Adhesion molecules in untreated inflammatory arthritis: synovial expression and levels in synovial fluid and serum [corrected] [published erratum appears in QJM 1996 Jul;89(7):559]

Adhesion molecules play a critical role in regulating leucocyte migration at sites of inflammation. The relationship of soluble forms in serum or synovial fluid (SF) to synovial membrane expression in inflammatory arthritis is controversial. We examined soluble intercellular adhesion molecule-1 (ICAM-1), vascular cell adhesion molecule-1 (VCAM-1) and E-selectin levels in matched serum and SF, and their relationship to expression in synovium obtained at the same time in 13 patients with previously untreated inflammatory arthritis. Serum- soluble (s)ICAM-1 correlated with sedimentation rate (T = 0.45), Ritchie articular index (T = 0.47) and SF sICAM-1 (T = 0.48), and SF sICAM-1 correlated with membrane ICAM-1 expression (p < 0.02). sE- selectin and sVCAM-1 levels were unrelated to disease activity or membrane expression. Membrane E-selectin expression correlated inversely with ICAM-1 expression (T = -0.57) and serum sICAM-1 (T = - 0.54). Serum sE-selectin correlated inversely with membrane ICAM-1 expression (T = -0.55). The correlations observed between ICAM-1 in serum, SF, synovium and disease activity suggest that ICAM-1 could be a useful target for immunotherapy. The inverse relationship of ICAM-1 and E-selectin suggest important differences in regulation and pathogenetic roles.      

Circulating soluble adhesion molecules ICAM-1 and VCAM-1 and their association with clinical outcome, troponin T and C-reactive protein in patients with acute coronary syndromes

OBJECTIVES: The aim of this study was to compare concentrations of soluble intercellular adhesion molecule (ICAM-1) and vascular cell adhesion molecule (VCAM-1) in patients with coronary artery disease and healthy control and to evaluate the usefulness of the inflammatory markers as predictors of adverse prognosis in patients with acute coronary syndromes (ACS). DESIGN AND METHODS: ELISA was used to measure sICAM-1 and sVCAM-1 levels in 75 patients with ACS, 36 patients with stable angina pectoris (SAP) and 25 healthy subjects. hsCRP was measured with immunoturbidimetric assay, cardiac troponin T-with electrochemiluminescence immunoassay. RESULTS: All soluble ICAM-1 and VCAM-1 significantly discriminated between patients with ACS and SAP (p=0.014 and 0.05, respectively) and control subjects (p<0.001 and 0.05). During the 6-month follow-up of the patients with ACS, there were 28 major cardiac events (37.3%). The odds ratio associated with the highest value of sVCAM-1 was 4.62 (95% CI 1.8-11.4, p=0.0009) without adjustment and remained significantly elevated after adjustment for cTnT (RR 3.93, 1.5-10, p=0.04) and hsCRP (RR 2.22, 0.8-5.7, p=0.05). In contrast, an elevated level of sICAM-1 was not associated with future coronary risk after adjustment for cTnT and hsCRP. CONCLUSIONS: In patients with acute coronary syndromes, VCAM-1 serum levels powerfully predict an increased risk for subsequent cardiovascular events and extend the prognostic information gained from traditional biochemical markers.     

细胞间粘附分子和嗜酸细胞趋化因子在哮喘患儿血清中的表达及意义

目的探讨支气管哮喘患儿血清可溶性细胞间粘附分子-1（sICAM-1）、血管内皮细胞间粘附分子-1（sVCAM-1）、嗜酸细胞趋化因子（Eotaxin）水平的相关性及临床意义。方法采用ELISA双抗体夹心法对38例哮喘患儿和36例正常对照组儿童血清sICAM、sVCAM-1、Eotaxin进行检测。结果哮喘患儿血清sICAM-1、sVCAM-1、Eotax-in水平均较对照组显著升高（P〈0．01）,而哮喘发作期患儿与缓解期患儿之间差异也具有统计学意义（P〈0．05）,重度发作患儿较轻、中度发作升高明显（P〈0．05）。哮喘患儿血清sICAM-1、sVCAM-1水平与Eotaxin水平之间存在正相关（r=0．632,P〈0．01）。结论sICAM-1、sVCAM-1、Eotaxin参与了哮喘的病理过程,其水平的高低可能与哮喘病情的严重程度有关,可视为哮喘气道炎症诊断和观察病情活动性的重要指标。     

