茶多酚对高糖时内皮细胞产生活性氧和TGF-β1的影响

目的探讨高糖对内皮细胞产生活性氧和转化生长因子岛(TGF-β1)的影响,以及茶多酚的干预作用。方法培养人脐静脉血管内皮细胞(ECV304),分为正常对照组、高糖组、茶多酚组和茶多酚干预组。培养0、12、36h后,用分光光度比色法测定细胞上清液超氧化物歧化酶(SOD)活性和丙二醛(MDA)含量,用RT-PCR法测定细胞内TGF-β1 mRNA的变化。结果高糖导致内皮细胞SOD活性下降和MDA含量升高,上调TGF-β1 mRNA表达,其变化随时间延长更为明显。茶多酚干预可拮抗高糖时内皮细胞的上述改变。结论茶多酚有抑制高糖对内皮细胞的损伤作用。     

高糖对人肾小球系膜细胞MPO、GSH-ST活性和ICAM-1表达影响及茶多酚的干预作用

目的 探讨高糖对人肾小球系膜细胞髓过氧化物酶(MPO)、谷胱甘肽-硫转移酶(GSH-ST)活性和细胞间黏附分子1(ICAM-1)表达的影响及茶多酚对其的干预作用.方法 应用分光光度比色法检测高糖作用后系膜细胞上清液中MPO、GSH-ST活性及茶多酚对其活性的改变;免疫细胞化学法和Western印迹检测高糖作用后系膜细胞内ICAM-1蛋白的表达及茶多酚对其表达的影响.结果 高糖使系膜细胞上清液中MPO活性增加,GSH-ST活性降低,使系膜细胞内ICAM-1表达增加;茶多酚可显著改善高糖对系膜细胞的影响.结论 高糖导致人肾小球系膜细胞氧化失衡,增强ICAM-1的表达;茶多酚可有效干预高糖的作用.     

细胞外基质金属蛋白酶诱导因子基因对小鼠结肠癌细胞CT26侵袭的影响

目的 探讨细胞外基质金属蛋白酶诱导因子(EMMPRIN)基因对小鼠结肠癌细胞CT26侵袭的影响.方法 构建包含EMMPRIN基因编码框的真核表达载体pCMV-HA2-EMMPRlN,通过脂质体转染CT26细胞,经G418筛选,建立稳定表达EMMPRIN基因的CT26细胞株.对照组为CT26小鼠结肠癌细胞,EMMPRIN组为转染EMMPRIN的小鼠结肠癌细胞.通过体外侵袭实验,分析EMMPRIN CT26细胞侵袭力的改变.通过蛋白质印迹、酶联免疫吸附测定及明胶酶谱实验分析过表达EMMPRIN,CT26细胞基质金属蛋白酶2(MMP-2)合成、分泌、激活的变化.结果 当EMMPRIN基因在CT26细胞稳定过表达后,侵袭实验的结果为EMMPRIN组(98±5)个细胞,对照组(48±6)个细胞(P＜0.01).蛋白质印迹、酶联免疫吸附测定及明胶酶谱实验结果证实,EMMPRIN可明显促进CT26细胞MMP-2的分泌及激活,但对CT26细胞MMP-2的合成无影响.结论 EMMPRIN基因可明显促进小鼠结肠癌细胞CT26的侵袭,并可明显促进CT26细胞MMP-2的分泌及激活.     

丙泊酚对体外高糖培养的人脐静脉内皮细胞的保护作用

目的 研究丙泊酚对高糖培养的人脐静脉内皮细胞(HUVECs)的保护作用.方法 根据体外培养HUVECs的条件不同随机分为六组:正常对照(C1)组、高渗对照(C2)组、高糖十脂肪乳对照(C3)组、高糖(HG)组、高糖+25μmol/L丙泊酚干预(P25)组、高糖+100 μmol/L丙泊酚干预(P100)组.检测各组细胞的丙二醛(MDA)含量、超氧化物歧化酶(SOD)活性及醛糖还原酶(AR)活性.结果 与C1、C2组比较,HG组MDA含量升高,SOD活性降低,AR活性增高(P＜0.01或P＜0.05).与HG组比较,P25组和P100组的MDA含量均下降、SOD活性均升高、AR活性均降低,P100组变化又比P25组明显(P＜0.0l或P＜0.05).结论 高糖可引起内皮细胞的氧化应激,造成细胞损伤.丙泊酚可抑制高糖对内皮细胞损伤.     

