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Xiong Q, Liu T, Ying Y, Yu X, Wang Z, Gao H, Lin T, Fan W, Zhang Z, Wei Q, Ge Y, Zeng S, Xu C. Establishment of bladder cancer spheroids and cultured in microfluidic platform for predicting drug response. Bioeng Transl Med 2024; 9:e10624. [PMID: 38435820 PMCID: PMC10905551 DOI: 10.1002/btm2.10624] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2023] [Revised: 09/25/2023] [Accepted: 11/09/2023] [Indexed: 03/05/2024] Open
Abstract
Cisplatin-containing combination chemotherapy has been used as the standard treatment for bladder cancer patients at advanced stage. However, nearly 50% of patients are nonresponders. To guide the selection of more effective chemotherapeutic agents, a bladder cancer spheroids microfluidic drug sensitivity analysis system was established in this study. Bladder cancer spheroids were established and successfully cultured in a customized microfluidic device to assess their response to different chemotherapeutic agents. The in vitro drug sensitivity results were also compared to patient-derived xenograft (PDX) models and clinical responses of patients. As a result, bladder cancer spheroids faithfully recapitulate the histopathological and genetic features of their corresponding parental tumors. Furthermore, the in vitro drug sensitivity outcomes of spheroids (n = 8) demonstrated a high level of correlation with the PDX (n = 2) and clinical response in patients (n = 2). Our study highlights the potential of combining bladder cancer spheroids and microfluidic devices as an efficient and accurate platform for personalized selection of chemotherapeutic agents.
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Affiliation(s)
- Qiao Xiong
- Department of UrologyInstitute of Urology, West China Hospital, Sichuan UniversityChengduP. R. China
- Department of UrologyChanghai Hospital, Naval Medical UniversityShanghaiP. R. China
| | - Ting Liu
- State Key Laboratory of Transducer TechnologyShanghai Institute of Microsystem and Information Technology, Chinese Academy of SciencesShanghaiP. R. China
| | - Yidie Ying
- Department of UrologyChanghai Hospital, Naval Medical UniversityShanghaiP. R. China
| | - Xiaowen Yu
- Department of GeriatricsChanghai Hospital, Naval Medical UniversityShanghaiP. R. China
| | - Ziwei Wang
- Department of UrologyChanghai Hospital, Naval Medical UniversityShanghaiP. R. China
| | - Hongliang Gao
- Department of UrologyChanghai Hospital, Naval Medical UniversityShanghaiP. R. China
| | - Tianhai Lin
- Department of UrologyInstitute of Urology, West China Hospital, Sichuan UniversityChengduP. R. China
| | - Weihua Fan
- State Key Laboratory of Transducer TechnologyShanghai Institute of Microsystem and Information Technology, Chinese Academy of SciencesShanghaiP. R. China
| | - Zhensheng Zhang
- Department of UrologyChanghai Hospital, Naval Medical UniversityShanghaiP. R. China
| | - Qiang Wei
- Department of UrologyInstitute of Urology, West China Hospital, Sichuan UniversityChengduP. R. China
| | - Yuqing Ge
- State Key Laboratory of Transducer TechnologyShanghai Institute of Microsystem and Information Technology, Chinese Academy of SciencesShanghaiP. R. China
| | - Shuxiong Zeng
- Department of UrologyChanghai Hospital, Naval Medical UniversityShanghaiP. R. China
| | - Chuanliang Xu
- Department of UrologyChanghai Hospital, Naval Medical UniversityShanghaiP. R. China
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Cheng Q, Ge Y, Lin B, Zhou L, Mao H, Zhao J. Capacitive Bionic Magnetic Sensors Based on One-Step Biointerface Preparation. ACS Appl Mater Interfaces 2024; 16:6789-6798. [PMID: 38297999 DOI: 10.1021/acsami.3c15519] [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] [Indexed: 02/02/2024]
Abstract
Magnetic biomolecule-based bionic magnetic field sensors are anticipated to open up novel pathways for magnetic field detection. The detection range and accuracy of current bionic magnetic field sensors are limited, and little work is based on the capacitive response principle. We successfully developed a biochemical interface with an extralarge target-receptor size ratio, which can be manufactured in a single step for weak magnetic field detection across a wide frequency range, and we used electrochemical capacitance as a magnetic field change conduction strategy. The thickness-controllable nanoscale bovine serum albumin/graphene layer on an indium tin oxide working electrode combines with the one-step preparation method to immobilize the MagR/Cry4 complex. This capacitive bionic magnetic sensor can achieve the detection range of 0-120 mT. This biointerface design strategy obtains the further improvement of the performance of this bionic magnetic field sensor. Furthermore, the biointerface construction and optimization methodology in this proposal has potential applications in the design of other medical biosensors.
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Affiliation(s)
- Qian Cheng
- State Key Laboratory of Transducer Technology, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai 200050, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
- University of Chinese Academy of Science, Beijing 100039, China
| | - Yuqing Ge
- State Key Laboratory of Transducer Technology, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai 200050, China
| | - Bo Lin
- State Key Laboratory of Transducer Technology, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai 200050, China
- University of Chinese Academy of Science, Beijing 100039, China
| | - Lin Zhou
- State Key Laboratory of Transducer Technology, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai 200050, China
| | - Hongju Mao
- State Key Laboratory of Transducer Technology, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai 200050, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jianlong Zhao
- State Key Laboratory of Transducer Technology, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai 200050, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
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Fei G, Li H, Yang S, Wang H, Ge Y, Wang Z, Zhang X, Wei P, Li L. Burden of lung cancer attributed to particulate matter pollution in China: an epidemiological study from 1990 to 2019. Public Health 2024; 227:141-147. [PMID: 38232561 DOI: 10.1016/j.puhe.2023.12.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Revised: 11/22/2023] [Accepted: 12/05/2023] [Indexed: 01/19/2024]
Abstract
OBJECTIVES The aim of this study was to examine the disease burden of lung cancer attributable to particulate matter (PM2.5) pollution in China from 1990 to 2019. STUDY DESIGN Data from the Global Burden of Disease Study 2019 were used to estimate the disease burden of tracheal, bronchus and lung cancer attributed to PM2.5 over time in China. METHODS Joinpoint regression models were applied to disability-adjusted life years (DALYs) to assess the time trends and estimate the impact of PM2.5 on the overall disease burden of lung cancer. Furthermore, age-period-cohort models were conducted to assess the relationships between lung cancer DALYs attributed to PM2.5 exposure and age, calendar period and birth cohort trends in China from 1990 to 2019. RESULTS Lung cancer DALYs attributable to household air pollution from solid fuels decreased with an average annual percent change (AAPC) of 2.9 % per 100,000 population, while those attributable to ambient particular matter pollution (APE) increased (AAPC: -4.7 % per 100,000 population) over the past 30 years. The burden of lung cancer in terms of DALYs in males was higher than in females, and it demonstrated an age-dependent increase. The period and cohort effects also had significant impacts on the DALYs rates of lung cancer attributable to APE, indicating an overall increase in lung cancer DALYs for all age groups in each year. CONCLUSIONS This study highlights the need for effective strategies to reduce PM2.5 exposure in China, particularly from outdoor sources. Gender differences and age, period and cohort effects observed in the study provide valuable insights into long-term trends of lung cancer burden attributed to PM2.5.
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Affiliation(s)
- G Fei
- Department of Epidemiology and Biostatistics, School of Public Health, Southeast University, Nanjing, Jiangsu Province, China; University College London Great Ormond Street Institute of Child Health, Population, Policy & Practice Research and Teaching Department, London, UK; Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing, Jiangsu Province, China
| | - H Li
- Department of Epidemiology and Biostatistics, School of Public Health, Southeast University, Nanjing, Jiangsu Province, China
| | - S Yang
- School of Applied Meteorology, Nanjing University of Information Science and Technology, Nanjing, Jiangsu Province, China
| | - H Wang
- Lianyungang Meteorological Bureau, Lianyungang, Jiangsu Province, China
| | - Y Ge
- Department of Epidemiology and Biostatistics, School of Public Health, Southeast University, Nanjing, Jiangsu Province, China
| | - Z Wang
- Department of Epidemiology and Biostatistics, School of Public Health, Southeast University, Nanjing, Jiangsu Province, China
| | - X Zhang
- Department of Epidemiology and Biostatistics, School of Public Health, Southeast University, Nanjing, Jiangsu Province, China; Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing, Jiangsu Province, China
| | - P Wei
- Department of Epidemiology and Biostatistics, School of Public Health, Southeast University, Nanjing, Jiangsu Province, China; Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing, Jiangsu Province, China.
| | - L Li
- University College London Great Ormond Street Institute of Child Health, Population, Policy & Practice Research and Teaching Department, London, UK
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Zhou S, Chen P, Xiao C, Ge Y, Gao H. Recent advances in dynamic dual mode systems for daytime radiative cooling and solar heating. RSC Adv 2023; 13:31738-31755. [PMID: 37908645 PMCID: PMC10613950 DOI: 10.1039/d3ra05506j] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2023] [Accepted: 10/24/2023] [Indexed: 11/02/2023] Open
Abstract
Thermal management, including heating and cooling, plays an important role in human productive activities and daily life. Nevertheless, in the actual environment, almost all the ambient scenarios come with the challenge that the objects are located in a quite dynamic and variable environment, which includes fluctuations in aspects such as space, time, sunlight, season, and temperature. It is imperative to develop low-energy or even zero-energy thermal-management technologies with renewable and clean energy. In this review, we summarised the latest technological advances and the prospects in this burgeoning field. First, we present the fundamental principles of the daytime passive radiative cooling (PDRC) thermal management device. Next, In the domain of dual-mode systems, they are classified into various types based on the diverse mechanisms of transitioning between cooling and heating states, including electrical responsive, mechanical responsive, temperature responsive, and solution responsive. Furthermore, we conducted an in-depth analysis of the principles and design methodologies associated with these categories, followed by a comparative assessment of their performance in radiative cooling and solar heating applications. Finally, this review presents the challenges and opportunities of dynamic dual mode thermal management, while also identifying future directions.
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Affiliation(s)
- Shiqing Zhou
- College of Environmental Science and Engineering, Tongji University 1239 Siping Road Shanghai 200092 P. R. China
| | - Pengyue Chen
- College of Environmental Science and Engineering, Tongji University 1239 Siping Road Shanghai 200092 P. R. China
| | - Chunhong Xiao
- College of Environmental Science and Engineering, Tongji University 1239 Siping Road Shanghai 200092 P. R. China
| | - Yuqing Ge
- College of Environmental Science and Engineering, Tongji University 1239 Siping Road Shanghai 200092 P. R. China
| | - Hongwen Gao
- College of Environmental Science and Engineering, Tongji University 1239 Siping Road Shanghai 200092 P. R. China
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Yan M, Dong S, Gong Q, Xu Q, Ge Y. Comparative chloroplast genome analysis of four Polygonatum species insights into DNA barcoding, evolution, and phylogeny. Sci Rep 2023; 13:16495. [PMID: 37779129 PMCID: PMC10543443 DOI: 10.1038/s41598-023-43638-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Accepted: 09/26/2023] [Indexed: 10/03/2023] Open
Abstract
The Polygonatum genus represents a perennial herb with the Liliaceae family, boasting substantial economic and medicinal significance. The majority of Polygonatum plants exhibit notable similarity while lacking distinctive identifying characteristics, thus resulting in the proliferation of adulterated medicinal materials within the market. Within this study, we conducted an in-depth analysis of the complete chloroplast (cp) genomes of four Polygonatum plants and compared them with four closely akin species. The primary objectives were to unveil structural variations, species divergence, and the phylogenetic interrelations among taxa. The cp genomes of the four Polygonatum species were typified by a conventional quadripartite structure, incorporating a large single copy region (LSC), a small single copy region (SSC), and a pair of inverted repeat regions. In total, we annotated a range of 131 to 133 genes, encompassing 84 to 86 protein-coding genes, 38 transfer RNA (tRNA) genes, 8 ribosomal RNA (rRNA) genes, and 0 to 2 pseudogenes (ycf1, infA). Our comparative analyses unequivocally revealed a remarkable consistency in gene order and GC content within the Polygonatum genus. Furthermore, we predicted a potential 59 to 64 RNA editing sites distributed across 22 protein-coding genes, with the ndhB gene exhibiting the most prominent propensity for RNA editing sites, boasting a tally of 15 sites. Notably, six regions of substantial potential variability were ascertained, characterized by elevated Pi values. Noteworthy, molecular markers for species identification, population genetic scrutiny, and phylogenetic investigations within the genus were identified in the form of the psaJ-rpl33 and trnS + trnT-psaD barcodes. The resultant phylogenetic tree unequivocally depicted the formation of a monophyletic clade comprising species within the evolutionary framework of Liliaceae, demonstrating closer evolutionary affinities with Maianthemum, Dracaeneae, and Asparageae. This comprehensive compendium of findings collectively contributes to the advancement of molecular species identification, elucidation of phylogenetic interrelationships, and the establishment of DNA barcodes tailored to the Polygonatum species.
