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Xu CY, Zhou HP, Zhou JC, Zhang YH. [Removal of epithelial-myoepithelial carcinoma in the lacrimal duct by endoscopic approach: a case report]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2023; 58:263-265. [PMID: 36878507 DOI: 10.3760/cma.j.cn115330-20220627-00388] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 03/08/2023]
Affiliation(s)
- C Y Xu
- Department of Otorhinolaryngology Head and Neck Surgery, the Third Hospital of Peking University, Beijing 100191, China
| | - H P Zhou
- Department of Otorhinolaryngology Head and Neck Surgery, the Third Hospital of Peking University, Beijing 100191, China Department of Otorhinolaryngology Head and Neck Surgery, Yan'an City Hospital of TCM, Yan'an 716099, China
| | - J C Zhou
- Department of Ophthalmology, the Third Hospital of Peking University, Beijing 100191, China
| | - Y H Zhang
- Department of Otorhinolaryngology Head and Neck Surgery, the Third Hospital of Peking University, Beijing 100191, China
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Zhang ZD, Zhou HP, Xue WD, Zhao R, Wang WJ, Feng TT, Xu ZQ, Zhang S, Liao JX, Wu MQ. Nitrogen-plasma doping of carbon film for a high-quality layered Si/C composite anode. J Colloid Interface Sci 2021; 605:463-471. [PMID: 34340033 DOI: 10.1016/j.jcis.2021.06.147] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2021] [Revised: 06/24/2021] [Accepted: 06/26/2021] [Indexed: 10/20/2022]
Abstract
The effect of the chemical component and microstructure, not to mention their facile modification, of the coating/wrapping carbon layer on the electrochemical performance of the Si/C composite anode in lithium ion batteries (LIBs) hasn't been actively explored although Si/C has been recognized as one of the most promising route for the high energy density LIBs. Herein we propose a novel nitrogen-plasma doping route to modify the top carbon film in an elaborately constructed layered Si/C composite anode. The electrochemical performance, e.g., the initial coulombic efficiency (CE), cycle stability and specific capacity of the composite anode is drastically improved by this plasma processing due to the increased kinetics of lithium ions. By means of the appropriate adjustment of the N doping ratio and N chemical configuration in the carbon layer through a N2/H2 plasma processing, the lithium diffusion rate in the composite anode was memorably increased as the pseudocapacitance effects promoted. The optimized Si/C composite exhibits a high capacity of 1120.7 mA h g-1 and an initial CE of 80.8% at the current of 2 A g-1 after a long cycle of 1500, increasing by ~40% of specific capacity and ~29% of the initial CE.
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Affiliation(s)
- Z D Zhang
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu 611731, China
| | - H P Zhou
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu 611731, China; Yangtze Delta Region Institute (Huzhou), University of Electronic Science and Technology of China, Huzhou 313001, China.
| | - W D Xue
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu 611731, China
| | - R Zhao
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu 611731, China
| | - W J Wang
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu 611731, China
| | - T T Feng
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu 611731, China; Yangtze Delta Region Institute (Huzhou), University of Electronic Science and Technology of China, Huzhou 313001, China
| | - Z Q Xu
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu 611731, China; Yangtze Delta Region Institute (Huzhou), University of Electronic Science and Technology of China, Huzhou 313001, China
| | - S Zhang
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu 611731, China; Yangtze Delta Region Institute (Huzhou), University of Electronic Science and Technology of China, Huzhou 313001, China
| | - J X Liao
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu 611731, China
| | - M Q Wu
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu 611731, China; Yangtze Delta Region Institute (Huzhou), University of Electronic Science and Technology of China, Huzhou 313001, China.