还原型谷胱甘肽对高糖环境下肾小管细胞活性氧、核因子-κB及骨桥蛋白的影响

目的 观察高糖对人肾小管上皮细胞(HK-2细胞)产生活性氧、核因子-κB(NF-κB)及骨桥蛋白(OPN)的影响及还原型谷胱甘肽(GSH)的干预作用.方法 用分光光度比色法测定上清液超氧化物歧化酶(SOD)活性和丙二醛(MDA)含量,用RT-PCR法测定细胞内NF-κB mRNA的变化及用ELISA法测定上清液中OPN的含量.结果 高糖组SOD活力显著低于正常组(P＜0.01),MDA含量、NF-κB mRNA的表达及OPN含量明显高于正常组(P＜0.01),GSH可增加SOD活力(P＜0.05),并减少MDA及OPN的含量、NF-κB mRNA的表达(P＜0.01).结论 高糖可导致HK-2细胞活性氧产生增多及NF-κB、OPN的高表达,而GSH可进行有效干预.     

脂联素对高糖环境下RPE细胞氧化应激及凋亡的影响

目的 通过高糖环境下培养人RPE细胞建立RPE细胞的氧化应激模型,观察脂联素对RPE细胞各氧化应激指标及凋亡的影响,从而揭示脂联素对RPE细胞可能的保护机制.方法 将体外培养的人RPE细胞分为3组:正常对照组、高糖组、高糖+脂联素组,分别干预24、48、72 h.在倒置显微镜下观察RPE细胞形态变化,采用硫代巴比妥酸法测定MDA含量,用黄嘌呤氧化酶法检测SOD含量和活性,用荧光定量RT-PCR法测定p66Shc、Ho-1在各个时间点上的表达,通过流式细胞术检测RPE细胞的凋亡率.结果 与正常对照组相比,高糖组MDA含量显著上升,SOD含量显著下降(P<0.05),与高糖组相比,脂联素组MDA含量显著下降,SOD含量显著上升(P<0.05),并且呈时间依赖性.与正常对照组相比,高糖组Ho-1 mRNA表达增高;脂联素组较高糖组表达亦增高(P<0.05).与正常对照组相比,高糖组p66Shc mRNA表达增高;脂联素组较高糖组表达降低(P<0.05),呈时间依赖性.流式细胞术RPE细胞凋亡高糖组细胞凋亡率较正常对照组明显增加,而脂联素组细胞凋亡率较高糖组显著下降.结论 脂联素可通过减少p66Shc表达,从而减少线粒体ROS产生、增加Ho-1表达,增加抗氧化能力,减少氧化应激反应,减少细胞凋亡,对糖尿病RPE细胞起保护作用.     

基质金属蛋白酶-14与细胞外基质金属蛋白酶诱导因子在口腔鳞状细胞癌中的表达及临床意义

目的探讨基质金属蛋白酶(MMP)-14和细胞外基质金属蛋白酶诱导因子(EMMPRIN)在口腔鳞状细胞癌(OSCC)中的临床意义,并分析二者的相关性。方法选取2012年1月至2014年6月于我院口腔颌面外科诊治的69例OSCC患者作为OSCC组,同时选取43例口腔正常新鲜组织标本作为对照组。采用逆转录-聚合酶链反应(RT-PCR)技术检测组织中的MMP-14及EMMPRIN mRNA的表达含量。结果 MMP-14mRNA、EMMPRIN mRNA在OSCC组中的相对表达量明显高于其在对照组中的相对表达量,差异具有统计学意义(t=8.198、9.624,P<0.01);OSCC组患者在年龄、性别因素中的MMP-14、EMMPRIN mRNA的表达差异无统计学意义(P>0.05),在伴有淋巴结转移的患者中均明显升高(t=2.909、2.156,P<0.05);且MMP-14、EMMPRIN mRNA在Ⅲ~Ⅳ期、中低分化的OSCC中表达均明显升高,差异具有统计学意义(t=3.376、2.667、3.027、2.399,P<0.05);MMP-14与EMMPRIN mRNA表达含量间相关系数为r=0.821,二者呈正相关性(P<0.01)。结论 OSCC组织中MMP-14和EMMPRIN的高表达状态均与肿瘤的病理分期、分化程度及淋巴结转移因素关系密切,两者的表达具有正相关性,提示MMP-14和EMMPRIN均参与了OSCC的浸润及转移过程,通过检测EMMPRIN及MMP-14mRNA表达含量可能有助于OSCC的病变程度及预后转归判断。     

