乙型肝炎患者血清sICAM-1、sVCAM-1含量的检测及其意义

目的：通过观察乙型肝炎患者血清中sICAM-1和sVCAM-1的水平及其与ALT、AST相关性，探讨Ⅰ型超敏反应与乙型肝炎发病机制的关系。方法：应用酶联免疫吸附实验，检测45例乙型肝炎患者及15例对照组血清sICAM-1和sVCAM-1水平；应用全自动生化分析仪检测患者血清ALT和AST水平，并观察与sICAM-1和sVCAM-1的相关性。结果：①7例急性肝炎患者血清中sICAM-1和sVCAM-1含量明显高于正常对照组；②38例慢性肝炎患者血清中sICAM-1和sVCAM-1含量也明显高于正常对照组；③13例中度慢性肝炎患者的sICAM-1和sVCAM-1含量显著高于16例轻度慢性肝炎患者；④9例重度慢性肝炎患者的sICAM-1和sVCAM-1含量也明显高于轻度组和中度组：⑤sICAM．1水平与血清内ALT、AST含量呈显著正相关；⑥sVCAM-1水平与血清ALT、AST含量也呈显著正相关。总之，在以上几组中，急性乙型肝炎组的sICAM-1和sVCAM-1的升高最显著，并依次为慢性肝炎重度组、中度组和轻度组。结论：①急、慢性乙型肝炎患者血清中sICAM-1和sVCAM-1水平可反映肝损害程度；②检测急、慢性乙型肝炎患者血清sICAM-1和sVCAM-1水平，对判断患者的病情和预后有一定的参考价值；③作为Ⅰ型超敏反应性炎症的重要指标，sICAM-1和sVCAM-1可能参与了，乙型肝炎的发病和肝细胞的免疫损伤过程。     

三种血管内皮损伤指标血清水平与冠心病病变范围的关系

目的:探讨血清可溶性血管细胞黏附分子-1(sVCAM-1)、可溶性细胞间黏附分子-1(sICAM-1)、血管性血友病因子(vWF)水平与冠心病(CHD)病变范围的相关性。方法:根据冠脉造影结果将87例患者分为CHD组(63例)和对照组(24例)。采用ELISA平行检测两组血清sVCAM-1、sICAM-1和vWF水平,酶法测定血脂水平,比较两组患者sVCAM-1、sICAM-1、vWF及血脂水平的差异,并进行相关性分析;以冠脉狭窄支数作为判断CHD病变范围的依据,探讨不同病变范围患者血清sVCAM-1、sICAM-1和vWF的水平变化。结果:CHD组血清sVCAM-1、sI-CAM-1、vWF水平显著高于对照组(P<0.01);血清sVCAM-1、sICAM-1和vWF水平与血脂水平之间无明显相关性(P>0.05);单支冠脉狭窄组血清sVCAM-1、sICAM-1水平显著低于多支冠脉狭窄组(P<0.05)。结论:CHD患者血清sV-CAM-1、sICAM-1和vWF水平升高,sVCAM-1、sICAM-1水平与CHD病变范围有关。     

氟伐他丁对ACS患者CRP及sICAM-1、sVCAM-1的影响

目的:研究氟伐他丁对急性冠状动脉综合征(ACS)患者血清C-反应蛋白(CRP)及可溶性细胞黏附分子-1(sICAM-1)、可溶性血管细胞黏附分子-1(sVCAM-1)的影响.方法:采用随机、对照的方法将109例ACS患者分为氟伐他丁组(55例)和常规治疗组(54例),另选50例健康人为对照组,测定治疗前、治疗8周后血清CRP、sICAM-1、sVCAM-1的变化.结果:①ACS患者血清CRP、sICAM-1、sVCAM-1水平明显高于对照组(P＜0.01).②氟伐他丁组治疗8周后血清CRP、sICAM-1、sVCAM-1水平显著降低(P＜0.01).而常规治疗组治疗后无显著变化.结论:氟伐他丁对ACS患者有抗炎抗细胞黏附作用.     