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Affiliation(s)
- Meixiu Yan
- The First Affiliated Hospital of Zhejiang Chinese Medical University, 54 Youdian Road, Hangzhou, Zhejiang Province, People's Republic of China
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou, People's Republic of China
| | - Shujie Dong
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou, People's Republic of China
| | - Qiuyi Gong
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou, People's Republic of China
| | - Qin Xu
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou, People's Republic of China
| | - Yuqing Ge
- The First Affiliated Hospital of Zhejiang Chinese Medical University, 54 Youdian Road, Hangzhou, Zhejiang Province, People's Republic of China.
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Dohi T, Weißenhofer M, Kerber N, Kammerbauer F, Ge Y, Raab K, Zázvorka J, Syskaki MA, Shahee A, Ruhwedel M, Böttcher T, Pirro P, Jakob G, Nowak U, Kläui M. Enhanced thermally-activated skyrmion diffusion with tunable effective gyrotropic force. Nat Commun 2023; 14:5424. [PMID: 37696785 PMCID: PMC10495465 DOI: 10.1038/s41467-023-40720-0] [Citation(s) in RCA: 2] [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: 11/01/2022] [Accepted: 08/07/2023] [Indexed: 09/13/2023] Open
Abstract
Magnetic skyrmions, topologically-stabilized spin textures that emerge in magnetic systems, have garnered considerable interest due to a variety of electromagnetic responses that are governed by the topology. The topology that creates a microscopic gyrotropic force also causes detrimental effects, such as the skyrmion Hall effect, which is a well-studied phenomenon highlighting the influence of topology on the deterministic dynamics and drift motion. Furthermore, the gyrotropic force is anticipated to have a substantial impact on stochastic diffusive motion; however, the predicted repercussions have yet to be demonstrated, even qualitatively. Here we demonstrate enhanced thermally-activated diffusive motion of skyrmions in a specifically designed synthetic antiferromagnet. Suppressing the effective gyrotropic force by tuning the angular momentum compensation leads to a more than 10 times enhanced diffusion coefficient compared to that of ferromagnetic skyrmions. Consequently, our findings not only demonstrate the gyro-force dependence of the diffusion coefficient but also enable ultimately energy-efficient unconventional stochastic computing.
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Affiliation(s)
- Takaaki Dohi
- Institut für Physik, Johannes Gutenberg-Universität Mainz, Staudingerweg 7, 55128, Mainz, Germany.
- Laboratory for Nanoelectronics and Spintronics, Research Institute of Electrical Communication, Tohoku University, Sendai, 980-8577, Japan.
| | - Markus Weißenhofer
- Fachbereich Physik, Universität Konstanz, DE-78457, Konstanz, Germany.
- Department of Physics and Astronomy, Uppsala University, P.O. Box 516, S-751 20, Uppsala, Sweden.
- Department of Physics, Freie Universität Berlin, Arnimallee 14, D-14195, Berlin, Germany.
| | - Nico Kerber
- Institut für Physik, Johannes Gutenberg-Universität Mainz, Staudingerweg 7, 55128, Mainz, Germany
- Graduate School of Excellence Materials Science in Mainz, Staudingerweg 9, 55128, Mainz, Germany
| | - Fabian Kammerbauer
- Institut für Physik, Johannes Gutenberg-Universität Mainz, Staudingerweg 7, 55128, Mainz, Germany
| | - Yuqing Ge
- Institut für Physik, Johannes Gutenberg-Universität Mainz, Staudingerweg 7, 55128, Mainz, Germany
| | - Klaus Raab
- Institut für Physik, Johannes Gutenberg-Universität Mainz, Staudingerweg 7, 55128, Mainz, Germany
| | - Jakub Zázvorka
- Institute of Physics, Faculty of Mathematics and Physics, Charles University, Ke Karlovu 5, Prague, 12116, Czech Republic
| | - Maria-Andromachi Syskaki
- Institut für Physik, Johannes Gutenberg-Universität Mainz, Staudingerweg 7, 55128, Mainz, Germany
- Singulus Technologies AG, 63796, Kahl am Main, Germany
| | - Aga Shahee
- Institut für Physik, Johannes Gutenberg-Universität Mainz, Staudingerweg 7, 55128, Mainz, Germany
| | - Moritz Ruhwedel
- Fachbereich Physik and Landesforschungszentrum OPTIMAS, Technische Universität Kaiserslautern, Gottlieb-Daimler-Straße 46, 67663, Kaiserslautern, Germany
| | - Tobias Böttcher
- Graduate School of Excellence Materials Science in Mainz, Staudingerweg 9, 55128, Mainz, Germany
- Fachbereich Physik and Landesforschungszentrum OPTIMAS, Technische Universität Kaiserslautern, Gottlieb-Daimler-Straße 46, 67663, Kaiserslautern, Germany
| | - Philipp Pirro
- Fachbereich Physik and Landesforschungszentrum OPTIMAS, Technische Universität Kaiserslautern, Gottlieb-Daimler-Straße 46, 67663, Kaiserslautern, Germany
| | - Gerhard Jakob
- Institut für Physik, Johannes Gutenberg-Universität Mainz, Staudingerweg 7, 55128, Mainz, Germany
- Graduate School of Excellence Materials Science in Mainz, Staudingerweg 9, 55128, Mainz, Germany
| | - Ulrich Nowak
- Fachbereich Physik, Universität Konstanz, DE-78457, Konstanz, Germany
| | - Mathias Kläui
- Institut für Physik, Johannes Gutenberg-Universität Mainz, Staudingerweg 7, 55128, Mainz, Germany.
- Graduate School of Excellence Materials Science in Mainz, Staudingerweg 9, 55128, Mainz, Germany.
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Ma XJ, Liu X, Ge Y. [Pay attention to the infectious complications in the clinical application of biological agents]. Zhonghua Yi Xue Za Zhi 2023; 103:2546-2551. [PMID: 37650201 DOI: 10.3760/cma.j.cn112137-20230608-00962] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 09/01/2023]
Abstract
Biological agents have been widely used in the treatment of many clinical diseases by targeting specific immune cells or cytokines. In the course of clinical use, biological agents can lead to secondary immune deficiency, which increases the risk of infection. At present, there are no evidence-based guidelines or management opinions on the differences of infections caused by various biological agents, how to identify infectious complications in the course of treatment with different biological agents at an early stage, and how to take effective and targeted prevention. This paper summarizes the infection complications and their characteristics that need to be paid attention to in the clinical introduction of biological agents, aiming to help clinicians make reasonable decisions for infection complications in the process of using biological agents, reduce the incidence of infection, and improve the success rate of diagnosis and treatment.
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Affiliation(s)
- X J Ma
- Department of Infectious Disease, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - X Liu
- Department of Infectious Diseases, the Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai 519000, China
| | - Y Ge
- Department of Infectious Disease, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing 100730, China
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Liu T, Ge Y, Chen Z, Wu L, Tian T, Yao W, Zhao J. Synergistic Modulation of a Tunable Microenvironment to Fabricate a Liver Fibrosis Chip for Drug Testing. ACS Biomater Sci Eng 2023; 9:4893-4906. [PMID: 37523767 DOI: 10.1021/acsbiomaterials.3c00213] [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] [Indexed: 08/02/2023]
Abstract
Liver fibrosis is a progressive physiological change that occurs after liver injury and seriously endangers human health. The lack of reliable and physiologically relevant pathological models of liver fibrosis leads to a longer drug development period and sizeable economic investment. The fabrication of a biomimetic liver-on-a-chip is significant for liver disease treatment and drug development. Here, a sandwich chip with a microwell array structure in its bottom layer was fabricated to simulate the Disse space structure of hepatic sinusoids in vitro. By synergistic modulation of the cross-linking degree of gelatin-methacryloyl (GelMA) hydrogels and the induction of transforming growth factor-beta (TGF-β), the early and late stages of liver fibrosis were designed in the chip. Owing to its three-dimensional-mixed-culture strategy, it was possible to construct a liver sinusoid model in vitro to allow for faithful physiological emulation. The model was further subjected to drug treatment, and it presented a significant difference in treatment response in early and late fibrosis progression. Our system provides a unique method for emulating liver function through a vitro liver fibrosis-on-a-chip, potentially paving the way for investigating human liver fibrosis and related drug development.
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Affiliation(s)
- Ting Liu
- Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai 200050, P. R. China
- Xiangfu Laboratory, Jiashan 314102, P. R. China
| | - Yuqing Ge
- Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai 200050, P. R. China
| | - Zhongping Chen
- Institute of Special Environmental Medicine, Co-innovation Center of Neuroregeneration, Nantong University, Nantong 226019, P. R. China
| | - Lei Wu
- Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai 200050, P. R. China
| | - Tian Tian
- Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai 200050, P. R. China
| | - Wei Yao
- Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai 200050, P. R. China
| | - Jianlong Zhao
- Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai 200050, P. R. China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, P. R. China
- Institute for Stem Cell and Regeneration, Chinese Academy of Sciences, Beijing 100101, P. R. China
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Yan R, Liang ZW, Liu HS, Ge Y, An GY. [Doublecortin-like kinase 1 activates Hippo pathway to promote migration, invasion and proliferation of pancreatic cancer cells]. Zhonghua Zhong Liu Za Zhi 2023; 45:594-604. [PMID: 37462016 DOI: 10.3760/cma.j.cn112152-20221222-00845] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 07/20/2023]
Abstract
Objective: To explore the mechanism of Doublecortin-like kinase 1 (DCLK1) in promoting cell migration, invasion and proliferation in pancreatic cancer. Methods: The correlation between DCLK1 and Hippo pathway was analyzed using TCGA and GTEx databases and confirmed by fluorescence staining of pancreatic cancer tissue microarrays. At the cellular level, immunofluorescence staining of cell crawls and western blot assays were performed to clarify whether DCLK1 regulates yes associated protein1 (YAP1), a downstream effector of the Hippo pathway. Reverse transcription-quantitative real-time polymerase chain reaction (RT-qPCR) was used to analyze the expressions of YAP1 binding transcription factor TEA-DNA binding proteins (TEAD) and downstream malignant behavior-promoting molecules CYR61, EDN1, AREG, and CTGF. Transwell test of the DCLK1-overexpressing cells treated with the Hippo pathway inhibitor Verteporfin was used to examine whether the malignant behavior-promoting ability was blocked. Analysis of changes in the proliferation index of experimental cells used real-time label-free cells. Results: TCGA combined with GTEx data analysis showed that the expressions of DCLK1 and YAP1 molecules in pancreatic cancer tissues were significantly higher than those in adjacent tissues (P<0.05). Moreover, DCLK1was positively correlated with the expressions of many effectors in the Hippo pathway, including LATS1 (r=0.53, P<0.001), LATS2 (r=0.34, P<0.001), MOB1B (r=0.40, P<0.001). In addition, the tissue microarray of pancreatic cancer patients was stained with multicolor fluorescence, indicated that the high expression of DCLK1 in pancreatic cancer patients was accompanied by the up-regulated expression of YAP1. The expression of DCLK1 in pancreatic cancer cell lines was analyzed by the CCLE database. The results showed that the expression of DCLK1 in AsPC-1 and PANC-1 cells was low. Thus, we overexpressed DCLK1 in AsPC-1 and PANC-1 cell lines and found that DCLK1 overexpression in pancreatic cancer cell lines promoted YAP1 expression and accessible to the nucleus. In addition, DCLK1 up-regulated the expression of YAP1 binding transcription factor TEAD and increased the mRNA expression levels of downstream malignant behavior-promoting molecules. Finally, Verteporfin, an inhibitor of the Hippo pathway, could antagonize the cell's malignant behavior-promoting ability mediated by high expression of DCLK1. We found that the number of migrated cells with DCLK1 overexpressing AsPC-1 group was 68.33±7.09, which was significantly higher than 22.00±4.58 of DCLK1 overexpressing cells treated with Verteporfin (P<0.05). Similarly, the migration number of PANC-1 cells overexpressing DCLK1 was 65.66±8.73, which was significantly higher than 37.00±6.00 of the control group and 32.33±9.61 of Hippo pathway inhibitor-treated group (P<0.05). Meanwhile, the number of invasive cells in the DCLK1-overexpressed group was significantly higher than that in the DCLK1 wild-type group cells, while the Verteporfin-treated DCLK1-overexpressed cells showed a significant decrease. In addition, we monitored the cell proliferation index using the real-time cellular analysis (RTCA) assay, and the proliferation index of DCLK1-overexpressed AsPC-1 cells was 0.66±0.04, which was significantly higher than 0.38±0.01 of DCLK1 wild-type AsPC-1 cells (P<0.05) as well as 0.05±0.03 of DCLK1-overexpressed AsPC1 cells treated with Verteporfin (P<0.05). PANC-1 cells showed the same pattern, with a proliferation index of 0.77±0.04 for DCLK1-overexpressed PANC-1 cells, significantly higher than DCLK1-overexpressed PANC1 cells after Verteporfin treatment (0.14±0.05, P<0.05). Conclusion: The expression of DCLK1 is remarkably associated with the Hippo pathway, it promotes the migration, invasion, and proliferation of pancreatic cancer cells by activating the Hippo pathway.
