Changes of soluble intercellular adhesion molecule-1 in the serum from patients with acute cerebral infarction

objective: To observe the changes of soluble intercellular adhesion molecule-1(sICAM-1) in the serum of patients with acute cerebral infarctlon (ACI) and their clinical significance. Methods: The concen-tration of sICAM-1 in the serum of 91 patients with ACI was determined with ELISA and then the results were compared wlth those of 43 patients with cerebral hemorrhage and 30 healthy individuals. Results: In the 24th hour after infarction. the concentration of sICAMu-1 in the serum was significantly higher in patients with ACI than in patients with cerebral hemorrhage and normal controls (P< 0. 01). In the patients with ACI, the concentration exhibited an decreasing tendency in the period from the 24th hour to the 14th day andwas correlated with the focal size of cerebral infarction. During the first 14 days after infarction, the concen-tration was significantly higher in the patients with the complication of infection than in those without. Con-clusion: sICAM-1 is closely correlated with clinical manifestation of ACI.

Relationship of plasma homocysteine, soluble intercellular adhesion molecule-1, high mobility group box 1 protein with carotid intima-media thickness in elderly patients with type 2 diabetes mellitus

Objective:To explore the relationship of plasma homocysteine(Hcy),soluble intercellular adhesion molecule-1(sICAM-1)and high mobility group box 1 protein(HMGB1)with carotid intima-media thickness(c-IMT)in elderly patients with type 2 diabetes mellitus.Methods:A total of 100 elderly patients who were diagnosed as type 2 diabetes mellitus in Baogang Hospital of Inner Mongolia from June 2017 to May 2020 were chosen as research objects.According to c-IMT,they were divided into the normal group(n=35),the mild to moderate group(n=41)and the severe group(n=24).The expression levels of plasma Hcy,sICAM-1 and HMGB1 were compared between groups respectively.Pearson’s correlation coefficient was used to analyze the relationship of plasma Hcy,sICAM-1,HMGB1 with c-IMT.Results:The comparison in plasma Hcy,sICAM-1,HMGB1 and c-IMT among the three groups of patients was of statistical significance(p<.05).The results of correlation analysis showed that the expression levels of plasma Hcy,sICAM-1 and HMGB1 were positively correlated with c-IMT in elderly patients with type 2 diabetes mellitus(r=.627,.598,.614;p<.05).Conclusions:The expression levels of plasma Hcy,sICAM-1 and HMGB1 are abnormally increased in elderly patients with type 2 diabetes mellitus,and related to c-IMT,which can provide a strong evidence for clinical diagnosis and treatment by detecting their levels in clinical practice.

EFFECTS OF ELECTROACUPUNCTURE ON EXPRESSION OF INTERCELLULAR ADHESION MOLECULE-1 IN THE RAT OF LOCAL CEREBRAL ISCHEMIA-REPERFUSION

Objective To investigate effects of electroacupuncture （EA） on expression of intercellular adhesion molecule-1 （ICAM-1） in the rat of local cerebral ischemia-reperfusion. Methods Eighty SD rats were randomly divided into a normal control group, a sham operation group, a model group and an EA treatment group, 20 rats in each group. The thread-obstruction method was used for preparation of ischemia-reperfusion model. Zea-Longa rating criteria were used for evaluation of nervous function disorder; Immunohistochemical SABC method was used for detection of ICAM-1 expression in the microvascular endothelial cell of the ischemic brain region, and ELISA method for the soluble ICAM-1 （slCAM-1） content in peripheral blood. Re. suits After cerebral ischemia-reperfusion, both ICAM-1 expression level in the microvascular endethelium cell of the ischemic brain region and slCAM-1 content in the peripheral blood significantly increased in the model group as compared with the normal group and the sham operation group （P〈0.01）; After EA treatment, the ICAM-1 expression level in the microvascular endothelial cell of the ischemic brain region and slCAM-1 content in the peripheral blood were significantly down-regulated in the EA treatment group as com- pared with the model group （P〈 0.05）. Conclusion After cerebral ischemia-reperfusion, the microvascular endothelial cell of the ischemic brain region releases ICAM-1, which induces inflammatory injury of cerebral tissues; EA treatment can decease the expression of ICAM-1, so as to prevent the brain from the injury.

