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Han X, Liu Y, Yin J, Yue M, Mu Y. Microfluidic devices for multiplexed detection of foodborne pathogens. Food Res Int 2021; 143:110246. [PMID: 33992358 DOI: 10.1016/j.foodres.2021.110246] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [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: 11/20/2020] [Revised: 02/02/2021] [Accepted: 02/16/2021] [Indexed: 01/10/2023]
Abstract
The global burden of foodborne diseases is substantial and foodborne pathogens are the major cause for human illnesses. In order to prevent the spread of foodborne pathogens, detection methods are constantly being updated towards rapid, portable, inexpensive, and multiplexed on-site detection. Due to the nature of the small size and low volume, microfluidics has been applied to rapid, time-saving, sensitive, and portable devices to meet the requirements of on-site detection. Simultaneous detection of multiple pathogens is another key parameter to ensure food safety. Multiplexed detection technology, including microfluidic chip design, offers a new opportunity to achieve this goal. In this review, we introduced several sample preparation and corresponding detection methods on microfluidic devices for multiplexed detection of foodborne pathogens. In the sample preparation section, methods of cell capture and enrichment, as well as nucleic acid sample preparation, were described in detail, and in the section of detection methods, amplification, immunoassay, surface plasmon resonance and impedance spectroscopy were exhaustively illustrated. The limitations and advantages of all available experimental options were also summarized and discussed in order to form a comprehensive understanding of cutting-edge technologies and provide a comparative assessment for future investigation and in-field application.
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Affiliation(s)
- Xiaoying Han
- Research Centre for Analytical Instrumentation, Institute of Cyber-Systems and Control, State Key Laboratory of Industrial Control Technology, Zhejiang University, Hangzhou 310023, PR China; College of Life Sciences, Zhejiang University, Hangzhou 310058, PR China
| | - Yuanhui Liu
- Research Centre for Analytical Instrumentation, Institute of Cyber-Systems and Control, State Key Laboratory of Industrial Control Technology, Zhejiang University, Hangzhou 310023, PR China; College of Life Sciences, Zhejiang University, Hangzhou 310058, PR China
| | - Juxin Yin
- Research Centre for Analytical Instrumentation, Institute of Cyber-Systems and Control, State Key Laboratory of Industrial Control Technology, Zhejiang University, Hangzhou 310023, PR China
| | - Min Yue
- Department of Veterinary Medicine & Institute of Preventive Veterinary Sciences, Zhejiang University College of Animal Sciences, Hangzhou 310058, PR China; State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, National Medical Center for Infectious Diseases, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou 310003, PR China; Hainan Institute of Zhejiang University, Sanya 572025, PR China.
| | - Ying Mu
- Research Centre for Analytical Instrumentation, Institute of Cyber-Systems and Control, State Key Laboratory of Industrial Control Technology, Zhejiang University, Hangzhou 310023, PR China.
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Wu W, Zhang S, Zhang T, Mu Y. Immobilized Droplet Arrays in Thermosetting Oil for Dynamic Proteolytic Assays of Single Cells. ACS Appl Mater Interfaces 2021; 13:6081-6090. [PMID: 33504155 DOI: 10.1021/acsami.0c21696] [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] [Indexed: 06/12/2023]
Abstract
Matrix metalloproteinases (MMPs) play an important role in tumor progression. The study of dynamic MMPs activity at the single-cell level can dissect tumor heterogeneity in the time domain and facilitate finding out more efficient clinical solutions for tumor treatment. Due to the fluidity of the carrier oil, the existing droplet-based methods for single-cell MMP analysis rarely have the capability to track proteolytic assays in droplets continuously. Therefore, we describe a thermosetting oil for real-time monitoring of MMP assays in droplets, which can immobilize droplets by transforming into solid after droplet generation. The solidification of this oil can be accomplished in 33 min at 37 °C, basing on the hydrosilation of vinyl silicone oil and hydrosilicone oil without other inducers (e.g. UV, Ca2+). Through monitoring the MMP assays of single cells, the reaction rates can be calculated according to real-time fluorescent curves, showing significant cell heterogeneity in MMP activity. Moreover, the dynamic MMP activity reveals that some of the A549 cells transiently secrete MMP. In conclusion, the thermosetting oil enables immobilize droplets to achieve real-time monitoring of single-cell proteolytic activity without impairing the flexibility of droplet microfluidics and has a potential in other cell-based assays for providing dynamic information at high resolutions.
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Affiliation(s)
- Wenshuai Wu
- Research Center for Analytical Instrumentation, Institute of Cyber-Systems and Control, State Key Laboratory of Industrial Control Technology, Zhejiang University, Hangzhou 310027, P. R. China
- College of Life Sciences, Zhejiang University, Hangzhou 310058, P. R. China
| | - Shan Zhang
- Research Center for Analytical Instrumentation, Institute of Cyber-Systems and Control, State Key Laboratory of Industrial Control Technology, Zhejiang University, Hangzhou 310027, P. R. China
- College of Life Sciences, Zhejiang University, Hangzhou 310058, P. R. China
| | - Tao Zhang
- Research Center for Analytical Instrumentation, Institute of Cyber-Systems and Control, State Key Laboratory of Industrial Control Technology, Zhejiang University, Hangzhou 310027, P. R. China
| | - Ying Mu
- Research Center for Analytical Instrumentation, Institute of Cyber-Systems and Control, State Key Laboratory of Industrial Control Technology, Zhejiang University, Hangzhou 310027, P. R. China
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Wei WJ, Mu Y, Wei L, Hu JX, Wang GM. Two Photochromic Complexes Assembled by a Nonphotochromic Ligand: Photogenerated Radical Enhanced Room-Temperature Phosphorescence. Inorg Chem 2021; 60:108-114. [PMID: 33351630 DOI: 10.1021/acs.inorgchem.0c02463] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Stimulating tunable room-temperature phosphorescence (RTP) is still a challenge in photochromic systems, which is vital for multifunctional coordination materials. Herein, we synthesized two new photochromic chain complexes through self-assembly of the nonphotochromic 1,3,5-tris(4-pyridyl)benzene ligand, diphosphonate, and Ln(III) ions (1 for Ln(III) = Dy and 2 for Ln(III) = Gd). Both compounds showed fast photoresponses with the color turning from yellow to dark gray with a reversible decoloration by heating or storage in the dark. The electron transfer photochromic behavior with the generated stable radicals was further confirmed by the room-temperature UV-vis and electron paramagnetic resonance spectra. Furthermore, via tuning the generation and disappearance of stable radicals, reversible room-temperature fluorescence and phosphorescence for both compounds were switched by light irradiation and a thermal treatment, with an enhanced intensity for RTP and a decrease in fluorescence during the duration of Xe-lamp light irradiation. This work provides a new strategy that photogenerated radicals could promote and enhance RTP properties in functional materials.
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Affiliation(s)
- Wu-Ji Wei
- College of Chemistry and Chemical Engineering, Qingdao University, Qingdao, Shandong 266071, People's Republic of China
| | - Ying Mu
- College of Chemistry and Chemical Engineering, Qingdao University, Qingdao, Shandong 266071, People's Republic of China
| | - Li Wei
- College of Chemistry and Chemical Engineering, Qingdao University, Qingdao, Shandong 266071, People's Republic of China
| | - Ji-Xiang Hu
- College of Chemistry and Chemical Engineering, Qingdao University, Qingdao, Shandong 266071, People's Republic of China
| | - Guo-Ming Wang
- College of Chemistry and Chemical Engineering, Qingdao University, Qingdao, Shandong 266071, People's Republic of China
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Zou Z, Liu Y, Xia L, Hu Z, Yin J, Mu Y. A multiplex and fast detection platform for microRNAs based on a self-priming microfluidic chip and duplex-specific nuclease. Analyst 2021; 146:628-635. [DOI: 10.1039/d0an01691h] [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] [Indexed: 12/17/2022]
Abstract
A self-priming microfluidic chip for multiplex and fast detection of microRNAs was developed.
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Affiliation(s)
- Zheyu Zou
- Research Centre for Analytical Instrumentation
- Institute of Cyber-Systems and Control
- State Key Laboratory of Industrial Control Technology
- Zhejiang University
- Hangzhou
| | - Yuanhui Liu
- Research Centre for Analytical Instrumentation
- Institute of Cyber-Systems and Control
- State Key Laboratory of Industrial Control Technology
- Zhejiang University
- Hangzhou
| | - Liping Xia
- Research Centre for Analytical Instrumentation
- Institute of Cyber-Systems and Control
- State Key Laboratory of Industrial Control Technology
- Zhejiang University
- Hangzhou
| | - Zhenming Hu
- Research Centre for Analytical Instrumentation
- Institute of Cyber-Systems and Control
- State Key Laboratory of Industrial Control Technology
- Zhejiang University
- Hangzhou
| | - Juxin Yin
- Research Centre for Analytical Instrumentation
- Institute of Cyber-Systems and Control
- State Key Laboratory of Industrial Control Technology
- Zhejiang University
- Hangzhou
| | - Ying Mu
- Research Centre for Analytical Instrumentation
- Institute of Cyber-Systems and Control
- State Key Laboratory of Industrial Control Technology
- Zhejiang University
- Hangzhou
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Wang Z, Mu Y. Chiral salenCo( iii) complexes with bulky substituents as catalysts for stereoselective alternating copolymerization of racemic propylene oxide with carbon dioxide and succinic anhydride. Polym Chem 2021. [DOI: 10.1039/d0py01562h] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
Stereoregular poly(propylene carbonate)s and poly(propylene succinate-block-carbonate)s were synthesized with new chiral salenCo(iii) catalysts carrying bulky substituents.
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Affiliation(s)
- Zhou Wang
- State Key Laboratory for Supramolecular Structure and Materials
- School of Chemistry
- Jilin University
- Changchun 130012
- P. R. China
| | - Ying Mu
- State Key Laboratory for Supramolecular Structure and Materials
- School of Chemistry
- Jilin University
- Changchun 130012
- P. R. China
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Liu ZX, Wang JQ, Mu Y, Wei Q, Li JH, Wang GM. Room-Temperature Phosphorescence with Variable Lifetime of Halogen-Comprising Coordination Polymers. Inorg Chem 2020; 59:17870-17874. [PMID: 33237757 DOI: 10.1021/acs.inorgchem.0c02948] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Materials with lifetime-tunable room-temperature phosphorescence are fascinating for multiple encryption-decryption security applications. Herein, by introducing different halogen ions, that is, Cl, Br, and I, together with organic luminescent units to bond to a zinc center, three coordination polymers were hydro(solvo)thermally synthesized. The results show that three coordination polymers present room-temperature phosphorescence with different lifetimes. Furthermore, a multiple encryption-decryption system combining temporal and spatial resolution characteristics was designed.
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Affiliation(s)
- Zhong-Xin Liu
- College of Chemistry and Chemical Engineering, Qingdao University, Shandong 266071, P. R. China
| | - Jun-Qing Wang
- College of Chemistry and Chemical Engineering, Qingdao University, Shandong 266071, P. R. China
| | - Ying Mu
- College of Chemistry and Chemical Engineering, Qingdao University, Shandong 266071, P. R. China
| | - Qi Wei
- College of Chemistry and Chemical Engineering, Qingdao University, Shandong 266071, P. R. China
| | - Jin-Hua Li
- College of Chemistry and Chemical Engineering, Qingdao University, Shandong 266071, P. R. China
| | - Guo-Ming Wang
- College of Chemistry and Chemical Engineering, Qingdao University, Shandong 266071, P. R. China
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Zhao X, Mu Y, Dong H, Zhang H, Zhang H, Chi Y, Song G, Li H, Wang L. Effect of cinnamaldehyde incorporation on the structural and physical properties, functional activity of soy protein isolate‐egg white composite edible films. J FOOD PROCESS PRES 2020. [DOI: 10.1111/jfpp.15143] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Xiaotong Zhao
- College of Food Science Northeast Agricultural University Harbin China
| | - Ying Mu
- College of Food Science Northeast Agricultural University Harbin China
| | - Heliang Dong
- Heilongjiang Quality Supervision and Testing Institute Harbin China
| | - Hong Zhang
- College of Food Science Northeast Agricultural University Harbin China
| | - Huajiang Zhang
- College of Food Science Northeast Agricultural University Harbin China
| | - Yujie Chi
- College of Food Science Northeast Agricultural University Harbin China
| | - Guangshuang Song
- College of Food Science Northeast Agricultural University Harbin China
| | - Hanyu Li
- College of Food Science Northeast Agricultural University Harbin China
| | - Lechuan Wang
- College of Food Science Northeast Agricultural University Harbin China
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Wei L, Mu Y, Ji L, Guo X, Li T. Down-regulation of F-actin and paxillin by N-(3-(1Htetrazol- 1-yl)phenyl) isonicotinamide derivative inhibits proliferation of prostate cancer cells. TROP J PHARM RES 2020. [DOI: 10.4314/tjpr.v19i7.8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Purpose: To investigate the effect of N-(3-(1H-tetrazol-1-yl)phenyl) isonicotinamide derivative (TPIN) on prostate cancer cells, and the mechanism involved.Methods: The cytotoxicity of TPIN in DU145 and PC3 cells was determined using Cell Counting Kit-8, while apoptosis induction was assayed by flow cytometry using Annexin V-fluorescein isothiocyanate dye. Changes in expressions of F-actin, RAC-α and paxillin were determined by western blot assay.Results: Cell proliferation was effectively inhibited by TPIN in the concentration range of 0.75-15 μM. The values of half-minimum inhibitory concentration (IC50) of TPIN for DU145 and PC3 cells at 48 h were 5.6 and 10.2 μM, respectively (p < 0.05). Treatment with 5.6 μM TPIN increased apoptosis to 59.64 % in DU145 cells, and 54.21% in PC3 cells. Cleaved caspase-3 and caspase-9 levels were increased by TPIN treatment in both cell lines (p < 0.05). Moreover, the levels of F-actin and paxillin were significantly downregulated by TPIN treatment in DU145 and PC3 cells (p < 0.05). In TPIN-treated DU145 and PC3 cells, cofilin-1expression was up-regulated, relative to control cells.Conclusion: TPIN exhibits cytotoxic effect on prostate cancer cells via activation of apoptosis. It elevates cofilin-1 and the expressions of targets F-actin and paxillin in prostate cancer cells. Thus, TPIN is a potential chemotherapeutic agent for prostate cancer. However, further investigations, including clinical trials are required to authenticate these findings.
