支气管哮喘患者血清IL-6、TNF-α、IgE检测的临床分析

目的：探讨对支气管哮喘患者进行白细胞介素6（IL-6）、肿瘤坏死因子α（TNF-α）、IgE检测的临床意义。方法：通过观察36例急性支气管哮喘发作期患者（哮喘组）治疗前后血清IL-6、TNF-α、IgE含量的动态变化,并与健康体检者（对照组）比较。结果：哮喘组哮喘发作期患者血清IL-6、TNF-α、IgE含量均明显高于对照组（均P〈0.01）;哮喘缓解后即刻IL-6、TNF-α、IgE含量均较哮喘发作期有明显下降（均P〈0.01）;哮喘缓解后14d,IL-6、TNF-α、IgE含量较哮喘缓解后即刻又有明显下降（均P〈0.01）,但仍较对照组高（均P〈0.05）。IL-6、TNF-α含量和IgE含量均呈正相关（r=0.618,P〈0.01;r=0.723,P〈0.01）。结论：支气管哮喘病情的严重程度与IL-6、TNF-α、IgE含量密切相关,临床可以通过检测IL-6、TNF-α、IgE的含量作为判断支气管哮喘病情严重程度和治疗效果的重要指标。     

支气管哮喘心理社会因素与细胞因子及内皮素变化的关系

目的:探讨支气管哮喘患者的个性、生活事件及心理健康状况与相关细胞因子白介素(IL):IL-2、IL-4、IL-8、IL-10、γ-干扰素(IFN-γ)和内皮素(ET-1)在发病过程中变化的相关性.方法:对60例支气管哮喘患者和30例对照者,进行了艾森克人格(EPQ)、生活事件(LES)和心理健康状况(SCL-90)评定及IL-2、IL-4、IL-8、IL-10、IFN-γ与ET-1检测.结果:病人组EPQ测试:E得分明显低于对照组(P＜0.05),N得分高于对照组(P＜0.05);P、L得分虽有差异但无统计学意义;生活事件总分,病人组明显高于对照组(P＜0.01);SCL-90测评:病人组除偏执、精神病因子分与对照组差异无统计学意义外(P＞0.05),其余因子分和总分研究组高于对照组,差异有显著性(P＜0.05、0.01).血清IL-2、IL-10和IFN-γ研究组低于对照组(P＜0.01),IL-4、IL-8和ET-1研究组高于对照组(P＜0.05、0.01).相关性分析显示,在支气管哮喘发病过程中IL-2、IL-10和IFN-γ的变化与性格E呈正相关(r=0.24、0.36、0.40,P＜0.05、0.01),与性格N呈负相关(r=-0.33、-0.35、-0.30,P＜0.05、0.01);而IL-4、IL-8和ET-1与性格E呈负相关(r=-0.33、-0.42、-0.47,P＜0.05、0.01);与性格N呈正相关(r=0.61、0.38、0.47,P＜0.05、0.01);IL-4、IL-8和ET-1与SCL-90和LES得分呈正相关(r=0.54、0.37、0.49、0.34、0.38、0.32,P＜0.05、0.01);IL-2、IL-10和IFN-γ与SCL-90和LES得分呈负相关(r=-0.19、-0.32、-0.49、-0.44、-0.27、-0.51,P＜0.05、0.01).结论:支气管哮喘患者的个性具有神经质特征,心理健康水平较低,一年内的生活事件较多.在支气管哮喘发病中,血清IL-2、4、8、10、IFN-γ和ET-1有明显变化,而且与患者个性特征、生活事件和心理健康水平均有一定程度的显著相关性.     

