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Wu W, Wang Y, Luo L, Wang M, Li Z, Chen Y, Wang Z, Chai J, Cen Z, Shi Y, Zhao J, Zeng J, Li H. CO2 Hydrogenation over Copper/ZnO Single‐Atom Catalysts: Water‐Promoted Transient Synthesis of Methanol. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202213024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Wenlong Wu
- USTC: University of Science and Technology of China Hefei National Research Center for Physical Sciences at the Microscale CHINA
| | - Yanan Wang
- Chinese Academy of Sciences Beijing National Laboratory for Condensed Matter Physics and Institute of Physics CHINA
| | - Lei Luo
- USTC: University of Science and Technology of China Hefei National Research Center for Physical Sciences at the Microscale CHINA
| | - Menglin Wang
- USTC: University of Science and Technology of China Hefei National Research Center for Physical Sciences at the Microscale CHINA
| | - Zhongling Li
- USTC: University of Science and Technology of China Hefei National Research Center for Physical Sciences at the Microscale CHINA
| | - Yue Chen
- USTC: University of Science and Technology of China Hefei National Research Center for Physical Sciences at the Microscale CHINA
| | - Zhiqi Wang
- USTC: University of Science and Technology of China Hefei National Research Center for Physical Sciences at the Microscale CHINA
| | - Jingbo Chai
- USTC: University of Science and Technology of China Hefei National Research Center for Physical Sciences at the Microscale CHINA
| | - Zeyan Cen
- USTC: University of Science and Technology of China Hefei National Research Center for Physical Sciences at the Microscale CHINA
| | - Yongliang Shi
- Xi'an Jiaotong University School of Materials Science and Engineering CHINA
| | - Jin Zhao
- USTC: University of Science and Technology of China Department of Physics CHINA
| | - Jie Zeng
- University of Science and Technology of China Hefei National Laboratory for Physical Sciences at the Microscale Hefei National Laboratory for Physical Sciences at the Microscale 96 Jinzhai Road 230026 Hefei CHINA
| | - Hongliang Li
- University of Science and Technology of China Hefei National Research Center for Physical Sciences at the Microscale 96 Jinzhai Road, Hefei, Anhui 230026 Hefei CHINA
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202
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Wu W, Wang Y, Luo L, Wang M, Li Z, Chen Y, Wang Z, Chai J, Cen Z, Shi Y, Zhao J, Zeng J, Li H. CO2 Hydrogenation over Copper/ZnO Single‐Atom Catalysts: Water‐Promoted Transient Synthesis of Methanol. Angew Chem Int Ed Engl 2022; 61:e202213024. [DOI: 10.1002/anie.202213024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2022] [Indexed: 11/09/2022]
Affiliation(s)
- Wenlong Wu
- USTC: University of Science and Technology of China Hefei National Research Center for Physical Sciences at the Microscale CHINA
| | - Yanan Wang
- Chinese Academy of Sciences Beijing National Laboratory for Condensed Matter Physics and Institute of Physics CHINA
| | - Lei Luo
- USTC: University of Science and Technology of China Hefei National Research Center for Physical Sciences at the Microscale CHINA
| | - Menglin Wang
- USTC: University of Science and Technology of China Hefei National Research Center for Physical Sciences at the Microscale CHINA
| | - Zhongling Li
- USTC: University of Science and Technology of China Hefei National Research Center for Physical Sciences at the Microscale CHINA
| | - Yue Chen
- USTC: University of Science and Technology of China Hefei National Research Center for Physical Sciences at the Microscale CHINA
| | - Zhiqi Wang
- USTC: University of Science and Technology of China Hefei National Research Center for Physical Sciences at the Microscale CHINA
| | - Jingbo Chai
- USTC: University of Science and Technology of China Hefei National Research Center for Physical Sciences at the Microscale CHINA
| | - Zeyan Cen
- USTC: University of Science and Technology of China Hefei National Research Center for Physical Sciences at the Microscale CHINA
| | - Yongliang Shi
- Xi'an Jiaotong University School of Materials Science and Engineering CHINA
| | - Jin Zhao
- USTC: University of Science and Technology of China Department of Physics CHINA
| | - Jie Zeng
- University of Science and Technology of China Hefei National Laboratory for Physical Sciences at the Microscale Hefei National Laboratory for Physical Sciences at the Microscale 96 Jinzhai Road 230026 Hefei CHINA
| | - Hongliang Li
- University of Science and Technology of China Hefei National Research Center for Physical Sciences at the Microscale 96 Jinzhai Road, Hefei, Anhui 230026 Hefei CHINA
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203
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Jin L, Liu Z, Zeng J, Zhao H, Zhang J, Zhu B, Zhang Y, Zhang T, Zhang C. A simple method for rapid screening and diagnosis of common organic acidemias: quantitative detection of serum and urine organic acid profiles based on liquid chromatography-tandem mass spectrometry. Anal Bioanal Chem 2022; 414:7823-7837. [PMID: 36169674 DOI: 10.1007/s00216-022-04316-9] [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: 07/22/2022] [Accepted: 09/01/2022] [Indexed: 11/01/2022]
Abstract
Organic acid (OA) analysis is a specific test for inherited metabolic disorders (IMDs); however, the previous detection methods are laborious and costly. This study aims to develop a rapid method for the simultaneous quantification of serum and urine OA profiles. The method was established based on the liquid chromatography-tandem mass spectrometry (LC-MS/MS) technique. The specificity, sensitivity, robustness, and accuracy of the established method were validated. Fifteen healthy subjects and nine IMD patients were measured for clinical validation. OAs with their intrinsic isomers were completely separated. The LC-MS/MS analysis time was 5.5 min. Calibration curves were linear within the ranges of 27.00 μg/g for all OAs. The average correlation relationship (R) varied from 0.9891 to 0.9998. The limit of detection and limit of quantification varied from 0.003 to 0.07 μg/g and 0.006 to 0.08 μg/g, respectively. No obvious carryover was observed. The intra-assay, inter-assay, and total imprecisions were 1.22-4.14%, 0.90-5.20%, and 1.67-5.90%, respectively. The mean spiked recovery at the three levels varied from 94.31 to 106.68%. The matrix effects can be compensated for by internal standard correction. Nine IMD patients were identified. A robust LC-MS/MS method for the rapid determination of serum and urine OA profiles without derivatization or liquid-liquid extraction was developed and validated. The analysis of five common OAs can be completed in short minutes. This innovative LC-MS/MS method for OA profiles may present its potential in future rapid screening and diagnosis of IMDs.
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Affiliation(s)
- Lizi Jin
- National Center for Clinical Laboratories, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing Hospital/National Center of Gerontology, Beijing, 100730, People's Republic of China.,Chinese Academy of Medical Sciences and Peking Union Medical College, No. 1 Dahua Road, Beijing, 100730, People's Republic of China
| | - Zhenni Liu
- National Center for Clinical Laboratories, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing Hospital/National Center of Gerontology, Beijing, 100730, People's Republic of China.,Chinese Academy of Medical Sciences and Peking Union Medical College, No. 1 Dahua Road, Beijing, 100730, People's Republic of China
| | - Jie Zeng
- National Center for Clinical Laboratories, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing Hospital/National Center of Gerontology, Beijing, 100730, People's Republic of China.,Chinese Academy of Medical Sciences and Peking Union Medical College, No. 1 Dahua Road, Beijing, 100730, People's Republic of China
| | - Haijian Zhao
- National Center for Clinical Laboratories, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing Hospital/National Center of Gerontology, Beijing, 100730, People's Republic of China.,Chinese Academy of Medical Sciences and Peking Union Medical College, No. 1 Dahua Road, Beijing, 100730, People's Republic of China
| | - Jiangtao Zhang
- National Center for Clinical Laboratories, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing Hospital/National Center of Gerontology, Beijing, 100730, People's Republic of China.,Chinese Academy of Medical Sciences and Peking Union Medical College, No. 1 Dahua Road, Beijing, 100730, People's Republic of China
| | - Bo Zhu
- Inner Mongolian Maternity and Child Health Care Hospital, Inner Mongolia, People's Republic of China
| | - Yu Zhang
- Zhejiang Biosan Biochemical Technologies Co., Ltd, Zhejiang, People's Republic of China
| | - Tianjiao Zhang
- National Center for Clinical Laboratories, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing Hospital/National Center of Gerontology, Beijing, 100730, People's Republic of China. .,Chinese Academy of Medical Sciences and Peking Union Medical College, No. 1 Dahua Road, Beijing, 100730, People's Republic of China.
| | - Chuanbao Zhang
- National Center for Clinical Laboratories, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing Hospital/National Center of Gerontology, Beijing, 100730, People's Republic of China. .,Chinese Academy of Medical Sciences and Peking Union Medical College, No. 1 Dahua Road, Beijing, 100730, People's Republic of China.
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204
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Wang D, Xue J, Ding X, Wei J, Feng C, Wang R, Ma P, Wang S, Cao H, Wang J, Zuo M, Zhou S, Zhang Z, Zeng J, Bao J. Neighboring Cationic Vacancy Assisted Adsorption Optimization on Single-Atom Sites for Improved Oxygen Evolution. ACS Catal 2022. [DOI: 10.1021/acscatal.2c03476] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Dongdi Wang
- National Synchrotron Radiation Laboratory, iChEM (Collaborative Innovation Center of Chemistry for Energy Materials), University of Science and Technology of China, Hefei, Anhui 230029, People’s Republic of China
| | - Jiawei Xue
- National Synchrotron Radiation Laboratory, iChEM (Collaborative Innovation Center of Chemistry for Energy Materials), University of Science and Technology of China, Hefei, Anhui 230029, People’s Republic of China
| | - Xilan Ding
- National Synchrotron Radiation Laboratory, iChEM (Collaborative Innovation Center of Chemistry for Energy Materials), University of Science and Technology of China, Hefei, Anhui 230029, People’s Republic of China
| | - Jie Wei
- Hefei National Laboratory for Physical Sciences at the Microscale, Key Laboratory of Strongly-Coupled Quantum Matter Physics of Chinese Academy of Sciences, Key Laboratory of Surface and Interface Chemistry and Energy Catalysis of Anhui Higher Education Institutes, Department of Chemical Physics, University of Science and Technology of China, Hefei, Anhui 230026, People’s Republic of China
| | - Chen Feng
- Hefei National Laboratory for Physical Sciences at the Microscale, Key Laboratory of Strongly-Coupled Quantum Matter Physics of Chinese Academy of Sciences, Key Laboratory of Surface and Interface Chemistry and Energy Catalysis of Anhui Higher Education Institutes, Department of Chemical Physics, University of Science and Technology of China, Hefei, Anhui 230026, People’s Republic of China
| | - Ruyang Wang
- National Synchrotron Radiation Laboratory, iChEM (Collaborative Innovation Center of Chemistry for Energy Materials), University of Science and Technology of China, Hefei, Anhui 230029, People’s Republic of China
| | - Peiyu Ma
- National Synchrotron Radiation Laboratory, iChEM (Collaborative Innovation Center of Chemistry for Energy Materials), University of Science and Technology of China, Hefei, Anhui 230029, People’s Republic of China
| | - Sicong Wang
- National Synchrotron Radiation Laboratory, iChEM (Collaborative Innovation Center of Chemistry for Energy Materials), University of Science and Technology of China, Hefei, Anhui 230029, People’s Republic of China
| | - Heng Cao
- National Synchrotron Radiation Laboratory, iChEM (Collaborative Innovation Center of Chemistry for Energy Materials), University of Science and Technology of China, Hefei, Anhui 230029, People’s Republic of China
| | - Jingyan Wang
- National Synchrotron Radiation Laboratory, iChEM (Collaborative Innovation Center of Chemistry for Energy Materials), University of Science and Technology of China, Hefei, Anhui 230029, People’s Republic of China
| | - Ming Zuo
- Hefei National Laboratory for Physical Sciences at the Microscale, Key Laboratory of Strongly-Coupled Quantum Matter Physics of Chinese Academy of Sciences, Key Laboratory of Surface and Interface Chemistry and Energy Catalysis of Anhui Higher Education Institutes, Department of Chemical Physics, University of Science and Technology of China, Hefei, Anhui 230026, People’s Republic of China
| | - Shiming Zhou
- Hefei National Laboratory for Physical Sciences at the Microscale, Key Laboratory of Strongly-Coupled Quantum Matter Physics of Chinese Academy of Sciences, Key Laboratory of Surface and Interface Chemistry and Energy Catalysis of Anhui Higher Education Institutes, Department of Chemical Physics, University of Science and Technology of China, Hefei, Anhui 230026, People’s Republic of China
| | - Zhirong Zhang
- Hefei National Laboratory for Physical Sciences at the Microscale, Key Laboratory of Strongly-Coupled Quantum Matter Physics of Chinese Academy of Sciences, Key Laboratory of Surface and Interface Chemistry and Energy Catalysis of Anhui Higher Education Institutes, Department of Chemical Physics, University of Science and Technology of China, Hefei, Anhui 230026, People’s Republic of China
| | - Jie Zeng
- Hefei National Laboratory for Physical Sciences at the Microscale, Key Laboratory of Strongly-Coupled Quantum Matter Physics of Chinese Academy of Sciences, Key Laboratory of Surface and Interface Chemistry and Energy Catalysis of Anhui Higher Education Institutes, Department of Chemical Physics, University of Science and Technology of China, Hefei, Anhui 230026, People’s Republic of China
| | - Jun Bao
- National Synchrotron Radiation Laboratory, iChEM (Collaborative Innovation Center of Chemistry for Energy Materials), University of Science and Technology of China, Hefei, Anhui 230029, People’s Republic of China
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205
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Guan X, Lv T, Lin Z, Huang P, Zeng J. D2D-Assisted Multi-User Cooperative Partial Offloading in MEC Based on Deep Reinforcement Learning. Sensors (Basel) 2022; 22:7004. [PMID: 36146350 PMCID: PMC9502189 DOI: 10.3390/s22187004] [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] [Figures] [Subscribe] [Scholar Register] [Received: 08/11/2022] [Revised: 09/02/2022] [Accepted: 09/13/2022] [Indexed: 06/16/2023]
Abstract
Mobile edge computing (MEC) and device-to-device (D2D) communication can alleviate the resource constraints of mobile devices and reduce communication latency. In this paper, we construct a D2D-MEC framework and study the multi-user cooperative partial offloading and computing resource allocation. We maximize the number of devices under the maximum delay constraints of the application and the limited computing resources. In the considered system, each user can offload its tasks to an edge server and a nearby D2D device. We first formulate the optimization problem as an NP-hard problem and then decouple it into two subproblems. The convex optimization method is used to solve the first subproblem, and the second subproblem is defined as a Markov decision process (MDP). A deep reinforcement learning algorithm based on a deep Q network (DQN) is developed to maximize the amount of tasks that the system can compute. Extensive simulation results demonstrate the effectiveness and superiority of the proposed scheme.
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Affiliation(s)
- Xin Guan
- School of Information and Communication Engineering, Beijing University of Posts and Telecommunications (BUPT), Beijing 100876, China
| | - Tiejun Lv
- School of Information and Communication Engineering, Beijing University of Posts and Telecommunications (BUPT), Beijing 100876, China
| | - Zhipeng Lin
- Key Laboratory of Dynamic Cognitive System of Electromagnetic Spectrum Space, College of Electronic and Information Engineering, Nanjing University of Aeronautics and Astronautics (NUAA), Nanjing 211106, China
| | - Pingmu Huang
- School of Artificial Intelligence, Beijing University of Posts and Telecommunications (BUPT), Beijing 100876, China
| | - Jie Zeng
- School of Cyberspace Science and Technology, Beijing Institute of Technology, Beijing 100081, China
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206
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Chen W, Gu T, Zeng J. Urbanisation and ecosystem health in the Middle Reaches of the Yangtze River urban agglomerations, China: A U-curve relationship. J Environ Manage 2022; 318:115565. [PMID: 35763997 DOI: 10.1016/j.jenvman.2022.115565] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/04/2021] [Revised: 06/06/2022] [Accepted: 06/17/2022] [Indexed: 05/22/2023]
Abstract
Rapid urbanisation in global urban agglomerations has caused serious disturbances to the structure, function, and health state of ecosystems. Investigating the driving mechanisms behind the impact of urbanisation level (UL) on ecosystem health index (EHI) is important for constructing ecological civilisation and developing superior urban agglomerations in China. However, no in-depth studies exist on these mechanisms in various urban agglomerations, which makes formulation and implementation of effective ecosystem management and control policies difficult. In this study, we estimated UL and EHI based on multisource data, and a set of spatial regression models were then used to analyse the driving mechanisms at global and local scales in the Middle Reaches of the Yangtze River urban agglomeration (MRYRUA) in China between 1995 and 2015. Our results demonstrated that EHIs in the MRYRUA were 0.627, 0.613, and 0.610 in 1995, 2005, and 2015, respectively, with 2.71% decreases during the study period. The EHI in the surrounding mountainous regions was considerably higher than that in the plains. There was a significant spatial dependence between the UL and EHI. Low UL and high EHI, high UL and low EHI, and low UL and low EHI were the dominant relationship types in the MRYRUA (25.61%, 11.83%, and 11.27%, respectively). A 10% increase in UL resulted in 1.79%, 2.50%, and 2.99% decrease in EHI for each reference year in the spatial error model with lag dependence model. A U-shaped relationship was identified between UL and EHI in different urban agglomerations and cities of different administrative levels. Therefore, the results of this study can provide a scientific basis for the formulation of macro-control policies and locally specific control policies for ecosystem protection in the MRYRUA.
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Affiliation(s)
- Wanxu Chen
- Department of Geography, School of Geography and Information Engineering, China University of Geosciences, Wuhan, 430078, China; State Key Laboratory of Earth Surface Processes and Resource Ecology, Beijing Normal University, Beijing, 100875, China.
| | - Tianci Gu
- Department of Geography, School of Geography and Information Engineering, China University of Geosciences, Wuhan, 430078, China.
| | - Jie Zeng
- Department of Geography, School of Geography and Information Engineering, China University of Geosciences, Wuhan, 430078, China; State Key Laboratory of Earth Surface Processes and Resource Ecology, Beijing Normal University, Beijing, 100875, China.
