克山病患者肝炎及柯萨奇病毒感染的观察

目的 通过测定慢型、潜在型克山病患者血清中肝炎及柯萨奇病毒抗体的水平，探讨克山病病毒感染学说。方法 选择黑龙江省富裕县克山病病区慢型、潜在型克山病患者34例，健康人32例。病毒抗体的测定采用ELISA方法，统计学使用病例对照研究的方法。结果 C型肝炎抗体(HCV—IgM)阳性的OR是9．54(95％信赖区间1．07～∞)，有统计学意义。结论 从C型肝炎病毒抗体(HCV—IgM)的阳性率在克山病患者中明显增高的这一结果推测，C型肝炎病毒的感染可能在克山病的发生、发展中起一定的作用。     

克山病患者分离到的柯萨奇B3病毒结构分析

本文对克山病患者分离到的柯萨奇B_3病毒(CVB_3)进行结构分析,用病毒性心肌炎分离的CVB_3株及CVB_3标准株(Nancy 株)作对照,结果是:三株病毒经蔗糖密度梯度离心提纯,用SDS—聚丙烯酰胺凝胶电泳分析,三株病毒均有4条主要多肽,其分子量在8～37KD 之间,糖蛋白染色显示Vp_1、Vp_2、Vp_3为糖蛋白;三株病毒相对于抗CVB_9单克隆抗体的抗原位点均在 Vp_1上,三株病毒的核酸在琼脂糖凝胶中电泳,显示单一的 RNA 区带,其电泳迁移率相同。三株病毒的电镜负染色结果观察均为球状病毒,符合肠道病毒的基本形态。实验证明:三株病毒的外壳蛋白及生物学特性方面未见差异。     

潜慢型克山病患者柯萨奇B组病毒特异性IgM的检测

目的研究柯萨奇Ｂ组病毒（ＣｏｘｓａｃｋｉｅｖｉｒｕｓＢ,ＣＶＢ）感染与克山病发病的关系。方法采用间接酶联免疫吸附法（ＥＬＩＳＡ）对陕西省黄陵县克山病病区潜、慢型克山病患者血清ＣＶＢ１－６ＩｇＭ和ＣＶＢ１－６ＩｇＧ进行检测。结果①潜在型、慢型克山病组血清ＣＶＢ１－６ＩｇＭ抗体阳性率明显高于非病区健康对照组（２８．５７％ｖｓ７．５％,Ｐ＜０．０５）,但明显低于心肌炎组（６０．００％,Ｐ＜０．０５）。②潜、慢型克山病组血清ＣＶＢ１－６ＩｇＧ抗体阳性率明显高于非病区健康对照组（３８．１０％ｖｓ７．５％,Ｐ＜０．０５）,但与心肌炎组比较无明显差异。结论病区潜、慢型克山病患者有ＣＶＢ感染存在     

长春地区10年间柯萨奇B组病毒感染的流行病学调查分析

由于地方病防治工作的发展，克山病的流行已基本得到控制，柯萨奇B组病毒在克山病研究中的致病机理已有大量报道，柯萨奇B组病毒在人群中广泛流行越来越被研究工作者重视。开展柯萨奇B组病毒的流行病学调查工作，不仅对于病毒性心肌炎的防治，而且对克山病的防治工作都具有深远的现实意义和历史意义。随着分子生物学技术的发展，运用核酸杂交方法从克山病尸检标本中发现有CoxB组病毒的RNA，进一步提示克山病与CoxB组病毒感染有关[１]，那么，非病区的长春地区柯萨奇病毒感染情况怎样呢？多年来我们一直从事柯萨奇B组病毒抗体IgM的检测…     

用原位核酸杂交法探讨柯萨奇B组病毒与黑龙江慢型克山病的关系

克山病是原因未明的地方性心肌病，慢型克山病有关病毒病因的研究未见有关报道，作者用生物素标记的柯萨奇Ｂ３病毒的ｃＤＮＡ探针与黑龙江病区慢型克山病尸检心肌组织及非正常死亡成人心肌组织和非病区７￣８个月引产胎儿心肌组织进行了原位杂交，以检测柯萨奇Ｂ组病毒ＲＮＡ。结果１３例慢型克山病中有９例呈现阳性杂交信号，阳性率达６９．２％，两对照组均为阴性。表明黑龙江慢型克山病心肌组织中有柯萨奇Ｂ组病毒ＲＮＡ的存在，     