Effects of TCMP-1 on the changes of platelet endothelial cell adhesion molecule-1 expression in acute edematous pancreatitis

BACKGROUND: Traditional Chinese medicine is a potent agent in the management of clinical and experimental acute pancreatitis (AP), but the molecular mechanism of its the- rapeutic action is unclear. Numerous experimental and clinical studies have shown that platelet endothelial cell ad- hesion molecule-1 (PECAM-1) is pivotal to leukocyte re- cruitment, which results in microcirculatory injury during inflammation, but its role in acute pancreatitis is poorly un- derstood. We investigated the effects of a compound of tra- ditional Chinese medicine pancreatitis-1 (TCMP-1) on the changes of platelet endothelial cell adhesion molecule-1 (PECAM-1) expression on polymorphonuclear leukocytes (PMNs) in acute edematous pancreatitis (AEP). METHODS: The model of acute pancreatitis was estab- lished by subcutaneous injection of caerulein, and TCMP-1 treated groups were given TCMP-1 by catheterization from mouth to stomach (20 ml/kg) immediately after first time subcutaneous injection of caerulein. The changes of expres- sion of PECAM-1 on leukocytes from the blood of the splenic vein and inferior vena cava were determined by flow cytometry. RESULTS: In the AEP group, expression of PECAM-1 on PMNs was not significantly different between pancreatic microcirculation and systemic circulation at AEP2h and AEP4h time point. Then from AEP4h time point to AEP8h time point, expression of PECAM-1 was up-regulated in systemic circulation while it was down-regulated in pancre- atic microcirculation and was significantly different be- tween pancreatic microcirculation and systemic circulation at AEP8h time point (P<0.05). In the TCMP-1 treated group, compared with the AEP group, expression of PE-CAM-1 on PMNs decreased in different levels between pan- creatic microcirculation and systemic circulation and was of significant difference at AEP8h time point (P <0.05). CONCLUSION: Inhibition of PECAM-1 expression on PMNs may prevent PMNs from transmigration through the endo- thelium and may be one of the treatment mechanisms of TCMP-1 decoction on AEP.

Differences in platelet endothelial cell adhesion molecule-1 expression between peripheral circulation and pancreatic microcirculation in cerulein-induced acute edematous pancreatitis

AIM: To investigate the changes of platelet endothelial cell adhesion molecule-1 (PECAM-1) expression on polymorphonuclear leukocytes (PMNs) in peripheral circulation and pancreatic microcirculation in cerulein-induced acute edematous pancreatitis (AEP).METHODS: Fifty Wistar rats were randomly divided into control group (n=10) and AEP group (n=40). A model of AEP was established by subcutaneous injection of cerulein 5.5 and 7.5 μg/kg at 0 and 1 h after the beginning of experiment respectively. PECAM-1 expression on PMNs from splenic vein and inferior vena cava was determined by RT-PCR at mRNA level and determined by flow cytometry at protein level.RESULTS: In experimental rats, an increased PECAM-1mRNA expression was seen from 4 to 8 h of AEP in peripheral circulation (0.77±0.25%, 0.76±0.28%, 0.89±0.30%,1.00±0.21% ), while in pancreatic microcirculation,expression decreased from 2 h and reached the lowest level at 6 h of AEP (0.78±0.29%, 0.75±0.26%, 0.62±0.28%,0.66±0.20%). There were significant differences at 8-h time point of AEP between peripheral circulation and pancreatic microcirculation (1.00±0.21% vs0.66±0.20%, P＜0.05).Meanwhile,the difference at protein level was also found.CONCLUSION: A reverse expression of PECAM-1 on PMNs was found between peripheral circulation and pancreatic microcirculation, suggesting that inhibition of PECAM-1expression may improve the pathological change of AEP.

The relationship between platelet endothelial cell adhesion molecule-1 and paraquat-induced lung injury in rabbits

BACKGROUND:Platelet endothelial cell adhesion molecule-1(PECAM-1),also known as CD31,is mainly distributed in vascular endothelial cells.Studies have shown that PECAM-1 is a very significant indicator of angiogenesis,and has been used as an indicator for vascular endothelial cells.The present study aimed to explore the relationship between the expression of PECAM-1 and the degree of acute lung injury(ALI) and fibrosis in paraquat(PQ) induced lung injury in rabbits.METHODS:Thirty-six adult New Zealand rabbits were randomly divided into three groups(12rabbits in each group) according to PQ dosage:8 mg/kg(group A),16 mg/kg(group B),and 32 mg/kg(group C).After PQ infusion,the rabbits were monitored for 7 days and then euthanized.The lungs were removed for histological evaluation.Masson staining was used to determine the degree of lung fibrosis(LF),and semi-quantitative immune-histochemistry analysis to determine the expression of PECAM-1.Pearson's product-moment correlation analysis was performed to evaluate the relationship between the expression of PECAM-1 and the extent of lung injuries expressed by ALI score and degree of LF.RESULTS:Rabbits in the three groups showed apparent poisoning.The rabbits survived longer in group A than in groups B and C(6.47±0.99 days vs.6.09±1.04 days vs.4.77±2.04 days)(P<0.05).ALI score was lower in group A than in groups B and C(8.33±1.03 vs.9.83±1.17 vs.11.50±1.38)(P<0.05),and there was statistically significant difference between group B and group C(P=0.03).LF was slighter in group A than in groups B and C(31.09%±2.05%vs.34.37%±1.62%vs.36.54%±0.44%)(P<0.05),and there was statistically significant difference between group B and group C(P=0.026).The PEACAM-1 expression was higher in group A than in groups B and C(20.31%±0.70%vs.19.34%±0.68%vs.18.37%±0.46%)(P<0.05),and there was statistically significant difference between group B and group C(P=0.017).Pearson's correlation analysis showed that the expression of PECAM-1 was negatively correlated to both ALI score(Coe=-0.732,P=0.001)and degree of LF(Coe=-0.779,P<0.001).CONCLUSIONS:The PECAM-1 expression significantly decreases in New Zealand rabbits after PQ poisoning,and the decrease is dose-dependent.The PECAM-1 expression is negatively correlated with ALI score and LF,showing a significant role in the development of lung injuries induced by PQ.

