:485501. [PMID: 36195084 DOI: 10.1088/1361-648x/ac9770] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/18/2022] [Accepted: 10/04/2022] [Indexed: 06/16/2023]
Abstract
Results are reported for Mn intercalated Zr2Te2P, where x-ray diffraction , energy dispersive spectroscopy, and transmission electron microscopy measurements reveal that the van der Waals bonded Te-Te layers are partially filled by Zr and Mn ions. This leads to the chemical formulas Zr0.07Zr2Te2P and Mn0.06Zr0.03Zr2Te2P for the parent and substituted compounds, respectively. The impact of the Mn ions is seen in the anisotropic magnetic susceptibility, where Curie-Weiss fits to the data indicate that the Mn ions are in the divalent state. Heat capacity and electrical transport measurements reveal metallic behavior, but the electronic coefficient of the heat capacity (γMn≈ 36.6 mJ (mol·K2)-1) is enhanced by comparison to that of the parent compound. Magnetic ordering is seen atTM≈4 K, where heat capacity measurements additionally show that the phase transition is broad, likely due to the disordered Mn distribution. This transition also strongly reduces the electronic scattering seen in the normalized electrical resistance. These results show that Mn substitution simultaneously introduces magnetic interactions and tunes the electronic state, which improves prospects for inducing novel behavior in Zr2Te2P and the broader family of ternary tetradymites.
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Affiliation(s)
- O Oladehin
- National High Magnetic Field Laboratory, Florida State University, Tallahassee, FL 32310, United States of America
- Department of Physics, Florida State University, Tallahassee, FL 32306, United States of America
| | - K Feng
- National High Magnetic Field Laboratory, Florida State University, Tallahassee, FL 32310, United States of America
- Department of Physics, Florida State University, Tallahassee, FL 32306, United States of America
| | - J W Haddock
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, FL 32306, United States of America
| | - J Galeano-Cabral
- National High Magnetic Field Laboratory, Florida State University, Tallahassee, FL 32310, United States of America
- Department of Mechanical Engineering, Florida State University, Tallahassee, FL 32306, United States of America
| | - K Wei
- National High Magnetic Field Laboratory, Florida State University, Tallahassee, FL 32310, United States of America
| | - Y Xin
- National High Magnetic Field Laboratory, Florida State University, Tallahassee, FL 32310, United States of America
| | - S E Latturner
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, FL 32306, United States of America
| | - R E Baumbach
- National High Magnetic Field Laboratory, Florida State University, Tallahassee, FL 32310, United States of America
- Department of Physics, Florida State University, Tallahassee, FL 32306, United States of America
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Haddock JW, Barton ZJ, Feng K, Baumbach RE, Zhang Q, Latturner SE. Flux Growth of Cerium Nickel Gallides Studied by In Situ Neutron Diffraction. Inorg Chem 2022; 61:15645-15653. [PMID: 36121353 DOI: 10.1021/acs.inorgchem.2c02588] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Reactions of cerium and nickel in excess molten gallium were monitored by neutron diffraction during heating and cooling. The formation of binary intermediates CeGa2 and Ni2Ga3 was observed during heating. During cooling of the molten mixture from 900 °C, precipitation of BaAl4-type CeNi0.74Ga3.26 occurred at 850 °C. Upon cooling to 650 °C, this compound reacted in the flux to form Ce2NiGa10 and then Ce2NiGa12, the latter of which persisted to room temperature. Making use of this information, subsequent reactions were quenched at 750 °C to isolate crystals of CeNi0.74Ga3.26 for further study. Similar reactions replacing Ce with La and quenching above 750 °C yielded LaNi0.35Ga3.65 crystals. Magnetic susceptibility studies on CeNi0.74Ga3.26 indicate that the cerium is trivalent; the Ce3+ moments undergo a strongly anisotropic ferromagnetic ordering with moment perpendicular to the c axis below 7 K. Heat capacity data show little evidence of heavy fermion behavior. Resistivity measurements show that both LaNi0.35Ga3.65 and CeNi0.74Ga3.26 exhibit metallic behavior. Density of states calculations support this and indicate that Ni/Ga mixing in the compound stabilizes the structure.
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Affiliation(s)
- Jo W Haddock
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, Florida 32306, United States
| | - Zach J Barton
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, Florida 32306, United States
| | - Keke Feng
- FSU Department of Physics and National High Magnetic Field Laboratory, Tallahassee, Florida 32306, United States
| | - Ryan E Baumbach
- FSU Department of Physics and National High Magnetic Field Laboratory, Tallahassee, Florida 32306, United States
| | - Qiang Zhang
- Neutron Scattering Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
| | - Susan E Latturner
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, Florida 32306, United States
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Liu HY, Li J, Huang DR, Feng K, Liu JH, He QN, Guo KY, Ding GY, Lou Y, Wang Y. [Early warning of low maternal unconjugated estriol level by prenatal screening for fetus with X-linked ichthyosis]. Zhonghua Fu Chan Ke Za Zhi 2022; 57:407-412. [PMID: 35775247 DOI: 10.3760/cma.j.cn112141-20220125-00043] [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
Objective: To analyze the characteristic of prenatal serological screening in fetus with X-linked ichthyosis (XLI), and to explore the relationship between unconjugated estriol (uE3) levels and XLI. Methods: A total of 56 fetuses with Xp22.31 microdeletion indicated by prenatal diagnosis and 70 fetuses diagnosed with trisomy 21 and 26 fetuses with trisomy 18 in Henan Provincial People's Hospital and Affiliated Hospital of Weifang Medical College from September 2016 to June 2021 were collected. The multiples of median (MoM) values of uE3, alpha-fetoprotein (AFP), and human chorionic gonadotropin (hCG) during the second trimester of pregnancy were retrospectively analyzed. Prenatal diagnosis was made by amniotic fluid karyotype analysis and genome copy number variant analysis, parent genetic verification and pathogenicity analysis were performed, and maternal and infant outcomes were followed up. Results: Of 56 pregnant women with fetal Xp22.31 microdeletion, 43 underwent serological screening during the second trimester of pregnancy, of which 42 were abnormal (39 male fetuses and 3 female fetuses). The median uE3 MoM value of 39 male fetuses [0.06 (0.00-0.21)] was lower than the normal value and significantly lower than that of fetuses with trisomy 21 [0.71 (0.26-1.27)] and fetuses with trisomy 18 [0.36 (0.15-0.84)], the difference was statistically significant (Z=99.96, P<0.001). While the MoM values of AFP and hCG were all within the normal range. Among the 56 fetuses carrying Xp22.31 microdeletion, 45 were male fetuses and 11 were female fetuses, and the deletion fragments all involved STS gene. Eighty-nine percent (50/56) were inherited from mother (49 cases) or father (1 case), and 11% (6/56) were de novo mutations. Follow-up showed 48 live births (38 males and 10 females) and 8 chose to terminate pregnancy (7 males and 1 female). Among the 38 male newborns, 37 presented with scaly skin changes from 1 to 3 months of age, and one had no clinical manifestations until 4 months after birth. Ten female newborns had no obvious clinical manifestations. Conclusions: The decrease levels of uE3 MoM on maternal serological screening is closely related to the higher risk of XLI in male fetuses. For pregnant women with low uE3 in serological screening or with family history of ichthyosis, in addition to chromosomal karyotype analysis, joint detection of genomic copy number variant analysis should be recommended.
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Affiliation(s)
- H Y Liu
- Department of Medical Genetics Center, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, Zhengzhou 450003, China
| | - J Li
- Department of Medical Genetics Center, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, Zhengzhou 450003, China
| | - D R Huang
- Department of Medical Genetics Center, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, Zhengzhou 450003, China
| | - K Feng
- Department of Medical Genetics and Prenatal Diagnosis, Affiliated Hospital of Weifang Medical University, Weifang 261000, China
| | - J H Liu
- Department of Obstetrics and Gynecology, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, Zhengzhou 450003, China
| | - Q N He
- Department of Medical Genetics Center, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, Zhengzhou 450003, China
| | - K Y Guo
- Department of Medical Genetics Center, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, Zhengzhou 450003, China
| | - G Y Ding
- Department of Medical Genetics Center, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, Zhengzhou 450003, China
| | - Y Lou
- Department of Medical Genetics Center, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, Zhengzhou 450003, China
| | - Yue Wang
- Department of Obstetrics and Gynecology, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, Zhengzhou 450003, China
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Yu XM, Feng K, Ren QG, Ji H, Li X, Han CJ, Pan XL, Yuan Y. [Nasal seromucinous hamartoma: a case report]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2022; 57:743-745. [PMID: 35725321 DOI: 10.3760/cma.j.cn115330-20210722-00477] [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: 06/15/2023]
Affiliation(s)
- X M Yu
- NHC Key Laboratory of Otorhinolaryngology (Shandong University), Jinan 250102, China Department of Otorhinolaryngology Head and Neck Surgery, Qilu Hospital (Qingdao), Shandong University, Qingdao 266035, China
| | - K Feng
- Department of Pathology, Qilu Hospital (Qingdao), Shandong University, Qingdao 266035, China
| | - Q G Ren
- Radiological Department, Qilu Hospital (Qingdao), Shandong University, Qingdao 266035, China
| | - H Ji
- Department of Pathology, Qilu Hospital (Qingdao), Shandong University, Qingdao 266035, China
| | - X Li
- Department of Otorhinolaryngology Head and Neck Surgery, Qilu Hospital (Qingdao), Shandong University, Qingdao 266035, China
| | - C J Han
- Department of Otorhinolaryngology Head and Neck Surgery, Qilu Hospital (Qingdao), Shandong University, Qingdao 266035, China
| | - X L Pan
- NHC Key Laboratory of Otorhinolaryngology (Shandong University), Jinan 250102, China Department of Otorhinolaryngology Head and Neck Surgery, Qilu Hospital (Qingdao), Shandong University, Qingdao 266035, China
| | - Y Yuan
- NHC Key Laboratory of Otorhinolaryngology (Shandong University), Jinan 250102, China Department of Otorhinolaryngology Head and Neck Surgery, Qilu Hospital (Qingdao), Shandong University, Qingdao 266035, China
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Campbell J, Feng K, De Young L, Brock G. Intracavernous Injection of Botulinum Toxin may Improve Erectile Function in a Bilateral Cavernous Nerve Injury Animal Model. J Sex Med 2022. [DOI: 10.1016/j.jsxm.2022.01.057] [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: 11/17/2022]
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Wang L, Jin W, Zhang Y, Wang S, Li Q, Qin J, Li Z, Cheng Y, Feng K, Yin S. Stereoelectroencephalography-guided radiofrequency thermocoagulation in drug-resistant focal epilepsy. Ann Transl Med 2022; 10:192. [PMID: 35280357 PMCID: PMC8908190 DOI: 10.21037/atm-21-6851] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Accepted: 02/18/2022] [Indexed: 12/03/2022]
Abstract
Background Stereoelectroencephalography (SEEG) has become a common diagnostic method in epilepsy surgery and is found to be safe for a wide range of clinical applications. SEEG combined with radiofrequency thermocoagulation (RF-TC) not only reveals the seizure onset zone by hypothesis, but also acts as a treatment option without any additional cost to institutions and patients. Thus, we analyzed the treatment of the SEEG-guided RF-TC. Methods This retrospective study analyzed seventeen epileptic patients treated with RF-TC between April 2019 and December 2020. All patients underwent a single round of SEEG-guided RF-TC treatment after more than three habitual seizures were recorded. The demographic characteristics of the patients were retrospectively reviewed. Outcomes were assessed using the Engel classification system. Results All patients underwent SEEG-guided RF-TC without catastrophic functional damage. Follow-up data of all patients were complete. The number of contacts per patients where RF-TC was applied ranged from 9 to 43 (mean: 17.7±10.2). After RF-TC, the types of anti-epileptic drugs used reduced from 2.4±0.7 to 1.6±0.7. With RF-TC alone, four (23.5%) patients achieved Engel Ia, two (11.8%) patients achieved Engel Ib, one patient underwent resection without seizure at the 5-month follow-up, five patients had a relapse after 3–10 months of seizure freedom, and five patients had recurrence after 1 month. After RF-TC, six patients underwent secondary interventions followed by resection. Overall, 12 patients achieved Engel Ia or Ib, three patients achieved Engel IIa or IIb, and two patients achieved Engel IIIa. There were no Engel IV cases. Conclusions SEEG-guided RF-TC performed in our institution was found to be a safe ablation procedure for the treatment of drug-resistant focal epilepsy. All patients experienced a reduction in the frequency of seizures after receiving RF-TC. RF-TC can be used as a palliative treatment option for patients with epilepsy who refuse surgery or cannot undergo resection surgery. Recurrence of focal epilepsy after RF-TC can be treated with resection surgery to achieve the seizure-free status.
