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| 1 | Vaccination against Schistosoma japonicum Infection by DNA Vaccine Encoding Sj22.7 Antigen显示文摘在鼠标的效果, recombinant 原生质标志 pcDNA3-Sj22.7 与调停 liposome 的方法习惯于 transfectHeLa 房间, Sj22.7 mRNA 和蛋白质的表达式用反向的抄写聚合酶链反应,钠 dodecylsulfate-polyacrylamide 凝胶电泳和蛋白质印迹被检验。然后, pcDNA3-Sj22.7 的能力在鼠标的种痘以后根据蠕虫减小率和鸡蛋减小率被分析免于 Schistosomajaponicum 挑战感染。特定的 IgG 抗体和 T 淋巴细胞增长反应的浆液层次也是坚定的。在挑战感染以后,驾驶 Sj22.7 的干扰素(IFN )-gamma andinterleukin (IL )-4 也被确定。结果证明 pcDNA3-Sj22.7 能表示 Sj22.7 mRNAand 在 vitro.Immunization 的蛋白质导致了29.70%的蠕虫减小率;鸡蛋减小率of47.25%(肝)并且51.73%(肠),并且25.90%的鸡蛋减小率(鸡蛋每女性),在 连接group.Enzyme 的免疫吸着剂试金和蛋白质印迹分析显示了的 pcDNA3-Sj22.7 建议重要反肥沃的正式就职那使对从与 pcDNA3-Sj22.7 使免疫的鼠标的 Sj22.7.Tlymphocytes 的产生特定的 IgG 显示出的鼠标免疫怒气房间的一种重要增长反应 torSj22.7.The 文化证明 IFN-gamma 的那分泌物增加了但是 IL-4decreased.The 结果显示由 pcDNA3-Sj22.7 的 DNA 种痘对足够对 S.japonicum 感染得到保护的免疫的重要层次。DNA 疫苗能导致重要细胞、体液的有免疫力的反应,并且显示占优势的 T 助手房间类型 1 类型免疫者回答,它在鼠标对挑战感染贡献保护的免疫。 | Gan DAI Shiping WANG Junlong YU Shaorui XU Xianchu PENG Zhuo HE Xueqin LIU Songhua ZHOU and Fen LIU Institute of Schistosomiasis Research.Xiangya School of Medicine,Central South University,Changsha 410078 China | 2007 | Acta Biochimica et Biophysica Sinica2007,39,1: | 5 |
| 2 | A New Method of Thermal Protection by Opposing Jet for a Hypersonic Aeroheating Strut显示文摘This paper presents the numerical investigation of thermal protection of scramjet strut by opposing jet in supersonic stream of Mach number 6 with a hydrogen fueled scramjet strut model using CFD software. Simulation results indicate that when a small amount of fuel is injected from the nose of the strut, the bow shock is pushed away from the strut, and the heat flux is reduced in the strut, especially at the leading edge. Opposing jet forms a recirculation region near the nozzle so that the strut is covered with low temperature fuel and separated from free stream. An appropriate total pressure ratio can be used to reduce not only aerodynamic heating but also the drag of strut. It is therefore concluded that thermal protection of scramjet strut by opposing jet is one of the promising ways to protect scramjet strut in high enthalpy stream. | QIN Jiang NING Dongpo FENG Yu ZHANG Junlong FENG Shuo BAO Wen | 2017 | Journal of Thermal Science2017,26,3: | 4 |
| 3 | Cloning, expression and protective immunity evalua-tion of the full-length cDNA encoding succinate dehydrogenase iron-sulfur protein of Schistosoma japonicum显示文摘1071-bp fragment was obtained from the Schistosoma japonicum (Chinese strain) adult cDNA library after the 3′ and 5′ ends of the incomplete expression sequence tag (EST) of succinate dehydrogenase iron-sulfur protein of Schistosoma japonicum (SjSDISP) were amplified by the anchored PCR with 2 pairs of primers designed according to the EST of SjSDISP and the sequence of multiclone sites of the library vector. Sequence analysis indicated that the fragment was a full-length cDNA with a complete open reading frame (ORF), encoding 278 amino acid residues. The fragment was cloned into prokary- otic expression vector pQE30, and subsequently sequenced and expressed in Escherichia coli. SDS-PAGE and Western-blot analyses showed that the recombinant protein was about 32 kD and could be recognized by the polyclonal antisera from rabbits immunized with Schistosoma japonicum adult worm antigen. Compared with the FCA controls, mice vaccinated with rSjSDISP (test) or rSjGST (posi- tive control) all revealed high levels of specific antibody and significant reduction in worm burden, liver eggs per gram (LEPG), fecal eggs per gram (FEPG) and intrauterine eggs. These results suggest that SjSDISP may be a novel and partially protective vaccine candidate against schistosomiasis. In contrast to the worm burden reduction rate, the higher degree of egg reduction rate in the test group also sug- gested that SjSDISP vaccine may primarily play a role in anti-embryonation or anti-fecundity immunity. | YU JunLong, WANG ShiPing, LI WenKai, DAI Gan, XU ShaoRui, HE Zhuo, PENG XianChu, ZHOU SongHua & LIU XueQin Department of Parasitology, Xiangya School of Medicine, Central South University, Changsha 410078, China | 2007 | Science China(Life Sciences)2007,50,2: | 4 |