Statins reduce oxidized low-density lipoprotein levels,but do not alter soluble intercellular cell-adhesion molecule-1 and vascular cell-adhesion molecule-1 levels in subjects with hypercholesterolaemia

ICAM-1 (intercellular cell-adhesion molecule-1) and VCAM-1 (vascular cell-adhesion molecule-1) are cell-adhesion molecules that have an essential role in monocyte recruitment. In the present study we have investigated (i) whether statins reduce soluble levels of ICAM-1 (sICAM-1) and VCAM-1 (sVCAM-1), and the relationship between resistance of LDL (low-density lipoprotein) to in vitro oxidation and sICAM-1 and sVCAM-1 levels. Whole blood samples were obtained from 55 healthy non-smoking adults (aged 35-65 years) with moderate (LDL-cholesterol, 3.4-4.9 mmol/l) hypercholesterolaemia participating in a randomized double-blinded, 8-week trial comparing pravastatin (40 mg), simvastatin (20 and 80 mg) and placebo. sICAM-1 levels (means+/-S.D.) increased slightly from 12.2+/-4.2 to 13.6+/-4.2 ng/ml with statin therapy, whereas, among placebo-assigned subjects, levels were unchanged (11.8+/-5.0 and 11.8+/-3.9 ng/ml). sVCAM-1 increased from 18.9+/-10.1 to 21.1+/-7.4 ng/ml among those on active therapy and slightly declined with placebo assignment (19.8+/-8.8 to 19.4+/-6.4 ng/ml). Lag times increased with statin therapy from 74.3+/-39.8 min to 98.3+/-57.8 min ( P =0.003), and were unchanged in the placebo group (from 103.1+/-61.1 to 90.8+/-65.9 min; P =0.48). There were no significant changes between statin and placebo therapy for sICAM-1, sVCAM-1 or lag times ( P =0.09, 0.16 and 0.067 respectively). Changes in sICAM-1 and sVCAM-1 were not correlated with the change in lag times. In contrast with the known effects of oxidized LDL on gene activation of ICAM-1 and VCAM-1, lag times did not correlate with sICAM-1 and sVCAM-1. Statin therapy improved lag times, but has no effect on sICAM-1 or sVCAM-1 levels.     

Circulating endothelial adhesion molecules (sE-selectin, sVCAM-1 and sICAM-1) during rHuG-CSF-stimulated stem cell mobilization

The role of leukocyte-endothelial cell interactions during granulocyte colony-stimulating factor (G-CSF)-induced stem cell mobilization is unclear. To examine endothelial activation during this process, we determined levels of circulating endothelial adhesion molecules in healthy donors undergoing G-CSF-mobilized stem cell collection. Plasma levels of soluble (s) E-selectin, soluble intercellular adhesion molecule-1 (sICAM-1), and soluble vascular cell adhesion molecule-1 (sVCAM-1) were serially determined by enzyme-linked immunosorbent assays in 10 healthy donors during G-CSF-stimulated stem cell mobilization. There was a significant increase in plasma levels of all three endothelial adhesion molecules (sE-selectin, p = 0.01; sICAM-1, p = 0.003; sVCAM-1, p = 0.0002) between day 1 and day 5 of G-CSF stimulation, but only sVCAM-1 concentrations exceeded the range obtained from unstimulated controls in all stem cell donors. Increases of sCAM were accompanied by increased numbers of white blood cells and CD34(+) progenitors in peripheral blood. G-CSF-stimulated peripheral blood progenitor cells (PBPC) mobilization results in increased levels of circulating endothelial adhesion molecules that were most evident for VCAM-1 molecules. Because soluble VCAM-1 remains active in binding to the VLA-4 receptor on CD34(+) cells, it may reduce stem cell adhesiveness to endothelial cells and to bone marrow microenvironment.     