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Affiliation(s)
- Le Wang
- Clinical College of Neurology, Neurosurgery and Neurorehabilitation, Tianjin Medical University, Tianjin, China
| | - Weipeng Jin
- Department of Functional Neurosurgery, Huanhu Hospital, Tianjin, China
| | - Yan Zhang
- Clinical College of Neurology, Neurosurgery and Neurorehabilitation, Tianjin Medical University, Tianjin, China
| | - Shimin Wang
- Department of Neurology, Huanhu Hospital, Tianjin, China
| | - Qingyun Li
- Department of Neurology, Huanhu Hospital, Tianjin, China
| | - Jie Qin
- Department of Neurology, Huanhu Hospital, Tianjin, China
| | - Zhitao Li
- Department of Functional Neurosurgery, Huanhu Hospital, Tianjin, China
| | - Yifeng Cheng
- Department of Functional Neurosurgery, Huanhu Hospital, Tianjin, China
| | - Keke Feng
- Department of Functional Neurosurgery, Huanhu Hospital, Tianjin, China
| | - Shaoya Yin
- Department of Functional Neurosurgery, Huanhu Hospital, Tianjin, China
- Functional Neurosurgery Laboratory of Tianjin Neurosurgical Institute, Tianjin, China
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Li XL, Xie JF, Ye XY, Li Y, Li YG, Feng K, Tian SM, Lou JH, Xia CD. [Value of cerebral hypoxic-ischemic injury markers in the early diagnosis of sepsis associated encephalopathy in burn patients with sepsis]. Zhonghua Shao Shang Yu Chuang Mian Xiu Fu Za Zhi 2022; 38:21-28. [PMID: 35152685 DOI: 10.3760/cma.j.cn501120-20211006-00346] [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] [Grants] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To explore the value of cerebral hypoxic-ischemic injury markers in the early diagnosis of sepsis associated encephalopathy (SAE) in burn patients with sepsis. Methods: A retrospective case series study was conducted. From October 2018 to May 2021, 41 burn patients with sepsis who were admitted to Zhengzhou First People's Hospital met the inclusion criteria, including 23 males and 18 females, aged 18-65 (35±3) years. According to whether SAE occurred during hospitalization, the patients were divided into SAE group (21 cases) and non-SAE group (20 cases). The gender, age, deep partial-thickness burn area, full-thickness burn area, and acute physiology and chronic health evaluation Ⅱ (APACHE Ⅱ) scores of patients were compared between the two groups. The serum levels of central nervous system specific protein S100β and neuron specific enolase (NSE) at 12, 24, and 48 h after sepsis diagnosis (hereinafter referred to as after diagnosis), the serum levels of interleukin-6 (IL-6), IL-10, tumor necrosis factor α (TNF-α), Tau protein, adrenocorticotropic hormone (ACTH), and cortisol at 12, 24, 48, 72, 120, and 168 h after diagnosis, and the mean blood flow velocity of middle cerebral artery (VmMCA), pulsatility index, and cerebral blood flow index (CBFi) on 1, 3, and 7 d after diagnosis of patients in the two groups were counted. Data were statistically analyzed with chi-square test, analysis of variance for repeated measurement, independent sample t test, and Bonferroni correction. The independent variables to predict the occurrence of SAE was screened by multi-factor logistic regression analysis. The receiver operating characteristic (ROC) curve was drawn for predicting the occurrence of SAE in burn patients with sepsis, and the area under the curve (AUC), the best threshold, and the sensitivity and specificity under the best threshold were calculated. Results: The gender, age, deep partial-thickness burn area, full-thickness burn area, and APACHE Ⅱ score of patients in the two groups were all similar (χ2=0.02, with t values of 0.71, 1.59, 0.91, and 1.07, respectively, P>0.05). At 12, 24, and 48 h after diagnosis, the serum levels of S100β and NSE of patients in SAE group were all significantly higher than those in non-SAE group (with t values of 37.74, 77.84, 44.16, 22.51, 38.76, and 29.31, respectively, P<0.01). At 12, 24, 48, 72, 120, and 168 h after diagnosis, the serum levels of IL-10, Tau protein, and ACTH of patients in SAE group were all significantly higher than those in non-SAE group (with t values of 10.68, 13.50, 10.59, 8.09, 7.17, 4.71, 5.51, 3.20, 3.61, 3.58, 3.28, 4.21, 5.91, 5.66, 4.98, 4.69, 4.78, and 2.97, respectively, P<0.01). At 12, 24, 48, 72, and 120 h after diagnosis, the serum levels of IL-6 and TNF-α of patients in SAE group were all significantly higher than those in non-SAE group (with t values of 8.56, 7.32, 2.08, 2.53, 3.37, 4.44, 5.36, 5.35, 6.85, and 5.15, respectively, P<0.05 or P<0.01). At 12, 24, and 48 h after diagnosis, the serum level of cortisol of patients in SAE group was significantly higher than that in non-SAE group (with t values of 5.44, 5.46, and 3.55, respectively, P<0.01). On 1 d after diagnosis, the VmMCA and CBFi of patients in SAE group were significantly lower than those in non-SAE group (with t values of 2.94 and 2.67, respectively, P<0.05). On 1, 3, and 7 d after diagnosis, the pulsatile index of patients in SAE group was significantly higher than that in non-SAE group (with t values of 2.56, 3.20, and 3.12, respectively, P<0.05 or P<0.01). Serum IL-6 at 12 h after diagnosis, serum Tau protein at 24 h after diagnosis, serum ACTH at 24 h after diagnosis, and serum cortisol at 24 h after diagnosis were the independent risk factors for SAE complicated in burn patients with sepsis (with odds ratios of 2.42, 1.38, 4.29, and 4.19, 95% confidence interval of 1.76-3.82, 1.06-2.45, 1.37-6.68, and 3.32-8.79, respectively, P<0.01). For 41 burn patients with sepsis, the AUC of ROC of serum IL-6 at 12 h after diagnosis for predicting SAE was 0.92 (95% confidence interval was 0.84-1.00), the best threshold was 157 pg/mL, the sensitivity was 81%, and the specificity was 89%. The AUC of ROC of serum Tau protein at 24 h after diagnosis for predicting SAE was 0.92 (95% confidence interval was 0.82-1.00), the best threshold was 6.4 pg/mL, the sensitivity was 97%, and the specificity was 99%. The AUC of ROC of serum ACTH at 24 h after diagnosis for predicting SAE was 0.96 (95% confidence interval was 0.89-1.00), the best threshold was 14.7 pg/mL, the sensitivity was 90%, and the specificity was 94%. The AUC of ROC of serum cortisol at 24 h after diagnosis for predicting SAE was 0.93 (95% confidence interval was 0.86-1.00), the best threshold was 89 nmol/L, the sensitivity was 94%, and the specificity was 97%. Conclusions: Serum Tau protein, ACTH, and cortisol have high clinical diagnostic value for SAE complicated in burn patients with sepsis.
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Affiliation(s)
- X L Li
- Department of Burns, Zhengzhou First People's Hospital, Zhengzhou 450004, China
| | - J F Xie
- Department of Burns, Zhengzhou First People's Hospital, Zhengzhou 450004, China
| | - X Y Ye
- Department of Burns, Zhengzhou First People's Hospital, Zhengzhou 450004, China
| | - Y Li
- Department of Burns, Zhengzhou First People's Hospital, Zhengzhou 450004, China
| | - Y G Li
- Department of Burns, Zhengzhou First People's Hospital, Zhengzhou 450004, China
| | - K Feng
- Department of Burns, Zhengzhou First People's Hospital, Zhengzhou 450004, China
| | - S M Tian
- Department of Burns, Zhengzhou First People's Hospital, Zhengzhou 450004, China
| | - J H Lou
- Department of Burns, Zhengzhou First People's Hospital, Zhengzhou 450004, China
| | - C D Xia
- Department of Burns, Zhengzhou First People's Hospital, Zhengzhou 450004, China
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Ye XY, Li XL, Li YG, Li YC, Xiao HT, Zhang J, Zhao XK, Xia CD, Tian SM, Feng K. [Clinical effects of medical ozone autologous blood transfusion combined with Xingnaojing in the treatment of septic encephalopathy in burns]. Zhonghua Shao Shang Za Zhi 2021; 37:568-574. [PMID: 34139826 DOI: 10.3760/cma.j.cn501120-20200330-00204] [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
Objective: To investigate the clinical effects of medical ozone autologous blood transfusion combined with Xingnaojing in the treatment of septic encephalopathy in burns. Methods: The retrospective cohort study was conducted. From August 2015 to May 2019, 90 patients with burn septic encephalopathy and conforming to the inclusion criteria were admitted to Zhengzhou First People's Hospital. Forty-six patients (25 males and 21 females, aged (35±4) years ) treated with Xingnaojing were included in Xingnaojing alone group, and forty-four patients (20 males and 24 females, aged (34±5) years) treated with medical ozone autologous blood transfusion combined with Xingnaojing were included in ozone autologous blood transfusion+Xingnaojing group. Heart rate, body temperature, mean arterial pressure, acute physiology and chronic health evaluation Ⅱ(APACHEⅡ) score and Glasgow coma score (GCS) of patients in 2 groups were recorded before treatment and on 7 d after treatment. The blood-brain barrier injury markers including occludin, nitric oxide synthase (NOS), neuron-specific enolase (NSE), central nervous system specific protein S100β, glial fibrillar acidic protein (GFAP), and excitatory amino acid (EAA) in serum of patients in 2 groups were detected before treatment and on 1, 3, and 7 d after treatment. Computer tomography perfusion imaging for brain was performed in patients of 2 groups to calculate the region of interest cerebral blood flow (rCBF), region of interest blood volume (rCBV), and region of interest mean transit time (rMTT) before treatment and on 1, 3, and 7 d after treatment. Data were statistically analyzed with chi-square test, analysis of variance for repeated measurement, independent sample t test, and Bonferroni correction. Results: On 7 d after treatment, heart rate, body temperature, and mean arterial pressure of patients in 2 groups were decreased compared with those before treatment, heart rate of patients in ozone autologous blood transfusion+Xingnaojing group was obviously higher than that in Xingnaojing alone group (t=2.886, P<0.01), body temperature of patients in ozone autologous blood transfusion+Xingnaojing group was obviously lower than that in Xingnaojing alone group (t=5.020, P<0.01), and mean arterial pressure of patients in 2 groups were close (t=0.472, P>0.05). On 7 d after treatment, APACHEⅡ score of patients in ozone autologous blood transfusion+Xingnaojing group was obviously lower than that in Xingnaojing alone group (t=3.797, P<0.01), and GCS of patients in ozone autologous blood transfusion+Xingnaojing group was obviously higher than that in Xingnaojing alone group (t=4.934, P<0.01). On 3 and 7 d after treatment, the levels of occludin, NOS, NSE, S100β, GFAP, and EAA in serum of patients in ozone autologous blood transfusion+Xingnaojing group were significantly lower than those in Xingnaojing alone group (t=2.100, 2.090, 2.691, 2.013, 2.474, 2.635, 2.225, 4.011, 3.150, 2.691, 3.145, 2.781, P<0.05 or P<0.01). On 1, 3, and 7 d after treatment, rCBF and rCBV of patients in ozone autologous blood transfusion+Xingnaojing group were significantly increased compared with those in Xingnaojing alone group (t=3.127, 3.244, 3.883, 7.274, 3.661, 2.777, P<0.01). On 7 d after treatment, rMTT of patients in ozone autologous blood transfusion+Xingnaojing group was (3.02±0.57) s, which was significantly lower than (3.11±1.20) s in Xingnaojing alone group (t=2.409, P<0.05). Conclusions: Transfusion of medical ozone autologous blood combined with Xingnaojing therapy can effectively relieve brain injury and improve cerebral blood perfusion in patients with burn septic encephalopathy, which is with safety and credibility.
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Affiliation(s)
- X Y Ye
- Department of Burns, Zhengzhou First People's Hospital, Zhengzhou 450004, China
| | - X L Li
- Department of Burns, Zhengzhou First People's Hospital, Zhengzhou 450004, China
| | - Y G Li
- Department of Burns, Zhengzhou First People's Hospital, Zhengzhou 450004, China
| | - Y C Li
- Department of Burns, Zhengzhou First People's Hospital, Zhengzhou 450004, China
| | - H T Xiao
- Department of Burns, Zhengzhou First People's Hospital, Zhengzhou 450004, China
| | - J Zhang
- Department of Burns, Zhengzhou First People's Hospital, Zhengzhou 450004, China
| | - X K Zhao
- Department of Burns, Zhengzhou First People's Hospital, Zhengzhou 450004, China
| | - C D Xia
- Department of Burns, Zhengzhou First People's Hospital, Zhengzhou 450004, China
| | - S M Tian
- Department of Burns, Zhengzhou First People's Hospital, Zhengzhou 450004, China
| | - K Feng
- Department of Burns, Zhengzhou First People's Hospital, Zhengzhou 450004, China
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Ke LT, Feng K, Wang WT, Qin ZY, Yu CH, Wu Y, Chen Y, Qi R, Zhang ZJ, Xu Y, Yang XJ, Leng YX, Liu JS, Li RX, Xu ZZ. Near-GeV Electron Beams at a Few Per-Mille Level from a Laser Wakefield Accelerator via Density-Tailored Plasma. Phys Rev Lett 2021; 126:214801. [PMID: 34114880 DOI: 10.1103/physrevlett.126.214801] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/16/2020] [Revised: 03/18/2021] [Accepted: 04/28/2021] [Indexed: 06/12/2023]
Abstract
A simple, efficient scheme was developed to obtain near-gigaelectronvolt electron beams with energy spreads of few per-mille level in a single-stage laser wakefield accelerator. Longitudinal plasma density was tailored to control relativistic laser-beam evolution, resulting in injection, dechirping, and a quasi-phase-stable acceleration. With this scheme, electron beams with peak energies of 780-840 MeV, rms energy spreads of 2.4‰-4.1‰, charges of 8.5-23.6 pC, and rms divergences of 0.1-0.4 mrad were experimentally obtained. Quasi-three-dimensional particle-in-cell simulations agreed well with the experimental results. The dechirping strength was estimated to reach up to 11 TeV/mm/m, which is higher than previously obtained results. Such high-quality electron beams will boost the development of compact intense coherent radiation sources and x-ray free-electron lasers.
