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5368篇 您的检索式:作者名="Shen F"
    题名 作者 年代 出处 被引量
1Interaction of hepatitis C virus envelope glycoprotein E2 with the large extracellular loop of tupaia CD81显示文摘AIM: To further analyze the interaction of tupaia CD81 with hepatitis C virus (HCV) envelope protein E2. METHODS: A tupaia CD81 large extracellular loop (CD81 LEL), which binds to HCV E2 protein, was cloned and expressed as a GST-fusion protein, and interaction of HCV E2 protein with a tupaia CD81 LEL was evaluated by enzyme-linked immunosorbent assay (EIA). RESULTS: Although tupaia and human CD81 LEL differed in 6 amino acid changes, tupaia CD81 LEL was strongly recognized by anti-CD81 antibodies against human CD81 LEL conformation-dependent epitopes. Investigating LEL CD81-E2 interactions by EIA, we demonstrated that binding of tupaia CD81 LEL GST fusion protein to recombinant HCV E2 protein was markedly reduced compared to binding of human CD81 LEL GST fusion protein to recombinant HCV E2 protein. CONCLUSION: These data suggest that the structural differences in-between the tupaia and human CD81 may alter the interaction of the large extracellular loop with HCV envelope glycoprotein E2. These findings may be important for the understanding of the mechanisms of binding and entry of HCV to PTHs.Zhan-Fei Tian Hong Shen Xi-Hua Fu Yi-Chun Chen Hubert E Blum Thomas F Baumert Xi-Ping Zhao 2009World Journal of Gastroenterology2009,15,2:16
2Progress in research of liver surgery in China显示文摘INTRODUCTIONLiver surgery,was started in the late 1950s in Chinaand has developed rapidly in the past 40 years.The study on the diagnosis and treatment of primaryliver cancer in China underwent four stages:①Inthe 1950s,the anatomical study of the liver lay asolid foundation for liver resection.①InWu MC Shen F 2000World Journal of Gastroenterology2000,6,6:16
3Polymorphisms of MTHFD,plasma homocysteine levels, and risk of gastric cancer in ahigh-risk Chinese population显示文摘Purpose:Accumulative evidence suggests that folate has a protective effect on gastric cancer. The methylenetetrahyd-rofolate dlehydrogenase(MTHFD) plays an important role in folate and homocysteine metabolisms, and polymorphisms of MTHFD may result in disturbance of the folate-mediated homocysteine pathway. The aim of this study is to test the hypothesis that genetic variants of MTHFD and plasma homocysteine levels are associated with risk of gastric cancer and modulated by genotypes of methylenetetrahydrofolate reductase(MTHFR). Experimental Design: We genotyped G1958A and T401C in MTHFD and C677T in MTHFR and detected total plasma homocysteine(tHcy) levels in a case-control study of 589 gastric cancer cases and 635 cancer-free controls in a high-risk Chinese population. Results:The variant genotypes of MTHFD 1958AA and 401CC were associated with a significantly increased risk of gastric canceradjusted odds ratio(OR), 2.05; 95% confidence interval(95% CI),1.34-3.13 for 1958AA; adjusted OR,1.43; 95% CI,1.14-1.80 for 401CC compared with 1958GG/GA and 401TT/TC genotypes, respectively. Both of the effects were more evident in the subjects carrying MTHFR 677CT/TT genotypes. The average tHcy level was significantly higher in gastric cancer cases than in controls(P < 0.01), and the upper quartile of tHcy (> 13.6 mu mol/L) was associated with an 82% significantly increased risk of gastric cancer, compared with the lowest quartile of tHcy(<= 8.0 pmol/L;adjusted OR,1.82; 95% CI,1.20-2.75). Conclusions:The strong associations between MTHFD variants and the plasma tHcy levels and gastric cancer risk suggest, for the first time, a possible gene-environment interaction between genetic variants of folate-metabolizing genes and high tHcy levels in gastric carcinogenesis.Wang, L. N Ke, Q Chen, W. S Wang, J. M Tan, Y. F Zhou, Y Hua, Z. L Ding, W. L Niu, J. Y Shen, J Zhang, Z. F Wang, X. R Xu, Y. H Shen, H. B Yi Xing 2007南京医科大学学报(自然科学版)2007,27,7:10
4The Photochemical Study of HSA and BSA with Resonance Light Scattering and Fluorescence Spectra显示文摘The resonance light-scattering (RLS) of human serum albumin (HSA) and bovine serum albumin (BSA) is reported for the first time, and applied to study photochemical reaction of HSA and BSA. The fact of photocrosslinking self-association effect in HSA and BSA solutions is identified by the enhancement of RLS. The fluorescence quenching at about 350 um and 700 um proves that tryptophan (Trp) residues are one of the photochemical activity sites in HSA and BSA molecules. The Rayleigh scattering (RS) spectra of HSA and BSA that were neglected in fluorescence spectra before are found at about 296 um, 592 um and 888 um for the first time, and are of adventageous to studying the aggregation of HSA or BSA. The possible photochemical reaction mechanism is also proposed.Liang, H Shen, XC Li, F Jiang, ZL 2000Chinese Chemical Letters2000,11,3:4
