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.

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.

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.

老年冠心病患者血清NO、sICAM-1、sVCAM-1、脂联素、GDF-15的水平变化分析

目的探讨老年冠心病患者血清一氧化氮（NO）、可溶性细胞间黏附分子-1（sICAM-1）、可溶性血管内皮细胞黏附分子-1（sVCAM-1）、脂联素、生长分化因子-15（GDF-15）的水平变化。方法选取我院2014年6月-2016年10月经冠脉造影检测确诊的老年冠心病患者140例作为冠心病组，其中稳定性心绞痛（SAP）患者59例、不稳定性心绞痛（UAP）患者48例、急性心肌梗死（AMI）患者33例，另选40例健康老年人为对照组。结果血清NO、脂联素比较，冠心病组低于对照组（P〈0．05）；血清NO、脂联素比较，SAP组高于UAP组和AMI组（P〈0．05），UAP组高于AMI组（P〈0．05）；血清sICAM-1、sVCAM-1、GDF-15比较，SAP组测定值小于uAP组、AMI组（P〈0．05），UAP组测定值小于AMI组（P〈0．05）；血清NO、脂联素比较，单支病变患者的测定值大于双支病变组、三支病变组（P〈0．05），双支病变组的测定值大于三支病变组（P〈0．05）；血清sICAM-1、sVCAM-1、GDF-15的水平比较，单支病变组测定值小于双支病变组、三支病变组（P〈0．05），双支病变组测定值小于三支病变组（P〈0．05）。结论老年冠心病患者血清NO、sICAM-1、sVCAM-1、脂联素、GDF-15水平发生显著变化，并且与冠心病患者的冠脉病变程度相关。

Change of hs-CRP,sVCAM-1,NT-proBNP levels in patients with pregnancy-induced hypertension after therapy with magnesium sulfate and nifudipine

Objective:To investigate the change of the hs-CRP,sVC AM-1,NT-proBNP levels of the patients with pregnancy-induced hypertension(PIH) syndrome.Methods:A total of 200 patients with PIH were divided into mild,moderate and severe group,and 50 healthy pregnancy patients served as the control group.The serum sVCAM-1 levels were detected by enzyme-linked immunosorbent assay,hs-CRP were detected by immunity transmission turbidity,and NT-proBNP levels were determined by the colloidal gold method.Patients were treated with magnesium sulfate and nifudipine and the contrastive analysis was performed before and after treatment.And the pathological changes in placental of PIH patients were delected by hematoxylin-eosin staining at the same time.Results:The hs-CRP,sVCAM-l,NT-proBNP levels of patients in the mild, moderate and severe PHI group were significantly higher than that in the control group(P<0.05). The hs-CKP,sVCAM-l,NT-proBNP levels in the severe group were significantly higher than the mild group and the moderate group,the difference was statistically significant(P<0.05).The hsCRP,sVCAM-l,NT-proBNP of the moderate group were significantly higher than the mild group(P<0.05).There was a positive correlation between hs-CRP,sVCAM-1,NT-proBNP expression levels and the degree of the PIH.The expression of hs-CRP,sVCAM-1,NT-proBNP levels of the moderate and the severe group were significantly decreased(P<0.05).The number of placental villi and interstitial blood vessel in the moderate and severe PIH group were significantly less than the control group(P<0.05).Conclusions:The increased levels of serum hs-CRP,sVCAM-1, NT-proBNP may be involved in the process of vascular endothelial cell injury of the PIH,and the hs-CRP,sVCAM-1,NT-proBNP can be used as the auxiliary index for diagnosis of PIH and determination of PIH severity.

Expressions of ICAM-1 and its mRNA in sera and tissues of patients with hepatocellular carcinoma

INTRODUCTIONThe increased expression of ICAM-1 on a widerange of cells and in the sera of patients withmalignancies, chronic liver diseases andinflammation diseases has been described since thelate 1980s[1-22]. Recently rapid progress in studieson expression of ICAM-1 in patients withhepatocellular carcinoma ( HCC ) have beenachieved, including clinical and experimentalresearches[23-31].

The serum levels of MMP-9, sICAM-1, CRP and WBC increased in patients with acute coronary syndrome

Objective：To evaluate the association of the peripheral levels of the defined inflammatory markers with different types of acute coronary syndrome （ACS） and stable angina, and the role inflammation played in the pathogenesis of ACS. Methods ：For understanding the variation of serum concentrations of matrix metalloproteinase-9 （MMP-9）, soluble intercellular adhesion molecule-1 （sICAM-1） ,C-reactive protein （CRP）, and white blood cell count （WBC） and their association with ACS, 90 patients with coronary heart disease （CHD） and 30 healthy volunteers were recruited. The enrolled people were assigned into four equal groups, including acute myocardial infarction （AMI） group, unstable angina pectoris（UAP） group, stable angina pectoris（SAP） group and healthy control group. The serum levels of MMP-9 and sICAM-1 were measured with ELISA kits, CRP were measured with im munoturbidimetric assay, and WBC number were assessed all before any treatment was administrated. Results： （1）The serum levels of MMP-9 ,sICAM-1 ,CRP and WBC in the patients with ACS were significantly higher than those in the control group （P 〈 0.01 ）. （2）Compared with control group, patients with SAP only had higher serum level of sICAM-1 （P 〈 0.01 ）. While the levels of MMP-9, CRP, and WBC had no significant difference between them （P 〉 0.05 all）. （3）Significant positive correlation between the serum levels of MMP-9 and sICAM-1 and CRP and WBC all were observed in the patients with ACS （P 〈 0.05）. Conclusion： The elevation of serum concentrations of inflammatory markers including MMP-9, slCAM-1, CRP and WBC were associated with initiation and progression of ACS, and they may help predicting cardiovascular events.

