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1760篇 您的检索式:作者名="Tu Wang"
    题名 作者 年代 出处 被引量
1慢性炎症、肿瘤微环境与癌变显示文摘某些肿瘤发生前或发生时常有慢性炎症。抗炎疗法在癌症的预防及治疗中也显现出一定的疗效。创伤愈合演变为癌症前兆的具体机理已成为当前研究的热点。已有研究证实,炎症介质、炎症相关基因多态性与癌变之间存在病原学关系。潜在的炎症过程可通过不同的机理影响肿瘤间室与癌症分期,Tamas A. Gonda Shuiping Tu Timothy C. Wang 丁燕(翻译) 南娟(翻译) 刘谦(校对) 2009中国肺癌杂志2009,12,9:55
2Combined Pollution and Pollution Index of Heavy Metals in Red Soil显示文摘A field experiment was conducted to study the effects of Pb, Cd, Cu, Zn and As coexisting in red soilon growth of rice (Oryza sativa L.), mung bean (Vigna rabiata (Linn.) Wilczek), alfalfa (Medicago sativaL.), slash pine (Pinus elliottii Engelm.) and aspen (Populus L.). Results showed that rice, mung bean andalfalfa were significantly innuenced by combined pollution of the heavy metals. The contents of Pb, cd andAs in rice grains greatly exceeded the National Standards for Food Hygiene of China. Heavy metals at ahigh concentration seriously retarded growth of mung bean and alfalfa, but not so obviously with slash pineand aspen. The composite index is suggested for evaluating the relativity of combined pollution witll heavymetals in soil.CHEN HUAIMAN ZHENG CHUNRONG WANG SHENQIANG and TU CONG(Institute of Soil Science, the Chinese Academy of Sciences, P.O. Box 821, Naroing 210008 China) 2000Pedosphere2000,10,2:56
3Screening for main components associated with the idiosyncratic hepatotoxicity of a tonic herb, Polygonum multiflorum显示文摘典型药用的植物的主要成分,蓼 multiflorum (用汉语的 Heshouwu ) ,那导致特质的肝损害仍然保持不清楚。我们的以前的工作证明了有 lipopolysaccharide (LPS ) 的无毒的剂量和 Heshouwu 的治疗学的剂量的 cotreatment 能在老鼠导致肝损害,而独唱治疗不能导致看得见的损害。在现在的工作,用成分大美人和敲门在里面策略,我们发现 Heshouwu 的乙醇醋酸盐(EA ) 摘录在对待 LPS 的老鼠显示了可比较的特质的 hepatotoxicity 到整个摘录。结果显示血浆丙氨酸 aminotransferase, aspartate aminotransferase,和肝 histologic 的重要举起变化,而另外的分开的部分没能导致肝损害。有另外的分开的部分的 EA 摘录的混合在对待 LPS 的老鼠导致了可比较的特质的 hepatotoxicity 到整个摘录。化学分析进一步揭示了那 2,3,5,4-tetrahydroxy trans-stilbene-2-O -- 配糖物(trans-SG ) 和它的 cis 异构体是在 EA 的二主要混合物摘录。而且,孤立的 cis- ,并且不它的 trans 异构体,显示的可比较的特质的 hepatotoxicity 到在对待 LPS 的老鼠的 EA 摘录。cis-SG 的更高的内容从与收集的将军相比与 Heshouwu 联系的实际的肝沉醉病人在 Heshouwu 白酒或准备被检测样品。另外,血浆 metabolomics 分析证明 cis-SG-disturbing 充实显著地不同于的小径在对待 LPS 的老鼠的 trans-SG。所有这些结果建议 cis-SG 仔细与 Heshouwu 的特质的 hepatotoxicity 被联系。认为 trans-SG 的 cis-trans 异构化被紫外光或日光调停,我们的调查结果为在药发现控制 photoisomerization 并且为 Heshouwu 和芪相关的药的临床的使用用作参考。Chunyu Li Ming Niu Zhaofang Bai Congen Zhang Yanling Zhao Ruiyu Li Can Tu Huifang Li Jing Jing Yakun Meng Zhijie Ma Wuwen Feng Jinfa Tang Yun Zhu Jinjie Li Xiaoya Shang Zhengsheng Zou Xiaohe Xiao Jiabo Wang 2017Frontiers of Medicine2017,11,2:41
4Definition, theory, methods, and applications of the safe and efficient simultaneous extraction of coal and gas显示文摘Yuanping Cheng Liang Wang Hongyong Liu Shengli Kong Jintuo Zhu Qingyi Tu 2015International Journal of Coal Science & Technology2015,2,1:36
5Alpine wetlands in the Lhasa River Basin, China显示文摘拉萨河盆是西藏的高原上的高山的沼泽地的典型分发区域之一。为监视,保护和利用得到背景的更好的理解和高山的沼泽地的特征是很重要的。在盆的沼泽地建设和分发包括域调查数据, CBERS 遥感数据和 3S 技术提供的另外的题目的数据基于多来源数据被分析。结果是(1 ) 沼泽地的全部的区域是 209,322.26 hm2,为盆的 6.37% 全部的陆地区域的财务。沼泽地被自然沼泽地主要统治,与仅仅占据 1.09% 沼泽地区域的人工的沼泽地;沼泽地沼泽地是自然沼泽地的主要部分,由 Kobresia littledalei 统治了在河来源区域分布式的沼泽的草地并且 Chali, Damshung 和 Medro 在上游 Gongkar 县。在不同的县的沼泽地的比率和类型显著地不同,它在 Chali 和 Damshung 县(为 62% 全部的沼泽地区域的财务) 是广泛地分布式的。(2 ) 沼泽地的集中的垂直分发在 36005100 m 的举起。沼泽地广泛地从河来源在整个 Yarlung Zangbo 河山谷被散布到河嘴进 Yarlung Zangbo 河。沼泽地沼泽地在来源区域是主导的并且河在上游与湖的马赛克分发, Kobresia littledalei 和 Carex moorcroftii 沼泽的草地,灌木状的沼泽地和河;至于中间下面流,主要类型是河沼泽地并且充满沼泽地。分发在河,小而淡的 Kobresia 和 Carex moorcroftii 的一个马赛克模式沼泽的草地, Phragmites 南极光和辅助的草沼泽地,充满的沼泽地和人工的沼泽地。ZHANG Yili WANG Chunlian BAI Wanqi WANG Zhaofeng TU Yanli YANGJAEN Dor Gka 2010Journal of Geographical Sciences2010,20,3:32