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He M, Zhou HP, Zhang ZD, Feng TT, Yang J, Xu ZQ, Zhang S, Liao JX, Wu MQ. All in one plasma process: From the preparation of S-C composite cathode to alleviation of polysulfide shuttle in Li-S batteries. J Colloid Interface Sci 2020; 577:450-458. [PMID: 32505005 DOI: 10.1016/j.jcis.2020.05.036] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2020] [Revised: 05/07/2020] [Accepted: 05/12/2020] [Indexed: 01/08/2023]
Abstract
Tremendous efforts have been made to improve the electrochemical performance of the lithium-sulfur batteries. However, challenges remain in achieving fast electronic and ionic transport while accommodate the significant cathode volumetric change. On the other hand, the severe capacity decay mainly attributed to polysulfide shuttle also hampers the practical applications. Here, we report a simple, low-cost, and eco-friendly method for the one-step preparation of a binder-free S-C composite cathode by plasma dissociation of CS2 containing gases at room-temperature. The key issue of polysulfide shuttle effect in Li-S batteries is also effectively resolved just by the introduction of N2 into the precursor gases. The electrode exhibits a high reversible capacity of ~600 mAh/g of the total hybrid of S + C at 100 mA/g after 100 cycles with an excellent initial coulombic efficiency of nearly 100%. The cells also demonstrate along cycle life and an extremely high capacity of ~306 mAh/g even after 300 cycles at 1 A/g with a high coulombic efficiency of about 100%. The proposed method will open the way for the plasma applications in facile preparation of Li-S batteries and the improvement of its electrochemical performance.
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Affiliation(s)
- M He
- School of Materials and Energy, University of Electronic Science and Technology of China, 2006 Xiyuan Ave, West High-Tech Zone, Chengdu, Sichuan 611731, China
| | - H P Zhou
- School of Materials and Energy, University of Electronic Science and Technology of China, 2006 Xiyuan Ave, West High-Tech Zone, Chengdu, Sichuan 611731, China.
| | - Z D Zhang
- School of Materials and Energy, University of Electronic Science and Technology of China, 2006 Xiyuan Ave, West High-Tech Zone, Chengdu, Sichuan 611731, China
| | - T T Feng
- School of Materials and Energy, University of Electronic Science and Technology of China, 2006 Xiyuan Ave, West High-Tech Zone, Chengdu, Sichuan 611731, China
| | - J Yang
- School of Materials and Energy, University of Electronic Science and Technology of China, 2006 Xiyuan Ave, West High-Tech Zone, Chengdu, Sichuan 611731, China
| | - Z Q Xu
- School of Materials and Energy, University of Electronic Science and Technology of China, 2006 Xiyuan Ave, West High-Tech Zone, Chengdu, Sichuan 611731, China
| | - S Zhang
- School of Materials and Energy, University of Electronic Science and Technology of China, 2006 Xiyuan Ave, West High-Tech Zone, Chengdu, Sichuan 611731, China
| | - J X Liao
- School of Materials and Energy, University of Electronic Science and Technology of China, 2006 Xiyuan Ave, West High-Tech Zone, Chengdu, Sichuan 611731, China
| | - M Q Wu
- School of Materials and Energy, University of Electronic Science and Technology of China, 2006 Xiyuan Ave, West High-Tech Zone, Chengdu, Sichuan 611731, China.
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Zhou HP, Ye X, Huang W, Wu MQ, Mao LN, Yu B, Xu S, Levchenko I, Bazaka K. Wearable, Flexible, Disposable Plasma-Reduced Graphene Oxide Stress Sensors for Monitoring Activities in Austere Environments. ACS Appl Mater Interfaces 2019; 11:15122-15132. [PMID: 30869857 DOI: 10.1021/acsami.8b22673] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
In austere environments, for example, in outer space, on surfaces of extra-terrestrial bodies (Moon, Mars, etc.), or under water, technologies that can enable continuous, reliable, and authentic monitoring of movement of human operators and devices can be critical. We report here the production and human body test of wearable, flexible graphene oxide stress sensors suitable for real-time monitoring of body parameters, state and position of humans, and automatic equipment. These sensors have excellent sensitivity and signal strength across a wide strain range, alleviating the need for additional instrumentation for signal processing and amplification. Their low cost makes them virtually disposable, which may benefit such applications as smart clothing. The sensors were fabricated by a concomitant reduction and N-doping of graphene oxide on polydimethylsiloxane in N2-H2 plasma. The direct bias and other plasma parameters have a significant effect on the reduction and properties of graphene oxide sensors, as shown by optical emission, Raman and X-ray photoelectron spectroscopies, and X-ray diffraction. Optical emission showed different excitation and ionization processes involving atomic and molecular species in the N2-H2 discharge. The photoelectron spectroscopy has confirmed the graphene reduction and introduction of nitrogen doping into the reduced graphene oxide. The bias efficiently controls plasma-induced electric fields, and plasma-related effects determine the N-doping levels. The reduced graphene oxides demonstrate excellent tensile properties, which make them suitable for efficient but cheap stress sensors. This eco-friendly, fast, room-temperature method shows a great potential for fabrication of efficient, flexible sensors.