积雪草酸对高糖培养大鼠肾小球系膜细胞氧化应激及细胞外基质分泌的影响

目的 探讨积雪草酸对高糖培养大鼠肾小球系膜细胞氧化应激及细胞外基质分泌的影响.方法 体外培养大鼠肾小球系膜细胞,分为高糖组(A组)、高糖加积雪草酸干预组(B组)、正常对照组(C组).培养1周、2周、3周后,分光光度计比色法检测细胞培养液上清液中超氧化物歧化酶(SOD)活力和丙二醛(MDA)含量,ELISA法检测培养液上清液中转化生长因子β1(TGF-β1)、纤连蛋白(FN)、Ⅳ型胶原(Col-Ⅳ)的含量.结果 与C组相比,A组细胞上清液SOD活力下降,MDA含量增加,且随时间延长变化越明显(P＜0.05);细胞上清液中TGF-β1、FN、Col-Ⅳ分泌量均增加,并且FN分泌量随时间延长变化越明显(P＜0.05).与A组相比,B组细胞上清液SOD活力增加,MDA含量下降,TGF-β1、FN、Col-Ⅳ分泌量减少(P＜0.05).结论 积雪草酸可以缓解高糖诱导的系膜细胞氧化应激损伤以及减少细胞外基质的分泌,对糖尿病肾病大鼠起肾保护作用.     

PTEN抑制剂对高糖诱导的内皮细胞衰老的影响

目的 PTEN抑制剂对高糖诱导内皮细胞衰老的影响。方法原代内皮细胞的培养和鉴定,CCK8检测细胞生存率,实验分为正常组(C)、高糖组(HG),PIC处理组(PIC)。C组糖浓度为5.6 mmol·L~(-1)(C组),HG浓度为30 mmol·L~(-1)(HG),PIC组过氧钒(PIC)浓度为10、100 nmol·L~(-1),预培养半小时后加高糖。流式细胞测定细胞凋亡,β-半乳糖苷酶染色试剂盒(SA-β-Gal)染色测定阳性细胞数,实时定量PCR测定p16、PTEN基因表达,Western印迹检测总PTEN p16蛋白表达水平。结果高糖降低内皮细胞生存率,高糖诱导内皮细胞PTEN基因及蛋白表达增加,增加β-半乳糖苷酶染色性阳性细胞数,p16、PTEN基因及蛋白表达增加。PIC增加高糖诱导的内皮细胞生存率,降低高糖诱导的内皮细胞p16、PTEN基因及蛋白的表达。高糖可以诱导内皮细胞凋亡,PIC降低高糖诱导的内皮细胞凋亡率。结论适当浓度PTEN抑制剂降低高糖诱导的内皮细胞衰老。高糖作用时间6 d可以诱导内皮细胞凋亡,PIC降低高糖诱导的内皮细胞凋亡率。     

高糖培养下大鼠红细胞多元醇代谢变化及二甲双胍的干预作用

目的:观察高糖培养条件下大鼠红细胞多元醇代谢及脂质氧化的变化及二甲双胍对此的干预作用。方法:用高糖培养大鼠红细胞,测定大鼠红细胞中山梨醇的含量及培养上清液中一氧化氮(NO)含量的变化,并观察加入不同浓度二甲双胍(2×10-5、4×10-6、8×10-7 mol.L-1)处理后对山梨醇和NO含量的影响,同时设立低糖培养的正常对照组进行比较。结果:与正常对照组比较,高糖对照组大鼠山梨醇含量升高、NO含量降低(P<0.01);与高糖对照组比较,加入二甲双胍后能显著降低山梨醇含量并可升高NO的含量(P<0.01或P<0.05)。结论:二甲双胍可通过抑制山梨醇含量的升高及增加NO的水平减轻高糖所致的红细胞损伤。     

2-amino-phenoxazine-3-one attenuates glucose-induced augmentation of embryonic form of myosin heavy chain, endothelin-1 and plasminogen activator inhibitor-1 in human umbilical vein endothelial cells

