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1GPS-constrained inversion of present-day slip rates along major faults of the Sichuan-Yunnan region, China显示文摘A linked-fault-element model is employed to invert for contemporary slip rates along major active faults in the Sichuan-Yunnan region (96°-108°E, 21°-35°N) using the least squares method. The model is based on known fault geometry, and constrained by a GPS-derived horizontal velocity field. Our results support a model attributing the eastward extrusion of the Tibetan Plateau driven mainly by the north-northeastward indentation of the Indian plate into Tibet and the gravitational collapse of the plateau. Resisted by a relatively stable south China block, materials of the Sichuan-Yunnan region rotate clockwise around the eastern Himalayan tectonic syntaxis. During the process the Garzê-Yushu, Xianshuihe, Anninghe, Zemuhe, Daliangshan, and Xiaojiang faults, the southwest extension of the Xiaojiang fault, and the Daluo-Jinghong and Mae Chan faults constitute the northeast and east boundaries of the eastward extrusion, with their left slip rates being 0.3-14.7, 8.9-17.1, 5.1 ± 2.5, 2.8 ± 2.3, 7.1 ± 2.1, 9.4 ± 1.2, 10.1 ± 2.0, 7.3 ± 2.6, and 4.9 ± 3.0 mm/a respectively. The southwestern boundary consists of a widely distributed dextral transpressional zone other than a single fault. Right slip rates of 4.2 ± 1.3, 4.3 ± 1.1, and 8.5 ± 1.7 mm/a are detected across the Nanhua-Chuxiong-Jianshui, Wuliangshan, and Longling-Lancang faults. Crustal deformation across the Longmenshan fault is weak, with short-ening rates of 1.4 ± 1.0 and 1.6 ± 1.3 mm/a across the Baoxing-Beichuan and Beichuan-Qingchuan segments. Northwest of the Longmenshan fault lies an active deformation zone (the Longriba fault) with 5.1±1.2 mm/a right slip across. Relatively large slip rates are detected across a few faults within the Sichuan-Yunnan block: 4.4±1.3 mm/a left slip and 2.7±1.1 mm/a shortening across the Litang fault, and 2.7±2.3 mm/a right-lateral shearing and 6.7±2.3 mm/a shortening across the Yunongxi fault and its surrounding regions. In conclusion, we find that the Sichuan-Yunnan region is divided into more than a dozen active micro-blocks by a large number of faults with relatively slow slip rates. The eastward extrusion of the Tibetan Plateau is absorbed and adjusted in the region mainly by these faults, other than a small number of large strike-slip faults with fast slip rates.WANG YanZhao WANG EnNing SHEN ZhengKang WANG Min GAN WeiJun QIAO XueJun MENG GuoJie LI TieMing TAO Wei YANG YongLin CHENG Jia LI Peng 2008Science China Earth Sciences2008,51,9:65
2H7N9 virulent mutants detected in chickens in China pose an increased threat to humans显示文摘Jianzhong Shi Guohua Deng Huihui Kong Chunyang Gu Shujie Ma Xin Yin Xianying Zeng Pengfei Cui Yan Chen Huanliang Yang Xiaopeng Wan Xiurong Wang Liling Liu Pucheng Chen Yongping Jiang Jinxiong Liu Yuntao Guan Yasuo Suzuki Mei Li Zhiyuan Qu Lizheng Guan Jinkai Zang Wenli Gu Shuyu Han Yangming Song Yuzhen Hu Zeng Wang Linlin Gu Wenyu Yang Libin Liang Hongmei Bao Guobin Tian Yanbing Li Chuanling Qiao Li Jiang Chengjun Li Zhigao Bu Hualan Chen 2017Cell Research2017,27,12:70
3Mapping wetland changes in China between 1978 and 2008显示文摘Four wetland maps for all China have been produced,based on Landsat and CBERS-02B remote sensing data between 1978 and 2008 (1978,1990,2000 and 2008).These maps were mainly developed by manual interpretation and validated by substantial field investigation in 2009.Based on these maps,we analyzed the 2008 wetland distribution in China and discussed wetland changes and their drivers over the past 30 years.(i) There were about 324097 km 2 of wetlands in 2008,for which inland marshes or swamps were the most common wetland type (35%),with lakes (26%) second.Most of the wetlands were in Heilongjiang,Inner Mongolia,Qinghai and Tibet,occupying about 55% of the national wetland area.