Keywords: Prostate cancer, F-actin, Paxillin, Apoptosis, Caspases
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Wang W, Wang S, Liu J, Liu Y, Mu Y, Wang J. Transcatheter hepatic arterial chemoembolization combined with Kangai injection for hepatitis B virus-related hepatocellular carcinoma: A protocol for a PRISMA-compliant meta-analysis. Medicine (Baltimore) 2020; 99:e22565. [PMID: 33031303 PMCID: PMC10545312 DOI: 10.1097/md.0000000000022565] [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] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/03/2020] [Accepted: 09/04/2020] [Indexed: 01/05/2023] Open
Abstract
BACKGROUND Kangai injection, a well-known insect-derived traditional Chinese medicine preparation, has been widely applied as a promising adjunctive drug for hepatitis B virus (HBV)-related hepatocellular carcinoma (HCC). However, its exact clinical efficacy and safety is still not well investigated. In this study, we aimed to summarize the efficacy and safety of Kangai injection for patients with HBV-related HCC through the meta-analysis. METHODS All available randomized controlled trials (RCTs) and high-quality prospective cohort studies that investigated the efficacy and safety of Kangai injection for patients with HBV-related HCC were searched from ten electronic databases including Google Scholar, PubMed, Excerpt Medica Database (Embase), Cochrane Library, Medline, Web of Science (WOS), China National Knowledge Infrastructure (CNKI), China Scientific Journal Database (CSJ) Chinese, Biomedical Literature Database (CBM) and Wanfang Database. Papers in Chinese or English published from January 2000 to September 2020 will be included without any restrictions.Study selection and data extraction will be performed independently by 2 researchers. The clinical outcomes including overall response rate (ORR), disease control rate (DCR), quality of life (QoL), clinical symptoms, virological indicators, immune function and adverse events, were systematically evaluated. Review Manager 5.3 and Stata 14.0 were used for data analysis, and the quality of the literatures was also evaluated. RESULTS The results of this study will be published in a peer-reviewed journal, and provide a helpful evidence for clinicians to formulate the best postoperative adjuvant treatment strategy for HBV-related HCC patients. CONCLUSION Our study will draw an objective conclusion of the efficacy of Kangai injection on curative effect (ORR and DCR), clinical symptoms, virological indicators, QoL, and immune function in patients with HBV-related HCC. INPLASY REGISTRATION NUMBER INPLASY202090014.
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Affiliation(s)
- Wanpeng Wang
- Department of infectious diseases, Weifang People's Hospital
| | - Shurong Wang
- Quality Control Office, People's Hospital of Weifang Binhai Economic and Technological Development Zone
| | | | - Yan Liu
- Department of Gastroenterology, Weifang People's Hospital, Weifang
| | - Ying Mu
- Department of Gastroenterology, Liaocheng People's Hospital, Liaocheng, Shandong Province, PR China
| | - Jing Wang
- Department of Gastroenterology, Weifang People's Hospital, Weifang
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Zhuang J, Yin J, Lv S, Wang B, Mu Y. Advanced "lab-on-a-chip" to detect viruses - Current challenges and future perspectives. Biosens Bioelectron 2020; 163:112291. [PMID: 32421630 PMCID: PMC7215165 DOI: 10.1016/j.bios.2020.112291] [Citation(s) in RCA: 77] [Impact Index Per Article: 19.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2020] [Revised: 05/02/2020] [Accepted: 05/10/2020] [Indexed: 12/28/2022]
Abstract
Massive viral outbreaks draw attention to viruses that have not been thoroughly studied or understood. In recent decades, microfluidic chips, known as "lab-on-a-chip", appears as a promising tool for the detection of viruses. Here, we review the development of microfluidic chips that could be used in response to viral detection, specifically for viruses involved in more recent outbreaks. The advantages as well as the disadvantages of microfluidic systems are discussed and analyzed. We also propose ideas for future development of these microfluidic chips and we expect this advanced technology to be used in the future for viral outbreaks.
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Affiliation(s)
- Jianjian Zhuang
- College of Life Sciences, Zhejiang University, Hangzhou, 310058, Zhejiang, China
| | - Juxin Yin
- Research Centre for Analytical Instrumentation, Institute of Cyber-Systems and Control, State Key Laboratory of Industrial Control Technology, Zhejiang University, Hangzhou, Zhejiang Province, 310058, China; Cancer Institute (Key Laboratory of Cancer Prevention and Intervention, National Ministry of Education), The Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, 310009, China; Institute of Translational Medicine, Zhejiang University, Hangzhou, 310029, China
| | - Shaowu Lv
- Key Laboratory for Molecular Enzymology and Engineering of the Ministry of Education, College of Life Science, Jilin University, Changchun, 130000, China
| | - Ben Wang
- Cancer Institute (Key Laboratory of Cancer Prevention and Intervention, National Ministry of Education), The Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, 310009, China; Institute of Translational Medicine, Zhejiang University, Hangzhou, 310029, China
| | - Ying Mu
- Research Centre for Analytical Instrumentation, Institute of Cyber-Systems and Control, State Key Laboratory of Industrial Control Technology, Zhejiang University, Hangzhou, Zhejiang Province, 310058, China; College of Life Sciences, Zhejiang University, Hangzhou, 310058, Zhejiang, China.
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Yin J, Zou Z, Yin F, Liang H, Hu Z, Fang W, Lv S, Zhang T, Wang B, Mu Y. A Self-Priming Digital Polymerase Chain Reaction Chip for Multiplex Genetic Analysis. ACS Nano 2020; 14:10385-10393. [PMID: 32794742 DOI: 10.1021/acsnano.0c04177] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Digital PCR (polymerase chain reaction) is a powerful and attractive tool for the quantification of nucleic acids. However, the multiplex detection capabilities of this system are limited or require expensive instrumentation and reagents, all of which can hinder multiplex detection goals. Here, we propose strategies toward solving these issues regarding digital PCR. We designed and tested a self-priming digital PCR chip containing 6-plex detection capabilities using monochrome fluorescence, which has six detection areas and four-layer structures. This strategy achieved multiplex digital detection by the use of self-priming to preintroduce the specific reaction mix to a certain detection area. This avoids competition when multiple primer pairs coexist, allowing for multiplexing in a shorter time while using less reagents and low-cost instruments. This also prevents the digital PCR chip from experiencing long sample introduction time and evaporation. For further validation, this multiplex digital PCR chip was used to detect five types of EGFR (epidermal growth factor receptor) gene mutations in 15 blood samples from lung cancer patients. We conclude that this technique can precisely quantify EGFR mutations in high-performance diagnostics. This multiplex digital detection chip is a simple and inexpensive test intended for liquid biopsies. It can be applied and used in prenatal diagnostics, the monitoring of residual disease, rapid pathogen detection, and many other procedures.
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Affiliation(s)
- Juxin Yin
- Research Centre for Analytical Instrumentation, Institute of Cyber-Systems and Control, State Key Laboratory of Industrial Control Technology, Zhejiang University, Hangzhou, Zhejiang Province 310058, China
| | - Zheyu Zou
- College of Life Sciences, Zhejiang University, Hangzhou 310058, Zhejiang, China
| | - Fangfang Yin
- Weifang People's Hospital, Weifang 261000, China
| | - Hongxiao Liang
- Research Centre for Analytical Instrumentation, Institute of Cyber-Systems and Control, State Key Laboratory of Industrial Control Technology, Zhejiang University, Hangzhou, Zhejiang Province 310058, China
| | - Zhenming Hu
- Research Centre for Analytical Instrumentation, Institute of Cyber-Systems and Control, State Key Laboratory of Industrial Control Technology, Zhejiang University, Hangzhou, Zhejiang Province 310058, China
| | - Weibo Fang
- Research Centre for Analytical Instrumentation, Institute of Cyber-Systems and Control, State Key Laboratory of Industrial Control Technology, Zhejiang University, Hangzhou, Zhejiang Province 310058, China
| | - Shaowu Lv
- Key Laboratory for Molecular Enzymology and Engineering of the Ministry of Education, College of Life Science, Jilin University, Changchun 130000, China
| | - Tao Zhang
- Research Centre for Analytical Instrumentation, Institute of Cyber-Systems and Control, State Key Laboratory of Industrial Control Technology, Zhejiang University, Hangzhou, Zhejiang Province 310058, China
| | - Ben Wang
- Cancer Institute (Key Laboratory of Cancer Prevention and Intervention, National Ministry of Education), The Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310009, China
- Institute of Translational Medicine, Zhejiang University, Hangzhou 310029, China
| | - Ying Mu
- Research Centre for Analytical Instrumentation, Institute of Cyber-Systems and Control, State Key Laboratory of Industrial Control Technology, Zhejiang University, Hangzhou, Zhejiang Province 310058, China
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Pan Y, Qiu Q, Mu Y, Wu Z, Yu XP, He JQ. [Long-term prognosis of drug eluting stents implantation in elderly patients with unprotected left main coronary artery disease]. Zhonghua Yi Xue Za Zhi 2020; 100:1720-1724. [PMID: 32536093 DOI: 10.3760/cma.j.cn112137-20191030-02355] [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] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To analyze the clinical characteristics and long-term prognosis of implantation of drug-eluting stents (DES) for elderly patients with unprotected left main artery (ULM) disease. Methods: A total of 414 patients (327 males and 87 females) who underwent DES implantation were enrolled in the Department of Cardiology, Beijing Anzhen Hospital from January 2005 to March 2010, with a mean age of (61.5±10.7) years old. The patients were divided into two groups according to age: 300 cases in the group of age <70 years old, and 114 cases in the group of age ≥70 years old. The clinical characteristics and long-term prognosis of two groups were compared. Results: In the group of age ≥ 70 years old, the proportion of female was higher (31.6% vs 17.0%, P=0.001) and the incidence of chronic total occlusion (CTO) (P=0.020), hypertension (P=0.018) and cerebrovascular disease (P=0.013) were higher than those in the group of <70 years old. All-cause mortality and cardiac mortality were also higher than those in the group of <70 years old (P=0.025, P=0.013). The follow-up period was (21.4±9.6) months. After adjusting for multiple clinical factors, there were no statistical differences of incidence of the total major adverse cardiac and cerebral events (MACCE), myocardial infarction, cerebrovascular events, and revascularization recurrence between the two groups. But all-cause mortality (HR=3.790, 95%CI: 1.271-11.298, P=0.017) and cardiac mortality (HR=17.424, 95%CI: 2.440-124.410, P=0.004) in the group of age ≥70 years old were still remarkably higher than those in the group of <70 years old. Conclusions: Age is an independent risk factor for increased mortality after DES stent implantation in ULM disease. DES stent implantation in age ≥70 years old patients with ULM disease is considered feasible, but it needs to be treated with caution.
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Affiliation(s)
- Y Pan
- Third Ward, Department of Cardiology, Beijing Anzhen Hospital, Capital Medical University, Beijing 100029, China
| | - Q Qiu
- Department of Pharmacy, Beijing Anzhen Hospital, Capital Medical University, Beijing 100029, China
| | - Y Mu
- Department of Pharmacy, Beijing Anzhen Hospital, Capital Medical University, Beijing 100029, China
| | - Z Wu
- Department of Cardiology, Tongliao City Hospital, Tongliao 028000, China
| | - X P Yu
- Third Ward, Department of Cardiology, Beijing Anzhen Hospital, Capital Medical University, Beijing 100029, China
| | - J Q He
- Third Ward, Department of Cardiology, Beijing Anzhen Hospital, Capital Medical University, Beijing 100029, China
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Xu S, Cheng J, Meng X, Xu Y, Mu Y. Complete Genome and Comparative Genome Analysis of Lactobacillus reuteri YSJL-12, a Potential Probiotics Strain Isolated From Healthy Sow Fresh Feces. Evol Bioinform Online 2020; 16:1176934320942192. [PMID: 32782425 PMCID: PMC7385821 DOI: 10.1177/1176934320942192] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2020] [Accepted: 06/15/2020] [Indexed: 12/13/2022] Open
Abstract
Lactobacillus reuteri YSJL-12 was isolated from healthy sow fresh feces and used as probiotics additives previously. To investigate the genetic basis on probiotic potential and identify the genes in the strain, the complete genome of YSJL-12 was sequenced. Then comparative genome analysis on 9 strains of Lactobacillus reuteri was performed. The genome of YSJL-12 consisted of a circular 2,084,748 bp chromosome and 2 circular plasmids (51,906 and 15,134 bp). From among the 2065 protein-coding sequences (CDSs), the genes resistant to the environmental stress were identified. The function of COG (Clusters of Orthologous Group) protein genes was predicted, and the KEGG (Kyoto Encyclopedia of Genes and Genomes) pathways were analyzed. The comparative genome analysis indicated that the pan-genome contained a core genome of 1257 orthologous gene clusters, an accessory genome of 1064 orthologous gene clusters, and 1148 strain-specific genes, and the antibacterial mechanism among Lactobacillus reuteri strains might be different. The phylogenetic analysis and genomic collinearity revealed that the phylogenetic relationship among 9 strains of Lactobacillus reuteri was connected with host species and showed host specificity. The research could help us to better predict genes function and understand genetic basis on adapting to host gut in Lactobacillus reuteri YSJL-12.