心肌梗死患者与柯萨奇B组病毒感染关系的研究

心肌梗死与柯萨奇Ｂ组病毒 (ＣｏｘＢＶ)感染的关系 ,已引起国内外关注〔1～3〕,为探讨ＣｏｘＢＶ感染在心肌梗死患者发病中的意义 ,我们对急性心肌梗死 (ＡＭＩ)患者和正常人进行了调查 ,现将结果报告如下。1　对象与方法1 .1 　 对象患者组 :本院心血管内科 1 999年 1 0月～ 2 0 0 1年 4月住院 ,临床诊断为ＡＭＩ患者 1 0 5例 ,男 79例 ,女 2 6例 ;年龄 2 5～ 93岁。入院 1～ 2ｄ内采集血清。对照组 :采集本院门诊健康体检的 40例正常人血清 ,年龄 2 5～ 90岁。1 .2 　 方法逆转录聚合酶链反应 (ＲＴ ＰＣＲ)方法检测急性期患者血清中肠道…     

克山病尸检心肌标本柯萨奇B组病毒RNA片段的序列分析

目的通过原位核酸杂交技术和RT-PCR技术探讨柯萨奇B组病毒感染与吉林亚急型克山病的关系.方法以柯萨奇B组病毒基因组的一段共同序列做寡核苷酸探针,于5′端行生物素标记,检测亚急型克山病患者尸检心肌组织标本中柯萨奇病毒的感染率;选取阳性标本做RT-PCR,并对PCR产物进行核苷酸序列分析,比较其与柯萨奇B组病毒各血清型之间的差异.结果 9例亚急型克山病患者尸检心肌组织标本中有7例原位核酸杂交结果阳性,阳性率为77.78%;所选3例原位核酸杂交结果阳性标本RT-PCR均有长541 bp的DNA条带出现,测序结果表明该片段与柯萨奇病毒B3同区域序列一致,与B1、B4、B5的同源性较大.结论亚急型克山病患者体内有柯萨奇B组病毒RNA存在,柯萨奇病毒可能在克山病的发生发展中扮演重要的角色.     

用原位核酸杂交法探讨柯萨奇B组病毒与克山病的关系──（黑龙江省急型克山病）

为探讨柯萨奇Ｂ组病毒感染与黑龙江省急型克山病的关系。本文用缺口平移法制备生物标记的柯萨奇Ｂ３病毒的ｃＤＮＡ探针与１３例急型克山病尸检心肌组织及脑外伤、ＣＯ中毒等意外死亡的正常成人心肌组织１０例，非病区７～８个月引产胎儿心肌组织１０例的石腊切片进行原位杂交。结果１３例急型克山病中有８例出现阳性杂交信号，即有柯萨奇Ｂ组病毒的ＲＮＡ存在，阳性率达６１．５％。对照组均为阴性，提示黑龙江省急型克山病有柯萨奇Ｂ组病毒感染，可能是急型克山病发病因素之一。     

糖尿病患者血清可溶性细胞间粘附分子-1和可溶性血管细胞粘附分子-1变化的研究

目的　研究糖尿病患者血清可溶性细胞间粘附分子 - 1(s ICAM- 1)和可溶性血管细胞粘附分子 - 1(s VCAM- 1)水平的变化。方法　应用酶联免疫吸附法 (EL ISA)检测了 18例 1型糖尿病和 47例 2型糖尿病患者及 2 0例健康对照者的血清 s ICAM- 1、s VCAM- 1以及甘油三酯 (TG)水平。结果　 1血清 s ICAM- 1和 s VCAM- 1水平 ,1型、2型糖尿病患者组均显著高于健康对照组 (P<0 .0 5～ 0 .0 1) ,2型糖尿病有微血管病变组又高于无微血管病变组 (P<0 .0 5～ 0 .0 1) ,1型糖尿病与 2型糖尿病组之间无显著性差异 ;2血清 s VCAM- 1水平 ,2型糖尿病的高甘油三酯血症组 (A组 )、高甘油三酯血症合并高血压组 (B组 )高于单纯高血压组 (C组 )和甘油三酯、血压正常组 (D组 ) (P均 <0 .0 5 ) ;3 1型糖尿病和 2型糖尿病患者血清 s ICAM- 1和 s VCAM- 1之间均呈正相关关系 (r=0 .83、0 .5 3,P均 <0 .0 1)。结论　 12型糖尿病患者血清 s VCAM- 1升高与高甘油三酯血症有关 ;2血清 s ICAM- 1和 s VCAM- 1参与了糖尿病微血管病变的发病过程 ,并可作为糖尿病病情变化的监测指标     