(ii) From 1978 to 2008,China's wetland area continually and significantly decreased,by about 33% based on changes in the wetland map.This was in sharp contrast to the increase in artificial wetlands,which increased by about 122%.Inland marshes accounted for the main loss of total wetlands from 1978 to 2000.From 2000 through 2008,riverine and lacustrine wetlands constituted the main wetland loss.Fortunately however,the rate of wetland loss decreased from 5523 to 831 km 2 /a.(iii) The change ratio of lost natural wetlands (including inland and coastal wetlands) to non-wetlands has decreased slightly over the past 30 years.From 1978 to 1990,nearly all natural wetlands (98%) lost were transformed into non-wetlands.However,the ratio declined to 86% from 1990 to 2000,and to 77% from 2000 to 2008.(iv) All Chinese provinces were divided into three groups according to patterns of wetland changes,which could relate to the driving forces of such changes.Tibet was completely different from other provinces,as it was one representative example in which there was a net wetland increase,because of global warming and decreased human activity since 1990.Increased economic development caused considerable wetland loss in most eastern provinces,and artificial wetlands increased.NIU ZhenGuo ZHANG HaiYing WANG XianWei YAO WenBo ZHOU DeMin ZHAO KuiYi ZHAO Hui LI NaNa HUANG HuaBing LI CongCong YANG Jun LIU CaiXia LIU Shuang WANG Lin LI Zhan YANG ZhenZhong QIAO Fei ZHENG YaoMin CHEN YanLei SHENG YongWei GAO XiaoHong ZHU WeiHong WANG WenQing WANG Hong WENG YongLing ZHUANG DaFang LIU JiYuan LUO ZhiCai CHENG Xiao GUO ZiQi GONG Peng 2012Chinese Science Bulletin2012,57,22:51
4Spatio-temporal characteristics of rural settlements and land use in the Bohai Rim of China显示文摘基于多重遥远察觉到的图象解释和分类,和经济、社会的数据,集中于农村解决的这研究和陆地使用在快速的都市化中变化。农村解决,陆地使用的空间、时间的模式和在 Bohai 边界的影响因素在 5 湩映汵? 汰祡以内被探索吗?YANG Ren LIU Yansui LONG Hualou QIAO Luyin 2015Journal of Geographical Sciences2015,25,5:50
5The Sunway TaihuLight supercomputer: system and applications显示文摘The Sunway Taihu Light supercomputer is the world's first system with a peak performance greater than 100 PFlops. In this paper, we provide a detailed introduction to the Taihu Light system. In contrast with other existing heterogeneous supercomputers, which include both CPU processors and PCIe-connected many-core accelerators(NVIDIA GPU or Intel Xeon Phi), the computing power of Taihu Light is provided by a homegrown many-core SW26010 CPU that includes both the management processing elements(MPEs)and computing processing elements(CPEs) in one chip. With 260 processing elements in one CPU, a single SW26010 provides a peak performance of over three TFlops. To alleviate the memory bandwidth bottleneck in most applications, each CPE comes with a scratch pad memory, which serves as a user-controlled cache. To support the parallelization of programs on the new many-core architecture, in addition to the basic C/C++and Fortran compilers, the system provides a customized Sunway Open ACC tool that supports the Open ACC2.0 syntax. This paper also reports our preliminary efforts on developing and optimizing applications on the Taihu Light system, focusing on key application domains, such as earth system modeling, ocean surface wave modeling, atomistic simulation, and phase-field simulation.Haohuan FU Junfeng LIAO Jinzhe YANG Lanning WANG Zhenya SONG Xiaomeng HUANG Chao YANG Wei XUE Fangfang LIU Fangli QIAO Wei ZHAO Xunqiang YIN Chaofeng HOU Chenglong ZHANG Wei GE Jian ZHANG Yangang WANG Chunbo ZHOU Guangwen YANG 2016Science China(Information Sciences)2016,59,7:45
6Seismic Sequence in Carbonate Rocks By Vibrational Liquefaction显示文摘On the basis of the records of strong seismic events taking place in soft carbonate sediments, a new seismic sequence system of vibrational liquefaction is established, which consists of a series of units, such as escaped structure of micrite veins and liquefied deformation formed in the period of seismic liquefaction, land subsidence structure after liquefaction, tsunamic hummocky and turbidite produced by seismic events, This sequence is a generalization and summation of field observation in vast areas, which shows the whole process of a strong