The aim of this study was to investigate the changes in mRNA level of embryonic form of myosin heavy chain (SMemb), endothelin-1 (ET-1) and plasminogen activator inhibitor-1 (PAI-1), which are considered to be involved in the angiogenesis and atherosclerosis in diabetic blood vessels, in human umbilical vein endothelial cells (HUVECs) caused by high ambient glucose, and the effects of 2-aminophenoxazine-3-one (Phx-3), which was produced by the reaction of bovine hemoglobin with o-aminophenol, on them. The mRNA level of SMemb, ET-1 and PAI-1 and the level of SMemb protein were extensively upregulated in HUVECs treated with high concentration of glucose (15 mM), compared with those in the cells with normal concentration of glucose (5 mM). The migration activity of HUVECs evaluated by the cell migration assay was accelerated by 15 mM glucose. When 10 microM Phx-3, at the concentration of which the proliferation of HUVECs was not affected, was administered to HUVECs with 15 mM glucose, the mRNA level of SMemb, ET-1 and PAI-1 and the level of SMemb protein were significantly downregulated to the normal levels in the cells. However, when 10 microM Phx-3 was administered to HUVECs with 5 mM of glucose, the mRNA level of SMemb, ET-1 and PAI-1 and the level of SMemb protein were not affected. The migration activity of HUVECs, which was accelerated by high glucose, was reversed by 10 microM Phx-3. The present results suggest that Phx-3 may be a drug to prevent the high glucose-associated endothelial damage, vascular angiogenesis in diabetic patients, by inhibiting the expression of angiogenic factors, such as SMemb, ET-1 and PAI-1, in the endothelial cells.     

二甲双胍激活Sirt3信号抑制高糖诱导内皮细胞衰老的实验研究

目的: 研究二甲双胍抑制高糖诱导人脐静脉内皮细胞(human umbilical vein endothelial cells, HUVECs)衰老的作用与机制。方法: 传代培养HUVECs,高糖刺激HUVECs 48 h建立血管内皮细胞衰老模型,采用噻唑蓝法(MTT)检测HUVECs活力,2',7'-二氢二氯荧光素二乙酸酯(DCFH-DA)为荧光探针检测细胞内活性氧(ROS)水平,硫代巴比妥酸法检测丙二醛(MDA)含量,酶联免疫吸附实验(ELISA)检测细胞培养上清液中白细胞介素-6(IL-6)、肿瘤坏死因子-α(TNF-α)的分泌量,β-半乳糖苷酶染色检测细胞衰老水平。使用Sirt3抑制剂3-TYP作用HUVECs后,蛋白免疫印迹法(Western blot)检测p53、PAI-1及Sirt3的蛋白表达水平。结果: 与正常对照组相比,高糖组中HUVECs的活力降低,细胞内ROS的水平和MDA含量增加,IL-6、TNF-α的分泌量增加,衰老阳性细胞的百分比增加,二甲双胍干预后能明显改善高糖诱导HUVECs的上述变化。3-TYP能显著逆转二甲双胍对p53、PAI-1、Sirt3蛋白表达的调控作用。结论: 二甲双胍对高糖诱导的HUVECs衰老具有明显改善作用,其作用机制与激活Sirt3密切相关。     

外源性硫化氢改善人脐静脉内皮细胞早熟性衰老与eNOS表达的关系

目的 拟探讨硫化氢(H2S)延缓人脐静脉内皮细胞(HUVECs)衰老与内皮型一氧化氮合酶(eNOS)的关系,为延缓HUVECs衰老提供新的靶点.方法 建立60μmol/L过氧化氢(H2O2)1 h诱导HUVECs衰老模型;通过检测衰老相关β-半乳糖苷酶(SAβ-Gal)染色阳性率来研究评估外源性硫氢化钠(NaHS)预处...     