Longitudinal course and clinical significance of TGF-beta1, sL- and sE-Selectins and sICAM-1 levels during severe acute stress in children

OBJECTIVES: To elucidate the potential role of circulating levels of transforming growth factor-beta1 (TGF-beta1), soluble intercellular adhesion molecule-1 (sICAM-1), soluble L- and sE-Selectins (sL- and sE-Selectins) in children with sepsis, traumatic brain injury (TBI) or acute respiratory distress syndrome (ARDS). DESIGN AND METHODS: Levels of TGF-beta1, sICAM-1, L- and sE-Selectins were determined using solid-phase sandwich enzyme-linked immunosorbent assay in plasma of 10 patients with sepsis, 10 patients with TBI, 10 patients with ARDS, compared to 10 ventilated controls with chronic illness but not in acute stress, on days 1, 3, 5, 7 and 10. RESULTS: The highest values of sICAM-1 were observed in patients with TBI (p<0.001) and those of sE-Selectin in patients with sepsis (p=0.0001). Patients in the control group did not show an elevation of sE-Selectin and sICAM-1 levels longitudinally. Increased levels of measured molecules (TGF-beta1, p<0.02, sE-Selectin, p<0.02, sL-Selectin, p=0.06, sICAM-1, p<0.03) were demonstrated among survivors in the sepsis and ARDS groups of patients and were positively correlated with length of stay (p<0.04) and mechanical ventilation (p<0.001). CONCLUSIONS: A sustained increase of adhesion molecules occurs during acute stress in children which may contribute to morbidity in patients with sepsis (sE-Selectin) or traumatic brain injury (sICAM-1). Suppression of the expected response of sE-Selectins, s-ICAM-1 and TGF-beta1 is associated with poor outcome.     

不稳定型心绞痛患者血清内脏脂肪素水平的变化及与血管内皮细胞黏附分子的相关性

目的观察和分析不稳定型心绞痛(UA)患者血清内脏脂肪素(Visfatin)水平的变化及与血管内皮细胞黏附分子的相关性。方法选取100例UA患者、100例稳定型心绞痛(SA)患者及50名健康志愿者作为研究对象,分别设为UA组、SA组及对照组。对3组研究对象的血清Visfatin、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)水平进行检测和比较。结果 UA组患者的血清Visfatin、sVCAM-1、sICAM-1水平均显著高于SA组或对照组(P0.05)。直线相关分析结果显示,UA组患者的血清Visfatin水平与体质量指数(BMI)、腰围、甘油三酯(TG)水平、sVCAM-1、sICAM-1水平均具有相关性(P0.05)。多元线性回归结果显示,UA组患者血清Visfatin水平与腰围、sVCAM-1、sICAM-1水平具有相关性(P0.05)。结论 UA患者表现为血清Visfatin水平的显著上升,其水平与血清sVCAM-1、sICAM-1水平具有相关性。     

急性心肌梗死患者溶栓治疗前后血清sICAM-1、sVCAM-1、IL-6及IL-8的动态观察

目的探讨急性心肌梗死 (AMI)溶栓治疗前后血清可溶性细胞间粘附分子 1(sICAM 1)、可溶性血管细胞粘附分子 1(sVCAM 1)、白细胞介素 6 (IL 6 )、白细胞介素 8(IL 8)的动态变化。方法采用ELISA法观察 2 6例经尿激酶溶栓治疗及 2 2例常规治疗的AMI患者治疗前及治疗后 1、2、5、7、14天血清sICAM 1、sVCAM 1、IL 6、IL 8的动态变化并进行比较分析。结果治疗前两组间sICAM 1、sVCAM 1、IL 6、IL 8无差异 ,治疗后各指标变化趋势相似 ,但溶栓组sVCAM 1在治疗后第 5、7、14天显著高于对照组 (P <0 .0 1) ;而sICAM 1在第 5、7天明显低于对照组 (P <0 .0 1) ,IL 6在治疗后第 1、2、7天显著低于对照组 (P <0 .0 1) ,IL 8在治疗后第 1、7天明显低于对照组 (P <0 .0 1)。结论sICAM 1、sVCAM 1、IL 6、IL 8均可作为溶栓监测指标 ,其动态改变及作用影响AMI的发生、发展变化。溶栓治疗可减轻AMI的病理损伤 ,缩短病程。     