seismic event and provides an unified theoretical explanation. The pattern of the seismic sequence by vibrational liquefaction provides one of correlation standards for geologists in the field to discriminate events in carbonate sequences. Based on the pattern of seismic sequence, the authors first advance a new conception of the Palaeo-Tanlu (Tancheng-Lujiang) Zone and discuss primarily its geological significations.Qiao Xiufu, Song Tianrui, Gao Linzhi, Peng Yang, Li Haibing, Gao Mai, Song Biao and Zhang QiaodaInstitute of Geology, Chinese Academy of Geological Sciences, Beijing 1994Acta Geologica Sinica(English Edition)1994,68,3:39
7Kinsenoside attenuates osteoarthritis by repolarizing macrophages through inactivating NF-κB/MAPK signaling and protecting chondrocytes显示文摘The objective was to investigate the effect of kinsenoside(Kin) treatments on macrophage polarity and evaluate the resulting protection of chondrocytes to attenuate osteoarthritis(OA) progression.RAW264.7 macrophages were polarized to M1/M2 subtypes then administered with different concentrations of Kin. The polarization transitions were evaluated with quantitative real-time polymerase chain reaction(q RT-PCR), confocal observation and flow cytometry analysis. The mechanism of Kin repolarizing M1 macrophages was evaluated by Western blot. Further, macrophage conditioned medium(CM) and IL-1β were administered to chondrocytes. Micro-CT scanning and histological observations were conducted in vivo on anterior cruciate ligament transection(ACLT) mice with or without Kin treatment. We found that Kin repolarized M1 macrophages to the M2 phenotype. Mechanistically, Kin inhibited the phosphorylation of IκBα, which further reduced the downstream phosphorylation of P65 in nuclear factor-κB(NF-κB) signaling. Moreover, Kin inhibited mitogen-activated protein kinases(MAPK) signaling molecules p-JNK, p-ERK and p-P38. Additionally, Kin attenuated macrophage CM and IL-1β-induced chondrocyte damage. In vivo, Kin reduced the infiltration of M1 macrophages,promoted M2 macrophages in the synovium, inhibited subchondral bone destruction and reduced articular cartilage damage induced by ACLT. All the results indicated that Kin is an effective therapeutic candidate for OA treatment.Feng Zhou Jingtian Mei Xiuguo Han Hanjun Li Shengbing Yang Minqi Wang Linyang Chu Han Qiao Tingting Tang 2019Acta Pharmaceutica Sinica B2019,9,5:35
8Cost-benefit analysis of esophageal cancer endoscopic screening in high-risk areas of China显示文摘AIM:To estimate the cost-benefit of endoscopic screening strategies of esophageal cancer(EC)in high-risk areas of China. METHODS:Markov model-based analyses were conducted to compare the net present values(NPVs)and the benefit-cost ratios(BCRs)of 12 EC endoscopic screening strategies.Strategies varied according to the targeted screening age,screening frequencies,and follow-up intervals.Model parameters were collected from population-based studies in China,published literatures,and surveillance data. RESULTS:Compared with non-screening outcomes,all strategies with hypothetical 100 000 subjects saved life years.Among five dominant strategies determined by the incremental cost-effectiveness analysis,screening once at age 50 years incurred the lowest NPV(international dollar-I$55 million)and BCR(2.52).Screening six times between 40-70 years at a 5-year interval[i.e., six times(40)f-strategy]yielded the highest NPV(I$99 million)and BCR(3.06).Compared with six times(40)fstrategy,screening thrice between 40-70 years at a 10-year interval resulted in relatively lower NPV,but the same BCR. CONCLUSION:EC endoscopic screening is cost-beneficial in high-risk areas of China.Policy-makers should consider the cost-benefit,population acceptance,and local economic status when choosing suitable screening strategies.Juan Yang wen-Qiang wei Jin Niu Zhi-Cai Liu Chun-Xia Yang You-Lin Qiao 2012World Journal of Gastroenterology2012,18,20:31