支气管哮喘患者血清IL-10、IL-5和ECP的变化及其意义

目的 通过对支气管哮喘患者和正常对照组的血清IL-10, IL-5和 ECP水平的测定以及相互关系的研究,探讨它们在支气管发病中的作用.方法 应用Pharmacia UniCAP系统和ELISA方法分别测定支气管哮喘患者和正常对照组的血清E CP和IL-10、IL-5水平.结果 正常对照组和发作期的支气管哮喘患者的 ECP水平分别为(3.97±2.13) μg/L和(21.76±12.08) μg/L.正常对照组,支气管哮喘ECP 升高组和支气管哮喘ECP正常组的血清IL-5水平分别为(10.90±4.41) pg/mL,(20.62± 15.7 4) pg/mL和(9.24±7.16) pg/mL.正常对照组和支气管哮喘ECP升高组之间IL-5水平有显著差异(P＜0.01),正常对照组和支气管哮喘ECP正常组之间IL-5水平无差异(P＞0.05) ,支气管哮喘ECP正常组和ECP升高组之间IL-5水平有显著差异(P＜0.01),ECP与IL-5 明显相关 ,两者之间的相关系数r=0.465(P＜0.01).正常对照组,支气管哮喘ECP升高组和支气管哮喘ECP正常组的血清IL-10水平分别为(38.28±15.17) pg/mL,(22.76±15.25) pg/mL 和(42.32±14.61) pg/mL,支气管哮喘ECP正常组和ECP升高组之间IL-10水平有显著差异( P＜0. 01).结论 支气管哮喘的发生与嗜酸粒细胞有密切的关系,ECP和IL-5可反映嗜酸粒细胞的活化程度,在支气管哮喘发作时嗜酸粒细胞处于激活状态,易于释放蛋白颗粒;IL-5对嗜酸粒细胞有调控作用.支气管哮喘组的血清IL-10水平较正常对照组低,提示支气管哮喘患者IL-10分泌减少,不能有效抑制炎症或促炎症细胞因子的合成及释放,亦即不能有效抑制炎症反应,可能是导致或加重气道炎症的原因之一.     

血清IL-10、CRP、IgE与小儿支气管哮喘病情相关性的研究

目的 探讨血清IL-10、CRP、IgE与小儿支气管哮喘病情的相关性.方法 选取2018年9月至2020年10月在我院接受治疗的94例支气管哮喘患儿,另选取50例健康儿童为对照组,测定受试者肺功能及血清IL-10、CRP、IgE水平,分析不同临床时期、不同病情各指标的差异.结果 与对照组比较,支气管哮喘组血清IL-10水平及FEV1、PEF明显降低,血清CRP、IgE水平明显升高,差异均有统计学意义(P均<0.05);支气管哮喘急性发作期组血清IL-10水平及FEV1、PEF均明显小于临床缓解期组,而血清CRP、IgE水平明显升高,差异有统计学意义(P均<0.05);轻度、中度、重度支气管哮喘组血清IL-10、CRP、IgE和肺功能指标组间比较差异均存在统计学意义(P均<0.05);且随着病情加重,血清IL-10水平及FEV1、PEF逐渐降低,而血清CRP、IgE水平逐渐升高(P<0.05);Pearson相关性分析结果显示,血清IL-10与FEV1、PEF呈显著正相关(P均<0.05),血清CRP、IgE与FEV1、PEF均呈显著负相关(P均<0.05);且血清IL-10与CRP、IgE均呈显著负相关(P均<0.05),血清CRP与IgE呈显著正相关(P<0.05).结论 小儿支气管哮喘急性期气道炎症加重,血清CRP、IgE水平升高,IL-10水平降低,各指标水平与患儿病情与转归关系密切,动态监测上述指标对小儿支气管哮喘病情诊断和临床治疗具有较高的指导意义.     

抗SH2-Bβ抗体可减轻哮喘小鼠气道炎症和气道高反应性

目的:研究SH2-Bβ在支气管哮喘发病中的作用.方法:SH2-Bβ被阻断后,观察哮喘小鼠肺泡灌洗液中细胞数、应用酶联免疫吸附实验肺泡灌洗液、血清及脾细胞培养液中IgE、IL-4含量变化.应用小鼠肺功能仪检测气道阻力的变化.结果:同哮喘组比,anti-SH2-Bβ组:1)气道阻力明显降低(P＜0.01);2)肺泡灌洗液中细胞总数及嗜酸细胞数明显降低(P＜0.01);3)血清IgE及脾细胞培养液中IgE、IL-4含量明显降低(P＜0.01).结论:SH2-Bβ参与哮喘小鼠气道炎症和气道高反应性的发病机制.阻断SH2-Bβ可能成为治疗过敏性哮喘的有效新方法.     