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Affiliation(s)
- R Yan
- Department of Oncology, Beijing Chaoyang Hospital, Capital Medical University, Beijing 100020, China
| | - Z W Liang
- Department of Oncology, Beijing Chaoyang Hospital, Capital Medical University, Beijing 100020, China
| | - H S Liu
- Department of Oncology, Beijing Chaoyang Hospital, Capital Medical University, Beijing 100020, China
| | - Y Ge
- Department of Oncology, Beijing Chaoyang Hospital, Capital Medical University, Beijing 100020, China
| | - G Y An
- Department of Oncology, Beijing Chaoyang Hospital, Capital Medical University, Beijing 100020, China
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10
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Liu H, Ge Y, Xu LB, Ma GT, Ma XJ. [Brucella endocarditis: a case report]. Zhonghua Nei Ke Za Zhi 2023; 62:850-852. [PMID: 37394855 DOI: 10.3760/cma.j.cn112138-20220709-00502] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 07/04/2023]
Affiliation(s)
- H Liu
- Department of Infectious Diseases, Peking Union Medical College Hospital,Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - Y Ge
- Department of Infectious Diseases, Peking Union Medical College Hospital,Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - L B Xu
- Department of Infectious Diseases, Peking Union Medical College Hospital,Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - G T Ma
- Department of Cardial Surgery, Peking Union Medical College Hospital,Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - X J Ma
- Department of Infectious Diseases, Peking Union Medical College Hospital,Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
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11
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Guo FP, Cong Y, Ge Y, Li TS. [Giant hepatic hemangioma manifested as fever of unknown: a case report]. Zhonghua Nei Ke Za Zhi 2023; 62:718-720. [PMID: 37263958 DOI: 10.3760/cma.j.cn112138-20220616-00456] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Affiliation(s)
- F P Guo
- Department of Infectious Diseases, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - Y Cong
- Department of Infectious Diseases, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - Y Ge
- Department of Infectious Diseases, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - T S Li
- Department of Infectious Diseases, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
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12
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Yang P, Wu L, Zhang G, Ge Y, Liu T, Mao H, Zhao J. Cell spheroids culture array with modifiable chemical gradients. Cell Prolif 2023; 56:e13473. [PMID: 37199072 DOI: 10.1111/cpr.13473] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2023] [Revised: 03/24/2023] [Accepted: 03/28/2023] [Indexed: 05/19/2023] Open
Abstract
Cancer cell spheroids have been shown to mimic in vivo tumour microenvironment and are therefore suitable for in vitro drug screening. Microfluidic technology can provide conveniences for spheroid assays such as high-throughput, simplifying manual operation and saving reagent. Here, we propose a concentration gradient generator based on microfluidic technology for cell spheroid culture and assay. The chip consists of upper microchannels and lower microwells. After partitioning HepG2 suspension into the microwells with concave and non-adhesive bottoms, spheroids can spontaneously form. By controlling the fluid replacement and flow in microchannels, the doxorubicin solution is diluted automatically into a series of concentration gradients, which spanning more than one order of magnitude. And then the effect of doxorubicin on spheroids is measured in situ by fluorescent staining. This chip provides a very promising approach to achieve the high-throughput and standardized anti-cancer drug screening in future.
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Affiliation(s)
- Panhui Yang
- Shanghai Institute of Microsystem and Information Technology, CAS, Shanghai, China
| | - Lei Wu
- Shanghai Institute of Microsystem and Information Technology, CAS, Shanghai, China
| | - Guoyuan Zhang
- Shanghai Institute of Microsystem and Information Technology, CAS, Shanghai, China
| | - Yuqing Ge
- Shanghai Institute of Microsystem and Information Technology, CAS, Shanghai, China
| | - Ting Liu
- Shanghai Institute of Microsystem and Information Technology, CAS, Shanghai, China
| | - Hongju Mao
- Shanghai Institute of Microsystem and Information Technology, CAS, Shanghai, China
| | - Jianlong Zhao
- Shanghai Institute of Microsystem and Information Technology, CAS, Shanghai, China
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13
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Yang M, Zhang Q, Ge Y, Tang M, Hu C, Wang Z, Zhang X, Song M, Ruan G, Zhang X, Liu T, Xie H, Zhang H, Zhang K, Li Q, Li X, Liu X, Lin S, Shi H. Prognostic Roles Of Inflammation- And Nutrition-Based Indicators For Female Patients With Cancer. Clin Nutr ESPEN 2023. [DOI: 10.1016/j.clnesp.2022.09.076] [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: 03/28/2023]
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14
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DONG J, Huang L, Li C, Yang X, Wu B, Huang L, Ge Y. WCN23-0171 FRACTIONATED PLASMA SEPARATION AND ADSORPTION INTEGRATED WITH CONTINUOUS VENO-VENOUS HAEMOFILTRATION IN PATIENTS WITH LIVER FAILURE:A SINGLE CETNTRE EXPERIENCE FROM CHINA. Kidney Int Rep 2023. [DOI: 10.1016/j.ekir.2023.02.690] [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: 03/22/2023] Open
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15
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Cheng Q, Sun J, Ge Y, Xue L, Mao H, Zhou L, Zhao J. Bionic Magnetic Sensor Based on the MagR/Cry4 Complex-Configured Graphene Transistor with an Integrated On-Chip Gate. ACS Sens 2023; 8:793-802. [PMID: 36744464 DOI: 10.1021/acssensors.2c02377] [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] [Indexed: 02/07/2023]
Abstract
Magnetic-sensitive proteins are regarded as key factors in animals' precise perception of the geomagnetic field. Accurate feedback on the response of these tiny proteins to magnetic fields remains a challenge. Here, we first propose a real-time accurate magnetic sensor based on the MagR/Cry4 complex-configured graphene transistor with an integrated on-chip gate. A nanometer-thick denatured bovine serum albumin film was used as the bio-interface of graphene electrolyte-gated transistors (EGTs) to immobilize the MagR/Cry4 complex. With the optimization and characterization of this bionic graphene EGT, it could detect magnetic fields in real time with a sensitivity of 1 mT, which is far lower than in earlier research. It was concluded that our MagR/Cry4 complex-configured graphene EGTs with a side-gate held great promise in terms of geomagnetic field detection. Furthermore, the constructed approach in this paper could also be utilized as a general solution for recording the response of magnetically sensitive biomolecules to magnetic fields in real time.
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Affiliation(s)
- Qian Cheng
- State Key Laboratory of Transducer Technology, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai200050, China.,Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing100049, China
| | - Jianfei Sun
- State Key Laboratory of Bioelectronics, Jiangsu Key Laboratory of Biomaterials and Devices, School of Biological Science and Medical Engineering, Southeast University, Nanjing210009,China
| | - Yuqing Ge
- State Key Laboratory of Transducer Technology, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai200050, China
| | - Le Xue
- State Key Laboratory of Bioelectronics, Jiangsu Key Laboratory of Biomaterials and Devices, School of Biological Science and Medical Engineering, Southeast University, Nanjing210009,China
| | - Hongju Mao
- State Key Laboratory of Transducer Technology, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai200050, China
| | - Lin Zhou
- State Key Laboratory of Transducer Technology, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai200050, China
| | - Jianlong Zhao
- State Key Laboratory of Transducer Technology, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai200050, China.,Shanghai Frontier Innovation Research Institute, Shanghai201108, China
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16
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Ge Y, Zhou J, Ma XJ. [Efficacy and safety of daptomycin in the treatment of gram-positive infective endocarditis: a meta-analysis]. Zhonghua Yi Xue Za Zhi 2023; 103:205-214. [PMID: 36649992 DOI: 10.3760/cma.j.cn112137-20220613-01309] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Objective: To assess the efficacy and safety of daptomycin in the treatment of gram-positive infective endocarditis (IE) systematically. Methods: China Biology Medicine Database (CBM), China National Knowledge Internet (CNKI), Wanfang Data, VIP Database, PubMed, Embase, the Cochrane Library, and Web of Science were searched from the time of establishing databases to April 2022 to obtain relevant controlled and uncontrolled studies of daptomycin for gram-positive infective endocarditis, using key search terms ("daptomycin","gram-positive bacterial infections","endocarditis"). We performed literature screening according to inclusion/exclusion criteria, data extraction, and quality assessment, and performed random-effects meta-analyses for pooled results data using R software. Results: A total of 11 studies (including 13 articles) were included. The findings in the three controlled studies showed that in the treatment of staphylococcus aureus endocarditis, there was no statistically significant differences in in-hospital death risk (RR=0.66, 95%CI: 0.24-1.84, P=0.427) and 6-month death risk (RR=1.27, 95%CI: 0.75-2.14, P=0.374) for daptomycin versus anti-staphylococcal penicillin or vancomycin; in the treatment of enterococcal endocarditis, there was no statistically significant difference in death risk (both P>0.05) for daptomycin versus ampicillin combined with ceftriaxone (RR=0.39, 95%CI: 0.06-2.49) and ampicillin or vancomycin plus or minus gentamicin (RR=0.42, 95%CI: 0.05-3.36); and for daptomycin versus ampicillin or vancomycin combined with an aminoglycoside antibiotic, the differences in in-hospital death risk (RR=0.80, 95%CI: 0.11-5.83) and 6-month death risk (RR=0.47, 95%CI: 0.07-3.21) were not statistically significant(both P>0.05). In a cost-effectiveness study, daptomycin as first-line treatment could save the medical cost of 4 037 pounds per patient compared with vancomycin over a longer period of patient treatment. The results of the meta-analysis of uncontrolled studies showed that the mean clinical success rate of daptomycin for left-side endocarditis was 77% (95%CI: 70% to 83%; I2=28%), for MSSA-infective right-side endocarditis was 87% (95%CI: 73%-95%), and for MRSA-infective right-side endocarditis was 78% (95%CI: 38%-95%; I2=49%); while the mortality rate [mean mortality rate for left-side endocarditis was 13% (95%CI: 11%-17%; I2=0); the mortality rate for right-side endocarditis was reported in only 2 studies, 3% and 27%, respectively] or the rate of daptomycin-related adverse events (4%) was within the acceptable ranges for clinical practice. Conclusions: The death risk in the treatment of infective endocarditis with dattomycin is comparable to that of other antibiotics, and the clinical success rate is higher. Some efficacy may be achieved with daptomycin while other treatments are not effective in treating IE.
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Affiliation(s)
- Y Ge
- Infectious Disease Department, Chinese Academy of Medical Sciences Peking Union Medical College Hospital, Beijing 100730, China
| | - J Zhou
- Medical Affairs Department, Chinese Academy of Medical Sciences Peking Union Medical College Hospital, Beijing 100730, China
| | - X J Ma
- Infectious Disease Department, Chinese Academy of Medical Sciences Peking Union Medical College Hospital, Beijing 100730, China
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17
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Li N, Xue L, Mai X, Wang P, Zhu C, Han X, Xie Y, Wang B, Ge Y, Zhang Y, Sun J. Transfection of clMagR/clCry4 imparts MR-T 2 imaging contrast properties to living organisms ( E. coli) in the presence of Fe 3+ by endogenous formation of iron oxide nanoparticles. Front Mol Biosci 2023; 10:1119356. [PMID: 36876047 PMCID: PMC9981785 DOI: 10.3389/fmolb.2023.1119356] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2022] [Accepted: 01/30/2023] [Indexed: 02/19/2023] Open
Abstract
Rapid development of medical imaging, such as cellular tracking, has increased the demand for "live" contrast agents. This study provides the first experimental evidence demonstrating that transfection of the clMagR/clCry4 gene can impart magnetic resonance imaging (MRI) T2-contrast properties to living prokaryotic Escherichia coli (E. coli) in the presence of Fe3+ through the endogenous formation of iron oxide nanoparticles. The transfected clMagR/clCry4 gene markedly promoted uptake of exogenous iron by E. coli, achieving an intracellular co-precipitation condition and formation of iron oxide nanoparticles. This study will stimulate further exploration of the biological applications of clMagR/clCry4 in imaging studies.