9Cancer incidence and patient survival rates among the residents in the Pudong New Area of Shanghai between 2002 and 2006显示文摘With the growing threat of malignancy to health,it is necessary to analyze cancer incidence and patient survival rates among the residents in Pudong New Area of Shanghai to formulate better cancer prevention strategies.A total of 43,613 cancer patients diagnosed between 2002 and 2006 were recruited from the Pudong New Area Cancer Registry.The incidence,observed survival rate,and relative survival rate of patients grouped by sex,age,geographic area,and TNM stage were calculated using the Kaplan-Meier,life table,and Ederer II methods,respectively.Between 2002 and 2006,cancer incidence in Pudong New Area was 349.99 per 100,000 person-years,and the 10 most frequently diseased sites were the lung,stomach,colon and rectum,liver,breast,esophagus,pancreas,brain and central nervous system,thyroid,and bladder.For patients with cancers of the colon and rectum,breast,thyroid,brain and central nervous system,and bladder,the 5-year relative survival rate was greater than 40%,whereas patients with cancers of the liver and pancreas had a 5-year relative survival rate of less than 10%.The 1-year to 5-year survival rates for patients grouped by sex,age,geographic area,and TNM stage differed significantly(all P<0.001).Our results indicate that cancer incidence and patient survival in Pudong New Area vary by tumor type,sex,age,geographic area,and TNM stage.Xiao-Pan Li Guang-Wen Cao Qiao Sun Chen Yang Bei Yan Mei-Yu Zhang Yi-Fei Fu Li-Ming Yang 2013Chinese Journal of Cancer2013,32,9:27
10Records of the East Asian winter monsoon from the mud area on the inner shelf of the East China Sea since the mid-Holocene显示文摘AMS14C dating and analysis of grain size,major elements and clay minerals were applied to Core MZ01 from the mud area on the inner shelf of the East China Sea.Based on the environmentally sensitive grain size,clay mineral and major element assemblages,the history of the East Asia winter monsoon since the mid-Holocene could be reconstructed.These three proxies,mean grain size(>9.71μm),chemical index of alteration(CIA)and ratio of smectite to kaolinite in particular,show similar fluctuation patterns. Furthermore,10 extreme values corresponding to the contemporary cooling events could be recognized since the mid-Holocene;these extreme values are likely to have been caused by the strengthening of the East Asia winter monsoon.The cooling events correlated well with the results of theδ18O curves of the Dunde ice core and GISP2,which therefore revealed a regional response to global climate change.Four stages of the East Asia winter monsoon were identified,i.e.8300-6300 a BP,strong and unstable;6300-3800 a BP,strong but stable;3800-1400 a BP,weak and unstable;after 1400 a BP,weak but stable.LIU ShengFa SHI XueFa LIU YanGuang QIAO ShuQing YANG Gang FANG XiSheng WU YongHua LI ChaoXin LI XiaoYan ZHU AiMei GAO JingJing 2010Chinese Science Bulletin2010,55,21:25
11A single center investigation of bare-metal or drug-eluting stent restenosis from 1633 consecutive Chinese Han ethnic patients显示文摘Background Stents are widely used in China but the clinical impression is somehow that restenosis is less common because of the lower prevalence of coronary artery disease (CAD) and associated risk factors in Chinese populations. However, no large-sample published studies are available on angiographic stent restenosis including those of bare-metal stent (BMS) or drug-eluting stent (DES) in Chinese Han ethnic population. Mothods A total of 1633 consecutive patients with CAD who had undergone coronary stenting, quantitative coronary angiography (QCA) were retrospectively studied. At the time of stent implantation and at 7 months post-stenting 675 patients had a follow-up angiography. Statistical analysis was made with the chi-square test for categorical variables, unpaired t test for continuous variables, univariate or multivariate regression for baseline and angiographic characteristics and the Kaplan-Meier method for rate of target lesion revascularization (TLR). Results Stent restenosis was defined as ≥50% diameter stenosis in the dilated segment. A total of 675 