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207
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Zeng ZM, Mo N, Zeng J, Ma FC, Jiang YF, Huang HS, Liao XW, Zhu GZ, Ma J, Peng T. Advances in postoperative adjuvant therapy for primary liver cancer. World J Gastrointest Oncol 2022; 14:1604-1621. [PMID: 36187393 PMCID: PMC9516643 DOI: 10.4251/wjgo.v14.i9.1604] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/29/2021] [Revised: 05/13/2022] [Accepted: 07/26/2022] [Indexed: 02/05/2023] Open
Abstract
Hepatocellular carcinoma (HCC) is a highly heterogeneous, invasive, and conventional chemotherapy-insensitive tumor with unique biological characteristics. The main methods for the radical treatment of HCC are surgical resection or liver transplantation. However, recurrence rates are as high as 50% and 70% at 3 and 5 years after liver resection, respectively, and even in Milan-eligible recipients, the recurrence rate is approximately 20% at 5 years after liver transplantation. Therefore, reducing the postoperative recurrence rate is key to improving the overall outcome of liver cancer. This review discusses the risk factors for recurrence in patients with HCC radical surgical resection and adjuvant treatment options that may reduce the risk of recurrence and improve overall survival, including local adjuvant therapy (e.g., transcatheter arterial chemoembolization), adjuvant systemic therapy (e.g., molecular targeted agents and immunotherapy), and other adjuvant therapies (e.g., antiviral and herbal therapy). Finally, potential research directions that may change the paradigm of adjuvant therapy for HCC are analyzed.
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Affiliation(s)
- Zhi-Ming Zeng
- Department of Medical Oncology, The First Affiliated Hospital of Guangxi Medical University, Nanning 530021, Guangxi Zhuang Autonomous Region, China
| | - Ning Mo
- Department of Medical Oncology, The First Affiliated Hospital of Guangxi Medical University, Nanning 530021, Guangxi Zhuang Autonomous Region, China
| | - Jie Zeng
- Department of Medical Oncology, The First Affiliated Hospital of Guangxi Medical University, Nanning 530021, Guangxi Zhuang Autonomous Region, China
| | - Fu-Chao Ma
- Department of Medical Oncology, The First Affiliated Hospital of Guangxi Medical University, Nanning 530021, Guangxi Zhuang Autonomous Region, China
| | - Yan-Feng Jiang
- Department of Medical Oncology, The First Affiliated Hospital of Guangxi Medical University, Nanning 530021, Guangxi Zhuang Autonomous Region, China
| | - Hua-Sheng Huang
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Guangxi Medical University, Nanning 530021, Guangxi Zhuang Autonomous Region, China
| | - Xi-Wen Liao
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Guangxi Medical University, Nanning 530021, Guangxi Zhuang Autonomous Region, China
| | - Guang-Zhi Zhu
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Guangxi Medical University, Nanning 530021, Guangxi Zhuang Autonomous Region, China
| | - Jie Ma
- Department of Medical Oncology, The First Affiliated Hospital of Guangxi Medical University, Nanning 530021, Guangxi Zhuang Autonomous Region, China
| | - Tao Peng
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Guangxi Medical University, Nanning 530021, Guangxi Zhuang Autonomous Region, China
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208
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Dai Y, Gao H, Zeng J, Liu Y. Aggregation properties and structure of chia seed gum and gluten protein mixtures after freezing storage. Int J Biol Macromol 2022; 221:1093-1102. [PMID: 36113588 DOI: 10.1016/j.ijbiomac.2022.09.067] [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: 06/16/2022] [Revised: 08/11/2022] [Accepted: 09/07/2022] [Indexed: 11/24/2022]
Abstract
Chia seed gum (CSG) plays an important role in the aggregation and structural properties of gluten protein. The experimental results showed that adding 1.0 % CSG increased the freezing rate and shortened the freezing time by 42.3 % compared with gluten without CSG. At the same time, CSG had no significant effect on the composition of the gluten subunit but could better control the change in binding water and delay the structural deterioration caused by the extension of time (30 d). The viscoelasticity of gluten was increased, but only with the addition of 0.2-0.6 % CSG. In addition, it increased the denaturation transition temperature (Tp) and the degradation temperature (Td) of gluten protein to reduce the occurrence of recrystallization and resist pyrolysis. During frozen storage, gluten can form fine ice crystals and inhibit the transformation of α-helices and β-turns to random coils and β-sheets, which is more conducive to long-term frozen storage.
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Affiliation(s)
- Yunfei Dai
- School of Food Science, Henan Institute of Science and Technology, Xinxiang 453003, China
| | - Haiyan Gao
- School of Food Science, Henan Institute of Science and Technology, Xinxiang 453003, China.
| | - Jie Zeng
- School of Food Science, Henan Institute of Science and Technology, Xinxiang 453003, China
| | - Yufen Liu
- School of Food Science, Henan Institute of Science and Technology, Xinxiang 453003, China
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209
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Zeng J, Zhang R, Ning Ma K, Han LL, Yan SW, Liu RD, Zhang X, Wang ZQ, Cui J. Characterization of a novel aminopeptidase P from Trichinella spiralis and its participation in the intrusion of intestinal epithelial cells. Exp Parasitol 2022; 242:108376. [PMID: 36089006 DOI: 10.1016/j.exppara.2022.108376] [Citation(s) in RCA: 4] [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: 08/03/2022] [Revised: 09/05/2022] [Accepted: 09/05/2022] [Indexed: 11/24/2022]
Abstract
Aminopeptidases P are metalloproteases belonging to the M24 peptidase family. It specifically hydrolyzes the N-terminus of polypeptides free of acidic amino acids, and plays an important role in the nutrition, metabolism and growth of parasites. The aim of this study was to characterize a novel Trichinella spiralis aminopeptidase P (TsAPP) and to investigate its functions in the invasion of T. spiralis. TsAPP contained two domains of creatinase (a creatinase N and creatinase N2) and a domain of peptidase M24C and APP. The complete TsAPP sequence was cloned and expressed in Escherichia coli BL21 cells. The recombinantly produced TsAPP was used to raise polyclonal antibodies that were subsequently used to detect the expression of the protein in the different life stages of T. spiralis. TsAPP was expressed in various T. spiralis stages. TsAPP was primarily localized in the cuticle, stichosome and intrauterine embryos of this nematode. rTsAPP has an enzymatic activity of a natural aminopeptidase P to hydrolyze the substrate H-Ala-Pro-OH. rTsAPP promoted the larval intrusion of intestinal epithelium cells (IECs). The results showed that TsAPP is involved in the T. spiralis intrusion of IECs and it might be a potential candidate vaccine target against Trichinella infection.
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Affiliation(s)
- Jie Zeng
- Department of Parasitology, Medical College, Zhengzhou University, Zhengzhou, 450052, PR China
| | - Ru Zhang
- Department of Parasitology, Medical College, Zhengzhou University, Zhengzhou, 450052, PR China
| | - Kai Ning Ma
- Department of Parasitology, Medical College, Zhengzhou University, Zhengzhou, 450052, PR China
| | - Lu Lu Han
- Department of Parasitology, Medical College, Zhengzhou University, Zhengzhou, 450052, PR China
| | - Shu Wei Yan
- Department of Parasitology, Medical College, Zhengzhou University, Zhengzhou, 450052, PR China
| | - Ruo Dan Liu
- Department of Parasitology, Medical College, Zhengzhou University, Zhengzhou, 450052, PR China
| | - Xi Zhang
- Department of Parasitology, Medical College, Zhengzhou University, Zhengzhou, 450052, PR China
| | - Zhong Quan Wang
- Department of Parasitology, Medical College, Zhengzhou University, Zhengzhou, 450052, PR China.
| | - Jing Cui
- Department of Parasitology, Medical College, Zhengzhou University, Zhengzhou, 450052, PR China.
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210
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Luo J, Lu J, Zeng J, Ma Y, Gong Q, Wang Z, Zhang X, Quan J. Single-cell RNA analysis of chemokine expression in heterogeneous CD14 + monocytes with lipopolysaccharide-induced bone resorption. Exp Cell Res 2022; 420:113343. [PMID: 36088998 DOI: 10.1016/j.yexcr.2022.113343] [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: 04/10/2022] [Revised: 08/31/2022] [Accepted: 09/04/2022] [Indexed: 11/27/2022]
Abstract
Lipopolysaccharide (LPS)-induced bone resorption has normally been found in inflammatory bone diseases, but the underlying mechanism is currently unclear. Since LPS binds to CD14 and activates Toll-like receptor 4 (TLR4) in monocytes, the present study focused on CD14+ monocytes and observed their responses after LPS treatment during the progression of local bone destruction. CD14+ monocytes were obtained from human peripheral blood mononuclear cells (PBMCs) by magnetic cell separation (MACS), and their classification was confirmed by fluorescence-activated cell sorting (FACS). Single-cell RNA sequencing (scRNA-seq) was further utilized to analyze their subpopulations, and the results showed that physiological CD14+ monocytes were heterogeneous and divided into 6 subsets, that could be easily agitated. After priming with a suitable concentration of LPS, heterogeneous CD14+ monocytes became pathological and expressed a large number of chemokines as a "cascade effect". Some of these chemokines have been validated in an animal model of mouse calvarial bone invasion. Taken together, our research has linked enhanced chemokine expression with stimulation of heterogeneous CD14+ monocytes, and indicated that inflammatory responses caused by microbiome infection are responsible for the recruitment and mobilization of CD14+ monocytes into bone resorption sites, which may explain the pathogenesis of LPS-associated bone diseases.
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Affiliation(s)
- Junpan Luo
- Guanghua School of Stomatology, Hospital of Stomatology, Sun Yat-sen University and Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, Guangdong, 510080, PR China
| | - Jiarui Lu
- Department of Stomatology, The Eighth Affiliated Hospital, Sun Yat-sen University, 3025 Shennan Middle Road, Shenzhen, Guangdong, 518033, PR China
| | - Jie Zeng
- Department of Obstetrics and Gynecology, Center for Reproductive Medicine, Guangdong Provincial Key Laboratory of Major Obstetric Diseases, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Yuanyuan Ma
- Guanghua School of Stomatology, Hospital of Stomatology, Sun Yat-sen University and Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, Guangdong, 510080, PR China
| | - Qimei Gong
- Guanghua School of Stomatology, Hospital of Stomatology, Sun Yat-sen University and Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, Guangdong, 510080, PR China
| | - Zhuyu Wang
- Guanghua School of Stomatology, Hospital of Stomatology, Sun Yat-sen University and Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, Guangdong, 510080, PR China
| | - Xiaolei Zhang
- Department of Stomatology, The Eighth Affiliated Hospital, Sun Yat-sen University, 3025 Shennan Middle Road, Shenzhen, Guangdong, 518033, PR China.
| | - Jingjing Quan
- Guanghua School of Stomatology, Hospital of Stomatology, Sun Yat-sen University and Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, Guangdong, 510080, PR China.
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Zhao N, Zeng J, Fan L, Wang J, Zhang C, Zou S, Zhang B, Li K, Yu C. Moderate sedation by total intravenous remimazolam-alfentanil vs. propofol-alfentanil for third molar extraction: A prospective randomized controlled trial. Front Med (Lausanne) 2022; 9:950564. [PMID: 36117971 PMCID: PMC9479102 DOI: 10.3389/fmed.2022.950564] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Accepted: 08/17/2022] [Indexed: 11/13/2022] Open
Abstract
BackgroundOral dental treatment cause anxiety, fear, and physical stress. This study aimed to investigate the efficacy and safety of moderate sedation by remimazolam with alfentanil vs. propofol with alfentanil in third molar extraction.MethodsThis single-center, randomized, single-blind clinical trial included 100 adults who underwent third molar ambulatory extraction. All patients had continuous infusion of Alfentanil 0.2 μg/kg/min. Group remimazolam with alfentanil (group RA) had an induction dose of 80 μg/kg and maintenance dosage of 5 μg/kg/min. In group propofol with alfentanil (PA group), propofol was infused at an initial concentration of 1.8 μg/mL under target controlled infusion (TCI) mode and a maintenance concentration of 1.5 μg/mL. The incidence rates of adverse effects were recorded and compared. Depth of sedation was assessed using the modified observer alertness/sedation assessment (MOAA/S) and entropy index. Recovery characteristics were recorded and complications observed for next 24 h.ResultsThe incident of adverse events 6 (12%) in the group RA was lower than the group PA 25 (50%) [Mean difference 0.136 (95%CI, 0.049–0.377); P < 0.05], with no serious adverse events during the sedation procedure. The incidence of injection pain in group RA was significantly lower than that in group PA [4 vs. 26%, mean difference 0.119 (95%CI, 0.025–0.558); P = 0.004]. Before starting local anesthesia, the mean arterial pressure, heart rate, and respiratory rate of the PA group were lower than those of the RA group. None of the patients required further treatments for a decreased heart rate, blood pressure, or low SpO2. The rate of moderate sedation success was 100% in both groups. The MOAA/S score was similar between the groups indicating that the depth of sedation was effective. Group RA had significantly shorter recovery and discharge times than those of group PA.ConclusionsRemimazolam with alfentanil is a safer and more effective alternative for ambulatory sedation and can reduce recovery and discharge time and the incidence of perioperative adverse events compare with propofol.Clinical trial registrationhttp://www.chictr.org.cn/index.aspx, identifier: ChiCTR2200058106.
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Affiliation(s)
- Nan Zhao
- Department of Anesthesiology, Stomatology Hospital Affiliated Chongqing Medical University, Chongqing, China
- Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing, China
- Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing, China
| | - Jie Zeng
- Department of Anesthesiology, Stomatology Hospital Affiliated Chongqing Medical University, Chongqing, China
- Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing, China
- Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing, China
| | - Lin Fan
- Department of Anesthesiology, Stomatology Hospital Affiliated Chongqing Medical University, Chongqing, China
- Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing, China
- Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing, China
| | - Jing Wang
- Department of Anesthesiology, Stomatology Hospital Affiliated Chongqing Medical University, Chongqing, China
- Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing, China
- Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing, China
| | - Chao Zhang
- Department of Anesthesiology, Stomatology Hospital Affiliated Chongqing Medical University, Chongqing, China
- Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing, China
- Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing, China
| | - SiHai Zou
- Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing, China
- Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing, China
- Department of Oral Surgery, Stomatology Hospital Affiliated Chongqing Medical University, Chongqing, China
| | - Bi Zhang
- Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing, China
- Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing, China
- Department of Oral Surgery, Stomatology Hospital Affiliated Chongqing Medical University, Chongqing, China
| | - Kai Li
- Department of Anesthesiology, Stomatology Hospital Affiliated Chongqing Medical University, Chongqing, China
- Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing, China
- Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing, China
| | - Cong Yu
- Department of Anesthesiology, Stomatology Hospital Affiliated Chongqing Medical University, Chongqing, China
- Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing, China
- Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing, China
- *Correspondence: Cong Yu
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Zeng J, Devarayapalli KC, Li C, Vattikuti SVP, Shim J. Pseudocapacitive features of freestanding nickel-zinc organometallic nanostructured arrays for high-energy density coin-cell asymmetric supercapacitors. Chem Asian J 2022; 17:e202200685. [PMID: 36052888 DOI: 10.1002/asia.202200685] [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: 07/01/2022] [Revised: 09/02/2022] [Indexed: 11/11/2022]
Abstract
Binder-free two-dimensional mesh-like structure of nickel-zinc metal-organic framework on in-situ-coated carbon cloth (Ni-Zn MOF/CC) and Ni-Zn MOF powder were developed via a solvo-hydrothermal reaction for electrochemical storage application. The electrochemical properties of these electrodes show that the electrodes self-assembled on carbon cloth substrates exhibit remarkably excellent performance. The Ni-Zn MOF/CC electrode exhibited a capacitance of 653.54 F/g at 1 A/g through a capacity retaining of 87.65 % after 10000 cycles. Furthermore, the Ni-Zn MOF//AC coin-cell asymmetric supercapacitor device (CASD) exhibited remarkable energy and power densities of 54.31 Wh/kg and 825 W/kg, respectively, with adequate capacitance retention up to 94.63% over 5000 cycles at 1.5 V. The CASD also exhibited a significant power density of 4950 W/kg at 19.67 W h/kg, which suggests that these in-situ developed MOF-based electrodes may discover application in energy storage devices.
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Affiliation(s)
- Jie Zeng
- Yeungnam University, School of Mechanical Engineering, KOREA, REPUBLIC OF
| | | | - Changping Li
- Hunan University of Science and Technology, college of Mechanical and electrical engineering, CHINA
| | - S V Prabhakar Vattikuti
- Yeungnam University, School of Mechanical Engineering, lab 512, 412427, Daegu, KOREA, REPUBLIC OF
| | - Jaesool Shim
- Yeungnam University, School of Mechanical Engineering, KOREA, REPUBLIC OF
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213
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Dai Y, Gao H, Zeng J, Liu Y, Qin Y, Wang M. Effect of subfreezing storage on the qualities of dough and bread containing pea protein. J Sci Food Agric 2022; 102:5378-5388. [PMID: 35318659 DOI: 10.1002/jsfa.11891] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/28/2021] [Revised: 03/18/2022] [Accepted: 03/23/2022] [Indexed: 06/14/2023]
Abstract
BACKGROUND In this paper, -6, -9 and -12 °C were selected as subfreezing temperatures of dough containing pea protein based on the results of low-field nuclear magnetic relaxation time. The effect of storage at subfreezing temperatures on dough properties was then investigated and compared with sample storage at -18 °C. RESULTS The pH value, springiness, resilience, cohesiveness of dough and sensory score of bread gradually decreased and the hardness and water loss rate of dough gradually increased with the extension of storage time. However, dough hardness, viscoelasticity and fermentation volume were maintained more effectively in subfreezing storage than in -18 °C storage. The subfreezing temperature could alleviate the damage of gluten network structure in frozen dough by ice crystals and was beneficial in maintaining the elasticity of gluten proteins. The network system of pea protein, gluten protein and starch granules in dough storage at -9 and -12 °C was more tightly connected and the microstructure was similar to that at -18 °C. There was no significant difference between the quality of bread made from the dough stored at subfreezing temperature and that stored at -18 °C for 1-6 weeks, and the preservation effect at -12 °C was closer to that at -18 °C. CONCLUSION Subfreezing storage can keep the stability of dough containing pea protein close to traditional frozen storage (-18 °C), which provides a new method for storage and transportation of frozen dough. © 2022 Society of Chemical Industry.