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Affiliation(s)
- Nuan Li
- State Key Laboratory of Bioelectronics, School of Biological Sciences and Medical Engineering, Southeast University, Nanjing, China.,Jiangsu Key Laboratory of Biomaterials and Devices, Southeast University, Nanjing, China
| | - Le Xue
- State Key Laboratory of Bioelectronics, School of Biological Sciences and Medical Engineering, Southeast University, Nanjing, China.,Jiangsu Key Laboratory of Biomaterials and Devices, Southeast University, Nanjing, China
| | - Xiaoli Mai
- Department of Radiology, The Affiliated Drum Tower Hospital of Nanjing University, Nanjing, China
| | - Peng Wang
- State Key Laboratory of Bioelectronics, School of Biological Sciences and Medical Engineering, Southeast University, Nanjing, China.,Jiangsu Key Laboratory of Biomaterials and Devices, Southeast University, Nanjing, China.,Department of Sports Medicine and Adult Reconstructive Surgery, The Affiliated Drum Tower Hospital of Nanjing University, Nanjing, China
| | - Chenzhuo Zhu
- Southeast University-Monash University Joint Graduate School, Southeast University, Suzhou, China
| | - Xiaofeng Han
- State Key Laboratory of Bioelectronics, School of Biological Sciences and Medical Engineering, Southeast University, Nanjing, China
| | - Yuanyuan Xie
- Clinical Stem Cell Center, The Affiliated Drum Tower Hospital of Nanjing University, Nanjing, China
| | - Bin Wang
- Clinical Stem Cell Center, The Affiliated Drum Tower Hospital of Nanjing University, Nanjing, China
| | - Yuqing Ge
- State Key Laboratory of Transducer Technology, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai, China
| | - Yewei Zhang
- The Hepatopancreatobiliary Center, The Second Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Jianfei Sun
- State Key Laboratory of Bioelectronics, School of Biological Sciences and Medical Engineering, Southeast University, Nanjing, China.,Jiangsu Key Laboratory of Biomaterials and Devices, Southeast University, Nanjing, China
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18
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Ge Y, Zhou J, Zhang B, Mei D, Xu YC, Ma XJ. [Focusing on patient safety and quality of care, exploring long-term antimicrobial stewardship]. Zhonghua Nei Ke Za Zhi 2022; 61:1091-1094. [PMID: 36207964 DOI: 10.3760/cma.j.cn112138-20220509-00351] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Affiliation(s)
- Y Ge
- Department of Infectious Disease, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - J Zhou
- Department of Medical Record, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - B Zhang
- Pharmacy Department, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - D Mei
- Pharmacy Department, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - Y C Xu
- Laboratory Department, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - X J Ma
- Department of Infectious Disease, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
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19
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Kraay ANM, Gallagher ME, Ge Y, Han P, Baker JM, Koelle K, Handel A, Lopman BA. The role of booster vaccination and ongoing viral evolution in seasonal circulation of SARS-CoV-2. J R Soc Interface 2022; 19:20220477. [PMID: 36067790 PMCID: PMC9448498 DOI: 10.1098/rsif.2022.0477] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Periodic resurgences of COVID-19 in the coming years can be expected, while public health interventions may be able to reduce their intensity. We used a transmission model to assess how the use of booster doses and non-pharmaceutical interventions (NPIs) amid ongoing pathogen evolution might influence future transmission waves. We find that incidence is likely to increase as NPIs relax, with a second seasonally driven surge expected in autumn 2022. However, booster doses can greatly reduce the intensity of both waves and reduce cumulative deaths by 20% between 7 January 2022 and 7 January 2023. Reintroducing NPIs during the autumn as incidence begins to increase again could also be impactful. Combining boosters and NPIs results in a 30% decrease in cumulative deaths, with potential for greater impacts if variant-adapted boosters are used. Reintroducing these NPIs in autumn 2022 as transmission rates increase provides similar benefits to sustaining NPIs indefinitely (307 000 deaths with indefinite NPIs and boosters compared with 304 000 deaths with transient NPIs and boosters). If novel variants with increased transmissibility or immune escape emerge, deaths will be higher, but vaccination and NPIs are expected to remain effective tools to decrease both cumulative and peak health system burden, providing proportionally similar relative impacts.
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Affiliation(s)
- A N M Kraay
- Department of Kinesiology and Community Health, University of Illinois at Urbana-Champaign, Urbana, IL, USA.,Institute for Genomic Biology, University of Illinois at Urbana-Champaign, Urbana, IL, USA
| | - M E Gallagher
- Johns Hopkins University Applied Physics Laboratory, Laurel, MD, USA
| | - Y Ge
- School of Health Professions - Public Health, University of Southern Mississippi, Hattiesburg, MS, USA
| | - P Han
- Rollins School of Public Health, Emory University, Atlanta, GA, USA
| | - J M Baker
- Rollins School of Public Health, Emory University, Atlanta, GA, USA
| | - K Koelle
- Department of Biology, Emory University, Atlanta, GA, USA
| | - A Handel
- Department of Epidemiology & Biostatistics, University of Georgia, Athens, GA, USA.,Center for the Ecology of Infectious Diseases, University of Georgia, Athens, GA, USA
| | - B A Lopman
- Rollins School of Public Health, Emory University, Atlanta, GA, USA
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20
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Dong S, Zhou M, Zhu J, Wang Q, Ge Y, Cheng R. The complete chloroplast genomes of Tetrastigma hemsleyanum (Vitaceae) from different regions of China: molecular structure, comparative analysis and development of DNA barcodes for its geographical origin discrimination. BMC Genomics 2022; 23:620. [PMID: 36028808 PMCID: PMC9412808 DOI: 10.1186/s12864-022-08755-7] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2022] [Accepted: 07/07/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Tetrastigma hemsleyanum is a valuable traditional Chinese medicinal plant widely distributed in the subtropical areas of China. It belongs to the Cayratieae tribe, family Vitaceae, and exhibited significant anti-tumor and anti-inflammatory activities. However, obvious differences were observed on the quality of T. hemsleyanum root from different regions, requiring the discrimination strategy for the geographical origins. RESULT This study characterized five complete chloroplast (cp) genomes of T. hemsleynum samples from different regions, and conducted a comparative analysis with other representing species from family Vitaceae to reveal the structural variations, informative markers and phylogenetic relationships. The sequenced cp genomes of T. hemsleyanum exhibited a conserved quadripartite structure with full length ranging from 160,124 bp of Jiangxi Province to 160,618 bp of Zhejiang Province. We identified 112 unique genes (80 protein-coding, 28 tRNA and 4 rRNA genes) in the cp genomes of T. hemsleyanum with highly similar gene order, content and structure. The IR contraction/expansion events occurred on the junctions of ycf1, rps19 and rpl2 genes with different degrees, causing the differences of genome sizes in T. hemsleyanum and Vitaceae plants. The number of SSR markers discovered in T. hemsleyanum was 56-57, exhibiting multiple differences among the five geographic groups. Phylogenetic analysis based on conserved cp genome proteins strongly grouped the five T. hemsleyanum species into one clade, showing a sister relationship with T. planicaule. Comparative analysis of the cp genomes from T. hemsleyanum and Vitaceae revealed five highly variable spacers, including 4 intergenic regions and one protein-coding gene (ycf1). Furthermore, five mutational hotspots were observed among T. hemsleyanum cp genomes from different regions, providing data for designing DNA barcodes trnL and trnN. The combination of molecular markers of trnL and trnN clustered the T. hemsleyanum samples from different regions into four groups, thus successfully separating specimens of Sichuan and Zhejiang from other areas. CONCLUSION Our study obtained the chloroplast genomes of T. hemsleyanum from different regions, and provided a potential molecular tracing tool for determining the geographical origins of T. hemsleyanum, as well as important insights into the molecular identification approach and and phylogeny in Tetrastigma genus and Vitaceae family.
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Affiliation(s)
- Shujie Dong
- The First Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, China.,School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou, China
| | - Manjia Zhou
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou, China
| | - Jinxing Zhu
- Bureau of Agricultural and Rural Affairs of Suichang, Suichang, China
| | - Qirui Wang
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou, China
| | - Yuqing Ge
- The First Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, China.
| | - Rubin Cheng
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou, China. .,Academy of Chinese Medical Science, Zhejiang Chinese Medical University, Hangzhou, China.
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21
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Bi XJ, Lv YQ, Yang XH, Ge Y, Han H, Feng JS, Zhang M, Chen L, Xu MZ, Guan FY. A New Berberine Preparation Protects Pancreatic Islet Cells from Apoptosis Mediated by Inhibition of Phospholipase A2/p38 MAPK Pathway. Bull Exp Biol Med 2022; 173:346-353. [DOI: 10.1007/s10517-022-05547-7] [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: 06/08/2021] [Indexed: 11/30/2022]
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22
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Tian T, Ho Y, Chen C, Sun H, Hui J, Yang P, Ge Y, Liu T, Yang J, Mao H. A 3D bio-printed spheroids based perfusion in vitro liver on chip for drug toxicity assays. CHINESE CHEM LETT 2022. [DOI: 10.1016/j.cclet.2021.11.029] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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23
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Lillis A, Beverly S, Collins S, O’Driscoll M, Marsh E, Matthews J, Donovan J, Banya W, Madge S, Ukor EF, Felton I, Jones A, Belkarty B, Kapila D, Ge Y, Bowd G, Joshi N, Wahed M, Patel K, Simmonds N. P201 Bowel screening for cancer in pre-transplant people with cystic fibrosis and the accuracy of faecal immunochemical testing. J Cyst Fibros 2022. [DOI: 10.1016/s1569-1993(22)00530-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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24
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Luo J, Gong Q, Zhou M, Liu Q, Cheng R, Ge Y. Complete chloroplast genome of the medicinal herb Veronicastrum axillare (Sieb. et Zucc.) Yamazaki and the phylogenetic relationship analysis within the tribe Veroniceae. Mitochondrial DNA B Resour 2022; 7:783-785. [PMID: 35558172 PMCID: PMC9090389 DOI: 10.1080/23802359.2022.2071651] [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] [Indexed: 11/29/2022] Open
Abstract
Veronicastrum axillare (Sieb. et Zucc.) Yamazaki is a traditional medical plant with versatile biological activities. Here, we reported the complete chloroplast genome sequence of V. axillare with a total length of 152,691 bp, containing two IR regions of 25,765 bp each, an LSC region of 83,559 bp, and an SSC region of 17,602 bp. The genome encodes 131 genes, including 85 protein-coding genes, 37 tRNAs, eight rRNAs, and one pseudogene (ycf1). The overall GC content is 38.3%, with the highest content of 43.31% in IR region. Comparative analysis revealed 4 potential hotspots among V. axillare and other Veroniceae plants, providing potential markers for population investigations in the tribe Veroniceae. A total of 56 simple sequence repeats were identified in V. axillare. Phylogenetic analysis indicated a sister relationship between V. axillare and V. sibiricum, suggesting a close genetic relationship between the two Veronicastrum species. Our results provide basic genetic resources for investigating the evolutionary status of V. axillare within the tribe Veroniceae.
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Affiliation(s)
- Jiawen Luo
- The First Affiliated Hospital, Zhejiang Chinese Medical University, Hangzhou, China.,School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou, China
| | - Qiuyi Gong
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou, China
| | - Manjia Zhou
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou, China
| | - Qiang Liu
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou, China
| | - Rubin Cheng
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou, China.,Academy of Chinese Medical Science, Zhejiang Chinese Medical University
| | - Yuqing Ge
- The First Affiliated Hospital, Zhejiang Chinese Medical University, Hangzhou, China
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25
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Ge Y, Dennis LM. 727 BOOSTING BONE HEALTH: IMPROVING JUNIOR DOCTORS’ CONFIDENCE IN ASSESSING AND MANAGING FRAGILITY FRACTURES. Age Ageing 2022. [DOI: 10.1093/ageing/afac034.727] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Introduction
Fragility fractures are a major disease burden in the UK. With an ageing population and number of fragility fractures predicted to double in 50 years, prevention in this high-risk population needs to be addressed. This audit aimed to examine the assessment of fracture risk in patients presenting with fragility fractures and improve awareness amongst trainee doctors through education.
Methods
A retrospective study was conducted on patients over 65 years admitted with fragility fractures, excluding neck of femur, from January to March 2021 (n = 51). Data was collected on Fracture Risk Assessment Tool (FRAX) scores, dual energy X-ray absorptiometry (DEXA) scans, and risk factors including body mass index (BMI), previous fragility fracture, smoking, alcohol intake, and serum calcium and vitamin D. A teaching seminar for junior doctors was delivered to increase confidence in assessing and managing fragility fractures.
Results
The mean age of patients was 79, with most common presentations being proximal humerus, distal femur and ankle fractures. 46% of patients had a previous fragility fracture. Smoking and alcohol history were documented in 72% and 60% of patients respectively, and 29% had BMIs calculated. 68% had calcium and 45% had vitamin D checked. DEXA scans occurred in 12%, all of whom had osteopenia or osteoporosis. Over half of patients were already on bone protection and 28% were subsequently started on bisphosphonates. A teaching session was delivered to junior doctors (n = 10), leading to improved confidence in assessing fracture risk by 30%, and improved confidence in managing fragility fractures by 35%. Knowledge of FRAX score increased from 62% to 100%.
Conclusion
A significant proportion of the over-65 population are likely to present with fragility fractures. Improving awareness and confidence amongst junior doctors can lead to identification of risk factors and help better prevent and manage fragility fractures in this high-risk population.
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Affiliation(s)
- Y Ge
- Care of the Elderly Department, Chelsea and Westminster Hospital NHS Foundation Trust
| | - L M Dennis
- Care of the Elderly Department, Chelsea and Westminster Hospital NHS Foundation Trust
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QIN Z, Liu K, Xu X, Li T, Ge Y, Wu B, Xing C, Mao H. POS-044 INCIDENCE, PREDICTORS, AND CLINICAL OUTCOME OF ACUTE KIDNEY INJURY IN PATIENTS TREATED WITH PD-1 INHIBITORS: A SINGLE CENTER OBSERVATIONAL STUDY. Kidney Int Rep 2022. [DOI: 10.1016/j.ekir.2022.01.052] [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: 11/27/2022] Open
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Fan W, Xiong Q, Ge Y, liu T, Zeng S, Zhao J. Identifying the grade of bladder cancer cells using microfluidic chips based on impedance. Analyst 2022; 147:1722-1729. [DOI: 10.1039/d2an00026a] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Bladder cancer diagnosis is made by microfluidic chip based-on impedance analysis.