肾移植术后血清sICAM-1和sVCAM-1的动态监测及临床意义

目的：探讨肾移植术后监测血清可溶性细胞问粘附分子-1(sICAM-1)和可溶性血管细胞粘附分子-1(sVCAM-1)的临床意义。方法：采用ELISA法，动态监测86例肾移植患者手术前后血清sICAM-l和sVCAM-1的变化。结果：移植术前sICAM-1、sVCAM-l与对照组无显著性差别，术后均明显升高，于第3天时达到高峰，l周至2周后降至术前水平。发生急性排斥反应前l-3天血清sICAM-1、sVCAM-1即开始升高，抗排斥治疗有效后逐渐下降。并发感染时sICAM-1、sVCAM-l显著升高，CsA中毒时无明显变化。结论：动态监测血清sICAM-1、sVCAM-l可做为早期辅助诊断急性排斥反应的免疫学指标，有助于急性排斥反应与CsA肾中毒的鉴别。     

妊娠期高血压病患者血管活性因子水平的变化

目的：探讨妊娠期高血压病患者血浆神经肽Y（NPY）、降钙素基因相关肽（CGRP）、可溶性血管细胞黏附分子-1（sVCAM-1）及可溶性细胞间黏附分子-1（sICAM-1）水平的变化与患者发病的关系。方法：：32例非孕妇女、30例正常孕妇（对照组）及30例妊娠期高血压病患者的血浆NPY、CGRP含量均采用放射免疫分析;血浆sVCAM-1和sICAM-1采用酶联免疫分析法测定。结果：本文结果显示,对照组CGRP水平较非孕妇女组升高显著（P〈0.05）;妊娠期高血压病治疗前组CGRP水平较对照组降低非常显著（P均〈0.01）;经治疗水平明显升高,但与对照组比较仍存在显著差异（P〈0.05）。NPY水平对照组较非孕妇女组升高无显著性（P〉0.05）;治疗前组NPY水平较对照组升高非常显著（P〈0.01）;经治疗水平已明显下降,与对照组比较差异无显著性（P〉0.05）。sVCAM-1水平对照组与非孕妇女组比较无显著性差异（P〉0.05）;治疗前组水平较对照组升高显著（P〈0.05）;经治疗水平明显下降,较对照组略高,但已无显著性差异（P〉0.05）。sICAM-1水平显示对照组及非孕妇女组略升高,但无显著性差异（P〉0.05）;治疗前组较对照组略高,但也无显著性差异（P〉0.05）;经治疗sICAM-1水平与对照组比较亦无显著性差异（P〉0.05）。相关分析结果显示,CGRP含量血浆浓度与其平均动脉压呈显著负相关（r=-0.5812,P〈0.01）,而NPY含量则显著高于对照组妇女,并随病情的加重而上升,与其平均动脉压呈显著正相关（r=0.6097,P〈0.01）。结论：妊娠期高血压病患者血浆NPY、CGRP及sVCAM-1三项指标的测定对于了解和认识其发病机理及预估病情有帮助。     

黏附分子与冠状动脉病变程度的相关性分析

探讨黏附分子与冠状动脉病变程度的关系。分析 88例冠状动脉造影患者临床资料 ,并经ELISA法检测患者循环血中可溶性细胞间黏附分子 1(sICAM 1)、可溶性血管细胞黏附分子 1(sVCAM 1)、P选择素 (P selectin)水平。结果sICAM 1、sVCAM 1和P selectin在冠心病患者循环血中明显增高 ,与病变严重程度有一定关系 ;P selectin在急性冠状动脉综合征患者中 [( 3 8 76± 6 74) μg L) ]明显增高 ,与对照组 [( 19 5 4± 1 72 ) μg L]间有非常显著性差异(P <0 0 1) ;sICAM 1与低密度脂蛋白呈正相关 (r=0 2 71,P <0 0 5 ) ;sVCAM 1与年龄和胆固醇呈正相关 (r =0 2 84,P <0 0 5 ;r=0 3 69,P <0 0 1)。提示循环血中黏附分子水平可反映出动脉粥样硬化病变的炎症反应状态。可作为估计冠状动脉粥样硬化病变严重程度的指标之一     