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Affiliation(s)
- L T Ke
- State Key Laboratory of High Field Laser Physics and CAS Center for Excellence in Ultra-intense Laser Science, Shanghai Institute of Optics and Fine Mechanics (SIOM), Chinese Academy of Sciences (CAS), Shanghai 201800, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
| | - K Feng
- State Key Laboratory of High Field Laser Physics and CAS Center for Excellence in Ultra-intense Laser Science, Shanghai Institute of Optics and Fine Mechanics (SIOM), Chinese Academy of Sciences (CAS), Shanghai 201800, China
| | - W T Wang
- State Key Laboratory of High Field Laser Physics and CAS Center for Excellence in Ultra-intense Laser Science, Shanghai Institute of Optics and Fine Mechanics (SIOM), Chinese Academy of Sciences (CAS), Shanghai 201800, China
| | - Z Y Qin
- Department of Physics, Shanghai Normal University, Shanghai 200234, People's Republic of China
| | - C H Yu
- Department of Physics, Shanghai Normal University, Shanghai 200234, People's Republic of China
| | - Y Wu
- State Key Laboratory of High Field Laser Physics and CAS Center for Excellence in Ultra-intense Laser Science, Shanghai Institute of Optics and Fine Mechanics (SIOM), Chinese Academy of Sciences (CAS), Shanghai 201800, China
| | - Y Chen
- State Key Laboratory of High Field Laser Physics and CAS Center for Excellence in Ultra-intense Laser Science, Shanghai Institute of Optics and Fine Mechanics (SIOM), Chinese Academy of Sciences (CAS), Shanghai 201800, China
| | - R Qi
- State Key Laboratory of High Field Laser Physics and CAS Center for Excellence in Ultra-intense Laser Science, Shanghai Institute of Optics and Fine Mechanics (SIOM), Chinese Academy of Sciences (CAS), Shanghai 201800, China
| | - Z J Zhang
- Department of Physics, Shanghai Normal University, Shanghai 200234, People's Republic of China
| | - Y Xu
- State Key Laboratory of High Field Laser Physics and CAS Center for Excellence in Ultra-intense Laser Science, Shanghai Institute of Optics and Fine Mechanics (SIOM), Chinese Academy of Sciences (CAS), Shanghai 201800, China
| | - X J Yang
- State Key Laboratory of High Field Laser Physics and CAS Center for Excellence in Ultra-intense Laser Science, Shanghai Institute of Optics and Fine Mechanics (SIOM), Chinese Academy of Sciences (CAS), Shanghai 201800, China
| | - Y X Leng
- State Key Laboratory of High Field Laser Physics and CAS Center for Excellence in Ultra-intense Laser Science, Shanghai Institute of Optics and Fine Mechanics (SIOM), Chinese Academy of Sciences (CAS), Shanghai 201800, China
- School of Physical Science and Technology, Shanghai Tech University, Shanghai 200031, People's Republic of China
| | - J S Liu
- State Key Laboratory of High Field Laser Physics and CAS Center for Excellence in Ultra-intense Laser Science, Shanghai Institute of Optics and Fine Mechanics (SIOM), Chinese Academy of Sciences (CAS), Shanghai 201800, China
- Department of Physics, Shanghai Normal University, Shanghai 200234, People's Republic of China
| | - R X Li
- State Key Laboratory of High Field Laser Physics and CAS Center for Excellence in Ultra-intense Laser Science, Shanghai Institute of Optics and Fine Mechanics (SIOM), Chinese Academy of Sciences (CAS), Shanghai 201800, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
- School of Physical Science and Technology, Shanghai Tech University, Shanghai 200031, People's Republic of China
| | - Z Z Xu
- State Key Laboratory of High Field Laser Physics and CAS Center for Excellence in Ultra-intense Laser Science, Shanghai Institute of Optics and Fine Mechanics (SIOM), Chinese Academy of Sciences (CAS), Shanghai 201800, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
- School of Physical Science and Technology, Shanghai Tech University, Shanghai 200031, People's Republic of China
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Li XL, Ye XY, Li YG, Xiao HT, Zhao XK, Zhang J, Feng K, Tian SM, Lou JH, Xia CD. [Value of renal injury marker protein in early diagnosis of acute kidney injury in burn patients with delayed resuscitation]. Zhonghua Shao Shang Za Zhi 2021; 37:143-149. [PMID: 33550768 DOI: 10.3760/cma.j.cn501120-20200915-00411] [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] [Indexed: 11/05/2022]
Abstract
Objective: To explore the value of renal injury marker protein in early diagnosis of acute kidney injury (AKI) in burn patients with delayed resuscitation. Methods: The retrospective case-control research was conducted. Forty-three burn patients with delayed resuscitation (27 males and 16 females, with age of 18-75 (35±3) years)who were admitted to Zhengzhou First People's Hospital from May 2018 to May 2020 met the inclusion criteria. The patients were divided into AKI group with 23 patients and non-AKI group with 20 patients according to whether AKI occurred within 7 days after burns. The gender, age, deep partial-thickness burn area, full-thickness burn area, and acute physiology and chronic health evaluation Ⅱ of patients were compared between the two groups.The fluid supplement volume and serum creatinine at 12, 24, and 48 h after burn, serum albumin/fibrinogen ratio (AFR), urinary heat shock protein 70 (HSP70), tissue inhibitor of metalloproteinase-2 (TIMP-2)×insulin-like growth factor binding protein 7 (IGFBP-7), and neutrophil gelatinase associated lipocalin (NGAL)at 12, 24, 48, 72, 120, and 168 h after burn were detected.Data were statistically analyzed with Mann-Whitney U test, analysis of variance for repeated measurement, independent-samples t test, chi-square test and Bonferroni correction. The independent variable to predict the occurrence of AKI was screened by multi-factor logistic regression analysis. The receiver's operating characteristic curve was drawn for predicting the occurrence of AKI in burn delayed resuscitation patients, and the area under the curve (AUC), the best threshold, and the sensitivity and specificity under the best threshold were calculated. Results: The gender, age, deep partial-thickness burn area, full-thickness burn area, acute physiology and chronic health evaluation Ⅱ of patients in two groups were similar (χ(2)=1.98, t=1.98, 1.99, 1.99, 1.99, P>0.05). The fluid supplement volume of patients in AKI group at 24 and 48 h after burn was significantly less than that in non-AKI group (t=15.37, 6.51, P<0.01). The serum creatinine of patients in AKI group at 12, 24, and 48 h after burn was significantly higher than that in non-AKI group (Z=2.16, 5.62, 6.72, P<0.01). The serum AFR of patients in AKI group at 12, 24, 48, 72, 120, and 168 h after burn was significantly lower than that in non-AKI group (t=16.14, 35.35, 19.60, 20.47, 30.20, 20.17, P<0.01). The levels of urinary HSP70 of patients in AKI group at 12, 24, 48, 72, 120, and 168 h after burn were (6.89±0.87), (6.42±0.73), (5.81±0.72), (5.17±0.56), (4.63±0.51), (3.89±0.51) μg/L, which were significantly higher than (3.89±0.75), (3.57±0.63), (2.66±0.41), (1.83±0.35), (1.48±0.19), (1.28±0.19) μg/L in non-AKI group (t=12.00, 13.61, 17.39, 22.98, 26.34, 21.59, P<0.01). Urinary TIMP-2×IGFBP-7 and NGAL of patients in AKI group at 12, 24, 48, 72, 120, 168 h after burn were significantly higher than those in non-AKI group (t=26.94, 101.11, 35.50, 66.89, 17.34, 14.30, 14.00, 13.78, 12.32, 14.80, 21.36, 22.62, P<0.01). Urinary HSP70 and serum AFR at 12 h after burn, urinary TIMP-2×IGFBP-7 and NGAL at 24 h after burn were included into multi-factor logistic regression analysis (odds ratio=2.42, 3.47, 7.52, 5.61, 95% confidence interval=1.99-2.95, 1.86-3.92, 2.87-9.68, 2.14-14.69, P<0.01). For 43 patients with burn delayed resuscitation, the AUC of receiver's operating characteristic curve of serum AFR at 12 h after burn for predicting AKI was 0.739 (95% confidence interval=0.576-0.903), the optimal threshold was 9.90, the sensitivity was 82%, and the specificity was 90%. The AUC of urinary HSP70 at 12 h after burn was 0.990 (95% confidence interval=0.920-1.000), the optimal threshold was 1.40 μg/L, the sensitivity was 98%, and the specificity was 96%. The AUC of urinary TIMP-2×IGFBP-7 at 24 h after burn was 0.715 (95% confidence interval=0.512-0.890), the optimal threshold was 114.20 μg(2)/L(2), the sensitivity was 91%, and the specificity was 95%. The AUC of urinary NGAL at 24 h after burn was 0.972 (95% confidence interval=0.860-1.000), the optimal threshold was 78 μg/L, the sensitivity was 95%, and the specificity was 96%. Conclusions: Urinary HSP70 and NGAL have higher value in early diagnosis of AKI in burn patients with delayed resuscitation.
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Affiliation(s)
- X L Li
- Department of Burns, Zhengzhou First People's Hospital, Zhengzhou 450004, China
| | - X Y Ye
- Department of Burns, Zhengzhou First People's Hospital, Zhengzhou 450004, China
| | - Y G Li
- Department of Burns, Zhengzhou First People's Hospital, Zhengzhou 450004, China
| | - H T Xiao
- Department of Burns, Zhengzhou First People's Hospital, Zhengzhou 450004, China
| | - X K Zhao
- Department of Burns, Zhengzhou First People's Hospital, Zhengzhou 450004, China
| | - J Zhang
- Department of Burns, Zhengzhou First People's Hospital, Zhengzhou 450004, China
| | - K Feng
- Department of Burns, Zhengzhou First People's Hospital, Zhengzhou 450004, China
| | - S M Tian
- Department of Burns, Zhengzhou First People's Hospital, Zhengzhou 450004, China
| | - J H Lou
- Department of Burns, Zhengzhou First People's Hospital, Zhengzhou 450004, China
| | - C D Xia
- Department of Burns, Zhengzhou First People's Hospital, Zhengzhou 450004, China
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Fang Z, Gu Z, Zhang T, Lei J, Lin L, Yan Z, Feng K, Xie M, Guo S, Liu Z, Hong Z, Li X. The impact of new modes of electronic communication in the treatment of severe acute respiratory syndrome coronavirus 2 infection. Ann Transl Med 2020; 8:1239. [PMID: 33178771 PMCID: PMC7607116 DOI: 10.21037/atm-20-6413] [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] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Background More than 26,760,000 cases of SARS-CoV-2 infection have been reported globally to date. This study aimed to analyze the impact of new electronic communication tools in the diagnosis and treatment of patients with SARS-CoV-2 infection. Methods From January 20 to February 26, 2020, adult patients with laboratory-confirmed severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection who were treated in The Fifth Affiliated Hospital, Sun Yat-sen University, in Zhuhai, China, were recruited. Forty-seven eligible patients were enrolled and randomly classified into either the test group or the control group. All of the patients received the standard therapeutic regimen and routine ward rounds. The test group was subdivided into three subgroups: the first subgroup (5-minute group) was given an extra 5-minute ward round by WeChat voice call once daily for basic disease communication; the second subgroup (10-minute group) received an extra 10-minute ward round by WeChat voice call once daily for further detail; and the third subgroup (20-minute group) was given an extra 10-minute ward round via WeChat voice call once daily, as well as an extra 10 minutes every 3 days. The primary outcome was the duration of positive-to-negative conversion of SARS-CoV-2 nucleic acid diagnosed by the NAT (nucleic acid testing). Results In the test groups, the median time from diagnosis to the endpoint was 7.0 days [interquartile range (IQR), 3.8–10.8], compared with 10.0 days (IQR, 6.5–14.5) in the control group. It showed significant reduced the duration time of virus from positive to negative by the NAT (nucleic acid testing), (P=0.032) especially between the 10-minute subgroup (3.0 days; IQR, 3.0–7.5) and the control group (P=0.0065). Conclusions The use of new modes of electronic communication can benefit patients during the COVID-19 pandemic and could be extremely valuable in addressing the shortage of medical protective equipment and reducing occupational risk of exposure to infection.