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Affiliation(s)
- Weihua Fan
- State Key Laboratory of Transducer Technology, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai 200050, Shanghai, P. R. China
- Guangzhou Institute of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, Guangzhou, P. R. China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, Beijing, P. R. China
| | - Qiao Xiong
- Department of Urology, Changhai Hospital, Naval Medical University, 200433, Shanghai, P. R. China
| | - Yuqing Ge
- State Key Laboratory of Transducer Technology, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai 200050, Shanghai, P. R. China
- Institute for Stem Cell and Regeneration, Chinese Academy of Sciences, Beijing, 100101, P. R. China
| | - Ting liu
- State Key Laboratory of Transducer Technology, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai 200050, Shanghai, P. R. China
| | - Shuxiong Zeng
- Department of Urology, Changhai Hospital, Naval Medical University, 200433, Shanghai, P. R. China
| | - Jianlong Zhao
- State Key Laboratory of Transducer Technology, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai 200050, Shanghai, P. R. China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, Beijing, P. R. China
- Institute for Stem Cell and Regeneration, Chinese Academy of Sciences, Beijing, 100101, P. R. China
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Li R, Peng H, Xue T, Li J, Ge Y, Wang G, Feng F. Prediction and verification of survival in patients with non-small-cell lung cancer based on an integrated radiomics nomogram. Clin Radiol 2021; 77:e222-e230. [PMID: 34974912 DOI: 10.1016/j.crad.2021.12.002] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2021] [Accepted: 12/02/2021] [Indexed: 12/12/2022]
Abstract
AIM To develop and validate a nomogram to predict 1-, 2-, and 5-year survival in patients with non-small-cell lung cancer (NSCLC) by combining optimised radiomics features, clinicopathological factors, and conventional image features extracted from three-dimensional (3D) computed tomography (CT) images. MATERIALS AND METHODS A total of 172 patients with NSCLC were selected to construct the model, and 74 and 72 patients were selected for internal validation and external testing, respectively. A total of 828 radiomics features were extracted from each patient's 3D CT images. Univariable Cox regression and least absolute shrinkage and selection operator (LASSO) regression were used to select features and generate a radiomics signature (radscore). The performance of the nomogram was evaluated by calibration curves, clinical practicability, and the c-index. Kaplan-Meier (KM) analysis was used to compare the overall survival (OS) between the two subgroups. RESULT The radiomics features of the NSCLC patients correlated significantly with survival time. The c-indexes of the nomogram in the training cohort, internal validation cohort, and external test cohort were 0.670, 0.658, and 0.660, respectively. The calibration curves showed that the predicted survival time was close to the actual survival time. Decision curve analysis shows that the nomogram could be useful in the clinic. According to KM analysis, the 1-, 2- and 5-year survival rates of the low-risk group were higher than those of the high-risk group. CONCLUSION The nomogram, combining the radscore, clinicopathological factors, and conventional CT parameters, can improve the accuracy of survival prediction in patients with NSCLC.
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Affiliation(s)
- R Li
- Department of Radiology, Affiliated Tumor Hospital of Nantong University, Nantong 226361, China
| | - H Peng
- Department of Radiology, Affiliated Tumor Hospital of Nantong University, Nantong 226361, China
| | - T Xue
- Department of Radiology, Affiliated Tumor Hospital of Nantong University, Nantong 226361, China
| | - J Li
- Department of Radiology, Affiliated Tumor Hospital of Nantong University, Nantong 226361, China
| | - Y Ge
- GE Healthcare China, Shanghai 210000, China
| | - G Wang
- Department of Radiology, Affiliated Hospital of Nantong University, Nantong University, Jiangsu 226001, PR China.
| | - F Feng
- Department of Radiology, Affiliated Tumor Hospital of Nantong University, Nantong 226361, China.
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Shan X, Han D, Ge Y, Zhang H, Lu R. Clinical outcomes of keratinized mucosa augmentation in jaws reconstructed with fibula or iliac bone flaps. Int J Oral Maxillofac Surg 2021; 51:949-956. [PMID: 34924272 DOI: 10.1016/j.ijom.2021.11.013] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2021] [Revised: 08/25/2021] [Accepted: 11/23/2021] [Indexed: 10/19/2022]
Abstract
This prospective study was undertaken to evaluate the treatment outcomes of keratinized mucosa augmentation (KMA) on the buccal and palatal/lingual sides of implants in jaws reconstructed after oncological surgery. Forty-two implants in 12 patients whose jaws had been reconstructed with a fibula or iliac bone flap were included. KMA was performed at 3 months after implant placement; this included an apically displaced partial-thickness flap and a free gingival graft (FGG) around the implants to increase the keratinized mucosa width (KMW). Patients were followed up for at least 6 months post-surgery. KMW, shrinkage, and patient pain and discomfort measured on a visual analogue scale were analysed. A histological analysis was performed of tissue epithelium from two patients. The results showed that KMW was >2 mm on both the buccal and palatal/lingual sides during follow-up. Before surgery, histological analysis showed epithelium with no epithelial spikes; normal keratinized epithelial spikes were observed at 8 weeks after KMA. Greater KMW was observed around implants in reconstructed maxillae than around those in reconstructed mandibles (P < 0.001). Patients felt more pain at the donor site than at the recipient site during the first 3 days post-surgery. KMA with FGG was predictable in reconstructed jaws and may help maintain the long-term stability of implants.
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Affiliation(s)
- X Shan
- Department of Oral and Maxillofacial Surgery, Peking University School and Hospital of Stomatology, National Clinical Research Centre for Oral Diseases and National Engineering Laboratory for Digital and Material Technology of Stomatology and Beijing Key Laboratory of Digital Stomatology, Beijing, PR China
| | - D Han
- Department of Prosthodontics, Peking University School and Hospital of Stomatology, Beijing, PR China
| | - Y Ge
- Department of Prosthodontics, Peking University School and Hospital of Stomatology, Beijing, PR China
| | - H Zhang
- Department of Periodontology, Peking University School and Hospital of Stomatology, Beijing, PR China
| | - R Lu
- Department of Periodontology, Peking University School and Hospital of Stomatology, Beijing, PR China.
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Dong S, Ying Z, Yu S, Wang Q, Liao G, Ge Y, Cheng R. Complete chloroplast genome of Stephania tetrandra (Menispermaceae) from Zhejiang Province: insights into molecular structures, comparative genome analysis, mutational hotspots and phylogenetic relationships. BMC Genomics 2021; 22:880. [PMID: 34872502 PMCID: PMC8647421 DOI: 10.1186/s12864-021-08193-x] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [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: 12/19/2020] [Accepted: 11/16/2021] [Indexed: 01/14/2023] Open
Abstract
BACKGROUND The Stephania tetrandra S. Moore (S. tetrandra) is a medicinal plant belonging to the family Menispermaceae that has high medicinal value and is well worth doing further exploration. The wild resources of S. tetrandra were widely distributed in tropical and subtropical regions of China, generating potential genetic diversity and unique population structures. The geographical origin of S. tetrandra is an important factor influencing its quality and price in the market. In addition, the species relationship within Stephania genus still remains uncertain due to high morphological similarity and low support values of molecular analysis approach. The complete chloroplast (cp) genome data has become a promising strategy to determine geographical origin and understand species evolution for closely related plant species. Herein, we sequenced the complete cp genome of S. tetrandra from Zhejiang Province and conducted a comparative analysis within Stephania plants to reveal the structural variations, informative markers and phylogenetic relationship of Stephania species. RESULTS The cp genome of S. tetrandra voucher ZJ was 157,725 bp, consisting of a large single copy region (89,468 bp), a small single copy region (19,685 bp) and a pair of inverted repeat regions (24,286 bp each). A total of 134 genes were identified in the cp genome of S. tetrandra, including 87 protein-coding genes, 8 rRNA genes, 37 tRNA genes and 2 pseudogene copies (ycf1 and rps19). The gene order and GC content were highly consistent in the Stephania species according to the comparative analysis results, with the highest RSCU value in arginine (1.79) and lowest RSCU value in serine of S. tetrandra, respectively. A total of 90 SSRs have been identified in the cp genome of S. tetrandra, where repeats that consisting of A or T bases were much higher than that of G or C bases. In addition, 92 potential RNA editing sites were identified in 25 protein-coding genes, with the most predicted RNA editing sites in ndhB gene. The variations on length and expansion extent to the junction of ycf1 gene were observed between S. tetrandra vouchers from different regions, indicating potential markers for further geographical origin discrimination. Moreover, the values of transition to transversion ratio (Ts/Tv) in the Stephania species were significantly higher than 1 using Pericampylus glaucus as reference. Comparative analysis of the Stephania cp genomes revealed 5 highly variable regions, including 3 intergenic regions (trnH-psbA, trnD-trnY, trnP) and two protein coding genes (rps16 and ndhA). The identified mutational hotspots of Stephania plants exhibited multiple SNP sites and Gaps, as well as different Ka/Ks ratio values. In addition, five pairs of specific primers targeting the divergence regions were accordingly designed, which could be utilized as potential molecular markers for species identification, population genetic and phylogenetic analysis in Stephania species. Phylogenetic tree analysis based on the conserved chloroplast protein coding genes indicated a sister relationship between S. tetrandra and the monophyletic group of S. japonica and S. kwangsiensis with high support values, suggesting a close genetic relationship within Stephania plants. However, two S. tetrandra vouches from different regions failed to cluster into one clade, confirming the occurrences of genetic diversities and requiring further investigation for geographical tracing strategy. CONCLUSIONS Overall, we provided comprehensive and detailed information on the complete chloroplast genome and identified nucleotide diversity hotspots of Stephania species. The obtained genetic resource of S. tetrandra from Zhejiang Province would facilitate future studies in DNA barcode, species discrimination, the intraspecific and interspecific variability and the phylogenetic relationships of Stephania plants.
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Affiliation(s)
- Shujie Dong
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, 548 Binwen Road, Hangzhou, Zhejiang Province, People's Republic of China
| | - Zhiqi Ying
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, 548 Binwen Road, Hangzhou, Zhejiang Province, People's Republic of China
| | - Shuisheng Yu
- The Administration Bureau of Zhejiang Jiulongshan National Nature Reserve, Suichang, Zhejiang Province, People's Republic of China
| | - Qirui Wang
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, 548 Binwen Road, Hangzhou, Zhejiang Province, People's Republic of China
| | - Guanghui Liao
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, 548 Binwen Road, Hangzhou, Zhejiang Province, People's Republic of China
| | - Yuqing Ge
- The First Affiliated Hospital of Zhejiang Chinese Medical University, 54 Youdian Road, Hangzhou, Zhejiang Province, People's Republic of China.
| | - Rubin Cheng
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, 548 Binwen Road, Hangzhou, Zhejiang Province, People's Republic of China.
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Tang M, Zhang Q, Ge Y, Shi H. Near-term prognostic impact of integrated muscle mass and function in upper gastrointestinal cancer:results from a multicenter cohort study. Clin Nutr ESPEN 2021. [DOI: 10.1016/j.clnesp.2021.09.077] [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: 11/27/2022]
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Cheng R, Huang Y, Fang Y, Wang Q, Yan M, Ge Y. Cryptotanshinone enhances the efficacy of Bcr-Abl tyrosine kinase inhibitors via inhibiting STAT3 and eIF4E signalling pathways in chronic myeloid leukaemia. Pharm Biol 2021; 59:893-903. [PMID: 34214017 PMCID: PMC8259876 DOI: 10.1080/13880209.2021.1944224] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/17/2020] [Accepted: 06/12/2021] [Indexed: 05/23/2023]
Abstract
CONTEXT A portion of patients with chronic myeloid leukaemia (CML) develop resistance to the Bcr-Abl tyrosine kinase inhibitors (TKIs), limiting the clinical applications. Previous results have demonstrated the synergistic effects between cryptotanshinone (CPT) and imatinib on apoptosis of CML cells in vitro. OBJECTIVE To determine the antileukemia effects of CPT and TKIs on the resistant CML cells, and further investigate the effect of combined treatment of CPT and imatinib on tumour growth and apoptosis in the xenograft model and clarify its regulatory mechanisms. MATERIALS AND METHODS The combination effects of CPT and second-generation TKIs were evaluated in resistant CML cells K562-R. CPT and imatinib were orally administered once daily for 21 days on K562-R xenografts in nude mice (6 per group). Tumour proliferation and apoptosis were examined by Ki-67, PCNA and TUNEL staining. The expression levels of apoptotic markers and activities of STAT3 and eIF4E pathways were determined via immunohistochemistry staining and western blotting analysis. RESULTS CPT significantly enhanced the antiproliferative effects of TKIs, via triggering cleavages of caspase proteins, and inhibiting activities of STAT3 and eIF4E pathways. The administration of CPT and imatinib dramatically inhibited the tumour growth of xenografts and achieved a suppression of 60.2%, which is 2.6-fold higher than that of single imatinib group. Furthermore, CPT and imatinib increased the apoptotic rates and markedly decreased the phosphorylation levels of STAT3 and eIF4E. CONCLUSIONS Our results demonstrated that CPT could significantly enhance the antileukemia efficacy of TKIs, suggesting the therapeutic potential of CPT to overcome CML resistance.
