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1Discovery of ultrahigh-pressure magnesite-bearing garnet lherzolite (>3.8 GPa) in the Altyn Tagh, Northwest China显示文摘Magnesite-bearing garnet Iherzolite from the Altyn Tagh, associated with garnet pyroxenite, and garnet-bearing felsic gneiss, crops out as lenses in Proterozoic gneiss about 100 km east of the Jianggelasayi River. The garnet Iherzolite, together with the eclogite in western Jianggelasayi, composes a high-pressure to ultrahigh-pressure metamorphic belt in the southern margin of the Altyn Tagh. Parageneses of minerals from magnesite-bearing garnet Iherzolite indicate that the rock evolved a multi-stage metamorphism. The peak-stage metamorphism produces an assemblage of Grt+Ol+Opx+Cpx±Mgs, in which A12O3 content of Opxis very low (0.30-0.66wt%). The calculated P-T condition of the peak stage is 3.8-5.lGPa and 880-970°C, some exsolution rods of clinopyroxene and rutile occur in the Grt and magnesite is rimed by dolomite and orthopyroxene, all implying that the peak stage was a UHP metamorphic process. Together with regional geological studies, isotopic dating and the discovery of coesite inclusions inLIU Liang, SUN Yong, XIAO Peixi, CHE Zicheng, LUO Jinhai, CHEN Danling, WANG Yan, ZHANG Anda, CHEN Liang & WANG YongheKey Laboratory of Continental Dynamics of the Ministry of Education, Northwest University, Xi’an 710069, China The Northwest Institute of 2002Chinese Science Bulletin2002,47,11:69
2Expression of nuclear factor-KB in hepatocellular carcinoma and its relation with the X protein of hepatitis B virus显示文摘AIM In this study we investigated therelationship of the X protein of HBV and nuclearfactor-KB (NF-κB) and the expression of NF-KB inhuman hepatocellular carcinoma tissues.METHODS Immunohistochemistry SP methodwas used to detect the expression of NF-κB and the X protein of HBV in human hepatocellularcarcinoma tissues of 52 cases. Gene transfectionmediated by lipofectamine was used to transfectthe eukaryotic expression vector pCDNA3. 1-HBXof HBV x gene into human hepatocellularcarcinoma cell line HCC-9204 and NF-κB wasdetected.RESULTS NF-κB was widely expressed inhuman hepatocellular carcinoma tissues in atotal of 52 cases and its expression was relatedto the X protein of HBV. NF-KB was localizedboth in the cytoplasm and . The nuclei ofhepatocellular carcinoma cells in 11 cases whichwere positive for the X protein of HBV while in 41cases negative for the X protein of HBV, NF-Kbwas only localized in the cytoplasm ofhepatocellular carcinoma cells but translocatedto the nuclei of hepatocellular carcinoma cellsafter the eukaryotic expression vectorpCDNA3.1-HBX was transfected into HCC-9204cells.CONCLUSION This study strongly suggeststhat the nuclear factor NF-KB is widely expressedin hepatocellular carcinoma tissues in differentstyles according to the expression of the Xprotein of HBV. NF-κB is abnormally activated inhepatocellular carcinoma, which is probablyrelated to the X protein of HBV. The X protein ofHBV can activate NF-κB to translocate into nucleiof hepatocellular carcinoma cells.Shuang Ping Guo~1 Wen Liang Wang~1 Yu Qiang Zhai~2 Yi Ling Zhao~1 ~1Department of Pathology,Xijing Hospital of the Fourth Military Medical University,Xi’an,China ~2Department of Urology,the Central Hospital of Xi’an,China 2001World Journal of Gastroenterology2001,7,3:55