6Semi-Supervised Learning with Generative Adversarial Networks on Digital Signal Modulation Classification显示文摘Deep Learning(DL)is such a powerful tool that we have seen tremendous success in areas such as Computer Vision,Speech Recognition,and Natural Language Processing.Since Automated Modulation Classification(AMC)is an important part in Cognitive Radio Networks,we try to explore its potential in solving signal modulation recognition problem.It cannot be overlooked that DL model is a complex model,thus making them prone to over-fitting.DL model requires many training data to combat with over-fitting,but adding high quality labels to training data manually is not always cheap and accessible,especially in real-time system,which may counter unprecedented data in dataset.Semi-supervised Learning is a way to exploit unlabeled data effectively to reduce over-fitting in DL.In this paper,we extend Generative Adversarial Networks(GANs)to the semi-supervised learning will show it is a method can be used to create a more dataefficient classifier.Ya Tu Yun Lin Jin Wang Jeong-Uk Kim 2018Computers, Materials & Continua2018,,5:28
7Digestive tract reconstruction using isoperistaltic jejunumlater-cut overlap method after totally laparoscopic total gastrectomy for gastric cancer: Short-term outcomes and impact on quality of life显示文摘AIM To evaluate the short-term outcomes and quality of life(Qo L) in gastric cancer patients undergoing digestive tract construction using the isoperistaltic jejunum-latercut overlap method(IJOM) after totally laparoscopic total gastrectomy(TLTG).METHODS A total of 507 patients who underwent laparoscopic gastrectomy(D2) from January 2014 to March 2016 were originally included in the study. The patients were divided into two groups to undergo digestive tract construction using either IJOM after TLTG(group T, n = 51) or Roux-en-Y anastomosis after laparoscopic-assisted total gastrectomy(LATG)(group A, n = 456). The short-term outcomes and Qo L were compared between the two groups after 1:2 propensity-score matching(PSM). We used a questionnaire to assess Qo L.RESULTS Before matching, age, sex, tumor size, tumor location, preoperative albumin and blood loss were significantly different between the two groups(P < 0.05). After PSM, the patients were well balanced in terms of their clinicopathological characteristics, although both blood loss and in-hospital postoperative days in group T were significantly lower than those in group A(P < 0.05). After matching, group T reported better Qo L in the domains of pain and dysphagia. Among the items evaluating pain and dysphagia, group T tended to report better Qo L('Have you felt pain' and 'Have you had difficulty eating solid food')(P < 0.05).CONCLUSION The IJOM for digestive tract reconstruction after TLTG is associated with reduced blood loss and less pain and dysphagia, thus improving Qo L after laparoscopic gastrectomy.Ze-Ning Huang Chang-Ming Huang Chao-Hui Zheng Ping Li Jian-Wei Xie Jia-Bin Wang Jian-Xian Lin Jun Lu Qi-Yue Chen Long-Long Cao Mi Lin Ru-Hong Tu Ju-Li Lin 2017World Journal of Gastroenterology2017,23,39:27