可溶性细胞间黏附分子-1在原发性肝癌患者血清中的表达及其与肝纤维化的关系

目的:探讨可溶性细胞间黏附分子-1(sICAM-1)在原发性肝癌(PHC)患者血清中的水平及其与肝纤维化的关系。方法:采用ELISA方法测定45例PHC患者、30例良性肿瘤患者和35例健康查体者血清sICAM-1和肝纤维化四项(PCⅢ、Ⅳ-C、LN、HA)水平,并分析sICAM-1与肝纤维化之间的关系。结果:PHC组血清sICAM-1和肝纤维化四项(PCⅢ、Ⅳ-C、LN、HA)水平均显著高于良性肿瘤组和正常对照组,相比较有显著性差异(P<0.05);而良性肿瘤组和正常对照组各指标比较差异无统计学意义(P>0.05);血清sICAM-1含量与PCⅢ、Ⅳ-C、LN、HA含量呈显著正相关性(r=0.683、0.575、0.573、0.539,P<0.05)。结论:检测血清sICAM-1的水平对判定PHC患者的病情、为肝癌的早期诊断和治疗有着重要的临床意义。     

2型糖尿病患者血清VEGF与sVCAM-1水平的变化及其临床意义

目的探讨2型糖尿病（type Ⅱ diabetes mellitus,T2DM）血清中血管内皮细胞生长因子（VEGF）与可溶性血管细胞黏附分子-1（sVCAM-1）的水平及其临床意义。结论采用双抗体夹心酶联免疫吸附法（ELISA）检测20例2型糖尿病患者和25例正常人血清VEGF与sVCAM-1水平。结果 2型糖尿病患者血清VEGF和sVCAM-1水平（389.64±54.60）pg/ml和（1443.87±422.33）ng/ml较正常对照组（100.60±22.81）pg/ml和（648.26±173.66）ng/ml明显升高（P〈0.05）。结论 2型糖尿病患者血清VEGF、sVCAM-1含量增高,可能与2型糖尿病的发病机制有关。     

不同运动背景的健康大学新生血清可溶性细胞间黏附分子-1的含量与分析

探讨可溶性细胞间黏附分子-1(sICAM-1)的表达与运动的相关性.用酶联免疫吸附试验(ELISA双抗体夹心法)检测健康大学生71例(包括运动训练专业的47例和非运动专业的24例)的sICAM-1水平,并进行统计学处理.结果表明71例的sICAM-1的平均值为183.81±41.05ng/ml,运动训练专业的sICAM-1值高于非运动专业的sICAM-1值,但无统计学意义(P＞0.05).各组均显示男性的sICAM-1值高于女性的sICAM-1值,仍无显著性差异.有运动背景的健康大学生血清sICAM-1水平高于无运动背景的,男生的血清sICAM-1水平高于女生的,但均无显著性差异.     

多发性骨髓瘤患者血清IL-18和sVCAM-1的水平及临床意义

目的探讨多发性骨髓瘤患者血清白细胞介素18（IL-18）和可溶性血管细胞黏附分子-1（sVCAM-1）的水平及临床意义。方法应用ELISA法检查15例多发性骨髓瘤患者治疗前的血清IL-18和sVCAM-1的水平,并与正常对照进行比较。结果多发性骨髓瘤患者血清IL-18和sVCAM-1的水平[（1154.6±299）pg/ml和（1704.5±405.86）ng/ml]明显高于正常对照组[（256.39±59）pg/ml和（538.16±91.21）ng/ml]。结论多发性骨髓瘤患者血清IL-18、sVCAM-1含量明显增高,可能与多发性骨髓瘤的发病机制有关。     

氟伐他汀对缺血再灌注损伤兔心肌细胞间粘附分子的影响

目的:探讨氟伐他汀短期预处理对缺血再灌注损伤兔心肌的保护作用及其机制。方法:日本大耳白兔21只随机分为3组:①假手术对照组(Sham组),②缺血再灌注组(IR组),③氟伐他汀干预组(F组)。实验中持续监测左室收缩压(LVSP)、左室舒张末压(LWEDP)、左室内收缩压最大上升速率和下降速率(±dp/dtmax)的变化,再灌注结束后用伊文氏蓝和TTC染色法确定缺血和梗死心肌范围,用RT-PCR进行心肌局部ICAM-1 mRNA表达测定。结果:缺血再灌注后,F组上述心功能各项指标较IR组明显改善,心肌组织ICAM-1 mRNA水平较IR组显著降低;心肌梗死面积较IR组明显减小。结论:氟伐他汀短期预处理可降低心肌缺血再灌注后心肌ICAM-1 mRNA表达,降低心肌梗死程度,改善心功能,对心肌缺血再灌注损伤有明显的保护作用。     

