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    题名 作者 年代 出处 被引量
1利用抗高血压药相关的遗传变异发现其潜在的功效和副作用显示文摘通过研究药物靶蛋白基因的自然变异可以了解药物的功效。本研究旨在利用这种方法探索抗高血压药的潜在副作用和再利用潜力。研究者首先确定了血管紧张素转换酶抑制剂(angiotensin converting enzyme inhibitor,ACEI)、β受体阻滞剂和钙拮抗剂的合适代表基因。刘青(译) 叶鹏(校) Gill D Georgakis MK Koskeridis F Jiang L Feng Q Wei WQ Theodoratou E Elliott P Denny JC Malik R Evangelou E Dehghan A Dichgans M Tzoulaki I 2019中华高血压杂志2019,0,9:3
2Protective effects of anti-ricin A-chain RNA aptamer against ricin toxicity显示文摘AIM: To investigate the therapeutic potential of an RNA ligand (aptamer) specific for the catalytic ricin A-chain (RTA), the protective effects of a 31-nucleo-tide RNA aptamer (31RA), which formed a high affi nity complex with RTA, against ricin-induced toxicity in cellbased luciferase translation and cell cytotoxicity assays were evaluated. METHODS: To test the therapeutic potential of anti-RTA aptamers in Chinese hamster ovary (CHO) AA8 cells stably transfected with a tetracycline regulat-able promoter, ricin ribotoxicity was measured using luciferase and ricin-induced cytotoxicity was ascertained by MTS cell proliferation assay with tetrazolium compound [3-(4,5-dimethylthiazol-2-yl)-5-(3-carboxymethoxyphenyl)-2-(4-sulfophenyl)-2H-tetrazolium]. RESULTS: Inhibition of protein synthesis by ricin in CHO AA8 cells resulted in diminished luciferase activity and treatment with polyclonal antibody against degly-cosylated RTA (dgA) neutralized the inhibitory effects of ricin on luciferase activity and protected against ricin-induced cytotoxicity as measured by MTS assay. The 31RA anti-RTA aptamer inhibited the translation of luciferase mRNA in cell-free reticulocyte translation as- say. 31RA aptamer also partially neutralized the inhibitory effects of ricin on luciferase activity and partially protected against ricin-induced cytotoxicity in CHO AA8 cells. CONCLUSION: We have shown that anti-RTA RNA aptamer can protect against ricin ribotoxicity in cellbased luciferase and cell cytotoxicity assays. Hence, RNA aptamer that inhibits RTA enzymatic activity represents a novel class of nucleic acid inhibitor that has the potential to be developed as a therapeutic agent for the treatment of ricin intoxication.Shaoan Fan Feng Wu Frank Martiniuk Martha L Hale Andrew D Ellington Kam-Meng Tchou-Wong 2008World Journal of Gastroenterology2008,14,41:3
3全颗粒饲料对奶牛生产性能的影响显示文摘饲料中的中性洗涤纤维(NDF)含量和饲料颗粒直径是影响瘤胃功能的重要因素。试验评估了以颗粒饲料为主的奶牛瘤胃健康情况、NDF消化率和生产性能。选取8头荷斯坦母牛(336±30 d,体重346±35 kg),随机分配到交叉重复试验组中,奶牛安置于牛栏,自由采食。试验期为3周,前两周是适应期,最后一周为数据收集期。各组饲粮原料相同,但物理形式不同,分为全混合日粮(TMR)和颗粒料(直径=8 mm)。两组间物理有效NDF(pe NDF)不同,TMR组为39.8%,颗粒料组为11.8%。在试验过程中,干物质采食量(DMI)、饮水量、瘤胃反刍时间、瘤胃温度和pH情况均记录。3周后收集粪样,确定潜在的可消化NDF总消化率(pdNDF)。每阶段结束后计算平均日增重和饲料转化率。颗粒料组的DMI、DMI/体重和饮水量更高。而两组间平均日增重和饲料转化率无显著差异。颗粒料组的瘤胃反刍时间为241 min·d-1低于TMR组的507 min·d-1。饲料的不同物理外形对瘤胃温度、瘤胃pH无显著影响。TMR组的pdNDF总消化率为90.25%高于颗粒料组的86.82%。试验结果表明,动物易接受完整的颗粒饲料,DMI较高,且反刍时间减少,但瘤胃pH无显著变化。TMR组的pdNDF消化率显著增加。尽管两组奶牛在DMI和纤维消化方面表现不同,但总体表现相似,两组饲料的保存时间与其物理形式有关。在短期内,提供能满足NDF需求的完全颗粒饲料可改善瘤胃健康状况和动物生产性能,而较长时间的数据则需要进一步试验。Wang J Yang M Cao M Lin Y Che L Q Duraipandiyan V Al-Dhabi N A Fang Z F Xu S Y Feng B Liu G Wu D Bonfante E Palmonari A Mammi L Canestrari G Fustini M Formigoni A 2016饲料博览2016,0,12:2
4Anisotropic damage model under continuum slip crystal plasticity theory for single crystals显示文摘Feng L Zhang K S Zhang G Yu H D 2002International Journal of Solids and Structures2002,39,:2