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Affiliation(s)
- Su Xu
- College of Food Science, Northeast Agricultural University, Harbin, China
| | - Jianjun Cheng
- College of Food Science, Northeast Agricultural University, Harbin, China
| | - Xiangchen Meng
- College of Food Science, Northeast Agricultural University, Harbin, China
| | - Yan Xu
- College of Food Science, Northeast Agricultural University, Harbin, China
| | - Ying Mu
- College of Food Science, Northeast Agricultural University, Harbin, China
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Zheng R, Niu J, Wu S, Wang T, Wang S, Xu M, Chen Y, Dai M, Zhang D, Yu X, Tang X, Hu R, Ye Z, Shi L, Su Q, Yan L, Qin G, Wan Q, Chen G, Gao Z, Wang G, Shen F, Luo Z, Qin Y, Chen L, Huo Y, Li Q, Zhang Y, Liu C, Wang Y, Wu S, Yang T, Deng H, Chen L, Zhao J, Mu Y, Xu Y, Li M, Lu J, Wang W, Zhao Z, Xu Y, Bi Y, Ning G. Gender and age differences in the association between sleep characteristics and fasting glucose levels in Chinese adults. Diabetes Metab 2020; 47:101174. [PMID: 32659495 DOI: 10.1016/j.diabet.2020.07.001] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/20/2020] [Revised: 06/24/2020] [Accepted: 07/01/2020] [Indexed: 01/19/2023]
Abstract
AIM The present study examined the associations between night-time sleep duration, midday napping duration and bedtime, and fasting glucose levels, and whether or not such associations are dependent on gender and age. METHODS This study was a cross-sectional analysis of 172,901 adults aged≥40 years living in mainland China. Sleep duration was obtained by self-reports of bedtime at night, waking-up time the next morning and average napping duration at midday. Fasting plasma glucose (FPG)≥7.0mmol/L was defined as hyperglycaemia. Independent associations between night-time sleep duration, midday naptime duration and bedtime with hyperglycaemia were evaluated using regression models. RESULTS Compared with night-time sleep durations of 6-7.9h, both short (<6h) and long (≥8h) night-time sleep durations were significantly associated with an increased risk of hyperglycaemia in women [odds ratio (OR): 1.12, 95% confidence interval (CI): 1.01-1.29 and OR: 1.14, 95% CI: 1.08-1.21, respectively], and revealed a U-shaped distribution of risk in women and no significant association in men. Long midday nap durations (≥1h) were significantly but weakly associated with hyperglycaemia (OR: 1.04, 95% CI: 1.01-1.09) compared with no napping without interactions from gender or age, whereas the association between bedtime and fasting glucose levels did vary according to gender and age. CONCLUSION Night-time sleep duration, midday napping duration and bedtime were all independently associated with the risk of hyperglycaemia, and some of the associations between these sleep characteristics and hyperglycaemia were gender- and age-dependent.
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Affiliation(s)
- R Zheng
- Shanghai National Clinical Research Centre for Metabolic Diseases, Key Laboratory for Endocrine and Metabolic Diseases of the National Health Commission of China, Shanghai Institute of Endocrine and Metabolic Diseases, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, 197 Ruijin 2nd Road, Shanghai 200025, China
| | - J Niu
- Shanghai National Clinical Research Centre for Metabolic Diseases, Key Laboratory for Endocrine and Metabolic Diseases of the National Health Commission of China, Shanghai Institute of Endocrine and Metabolic Diseases, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, 197 Ruijin 2nd Road, Shanghai 200025, China
| | - S Wu
- Shanghai National Clinical Research Centre for Metabolic Diseases, Key Laboratory for Endocrine and Metabolic Diseases of the National Health Commission of China, Shanghai Institute of Endocrine and Metabolic Diseases, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, 197 Ruijin 2nd Road, Shanghai 200025, China
| | - T Wang
- Shanghai National Clinical Research Centre for Metabolic Diseases, Key Laboratory for Endocrine and Metabolic Diseases of the National Health Commission of China, Shanghai Institute of Endocrine and Metabolic Diseases, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, 197 Ruijin 2nd Road, Shanghai 200025, China
| | - S Wang
- Shanghai National Clinical Research Centre for Metabolic Diseases, Key Laboratory for Endocrine and Metabolic Diseases of the National Health Commission of China, Shanghai Institute of Endocrine and Metabolic Diseases, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, 197 Ruijin 2nd Road, Shanghai 200025, China
| | - M Xu
- Shanghai National Clinical Research Centre for Metabolic Diseases, Key Laboratory for Endocrine and Metabolic Diseases of the National Health Commission of China, Shanghai Institute of Endocrine and Metabolic Diseases, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, 197 Ruijin 2nd Road, Shanghai 200025, China
| | - Y Chen
- Shanghai National Clinical Research Centre for Metabolic Diseases, Key Laboratory for Endocrine and Metabolic Diseases of the National Health Commission of China, Shanghai Institute of Endocrine and Metabolic Diseases, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, 197 Ruijin 2nd Road, Shanghai 200025, China
| | - M Dai
- Shanghai National Clinical Research Centre for Metabolic Diseases, Key Laboratory for Endocrine and Metabolic Diseases of the National Health Commission of China, Shanghai Institute of Endocrine and Metabolic Diseases, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, 197 Ruijin 2nd Road, Shanghai 200025, China
| | - D Zhang
- Shanghai National Clinical Research Centre for Metabolic Diseases, Key Laboratory for Endocrine and Metabolic Diseases of the National Health Commission of China, Shanghai Institute of Endocrine and Metabolic Diseases, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, 197 Ruijin 2nd Road, Shanghai 200025, China
| | - X Yu
- Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - X Tang
- First Hospital of Lanzhou University, Lanzhou, China
| | - R Hu
- Zhejiang Provincial Centre for Disease Control and Prevention, Zhejiang, China
| | - Z Ye
- Zhejiang Provincial Centre for Disease Control and Prevention, Zhejiang, China
| | - L Shi
- Affiliated Hospital of Guiyang Medical College, Guiyang, China
| | - Q Su
- Xinhua Hospital Affiliated to Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - L Yan
- Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - G Qin
- First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Q Wan
- Affiliated Hospital of Luzhou Medical College, Luzhou, China
| | - G Chen
- Fujian Provincial Hospital, Fujian Medical University, Fuzhou, China
| | - Z Gao
- Dalian Municipal Central Hospital, Dalian Medical University, Dalian, China
| | - G Wang
- First Hospital of Jilin University, Changchun, China
| | - F Shen
- First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Z Luo
- First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Y Qin
- First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - L Chen
- Qilu Hospital of Shandong University, Jinan, China
| | - Y Huo
- Jiangxi Provincial People's Hospital Affiliated to Nanchang University, Nanchang, China
| | - Q Li
- Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Y Zhang
- Central Hospital of Shanghai Jiading District, Shanghai, China
| | - C Liu
- Jiangsu Province Hospital on Integration of Chinese and Western Medicine, Nanjing, China
| | - Y Wang
- First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - S Wu
- Karamay Municipal People's Hospital, Xinjiang, China
| | - T Yang
- First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - H Deng
- First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - L Chen
- Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - J Zhao
- Shandong Provincial Hospital affiliated to Shandong University, Jinan, China
| | - Y Mu
- Chinese People's Liberation Army General Hospital, Beijing, China
| | - Y Xu
- Clinical Trials Centre, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - M Li
- Shanghai National Clinical Research Centre for Metabolic Diseases, Key Laboratory for Endocrine and Metabolic Diseases of the National Health Commission of China, Shanghai Institute of Endocrine and Metabolic Diseases, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, 197 Ruijin 2nd Road, Shanghai 200025, China
| | - J Lu
- Shanghai National Clinical Research Centre for Metabolic Diseases, Key Laboratory for Endocrine and Metabolic Diseases of the National Health Commission of China, Shanghai Institute of Endocrine and Metabolic Diseases, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, 197 Ruijin 2nd Road, Shanghai 200025, China
| | - W Wang
- Shanghai National Clinical Research Centre for Metabolic Diseases, Key Laboratory for Endocrine and Metabolic Diseases of the National Health Commission of China, Shanghai Institute of Endocrine and Metabolic Diseases, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, 197 Ruijin 2nd Road, Shanghai 200025, China
| | - Z Zhao
- Shanghai National Clinical Research Centre for Metabolic Diseases, Key Laboratory for Endocrine and Metabolic Diseases of the National Health Commission of China, Shanghai Institute of Endocrine and Metabolic Diseases, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, 197 Ruijin 2nd Road, Shanghai 200025, China.
| | - Y Xu
- Shanghai National Clinical Research Centre for Metabolic Diseases, Key Laboratory for Endocrine and Metabolic Diseases of the National Health Commission of China, Shanghai Institute of Endocrine and Metabolic Diseases, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, 197 Ruijin 2nd Road, Shanghai 200025, China.
| | - Y Bi
- Shanghai National Clinical Research Centre for Metabolic Diseases, Key Laboratory for Endocrine and Metabolic Diseases of the National Health Commission of China, Shanghai Institute of Endocrine and Metabolic Diseases, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, 197 Ruijin 2nd Road, Shanghai 200025, China.
| | - G Ning
- Shanghai National Clinical Research Centre for Metabolic Diseases, Key Laboratory for Endocrine and Metabolic Diseases of the National Health Commission of China, Shanghai Institute of Endocrine and Metabolic Diseases, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, 197 Ruijin 2nd Road, Shanghai 200025, China
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Liu Z, Dong Y, Zhu M, Mu Y, Chen L. Xiaoaiping injection as adjunct therapy for patients with advanced esophageal carcinoma: A protocol for a systematic review and meta-analysis. Medicine (Baltimore) 2020; 99:e20984. [PMID: 32590810 PMCID: PMC7328972 DOI: 10.1097/md.0000000000020984] [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] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
BACKGROUND Esophageal carcinoma (EC) is one of the worst malignant digestive neoplasms with a strong tendency of invasion and metastasis. Despite the improvement of diagnostic and therapeutic methods in the past decades, the prognosis of EC remains unsatisfactory. Xiaoaiping injection (XAPI), a famous traditional Chinese herbal medicine, has been widely applied as a promising adjunctive drug for EC. However, the exact effects and safety of XAPI have yet to be systematically investigated. We aimed to summarize the efficacy and safety of XAPI for the treatment of advanced EC through the meta-analysis, in order to provide scientific reference for the design of future clinical trials. METHODS Relevant randomized controlled trials (RCTs) were searched from Cochrane Library, PubMed, Google Scholar, Web of Science, Excerpt Medica Database, Medline, China National Knowledge Infrastructure, Chinese Biomedical Literature Database, China Scientific Journal Database and Wanfang Database. Papers in English or Chinese published from January 2000 to May 2020 will be included without any restrictions.Study selection and data extraction will be performed independently by 2 investigators. The clinical outcomes including overall response rate, complete response rate, overall survival, Disease-free survival, quality of life, immune function and adverse events, were systematically evaluated. Review Manager 5.3 and Stata 14.0 were used for data analysis, and the quality of the studies was also evaluated. RESULTS The results of this study will be published in a peer-reviewed journal, and provide more evidence-based guidance in clinical practice. CONCLUSION Our study will draw an objective conclusion of the effects of XAPI combined with conventional treatment for advanced EC and provide a helpful evidence for clinicians to formulate the best postoperative adjuvant treatment strategy for EC patients. INPLASY REGISTRATION NUMBER INPLASY202050094.
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Affiliation(s)
| | - Yanling Dong
- Department of Infectious Diseases, People's Hospital of Weifang Binhai Economic and Technological Development Zone, Weifang
| | | | - Ying Mu
- Department of Gastroenterology, Liaocheng People's Hospital, Liaocheng
| | - Lemei Chen
- Department of General Surgery, People's Hospital of Weifang Binhai Economic and Technological Development Zone, Weifang, Shandong Province, China
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66
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Wang B, Liu XM, Liu ZN, Wang Y, Han X, Lian AB, Mu Y, Jin MH, Liu JY. Human hair follicle-derived mesenchymal stem cells: Isolation, expansion, and differentiation. World J Stem Cells 2020; 12:462-470. [PMID: 32742563 PMCID: PMC7360986 DOI: 10.4252/wjsc.v12.i6.462] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/27/2020] [Revised: 05/18/2020] [Accepted: 05/29/2020] [Indexed: 02/06/2023] Open
Abstract
Hair follicles are easily accessible skin appendages that protect against cold and potential injuries. Hair follicles contain various pools of stem cells, such as epithelial, melanocyte, and mesenchymal stem cells (MSCs) that continuously self-renew, differentiate, regulate hair growth, and maintain skin homeostasis. Recently, MSCs derived from the dermal papilla or dermal sheath of the human hair follicle have received attention because of their accessibility and broad differentiation potential. In this review, we describe the applications of human hair follicle-derived MSCs (hHF-MSCs) in tissue engineering and regenerative medicine. We have described protocols for isolating hHF-MSCs from human hair follicles and their culture condition in detail. We also summarize strategies for maintaining hHF-MSCs in a highly proliferative but undifferentiated state after repeated in vitro passages, including supplementation of growth factors, 3D suspension culture technology, and 3D aggregates of MSCs. In addition, we report the potential of hHF-MSCs in obtaining induced smooth muscle cells and tissue-engineered blood vessels, regenerated hair follicles, induced red blood cells, and induced pluripotent stem cells. In summary, the abundance, convenient accessibility, and broad differentiation potential make hHF-MSCs an ideal seed cell source of regenerative medical and cell therapy.