STAT-1对急性胰腺炎大鼠胰腺组织ICAM-1表达的影响

目的:探讨信号转导与转录激活因子-1(STAT-1)在大鼠急性胰腺炎胰腺组织中不同时间点的变化及对细胞黏附分子-1(ICAM-1)表达的影响。方法:36只Wistar大鼠随机分为假手术组(SO组)和急性胰腺炎模型组(AP组)。胆胰管逆行注射5%牛磺胆酸钠制备急性胰腺炎模型。造模后3、6、12h取材,同时观察胰腺组织病理评分,免疫组化SABC法检测不同时间点胰腺组织磷酸化STAT-1和ICAM-1的表达。结果:AP组各时间点胰腺病理评分、磷酸化STAT-1和ICAM-1的表达明显高于SO组(P<0.01);AP组磷酸化STAT-1表达在3h达高峰,后逐渐下降;ICAM-1阳性表达随时间延长逐渐增强,12h达高峰。结论:胰腺炎大鼠胰腺组织STAT-1的活化直接或间接上调ICAM-1的表达可能在其发病过程中起到一定的作用。     

sICAM-1和PCT在急性胰腺炎诊治中的临床价值

目的：探讨细胞间黏附分子-1（sICAM-1）和降钙素原（PCT）水平在急性胰腺炎（AP）发病中的作用及诊断意义。方法：将77例急性胰腺炎（AP）患者分为轻型急性胰腺炎（MAP）31例,重症型急性胰腺炎（SAP）46例,并对SAP按有无感染分为SAP-1（感染性）25例和SAP-2（非感染性）21例;分别取其7d内的空腹静脉血,用ELISA测定血清sICAM-1水平,用双抗体夹心化学发光法测定血清PCT水平,并与正常对照组进行比较。结果：SAP-1和SAP-2组的sICAM-1水平高于MAP组,差异有统计学意义（P〈0.01）,所有的AP患者与正常对照组比较,也存在显著差异;SAP-1组的PCT水平与MAP组、SAP-2组和正常对照组比较,差异有统计学意义（P〈0.01）。结论：sICAM-1和PCT的水平变化与AP的发生、发展过程密切相关,认为其可以作为AP早期诊断及预后判断有价值的指标。     

2型糖尿病视网膜病变患者血清sVCAM-1水平的变化和意义

研究糖尿病视网膜病变不同时期血清可溶性血管内皮细胞粘附分子-1(sVCAM-1)与视网膜病变严重程度、诊断病程、血清胰岛素和血糖的相关性.采用ELISA法检测85例2型糖尿病视网膜病变患者血清sVCAM-1含量, 由同一眼科医师通过眼底镜或荧光造影检查, 将患者分为无视网膜病变组(NDR)、背景期视网膜病变组(BDR)和增殖期视网膜病变组(PDR).结果显示, 三组糖尿病患者血清sVCAM-1水平均高于对照组, 其中PDR组、BDR组血清sVCAM-1水平与对照组和NDR组比较, 均有显著性差异(P＜0.01), NDR组与对照组比较也存在显著性差异(P＜0.01).糖尿病患者血清sVCAM-1水平与血糖、血清胰岛素、诊断病程均无相关性(P＞0.05).研究表明, 糖尿病视网膜病变不同时期血清sVCAM-1水平的变化可作为判断视网膜病变发展和严重程度的指标, 为临床早期发现和治疗糖尿病视网膜病变提供较好的依据.     