Beneficial effects of evodiamine on P2X4-mediated inflammatory injury of human umbilical vein endothelial cells due to high glucose

Evodiamine has been reported to exhibit anti-inflammatory and anti-nociceptive effects, but the underlying mechanisms remain to be defined. P2X₄ receptor (P2X₄R) is a subtype of ATP receptors and plays important roles in pain, inflammatory and immune responses. We aimed to investigate whether evodiamine has beneficial effects on endothelial inflammatory injury mediated by chronic high glucose condition. We found that culturing human umbilical vein endothelial cells (HUVECs) with high glucose significantly increased the expression of P2X₄ receptor in HUVECs, cytosolic Ca^2 + concentrations and intracellular reactive oxygen species (ROS) while decreasing nitric oxide (NO); these effects could be reversed by evodiamine. High glucose also significantly increased the expression of the pro-inflammatory activators (NF-κB) and TNFR-ɑ, which was accompanied by the elevation of P2X₄R levels. Evodiamine was able to down-regulate the elevated NF-κB, TNFR-ɑ, P2X₄R and ROS, and up-regulate the decreased NO_. Thus the evodiamine may exert the anti-inflammation activity on high-glucose challenge HUVEC via suppressing the P2X4R signaling pathway, exhibiting beneficial ability to protect HUVECs from glucotoxicity.     

芍药内酯苷对高糖诱导的人脐静脉内皮细胞损伤的保护作用

目的 研究芍药内酯苷对高糖损伤的人脐静脉内皮细胞（HUVECs）的保护作用及机制.方法 采用33mmol·L-1的高糖培养基建立HUVECs损伤模型,并在造模前给予不同浓度的芍药内酯苷进行预保护,采用MTT法检测细胞活力,流式细胞术检测细胞凋亡,采用试剂盒检测细胞中内源性一氧化氮合酶（eNOS）和半胱天冬酶-3（Caspase-3）活性以及培养液中一氧化氮（NO）和乳酸脱氢酶（LDH）含量.结果 芍药内酯苷能够剂量依赖性增强细胞活力,降低Caspase-3活性和细胞凋亡率（P＜0.05）,并能增强eNOS的活性和NO的释放量（P＜0.05）.结论 芍药内酯苷对高糖诱导的HUVEs损伤具有保护作用,其机制可能与促进eNOS活性提高、NO释放量增加和抑制Caspase-3活性有关.     

Reduction of high glucose and phorbol-myristate-acetate-induced endothelial cell permeability by protein kinase C inhibitors LY379196 and hypocrellin A

Endothelial barrier dysfunction plays a pivotal role in the pathogenesis of diabetic vascular complications. Although recent studies have established a link between protein kinase C (PKC) pathway and hyperglycaemic-induced vascular permeability, it is unclear which PKC isoforms involve increased endothelial cell permeability. In the present study, we investigated whether high glucose induced endothelial hyperpermeability via distinct PKC isoforms in human umbilical vein endothelial cells (HUVECs) and whether increased endothelial permeability could be substantially reversed by PKC inhibitors LY379196 and hypocrellin A (HA). High glucose (20 mM) and phorbol-myristate-acetate (PMA)-induced endothelial hyperpermeability was almost abolished by 150 nM HA and partially reduced by 30 nM PKC beta inhibitor (LY379196). LY379196 and HA inhibited the membrane fraction of PKC activity in a dose-dependent manner. Western blot analysis revealed high-glucose-induced overexpression of PKC alpha and PKC beta2 in the membrane fraction of HUVECs. LY379196 (30 and 150 nM) selectively inhibited PKC beta2 with no significant effect on PKC alpha expression. HA (150 nM) significantly reduced PKC alpha expression with no inhibitory effect on PKC beta2. At higher concentrations (300 nM), both LY379196 and HA were no longer selective for PKC beta or alpha, respectively. This study showed that both PKC alpha and beta2 contributed to endothelial hyperpermeability. Since reduction of endothelial hyperpermeability was greater with inhibition of PKC alpha rather than PKC beta2, we conclude that PKC alpha may be a major isoform involved in endothelial permeability in HUVECs, and that PKC alpha-mediated endothelial permeability was significantly reversed by the PKC inhibitor HA.     

热应激诱导内皮细胞与白细胞黏附及油茶皂苷的拮抗作用

目的探讨热应激时内皮细胞与白细胞黏附的改变及油茶皂苷对此影响。方法建立人脐静脉内皮细胞(HU-VECs)热应激损伤模型,以油茶皂苷(10.0,1.0,0.1μmol.L-1)预处理细胞5 h,取培养细胞上清液测定LDH活性,HUVECs分别用于测定细胞存活率,白细胞黏附率及细胞间黏附分子-1(ICAM-1)的表达。结果热应激可引起LDH活性升高,白细胞黏附率及ICAM-1表达的增加,与对照组比较,差异具有显著性(P<0.01),但细胞存活率无明显下降。油茶皂苷呈浓度依赖性地对抗上述改变,但对细胞存活率无明显影响。结论油茶皂苷可抑制热应激诱导内皮细胞与白细胞黏附的增加,其机制可能是下调ICAM-1的表达。     

