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1Inhibiting effect of antisense oligonucleotides phosphorthioate on gene expression of TIMP-1 in rat liver fibrosis显示文摘AIM To observe the inhibition of antisenseoligonucleotides (asON) phosphorthioate to thetissue inhibitors metalloproteinase-1 (TIMP-1)gene and protein expression in the liver tissue ofimmunologically induced hepatic fibrosis rats.The possibility of reversing hepatic fibrosisthrough gene therapy was observed.METHODS Human serum albumin (HSA) wasused to attack rats, as hepatic fibrosis model, inwhich asONs were used to block the gene andprotein expressing TIMP-1. According to theanalysis of modulator, structure protein, codingseries of TIMP-1 genome, we designed fourdifferent asONs. These asONs were injected intothe hepatic fibrosis models through coccygealvein. The results was observed by RT-PCR formeasuring TIMP-1 mRNA expression,immunohistochemistry and in situ hybridizationfor collagen Ⅰ, Ⅲ, special staining of collagenfiber, and electron microscopic examination.RESULTS Hepatic fibrosis could last within 363days in our modified model. The expressinglevel of TIMP-1 was high during hepatic fibrosisprocess. It has been proved by theimmunohistochemical and the electronmicroscopic examination that the asONphosphorthioate of TIMP-1 could exactly expressin vivo. The effect of colchicine wasdemonstrated to inhibit the expressing level ofmRNA and the content of collagen Ⅰ, Ⅲ in theliver of experimental hepatic fibrosis rats.However, the electron microscopy research andthe pathologic grading of hepatic fibrosisshowed that there was no significant differencebetween the treatment group and the modelgroup (P>0.05).CONCLUSION The experimental rat model ofhepatic fibrosis is one of the preferable modelsto estimate the curative effect of anti-hepaticfibrosis drugs. The asON phosphorthioate ofTIMP-1 could block the gene and proteinexpression of TIMP-1 in the liver of experimentalhepatic fibrosis rats at the mRNA level. It ispossible to reverse hepatic fibrosis, and it isexpected to study a new drug of anti-hepaticfibrosis on the genetic level. Colchicine has verylimited therapeutic effect on hepatic fibrosis,furthermore, its toxicity and side effects areobvious.Qing He Nie Yong Qian Cheng Yu Mei Xie Yong Xing Zhou Yi Zhan Cao The Center of Infectious Disease Diagnosis and Treatment of PLA,Tangdu Hospital,Forth Military Medical University,Xi’an 710038,Shaanxi Province,ChinaDr,Qing He Nie graduated from Qinghai Medical College as a doctor in 1983,got master degree at Beijing 302 Army Hospital in 1993,got doctor degree at the Third Military Medical University in 1998,engaged in postdoctoral research at the Fourth Military Medical University from 1998 to 2000,now an associate professor,specialized in clinical and experimental research of infectious diseases,had more than 90 papers published,coauthor of ten books,first author of one book. 2001World Journal of Gastroenterology2001,7,3:73
2Development of a national VNIR soil-spectral library for soil classification and prediction of organic matter concentrations显示文摘Soil visible-near infrared diffuse reflectance spectroscopy(vis-NIR DRS)has become an important area of research in the fields of remote and proximal soil sensing.The technique is considered to be particularly useful for acquiring data for soil digital mapping,precision agriculture and soil survey.In this study,1581 soil samples were collected from 14 provinces in China,including Tibet,Xinjiang,Heilongjiang,and Hainan.The samples represent 16 soil groups of the Genetic Soil Classification of China.After air-drying and sieving,the diffuse reflectance spectra of the samples were measured under laboratory conditions in the range between 350 and 2500 nm using a portable vis-NIR spectrometer.All the soil spectra were smoothed using the Savitzky-Golay method with first derivatives before performing multivariate data analyses.The spectra were compressed using principal components analysis and the fuzzy k-means method was used to calculate the optimal soil spectral classification.The scores of the principal component analyses were classified into five clusters that describe the mineral and organic composition of the soils.The results on the classification of the spectra are comparable to the results of other similar research.Spectroscopic predictions of soil organic matter concentrations used a combination of the soil spectral classification with multivariate calibration using partial least squares regression(PLSR).This combination significantly improved the predictions of soil organic matter(R2=0.899;RPD=3.158)compared with using PLSR alone(R2=0.697;RPD=1.817).SHI Zhou WANG QianLong PENG Jie JI WenJun LIU HuanJun LI Xi Raphael A VISCARRA ROSSEL 2014Science China Earth Sciences2014,57,7:32