3Roux-en-Y choledochojejunostomy using novel magnetic compressive anastomats in canine model of obstructive jaundice显示文摘BACKGROUND:The traditional hand-sewn Roux-en-Y choledochojejunostomy is technically complicated,and the incidence of postoperative complications has remained high.A set of novel magnetic compressive anastomats was introduced to facilitate choledochojejunostomy and improve the prognosis of patients.METHODS:After ligating the common bile duct for 7 days,16 dogs were randomly divided into two groups (n=8 per group).Anastomats were used in the study group,and the traditional hand-sewn method was used in the control group for standard Roux-en-Y choledochojejunostomy.We compared the operation time,incidence of complications,gross appearance,and pathological disparity in stoma between the two groups in 1-month and 3-month follow-up examinations.RESULTS:The time spent on constructing the anastomosis for the study group was significantly shortened.Although no anastomotic stenosis occurred in the two groups,the narrowing rate of biliary-enteric anastomosis was much higher in the control group.There was one case of bile leakage in the control group,whereas no bile leakage occurred in the study group.A smoother surface,an improved layer apposition,and a lower local inflammatory response were identified in the anastomosis of the study group.CONCLUSION:The structures of the novel magnetic compressive anastomats are simple,and they are time-saving,safe and efficient for performing Roux-en-Y choledocho- jejunostomy procedures in a canine model of obstructive jaundice.Chao Fan,Xiao-Peng Yan,Shi-Qi Liu,Chun-Bao Wang,Jian-Hui Li,Liang Yu,Zheng Wu and Yi Lv Department of Hepatobiliary Surgery and Department of Pathology,First Affiliated Hospital,School of Medicine,Xi’an Jiaotong University,Xi’an 710061,China Department of Surgical Oncology,Third Affiliated Hospital,School of Medicine,Xi’an Jiaotong University,Xi’an 710068,China 2012Hepatobiliary & Pancreatic Diseases International2012,11,1:49
4Magnetism parameters characteristics of drilling deposits in Jianghan Plain and indication for forming of the Yangtze River Three Gorges显示文摘The forming time of the Yangtze River Three Gorges is considered as one of keys in the research on the Yangtze River,also is one of the most disputed hotspots.In order to solve the difficult problem,the authors adopt the internationally recognized thoughts and methods of substance tracing from source to sink.The lithologic characteristics,magnetic parameters and magnetic mineral characteristics of deposits in 2 bores are analyzed,which are both sampled from the sedimentary center of the Jianghan Plain.The results are as follows:At about 110 m depth of the core,the contents of coarse materials and stable magnetic mineral both increase significantly.Meanwhile,the magnetic susceptibility of sediment,saturation isothermal remanent magnetization and magnetic susceptibility values of anhysteretic remanent magnetism increase suddenly,which all reflect that at about 110 m depth,the important adjustment has appeared in water system of the Jianghan Plain,and the sedimentary environment and material composition have changed greatly.And it may be the horizon where the Yangtze River Three Gorges formed,its forming time reflected by the paleomagnetic dating is between 1.17 and 1.12Ma B.P.ZHANG YuFen LI Chang'An WANG QiuLiang CHEN Liang Ma YongFa KANG ChunGuo 2008Chinese Science Bulletin2008,53,4:34
5Northernmost paleo-tethyan oceanic basin in Tibet:Geo-chronological evidence from ^(40)Ar/^(39)Ar age dating of Dur'ngoi ophiolite显示文摘Whole rock 40Ar/39Ar age dating has been conducted on a basalt sample from Dur’ngoi ophiolite, Qinghai Province, which was reported to be the northernmost pa-leo-tethyan oceanic basin in Tibet. A high temperature pla-teau age (345.3±7.9 Ma) with an isochorn age (336.6±7.1 Ma) has been obtained, representing the eruption time of oceanic crust Considering related geological settings, the new age provides constraints on the northernmost pa-leo-tethyan suture zone in Tibet and the tectonic evolution of Paleo-tethys in Northeast Tibet and adjacent areas.CHEN Liang, SUN Yong, PEI Xianzhi, GAO Ming, FENG Tao, ZHANG Zhongqing & CHEN Wen1. Laboratory of Continental Dynamics, Northwest University, Xi’an 710069, China 2. Department of Geology, Northwest University, Xi’an, 710069, China 3. Institute of Geology, Chinese Academy of Geological Sciences, Beijing, 100037, China 2001Chinese Science Bulletin2001,46,14:24