哮喘灵雾化吸入对哮喘大鼠IFN-γ、IL-4及IgE水平的影响

目的: 探讨哮喘灵雾化吸入对哮喘鼠血清中IFN-γ、 IL-4 和IgE水平的影响及其可能机制.方法: 建立Wistar大鼠哮喘模型, 哮喘灵(27.84 g/kg、 13.92 g/kg)雾化吸入治疗7 d, 用放射免疫法测定血清中IFN-γ、 IL-4及IgE的含量.结果: 与模型组比较, 哮喘灵治疗组大鼠血清IFN-γ水平升高(P＜0.05)、 IL-4和IgE水平下降(P＜0.01), 且药物治疗组大鼠的哮喘症状得到缓解, 引喘潜伏期明显延长.结论: 哮喘灵可通过调节哮喘鼠IFN-γ、 IL-4和IgE的水平而起到治疗哮喘的作用.     

支气管哮喘患者血清TNF-α、IL-8和IgE水平的相关性分析

目的 探讨支气管哮喘患者血清TNF-α、IL-8和IgE的关系及意义.方法 采用酶联法对33例支气管哮喘患者进行了血清TNF-α、IL-8和IgE检测,并与35名正常人作比较.结果 支气管哮喘患者血清TNF-α、IL-8和IgE水平均非常显著地高于正常人组（P〈0.01）,经治疗1个月后与正常人组比较仍有显著性差异（P〈0.05）,血清IgE水平与TNF-α、IL-8水平呈显著正相关（r=0.5712、0.6018,P〈0.01）.结论 检测血清TNF-α、IL-8和IgE含量可作为判断支气管哮喘病情的严重程度和治疗效果的重要指标.     

血清肥大细胞羧肽酶与支气管哮喘的相关性研究

目的：检测支气管哮喘患者外周血中肥大细胞羧肽酶的含量,研究其与哮喘患者FEV 1(%)、IgE的关系,探讨其在支气管哮喘发病机制中的作用。方法：35例临床确诊为中重度持续性支气管哮喘患者作为病例组,均行肺功能及IgE水平检测,依据血清IgE水平将支气管哮喘患者分为IgE升高组（n=20）和IgE正常（n=15）。另外,选取22名健康者作为对照组,采用ELISA法检测受试者血清肥大细胞羧肽酶水平。比较支气管哮喘患者与健康者血清中肥大细胞羧肽酶水平;分析血清肥大细胞羧肽酶水平与IgE及肺功能的相关性。结果：IgE升高组患者血清肥大细胞羧肽酶水平明显高于IgE正常组（P＜0.05）;支气管哮喘急性发作期患者血清肥大细胞羧肽酶水平明显高于健康对照组（P＜0.05）;另外,哮喘急性发作期患者血清肥大细胞羧肽酶水平与患者FEV(%)呈明显的负相关;缓解期血清肥大细胞羧肽酶水平与FEV-1(%)无相关性（r=-0.421, P=0.012;r=-0.284,P=0.099）。结论：血清肥大细胞羧肽酶可能参与了支气管哮喘急性发作的气道炎症反应。     

血清IL-33、IFN-γ与IgE在支气管哮喘患者中的表达及临床意义

目的观察血清白细胞介素-33(IL-33)、干扰素-γ(IFN-γ)及IgE在支气管哮喘患者中的表达及意义。方法选取94例急性发作期支气管哮喘患者,同时选取同期60例健康体检的人群为对照组,采用酶联免疫法测定血清中IgE、IL-33及IFN-γ水平。比较两组IgE、IL-33和IFN-γ的水平。分析IL-33、IFN-γ和IgE的相关性。结果支气管哮喘患者外周血中IFN-γ水平低于正常人群(t=4.533,P<0.001);IL-33、IgE水平高于正常人群(t=5.831、66.129,P<0.001,<0.001),差异有统计学意义。IgE水平与IL-33水平呈正相关(r=0.667,P=0.032),IFN-γ与IgE、IL-33呈负相关(r=-0.714,P=0.024;r=-0.623,P=0.038)。结论血IgE、IL-33和IFN-γ水平的变化在支气管哮喘患者发病过程中起到一定的作用。     