8Effect of oxidization on enrichment behavior of TiO_2 in titanium-bearing slag显示文摘Due to the dispersed distribution of the titanium component in various mineral phases and very fine grain size, it is difficult to recover the titanium component from the slag. In order to utilize titanium resources, selective enriching and selective growing of the titanium component from the molten slag is expected. In this paper, the selection of the best tita- nium enrichment phase and the effect of oxidization on the enrichment of titanium by blowing air into the molten slag were studied. The results showed that through oxidizing the slag, the content of the perovskite phase increases while that of the other titanium-bearing mineral phases decreases until they disappear. Most titania resources were enriched into the perovskite phase and increase in size. The process of enrichment and growth is easily carried out.WANG Mingyu LI Liaosha ZHANG Li ZHANG Linnan TU Ganfeng SUI Zhitong 2006Rare Metals2006,25,2:23
9Characteristics of abnormal menstrual cycle and polycystic ovary syndrome in community and hospital populations显示文摘背景 Polycystic 卵巢症候群( PCOS )被认为是在在遗体 unclear.We 试图在社区和医院病人 populations.Methods 女人与 PCOS 分析反常月经周期和他们的协会的特征与的 PCOS 的病原学的一个反常月经周期的繁殖 age.The 参与的女人的最普通的内分泌的混乱在从 reproductiv 获得的北京和 506 个门诊病人的社区从 2111 个永久女居民识别的 PCOS 21 天;21-34 天;35-60 天;并且在每个组的 60 days.Women 用一张问询表被会见包括年龄估计因素,月经初潮的年龄,月经周期历史,相关家庭历史,并且修改了 score.All 女人收到了的 Ferriman-Gallwey ( mF-G ) transvaginal 超声扫描和为 0.05 的二尾巴的 P 价值在社区人口被认为 significant.Results 的内分泌的 evaluation.A 拿的有的 fasting 血样品,反常月经周期的流行是27.19%( 574/2111 ) PCOS 在的 .TheMA Yan-min LI Rong QIAO Jie ZHANG Xiao-wei WANG Shu-yu ZHANG Qiu-fang LI Li TU Bin-bin ZHANG Xue 2010Chinese Medical Journal2010,,16:22
10Differentiation of Human Bone Marrow Stromal Cells into Neural-Like Cells Induced by Sodium Ferulate in vitro显示文摘Human marrow stromal cells (hMSCs) are multipotential stem cells, capable of differentiating into bone, cartilage,fat and muscle. Several recent reports demonstrated that hMSCs have been also differentiated into neural cells.However, only a few reported inducers are applicable for clinical use. This work is to explore the effects of sodium ferulate (SF) on differentiation of hMSCs into neural cells in vitro. We found that hMSCs could be induced to the cells with typical neural morphology when cultured with SF. The cells express neural proteins, such as nestin,neuron-specific enolase (NSE) and glial fibrillary acidic protein (GFAP). About 30% of the hMSC-derived cells expressed nestin when cultured with SF for 3 h, but no expression was detected after 24 h. The percentages of positive cells for NSE or GFAP were about 67% and 39% separately at 6 h, and reached the plateau phage after treatment with SF for 3 days. The data suggest that SF can induce hMSCs to differentiate into neural-like cells in vitro.Yang Wang Zhifeng Deng Xianliang Lai Wei Tu 2005Cellular & Molecular Immunology2005,2,3:21