6Transcription factor EGR-1 inhibits growth of hepatocellular carcinoma and esophageal carcinoma cell lines显示文摘瞄准:抄写因素 EGR-1 (早生长反应 gene-1 ) 在房间生长,区别和开发起一个重要作用。它鉴别了 EGR-1 在一些瘤举办重要转变抑制活动,例如纤维肉瘤,胸癌。这个实验被设计在 hepatocellular 癌(HCC ) 和食道的癌(EC ) 的癌的过程调查 egr-1 的角色,然后在这些肿瘤细胞的生长上估价 EGR-1 的效果。方法:第一,在 HCC 和 EC 的 egr-1 的抄写和表达式,帕拉癌的纸巾和他们的正常对应物部分被检测由在 situ 杂交和免疫组织化学,与正常的人的胸和是的鼠标大脑纸巾积极控制。Egr-1 基因当时是进 HCC 的 transfected (HHCC, SMMC7721 ) 并且没有 egr-1 抄写和表示是在场的 EC (ECa109 ) 房间在线。在裸体老鼠的房间生长速度, FCM 房间周期,板克隆形成和 tumorigenicity 被观察,控制仅仅是有向量的房间线 transfected。结果:很少或没有 egr-1 抄写和表示在 HCC, EC 和正常的肝纸巾被检测。egr-1 的表示在 hepatocellular 帕拉被发现更高癌的织物(抄写水平 P=0.000;表示水平 P=0.143,可能因为在盒子的数字的少数) 并且食道的癌症的 dysplastic 织物(抄写水平 P=0.000;表示水平 P=0.001 ) 。egr-1-transfected HHCC (HCC 细胞线) 的生长率细胞和 ECa109 (EC 细胞线) 细胞比控制的慢得多。S 阶段房间,克隆形成和 tumorigenicity 的比例控制的是比这些显著地低的(减少 45.5% 在 HHCC 房间并且 34.1% 在 ECa109 房间;46.6% 和 41.8% ;80.4% 和 72.6% 分别地) 。关于上述项目 SMMC7721 (HCC ) egr-1-transfected 房间和控制之间没有明显的差别。结论:egr-1 的减少的表示可能在 HCC 和 EC 的癌的过程在正常生长的 dysregulation 起一个作用。transfected HHCC 和 ECa109 细胞的 Egr-1 基因显示出细胞生长和在 SMMC7721 (HCC 细胞线) 的恶意的显型,而是没有抑制细胞的明显的抑制。Miao-Wang Hao Li Liu,Department of Internal Medicine,Tangdu Hospital,Xi’an 710038,Shaanxi Province,China Ying-Rui Liang Ming-Yao Wu Huan-Xing Yang,Department of Pathology,Medical College of Shantou University,Shantou 515031,Guangdong Province,China Yan-Fang Liu,Department of Pathology,Fourth Military Medical University,Xi’an 710032,Shaanxi Province,China 2002World Journal of Gastroenterology2002,8,2:24
7Effects of aminoguanidine on nitric oxide production induced by inflammatory cytokines and endotoxin in cultured rat hepatocytes显示文摘AIM To study the effects of aminoguanidine(AG) and two L-arginine analogues Nω-nitro-L-arginine methyl ester (L-NAME) and Nω-nitro-L-arginine (L-NNA) on nitric oxide (NO) productioninduced by cytokines (TNF-α, IL-11β, and IFN-γ)and bacterial lipopolysaccharide (LPS) mixture(CM) in the cultured rat hepatocytes, andexamine their mechanisms action.METHODS Rat hepatocytes were incubatedwith AG, L-NAME, L-NNA, Actinomycin D (ActD)and dexamethasene in a medium containing CM(LPS plus TNF-α, IL-1β, and IFN-γ) for 24 h. NOproduction in the cultured supernatant wasmeasured with the Griese reaction. IntracellularcGMP level was detected with radioimmunoasey.RESULTS NO production was markedlyblocked by AG and L-NAME in a dose-dependentmanner under inflammatory stimuli conditiontriggered by CM in vitro. The rate of themaximum inhibitory effects of L-NAME (38.9%)was less potent than that obtained with AG(53.7%, P<0.05). There was no significantdifference between the inhibitory effects of AGand two L-arginine analogues on intracellularcGMP accumulation in rat cultured hepatocytes.Non-specific NOS expression inhibitordexamethasone ( DEX ) and iNOS mRNAtranscriptional inhibitor ActD also significantlyinhibited CM-induced NO production. AG(0.1mmol.L-1) and ActD (0.2ng@Lt) wereequipotent in decreasing NO production inducedby inflammatory stimuli in vitro, and botheffects were more potent than that induced bynon-selectivity NOS activity inhibitor L-NAME(0. 1 mmol@ L- 1) under similar stimuli conditions(PGuo Liang Zhang Ye Hong Wang Hui Ling Teng Zhi Bin Lin Department of Pharmacology,School of Basic Medical Sciences,Beijing University,Beijiog 100083,ChinaDr.Guo Liang Zhang graduated from Xinxiang Medical College in 1982,got Ph.D.at Nagoya City University Medical School,Japan in 1994,finished postdoctoral research at Beijing Medical Univcrsity in 1996,now an associate professor of pharmacology,specialized in hepatic pharmacology,having 15 papers published. 2001World Journal of Gastroenterology2001,7,3:20