patients with 1074 lesions were subjected to angiographic follow-up for 7 months on average. Of these lesions, 448 were implanted with BMS whereas 626 lesions with DES. At 7 months, bare-metal in-stent restenosis occured in 148 lesions (33.0%), and bare metal in-segment restenosis in 155 lesions (34.6%) in contrast to drug-eluting in-stent restenosis in 48 lesions (7.7%) and drug-eluting in-segment restenosis in 73 lesions (11.7%) (P<0.001 compared with BMS respectively). Late loss in both in-stent and in segment was higher in BMS than in DES groups [(1.00±0.69) vs (0.28±0.52); (0.78±0.71) vs (0.21±0.52), P<0.001 respectively]. Angulated lesion, lesion length, pre-procedural minimal luminal diameter (MLD), and BMS were independent predictors for TLR, (P<0.01 respectively), whereas current smoker, ostial lesion, and stent overlapping, post-procedure in-stent MLD, lesion length, and stent types were independent predictors for in-segment restenosis (P<0.01 respectively). Standard coronary risk factors such as hypertension, hyperlipidemia, diabetes, and history of CAD were not associated with a higher rate of restenosis caused by BMS or DES implantation in our Chinese Han ethnic population. Conclusions Coronary stenting including BMS or DES implantation in Chinese Han ethnic patients is associated with a restenosis rate comparable to that demonstrated in previous studies from the western countries, and predictors of stent restenosis are somehow different from those in the western population.XU Bo LI Jian-jun YANG Yue-jin MA Wei-hua CHEN Ji-lin QIAO Shu-bin QIN Xue-wen YAO Min LIU Hai-bo WU Yong-jian YUAN Jin-qing CHEN Jue YOU Shi-jie DAI Jun XIA Ran GAO Run-lin 2006Chinese Medical Journal2006,,7:23
12Outcomes of using Firebird rapamycin eluting stents in routine coronary intervention practice: one-year results from the pilot study of Firebird in China registry显示文摘LIU Hai-bo XU Bo GAO Run-lin YANG Yue-jin YAO Min QIN Xue-wen WU Yong-jian YUAN Jin-qing MA Wei-hua QIAO Shu-bin CHEN Ji-lin 2006Chinese Medical Journal2006,,7:22
13Pseudolaric acid B induces apoptosis,senescence,and mitotic arrest in human breast cancer MCF-7显示文摘目的:现在的学习的目的是在人的乳癌 MCF-7 cells.Methods:3-( 4,5-dimethylthiazol-2-yl )上调查 pseudolaric 酸 B ( PAB )的禁止的效果 -2,5-diphenyltetrazolium 溴化物分析,词法变化,染色的吖啶橙,并且统帅玫瑰胶化电气泳动被使用检测 apoptotic 的 apoptosis.The 百分比,坏死的房间被lactate 脱氢酶计算基于活动的细胞毒性试金;联系的老朽( SA ) -beta-galactosidase 活动被检测评估老朽; propidium 碘化物染色的流动 cytometric 分析被执行调查房间周期的分发,并且蛋白质表示被西方的污点 analysis.Results 检验:在 apoptosis 期间,半最大的禁止的集中 IC50 是在在 PAB 治疗以后的 36 和 48 h 的 3.4 和 1.35 亩 mol/L ,暴露于 PAB 的 respectively.The MCF-7 房间显示出 apoptosis 的典型特征,包括词法变化和 DNA 破碎。为 36 h 与 4 亩 mol/L PAB 对待的 MCF-7 房间经历了 apoptosis,然而并非坏死。PAB 导致的 apoptosis 独立于死亡受体小径。衰老的房间变得更大并且恭维,并且染色的 SA-p-galactosi-dase 是导致的 positive.PAB 明显的有丝分裂的拘捕和它先于 apoptosis 和老朽。p21 和 p53 的表情起来与 PAB 处理调整了,并且 cyclin B1 起来从细胞质调整了并且搬运,并且支撑了稳定的 levels.Conclusion 到原子核: PAB 在 MCF-7 房间导致了有丝分裂的拘捕并且通过 apoptosis 和老朽禁止了增长。apoptosis 独立于死亡受体小径。Jing-hua YU Qiao CUI Yuan-yuan JIANG Wei YANG Shin-ichi TASHIRO Satoshi ONODERA Takashi IKEJIMA 2007Acta Pharmacologica Sinica2007,28,12:22
14A precise velocity field of tectonic deformation in China as inferred from intensive GPS observations显示文摘Active tectonics, e.g., faulting, folding, and rifting are clearly manifested over the vast territory of China. The in-tensive crustal deformation with long-lived structures has given rise to numerous highly-elevated mountains in the western China with the Yangtze and Yellow rivers downstreaming to the east,LI Qiang YOU XinZhao YANG ShaoMin DU RuiLin QIAO XueJun ZOU Rong WANG Qi 2012Science China Earth Sciences2012,55,5:23