11Wet and dry deposition fluxes of heavy metals in Pearl River Delta Region(China):Characteristics,ecological risk assessment,and source apportionment显示文摘The atmospheric deposition of heavy metals poses serious risks to the ecological system and human health. To advance our knowledge of atmospheric dry/wet heavy metal deposition in the PRD region, monthly fluxes were examined based on soluble/insoluble fractions of five heavy metal elements(Cu, Pb, Cd, Cr and Zn) in samples collected from January 2014 to December 2015 at Guangzhou(urban) and Dinghushan(suburban) sites. The ratios of wet/dry deposition fluxes indicated that heavy metal deposition was governed by wet deposition rather than dry deposition in the PRD region. Affected by the shifting of the Asian monsoon, wet deposition fluxes exhibited significant seasonal variation between summer monsoon seasons(April to September) and winter monsoon seasons(October to February) in this region. Cd was classified as an extremely strong potential ecological risk based on solubility and the Hakanson ecological risk index. Source contributions to wet deposition were calculated by PMF, suggesting that dust, biomass burning, industries,vehicles, long-range transport and marine aerosol sources in Guangzhou, and Zn fertilizers,marine aerosol sources, agriculture, incense burning, biomass burning, vehicles and the ceramics industry in Dinghushan, were the potential sources of heavy metals.Lyumeng Ye Minjuan Huang Buqing Zhong Xuemei Wang Qiulan Tu Haoran Sun Chao Wang Luolin Wu Ming Chang 2018Journal of Environmental Sciences2018,30,8:20
12Infliximab monotherapy for Chinese patients with moderate to severe plaque psoriasis: a randomized, double-blind, placebo-controlled multicenter trial显示文摘YANG Hai-zhen WANG Ke JIN Hong-zhong GAO Tian-wen XIAO Sheng-xiang XU Jin-hua WANG Bao-xi ZHANG Fu-ren LI Chun-yang LIU Xiao-ming TU Cai-xia JI Su-zhen SHEN Yang ZHU Xue-jun 2012Chinese Medical Journal2012,,11:20
13Degradation of pyrene by immobilized microorganisms in saline-alkaline soil显示文摘Biodegradation of polycyclic aromatic hydrocarbons(PAHs) is very difficult in saline-alkaline soil due to the inhibition of microbial growth under saline-alkaline stress.The microorganisms that can most effectively degrade PAHs were screened by introducing microorganisms immobilized on farm byproducts and assessing the validity of the immobilizing technique for PAHs degradation in pyrene-contaminated saline-alkaline soil.Among the microorganisms examined,it was found that Mycobacterium sp.B2 is the best,and can degrade 82.2% and 83.2% of pyrene for free and immobilized cells after 30 days of incubation.The immobilization technique could increase the degradation of pyrene significantly,especially for fungi.The degradation of pyrene by the immobilized microorganisms Mucor sp.F2,fungal consortium MF and co-cultures of MB+MF was increased by 161.7%(P < 0.05),60.1%(P < 0.05) and 59.6%(P < 0.05) after 30 days,respectively,when compared with free F2,MF and MB+MF.Scanning electron micrographs of the immobilized microstructure proved the positive effects of the immobilized microbial technique on pyrene remediation in salinealkaline soil,as the interspace of the carrier material structure was relatively large,providing enough space for cell growth.Co-cultures of different bacterial and fungal species showed different abilities to degrade PAHs.The present study suggests that Mycobacterium sp.B2 can be employed for in situ bioremediation of PAHs in saline-alkaline soil,and immobilization of fungi on farm byproducts and nutrients as carriers will enhance fungus PAH-degradation ability in saline-alkaline soil.Shanxian Wang Xiaojun Li Wan Liu Peijun Li Lingxue Kong Wenjie Ren Haiyan Wu Ying Tu 2012Journal of Environmental Sciences2012,24,9:19