白细胞介素4和受体基因多态性与儿童变应性哮喘的相关分析

目的：探讨白细胞介素4(IL-4)及受体(IL-4R)基因多态性与儿童变应性哮喘易感性及与血浆总IgE的关系。方法： 采用聚合酶链反应-限制性酶切多态性方法检测IL-4基因启动子区-589位和IL-4R α亚单位Q576R两位点基因多态性，并观察对血浆总IgE的影响。结果：(1)白细胞介素-4基因-589基因多态性与儿童支气管哮喘无相关关系；(2)IL-4受体 α亚单位RR基因型和R 576等位基因频率在儿童支气管哮喘与对照组相比差异显著(P＜0.01，P＜0.01)，且R 576与高IgE相关。结论： 这些数据表明IL-4R α亚单位R 576是中国汉族变应性哮喘患儿的危险因子，且与高IgE相关。     

Effect of inhaled interleukin-5 on number and activity of eosinophils in circulation from asthmatics

The aim of the present study was to examine the effects of interleukin-5 (IL-5) inhalation on changes in the activity and number of circulating eosinophils, as well as concentrations of serum total IgE, in allergic asthmatics. A randomized double-blind, placebo-controlled study design was employed in which each subject acted as his or her own control. Eight nonsmoking patients with allergic asthma were administered recombinant human IL-5 by nebulization. Total white blood cell counts and differentials, as well as concentrations of ECP and total IgE in serum, were determined before and at 2, 24, and 48 h after inhalation. Our results demonstrated that eosinophil numbers increased from baseline (3.6 +/- 1.1 x 10(5)/ml) to 6.3 +/- 1.2 x 10(5)/ml (P < 0.01) at 24 h and to 5.7 +/- 0.9 x 10(5)/ml (P < 0.01) at 48 h after IL-5 inhalation in asthmatics. Accompanying this significantly increased blood eosinophilia were significantly elevated serum ECP levels. Compared with baseline (6.3 +/- 1.1 ng/ml), ECP levels increased with time following IL-5 inhalation, reaching 17.6 +/- 2.8 ng/ml (P < 0.01) at 24 h and remaining elevated at 48 h (18.1 +/- 2.9 ng/ml, P < 0.01). IL-5 inhalation had no significant effect on levels of serum total IgE, however. These findings provide direct evidence that nebulized IL-5 not only induces a significant blood eosinophilia but also results in the activation of circulating eosinophils. Our data further support the importance of IL-5 in the pathogenesis of bronchial asthma in humans.     

慢性肾炎患者血浆leptin和血清IL-6、EL-18及SOD检测的临床意义

目的：探讨慢性肾炎患者治疗前后血浆leptin和血清IL-6、IL．18及SOD水平的变化及临床意义。方法：应用放射免疫分析和酶联免疫法对33例慢性肾炎患者进行了血浆leptin和血清IL-6、IL．18及SOD检测,并与35名正常健康人作比较。结果：慢性肾炎患者在治疗前血浆leptin和血清IL-6、IL．18均显着地高于正常人组（P〈0．01）,而血清SOD水平则显着地低于正常人组（P〈0．01）。经中西医结合治疗3个月后与正常人组比较仍有显著性差异（P〈0．05）,血浆leptin水平与血清IL-6、IL．18水平呈正相关（r=0．5718、0．4916,P〈0．01）,而与SOD水平呈负相关（r=-0．6018,P〈0．01）。结论：检测慢性肾炎患者治疗前后血浆leptin和血清IL-6、IL-18及SOD水平的变化对临床观察和预后有重要的临床价值。     

孟鲁司特对支气管哮喘患者血清IL-6、IL-8和IL-10水平的影响

目的:探讨孟鲁司特在支气管哮喘患者体内IL-6、IL-8和IL-10水平的影响。方法:应用放射免疫分析和酶联法对31例支气管哮喘患者应用孟鲁司特治疗前后血清IL-6、IL-8和IL-10水平的变化,并与35名正常健康人作比较。结果:支气管哮喘患者在治疗前血清IL-6、IL-8水平非常显著地高于正常人组(P<0.01),而IL-10水平显著地低于正常人组(P<0.01),经治疗2周后与正常人组比较仍有显著性差异(P<0.05)。结论:孟鲁司特对支气管哮喘患者血清IL-6、IL-8和IL-10有一定程度的调节作用,从而降低患者体内的炎症水平,促进病情缓解和好转。     