关于高血压患者血清HGF、sICAM-1水平的研究（英文）

目的：探讨高血压患者血清肝细胞生长因子（HGF）,可溶性细胞间黏附分子-1（sICAM-1）水平的变化及其意义。方法：选择59例高血压患者,其中高血压1级组20例,高血压2级组19例,高血压3级组20例,并选择30例健康体检者作为正常对照组。用酶联免疫双抗体夹心法检测各组血清HGF和sICAM-1浓度,并进行比较。结果：与正常对照组相比,高血压患者血清HGF[（641.65±142.90）pg/ml比（998.15±241.38）pg/ml]、sI-CAM-1[（161.70±32.36）ng/ml比（327.17±31.28）ng/ml]水平明显升高（P〈0.01）,血压越高,其变化越显著（P〈0.01）,HGF浓度与sICAM-1浓度呈正相关（r=0.317,P〈0.01）。结论：HGF与sICAM-1可能参与了高血压的发病过程,而且HGF在高血压内皮细胞损伤的修复中可能具有重要作用。     

胃肿瘤患者循环可溶性细胞间粘附分子-1和血管细胞粘附分子-1

AIM To elucidate the biological and clinical significance of sICAM-1 and sVCAM-1 in patients with gastric cancer.METHODS The serum levels of soluble ICAM-1 and VCAM-1 were measured with sandwith enzyme immunoassay.RESULTS In gastric cancer patients, soluble ICAM-1 and VCAM-1 concentrations were significantly elevated in comparision with those of healthy subjects (289.23μg/L±32.69μg/L vs 190.44μ/L±35.92μg/L,1430.88μg/L±421.71μg/L vs 727.24μg/L±157.68μg/L, respectively, P＜0.01). The increment in serum sICAM-1 and sVCAM-1 concentrations correlated well with the staging of gastric cancer. The serum levels of sICAM-1 and sVCAM-1 in patients of Ⅲ-Ⅳ stages were higher than those of Ⅰ-Ⅱ stages (346.60μg/L±92.10μg/L vs 257.54μg/L±32.77μg/L, 1800.60μg/L±510.76μg/L vs 1262.81μg/L±236.73μg/L). The levels of sICAM-1 and sVCAM-1 were correlated significantly (r=0.49,P＜0.01). The sICAM-1 and sVCAM-1 levels correlated positively with alkaline phophatase (r=0.63,0.71,P＜0.001) and white cell count (r=0.52,0.43, P＜0.01); but correlated negatively with serum albumin (r=-0.41, -0.49, P＜0.01).CONCLUSION The measurement of circulating ICAM-1 and VCAM-1 may bring additional prognostic information for patients with gastric cancer in varying stages.INTRODUCTIONTumor growth and metastasis involves a variety of cell-cell and cell-extracellular matrix interactions mediated by cell adhesion molecules. Currently, a number of cell adhesion molecules, such as intercellular adhesion molecules-1 (ICAM-1), vascular cell adhesion molecules-1 (VCAM-1), etc. have been found.ICAM-1 and VCAM-1 are members of the immunoglobulin supergene family which are cytokine-induced glycoproteins (IL-1, TNFα and IFNγ). Both of them have five or seven extracellular immunoglobulin-like domains, a single transmembranous domain and a short cytoplasmic tail[1,2]. The natural ligand of ICAM-1 or VCAM-1 is LFA-1 (CD11a) and Mac-1 (CD11b) or VLA-4, respectively[3]. ICAM-1 is a widely distributed protein on a variety of tissues, and can be detected in many cells such as macrophage, T- and B-cells, or fibroblasts, endothelial and epithelial cells. VCAM-1 is also a widely distributed protein and is constitutively expressed on tissue macrophage, dentritic cells in lymphoid tissue and skin, as well as on bone marrow fibroblasts and epithelial cells. Expression of VCAM-1 is inducible on vascular endothelial cells under pathological conditions[4].Recently, soluble forms of several adhesion molecules including ICAM-1 and VCAM-1 were found in serum of normal donors[5]. Abnormally high levels of them have been described in some solid malignant tumors, leukemia, autoimmune disease, infectious disease, etc.The present study was carried out to measure the circulating levels of sICAM-1 and sVCAM-1 in gastric cancer before treatment was given and to study their correlation with clinical, histological and routine laboratory parameters.     