15Time-dependent categorization of volatile aroma compound formation in stewed Chinese spicy beef using electron nose profile coupled with thermal desorption GC–MS detection显示文摘In the present study,flavor profiles of Chinese spiced beef in the cooking process were comparatively analyzed by electronic nose,gas chromatography–mass spectrometry(GC–MS)with a thermal desorption system(TDS),and solid-phase microextraction(SPME).A total of 82 volatile compounds were identified,and 3-methyl-butanal,pentanal,hexanal,-xylene,heptanal,limonene,terpinene,octanal,linalool,4-terpinenol,-terpineol,and(E)-anethole were identified as the characteristic flavor compounds in Chinese spiced beef.Variation in the content of volatile components produced by different cooking processes was observed.In general,a cooking time of 4 h resulted in optimal flavor quality and stability.Results indicated that the electronic nose could profile and rapidly distinguish variation among different cooking time.The volatile profiling by TDS-GC–MS and responses from the electronic nose,in combination with multivariate statistical analysis,are a promising tool for control the cooking process of spiced beef.Hui Gong Zhen Yang Meng Liu Zhijia Shi Jiapeng Li Wenhua Chen Xiaoling Qiao 2017Food Science and Human Wellness2017,6,3:21
16Astragalus polysaccharides suppress ICAM-1 and VCAM-1 expression in TNF-a-treated human vascular endothelial cells by blocking NF-KB activation显示文摘Yu-ping ZHU Tao SHEN Ya-jun LIN Bei-dong CHEN Yang RUAN Yuan CAO Yue QIAO Yong MAN Shu WANG Jian LI 2013Acta Pharmacologica Sinica2013,34,8:20
17Effect of erythropoietin combined with hypothermia on serum tau protein levels and neurodevelopmental outcome in neonates with hypoxic-ischemic encephalopathy显示文摘Although hypothermia therapy is effective to treat neonatal hypoxic-ischemic encephalopathy,many neonatal patients die or suffer from severe neurological dysfunction.Erythropoietin is considered one of the most promising neuroprotective agents.We hypothesized that erythropoietin combined with hypothermia will improve efficacy of neonatal hypoxic-ischemic encephalopathy treatment.In this study,41 neonates with moderate/severe hypoxic-ischemic encephalopathy were randomly divided into a control group(hypothermia alone for 72 hours,n = 20) and erythropoietin group(hypothermia + erythropoietin 200 IU/kg for 10 days,n = 21).Our results show that compared with the control group,serum tau protein levels were lower and neonatal behavioral neurological assessment scores higher in the erythropoietin group at 8 and 12 days.However,neurodevelopmental outcome was similar between the two groups at 9 months of age.These findings suggest that erythropoietin combined with hypothermia reduces serum tau protein levels and improves neonatal behavioral neurology outcome but does not affect long-term neurodevelopmental outcome.Hong-yan Lv Su-jing Wu Qiu-li Wang Li-hong Yang Peng-shun Ren Bao-jun Qiao Zhi-ying Wang Jia-hong Li Xiu-ling Gu Lian-xiang Li 2017Neural Regeneration Research2017,12,10:20
18ELASTIC MODULUS REDUCTION METHOD FOR LIMIT LOAD EVALUATION OF FRAME STRUCTURES显示文摘A new strategy for elastic modulus adjustment is proposed based on the element bearing ratio (EBR),and the elastic modulus reduction method (EMRM) is proposed for limit load evaluation of frame structures. The EBR is defined employing the generalized yield criterion,and the reference EBR is determined by introducing the extrema and the degree of uniformity of EBR in the structure. The elastic modulus in the element with an EBR greater than the reference one is reduced based on the linear elastic finite element analysis and the equilibrium of strain energy. The lower-bound of limit-loads of frame structures are analyzed and the numerical example demonstrates the flexibility,accuracy and effciency of the proposed method.Lufeng Yang Bo Yu Yongping Qiao 2009Acta Mechanica Solida Sinica2009,22,2:20
19Studies on mechanism of Sialy Lewis-X antigen in liver metastases of human colorectal carcinoma显示文摘INTRODUCTIONSialyl Lewis-X antigen ,correlated with carcinoma, is a group of carbohydrate antigen containing oligosaccharide expressed of embryonic tisue and glycoproteins on cell surface of embryonic tissue[1].The SLeX antigen located on cell surface is synthesized principally by two enzymes ,al ,3fucosyltransfrease and a2, 3sialyctransferase.In adults ,SLeX antigen is expressed principally on the surfaces of granulocytic cells and some tumor cells .Xiao Wei Li~1 Yan Qing Ding~1 Jun Jie Cai~1 Shao Qing Yang~2 Lian Bing An~3 Dong Fang Qiao~3 ~1Department of Pathology,Nanfang Hospital of the First Military Medical University,Guangzhou 510515,Guangdong Province,China ~2The Northern Hospital of PLA,Shenyang 110015,Liaoning Province,China ~3Department of Electronmicroscopy,First Military Medical University,Guangzhou 510515,Gangdong Province,ChinaDr.Xiao Wei Li graduated from the First Military Medical University with a MM degree in 1999.Physician in Charge of pathology,having 6 papers published. 2001World Journal of Gastroenterology2001,7,3:19