Impact of Intercellular Adhesion Molecule-1 Genetic Polymorphisms on Coronary Artery Disease Susceptibility in Taiwanese Subjects

The principal pathogenesis of coronary artery disease (CAD) is coronary artery atherosclerosis, a chronic inflammatory disease of the vessel walls of the coronary artery. Intercellular adhesion molecule-1 (ICAM-1) displays an important role in the development of the inflammation reaction and atherosclerosis. Few studies report the association of ICAM-1 genetic polymorphisms with CAD in Taiwanese subjects. Therefore, we conducted a study to associate the single nucleotide polymorphisms (SNPs) of ICAM-1, rs5491, rs5498, rs281432 and rs3093030 with CAD. Five hundred and twenty-five male and female subjects, who received elective coronary angiography in Taiwan Chung Shan Medical University Hospital, were recruited to determine four ICAM-1 SNPs by real time-polymerase chain reaction and genotyping. The relationships among ICAM-1 SNPs, haplotypes, demographic and characteristics and CAD were analyzed. This study showed that rs281432 (C8823G) was the only ICAM-1 SNP which affect the development of CAD. Multivariate analysis revealed that ICAM-1 SNP rs281432 CC/CG [p=0.016; odds ratio (OR): 2.56, 95% confidence interval (CI): 1.19-5.56], male gender (p=0.018; OR: 1.66, 95% CI: 1.09-2.51), aspirin use in the past 7 days (p=0.001; OR: 2.05, 95% CI: 1.33-3.14), hypertension (p<0.001; OR: 2.15, 95% CI: 1.42-3.25), serum cardiac troponin I elevation (p<0.001; OR: 2.14, 95% CI: 1.47-3.24) and severe angina in recent 24 hours (p=0.001; OR: 1.97, 95% CI: 1.31- 2.95) increase the risk of CAD. In conclusion, ICAM-1 SNP rs281432 is an independent factor to predict the development of CAD. ICAM-1 SNP rs281432 homozygotic mutant GG can reduce the susceptibility to the CAD in Taiwanese subjects.     

Expression of Intercellular Adhesion Molecule-1 (ICAM-1) on Cultured Human Endometrial Stromal Cells and Its Role in the Interaction With Natural Killers

PROBLEM: Recent evidence emphasizes the role of natural killer cells (NKs) as potential effectors of peritoneal immune surveillance directed against the outgrowth of endometrial cells, refluxed with menstrual debris, in ectopic sites. This NK-mediated cytotoxicity toward autologous endometrial antigens seems to be significantly decreased in endometriosis patients. METHOD: We set up experiments to clarify which molecules are involved in NK-endome-trial cell interaction. In particular, we evaluated the surface expression and functional activity of intercellular adhesion molecule-1 (ICAM-1), a cell surface glycoprotein that has been identified as one of the ligands for lymphocyte function-associated antigen-1 (LFA-1), present on almost all leucocyte cell types. Immunofluorescence flow cytometry was used to assess ICAM-1 expression on resting and IL 1β-activated endometrial stromal cells in culture. Dermal fibroblasts were used as control cells. Cytotoxicity and binding assays by ⁵¹Cr release in presence and absence of a specific monoclonal antibody (mAb) against ICAM-1 were then performed in order to determine the effect of this molecule on NK-mediated cytotoxic and binding activity toward endometrial stromal cells. RESULTS: The results of this study indicated that ICAM-1 expression on endometrial stromal cells seems to be constitutively higher than on dermal fibroblasts and can be up-regulated upon exposure to IL 1β. Furthermore, a mAb against ICAM-1 strongly inhibits the binding but not the cytotoxicity of NKs toward endometrial cells. No difference in the expression of this molecule was observed throughout the cycle. CONCLUSIONS: The presence of ICAM-1 on human endometrium might relate to the action of the immunocompetent cells in human specific reproductive events.     