细胞间黏附分子1在甲型流感病毒感染中的研究进展

细胞间黏附分子1(ICAM-1)是免疫球蛋白超家族中的一员,表达于内皮细胞、巨噬细胞、树突状细胞、T淋巴细胞、成纤维细胞及各类上皮细胞等多种细胞表面,并参与多种炎症细胞黏附、迁移过程及T淋巴细胞的增殖、活化等重要生理过程。细胞静息状态时会低水平表达ICAM-1,而各种内源性及外源性炎症刺激因子会诱导ICAM-1表达水平...     

慢性乙型重型肝炎患者血清sICAM-1的检测及临床意义

目的探讨慢性乙型重型肝炎患者血清可溶性细胞间粘附分子-1(sICAM-1)的变化及其临床意义。方法采用双抗体夹心酶联免疫吸附法对50例慢性乙型重型肝炎患者和30例正常人血清sICAM-1水平进行测定。对50例慢性乙型重型肝炎患者用ELISA法检测乙型肝炎病毒血清标志物,荧光定量PCR法检测HBV DNA载量、全自动生化分析仪检测肝功能、全自动血凝分析仪检测凝血酶原活动度(PTA)。结果慢性乙型重型肝炎患者血清sICAM-1水平明显高于健康对照组(P<0.01),存活组血清sICAM-1水平明显高于死亡组(P<0.01);慢性乙型重型肝炎患者血清sI-CAM-1水平与PTA呈显著正相关(r=0.475,P<0.01),与血清总胆红素呈显著负相关(r=-0.395,P<0.01),与丙氨酸氨基转移酶、白蛋白无相关性(r=0.014、-0.214,P>0.05);27例HBV DNA<1×105copies/ml者与23例HBV DNA≥1×105copies/ml者血清sICAM-1水平无显著性差异(P>0.05);7例HBeAg( )/HBeAb(-)者与43例HBeAg(-)/HBeAb( )者血清sICAM-1水平也无显著性差异(P>0.05)。结论慢性乙型重型肝炎患者血清sI-CAM-1水平显著高于健康对照组,存活组血清sICAM-1水平明显高于死亡组。sICAM-1参与了慢性乙型重型肝炎的肝损伤过程,并与患者病情程度有一定的相关性,但与乙型肝炎病毒的复制水平无相关。     

细胞黏附分子-1与胆汁淤积关系研究进展

细胞黏附分子-1(intercellular adhesion molecule-1,ICAM-1)是存在于细胞膜上的一种具有多类效应的糖蛋白,可介导细胞间的趋化和黏附.ICAM-1可与肝脏内皮细胞膜表面相对应的受体结合,使内皮细胞通透性上升并分泌大量介质,促使细胞间的聚集,进而提高炎性细胞与内皮细胞间的黏附效应.近期...     

细胞间黏附分子-1基因多态性与冠心病相关性研究

目的:研究细胞间黏附分子-1(ICAM-1)469K/E及241G/R多态性位点等位基因分布频率及其与冠心病(CHD)的关系。方法:选择197例湖北地区健康汉族人(对照组)及103例CHD患者(CHD组),应用等位基因特异性PCR(巢式PCR),对每个个体的基因型进行鉴定。同时,采用酶法、免疫比浊法及酶联免疫吸附试验对研究对象血脂和ICAM-1水平进行检测。结果:2组间除性别、年龄及体质指数无明显差异外,其他各项指标如吸烟、总胆固醇、三酰甘油(TG)、高密度脂蛋白胆固醇、低密度脂蛋白胆固醇、ICAM-1均差异有统计学意义(P<0·01);241R等位基因的分布频率分别为0·039及0·030,因其频率太低,无法建立其与血脂及CHD间的联系;469K/E位点,CHD组稀有等位基因E的频率明显高于对照组(χ2=4·549,P<0·05),KK、KE、EE3种基因型在2组中的分布差异有统计学意义(χ2=6·313,P<0·05),且2组中KK、KE、EE3种基因型的TG与ICAM-1水平差异有统计学意义(P<0·01)。结论:ICAM-1469E等位基因与CHD患者TG及ICAM-1水平升高有关,可能是该地区人群CHD的危险因子。     