20A randomized comparative study of using enoxaparin instead of unfractionated heparin in the intervention treatment of coronary heart disease显示文摘Background Low molecular weight heparin (LMWH) was more effective than unfractionated heparin (UFH) in treating acute coronary syndrome (ACS). However, it remains uncertain whether LMWH can be used in patients undergoing percutaneous coronary intervention (PCI) instead of UFH. This study aimed to evaluate the efficacy and safety of using enoxaparin instead of UFH in the intervention treatment of patients with coronary heart disease (CHD) Methods From October 2003 to Febuary 2005, 966 patients with CHD were enrolled into this study. Among 966 patients, 455 patients received the PCI, including 283 patients with Non-ST segment elevation ACS (NSTEACS), 511 patients did not received PCI due to mild, moderate lesions or were suitable for coronary artery bypass graft (CABG). The 966 patients were randomized to enoxaparin group (484 patients) and UFH group (482 patients). Patients in the enoxaparin group were given enoxaparin at least twice subcutaneously (1 mg/kg,q12 h) before catheterization. Plasma anti-Xa activity was determined 1-8 hours after the last dose of enoxaparin was determined. The catheterization was performed within 8 hours after the last dose of enoxaparin. The sheath was removed immediately after the procedure. Patients in the UFH group were given UFH 25 mg intravenously before coronary angiography. Additional 65 mg was given intravenously if PCI was to be performed. The sheath was removed 4 hours after the procedure. Results A total of 227 patients in the enoxaparin group and 228 patients in the UFH group received PCI. In the enoxaparin group,one patient developed acute thrombosis during PCI and resulted in acute myocardial infarction (AMI), no acute or subacute thrombosis was found during hospitalization. In the UFH group, no acute or subacute thrombosis occurred during PCI procedure and hospitalization. Therefore, the incidence of major adverse cardiovascular events (MACEs) during the hospitalization was 0.44% in the enoxaparin group and 0 in the UFH group. In the enoxaparin group, the sheath was removed immediately after the procedure and 8 patients had hematoma on the puncture site. In the UFH group, the sheath was removed 4 hours after the procedure and 20 cases had hematoma on the puncture site. The incidence of hematoma on the puncture site was significantly higher in the UFH group than that in the enoxaparin group (P<0.05). Anti-Xa activity was determined in 174 patients in LMWH group. The mean anti-Xa activity was (0.87±0.23) U/ml, and 94.8% of them had anti-Xa activity >0.5 U/ml and 6.9% of the patient >1.2 U/ml. There was no death and AMI occurred in enoxaparin group, but one patient had AMI caused by subacute thrombosis in UFH group during 30-day follow-up. MACE rate at 30-day follow-up was 0 in enoxaparin group and 0.43% in UFH group. Conclusions The results of the study suggest that it is safe and efficient to give enoxaparin at least twice beforethe PCI procedure, and the sheath can be removed immediately after PCI. For NSTEACS patient who has received enoxaparin more than twice during the hospitalization can undergo PCI directly and no UFH is necessary before or during PCI.CHEN Ji-lin CHEN Jue QIAO Shu-bin GUO Yuan-lin WU Yong-jian DAI Jun YUAN Jin-qing QIN Xue-wen YANG Yue-jin GAO Run-lin 2006Chinese Medical Journal2006,,5:19
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