5Terahertz Semiconductor Quantum Well Devices显示文摘For eventually providing terahertz science with compact and convenient devices,terahertz (1~10THz) quantum-well photodetectors and quantum-cascade lasers are investigated.The design and projected detector performance are presented together with experimental results for several test devices,all working at photon energies below and around optical phonons.Background limited infrared performance (BLIP) operations are observed for all samples (three in total),designed for different wavelengths.BLIP temperatures of 17,13,and 12K are achieved for peak detection frequencies of 9.7THz(31μm),5.4THz(56μm),and 3.2THz(93μm),respectively.A set of THz quantum-cascade lasers with identical device parameters except for doping concentration is studied.The δ-doping density for each period varies from 3.2×1010 to 4.8×1010cm-2.We observe that the lasing threshold current density increases monotonically with doping concentration.Moreover,the measurements for devices with different cavity lengths provide evidence that the free carrier absorption causes the waveguide loss also to increase monotonically.Interestingly the observed maximum lasing temperature is best at a doping density of 3.6×1010cm-2.Liu H C Luo H Ban D Waichter M Song C Y Wasilewski Z R Buchanan M Aers G C SpringThorpe A J Cao J C Feng S L Williams B S Hu Q 2006Journal of Semiconductors2006,27,4:2
6DEA models for supply chain efficiency evaluation显示文摘Liang L Feng Y Cook W D Zhu J 2006Annals of Operations Research2006,145,1:1
7Triblock copolymer syntheses of mesoporous silica with periodic 50 to 300 angstrom pores 显示文摘Zhao D Y Feng J L Huo Q S 1998Science1998,279,:1
8Converting ceria polyhedral nanoparticles into single-crystal nanospheres 显示文摘Feng X D Sayle D C Wang Z L Paras M S Santora B Sutorik A C Sayle T X T Yang Y Ding Y Wang X D Her Y S 2006Science2006,312,5779:1
9Total least mean squares algorithm显示文摘Feng D Z Bao Z Jiao L C 1998IEEE Trans on Signal Processing1998,46,8:1
10Tourist purchase decision involvement and information preferences显示文摘Cai L P Feng R M Breiter D 2004Journal of Vacation Marketing2004,10,2:1
11Blood flow and leukocyte mobilization in infection:A comparison between ischemic and wellperfused flaps显示文摘Feng L J Price DC Hohn D 1983Plast Surg Forum1983,86,:1
12Triblock Copolymer Syntheses of Mesoporous Silica with Periodic 50 to 300 Angstrom Pores显示文摘Zhao D Y Feng J L Huo Q S 1998Science1998,279,:1
13Cu planarization in electrochemical mechanical planarization 显示文摘FENG Q L TIAN B D ALAIN D 2006Journal of the Electrochemical Society2006,153,6:1
14Triblock copolymer syntheses of mesoporous silica with periodic 50 to 300 angstorm pores 显示文摘Zhao D Y Feng J L Huo Q S 1998Science1998,279,5350:1
15Triblock copolymer syntheses of mesoporous silica with periodic 50 to 300 angstrom pores显示文摘Zhao D Y Feng J L Huo Q S 1998Science1998,279,23:1
16The structure and dy- namic properties of thermoplastic polyurethane elastomer/ hindered phenol hybrids显示文摘Xiao D L Zhao X Y Feng Y P 2010Journal of Applied Polymer Sci- ence2010,116,4:1
17Characterisation of fractalkine in rat brain cells: migratory and activation signals for CX3 CR1 -expressing microglia 显示文摘Maciejewski-Lenoir D Chen S Feng L 1999J Immunol1999,163,3:1
18Design and high-level ex- pression of a hybrid antimicrobial peptide LF15-CA8 in Escherichia coh 显示文摘FENG X J XING L W LIU D 2014Journal of industrial microbiology & biotechnology2014,41,3:1
19Simple bioseparations using self-cleaving elastin-like polypeptide tags 显示文摘BANKI M R FENG L WOOD D W 2005Nature Methods2005,2,:1
20The TIL commissioning and performance显示文摘X Zhang W Zheng X Wei F Jing Z Sui K Zheng Q Xu X Yuan X Jiang L Yang P Ma M Li J Wang D Hu S He F Li Z Peng B Feng H Zhou L Guo X Li X Zhang J Su Q Zhu H Yu R Zhao C Ma H He D Fan W Zhang 2008Journal of Physics: Conference Series2008,,3:1
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