8Overexpression of p27^(KIP1)induced cell cycle arrest in G_1 phase and subsequent apoptosis in HCC-9204 cell line显示文摘AIM We have previously reported that inducibleover-expression of Bak may prolong cell cycle inG1 phase and lead to apoptosis in HCC-9204 cells.This study is to investigate whether p27KIP1playsan important role in this process.METHODS In order to elucidate the exactfunction of p27KIP1in this process,a zinc induciblep27KIP1stable transfectant and transient p27KIP1-GFP fusion transfectant were constructed.Theeffects of inducible,p27KIP1on cell growth,cellcycle arrest and apoptosis were examined in themock,control pMD vector,and pMD-KIP1transfected HCC-9204 cells.RESULTS This p27KIP1-GFP transfectant maytransiently express the fusion gene.The cellgrowth was reduced by 35% at 48 h of p27KIP1induction with zinc treatment as determined bytrypan blue exclusion assay.These differencesremained the same after 72 h of p27KIP1expression,p27KIP1caused cell cycle arrest after24 h of induction,with 40% increase in G1population.Prolonged p27KIP1expression in thiscell line induced apoptotic cell death reflected byTUNEL assay.Fourty-eight h and 72 h of p27KIP1expression showed a characteristic DNA ladder onagarose gel electrophoresis. CONCLUSION Bak may induce cell cycle arrest inG1 phase through upregulating expression ofp27KIP1and subsequently lead to apoptosis inHCC-9204 cells.The p27KIP1-GFP fusion proteincan be transiently expressed in HCC-9204 cells.The inducible p27KIP1-expressing cell line providesa model to assess p27KIP1function.Jiang Li Xin Ke Yang Xin Xin Yu Meng Liang Ge Wen Liang Wang Jie Zhang Yun De Hou Department of Pathology,Fourth Military Medical University,Xi’an 710033,Shaanxi Province,China State Key Laboratory for Molecular Virology and Genetic Engineering,Beijing 100052,China Department of Dermatology,Beijing Hospital,Beijing 100016,China Institute of Radiation Medicine,Beijing 100085,China 2000World Journal of Gastroenterology2000,6,4:20
9Tanshinone IIA therapeutically reduces LPS-induced acute lung injury by inhibiting inflammation and apoptosis in mice显示文摘目的: 到学习, lipopolysaccharide (LPS ) 上的 tanshinone IIA (TIIA ) 的效果在老鼠和内在的机制导致了尖锐的肺损害。Min xu Fa-le CAO Yu-fei ZHANG Liang SHAN Xiao-ling JIANG Xiao-jing AN Wei XU Xiu-zhi LIU Xiao-yan WANG 2015Acta Pharmacologica Sinica2015,36,2:19
10EXPERIMENTAL AND NUMERICAL STUDIES ON DYNAMIC COMPRESSIVE BEHAVIOR OF REACTIVE POWDER CONCRETES显示文摘Split Hopkinson pressure bar (SHPB) technique is used to determine the dynamic strength of reactive powder concretes (RPCs) with different steel-fiber contents. Two types of pulse shapers with different thicknesses are considered to reduce the high-frequency-oscillation effect and achieve a nearly constant strain rate over a certain deformation range. It is known that the compressive strength of concrete-like materials is hydrostatic-stress-dependent, and the apparent dynamic strength enhancement comes from both the effects of the hydrostatic stress and strain rate. In order to differentiate them, numerical method is used to calculate the contribution of the hydrostatic stress, and then the genuine strain-rate effect on dynamic compressive strength of RPCs is determined. In addition, the effect of steel-fibers on dynamic strength and failure mode of RPCs is discussed.Yonghua Wang Zhengdao Wang Xiaoyan Liang Minzhe An 2008Acta Mechanica Solida Sinica2008,21,5:18
11Efficacy and safety of intravitreal ranibizumab with panretinal photocoagulation followed by trabeculectomy compared with Ahmed glaucoma valve implantation in neovascular glaucoma显示文摘AIM:To evaluate the efficacy and safety of intravitreal ranibizumab(IVR)with panretinal photocoagulation(PRP)followed by trabeculectomy compared with Ahmed glaucoma valve(AGV)implantation in neovascular glaucoma(NVG).METHODS:This was a retrospective comparative study.We reviewed the cases of a total of 45 eyes from 45 NVG patients among which 23 eyes underwent AGV implantation and the other 22 underwent trabeculectomy. The causes of neovascular glaucoma included:diabetic retinopathy(25 eyes),and retinal vein occlusion(20 eyes).All