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Affiliation(s)
- Bo Wang
- Department of Toxicology, School of Public Health, Jilin University, Changchun 130021, Jilin Province, China
| | - Xiao-Mei Liu
- Department of Toxicology, School of Public Health, Jilin University, Changchun 130021, Jilin Province, China
| | - Zi-Nan Liu
- Department of Toxicology, School of Public Health, Jilin University, Changchun 130021, Jilin Province, China
| | - Yuan Wang
- Department of Toxicology, School of Public Health, Jilin University, Changchun 130021, Jilin Province, China
| | - Xing Han
- Department of Toxicology, School of Public Health, Jilin University, Changchun 130021, Jilin Province, China
| | - Ao-Bo Lian
- Department of Toxicology, School of Public Health, Jilin University, Changchun 130021, Jilin Province, China
| | - Ying Mu
- Research Center for Analytical Instrumentation, Institute of Cyber-Systems and Control, State Key Laboratory of Industrial Control Technology, Zhejiang University, Hangzhou 310000, Zhejiang Province, China
| | - Ming-Hua Jin
- Department of Toxicology, School of Public Health, Jilin University, Changchun 130021, Jilin Province, China
| | - Jin-Yu Liu
- Department of Toxicology, School of Public Health, Jilin University, Changchun 130021, Jilin Province, China
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67
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Li J, Han B, Sun G, Zheng Z, Mu Y, Chi J. Chinese patent medicine (Jinlong Capsule) for gastric cancer: Protocol for a systematic review and meta-analysis. Medicine (Baltimore) 2020; 99:e20532. [PMID: 32502010 PMCID: PMC7306397 DOI: 10.1097/md.0000000000020532] [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] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
BACKGROUND JLC has been widely applied as a promising adjunctive drug for GC. However, the exact effects and safety of JLC have yet to be systematically investigated. We aimed to summarize the efficacy and safety of JLC for the treatment of advanced GC through the meta-analysis, in order to provide scientific reference for the design of future clinical trials. METHODS The protocol followed Preferred Reporting Items for Systematic Reviews and Meta-Analyses Protocols. Relevant randomized controlled trials were searched from Cochrane Library, PubMed, Web of Science (WOS), Excerpt Medica Database (Embase), Chinese Biomedical Literature Database (CBM), China National Knowledge Infrastructure (CNKI), China Scientific Journal Database (VIP), and Wanfang Database. Papers in English or Chinese published from their inception to January 2020 will be included without any restrictions.Study selection and data extraction will be performed independently by 2 investigators. The clinical outcomes including overall response rate, complete response rate, overall survival, Disease-free survival, quality of life (QoL), immune function, and adverse events, were systematically evaluated. Review Manager 5.3 and Stata 14.0 were used for data analysis, and the quality of the studies was also evaluated. RESULTS AND CONCLUSION The findings of this research will be published in a peer-reviewed journal, and provide more evidence-based guidance in clinical practice. INTERNATIONAL PLATFORM OF REGISTERED SYSTEMATIC REVIEW AND META-ANALYSIS PROTOCOLS (INPLASY) REGISTRATION NUMBER:: INPLASY202040105. URL: https://inplasy.com/inplasy-2020-4-0105/.
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Affiliation(s)
| | | | - Guangzong Sun
- Department of Emergency, People's Hospital of Weifang Binhai Economic and Technological Development Zone
| | - Zhong Zheng
- Department of Gastroenterology, Weifang People's Hospital, Weifang
| | - Ying Mu
- Department of Gastroenterology, Liaocheng People's Hospital, Liaocheng
| | - Jingxia Chi
- Quality Management Office, People's Hospital of Weifang Binhai Economic and Technological Development Zone, Weifang, Shandong Province, China
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68
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Abstract
Digital PCR (dPCR) is a powerful technique capable of absolute quantification of nucleic acids with good accuracy. Droplet-based dPCR (ddPCR), among others, is one of the most important dPCR techniques. However, the surface tension-controlled droplets may suffer from fusion/fission due to the vigorous temperature change in PCR thermal cycling. Besides, the free movement of droplets makes them unsuitable for real-time fluorescence monitoring. In this paper, we first developed a photoimmobilized planar droplet array (PIPDA) by using a photocurable polyurethane as the continuous oil phase. It is found that uniform water-in-oil droplets of various sizes can be readily generated, and more importantly, the oil phase can be rapidly solidified in just a few seconds upon exposure to UV irradiation. This process will leave the droplets immobilized in the accommodation chamber as a stable planar array and, thus, effectively prevent the movement, coalescence, and breakup of droplets. In addition, a novel multilayered chip design has been proposed, which can thoroughly overcome the evaporation issue that commonly exists in polydimethylsiloxane (PDMS)-based dPCR chips. With these two innovations, the ddPCR experiment could be performed in a robust manner, and shows a promising potential in the development of real-time ddPCR technique. These features may therefore enable the wide application of PIPDA-based ddPCR in various fields.
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Affiliation(s)
- Yu He
- Research Center for Analytical Instrumentation, Institute of Cyber-Systems and Control, State Key Laboratory of Industrial Control Technology, Zhejiang University, Hangzhou 310027, China
| | - Juxin Yin
- Research Center for Analytical Instrumentation, Institute of Cyber-Systems and Control, State Key Laboratory of Industrial Control Technology, Zhejiang University, Hangzhou 310027, China
| | - Wenshuai Wu
- College of Life Sciences, Zhejiang University, Hangzhou 310027, China
| | - Hongxiao Liang
- Research Center for Analytical Instrumentation, Institute of Cyber-Systems and Control, State Key Laboratory of Industrial Control Technology, Zhejiang University, Hangzhou 310027, China
| | - Futianchun Zhu
- Research Center for Analytical Instrumentation, Institute of Cyber-Systems and Control, State Key Laboratory of Industrial Control Technology, Zhejiang University, Hangzhou 310027, China
| | - Ying Mu
- Research Center for Analytical Instrumentation, Institute of Cyber-Systems and Control, State Key Laboratory of Industrial Control Technology, Zhejiang University, Hangzhou 310027, China.,College of Life Sciences, Zhejiang University, Hangzhou 310027, China
| | - Hongliang Fan
- Department of Environmental Medicine, Institute of Hygiene, Zhejiang Academy of Medical Sciences, Hangzhou 310013, China
| | - Tao Zhang
- Research Center for Analytical Instrumentation, Institute of Cyber-Systems and Control, State Key Laboratory of Industrial Control Technology, Zhejiang University, Hangzhou 310027, China
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Zou M, Mu Y, Chai X, Ouyang M, Yu LJ, Zhang L, Meurer J, Chi W. The critical function of the plastid rRNA methyltransferase, CMAL, in ribosome biogenesis and plant development. Nucleic Acids Res 2020; 48:3195-3210. [PMID: 32095829 PMCID: PMC7102989 DOI: 10.1093/nar/gkaa129] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2019] [Revised: 02/12/2020] [Accepted: 02/18/2020] [Indexed: 12/12/2022] Open
Abstract
Methylation of nucleotides in ribosomal RNAs (rRNAs) is a ubiquitous feature that occurs in all living organisms. The formation of methylated nucleotides is performed by a variety of RNA-methyltransferases. Chloroplasts of plant cells result from an endosymbiotic event and possess their own genome and ribosomes. However, enzymes responsible for rRNA methylation and the function of modified nucleotides in chloroplasts remain to be determined. Here, we identified an rRNA methyltransferase, CMAL (Chloroplast MraW-Like), in the Arabidopsis chloroplast and investigated its function. CMAL is the Arabidopsis ortholog of bacterial MraW/ RsmH proteins and accounts to the N4-methylation of C1352 in chloroplast 16S rRNA, indicating that CMAL orthologs and this methyl-modification nucleotide is conserved between bacteria and the endosymbiont-derived eukaryotic organelle. The knockout of CMAL in Arabidopsis impairs the chloroplast ribosome accumulation and accordingly reduced the efficiency of mRNA translation. Interestingly, the loss of CMAL leads not only to defects in chloroplast function, but also to abnormal leaf and root development and overall plant morphology. Further investigation showed that CMAL is involved in the plant development probably by modulating auxin derived signaling pathways. This study uncovered the important role of 16S rRNA methylation mediated by CMAL in chloroplast ribosome biogenesis and plant development.
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Affiliation(s)
- Meijuan Zou
- Photosynthesis Research Center, Key Laboratory of Photobiology, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China
| | - Ying Mu
- Photosynthesis Research Center, Key Laboratory of Photobiology, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China
| | - Xin Chai
- Photosynthesis Research Center, Key Laboratory of Photobiology, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China.,University of Chinese Academy of Sciences, Beijing 100049, China
| | - Min Ouyang
- Photosynthesis Research Center, Key Laboratory of Photobiology, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China
| | - Long-Jiang Yu
- Photosynthesis Research Center, Key Laboratory of Photobiology, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China
| | - Lixin Zhang
- Photosynthesis Research Center, Key Laboratory of Photobiology, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China.,Key Laboratory of Plant Stress Biology, State Key Laboratory of Cotton Biology, School of Life Sciences, Henan University, Kaifeng 475004, China
| | - Jörg Meurer
- Plant Molecular Biology, Faculty of Biology, Ludwig-Maximilians-University, Munich, D-82152 Planegg-Martinsried, Germany
| | - Wei Chi
- Photosynthesis Research Center, Key Laboratory of Photobiology, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China.,University of Chinese Academy of Sciences, Beijing 100049, China
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Abstract
Treatment of iPr[NCN]Br (2,6-(2,6-iPr2C6H3C[double bond, length as m-dash]N)2C6H3Br) with nBuLi in THF and the subsequent addition of 1 equiv. of CoCl2, CoCl2(Ph3P)2, and CoBr2 gave pincer Co(ii) complexes {iPr[NCN]Co(μ-Cl)}2 (1d), iPr[NCN]CoClPh3P (1d-Ph3P), and iPr[NCN]CoBr2·Li(THF)4 (1d-LiBr) respectively in moderate yields, whereas the slow addition of in situ prepared iPr[NCN]Li to CoCl2 in THF afforded an unexpected mixed-valence cobalt(i/ii) complex κ2C,N,η6-iPr[NCN]Co-κN-CoCl3·Li(THF)4 (2d). Complex 2d was probably formed via a disproportionation reaction of the iPr[NCN]Co(ii) species with excess CoCl2 during the reaction. Nevertheless, addition of CoCl2 to in situ formed 1d-THF at room temperature did not lead to 2d but gave a trinuclear Co(ii) complex {iPr[NCN]Co(μ-Cl)(μ-Br/Cl)}2Co (1d-CoCl2) in moderate yield. Similar reactions using ligands containing small ortho groups in the imine moieties R[NCN]Br (2,6-(2,6-Me2C6H3C[double bond, length as m-dash]N)2C6H3Br, Me[NCN]Br; 2,6-(2,6-Et2C6H3C[double bond, length as m-dash]N)2C6H3Br, Et[NCN]Br; 2,6-(2,4,6-Me3C6H2C[double bond, length as m-dash]N)2C6H3Br, Mes[NCN]Br) and CoBr2, regardless of the reactant addition sequence, afforded mixed-valence cobalt(i/ii) complexes {κ2C,N,η6-R[NCN]Co-κN-CoBr(μ-Br)}2 (Me[NCN] (2a), Et[NCN] (2b), and Mes[NCN] (2c)), suggesting that the bulkiness of the ortho-groups in the imine moieties of the ligands plays an important role in the disproportionation reaction. In the presence of PMe3, Co(ii) complexes κ2C,N-R[NCN]CoBr(PMe3)2 (3a-d) and a bisligated cobalt(ii) complex κ3N,C,N-κ2C,N-iPr[NCN]2CoPMe3 (4d) can be prepared respectively in high yields. The molecular structures of 1d-LiBr, 1d-CoCl2, 2b, 2d, 3a, and 4d were confirmed by X-ray crystallographic analysis and the detailed mechanisms of the disproportionation reaction were proposed.
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Affiliation(s)
- Li-Cheng Huang
- College of Chemistry, Jilin University, Changchun 130012, China.
| | - Jing-Shun Zhang
- College of Chemistry, Jilin University, Changchun 130012, China.
| | - Teng Jia
- College of Chemistry, Jilin University, Changchun 130012, China.
| | - Ying Mu
- College of Chemistry, Jilin University, Changchun 130012, China.
| | - Wei Gao
- College of Chemistry, Jilin University, Changchun 130012, China.
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Yin J, Zou Z, Hu Z, Zhang S, Zhang F, Wang B, Lv S, Mu Y. A "sample-in-multiplex-digital-answer-out" chip for fast detection of pathogens. Lab Chip 2020; 20:979-986. [PMID: 32003380 DOI: 10.1039/c9lc01143a] [Citation(s) in RCA: 77] [Impact Index Per Article: 19.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Point-of-care (POC) testing offers rapid diagnostic results. However, the quantification of current methods is performed using standard curves and external references, and not direct and absolute quantification. This paper describes an integrated multiplex digital recombinase polymerase amplification (ImdRPA) microfluidic chip which combines DNA extraction, multiplex digital RPA and fluorescence detection together in one chip, creating a "sample-in-multiplex-digital-answer-out" system. Multi-layer soft lithography technology was used, with polydimethylsiloxane (PDMS) as the chip material and a glass slide as the substrate. This microfluidic chip has a six-layer structure and screw microvalve control function. The sample preparation for the chip involved magnetic bead-based nucleic acid extraction, which was completed within 15 min without any instrument dependence. The dRPA region was divided into 4 regions (3 positive detection areas and 1 negative control area) and included a total of 12 800 chambers, with each chamber being able to contain a volume of 2.7 nL. The screw valve allowed for the reaction components of each specific goal to be pre-embedded in different regions of the chambers. The reagents were passively driven into the dRPA region using vacuum-based self-priming introduction. Furthermore, we successfully demonstrated that the chip can simultaneously detect three species of pathogenic bacteria within 45 min and give digital quantitative results without the need to establish a standard curve in contaminated milk. Moreover, the detection limit of this ImdRPA microfluidic chip was found to be 10 bacterial cells for each kind of pathogen. These characteristics enhance its applicability for rapid detection of foodborne bacteria at the point-of-care (POC). We envision that the further development of this integrated chip will lead to rapid, multiplex and accurate detection of foodborne bacteria in a feasible manner.
