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181篇 您的检索式:作者名="Wu YX"
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1Induction of apoptosis by arsenic trioxide and hydroxycamptothecin in gastric cancer cells in vitro显示文摘AIM To study the effects of arsenic trioxide andHCPT on different degrees of differentiated gastriccancer cells(SGC-7901,MKN-45,MKN-28)withrespect to both cytotoxicity and induction ofapoptosis in vitro.METHODS The cytotoxicity of As2O3 and HCPTon gastric cancer cells was determined by MTTassay.Morphologic changes of apoptosis ofgastric cancer cells were observed by lightmicroscopy and transmission electron microscopy.Apoptosis and cell cycle changes of gastric cancercells induced by HCPT and As2O3 were investigatedby TUNEL method and flow cytometry.RESULTS As2O3 and HCPT had remarkablecytotoxic effects on different degrees ofdifferentiated gastric cancer cells.The IC50ofAs2O3 on well differentiated gastric cancer cellMKN-28,moderately differentiated gastric cancercell SGC-7901,and poorly differentiated gastriccancer cell MKN-28 were 8.91 μmol/L,10.57μmol/L,and 11.65 μmol/L,respectively.The IC50of HCPT on MKN-28,SGC-7901,and MKN-45 were9.35 mg/L,10.21 mg/L,and 12.63 mg/Lrespectively after 48 h treatment.After 12 h ofexposure to both drugs,gastric cancer cellsexhibited morphologic features of apoptosis,including cell shrinkage,nuclear condensation, and formation of apoptotic bodies.A typicalsubdiploid peak before G0/G1 phase was observedby flow cytometry.The apoptotic rates of SGC-7901,MKN-45,and MKN-28 were 13.84%,22.52%,and 9.68%,respectively after 48 hexposure to 10 μmol/L As2O3.The apoptotic ratesof SGC-7901,MKN-45,and MKN-28 were 21.88%,12.35%,and 30.26%,respectively after 48 hexposure to 10 mg/L HCPT.The apoptotic indicewere 7%-15% as assessed by TUNEL method.The effect of As2O3 on SGC-7901 showedremarkable cell cycle specificity,which inducedcell death in G1 phase,and blocked G2/M phase.HCPT also showed a remarkable cell cyclespecificity,by inducing cell death and apoptosis inG1 phase and arrest of proliferation at S phase.CONCLUSION As2O3 and HCPT exhibitsignificant cytotoxicity on gastric cancer cells byinduction of apoptosis.As2O3 and HCPT mighthave a promising prospect in the treatment ofgastric cancer,which needs to be further studied.Tu SP Zhong J Tan JH Jiang XH Qiao MM Wu YX Jiang SH 2000World Journal of Gastroenterology2000,6,4:43
2CT arterial portography and CT hepatic arteriography in detection of micro liver cancer显示文摘AIM To recognize the characteristic findings of micrQliver cancer (MLC) and to evaluate the effect of CT arterial portography (CTAP) and CT hepatic arteriography (CTHA) in diagnosis of MLC. METHODS Between April 1996 to December 1998, CTAP and CTHA were performed in 12patients with MLC, which were not detect ed byconventional CT examinations. After CTHA, 3 mL-- 5 mL mixture of lipiodol, doxorubic in andmitomycin C were injected into hepatic arterythrough the catheter, and then followed up by CTthree or four weeks later (Lipiodol CT LP-CT).RESULTS A total of 22 micro--tumors (0 .2 cm 0.6 cm in diameter ) were detected in 12patients, which manifested as small perfusiondefects in CTAP and small round enhancement inCTHA. The rate of detectability of CTAP andCTHA was 68.2% (15/ 22) and 77.3% (17/ 22)respectively, and the rate of the simultaneoususe of both procedures reached 86. 