维普中文期刊产品整合服务
1164篇 您的检索式:作者名="Rong Xu"
    题名 作者 年代 出处 被引量
1The Global Boundary Stratotype Section and Point (GSSP) for the base of the Hirnantian Stage (the uppermost of the Ordovician System)显示文摘Xu Chen Jiayu Rong Junxuan Fan Renbin Zhan Charles E. Mitchell David A. T. Harper Michael J. Melchin Ping'an Peng Stan C. Finney Xiaofeng Wang 2006Episodes2006,29,3:61
2Inhibitory effect of IGF-Ⅱ antisense RNA on malignant phenotype of hepatocellular carcinoma显示文摘INIRODUCTIONAccording to the therapeutic effect and strategy ofantisense RNA for hepatoccllular carcinoma(HCC),we have specifically synthesized partialcDNA of human insulin-like growth factor Ⅱ(IGF-Ⅱ)and constructed IGF-Ⅱ cDNA antisenseeukaryotic expression vector.The constructedvector was introduced into hepatoma cell lineSMMC-7721 to block the intrinsic IGF-Ⅱexpression.The biological behavior changes ofhepatoma cells were observed.All theseDong Hua Yang Ming Qing Zhang Jiang Du Chong Xu Oiao Ming Liang Ji Fang Mao Han Rong Qin Zi Rong Fan Department of Gastroenterology,Zhujiang Hospital,the First Military Medical University,Guangzhou 510282,China Laboratory of Molecular Biology,Zhujiang Hospital,the First Military Medical University,Guangzhou,China Departrnent of Biochemistry,the Second Military Medical University,Shanghai,China 2000World Journal of Gastroenterology2000,6,2:54
3Effects of AT1 receptor antagonist,Iosartan,on rat hepatic fibrosis induced by CCl_4显示文摘AIM To investigate effect of losartan,an AT1receptor antagonist,on hepatic fibrosis induced byCCl;and to determine whether or not AT1receptors are expressed on hepatic stellate cells,METHODS AND RESULTS Fifty male Sprague-Dawley rats,weighing(180±20)g,wererandomized into five groups(control group,modelgroup,and three losartan treated groups),inwhich all rats were given the subcutaneousinjection of 40% CCl4(every 3 days for 6 weeks)except for rats of control group.Rats of losartan-treated groups were treated with losartan(20 mg/kg,10 mg/kg,5 mg/kg,daily gavage),After 6weeks liver tissue and serum samples of all ratswere examined.Serum hyaluronic acid(HA),procollagen typeⅢ(PCⅢ)were detected byradioimmunoassays,van Giesion collagen stainingwas used to evaluate the extracellular matrix of ratswith liver fibrosis.The expression of AT1receptors,transforming growth factor-beta(TGF-β),and alpha-smooth muscle actin(a-SMA)inliver tissue were determined byimmunohistochemical techniques.Compared withmodel group,serum ALT and AST of losartan-treated groups were significantly reduced(t=4.20,P<0.01 and t=4.57,P<0.01).Serum HAand PCⅢalso had significant differences(t=3.53,P<0.01 and t=2.20,P<0.05).Thedegree of fibrosis was improved by losartan and correlated with the expressions of AT1 receptors,TGF-β,and α-SMA in liver tissue.CONCLUSION AT1 receptor antagonist,losartan,could limit the progression of the hepatic fibrosisinduced by CCl4.The mechanism may be related tothe decrease in the expression of AT1 receptorsand TGF-β,ameliorating the injury of hepatocytes;activation of local renin-angiotensin system mightrelate to hepatic fibrosis;and during progressionof fibrosis,activated hepatic stellate cells mightexpress AT1 receptors.Hong Shan Wei Ding Guo Li Han Ming Lu Yu Tao Zhan Zhi Rong Wang Xin Huang Jing Zhang Ji Lin Cheng Qin Fang Xu Department of Gastroenterology,Xinhua Hospital,Shanghai Second Medical University,Shanghai 200092,China 2000World Journal of Gastroenterology2000,6,4:42