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Affiliation(s)
- Juxin Yin
- Research Centre for Analytical Instrumentation, Institute of Cyber-Systems and Control, State Key Laboratory of Industrial Control Technology, Zhejiang University, Hangzhou, Zhejiang Province 310058, P. R. China. and Cancer Institute (Key Laboratory of Cancer Prevention and Intervention, National Ministry of Education), The Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310009, China and Institute of Translational Medicine, Zhejiang University, Hangzhou 310029, China
| | - Zheyu Zou
- Research Centre for Analytical Instrumentation, Institute of Cyber-Systems and Control, State Key Laboratory of Industrial Control Technology, Zhejiang University, Hangzhou, Zhejiang Province 310058, P. R. China. and College of Life Sciences, Zhejiang University, Hangzhou 310058, Zhejiang, P. R. China
| | - Zhenming Hu
- Research Centre for Analytical Instrumentation, Institute of Cyber-Systems and Control, State Key Laboratory of Industrial Control Technology, Zhejiang University, Hangzhou, Zhejiang Province 310058, P. R. China.
| | - Shan Zhang
- Research Centre for Analytical Instrumentation, Institute of Cyber-Systems and Control, State Key Laboratory of Industrial Control Technology, Zhejiang University, Hangzhou, Zhejiang Province 310058, P. R. China. and College of Life Sciences, Zhejiang University, Hangzhou 310058, Zhejiang, P. R. China
| | | | - Ben Wang
- Cancer Institute (Key Laboratory of Cancer Prevention and Intervention, National Ministry of Education), The Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310009, China and Institute of Translational Medicine, Zhejiang University, Hangzhou 310029, China
| | - Shaowu Lv
- Key Laboratory for Molecular Enzymology and Engineering of the Ministry of Education, College of Life Science, Jilin University, Changchun 130000, China.
| | - Ying Mu
- Research Centre for Analytical Instrumentation, Institute of Cyber-Systems and Control, State Key Laboratory of Industrial Control Technology, Zhejiang University, Hangzhou, Zhejiang Province 310058, P. R. China.
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Yan B, Mu Y, Cui M, Liu L. Clinicopathological significance and prognostic implication of CD44 and its splice variants (v3 and v6) in colorectal cancer. Transl Cancer Res 2020; 9:1215-1224. [PMID: 35117466 PMCID: PMC8797301 DOI: 10.21037/tcr.2020.02.12] [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: 09/10/2019] [Accepted: 12/26/2019] [Indexed: 11/06/2022]
Abstract
Background Methods Results Conclusions
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Affiliation(s)
- Bing Yan
- Departments of Oncology, Hainan Hospital of PLA General Hospital, Sanya 572000, China
| | - Ying Mu
- Department of Nutritional, The Fifth Medical Center of PLA General Hospital, Beijing 100039, China
| | - Meiqi Cui
- Department of Outpatient, Hainan Hospital of PLA General Hospital, Sanya 572000, China
| | - Long Liu
- Department of Traditional Chinese Medicine, Tianyou Hospital of Tongji University, Shanghai 200331, China
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Yin Z, Zhang X, Li J, Jiao Y, Kong Q, Mu Y. Identification of Imprinted Genes and Their Differentially Methylated Regions in Porcine. RUSS J GENET+ 2020. [DOI: 10.1134/s1022795419120135] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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74
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Mu Y, Pham M, Podany AT, Cory TJ. Evaluating emtricitabine + rilpivirine + tenofovir alafenamide in combination for the treatment of HIV-infection. Expert Opin Pharmacother 2020; 21:389-397. [PMID: 31957507 DOI: 10.1080/14656566.2020.1713096] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Introduction: Antiretroviral therapy (ART) is recommended for all people who are living with HIV to suppress viral load and to stop the progression and transmission of HIV-1. Fixed-dose combinations of antiretrovirals largely reduce pill burden.Areas covered: The authors first provide an overview of the use of non-nucleoside reverse transcriptase inhibitor (NNRTI) based therapy in HIV care. They then summarize the properties of each drug in the fixed-dose combination of tenofovir alafenamide/emtricitabine/rilpivirine/(TAF/FTC/RPV). The efficacy and safety of each component and the combination as a whole are reviewed: FTC is non-inferior to lamivudine (3TC) at assessed dosages; TAF was non-inferior to tenofovir disoproxil fumarate (TDF); the viral efficacy of RPV is non-inferior with EFV at the assessed dosage; TAF/FTC/RPV is non-inferior in efficacy but shows less of a decline in bone mineral density and renal function compared to TDF/FTC/RPV. Finally, adverse effects and drug-drug interaction data with FTC/RPV/TAF are discussed.Expert opinion: TAF/FTC/RPV can be used as an initial regimen for people living with HIV whose HIV RNA <100,000 copies/ml and CD4 cell count > 200 cells/mm3 when INSTI-based regimens are not a treatment option. Future antiretroviral therapy development may focus on dual therapy-based regimens containing RPV, particularly as long-acting formulations.
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Affiliation(s)
- Ying Mu
- Department of Clinical Pharmacy and Translational Science, University of Tennessee Health Science Center College of Pharmacy, Memphis, USA
| | - Michelle Pham
- Department of Pharmacy Practice and Science, University of Nebraska Medical Center, Omaha, USA
| | - Anthony T Podany
- Department of Pharmacy Practice and Science, University of Nebraska Medical Center, Omaha, USA
| | - Theodore J Cory
- Department of Clinical Pharmacy and Translational Science, University of Tennessee Health Science Center College of Pharmacy, Memphis, USA
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Mu Y, Wang JQ, Han SD, Pan J, Li JH, Wang GM. Enhanced Room-Temperature Phosphorescence of an Organic Ligand in 3D Hybrid Materials Assisted by Adjacent Halogen Atom. Inorg Chem 2020; 59:972-975. [DOI: 10.1021/acs.inorgchem.9b03088] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Ying Mu
- College of Chemistry and Chemical Engineering, Qingdao University, Qingdao, Shandong 266071, China
| | - Jun-Qing Wang
- College of Chemistry and Chemical Engineering, Qingdao University, Qingdao, Shandong 266071, China
| | - Song-De Han
- College of Chemistry and Chemical Engineering, Qingdao University, Qingdao, Shandong 266071, China
| | - Jie Pan
- College of Chemistry and Chemical Engineering, Qingdao University, Qingdao, Shandong 266071, China
| | - Jin-Hua Li
- College of Chemistry and Chemical Engineering, Qingdao University, Qingdao, Shandong 266071, China
| | - Guo-Ming Wang
- College of Chemistry and Chemical Engineering, Qingdao University, Qingdao, Shandong 266071, China
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Song T, Liu N, Tong X, Li F, Mu X, Mu Y. Half-sandwich rare-earth metal complexes bearing a C 5Me 4-C 6H 4-o-CH 2NMe 2 ligand: synthesis, characterization and catalytic properties for isoprene, 1-hexene and MMA polymerization. Dalton Trans 2019; 48:17840-17851. [PMID: 31777884 DOI: 10.1039/c9dt04029c] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
A new ortho-dimethylaminomethylphenyl-tetramethylcyclopentadienyl ligand C5Me4H-C6H4-o-CH2NMe2 (HL) and a series of rare-earth metal complexes bearing this ligand were synthesized. Of these complexes, two binuclear alkyl complexes [(C5Me4-C6H4-o-CH2N(Me)CH2-μ)Ln(CH2SiMe3)]2 (Ln = Sc (1a) and Y (1b)) were obtained from the alkane elimination reaction of the free ligand with Ln(CH2SiMe3)3(THF)2, followed by an intramolecular C-H activation process of a NMe group in the ligand with a CH2SiMe3 group, two binuclear dichloro complexes (C5Me4-C6H4-o-CH2NMe2)2Y2Cl4[LiCl(THF)2] (2a) and [(C5Me4-C6H4-o-CH2NMe2)LuCl(μ-Cl)]2 (2b) were synthesized by the reaction of anhydrous yttrium or lutetium trichloride with the lithium salt of the ligand LiL, and the binuclear bis(borohydrido) complexes [(C5Me4-C6H4-o-CH2NMe2)Ln(μ-BH4)BH4]2 (Ln = Sm (3a) and Nd (3b)) were synthesized by the reaction of Ln(BH4)3(THF)3 (Ln = Sm and Nd) with the lithium salt of the ligand. The molecular structures of all complexes 1a, 1b, 2a, 2b, 3a and 3b were determined by single-crystal X-ray crystallography. Upon activation with AlR3/Ph3CB(C6F5)4, MAO or MMAO, the binuclear alkyl complexes 1a and 1b show good catalytic activity for isoprene cis-1,4 enriched regioselective polymerization and moderate catalytic activity for 1-hexene polymerization. Complexes 3a and 3b were studied as catalysts for methyl methacrylate polymerization reaction under different conditions and were found to show moderate to high catalytic activity.
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Affiliation(s)
- Tingting Song
- The State Key Laboratory for Supramolecular Structure and Materials, School of Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130012, People's Republic of China.
| | - Ning Liu
- The State Key Laboratory for Supramolecular Structure and Materials, School of Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130012, People's Republic of China.
| | - Xiaobo Tong
- The State Key Laboratory for Supramolecular Structure and Materials, School of Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130012, People's Republic of China.
| | - Feng Li
- The State Key Laboratory for Supramolecular Structure and Materials, School of Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130012, People's Republic of China.
| | - Xiaoyue Mu
- The State Key Laboratory for Supramolecular Structure and Materials, School of Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130012, People's Republic of China.
| | - Ying Mu
- The State Key Laboratory for Supramolecular Structure and Materials, School of Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130012, People's Republic of China.
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Liu F, Shi J, Zhang Y, Lian A, Han X, Zuo K, Liu M, Zheng T, Zou F, Liu X, Jin M, Mu Y, Li G, Su G, Liu J. NANOG Attenuates Hair Follicle-Derived Mesenchymal Stem Cell Senescence by Upregulating PBX1 and Activating AKT Signaling. Oxid Med Cell Longev 2019; 2019:4286213. [PMID: 31885790 PMCID: PMC6914946 DOI: 10.1155/2019/4286213] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/09/2019] [Revised: 09/24/2019] [Accepted: 10/12/2019] [Indexed: 02/06/2023]
Abstract
Stem cells derived from elderly donors or harvested by repeated subculture exhibit a marked decrease in proliferative capacity and multipotency, which not only compromises their therapeutic potential but also raises safety concerns for regenerative medicine. NANOG-a well-known core transcription factor-plays an important role in maintaining the self-renewal and pluripotency of stem cells. Unfortunately, the mechanism that NANOG delays mesenchymal stem cell (MSC) senescence is not well-known until now. In our study, we showed that both ectopic NANOG expression and PBX1 overexpression (i) significantly upregulated phosphorylated AKT (p-AKT) and PARP1; (ii) promoted cell proliferation, cell cycle progression, and osteogenesis; (iii) reduced the number of senescence-associated-β-galactosidase- (SA-β-gal-) positive cells; and (iv) downregulated the expression of p16, p53, and p21. Western blotting and dual-luciferase activity assays showed that ectopic NANOG expression significantly upregulated PBX1 expression and increased PBX1 promoter activity. In contrast, PBX1 knockdown by RNA interference in hair follicle- (HF-) derived MSCs that were ectopically expressing NANOG resulted in the significant downregulation of p-AKT and the upregulation of p16 and p21. Moreover, blocking AKT with the PI3K/AKT inhibitor LY294002 or knocking down AKT via RNA interference significantly decreased PBX1 expression, while increasing p16 and p21 expression and the number of SA-β-gal-positive cells. In conclusion, our findings show that NANOG delays HF-MSC senescence by upregulating PBX1 and activating AKT signaling and that a feedback loop likely exists between PBX1 and AKT signaling.
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Affiliation(s)
- Feilin Liu
- Department of Toxicology, School of Public Health, Jilin University, Changchun, China
- Department of Ophthalmology, The Second Hospital of Jilin University, Changchun, China
| | - Jiahong Shi
- Department of Toxicology, School of Public Health, Jilin University, Changchun, China
- Department of Ultrasound, The China-Japan Union Hospital of Jilin University, Changchun, China
| | - Yingyao Zhang
- Department of Toxicology, School of Public Health, Jilin University, Changchun, China
| | - Aobo Lian
- Department of Toxicology, School of Public Health, Jilin University, Changchun, China
| | - Xing Han
- Department of Toxicology, School of Public Health, Jilin University, Changchun, China
| | - Kuiyang Zuo
- Department of Toxicology, School of Public Health, Jilin University, Changchun, China
| | - Mingsheng Liu
- Department of Toxicology, School of Public Health, Jilin University, Changchun, China
| | - Tong Zheng
- Department of Toxicology, School of Public Health, Jilin University, Changchun, China
| | - Fei Zou
- Department of Toxicology, School of Public Health, Jilin University, Changchun, China
| | - Xiaomei Liu
- Department of Toxicology, School of Public Health, Jilin University, Changchun, China
| | - Minghua Jin
- Department of Toxicology, School of Public Health, Jilin University, Changchun, China
| | - Ying Mu
- Research Center for Analytical Instrumentation, Institute of Cyber-Systems and Control, State Key Laboratory of Industrial Control Technology, Zhejiang University, Hangzhou, China
| | - Gang Li
- Department of Orthopaedics & Traumatology, Li Ka Shing Institute of Health Sciences, Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, Hong Kong, China
| | - Guanfang Su
- Department of Ophthalmology, The Second Hospital of Jilin University, Changchun, China
| | - Jinyu Liu
- Department of Toxicology, School of Public Health, Jilin University, Changchun, China
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Mu Y, Sun J, Wang S, Wang L, Xu B. Study of the interfacial activity of wheat germ lipase. Quality Assurance and Safety of Crops & Foods 2019. [DOI: 10.3920/qas2018.1307] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Affiliation(s)
- Y. Mu
- School of Food and Biological Engineering, Jiangsu University, Xuefu Road 301, Zhenjiang 212013, Jiangsu, China P.R
| | - J. Sun
- School of Food and Biological Engineering, Jiangsu University, Xuefu Road 301, Zhenjiang 212013, Jiangsu, China P.R
| | - S. Wang
- School of Food and Biological Engineering, Jiangsu University, Xuefu Road 301, Zhenjiang 212013, Jiangsu, China P.R
| | - L. Wang
- School of Food and Biological Engineering, Jiangsu University, Xuefu Road 301, Zhenjiang 212013, Jiangsu, China P.R
| | - B. Xu
- School of Food and Biological Engineering, Jiangsu University, Xuefu Road 301, Zhenjiang 212013, Jiangsu, China P.R
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Zhi Y, Yao Z, Jiang W, Xia H, Shi Z, Mu Y, Liu X. Conjugated Microporous Polymers as Heterogeneous Photocatalysts for Efficient Degradation of a Mustard-Gas Simulant. ACS Appl Mater Interfaces 2019; 11:37578-37585. [PMID: 31522491 DOI: 10.1021/acsami.9b10958] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Compared with traditional metal-based photosensitizers, heterogeneous and organic photocatalysts with visible-light activity are more environmentally friendly and sustainable. The simultaneous introduction of electron-rich and electron-deficient units in donor-acceptor typed conjugated microporous polymer (CMP) photocatalysts can significantly enhance their visible-light harvesting and separation efficiency of photogenerated carriers. Here, two carbazole-based CMPs (CzBSe-CMP and CzBQn-CMP) were successfully constructed through a cost-effective process. They show inherent porosity with large Brunauer-Emmett-Teller surface area and excellent thermal and chemical stability. Their photoelectric properties, energy levels, optical band gaps, transient photocurrent response, and photocatalytic activity could be conveniently tailored through tuning the electron-deficient moiety in polymer networks. More importantly, CzBSe-CMP was found to be a superior solid photocatalyst for selective photo-oxidation of mustard gas simulant 2-chloroethyl ethyl sulfide into a nontoxic product by using molecular oxygen as a sustainable oxygen source under visible-light illumination. In addition, the obtained CMP-based photocatalysts also showed excellent recyclability and could be reutilized through adding more simulants or a simple separation procedure. The current contribution provides great application prospects for CMPs as metal-free, solid photocatalysts in organic transformation and environmental protection.