雷公藤红素对人急性早幼粒白血病荷瘤模型小鼠黏附分子及细胞周期的影响

目的:观察雷公藤红素对人急性早幼粒白血病(APL)荷瘤模型小鼠黏附分子及细胞生物学特性的影响.方法:将18只SCID beige小鼠尾静脉注射NB4细胞株(5x106/只)以构建人APL荷瘤模型,然后随机分为荷瘤组、三氧化二砷组和雷公藤红素组,另取6只不造模并设为对照组;3周后向对照组和荷瘤组腹腔注射生理盐水并进行对照...     

运动训练对慢性心力衰竭患者内皮炎性相关因子的影响

目的探讨运动训练对老年慢性心力衰竭患者血管内皮功能炎性标志物的影响,具体包括粒细胞吞噬细胞克隆刺激因子(GMCSF)、吞噬细胞吸附蛋白(MCP1)、可溶性细胞内吸附分子1(sICAM1)及可溶性血管吸附分子1(sVCAM1)等在治疗前、后的变化情况。方法共选取48例心功能稳定的慢性心力衰竭患者,将其随机分为2组训练组(n=24)及休息组(n=24),2组患者均给予内科常规治疗,训练组患者在此基础上同时进行运动训练;并分别在治疗前及治疗12周后对2组患者进行GMCSF、MCP1、sICAM1、sVCAM1及6min步行试验等检查。结果运动训练可以显著降低训练组患者外周炎性标志物的浓度(均P<0.05),增加6min步行距离(P<0.05);休息组患者治疗12周后与入院时比较,上述各指标间差异均无统计学意义(P>0.05)。结论运动训练可以显著减轻慢性心力衰竭患者的炎性反应,并改善其运动功能。     

全反式维甲酸对外周血干细胞移植患者骨髓基质细胞黏附分子表达及黏附力的影响

本研究探讨全反式维甲酸（all—transretinoic acid，ATRA）能否促进外周血造血干细胞移植（peripheral blood stem cell transplantation，PBSCT）预处理致伤的骨髓基质细胞（bonemarrow stromal cells，BMSC）功能的恢复。用流式细胞术检测27例造血干细胞移植患者预处理前后BMSC表面细胞间黏附分子-1（intercellular adhesion molecule—1，ICAM-1）和血管黏附分子-1（vascular adhesion molecule-1，VCAM-1）表达，用放射免疫法测定BMSC培养上清液中可溶性ICAM—1（sICAM-1）水平以及BMSC对CD34^＋细胞的黏附率，并检测浓度分别为0、01、0．1、1μmol/L的ATRA作用后上述指标的动态变化。结果显示：PBSCT预处理后，BMSC表面ICAM-1和VCAM-1的表达以及BMSC培养上清液中sICAM-1的表达水平降低，BMSC对CD34^＋细胞黏附率降低，而在ATRA作用后，BMSC表面ICAM—1表达增加，培养上清液中sICAM-1水平升高，BMSC对CD34^＋细胞的黏附率增加．但VCAM-1表达变化不明显。结论：全反式维甲酸可部分修复受损的BMSC的黏附功能，有助于促进骨髓造血重建。     

Comparison of soluble ICAM-1, VCAM-1 and E-selectin levels in patients with episodic cluster headache and giant cell arteritis