patients received preoperative IVR combined with postoperative PRP. The mean best-corrected visual acuities(BCVA)were converted to the logarithms of the minimum angle of resolution(log MAR)for the statisitical analyses.Intraocular pressure(IOP),the log MAR BCVA and surgical complications were evaluated before and after surgery.The follow-up period was 12 mo.RESULTS:A total of 39 cases showed complete regression of iris neovascularization at 7d after injection,and 6 cases showed a small amount of residual iris neovascularization. The success rates were 81.8% and 82.6% at 12 mo after trabeculectomy and AGV implantation,respectively. In the trabeculectomy group,the log MAR BCVA improved at the last follow-up in 14 eyes,remained stable in 6 eyes and decreased in 2 eyes. In 4 cases,slight hyphemas developed after trabeculectomy. A shallow anterior chamber developed in 2 cases and 2 vitreous hemorrhages. In the AGV group,the log MAR BCVA improved in 14 eyes,remained stable in 5 eyes and decreased in 4 eyes. Slight hyphemas developed in 3 cases,and a shallow anterior chamber in 3 cases. The mean postoperative IOP was significantly lower in both groups after surgery(F=545.468,P<0.05),and the mean postoperative log MAR BCVA was also significantly improved(F=10.964,P<0.05)with no significant difference between two groups.CONCLUSION:It is safe and effective to treat NVG with this combined procedure,and we found similar results after IVR+AGV implantation+PRP and IVR+trabeculectomy+PRP in eyes with NVG.Jin-Tao Sun Hai-Jing Liang Meng An Da-Bo Wang 2017International Journal of Ophthalmology(English edition)2017,10,3:14
12The Arabidopsis PARAQUAT RESISTANT2 gene encodes an S-nitrosoglutathione reductase that is a key regulator of cell death显示文摘S-nitrosoglutathione (GSNO ) 的新陈代谢,主要生物学上活跃的氮的氧化物(没有) 种类,被进化地保存的 GSNO reductase (GSNOR ) 催化。以前的研究证明 Arabidopsis GSNOR1/HOT5 基因调整水杨酸酸由 modulating 发信号和 thermotolerance 细胞内部的 S-nitrosothiol 水平。这里,我们报导 Arabidopsis paraquat resistant2-1 (par2-1 ) 的描述显示出反房间死亡显型的异种。当由 paraquat (1,1'-dimethyl-4,4'-bipyridinium 二氯化物) 对待时,在 par2-1 的 superoxide 的生产比得上野类型的植物的,建议 PAR2 调整房间死亡的 superoxide 下游地行动。PAR2,由位置的克隆识别了,被显示与 GSNOR1/HOT5 相同。par2-1 异种在高度保存的 glycine 带一个错误感觉变化,它使变异的蛋白质变为不稳定。比作野类型, par2-1 异种有一不更高铺平,由与 4,5-diaminofluorescein diacetate 染色揭示了。与这结果一致,对待与的野类型的植物一没有施主显示抵抗到 paraquat。有趣地, GSNOR1/HOT5/PAR2 蛋白质水平除它的不变的 mRNA 水平以外,被 paraquat 导致,但是被没有施主减少。一起拿,这些结果建议 GSNOR1/HOT5/PAR2 在通过 modulating 在植物房间调整房间死亡起一个重要作用细胞内部没有水平。Ruiqiang Chen Shulan Sun Chun Wang Yansha Li Yan Liang Fengying An Chao Li Haili Dong Xiaohui Yang Jian Zhang Jianru Zuo 2009Cell Research2009,19,12:14
13Risk factors and long-term health consequences of macrosomia:a prospective study in Jiangsu Province,China显示文摘We sought to determine risk factors associated with fetal macrosomia and to explore the long-term consequence of infant macrosomia at the age of 7 years.A prospective population based cohort study was designed to examine the associations between maternal and perinatal characteristics and the risk of macrosomia.A nested case-control study was conducted to explore the long-term health consequence of infant macrosomia.The mean maternal age of the macrosomia group was 24.74±3.32 years,which is slightly older than that in the control group(24.35±3.14 years,P = 0.000).The mean maternal body mass index(BMI) at early pregnancy was 22.75±2.81 kg/m 2,which was also higher than that in the control group(21.76±2.59 kg/m 2,P = 0.000).About 64.6% of macrosomic neonates were males,compared with 51.0% in the control group(P = 0.000).Compared with women with normal weight(BMI:18.5-23.9 kg/m 2),women who were overweight(BMI:24-27.9 kg/m 2) or obese(BMI ≥ 28 kg/m 2),respectively,had a 1.69-fold(P = 0.000) and a 1.49-fold(P = 0.000) increased risks of having a neonate with macrosomia,while light weight(BMI<18.5 kg/m 2) women had an approximately 50% reduction of the risk.Furthermore,macrosomia infant had a 1.52-fold and 1.50-fold risk,respectively,of developing overweight or obesity at the age of 7 years(P = 0.001 and P = 0.000).Older maternal age,higher maternal BMI at early pregnancy and male gender were independent risk factors of macrosomia.Macrosomic infant was associated with an increased predisposition to develop overweight or obesity at the beginning of their childhood.Shouyong Gu Xiaofei An Liang Fang Xiaomin Zhang Chunyan Zhang Jingling Wang Qilan Liu Yanfang Zhang Yongyue Wei Zhibin Hu Feng Chen Hongbing Shen 2012The Journal of Biomedical Research2012,26,4:14