| 4 | Tenofovir vs.entecavir on recurrence of hepatitis B virus-related hepatocellular carcinoma beyond Milan criteria after hepatectomy显示文摘Background:Hepatectomy for hepatocellular carcinoma(HCC)beyond the Milan criteria is shown to be beneficial.However,a high rate of post-operative HCC recurrence hinders the long-term survival of the patients.This study aimed to investigate and compare the impacts of tenofovir(TDF)and entecavir(ETV)on the recurrence of hepatitis B viral(HBV)-related HCC beyond the Milan criteria.Methods:Data pertaining to 1532 patients who underwent hepatectomy and received antiviral therapy between January 2014 and January 2019 were collected from five centers.Recurrence-free survival(RFS)analysis was performed using the Kaplan-Meier method.Cox proportional hazards regression analysis was performed to determine prognostic factors for HCC recurrence.Results:The analysis incorporates 595 HBV-related HCC patients.The overall 5-year RFS was 21.3%.Among them,533 and 62 patients received ETV and TDF treatment,respectively.The 1-,3-,and 5-year RFS rates were 46.3%,27.4%,and 19.6%,respectively,in the ETV group compared with 65.1%,41.8%,and 37.2%,respectively,in the TDF group(P<0.001).Multivariate analysis showed that TDF treatment(hazard ratio[HR]:0.604,P=0.005),cirrhosis(HR:1.557,P=0.004),tumor size(HR:1.037,P=0.008),microvascular invasion(MVI)(HR:1.403,P=0.002),portal vein tumor thrombus(PVTT)(HR:1.358,P=0.012),capsular invasion(HR:1.228,P=0.040),and creatinine levels(CREA)(HR:0.993,P=0.031)were statistically significant prognostic factors associated with RFS.Conclusions:Patients with HCC beyond the Milan criteria exhibited a high rate of HCC recurrence after hepatectomy.Compared to the ETV therapy,TDF administration significantly lowered the risk of HCC recurrence. | Junyi Shen Weili Qi Junlong Dai Shusheng Leng Kangyi Jiang Yu Zhang Shun Ran Chuan Li Tianfu Wen | 2022 | Chinese Medical Journal2022,,3: | 3 |
| 5 | Fabrication of paper-based devices for in vitro tissue modeling显示文摘Paper devices have recently attracted considerable attention as a class of cost-effective cell culture substrates for various biomedical applications.The paper biomaterial can be used to partially mimic the in vivo cell microenvironments mainly due to its natural three-dimensional characteristic.The paper-based devices provide precise control over their structures as well as cell distributions,allowing recapitulation of certain interactions between the cells and the extracellular matrix.These features have shown great potential for the development of normal and diseased human tissue models.In this review,we discuss the fabrication of paper-based devices for in vitro tissue modeling,as well as the applications of these devices toward drug screening and personalized medicine.It is believed that paper as a biomaterial will play an essential role in the field of tissue model engineering due to its unique performances,such as good biocompatibility,eco-friendliness,cost-effectiveness,and amenability to various biodesign and manufacturing needs. | Hongbin Li Feng Cheng Juan A.Robledo-Lara Junlong Liao Zixuan Wang Yu Shrike Zhang | 2020 | Bio-Design and Manufacturing2020,3,3: | 1 |
| 6 | Effect of As doping on the photoluminescence of nanocrystalline 74 Ge embedded in SiO 2 matrix显示文摘 | Shaobo Dun Tiecheng Lu Youwen Hu Qiang Hu Liuqi Yu Zheng Li Ningkang Huang Songbao Zhang Bin Tang Junlong Dai Lev Resnick Issai Shlimak | 2008 | Journal of Luminescence2008,,8: | 1 |
| 7 | Progress on nanostructured gel catalysts for oxygen electrocatalysis显示文摘Driven by the serious ecological problems,it is urgent to explore high-efficiency sustainable energy technologies.Oxygen electrocatalysis acts as important half-reactions in the emerging electrochemical energy techniques including electrolysis and batteries.Gel composites exhibit the merits of rich porous,superior hydrophilic,and large specific surface area,which can significantly improve the electrolyte penetration and boost the kinetics process of oxygen electrocatalysis.In this invited contribution,the advances and challenges of a novel gel materials for oxygen electrocatalysis are summarized.Starting from the structure-activity-performance relationship of gel materials,synthetic routes of nanostructured gel materials,namely,radical polymerization,sol-gel method,hydrothermal/solvothermal reactions,and ligand-substitution method,are introduced.Afterward,the gel composites are divided into polymer-based,metal-based,and carbon-based materials in turn,and their applications in oxygen electrocatalysis are discussed respectively.At the end,the perspective and challenges for advanced gel oxygen electrocatalysts are proposed. | Huan Yang Huilin Hu Chenfeng Xia Feng You Junlong Yao Xueliang Jiang Bao Yu Xia | 2022 | Nano Research2022,15,12: | 1 |