4Enhanced secondary pollution offset reduction of primary emissions during COVID-19 lockdown in China显示文摘To control the spread of the 2019 novel coronavirus(COVID-19),China imposed nationwide restrictions on the movement of its population(lockdown)after the Chinese New Year of 2020,leading to large reductions in economic activities and associated emissions.Despite such large decreases in primary pollution,there were nonetheless several periods of heavy haze pollution in eastern China,raising questions about the well-established relationship between human activities and air quality.Here,using comprehensive measurements and modeling,we show that the haze during the COVID lockdown was driven by enhancements of secondary pollution.In particular,large decreases in NOx emissions from transportation increased ozone and nighttime NO_(3)radical formation,and these increases in atmospheric oxidizing capacity in turn facilitated the formation of secondary particulate matter.Our results,afforded by the tragic natural experiment of the COVID-19 pandemic,indicate that haze mitigation depends upon a coordinated and balanced strategy for controlling multiple pollutants.Xin Huang Aijun Ding Jian Gao Bo Zheng Derong Zhou Ximeng Qi Rong Tang Jiaping Wang Chuanhua Ren Wei Nie Xuguang Chi Zheng Xu Liangduo Chen Yuanyuan Li Fei Che Nini Pang Haikun Wang Dan Tong Wei Qin Wei Cheng Weijing Liu Qingyan Fu Baoxian Liu Fahe Chai Steven JDavis Qiang Zhang Kebin He 2021National Science Review2021,8,2:47
5Expansion of the Cathaysian Oldland through the Ordovician-Silurian transition:Emerging evidence and possible dynamics显示文摘Located northwest of the Jiangshan-Shaoxing Fault Zone,western and northwestern Zhejiang and northeastern Jiangxi provinces experienced major changes in bio-and litho-facies and paleogeography through the Ordovician-Silurian transition (late Katian,Hirnantian,and early Rhuddanian),as manifested by stratigraphic,paleontologic and synecologic records.Three geographic units under consideration are South,Central,and North areas.The western margin of the South area was occupied by the Huaiyu Mountains,whereas the other two parts were covered by the Zhe-Gan Sea during late Katian (Late Ordovician) time.In the early stage of the Changwu Formation deposition (late Katian),the sea was deepening northeastward,but with shallower conditions in the southwest and deeper conditions in the northeast.During mid to late stages of Changwu Formation deposition (latest Katian),the sea became much shallower and the sea bottom was uplifted substantially,which occurred somewhat prior to the global trend.During the Hirnantian (latest Ordovician) and early Rhuddanian (earliest Silurian),the study region became a shallow bay under expansion of the Cathaysian Oldland.There occurred a major drop of sea level and great changes in benthic biota with the occurrence of many new immigrants through the Ordovician-Silurian transition,which are closely related to a unique regional orogeny.The Yangtze and Cathaysian blocks may have amalgamated within the South China Paleoplate during this interval to cause the continuous uplifting and northwestward expansion of the Cathaysian Oldland.RONG JiaYu ZHAN RenBin XU HongGen HUANG Bing YU GuoHua 2010Science China Earth Sciences2010,53,1:37
6Does Helicobacter pylori infection play a role in iron deficiency anemia? A meta-analysis显示文摘AIM:To perform a meta-analysis of observational studies and randomized controlled trials(RCTs)on the association between Helicobacter pylori(H.pylori)and iron deficiency anemia(IDA).METHODS:A defined search strategy was used to search Medline,Embase,the Cochrane Library,Clinical Trials,Cochrane Central Register of Controlled Trials,Premedline and Healthstar.Odds ratio(OR)was used to evaluate observational epidemiology studies,and weighted mean difference(WMD)was used to demonstrate the difference between control and intervention groups.RESULTS:Fifteen observational studies and 5 RCTs were identified and used for calculation.The pooled OR for observational studies was 2.22(95%CI:1.52-3.24,P<0.0001).The WMD for hemoglobin(HB) was 4.06 g/L(95%CI:-2.57-10.69,P=0.01),and the WMD for serum ferritin(SF)was 9.47μg/L(95%CI:-0.50-19.43,P<0.0001).Results were heterogeneous for all comparisons.CONCLUSION:This meta-analysis on observational studies suggests an association between H.pylori and IDA.In RCTs,eradication of H.pylori can improve HB and SF levels but not significantly.Qu, Xin-Hua Huang, Xiao-Lu Xiong, Ping Zhu, Cui-Ying Huang, You-Liang Lu, Lun-Gen Sun, Xu Rong, Lan Zhong, Liang Sun, Da-Yu Lin, Hai Cai, Ming-Ci Chen, Zhi-Wei Hu, Bing Wu, Lian-Ming Jiang, Yi-Bin Yan, Wei-Li 2010World Journal of Gastroenterology2010,16,7:34