14A modified single-armed technique for microsurgical vasoepididymostomy显示文摘这研究是与 epididymal 在病人为 microsurgical vasoepididymostomy (VE ) 评估一种修改武装单人赛的缝术技术的有效性妨碍的精子缺乏。从 2011 年 9 月到 2011 年 12 月, microsurgical 二缝术的纵的摄取 VE 与 epididymal 在 17 个人用我们的修改武装单人赛的缝术技术被执行在我们的医院的妨碍的精子缺乏。二个这些病人在以前的没有通过的 VE 以后经历了重复 VE,并且因为左腹的管 deferens 的吸藏,一个病人经历了单方的 VE。在在 3 月 postoperation 的精液样品的精子的存在被用作这研究的初步的端点。每个病人在 3 月的时间点提供了至少一件精液样品,并且明显被精子的再现估计(>在精液的 10 4 ml −1) 。修改技术的吝啬的起作用的时间是 219   min。明显在 10 个人被注意(58.8 %) ,包括经历了重复 VE 的一个病人。经历了单方的吻合的病人没在他的精液手术后地表明精子。精子 granulomas 没在这个队被检测。这研究的结果表明那我们为 microsurgical 的修改技术纵的摄取 VE 有效。我们相信是一种实际选择可以减少操作时间并且排除缝术十字路口。Liang Zhao Chun-Hua Deng Xiang-Zhou Sun Yu Chen Wen-Wei Wang Liang-Yun Zhao Ling-You Zeng Xiang-An Tu 2013Asian Journal of Andrology2013,15,1:19
15Diffusion tensor imaging assesses white matter injury in neonates with hypoxic-ischemic encephalopathy显示文摘With improvements in care of at-risk neonates, more and more children survive. This makes it increasingly important to assess, soon after birth, the prognosis of children with hypoxic-ischemic encephalopathy. Computed tomography, ultrasound, and conventional magnetic resonance imaging are helpful to diagnose brain injury, but cannot quantify white matter damage. In this study, ten full-term infants without brain injury and twenty-two full-term neonates with hypoxic-ischemic encephalopathy(14 moderate cases and 8 severe cases) underwent diffusion tensor imaging to assess its feasibility in evaluating white matter damage in this condition. Results demonstrated that fractional anisotropy, voxel volume, and number of fiber bundles were different in some brain areas between infants with brain injury and those without brain injury. The correlation between fractional anisotropy values and neonatal behavioral neurological assessment scores was closest in the posterior limbs of the internal capsule. We conclude that diffusion tensor imaging can quantify white matter injury in neonates with hypoxic-ischemic encephalopathy.Hong-xin Li Xing Feng Qian Wang Xuan Dong Min Yu Wen-juan Tu 2017Neural Regeneration Research2017,12,4:19
16Palmitic acid induces autophagy in hepatocytes via JNK2 activation显示文摘Qian-qian TU Rui-ying ZHENG Juan LI Liang HU Yan-xin CHANG Liang LI Min-hong LI Ruo-yu WANG Dan-dan HUANG Meng-chao WU He-ping HU Lei CHEN Hong-yang WANG 2014Acta Pharmacologica Sinica2014,35,4:18
17Intercropping with Solanum nigrum and Solanum photeinocarpum from Two Ecoclimatic Regions Promotes Growth and Reduces Cadmium Uptake of Eggplant Seedlings显示文摘Soil contamination by heavy metals is a serious environmental problem worldwide, and reduction of heavy metal accumulation in vegetables grown on contaminated land is a matter of urgency. A pot experiment was conducted to study the effects of intercropping with the Cd hyperaccumulators Solanum nigrum and Solanum photeinocarpum from two ecoclimatic regions, Ya'an and Chengdu,Sichuan Province, China, on the growth and cadmium(Cd) uptake of eggplant(Solanum melongena L.). The biomass, photosynthetic pigment contents, and activities of antioxidant enzymes of eggplant were enhanced by intercropping. The biomass of eggplant was the highest after intercropping with S. photeinocarpum from Ya'an, but did not differ significantly from that after intercropping with S. nigrum from Chengdu. The shoot Cd content of eggplant was significantly