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Affiliation(s)
| | | | | | | | | | - B Yu
- College of Nanoscale Science and Engineering (CNSE) , State University of New York , Albany , New York 12203 , United States
| | - S Xu
- Plasma Sources and Application Center/Space Propulsion Centre Singapore, NIE, and Institute of Advanced Studies , Nanyang Technological University , 637616 , Singapore
| | - I Levchenko
- Plasma Sources and Application Center/Space Propulsion Centre Singapore, NIE, and Institute of Advanced Studies , Nanyang Technological University , 637616 , Singapore
| | - K Bazaka
- Plasma Sources and Application Center/Space Propulsion Centre Singapore, NIE, and Institute of Advanced Studies , Nanyang Technological University , 637616 , Singapore
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Abstract
INTRODUCTION The benzopyran derivatives present a wide variety of biological activity and behaviour. At the same time the benzopyran derivatives support their use as therapeutic agents for multiple diseases. Their structural characteristics correlated to physicochemical properties seem to define the extent of the biological activity. Areas covered: This review summarizes new patents published on new benzopyran derivatives from 2009 to 2016. Expert opinion: Many benzopyran derivatives have vivo/vitro biological responses. Their clinical evaluation will be critical to assess therapeutic utility. The compounds containing benzopyran moiety is well defined as lead compounds for design of new more promising molecules.
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Affiliation(s)
- Cheng Xiu
- a School of Material Science Chemical Engineering , ChuZhou University , ChuZhou , P. R. China.,b School of Pharmacy , BengBu Medical College , BengBu , P. R. China
| | - Zhou Hua
- a School of Material Science Chemical Engineering , ChuZhou University , ChuZhou , P. R. China
| | - Bao Sheng Xiao
- a School of Material Science Chemical Engineering , ChuZhou University , ChuZhou , P. R. China
| | - Wen Jian Tang
- a School of Material Science Chemical Engineering , ChuZhou University , ChuZhou , P. R. China
| | - Hai Pin Zhou
- c School of Pharmacy , Anhui Medical University , Hefei , P. R. China
| | - Xin Hua Liu
- a School of Material Science Chemical Engineering , ChuZhou University , ChuZhou , P. R. China.,c School of Pharmacy , Anhui Medical University , Hefei , P. R. China
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Wang ZS, Chen LZ, Zhou HP, Liu XH, Chen FH. Diarylpentadienone derivatives (curcumin analogues): Synthesis and anti-inflammatory activity. Bioorg Med Chem Lett 2017; 27:1803-1807. [PMID: 28284806 DOI: 10.1016/j.bmcl.2017.02.056] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2016] [Revised: 02/13/2017] [Accepted: 02/22/2017] [Indexed: 10/20/2022]
Abstract
A series of new (2E,4E)-1-(substitutedphenyl)-5-(substitutedphenyl)penta-2,4-dien-1-one derivatives were designed and synthesized. Compounds 3i, 3k were determined by X-ray. All of the compounds have been screened for their anti-inflammatory activity characterized by evaluating their inhibition against LPS-induced IL-6 and TNF-α release in cell RAW 264.7 stimulated with LPS. Compound 3i showed the highest anti-inflammatory activity on decreasing IL-6 and TNF-α. The further study showed that title compound 3i inhibited expression of proteins p-p65, iNOS, COX-2 LPS-induced. Immunofluorescence also revealed compound 3i could lightly reduce activation p65 in nuclei. These results indicate that compound 3i anti-inflammatory role may partly due to its inhibitory effect on the NF-κB signaling pathway.