7Volumetric-modulated arc therapy vs c-IMRT in esophageal cancer:A treatment planning comparison显示文摘AIM:To compare the volumetric-modulated arc therapy AT plans ith conventional sliding indo intensity-modulated radiotherapy c-I RT plans in esophageal cancer EC . METHODS:Tenty patients ith EC ere selected, including 5 cases located in the cervical, the upper, the middle and the lo er thorax, respectively. Five plans ere generated ith the eclipse planning system:three using c-IMRT with 5 fields (5F), 7 fields (7F) and 9 fields (9F), and two using VMAT with a single arc 1A and double arcs 2A . The treatment plans ere designed to deliver a dose of 60 Gy to the plan-ning target volume Tith the same constrains in a 2.0 Gy daily fraction, 5 d a eek. lans ere normalized to 95% of the T that received 100% of the prescribed dose. We examined the dose-volume histogram parameters of T and the organs at risk OAR such as lungs, spinal cord and heart. onitor units U and normal tissue complication probability NTC of OAR ere also reported. RESULTS:Both c-I RT and AT plans resulted in abundant dose coverage of T for EC of different locations. The dose conformity to T as improved as the number of field in c-IMRT or rotating arc in VMAT as increased. The doses to T and OAR in AT plans ere not statistically different in comparison ith c-I RT plans, ith the follo ing exceptions:in cervical and upper thoracic EC, the conformity index CI as higher in VMAT (1A 0.78 and 2A 0.8) than in c-IMRT (5F 0.62, 7F 0.66 and 9F 0.73) and homogeneity was slightly better in c-IMRT (7F 1.09 and 9F 1.07) than in VMAT (1A 1.1 and 2A 1.09). Lung V30 was lower in VMAT (1A 12.52 and 2A 12.29) than in c-IMRT (7F 14.35 and 9F 14.81). The humeral head doses were significantly increased in AT as against c-I RT. In the middle and lower thoracic EC, CI in VMAT (1A 0.76 and 2A 0.74) was higher than in c-IMRT (5F 0.63 Gy and 7F 0.67 Gy), and homogeneity was almost similar bet een AT and c-I RT. 20 2A 21.49 Gy vs 7F 24.59 Gy and 9F 24.16 Gy) and V30 (2A 9.73 Gy vs 5F 12.61 Gy, 7F 11.5 Gy and 9F 11.37 Gy) of lungs in AT ere lo er than in c-I RT, but lo doses to lungs (V5 and V10) were increased. V30 (1A 48.12 Gy vs 5F 59.2 Gy, 7F 58.59 Gy and 9F 57.2 Gy), V40 and 50 of heart in AT as lo er than in c-I RT. Us in AT plans ere significantly reduced in comparison ith c-I RT, maximum doses to the spinal cord and mean doses of lungs ere similar bet een the t o techniques. NTC of spinal cord as 0 for all cases. NTC of lungs and heart in AT ere lo er than inc-I RT. The advantage of AT plan as enhanced by doubling the arc. CONCLUSION:Compared ith c-I RT, AT, especially the 2A, slightly improves the OAR dose sparing, such as lungs and heart, and reduces NTC and U ith a better T coverage.Li Yin Hao Wu Jian Gong Jian-Hao Geng Fan Jiang An-Hui Shi Rong Yu Yong-Heng Li Shu-Kui Han Bo Xu Guang-Ying Zhu 2012World Journal of Gastroenterology2012,18,37:34
8Development and potential of a biomimetic chitosan/type Ⅱ collagen scaffold for cartilage tissue engineering显示文摘Background Damaged articular cartilage has very limited capacity for spontaneous healing. Tissueengineering provides a newhope for functional cartilage repair.Creation of an appropriate cell carrier is one ofthe critical steps for successful tissue engineering.With the supposition thata biomimetic constructmightpromiseto generate better effects, we developed a novel composite scaffold and investigated its potential for cartilagetissue engineering.Methods Chitosan of88% deacetylation was prepared via a modified base reaction