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Affiliation(s)
- Yunfei Dai
- School of Food Science, Henan Institute of Science and Technology, Xinxiang, China
| | - Haiyan Gao
- School of Food Science, Henan Institute of Science and Technology, Xinxiang, China
| | - Jie Zeng
- School of Food Science, Henan Institute of Science and Technology, Xinxiang, China
| | - Yufen Liu
- School of Food Science, Henan Institute of Science and Technology, Xinxiang, China
| | - Yueqi Qin
- School of Food Science, Henan Institute of Science and Technology, Xinxiang, China
| | - Mengyu Wang
- School of Food Science, Henan Institute of Science and Technology, Xinxiang, China
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214
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Zhang S, Han G, Zeng J, Malem F. Source tracing and chemical weathering implications of strontium in agricultural basin in Thailand during flood season: A combined hydrochemical approach and strontium isotope. Environ Res 2022; 212:113330. [PMID: 35452669 DOI: 10.1016/j.envres.2022.113330] [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] [Subscribe] [Scholar Register] [Received: 03/01/2022] [Revised: 04/10/2022] [Accepted: 04/14/2022] [Indexed: 06/14/2023]
Abstract
87Sr/86Sr of river water are of great significance in constraining oceanic strontium (Sr) record and terrestrial climate change due to the connection of continental weathering and the adjacent ocean. This work presents the geochemical characteristics of dissolved Sr and hydrochemistry, and estimates chemical weathering rate together with elemental Sr flux during the flood season of the Mun River, the largest tributary of Mekong River. Hydrochemistry analysis indicates the dominance of Cl- and HCO3- for major anions with the average of 34.6 and 43.0 mg/L, respectively, and Na+ and Ca2+ together dominated the cationic composition with the average of 22.9 and 10.5 mg/L, respectively. The ion concentrations during flood season were lower than that in dry season, implying tremendous river runoff due to extreme rainfall. The dissolved Sr ranges 6.1-237.5 μg/L with higher contents in the upper Mun. Sr contents in flood season are lower and less fluctuated than that in dry season, whereas the divergence between up and downstream becomes larger. 87Sr/86Sr ranges 0.7100-0.7597, slightly higher than global average. Elemental molar ratio analysis partly corroborates the inference from correlation analysis, but 87Sr/86Sr does not correlate with Na/Ca, indicating additional influence except for the weathering of evaporites and silicates. Comparing to regional wastewater and rainwater, the lower reaches exhibits superimposed impact of agricultural inputs on weathering to dissolved loads, especially in downstream with more tributary convergence. Extreme rainfall during flood season and extensive agricultural production activities may interfere in altering riverine solutes. Silicate weathering rate and CO2 consumption rate are calculated as well as the yearly 87Sr in excess to the Mekong River and finally to the Pacific Ocean with a Sr flux of 1.98 × 103 tons/year, indicating significant influence on seawater strontium isotope evolution in the long run. Together with tropical climate and high-intensity precipitation, the accelerated chemical weathering process seems inevitable. Therefore, the impact of agricultural interference in the pan-Mekong River basin needs more systematic and multi-angle research to provide a comprehensive insight on better watershed management under tropical climatic conditions.
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Affiliation(s)
- Shitong Zhang
- Institute of Earth Sciences, China University of Geosciences (Beijing), Beijing, 100083, China
| | - Guilin Han
- Institute of Earth Sciences, China University of Geosciences (Beijing), Beijing, 100083, China.
| | - Jie Zeng
- Institute of Earth Sciences, China University of Geosciences (Beijing), Beijing, 100083, China
| | - Fairda Malem
- Environmental Research and Training Center, Department of Environmental Quality Promotion, Ministry of Natural Resources and Environment, Klong Luang, 12120, Thailand
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215
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Ma Y, To D, Zeng J, Shoute LCT, Wu M, Babiuk S, Zhuo R, Charlton C, Kanji JN, Babiuk L, Chen J. Improving immunoassay detection accuracy of anti-SARS-CoV-2 antibodies through dual modality validation. Biosens Bioelectron X 2022; 11:100176. [PMID: 35692737 PMCID: PMC9167148 DOI: 10.1016/j.biosx.2022.100176] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/25/2022] [Revised: 05/16/2022] [Accepted: 05/29/2022] [Indexed: 06/15/2023]
Abstract
A novel test strategy is proposed with dual-modality detection techniques for COVID-19 antibody detection. The full-length S protein of SARS-CoV-2 was chemically immobilized on a glass surface to capture anti-SARS-CoV-2 IgG in patient serum and was detected through either Electrochemical Impedance Spectroscopy (EIS) or fluorescence imaging with labeled secondary antibodies. Gold nanoparticles conjugated with protein G were used as the probe and the bound GNP-G was detected through EIS measurements. Anti-human-IgG conjugated with the fluorescent tag Alexa Fluor 488 was used as the probe for fluorescence imaging. Clinical SARS-CoV-2 IgG positive serum and negative controls were used to validate both modalities. For fluorescence-based detection, a high sensitivity was noticed with a quantification range of 0.01-0.1 A.U.C. and a LOD of 0.004 A.U.C. This study demonstrates the possibility of utilizing different measurement techniques in conjunction for improved COVID-19 serology testing.
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Affiliation(s)
- Yuhao Ma
- Department of Electrical and Computer Engineering, University of Alberta, Edmonton, AB, T6G 2V4, Canada
| | - Daniel To
- Department of Electrical and Computer Engineering, University of Alberta, Edmonton, AB, T6G 2V4, Canada
| | - Jie Zeng
- Department of Electrical and Computer Engineering, University of Alberta, Edmonton, AB, T6G 2V4, Canada
| | - Lian C T Shoute
- Department of Electrical and Computer Engineering, University of Alberta, Edmonton, AB, T6G 2V4, Canada
| | - Meng Wu
- Department of Chemical and Materials Engineering, University of Alberta, Edmonton, AB, T6G 2R3, Canada
| | - Shawn Babiuk
- National Centre for Foreign Animal Disease, Canadian Food Inspection Agency, Winnipeg, MB, Canada
- Department of Immunology, University of Manitoba, Winnipeg, MB, Canada
| | - Ran Zhuo
- Public Health Laboratory, Alberta Precision Laboratories, Calgary, AB, Canada
| | - Carmen Charlton
- Department of Laboratory Medicine and Pathology, University of Alberta, Edmonton, AB, T6G 2B7, Canada
- Public Health Laboratory, Alberta Precision Laboratories, Calgary, AB, Canada
- Li Ka Shing Institute for Virology, University of Alberta, Edmonton, AB, Canada
| | - Jamil N Kanji
- Department of Laboratory Medicine and Pathology, University of Alberta, Edmonton, AB, T6G 2B7, Canada
- Public Health Laboratory, Alberta Precision Laboratories, Calgary, AB, Canada
- Division of Infectious Diseases, Department of Medicine, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
- Department of Pathology & Laboratory Medicine, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
| | - Lorne Babiuk
- Vaccine and Infectious Disease Organization, University of Alberta, Edmonton, AB, Canada
| | - Jie Chen
- Department of Electrical and Computer Engineering, University of Alberta, Edmonton, AB, T6G 2V4, Canada
- Department of Biomedical Engineering, University of Alberta, Edmonton, AB T6G 2V2, Canada
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216
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Song Z, Liu Y, Zhong Y, Guo Q, Zeng J, Geng Z. Efficient Electroreduction of Nitrate into Ammonia at Ultralow Concentrations Via an Enrichment Effect. Adv Mater 2022; 34:e2204306. [PMID: 35839314 DOI: 10.1002/adma.202204306] [Citation(s) in RCA: 25] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Revised: 07/13/2022] [Indexed: 06/15/2023]
Abstract
The electroreduction of nitrate (NO3 - ) pollutants to ammonia (NH3 ) offers an alternative approach for both wastewater treatment and NH3 synthesis. Numerous electrocatalysts have been reported for the electroreduction of NO3 - to NH3 , but most of them demonstrate poor performance at ultralow NO3 - concentrations. In this study, a Cu-based catalyst for electroreduction of NO3 - at ultralow concentrations is developed by encapsulating Cu nanoparticles in a porous carbon framework (Cu@C). At -0.3 V vs reversible hydrogen electrode (RHE), Cu@C achieves Faradaic efficiency for NH3 of 72.0% with 1 × 10-3 m NO3 - , which is 3.6 times higher than that of Cu nanoparticles. Notably, at -0.9 V vs RHE, the yield rate of NH3 for Cu@C is 469.5 µg h-1 cm-2 , which is the highest value reported for electrocatalysts with 1 × 10-3 m NO3 - . An investigation of the mechanism reveals that NO3 - can be concentrated owing to the enrichment effect of the porous carbon framework in Cu@C, thereby facilitating the mass transfer of NO3 - for efficient electroreduction into NH3 at ultralow concentrations.
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Affiliation(s)
- Zhimin Song
- Hefei National Research Center for Physical Sciences at the Microscale, Key Laboratory of Strongly-Coupled Quantum Matter Physics of Chinese Academy of Sciences, Key Laboratory of Surface and Interface Chemistry and Energy Catalysis of Anhui Higher Education Institutes, Department of Chemical Physics, University of Science and Technology of China, Hefei, Anhui, 230026, P. R. China
- Department of Chemistry, Southern University of Science and Technology, Shenzhen, Guangdong, 518055, P. R. China
| | - Yan Liu
- Hefei National Research Center for Physical Sciences at the Microscale, Key Laboratory of Strongly-Coupled Quantum Matter Physics of Chinese Academy of Sciences, Key Laboratory of Surface and Interface Chemistry and Energy Catalysis of Anhui Higher Education Institutes, Department of Chemical Physics, University of Science and Technology of China, Hefei, Anhui, 230026, P. R. China
| | - Yongzhi Zhong
- Hefei National Research Center for Physical Sciences at the Microscale, Key Laboratory of Strongly-Coupled Quantum Matter Physics of Chinese Academy of Sciences, Key Laboratory of Surface and Interface Chemistry and Energy Catalysis of Anhui Higher Education Institutes, Department of Chemical Physics, University of Science and Technology of China, Hefei, Anhui, 230026, P. R. China
| | - Qing Guo
- Department of Chemistry, Southern University of Science and Technology, Shenzhen, Guangdong, 518055, P. R. China
| | - Jie Zeng
- Hefei National Research Center for Physical Sciences at the Microscale, Key Laboratory of Strongly-Coupled Quantum Matter Physics of Chinese Academy of Sciences, Key Laboratory of Surface and Interface Chemistry and Energy Catalysis of Anhui Higher Education Institutes, Department of Chemical Physics, University of Science and Technology of China, Hefei, Anhui, 230026, P. R. China
| | - Zhigang Geng
- Hefei National Research Center for Physical Sciences at the Microscale, Key Laboratory of Strongly-Coupled Quantum Matter Physics of Chinese Academy of Sciences, Key Laboratory of Surface and Interface Chemistry and Energy Catalysis of Anhui Higher Education Institutes, Department of Chemical Physics, University of Science and Technology of China, Hefei, Anhui, 230026, P. R. China
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Zeng J, Peng J, Jiang H, Deng P, Li K, Long D, Wang K. Establishment of an early diagnosis model of colon cancerous bowel obstruction based on 1H NMR. PLoS One 2022; 17:e0266730. [PMID: 35972924 PMCID: PMC9380946 DOI: 10.1371/journal.pone.0266730] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2021] [Accepted: 03/28/2022] [Indexed: 11/23/2022] Open
Abstract
Objective To prospectively establish an early diagnosis model of acute colon cancerous bowel obstruction by applying nuclear magnetic resonance hydrogen spectroscopy(1H NMR) technology based metabolomics methods, combined with machine learning. Methods In this study, serum samples of 71 patients with acute bowel obstruction requiring emergency surgery who were admitted to the Emergency Department of Sichuan Provincial People’s Hospital from December 2018 to November 2020 were collected within 2 hours after admission, and NMR spectroscopy data was taken after pretreatment. After postoperative pathological confirmation, they were divided into colon cancerous bowel obstruction (CBO) group and adhesive bowel obstruction (ABO) control group. Used MestReNova software to extract the two sets of spectra bins, and used the MetaboAnalyst5.0 website to perform partial least square discrimination (PLS-DA), combining the human metabolome database (HMDB) and the Kyoto Encyclopedia of Genes and Genomes (KEGG) to find possible different Metabolites and related metabolic pathways. Results 22 patients were classified as CBO group and 30 were classified as ABO control group. Compared with ABO group, the level of Xanthurenic acid, 3-Hydroxyanthranilic acid, Gentisic acid, Salicyluric acid, Ferulic acid, Kynurenic acid, CDP, Mandelic acid, NADPH, FAD, Phenylpyruvate, Allyl isothiocyanate, and Vanillylmandelic acid increased in the CBO group; while the lecel of L-Tryptophan and Bilirubin decreased. There were significant differences between two groups in the tryptophan metabolism, tyrosine metabolism, glutathione metabolism, phenylalanine metabolism and synthesis pathways of phenylalanine, tyrosine and tryptophan (all P<0.05). Tryptophan metabolism pathway had the greatest impact (Impact = 0.19). The early diagnosis model of colon cancerous bowel was established based on the levels of six metabolites: Xanthurenic acid, 3-Hydroxyanthranilic acid, Gentisic acid, Salicylic acid, Ferulic acid and Kynurenic acid (R2 = 0.995, Q2 = 0.931, RMSE = 0.239, AUC = 0.962). Conclusion This study firstly used serum to determine the difference in metabolome between patients with colon cancerous bowel obstruction and those with adhesive bowel obstruction. The study found that the metabolic information carried by the serum was sufficient to discriminate the two groups of patients and provided the theoretical supporting for the future using of the more convenient sample for the differential diagnosis of patients with colon cancerous bowel obstruction. Quantitative experiments on a large number of samples were still needed in the future.
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Affiliation(s)
- Jie Zeng
- Department of Emergency Surgery, Sichuan Academy of Medical Sciences & Sichuan Provincial People’s Hospital, Chengdu, Sichuan, P.R. China
| | - Jin Peng
- Department of Histology Embryology and Neurobiology, Sichuan University West China School of Basic Medical Sciences and Forensic Medicine, Chengdu, Sichuan, P.R. China
- * E-mail:
| | - Hua Jiang
- Department of Emergency Surgery, Sichuan Academy of Medical Sciences & Sichuan Provincial People’s Hospital, Chengdu, Sichuan, P.R. China
| | - Pengchi Deng
- Analytical and Testing Center, Sichuan University, Chengdu, Sichuan, P.R. China
| | - Kexun Li
- Department of Emergency Surgery, Sichuan Academy of Medical Sciences & Sichuan Provincial People’s Hospital, Chengdu, Sichuan, P.R. China
| | - Daolin Long
- Department of Emergency Surgery, Sichuan Academy of Medical Sciences & Sichuan Provincial People’s Hospital, Chengdu, Sichuan, P.R. China
| | - Kai Wang
- Department of Emergency Surgery, Sichuan Academy of Medical Sciences & Sichuan Provincial People’s Hospital, Chengdu, Sichuan, P.R. China
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218
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Gao H, Liu Y, Meng K, Zeng J. Study on Moisture Migration Mechanism of Dough during Subfreezing Storage. Cereal Chem 2022. [DOI: 10.1002/cche.10593] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Haiyan Gao
- School of Food Science, Henan Institute of Science and TechnologyXinxiangHenan453003China
| | - Yufen Liu
- School of Food Science, Henan Institute of Science and TechnologyXinxiangHenan453003China
| | - Kexin Meng
- College of Life Science, Fujian Agriculture and Forestry UniversityFuzhou350002China
| | - Jie Zeng
- School of Food Science, Henan Institute of Science and TechnologyXinxiangHenan453003China
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219
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Zeng J, Sun J, Song Y, Mei J, Lv T, Zhou S. Resource Allocation in Multi-Carrier Multiplexed NOMA Cooperative System. Sensors (Basel) 2022; 22:6023. [PMID: 36015784 PMCID: PMC9412613 DOI: 10.3390/s22166023] [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] [Figures] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Revised: 07/28/2022] [Accepted: 08/10/2022] [Indexed: 06/15/2023]
Abstract
Non-orthogonal multiple access (NOMA) cooperative communication technology can combine the advantages of NOMA and cooperative communication, providing high spectrum efficiency and increasing user coverage for next-generation wireless systems. However, the research on NOMA cooperative communication technology is still in a preliminary stage and has mainly concentrated on the scenario of fewer users. This paper focuses on a user-centered NOMA collaboration system in an ultra-dense network, and it constructs a resource allocation optimization problem to meet the demands of each user. Then, this paper decomposes the optimization problem into two subproblems; one is the grouping match among multiple relays and users, and the other is jointly allocating power and subcarrier resources. Accordingly, a dynamic packet matching algorithm based on Gale-Shapley and an iterative algorithm based on the difference of convex functions programing are proposed. Compared with existing schemes, the proposed algorithms can improve system throughput while ensuring the quality of service of users.
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Affiliation(s)
- Jie Zeng
- Beijing National Research Center for Information Science and Technology, Tsinghua University, Beijing 100084, China
- Department of Electronic Engineering, Tsinghua University, Beijing 100084, China
| | - Jiaying Sun
- State Key Laboratory of Wireless Mobile Communications, China Academy of Telecommunication Technology, Beijing 100084, China
| | - Yuxin Song
- School of Communication and Information Engineering, Chongqing University of Posts and Telecommunications, Chongqing 400065, China
| | - Jiajia Mei
- The National Key Laboratory of Science and Technology on Communications, University of Electronic Science and Technology of China, Chengdu 611731, China
| | - Tiejun Lv
- School of Information and Communication Engineering, Beijing University of Posts and Telecommunications, Beijing 100876, China
| | - Shidong Zhou
- Beijing National Research Center for Information Science and Technology, Tsinghua University, Beijing 100084, China
- Department of Electronic Engineering, Tsinghua University, Beijing 100084, China
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Yang Y, Yao M, Zeng J, Zheng D, Li Q, Ni Y, Xiao X. FYN regulates cell adhesion at the blood-testis barrier and the apical ectoplasmic specialization via its effect on Arp3 in the mouse testis. Front Immunol 2022; 13:915274. [PMID: 36016954 PMCID: PMC9396411 DOI: 10.3389/fimmu.2022.915274] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2022] [Accepted: 07/18/2022] [Indexed: 11/13/2022] Open
Abstract
FYN is a non-receptor tyrosine kinase of the SRC family that facilitates virus entry across epithelial tight junctions. However, the role of FYN in mammalian testes in maintaining the blood-testis barrier (BTB) integrity and the adhesion of germ cells to Sertoli cells are not well defined. Here, we show that FYN is a component of the BTB and the apical ectoplasmic specialization (ES) at Sertoli-Sertoli and Sertoli-spermatid interfaces, respectively, and is expressed extensively in mouse testes during postnatal development. FYN was shown to be structurally linked to the actin and microtubule-based cytoskeletons. An in vivo model was used to explore the modulatory effect of FYN on BTB and apical ES dynamics within the testes when adult mice were treated intraperitoneally with CdCl2 (3 mg/kg body weight). The CdCl2-induced epithelial restructuring was associated with a transient increase in the interaction between FYN and the actin branching/nucleation protein Arp3, as well as an induction of Arp3 phosphorylation, which possibly lead to actin cytoskeleton remodeling, resulting in BTB damage and germ cell loss in the seminiferous epithelium. Based on the results, we propose a model in which FYN and Arp3 form a protein complex that is responsible for junction reorganization events at the apical ES and the BTB. It is also possible for viruses to break through the BTB and enter the immunoprivileged testicular microenvironment via this mechanism.