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Affiliation(s)
- Zhi Sen Wang
- School of Pharmacy, Anhui Medical University, Hefei 230032, PR China
| | - Liu Zeng Chen
- School of Pharmacy, Anhui Medical University, Hefei 230032, PR China
| | - Hai Pin Zhou
- School of Material Science Chemical Engineering, ChuZhou University, ChuZhou 239000, PR China
| | - Xin Hua Liu
- School of Pharmacy, Anhui Medical University, Hefei 230032, PR China; School of Material Science Chemical Engineering, ChuZhou University, ChuZhou 239000, PR China.
| | - Fei Hu Chen
- School of Pharmacy, Anhui Medical University, Hefei 230032, PR China.
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Shi JB, Chen LZ, Wang Y, Xiou C, Tang WJ, Zhou HP, Liu XH, Yao QZ. Benzophenone-nucleoside derivatives as telomerase inhibitors: Design, synthesis and anticancer evaluation in vitro and in vivo. Eur J Med Chem 2016; 124:729-739. [DOI: 10.1016/j.ejmech.2016.09.011] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2016] [Revised: 08/22/2016] [Accepted: 09/03/2016] [Indexed: 01/19/2023]
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Zhou HP, Xu M, Xu S, Liu LL, Liu CX, Kwek LC, Xu LX. Hydrogen-plasma-induced Rapid, Low-Temperature Crystallization of μm-thick a-Si:H Films. Sci Rep 2016; 6:32716. [PMID: 27600866 PMCID: PMC5013535 DOI: 10.1038/srep32716] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2016] [Accepted: 08/11/2016] [Indexed: 11/18/2022] Open
Abstract
Being a low-cost, mass-production-compatible route to attain crystalline silicon, post-deposition crystallization of amorphous silicon has received intensive research interest. Here we report a low-temperature (300 °C), rapid (crystallization rate of ~17 nm/min) means of a-Si:H crystallization based on high-density hydrogen plasma. A model integrating the three processes of hydrogen insertion, etching, and diffusion, which jointly determined the hydrogenation depth of the excess hydrogen into the treated micrometer thick a-Si:H, is proposed to elucidate the hydrogenation depth evolution and the crystallization mechanism. The effective temperature deduced from the hydrogen diffusion coefficient is far beyond the substrate temperature of 300 °C, which implies additional driving forces for crystallization, i.e., the chemical annealing/plasma heating and the high plasma sheath electric field. The features of LFICP (low-frequency inductively coupled plasma) and LFICP-grown a-Si:H are also briefly discussed to reveal the underlying mechanism of rapid crystallization at low temperatures.