procedure.Afreeze-dryingprocess was employed to fabricate a three-dimensional composite scaffold consisting of chitosan and typeⅡcollagen. The scaffold was treated with 1-ethyl-3-( 3-dimethylaminopropyl ) carbodiimide and N-hydroxysuccinimide.Ultrastructure and tensile strength of the matrix were carried out to assess its physico-chemical properties.After subcutaneous implantation in rabbits, itsin vivobiocompatibility and degradability ofthe scaffold were determined.Its capacity to sustain chondrocyte growth and biosynthesis was evaluated throughcell-scaffold co-culturein vitro.Results The fabricated composite matrix was porous and sponge-like with interconnected pores measuring from100 -250μm in diameter.After cross-linking, the scaffold displayed enhanced tensile strength.Subcutaneousimplantation results indicated the composite matrix was biocompatible and biodegradable.In introcell-scaffoldculture showed the scaffold sustained chondrocyte proliferation and differentiation, and maintained the sphericchondrocytic phenotype.As indicated by immunohistochemical staining, the chondrocytes synthesized typeⅡcollagen.Conclusions Chitosan and typeⅡ collagen can be well blended and developed into a porous 3-D biomimeticmatrix.Results of physico-chemical and biological tests suggest the composite matrix satisfies the constraintsspecified for a tissue-engineered construct and may be used as a chondrocyte carrier for cartilage tissueengineering.SHI De-hai CAI Dao-zhang ZHOU Chang-ren RONG Li-min WANG Kun XU Yi-chun 2005Chinese Medical Journal2005,,17:29
9Extracellular heat-shock protein 70 aggravates cerulein-induced pancreatitis through toll-like receptor-4 in mice显示文摘在受不了尖锐胰腺炎的病人,的背景致病完全没被理解,并且在 vitro 的几最近的研究建议热吃惊蛋白质可能在房间发信号起一个重要作用。在胰腺炎调查细胞外的热吃惊蛋白质 70 的可能的角色( Hsp70 ),像使用费的 receptor-4 ( TLR4 )缺乏、野类型的老鼠在 导致cerulein 的胰腺炎( CIP )的功课期间与外长的 Hsp70 被管理 .Methods 尖锐胰腺炎被 cerulein 的 5 intraperitoneal 注射导致在时时间隔,然后通过尾的静脉与 recombinant 对待 Hsp70 在 cerulein 注射的开始以后的 4 个小时。随后,浆液淀粉酶和浆液 cytokines 层次被检测。胰的 Histologic 改变被评估。肿瘤坏死因素 alpha (TNF -- 一) 集中和 myeloperoxidase (军邮局) 在胰和肺的活动被分析。在胰腺的织物的原子因素 kappa B ( NF-KB )激活在 CIP 与 recombinant Hsp70 用一个敏感 RelA 连接酶的 immunosorbent assay.Results 处理被测量到野类型的老鼠在胰导致了发炎的重要恶化,浆液 cytokines 的提高的层次,肺的军邮局活动的起来规定和肺纸巾TNF-集中的增加。相反,有到TLR4缺乏的老鼠的 Hsp70 的处理在浆液 cytokines 层次上有小效果,胰腺的发炎,肺的军邮局活动和 TNF -- concentrations.Conclusions 结果建议细胞外的 HspTO 可能导致全身的煽动性的反应没有感染,在 vivo 和 TLR4 的症候群(先生) -Iike 反应可能在 CIP 的前进涉及煽动性的反应的 调停Hsp70 的激活。SONG Jun-min LIU Hong-xiang LI Yuan ZENG Yu-jian ZHOU Zong-guang LIU Hai-yi XU Bing WANG Ling ZHOU Bin WANG Rong 2008Chinese Medical Journal2008,,15:27
10The regulatory role of AT 1 receptor on activated HSCs in hepat,c fibrogenesis,effects of RAS inhibitors on hepatic fibrosis induced by CCl_4显示文摘AIM To assess the effect of ACE inhibitor andAng Ⅱ type Ⅰ(AT1)receptor antagonist inpreventing hepatic fibrosis caused by CCl4administration in rats;to investigate whether ornot there are expression of AT 1 receptors onhepatic stellate cells;and to observe the effectof Ang Ⅱ on proliferation and ECM synthesis ofcultured HSCs.METHODS Studies were conducted in maleSprague-Dawley rats.Except for thehepatofibrotic model group and the controlgroup,in three treated groups,either enalapril(5 mg/kg),or Iosartan(10 mg/kg),or enalapril+Iosartan were given to the fibrotic rats bydaily gavage,and saline vehicle was given tomodel and normal control rats.After 6 weeks,liver fibrosis was assessed directly by hepaticmorphometric analysis,which has beenconsidered the gold standard for thequantification of fibrosis.The expressions of AT1 receptors and(α-mooth muscle actin,α-SMA)in liver tissue or isolated hepatic stellate cells(HSCs)were detected by immunohistochemicaltechniques.The effect of Ang Ⅱ on HSCproliferation was determined by MTT method.Effect of Ang Ⅱ on collagen synthesis of HSCswas determined by 3H-proline incorporation.RESULTS Contrasted to the fibrosis in rats ofthe