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Xing P, Mu Y, Wang S, Ma D, Lin J, Liu H, Han-Zhang H, Lizaso A, Xiang J, Mao X, Hao X, Li J. P1.01-91 Clinical Outcomes of Various Resistance Mechanisms of Osimertinib in Chinese Advanced Non-Small Cell Lung Cancer Patients. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.806] [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: 10/25/2022]
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81
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Mu Y, Xing P, Li Y, Hao X, Ying J, Li J. P2.16-08 Clinical Characteristics and Outcomes of Patients with BRAF Mutated Non-Small Cell Lung Cancer. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.1875] [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: 10/25/2022]
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Dai W, Xie S, Wei X, Zhang Y, Feng W, Mu Y, Zhang R, Liao X, Wu C, Zhou H, Yang X, Shi Q, Li Q. P2.16-04 Single-Port Video-Assisted Thoracoscopic Surgery Reduces Patient-Reported Symptom Burden in Patients Undergoing Lung Resection. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.1871] [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: 10/25/2022]
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Song T, He J, Liang L, Liu N, Li F, Tong X, Mu X, Mu Y. Titanium and zirconium complexes bearing new tridentate [OSO] bisphenolato-based ligands: synthesis, characterization and catalytic properties for alkene polymerization. Dalton Trans 2019; 48:13719-13731. [PMID: 31469372 DOI: 10.1039/c9dt03225h] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A number of new sulfur-bridged tridentate [OSO] bisphenolato-based ligand precursors S(2-CH2-4-tBu-6-R-C6H2OH)2 [R = CMe3 (H2L1), CMe2Ph (H2L2), CMePh2 (H2L3), CPh3 (H2L4), and C(p-Tol)3 (H2L5)] were synthesized by reactions of Na2S·9H2O with 2 eq. of the corresponding 2-(bromomethyl)-4-(tert-butyl)-6-R-phenol. Their neutral titanium complexes [S(2-CH2-4-tBu-6-R-C6H2O)2]TiCl2 [R = CMe3 (1), CMe2Ph (2), CMePh2 (3), CPh3 (4), and C(p-Tol)3 (5)] were synthesized in high yields by direct HCl-elimination reactions of TiCl4 with the corresponding ligand precursors in toluene. Ionic titanium complexes [NHEt3][S(2-CH2-4-tBu-6-R-C6H2O)2TiCl3] [R = CMe3 (6), CMePh2 (7)] and [NH2Et2][S(2-CH2-4-tBu-6-R-C6H2O)2TiCl3] [R = CMe3 (8) and CMePh2 (9)] were obtained in high yields from the reactions of TiCl4 with the corresponding ligand precursors in the presence of 2 eq. of triethylamine or diethylamine. Neutral zirconium complexes [S(2-CH2-4-tBu-6-R-C6H2O)2]ZrCl2(THF) [R = CMe2Ph (10·THF), and CMePh2 (11·THF)] were synthesized by reactions of ZrCl4 with 1 eq. of the dilithium salt of the corresponding ligand precursors Li2L in THF. The new titanium and zirconium complexes were characterized by 1H and 13C NMR, IR and elemental analyses. The molecular structures of complexes 4, 6 and 10·THF were determined by single-crystal X-ray diffraction analysis. The X-ray crystallography analysis reveals that titanium complex 4 has a five-coordinating environment surrounding the central metal atom, while the titanium complex 6 and the THF-solvated zirconium complex 10·THF possess a six-coordinating pseudo-octahedral environment around the central metal atom. Upon activation with MAO or AliBu3/Ph3CB(C6F5)4, all these titanium and zirconium complexes exhibit moderate to high catalytic activities for ethylene polymerization and ethylene/1-hexene copolymerization with moderate to high comonomer incorporation, and the ionic titanium complexes 6, 7, 8 and 9 show lower catalytic activity than their corresponding neutral complexes under similar conditions.
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Affiliation(s)
- Tingting Song
- The State Key Laboratory for Supramolecular Structure and Materials, School of Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130012, People's Republic of China.
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Yin J, Suo Y, Zou Z, Sun J, Zhang S, Wang B, Xu Y, Darland D, Zhao JX, Mu Y. Integrated microfluidic systems with sample preparation and nucleic acid amplification. Lab Chip 2019; 19:2769-2785. [PMID: 31365009 PMCID: PMC8876602 DOI: 10.1039/c9lc00389d] [Citation(s) in RCA: 70] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
Rapid, efficient and accurate nucleic acid molecule detection is important in the screening of diseases and pathogens, yet remains a limiting factor at point of care (POC) treatment. Microfluidic systems are characterized by fast, integrated, miniaturized features which provide an effective platform for qualitative and quantitative detection of nucleic acid molecules. The nucleic acid detection process mainly includes sample preparation and target molecule amplification. Given the advancements in theoretical research and technological innovations to date, nucleic acid extraction and amplification integrated with microfluidic systems has advanced rapidly. The primary goal of this review is to outline current approaches used for nucleic acid detection in the context of microfluidic systems. The secondary goal is to identify new approaches that will help shape future trends at the intersection of nucleic acid detection and microfluidics, particularly with regard to increasing disease and pathogen detection for improved diagnosis and treatment.
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Affiliation(s)
- Juxin Yin
- Research Centre for Analytical Instrumentation, Institute of Cyber-Systems and Control, State Key Laboratory of Industrial Control Technology, Zhejiang University, Hangzhou, 310058, China.
| | - Yuanjie Suo
- Research Centre for Analytical Instrumentation, Institute of Cyber-Systems and Control, State Key Laboratory of Industrial Control Technology, Zhejiang University, Hangzhou, 310058, China.
| | - Zheyu Zou
- Research Centre for Analytical Instrumentation, Institute of Cyber-Systems and Control, State Key Laboratory of Industrial Control Technology, Zhejiang University, Hangzhou, 310058, China.
| | - Jingjing Sun
- Research Centre for Analytical Instrumentation, Institute of Cyber-Systems and Control, State Key Laboratory of Industrial Control Technology, Zhejiang University, Hangzhou, 310058, China.
| | - Shan Zhang
- Research Centre for Analytical Instrumentation, Institute of Cyber-Systems and Control, State Key Laboratory of Industrial Control Technology, Zhejiang University, Hangzhou, 310058, China.
| | - Beng Wang
- Cancer Institute (Key Laboratory of Cancer Prevention and Intervention, National Ministry of Education), The Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, 310009 China and Institute of Translational Medicine, Zhejiang University, Hangzhou, 310029 China
| | - Yawei Xu
- College of Biological and Pharmaceutical Engineering, Jilin Agricultural Science and Technology University, Jilin, 132000 China
| | - Diane Darland
- Department of Biology, University of North Dakota, USA.
| | | | - Ying Mu
- Research Centre for Analytical Instrumentation, Institute of Cyber-Systems and Control, State Key Laboratory of Industrial Control Technology, Zhejiang University, Hangzhou, 310058, China.
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Mu Y, Patters BJ, Midde NM, He H, Kumar S, Cory TJ. Tobacco and Antiretrovirals Modulate Transporter, Metabolic Enzyme, and Antioxidant Enzyme Expression and Function in Polarized Macrophages. Curr HIV Res 2019; 16:354-363. [PMID: 30706821 PMCID: PMC6446460 DOI: 10.2174/1570162x17666190130114531] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [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: 10/12/2018] [Revised: 01/24/2019] [Accepted: 01/27/2019] [Indexed: 02/07/2023]
Abstract
BACKGROUND Cigarette smoking increases systemic oxidative stress, inflammation, and viral replication in individuals with HIV. Macrophages are infected during HIV infection and serve as an important reservoir throughout the process. Macrophages exist in two phenotypes, the classically activated M1 macrophage and alternatively activated M2 macrophage. The expression of drug efflux transporters and metabolic enzymes, which have direct effects on intracellular drug concentrations, differ between the pro-inflammatory M1 macrophage and the anti-inflammatory M2 macrophage. OBJECTIVE To further explain the role of tobacco use in worsened outcomes in the HIV + population receiving antiretroviral therapy. METHODS Western blotting was used to examine macrophage polarization and expression of drug efflux transporters, CYP enzymes, and antioxidant enzymes. The arginase assay was used to measure arginase activity. Cytokine production was measured using the human multiplex inflammatory cytokine assay kit. The 8-OHdG DNA Damage Quantification Direct Kit was used to quantify DNA damage. Viral replication under the influence of tobacco and antiretroviral drug use was measured by p24 Elisa. RESULTS We observed phenotypic shifts from M1 to M2 with both individual and combination treatments with cigarette smoke condensate and the protease inhibitor antiretroviral drug lopinavir. These shifts lead to changes in cytokine production, the expression of CYP enzymes, anti-oxidant enzymes, and drug efflux transporters, as well as changes in viral replication. CONCLUSION This data suggest a mechanism by which tobacco use impairs HIV antiretroviral therapy to increase intracellular drug concentrations in this important cellular reservoir.
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Affiliation(s)
- Ying Mu
- Department of Clinical Pharmacy and Translational Science, University of Tennessee Health Science Center College of Pharmacy, Memphis, United States
| | - Benjamin J Patters
- Department of Pharmaceutical Science, University of Tennessee Health Science Center College of Pharmacy, Memphis, United States
| | - Narasimha M Midde
- Department of Pharmaceutical Science, University of Tennessee Health Science Center College of Pharmacy, Memphis, United States
| | - Hui He
- Department of Clinical Pharmacy and Translational Science, University of Tennessee Health Science Center College of Pharmacy, Memphis, United States
| | - Santosh Kumar
- Department of Pharmaceutical Science, University of Tennessee Health Science Center College of Pharmacy, Memphis, United States
| | - Theodore J Cory
- Department of Clinical Pharmacy and Translational Science, University of Tennessee Health Science Center College of Pharmacy, Memphis, United States
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86
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Abstract
Bacillus coagulans is a probiotic bacterium that produces spores. Due to its excellent stability, it has been widely used in medicine, food and chemical industry. Recent studies have shown that B. coagulans has therapeutic effects on intestinal diseases, such as acute diarrhoea, irritable bowel syndrome, antibiotic-related diarrhoea, constipation and colitis via modulation of the microbiota composition, host immunity and metabolism. Additionally, toxicological experiments and a large number of clinical observations have showed that B. coagulans is safe and has no effect of mutagenicity, teratogenicity or genotoxicity. This review summarises the latest advances associated with B. coagulans, from its biological features, probable action mechanisms, toxicity, and medical applications.