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Affiliation(s)
- H P Zhou
- School of Energy Science and Engineering, University of Electronic Science and Technology of China, 2006 Xiyuan Ave, West High-Tech Zone, Chengdu, 611731, China.,Plasma Sources and Application Center, NIE, and Institute of Advanced Studies, Nanyang Technological University, 637616, Singapore
| | - M Xu
- Key Laboratory of Information Materials of Sichuan Province &School of Electrical and Information Engineering, Southwest University for Nationalities, Chengdu 610041, China
| | - S Xu
- Plasma Sources and Application Center, NIE, and Institute of Advanced Studies, Nanyang Technological University, 637616, Singapore
| | - L L Liu
- Institute of Microstructure and Properties of Advanced Materials, Beijing University of Technology, Beijing, 100124, China
| | - C X Liu
- Institute of Microstructure and Properties of Advanced Materials, Beijing University of Technology, Beijing, 100124, China
| | - L C Kwek
- Centre for Quantum Technologies, National University of Singapore, 119077, Singapore
| | - L X Xu
- Plasma Sources and Application Center, NIE, and Institute of Advanced Studies, Nanyang Technological University, 637616, Singapore
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Shi XS, Li J, Yang RH, Zhao GR, Zhou HP, Zeng WX, Zhou M. Correlation of increased MALAT1 expression with pathological features and prognosis in cancer patients: a meta-analysis. Genet Mol Res 2015; 14:18808-19. [PMID: 26782531 DOI: 10.4238/2015.december.28.30] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Metastasis-associated lung adenocarcinoma transcript 1 (MALAT1) has been identified as a potential cancer biomarker, yet the mechanism by which it influences the development of cancer remains unknown. In this study, we aimed to correlate MALAT1 expression with pathological features and prognosis in cancer patients. Several databases were searched using combinations of keywords relating to MALAT1 and cancer. After selection of relevant cohort studies according to strict criteria, a meta-analysis was conducted. Twelve studies were analyzed, involving 958 cancer patients. Elevated MALAT1 expression was associated with poor prognosis and larger tumors [prognosis: hazard ratio = 3.11, 95% confidence interval (CI) = 1.98-4.23, P = 0.000; tumor size: odds ratio (OR) = 0.40, 95%CI = 0.21-0.74, P = 0.003]. However, no connection with histological grade, T-stage, lymph node (LN) metastasis, or distant metastasis was established (all P > 0.05). A correlation between increased expression and poor prognosis was observed in the large and small sample-size subgroups (all P< 0.05), as was a relationship with large tumor size (OR = 0.30, 95%CI = 0.13-0.71, P = 0.006). Expression was correlated with T-stage and distant metastasis in the small sample-size subgroup (all P < 0.05), but no association was detected regarding histological grade, LN metastasis in either subgroup (all P > 0.05). Our findings demonstrate that elevated MALAT1 expression correlates with large tumor size, advanced tumor stage, and poor prognosis, and might therefore be utilized to evaluate clinical pathological features and prognostic out come for cancer patients.
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Affiliation(s)
- X S Shi
- Department of Thoracic Surgery, Cancer Center of Guangzhou Medical University, Guangzhou, Guangdong, China
| | - J Li
- State Key Laboratory of Respiratory Disease, The First Affiliated Hospital of Guangzhou Medical University
| | - R H Yang
- Department of Thoracic Surgery, Cancer Center of Guangzhou Medical University, Guangzhou, Guangdong, China
| | - G R Zhao
- Department of Thoracic Surgery, Cancer Center of Guangzhou Medical University, Guangzhou, Guangdong, China
| | - H P Zhou
- Department of Thoracic Surgery, Cancer Center of Guangzhou Medical University, Guangzhou, Guangdong, China
| | - W X Zeng
- Department of Thoracic Surgery, Cancer Center of Guangzhou Medical University, Guangzhou, Guangdong, China
| | - M Zhou
- Department of Thoracic Surgery, Cancer Center of Guangzhou Medical University, Guangzhou, Guangdong, China
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Duan CW, Hu LX, Sun Y, Zhou HP, Yu H. Reaction kinetics for the solid state synthesis of the AlH3/MgCl2 nano-composite by mechanical milling. Phys Chem Chem Phys 2015; 17:22152-9. [PMID: 26256935 DOI: 10.1039/c5cp03768a] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [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
The process of mechanical milling has been proved to be a cost-effective way to synthesize the AlH3/MgCl2 nano-composite by using MgH2 and AlCl3 as reagents. However, so far there is no comprehensive knowledge of the kinetics of this process. In an effort to predict the reaction progress and optimize the milling parameters, the kinetics of the synthesis of the AlH3/MgCl2 nano-composite by mechanical milling of MgH2 and AlCl3 is experimentally investigated in the present work. The reaction progress or the transformation fraction upon milling for different times is evaluated using the isothermal hydrogen desorption test of the as-milled samples at 220 °C, which is much lower than the threshold temperature for the de-hydriding of the reagent MgH2 but enough for the de-hydriding of the as-synthesized nano-sized AlH3. The effects of milling parameters on the reaction kinetics as well as the underlying mechanism are discussed by referring to the mechanical energy input intensity, the vial temperature and the Gibbs free energy change for the reaction. Furthermore, it is found that the Johnson-Mehl-Avrami (JMA) model can well describe the kinetics theoretically. By fitting the experimental data with the JMA expression, the theoretical kinetics expressions, the equation parameters, and the activation energy are obtained.