14The Innovation of CNC Machine Interface Based on DNC System显示文摘This paper describes the innovation schemes of the interface of a CNC machinewhich cannot communicate with a computer by a Direct Numerical Control(DNC)interface andthe functions of a DNC interface system.One architecture of hardware and software of a practi-cal single-chip computer based on DNC interface system developed by the authors is given.Without any change of the original hardware and software,this DNC interface system has beenused to innovate the CNC machine’s interface to implement the direct communication between acomputer and a CNC machine and to achieve no tape transmission of a part program and ma-chine parameters.It has been demonstrated that this DNC interface system has certain practicalvalues in improving the reliability,efficiency and production management of CNC/NC machine.Luo Jianjun Fan Liuqun Liang Gongqian China Research and Education Center of Plant Engineering,Northwestern Polytechnical University Xi’an,710072,P.R.China 1997International Journal of Plant Engineering and Management1997,2,1:11
15Tread Wear and Footprint Geometrical Characters of Truck Bus Radial Tires显示文摘Wear and mileage performance are the foremost performances for truck bus radial (TBR) tires. There are a lot of researches about the tire wear performance as well as the contact patch phenomenon by using finite element analysis (FEA) method or testing. But there is little published data on the correlations between the footprint geometry and the tread wear performance of tires. In this paper, an experiment on tire-ground performance of TBR tires is carried out by using Tekscan. The real-time changes of contact-area pressure distribution that occurred during the process of continuous load and unload are recorded. Three types of tires that act differently in behavior under normal usage are analyzed. A new method of researching in tire tread wear, which focuses on the geometrical characters of the footprint, is put forward. The experimental results of the three tires are described by using footprint geometrical characters. On the basis of studying the changing laws of footprint geometrical characters during the loading process and considering consumer survey and factory feedback information, the correlations between the geometrical character of footprints and tread destruction form are built. The analyzed results show that a greater contact area coefficient and a steady coefficient of contact result in a better wear performance for TBR tires. The footprint-shape coefficient changing laws in the process of loading are found to have a very good coincidence with the tread wear of the three types of tires. Tires with a smaller footprint-shape coefficient are likely to have an average tread wear while avoiding the shoulder wear first. The proposed research provides a new solution to predict tire-ground performance at the point of footprint and several useful references for improving tire design.LIANG Chen WANG Guolin AN Dengfeng MA Yinwei 2013Chinese Journal of Mechanical Engineering2013,26,3:11