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Affiliation(s)
- Zhaoxiong Fang
- Department of Gastroenterology, the Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, China
| | - Zhiqiang Gu
- Department of Gastroenterology, the Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, China
| | - Tian Zhang
- Department of Oncology, the Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, China
| | - Junjie Lei
- Department of Neurology, the Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, China
| | - Lu Lin
- Department of Gastroenterology, the Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, China
| | - Zhixiang Yan
- Guangdong Provincial Key Laboratory of Biomedical Imaging and Guangdong Provincial Engineering Research Center of Molecular Imaging, the Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, China
| | - Keke Feng
- Department of Rehabilitation Medicine, the Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, China
| | - Mengsha Xie
- Department of Gerontology, the Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, China
| | - Shuanshuan Guo
- Department of Oncology, the Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, China
| | - Zhigang Liu
- Department of Oncology, the Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, China
| | - Zhongsi Hong
- Department of Infectious Disease, the Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, China
| | - Xiaofeng Li
- Department of Gastroenterology, the Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, China
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Bell T, Feng K, Calvin G, Van Winkle DH, Lenhert S. Organic Composomes as Supramolecular Aptamers. ACS Omega 2020; 5:27393-27400. [PMID: 33134702 PMCID: PMC7594120 DOI: 10.1021/acsomega.0c03799] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/07/2020] [Accepted: 09/29/2020] [Indexed: 06/11/2023]
Abstract
Information contained in the sequences of biological polymers such as DNA and protein is crucial to determining their function. Lipids are not generally thought of as information-containing molecules. However, from a supramolecular perspective, the number of possible combinations of lipids in a mixture is comparable to the complexity of DNA or proteins. Here, we test the idea that an organic composome can exhibit molecular recognition. We use water/octanol as a model two-phase system and investigate the effect of organic solutes in different combinations in the organic phase on selective partitioning of two water-soluble dyes (Brilliant Blue FCF and Allura Red AC) from the aqueous phase into the organic phase. We found that variation in the concentration of the surfactant cetyltrimethylamonium bromide (CTAB) in the octanol phase alone was sufficient to cause a switch in selectivity, with low CTAB concentrations being selective for the red dye and high CTAB concentrations being selective for the blue dye. Other organic components were added to the organic phase to introduce molecular diversity into the composome and directed evolution was used to optimize the relative concentrations of the solutes. An improvement of selective partitioning in the heterogeneous system over the pure CTAB solution was observed. The results indicate that supramolecular composomes are sufficient for molecular recognition processes in a way analogous to nucleic acid aptamers.
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Affiliation(s)
- Tracey
N. Bell
- Department
of Biological Science and Integrative NanoScience Institute, Florida State University, Biology Unit 1, 89 Chieftan Way, Tallahassee, Florida 32306, United States
| | - Keke Feng
- Department
of Physics, Florida State University, 77 Chieftan Way, Tallahassee, Florida 32306, United States
| | - Gabriel Calvin
- Department
of Biological Science and Integrative NanoScience Institute, Florida State University, Biology Unit 1, 89 Chieftan Way, Tallahassee, Florida 32306, United States
| | - David H. Van Winkle
- Department
of Physics, Florida State University, 77 Chieftan Way, Tallahassee, Florida 32306, United States
| | - Steven Lenhert
- Department
of Biological Science and Integrative NanoScience Institute, Florida State University, Biology Unit 1, 89 Chieftan Way, Tallahassee, Florida 32306, United States
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Lv ZC, Cao XY, Guo YX, Zhang XD, Ding J, Geng J, Feng K, Niu H. MiR-137-5p alleviates inflammation by upregulating IL-10R1 expression in rats with spinal cord injury. Eur Rev Med Pharmacol Sci 2020; 23:4551-4557. [PMID: 31210303 DOI: 10.26355/eurrev_201906_18030] [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] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE This study aims to explore the potential functions of miR-137-5p and interleukin-10R1 (IL-10R1) in mediating the immune inflammation after spinal cord injury (SCI). MATERIALS AND METHODS Firstly, primary microglia were isolated from the spinal cord of newborn rats. Expression levels of miR-137-5p and IL-10R1 in LPS-induced microglia were determined by quantitative Real-time polymerase chain reaction (qRT-PCR). In addition, mRNA expressions of Janus kinase (Jak1) and signal transducer and activator of transcription 3 (STAT3) were also examined by qRT-PCR. SCI model in rats was established and randomly assigned to three different groups: Sham group, SCI group and miR-137-5p mimic group. Within one week of spinal injury, relative levels of miR-137-5p and IL-10R1 in rats of different groups were detected by qRT-PCR. The mRNA levels of JAK1, tyrosine kinase (Tyk2) and STAT3 in rats were also measured. Moreover, protein expression of IL-1β, TNF-α and IL-6 in rats was measured by Western blotting. Finally, the improvement of locomotor function in three groups of rats within 4 weeks via BBB rating scale. RESULTS Transfection of miR-137-5p mimics upregulated relative levels of IL-10R1, JAK1 and STAT3 in in vitro cultured microglia. Similarly, IL-10R1/JAK1/STAT3 pathway was activated in rats administrated with miR-137-5p mimics. Nevertheless, relative levels of classical inflammatory stimulators IL-1β, TNF-α and IL-6 were downregulated accordingly by miR-137-5p overexpression. Moreover, miR-137-5p effectively improved the locomotor function of rats after SCI. CONCLUSIONS MiR-137-5p exerts an anti-inflammatory response by upregulating IL-10R1, thus improving locomotor function and alleviating spinal cord injury.
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Affiliation(s)
- Z-C Lv
- Department of Spine Surgery, Luoyang Orthopedic Hospital of Henan Province, Zhengzhou, China.
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Lv ZC, Cao XY, Guo YX, Zhang XD, Ding J, Geng J, Feng K, Niu H. Effects of MiR-146a on repair and inflammation in rats with spinal cord injury through the TLR/NF-κB signaling pathway. Eur Rev Med Pharmacol Sci 2020; 23:4558-4563. [PMID: 31210336 DOI: 10.26355/eurrev_201906_18031] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE This study aims to investigate the effects of micro ribonucleic acid-34a (miR-34a) on repair and inflammation of rats with spinal cord injury (SCI) through the toll-like receptor (TLR)/nuclear factor kappa-light-chain-enhancer of activated B cells (NF-κB) signaling pathway. MATERIALS AND METHODS In this study, 12 healthy rats (control group (CG)) and 24 SCI rats (experimental group (EG-1)) were selected as subjects. A total of 12 experimental rats randomly selected from EG-1 were injected with 5 µL agomiR-146 as EG-2 group. Serum levels of miR-146a, TLR, NF-κB, interleukin-8 (IL-8) and IL-6 of rats in CG and EG-1 were detected by quantitative reverse transcription-polymerase chain reaction (qRT-PCR). Furthermore, the protein levels of miR-146a, TLR, NF-κB, IL-8 and IL-6 in rats of CG and EG were detected via Western blotting. Spinal cord tissue sections of SCI rats after treatment with agomiR-146 were observed by hematoxylin and eosin staining (H&E) staining. RESULTS The mRNA level of miR-146a in SCI rats was significantly lower than that in healthy rats, and the difference was statistically significant (p < 0.05). The mRNA levels of TLR, NF-κB, IL-8 and IL-6 in SCI rats were markedly higher than those in healthy rats, showing significant differences (p < 0.05). However, the relative mRNA level of miR-146a in EG-2 group was significantly higher than that in EG-1 group, with a significant difference (p < 0.05). Relative level of miR-146a was not significantly different between EG-2 group and CG group (p > 0.05). Meanwhile, the mRNA levels of TLR, NF-κB, IL-8 and IL-6 in EG-2 group were evidently lower than those in EG-1 group, displaying significant differences (p < 0.05). CONCLUSIONS MiR-146a can promote the repair of SCI and reduce inflammatory responses in rats through the TLR/NF-κB signaling pathway.
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Affiliation(s)
- Z-C Lv
- Department of Spine Surgery, Luoyang Orthopedic Hospital of Henan Province, Zhengzhou, China.
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Li XL, Xiao HT, Zhang J, Li YG, Ye XY, Zhao XK, Wang L, Feng K, Tian SM, Lou JH, Xia CD, Li YC. [Successful rescue of one severe burn patient accompanied by asphyxia, sudden cardiac arrest, and acute respiratory distress syndrome]. Zhonghua Shao Shang Za Zhi 2020; 36:743-745. [PMID: 32829617 DOI: 10.3760/cma.j.cn501120-20190811-00344] [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] [Indexed: 11/05/2022]
Abstract
On March 14, 2017, a thirty years old male severe burn patient accompanied by asphyxia, sudden cardiac arrest, and acute respiratory distress syndrome was admitted to Zhengzhou First People's Hospital. During the shock stage, the pulse contour cardiac output was monitored for the restrictive rehydration, tracheotomy was performed, and fibrobronchoscope lavage was performed for the treatment of inhalation injury and pulmonary infection. An alternate application of suspended bed and turning bed was conducted to balance the treatment of cerebral edema and pulmonary infection; targeted antibiotics were used for anti-infective treatment; multiple operations were performed for eschar excision and skin grafting. At last, the wounds were all healed, the lung infection was cured, and the patient was discharged with severe disturbance of consciousness. Asphyxia and acute respiratory distress syndrome post-cardiopulmonary resuscitation are serious complications in severe burn patients. The clinical treatment of such patients is very difficult and should be highly alerted.
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Affiliation(s)
- X L Li
- Department of Burns, Zhengzhou First People's Hospital, Zhengzhou 450004, China
| | - H T Xiao
- Department of Burns, Zhengzhou First People's Hospital, Zhengzhou 450004, China
| | - J Zhang
- Department of Burns, Zhengzhou First People's Hospital, Zhengzhou 450004, China
| | - Y G Li
- Department of Burns, Zhengzhou First People's Hospital, Zhengzhou 450004, China
| | - X Y Ye
- Department of Burns, Zhengzhou First People's Hospital, Zhengzhou 450004, China
| | - X K Zhao
- Department of Burns, Zhengzhou First People's Hospital, Zhengzhou 450004, China
| | - L Wang
- Department of Burns, Zhengzhou First People's Hospital, Zhengzhou 450004, China
| | - K Feng
- Department of Burns, Zhengzhou First People's Hospital, Zhengzhou 450004, China
| | - S M Tian
- Department of Burns, Zhengzhou First People's Hospital, Zhengzhou 450004, China
| | - J H Lou
- Department of Burns, Zhengzhou First People's Hospital, Zhengzhou 450004, China
| | - C D Xia
- Department of Burns, Zhengzhou First People's Hospital, Zhengzhou 450004, China
| | - Y C Li
- Department of Burns, Zhengzhou First People's Hospital, Zhengzhou 450004, China
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Yang X, Hu W, Xiu Z, Jiang A, Yang X, Saren G, Ji Y, Guan Y, Feng K. Effect of salt concentration on microbial communities, physicochemical properties and metabolite profile during spontaneous fermentation of Chinese northeast sauerkraut. J Appl Microbiol 2020; 129:1458-1471. [PMID: 32677269 DOI: 10.1111/jam.14786] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2020] [Revised: 06/29/2020] [Accepted: 07/12/2020] [Indexed: 11/30/2022]
Abstract
AIM The aim of this study was to study the effects of salt concentrations on the microbial communities, physicochemical properties, metabolome profiles and sensory characteristics during the fermentation of traditional northeast sauerkraut. METHODS AND RESULTS Northeast sauerkraut was spontaneously fermented under four salt concentrations (0·5, 1·5, 2·5 and 3·5%, w/w). The result of microbiological analysis showed that the population of lactic acid bacteria in 2·5%-salted sauerkraut was significantly higher than that in the other samples. Correspondingly, the speed of decrease in pH and accumulation of acids were the highest in 2·5%-salted sauerkraut. The glucose (analysed by HPLC) in 2·5%-salted sauerkraut was consumed more completely to produce higher levels of organic acids compared to those in the other samples. Principle component analysis showed clear differences in the metabolites of sauerkraut according to different salt concentrations. A higher level of volatiles (detected by HS-SPME/GC-MS) was identified in 2·5%-salted sauerkraut, and sensory evaluation demonstrated that 2·5%-salted sauerkraut had the best sensory characteristics. CONCLUSION The best quality of sauerkraut was obtained from fermented under 2·5% salt concentration. SIGNIFICANCE AND IMPACT OF THE STUDY This study facilitated the understanding of the effects of salt on the sauerkraut fermentation and may be useful for developing the quality of sauerkraut.