3Hypoxia-regulated microRNAs in human cancer显示文摘Guomin SHEN Xiaobo LI Yong-feng JIA Gary A PIAZZA Yaguang XI 2013Acta Pharmacologica Sinica2013,34,3:18
4China Patient-centered Evaluative Assessment of Cardiac Events Prospective Study of Acute Myocardial Infarction: Study Design显示文摘Rachel P Dreyer Xi Li Xue Du Nicholas S Downing Li Li Hai-Bo Zhang Fang Feng Wen-Chi Guan Xiao Xu Shu-Xia Li Zhen-Qiu Lin Frederick A Masoudi John A Spertus Harlan M Krumholz Li-Xin Jiang 2016Chinese Medical Journal2016,,1:13
5Reaction decoupling in thermochemical fuel conversion and technical progress based on decoupling using fluidized bed显示文摘Thermochemical conversion of fuels via pyrolysis/carbonization,cracking,gasification and combustion has to involve a number of individual reactions called attribution reactions to form an intercorrelated reaction network for any conversion process.By separating one or some attribution reactions from the others to decouple their interactions existing in the reaction network,the so-called reaction decoupling enables a better understanding of the complex thermal conversion process and further the optimization of the conditions for attribution reactions as well as the entire conversion process to realize advanced performances.The dual bed conversion and two-stage conversion are the two representative types of fuel conversion technologies developed in recent years based on reaction decoupling.Many technical advantages have been proven for such decoupling fuel conversion technologies,such as poly-generation of products,low-cost production of high-grade products,elimination of undesirable products or pollutants,easy operation and control,and so on.The treated fuels with decoupling conversion technologies mainly include solid biomass and coal,as well as liquid petroleum oil.This paper is devoted to reiteration of the reaction decoupling concept and further to reviewing the research,developments and successful applications of several decoupling fuel conversion technologies of two such types by using fluidized bed as their major reactors.Zhennan Han Sulong Geng Xi Zeng Shipei Xu a Ping An Jiguang Cheng Jun Yang Feng Li Suyi Zhang Miao Liu Guoqing Guan Guangwen Xu 2018Carbon Resources Conversion2018,1,2:8
6Research on Benefit Distribution Mechanism of Farmers’ Specialized Cooperative Economic Organization显示文摘On the basis of conducting survey in Jiaonan City,the thesis analyzes benefit distribution mechanism of farmers’ specialized cooperative economic organizations:firstly,the benefit correlation is mainly the contract correlation;secondly,the profit distribution is mainly the dividend;thirdly,patronage refund has many connotations;fourthly,the public accumulation has not yet been quantified to individual;fifthly,the government support capital is ill-defined.Based on these,the measures are put forward in order to improve benefit distribution pattern of farmers’ specialized cooperative economic organizations:firstly,reform structure of property rights and realize farmers’ ownership;secondly,change mode of decision-making,and realize farmers’ control;thirdly,increase turnover rebate and realize farmers’ benefiting;fourthly,quantify public accumulation and government support fund.SUN Hao-jie1,WANG Zheng-bing2,WANG Yun-hui3 1.School of Economics and Management,Chang’ an University,Xi’an 710064,China 2.College of Economics and Management,Northwest A & F University,Yangling 712100,China 3.Publicity Office of Party Committee,Xi’an Branch of the People’ Bank of China,Xi’an 710064,China 2011Asian Agricultural Research2011,3,4:5