Monocyte chemotactic protein-1 and soluble adhesion molecules as possible prognostic markers of the efficacy of antiviral treatment in chronic hepatitis C

AIM:To explain the role of Monocyte chemotactic protein-1 (MCP-1) and soluble adhesion molecules in chronic hepatitis C during the treatment of interferon alpha (IFNα) 2 b and ribavirin (RBV). METHODS:Concentrations of MCP-1,soluble adhesion molecules intercellular adhesion molecule-1 (sICAM-1),sP- selectin,interleukin (IL) 6,and IL10 in serum were estimated in the group of 40 patients with chronic hepatitis C treated with IFNalpha2 b and RBV in 0,16,32,48 wk of the therapy, RESULTS:In chronic hepatitis C,before and during the treatment,the serum levels of MCP-1 and sP-selectin in responders were similar to those of healthy subjects.In non- responders (NR),MCP-1 increased in the course of IFNc^+RBV treatment,differences were statistically significant as compared to responders.MCP-1 correlated statistically with the activity of periportal inflammation (r=0.35,P<0.05) but not with staging of liver fibrosis,sICAM-1 positively correlated with inflammatory activity and fibrosis in NR.sP-selectin did not correlate with histological findings in the liver.The MCP-1 correlated with the soluble form of sP-selectin concentrations (r= 6,P<0.001) and with IL-10 level in NR (r=0.4,P<0.05).There was no correlation observed between the concentration of MCP-1 and sICAM-1,IL-6 during the treatment. CONCLUSION:MCP-1 concentration may be a prognostic marker of the efficacy of IFN+RBV therapy in patients with chronic hepatitis C.

血清SIRT1、sICAM-1及PD-L1联合检测对难治性弥漫性大B细胞淋巴瘤患者预后的评估效能

目的探讨血清沉默信息调节因子1(SIRT1)、可溶性细胞间黏附分子-1(sICAM-1)及细胞程序性死亡-配体1(PD-L1)联合检测对难治性弥漫性大B细胞淋巴瘤(DLBCL)患者预后的评估效能。方法选取2022年1月至2023年10月在郑州大学第一附属医院诊治的84例难治DLBCL患者作为研究对象,根据治疗后1个月的疾病状态将患者分为预后良好组(57例)和预后不良组(27例),收集患者的一般临床资料;采用酶联免疫吸附法(ELISA)检测患者血清SIRT1、sICAM-1及PD-L1水平;分析血清SIRT1、sICAM-1及PD-L1水平与患者临床特征、治疗效果及预后的关系;采用多因素logistic回归分析,筛选出患者预后不良的影响因素。绘制受试者工作特征(ROC)曲线,计算曲线下面积(AUC),评价血清SIRT1、sICAM-1及PD-L1水平对难治DLBCL患者预后的预测能力。结果预后不良组血清SIRT1、sICAM-1及PD-L1水平均高于预后良好组(P<0.05)。多因素logistic回归分析显示,血清SIRT1、sICAM-1及PD-L1水平是影响难治性DLBCL患者预后不良的独立危险因素(P<0.05);ROC结果显示,血清SIRT1、sICAM-1及PD-L1单独及三者联合预测难治性DLBCL患者预后不良的AUC分别为0.851、0.843、0.924、0.980,且三者联合的预测价值高于单独预测(P<0.05)。结论血清SIRT1、sICAM-1及PD-L1水平可作为难治DLBCL患者预后评估的重要指标,且三者联合检测的效能优于单项检测,对指导临床治疗及监测疾病进展有重要意义。