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Affiliation(s)
- X Yang
- School of Bioengineering, Dalian University of Technology, Dalian, Liaoning, PR China.,College of Life Science, Dalian Minzu University, Dalian, Liaoning, PR China.,Key Laboratory of Biotechnology and Bioresources Utilization, Ministry of Education, Dalian, Liaoning, PR China
| | - W Hu
- College of Life Science, Dalian Minzu University, Dalian, Liaoning, PR China.,Key Laboratory of Biotechnology and Bioresources Utilization, Ministry of Education, Dalian, Liaoning, PR China
| | - Z Xiu
- School of Bioengineering, Dalian University of Technology, Dalian, Liaoning, PR China
| | - A Jiang
- College of Life Science, Dalian Minzu University, Dalian, Liaoning, PR China.,Key Laboratory of Biotechnology and Bioresources Utilization, Ministry of Education, Dalian, Liaoning, PR China
| | - X Yang
- College of Life Science, Dalian Minzu University, Dalian, Liaoning, PR China.,Key Laboratory of Biotechnology and Bioresources Utilization, Ministry of Education, Dalian, Liaoning, PR China
| | - G Saren
- School of Bioengineering, Dalian University of Technology, Dalian, Liaoning, PR China.,College of Life Science, Dalian Minzu University, Dalian, Liaoning, PR China.,Key Laboratory of Biotechnology and Bioresources Utilization, Ministry of Education, Dalian, Liaoning, PR China
| | - Y Ji
- School of Bioengineering, Dalian University of Technology, Dalian, Liaoning, PR China.,College of Life Science, Dalian Minzu University, Dalian, Liaoning, PR China.,Key Laboratory of Biotechnology and Bioresources Utilization, Ministry of Education, Dalian, Liaoning, PR China
| | - Y Guan
- School of Bioengineering, Dalian University of Technology, Dalian, Liaoning, PR China.,College of Life Science, Dalian Minzu University, Dalian, Liaoning, PR China.,Key Laboratory of Biotechnology and Bioresources Utilization, Ministry of Education, Dalian, Liaoning, PR China
| | - K Feng
- College of Life Science, Dalian Minzu University, Dalian, Liaoning, PR China.,Key Laboratory of Biotechnology and Bioresources Utilization, Ministry of Education, Dalian, Liaoning, PR China
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28
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Feng K, Lin Y, Guo J, Ye Z, Zhang Y, Ma Q, Shao Y, Chen K, Zhuang J, Lin D, Lin T. Study on the enhanced electron-hole separation capability of Ir xZn 1-xO/Ti electrodes with high photoelectrocatalysis efficiency. J Hazard Mater 2020; 393:122488. [PMID: 32193133 DOI: 10.1016/j.jhazmat.2020.122488] [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] [Subscribe] [Scholar Register] [Received: 01/02/2020] [Revised: 03/03/2020] [Accepted: 03/05/2020] [Indexed: 06/10/2023]
Abstract
Making full use of low-energy photons and reducing photogenerated carriers' recombination rate have been considered important ways to raise photoelectrocatalysis (PEC) efficiency. In this study, Ir-doped ZnO PEC electrodes were prepared by thermal decomposition method, first principles calculations were used to study the effects of Ir content on the electronic structure and optical properties of IrxZn1-xO coatings, the PEC degradation mechanism of the IrxZn1-xO/Ti electrodes was also tentatively presented. The results indicated that with numbers of Zn atoms replaced by Ir atoms, impurity energy level appeared in ZnO band gap, which reduced the electron transition barriers and increased the number of photogenerated carriers. Besides, IrO2 nanoparticles covered on ZnO nanorods surface, acting as highly efficient electron transfer channels and electrocatalytic active sites, could separate photogenerated electron-hole pairs and enhance PEC performance effectively. PEC performance of IrxZn1-xO/Ti electrodes with different Ir contents under UV irradiation was evaluated by rhodamine B (RhB) removal rate. Compared with pure ZnO electrodes, IrxZn1-xO/Ti ones exhibited much stronger degradation capacity. Specifically, Ir0.09375Zn0.90625O/Ti electrodes showed the highest degradation rate of 99.4 %, and a relatively high rate of 95.2 % after working 100 h continuously, indicating its excellent long-term stability.
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Affiliation(s)
- Keke Feng
- College of Materials Science and Engineering, Fuzhou University, Fuzhou, Fujian 350108, China.
| | - Yuting Lin
- College of Materials Science and Engineering, Fuzhou University, Fuzhou, Fujian 350108, China.
| | - Jie Guo
- College of Materials Science and Engineering, Fuzhou University, Fuzhou, Fujian 350108, China.
| | - Zhanghao Ye
- College of Materials Science and Engineering, Fuzhou University, Fuzhou, Fujian 350108, China.
| | - Yanbin Zhang
- College of Materials Science and Engineering, Fuzhou University, Fuzhou, Fujian 350108, China.
| | - Qiongqiong Ma
- College of Materials Science and Engineering, Fuzhou University, Fuzhou, Fujian 350108, China.
| | - Yanqun Shao
- College of Materials Science and Engineering, Fuzhou University, Fuzhou, Fujian 350108, China.
| | - Kongfa Chen
- College of Materials Science and Engineering, Fuzhou University, Fuzhou, Fujian 350108, China.
| | - Jianhuang Zhuang
- Putian Power Supply Company of State Grid Fujian Electric Power Co. Ltd., Putian, Fujian 351100, China.
| | - Deyuan Lin
- Electric Power Research Institute of State Grid Fujian Electric Power Co. Ltd., Fuzhou, Fujian 350007, China.
| | - Tianshun Lin
- Putian Power Supply Company of State Grid Fujian Electric Power Co. Ltd., Putian, Fujian 351100, China.
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29
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Feng K, Yun YX, Wang XF, Yang GD, Zheng YJ, Lin CM, Wang LF. [Analysis of CT features of 15 children with 2019 novel coronavirus infection]. Zhonghua Er Ke Za Zhi 2020; 58:275-278. [PMID: 32234131 DOI: 10.3760/cma.j.cn112140-20200210-00071] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To explore imaging characteristics of children with 2019 novel coronavirus (2019-nCoV) infection. Methods: A retrospective analysis was performed on clinical data and chest CT images of 15 children diagnosed with 2019-nCoV infection. They were admitted to the Third People's Hospital of Shenzhen from January 16 to February 6, 2020. The distribution and morphology of pulmonary lesions on chest CT images were analyzed. Results: Among the 15 children, 5 were males and 10 females, aged from 4 to 14 years. Five of the 15 children were febrile and 10 were asymptomatic on the first visit. The first nasal or pharyngeal swab samples in all the 15 cases were positive for 2019-nCoV nucleic acid. For their first chest CT images, 6 patients had no lesions, while 9 patients had pulmonary inflammatory lesions. Seven cases had small nodular ground glass opacities and 2 cases had speckled ground glass opacities. After 3 to 5 days of treatment, 2019-nCoV nucleic acid in a second respiratory sample turned negative in 6 cases. Among them, chest CT images showed less lesions in 2 cases, no lesion in 3 cases, and no improvement in 1 case. The remaining 9 cases were still positive in a second nucleic acid test. Six patients showed similar chest CT inflammation, while 3 patients had new lesions, which were all small nodular ground glass opacities. Conclusions: The early chest CT images of children with 2019-nCoV infection are mostly small nodular ground glass opacities. The clinical symptoms of children with 2019-nCoV infection are nonspecific. Dynamic reexamination of chest CT and nucleic acid are important.
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Affiliation(s)
- K Feng
- Department of Radiology, the Third People's Hospital of Shenzhen, Shenzhen 518100, China
| | - Y X Yun
- Department of Radiology, the Third People's Hospital of Shenzhen, Shenzhen 518100, China
| | - X F Wang
- Department of Pediatrics, the Third People's Hospital of Shenzhen, Shenzhen 518100, China
| | - G D Yang
- Department of Radiology, the Third People's Hospital of Shenzhen, Shenzhen 518100, China
| | - Y J Zheng
- Department of Respiratory Medicine, Shenzhen Children's Hospital, Shenzhen 518038, China
| | - C M Lin
- Department of Radiology, the Third People's Hospital of Shenzhen, Shenzhen 518100, China
| | - L F Wang
- Department of Radiology, the Third People's Hospital of Shenzhen, Shenzhen 518100, China
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30
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Chang E, Moayedi Y, Hoppenfeld M, Lafreniere-Roula M, Fan S, Henricksen E, Feng K, Morales D, Purewal S, Duclos S, Lee R, Lyapin A, Currie M, Ross H, Teuteberg J, Khush K. Malignancy Following Heart Transplant: Few and Far Between. J Heart Lung Transplant 2020. [DOI: 10.1016/j.healun.2020.01.623] [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: 11/26/2022] Open
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31
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Feng K, Yun YX, Wang XF, Yang GD, Zheng YJ, Lin CM, Wang LF. [Analysis of CT features of 15 Children with 2019 novel coronavirus infection]. Zhonghua Er Ke Za Zhi 2020; 58:E007. [PMID: 32061200 DOI: 10.3760/cma.j.issn.0578-1310.2020.0007] [Citation(s) in RCA: 60] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To explore imaging characteristics of children with 2019 novel coronavirus (2019-nCoV) infection. Methods: A retrospective analysis was performed on clinical data and chest CT images of 15 children diagnosed with 2019-nCoV. They were admitted to the third people's Hospital of Shenzhen from January 16 to February 6, 2020. The distribution and morphology of pulmonary lesions on chest CT images were analyzed. Results: Among the 15 children, there were 5 males and 10 females, aged from 4 to 14 years old. Five of the 15 children were febrile and 10 were asymptomatic on first visit. The first nasal or pharyngeal swab samples in all the 15 cases were positive for 2019-nCoV nucleic acid. For their first chest CT images, 6 patients had no lesions, while 9 patients had pulmonary inflammation lesions. Seven cases of small nodular ground glass opacities and 2 cases of speckled ground glass opacities were found. After 3 to 5 days of treatment, 2019-nCoV nucleic acid in a second respiratory sample turned negative in 6 cases. Among them, chest CT images showed less lesions in 2 cases, no lesion in 3 cases, and no improvement in 1 case. Other 9 cases were still positive in a second nucleic acid test. Six patients showed similar chest CT inflammation, while 3 patients had new lesions, which were all small nodular ground glass opacities. Conclusions: The early chest CT images of children with 2019-nCoV infection are mostly small nodular ground glass opacities. The clinical symptoms of children with 2019-nCoV infection are nonspecific. Dynamic reexamination of chest CT and nucleic acid are important.
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Affiliation(s)
- K Feng
- Department of Radiology, the third people's Hospital of Shenzhen, Shenzhen 518100, China
| | - Y X Yun
- Department of Radiology, the third people's Hospital of Shenzhen, Shenzhen 518100, China
| | - X F Wang
- Department of Pediatrics, the third people's Hospital of Shenzhen, Shenzhen 518100, China
| | - G D Yang
- Department of Radiology, the third people's Hospital of Shenzhen, Shenzhen 518100, China
| | - Y J Zheng
- Department of Respiratory Medicine, Shenzhen Children's Hospital, Shenzhen 518038, China
| | - C M Lin
- Department of Radiology, the third people's Hospital of Shenzhen, Shenzhen 518100, China
| | - L F Wang
- Department of Radiology, the third people's Hospital of Shenzhen, Shenzhen 518100, China
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32
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Yin DG, Yan B, Feng K. Exploration of the relationship between DNA methyltransferase 1 and lung cancer screening. J BIOL REG HOMEOS AG 2020; 33:1789-1795. [PMID: 31989805 DOI: 10.23812/19-208-l] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- D G Yin
- Department of Thoracic Surgery, Xixi Hospital, Hangzhou, China
| | - B Yan
- Department of Thoracic Surgery, Xixi Hospital, Hangzhou, China
| | - K Feng
- Department of Thoracic Surgery, First Hospital, Fuyang District, Hangzhou, China
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33
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Li XL, Xiao HT, Li YC, Li YG, Zhang J, Feng K, Di HP, Tian SM, Lou JH, Xia CD. [Effects of citric acid on patients with severe burn complicated with acute renal injury treated by continuous renal replacement therapy]. Zhonghua Shao Shang Za Zhi 2019; 35:568-573. [PMID: 31474035 DOI: 10.3760/cma.j.issn.1009-2587.2019.08.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To explore the effects of citric acid on patients with severe burn complicated with acute renal injury treated by continuous renal replacement therapy (CRRT). Methods: Medical records of 83 patients with large area of burn complicated with acute renal injury admitted to intensive care unit (ICU) of our department from January 2015 to December 2018 and meeting the inclusion criteria were analyzed retrospectively. The patients were divided into heparin group [n=43, 25 males and 18 females, aged (35.0±2.5) years] and citric acid group [n=40, 22 males and 18 females, aged (37.0±6.6) years] according to different anticoagulation methods. After admission, routine support treatment and CRRT were performed after being diagnosed with acute renal injury in patients in 2 groups. Patients in heparin group were treated with low molecular weight heparin for anticoagulation with first dosage of 20 U/kg and an increase of 2.5 to 5.0 U per hour, and patients in citric acid group were given citric acid of 0.02 g/mL with dosage of 150~200 mL/h for anticoagulation. The use time of blood filter, recovery time of urine volume, and time of staying in ICU, and platelet count, activated partial thromboplastin time (APTT), prothrombin time (PT), and serum creatinine, urea nitrogen, cystatin C, procalcitonin, C-reactive protein, and neutrophil, leukocyte count, blood sugar, aspartate aminotransferase (AST), alanine aminotransferase (ALT), and heart rate, body temperature, and mean arterial pressure before treatment and post treatment hour (PTH) 24 were recorded. Besides, occurrence of hemorrhage, hypocalcemia, metabolic acidosis, metabolic alkalosis, and death within 28 days post injury were recorded. Data were processed with t test and chi-square test. Results: The use time of blood filter of patients in citric acid group was (28.7±3.2)h, significantly longer than (19.4±2.6) h in heparin group (t=14.139, P<0.01). The recovery time of urine volume and time of staying in ICU of patients in citric acid group were respectively (7.6±0.9) and (9.6±1.3) d, significantly shorter than (9.2±1.5) and (11.2±1.8) d in heparin group (t=5.516, 4.697, P<0.01). Before treatment, there were no statistically significant differences in platelet count, APTT, and PT of patients in 2 groups (t=1.235, 0.515, 1.279, P>0.05). At PTH 24, the platelet count of patients in citric acid group was significantly higher than that in heparin group (t=10.947, P<0.01), and APTT and PT of patients in citric acid group were significantly shorter than those in heparin group (t=7.069, 9.142, P<0.01). Before treatment, there were no statistically significant differences in serum creatinine, urea nitrogen, and cystatin C of patients in 2 groups (t=1.684, 1.878, 1.472, P>0.05). At PTH 24, the serum creatinine, urea nitrogen, and cystatin C of patients in citric acid group were significantly lower than those in heparin group (t=7.778, 9.776, 5.117, P<0.01). Before treatment, there were no statistically significant differences in serum procalcitonin and C-reactive protein of patients in 2 groups (t=1.413, 0.898, P>0.05). At PTH 24, the serum procalcitonin and C-reactive protein of patients in citric acid group were significantly lower than those in heparin group (t=2.635, 2.297, P<0.05). Before treatment, there were no statistically significant differences in neutrophil, leukocyte count, blood sugar, AST, and ALT of patients in 2 groups (t=0.555, 0.816, 0.470, 1.896, 0.982, P>0.05). At PTH 24, the neutrophil, leukocyte count, blood sugar, AST, and ALT of patients in citric acid group were significantly lower than those in heparin group (t=2.054, 3.314, 7.185, 2.151, 3.013, P<0.05 or P<0.01). Before treatment, there were no statistically significant differences in heart rate, body temperature, and mean arterial pressure of patients in 2 groups (t=1.406, 0.474, 0.720, P>0.05). At PTH 24, the heart rate, body temperature, and mean arterial pressure of patients in citric acid group were significantly lower than those in heparin group (t=2.307, 4.498, 2.056, P<0.05 or P<0.01). The incidence of hemorrhage of patients in citric acid group while in hospital was significantly lower than that in heparin group (χ(2)=4.949, P<0.05). There were no statistically significant differences in incidence of hypocalcemia, metabolic acidosis, metabolic alkalosis, and death rate within 28 days post injury of patients in 2 groups while in hospital (χ(2)=3.346, 0.884, 0.297, 0.324, P>0.05). Conclusions: Citric acid has significant anticoagulant effect on patients with large area of burn complicated with acute renal injury treated by CRRT, which can prolong the use time of the blood filter, shorten the recovery time of urine volume and time of staying in ICU, improve renal function indexes, blood biochemical indexes, and inflammation indexes, maintain the stability of internal environment, and reduce the risk of hemorrhage.