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Affiliation(s)
- C W Duan
- School of Materials Science and Engineering, Harbin Institute of Technology, Harbin, 150001, China.
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Zhou HP, Yi DH, Yu SQ, Sun GC, Cui Q, Zhu HL, Liu JC, Zhang JZ, Wu TJ. Administration of donor-derived mesenchymal stem cells can prolong the survival of rat cardiac allograft. Transplant Proc 2007; 38:3046-51. [PMID: 17112896 DOI: 10.1016/j.transproceed.2006.10.002] [Citation(s) in RCA: 105] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2006] [Indexed: 12/11/2022]
Abstract
BACKGROUND Mesenchymal stem cells (MSCs) are multipotent adult elements that have recently been shown to have profound immunomodulatory effects both in vitro and in vivo. Herein we have examined the impact of intravenous infusion of donor MSCs on the survival of transplanted hearts in a rat allograft model. METHODS Recipient Fisher344 rats were transplanted with hearts from inbred Wistar rats. Wistar rat MSCs were infused via the tail vein at designated intervals. In vitro mixed lymphocyte reaction (MLR) and cell-mediated lympholysis (CML) assays were performed to assess whether MSCs downregulated T-cell responses in vivo. Real-time polymerase chain reaction (PCR) was used to analyze the Th1/Th2 balance in MSC-treated and control groups. RESULTS The MSCs cultured in vitro exhibited multipotential for differentiation. Survival of the allografts was markedly prolonged by administration of MSCs compared with the controls, namely mean survivals of 12.4 vs 6.4 days, respectively. Real-time PCR showed a shift in the Th1/Th2 balance toward Th2. By MLR and CML assays, untreated control rats showed greater alloreactivity than did MSC-treated rats. CONCLUSION Our results indicated that MSCs suppressed allogeneic T-cell responses both in vitro and in vivo. Intravenous administration of MSCs prolonged the survival of transplanted hearts, possibly by induction of allograft tolerance through changing the Th1/Th2 balance.
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Affiliation(s)
- H P Zhou
- Department of Cardiovascular Surgery, Xijing Hospital, Fourth Military Medical University, Xi'an City, Shannxi Province, China.
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Hu T, Metz S, Chay C, Zhou HP, Biest N, Chen G, Cheng M, Feng X, Radionenko M, Lu F, Fry J. Agrobacterium-mediated large-scale transformation of wheat (Triticum aestivum L.) using glyphosate selection. Plant Cell Rep 2003; 21:1010-19. [PMID: 12835912 DOI: 10.1007/s00299-003-0617-6] [Citation(s) in RCA: 68] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/20/2002] [Revised: 02/11/2003] [Accepted: 02/20/2003] [Indexed: 05/21/2023]
Abstract
An Agrobacterium-mediated transformation system with glyphosate selection has been developed for the large-scale production of transgenic plants. The system uses 4-day precultured immature embryos as explants. A total of 30 vectors containing the 5-enol-pyruvylshikimate-3-phosphate synthase gene from Agrobacterium strain CP4 (aroA:CP4), which confers resistance to glyphosate, were introduced into wheat using this system. The aroA:CP4 gene served two roles in this study-selectable marker and gene of interest. More than 3,000 transgenic events were produced with an average transformation efficiency of 4.4%. The entire process from isolation of immature embryos to production of transgenic plantlets was 50-80 days. Transgenic events were evaluated over several generations based on genetic, agronomic and molecular criteria. Forty-six percent of the transgenic events fit a 3:1 segregation ratio. Molecular analysis confirmed that four of six lead transgenic events selected from Agrobacterium transformation contained a single insert and a single copy of the transgene. Stable expression of theAROA:CP4 gene was confirmed by ELISA through nine generations. A comparison of Agrobacterium-mediated transformation to a particle bombardment system demonstrated that the Agrobacterium system is reproducible, has a higher transformation efficiency with glyphosate selection and produces higher quality transgenic events in wheat. One of the lead events from this study, no. 33391, has been identified as a Roundup Ready wheat commercial candidate.