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Affiliation(s)
- Yue Yang
- Center for Reproductive Health, School of Pharmaceutical Sciences, Hangzhou Medical College (Zhejiang Academy of Medical Sciences), Hangzhou, China
| | - Mingxia Yao
- Center for Reproductive Health, School of Pharmaceutical Sciences, Hangzhou Medical College (Zhejiang Academy of Medical Sciences), Hangzhou, China
| | - Jie Zeng
- Center for Reproductive Health, School of Pharmaceutical Sciences, Hangzhou Medical College (Zhejiang Academy of Medical Sciences), Hangzhou, China
| | - Dongwang Zheng
- Center for Reproductive Health, School of Pharmaceutical Sciences, Hangzhou Medical College (Zhejiang Academy of Medical Sciences), Hangzhou, China
| | - Qin Li
- School of Pharmaceutical Sciences, Hangzhou Medical College, Hangzhou, China
| | - Ya Ni
- Center for Reproductive Health, School of Pharmaceutical Sciences, Hangzhou Medical College (Zhejiang Academy of Medical Sciences), Hangzhou, China
| | - Xiang Xiao
- Center for Reproductive Health, School of Pharmaceutical Sciences, Hangzhou Medical College (Zhejiang Academy of Medical Sciences), Hangzhou, China
- Zhejiang Provincial Laboratory of Experimental Animal’s & Nonclinical Laboratory Studies, Hangzhou Medical College, Hangzhou, China
- *Correspondence: Xiang Xiao,
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Peng X, Peng Y, Zhang C, Zhao M, Yang H, Cao S, Li G, Jiang Y, Guo Z, Chen D, Xu J, Chen H, Xiang Y, Mu R, Zeng J, Shen Y, Wang Y, Li Q, Hu L, Ren N, Cai Y, Zhang W, Ma J, Yan R, Chen W, Song W, Ni X. Reference intervals of 14 biochemical markers for children and adolescence in China: the PRINCE study. Clin Chem Lab Med 2022; 60:1627-1639. [PMID: 35934870 DOI: 10.1515/cclm-2022-0299] [Citation(s) in RCA: 4] [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: 03/28/2022] [Accepted: 07/13/2022] [Indexed: 11/15/2022]
Abstract
OBJECTIVES The Pediatric Reference Intervals in China (PRINCE) was initiated to establish the reference intervals (RIs) of Chinese children, as well as to make it possible to compare the variability of biochemical markers among countries internationally. METHODS Healthy participants, aged up to 20 years, from 11 provinces across China, were enrolled in PRINCE and according to a standard screening procedure, that included a questionnaire survey, physical examinations and laboratory tests. Fasting venous blood specimens were collected. All serum specimens were analyzed with Cobas C702 in the center laboratory, i.e. clinical laboratory of Beijing Children's Hospital, with certified qualification (ISO15189). The nonparametric method recommended by Clinical Laboratory Standards Institute guidelines, was used to calculate the age- and sex-specified RIs. RESULTS Among the 15,150 participants enrolled, 12,352 children (6,093 males and 6,259 females) were included to calculate RIs. The RIs for total protein, albumin, globulin, calcium, phosphate, potassium, sodium, chlorine, alkaline phosphatase, γ-glutamyl transpeptadase, alanine aminotransferase, aspartate aminotransferase, creatinine and urea were established by age- or sex-partitions. Most biochemical markers displayed larger variability and higher dispersion during the periods between 28 days and 1 year old, and included 4-6 age partitions commonly during 1 to <20 years old. In addition, differences of RIs between sexes usually occurs around the initiation of puberty at 12-13 years old. CONCLUSIONS The age- and sex-specified RIs of 14 biochemical markers in PRINCE study can provide a solid reference, which will be transferred into relevant RIs for other clinical laboratory's platforms according to the CLSI guidelines.
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Affiliation(s)
- Xiaoxia Peng
- National Center for Children's Health, Beijing Children's Hospital, Capital Medical University, Beijing, P.R. China
| | - Yaguang Peng
- National Center for Children's Health, Beijing Children's Hospital, Capital Medical University, Beijing, P.R. China
| | - Chuanbao Zhang
- National Center for Clinical Laboratories (NCCL), Beijing, P.R. China
| | - Min Zhao
- The First Hospital of China Medical University, Shenyang, Liaoning, P.R. China
| | - Hongling Yang
- Guangzhou Women and Children's Medical Centre, Guangzhou Medical University, Guangzhou, Guangdong, P.R. China
| | - Sancheng Cao
- Xi'an Children's Hospital, Xi'An, Shaanxi, P.R. China
| | - Guixia Li
- Children's Hospital of Hebei Province, Shijiazhuang, Hebei, P.R. China
| | - Yongmei Jiang
- West China Second University Hospital, Sichuan University, Chengdu, Sichuan, P.R. China
| | - Zhenxin Guo
- Henan Children's Hospital Zhengzhou Children's Hospital, Zhengzhou, Henan, P.R. China
| | - Dapeng Chen
- Children's Hospital of Chongqing Medical University, Chongqing, P.R. China
| | - Jin Xu
- Children's Hospital of Fudan University, Shanghai, P.R. China
| | - Hongbing Chen
- Children's Hospital of Nanjing Medical University, Nanjing, Jiangsu, P.R. China
| | - Yun Xiang
- Wuhan Women and Children Medical Care Center, Wuhan, Hubei, P.R. China
| | - Runqing Mu
- The First Hospital of China Medical University, Shenyang, Liaoning, P.R. China
| | - Jie Zeng
- National Center for Clinical Laboratories (NCCL), Beijing, P.R. China
| | - Ying Shen
- National Center for Children's Health, Beijing Children's Hospital, Capital Medical University, Beijing, P.R. China
| | - Yan Wang
- National Center for Children's Health, Beijing Children's Hospital, Capital Medical University, Beijing, P.R. China
| | - Qiliang Li
- National Center for Children's Health, Beijing Children's Hospital, Capital Medical University, Beijing, P.R. China
| | - Lixin Hu
- National Center for Children's Health, Beijing Children's Hospital, Capital Medical University, Beijing, P.R. China
| | - Na Ren
- National Center for Children's Health, Beijing Children's Hospital, Capital Medical University, Beijing, P.R. China
| | - Yanying Cai
- National Center for Children's Health, Beijing Children's Hospital, Capital Medical University, Beijing, P.R. China
| | - Wei Zhang
- National Center for Children's Health, Beijing Children's Hospital, Capital Medical University, Beijing, P.R. China
| | - Jie Ma
- National Center for Children's Health, Beijing Children's Hospital, Capital Medical University, Beijing, P.R. China
| | - Ruohua Yan
- National Center for Children's Health, Beijing Children's Hospital, Capital Medical University, Beijing, P.R. China
| | - Wenxiang Chen
- National Center for Clinical Laboratories (NCCL), Beijing, P.R. China
| | - Wenqi Song
- National Center for Children's Health, Beijing Children's Hospital, Capital Medical University, Beijing, P.R. China
| | - Xin Ni
- National Center for Children's Health, Beijing Children's Hospital, Capital Medical University, Beijing, P.R. China
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Liang J, Zeng J, Huang X, Zhu T, Gong Y, Dong C, Wang X, Zhao L, Xie L, Liang K, Tan Q, Cui Y, Kong B, Hui W. Super-assembly of integrated gold magnetic assay with loop-mediated isothermal amplification for point-of-care testing. Nano Res 2022; 16:1242-1251. [PMID: 35966151 PMCID: PMC9362447 DOI: 10.1007/s12274-022-4692-9] [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] [Figures] [Subscribe] [Scholar Register] [Received: 05/25/2022] [Revised: 06/21/2022] [Accepted: 06/21/2022] [Indexed: 06/15/2023]
Abstract
UNLABELLED With the increasing global threat of various diseases and infections, it is essential to develop a fast, low-cost, and easy-to-use point-of-care testing (POCT) system for inspections at all levels of medical institutions and self-examination at home. In this work, gold magnetic nanoparticles (GMNPs) are used as the key material, and a rapid visual detection method is designed through integrating loop-mediated isothermal amplification (LAMP) and lateral flow assay (LFA) biosensor for detecting a variety of analytes which includes whole blood, buccal swabs, and DNA. It is worth to note that the proposed method does not need DNA extraction. Furthermore, uracil DNA glycosylase (UDG) is employed to eliminate carrier contamination for preventing false positive results. The whole detection process can be finished within 25 min. The accuracy of detection is measured by assessing the polymorphisms of the methylenetetrahydrofolate reductase (MTHFR) C677T. The detection limit of the newly developed extraction-free detection system for MTHFR C677T is 0.16 ng/μL. A preliminary clinical study of the proposed method is carried out by analyzing 600 clinical samples (including 200 whole blood samples, 100 buccal swabs, and 300 genomic DNA samples). The results indicate that the proposed method is 100% consistent with the sequencing results which provides a new choice for POCT and shows a broad application prospect in all levels of medical clinics and at home. ELECTRONIC SUPPLEMENTARY MATERIAL Supplementary material (details for MTHFR C677T primer sequences, the cell count results of samples at different dilution ratios, genotyping results and frequency samples, a Hardy-Weinberg equilibrium test, the sensitivity of the system, detection results of multiple samples, and optimization of the system) is available in the online version of this article at 10.1007/s12274-022-4692-9.
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Affiliation(s)
- Jianping Liang
- The College of life science, Northwest University, Xi’an, 710069 China
| | - Jie Zeng
- Department of Chemistry, Shanghai Key Lab of Molecular Catalysis and Innovative Materials, Collaborative Innovation Center of Chemistry for Energy Materials, Fudan University, Shanghai, 200438 China
| | - Xiaojuan Huang
- The College of life science, Northwest University, Xi’an, 710069 China
| | - Tengteng Zhu
- The College of life science, Northwest University, Xi’an, 710069 China
| | - Yonglong Gong
- The College of life science, Northwest University, Xi’an, 710069 China
| | - Chen Dong
- The College of life science, Northwest University, Xi’an, 710069 China
| | - Xiangrong Wang
- The College of life science, Northwest University, Xi’an, 710069 China
- Provincial Key Laboratory of Biotechnology of Shaanxi Province, Northwest University, Xi’an, 710069 China
| | - Lingzhi Zhao
- The College of life science, Northwest University, Xi’an, 710069 China
| | - Lei Xie
- Department of Chemistry, Shanghai Key Lab of Molecular Catalysis and Innovative Materials, Collaborative Innovation Center of Chemistry for Energy Materials, Fudan University, Shanghai, 200438 China
| | - Kang Liang
- School of Chemical Engineering, Graduate School of Biomedical Engineering, and Australian Centre for NanoMedicine, University of New South Wales, Sydney, NSW 2052 Australia
| | - Qiongxiang Tan
- The College of life science, Northwest University, Xi’an, 710069 China
| | - Yali Cui
- The College of life science, Northwest University, Xi’an, 710069 China
- Shaanxi Provincial Engineering Research Center for Nano-Biomedical Detection, Xi’an, 710077 China
| | - Biao Kong
- Department of Chemistry, Shanghai Key Lab of Molecular Catalysis and Innovative Materials, Collaborative Innovation Center of Chemistry for Energy Materials, Fudan University, Shanghai, 200438 China
| | - Wenli Hui
- The College of life science, Northwest University, Xi’an, 710069 China
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Northwest University, Xi’an, 710069 China
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Zhang XQ, Zheng RQ, Jin JY, Wang JF, Zhang T, Zeng J. US Shear-Wave Elastography Dispersion for Characterization of Chronic Liver Disease. Radiology 2022; 305:597-605. [PMID: 35916675 DOI: 10.1148/radiol.212609] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/07/2022]
Abstract
Background Little is known about the benefits of the use of dispersion slope (DS) as a viscosity-related parameter derived from two-dimensional (2D) shear-wave elastography (SWE) in the stratification of hepatic pathologic stages. Purpose To evaluate whether DS as an additional parameter can improve the diagnostic performance in detecting liver necroinflammation, fibrosis, and steatosis. Materials and Methods In this prospective study, consecutive participants with chronic liver disease who underwent liver biopsy and 2D SWE were recruited between July 2019 and September 2020. DS and liver stiffness (LS) measurements were obtained with use of a 2D SWE system immediately before biopsy. The biopsy specimens were assessed to obtain the scores of fibrosis, necroinflammation, and steatosis. Differences in the area under the receiver operating characteristic curve (AUC) were used to compare the diagnostic performance of DS, LS, and a combination of DS and LS. Results There were 159 participants evaluated (among them, 79 participants with chronic hepatitis B and 11 participants with nonalcoholic fatty liver disease). The distributions of DS values among various necroinflammatory activities (P = .02) and fibrosis stages (P < .001) were different. Moreover, DS was only associated with fibrosis after subgroup analysis based on the fibrosis stages and necroinflammatory activities (P < .001). The AUCs of DS in detecting clinically significant fibrosis (fibrosis stage ≥F2), cirrhosis (fibrosis stage of F4), and moderate to severe necroinflammatory activity (necroinflammatory activity ≥A2) were 0.72 (95% CI: 0.64, 0.79), 0.71 (95% CI: 0.63, 0.78), and 0.64 (95% CI: 0.55, 0.71), respectively. The differences of AUCs were not apparent for the DS and LS combination model after excluding DS (fibrosis stage ≥F2: 0.00 [95% CI: 0.00, 0.01], fibrosis stage of F4: -0.01 [95% CI: -0.02, 0.00], and necroinflammatory activity ≥A2: 0.00 [95% CI: 0.00, 0.01]). Conclusion The addition of dispersion slope derived from two-dimensional shear-wave elastography did not improve the diagnostic performance in detecting liver fibrosis, necroinflammation, or steatosis in patients with primarily viral hepatitis. ClinicalTrials.gov registration no.: NCT03777293 © RSNA, 2022 Online supplemental material is available for this article.
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Affiliation(s)
- Xiao-Qing Zhang
- From the Department of Medical Ultrasound, Guangdong Key Laboratory of Liver Disease Research, Third Affiliated Hospital of Sun Yat-Sen University, 600 Tianhe Rd, Guangzhou 510630, China
| | - Rong-Qin Zheng
- From the Department of Medical Ultrasound, Guangdong Key Laboratory of Liver Disease Research, Third Affiliated Hospital of Sun Yat-Sen University, 600 Tianhe Rd, Guangzhou 510630, China
| | - Jie-Yang Jin
- From the Department of Medical Ultrasound, Guangdong Key Laboratory of Liver Disease Research, Third Affiliated Hospital of Sun Yat-Sen University, 600 Tianhe Rd, Guangzhou 510630, China
| | - Jin-Fen Wang
- From the Department of Medical Ultrasound, Guangdong Key Laboratory of Liver Disease Research, Third Affiliated Hospital of Sun Yat-Sen University, 600 Tianhe Rd, Guangzhou 510630, China
| | - Ting Zhang
- From the Department of Medical Ultrasound, Guangdong Key Laboratory of Liver Disease Research, Third Affiliated Hospital of Sun Yat-Sen University, 600 Tianhe Rd, Guangzhou 510630, China
| | - Jie Zeng
- From the Department of Medical Ultrasound, Guangdong Key Laboratory of Liver Disease Research, Third Affiliated Hospital of Sun Yat-Sen University, 600 Tianhe Rd, Guangzhou 510630, China
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Zhang S, Han G, Zeng J, Liu M, Li X, Liu J. Multi-isotopes revealing the coastal river anthropogenic pollutants and natural material flux to ocean: Sr, C, N, S, and O isotope study. Environ Sci Pollut Res Int 2022; 29:61397-61411. [PMID: 35441999 DOI: 10.1007/s11356-022-20223-z] [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] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Accepted: 04/08/2022] [Indexed: 06/14/2023]
Abstract
Coastal river exports massive terrestrial materials to the adjacent marine environment with information about chemical weathering, providing critical insights on riverine flux and the potential impact on marine ecosystem. In this study, the preliminary data of dissolved strontium (Sr) and 87Sr/86Sr in a typical coastal river in southeastern China were collected along with hydrochemistry and C, N, S, and O isotopes to discriminate the source of terrestrial weathering and the riverine flux. Sr concentrations exhibited a range of 0.084 ~ 1.307 μmol L-1, and 87Sr/86Sr values ranged 0.7089 ~ 0.7164. The total cationic charge (TZ+) ranged 0.2 ~ 11.7 meq L-1 with the predominant Ca2+ which accounted for > 50% of TZ+, while the anions were dominated by HCO3-. The extremely high Na+ and Cl- near the estuary indicated seawater mixing in such a coastal river. δ13C-DIC, δ15N-NO3-, δ18O-NO3-, and δ34S-SO42- of river water ranged - 24.1‰ ~ - 9.2‰, 0.3‰ ~ 22.7‰, - 2.1‰ ~ 21.4‰, and - 9.3‰ ~ 18.0‰, respectively. δ13C enhanced correspondingly to decreased δ34S, confirming the attendance of H2SO4 in carbonate weathering. Most δ18O values exhibited within ± 10‰, indicating the dominant nitrification process. δ15N presented slightly negative relationship with δ13C and no obvious correlation with δ34S, indicating relatively limited impact of denitrification. The depleted δ13C and δ15N may be attributed to carbonate dissolution with nitric acids and the oxidation of organic matters into C and N pools. Quantitative analysis revealed that silicate weathering accounts for 79% of total dissolved Sr, indicating the dominant weathering process. The estimated monthly flux of dissolved Sr to the East China Sea was 138.1 tons, demonstrating an potential impact on seawater Sr isotope evolution. Overall, the investigations of multi-isotopes revealed the enhancement of weathering rates and the consequently depleted CO2 consumption, which further proved the involvement of strong acids (H2SO4 and HNO3). This study provides scientific insight in terrestrial weathering and anthropogenic impact of a typical coastal watershed and may orient the management of environmental issues related to coastal ecosystems.