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Affiliation(s)
- X L Li
- Department of Burns, Zhengzhou First People's Hospital, Zhengzhou 450004, China
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Ma ZZ, Feng K. [Transition in the treatment viewpoint and method for injured eyes with no light perception]. Zhonghua Yan Ke Za Zhi 2019; 55:645-646. [PMID: 31495149 DOI: 10.3760/cma.j.issn.0412-4081.2019.09.003] [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] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Exploratory pars plana vitrectomy (EPPV) made one quarter of injured eyes with no light perception (NLP) rescued. Previously, the clinical routine in making a decision of enucleation for injured eyes with NLP was based on preoperative evaluation. Such ideas, however, have altered with development of EPPV. Some extraordinary lesions can be explored in those moribund eyes during EPPV and dealt with newly developed techniques. This article reveals the pathological basis of traumatized NLP eyes and the advantages and effects of EPPV, and puts forward the concept that decision making of enucleation should be based on findings obtained during EPPV. (Chin J Ophthalmol, 2019, 55: 645-646).
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Affiliation(s)
- Z Z Ma
- Department of Ophthalmology, Peking University Third Hospital, Beijing 100191, China
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35
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Xia CD, Di HP, Xing PP, Xue JD, Cao DY, Tian SM, Wang LM, Feng K, Zhao YH. [Clinical effect of free anterolateral thigh flap in repairing large annular soft tissue defect of lower leg after burn]. Zhonghua Shao Shang Za Zhi 2019; 35:248-252. [PMID: 31060171 DOI: 10.3760/cma.j.issn.1009-2587.2019.04.003] [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] [Indexed: 11/05/2022]
Abstract
Objective: To explore the clinical effect of free anterolateral thigh flap in repairing large annular soft tissue defect of lower leg after burn. Methods: From January 2014 to December 2018, 9 patients with large annular soft tissue defects of lower legs after burns were hospitalized in Zhengzhou First People's Hospital, including 1 case with wounds on both legs. After debridement, area of wounds was 16 cm×11 cm-38 cm×21 cm, and the burn wounds were repaired with free anterolateral thigh flaps in the area of 18 cm×12 cm-32 cm×24 cm. End-to-end anastomosis of posterior tibial vessels or anterior tibial vessels with lateral circumflex femoral vessels was performed in manual way or by microvascular stapler. For the affected legs without condition for anastomosis, the sound medial lower leg flaps with areas of 10 cm×8 cm-15 cm×10 cm were excised and made into skin tubes, the posterior tibial vessels of the flaps were anastomosed with the vessels of free anterolateral femoral flaps, and the wounds of the injured lower legs were repaired by bridge-type cross-over free transplantation of anterolateral thigh flaps. The pedicles were broken 4 to 5 weeks later. The donor site was transplanted with autologous intermediate split-thickness skin graft from thigh. The outcome of the treatment, the number of perforators included in the flaps, and the anastomotic vessel in the recipient area of patients were recorded. The anastomosis time between manual way and microvascular staplers was recorded and compared. The patency of blood vessels, methods of free transplantation, and follow-up condition were recorded. Data were processed with Wilcoxon rank sum test for two independent samples. Results: All the 10 free flaps and skin grafts of 9 patients survived, and all the wounds were closed by primary operation. Seven flaps contained two perforators each, and three flaps contained three perforators each. The anastomotic vessels were posterior tibial vessels in 6 recipient areas and anterior tibial vessels in 4 recipient areas. Microvascular stapler was used to anastomose 12 veins, while 8 veins and 10 arteries were anstomosed manually. The time consumed by the former method was 4.00 (3.55, 4.38) min, significantly shorter than 12.80 (12.13, 13.40) min of the latter (W=78.00, P<0.01). The patency rates of veins and arteries were 100%. There was no vascular crisis due to vascular anastomosis. Three patients underwent bridge-type cross-over free transplantation, while the others underwent conventional free transplantation. Follow-up for 3 to 30 months showed that the donor site of the thigh had good motor function, without numbness or pain, but hypertrophy of scar could be seen. Four patients had slightly overstaffed flaps transplanted in the recipient area of the lower legs, while the other patients were satisfied with their appearance, and the walking function of the affected limbs gradually recovered. Conclusions: Free anterolateral thigh flap transplantation is a safe and reliable clinical limb salvage method for the repair of large annular soft tissue defect of lower leg after burn. Intraoperative application of microvascular stapler for venous anastomosis can shorten the time of vascular anastomosis and has great clinical application value.
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Affiliation(s)
- C D Xia
- Department of Burns, Zhengzhou First People's Hospital, Zhengzhou 450004, China
| | - H P Di
- Department of Burns, Zhengzhou First People's Hospital, Zhengzhou 450004, China
| | - P P Xing
- Department of Burns, Zhengzhou First People's Hospital, Zhengzhou 450004, China
| | - J D Xue
- Department of Burns, Zhengzhou First People's Hospital, Zhengzhou 450004, China
| | - D Y Cao
- Department of Burns, Zhengzhou First People's Hospital, Zhengzhou 450004, China
| | - S M Tian
- Department of Burns, Zhengzhou First People's Hospital, Zhengzhou 450004, China
| | - L M Wang
- Department of Burns, Zhengzhou First People's Hospital, Zhengzhou 450004, China
| | - K Feng
- Department of Burns, Zhengzhou First People's Hospital, Zhengzhou 450004, China
| | - Y H Zhao
- Department of Burns and Plastic Surgery, the People's Hospital of Jiangyin of Jiangsu Province, Jiangyin 214400, China
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36
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Pan J, Feng K, Chen LL, Li H, Zhu JC, He Y. [Takotsubo syndrome followed with postoperative colon aneurysm: a case report]. Zhonghua Nei Ke Za Zhi 2019; 58:307-309. [PMID: 30917425 DOI: 10.3760/cma.j.issn.0578-1426.2019.04.013] [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: 06/09/2023]
Affiliation(s)
- J Pan
- Health Management Center, Affiliated Hospital of Chengdu University, Chengdu 610081, China
| | - K Feng
- Cardiovascular Department, Affiliated Hospital of Chengdu University, Chengdu 610081, China
| | - L L Chen
- Department of Intensive Care Unit, Affiliated Hospital of Chengdu University, Chengdu 610081, China
| | - H Li
- Department of Intensive Care Unit, Affiliated Hospital of Chengdu University, Chengdu 610081, China
| | - J C Zhu
- Department of Intensive Care Unit, Affiliated Hospital of Chengdu University, Chengdu 610081, China
| | - Y He
- Department of Intensive Care Unit, Affiliated Hospital of Chengdu University, Chengdu 610081, China
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Feng K, Cai Z, Ding T, Yan H, Liu X, Zhang Z. Effects of potassium‐solubulizing and photosynthetic bacteria on tolerance to salt stress in maize. J Appl Microbiol 2019; 126:1530-1540. [DOI: 10.1111/jam.14220] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2018] [Revised: 02/02/2019] [Accepted: 02/07/2019] [Indexed: 11/29/2022]
Affiliation(s)
- K. Feng
- Department of Biological Technology Institute of Chemistry and Biological Engineering University of Science and Technology Beijing BeijingPeople's Republic of China
| | - Z. Cai
- Department of Biological Technology Institute of Chemistry and Biological Engineering University of Science and Technology Beijing BeijingPeople's Republic of China
| | - T. Ding
- Department of Biological Technology Institute of Chemistry and Biological Engineering University of Science and Technology Beijing BeijingPeople's Republic of China
| | - H. Yan
- Department of Biological Technology Institute of Chemistry and Biological Engineering University of Science and Technology Beijing BeijingPeople's Republic of China
| | - X. Liu
- Department of Biological Technology Institute of Chemistry and Biological Engineering University of Science and Technology Beijing BeijingPeople's Republic of China
| | - Z. Zhang
- Beijing Agro‐Biotechnology Research Center Beijing Academy of Agriculture and Forestry Sciences Beijing People's Republic of China
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Yang T, Luo Q, Feng K, Jin XL, Zhang J. [Expression of Foxm1 in chronic sinusitis and itsrelationship with MUC5AC]. Lin Chung Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2018; 30:1053-1057. [PMID: 29798037 DOI: 10.13201/j.issn.1001-1781.2016.13.012] [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: 12/13/2015] [Indexed: 11/12/2022]
Abstract
Objective:To explore the expression of Forkhead box protein m1(Foxml) in the sinus mucosa of patients with chronic rhinosinusitis(CRS) and the relationship between Foxm1 and MUC5AC for further understanding of the pathogenesis of CRS.Method:We obtained the sinus mucosa from 25 CRS with polyps(CRSwNP) patients and 25 CRS without polyps (CRSsNP) patients as two experimental groups.Nasal mucosa from 15 normol cases were obtained as control group.We used HE,Periodic acid-schiff staining to observe the histopathological change of each sample.The expression of Foxm1 and MUC5AC were determined by immunohistochemistry(IHC) and qRT-PCR in each group.We also analysed the relationship between Foxm1 and MUC5AC.Result:The HE and PAS staining showed that in the CRSwNP and CRSsNP patients,the main histopathological features was the hyperplasia of goblet cell,inflammatory cell and submucosal gland.IHC showed that Foxm1 and MUC5AC expression were higher in CRSwNP and CRSsNP compared with normal sinus mucosa.qRT-PCR also revealed that Foxm1 and MUC5AC expression was higher in CRSwNP and CRSsNP than in normal mucosa(P<0.05).Foxm1 and MUC5AC had a significant positive correlation.Conclusion:The expressions of Foxm1 and MUC5AC were increased in CRS,and Foxm1 may play an important role in the process of hypersecretion of MUC5AC in CRS.
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Affiliation(s)
- T Yang
- Department of Otorhinolaryngology,Jiangxi Health Vocational College,Nanchang,330052,China
| | - Q Luo
- Department of Otorhinolaryngology-Head and Neck Surgery,the First Affiliated Hospital of Nanchang University
| | - K Feng
- Department of Otorhinolaryngology-Head and Neck Surgery,the First Affiliated Hospital of Nanchang University
| | - X L Jin
- Department of Otorhinolaryngology-Head and Neck Surgery,the First Affiliated Hospital of Nanchang University
| | - J Zhang
- Department of Otorhinolaryngology-Head and Neck Surgery,the First Affiliated Hospital of Nanchang University
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Zhang Y, Feng K, Hu J, Shi L, Wei P, Xu Z, Shen G, Li M, Xu Q, He L. A microRNA-1 gene, tci-miR-1-3p, is involved in cyflumetofen resistance by targeting a glutathione S-transferase gene, TCGSTM4, in Tetranychus cinnabarinus. Insect Mol Biol 2018; 27:352-364. [PMID: 29424082 DOI: 10.1111/imb.12375] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
microRNA-1 (miR-1) is a well-studied conservative microRNA (miRNA) involved in immune responses in mammals and insects. However, little is known about its role in pesticide resistance in arthropods. In this study, we found that a microRNA belong to miR-1 family (tci-miR-1-3p) was significantly down-regulated in a cyflumetofen-resistant strain (CYR) of Tetranychus cinnabarinus compared with its homologous susceptible strain (SS), indicating an involvement of miR-1 in cyflumetofen resistance in mites. One glutathione S-transferase (GST) gene (TCGSTM4, a mu class GST gene), a candidate target gene of tci-miR-1-3p, was found to be significantly down-regulated when tci-miR-1-3p was over-expressed. The specific interaction between tci-miR-1-3p and the target sequence in the 3' untranslated region of TCGSTM4 was confirmed. A decrease or increase in tci-miR-1-3p abundance through feeding miRNA inhibitors or mimics significantly increased or decreased TCGSTM4 expressions at the mRNA and protein levels, respectively. In addition, an over-expression of tci-miR-1-3p resulted in a decrease in the tolerance of T. cinnabarinus to cyflumetofen in both SS and CYR strains, and vice versa. After decreasing TCGSTM4 transcription via RNA interference, T. cinnabarinus became more sensitive to cyflumetofen in both resistant and susceptible mites, and the change in mortality was greater in CYR than that in SS. Moreover, the recombinant TCGSTM4 could significantly decompose cyflumetofen, indicating that TCGSTM4 is a functional gene responsible for cyflumetofen resistance in mites.