reduced by intercropping with the hyperaccumulators,which ranked as follows: S. nigrum from Chengdu > S. nigrum from Ya'an > S. photeinocarpum from Chengdu > S. photeinocarpum from Ya'an, with the decreases being 19.60%, 14.36%, 9.66%, and 6.42%, respectively, as compared with the control. The lowest shoot Cd content and translocation factor of eggplant were attained after intercropping with S. nigrum from Chengdu. Therefore, it was feasible to intercrop eggplant with S. nigrum and S. photeinocarpum on Cd-contaminated soil.TANG Yi HE Juan YU Xuena XIE Yongdong LIN Lijin SUN Guochao LI Huanxiu LIAO Mingan LIANG Dong XIA Hui WANG Xun ZHANG Jing LIU Zejing TU Lihua LIU Li 2017Pedosphere2017,27,3:17
18Ginsenoside Rk1 suppresses pro-inflammatory responses in lipopolysaccharide-stimulated RAW264.7 cells by inhibiting the Jak2/Stat3 pathway显示文摘The saponin ginsenoside Rk1 is a major compound isolated from ginseng.Ginsenoside Rk1 has been reported to have anti-inflammatory and anti-tumor properties and to be involved in the regulation of metabolism.However,the effect and mechanism of anti-inflammatory action of ginsenoside Rk1 has not been fully clarified.We investigated whether ginsenoside Rk1 could suppress the inflammatory response in lipopolysaccharide-stimulated RAW264.7 macrophages and to explore its mechanism of the action.RAW264.7 cells were treated with LPS(1 μg×mL^(–1))in the absence or the presence of Ginsenoside Rk1(10,20,and 40 μmol×L^(–1)).Then the inflammatory factors were tested with Griess reagents,ELISA,and RT-PCR.The proteins were analyzed by Western blotting.Ginsenoside Rk1 inhibited lipopolysaccharide-induced expression of nitric oxide(NO),interleukin(IL)-6,IL-1β,tumor necrosis factor(TNF)-α,and monocyte chemotactic protein(MCP)-1.Ginsenoside Rk1 inhibited the lipopolysaccharide-stimulated phosphorylation of NF-κB and janus kinase(Jak)2 and signal transducer and activator of transcription(Stat)3 at Ser727 and Tyr705.These data suggested that ginsenoside Rk1 could inhibit expression of inflammatory mediators and suppress inflammation further by blocking activation of NF-κB and the Jak2/Stat3 pathway in LPS-stimulated RAW264.7 cells.YU Qian ZENG Ke-Wu MA Xiao-Li JIANG Yong TU Peng-Fei WANG Xue-Mei 2017Chinese Journal of Natural Medicines2017,15,10:17
19Hepatitis B virus infection:A favorable prognostic factor for intrahepatic cholangiocarcinoma after resection显示文摘AIM: To study the prognostic factors for intrahepatic cholangiocarcinoma (ICC) and evaluate the impact of chronic hepatitis B virus (HBV) infection on survival rate of ICC patients. METHODS: A total of 155 ICC patients who underwent macroscopic curative resections (R0 and R1) were enrolled in this retrospective study and divided into group A with HBV infection and group B without HBV infection according to their chronic HBV infection, represented by positive hepatitis B surface antigen (HBsAg) in serum or in liver tissue. Clinicopathological characteristics and survival rate of the patients were evaluated. RESULTS: All patients underwent anatomical resection. Their 1- and 3-year survival rates were 60.6% and 32.1%, respectively. Multivariate analyses revealed that HBV infection, hepatolithiasis, microscopic satellite lesion, and lymphatic metastasis were the independent prognostic factors for the survival rate of ICC patients. The median disease-free survival time