慢性病毒性肝炎患者血清sICAM-1与肝组织病理变化的相关性研究

目的评价sICAM-1在慢性肝病诊治中的临床意义。方法对130例慢性肝炎患者血清sICAM-1、纤维化指标和肝活检病理改变等进行相关性研究。结果ICAM-1在慢性肝炎肝组织的表达与炎症活动度、肝纤维化程度均呈显著正相关。血清sICAM-1水平与肝组织ICAM-1表达呈显著正相关(r=0.64,P<0.01),并与慢性肝炎的临床及病理分度呈一致性改变。血清sICAM-1水平与HA、PCⅢ、CⅣ、LN亦有良好的相关性(P<0.01)。结论慢性肝炎患者肝组织及血清ICAM-1水平可一定程度反映肝脏炎症和纤维化程度。血清sICAM-1水平的监测可作为临床判断慢性肝炎病情严重程度和预后的重要免疫学指标之一。     

High level of intercellular adhesion molecule-1 affects prognosis of patients with hepatocellular carcinoma

AIM: To determine the cut-off value of intercellular adhesion molecule-1 (ICAM-1) and assess the correlation of ICAM-1 with clinicopathological features and the prognosis of hepatocellular carcinoma (HCC) patients who underwent surgical resection.METHODS: We prospectively collected clinicopathological data from 236 HCC patients who had undergone successful hepatectomy. Receiver operating characteristic curve analysis was performed to determine the optimal cut-off value of ICAM-1. Enzyme-linked immunosorbent assay was used to measure the concentration of ICAM-1 in 236 serum samples isolated from HCC patients and the stratified analysis was used to compare the serum level of ICAM-1 in different HCC subgroups. Immunohistochemistry was performed to test the expression level of the ICAM-1 protein in 76 cases of HCC tissues and their adjacent normal liver tissues (ANLT). The survival probability of HCC patients was estimated using Kaplan-Meier plots and differences between the groups were obtained using the log-rank test. Furthermore, independent indicators of the prognosis were acquired using a stepwise Cox proportional hazard model to analyze a series of predictors that were associated with disease-free survival (DFS) and overall survival (OS) in HCC patients.RESULTS: Our findings suggested that ICAM-1 promotes HCC metastasis and high serum ICAM-1 is significantly associated with alpha-fetoprotein (AFP) (P = 0.022), clinical tumor-node-metastasis stage (P < 0.001), portal vein tumor thrombus (P = 0.005), distant metastasis (P = 0.016) and recurrence (P = 0.034). We further detected the ICAM-1 protein in HCC specimens and found that 56 of 76 (73.7%) HCC tissues had ICAM-1 positive staining while only 23 of 76 (30.3%) ANLT were positively stained (P < 0.0001). Survival analysis indicated that HCC patients with increased ICAM-1 concentrations had significantly shorter DFS and OS after resection. A multivariate analysis showed that ICAM-1 > 684 ng/mL was an independent factor for DFS (HR = 1.643; 95%CI: 1.125-2.401; P = 0.010) and OS (HR = 1.692; 95%CI: 1.152-2.486; P = 0.007).CONCLUSION: ICAM-1 may be a promising serological biomarker for HCC diagnosis and an independent predictor of DFS and OS after surgical resection and may provide a useful reference for the prediction of intra- and extrahepatic metastasis.     

2型糖尿病患者血清可溶性细胞间黏附分子与大血管病变的相关性研究

本研究显示2型糖尿病（T2DM）大血管病变组血清可溶性细胞间黏附分子（sICAM-1）显著高于非大血管病变组和对照组，sICAM-1与hsC—RP、Fib、TG、TC以及LDL—C呈显著正相关，且SBP、hsC—RP和sICAM-1对T2DM大血管病变呈独立正相关影响。