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Affiliation(s)
- Rubin Cheng
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou, China
| | - Yilan Huang
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou, China
| | - Yun Fang
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou, China
| | - Qirui Wang
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou, China
| | - Meixiu Yan
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou, China
| | - Yuqing Ge
- The First Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, China
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Li X, Wu Q, Wu Q, Wang C, Sheng Y, Wang W, Stephens H, Yin F, Ge Y. Collect Insights of an H&N IMRT Planning AI Agent Through Analyzing Relationships Between Fluence Map Prediction Error and the Corresponding Dosimetric Impacts. Int J Radiat Oncol Biol Phys 2021. [DOI: 10.1016/j.ijrobp.2021.07.479] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Hito M, Wang W, Stephens H, Xie Y, Li R, Yin F, Ge Y, Wu Q, Wu Q, Sheng Y. Assessing the Robustness and Performance of Artificial Intelligence Powered Planning Tools in Clinical Settings. Int J Radiat Oncol Biol Phys 2021. [DOI: 10.1016/j.ijrobp.2021.07.473] [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: 11/27/2022]
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Zhang X, Wang H, Lou L, Li Q, Zhang L, Ge Y. Transcript expression profiling of fibromelanosis-related genes in black-bone chickens. Br Poult Sci 2021; 63:133-141. [PMID: 34402346 DOI: 10.1080/00071668.2021.1966750] [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] [Indexed: 10/20/2022]
Abstract
1. The aim of the present study was to identify differentially expressed genes (DEGs) and metabolic pathways involved in this phenotype. Fibromelanosis is the most striking feature of black-bone chickens, such as the Silkie and Dongxiang indigenous breeds. Due to the accumulation of eumelanin in connective tissues, fibromelanosis manifests as black colouration of the skin, muscles, gut, and periosteum. Studies on fibromelanosis can provide useful information pertaining to human diseases and offer commercial value to the poultry industry. However, the genetic basis of fibromelanosis remains unclear.2. Digital gene expression analysis was performed on black and white skin samples collected from the HW1 black-bone chicken line to detect differences in genome-wide expression patterns. A total of >30 billion bp were sequenced, and 2,707,926,466 bp and 2,948,782,964 bp of clean data obtained for creation of libraries for black and white skin, respectively. In total, 252 DEGs from 15,508 mapped genes were identified with 83 up-regulated in white skin and 169 up-regulated in black skin.3. Gene ontology analysis highlighted that genes from the extracellular region and associated components were abundant among the DEGs. Pathway analysis revealed that many DEGs were linked to amino acid metabolism and the immune system. qRT-PCR validation using 14 genes showed good conformity with the sequence analysis of fibromelanosis-related genes.4. The results showed that L-dopachrometautomerase precursor (DCT), tyrosine aminotransferase (TAT), 4-hydroxyphenylpyruvate dioxygenase (HPD) from the tyrosine metabolism pathway, coagulation factor II (F2), fibrinogen beta chain (FGB), plasminogen (PLG) and complement component 7 (C7) from the complement and coagulation cascades were important genes in the fibromelanosis process in black-bone chickens. These candidate genes require further correlation analysis and functional verification.
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Affiliation(s)
- X Zhang
- Institute of Animal Husbandry, Hangzhou Academy of Agricultural Sciences, Hangzhou, China
| | - H Wang
- Institute of Animal Husbandry, Hangzhou Academy of Agricultural Sciences, Hangzhou, China
| | - L Lou
- Institute of Animal Husbandry, Hangzhou Academy of Agricultural Sciences, Hangzhou, China
| | - Q Li
- Institute of Animal Husbandry, Hangzhou Academy of Agricultural Sciences, Hangzhou, China
| | - L Zhang
- Institute of Animal Husbandry, Hangzhou Academy of Agricultural Sciences, Hangzhou, China
| | - Y Ge
- Institute of Animal Husbandry, Hangzhou Academy of Agricultural Sciences, Hangzhou, China
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Wu W, Xuan Y, Ge Y, Mu S, Hu C, Fan R. Plasma miR-146a and miR-365 expression and inflammatory factors in patients with osteoarthritis. Malays J Pathol 2021; 43:311-317. [PMID: 34448795] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
OBJECTIVE To investigate the expression levels of micro-ribonucleic acid (miR)-146a and miR-365 in the plasma of osteoarthritis (OA) patients, to study their expression with the inflammatory factors and the severity of disease in patients and to analyse their diagnostic significance. MATERIALS AND METHODS A total of 42 OA patients diagnosed with OA and treated in our hospital from January 2017 to January 2018 were selected as the subjects, and 28 healthy people were enrolled as controls. The expressions of interleukin-1 beta (IL-1β) and IL-6 in the plasma of OA patients were detected via immunohistochemical staining. Moreover, the knee joint function of OA patients was evaluated by Lysholm score, Western Ontario and McMaster Universities (WOMAC) score and Visual Analogue Scale (VAS) score. The expression levels of plasma miR-146a and miR-365 in OA patients were measured through RT-PCR. Besides, the significance of the expression levels of miR-146a and miR-365 for the diagnosis of OA was analysed by ROC curves. RESULTS As compared with healthy people, OA patients had elevated expression levels of plasma IL-1β and IL-6, decreased Lysholm score, increased WOMAC and VAS scores as well as significantly up-regulated levels of plasma miR-146a and miR-365, which were of important significance for diagnosis. CONCLUSION The expression levels of plasma miR-146a, miR-365 and inflammatory factors are notably higher, the disease is more severe, and the function of knee joint movement is weaker in OA patients than those in healthy controls. It can be concluded that the levels of both miR-146a and miR-365 can serve as biomarkers of OA diagnosis.
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Affiliation(s)
- W Wu
- The 904th Hospital of Joint Logistic Support Force, Department of Orthopedic, PLA, China, 214000.
| | - Y Xuan
- The second People's Hospital of Hefei, Department of Orthopedic, China, 230011
| | - Y Ge
- The 904th Hospital of Joint Logistic Support Force, Department of Orthopedic, PLA, China, 214000
| | - S Mu
- The 904th Hospital of Joint Logistic Support Force, Department of Orthopedic, PLA, China, 214000
| | - C Hu
- The 904th Hospital of Joint Logistic Support Force, Department of Orthopedic, PLA, China, 214000
| | - R Fan
- The 904th Hospital of Joint Logistic Support Force, Department of Orthopedic, PLA, China, 214000
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Ma HM, Liu Y, Ge Y, Huo Z, Ma XJ, Li TS. [Lobular panniculitis in a patient with Lyme borreliosis]. Zhonghua Nei Ke Za Zhi 2021; 60:764-767. [PMID: 34304455 DOI: 10.3760/cma.j.cn112138-20201115-00940] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- H M Ma
- Department of Infectious Diseases, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - Y Liu
- Department of Infectious Diseases, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - Y Ge
- Department of Infectious Diseases, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - Z Huo
- Department of Pathology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - X J Ma
- Department of Infectious Diseases, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - T S Li
- Department of Infectious Diseases, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
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Peng X, Xu Q, Chen Y, Zhou C, Ge Y, Li N. An eye tracking study: positive emotional interface design facilitates learning outcomes in multimedia learning? Int J Educ Technol High Educ 2021; 18:40. [PMID: 34778532 PMCID: PMC8289450 DOI: 10.1186/s41239-021-00274-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/25/2021] [Accepted: 05/12/2021] [Indexed: 06/13/2023]
Abstract
Unlike the other studies on emotional design in multimedia learning, the present study differentiated the two confounding variables of visual interface design and structured content to manipulate the instructional material. Specifically, we investigated how the visual aesthetics of positive emotional interface design influenced learners' cognitive processes, emotional valences, learning outcomes, and subjective experience. Eighty-one college students took part in the experimental study. They were divided into the three experimental groups: a holistic layout of positive emotional design group (HPED), a local layout of positive emotional design group (LPED), and a neutral emotional design group (ND). By using a mixed approach of questionnaires and eye tracking, we further explored the differences among the three groups in cognitive processing, learning outcomes, and subjective experience. Results indicated that the LPED group invested higher cognitive effort, put more attentional focus in the relevant knowledge content module, and achieved better learning performance (i.e., retention and transfer tests) in contrast to the HPED group and the ND group. However, no significant difference in dynamic changes of emotional state among the three groups was detected. The analytical results can provide researchers and practitioners with valuable insights into the positive emotional design of multimedia learning, which allows for the facilitation of mental engagement, learning outcomes and subjective perception.
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Affiliation(s)
- Xian Peng
- National Engineering Laboratory for Educational Big Data, Central China Normal University, Wuhan, 430079 Hubei China
- Learning and Cognitive Science Laboratory, College of Education, Zhejiang University, Hangzhou, 310028 Zhejiang China
| | - Qinmei Xu
- Learning and Cognitive Science Laboratory, College of Education, Zhejiang University, Hangzhou, 310028 Zhejiang China
| | - Yufan Chen
- Learning and Cognitive Science Laboratory, College of Education, Zhejiang University, Hangzhou, 310028 Zhejiang China
| | - Chenying Zhou
- Learning and Cognitive Science Laboratory, College of Education, Zhejiang University, Hangzhou, 310028 Zhejiang China
| | - Yuqing Ge
- Learning and Cognitive Science Laboratory, College of Education, Zhejiang University, Hangzhou, 310028 Zhejiang China
| | - Na Li
- Learning and Cognitive Science Laboratory, College of Education, Zhejiang University, Hangzhou, 310028 Zhejiang China
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Musa TH, Li W, He Y, Ni Q, Chu J, Ge Y, Wei P. Factors associated with Scrub Typhus infection: A case-control study from Luhe, China. Med J Malaysia 2021; 76:474-479. [PMID: 34305107] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
INTRODUCTION Scrub typhus (ST) is an acute febrile infection and remains a significant health problem globally. This study aimed to determine the factors associated with ST infection in Luhe District, China. MATERIAL AND METHODS The case-control study was conducted among 116 cases identified through passive surveillance systems over three years.The control subjects were 232 living in the same village for more than six months without any history of ST infection were selected by matching to the age (within 5-years) and identified through active surveillance. Statistical analyses were performed using SPSS v. 25.0 for Windows (IBM SPSS, Chicago, IL, USA). RESULTS The mean age of confirmed persons was 58.1(SD=10.15) years, while control subjects were 56.14 (11.57).There is no significant difference in gender, age, education, and occupations between case and control. Farmers had the most significant number of cases among occupational groups. The three factors that were significantly associated with an increased odds of having ST infection are bundling or moving waste straw (OR: 1.94, 95%CI; 0.99,381), morning exercise in the park or field (OR: 4.74 95%CI; 1.19, 18.95), and working as labourer in the vegetable field (OR:1.02, 95%CI:1.02,3.19). CONCLUSIONS Our findings suggested establishing a prevention and control strategy for these groups to lower ST development risk.
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Affiliation(s)
- T H Musa
- Southeast University, School of Public Health, Ministry of Education and Department Epidemiology and Health Statistics, Key Laboratory of Environmental Medicine Engineering, Nanjing, Jiangsu Province, China.
| | - W Li
- Southeast University, School of Public Health, Ministry of Education and Department Epidemiology and Health Statistics, Key Laboratory of Environmental Medicine Engineering, Nanjing, Jiangsu Province, China
| | - Y He
- Southeast University, School of Public Health, Ministry of Education and Department Epidemiology and Health Statistics, Key Laboratory of Environmental Medicine Engineering, Nanjing, Jiangsu Province, China
| | - Q Ni
- Southeast University, School of Public Health, Ministry of Education and Department Epidemiology and Health Statistics, Key Laboratory of Environmental Medicine Engineering, Nanjing, Jiangsu Province, China
| | - J Chu
- Southeast University, School of Public Health, Ministry of Education and Department Epidemiology and Health Statistics, Key Laboratory of Environmental Medicine Engineering, Nanjing, Jiangsu Province, China
| | - Y Ge
- Southeast University, School of Public Health, Ministry of Education and Department Epidemiology and Health Statistics, Key Laboratory of Environmental Medicine Engineering, Nanjing, Jiangsu Province, China
| | - P Wei
- Southeast University, School of Public Health, Ministry of Education and Department Epidemiology and Health Statistics, Key Laboratory of Environmental Medicine Engineering, Nanjing, Jiangsu Province, China.