model group,groups of rats treated with either enalapril or Iosartan,or a combination oftwo drugs showed a limited expansion of theinterstitium(4.23±3.70 vs 11.22±4.79,P<0.05),but no difference was observedamong three treated groups(5.38±3.43,4.96±2.96,4.23±2.70,P>0.05).Expression of AT 1receptors was found in fibrotic interstitium offibrotic rats,whereas in normal control rats theywere limited to vasculature only to a very slightdegree.AT 1 receptors were also expressed onactivated HSCs in the culture.At concentrationsfrom 10-9to 10-5mol/L,Ang Ⅱ stimulated HSCproliferation in culture in a dose-dependentmanner.Increasing Ang Ⅱ concentrationsproduced corresponding increases in 3H-prolineincorporation.Differences among groups were significant.CONCLUSION Angiotensin-converting enzyme inhibitors and AT I blocker may slow the progression of hepatic fibrosis; activated HSCs express AT 1 receptors, and Ang Ⅱ can stimulate the proliferation and collagen synthesis of HSCs in a dose-dependent manner; and activation of RAS may be related to hepatic fibrogenesis induced by CCI4.Hong Shan Wei Han Ming Lu Ding Guo Li Yu Tao Zhan Zhi Rong Wang Xin Huang Ji Lin Cheng Qin Fang Xu Department of Gastroenterology,Xinhua Hospital,Shanghai Second Medical University,Shanghai 200092,China 2000World Journal of Gastroenterology2000,6,6:27
11Astragalus polysaccharide attenuates rat experimental colitis by inducing regulatory T cells in intestinal Peyer's patches显示文摘AIM: To explore probable mechanism underlying the therapeutic effect of Astragalus polysaccharide(APS) against experimental colitis.METHODS: Thirty-two Sprague-Dawley rats were randomly divided into four groups. Colitis was induced with 2, 4, 6-trinitrobenzene sulfonic acid(TNBS). The rats with colitis were treated with 400 mg/kg of APS for 7 d. The therapeutic effect was evaluated by colonic weight, weight index of the colon, colonic length, and macroscopic and histological scores. The levels of regulatory T(Treg) cells in Peyer's patches were measured by flow cytometry, and cytokines in colonic tissue homogenates were analyzed using enzyme-linked immunosorbent assay. The expression of related orphan receptor-gt(ROR-gt), IL-23 and STAT-5a was measured by Western blot.RESULTS: After 7-d treatment with APS, the weight index of the colon, colonic weight, macroscopical and histological scores were decreased, while the colonic length was increased compared with the model group. The expression of interleukin(IL)-2, IL-6, IL-17, IL-23 and ROR-gt in the colonic tissues was down-regulated, but Treg cells in Peyer's patches, TGF-β and STAT5 a in the colonic tissues were up-regulated.CONCLUSION: APS effectively ameliorates TNBSinduced experimental colitis in rats, probably through restoring the number of Treg cells, and inhibiting IL-17 levels in Peyer's patches.Hai-mei Zhao Yan Wang Xiao-Ying Huang min-fang Huang Rong Xu Hai-Yang Yue Bu-gao Zhou Hong-Yan Huang Qi-meng Sun Duan-Yong Liu 2016World Journal of Gastroenterology2016,22,11:28
12Salvianolic acid A attenuates ischemia reperfusion induced rat brain damage by protecting the blood brain barrier through MMP-9 inhibition and anti-inflammation显示文摘Salvianolic acid A(SAA) is a water-soluble component from the root of Salvia Miltiorrhiza Bge, a traditional Chinese medicine, which has been used for the treatment of cerebrovascular diseases for centuries. The present study aimed to determine the brain protective effects of SAA against cerebral ischemia reperfusion injury in rats, and to figure out whether SAA could protect the blood brain barrier(BBB) through matrix metallopeptidase 9(MMP-9) inhibition. A focal cerebral ischemia reperfusion model was induced by middle cerebral artery occlusion(MCAO) for 1.5-h followed by 24-h reperfusion. SAA was administered intravenously at doses of 5, 10, and 20 mg?kg–1. SAA significantly reduced the infarct volumes and neurological deficit