16Recent progress on the recycling technology of Li-ion batteries显示文摘Lithium-ion batteries(LIBs)have been widely applied in portable electronic devices and electric vehicles.With the booming of the respective markets,a huge quantity of spent LIBs that typically use either LiFePO_(4) or Li N_(x)Co_(y)Mn_(z)O_(2) cathode materials will be produced in the very near future,imposing significant pressure for the development of suitable disposal/recycling technologies,in terms of both environmental protection and resource reclaiming.In this review,we firstly do a comprehensive summary of the-state-of-art technologies to recycle Li N_(x)Co_(y)Mn_(z)O_(2) and LiFePO_(4)-based LIBs,in the aspects of pretreatment,hydrometallurgical recycling,and direct regeneration of the cathode materials.This closed-loop strategy for cycling cathode materials has been regarded as an ideal approach considering its economic benefit and environmental friendliness.Afterward,as for the exhausted anode materials,we focus on the utilization of exhausted anode materials to obtain other functional materials,such as graphene.Finally,the existing challenges in recycling the LiFePO_(4) and Li N_(x)Co_(y)Mn_(z)O_(2) cathodes and graphite anodes for industrial-scale application are discussed in detail;and the possible strategies for these issues are proposed.We expect this review can provide a roadmap towards better technologies for recycling LIBs,shed light on the future development of novel battery recycling technologies to promote the environmental benignity and economic viability of the battery industry and pave way for the large-scale application of LIBs in industrial fields in the near future.Yuqing Wang Ning An Lei Wen Lei Wang Xiaotong Jiang Feng Hou Yuxin Yin Ji Liang 2021Journal of Energy Chemistry2021,30,4:10
17Effect of resveratrol on cell cycle proteins in murine transplantable liver cancer显示文摘AIM: To study the antitumour activity of resveratrol and its effect on the expression of ceil cycle proteins including cyclin D1, cyclin B1 and p34cdc2 in transplanted liver cancer of murine.METHODS: Murine transplanted hepatoma H22 model was used to evaluate the in vivo antitumor activity of resveratrol.Following abdominal administration of resveratrol, the change in tumour size was recorded and the protein expression of cyclin D1, cyclin B1 and p34cdc2 in the tumor and adjacent noncancerous liver tissues were measured by immunohistochemistry.RESULTS: Following treatment of H22 tumour bearing mice with resveratrol at 10 or 15 mg/kg bodyweight for 10 days,the growth of murine transplantable liver cancer was inhibited by 36.3% or 49.3%, respectively. The inhibitory effect was significant compared to that in control group (P<0.05).The level of expression of cyclin B1 and p34cdc2 protein was decreased in the transplantable murine hepatoma 22treated with resveratrol whereas the expression of cyclin D1 protein did not change.CONCLUSION: Resveratrol exhibits anti-tumour activities on murine hepatoma H22. The underlying anti-tumour mechanism of resveratrol might involve the inhibition of the cell cycle progression by decreasing the expression of cyclinB1 and p34cdc2 protein.Liang Yu Zhong-Jie Sun Sheng-Li Wu Cheng-En Pan, Department of Hepatobiliary Surgery, First Hospital of Xi’an Jiaotong University, Xi’an 710061, Shaanxi Province, China 2003World Journal of Gastroenterology2003,9,10:10
18Myeloid-specific targeting of Notch ameliorates murine renal fibrosis via reduced infiltration and activation of bone marrowderived macrophage显示文摘Macrophages play critical roles in renal fibrosis.However,macrophages exhibit ontogenic and functional heterogeneities,and which population of macrophages contributes to renal fibrosis and the underlying mechanisms remain unclear.In this study,we genetically targeted Notch signaling by disrupting the transcription factor recombination signal binding protein-JK(RBP-J),to reveal its role in regulation of macrophages during the unilateral ureteral obstruction(UUO)-induced murine renal fibrosis.Myeloid-specific disruption of RBP-J attenuated renal fibrosis with reduced extracellular matrix deposition and myofibroblast