Increased Risk of Neonatal Pneumonia in Pregnant Women with Atypical Pre-Labor Rupture of Membrane Assessed at Pregnancy Week 39

Purpose: Neonatal pneumonia is a major newborn disease with a high morbidity rate. We aimed to evaluate whether atypical prelabor rupture of membranes (PROM) is a high-risk factor for causing neonatal pneumonia in a prospective real-world study. Patients and Methods: A total of 250 pregnant women at pregnancy week 39 were non-selectively recruited. All were examined by PROM and neonatal pneumonia related clinical, bedside and lab tests, including body temperature, blood pressure, increased vagina discharge, posterior vault pooling, abdominal tenderness, WBC count, nitrazine test, amniotic fluid index, Leakection (a sICAM-1 based lateral flow immunoassay) and vagina streptococcus examinations. Increased vagina discharge with a Leakection positivity was adopted as a working criterium for identifying atypical PROM. Neonatal pneumonia was diagnosed based on the clinical presentation and lab tests. Results: Twenty cases of neonatal pneumonia (8.0%) were diagnosed after the deliveries of the 250 pregnant women. In these neonatal pneumonia cases, 12 (16.7%) occurred in 72 deliveries with atypical PROM, 2 (16.7%) in 12 deliveries with typical PROM, and 6 (3.6%) in 166 deliveries with non-PROM. Conclusion: In this real-world study, we find that a systematic screening at pregnancy week 39 was very meaningful in revealing atypical PROM. Moreover, atypical PROM is a major risk factor for neonatal pneumonia. Therefore, an early diagnosis and intervention on atypical PROM could potentially reduce the occurrence of neonatal pneumonia.

磷酸二酯酶4抑制剂Hemay005对角质形成细胞炎性因子产生的影响

目的为了探讨磷酸二酯酶4抑制剂Hemay005对体外培养的角质形成细胞株HaCaT细胞炎性因子产生的影响。方法分别用重组人肿瘤坏死因子-α(rhTNF-α)、重组人干扰素-γ(rhIFN-γ)和312 nm窄波UVB诱导,采用MTT法检测Hemay005对HaCaT细胞增殖的影响,用ELISA法检测其对HaCaT细胞白细胞介素(IL)-8、sICAM-1和肿瘤坏死因子(TNF)-α产生的影响。结果 Hemay005对HaCaT细胞增殖及25μg/L rhTNF-α诱导的IL-8产生无明显影响,但能剂量依赖性地抑制1 000 U/mL rhIFN-γ诱导的HaCaT细胞产生sICAM-1和124.2 mJ/cm2窄波UVB照射引起的HaCaT细胞产生TNF-α。结论 Hemay005可通过抑制角质形成细胞炎症因子的表达发挥抗炎作用。

Early detection of hepatocellular carcinoma co-occurring with hepatitis C virus infection: A mathematical model

AIM: To develop a mathematical model for the early detection of hepatocellular carcinoma (HCC) with a panel of serum proteins in combination with α-fetoprotein (AFP).METHODS: Serum levels of interleukin (IL)-8, soluble intercellular adhesion molecule-1 (sICAM-1), soluble tumor necrosis factor receptor II (sTNF-RII), proteasome, and β-catenin were measured in 479 subjects categorized into four groups: (1) HCC concurrent with hepatitis C virus (HCV) infection (n = 192); (2) HCV related liver cirrhosis (LC) (n = 96); (3) Chronic hepatitis C (CHC) (n = 96); and (4) Healthy controls (n = 95). The R package and different modules for binary and multi-class classifiers based on generalized linear models were used to model the data. Predictive power was used to evaluate the performance of the model. Receiver operating characteristic curve analysis over pairs of groups was used to identify the best cutoffs differentiating the different groups.RESULTS: We revealed mathematical models, based on a binary classifier, made up of a unique panel of serum proteins that improved the individual performance of AFP in discriminating HCC patients from patients with chronic liver disease either with or without cirrhosis. We discriminated the HCC group from the cirrhotic liver group using a mathematical model (-11.3 + 7.38 × Prot + 0.00108 × sICAM + 0.2574 × β-catenin + 0.01597 × AFP) with a cutoff of 0.6552, which achieved 98.8% specificity and 89.1% sensitivity. For the discrimination of the HCC group from the CHC group, we used a mathematical model [-10.40 + 1.416 × proteasome + 0.002024 × IL + 0.004096 × sICAM-1 + (4.251 × 10-4) × sTNF + 0.02567 × β-catenin + 0.02442 × AFP] with a cutoff 0.744 and achieved 96.8% specificity and 89.7% sensitivity. Additionally, we derived an algorithm, based on a binary classifier, for resolving the multi-class classification problem by using three successive mathematical model predictions of liver disease status.CONCLUSION: Our proposed mathematical model may be a useful method for the early detection of different statuses of liver disease co-occurring with HCV infection.