溶血磷脂酰胆碱对内皮细胞表面粘附分子表达的影响

大量的单核细胞募集是动脉粥样损伤形成的早期表现之一,相关的内皮细胞粘附分子在其中具有积极作用。本文研究了溶血磷脂酰胆碱（Ｌｙｓｏｐｈｏｓｐｈａｔｉｄｙｌｃｈｏｌｉｎｅ,Ｌｙｓｏ－ＰＣ）对培养的人脐静脉内皮细胞（ＨＵＶＥＣｓ）膜上细胞间粘附分子－（Ｉｎｔｅｒｃｅｌｌｕｌａｒ ａｄｈｅｓｉｏｎ ｍｏｌｅｃｕｌｅ－１,ＩＣＡＭ－１）、Ｅ选择素（Ｅｎｄｏｔｈｅｌｉａｌ－ｌｅｕｋｏｃｙｔｅ ａｄｈｅｓｉｏｎ     

Soluble Intercellular Adhesion Molecule-1 Serum Profile in Physiologic and Preeclamptic Pregnancy

PROBLEM: The aim of this study was to determine serum levels of soluble intercellular adhesion molecule (sICAM)-1, an adhesion receptor that mediates interactions with the immune system, in physiologic and preeclamptic pregnancies. Moreover, we evaluated whether the release of sICAM-1 during pregnancy correlated to plasma fibronectin concentrations. METHOD OF STUDY: Serum was collected from 18 nonpregnant, control women, from 58 normal pregnant women during the first (n = 13), second (n = 15), and third (n = 30) trimesters, and from 25 preeclamptic patients at 27–39 weeks' gestation. All samples were assayed for sICAM-1 by a specific enzyme-linked immunoassay and for fibronectin by a nephelometric system. Serum sICAM-1 levels in preeclamptic patients were compared to those obtained from gestational-matched normal pregnant women. RESULTS: Levels of sICAM-1 were significantly elevated (P < 0.001) in each of the three trimesters of normal pregnancy (I trimester: 390.4 ± 25.7 ng/ml; II trimester: 386.3 ± 15.4 ng/ml; and III trimester: 367.3 ± 15.8 ng/ml) when compared to those of healthy nonpregnant women (263.3 ± 11.6 ng/ml). No significant difference in sICAM-1 concentrations was observed among the three trimesters. Preeclampsia was associated to a significant decrease (P < 0.01) of sICAM-1 levels (309.8 ± 11.6 ng/ml) relative to those observed in gestational-matched pregnant women (367.3 ± 15.8 ng/ml). Fibronectin and sICAM-1 levels did not correlate. CONCLUSION: The increased levels of sICAM-1 found in physiologic pregnancies and its reduction in preeclampsia may account for some of the immunologic alterations demonstrated to be associated with pregnancy.     

Adhesion molecules (E-selectin, intercellular adhesion molecule-1 (ICAM-1) and vascular cell adhesion molecule-1 (VCAM-1)) in sera from patients with Staphylococcus aureus bacteraemia with or without endocarditis

The aim of this prospective study was to evaluate if patients with endocarditis display a more extensive endothelial activation than those with bacteraemia but without endocarditis. Sixty-five patients with blood culture-verified Staphylococcus aureus bacteraemia were included and serum samples collected on admission were analysed by enzyme immunoassays. Elevated serum concentrations of adhesion molecules were found in most of the patients with S. aureus bacteraemia. Patients with endocarditis (n = 15) showed significantly higher serum E-selectin (median 156 ng/ml) and VCAM-1 (median 1745 ng/ml) concentrations compared with those with S. aureus bacteraemia but without endocarditis (80 ng/ml and 1172 ng/ml, respectively; P = 0.01 and P = 0.003). No significant difference was found between the groups concerning ICAM-1 (median 451 ng/ml versus 522 ng/ml). In addition, serum tumour necrosis factor-alpha (TNF-alpha) concentrations were significantly correlated (P < 0.002) to serum levels of E-selectin, ICAM-1 and VCAM-1.     

细胞间粘附分子在脑血管内皮细胞的表达

本文用细胞培养方法，观察脑血管内皮细胞粘附分子（ＩＣＡＭ－１）的表达和内皮细胞与血液单核细胞的粘附作用。结果证实，ＴＮＦ－α，ＩＬ－１和ＩＦＮ可使ＳＨＲ和ＷＫＹ脑血管内皮细胞ＩＣＡＭ－１表达和单核细胞粘附增加，两组动物细胞相比，ＳＨＲ内皮细胞ＩＣＡＭ－１表达及粘附率增加较多，提示ＳＨＲ脑血管内皮细胞可能对细胞因子的敏感性升高。