2型糖尿病下肢血管病变患者介入治疗后血清NLRP3及sVCAM-1水平对再狭窄的意义

目的探讨2型糖尿病下肢血管病变患者介入治疗后血清NOD样受体蛋白3(NLRP3)及可溶性血管细胞黏附分子-1(sVCAM-1)水平对再狭窄的意义。方法回顾性分析2022年1月~2023年1月于河北省邯郸市中心医院血管介入科104例成功行血管介入治疗的2型糖尿病下肢血管病变患者的临床资料。根据介入后再狭窄发生情况分为再狭窄组(n=20)和无再狭窄组(n=84),比较两组患者一般资料及介入后24 h血清NLRP3、sVCAM-1水平,采用多因素Logistic回归模型分析再狭窄发生的影响因素;创建受试者工作特征(ROC)曲线,分析血清NLRP3、sVCAM-1检测对再狭窄的预测价值。结果与无再狭窄组相比,再狭窄组患者2型糖尿病病程、下肢动脉病变长度更长,Fontaine分期Ⅳ期占比、下肢动脉完全闭塞占比及血清糖化血红蛋白(HbA1c)、超敏C反应蛋白(hs-CRP)、NLRP3、sVCAM-1水平更高(P<0.05);多因素Logistic回归分析显示,下肢动脉完全闭塞、下肢动脉病变长度、HbA1c、NLRP3及sVCAM-1是2型糖尿病下肢血管病变患者介入后再狭窄发生的影响因素(P<0.05);ROC曲线显示,血清NLRP3、sVCAM-1联合检测对2型糖尿病下肢血管病变患者介入后再狭窄发生的预测价值较高,敏感度为95.00%,特异度为71.43%,ROC曲线下面积为0.929。结论血清NLRP3、sVCAM-1水平高表达均是2型糖尿病下肢血管病变患者介入治疗后再狭窄发生的危险因素,二者联合检测能提高2型糖尿病下肢血管病变患者介入治疗后再狭窄预测的准确性。

冠心病患者外周血miR-126水平与PCI术后支架内再狭窄、血清hs-CRP及sVCAM-1水平的关系

目的分析冠状动脉粥样硬化性心脏病(冠心病)患者外周血miR-126水平与经皮冠状动脉介入治疗(PCI)术后支架内再狭窄(ISR)、血清超敏C反应蛋白(hs-CRP)及可溶性血管细胞黏附分子-1(sVCAM-1)水平的关系。方法选取2021年2月至2022年2月于北京航天总医院收治的冠心病患者103例(病例组),所有患者均接受PCI。病例组中急性心肌梗死32例(AMI组),不稳定型心绞痛42例(UAP组),稳定型心绞痛29例(SAP组),另选取同期50例非冠心病的健康体检者作为对照组。分别检测外周血miR-126、hs-CRP、sVCAM-1水平及PCI术后ISR的发生情况,分析miR-126水平与PCI术后支架内再狭窄、hs-CRP及sVCAM-1水平的相关性。结果病例组的miR-126表达水平明显低于对照组,hs-CRP、sVCAM-1表达水平明显高于对照组(P<0.05);三组不同类型冠心病患者的miR-126、hs-CRP、sVCAM-1水平比较,差异有统计学意义(P<0.05)。AMI组的miR-126表达水平明显低于UAP组和SAP组(P<0.05),UAP组的miR-126表达水平明显低于SAP组(P<0.05),AMI组的hs-CRP、sVCAM-1表达水平明显高于UAP组和SAP组(P<0.05)。UAP组的hs-CRP、sVCAM-1表达水平明显高于SAP组(P<0.05);ISR组的miR-126表达水平明显低于未ISR组,hs-CRP、sVCAM-1表达水平明显高于未ISR组(P<0.05)。冠心病患者miR-126水平与hs-CRP、sVCAM-1水平均呈明显负相关(P<0.05),hs-CRP水平与sVCAM-1水平呈明显正相关(P<0.05)。结论miR-126水平与冠心病患者PCI术后ISR密切相关,可能通过患者的炎症反应、动脉粥样硬化促进PCI术后ISR的发生。

Adhesion molecule and proinflammatory cytokine gene expression in hepatic sinusoidal endothelial cells following cecal ligation and puncture

INTRODUCTIONMultiple organ dysfunction syndrome (MODS) isthought to be a frequent consequence of sepsis[1-3].Despite substantial advances in our knowledge and understanding of the basic pathophysiologic mechanisms[4-7], in critically ill patients infections and sepsis are still associated with a high mortality[8,9].