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Affiliation(s)
- Shitong Zhang
- Institute of Earth Sciences, China University of Geosciences (Beijing), Beijing, 100083, China
| | - Guilin Han
- Institute of Earth Sciences, China University of Geosciences (Beijing), Beijing, 100083, China.
| | - Jie Zeng
- Institute of Earth Sciences, China University of Geosciences (Beijing), Beijing, 100083, China
| | - Man Liu
- Institute of Earth Sciences, China University of Geosciences (Beijing), Beijing, 100083, China
| | - Xiaoqiang Li
- Institute of Earth Sciences, China University of Geosciences (Beijing), Beijing, 100083, China
| | - Jinke Liu
- Institute of Earth Sciences, China University of Geosciences (Beijing), Beijing, 100083, China
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225
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Ni P, Zeng J, Chen H, Yang F, Yi X. Effect of different factors on treatment of oily wastewater by TiO 2/Al 2O 3-PVDF ultrafiltration membrane. Environ Technol 2022; 43:2981-2989. [PMID: 33797337 DOI: 10.1080/09593330.2021.1912832] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/01/2020] [Accepted: 03/25/2021] [Indexed: 06/12/2023]
Abstract
An ultrafiltration membrane developed by our research group was applied to treat simulated emulsified oil wastewater. ATR-FTIR, SEM, TEM, and Zeta potential analyzes demonstrated that the modified ultrafiltration membrane (MM) has excellent stability and anti-fouling capacity than origin membrane (OM), which possesses a pure water flux of 260 L·m-2·h-1 and oil/water (o/w) rejection of 98.5 ± 0.33%. Inorganic salt CaCl2 has more considerable influence than MgSO4 and NaCl under the same mass concentration in the two membranes UF process. Along with concentration increasing, flux sharply reduces; meanwhile, the rejection has an opposite trend. Moreover, permeation flux has a maximum value, and the rejection also gets its optimal state under neutral conditions during the pH value of 2-12. The membrane also exhibits excellent anti-fouling performance and anti- o/w adsorption properties with an adsorption rate below 0.8% compared with OM, which has an adsorption rate of nearly 2.1%, respectively. A kind of new UF membrane developed by our research group was applied to treat simulated o/w. ATR-FTIR, SEM, TEM, and Zeta potential analyzes demonstrated that PVDF-Al2O3/TiO2 material has excellent stability and anti-fouling capacity. CaCl2 has the greatest influence than MgSO4 and NaCl under the same mass concentration. Moreover, permeation flux has maximum value and the rejection also gets its optimal state under neutral conditions during pH 2-12. The membrane also exhibits excellent anti-fouling performance and anti-O/W adsorption properties with adsorption rate below 0.8% compared with OM which has an adsorption rate nearly 2.1%, respectively.
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Affiliation(s)
- Pengfei Ni
- School of Environmental Science and Engineering, Hainan University, Haikou, People's Republic of China
| | - Jie Zeng
- School of Environmental Science and Engineering, Hainan University, Haikou, People's Republic of China
| | - Honglin Chen
- School of Environmental Science and Engineering, Hainan University, Haikou, People's Republic of China
| | - Fei Yang
- School of Environmental Science and Engineering, Hainan University, Haikou, People's Republic of China
- Key Laboratory of Agro-Forestry Environmental Processes and Ecological Regulation of Hainan Province, Haikou, People's Republic of China
| | - Xuesong Yi
- School of Environmental Science and Engineering, Hainan University, Haikou, People's Republic of China
- Key Laboratory of Agro-Forestry Environmental Processes and Ecological Regulation of Hainan Province, Haikou, People's Republic of China
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226
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Liu Y, Wu Q, Jia H, Wang Z, Gao S, Zeng J. Anthropogenic rare earth elements in urban lakes: Their spatial distributions and tracing application. Chemosphere 2022; 300:134534. [PMID: 35398472 DOI: 10.1016/j.chemosphere.2022.134534] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2021] [Revised: 03/29/2022] [Accepted: 04/04/2022] [Indexed: 06/14/2023]
Abstract
Anthropogenic activities associated with various new technologies are increasingly disrupting the geochemical cycles of rare earth elements (REEs). For example, samarium (Sm) and gadolinium (Gd) have emerged as microcontaminants in the natural waters of developed areas. Surface water samples of 13 urban lakes were collected in Wuhan, the largest city in central China, with a population of over 11 million. The aim of this study was to examine to what extent REE anomalies occur and the relationship between the concentration of anthropogenic REEs in lakes and the surrounding environment. In this study, based on land-use type and point of interest (POIs) data, buffer extraction, density estimation and Spearman correlation analysis were first proposed to identify different sources of anthropogenic REEs, which mainly included hospitals, factories, population, urban land and cropland. The PAAS-normalized REE patterns indicate that all lake samples display pronounced positive Sm and Gd anomalies, ranging from 5.92 to 19.88 and 1.73 to 14.97, respectively. Spearman correlation analysis showed that hospital density was positively correlated with anthropogenic Gd concentration, and a positive relationship between proportion of cropland and the concentration of anthropogenic Sm. By utilizing Gdanth, Smanth, and the conventional ion ratio (NO3-/Cl-), a three-dimensional tracer system was established, and the system accurately obtained a characterization of the impact of WWTPs, hospitals, factories and agriculture on the lakes. Moreover, the results from this hydrochemical method were consistent with the analysis of geographic information systems, which indicated that this anthropogenic contaminant as a tracer was reliable for analysing the source of urban water pollution.
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Affiliation(s)
- Yongxue Liu
- The College of Resources and Environmental Engineering, Guizhou University, Guiyang, 550025, China
| | - Qixin Wu
- The College of Resources and Environmental Engineering, Guizhou University, Guiyang, 550025, China; Key Laboratory of Karst Georesources and Environment (Guizhou University), Ministry of Education, Guiyang, 550025, China.
| | - Huipeng Jia
- Key Laboratory of Karst Georesources and Environment (Guizhou University), Ministry of Education, Guiyang, 550025, China
| | - Zhuhong Wang
- School of Public Health, Key Laboratory of Environmental Pollution and Disease Monitoring of Ministry of Education, Guizhou Medical University, Guiyang, 550000, China
| | - Shilin Gao
- The College of Resources and Environmental Engineering, Guizhou University, Guiyang, 550025, China
| | - Jie Zeng
- Institute of Earth Sciences, China University of Geosciences (Beijing), Beijing, China
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Zeng J, Han J, Liu Z, Yu M, Li H, Yu J. Pentagalloylglucose disrupts the PALB2-BRCA2 interaction and potentiates tumor sensitivity to PARP inhibitor and radiotherapy. Cancer Lett 2022; 546:215851. [DOI: 10.1016/j.canlet.2022.215851] [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] [Received: 03/10/2022] [Revised: 07/08/2022] [Accepted: 07/27/2022] [Indexed: 11/16/2022]
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Zeng J, Lu C, Huang H, Huang J. Effect of Recombinant Netrin-1 Protein Combined with Peripheral Blood Mesenchymal Stem Cells on Angiogenesis in Rats with Arteriosclerosis Obliterans. Biomed Res Int 2022; 2022:3361605. [PMID: 35928912 PMCID: PMC9345694 DOI: 10.1155/2022/3361605] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/08/2022] [Revised: 06/30/2022] [Accepted: 07/02/2022] [Indexed: 01/06/2023]
Abstract
This work was aimed to explore the effect of recombinant netrin-1 protein and peripheral blood mesenchymal stem cells (MSCs) on the angiogenesis ability of atherosclerosis. 28 Sprague Dawley (SD) rats were taken as research models. The arterial occlusion models were created by surgery and then divided into the saline control group (n =7), netrin-1 treatment group (n =7), MSCs treatment group (n =7), and netrin-1 + MSCs combined treatment group (n =7). The peripheral blood MSCs were extracted from the peritoneal cavity of diseased SD rats and cultured alone or in combination with netrin-1. The individually cultured MSCs and netrin-1 were locally injected into the ischemic tissues of SD rats. The Tarlov scoring was performed at the first, second, and third week of treatment, respectively. The expression of vascular endothelial growth factor (VEGF) was also measured by quantitative real-time polymerase chain reaction (qRT-PCR), and the capillary density was measured by immunofluorescence staining. The mean maximum contractility of the gastrocnemius muscle in each group was determined in the third week after treatment. The Tarlov score of the netrin-1 + MSCs group was significantly higher than that of the control group (P < 0.05) at the second week. To the 4th week of treatment, the Tarlov score of the netrin-1 + MSCs group was highly increased compared to the netrin-1 group and the MSCs group (P < 0.05). The expression of VEGF in the treatment groups was greatly increased each week compared to the control group (P < 0.05). Compared with the netrin-1 and the MSCs groups, the VEGF was also notably increased in the netrin-1 + MSCs group (P <0.05). The capillary densities of the treatment groups were observably greater than that of the control group in the second and third weeks (P <0.05), while the capillary density in the netrin-1 + MSCs group was also significantly increased than those in the netrin-1 group and the MSCs group (P < 0.05). The mean maximum contractility of the netrin-1 + MSCs group was remarkably higher than that of the other groups (P < 0.05). The netrin-1 + MSCs group achieved the higher Tarlov score, higher VEGF expression, higher capillary density, and better muscle recovery than netrin-1 and MSCs treatments.
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Affiliation(s)
- Jie Zeng
- Department of Cardiology, Sichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital, Chengdu, 610072 Sichuan, China
| | - Cong Lu
- Department of Cardiology, Sichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital, Chengdu, 610072 Sichuan, China
| | - Hui Huang
- Department of Cardiology, Sichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital, Chengdu, 610072 Sichuan, China
| | - Jianxin Huang
- Department of Anesthesiology, Sichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital, Chengdu, 610072 Sichuan, China
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Zhang R, Mu H, Li Z, Zeng J, Zhou Q, Li H, Wang S, Li X, Zhao X, Sun L, Chen W, Dong J, Yang R. Oral administration of branched-chain amino acids ameliorates high-fat diet-induced metabolic-associated fatty liver disease via gut microbiota-associated mechanisms. Front Microbiol 2022; 13:920277. [PMID: 35935188 PMCID: PMC9354786 DOI: 10.3389/fmicb.2022.920277] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2022] [Accepted: 06/27/2022] [Indexed: 11/13/2022] Open
Abstract
Branched-chain amino acids (BCAAs), essential amino acids for the human body, are mainly obtained from food. High levels of BCAAs in circulation are considered as potential markers of metabolic-associated fatty liver disease (MAFLD) in humans. However, there are conflicting reports about the effects of supplement of BCAAs on MAFLD, and research on BCAAs and gut microbiota is not comprehensive. Here, C57BL/6J mice were fed with a high-fat diet with or without BCAAs to elucidate the effects of BCAAs on the gut microbiota and metabolic functions in a mouse model of MAFLD. Compared to high-fat diet (HFD) feeding, BCAA supplementation significantly reduced the mouse body weight, ratio of liver/body weight, hepatic lipid accumulation, serum levels of total cholesterol (TC), low-density lipoprotein cholesterol (LDL-C) and alanine aminotransferase (ALT), and the expressions of the lipogenesis-related enzymes Fas, Acc, and Scd-1 and increased expressions of the lipolysis-related enzymes Cpt1A and Atgl in the liver. BCAAs supplementation also counteracted HFD-induced elevations in serum BCAAs levels by stimulating the enzymatic activity of BCKDH. Furthermore, BCAAs supplementation markedly improved the gut bacterial diversity and altered the gut microbiota composition and abundances, especially those of genera, in association with MAFLD and BCAAs metabolism. These data suggest that BCAA treatment improves HFD-induced MAFLD through mechanisms involving intestinal microbes.
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Affiliation(s)
- Ranran Zhang
- The Key Laboratory of Geriatrics, Beijing Institute of Geriatrics, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing Hospital/National Center of Gerontology of National Health Commission, Beijing, China
- Institute of Geriatrics, Peking University Fifth School of Clinical Medicine, Beijing, China
| | - Hongna Mu
- The Key Laboratory of Geriatrics, Beijing Institute of Geriatrics, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing Hospital/National Center of Gerontology of National Health Commission, Beijing, China
| | - Ziyun Li
- The Key Laboratory of Geriatrics, Beijing Institute of Geriatrics, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing Hospital/National Center of Gerontology of National Health Commission, Beijing, China
| | - Jie Zeng
- National Center for Clinical Laboratories, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing Hospital/National Center of Gerontology, Beijing, China
| | - Qi Zhou
- The Key Laboratory of Geriatrics, Beijing Institute of Geriatrics, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing Hospital/National Center of Gerontology of National Health Commission, Beijing, China
| | - Hongxia Li
- The Key Laboratory of Geriatrics, Beijing Institute of Geriatrics, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing Hospital/National Center of Gerontology of National Health Commission, Beijing, China
| | - Siming Wang
- The Key Laboratory of Geriatrics, Beijing Institute of Geriatrics, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing Hospital/National Center of Gerontology of National Health Commission, Beijing, China
| | - Xianghui Li
- The Key Laboratory of Geriatrics, Beijing Institute of Geriatrics, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing Hospital/National Center of Gerontology of National Health Commission, Beijing, China
| | - Xianghui Zhao
- The Key Laboratory of Geriatrics, Beijing Institute of Geriatrics, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing Hospital/National Center of Gerontology of National Health Commission, Beijing, China
| | - Liang Sun
- The Key Laboratory of Geriatrics, Beijing Institute of Geriatrics, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing Hospital/National Center of Gerontology of National Health Commission, Beijing, China
| | - Wenxiang Chen
- The Key Laboratory of Geriatrics, Beijing Institute of Geriatrics, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing Hospital/National Center of Gerontology of National Health Commission, Beijing, China
- National Center for Clinical Laboratories, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing Hospital/National Center of Gerontology, Beijing, China
| | - Jun Dong
- The Key Laboratory of Geriatrics, Beijing Institute of Geriatrics, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing Hospital/National Center of Gerontology of National Health Commission, Beijing, China
| | - Ruiyue Yang
- The Key Laboratory of Geriatrics, Beijing Institute of Geriatrics, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing Hospital/National Center of Gerontology of National Health Commission, Beijing, China
- Institute of Geriatrics, Peking University Fifth School of Clinical Medicine, Beijing, China
- *Correspondence: Ruiyue Yang,
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Zhou W, Luo W, Yu S, Li H, Wang D, Zhang J, Wang S, Zeng J, Zhang C, Zhao H, Zheng H, Dong J, Chen W, Zhang C. Performance of HDL-C measurements assessed by a 4-year trueness-based EQA/PT program in China. Clin Chem Lab Med 2022; 60:1586-1597. [PMID: 35852107 DOI: 10.1515/cclm-2020-0658] [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] [Received: 05/06/2020] [Accepted: 07/01/2022] [Indexed: 11/15/2022]
Abstract
Abstract
Objectives
A trueness-based EQA/PT program for high density lipoprotein cholesterol (HDL-C) was initiated. We analyzed the 4 year EQA/PT program to overview the measurement standardization for HDL-C in China.
Methods
Two levels of freshly frozen, commutable serum external quality assessment/proficiency testing (EQA/PT) materials were prepared and determined by reference measurement procedure each year. The samples were delivered to clinical laboratories and measured 15 times in 3 days. The precision [coefficient of variation (CV)], trueness (bias), and accuracy [total error (TE)] were calculated and used to evaluate measurement performance. The pass rates of individual laboratories and peer groups were analyzed using the acceptable performance from the National Cholesterol Education Program (NCEP) and biological variation as the evaluation criteria.
Results
More than 60% of laboratories use heterogeneous systems, and there was a decrease in the percentage from 2016 to 2019. About 95, 78, and 33% of laboratories met the minimum, desirable and optimum TE criteria derived from biological variation. The pass rates were 87.0% (84.7–88.8%), 58.7% (55.3–62.4%), and 97.3% (95.6–98.3%) that met the acceptable performance of TE, bias, and CV of NCEP. The homogeneous systems had higher pass rates of TE, bias, and CV than the heterogeneous groups in 2016, but they did not show apparent advantages in 2017–2019.
Conclusions
The trueness-based EQA/PT program can be used to evaluate the accuracy, reproducibility, and trueness of results. For some IVD manufacturers and individual laboratories, accuracy, especially trueness, are still problems. Efforts should be made to improve the situation and achieve better HDL-C measurement standardization.
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Affiliation(s)
- Weiyan Zhou
- National Center for Clinical Laboratories, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing Hospital/National Center of Gerontology , Beijing , P.R. China
| | - Wenbo Luo
- Peking Union Medical College Hospital , Chinese Academy of Medical Sciences , Beijing , P.R. China
| | - Songlin Yu
- Peking Union Medical College Hospital , Chinese Academy of Medical Sciences , Beijing , P.R. China
| | - Hongxia Li
- The Key Laboratory of Geriatrics , Beijing Institute of Geriatrics , Beijing Hospital , National Center of Gerontology, Institute of Geriatric Medicine , Chinese Academy of Medical Sciences , Beijing , P.R. China
| | - Donghuan Wang
- National Center for Clinical Laboratories, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing Hospital/National Center of Gerontology , Beijing , P.R. China
| | - Jiangtao Zhang
- National Center for Clinical Laboratories, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing Hospital/National Center of Gerontology , Beijing , P.R. China
| | - Siming Wang
- The Key Laboratory of Geriatrics , Beijing Institute of Geriatrics , Beijing Hospital , National Center of Gerontology, Institute of Geriatric Medicine , Chinese Academy of Medical Sciences , Beijing , P.R. China
| | - Jie Zeng
- National Center for Clinical Laboratories, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing Hospital/National Center of Gerontology , Beijing , P.R. China
| | - Chao Zhang
- National Center for Clinical Laboratories, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing Hospital/National Center of Gerontology , Beijing , P.R. China
| | - Haijian Zhao
- National Center for Clinical Laboratories, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing Hospital/National Center of Gerontology , Beijing , P.R. China
| | - Hao Zheng
- National Center for Clinical Laboratories, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing Hospital/National Center of Gerontology , Beijing , P.R. China
| | - Jun Dong
- The Key Laboratory of Geriatrics , Beijing Institute of Geriatrics , Beijing Hospital , National Center of Gerontology, Institute of Geriatric Medicine , Chinese Academy of Medical Sciences , Beijing , P.R. China
| | - Wenxiang Chen
- National Center for Clinical Laboratories, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing Hospital/National Center of Gerontology , Beijing , P.R. China
| | - Chuanbao Zhang
- National Center for Clinical Laboratories, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing Hospital/National Center of Gerontology , Beijing , P.R. China
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231
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Huang X, Zeng J, Zhao N, Fan L, Ruan D, Wang J, Hong X, Yu C. Experience of using a smartphone WeChat applet for dental anxiety assessment and preoperative evaluation: A nationwide multicenter study. Front Public Health 2022; 10:900899. [PMID: 35923975 PMCID: PMC9342676 DOI: 10.3389/fpubh.2022.900899] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2022] [Accepted: 06/27/2022] [Indexed: 11/13/2022] Open
Abstract
IntroductionDental anxiety is a multivariate phenomenon that regularly occurs during a dental procedure. Although it may lead to patients' safety concerns and adverse events in routine treatment, it is often ignored. The purpose of this research is to develop a novel WeChat Applet for dental anxiety (WADA) with the following features and aims: (1) to help patients with dental anxiety management; (2) provide patient with a physical status self-evaluation; and(3) provide a platform for online assessment and tele-consultancy by dentists. We aimed to test and verify whether such an applet could play a beneficial role before and after a dental procedure and facilitate management of high-risk patients during the COVID-19 pandemic.Materials and methodsDuring the 12-month survey period (August 2020 to July 2021), a total of 180 patients aged 3–74 years from eight different cities (n = 180 at the end of treatment, n = 25 for the System Usability Scale (SUS) and follow-up interview) and 20 medical staff from eight different cities (n =20 for follow-up interview) were evaluated by WADA. At the end of the survey period, the results of the interviews were analyzed thematically.ResultsWADA assessment results from 180 patients and follow-up interview results from 45 participants were analyzed. In this study with a male to female ratio of 2:3, 75% were found to be suffering from dental anxiety, 86% were found with postoperative complications, and 11 cases were found to have contraindications to surgery. The total SUS score for WADA is 72.25 above the mean score, proving that WADA is a relevant and useful tool before and after dental treatment. Based on the results of the interviews, the following themes were identified: patient satisfaction; dentists' effectiveness; multi-center data integration; and increase its frequency of usage.ConclusionsThe WADA was developed for dental procedures and is effective for reducing treatment risks, improving patients' satisfaction and dentists' convenience, especially in terms of facilitating management of high-risk patient during the COVID-19 pandemic.