| 8 | Preparation, interfacial regulation and strengthening of Mg/Al bimetal fabricated by compound casting: A review显示文摘Mg/Al bimetal combines the advantages of both aluminum and magnesium and has broad application prospects in automotive, aerospace,weapons, digital products and so on. The compound casting has the characteristics of low cost, easy to achieve metallurgical combination and suitable for the preparation of complex bimetallic parts. However, bimetallic joint strength is low due to differences of physical properties between Al and Mg, oxide film on metallic surface and interfacial Al-Mg IMCs, which is closely related to the interfacial microstructure and properties. Therefore, how to control the interface of the bimetal to achieve performance enhancement is the focus and difficulty in this field. At present, there are mainly the following strengthening methods. First, the “zincate galvanizing” and “electrolytic polishing+anodic oxidation” technology were exert on the surface of Al alloy to remove and break the oxide film, which improved the wettability between Al and Mg. Second, the undesirable Al-Mg IMCs were reduce or elimination by adding the interlayers(Zn, Ni and Ni-Cu). Thirdly, the evolution process of interfacial microstructure was changed and fine strengthening phases were formed by adding Si element to Al alloy or rare earth element to Mg alloy. Fourthly, mechanical vibration and ultrasonic vibration were applied in the process of the filling and solidification to refine and homogenize the interfacial structure. Finally, some other methods, including secondary rolling, thermal modification, heat treatment and constructing exterior 3D morphology, also can be used to regulate the interfacial microstructure and compositions. The above strengthening methods can be used alone or in combination to achieve bimetallic strengthening. Finally, the future development direction of the Mg/Al bimetal is prospected, which provides some new ideas for the development and application of the Mg/Al bimetal. | Guangyu Li Wenming Jiang Feng Guan Zheng Zhang Junlong Wang Yang Yu Zitian Fan | 2023 | Journal of Magnesium and Alloys2023,11,9: | 0 |
| 9 | 3D-bioprinted cholangiocarcinoma-on-a-chip model for evaluating drug responses显示文摘Cholangiocarcinoma(CCA)is characterized by heterogeneous mutations and a refractory nature.Thus,the development of a model for effective drug screening is urgently needed.As the established therapeutic testing models for CCA are often ineffective,we fabricated an enabling three-dimensional(3D)-bioprinted CCA-on-a-chip model that to a good extent resembled the multicellular microenvironment and the anatomical microstructure of the hepato-vascular-biliary system to perform high-content antitumor drug screening.Specifically,cholangiocytes,hepatocytes,and vascular endotheliocytes were employed for 3D bioprinting of the models,allowing for a high degree of spatial and tube-like microstructural control.Interestingly,it was possible to observe CCA cells attached to the surfaces of the gelatin methacryloyl(GelMA)hydrogelembedded microchannels and overgrown in a thickening manner,generating bile duct stenosis,which was expected to be analogous to the in vivo configuration.Over 4000 differentially expressed genes were detected in the CCA cells in our 3D coculture model compared to the traditional two-dimensional(2D)monoculture.Further screening revealed that the CCA cells grown in the 3D traditional model were more sensitive to the antitumoral prodrug than those in the 2D monoculture due to drug biotransformation by the neighboring functional hepatocytes.This study provides proof-of-concept validation of our bioprinted CCA-on-a-chip as a promising drug screening model for CCA treatment and paves the way for potential personalized medicine strategies for CCA patients in the future. | Qiong Liu Luis SMille Cesar Villalobos Ingrid Anaya Matthias Vostatek Sili Yi Wanlu Li Junlong Liao Huanghui Wu Yongteng Song Lize Xiong Yu Shrike Zhang | 2023 | Bio-Design and Manufacturing2023,6,4: | 0 |