血浆ET-1、D-D、sVCAM-1、ICAM-1水平预测突发性耳聋患者预后的价值

目的探讨血浆内皮素-1(ET-1)、D-二聚体(D-D)、血浆可溶性血管细胞黏附分子-1(sVCAM-1)、细胞间黏附因子-1(ICAM-1)在预测突发性耳聋患者预后方面的价值。方法选取2020年6月—2022年6月上海市杨浦区控江医院收治的老年突发性耳聋患者130例,作为观察组。选取同期检查的健康体检者120例,作为对照组。采用酶联免疫法(ELISA)测量2组患者血浆ET-1、D-D、sVCAM-1、ICAM-1水平。采用受试者工作特征(ROC)曲线评估血浆ET-1、D-D、sVCAM-1、ICAM-1水平预测突发性耳聋患者预后的价值。结果观察组血浆ET-1、D-D、sVCAM-1、ICAM-1水平显著高于对照组,差异有统计学意义(P<0.05)。与高频突发性耳聋相比,低频突发性耳聋患者血浆ET-1、D-D、sVCAM-1、ICAM-1水平更高,差异有统计学意义(P<0.05)。随着突发性耳聋患者听力损失的加重,血浆ET-1、D-D、sVCAM-1、ICAM-1水平显著升高,差异有统计学意义(P<0.05)。与治疗有效组相比,治疗无效组血浆ET-1、D-D、sVCAM-1、ICAM-1水平显著提升,差异有统计学意义(P<0.05)。血浆ET-1、D-D、sVCAM-1和ICAM-1联合应用时预测治疗有效的灵敏度、特异度高于单一指标预测(P<0.05)。结论血浆ET-1、D-D、sVCAM-1、ICAM-1水平升高与突发性耳聋的发生及预后有一定的关系。上述治疗联合检测将有助于临床更好地评价突发性耳聋患者的预后。

Pingyangmycin-regulated Expressions of Adhesion Molecules in Human Venous Malformation Endothelial Cells

Pingyangmycin (bleomycin A5 hydrochloride,PYM) is one of the anti-neoplastic agents which have been commonly used to treat venous malformations.However,the underlying mechanism by which PYM treats venous malformations remains poorly understood.It was reported that venous endothelial cells could recruit neutrophils via adhesion molecules (E-selectin,ICAM-1,ICAM-3,VCAM-1) during the acute/chronic inflammation and subsequent histological fibrosis after sclerotherapy with PYM.This study explored if the expression of E-selectin,ICAM-1,ICAM-3 and VCAM-1 in human venous malformation endothelial cells could be affected by PYM.HVMECs were cultured from human venous malformation tissue.Expressions of E-selectin,ICAM-1,ICAM-3 and VCAM-1 on HVMECs in response to PYM were analyzed by cell ELISA.The relative levels of mRNA expression in the cells were semi-quantified.The results showed that PYM up-regulated the expressions of E-selectin,ICAM-3,VCAM-1 and ICAM-1 in both time-and concentration-dependent manner.Our findings suggested that PYM could induce the expression of adhesion molecules in HVMECs,which might be a possible mechanism by which sclerotherapy by intralesional injection of PYM treats venous malformations.

索非布韦/达克拉韦治疗CHC患者血清血管性血友病因子和可溶性血管黏附因子1水平变化

目的本研究旨在探讨直接抗病毒药物治疗的慢性丙型肝炎(CHC)患者的疗效及其对血清细胞因子水平的影响。方法2020年6月~2022年12月我院诊治的38例CHC患者和38例丙型肝炎肝硬化患者,均接受索非布韦(SOF)、盐酸达克拉韦(DCV)和利巴韦林三联疗法治疗12周。采用RT-PCR法检测血清HCV RNA载量,采用ELISA法检测血清血管性血友病因子(vWF)、可溶性血管黏附因子1(sVCAM-1)和白细胞介素-6(IL-6)水平。结果本组丙型肝炎肝硬化患者快速病毒学应答、治疗结束病毒学应答和持续病毒学应答率分别为81.5%、89.5%和97.4%,与CHC组的89.5%、92.1%和100.0%比,无显著性差异(P>0.05);在治疗结束时,肝硬化组外周血白细胞和血小板计数分别为(4.7±0.9)×10^(9)/L和(139.5±42.1)×10^(9)/L,显著低于CHC组【分别为(6.8±2.2)×10^(9)/L和(275.6±65.3)×10^(9)/L,P<0.05】,而基于4因子的肝纤维化指数(FIB4)和天冬氨酸氨基转移酶/血小板计数指数(APRI)评分分别为(2.8±1.6)和(0.6±0.3),显著高于CHC组【分别为(0.7±0.9)和(0.2±0.1),P<0.05】;肝硬化组血清vWF和sVCAM-1水平分别(134.3±44.3)ng/mL和(36.6±14.9)ng/mL,显著高于CHC组【分别为(103.9±33.0)ng/mL和(18.7±8.9)ng/mL,P<0.05】。结论应用DAAs治疗HCV感染患者可获得良好的抗病毒疗效,且能有效改善血管内皮功能,其临床意义还有待进一步探讨。