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Affiliation(s)
- Xilu Huang
- Department of Anesthesiology, Stomatological Hospital of Chongqing Medical University, Chongqing, China
- Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing, China
- Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing, China
| | - Jie Zeng
- Department of Anesthesiology, Stomatological Hospital of Chongqing Medical University, Chongqing, China
- Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing, China
- Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing, China
| | - Nan Zhao
- Department of Anesthesiology, Stomatological Hospital of Chongqing Medical University, Chongqing, China
- Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing, China
- Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing, China
| | - Lin Fan
- Department of Anesthesiology, Stomatological Hospital of Chongqing Medical University, Chongqing, China
- Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing, China
- Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing, China
| | - Dijiao Ruan
- Department of Anesthesiology, Stomatological Hospital of Chongqing Medical University, Chongqing, China
- Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing, China
- Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing, China
| | - Jing Wang
- Department of Anesthesiology, Stomatological Hospital of Chongqing Medical University, Chongqing, China
- Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing, China
- Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing, China
| | - Xiaomei Hong
- Engineering Research Center of Fujian University for Stomatological Biomaterials, Xiamen Medical College, Xiamen, China
| | - Cong Yu
- Department of Anesthesiology, Stomatological Hospital of Chongqing Medical University, Chongqing, China
- Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing, China
- Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing, China
- *Correspondence: Cong Yu
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Zeng J, Song Y, Wu T, Lv T, Zhou S. Guaranteeing QoS for NOMA-Enabled URLLC Based on κ–μ Shadowed Fading Model. Sensors 2022; 22:s22145279. [PMID: 35890956 PMCID: PMC9316060 DOI: 10.3390/s22145279] [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: 05/22/2022] [Revised: 06/30/2022] [Accepted: 07/03/2022] [Indexed: 01/25/2023]
Abstract
Sixth-generation (6G) wireless communication scenarios are complex and diverse. Small-scale fading is a key part of wireless channels and its impact on performance in scenarios with time sensitivity and 6G ultrareliable and low latency communications (URLLC) quality-of-service requirements cannot be ignored. Therefore, it is necessary to accurately characterize small-scale fading when designing wireless communication systems. In this paper, we derive approximate closed form expressions for the probability density function, cumulative distribution function and moment-generating function of the postprocessing signal-to-noise ratio following the zero-forcing detector in a cell-free massive multiple-input multiple-output (CF mMIMO) system. CF mMIMO system is a nonorthogonal multiple access (NOMA) system that enables users to share all channel uses and can ensure the fairness of the communication quality experienced by different users. Our key contributions include the extension of the κ–μ shadowed fading model to a CF mMIMO system and the proposal of theoretical tools (the derived closed-form expression) to improve its mathematical tractability. By exploiting the statistical characterizations of the arrival and service processes, another important contribution is the exploitation of the upper bound of the queuing delay violation probability (UB-QDVP) over the Mellin transforms of the arrival and service processes in the proposed CF mMIMO system under the κ–μ shadowed fading model. Corroborated by extensive simulations, our analyses validate that the CF mMIMO system outperforms the orthogonal multiple access and power-domain NOMA systems and reveal the relationships among different small-scale fading types, energy efficiency, delay and the UB-QDVP, as well as the accuracy and effectiveness of the proposed theoretical tools based on the κ–μ shadowed fading model.
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Affiliation(s)
- Jie Zeng
- School of Communication and Information Engineering, Chongqing University of Posts and Telecommunications, Chongqing 400065, China; (Y.S.); (T.W.)
- Beijing National Research Center for Information Science and Technology, Tsinghua University, Beijing 100084, China;
- Correspondence:
| | - Yuxin Song
- School of Communication and Information Engineering, Chongqing University of Posts and Telecommunications, Chongqing 400065, China; (Y.S.); (T.W.)
- Beijing National Research Center for Information Science and Technology, Tsinghua University, Beijing 100084, China;
| | - Teng Wu
- School of Communication and Information Engineering, Chongqing University of Posts and Telecommunications, Chongqing 400065, China; (Y.S.); (T.W.)
- Beijing National Research Center for Information Science and Technology, Tsinghua University, Beijing 100084, China;
| | - Tiejun Lv
- School of Information and Communication Engineering, Beijing University of Posts and Telecommunications, Beijing 100876, China;
| | - Shidong Zhou
- Beijing National Research Center for Information Science and Technology, Tsinghua University, Beijing 100084, China;
- Department of Electronic Engineering, Tsinghua University, Beijing 100084, China
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233
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Deng W, Zheng Z, Chen Y, Yang M, Yan J, Li W, Zeng J, Xie J, Gong S, Zeng H. Deficiency of GntR Family Regulator MSMEG_5174 Promotes Mycobacterium smegmatis Resistance to Aminoglycosides via Manipulating Purine Metabolism. Front Microbiol 2022; 13:919538. [PMID: 35898907 PMCID: PMC9309504 DOI: 10.3389/fmicb.2022.919538] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2022] [Accepted: 06/20/2022] [Indexed: 11/30/2022] Open
Abstract
The increasing incidence of drug-resistant tuberculosis is still an emergency for global public health and a major obstacle to tuberculosis treatment. Therefore, deciphering the novel mechanisms of mycobacterial antibiotic resistance is crucial for combatting the rapid emergence of drug-resistant strains. In this study, we identified an unexpected role of Mycobacterium smegmatis GntR family transcriptional regulator MSMEG_5174 and its homologous gene Mycobacterium tuberculosis Rv1152 in aminoglycoside antibiotic resistance. Deficiency of MSMEG_5174 rendered Mycobacterium smegmatis highly resistant to aminoglycoside antibiotic treatment, and ectopic expression of Rv1152 in MSMEG_5174 mutants restored antibiotic-induced bacterial killing. We further demonstrated that MSMEG_5174 negatively regulates the expression of purine metabolism-related genes and the accumulation of purine metabolites. Moreover, overexpression of xanthine dehydrogenase MSMEG_0871 or xanthine treatment elicited a significant decrease in aminoglycoside antibiotic lethality for Mycobacterium smegmatis. Together, our findings revealed MSMEG_5174 as a metabolic regulator and hint toward unexplored crosstalk between purine metabolism and antibiotic resistance.
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Affiliation(s)
- Wanyan Deng
- The Joint Center for Infection and Immunity, Guangzhou Institute of Pediatrics, Guangzhou Women and Children’s Medical Center, Guangzhou, China
- Institut Pasteur of Shanghai, Chinese Academy of Sciences, Shanghai, China
- Key Laboratory of Molecular Biology for Infectious Diseases (Ministry of Education), Department of Infectious Diseases, Institute for Viral Hepatitis, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
- *Correspondence: Wanyan Deng,
| | - Zengzhang Zheng
- The Joint Center for Infection and Immunity, Guangzhou Institute of Pediatrics, Guangzhou Women and Children’s Medical Center, Guangzhou, China
- Institut Pasteur of Shanghai, Chinese Academy of Sciences, Shanghai, China
| | - Yi Chen
- Key Laboratory of Molecular Biology for Infectious Diseases (Ministry of Education), Department of Infectious Diseases, Institute for Viral Hepatitis, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Maoyi Yang
- Key Laboratory of Molecular Biology for Infectious Diseases (Ministry of Education), Department of Infectious Diseases, Institute for Viral Hepatitis, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Jun Yan
- Key Laboratory of Molecular Biology for Infectious Diseases (Ministry of Education), Department of Infectious Diseases, Institute for Viral Hepatitis, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Wu Li
- The Joint Center for Infection and Immunity, Guangzhou Institute of Pediatrics, Guangzhou Women and Children’s Medical Center, Guangzhou, China
- Institut Pasteur of Shanghai, Chinese Academy of Sciences, Shanghai, China
| | - Jie Zeng
- Department of Respiratory Medicine, The First People’s Hospital of Yunnan Province, Kunming, China
- Affiliated Hospital of Kunming University of Science and Technology, Kunming, China
| | - Jianping Xie
- State Key Laboratory Breeding Base of Eco-Environment and Bio-Resource of the Three Gorges Area, Key Laboratory of Eco-Environments in Three Gorges Reservoir Region, Ministry of Education, School of Life Sciences, Institute of Modern Biopharmaceuticals, Southwest University, Chongqing, China
| | - Sitang Gong
- The Joint Center for Infection and Immunity, Guangzhou Institute of Pediatrics, Guangzhou Women and Children’s Medical Center, Guangzhou, China
- Institut Pasteur of Shanghai, Chinese Academy of Sciences, Shanghai, China
- Sitang Gong,
| | - Huasong Zeng
- The Joint Center for Infection and Immunity, Guangzhou Institute of Pediatrics, Guangzhou Women and Children’s Medical Center, Guangzhou, China
- Institut Pasteur of Shanghai, Chinese Academy of Sciences, Shanghai, China
- Huasong Zeng,
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234
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Hu D, Zeng J, Hu Y, Fei X, Xiao X, Feng M, Yu X. A survey on heavy metal concentrations in residential neighborhoods: The influence of secondary water supply systems. J Environ Sci (China) 2022; 117:37-45. [PMID: 35725087 DOI: 10.1016/j.jes.2021.12.032] [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: 10/04/2021] [Revised: 12/03/2021] [Accepted: 12/26/2021] [Indexed: 06/15/2023]
Abstract
Water quality deterioration often occurs in secondary water supply systems (SWSSs), and increased heavy metal concentrations can be a serious problem. In this survey, twelve residential neighborhoods were selected to investigate the influence of SWSSs on the seasonal changes in heavy metal concentrations from input water to tank and tap water. The concentrations of nine evaluated heavy metals in all groups of water samples were found to be far below the specified standard levels in China. The concentrations of Fe, Mn, and Zn increased significantly from the input water samples to the tank and tap water samples in spring and summer (p < 0.05), especially for the water samples that had been stagnant for a long time. Negative correlations were found between most of the heavy metals and residual chlorine (Fe, Cu, Zn, and As, r = -0.186 to -0.519, p < 0.05). In particular, a high negative correlation was observed between Fe and residual chlorine (r = -0.489 to -0.519, p < 0.01) in spring and summer. Fe and Mn displayed positive correlations with turbidity (r = 0.672 and 0.328, respectively; p < 0.05). In addition, Cr and As were found to be positively associated with some nutrients (NO3-, TN, and SO42-; r = 0.420-0.786, p < 0.01). The material of the storage tanks had little influence on the difference in heavy metal concentrations. Overall, this survey illustrated that SWSSs may pose a chronic threat to water quality and could provide useful information for practitioners.
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Affiliation(s)
- Dong Hu
- Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jie Zeng
- Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China
| | - Yue Hu
- Freshwater Fishery Research Institute of Jiangsu Province, Nanjing 210017, China
| | - Xiali Fei
- Xiamen Municipal Water Group. Ltd., Xiamen 361000, China
| | - Xinyan Xiao
- College of the Environment and Ecology, Xiamen University, Xiamen 361005, China
| | - Mingbao Feng
- College of the Environment and Ecology, Xiamen University, Xiamen 361005, China
| | - Xin Yu
- College of the Environment and Ecology, Xiamen University, Xiamen 361005, China.
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Devarayapalli KC, Zeng J, Lee DS, Vattikuti SVP, Shim J. In-situ Pt nanoparticles decorated BiOBr heterostructure for enhanced visible light-based photocatalytic activity: Synergistic effect. Chemosphere 2022; 298:134125. [PMID: 35231473 DOI: 10.1016/j.chemosphere.2022.134125] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/31/2021] [Revised: 02/18/2022] [Accepted: 02/24/2022] [Indexed: 06/14/2023]
Abstract
Advanced functional materials for photocatalytic hydrogen (H2) generation using abundant solar energy are the core of new and renewable energy research. In this paper, we report the in-situ deposition of platinum quantum-sized particles (Pt QDs) on bismuth oxybromide (BBr) 3D marigold flowers with exposed (101)/(110) facets (i.e. BBr-Pt) hierarchies prepared by a simple solvo-thermal method acting as a surfactant/structure stabilizer in the presence of CTAB. Synthesized samples were characterized by a series of analytical techniques. Intimate contact as demonstrated by HRTEM, effect of Pt loading in 3D-BiOBr nanostructure on photocatalytic H2 production and crystal violet (CV) dye degradation rate under white LED light irradiation was studied. This was greatly improved by loading Pt QDs on BBr, the latter showing the highest photocatalytic activity for BBr-2Pt nanostructure, due to the synergistic effect of quantum-sized Pt nanoparticles and exposed ((101) and (110) planes). The BBr-2Pt nanostructure photocatalysts showed highest H2 generation of 320.69 μmol g-1, which is 142 folds larger than bare BBr (2.26 μmol g-1).
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Affiliation(s)
| | - Jie Zeng
- School of Mechanical Engineering, Yeungnam University, Gyeongsan, 38541, Republic of Korea
| | - Dae Sung Lee
- Department of Environmental Engineering, Kyungpook National University, Daegu, 41566, South Korea.
| | | | - Jaesool Shim
- School of Mechanical Engineering, Yeungnam University, Gyeongsan, 38541, Republic of Korea.
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Zeng J, Duarte PA, Ma Y, Savchenko O, Shoute L, Khaniani Y, Babiuk S, Zhuo R, Abdelrasoul GN, Charlton C, Kanji JN, Babiuk L, Edward C, Chen J. An impedimetric biosensor for COVID-19 serology test and modification of sensor performance via dielectrophoresis force. Biosens Bioelectron 2022; 213:114476. [PMID: 35716642 PMCID: PMC9186431 DOI: 10.1016/j.bios.2022.114476] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [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: 02/16/2022] [Revised: 06/06/2022] [Accepted: 06/08/2022] [Indexed: 11/29/2022]
Abstract
Coronavirus disease 2019 (COVID-19) has caused significant global morbidity and mortality. The serology test that detects antibodies against the disease causative agent, the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), has often neglected value in supporting immunization policies and therapeutic decision-making. The ELISA-based antibody test is time-consuming and bulky. This work described a gold micro-interdigitated electrodes (IDE) biosensor for COVID antibody detection based on Electrochemical Impedance Spectroscopy (EIS) responses. The IDE architecture allows easy surface modification with the viral structure protein, Spike (S) protein, in the gap of the electrode digits to selectively capture anti-S antibodies in buffer solutions or human sera. Two strategies were employed to resolve the low sensitivity issue of non-faradic impedimetric sensors and the sensor fouling phenomenon when using the serum. One uses secondary antibody-gold nanoparticle (AuNP) conjugates to further distinguish anti-S antibodies from the non-specific binding and obtain a more significant impedance change. The second strategy consists of increasing the concentration of target antibodies in the gap of IDEs by inducing an AC electrokinetic effect such as dielectrophoresis (DEP). AuNP and DEP methods reached a limit of detection of 200 ng/mL and 2 μg/mL, respectively using purified antibodies in buffer, while the DEP method achieved a faster testing time of only 30 min. Both strategies could qualitatively distinguish COVID-19 antibody-positive and -negative sera. Our work, especially the impedimetric detection of COVID-19 antibodies under the assistance of the DEP force presents a promising path toward rapid, point-of-care solutions for COVID-19 serology tests.
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Affiliation(s)
- Jie Zeng
- Department of Electrical and Computer Engineering, University of Alberta, Edmonton, Canada
| | - Pedro A Duarte
- Department of Electrical and Computer Engineering, University of Alberta, Edmonton, Canada
| | - Yuhao Ma
- Department of Electrical and Computer Engineering, University of Alberta, Edmonton, Canada
| | - Oleksandra Savchenko
- Department of Electrical and Computer Engineering, University of Alberta, Edmonton, Canada
| | - Lian Shoute
- Department of Electrical and Computer Engineering, University of Alberta, Edmonton, Canada
| | - Yeganeh Khaniani
- Department of Biological Sciences, University of Alberta, Edmonton, Canada
| | - Shawn Babiuk
- Canadian Food Inspection Agency, National Centre for Foreign Animal Disease, Winnipeg, Canada
| | - Ran Zhuo
- Department of Laboratory Medicine and Pathology, University of Alberta, Edmonton, AB, T6G 2B7, Canada
| | - Gaser N Abdelrasoul
- Department of Electrical and Computer Engineering, University of Alberta, Edmonton, Canada
| | - Carmen Charlton
- Department of Laboratory Medicine and Pathology, University of Alberta, Edmonton, AB, T6G 2B7, Canada; Public Health Laboratory, Alberta Precision Laboratories, Calgary, AB, Canada; Li Ka Shing Institute for Virology, University of Alberta, Edmonton, AB, Canada
| | - Jamil N Kanji
- Department of Laboratory Medicine and Pathology, University of Alberta, Edmonton, AB, T6G 2B7, Canada; Public Health Laboratory, Alberta Precision Laboratories, Calgary, AB, Canada; Division of Infectious Diseases, Department of Medicine, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada; Department of Pathology & Laboratory Medicine, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
| | - Lorne Babiuk
- Vaccine and Infectious Disease Organization, University of Alberta, Edmonton, AB, Canada
| | - Cole Edward
- Public Health Laboratory, Alberta Precision Laboratories, Calgary, AB, Canada
| | - Jie Chen
- Department of Electrical and Computer Engineering, University of Alberta, Edmonton, Canada; Department of Biomedical Engineering, University of Alberta, Edmonton, Canada.