of the patients was 5.0 mo. The number of tumors, microscopic satellite lesion, and vascular invasion were the independent prognostic factors for the disease-free survival rate of the patients. The prognostic factors affecting the survival rate of ICC patients with HBV infection and those without HBV infection were not completely consistent. Alkaline phosphatase > 119 U/L, microscopic satellite lesion, vascular invasion, and lymphatic metastasis were the independent factors for the patients with HBV infection, while rglutamyltransferase > 64 U/L, microscopic satellite lesion, and poor tumor differentiation were the independent factors for the patients without HBV infection. CONCLUSION: HBV infection is a valuable clinical factor for predicting tumor invasiveness and clinical outcome of ICC patients. ICC patients with HBV infection should be distinguished from those without HBV infection because they have different clinicopathological characteristics, prognostic factors and outcomes after surgical resection.Hua-Bang Zhou Hui Wang Yu-Qiong Li Shuang-Xi Li Hao Wang Dong-Xun Zhou Qian-Qian Tu Qing Wang Shan-Shan Zou Meng-Chao Wu He-Ping Hu 2011World Journal of Gastroenterology2011,17,10:16
20Neuroprotection of Cyperus esculentus L. orientin against cerebral ischemia/reperfusion induced brain injury显示文摘Orientin is a flavonoid monomer.In recent years,its importance as a source of pharmacological active substance is growing rapidly due to its properties such as anti-myocardial ischemia,anti-apoptosis,anti-radiation,anti-tumor,and anti-aging.However,the neuroprotective effects of Orientin on stroke injury have not been comprehensively evaluated.The aim of the present study was thus to investigate the neuroprotective capacity and the potential mechanisms of Cyperus esculentus L.orientin(CLO)from Cyperus esculentus L.leaves against ischemia/reperfusion(I/R)injury using standard orientin as control.For in vitro studies,we treated HT22 cells with CoCl2 as an in vitro ischemic injury model.HT22 cells in the control group were treated with CoCl2.For in vivo studies,we used rat models of middle cerebral artery occlusion,and animals that received sham surgery were used as controls.We found that CLO protected CoCl2-induced HT22 cells against ischemia/reperfusion injury by lowering lipid peroxidation and reactive oxygen species formation as well as decreasing protein oxidation.However,CLO did not reduce the release of lactate dehydrogenase nor increase the activity of superoxide dismutase.Results showed that CLO could decrease neurological deficit score,attenuate brain water content,and reduce cerebral infarct volume,leading to neuroprotection during cerebral ischemia-reperfusion injury.Our studies indicate that CLO flavonoids can be taken as a natural antioxidant and bacteriostastic substance in food and pharmaceutical industry.The molecular mechanisms of CLO could be at least partially attributed to the antioxidant properties and subsequently inhibiting activation of casepase-3.All experimental procedures and protocols were approved on May 16,2016 by the Experimental Animal Ethics Committee of Xinjiang Medical University of China(approval No.IACUC20160516-57).Si-Qun Jing Sai-Sai Wang Rui-Min Zhong Jun-Yan Zhang Jin-Zi Wu Yi-Xian Tu Yan Pu Liang-Jun Yan 2020Neural Regeneration Research2020,15,3:16
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