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Liu H, Li TS, Yang XL, Fan HW, Zhou BT, Ge Y. [Diagnosis and treatment of a patient with fever, rash, and lymphadenopathy]. Zhonghua Nei Ke Za Zhi 2021; 60:669-670. [PMID: 34619846 DOI: 10.3760/cma.j.cn112138-20200828-00778] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Affiliation(s)
- H Liu
- Department of Infectious Disease, Peking Union Medical College Hospital, Peking Union Medical College,Chinese Academy of Medical Sciences, Beijing 100730,China
| | - T S Li
- Department of Infectious Disease, Peking Union Medical College Hospital, Peking Union Medical College,Chinese Academy of Medical Sciences, Beijing 100730,China
| | - X L Yang
- Department of Infectious Disease, Peking Union Medical College Hospital, Peking Union Medical College,Chinese Academy of Medical Sciences, Beijing 100730,China
| | - H W Fan
- Department of Infectious Disease, Peking Union Medical College Hospital, Peking Union Medical College,Chinese Academy of Medical Sciences, Beijing 100730,China
| | - B T Zhou
- Department of Infectious Disease, Peking Union Medical College Hospital, Peking Union Medical College,Chinese Academy of Medical Sciences, Beijing 100730,China
| | - Y Ge
- Department of Infectious Disease, Peking Union Medical College Hospital, Peking Union Medical College,Chinese Academy of Medical Sciences, Beijing 100730,China
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Sun S, Zhu L, Lai M, Cheng R, Ge Y. Tanshinone I inhibited growth of human chronic myeloid leukemia cells via JNK/ERK mediated apoptotic pathways. ACTA ACUST UNITED AC 2021; 54:e10685. [PMID: 34037092 PMCID: PMC8148979 DOI: 10.1590/1414-431x2020e10685] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2020] [Accepted: 03/30/2021] [Indexed: 12/24/2022]
Abstract
Tanshinone I (Tan I) is one of the main bioactive ingredients derived from Salvia miltiorrhiza Bunge, which has exhibited antitumor activities toward various human cancer cells. However, its effects and underlying mechanisms on human chronic myeloid leukemia (CML) cells still require further investigation. This study determined the effects and mechanisms of anti-proliferative and apoptosis induction activity induced by Tan I against K562 cells. The cytotoxic effect of Tan I at varying concentrations on K562 cells was evaluated via MTT assay. Cell apoptosis was further investigated through DAPI staining and flow cytometry analysis. The expression levels of apoptosis-related proteins and activities of JNK/ATF2 and ERK signaling pathways were analyzed by western blot. Quantitative PCR was performed to further determine mRNA expression levels of JNK1/2 and ERK1/2 after Tan I treatment. The results indicated that Tan I significantly inhibited K562 cell growth and induced apoptosis in a concentration- and time-dependent manner. It induced significant cellular morphological changes and increased apoptosis rates in CML cells. Tan I promoted the cleavages of caspase-related proteins, as well as increased the expression levels of PUMA. Furthermore, Tan I significantly activated JNK and inhibited ATF-2 and ERK signaling pathways. The mRNA expression levels of JNK1/2 and ERK1/2 were up-regulated by Tan I, further confirming its regulatory effects on JNK/ERK signaling pathways. Overall, our results indicated that Tan I suppressed cell viability via JNK- and ERK-mediated apoptotic pathways in K562 cells, suggesting that it might be a promising candidate as a novel anti-leukemia drug.
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Affiliation(s)
- Siya Sun
- The First Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, China.,College of Pharmaceutical Science, Zhejiang Chinese Medical University, Hangzhou, China
| | - Lingyan Zhu
- College of Pharmaceutical Science, Zhejiang Chinese Medical University, Hangzhou, China
| | - Mengru Lai
- College of Pharmaceutical Science, Zhejiang Chinese Medical University, Hangzhou, China
| | - Rubin Cheng
- College of Pharmaceutical Science, Zhejiang Chinese Medical University, Hangzhou, China
| | - Yuqing Ge
- The First Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, China
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Zhou M, Yan M, Ying Z, He X, Ge Y, Cheng R. Characterization of the complete chloroplast genome of Oxalis corymbosa DC. (Oxalidaceae), a medicinal plant from Zhejiang Province. Mitochondrial DNA B Resour 2021; 6:1138-1140. [PMID: 33796768 PMCID: PMC8006946 DOI: 10.1080/23802359.2021.1882905] [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: 11/08/2020] [Accepted: 01/23/2021] [Indexed: 11/10/2022] Open
Abstract
Oxalis corymbosa DC. is an important medicinal and edible perennial herb belonging to the wood-sorrel family Oxalidaceae. In this study, we report the complete chloroplast (cp) genome sequence of O. corymbosa. The assembled chloroplast genome was 151,351 bp in length, containing two inverted repeated (IR) regions of 24,587 bp each, a large single copy (LSC) region of 85,476 bp, and a small single copy (SSC) region of 16,701 bp. The genome encodes 128 genes, consisting of 82 protein-coding genes, 37 tRNA genes, eight rRNA genes, and one pseudogene (ycf1). The 82 protein-coding genes encode 25,751 amino acids in total, most of which use the initiation codon ATG, except rps19 and psbC genes start with GTG. The lengths of the tRNA genes range from 71 bp to 93 bp, with the highest GC content of 62.16% in tRNA-Arg (ACG). The overall GC content of O. corymbosa is 36.47%, with the highest GC content of 42.64% in IR region. In addition, a total of 74 simple sequence repeats were identified in the cp genome of O. corymbosa. Phylogenetic analysis indicated a sister relationship between O. corymbosa and O. drummondii, suggesting a close genetic relationship between the two Oxalis species. This work provides basic genetic resources for investigating the evolutionary status and population genetics diversities for this medicinal species.
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Affiliation(s)
- Manjia Zhou
- College of Pharmaceutical Science, Zhejiang Chinese Medical University, Hangzhou, China
| | - Meixiu Yan
- College of Pharmaceutical Science, Zhejiang Chinese Medical University, Hangzhou, China
| | - Zhiqi Ying
- College of Pharmaceutical Science, Zhejiang Chinese Medical University, Hangzhou, China
| | - Xiangyu He
- College of Pharmaceutical Science, Zhejiang Chinese Medical University, Hangzhou, China
| | - Yuqing Ge
- The First Affiliated Hospital of Zhejiang, Chinese Medical University, Hangzhou, China
| | - Rubin Cheng
- College of Pharmaceutical Science, Zhejiang Chinese Medical University, Hangzhou, China
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He X, Zheng Z, Wang Q, Zhou M, Liao G, Ge Y, Cheng R. Complete chloroplast genome sequence of the medicinal plant ramie ( Boehmeria nivea L. gaud) and its phylogenetic relationship to other Urticaceae species. Mitochondrial DNA B Resour 2021; 6:1136-1137. [PMID: 33796767 PMCID: PMC7995820 DOI: 10.1080/23802359.2021.1878959] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2020] [Accepted: 01/16/2021] [Indexed: 12/15/2022] Open
Abstract
Ramie (Boehmeria nivea L. Gaud) is a traditional fiber crop and important medicinal plant belonging to the family Urticaceae. In this study, we determine the complete chloroplast genome sequence of B. nivea. The assembled chloroplast genome is 156065 bp in length and shares the conserved quadripartite structure as other cp genomes in Boehmeria. The genome contains 131 genes, including 84 protein genes, 8 rRNA genes, 37 tRNA genes and 2 pseudo genes. There are 17 duplicated genes in the IR region. The overall GC content of B. nivea is 36.33%, with the highest GC content of 42.72% in IR region. A total of 67 simple sequence repeats are identified in the cp genome of B. nivea. Phylogenetic analysis demonstrated that B. nivea clustered together with B. tomentosa, further forming a monophyletic group with the species of Debregeasia and Pipturus. This work provides basic genetic resources for developing robust markers and investigating the population genetics diversities for B. nivea.
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Affiliation(s)
- Xiangyu He
- College of Pharmaceutical Science, Zhejiang Chinese Medical University, Hangzhou, China
| | - Zihong Zheng
- The Administration Bureau of Zhejiang, Jiulongshan National Nature Reserve, Suichang
| | - Qirui Wang
- College of Pharmaceutical Science, Zhejiang Chinese Medical University, Hangzhou, China
| | - Manjia Zhou
- College of Pharmaceutical Science, Zhejiang Chinese Medical University, Hangzhou, China
| | - Guanghui Liao
- College of Pharmaceutical Science, Zhejiang Chinese Medical University, Hangzhou, China
| | - Yuqing Ge
- The First Affiliated Hospital of Zhejiang, Chinese Medical University, Hangzhou, China
| | - Rubin Cheng
- College of Pharmaceutical Science, Zhejiang Chinese Medical University, Hangzhou, China
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Dong XB, Zhang T, Huo Z, Wang Q, Ge Y, Li TS. [The 485th case: fever of undetermined origin and hypoxemia]. Zhonghua Nei Ke Za Zhi 2021; 60:279-283. [PMID: 33663183 DOI: 10.3760/cma.j.cn112138-20200313-00235] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
A 49-year-old male was admitted to Peking Union Medical College Hospital presented with fever for more than half a year. The patient was diagnosed as Sjogren's syndrome at local hospital. After oral prednisone 60 mg per day was given, the fever alleviated, but recurred after prednisone tapered to 40 mg/d. Both blood culture and stool culture were positive for Salmonella enteritidis. Antibiotics including ceftazidime, ceftriaxone, cilastatin-imipenem were sequentially administrated for 4 weeks, yet not effective. Although there were not respiratory symptoms or certain abnormalities on high-resolution chest CT, arterial blood gas indicated hypoxemia. Serum lactate dehydrogenase and β2 micro-globulin were elevated, and the lung function test demonstrated significant impairment of diffusion function. Positron emission tomography-computed tomography (PET/CT)scan suggested that high fluorodeoxyglucose uptake was diffusely seen in both lungs. The patient was finally diagnosed as pulmonary intravascular large B-cell lymphoma (IVLBCL) by transbronchial lung biopsy. This case aims to emphasize the differentiation diagnoses of pulmonary intravascular lymphoma from common situations.
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Affiliation(s)
- X B Dong
- Department of Internal Medicine, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - T Zhang
- Department of Respiratory and Critical Care Medicine, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - Z Huo
- Department of Pathology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - Q Wang
- Department of Rheumatology and Clinical Immunology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - Y Ge
- Department of Infectious Diseases, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - T S Li
- Department of Infectious Diseases, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
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Jin Y, Qi T, Ge Y, Chen J, Liang L, Ju J, Zhao J. Ultrasensitive electrochemical determination of phosphate in water by using hydrophilic TiO 2 modified glassy carbon electrodes. Anal Methods 2021; 13:996-1002. [PMID: 33533760 DOI: 10.1039/d0ay01854f] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
In this paper, ultrasensitive electrochemical determination of phosphate in water is achieved by using hydrophilic TiO2 modified glassy carbon electrodes for the first time. The differential pulse voltammetry (DPV) method is proposed to measure phosphate in water as pulse techniques offer higher sensitivity compared with the conventional cyclic voltammetry (CV) method. Hydrophilic TiO2 films were obtained upon ultraviolet (UV) illumination after TiO2 precursor emulsions were coated on the surfaces of glassy carbon electrodes, and used for phosphate determination. Contact angle measurements (around 23.4°) proved the good hydrophilicity of the TiO2 modified surface upon UV illumination. A detection limit of 0.1 μg L-1 is obtained, and a linear relationship (R2 = 0.99) between the phosphate concentration (ranging from 0.1 μg L-1 to 1 μg L-1) and the peak current was observed.
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Affiliation(s)
- Yan Jin
- College of Sciences, Shanghai Institute of Technology, Shanghai 201418, China.
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Zhou L, Wei H, Ge Y, Ding Z, Shi H. [Consistency of effective orifice area of prosthetic mitral valve estimated using 2-dimensional and 3-dimensional transesophageal echocardiography]. Nan Fang Yi Ke Da Xue Xue Bao 2021; 41:238-242. [PMID: 33624597 DOI: 10.12122/j.issn.1673-4254.2021.02.11] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
OBJECTIVE To analyze the consistency of effective orifice area (EOA) of prosthetic mitral valve estimated using 2- dimensional (2D) and 3-dimensional (3D) transesophageal echocardiography (TEE). OBJECTIVE This study was conducted among 34 patients undergoing mitral valve replacement surgery in Nanjing First Hospital between March and June in 2019. The diameter of the left ventricular outflow tract (LVOT) measured by 2D-TEE was used to calculate the cross sectional area of LVOT (CSALVOT). In 3D-TEE method, LVOT area was measured directly by planimetry on an enface view. The EOAs of the prosthetic mitral valve were calculated for both methods using the continuity equation. Bland-Altman plot consistency test was used to analyze the consistency between the two sets of EOA results, and linear regression analysis was used to analyze their correlation. OBJECTIVE The EOA of the prosthetic mitral valve differed significantly between 2D method and 3D method (2.22±0.71 cm2 vs 2.35±0.70 cm2, P < 0.001) with a mean difference of -0.14±0.20 cm2 and 95% coherence boundaries of (-0.53, 0.25 cm2). The regression equation for EOA-3D and EOA-2D is y=0.27 + 0.94x, showing a good correlation between the two methods. OBJECTIVE EOA estimation of the prosthetic mitral valve using 2D and 3D TEE has a good consistency, and the results estimated by the 2D method are slightly lower by about 6% than those by the 3D method.