| 10 | Component Analysis of Shuanghuanglian Freeze-dried Powder and Its Effects on Human Hepatocyte Function when Combined with Cefradine显示文摘[Objectives]To detect the contents of components in Shuanghuanglian freeze-dried powder and to explore the effects of Shuanghuanglian freeze-dried powder and its components on human hepatocytes(HL-7702)alone or in combination with cefradine.[Methods]High performance liquid chromatography(HPLC)was used to detect the contents of baicalin,wogonin,chlorogenic acid and forsythin,the main components of Shuanghuanglian freeze-dried powder.HL-7702 cells were cultured with Shuanghuanglian freeze-dried powder and the main components of Shuanghuanglian freeze-dried powder alone or in combination with cefradine.Enzyme linked immunosorbent assay(ELISA)was used to detect the contents of alanine aminotransferase(ALT)and aspartate aminotransferase(AST)in the cell supernatant after culture,and HPLC was used to detect the expression level of adenosine diphosphate(ADP)and adenosine triphosphate(ATP);agarose gel electrophoresis was used to detect the expression of cyclooxygenase 2(COX-2)and heme oxygenase-1(HO-1)in HL-7702 cells.[Results]In Shuanghuanglian freeze-dried powder for injection,the content of baicalin was the highest,and the content of wogonin was the lowest.Compared with the control group,the expressions of AST and ALT in human hepatocytes(HL-7702)in high-dose baicalin group,forsythin group and wogonin group decreased(P<0.05,P<0.01),while the expression of ALT in chlorogenic acid+cefradine group(0.046 mg/mL)and forsythin+cefradine group(0.046 mg/mL)increased(P<0.05,P<0.01),and the expression of AST had no significant difference(P>0.05);the results in the low-dose group were similar to those in the high-dose group.Compared with the control group,ATP expression in chlorogenic acid group,chlorogenic acid+cefradine group(0.046 mg/mL)and forsythin+cefradine group(0.046 mg/mL)in the high-dose group decreased(P<0.05,P<0.01),and ADP expression was not significantly different(P>0.05);in the low-dose group,the expression of ATP and ADP increased in baicalin group(P<0.05),but decreased in wogonin group,baicalin+cefradine group(0.046 mg/mL)and wogonin group+cefradine group(0.046 mg/mL)(P<0.05,P<0.01).Compared with the control group,the expressions of COX-2 and HO-1 in HL-7702 cells in the cefradine group showed no significant difference(P>0.05).The expression of HO-1 and COX-2 in the different dose groups of Shuanghuanglian and the group combined with cefradine increased,and the difference was significant(P<0.05,P<0.01).[Conclusions]The components of Shuanghuanglian freeze-dried powder for injection had effects on hepatocytes,of which baicalin had a significant effect,and the effect of cefradine on hepatocytes was increased when used in combination with cefradine. | Junlong YU Dazhi XU Ruyan WEN Xiangling LI | 2022 | Medicinal Plant2022,13,6: | 0 |
| 11 | Recycling and Upgrading Utilization of Polymer Plastics显示文摘Due to the current situation of massive waste consumption and accumulation,the recycling and upgrading utilization of polymer materials is an effective technology to solve environmental pollution.In this work,the recycling and upgrading methods of polymers are summarized,and the latest progress in polymer upcycling is discussed from the perspective of upgrading materials.The common polymer recovery methods,including mechanical recovery,chemical recovery,biocatalysis,and photocatalytic recovery,are discussed based on their mechanism and industrialized application.The upgrading products of polymers are divided into monomers,fuels and fine chemicals.The challenges and prospects of polymer degradation technology are discussed. | Huilin Hu Yana Chen Feng You Junlong Yao Huan Yang Xueliang Jiang Bao Yu Xia | 2023 | Chinese Journal of Chemistry2023,41,4: | 0 |