5Common non-synonymous polymorphisms in the BRCA1 Associated RING Domain (BARD1) gene are associated with breast cancer susceptibility:a case-control analysis显示文摘The BRCA1 Associated RING Domain(BARD1) gene has been identified as a high penetrance gene for breast cancer, whose germline and somatic mutations were reported in both non-BRCA1/2 hereditary site-specific and sporadic breast cancer cases. BARD1 plays a crucial role in tumor repression, along with its heterodimeric partner BRCA1. In the current study, we tested the hypothesis that common non-synonymous polymorphisms in BARD1 are associated with breast cancer susceptibility in a case-control study of 507 patients with incident breast cancer and 539 frequency-matched cancer-free controls in Chinese women. We genotyped all three common(minor allele frequency (MAF) > 0.10) non-synonymous polymorphisms(Pro24Ser, Arg378Ser, and Val507Met) in BARD1. We found that the BARD1 Pro24Ser variant genotypes(24Pro/Ser and 24Ser/Ser) and Arg378Ser variant homozygote 378Ser/Ser were associated with a significantly decreased breast cancer risk, compared with their wild-type homozygotes, respectively. Furthermore, a significant locus-locus interaction was evident between Pro24Ser and Arg378Ser (P-int = 0.032). Among the 378Ser variant allele carriers, the 24Pro/Pro wild-type homozygote was associated with a significantly increased breast cancer risk (adjusted OR = 1.81, 95% CI = 1.11-2.95), but the subjects having 24Pro/Ser or Ser/Ser variant genotypes had a significantly decreased risk(adjusted OR = 0.74, 95% CI = 0.56-0.99). In stratified analysis, this locus-locus interaction was more evident among subjects without family cancer history, those with positive estrogen receptor (ER) and individuals with negative progesterone receptor(PR). These findings indicate that the potentially functional polymorphisms Pro24Ser and Arg378Ser in BARD1 may jointly contribute to the susceptibility of breast cancer.Huo, X Hu, Z. B Zhai, X. J Wang, Y Wang, S Wang, X. C Qin, J. W Chen, W. S Jin, G. F Liu, J. Y Gao, J Wei, Q. Y Wang, X. R Shen, H. B 2007南京医科大学学报(自然科学版)2007,27,7:3
6SELECTIVE DIMERIZATION OF BUTANAL TO BUTYL BUTYRATE CATALYZED BY LANTHANOCENE/n-BuLi SYSTEMS显示文摘SELECTIVEDIMERIZATIONOFBUTANALTOBUTYLBUTYRATECATALYZEDBYLANTHANOCENE/n-BuLiSYSTEMS¥FanXU,LiLuZHANG,MingYAO,YuanChenDING,ZhiMi...Xu, F Zhang, LL Yao, YM Ding, YC Bai, ZM Shen, Q 1995Chinese Chemical Letters1995,6,7:2
7A Model for Liquid-Diffusion Catalytically Grown Fibrous Carbon Material显示文摘A mechanism for the catalytically growth of vapor grown fibrous carbon (VGFC) preparing from the floating catalyst method has been proposed, in which liquid diffusion-determined diffusionof carbon atoms through catalyst particles is described mathematically, and the physical andchemical properties of the catalyst particIes during the growth process are taken into account.From the model the growth rate and grown length of VGFC are calculated theoretically whichcoincides with the experimental datal and the necessity of reducing gas such as hydrogen inpreparing VGFC is explained as to reduce Fe3C, which acts as intermediate catalyst shown bythe model. Fe3C formed on the surface of γ-Fe will stop the growth of carbon fiber if they cannot be reduced at once. Additionally, the growth temperature and diameter of VGFC are alsodiscussed in the paper.Zhang, WG Cheng, HM Su, G Fan, YY Li, F Shen, ZH Zhou, BL 1999Journal of Materials Science & Technology1999,15,1:2
8Inductive fault analysis of MOS integrated circuits显示文摘Shen J Maly W Ferguson F 1985IEEE Design and Test of Computers1985,2,12:2
9Atom transfer radical polymerization of methyl methacrylate by silica gel supported copper bromide/multidentate amine 显示文摘Shen Y Q Zhu S P Zeng F Q 2000Macromolecules2000,33,15:1
10A 10-fold improvement in the precision of boron isotopic analysis by negative thermal ionization mass spectrometry 显示文摘Shen J J You C F 2003Anal Chem2003,75,9:1
11Increased serum glycated albumin level is associated with the presence and severity ofcoronary artery disease in type 2 diabetic patients显示文摘PU L J LU L SHEN W F 2007Circ J2007,71,7:1
12High-temperature oxidation of Fe-Cr alloys in wet oxygen显示文摘Shen J N Zhou L J Li T F 1997Oxidation of Metals1997,48,:1
13Angiopoietin- 2 facilitates vascular endothelial grouth factor-induced angiogenesis in the mature mouse brain 显示文摘Zhu Y Lee C Shen F 2005Stroke2005,36,7:1
148-Bromo-2-methylquinoline显示文摘YANG L T SHEN F YE J 2009Acta Cryst2009,65,:1
15Preparation and characterizations of uniform nanosized BaTiO3 crystallites by the high-gravity reactive precipitation method显示文摘Shen Z G Chen J F Yun J 2004Crystal Growth2004,267,:1
16TiO2-based photocatalysis and its applications for waste-water treatment显示文摘Shen W R Zhao W K He F 1998Prog Chem1998,10,4:1
17Preparation of mesoporous carbon from commercial activated carbon with steam activation in the presence of cerium oxide显示文摘Shen W Z Zheng J T Qin Z F 2003Journal of Colloid and Interface Science2003,264,2:1
18A route-neighborhood-based metaheuristic for vehicle routing problem with time windows 显示文摘 Shen S Y 1999European Journal of Operational Research1999,118,:1
19Analysis on the weld defects of AZ91D magnesium alloy joints显示文摘YE H YAN Z L SHEN B XUE Z F 2009Materials Science Forum2009,610,:1
20Atom transfer radical polymerization of 2-(dimethylamino)ethyl methacrylate in aqueous media 显示文摘Zeng F Shen Y Zhu S et M 2000Polym Sci Part A: Polym Chem2000,38,20:1
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