The pathophysiology of cluster headache (CH) is supposed to involve the lower posterior part of the hypothalamus, the trigeminal nerve, autonomic nerves and vessels in the orbital/retro-orbital region. The exact connection of this hypothalamic–trigemino–autonomic–vascular axis is not fully understood. The presence of inflammation in the perivascular tissue of the retro-orbital region has been presented as a possible mechanism behind the pain and the sympatheticoplegia sometimes observed during headache attacks. In a previous study we found neither increased levels of erythrocyte sedimentation rate, C-reactive protein or acute-phase reactants nor clinical signs of a generalized inflammatory disorder. However, these tests may not be sensitive enough to detect a focal inflammatory process in the retro-orbital region. In the present study, we analysed serum levels of three soluble adhesion molecules; soluble intercellular adhesion molecule-1 (sICAM-1), soluble vascular cell adhesion molecule-1 (sVCAM-1) and soluble E-selectin (sE-selectin) in patients with episodic CH and in patients with biopsy-positive giant cell arteritis (GCA), a known vasculitic disorder of large and medium-sized arteries. A control group of healthy volunteers was also included. Within the CH group, sICAM-1, sVCAM-1 and sE-selectin showed an increasing trend in remission compared with the active CH period, but the difference was statistically significant for sE-selectin only. The mean sICAM-1 value was higher in patients with active GCA than in CH patients during the active cluster period. Compared with the healthy control group, the mean levels of soluble adhesion molecules in CH patients also tended to be higher, but statistically significantly so only for sVCAM-1. We hypothesize that CH is not a vasculitic disorder of the medium-sized arteries, but CH patients may have an immune response that reacts differently from that of healthy volunteers.     

Increased levels of markers of vascular inflammation in patients with coronary heart disease

Elevated levels of soluble cell adhesion molecules (sCAMs), inflammatory cytokines and C-reactive protein (CRP) have been associated with atherosclerotic disease states. The aim of the present study was to evaluate whether circulating levels of vascular cell adhesion molecule-1 (sVCAM-1), intercellular adhesion molecule-1 (sICAM-1), E- and P-selectin were significantly elevated in patients with coronary heart disease (CHD) compared with healthy controls, and to study possible associations between these sCAMs, tumour necrosis factor alpha (TNFalpha). interleukin-6 (IL-6), CRP and major CHD risk factors. The study included 193 patients in various stages of CHD and 193 matched controls. To evaluate any possible influence of acute phase reaction, reinvestigation was performed after 6 months. After adjustment for major CHD risk factors, sVCAM-1, sICAM-1, P-selectin, IL-6 and CRP remained significantly elevated in the CHD patients (p for all <0.001). In multivariate analysis sVCAM-1 was predicted by age (p=0.015), sICAM-1 by smoking (p<0.001) and total cholesterol (p=0.026), E-selectin by body mass index (BMI) (p=0.004) and P-selectin by male gender (p=0.015). TNFalpha significantly predicted sICAM-1 and E-selectin levels, while IL-6 predicted CRP but none of the sCAMs measured. This might indicate that TNFalpha, but not IL-6, plays a major role in the regulation of sCAM levels in vivo.     

2型糖尿病病人血清sICAM-1、sVCAM-1与颈动脉粥样硬化的相关性研究

目的探讨2型糖尿病（T2DM）病人血清细胞间黏附分子1（sICAM-1）和血管细胞黏附分子1（sVCAM-1）与颈动脉粥样硬化的关系。方法酶联免疫吸附（ELISA）法检测120例T2DM病人（T2DM组）,根据超声颈动脉内中膜厚度（IMT）检查结果将120例T2DM病人分为3个亚组：IMT正常组40例、IMT增厚组30例、IMT斑块组50例（又根据超声IMT检查结果分为2小亚组：稳定斑块组36例、不稳定斑块组14例）与58例健康体检者（对照组）血清sICAM-1、sVCAM-1水平,并进行生化指标检测。结果糖尿病组血清sICAM-1、sVCAM-1水平均显著高于对照组（均P〈0．05）。IMT增厚组、IMT斑块组血清sICAM-1、sVCAM-1水平均显著高于IMT正常组（均P〈0．05）,不稳定斑块组显著高于稳定斑块组（P〈0．05）。糖尿病组血清sICAM-1、sVCAM-1水平与三酰甘油（TG）、低密度脂蛋白胆固醇（LDL-C）、糖化血红蛋白（HbAlc）、高敏C反应蛋白（Hs—CRP）均呈正相关（r=0．670、0．665、0．666、0．702、0．678、0．675、0．686、0．704,均P〈0．01）。结论T2DM病人血清sICAM—1、sVCAM-1水平与颈动脉粥样硬化程度及斑块稳定性有关,其升高与慢性高血糖、脂代谢紊乱及炎症反应相关。     