7MicroRNA-31 functions as an oncogenic microRNA in mouse and human lung cancer cells by repressing specific tumor suppressors显示文摘Liu Xi Sempere Lorenzo F Ouyang Haoxu Memoli Vincent A Andrew Angeline S Luo Yue Demidenko Eugene Korc Murray Shi Wei Preis Meir Dragnev Konstantin H Li Hua DiRenzo James Bak Mads Freemantle Sarah J Kauppinen Sakari Dmitrovsky Ethan 2010Journal of Clinical Investigation2010,,4:3
8Yohimbine protects against endotoxin-induced acute lung injury by blockade of alpha 2A adrenergic receptor in rats显示文摘LIN Ying ZHU Xi YAO Wan-zhen YANG Yan-lin A La-ta CHEN Li 2011Chinese Medical Journal2011,,7:3
9ZrO_2 strengthened NiAl/Cr(Mo,Hf) composite fabricated by powder metallurgyL.Y. Sheng a,b, J.T. Guo c, T.F. Xi a,b, B.C. Zhang c, H.Q. Ye c a PKU-HKUST ShenZhen-Hong Kong Institution, Shenzhen 518057, China b College of Engineering, Peking University, Beijing 100871, China c Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China 2012Progress in Natural Science:Materials International2012,22,3:3
10GLOBAL STABILITY IN TIME-DELAYED 3-DIMENSIONAL RICHARDS MODEL显示文摘We obtain the global attractivity and global asymptotical stability of positive equilibria to a 3-dimensional Richards model with delays. Our results do not depend on the size-asymmetry parameter which measures the degree of the curvature of size-growth among individuals over the entire growth curve, and the shape parameter which affects the shape of model curve. Lastly, we gave a numerical simulation to verify the feasibility of our main results.Lifei Zheng (College of Science, Northwest A and F University, Yangling 712100, Shaan’xi) Huiyan Zhao (College of Plant Protection, Northwest A and F University, Yangling 712100, Shaan’xi) 2010Annals of Differential Equations2010,26,1:3
11MicroRNAs are involved in the self-renewal and differentiation of cancer stem cells显示文摘MicroRNAs (miRNAs ) 是小非编码的 RNA 分子,其主要功能是在 post-transcriptional/translational 调整基因表示,铺平。MiRNAs 玩在正常生物过程的关键角色并且在人的疾病是通常调整 dys 的。干细胞被认为是 “ mother”包括身体的纸巾和机关的区分的房间的所有类型的房间。一个新奇假设建议肿瘤由从癌症干细胞导出的异构的房间组成,它有正常干细胞的类似于那些的自强和区别能力。癌症干细胞从各种各样的肿瘤被孤立并且描绘。在癌症干细胞的自强和区别支持 miRNAs 的关键规章的角色的给定的最近的研究,更好理解 miRNAs 的功能将提供无价的卓见进 tumorigenesis 和肿瘤前进的预防。在这评论,我们将在涉及癌症干细胞的自强和区别的 miRNAs 的学习总结研究进步。Zheng-ming WANG Wen-jun DU Gary A PIAZZA Yaguang XI 2013Acta Pharmacologica Sinica2013,34,11:3
12Measurement of boron isotopes by negative thermal ionization mass spectrometry显示文摘The isobaric interference for boron isotopic measurement by negative thermal ionization mass spectrometry (NTIMS) has been studied. The result shows that the CNO- is not only from the organic material, but also frorn nitrate in loading reagent in NTIMS. Monitoring the mass 43 ion intensity and 43/42 ratio of blank are also necessary for the boron isotopic measurement by NTIMS, other than is only boron content.LIU Wei-Guo1,2,PENG Zi-Cheng, XIAO Yin-Kai,ZHANG Zhao-Feng WANG Zhao-Rong(Department of Earth and Space Sciences,University of Science and Tecnology of China,Hefei 230026 Key Laboratory of Loess and Quaternary Geology,the Chinese Academy of Sciences,Xi’a 2000Nuclear Science and Techniques2000,11,2:2
13Influence of birth order, birth weight, colostrum and serum immunoglobulin G on neonatal piglet survival显示文摘Background: Intake of colostrum after birth is essential to stimulate intestinal growth and function, and to provide systemic immunological protection via absorption of Immunoglobulin G (IgG). The birth order and weight of 745 piglets (from 75 litters) were recorded during a one-week period of farrowing. Only pigs weighing greater than 0.68 kg birth weight were chosen for the trial. Sow colostrum was collected during parturition, and piglets were bled between 48 and 72 hours post-birth. Piglet serum IgG and colostral IgG concentrations were determined by radial immunodiffusion. Results: Sow parity had a significant (P < 0.001) effect on sow colostral IgG concentration, being 5% higher in multiparous females. Sow colostral IgG concentration explained 6% and piglet birth order accounted for another 4% of the variation observed in piglet serum IgG concentration (P < 0.05); however, birth weight had no detectable effect. Piglet serum IgG concentration had both a linear (P < 0.05) and quadratic effect (P < 0.05) on % survival. Piglets with 1,000 mg/dl serum IgG or less (n=24) had a 67% survival; whereas, piglets with IgG concentrations between 2250 to 2500 mg/dl (n=247) had a 91% survival. Birth order had no detectable effect on