黄芪甲苷在高糖诱导的内皮细胞损伤中的作用研究

目的探讨黄芪甲苷(astragaloside Ⅳ,AS-IV)对高糖诱导的内皮细胞损伤的保护作用及机制。方法体外培养人脐静脉血管内皮细胞(human umbilical vein endothelial cells,HUVECs),使用高浓度葡萄糖(30 mmol/L)诱导细胞损伤,采用实时聚合酶链式反应(real-time polymerase chain reaction,RT-PCR)检测炎症因子肿瘤坏死因子(tumor necrosis factor,TNF)-α、白介素(interleukin,IL)-6和IL-1β的表达。使用不同浓度黄芪甲苷(10、20、50及100 μmol/L)处理高糖损伤的HUVECs,RT-PCR检测炎症因子TNF-α、IL-6和IL-1β的表达水平。黄芪甲苷干预后,酶联免疫吸附法(enzyme linked immunosorbent assay,ELISA)检测TNF-α、IL-6和IL-1β含量,蛋白质印迹法(western blot,WB)检测自噬相关蛋白LC3及Beclin1的表达。进一步将实验分为高糖组、黄芪甲苷组及3-甲基腺嘌呤(3-methyladenine,3-MA)组,RT-PCR检测TNF-α、IL-6和IL-1β的信使RNA(messenger RNA,mRNA)表达水平、WB法检测自噬相关蛋白LC3和Beclin1表达。结果高糖可显著诱导炎症因子TNF-α、IL-6和IL-1β的表达,50 μmol/L黄芪甲苷为最佳抑制炎症反应的浓度。黄芪甲苷组自噬相关蛋白LC3及Beclin1的蛋白水平显著上调,差异具有统计学意义(P<0.05)。与黄芪甲苷组相比,3-MA组自噬相关蛋白LC3和Beclin1的蛋白水平显著降低,TNF-α、IL-6、IL-1β的mRNA表达水平显著上调,差异具有统计学意义(P<0.05)。结论黄芪甲苷可保护内皮细胞免于炎症损伤,其作用机制可能与细胞自噬有关。     

高糖对HUVEC功能的影响及机制研究

目的观察葡萄糖对人脐静脉内皮细胞(HUVECs)活性功能的影响及机制研究。方法内皮细胞培养液体外培养HUVEC,用不同浓度(10、20、30、40、50mmol/L)的葡萄糖作用于HUVEC,用NO含量、eNOS活性检测、细胞凋亡测定和细胞内ROS检测方法,观察不同浓度葡萄糖作用后的HUVEC功能活性的影响。结果高糖对HUVEC的增殖活性具有剂量依赖性抑制作用。高糖剂量依赖性抑制HUVEC细胞eNOs活性、NO的产生,增强细胞凋亡和细胞内ROS的生成。结论葡萄糖对人脐静脉内皮细胞(HUVECs)活性功能具有抑制作用,其机制与增强细胞凋亡和增加细胞内ROS有关。     

Cornuside suppresses cytokine-induced proinflammatory and adhesion molecules in the human umbilical vein endothelial cells

Cornuside is a bisiridoid glucoside compound isolated from the fruit of Cornus officinalis SIEB. et ZUCC. The present study was designed to examine the effects of cornuside on expression levels of cytokine-induced proinflammatory and adhesion molecules in the human umbilical vein endothelial cells (HUVECs). Cornuside treatment attenuated tumor necrosis factor-alpha (TNF-alpha)-induced nuclear factor-kappa B (NF-kappaB) p65 translocation in HUVECs. In addition, cornuside suppressed the expression levels of endothelial cell adhesion molecules including intercellular adhesion molecule-1 (ICAM-1) and vascular cell adhesion molecule-1 (VCAM-1) induced by TNF-alpha. TNF-alpha-induced monocyte chemoattractant protein 1 (MCP-1) expression was also attenuated by treatment of cornuside. These inhibitory effects of cornuside on proinflammatory and adhesion molecules were not due to decreased HUVEC viability as assessed by MTT test. Taken together, the present study suggests that cornuside suppresses expression levels of cytokine-induced proinflammatory and adhesion molecules in the human endothelial cells.