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Affiliation(s)
- Y Zhang
- Academy of Agricultural Sciences, College of Plant Protection, Southwest University, Chongqing, China
| | - K Feng
- Academy of Agricultural Sciences, College of Plant Protection, Southwest University, Chongqing, China
| | - J Hu
- Academy of Agricultural Sciences, College of Plant Protection, Southwest University, Chongqing, China
| | - L Shi
- Academy of Agricultural Sciences, College of Plant Protection, Southwest University, Chongqing, China
| | - P Wei
- Academy of Agricultural Sciences, College of Plant Protection, Southwest University, Chongqing, China
| | - Z Xu
- Academy of Agricultural Sciences, College of Plant Protection, Southwest University, Chongqing, China
| | - G Shen
- Academy of Agricultural Sciences, College of Plant Protection, Southwest University, Chongqing, China
| | - M Li
- Department of Entomology, University of California, Riverside, CA, USA
| | - Q Xu
- Department of Biology, Abilene Christian University, Abilene, TX, USA
| | - L He
- Academy of Agricultural Sciences, College of Plant Protection, Southwest University, Chongqing, China
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Liu J, Feng K, Zhao L, Luo H, Zhu Y. Improvement of cytomegalovirus pp65 DNA vaccine efficacy by co-administration of siRNAs targeting BAK and BAX. Exp Ther Med 2017; 13:3275-3280. [PMID: 28587400 PMCID: PMC5450512 DOI: 10.3892/etm.2017.4385] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [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: 01/08/2016] [Accepted: 01/26/2017] [Indexed: 01/09/2023] Open
Abstract
The efficacy of DNA vaccines may be improved by small interfering (si)RNA adjuvants targeting pro-apoptotic genes. The aim of the present study was to investigate the capacity of siRNAs targeting B-cell lymphoma 2 homologous antagonist killer (BAK) and B-cell lymphoma 2-associated X protein (BAX) to improve the efficacy of a cytomegalovirus (CMV) vaccine. BALB/c mice were divided into four groups (n=18 in each): unimmunized and immunized with pcDNA 3.1-pp65 expressing CMV 65 kDa matrix phosphoprotein and BAK + BAX siRNAs, pcDNA 3.1-pp65 and control siRNA, or control pcDNA 3.1 and BAK + BAX siRNAs. Immunizations were performed twice with an interval of 3 weeks. CMV-specific mouse splenocyte interferon (IFN)-γ secretion was assessed by ELISPOT; furthermore, an in vivo cytotoxic T lymphocyte assay was performed 2 weeks after the last immunization. After lethal CMV challenge of the mice, body weight, virus titers in the spleens and salivary glands as well as survival were recorded. The amount of splenocytes secreting IFN-γ in response to CMV pp65 peptides and specific lysis of peptide-pulsed target cells were significantly higher in mice administered pcDNA3.1-pp65 and BAK + BAX siRNAs than those in mice administered pcDNA3.1-pp65 and control siRNA (P<0.05 for each). After the virus challenge, the virus titers in the spleens and salivary glands of mice given pcDNA3.1-pp65 and BAK + BAX siRNAs were significantly lower than those in mice immunized with pcDNA3.1-pp65 and control siRNA (P<0.05 for each). Furthermore, mice immunized with pcDNA 3.1-pp65 and control siRNA or BAK + BAX siRNAs survived for longer, and at 21 days after lethal CMV challenge, 66 and 100% of these mice survived, respectively. These mice also experienced less weight loss compared with mice immunized with pcDNA3.1-pp65 and control siRNA (P<0.05). In conclusion, intradermal administration of siRNAs targeting BAK and BAX improved the efficacy of CMV pp65 DNA vaccine.
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Affiliation(s)
- Jixiao Liu
- Department of Gynecology, Tianjin Obstetrics and Gynecology Center Hospital, Tianjin 300052, P.R. China
| | - Keke Feng
- Department of Neurosurgery, Huanhu Hospital, Tianjin 300060, P.R. China
| | - Lu Zhao
- Department of Gynecology, Tianjin Obstetrics and Gynecology Center Hospital, Tianjin 300052, P.R. China
| | - Haining Luo
- Department of Gynecology, Tianjin Obstetrics and Gynecology Center Hospital, Tianjin 300052, P.R. China
| | - Yingjun Zhu
- Department of Gynecology, Tianjin Obstetrics and Gynecology Center Hospital, Tianjin 300052, P.R. China
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Dang Z, Fu Y, Duo H, Fan H, Qiao Z, Guo Z, Feng K, Chui W, Shen X, Geng Qiu J, Ni M, He S, Zhao H, Peng M, Xiao N, Nonaka N, Nasu T, Huang F, Oku Y, Hayashimoto N, Hu W, Li W. An epidemiological survey of echinococcosis in intermediate and definitive hosts in Qinghai Province, China. Trop Biomed 2017; 34:483-490. [PMID: 33593033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
In order to understand the epidemiological status of alveolar and cystic echinococcosis in intermediate and definitive hosts in Qinghai Province, China, during the period 2007-2011, we investigated the infection in humans and animals, including yaks, Tibetan sheep, Tibetan dogs, and wild foxes distributed in different counties around the province. Sera from local residents were examined using a rapid serodiagnostic kit to detect specific antibodies against Echinococcus. Seropositive samples were confirmed with B-scan ultrasonography and X-ray examinations. Yaks and Tibetan sheep were checked at slaughterhouses, and cysts and suspicious lesions were collected for analysis. A rapid diagnostic strip was used to detect Echinococcus adults in Tibetan dogs. Positive dogs were dewormed and the parasites collected. Wild foxes were trapped and necropsies performed with particular attention to the intestine. Forty-eight of 735 (6.4%) humans tested were positive and 475 of 854 (55.6%) Tibetan sheep and 85 of 352 (24.15%) yaks were infected with Echinococcus. Across different counties, 214 of 948 (22.57%) Tibetan dogs were positive, and five of 36 (13.9%) wild foxes were infected with Echinococcus. Molecular studies showed that all the infections detected in humans, domestic yaks, and Tibetan sheep were the G1 genotype (E. granulosus), whereas the parasites from Tibetan foxes and Tibetan dogs were E. shiquicus and E. multilocularis, respectively. In conclusion, Echinococcosis is hyperendemic in Qinghai Province in both its intermediate and definitive hosts and the G1 genotype of cystic Echinococcus is the dominant strain.
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Affiliation(s)
- Z Dang
- Key Laboratory on Biology of Parasite and Vector, Ministry of Health, Shanghai, China; National Center for International Research on Tropical Diseases, Shanghai, China; WHO Collaborating Center for Tropical Diseases, Shanghai, China; National Institute of Parasitic Diseases, Chinese Center for Disease Control and Prevention, Shanghai 200025, China
| | - Y Fu
- Academy of Animal and Veterinary Medicine, Qinghai University of Animal and Veterinary Sciences, Xining 810016, China
| | - H Duo
- Academy of Animal and Veterinary Medicine, Qinghai University of Animal and Veterinary Sciences, Xining 810016, China
| | - H Fan
- Affiliated Hospital of Qinghai University, Xining 810016, China
| | - Z Qiao
- Academy of Animal and Veterinary Medicine, Qinghai University of Animal and Veterinary Sciences, Xining 810016, China
| | - Z Guo
- Key Laboratory on Biology of Parasite and Vector, Ministry of Health, Shanghai, China; National Center for International Research on Tropical Diseases, Shanghai, China; WHO Collaborating Center for Tropical Diseases, Shanghai, China; National Institute of Parasitic Diseases, Chinese Center for Disease Control and Prevention, Shanghai 200025, China
- Affiliated Hospital of Qinghai University, Xining 810016, China
| | - K Feng
- Academy of Animal and Veterinary Medicine, Qinghai University of Animal and Veterinary Sciences, Xining 810016, China
- Laboratory of Veterinary Parasitic Diseases, Department of Veterinary Sciences, Faculty of Agriculture, University of Miyazaki, Miyazaki 889-2192, Japan
| | - W Chui
- Academy of Animal and Veterinary Medicine, Qinghai University of Animal and Veterinary Sciences, Xining 810016, China
| | - X Shen
- Academy of Animal and Veterinary Medicine, Qinghai University of Animal and Veterinary Sciences, Xining 810016, China
| | - J Geng Qiu
- Zhen Qin Township Veterinary Station, Chengduo 815100, China
| | - M Ni
- Haiyan Veterinary Stations, Haiyan 812200, China
| | - S He
- Haiyan Veterinary Stations, Haiyan 812200, China
| | - H Zhao
- Medical College of Qinghai University, Xining 810016, China
| | - M Peng
- Academy of Animal and Veterinary Medicine, Qinghai University of Animal and Veterinary Sciences, Xining 810016, China
| | - N Xiao
- Key Laboratory on Biology of Parasite and Vector, Ministry of Health, Shanghai, China; National Center for International Research on Tropical Diseases, Shanghai, China; WHO Collaborating Center for Tropical Diseases, Shanghai, China; National Institute of Parasitic Diseases, Chinese Center for Disease Control and Prevention, Shanghai 200025, China
| | - N Nonaka
- Laboratory of Veterinary Parasitic Diseases, Department of Veterinary Sciences, Faculty of Agriculture, University of Miyazaki, Miyazaki 889-2192, Japan
| | - T Nasu
- Laboratory of Veterinary Parasitic Diseases, Department of Veterinary Sciences, Faculty of Agriculture, University of Miyazaki, Miyazaki 889-2192, Japan
| | - F Huang
- Parasitology Laboratory, School of Veterinary Medicine, Faculty of Agriculture, Tottori University, Tottori 680-8553, Japan
| | - Y Oku
- Parasitology Laboratory, School of Veterinary Medicine, Faculty of Agriculture, Tottori University, Tottori 680-8553, Japan
| | - N Hayashimoto
- ICLAS Monitoring Center, Central Institute for Experimental Animals, 3-25-12 Tonomachi, Kawasaki, Kanagawa 210-0821, Japan
| | - W Hu
- Key Laboratory on Biology of Parasite and Vector, Ministry of Health, Shanghai, China; National Center for International Research on Tropical Diseases, Shanghai, China; WHO Collaborating Center for Tropical Diseases, Shanghai, China; National Institute of Parasitic Diseases, Chinese Center for Disease Control and Prevention, Shanghai 200025, China
| | - W Li
- Academy of Animal and Veterinary Medicine, Qinghai University of Animal and Veterinary Sciences, Xining 810016, China
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Feng K, Guo HK, Zhang YL, Wu Z. [Visual quality comparison after multifocal toric intraocular lens or monofocal toric intraocular lens implantation]. Zhonghua Yan Ke Za Zhi 2017; 53:274-280. [PMID: 28412800 DOI: 10.3760/cma.j.issn.0412-4081.2017.04.009] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To compare visual quality and satisfaction after multifocal toric intraocular lens (Acrysof IQ Restor toric, ART) and monofocal toric intraocular lens implantation in patients. Methods: It was a prospective nonrandomized Phase Ⅲ clinical trial. Patients with age-related cataract and corneal astigmatism were enrolled and accepted phacoemulsification combined with implantation of intraocular lens (IOL) in Henan Provincial Eye Hospital during March 2013 to December 2014. Fifty-six cases were divided into two groups according to which IOL they chose. ART group included 28 cases (3l eyes) aged from 41.0 to 72.0 years, with an average age of 61.5 years; toric group included 28 cases (33 eyes) aged from 42.0 to 75.0 years, with an average age of 63.5 years. Three months postoperatively, uncorrected distance visual acuity (UDVA) at 5, 70, 40 cm, corrected distance, intermediate, and near visual acuities, defocus curve, residual refractive astigmatism, rotational stability of the IOL, contrast sensitivity and patientsatisfaction were evaluated. All data were processed by statistic package deal SPSS 16.0. Postoperative visual acuity, residual astigmatism, IOL axial rotation and contrast sensitivity were compared by independent samples t test; preoperative and postoperative corneal astigmatism were compared by paired t-test; spectacle independency and halo incidence were processed by χ(2) test; visual satisfaction score was analyzed by Mann-Whitney test. Results: At 3 months postoperatively, in ART group, UDVA was (0.04±0.05), UIVA was (0.24±0.15), UNVA was (0.20±0.24). While in Toric group, UDVA was (0.06±0.04), UIVA was (0.30±0.13), UNVA was (0.47±0.21). There was no significant difference in UDVA between two groups(t=0.79, P=0.433). But in ART group, UIVA and UNVA were markedly better than those in Toric group(t=2.74, P=0.008; t=3.45, P<0.01). Depth of focus was 5.50 D (+2.00--3.50 D) in the ART group and 2.50 D (+1.00--1.50 D) in the Toric group. Average postoperative residual astigmatism was (-0.45±0.41)D in ART group and (-0.41±0.32)D in the Toric group. There was no significant difference between two groups (t=1.05, P=0.304). Average IOL rotation test was (2.95°±1.34°) in the ART group and (2.75°±1.64°) in the Toric group. There was no significant difference between two groups (t=0.67, P=0.452). Spectacle independency was achieved by 85.7% of patients in the ART group and 32.1% in the Toric group. There was no signifcant difference in distant visual satisfaction scores between the two groups(Z=0.71, P>0.05), while the intermediate and near visual satisfaction scores were significantly different(Z=2.27, P<0.05; Z=2.60, P<0.05) Conclusions: Both of the ART IOL and toric IOL can correct patients astigmatism. Implantation of ART IOL in patients with cataract and corneal astigmatism provided excellent distance, intermediate, and near visual outcomes. It provided better predictability of the refractive results, nice rotational stability, and good optical performance. At the same time, it improved the spectacle independency of cataract patients with astigmatism. (Chin J Ophthalmol, 2017, 53: 274-280).