血清ESM-1、sICAM-1与不稳定型心绞痛患者冠心病严重程度的关系及对急性心肌梗死发病的预测价值

目的分析不稳定型心绞痛(UAP)患者血清内皮细胞特异分子-1(ESM-1)、可溶性细胞间黏附分子-1(sICAM-1)与冠状动脉粥样硬化性心脏病(以下简称冠心病)严重程度的关系及对急性心肌梗死(AMI)发病的预测价值。方法选取2021年1月—2023年6月成都医学院第三附属医院收治的78例UAP患者。采用酶联免疫吸附试验检测ESM-1、sICAM-1水平。采用Gensini评估冠脉狭窄积分,依据患者狭窄积分将其分为轻中度组和重度组,分析不同病情严重程度患者ESM-1、sICAM-1水平。给予吸氧、抗血小板、抗凝、抗心肌缺血等治疗后,随访统计治疗6个月内AMI发生情况,将发生AMI患者纳入发生组,反之为未发生组。分析影响UAP患者发生AMI的因素及其对AMI发病的预测价值。结果重度组ESM-1、sICAM-1水平均高于轻中度组(P<0.05)。发生组Gensini评分、ESM-1、sICAM-1、NYHA分级均高于未发生组(P<0.05),SAQ评分低于未发生组(P<0.05)。多因素逐步Logistic回归分析结果表明,Gensini评分[OR=4.674(95%CI:1.598,13.675)]、SAQ评分[OR=4.802(95%CI:1.641,14.049)]、ESM-1[OR=5.573(95%CI:1.905,16.306)]和sICAM-1[OR=4.411(95%CI:1.508,12.904)]是UAP患者发生AMI的危险因素(P<0.05)。受试者工作特征曲线结果表明,Gensini评分、ESM-1、sICAM-1、SAQ评分及联合预测UAP患者发生AMI的敏感性分别为70.0%(95%CI:0.570,0.830)、75.0%(95%CI:0.621,0.882)、75.0%(95%CI:0.614,0.872)、70.0%(95%CI:0.562,0.841)、90.0%(95%CI:0.862,0.904);特异性分别为72.4%(95%CI:0.584,0.863)、75.7%(95%CI:0.618,0.898)、77.6%(95%CI:0.635,0.910)、67.0%(95%CI:0.548,0.823)、91.4%(95%CI:0.773,0.944)。Gensini评分、ESM-1、sICAM-1、SAQ评分联合预测UAP患者发生AMI的价值较高,曲线下面积>0.9。结论ESM-1、sICAM-1与冠心病严重程度有关,Gensini评分、ESM-1、sICAM-1、SAQ评分联合预测UAP患者发生AMI的效能较好。

抗磷脂综合征患者血清sVCAM-1、HMGB1与NLRP3炎症小体信号通路与血栓事件的关系

目的探讨抗磷脂综合征(APS)患者血清可溶性血管细胞黏附分子-1(sVCAM-1)、高迁移率族蛋白B1(HMGB1)与NOD样受体P3(NLRP3)炎症小体信号通路和血栓事件的关系。方法选择2021年6月至2023年6月上海市浦东新区人民医院收治的124例APS患者作为APS组和67例健康志愿者作为对照组。检测所有受检者的血清sVCAM-1、HMGB1水平、外周血单个核细胞的NLRP3信使核糖核酸(mRNA)和下游炎症因子白细胞介素(IL)-1β、IL-18水平。采用Pearson相关性分析血清sVCAM-1、HMGB1水平与外周血单个核细胞的NLRP3 mRNA表达、IL-1β和IL-18水平的相关性。根据是否发生血栓事件将APS患者分为血栓组(n=32)和非血栓组(n=90)。采用多因素Logistic回归分析APS患者发生血栓事件的影响因素。采用受试者工作特征曲线(ROC)分析sVCAM-1、HMGB1预测APS患者发生血栓事件的价值。结果APS组患者的血清sVCAM-1、HMGB1、IL-1β和IL-18水平以及外周血单个核细胞的NLRP3 mRNA分别为(806.35±204.75)μg/L、(125.42±24.57)μg/L、(13.62±3.09)pg/mL、(16.24±3.72)pg/mL、1.62±0.42,明显高于对照组的(395.12±77.24)μg/L、(35.01±10.30)μg/L、(3.15±0.67)pg/mL、(4.02±1.13)pg/mL、0.85±0.23,差异均有统计学意义(P<0.05);经Pearson相关性分析结果显示,APS组患者的血清sVCAM-1、HMGB1水平与外周血单个核细胞的NLRP3 mRNA以及血清IL-1β和IL-18水平均呈正相关(P<0.05);血栓组患者的血清sVCAM-1、HMGB1水平分别为(915.35±70.28)μg/L、(136.42±10.17)μg/L,明显高于非血栓组的(767.59±61.43)μg/L、(121.51±15.03)μg/L,差异均有统计学意义(P<0.05);经多因素Logistic回归分析结果显示,3个抗体阳性、高水平sVCAM-1、HMGB1是APS患者发生血栓事件的危险因素(P<0.05);经ROC分析结果显示,血清sVCAM-1联合HMGB预测APS患者血栓事件的曲线下面积(AUC)为0.885,高于单独预测(P<0.05)。结论APS患者血清sVCAM-1、HMGB1水平均增高,且与NLRP3及其下游炎症因子水平增加、血栓事件发生有关,NLRP3炎症小体信号通路的激活可能进一步促进血栓形成。