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Affiliation(s)
- Y. Mu
- Gastroenterology department, Liaohe Oilfield Central Hospital, Panjin, Liaoning 124010, China P.R
| | - Y. Cong
- Department of Clinical Laboratory, Traditional Chinese Medicine Hospital Affiliated to Southwest Medical University, Luzhou, Sichuan 646000, China P.R
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87
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Wang JQ, Mu Y, Han SD, Pan J, Li JH, Wang GM. Room-Temperature Phosphorescence with Excitation-Energy Dependence and External Heavy-Atom Effect in Hybrid Zincophosphites. Inorg Chem 2019; 58:9476-9481. [DOI: 10.1021/acs.inorgchem.9b01338] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Jun-Qing Wang
- College of Chemistry and Chemical Engineering, Qingdao University, Shandong 266071, China
| | - Ying Mu
- College of Chemistry and Chemical Engineering, Qingdao University, Shandong 266071, China
| | - Song-De Han
- College of Chemistry and Chemical Engineering, Qingdao University, Shandong 266071, China
| | - Jie Pan
- College of Chemistry and Chemical Engineering, Qingdao University, Shandong 266071, China
| | - Jin-Hua Li
- College of Chemistry and Chemical Engineering, Qingdao University, Shandong 266071, China
| | - Guo-Ming Wang
- College of Chemistry and Chemical Engineering, Qingdao University, Shandong 266071, China
- Key Laboratory for Preparation and Application of Ordered Structural Materials of Guangdong Province, Shantou University, Shantou, Guangdong 515063, People’s Republic of China
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88
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Chen J, Xin T, Gaoshan J, Li Q, Zou K, Tan S, Cheng Y, Liu Y, Chen J, Wang H, Mu Y, Jiang L, Tang K. The association between work related factors and breastfeeding practices among Chinese working mothers: a mixed-method approach. Int Breastfeed J 2019; 14:28. [PMID: 31297138 PMCID: PMC6598252 DOI: 10.1186/s13006-019-0223-z] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/04/2018] [Accepted: 06/18/2019] [Indexed: 11/10/2022] Open
Abstract
Background Breastfeeding rates remain low in China and some mothers stop breastfeeding shortly after returning to work. Our study aimed to investigate the association between breastfeeding practices of working mothers and their employment status (formal versus informal) and occupational fields (agriculture related, industry related, and business and white collar). We also identified key work-related factors that influence breastfeeding practices in Chinese working mothers. Methods This is a mixed-method research consisted of two components. We conducted a cross-sectional study of 10,408 breastfeeding mothers with children under 12 months old from 12 regions in China from July 2017 to January 2018. Multiple logistic regression was used to calculate adjusted odds ratios (AdjORs) and 95% confidence intervals (CIs) for breastfeeding practices. For the qualitative component, semi-structured interviews were conducted with 84 breastfeeding mothers in the study areas from July to December 2017, Content analysis was used for the qualitative component. Results Agriculture related occupations were positively associated with early initiation of breastfeeding (AdjOR 1.32, 95% CI 1.15, 1.51), current breastfeeding (AdjOR 1.76, 95% CI 1.41, 2.20), ever breastfed (AdjOR 1.69, 95% CI 1.09, 2.62), exclusive breastfeeding (AdjOR 1.30, 95% CI: 1.04, 1.62), and predominant breastfeeding (AdjOR 1.72, 95% CI 1.44, 2.05). Business and white collar occupations were positively associated with early initiation (AdjOR1.38, 95% CI 1.23, 1.56) and ever breastfed (AdjOR 1.64, 95% CI 1.12, 2.39), and inversely associated with predominant breastfeeding (AdjOR 0.81, 95% CI 0.68, 0.95). For industry related and business and white collar occupations, informal employment was negatively related to current breastfeeding. In qualitative analysis, four main themes were developed to identify key work-related factors that influence breastfeeding practices: 1) employment benefits; 2) commute time; 3) workplace environment; 4) labor intensity. Mothers who experienced difficulties in one or more of the above would choose to lower breastfeeding frequency or stop breastfeeding. Conclusions Having flexible work schedules and proximity of workplace to home can assist continuance of breastfeeding. Policies promoting supportive breastfeeding environment at work ought to be implemented. Additionally, informally employed mothers require more attention due to limited legal protection.
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Affiliation(s)
- Jiawen Chen
- 1School of Nursing, Peking University Health Science Center, 38 Xueyuan Road, Haidian District, Beijing, 100191 China.,10Research Center for Public Health, Tsinghua University, Haidian District, Beijing, 100084 China
| | - Tong Xin
- 2Department of Global Health, School of Public Health, Peking University Health Science Center, 38 Xueyuan Road, Haidian District, Beijing, 100191 China
| | - Junjian Gaoshan
- United Nations Population Fund China office, 14 Liangmahe Nanlu, Chaoyang District, Beijing, 100600 China
| | - Qiuhong Li
- 1School of Nursing, Peking University Health Science Center, 38 Xueyuan Road, Haidian District, Beijing, 100191 China
| | - Kaiyue Zou
- 1School of Nursing, Peking University Health Science Center, 38 Xueyuan Road, Haidian District, Beijing, 100191 China
| | - Shihui Tan
- 4School of Basic Medical Sciences, Peking University Health Science Center, 38 Xueyuan Road, Haidian District, Beijing, 100191 China
| | - Yuhan Cheng
- 5Department of Psychology, Northeastern University, 360 Huntington Ave, Boston, MA 02115 USA
| | - Yuning Liu
- 6Department of Global Health and Population, Harvard University T. H Chan School of Public Health, 677 Huntington Ave, Boston, MA 02115 USA
| | - Jingyi Chen
- 6Department of Global Health and Population, Harvard University T. H Chan School of Public Health, 677 Huntington Ave, Boston, MA 02115 USA
| | - Hanyu Wang
- 7Institute for Medical Humanities, Peking University Health Science Center, 38 Xueyuan Road, Haidian District, Beijing, 100191 China
| | - Ying Mu
- 8Breast Surgery Department, Beijing Shijitan Hospital, Capital Medical University, Chaoyang District, Beijing, 100038 China
| | - Li Jiang
- 9Peking University People's Hospital, No. 11 Xizhimen South Ave., Xicheng District, Beijing, 100044 China
| | - Kun Tang
- 10Research Center for Public Health, Tsinghua University, Haidian District, Beijing, 100084 China
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89
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Abstract
Bacillus coagulans is a probiotic bacterium that produces spores. Due to its excellent stability, it has been widely used in medicine, food and chemical industry. Recent studies have shown that B. coagulans has therapeutic effects on intestinal diseases, such as acute diarrhoea, irritable bowel syndrome, antibiotic-related diarrhoea, constipation and colitis via modulation of the microbiota composition, host immunity and metabolism. Additionally, toxicological experiments and a large number of clinical observations have showed that B. coagulans is safe and has no effect of mutagenicity, teratogenicity or genotoxicity. This review summarises the latest advances associated with B. coagulans, from its biological features, probable action mechanisms, toxicity, and medical applications.
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Affiliation(s)
- Y Mu
- 1 Gastroenterology department, Liaohe Oilfield Central Hospital, Panjin, Liaoning 124010, China P.R
| | - Y Cong
- 2 Department of Clinical Laboratory, Traditional Chinese Medicine Hospital Affiliated to Southwest Medical University, Luzhou, Sichuan 646000, China P.R
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90
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He H, Buckley M, Britton B, Mu Y, Warner K, Kumar S, Cory TJ. Polarized macrophage subsets differentially express the drug efflux transporters MRP1 and BCRP, resulting in altered HIV production. Antivir Chem Chemother 2019; 26:2040206617745168. [PMID: 29343083 PMCID: PMC5777552 DOI: 10.1177/2040206617745168] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Introduction Macrophages play an important role in HIV, where they are a cellular reservoir. Macrophages are polarized into two phenotypes: pro-inflammatory M1 macrophages and anti-inflammatory M2 macrophages, which may have altered expression of drug efflux transporters, including BCRP and MRP1. These differences may result in subtherapeutic concentrations of antiretrovirals inside of macrophages and viral replication. Methods U937 and U1 cells were polarized to the M1 or M2 phenotype via IFN-γ and LPS, or IL-4, IL-13, and LPS. Transporter expression was assessed via PCR and Western blotting, and transporter function was assessed via fluorescent dye assays. Transporter function was blocked with the inhibitors MK571 or KO143. Protein expression was confirmed in monocyte-derived macrophages. p24 production was assessed in U1 cells via enzyme-linked immunosorbent assay. Results mRNA and protein analysis demonstrated higher expression of MRP1 in M1 macrophages, while BCRP expression was downregulated in M1 macrophages. Treatment with inhibitors of transporter function decreased the difference in intracellular fluorescence between polarized macrophages. Differences in protein expression, which were observed with U937 cells, were confirmed in monocyte-derived macrophages. M1, but not M2 cells treated with MK571, showed decreased p24 production, consistent with reported MRP1 transporter expression. Conclusions These results support our hypothesis that there is differential expression of MRP1 and BCRP on M1 and M2 polarized macrophages and suggests that these differences may result in altered intracellular concentrations of antiretrovirals in macrophages and alter viral production in these cells. Targeting these differences may be a strategy to decrease viral replication in HIV-infected individuals.
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Affiliation(s)
- Hui He
- 1 Department of Clinical Pharmacy, College of Pharmacy, University of Tennessee Health Science Center, Memphis, TN, USA
| | - Merrion Buckley
- 1 Department of Clinical Pharmacy, College of Pharmacy, University of Tennessee Health Science Center, Memphis, TN, USA
| | - Bernard Britton
- 1 Department of Clinical Pharmacy, College of Pharmacy, University of Tennessee Health Science Center, Memphis, TN, USA
| | - Ying Mu
- 1 Department of Clinical Pharmacy, College of Pharmacy, University of Tennessee Health Science Center, Memphis, TN, USA
| | - Kristin Warner
- 1 Department of Clinical Pharmacy, College of Pharmacy, University of Tennessee Health Science Center, Memphis, TN, USA
| | - Santosh Kumar
- 2 Department of Pharmacy Science, College of Pharmacy, University of Tennessee Health Science Center, Memphis, TN, USA
| | - Theodore J Cory
- 1 Department of Clinical Pharmacy, College of Pharmacy, University of Tennessee Health Science Center, Memphis, TN, USA
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91
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Yang CC, Ma J, Li T, Luo W, Mu Y, Tang HP, Lan XJ. Structural Organization and Functional Activity of the Orthologous TaGLW7 Genes in Bread Wheat (Triticum aestivum L.). RUSS J GENET+ 2019. [DOI: 10.1134/s1022795419050168] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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92
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Xu Y, Hu J, Zhu Q, Song Q, Mu Y. Co-detection of ALDH1A1, ABCG2, ALCAM and CD133 in three A549 subpopulations at the single cell level by one-step digital RT-PCR. Integr Biol (Camb) 2019; 10:364-369. [PMID: 29808880 DOI: 10.1039/c8ib00042e] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Cancer stem-like cells (CSCs) displaying the properties of normal stem cells have become the main culprit associated with cancer transportation and recurrence. As of now, various CSC functions and marker genes have been identified due to the heterogeneity of cancer, such as aldehyde dehydrogenase (ALDH), the second member of the ABC transporter G-subfamily (ABCG2), activated leukocyte cell adhesion molecule (ALCAM) and CD133. To investigate these markers, most conventional approaches are bulk-based strategies, which may veil the disparity of single cells' gene expression. In this study, one-step digital RT-PCR at the single cell level was developed to co-determine the expression of ALDH1A1, ABCG2, ALCAM and CD133 genes in A549 cancer stem cells that perform high ALDH activities (ALDH+ A549 cells), as well as in ALDH- A549 cells and A549 cells, with 36, 20 and 20 cell samples each. The results demonstrated that, when compared to single ALDH- or A549 cells, the majority of single ALDH+ A549 cells displayed a 1.5- and 2.0-fold increase in the gene expression of ALDH1A1 and ALCAM (P < 0.001), respectively. However, for ABCG2 and CD133, there was no significant difference (P > 0.05), which means that they are not appropriate as co-indicated markers to identify ALDH+ A549 cells. Conclusively, as a single cell level approach, one-step digital RT-PCR has potential in exploring efficient co-detection markers for the classification and identification of CSCs.
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Affiliation(s)
- Yanan Xu
- Research Center for Analytical Instrumentation, Institute of Cyber Systems and Control, State Key Laboratory of Industrial Control Technology, Zhejiang University, Hangzhou 310027, Zhejiang, P. R. China.
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93
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Mu Y, Zhou Y, Wang Y, Li W, Zhou L, Lu X, Gao P, Gao M, Zhao Y, Wang Q, Wang Y, Xu G. Serum Metabolomics Study of Nonsmoking Female Patients with Non-Small Cell Lung Cancer Using Gas Chromatography-Mass Spectrometry. J Proteome Res 2019; 18:2175-2184. [PMID: 30892048 DOI: 10.1021/acs.jproteome.9b00069] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The incidence of nonsmoking female patients with non-small cell lung cancer (NSCLC) has increased in recent decades; however, the pathogenesis of patients is unclear, and early diagnosis biomarkers are in urgent need. In this study, 136 nonsmoking female subjects (65 patients with NSCLC, 6 patients with benign lung tumors, and 65 healthy controls) were enrolled, and their metabolic profiling was investigated by using pseudotargeted gas chromatography-mass spectrometry. A total of 56 annotated metabolites were found and verified to be significantly different in nonsmoking females with NSCLC compared with the control. The metabolic profiling was featured by disturbed energy metabolism, amino acid metabolism, oxidative stress, lipid metabolism, and so on. Cysteine, serine, and 1-monooleoylglycerol were defined as the biomarker panel for the diagnosis of NSCLC patients. 98.5 and 91.4% of subjects were correctly distinguished in the discovery and validation sets, respectively. The biomarker panel was also useful for the diagnosis of in situ malignancy patients, with an accuracy of 97.7 and 97.8% in the discovery and validation sets, respectively. The study provides a biomarker panel for the auxiliary diagnosis of nonsmoking females with NSCLC.