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Affiliation(s)
- T Hu
- Monsanto Company, 700 Chesterfield Parkway West, St. Louis, MO 63017, USA.
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Abstract
In order to devise and evaluate standardized specimen collection procedures, we studied the influence of psychological stress on the results of commonly analysed blood components: creatine kinase, lactate dehydrogenase, total protein and albumin in serum and blood picture. In addition, serum cortisol was assayed. Two kinds of stress were used: the Stroop test, a colour conflict task, and the thrill caused by the first jump of new parachutists. More changes were observed after the parachutist test than after the Stroop test. There was a difference in the responses of males and females. Females were more sensitive, especially to the parachutist test. Most of the changes observed were interpreted as being caused by haemoconcentration, possibly related to muscular tension. Cortisol, commonly used to indicate the level of stress, did not react much and is therefore not a good index of psychological stress.
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Affiliation(s)
- B Dugué
- Minerva Foundation Institute for Medical Research, Maria Hospital, Helsinki, Finland
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14
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Ling SS, Zhou HP, Tang CP, Tian ZY, Sun WL. [The physiological dispositions of 10-hydroxy-delta 2-decenoic acid (10-HDA) in rats and mice]. Yao Xue Xue Bao 1988; 23:1-7. [PMID: 3400471] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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15
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Zhou HP, Cao XF. [6 cases of esophageal carcinoma with concomitant tumors of the gastric cardia]. Zhonghua Wai Ke Za Zhi 1987; 25:700-1, 734. [PMID: 3452520] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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Søgaard P, Gahrn-Hansen B, Zhou HP, Frederiksen W. An investigation of three commercial methods for rapid identification of non-enteric gram-negative rods. Application on Pseudomonas paucimobilis and some other Pseudomonas species. Acta Pathol Microbiol Immunol Scand B 1986; 94:357-63. [PMID: 3788574 DOI: 10.1111/j.1699-0463.1986.tb03067.x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Three commercial systems for the identification of non-enteric gram-negative rods were compared with conventional bacteriological methods as reference. The three systems were the API 20 NE, BIO-TEST ID-Trident, and ROSCO Diagnostic Tablets. The systems were tested on a set of 47 strains from the genus Pseudomonas, with the emphasis upon the yellow-pigmented species. The overall identification accuracy was 97% with the API, 19% with the BIOTEST and 68% with the ROSCO system. The API system was thus reliable, and it presented no major practical problems. The BIOTEST system was very handy. The main reason for the low accuracy was an error in the code book. The ONPG reaction was depicted as negative in the species P. paucimobilis. A positive ONPG test is a keymark in this species and 76% of the 20 strains of P. paucimobilis included in this investigation were also found positive with the BIOTEST system. The ROSCO tablets are convenient if the result of single reactions is desired. The time consumption per strain was 5.4, 4.4, and 6.2 min for the API, BIOTEST, and ROSCO systems respectively.
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Zhou HP. [Surgical treatment of esophageal and cardiac carcinoma in elderly patients--report of 130 cases]. Zhonghua Zhong Liu Za Zhi 1984; 6:456-8. [PMID: 6532752] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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Deng ZY, Zhou HP. Experience in the treatment of clonorchiasis by Professor Deng Tietao. J TRADIT CHIN MED 1982; 2:131-4. [PMID: 6765850] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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