血清PCT与sICAM-1和sVCAM-1在慢性肾炎患者细菌感染中的应用

目的探讨血清降钙素原(PCT)、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)在慢性肾炎合并细菌感染中的应用价值。方法选取2016年1-12月在医院住院治疗的慢性肾炎合并细菌感染为感染组与未合并细菌感染患者为无感染组,各50例,对感染部位分泌物进行细菌培养,检测两组血清sICAM-1、sVCAM-1,PCT。结果 50例患者共培养出病原菌58株,其中革兰阴性菌34株占58.62%,革兰阳性菌24株占41.38%,感染病原菌主要为肺炎克雷伯菌、大肠埃希菌、金黄色葡萄球菌;感染组入院时血清PCT、sICAM-1、sVCAM-1分别为(1.07±0.30)ng/ml、(336.97±56.92)ng/ml、(548.78±82.57)ng/ml,无感染组分别为(0.04±0.01)ng/ml、(246.81±63.05)ng/ml、(432.10±77.52)ng/ml,差异有统计学意义(P<0.05);感染组感染控制后血清PCT、sICAM-1、sVCAM-1水平分别为(0.07±0.02)ng/ml、(260.12±60.11)ng/ml、(438.22±72.31)ng/ml低于感染控制前(1.07±0.30)ng/ml、(336.97±56.92)ng/ml、(548.78±82.57)ng/ml,差异有统计学意义(P<0.05)。结论慢性肾炎合并细菌感染后血清PCT、sICAM-1、sVCAM-1水平会出现升高,感染控制后以上指标水平会随之下降,检测血清PCT、sICAM-1、sVCAM-1用于慢性肾炎合并细菌感染的诊断及治疗疗效观察有一定临床价值。

高压电烧伤对大鼠小肠浆膜表面微循环灌流量的影响及己酮可可碱的干预作用

目的探讨高压电烧伤对大鼠小肠浆膜表面微循环灌流量的影响以及己酮可可碱（PTX）的干预作用。 方法将180只SD大鼠按随机数字表法分为假伤组、单纯电伤组和治疗组，每组60只。以大鼠左前肢近心端外侧为电流入口，右后肢近心端外侧为电流出口，单纯电伤组和治疗组大鼠用调压器及实验变压器造成入口和出口处各1 cm×1 cm的高压电烧伤创面；假伤组大鼠接相同装置但不通电致假伤。伤后2 min，假伤组和单纯电伤组大鼠腹腔注射生理盐水2 mL，治疗组大鼠腹腔注射50 mg/mL PTX注射液2 mL。伤前15 min及伤后5 min、1 h、2 h、4 h、8 h，每组各取10只大鼠，经心脏采血分离血清，用ELISA法检测血清可溶性血管细胞黏附分子1（sVCAM－1）含量；用布莱德多项投影显微镜系统检测肠系膜微静脉白细胞黏附数；用激光多普勒血流灌注成像仪检测小肠浆膜表面微循环灌流量。对数据行析因设计方差分析和LSD检验。 结果（1）单纯电伤组大鼠伤后5 min、1 h、2 h、4 h、8 h血清sVCAM－1含量分别为（8 502±1 158）、（11 793±3 310）、（9 960±2 146）、（9 708±1 429）、（7 292±1 386）ng/mL，均高于假伤组的（1 897±946）、（1 882±940）、（1 882±938）、（1 888±946）、（1 884±942）ng/mL和治疗组的（6 840±1 558）、（6 742±2 465）、（5 625±2 593）、（2 373±1 463）、（5 187±2 797）ng/mL（P值均小于0.001）。单纯电伤组大鼠伤后各时相点、治疗组大鼠伤后各时相点（除伤后4 h外）血清sVCAM－1含量均高于组内伤前15 min（P值均小于0.001）。（2）单纯电伤组大鼠伤后各时相点肠系膜微静脉白细胞黏附数均多于假伤组和治疗组（P值均小于0.001）。单纯电伤组和治疗组大鼠伤后各时相点肠系膜微静脉白细胞黏附数均多于组内伤前15 min（P值均小于0.001）。（3）单纯电伤组大鼠伤后各时相点小肠浆膜表面微循环灌流量低于假伤组和治疗组（P值均小于0.001）。单纯电伤组和治疗组大鼠伤后各时相点小肠浆膜表面微循环灌流量均低于组内伤前15 min（P值均小于0.001）。 结论高压电烧伤可提高大鼠血清sVCAM－1含量、增加肠系膜微静脉白细胞黏附数，减少小肠浆膜表面微循环灌流量。PTX通过抑制sVCAM－1的分泌，减少肠系膜微静脉白细胞黏附数，从而减轻高压电烧伤微循环障碍。