survival, but birth weight had a positive linear effect (P < 0.05). Piglets weighing 0.9 kg (n = 107) at birth had a 68% survival rate, and those weighing 1.6 kg (n = 158) had an 89% survival. Conclusion: We found that the combination of sow colostrum IgG concentration and birth order can account for 10% of the variation of piglet serum IgG concentration and that piglets with less than 1,000 mg/dl IgG serum concentration and weight of 0.9 kg at birth had low survival rate when compared to their larger siblings. The effective management of colostrum uptake in neonatal piglets in the first 24 hrs post-birth may potentially improve survival from birth to weaning.Rafael A Cabrera Xi Lin Joy M Campbell Adam J Moeser Jack Odle 2013Journal of Animal Science and Biotechnology2013,4,2:2
14Identification of human triple-negative breast cancer subtypes and preclinical models for selection of targeted therapies显示文摘Lehmann Brian D Bauer Joshua A Chen Xi Sanders Melinda E Chakravarthy A Bapsi Shyr Yu Pietenpol Jennifer A 2011Journal of Clinical Investigation2011,,7:2
15Effect of Miscanthus sinensis var.purpurascens Flower Extract on Proliferation and Molecular Regulation in Human Dermal Papilla Cells and Stressed C57BL/6 Mice显示文摘Objective: To investigate the hair growth-promoting effect of Miscanthus sinensis var.purpurascens(MSP) flower extracton on in vitro and in vivo models.Methods: MSP flower extract was extracted in 99.9% methanol and applied to examine the proliferation of human dermal papilla cells(h DPCs) in vitro at the dose of 3.92–62.50 μg/m L and hair growth of C57 BL/6 mice in vivo at the dose of 1000 μg/m L.The expression of transforming growth factor β1(TGF-β1),hepatocyte growth factor(HGF),β-catenin,substance P was measured by relative quantitative realtime polymerase chain reaction.Histopathological and immunohistochemical analysis were performed.Results: MSP(7.81 μg/m L) down-regulated TGF-β1 and up-regulated HGF and β-catenin in h DPCs(P<0.01).MSP(1000 μg/m L)-treated mice showed the earlier transition of hair follicles from the telogen to the anagen phase.The number of mast cells was lower in the MSP-treated mice than in other groups(P<0.05 vs.NCS group).Substance P and TGF-β1 were expressed in hair follicles and skin of the MSP group lower than that in negative control.Stem cell factor in hair follicles was up-regulated in the MSP-treated mice(P<0.01).Conclusion: The MSP flower extract may have hair growth-promotion activities.Gi Hee Jeong William A Boisvert XI Mei-zhu ZHANG Yi-lin Young-Bin Choi Sunghun Cho Sanghyun Lee Changsun Choi Bog-Hieu Lee 2018Chinese Journal of Integrative Medicine2018,24,8:2
16Potential energy curves for the X^1Σ_g^+, B^1△_g and B′~1Σ_g^+ states of C_2 using MRCI and approximate CI methods显示文摘The potential energy curves for the X1Σ g+, B1△g and B′1Σ g+ states of C2 have been studied by using MRC and approximate CI methods, and are benchmarked against the calculations of full configuration in teraction (FCI). The results obtained by MRCI method agree with the FCI very well, and even are accu rate enough to compare other approximate methods as benchmark, when the calculations of FCI ar not feasible. The approximate CI methods mentioned in this paper are reliable for treating chemica problems.LI AnYang1, WANG YuBin2, DOU YuSheng1,3 & WEN ZhenYi1,2 1 Institute of Bio-information, Chongqing University of Post and Telecommunication, Chongqing 400065, China 2 Institute of Modern Physics, Northwest University, Xi’an 710069, China 3 Department of Physical Sciences, Nicholls State University, PO Box 2022, Thibodaux, LA 70310, U. S. A 2007Science China Chemistry2007,50,5:2
17Chloride Penetration in Nonsaturated Concrete 显示文摘ABABNEH A BENBOUJDEMA F XI Y 2003Materials in Civil Engineering2003,33,1:1
18Synthetic applications of photoredox catalysis with visible light显示文摘Xi Y M Yi H Lei A W 2013Org Biomol Chem2013,11,:1
19Chloride Penetration in Nonsaturated Concrete显示文摘ABABNEH A BENBOUDJEMA F XI Y P 2003Journal of Materials in Civil Engineering2003,15,2:1
20Experimental investigation on the breakage of hard rock by the PDC cutters with combined action modes 显示文摘LI Xi -bing Summers D A Rupert G 2001Tunnelling and Underground Space Technology2001,16,:1
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