scores. Immunohistochemical analyses showed that SAA treatments could also improve the morphology of neurons in hippocampus CA1 and CA3 regions and increase the number of neurons. Western blotting analyses showed that SAA downregulated the levels of MMP-9 and upregulated the levels of tissue inhibitor of metalloproteinase 1(TIMP-1) to attenuate BBB injury. SAA treatment significantly prevented MMP-9-induced degradation of ZO-1, claudin-5 and occludin proteins. SAA also prevented cerebral NF-κB p65 activation and reduced inflammation response. Our results suggested that SAA could be a promising agent to attenuate cerebral ischemia reperfusion injury through MMP-9 inhibition and anti-inflammation activities.ZHANG Wen SONG Jun-Ke ZHANG Xue ZHOU Qi-Meng HE Guo-Rong XU Xiao-Na Yan Rong ZHOU Wen-Xia DU Guan-Hua 2018Chinese Journal of Natural Medicines2018,16,3:25
13Granulocyte-macrophage colony-stimulating factor (GM-CSF) and T-cell responses: what we do and don't know显示文摘Granulocyte 巨噬细胞刺激殖民地的因素(GM-CSF ) 是一个重要造血的生长因素和有免疫力的调节的人。GM-CSF 也在各种各样的传播白血球的功能的活动有深刻效果。它被许多房间类型在收到有免疫力的刺激之上包括 T 房间,巨噬细胞, endothelial 房间和成纤维细胞生产。尽管 GM-CSF 局部地被生产,它能以一种 paracrine 方式行动到在主人防卫提高他们的功能的成员传播 neutrophils,单核白血球和淋巴细胞。最近的集中的调查为它增加树枝状的房间(DC ) 成熟和功能以及巨噬细胞活动的能力作为一个有免疫力的助手在 GM-CSF 的应用程序上被集中。在经历化疗的癌症病人对待嗜中性白血球减少症临床上被使用,在在治疗期间的爱滋病病人,并且在在骨髓移植以后的病人。有趣地, GM-CSF-deficient 老鼠的造血的系统看起来正常;最重要的变化在一些特定的 T 房间回答。尽管 GM-CSF 的分子的克隆用 T 房间的 cDNA 图书馆被执行, T 房间在激活以后生产 GM-CSF,是众所周知的,在 T 房间功能上有在由 T 房间和它的效果的生产的这 cytokine 的系统的调查的缺乏。在这篇文章,我们将在 T 房间主要集中于 GM-CSF 的免疫生物学。Yufang Shi Catherine H Liu Arthur I Roberts Jyoti Das Guangwu Xu Guangwen Ren Yingyu Zhang Liying Zhang Zeng Rong Yuan Hung Sheng William Tan Gobardhan Das Satish Devadas 2006Cell Research2006,16,2:22
14Secukinumab demonstrates high efficacy and a favorable safety profile over 52 weeks in Chinese patients with moderate to severe plaque psoriasis显示文摘Background:Psoriasis is a chronic inflammatory skin disease,affecting about 0.6%of the Chinese population.Many patients are not well controlled by conventional treatments,thus there is need for new treatment regimens.In this study,we assessed the efficacy and safety of secukinumab in Chinese patients with moderate to severe plaque psoriasis.Methods:This study was a 52-week,multicentre,randomized,double-blind,placebo-controlled,parallel-group,Phase 3 trial.A sub-population of study participants(≥18 years)of Chinese ethnicity were randomized to receive subcutaneous injections of 300 or 150 mg secukinumab,or placebo.The co-primary endpoints were psoriasis area severity index(PASI)75 and Investigator’s Global Assessment(IGA)0/1 at Week 12.Results:A total of 441 Chinese patients were enrolled in this study.Co-primary outcomes were achieved;300 and 150 mg secukinumab were superior to placebo as shown in the proportion of patients that achieved PASI 75(97.7%and 87.2%vs.3.7%,respectively;P<0.001),and IGA 0/1(82.3%and 69.7%vs.2.7%;P<0.001)at Week 12.Treatment efficacy was maintained until Week 52.There was no increase in overall adverse events with secukinumab relative to placebo throughout the 52-week period.Conclusion:Secukinumab is highly effective and well tolerated in Chinese patients with moderate to severe plaque psoriasis.Lin Cai Jian-Zhong Zhang Xu Yao Jun Gu Quan-Zhong Liu Min Zheng Shi-Fa Zhang Jin-Hua Xu Cheng-Xin Li Hao Cheng Qing Guo Wei-Li Pan Shen-Qiu Li Ruo-Yu Li Zai-Pei Guo Zhi-Qi Song Shan-Shan Li Xiu-Qin Dong Linda Wang Rong Fu Pascaline Regnault Pascal Charef Ratal Mazur Manmath Patekar 2020Chinese Medical Journal2020,,22:21