4% (19/ 22 ).All micro--tumors were demonstrated as punctatelipiodol deposit fool in LP--CT. After LP--CT, theelevated serum level of Q-fetoprotein (AFP)dropped to the normal level in all patients.CONCLUSION The CTAP and CTHA are the mostsensitive imaging methods for detecting microIiver cancer. Confirmed by the change of theelevated serum AFP level and lipiodol depositfool in LP-CT, small perfusion defects in CTAPand punctate enhancement in CTHA may suggestmicro--liver cancer.Li L Wu PH Mo YX Lin HG Zheng L Li JQ Lu LX Ruan CM Chen L 1999World Journal of Gastroenterology1999,5,3:16
3Identification of tumor associated single-chain Fv by panning and screening antibody phage library using tumor cells显示文摘AIM:To study the feasibility of panning and screeningphage-displaying recombinant single-chain variablefragment (ScFv) of anti-tumor monoclonal antibodiesfor fixed whole cells as the carriers of mAb-bindingantigens.ME,ODS: The recombinant phage displaying librariesfor anti-colorectal tumor mAb MC3Ab, MC5Ab andanti-gastric tumor mAb MGD1 was constructed.Panning and screening were carried outby means ofmodified fixation of colorectal and gastric tumor cellsexpressed the mAb-binding antigens. Concordance ofbinding specificity to tumor cells between phageclones and parent antibodies was analyzed. Thephage of positive clones was identified withcompetitive ELISA, and infected by E.coli HB2151 toexpress soluble ScFv.RESULTS:The ratio of positive clones to MC3-ScF-MC5-ScFv and MGD1-ScFv were 60 %, 24 % and 30 %. MC3-ScFv had Mr 32 000 confirmed by Western blot. Thespecificity to antigen had no difference between 4positive recombinant phage antibodies and MC3Ab.CONCLUSION:The modified process of fixing wholetumor cells is efficient, convenient and feasible to panand screen the phage-displaying ScFv of anti-tumormonoclonal antibodies.Nie, YZ He, FT Li, ZK Wu, KC Cao, YX Chen, BJ Fan, DM 2002World Journal of Gastroenterology2002,8,4:12
4Diagnosis of bile duct hepatocellular carcinoma thrombus without obvious intrahepatic mass显示文摘AIM:To study the diagnosis of hepatocellular carcinoma(HCC)presenting as bile duct tumor thrombus with no detectable intrahepatic mass.METHODS:Six patients with pathologically proven bile duct HCC thrombi but no intrahepatic mass demonstrated on the preoperative imaging or palpated intrahepatic mass during operative exploration,were collected.Their clinical and imaging data were retrospectively analyzed.The major findings or signs on comprehensive imaging were correlated with the surgical and pathologic findings.RESULTS:Jaundice was the major clinical symptom of the patients.The elevated serum total bilirubin,direct bilirubin and alanine aminotransferase levels were in concordance with obstructive jaundice and the underlying liver disease.Of the 6 patients showing evidence of viral hepatitis,5 were positive for serum alpha fetoprotein and carbohydrate antigen 19-9,and 1 was positive for serum carcinoembryonic antigen.No patient was correctly diagnosed by ultrasound.The main features of patients on comprehensive imaging were filling defects with cup-shaped ends of the bile duct,with large filling defects presenting as casting moulds in the expanded bile duct,hypervascular intraluminal nodules,debris or blood clots in the bile duct.No obvious circular thickening of the bile duct walls was observed.CONCLUSION:Even with no detectable intrahepatic tumor,bile duct HCC thrombus should be considered in patients predisposed to HCC,and some imaging signs are indicative of its diagnosis.Long XY Li YX Wu W Li L Cao J. 2010World Journal of Gastroenterology2010,16,39:11