Increased levels of markers of vascular inflammation in patients with coronary heart disease

Elevated levels of soluble cell adhesion molecules (sCAMs), inflammatory cytokines and C-reactive protein (CRP) have been associated with atherosclerotic disease states. The aim of the present study was to evaluate whether circulating levels of vascular cell adhesion molecule-1 (sVCAM-1), intercellular adhesion molecule-1 (sICAM-1), E- and P-selectin were significantly elevated in patients with coronary heart disease (CHD) compared with healthy controls, and to study possible associations between these sCAMs, tumour necrosis factor &#102 (TNF &#102 ), interleukin-6 (IL-6), CRP and major CHD risk factors. The study included 193 patients in various stages of CHD and 193 matched controls. To evaluate any possible influence of acute phase reaction, reinvestigation was performed after 6 months. After adjustment for major CHD risk factors, sVCAM-1, sICAM-1, P-selectin, IL-6 and CRP remained significantly elevated in the CHD patients (p for all < 0.001). In multivariate analysis sVCAM-1 was predicted by age (p = 0.015), sICAM-1 by smoking (p < 0.001) and total cholesterol (p = 0.026), E-selectin by body mass index (BMI) (p = 0.004) and P-selectin by male gender (p = 0.015). TNF &#102 significantly predicted sICAM-1 and E-selectin levels, while IL-6 predicted CRP but none of the sCAMs measured. This might indicate that TNF &#102, but not IL-6, plays a major role in the regulation of sCAM levels in vivo .     

Influence of single low-density lipoprotein apheresis on the adhesion molecules soluble vascular cellular adhesion molecule-1, soluble intercellular adhesion molecule-1, and P-selectin.

The aim of our study was to investigate the influence of single low-density lipoprotein apheresis (heparin extracorporeal low-density lipoprotein precipitation [HELP]procedure) on plasma concentrations of soluble adhesion molecules (sAMs) such as soluble vascular cellular adhesion molecule-1 (sVCAM-1), soluble intercellular adhesion molecule-1 (sICAM-1), and P-selectin in patients with familial heterozygous hypercholesterolemia and documented coronary artery disease enrolled in a chronic weekly HELP apheresis. Before HELP apheresis, the mean plasma concentration of sVCAM-1 was 515 +/- 119 ng/ml, 204 +/- 58 ng/ml for sICAM-1, and 112 +/- 45 ng/ml for P-selectin. After single HELP apheresis, plasma concentrations of sAM declined significantly by 32 +/- 7%, 18 +/- 15%, and 33 +/- 25% for sVCAM- 1,sICAM-1 and P-selectin, respectively. After a 1 week interval, sAM concentrations rose to approximately the initial values. The concentrations of all sAMs studied were significantly lower in the plasma leaving than entering the filter. Due to filtration, the decline in plasma level of sVCAM-1, sICAM-1, and P-selectin was 62 +/- 19%, 51 +/- 39%, and 67 +/- 22%, respectively. In addition to lipid reduction, single HELP apheresis significantly lowers plasma concentrations of sVCAM-1, sICAM-1, and P-selectin.     