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Affiliation(s)
- K Feng
- Henan Eye Hospital, Zhengzhou 450000, China
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Zhang P, Feng K, Xue Y, Zhang CX, Wang Y, Li XL. Clinical applications of haploidentical hematopoietic stem cell transplantation in severe aplastic anemia. Eur Rev Med Pharmacol Sci 2017; 21:155-161. [PMID: 28121342] [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: 06/06/2023]
Abstract
OBJECTIVE The purpose of this study was to investigate the efficacy and safety of haploidentical allogeneic hemopoietic stem cell transplantation (allo-HSCT) in severe aplastic anemia (SAA) and prophylaxis of complications involved. PATIENTS AND METHODS 8 patients with clinically diagnosed SAA (5 cases of SAA-I and 3 cases of SAA-II) were recruited, with the parents as the donors of hemopoietic stem cells. The conditioning regimen before HSCT included cyclophosphamide, fludarabine, pig anti-human lymphocyte immune globulin (p-ALG) and/or total body irradiation (TBI). The recipients received short-term methotrexate (MTX), mycophenolate mofetil (MMF), and cyclosporin A (CsA) for graft versus host disease (GVHD) prophylaxis. Subsequent to successful allo-HSCT, the hematopoietic reconstitution was observed, coupled with periodical surveillance of the chimerism rate, the occurrence, and severity of postoperative complications as infection, GVHD, veno-occlusive disease (VOD), hemorrhagic cystitis (HC), cytomegalovirus (CMV) as well as the long-term survival rate, etc. RESULTS We found that hematopoietic reconstruction was achieved in all of the 8 patients with the average time of 14.8d for absolute neutrophil count (ANC) > 0.5×109/L, and the average time of 15.0d for platelet count was more than 20×109/L. Follow-up for 1 month later revealed that DNA chimeric rate of donor cells was 95%-100%. The complications were aGVHD in 7 cases including 5 cases of grade I-II (62.5%), 1 case of grade III (12.5%) and 1 case of grade IV (12.5%), as well as chronic graft versus host disease (cGVHD) in 2 patients, including 1 case (12.5%) localized in the oral cavity and 1 case (12.5%) with extensive type cGVHD in the whole body skin. No VOD or HC was observed, and no transplantation-related death occurred at median following-up of 8.5 months (2 to 18 months). CONCLUSIONS Allo-HSCT is safe and effective in patients with SAA and has great clinical perspective.
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Affiliation(s)
- P Zhang
- Department of Hematology, The Affiliated XuZhou Hospital of Medical College of Southeast University, Xuzhou Central Hospital, Xuzhou, Jiangsu Province, China.
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Yin S, Jin W, Li Q, Feng M, Feng K, Shao H, Zhang X, Wang S. Complete prefrontal lobe isolation surgery for recurrent epilepsy: A case report. Exp Ther Med 2016; 12:3029-3034. [PMID: 27882111 DOI: 10.3892/etm.2016.3714] [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] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2015] [Accepted: 03/22/2016] [Indexed: 01/30/2023] Open
Abstract
Epileptogenic focus resection is less effective for the treatment of frontal lobe epilepsy compared with temporal lobe epilepsy. However, there is currently a lack of effective therapeutic options for patients with frontal lobe epilepsy who are unsuitable for epileptogenic focus resection (such patients with epileptogenic foci in one frontal lobe in which the precise epileptic foci cannot be determined), or who experience recurrent epilepsy following epileptogenic focus resection. The present study reports a patient with frontal lobe epilepsy who underwent successful frontal lobe isolation surgery following a previous unsuccessful epileptogenic focus resection surgery. To ensure complete isolation of the prefrontal lobe, the surgery included division of the anterior commissure and the anterior part of the corpus callosum. The patient was followed-up for 16 months. Although the follow-up electroencephalogram presented a number of sharp waves on the affected side, the patient did not experience any seizures. The results suggest that prefrontal lobe isolation is an effective method of treating frontal lobe epilepsy, as division of the anterior commissure and the anterior part of the corpus callosum ensures disconnection of the prefrontal lobe from other regions of the brain.
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Affiliation(s)
- Shaoya Yin
- Department of Neurosurgery, Tianjin Huanhu Hospital, Tianjin 300060, P.R. China
| | - Weipeng Jin
- Department of Neurosurgery, Second Affiliated Hospital, Tianjin Medical University, Tianjin 300211, P.R. China
| | - Qingyun Li
- Department of Neurology, Tianjin Huanhu Hospital, Tianjin 300060, P.R. China
| | - Mei Feng
- Department of Nerve Electrophysiology, Tianjin Huanhu Hospital, Tianjin 300060, P.R. China
| | - Keke Feng
- Department of Neurosurgery, Tianjin Huanhu Hospital, Tianjin 300060, P.R. China
| | - Hui Shao
- Department of Neurosurgery, Tianjin Huanhu Hospital, Tianjin 300060, P.R. China
| | - Xueqing Zhang
- Department of Nerve Electrophysiology, Tianjin Huanhu Hospital, Tianjin 300060, P.R. China
| | - Shimin Wang
- Department of Neurology, Tianjin Huanhu Hospital, Tianjin 300060, P.R. China
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Feng K, Streyer W, Zhong Y, Hoffman AJ, Wasserman D. Photonic materials, structures and devices for Reststrahlen optics. Opt Express 2015; 23:A1418-A1433. [PMID: 26698791 DOI: 10.1364/oe.23.0a1418] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
We present a review of existing and potential next-generation far-infrared (20-60 μm) optical materials and devices. The far-infrared is currently one of the few remaining frontiers on the optical spectrum, a space underdeveloped and lacking in many of the optical and optoelectronic materials and devices taken for granted in other, more technologically mature wavelength ranges. The challenges associated with developing optical materials, structures, and devices at these wavelengths are in part a result of the strong phonon absorption in the Reststrahlen bands of III-V semiconductors that collectively span the far-infrared. More than just an underexplored spectral band, the far-IR may also be of potential importance for a range of sensing applications in astrochemistry, biology, and industrial and geological processes. Additionally, with a suitable far-IR optical infrastructure, it is conceivable that even more applications could emerge. In this review, we will present recent progress on far-infrared materials and phenomena such as phononic surface modes, engineered composite materials, and optoelectronic devices that have the potential to serve as the next generation of components in a far-infrared optical tool-kit.
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Yin S, Feng K, Feng M, Zhang X, Zhang Y. Posterior quadrantic disconnection maintains the activity of isolated temporal-parietal-occipital nerve tissue: neuroprotective measures in the surgical treatment of epilepsy. Neural Regen Res 2014; 9:447-8. [PMID: 25206834 PMCID: PMC4146202 DOI: 10.4103/1673-5374.128259] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/09/2014] [Indexed: 11/10/2022] Open
Affiliation(s)
- Shaoya Yin
- Department of Neurosurgery, Tianjin Huanhu Hospital, Tianjin, China
| | - Keke Feng
- Department of Neurosurgery, Tianjin Huanhu Hospital, Tianjin, China
| | - Mei Feng
- Department of Electroneurophysiology, Tianjin Huanhu Hospital, Tianjin, China
| | - Xueqing Zhang
- Department of Electroneurophysiology, Tianjin Huanhu Hospital, Tianjin, China
| | - Yuqin Zhang
- Department of Pediatric Neurology, Tianjin Children's Hospital, Tianjin, China
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Abstract
BACKGROUND Angiocidin plays a key role in angiogenesis and tumor progression. High angiocidin expression is detected in some kind of solid tumors and tumor vascular endothelial cells. Several reports have shown the inhibition of angiogenesis and tumor growth caused by angiocidin. However, the role of angiocidin in liver cancers growth is still unclear. OBJECTIVES To examine angiocidin expression in SMMC-7221 and HepG2 cells and the role of angiocidin in liver cancer cell growth. METHODS RT-PCR and western blot are used in this study to detect angiocidin expression. SiRNA and MTT experiments are used in exploring the role of angiocidin in tumor cell growth. RESULTS Our study showed high angiocidin expression in two kinds of liver cancer cells. Angiocidin protein production in HepG2 cells were reduced significantly by siRNA. When HepG2 cells were transfected with siRNA-angiocidin, these cells showed very low proliferation activity compared with control cells. Our study suggests that reduction of angiocidin may contribute to decreased proliferation activity in liver cancer cells. CONCLUSION Angiocidin is highly expressed in liver cancer cells, and it may play a key role in tumor growth of liver cancers.
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Affiliation(s)
- X G Guan
- Life Science Research Center, Beihua University, Jilin, Jilin Province, China
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Ping HC, Feng K, Zhang GR, Wei KJ, Zou GW, Wang WM. Ontogeny expression of ghrelin, neuropeptide Y and cholecystokinin in blunt snout bream, Megalobrama amblycephala. J Anim Physiol Anim Nutr (Berl) 2013; 98:338-46. [DOI: 10.1111/jpn.12084] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2013] [Accepted: 04/16/2013] [Indexed: 12/14/2022]
Affiliation(s)
- H.-C. Ping
- Key Laboratory of Freshwater Animal Breeding; Ministry of Agriculture; College of Fisheries; Huazhong Agricultural University; Wuhan China
| | - K. Feng
- Key Laboratory of Freshwater Animal Breeding; Ministry of Agriculture; College of Fisheries; Huazhong Agricultural University; Wuhan China
| | - G.-R. Zhang
- Key Laboratory of Freshwater Animal Breeding; Ministry of Agriculture; College of Fisheries; Huazhong Agricultural University; Wuhan China
| | - K.-J. Wei
- Key Laboratory of Freshwater Animal Breeding; Ministry of Agriculture; College of Fisheries; Huazhong Agricultural University; Wuhan China
| | - G.-W. Zou
- Key Laboratory of Freshwater Biodiversity Conservation; Ministry of Agriculture; Yangtze River Fisheries Research Institute; Chinese Academy of Fishery Sciences; Wuhan China
| | - W.-M. Wang
- Key Laboratory of Freshwater Animal Breeding; Ministry of Agriculture; College of Fisheries; Huazhong Agricultural University; Wuhan China
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Feng K, Qiu H, Gao Y, Fu Y, Du L, Qiu T, Meng H, Luo Q. Comparative proteomic analysis of the nucleus accumbens during extinction and reinstatement of morphine dependence. W INDIAN MED J 2013; 62:210-215. [PMID: 24564042] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
BACKGROUND The aim of this study was to detect differentially expressed proteins in the nucleus accumbens between the states of extinction and reinstatement ofmorphine addiction. Numerous studies on the neurobiological mechanisms concerning drug craving and relapse have been reported to date, but data on their relationship with the underlying key molecular mechanisms involved remain limited. METHODS In this study, 40 male Sprague-Dawley rats were equally randomized into a saline group and a morphine group. Both groups received drug self-administration training, after which extinction models were established naturally. The groups were further divided into two subgroups for extinction and reinstatement tests. Cerebral nucleus accumbens masses were measured for total protein extraction. Two-dimensional electrophoresis was performed to determine differential protein spots. These differential proteins were then enzymolysed and identified using mass spectrography. RESULTS The proteins were classified as fatty acid-binding protein, serine/threonine protein phosphatase 2A catalytic subunit beta isoform, serine/threonine protein phosphatase 2A catalytic subunit alpha isoform, serine/threonine protein phosphatase 2A regulatory subunit B2 subunit gamma or heat shock protein 90 co-chaperone CDC37. CONCLUSION Significant changes in five proteins were detected between extinction and reinstatement. These proteins are correlated with phosphorylation and the tricarboxylic acid cycle.
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Affiliation(s)
- K Feng
- Department of Mental Health, the First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - H Qiu
- Department of Mental Health, the First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - Y Gao
- Second Department, the Third Hospital of Zhongshan City, Zhongshan 510630, China
| | - Y Fu
- Department of Mental Health, the First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - L Du
- Department of Mental Health, the First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - T Qiu
- Department of Mental Health, the First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - H Meng
- Department of Mental Health, the First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - Q Luo
- Department of Mental Health, the First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
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Qiuhang Z, Feng K, Chuan G, Li L, Chen G, Liang J, Li M, Ling F. Endoscopic Transoral Approach for Jugular Foramen Schwannoma. Skull Base Surg 2012. [DOI: 10.1055/s-0032-1314297] [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: 10/28/2022]
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