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Affiliation(s)
- Ying Mu
- The First Affiliated Hospital of Dalian Medical University , Dalian Medical University , Dalian 116000 , China.,The Dalian Branch, the Library of Liaoning University of Traditional Chinese Medicine , Dalian 116600 , China
| | - Yang Zhou
- CAS Key Laboratory of Separation Science for Analytical Chemistry , Dalian Institute of Chemical Physics, Chinese Academy of Sciences , Dalian 116023 , China.,The Second Affiliated Hospital of Dalian Medical University , Dalian Medical University , Dalian 116027 , China
| | - Yanfeng Wang
- CAS Key Laboratory of Separation Science for Analytical Chemistry , Dalian Institute of Chemical Physics, Chinese Academy of Sciences , Dalian 116023 , China.,University of Chinese Academy of Sciences , Beijing 100049 , China
| | - Wei Li
- The First Affiliated Hospital of Dalian Medical University , Dalian Medical University , Dalian 116000 , China
| | - Lina Zhou
- CAS Key Laboratory of Separation Science for Analytical Chemistry , Dalian Institute of Chemical Physics, Chinese Academy of Sciences , Dalian 116023 , China
| | - Xin Lu
- CAS Key Laboratory of Separation Science for Analytical Chemistry , Dalian Institute of Chemical Physics, Chinese Academy of Sciences , Dalian 116023 , China
| | - Peng Gao
- Clinical Laboratory, Dalian Sixth People's Hospital , Dalian 116031 , China
| | - Mingyang Gao
- The First Affiliated Hospital of Dalian Medical University , Dalian Medical University , Dalian 116000 , China
| | - Yanhui Zhao
- The Dalian Branch, the Library of Liaoning University of Traditional Chinese Medicine , Dalian 116600 , China
| | - Qi Wang
- The Second Affiliated Hospital of Dalian Medical University , Dalian Medical University , Dalian 116027 , China
| | - Yanfu Wang
- The First Affiliated Hospital of Dalian Medical University , Dalian Medical University , Dalian 116000 , China
| | - Guowang Xu
- CAS Key Laboratory of Separation Science for Analytical Chemistry , Dalian Institute of Chemical Physics, Chinese Academy of Sciences , Dalian 116023 , China
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94
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Xing P, Mu Y, Hao X, Wang Y, Li J. Data from real world to evaluate the efficacy of osimertinib in non-small cell lung cancer patients with central nervous system metastasis. Clin Transl Oncol 2019; 21:1424-1431. [DOI: 10.1007/s12094-019-02071-5] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2018] [Accepted: 02/23/2019] [Indexed: 12/25/2022]
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95
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Hatami E, Mu Y, Shields DN, Chauhan SC, Kumar S, Cory TJ, Yallapu MM. Mannose-decorated hybrid nanoparticles for enhanced macrophage targeting. Biochem Biophys Rep 2019; 17:197-207. [PMID: 30723809 PMCID: PMC6351286 DOI: 10.1016/j.bbrep.2019.01.007] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2018] [Revised: 01/11/2019] [Accepted: 01/16/2019] [Indexed: 12/25/2022] Open
Abstract
Our goal was to design nanocarriers that specifically target and deliver therapeutics to polarized macrophages. Mannose receptors are highly overexpressed on polarized macrophages. In this study, we constructed Pluronic® -F127 polymer and tannic acid (TA) based nanoparticles (F127-TA core nanoparticles) with varying mannose densities. The particle size of the optimized mannose-decorated F127-TA hybrid nanoparticles (MDNPs) was found to be ~ 265 nm with a negative zeta potential of ~ - 4.5 mV. No significant changes in the size and zeta potentials of nanoparticles were observed, which demonstrated structural integrity and stability of the nanoformulation. Physicochemical characteristics of MDNPs were evaluated by FTIR and TGA and demonstrated the presence of mannose units on surface nanoparticles. A mannose-dependent cellular targeting and uptake of MDNPs was found in U937 macrophages. The uptake process was found to vary directly with time and volume of MDNPs nanoparticles. The uptake pattern is higher in M2 than M1. This behavior was also evident from the instantaneous and superior binding profile of M2 macrophage lysate protein with MDNPs over that of M1 macrophage lysate protein. These results demonstrated that an appropriate mannose ligand density was confirmed, suggesting efficient targeting of M2. Altogether, these data support that the MDNPs formulation could serve as a targeted therapeutic guide in the generation of nanomedicine to treat various conditions as an anti-inflammation therapy.
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Affiliation(s)
- Elham Hatami
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Tennessee Health Science Center, Memphis, TN 38163, USA
| | - Ying Mu
- Department of Clinical Pharmacy and Translational Science, College of Pharmacy, University of Tennessee Health Science Center, Memphis, TN 38163, USA
| | | | - Subhash C. Chauhan
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Tennessee Health Science Center, Memphis, TN 38163, USA
| | - Santosh Kumar
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Tennessee Health Science Center, Memphis, TN 38163, USA
| | - Theodore J. Cory
- Department of Clinical Pharmacy and Translational Science, College of Pharmacy, University of Tennessee Health Science Center, Memphis, TN 38163, USA
| | - Murali M. Yallapu
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Tennessee Health Science Center, Memphis, TN 38163, USA
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96
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Xu J, Mu X, Zhang Y, Su Q, Ni J, Mu Y. Constrained Geometry Nitrogen-Functionalised Diphenylcyclopentadienyl Chromium (III) Complex: Synthesis, Structure and Catalytic Properties for Ethylene Polymerisation. Journal of Chemical Research 2019. [DOI: 10.3184/030823406778521400] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
A bidentate ligand 1-[2-( N,N-dimethylaminophenyl)]-3, 4-biphenylcyclopentadiene 1, as well as its corresponding constrained geometry chromium complex dichloro-η5-[1-(2- N,N-dimethylaminophenyl)-3,4-diphenylcyclopentadienyl] chromium (III) 2 have been synthesised and characterised. When activated with Al( iBu)3 and Ph3C[B(C6F5)4], complex 2 exhibits reasonable catalytic activity for ethylene polymerisation, producing polyethylenes with moderate molecular weights and melting points. The effects of polymerisation temperature, ethylene pressure, B/Cr and Al/Cr ratios on catalytic activity were studied.
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Affiliation(s)
- Jiansheng Xu
- Key Laboratory for Supramolecular Structure and Materials of Ministry of Education, School of Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130021, People's Republic of China
| | - Xiaoyue Mu
- Key Laboratory for Supramolecular Structure and Materials of Ministry of Education, School of Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130021, People's Republic of China
| | - Yuetao Zhang
- Key Laboratory for Supramolecular Structure and Materials of Ministry of Education, School of Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130021, People's Republic of China
| | - Qing Su
- Key Laboratory for Supramolecular Structure and Materials of Ministry of Education, School of Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130021, People's Republic of China
| | - Jianguo Ni
- Key Laboratory for Supramolecular Structure and Materials of Ministry of Education, School of Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130021, People's Republic of China
| | - Ying Mu
- Key Laboratory for Supramolecular Structure and Materials of Ministry of Education, School of Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130021, People's Republic of China
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97
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Li X, Zhu D, Gao W, Zhang Y, Mu Y. Synthesis, structures and luminescent properties of [ZnCl2(2,6-bis {1-(phenylimino)ethyl}pyridine)]. Journal of Chemical Research 2019. [DOI: 10.3184/030823406777946699] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The complex 2, 6-Bis[1-(phenylimino)ethyl pyridine ZnCl2 (3) was synthesised via the reaction of ZnCl2 with the 2,6-bis[1-(phenylimino)ethyl]pyridine (L3) in CH2Cl2 and its structure determined by single-crystal X-ray diffraction. The geometry of 3 can be best described as distorted trigonal bipyramidal. 3 has blue luminescence at room temperature in solution and the solid state which is assumed to be from a π*→π transition centred on the ligand. The Zn(II) centre plays a key role in enhancing fluorescent emission of the ligand.
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Affiliation(s)
- Xuefu Li
- School of Chemistry, Jilin University, Chang Chun 130012, People's Republic of China
| | - Dongsheng Zhu
- School of Chemistry, Jilin University, Chang Chun 130012, People's Republic of China
| | - Wei Gao
- School of Chemistry, Jilin University, Chang Chun 130012, People's Republic of China
| | - Yuetao Zhang
- School of Chemistry, Jilin University, Chang Chun 130012, People's Republic of China
| | - Ying Mu
- School of Chemistry, Jilin University, Chang Chun 130012, People's Republic of China
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98
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Wang B, Mu Y, Zhang H, Shi H, Chen G, Yu Y, Yang Z, Li J, Yu J. Red Room-Temperature Phosphorescence of CDs@Zeolite Composites Triggered by Heteroatoms in Zeolite Frameworks. ACS Cent Sci 2019; 5:349-356. [PMID: 30834323 PMCID: PMC6396386 DOI: 10.1021/acscentsci.8b00844] [Citation(s) in RCA: 58] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/15/2018] [Indexed: 05/18/2023]
Abstract
Carbon dots (CDs) with red-emitting room-temperature phosphorescence (RTP) are rarely reported because of the increasing nonradiative decay of the excited states and the decreasing energy gap between the excited states and ground states. Herein, we demonstrate a facile strategy for modulating the RTP properties of CDs in terms of donor-acceptor energy transfer (EnT) in the CDs-in-zeolite system. Upon tuning of the heteroatoms (Zn2+, Mn2+) doped in the aluminophosphate zeolite frameworks, CDs@zeolite composites with green and red phosphorescence have been prepared via in situ hydrothermal synthesis. In such composites, the zeolite matrix provides an efficient confinement role in stabilizing the triplet states of CDs. Significantly, the Mn-doped zeolite could act as an energy acceptor allowing EnT from excitons of CDs to the dopant in the host matrix, generating the intriguing red RTP behavior. This work provides an effective strategy for developing CD-based composite materials with special RTP emissions as well as new fields for applications.
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Affiliation(s)
- Bolun Wang
- State
Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College
of Chemistry, Jilin University, Changchun 130012, P. R. China
| | - Ying Mu
- College
of Chemistry and Chemical Engineering, Qingdao
University, Shandong 266071, P. R. China
| | - Hongyue Zhang
- State
Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College
of Chemistry, Jilin University, Changchun 130012, P. R. China
| | - Huaizhong Shi
- State
Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College
of Chemistry, Jilin University, Changchun 130012, P. R. China
| | - Guangrui Chen
- State
Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College
of Chemistry, Jilin University, Changchun 130012, P. R. China
| | - Yue Yu
- State
Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College
of Chemistry, Jilin University, Changchun 130012, P. R. China
| | - Ziqi Yang
- State
Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College
of Chemistry, Jilin University, Changchun 130012, P. R. China
| | - Jiyang Li
- State
Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College
of Chemistry, Jilin University, Changchun 130012, P. R. China
- E-mail:
| | - Jihong Yu
- State
Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College
of Chemistry, Jilin University, Changchun 130012, P. R. China
- International
Center of Future Science, Jilin University, 2699 Qianjin Street, Changchun 130012, P. R. China
- E-mail:
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Hu J, Xu Y, Gou T, Zhou S, Mu Y. High throughput single cell separation and identification using a self-priming isometric and Equant screw valve-based (SIES) microfluidic chip. Analyst 2019; 143:5792-5798. [PMID: 30352109 DOI: 10.1039/c8an01464g] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
The emergence of various single cell separation and identification platforms has greatly promoted the development of single cell research. Among these platforms, microfluidic chip-based strategies occupy a significant position in single cell separation and identification. Here, we proposed a self-priming isometric and Equant screw valve-based microfluidic chip (SIES chip) for high throughput single cell isolation and identification. With several special designs, such as a peripheral water tank to balance negative pressure distribution in a marginal area of the chip, a screw valve to preserve the suction power during the step-by-step sample loading, and multistage branching "T" shape channels to separate cells evenly into the chambers, up to 2000 single cells can be well dispersed and analyzed at the same time using this chip. We applied this chip for the isolation and identification of single A549 cells targeting the activated leukocyte cell adhesion molecule (ALCAM) gene. The results showed that only a small proportion (approximately 5.1%) of A549 cells expressed ALCAM, which can potentially provide a reference for A549 cell reclassification. Besides being inexpensive, user-friendly and portable, our chip can be used in some resource-limited settings and may have a great potential in POC (Point-of-Care) applications.
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Affiliation(s)
- Jiumei Hu
- Research Center for Analytical Instrumentation, Institute of Cyber Systems and Control, State Key Laboratory of Industrial Control Technology, Zhejiang University, Hangzhou 310027, Zhejiang, P. R. China.
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Mu Y, Jiang C, Jiao M, Zhao Y, Lv J, Liu Z. Effect of the acrosome reaction on the efficiency of sperm-mediated DNA transfer. Pol J Vet Sci 2019; 21:755-762. [PMID: 30605270 DOI: 10.24425/pjvs.2018.125588] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Sperm-mediated gene transfer (SMGT) is based on the ability of spermatozoa to bind exoge- nous DNA and transfer it into oocytes by fertilization. However, SMGT is still undergoing opti- mization to improve its efficiency to produce transgenic animals. The acrosome reaction is neces- sary for spermatozoa to carry the exogenous DNA into oocytes. In this study, the effect of the acrosome reaction on the efficiency of spermatozoa carrying exogenous DNA was evalua- ted. The results showed that the efficiency of the acrosome reaction was significantly higher (p⟨0.05) after incubation with 50 μmol/L progesterone compared to incubation without proges- terone. It was significantly higher (p⟨0.05) in the 20, 40, and 60 min of progesterone treatment groups than in the 0 min treatment group. The spermatozoa were further incubated with cyanine dye Cy5 labeled DNA (Cy5-DNA) for 30 min at 37°C, and positive fluorescence signals were detected after the acrosome reaction was induced by progesterone at concentrations of 0 and 50 μmol/L for 40 min. The percentage of positive Cy5-DNA signals in spermatozoa was 96.61±2.06% and 97.51±2.03% following exposure to 0 and 50 μmol/L progesterone, respective- ly. The percentage of partial spermatozoa heads observed following combination with Cy5-DNA was 39.73±3.03% and 56.88±3.12% following exposure to 0 and 50 μmol/L progesterone, respec- tively. The ratio of positively stained spermatozoa combined with exogenous DNA showed no reduction after the acrosome reaction. These results suggest that the acrosome reaction might not be the key factor affecting the efficiency of SMGT.
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Affiliation(s)
- Y Mu
- Key Laboratory of Animal Cellular and Genetic Engineering of Heilongjiang Province, Northeast Agricultural University, 49 Mucai Street, Harbin, China
| | - C Jiang
- Key Laboratory of Animal Cellular and Genetic Engineering of Heilongjiang Province, Northeast Agricultural University, 49 Mucai Street, Harbin, China
| | - M Jiao
- Key Laboratory of Animal Cellular and Genetic Engineering of Heilongjiang Province, Northeast Agricultural University, 49 Mucai Street, Harbin, China
| | - Y Zhao
- Key Laboratory of Animal Cellular and Genetic Engineering of Heilongjiang Province, Northeast Agricultural University, 49 Mucai Street, Harbin, China
| | - J Lv
- Key Laboratory of Animal Cellular and Genetic Engineering of Heilongjiang Province, Northeast Agricultural University, 49 Mucai Street, Harbin, China
| | - Z Liu
- Key Laboratory of Animal Cellular and Genetic Engineering of Heilongjiang Province, Northeast Agricultural University, 49 Mucai Street, Harbin, China
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