血清ESM-1、sICAM-1水平对帕金森病患者发生认知障碍的预测价值

目的:分析血清内皮细胞特异性分子-1(ESM-1)、可溶性细胞间黏附分子-1(sICAM-1)水平对帕金森病(PD)患者发生认知障碍的预测价值。方法:选取2020年8月至2022年12月该院收治的93例PD患者进行前瞻性研究,根据蒙特利尔认知评估量表(MoCA)评分将其分为认知正常组(n=50)和认知障碍组(n=43),另选取同期50名健康体检者,设为对照组。比较三组ESM-1、sICAM-1水平及MoCA评分,采用Pearson相关性分析血清ESM-1、sICAM-1水平与认知障碍的相关性,并绘制受试者工作特征(ROC)曲线分析血清ESM-1、sICAM-1单项及联合检测预测PD患者发生认知障碍的价值。结果:认知障碍组、认知正常组血清ESM-1水平、MoCA评分均低于对照组,且认知障碍组低于认知正常组,差异有统计学意义(P<0.05);认知障碍组、认知正常组血清sICAM-1水平均高于对照组,且认知障碍组高于认知正常组,差异有统计学意义(P<0.05);Pearson相关性分析结果显示,血清ESM-1水平与认知功能呈正相关(r>0,P<0.05);血清sICAM-1水平与认知功能呈负相关(r<0,P<0.05);ROC曲线结果显示,血清ESM-1、sICAM-1水平单项及联合预测PD患者发生认知障碍的曲线下面积分别为0.643、0.605、0.911,其中联合检测预测价值最高。结论:血清ESM-1水平与认知功能呈正相关,血清sICAM-1水平与认知功能呈负相关,且血清ESM-1、sICAM-1水平联合检测预测PD患者发生认知障碍的价值高于两者单项检测预测价值。

维持性血液透析患者血清sICAM-1、sVCAM-1水平和SOD活性及其与冠状动脉钙化的关系

目的:分析维持性血液透析(MHD)患者血清可溶性细胞间黏附分子1(sICAM-1)和可溶性血管细胞黏附分子1(sVCAM-1)水平及超氧化物歧化酶(SOD)活性,探讨其与冠状动脉钙化(CAC)的关系。方法:回顾性分析102例MHD患者(MHD组)的临床资料,另招募同期接受健康体检的74名志愿者(健康体检组)。MHD组患者经多层螺旋CT(MSCT)检查行CAC分数(CACs)评定,并将其分为无钙化组、轻度钙化组、中度钙化组和重度钙化组。比较2组研究对象一般资料和血清sICAM-1、sVCAM-1水平及SOD活性,分析不同钙化程度组患者血清中钙(Ca)、磷(P)、甲状旁腺激素(PTH)、sICAM-1和sVCAM-1水平及SOD活性。采用Pearson相关分析法分析MHD患者血清sICAM-1和sVCAM-1水平及SOD活性与CACs的相关性。结果:与健康体检组比较,MHD组患者血清sICAM-1和sVCAM-1水平均明显升高(P<0.01),SOD活性明显降低(P<0.01)。与无钙化组比较,轻度、中度和重度钙化组患者血清PTH、sICAM-1和sVCAM-1水平均明显升高(P<0.05),SOD活性均明显降低(P<0.05);中度和重度钙化组患者血清P水平均明显升高(P<0.05)。与轻度钙化组比较,中度和重度钙化组患者血清P、PTH、sICAM-1和sVCAM-1水平均明显升高(P<0.05),SOD活性均明显降低(P<0.05)。与中度钙化组比较,重度钙化组患者血清sICAM-1、sVCAM-1和P水平均明显升高(P<0.05),SOD活性明显降低(P<0.05)。MHD患者血清SOD活性与CACs呈负相关关系(r=-0.484,P<0.01),sICAM-1和sVCAM-1水平与CACs呈正相关关系(r=0.441,P<0.01;r=0.561,P<0.01)。结论:MHD患者血清sICAM-1和sVCAM-1水平及SOD活性异常,并且随着SOD活性降低和sICAM-1及sVCAM-1水平升高,MHD患者的CAC程度加重。