5A novel therapeutic approach to 6-OHDA-induced Parkinson's disease in rats via supplementation of PTD-conjugated tyrosine hydroxylase显示文摘Wu SP Fu AL Wang YX Yu LP Jia PY Li Q Jin GZ Sun MJ 2006中国生物学文摘2006,20,10:9
6脂蛋白a水平与冠状动脉粥样硬化性心脏病患者复发事件的关系显示文摘脂蛋白a是否是冠状动脉粥样硬化性心脏病(冠心病)患者复发性心血管事件(recurrent cardiovascular events,RCVEs)的预测因子尚未确定。本研究旨在探讨脂蛋白a对一个真实世界、大规模首诊心血管事件(cardiovascular event,CVE)患者队列中RCVEs的潜在影响。方法:本实验为多中心的前瞻性研究,纳入经血管造影诊断的冠心病并经历首次CVE的患者7562例。入院时测量所有患者的脂蛋白a浓度.周卫(译) 叶鹏(校) Liu HH Cao YX Jin JL Zhang HW Hua Q Li YF Guo YL Zhu CG Wu NQ Gao Y Xu RX Hong LF 2020中华高血压杂志2020,28,5:5
7Comparing diffusion-weighted and T2-weighted MR imaging for the quantification of infarct size in a neonatal rat hypoxic-ischemic model at 24 h post-injury显示文摘Wang, YX Cheung, PT Shen, GX Bhatia, I Wu, EX Qiu, DQ Khong, PL 2007中国生物学文摘2007,21,11:2
8Preparation for aflatoxin Bl-cationized bovine serum albumin based on Man- nich-type reaction 显示文摘Zhou YX Wu J Yu W 2007J Immunol Methods2007,328,12:1
9Biomeehanieal and histomorphometric characterizations of osseointegration during mini-screw healing in rabbit tibiae 显示文摘Wu J Bai YX Wang BK 2009Angle Orthod2009,79,3:1
10A memory retrieval-extinction procedure to prevent drug craving and relapse显示文摘Xue YX Luo YX Wu P 0,,:1
11Combined effects of glucose oxidase, papain and xylanase on browning inhibi- tion and characteristics of fresh whole wheat dough 显示文摘Yang TY Bai YX Wu FF 2014Journal of Cereal Science2014,60,1:1
12Experimental studies onperipheral nerve regeneration enhanced by nerve growth factor显示文摘Pang QJ Luo YX Wu YG 1993J Tongji Med Univ1993,13,1:1
13Integrated electromicrobial conversion of CO2 to higher alcohols 显示文摘Li H Opgenorth PH Wernick DG Rogers S Wu TY Higashide W Malati P Huo YX Cho KM Liao JC 2012Science2012,335,6076:1
14Polymorphisms of the peroxisome proliferator-activate receptor-γ and its coactivator-1α genes in Chinese women with polycystic ovary syndrome显示文摘Wang Y Wu XK Cao YX 2006Fertil Steril2006,85,5:1
15TanshinoneⅡA prevents cardiac remodeling through attenuating NAD(P)H oxidasederived reactive oxygen species production in hypertensive rats显示文摘Wang P Wu XQ Bao YX 2011Pharmazie2011,66,7:1
16MieroRNA- 200b regulates vascular endothelial growth factor-mediated alterations in diabetic retinopathy 显示文摘McArthur K Feng B Wu YX 2011Diabetes2011,60,:1
17Neural respiratory drive and ventilation in patients with chronic obstructive pulmonary disease during sleep显示文摘Luo YM He BT Wu YX 2014Am J Respir Crit Care Med2014,190,2:1
18Neamine is preferential as an anti-prostate cancer reagent by inhibiting cell proliferation and angiogenesis, with lower toxicity than cis-platinum显示文摘Liu YP Hu GF Wu YX 2015Oncol Lett2015,10,1:1
19New Constituents from Hypericum Japonicum显示文摘NewConstituentsfromHypericumJaponicumJaponicumQingLiWU;ShengPingWANG;YongHongLIAO;LiWeiWANG;YuXiuFENG;JunShanYANG;PeiGenXIAO(...Wu, QL Wang, SP Liao, YH Wang, LW Feng, YX Yang, JS Xiao, PG Hong, SL 1996Chinese Chemical Letters1996,7,11:1
20Preparation for aflatoxin Bl-cationized bovine serum albumin based on Mannich-type reaction显示文摘Zhou YX Wu J J Yu W 2007J Immunol Methods2007,328,12:1
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