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Jin L, Lu Y, Yi X, Zhang M, Zhang J, Zhou W, Zeng J, Zhang T, Zhang C. Comparison of four different immunoassays and a rapid isotope-dilution liquid chromatography-tandem mass spectrometry assay for serum folate. Clin Chem Lab Med 2022; 60:1393-1402. [PMID: 35675883 DOI: 10.1515/cclm-2021-1283] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [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: 12/09/2021] [Accepted: 06/01/2022] [Indexed: 11/15/2022]
Abstract
OBJECTIVES Accurate measurement of serum folate is essential for the diagnosis and management of various disorders. This study aims to investigate the between-method differences of four immunoassays and a rapid isotope-dilution liquid chromatography-tandem mass spectrometry (ID-LC-MS/MS) method. METHODS Roche Cobas (USA), Abbott Alinity i2000 (USA), Beckman Coulter Access (USA), Mindray CL-6000i (China), and the ID-LC-MS/MS method were compared using 46 human serum samples. The results were analysed by Passing-Bablok regressions and Bland-Altman plots. A bias of 13.31% based on biological variation was used as the bias criterion. RESULTS All the within-run and total coefficients of variation (CVs) met the specification. The folate concentrations determined by all the assays were significantly different (p=0.0028). All assays had correlation coefficients over 0.97 with each other. The 95% confidence intervals (CIs) for the slope seldom contained 1 and few 95% CIs for the intercept contained 0 in the regression equations. Compared to ID-LC-MS/MS, the biases of all assays ranged from -20.91 to 13.56 nmol/L, and the mean relative biases ranged from -9.85 to 40.33%. The predicted mean relative biases at the medical decision levels rarely met the criterion. CONCLUSIONS Assays for serum folate had good correlations with each other but lacked good agreement. The accuracy and consistency of assays for serum folate should be measured and assessed routinely. Standardization work to improve the accuracy of serum folate assays, such as the extension of traceability to reference methods or materials, calibration standardization efforts, and assay-adjusted cut-offs should be promoted.
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Affiliation(s)
- Lizi Jin
- National Center for Clinical Laboratories, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing Hospital/National Center of Gerontology, Beijing, P. R. China.,Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, P. R. China
| | - Youli Lu
- Central Laboratory, Shanghai Xuhui Central Hospital/Zhongshan-Xuhui Hospital, Fudan University, Shanghai, China.,Shanghai Engineering Research Center of Phase I Clinical Research & Quality Consistency Evaluation for Drugs, Shanghai, China.,Shanghai Institute of Clinical Mass Spectrometry, Shanghai, China
| | - Xilian Yi
- National Center for Clinical Laboratories, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing Hospital/National Center of Gerontology, Beijing, P. R. China.,Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, P. R. China
| | - Meiwei Zhang
- Central Laboratory, Shanghai Xuhui Central Hospital/Zhongshan-Xuhui Hospital, Fudan University, Shanghai, China.,Shanghai Engineering Research Center of Phase I Clinical Research & Quality Consistency Evaluation for Drugs, Shanghai, China.,Shanghai Institute of Clinical Mass Spectrometry, Shanghai, China
| | - Jiangtao Zhang
- National Center for Clinical Laboratories, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing Hospital/National Center of Gerontology, Beijing, P. R. China.,Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, P. R. China
| | - Weiyan Zhou
- National Center for Clinical Laboratories, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing Hospital/National Center of Gerontology, Beijing, P. R. China.,Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, P. R. China
| | - Jie Zeng
- National Center for Clinical Laboratories, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing Hospital/National Center of Gerontology, Beijing, P. R. China.,Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, P. R. China
| | - Tianjiao Zhang
- National Center for Clinical Laboratories, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing Hospital/National Center of Gerontology, Beijing, P. R. China.,Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, P. R. China
| | - Chuanbao Zhang
- National Center for Clinical Laboratories, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing Hospital/National Center of Gerontology, Beijing, P. R. China.,Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, P. R. China
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Zeng J, Hong Y, Zhao N, Liu Q, Zhu W, Xiao L, Wang W, Chen M, Hong S, Wu L, Xue Y, Wang D, Niu J, Drlica K, Zhao X. A broadly applicable, stress-mediated bacterial death pathway regulated by the phosphotransferase system (PTS) and the cAMP-Crp cascade. Proc Natl Acad Sci U S A 2022; 119:e2118566119. [PMID: 35648826 PMCID: PMC9191683 DOI: 10.1073/pnas.2118566119] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [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: 10/09/2021] [Accepted: 04/22/2022] [Indexed: 12/30/2022] Open
Abstract
Recent work indicates that killing of bacteria by diverse antimicrobial classes can involve reactive oxygen species (ROS), as if a common, self-destructive response to antibiotics occurs. However, the ROS-bacterial death theory has been challenged. To better understand stress-mediated bacterial death, we enriched spontaneous antideath mutants of Escherichia coli that survive treatment by diverse bactericidal agents that include antibiotics, disinfectants, and environmental stressors, without a priori consideration of ROS. The mutants retained bacteriostatic susceptibility, thereby ruling out resistance. Surprisingly, pan-tolerance arose from carbohydrate metabolism deficiencies in ptsI (phosphotransferase) and cyaA (adenyl cyclase); these genes displayed the activity of upstream regulators of a widely shared, stress-mediated death pathway. The antideath effect was reversed by genetic complementation, exogenous cAMP, or a Crp variant that bypasses cAMP binding for activation. Downstream events comprised a metabolic shift from the TCA cycle to glycolysis and to the pentose phosphate pathway, suppression of stress-mediated ATP surges, and reduced accumulation of ROS. These observations reveal how upstream signals from diverse stress-mediated lesions stimulate shared, late-stage, ROS-mediated events. Cultures of these stable, pan-tolerant mutants grew normally and were therefore distinct from tolerance derived from growth defects described previously. Pan-tolerance raises the potential for unrestricted disinfectant use to contribute to antibiotic tolerance and resistance. It also weakens host defenses, because three agents (hypochlorite, hydrogen peroxide, and low pH) affected by pan-tolerance are used by the immune system to fight infections. Understanding and manipulating the PtsI-CyaA-Crp–mediated death process can help better control pathogens and maintain beneficial microbiota during antimicrobial treatment.
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Affiliation(s)
- Jie Zeng
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Public Health, Xiamen University, Xiamen 361102, China
| | - Yuzhi Hong
- Public Health Research Institute, New Jersey Medical School, Rutgers Biomedical and Health Sciences, Rutgers University, Newark, NJ 07103
- Department of Microbiology, Biochemistry & Molecular Genetics, New Jersey Medical School, Rutgers Biomedical and Health Sciences, Rutgers University, Newark, NJ 07103
- Institute of Molecular Enzymology and School of Biology & Basic Medical Sciences, Medical College, Soochow University, Suzhou 215123, China
| | - Ningqiu Zhao
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Public Health, Xiamen University, Xiamen 361102, China
| | - Qianyu Liu
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Public Health, Xiamen University, Xiamen 361102, China
- Center of Clinical Laboratory, Zhongshan Hospital, School of Medicine, Xiamen University, Xiamen 361004, China
| | - Weiwei Zhu
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Public Health, Xiamen University, Xiamen 361102, China
| | - Lisheng Xiao
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Public Health, Xiamen University, Xiamen 361102, China
| | - Weijie Wang
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Public Health, Xiamen University, Xiamen 361102, China
| | - Miaomiao Chen
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Public Health, Xiamen University, Xiamen 361102, China
| | - Shouqiang Hong
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Public Health, Xiamen University, Xiamen 361102, China
| | - Liwen Wu
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Public Health, Xiamen University, Xiamen 361102, China
| | - Yunxin Xue
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Public Health, Xiamen University, Xiamen 361102, China
| | - Dai Wang
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Public Health, Xiamen University, Xiamen 361102, China
| | - Jianjun Niu
- Center of Clinical Laboratory, Zhongshan Hospital, School of Medicine, Xiamen University, Xiamen 361004, China
| | - Karl Drlica
- Public Health Research Institute, New Jersey Medical School, Rutgers Biomedical and Health Sciences, Rutgers University, Newark, NJ 07103
- Department of Microbiology, Biochemistry & Molecular Genetics, New Jersey Medical School, Rutgers Biomedical and Health Sciences, Rutgers University, Newark, NJ 07103
| | - Xilin Zhao
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Public Health, Xiamen University, Xiamen 361102, China
- Public Health Research Institute, New Jersey Medical School, Rutgers Biomedical and Health Sciences, Rutgers University, Newark, NJ 07103
- Department of Microbiology, Biochemistry & Molecular Genetics, New Jersey Medical School, Rutgers Biomedical and Health Sciences, Rutgers University, Newark, NJ 07103
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239
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Zhao T, Zhao J, Tao X, Yu H, Li M, Zeng J, Wang H. Highly active and thermostable submonolayer La(NiCo)O Δ catalyst stabilized by a perovskite LaCrO 3 support. Commun Chem 2022; 5:70. [PMID: 36697603 PMCID: PMC9814614 DOI: 10.1038/s42004-022-00686-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2021] [Accepted: 05/13/2022] [Indexed: 01/28/2023] Open
Abstract
It is important to develop highly active and stable catalysts for high temperature reactions, such as dry reforming of methane. Here we show a La(NiCo)OΔ (LNCO) submonolayer catalyst (SMLC) stabilized by the surface lattice of a perovskite LaCrO3 support and demonstrate a Ni-Co synergistic effect. The submonolayer/support type catalyst was prepared by in-situ hydrogen reduction of a LaNi0.05Co0.05Cr0.9O3 precursor synthesized by a sol-gel method. The LNCO-SMLC is highly active and very stable during a 100 h on stream test at 750 °C under the reaction conditions of dry reforming of methane. The catalyst also shows good anti-coking ability. We found that the synergistic effect between Ni and Co atoms in LNCO-SMLC remarkably improved the thermostability of the catalyst. This work provides a useful concept for designing atomically dispersed catalysts with high thermostability.
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Affiliation(s)
- Tingting Zhao
- grid.59053.3a0000000121679639Hefei National Laboratory for Physical Science at the Microscale, University of Science and Technology of China, 230026 Hefei, Anhui People’s Republic of China
| | - Jiankang Zhao
- grid.59053.3a0000000121679639Hefei National Laboratory for Physical Science at the Microscale, University of Science and Technology of China, 230026 Hefei, Anhui People’s Republic of China
| | - Xuyingnan Tao
- grid.59053.3a0000000121679639Hefei National Laboratory for Physical Science at the Microscale, University of Science and Technology of China, 230026 Hefei, Anhui People’s Republic of China
| | - Haoran Yu
- grid.59053.3a0000000121679639Hefei National Laboratory for Physical Science at the Microscale, University of Science and Technology of China, 230026 Hefei, Anhui People’s Republic of China
| | - Ming Li
- grid.59053.3a0000000121679639Hefei National Laboratory for Physical Science at the Microscale, University of Science and Technology of China, 230026 Hefei, Anhui People’s Republic of China
| | - Jie Zeng
- grid.59053.3a0000000121679639Hefei National Laboratory for Physical Science at the Microscale, University of Science and Technology of China, 230026 Hefei, Anhui People’s Republic of China
| | - Haiqian Wang
- grid.59053.3a0000000121679639Hefei National Laboratory for Physical Science at the Microscale, University of Science and Technology of China, 230026 Hefei, Anhui People’s Republic of China
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Zeng J, He C, Guo J, Yuan L. Improvement of the Catalytic Activity of Thermoacidophilic Pullulan Hydrolase Type III by Error-Prone PCR Technology. APPL BIOCHEM MICRO+ 2022. [DOI: 10.1134/s0003683822030152] [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: 11/22/2022]
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241
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Zhao Z, Li M, Zeng J, Huo L, Liu K, Wei R, Ni K, Gao J. Recent advances in engineering iron oxide nanoparticles for effective magnetic resonance imaging. Bioact Mater 2022; 12:214-245. [PMID: 35310380 PMCID: PMC8897217 DOI: 10.1016/j.bioactmat.2021.10.014] [Citation(s) in RCA: 29] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2021] [Revised: 09/27/2021] [Accepted: 10/10/2021] [Indexed: 02/09/2023] Open
Abstract
Iron oxide nanoparticle (IONP) with unique magnetic property and high biocompatibility have been widely used as magnetic resonance imaging (MRI) contrast agent (CA) for long time. However, a review which comprehensively summarizes the recent development of IONP as traditional T2 CA and its new application for different modality of MRI, such as T1 imaging, simultaneous T2/T1 or MRI/other imaging modality, and as environment responsive CA is rare. This review starts with an investigation of direction on the development of high-performance MRI CA in both T2 and T1 modal based on quantum mechanical outer sphere and Solomon–Bloembergen–Morgan (SBM) theory. Recent rational attempts to increase the MRI contrast of IONP by adjusting the key parameters, including magnetization, size, effective radius, inhomogeneity of surrounding generated magnetic field, crystal phase, coordination number of water, electronic relaxation time, and surface modification are summarized. Besides the strategies to improve r2 or r1 values, strategies to increase the in vivo contrast efficiency of IONP have been reviewed from three different aspects, those are introducing second imaging modality to increase the imaging accuracy, endowing IONP with environment response capacity to elevate the signal difference between lesion and normal tissue, and optimizing the interface structure to improve the accumulation amount of IONP in lesion. This detailed review provides a deep understanding of recent researches on the development of high-performance IONP based MRI CAs. It is hoped to trigger deep thinking for design of next generation MRI CAs for early and accurate diagnosis. T2 contrast capacity of iron oxide nanoparticles (IONPs) could be improved based on quantum mechanical outer sphere theory. IONPs could be expand to be used as effective T1 CAs by improving q value, extending τs, and optimizing interface structure. Environment responsive MRI CAs have been developed to improve the diagnosis accuracy. Introducing other imaging contrast moiety into IONPs could increase the contrast efficiency. Optimizing in vivo behavior of IONPs have been proved to enlarge the signal difference between normal tissue and lesion.
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242
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Zeng J, Yang J, Lawrence WR, Pan C. AB1427 ASSOCIATION BETWEEN HYPERURICEMIA AND OSTEOPOROTIC IN CHINESE ADULTS, A CROSS-SECTIONAL STUDY. Ann Rheum Dis 2022. [DOI: 10.1136/annrheumdis-2022-eular.717] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
BackgroundHyperuricemia may have a protective role in diseases characterized by high levels of oxidative stress, such as osteoporosis. Previous studies have shown that hyperuricemia is associated with osteoporotic. However, this association is controversial and even yielded conflicting results.ObjectivesThis study investigated the relationship between hyperuricemia and osteoporotic among Chinese adults.MethodsThe data of cross-sectional study was collected at Guangdong Second Provincial General Hospital in Guangzhou City, China between January 2009 and December 2019. Physical examinations and laboratory measurement variables were obtained from the medical check-up system. The multivariate-adjusted logistic regression model was performed to assess the association between hyperuricemia and osteoporotic.ResultsA total of 18917 participants (11334 males and 7579 females) were included in this study, with an average age of 46.23 years (SD: 11.67) at baseline. It included 5881 cases of hyperuricemia and 1587 osteoporotic. After adjusted for the confounding factors in logistic regression analysis, we observed a negative significant association between hyperuricemia and risk of osteoporotic (odds ratio [OR],0.852, 95%CI 0.795–0.967; P <0.05). Further stratified analyses showed a negative significant association with the risk of osteoporotic in women (OR,0.787, 95%CI 0.698–0.853; P <0.05), man (OR,0.897, 95%CI 0.786–0.954; P <0.05) and old adults (OR, 0.808, 95%CI, 0.759-0.894; P <0.05). No significant differences in other groups.ConclusionOur study observed participants with hyperuricemia had significantly less osteoporosis. More high-quality research is needed to further support these findings.References[1]Zong Q, Hu Y, Zhang Q, Zhang X, Huang J, Wang T. Associations of hyperuricemia, gout, and UA-lowering therapy with the risk of fractures: A meta-analysis of observational studies. Joint Bone Spine. 2019 Jul;86(4):419-427.[2]Wang Y, Zhou R, Zhong W, Hu C, Lu S, Chai Y. Association of gout with osteoporotic fractures. Int Orthop. 2018 Sep;42(9):2041-2047.[3]Veronese N, Carraro S, Bano G, Trevisan C, Solmi M, Luchini C, Manzato E,Caccialanza R, Sergi G, Nicetto D, Cereda E. Hyperuricemia protects against low bone mineral density, osteoporosis and fractures: a systematic review and meta-analysis. Eur J Clin Invest. 2016 Nov;46(11):920-930.[4]Veronese N, Bolzetta F, De Rui M, Maggi S, Noale M, Zambon S, Corti MC, Toffanello ED, Baggio G, Perissinotto E, Crepaldi G, Manzato E, Sergi G. Serum uric acid and incident osteoporotic fractures in old people: The PRO.V.A study. Bone. 2015 Oct;79:183-9.Figure 1.Distribution of hyperuricemia and osteoporotic by gender.Disclosure of InterestsNone declared
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Zeng J, Sanders A, Hargest R, Ye L, Jiang W. P-266 Expression of HSP60 in colorectal cancer and implication in chemotherapeutic responses. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.04.356] [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: 11/01/2022] Open
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244
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Sui L, Zeng J, Ye L, Martin T, Jiang W, Hargest R. P-282 Impact of death-associated protein-3 (DAP3) and DAP3 binding cell death enhancer 1 (DELE1) on drug sensitivity in colorectal cancer cells. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.04.371] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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245
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Wang Z, Zeng J, Chen W. Impact of urban expansion on carbon storage under multi-scenario simulations in Wuhan, China. Environ Sci Pollut Res Int 2022; 29:45507-45526. [PMID: 35147879 DOI: 10.1007/s11356-022-19146-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/06/2021] [Accepted: 02/06/2022] [Indexed: 06/14/2023]
Abstract
Carbon storage in terrestrial ecosystems, which is the basis of the global carbon cycle, reflects the changes in the environment due to anthropogenic impacts. Rapid and effective assessment of the impact of urban expansion on carbon reserves is vital for the sustainable development of urban ecosystems. Previous studies on future scenario simulations lacked research regarding the driving factors of changes in carbon storages within urban expansion, and the economic value accounting for changes in carbon storages. Therefore, this study examined Wuhan, China, and explored the latent effects of urban expansion on terrestrial carbon storage by combining the Integrated Valuation of Ecosystem Services and Trade-offs (InVEST) and Patch-generating Land Use Simulation (PLUS) model. Based on different socioeconomic strategies, we developed three future scenarios, including Baseline Scenario (BS), Cropland Protection Scenario (CP) and Ecological protection Scenario (EP), to predict the urban built-up land use change from 2015 to 2035 in Wuhan and discussed the carbon storage impacts of urban expansion. The result shows that (1) Wuhan's urban built-up land area expanded 2.67 times between 1980 and 2015, which is approximately 685.17 km2 and is expected to continuously expand to 1349-1945.01 km2 by 2035. (2) Urban expansion in Wuhan has caused carbon storage loss by 5.12 × 106 t during 1980-2015 and will lead to carbon storage loss by 6.15 × 106 t, 4.7 × 106 t and 4.05 × 106 t under BS, CP, and EP scenarios from 2015 to 2035, accounting for 85.42%, 81.74%, and 78.79% of the total carbon loss, respectively. (3) The occupation of cropland by urban expansion is closely related to the road system expansion, which is the main driver of carbon storage reduction from 2015 to 2035. (4) We expect that by 2035, the districts facing carbon loss caused by the growth of urban built-up land will expand outward around secondary roads, and the scale of outward expansion under various scenarios will be ranked as BS > CP > EP. In combination, the InVEST and the PLUS model can assess the impact of urban expansion on carbon storage more efficiently and is conducive to carrying out urban planning and promoting a dynamic balance between urban economic development and human well-being.