结核性脑膜炎患者血清sVCAM-1、sRAGE水平与病情严重程度及预后的关系

目的探讨血清可溶性血管细胞黏附分子1(sVCAM-1)和可溶性晚期糖基化终末产物受体(sRAGE)的表达与结核性脑膜炎(TBM)患者病情严重程度及预后的关系。方法选取2020年9月至2023年5月湖北省宜昌市第三人民医院收治的157例TBM患者为研究组,另外选取同期体检的151例健康者为对照组。根据入院时TBM分期将患者分为Ⅰ期组、Ⅱ期组和Ⅲ期组,根据TBM患者出院时改良Rankin量表(mRS)分为预后良好组和预后不良组。采用酶联免疫吸附试验(ELISA)检测血清sVCAM-1和sRAGE水平;采用多因素Logistic回归分析TBM患者预后的影响因素;采用受试者工作特征(ROC)曲线分析血清sVCAM-1和sRAGE对TBM患者预后的预测价值。结果与对照组比较,研究组血清sVCAM-1和sRAGE水平均明显升高,差异均有统计学意义(t=23.819、25.965,P<0.05)。Ⅰ、Ⅱ、Ⅲ期组分别为34、76、47例。Ⅲ期组血清sVCAM-1和sRAGE水平高于Ⅱ期组、Ⅰ期组,且Ⅱ期组高于Ⅰ期组,差异均有统计学意义(P<0.05)。预后良好组、预后不良组分别为108、49例。与预后良好组比较,预后不良组血清sVCAM-1和sRAGE水平升高,以及TBM分期为Ⅲ期、有意识障碍和有外周神经功能障碍的患者比例明显升高,差异有统计学意义(t/χ^(2)=-6.123、-8.879、12.316、8.584、9.390,P<0.05)。多因素Logistic回归分析结果显示,血清sVCAM-1、sRAGE水平升高及TBM分期为Ⅲ期、有意识障碍、有外周神经功能障碍均是TBM患者预后不良的独立危险因素(OR=1.458、1.523、2.673、2.157、3.714,P<0.05)。ROC曲线分析结果显示,血清sVCAM-1水平预测TBM患者预后不良的曲线下面积(AUC)为0.831(95%CI:0.763~0.886)、灵敏度为69.39%,血清sRAGE水平预测TBM患者预后不良的AUC为0.844(95%CI:0.778~0.897)、灵敏度为71.43%,血清sVCAM-1和sRAGE水平联合检测预测TBM患者预后不良的AUC(0.914)明显大于两项单独预测的AUC(Z=2.789,P=0.005;Z=2.782,P=0.005)。结论sVCAM-1和sRAGE水平在TBM患者血清中升高,且与患者病情严重程度和预后有关,血清sVCAM-1和sRAGE水平联合检测对TBM患者预后不良具有较高的预测价值。

Ubiquitin Reduces Expression of Intercellular Adhesion Molecules and Tumor Necrosis Factor-α in Lung Tissue of Experimental Acute Lung Injury

Background Intercellular adhesion molecule-1 (ICAM-1) and vascular cell adhesion molecule-1 (VCAM-1) are two important cytokines in inflammatory response, which may induce rolling and adhesion of both leukocytes and lymphocytes, while modulating vascular permeability at the same time. These adhesion molecules usually serve as surrogate markers of activation and injury of vascular endothelial cells. Tumor necrosis factor-α (TNF-α) is a key factor to induce the expression and production of the above cell adhesion molecules. However, it remains to be elucidated whether exogenous ubiquitin exerts any effect on the cytokines in sepsis-induced ALI. Methods Sixty mice were devided randomly into five groups with twelve mice in each group, i.e. CLP group, SHAM group, UB1 group (10 mg/kg), UB2 group (5 mg/kg) and UB3 group(1 mg/kg). Mice of SHAM group underwent sham operation, and other four groups underwent CLP. Six hours after surgery, mice of three UB groups received ubiquitin by caudal vein injection while CLP and SHAM group received vehicle. Seven hours after surgery, blood and lungs of all mice were collected. ICAM-1, VCAM-1 and TNF-α level of 9% lung homogenate and serum TNF-α level were measured by ELISA. Results Pulmonary ICAM-1, VCAM-1 and TNF-α level of three UB groups were lower than CLP and SHAM group, and there were several comparisons with a statistically significant difference. Serum TNF-α level of three UB groups were slightly lower than CLP group, but far higher than SHAM group. Pulmonary ICAM-1 level, VCAM-1 level and serum TNF-α level of UB3 group were lower than UB1 and UB2 group, and there was a significant difference in VCAM-1 between UB3 and UB1 group. Pulmonary TNF-α level of UB3 group was slightly higher than UB1 and UB2 group.