15Elevation of serum apelin-13 associated with proliferative diabetic retinopathy in type 2 diabetic patients显示文摘AIM: To compare apelin-13, a ligand of G-proteincoupled receptor which has been shown to be involved in retinal angiogenesis, and vascular endothelial growth factor(VEGF) serum levels in type 2 diabetes mellitus(T2DM) with or without retinopathy, and to investigate the relationship between the serum concentration of apelin-13 and diabetes retinopathy.METHODS: Sixty-nine patients with T2 DM were enrolled.Of the 69 patients, 16 had proliferative diabetic retinopathy(PDR group), 23 had non-PDR(NPDR group)and 30 had no retinopathy(T2DM group). Subjects' information, including demographics, medical history,and use of medications were recorded. Their serum samples were collected for measuring the levels of C-reactive protein(CRP), serum lipid and glycosylated hemoglobin. Apelin-13 and VEGF serum levels were measured by enzyme-linked immunosorbent assay.Kruskal-Wallis test and one-way ANOVA were used to compare the differences among these groups. Chi-square test was used to assess categorical variables.Correlations between variables were investigated by Spearman rho correlation test and stepwise regression analysis. All statistical analyses were performed through SPSS 17.0 software.RESULTS: Sex, age, body mass index(BMI), blood pressure, CRP, hemoglobin A1c(Hb A1c) have no significantly difference in the three groups. Serum level of apelin-13 was significantly elevated in PDR group as compared with T2 DM group(P =0.041). Differences of VEGF serum concentration in the three groups were statistically significant(P =0.007, P =0.007 and P <0.001,respectively). Spearman rho correlation test showed that serum apelin-13 was positively correlated with BMI,serum triglycerides, VEGF, but not with age, duration of diabetes, blood pressure, CRP, Hb A1 c and total-cholesterol. Stepwise regression analysis showed that BMI also significantly associated with serum apelin-13(P =0.002), while VEGF and serum triglycerides were irrelevant. CONCLUSION: This study elucidated a positive association of apelin-13 serum level with PDR, but not with VEGF. Apelin-13 may influence the promotion of PDR but unrelated with VEGF.Jun-Hui Du Xia Li Rong Li Lin Xu Ran-Ran Ma Song-Fang Liu Zhong Zhang Hong-Zhi Sun 2014International Journal of Ophthalmology(English edition)2014,7,6:21
16Optimization of stratification scheme for a fishery-independent survey with multiple objectives显示文摘Fishery-independent surveys are often used for collecting high quality biological and ecological data to support fisheries management. A careful optimization of fishery-independent survey design is necessary to improve the precision of survey estimates with cost-effective sampling efforts. We developed a simulation approach to evaluate and optimize the stratification scheme for a fishery-independent survey with multiple goals including estimation of abundance indices of individual species and species diversity indices. We compared the performances of the sampling designs with different stratification schemes for different goals over different months. Gains in precision of survey estimates from the stratification schemes were acquired compared to simple random sampling design for most indices. The stratification scheme with five strata performed the best. This study showed that the loss of precision of survey estimates due to the reduction of sampling efforts could be compensated by improved stratification schemes, which would reduce the cost and negative impacts of survey trawling on those species with low abundance in the fishery-independent survey. This study also suggests that optimization of a survey design differed with different survey objectives. A post-survey analysis can improve the stratification scheme of fishery-independent survey designs.XU Binduo REN Yiping CHEN Yong XUE Ying ZHANG Chongliang WAN Rong 2015Acta Oceanologica Sinica2015,34,12:21
17Renoprotective effect of alprostadil in combination with statins in patients with mild to moderate renal failure undergoing coronary angiography显示文摘LIU Wei-jing ZHANG Bu-chun GUO Rong WEI Yi-dong LI Wei-ming XU Ya-wei 2013Chinese Medical Journal2013,,18:20