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Affiliation(s)
- Zhuo Wang
- Department of Geography, School of Geography and Information Engineering, China University of Geosciences, Wuhan, 430074, China
- Research Center for Spatial Planning and Human-Environmental System Simulation, China University of Geosciences, Wuhan, 430074, China
| | - Jie Zeng
- Department of Geography, School of Geography and Information Engineering, China University of Geosciences, Wuhan, 430074, China.
- Research Center for Spatial Planning and Human-Environmental System Simulation, China University of Geosciences, Wuhan, 430074, China.
- Key Labs of Law Evaluation of Ministry of Natural Resources of China, 388 Lumo Road, Hongshan District, Wuhan, 430074, Hubei, China.
- State Key Laboratory of Earth Surface Processes and Resource Ecology, Beijing Normal University, Beijing, 100875, China.
| | - Wanxu Chen
- Department of Geography, School of Geography and Information Engineering, China University of Geosciences, Wuhan, 430074, China
- Research Center for Spatial Planning and Human-Environmental System Simulation, China University of Geosciences, Wuhan, 430074, China
- Key Labs of Law Evaluation of Ministry of Natural Resources of China, 388 Lumo Road, Hongshan District, Wuhan, 430074, Hubei, China
- State Key Laboratory of Earth Surface Processes and Resource Ecology, Beijing Normal University, Beijing, 100875, China
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Cui YR, Qu F, Zhong WJ, Yang HH, Zeng J, Huang JH, Liu J, Zhang MY, Zhou Y, Guan CX. Beneficial effects of aloperine on inflammation and oxidative stress by suppressing necroptosis in lipopolysaccharide-induced acute lung injury mouse model. Phytomedicine 2022; 100:154074. [PMID: 35397283 DOI: 10.1016/j.phymed.2022.154074] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/19/2021] [Revised: 02/22/2022] [Accepted: 03/25/2022] [Indexed: 06/14/2023]
Abstract
RATIONALE Alveolar epithelial cell death, inflammation, and oxidative stress are typical features of acute lung injury (ALI). Aloperine (Alo), an alkaloid isolated from Sophora alopecuroides, has been reported to display various biological effects, such as anti-inflammatory, immunoregulatory, and anti-oxidant properties. In this study, we investigated the effects and mechanisms of Alo in treating a lipopolysaccharide (LPS)-induced ALI in a murine model. METHODS The effects of Alo in LPS-induced ALI were investigated in C57BL/6 mice. The RIPK1 inhibitor (Nec-1) and the RIPK3 inhibitor (GSK'872) were used to evaluate the relationship of necroptosis, NF-κB activation, and PDC subunits in LPS-treated mouse alveolar epithelial cells (MLE-12). Then the effects of Alo on necroptosis, inflammation, and oxidative stress of LPS-stimulated MLE-12 cells were evaluated. RESULTS Alo significantly attenuated histopathological lung injuries and reduced lung wet/dry ratio in LPS-induced ALI mice. Alo also remarkedly reduced total protein and neutrophils recruitment in bronchoalveolar lavage fluid of ALI mice. Meanwhile, Alo ameliorated the LPS-induced necroptosis in the lungs of ALI mice. The RIPK3 inhibitor GSK'872, but not the RIPK1 inhibitor Nec-1, reversed LPS-induced p65 phosphorylation and translocation to the nucleus in MLE-12 cells. GSK'872 also reversed the LPS-induced increase in ROS and binding of RIPK3 and PDC subunits in MLE-12 cells. Moreover, Alo down-regulated the levels of p-RIPK1, p-RIPK3, p-MLKL, p-p65, the translocation of p65 to the nucleus, and reduced the expression of IL-6 and IL-8 in LPS-stimulated MLE-12 cells. Alo also inhibited the binding of RIPK3 and PDC-E1α, PDC-E1β, PDC-E2, and PDC-E3 and the ROS production in LPS-treated MLE-12 cells. CONCLUSION The present study validated the beneficial effects of Alo on LPS-induced ALI , suggesting Alo may be a new drug candidate against ALI.
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Affiliation(s)
- Yan-Ru Cui
- Department of Physiology, School of Basic Medicine Science, Central South University, Changsha, Hunan 410078, China; Department of Physiology, Jiangxi University of Chinese Medicine, Nanchang, Jiangxi 330004, China
| | - Fei Qu
- Department of Pharmacology, Jiangxi University of Chinese Medicine, Nanchang, Jiangxi 330004, China
| | - Wen-Jing Zhong
- Department of Physiology, School of Basic Medicine Science, Central South University, Changsha, Hunan 410078, China
| | - Hui-Hui Yang
- Department of Physiology, School of Basic Medicine Science, Central South University, Changsha, Hunan 410078, China
| | - Jie Zeng
- Department of Physiology, Jiangxi University of Chinese Medicine, Nanchang, Jiangxi 330004, China
| | - Jun-Hao Huang
- Department of Pharmacology, Jiangxi University of Chinese Medicine, Nanchang, Jiangxi 330004, China
| | - Jie Liu
- Department of Physiology, Jiangxi University of Chinese Medicine, Nanchang, Jiangxi 330004, China
| | - Ming-Yue Zhang
- Department of Pharmacology, Jiangxi University of Chinese Medicine, Nanchang, Jiangxi 330004, China
| | - Yong Zhou
- Department of Physiology, School of Basic Medicine Science, Central South University, Changsha, Hunan 410078, China.
| | - Cha-Xiang Guan
- Department of Physiology, School of Basic Medicine Science, Central South University, Changsha, Hunan 410078, China.
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Zeng J, Lawrence WR. AB1422 PREVALENCE OF HYPERURICEMIA IN CHINESE ADULTS: DATA FROM A CROSS-SECTIONAL STUDY. Ann Rheum Dis 2022. [DOI: 10.1136/annrheumdis-2022-eular.124] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
BackgroundPrevious studies have observed an increasing trend in the prevalence of hyperuricemia which is linked to the physiological prerequisite for gout in recent years. However, the prevalence of hyperuricemia varies across different populations and different areas.ObjectivesThe aim of this study was to explore the prevalence of hyperuricemia and influencing factors in Chinese adults.MethodsThe analysis was a part of a cross-sectional study in Guangdong Second Provincial General Hospital in Guangzhou City, China between January 2009 and December 2019. A total of 205922 participants (21401 with hyperuricemia) were included in this study. Hyperuricemia was defined as serum uric acid ≥416.0 µmol/L (7.0 mg/dl) for men and ≥357.0 µmol/L(6.0 mg/dl) for women. We calculated the prevalence of hyperuricemia and used the multivariate-adjusted logistic regression model to identify the risk factors associated with hyperuricemia.ResultsThe overall estimated prevalence of HUA was 10.4% in China. Our study showed the prevalence of hyperuricemia in male (10.7%) was higher than that in female (9.9%) (P<0.05). The prevalence of HUA in the age group(≥75) subjects (13.3%) was higher than others. Multivariate logistic regression analysis revealed that sex (OR=1.75), age (OR=1.68), blood urea nitrogen (BUN) (OR=1.051), creatinine (Cr) (OR=1.045), high-density lipoprotein cholesterol (HDL-C) (OR=1.225), low-density lipoprotein cholesterol (LDL-C) (OR=1.466), systolic blood pressure (SBP) (OR=1.012),triglycerides (TG) (OR=1.460) and Body Mass Index (BMI) (OR=1.080) could increase the risk of hyperuricemia, while diastolic blood pressure (DBP) (OR=0.998), fasting plasma glucose (FPG) (OR=0.902) and total cholesterol (TC) (OR=0.704) were associated with a lower risk of hyperuricemia in all adults.ConclusionThe latest prevalence of hyperuricemia is high in Chinese adults and is associated with multiple factors, indicating that prevention and control strategies for hyperuricemia are needed urgently.References[1]Han B, Wang N, Chen Y, Li Q, Zhu C, Chen Y, Lu Y. Prevalence of hyperuricaemia in an Eastern Chinese population: a cross-sectional study. BMJ Open. 2020 May 20;10(5):e035614.[2]Liu H, Zhang XM, Wang YL, Liu BC. Prevalence of hyperuricemia among Chinese adults: a national cross-sectional survey using multistage, stratified sampling. J Nephrol. 2014 Dec;27(6):653-8.[3]Song P, Wang H, Xia W, Chang X, Wang M, An L. Prevalence and correlates of hyperuricemia in the middle-aged and older adults in China. Sci Rep. 2018 Mar 12;8(1):4314.[4]Dong X, Zhang H, Wang F, Liu X, Yang K, Tu R, Wei M, Wang L, Mao Z, Zhang G,Wang C. Epidemiology and prevalence of hyperuricemia among men and women in Chinese rural population: The Henan Rural Cohort Study. Mod Rheumatol. 2020 Sep;30(5):910-920.[5]Shan R, Ning Y, Ma Y, Gao X, Zhou Z, Jin C, Wu J, Lv J, Li L. Incidence and Risk Factors of Hyperuricemia among 2.5 Million Chinese Adults during the Years 2017-2018. Int J Environ Res Public Health. 2021 Feb 28;18(5):2360.Table 1.The prevalence of hyperuricemia by gender and age groupsVariableNumberHyperuricemianPrevalence (%)GenderMale1242371333010.7Female8168580719.9Age group <3048437496510.3 30-4484331898910.7 45-595217549769.5 60-7414710164011.1 ≥75626983113.3Overall2059222140110.4Disclosure of InterestsNone declared
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Wang M, Zeng J, Huang K, Tian X, Gao H, Zhang K. Effects of freeze–thaw treatments at different temperatures on the properties of gluten protein from fermented dough. J FOOD PROCESS PRES 2022. [DOI: 10.1111/jfpp.16768] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Affiliation(s)
- Mengyu Wang
- School of Food Science Henan Institute of Science and Technology Xinxiang 453003 China
| | - Jie Zeng
- School of Food Science Henan Institute of Science and Technology Xinxiang 453003 China
| | - Keqiang Huang
- Intelligent Agricultural College Liaoning Agricultural Technical College Yingkou, Liaoning 115009 China
| | - Xiaoling Tian
- Food and Drug Department Liaoning Agricultural Technical College Yingkou, Liaoning 115009 China
| | - Haiyan Gao
- School of Food Science Henan Institute of Science and Technology Xinxiang 453003 China
| | - Keke Zhang
- School of Food Science Henan Institute of Science and Technology Xinxiang 453003 China
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Yi J, Tan S, Zeng Y, Zou L, Zeng J, Zhang C, Liu L, Fan P. Comprehensive Analysis of Prognostic and immune infiltrates for FOXPs Transcription Factors in Human Breast Cancer. Sci Rep 2022; 12:8896. [PMID: 35614183 PMCID: PMC9132954 DOI: 10.1038/s41598-022-12954-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2022] [Accepted: 05/18/2022] [Indexed: 01/11/2023] Open
Abstract
Forkhead-box-P family include FOXP1/2/3/4 and its clinical significance still remains unclear in breast cancer (BRCA). We analysed the expressions of FOXPs in BRCA patients to determine diagnostic and prognostic values. Our results indicated that the transcriptional levels of FOXP3/4 were up-regulated in BRCA patients, but FOXP2 were down-regulated. No statistically significant correlation were found between the expression levels of FOXPs in Pathologic stage. FOXP2/3 had a significantly high AUC value in the detection of breast cancer, with 96.8% or 95.7% in accuracy respectively. Our study also suggested that BRCA patients with high transcription levels of FOXP1/2/4 were significantly associated with longer Overall Survival (OS). In contrast, BRCA patients with high transcription level of FOXP3 was not statistically related with OS. Our work revealed that FOXPs were closely related to the alteration of extensive immune checkpoints in breast invasive carcinoma. Additionally, FOXP3 has a significant positive correlation with PDCD1, CD274, CTLA4 and TMB in breast cancer, and FOXP3 expression showed a statistically significant correlation with infiltration of immune cells. Finally, we found that FOXP3 expression predicted the breast cancer cells response to anticancer drugs. Altogether, our work strongly suggested that FOXPs could serve as a biomarker for tumor detection, therapeutic design and prognosis.
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Affiliation(s)
- Jianing Yi
- Surgical Department of Breast and Thyroid Gland, Hunan Provincial People's Hospital, The First Affiliated Hospital of Hunan Normal University, Changsha, Hunan, People's Republic of China
| | - Siyi Tan
- Surgical Department of Medical Laboratory, Huazhi Biotechnology Co. Ltd, Changsha, Hunan, People's Republic of China
| | - Yuanjun Zeng
- Department of Pathology, Hunan Provincial People's Hospital, The First Affiliated Hospital of Hunan Normal University, Changsha, Hunan, People's Republic of China
| | - Lianhong Zou
- Institute of Translational Medicine, Hunan Provincial People's Hospital, The First Affiliated Hospital of Hunan Normal University, Changsha, Hunan, People's Republic of China
| | - Jie Zeng
- Surgical Department of Breast and Thyroid Gland, Hunan Provincial People's Hospital, The First Affiliated Hospital of Hunan Normal University, Changsha, Hunan, People's Republic of China
| | - Chaojie Zhang
- Surgical Department of Breast and Thyroid Gland, Hunan Provincial People's Hospital, The First Affiliated Hospital of Hunan Normal University, Changsha, Hunan, People's Republic of China
| | - Luyao Liu
- Surgical Department of Breast and Thyroid Gland, Hunan Provincial People's Hospital, The First Affiliated Hospital of Hunan Normal University, Changsha, Hunan, People's Republic of China.
| | - Peizhi Fan
- Surgical Department of Breast and Thyroid Gland, Hunan Provincial People's Hospital, The First Affiliated Hospital of Hunan Normal University, Changsha, Hunan, People's Republic of China.
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Zuo M, Xiang S, Bhattacharyya S, Chen Q, Zeng J, Li C, Deng Y, Siu C, Yin L. Management strategies and outcomes of acute coronary syndrome (ACS) during Covid-19 pandemic. BMC Cardiovasc Disord 2022; 22:242. [PMID: 35614403 PMCID: PMC9130978 DOI: 10.1186/s12872-022-02680-z] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Accepted: 05/13/2022] [Indexed: 02/08/2023] Open
Abstract
Background The COVID-19 outbreak represents a significant challenge to international health. Several studies have reported a substantial decrease in the number of patients attending emergency departments with acute coronary syndromes (ACS) and there has been a concomitant rise in early mortality or complications during the COVID-19 pandemic. A modified management system that emphasizes nearby treatment, safety, and protection, alongside a closer and more effective multiple discipline collaborative team was developed by our Chest Pain Center at an early stage of the pandemic. It was therefore necessary to evaluate whether the newly adopted management strategies improved the clinical outcomes of ACS patients in the early stages of the COVID-19 pandemic. Methods Patients admitted to our Chest Pain Center from January 25th to April 30th, 2020 based on electronic data in the hospitals ACS registry, were included in the COVID-19 group. Patients admitted during the same period (25 January to 30 April) in 2019 were included in the pre-COVID-19 group. The characteristics and clinical outcomes of the ACS patients in the COVID-19 period group were compared with those of the ACS patients in the pre-COVID-19 group. Multivariate logistic regression analyses were used to identify the risk factors associated with clinical outcomes.
Results The number of patients presenting to the Chest Pain Center was reduced by 45% (p = 0.01) in the COVID-19 group, a total of 223 ACS patients were included in the analysis. There was a longer average delay from the onset of symptom to first medical contact (FMC) (1176.9 min vs. 625.2 min, p = 0.001) in the COVID-19 period group compared to the pre-COVID-19 group. Moreover, immediate percutaneous coronary intervention (PCI) (80.1% vs. 92.3%, p = 0.008) was performed less frequently on ACS patients in the COVID-19 group compared to the pre-COVID-19 group. However, more ACS patients received thrombolytic therapy (5.8% vs. 0.6%, p = 0.0052) in the COVID-19 group than observed in the pre-COVID-19 group. Interestingly, clinical outcome did not worsen in the COVID-19 group when cardiogenic shock, sustained ventricular tachycardia, ventricular fibrillation or use of mechanical circulatory support (MCS) were compared against the pre-COVID-19 group (13.5% vs. 11.6%, p = 0.55). Only age was independently associated with composite clinical outcomes (HR = 1.3; 95% CI 1.12–1.50, p = 0.003). Conclusion This retrospective study showed that the adverse outcomes were not different during the COVID-19 pandemic compared to historical control data, suggesting that newly adopted management strategies might provide optimal care for ACS patients. Larger sample sizes and longer follow-up periods on this issue are needed in the future.
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Affiliation(s)
- Mingliang Zuo
- Department of Cardiovascular Ultrasound and Non-invasive Cardiology, Sichuan Academy of Medical Sciences and Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, 610072, China
| | - Shoubo Xiang
- West China Hospital, Sichuan University, Chengdu, China
| | - Sanjib Bhattacharyya
- College of Pharmaceutical Sciences, Southwest University, Beibei, Chongqing, China
| | - Qiuyi Chen
- Department of Cardiovascular Ultrasound and Non-invasive Cardiology, Sichuan Academy of Medical Sciences and Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, 610072, China
| | - Jie Zeng
- Department of Cardiology, Sichuan Academy of Medical Sciences and Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, China
| | - Chunmei Li
- Department of Cardiovascular Ultrasound and Non-invasive Cardiology, Sichuan Academy of Medical Sciences and Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, 610072, China
| | - Yan Deng
- Department of Cardiovascular Ultrasound and Non-invasive Cardiology, Sichuan Academy of Medical Sciences and Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, 610072, China
| | - Chungwah Siu
- Cardiology Division, Department of Medicine, Queen Mary Hospital, The University of Hong Kong, Room 1929, Block K, 102 Pokfulam Road, Hong Kong SAR, China.
| | - Lixue Yin
- Department of Cardiovascular Ultrasound and Non-invasive Cardiology, Sichuan Academy of Medical Sciences and Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, 610072, China.
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