activation,as well as attenuated epithelial-mesenchymal transition,likely owing to the reduced expression of TGF-β.Mean while,RBP-J deletion significantly hampered macrophage infiltration and activation in fibrotic kidney,although their proliferation appeared unaltered.By using macrophage clearance experiment,we found that kidney resident macrophages made negligible contribution,but bone marrow(BM)-derived macrophages played a major role in renal fibrogenesis.Further mechanistic analyses showed that Notch blockade reduced monocyte emigration from BM by down-regulating CCR2 expression.Finally,we found that myeloid-specific Notch activation aggravated renal fibrosis,which was mediated by CCR2^+macrophages infiltration.In summary,our data have unveiled that myeloid-specific targeting of Notch could ameliorate renal fibrosis by regulating BM-derived macrophages recruitment and activation,providing a novel strategy for intervention of this disease.Yali Jiang Yuanyuan Wang Pengfei Ma Dongjie An Junlong Zhao Shiqian Liang Yuchen Ye Yingying Lu Peng Zhang Xiaowei Liu Hua Han Hongyan Qin 2019Protein & Cell2019,10,3:10
19High quality reference genome of drumstick tree(Moringa oleifera Lam.), a potential perennial crop显示文摘The drumstick tree(Moringa oleifera Lam.) is a perennial crop that has gained popularity in certain developing countries for its high-nutrition content and adaptability to arid and semi-arid environments. Here we report a high-quality draft genome sequence of M. oleifera. This assembly represents 91.78% of the estimated genome size and contains 19,465 protein-coding genes. Comparative genomic analysis between M. oleifera and related woody plant genomes helps clarify the general evolution of this species, while the identification of several species-specific gene families and positively selected genes in M. oleifera may help identify genes related to M. oleifera's high protein content, fast-growth, heat and stress tolerance. This reference genome greatly extends the basic research on M. oleifera, and may further promote applying genomics to enhanced breeding and improvement of M. oleifera.TIAN Yang ZENG Yan ZHANG Jing YANG Cheng Guang YAN Liang WANG XuanJun SHI ChongYing XIE Jing DAI TianYi PENG Lei ZENG HUAN Yu XU An Ni HUANG YeWei ZHANG JiaJin MA Xiao DONG Yang HAO ShuMei SHENG Jun 2015Science China(Life Sciences)2015,58,7:10
20Oncogenic AURKA-enhanced N6-methyladenosine modification increases DROSHA mRNA stability to transactivate STC1 in breast cancer stem-like cells显示文摘RNase III DROSHA is upregulated in multiple cancers and contributes to tumor progression by hitherto unclear mechanisms.Here,we demonstrate that DROSHA interacts withβ-Catenin to transactivate STC1 in an RNA cleavage-independent manner,contributing to breast cancer stem-like cell(BCSC)properties.DROSHA mRNA stability is enhanced by N6-methyladenosine(m^(6)A)modification which is activated by AURKA in BCSCs.AURKA stabilizes METTL14 by inhibiting its ubiquitylation and degradation to promote DROSHA mRNA methylation.Moreover,binding of AURKA to DROSHA transcript further strengthens the binding of the m^(6)A reader IGF2BP2 to stabilize m^(6)A-modified DROSHA.In addition,wild-type DROSHA,but not an m^(6)A methylation-deficient mutant,enhances BCSC stemness maintenance,while inhibition of DROSHA m^(6)A modification attenuates BCSC traits.Our study unveils the AURKA-induced oncogenic m^(6)A modification as a key regulator of DROSHA in breast cancer and identifies a novel DROSHA transcriptional function in promoting the BCSC phenotype.Fei Peng Jie Xu Bai Cui Qilan Liang Sai Zeng Bin He Hong Zou Manman Li Huan Zhao Yuting Meng Jin Chen Bing Liu Shasha Lv Peng Chu Fan An Zifeng Wang Junxiu Huang Yajing Zhan Yuwei Liao Jinxin Lu Lingzhi Xu Jin Zhang Zhaolin Su Zhiguang Li Fangjun Wang Eric W-FLam Quentin Liu 2021Cell Research2021,31,3:9
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