18Curative effect of heat-sensitive moxibustion on chronic persistent asthma: a multicenter randomized controlled trial显示文摘OBJECTIVE:To compare the curative effects of heat-sensitive moxibustion with conventional drugs on chronic persistent asthma and seek a valuable therapy to replaceWestern Medicine.METHODS:The participants in this multi-center,randomized,and controlled study were randomly divided into two groups:group A(n=144),treated with heat-sensitive moxibustion(50 sessions)and group B(n=144),treated with Seretide(salmeterol50μg/fluticasone 250μg,twice a day).The scores of asthma control test(ACT),forced expiratory volume in 1 second(FEV1),peak expiratory flow(PEF),and attack frequency were measured after 15,30,60,and 90 days of treatment.Patients followed up3 and 6 months after treatment.RESULTS:There was a significant difference(P=0.0002)in the ACT score and lung function between the two groups after 3 months of treatment and(P=0.000 03)during the follow-up visits.In addition,heat-sensitive moxibustion reduced attack frequency in the period from inclusion to the6-month follow-up visit.CONCLUSION:This study shows that heat-sensitive moxibustion may have a comparable curative effect toSeretide(salmeterol/fluticasone)on asthma.Rixin Chen Mingren Chen Jun Xiong Zhenhai Chi B0 Zhang Ning Tian Zhenhua Xu Tangfa Zhang Wanyao Li Wei Zhang Xiaofeng Rong Zhen Wang Gang Sun Baohe Ge Guoxiong Yu Nanchang Song 2013Journal of Traditional Chinese Medicine2013,33,5:20
19Diamonds and Other Exotic Minerals Recovered from Peridotites of the Dangqiong Ophiolite, Western Yarlung-Zangbo Suture Zone, Tibet显示文摘Various combinations of diamond, moissanite, zircon, quartz, corundum, rutile, titanite, almandine garnet, kyanite, and andalusite have been recovered from the Dangqiong peridotites. More than 80 grains of diamond have been recovered, most of which are pale yellow to reddish-orange to colorless. The grains are all 100-200 μm in size and mostly anhedral, but with a range of morphologies including elongated, octahedral and subhedral varieties. Their identification was confirmed by a characteristic shift in the Raman spectra between 1325 cm^(-1) and 1333 cm^(-1), mostly at 1331.51 cm^(-1) or 1326.96 cm^(-1). Integration of the mineralogical, petrological and geochemical data for the Dongqiong peridotites suggests a multi-stage formation for this body and similar ophiolites in the Yarlung-Zangbo suture zone. Chromian spinel grains and perhaps small bodies of chromitite crystallized at various depths in the upper mantle, and encapsulated the UHP, highly reduced and crustal minerals. Some oceanic crustal slabs containing the chromian spinel and their inclusion were later trapped in suprasubduction zones(SSZ), where they were modified by island arc tholeiitic and boninitic magmas, thus changing the chromian spinel compositions and depositing chromitite ores in melt channels.XIONG Fahui YANG Jingsui ROBINSON Paul T. XU Xiangzhen BA Dengzhu LI Yuan ZHANG Zhongming RONG He 2016Acta Geologica Sinica(English Edition)2016,90,2:20
20Microwave synthesis of Li_2FeSiO_4 cathode materials for lithium-ion batteries显示文摘A novel synthetic method of microwave processing to prepare Li_2FeSiO_4 cathode materials is adopted.The Li_2FeSiO_4 cathode material is prepared by mechanical ball-milling and subsequent microwave processing.Olivin-type Li_2FeSiO_4 sample with uniform and fine particle sizes is successfully and fast synthesized by microwave heating at 700℃in 12 min.And the obtained Li_2FeSiO_4 materials show better electrochemical performance and microstructure than those of Li_2FeSiO_4 sample by the conventional solidstate reaction.Zhong Dong Peng Yan Bing Cao Guo Rong Hu Ke Du Xu Guang Gao Zheng Wei Xiao 2009Chinese Chemical Letters2009,20,8:20
返回顶部 每页显示:
共59页 首页 上一页 第1页 下一页 末页 /59 跳转

网站首页 | 关于我们 | 联系我们 | 产品服务 | 客服中心 | 广告服务 | 版权声明 | 网站联盟 | 友情链接 | 售卡网点

版权所有© 渝B2-20050021-1 渝公网安备 50019002500403号 违法和不良信息举报中心

互联网出版许可证 新出网证(渝)字10号 全国400电话 - 免长途话费