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Affiliation(s)
- L Zhou
- Department of Anesthesiology, Changzhou Maternity and Child Health Care Hospital Affiliated to Nanjing Medical University, Changzhou 213003, China
| | - H Wei
- Department of Anesthesiology, Nanjing First Hospital Affiliated to Nanjing Medical University, Nanjing 210006, China
| | - Y Ge
- Department of Anesthesiology, Nanjing First Hospital Affiliated to Nanjing Medical University, Nanjing 210006, China
| | - Z Ding
- Department of Anesthesiology, First Affiliated Hospital to Nanjing Medical University, Nanjing 210029, China
| | - H Shi
- Department of Anesthesiology, Nanjing First Hospital Affiliated to Nanjing Medical University, Nanjing 210006, China
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Wan B, Zhang X, Luo D, Zhang T, Chen X, Yao Y, Zhao X, Lei L, Liu C, Zhao W, Zhou L, Ge Y, Mao H, Liu S, Chen J, Cheng X, Zhao J, Sui G. On-site analysis of COVID-19 on the surfaces in wards. Sci Total Environ 2021; 753:141758. [PMID: 32898806 PMCID: PMC7434306 DOI: 10.1016/j.scitotenv.2020.141758] [Citation(s) in RCA: 9] [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: 07/07/2020] [Revised: 08/13/2020] [Accepted: 08/15/2020] [Indexed: 05/11/2023]
Abstract
SARS-Cov-2 has erupted across the globe, and confirmed cases of COVID-19 pose a high infection risk. Infected patients typically receive their treatment in specific isolation wards, where they are confined for at least 14 days. The virus may contaminate any surface of the room, especially frequently touched surfaces. Therefore, surface contamination in wards should be monitored for disease control and hygiene purposes. Herein, surface contamination in the ward was detected on-site using an RNA extraction-free rapid method. The whole detection process, from surface sample collection to readout of the detection results, was finished within 45 min. The nucleic acid extraction-free method requires minimal labor. More importantly, the tests were performed on-site and the results were obtained almost in real-time. The test confirmed that 31 patients contaminated seven individual sites. Among the sampled surfaces, the electrocardiogram fingertip presented a 72.7% positive rate, indicating that this surface is an important hygiene site. Meanwhile, the bedrails showed the highest correlation with other surfaces, so should be detected daily. Another surface with high contamination risk was the door handle in the bathroom. To our knowledge, we present the first on-site analysis of COVID-19 surface contamination in wards. The results and applied technique provide a potential further reference for disease control and hygiene suggestions.
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Affiliation(s)
- Bin Wan
- Public Health Clinical Center of Chengdu, No. 377 Jingming Road, Jinjiang District, Chengdu, Sichuan 610066, China
| | - Xinlian Zhang
- Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention (LAP(3)), Department of Environment Science & Engineering, Fudan University, Shanghai 200433, China
| | - Dongxia Luo
- Public Health Clinical Center of Chengdu, No. 377 Jingming Road, Jinjiang District, Chengdu, Sichuan 610066, China
| | - Tong Zhang
- Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention (LAP(3)), Department of Environment Science & Engineering, Fudan University, Shanghai 200433, China
| | - Xi Chen
- Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention (LAP(3)), Department of Environment Science & Engineering, Fudan University, Shanghai 200433, China
| | - Yuhan Yao
- Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention (LAP(3)), Department of Environment Science & Engineering, Fudan University, Shanghai 200433, China
| | - Xia Zhao
- Public Health Clinical Center of Chengdu, No. 377 Jingming Road, Jinjiang District, Chengdu, Sichuan 610066, China
| | - Limei Lei
- Public Health Clinical Center of Chengdu, No. 377 Jingming Road, Jinjiang District, Chengdu, Sichuan 610066, China
| | - Chunmei Liu
- Public Health Clinical Center of Chengdu, No. 377 Jingming Road, Jinjiang District, Chengdu, Sichuan 610066, China
| | - Wang Zhao
- Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention (LAP(3)), Department of Environment Science & Engineering, Fudan University, Shanghai 200433, China
| | - Lin Zhou
- State Key Laboratory of Transducer Technology, Shanghai Institute of Microsystem and Information Technology (SIMIT), Chinese Academy of Sciences, Shanghai 200050, China
| | - Yuqing Ge
- State Key Laboratory of Transducer Technology, Shanghai Institute of Microsystem and Information Technology (SIMIT), Chinese Academy of Sciences, Shanghai 200050, China
| | - Hongju Mao
- State Key Laboratory of Transducer Technology, Shanghai Institute of Microsystem and Information Technology (SIMIT), Chinese Academy of Sciences, Shanghai 200050, China
| | - Sixiu Liu
- Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention (LAP(3)), Department of Environment Science & Engineering, Fudan University, Shanghai 200433, China
| | - Jianmin Chen
- Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention (LAP(3)), Department of Environment Science & Engineering, Fudan University, Shanghai 200433, China; Shanghai Institute of Pollution Control and Ecological Security, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China
| | - Xunjia Cheng
- Department of Medical Microbiology, Key Laboratory of Medical Molecular Virology of Ministries of Education and Health, School of Basic Medical Sciences, Fudan University, 131 Dongan Road, Shanghai 200032, China
| | - Jianlong Zhao
- State Key Laboratory of Transducer Technology, Shanghai Institute of Microsystem and Information Technology (SIMIT), Chinese Academy of Sciences, Shanghai 200050, China.
| | - Guodong Sui
- Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention (LAP(3)), Department of Environment Science & Engineering, Fudan University, Shanghai 200433, China; Shanghai Institute of Pollution Control and Ecological Security, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China; Department of Medical Microbiology, Key Laboratory of Medical Molecular Virology of Ministries of Education and Health, School of Basic Medical Sciences, Fudan University, 131 Dongan Road, Shanghai 200032, China.
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Zhao Z, Qiao H, Ge Y, Kannapel CC, Sung SSJ, Gaskin F, Tung KSK, Fu SM. Autoimmune experimental orchitis and chronic glomerulonephritis with end stage renal disease are controlled by Cgnz1 for susceptibility to end organ damage. Clin Immunol 2021; 224:108675. [PMID: 33482358 DOI: 10.1016/j.clim.2021.108675] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2021] [Accepted: 01/13/2021] [Indexed: 01/01/2023]
Abstract
Cgnz1 on chromosome 1 mapped into a 1.34 Mb region of chromosome 1 in NZM2328 confers the progression of immune complex (IC)-mediated glomerulonephritis (GN) from acute GN (aGN) to chronic GN (cGN) with severe proteinuria and end stage renal disease in female mice. This genetic locus mediates podocyte susceptibility to IC-mediated damage. Taking advantage of the published observation that Cgnz1 is derived from NZW and that NZW is susceptible to orchitis, epididymitis and vasitis while C57L/J is resistant to these diseases, the possibility that this genetic region also confers germ cells susceptible to damage with aspermatogenesis and sterility in an active experimental autoimmune orchitis (EAO) model was investigated. Male mice from multiple intrachromosome (chromosome 1) recombinant strains were subjected to immunization with a sperm homogenate in CFA with concomitant administration of Bordetella pertussis toxin. There was concordance of the progression from aGN to cGN, severe proteinuria and end stage renal disease with susceptibility of EAO in NZM2328 and its congenic strains with various chromosome 1 genetic intervals introgressed from C57L/J to NZM2328. Both resistant and susceptible strains made comparable anti-testis and anti-sperm Abs. Thus the genetic interval that determines susceptibility to EAO is identical to that of Cgnz1 and mapped to the 1.34 Mb region in chromosone 1. This region likely confers germ cells in the male gonad susceptible to damage by immunologically mediated inflammation. This region has been tentatively renamed Cgnz1/Eaoz1. These observations further emphasize the importance of end organ susceptibility to damage in the pathogenesis of both systemic and organ specific autoimmune diseases.
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Affiliation(s)
- Zhenhuan Zhao
- Division of Rheumatology, Center for Immunity, Inflammation and Regenerative Medicine, Charlottesville, VA, USA; Department of Microbiology, Immunology, and Cancer Biology, University of Virginia, Charlottesville, VA, USA
| | - Hui Qiao
- Department of Microbiology, Immunology, and Cancer Biology, University of Virginia, Charlottesville, VA, USA; Department of Pathology, University of Virginia, Charlottesville, VA, USA
| | - Y Ge
- Division of Rheumatology, Center for Immunity, Inflammation and Regenerative Medicine, Charlottesville, VA, USA; Department of Microbiology, Immunology, and Cancer Biology, University of Virginia, Charlottesville, VA, USA
| | - C C Kannapel
- Division of Rheumatology, Center for Immunity, Inflammation and Regenerative Medicine, Charlottesville, VA, USA; Department of Microbiology, Immunology, and Cancer Biology, University of Virginia, Charlottesville, VA, USA
| | - Sun-Sang J Sung
- Division of Rheumatology, Center for Immunity, Inflammation and Regenerative Medicine, Charlottesville, VA, USA
| | - Felicia Gaskin
- Department of Psychiatry and Neurobehavioral Sciences, University of Virginia, Charlottesville, VA, USA
| | - Kenneth S K Tung
- Department of Microbiology, Immunology, and Cancer Biology, University of Virginia, Charlottesville, VA, USA; Department of Pathology, University of Virginia, Charlottesville, VA, USA; Bernie B. Carter Center for Immunology Research, University of Virginia, Charlottesville, VA, USA.
| | - Shu Man Fu
- Division of Rheumatology, Center for Immunity, Inflammation and Regenerative Medicine, Charlottesville, VA, USA; Department of Medicine, University of Virginia, Charlottesville, VA, USA; Department of Microbiology, Immunology, and Cancer Biology, University of Virginia, Charlottesville, VA, USA.
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Pang M, Shi Z, Lei Z, Ge Y, Jiang S, Cao L. Structure and thermal properties of beeswax-based oleogels with different types of vegetable oil. Grasas y Aceites 2020. [DOI: 10.3989/gya.0806192] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Beeswax-based oleogels with different types of vegetable oil, including camellia oil (CO), soybean oil (SO), sunflower oil (SFO), or flaxseed oil (FO), were prepared and their structure and thermal properties were evaluated. The critical concentration of oleogel obtained from each of CO, SO, and SFO at 25 °C was 3% (w/w), and that from FO was 4%. Thermal measurements revealed similar thermodynamic curves for oleogels in different lipid phases. X-Ray diffraction showed orthorhombic perpendicular subcell packing and characteristic peaks of the β’ form. Furthermore, a morphology analysis of the crystals showed that they were needle shaped. Fourier transform-infrared spectra revealed that beeswax-based oleogels were formed via non-covalent bonds and may be stabilized with physical entanglements. The oleogels showed oil type-dependent oxidative abilities, but they were all stable and showed no obvious changes in peroxide value during 90 days of storage at 5 °C.
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Wang H, Ge Y, Sun J, Wang H, Gu N. Magnetic sensor based on image processing for dynamically tracking magnetic moment of single magnetic mesenchymal stem cell. Biosens Bioelectron 2020; 169:112593. [PMID: 32966950 DOI: 10.1016/j.bios.2020.112593] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2020] [Revised: 08/28/2020] [Accepted: 09/02/2020] [Indexed: 01/06/2023]
Abstract
Developing an economical and universal method to measure the magnetic moments of magnetic mesenchymal stem cells (MSCs) labelled with superparamagnetic iron oxide (SPIO) nanoparticles is crucial for cell tracking. In this study, we used a gradient magnetic field created by a nickel needle to track the motion of cells. A simple and quantifiable magnetic sensor was employed to evaluate the magnetic properties of single viable MSCs. We measured the magnetic moments of microbeads and MSCs using the proposed method and compared the results with magnetic moments measured using a superconducting quantum interference device and with iron contents measured using an inductively coupled plasma spectrometer, respectively. The correlation coefficients indicated satisfactory agreement in both cases, thus confirming the accuracy of the system. By labelling MSCs with SPIOs, we implemented a miniature magnetic sensor to measure the magnetic moments of single magnetic MSCs quantitatively using an image-processing algorithm. Existing methods for the measurement of magnetic moments at the micro/nanoscale have various limitations. Our system realised the measurement of single viable cells, thereby providing a theoretical foundation for the labelling and tracking of MSCs with SPIO nanoparticles. Additionally, the proposed system is both economical and universal.
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Affiliation(s)
- Haoyao Wang
- State Key Laboratory of Bioelectronics, Jiangsu Key Laboratory for Biomaterials and Devices, School of Biological Science and Medical Engineering, Southeast University, Nanjing, 210096, PR China
| | - Yuqing Ge
- State Key Laboratory of Transducer Technology, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai, 200050, PR China
| | - Jianfei Sun
- State Key Laboratory of Bioelectronics, Jiangsu Key Laboratory for Biomaterials and Devices, School of Biological Science and Medical Engineering, Southeast University, Nanjing, 210096, PR China
| | - Hong Wang
- Suzhou Institute of Nano-tech and Nano-bionics, Chinese Academy of Sciences, PR China
| | - Ning Gu
- State Key Laboratory of Bioelectronics, Jiangsu Key Laboratory for Biomaterials and Devices, School of Biological Science and Medical Engineering, Southeast University, Nanjing, 210096, PR China.
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