77 research outputs found

    The effect of s-Oleylpropanolamide on the expression of cell adhesion molecules in human umbilical vein endothelial cells

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    目的探讨s-油酰丙醇胺对用肿瘤坏死因子α(TNF-α)诱导的人脐静脉内皮细胞黏附分子(VCAM-1,I-CAM-1,E选择素)表达的影响。方法从新鲜的脐带中分离出人脐静脉内皮细胞,培养至3~9代,用不同浓度的s-油酰丙醇胺(10,50,100μmol/L)孵育12 h后,用TNF-α(20 ng/mL)孵育8 h,采用荧光实时定量PCR和细胞酶联免疫吸附试验分别检测VCAM-1,ICAM-1,E选择素的mRNA及蛋白的表达,同时采用细胞黏附实验检测其对细胞黏附的影响。结果相对于正常的人脐静脉内皮细胞,TNF-α诱导后的人脐静脉内皮细胞黏附分子(VCAM-1,ICAM-1,E-选择素)的表达明显增加。s-油酰丙醇胺可以显著的抑制VCAM-1的表达,并呈现出一定的剂量依赖性,而且对人急性单核细胞性白血病细胞(THP-1)的黏附也有明显的抑制作用,但对ICAM-1,E-选择素的表达却没有影响。结论s-油酰丙醇胺和大多数的PPARα激动剂一样,能够抑制慢性炎症,减少单核细胞的黏附,抑制VCAM-1的表达,而对急性炎症没有作用,如对E-选择素的表达无影响。 【英文摘要】 Purpose To investigate the effect of s-Oleylpropanolamide on the expression of cell adhesion molecules such as VCAM-1,ICAM-1,E-selectin in human umbilical vein endothelial cells(HUVECs).Methods HUVECs were pretreated with different concentrations of s-Oleylpropanolamide for 12 h and then stimulated with TNF-α for 8 h.Cell Enzyme linked immunsorbendt assay.Real-time PCR and adhesion assay were performe to measure the expression of ahesion molecules in mRNA and protein levels and monocyte binding.Results s-Ol...厦门市科技计划高校创新项目(3502Z20083007);; 厦门大学“活性有机小分子的合成化学与化学生物学”创新团队项

    Constructing a Modern Chemical Experimental Teaching Demonstration Centre

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    介绍了厦门大学化学化工学院在深化实验教学改革,建设现代化的国家级实验教学示范中心方面的一些做法。全文分6个部分对实验教学体系与管理,教学内容改革与教师队伍建设等几方面进行了讨论。This paper introduced the reform of experimental teaching the school of chemistry and chemical engineering,Xiamen University did to establish a national modern chemical experimental teaching demonstration centre.A new teaching system including teaching methods,construction of teacher team and the management of experimental teaching were discussed.依托优势学科,构筑高水平大学创新性人才培养跨学科立体实验教学平台(教育部高等教育理工教育教学改革与实践项目

    国家级实验教学示范中心建设的探索与实践

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    实验教学是人才培养的重要环节,对学生创新能力的培养具有重要的作用。厦门大学化学实验教学中心在建设国家级化学实验教学示范中心进程中进行了有益的探索与实践。文章分别在学校、学院政策与措施,实验教学体系与内容,教师队伍与教学实验室建设,发挥实验中心的辐射与示范作用等方面进行了论述

    利用本科生科研训练平台培养高素质人才

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    通讯联系人, Em ai:l yax ian@ xmu. edu. cn厦门大学化学人才培养基地十分重视本科生科研训练,依托化学学科优势,从2003年起设立了"化学人才基地育苗基金",制定了一系列政策鼓励学生进入科研课题组,通过科研训练发展个性、培养创新能力、提高综合素质,建立了一个较完善的本科生科研训练平台。国家基础科学人才培养基

    Practical synthesis of trans-dihydroxybutyrolactols as chiral C-4 building blocks and their application to the synthesis of polyhydroxylated alkaloids

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    NSF of Fujian, China [2010J01049]; NSF of China [20672089]Practical syntheses of trans-dihydroxybutyrolactols 2a, 2b and 2c from inexpensive chiral pool compounds L-ascorbic, D-and L-tartaric acid have been achieved on a multigram-scale. The synthetic applications of these chiral building blocks have been demonstrated in the efficient total or formal synthesis of polyhydroxylated alkaloids (+)-lentiginosine and (-)-deacetylanisomycin in concise routes

    合成除草醚的有效方法

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    合成除草醚的有效方法廖联安,郭奇珍,张洪奎,陈明德(厦门大学化学系,福建361005)除草醚(nITrOfEn)是六十年代美国rOHM&HASS公司[1]发展的选择性触杀型除草剂,化学名称为2,4-二氯-4'-硝基二苯醚[2,4-dICHlOrOPH..

    酮的不对称还原的研究进展

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    综述了近年来羰基化合物的不对称还原的研究进展,给出了八种用于羰基化合物不对称还原的手性配体,以及它们在合成上的应用。同时对还原机理进行了初步探讨
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