C-反应蛋白细胞黏附分子与急性冠脉综合征相关性的临床研究

目的探讨急性冠脉综合征（ACS）患者体内C-反应蛋白（CRP）、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）表达水平以及它们之间的相互关系。方法252例冠心病患者分为两组：ACS组86例，非ACS组166例。酶联免疫吸附试验（ELISA）法测定血清sICAM-1和sVCAM-1水平，快速免疫比浊法测定血清CRP水平。结果ACS组血清CRP、sICAM-1和sVCAM-1水平均显著高于对照组（P〈0．01），而且ACS组各类型血清CRP、黏附分子水平亦显著高于对照组（P〈0．05或P〈0．01）。结论血清sICAM-1、sVCAM-1、CRP对ACS的发生、发展可能起到促进作用，在ACS危险分层中具有一定临床意义。     

苦参对急性白血病患者sICAM-1和sVCAM-1水平的影响

目的探讨苦参对急性白血病患者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)水平的影响。方法选取2013年3月至2015年3月该院收治的急性白血病患者60例,按照治疗方式的不同将患者分为常规化疗组和苦参治疗组,每组各30例。常规化疗组患者给予常规化疗方案实施治疗,苦参治疗组患者在常规化疗基础上加用苦参治疗。另选取同期该院健康体检者60例作为健康对照组。采用酶联免疫吸附试验(ELISA)分析急性白血病患者治疗前后和健康体检者血清sICAM-1、sVCAM-1水平。结果急性白血病患者血清sICAM-1、sVCAM-1水平在治疗前及治疗后均明显高于健康对照组,两者比较差异有统计学意义(P0.05)。常规化疗组及苦参治疗组,治疗后患者血清sICAM-1、sVCAM-1水平均有下降,苦参治疗组sICAM-1、sVCAM-1的水平下降程度较常规化疗组更明显,差异有统计学意义(P0.05)。苦参治疗组治疗有效率为90.00%,高于常规化疗组的67.67%,差异有统计学意义(P0.05)。结论苦参可明显降低急性白血病患者血清sICAM-1、sVCAM-1水平,改善常规化疗药物疗效,促进患者康复。     

Circulating levels of adhesion molecules and markers of endothelial activation in acute inflammation induced by prolonged brisk exercise

OBJECTIVES: To investigate circulating levels of adhesion molecules and markers of endothelial activation in acute inflammation induced by prolonged brisk exercise. DESIGN AND METHODS: The circulating levels of adhesion molecules E-, L- and P-selectins, intercellular and vascular adhesion molecule-1 (ICAM-1 and VCAM-1), along with those of thrombomodulin (TM), N-terminal pro-brain natriuretic peptide (NT-pro-BNP) and cardiac troponin T, were measured before, at the end of and at 48 h post-race, in athletes participating in this extreme physical stress paradigm. RESULTS: Levels of L- and P-selectins remained the same before and at the end of the "Spartathlon" race, presenting a similar decline at 48 h post-race. E-Selectin, ICAM-1 and TM reached a maximum value at the end of the race and returned to normal 48 h after the race. A similar profile was observed for VCAM-1 and NT-pro-BNP, with a tendency for a decrease at 48 h post-race, while troponin T was not detected. CONCLUSIONS: The indices of endothelial activation are strongly affected during "Spartathlon" race, suggesting that, although prolonged brisk exercise activates the endothelium, it rapidly recovers.     

Circadian variations do not have a major impact on serum levels of soluble (S) L-selectin (CD63L), S-intercellular adhesion molecule 1 (sICAM-1/CD54) and thrombopoietin in healthy individuals

The systemic levels of many soluble adhesion molecules and cytokines are altered in hematologic malignancies, autoimmune diseases and serious infections. Among mediators that show altered serum levels are soluble (S) L-selectin (CD63L) and soluble intercellular adhesion molecule-1 (ICAM-1/CD54) expressed by immunocompetent and hematopoietic cells and the hematopoietic growth factor thrombopoietin (Tpo). In the present study, we investigated whether the serum levels of these mediators show circadian variations in healthy individuals. Venous blood serum levels of all three mediators showed only minimal variations when measured regularly during a 24-h period. In contrast, previous studies have demonstrated that the systemic levels of these mediators are markedly altered during serious bacterial infection (SL-selectin, sICAM-1) and severe thrombocytopenia (Tpo). The results suggest that serum sampling at standardized times is probably not required in the future clinical evaluation of these three parameters.