Serum levels of sCD23 and sCD25 in children with asthma and in healthy controls*

To investigate whether markers of lymphocyte activation are useful markers of disease activity in childhood asthma, we studied serum levels of soluble CD25 (receptor for IL-2) and soluble CD23 (low-affinity receptor for IgE) in 178 children (aged 2-18 years) suffering from mild to moderate asthma (mean asthma severity score: 2, range: 1–4), and in 175 healthy age-matched controls. Levels of sCD23 and sCD25 were invesely related to age. sCD23 was lower in patients with asthma (means per age group: 4.93–2.29 ug/1; controls: 6.92–4.11 ug/1, P <0.05), while sCD25 tended to be higher (1601–597 kU/ml, controls: 1350–-661 kU/ml, P = NS). sCD25 correlated significantly with asthma severity score (r=0.41; P <0.01) and MEF₂₅ (maximum experatory flow at 25% of vital capacity, r= -O.43; P<0.05) in children <10 years, while sCD23 correlated with asthma severity (r=O.28; P <0.05) in children > 10 years. On follow-up, levels of sCD25 normalized with clinical improvement. In children with nonatopic asthma, levels of sCD25 were significantly higher than in atopic patients. Our observations provide further evidence of the role of T-cell activation in asthma. Monitoring of lymphocyte activation markers, particularly levels of sCD25, may be useful in the follow-up of asthmatic children.     

Regulation of IgE and IgG4 synthesis in patients with hyper IgE syndrome

In order to investigate the imbalance of IgG subclasses and its relationship to IgE level, 14 patients with hyper IgE syndrome (HIE syndrome) were examined for serum IgG subclasses and IgE levels and five of these patients were studied for in vitro IgE and IgG subclass production by peripheral blood lymphocytes (PBL) in response to interleukin-4 (IL-4)/interferon-gamma (IFN-gamma). Serum IgE levels were highly correlative with serum IgG4 levels (r = 0.75, P less than 0.005), but not with IgG1, IgG2 or IgG3 levels (r = 0.21, 0.43 and 0.41, respectively). In an in vitro study, recombinant IL-4 enhanced not only spontaneous IgE synthesis but also IgG4 synthesis in cultures of PBL from patients with HIE syndrome as well as in healthy donors (P less than 0.01), and the effect of recombinant IL-4 on both IgE and IgG4 synthesis was inhibited by low concentrations of recombinant IFN-gamma (P less than 0.01). The disturbed regulation of IgE and IgG4 seen in patients with hyper IgE syndrome may be caused mainly by the disturbed regulation of both cytokines.     

IL-18和IL-10在慢性丙型肝炎抗病毒疗效中的早期预测作用

目的观察慢性丙型肝炎患者干扰素联合利巴韦林治疗过程中血清白细胞介素-18（IL-18）和白细胞介素-10（IL-10）水平的变化,探讨它们在慢性丙型肝炎抗病毒疗效中的早期预测作用。方法采用酶联免疫吸附法（ELISA）检测30例正常人．82例慢性丙型肝炎患者抗病毒治疗前、治疗4周、治疗24周血清中IL-18和IL-10的水平．同时检测肝功能和HCVRNA（定量PCR法）。结果慢性丙型肝炎患者治疗前血清IL-18和IL-10的水平显著高于正常人（P〈0．01）,其值与谷丙转氨酶（ALT）活性呈显著正相关。抗病毒有效者,在不同时间点血清IL-18和IL—10的水平均较治疗前显著下降（P〈0．05）,其中,完全应答组细胞因子水平治疗前后改变更显著．而无效者改变不明显。结论IL-18和IL-10在慢性丙型肝炎发病中起一定作用,早期检测IL—18和IL-10的水平对干扰素联合利巴韦林抗病毒的疗效预测有重要意义。     

Candida albicans mannan- and protein-induced humoral, cellular and cytokine responses in atopic dermatitis patients

BACKGROUND: The cytokine observed most often in atopic dermatitis (AD) is IL-4, but a role for IL-5 and IFN-gamma in the late and delayed phase reactions has been suggested. In AD with head, neck and shoulder distribution, hypersensitivity to saprophytic yeasts is an important pathogenetic factor. The yeast allergens include both the mannan polysaccharides and the proteins. Mannans are major cross-reacting allergens likely to be involved in the pathogenesis of AD. OBJECTIVE: To characterize the humoral, lymphoproliferative and cytokine (IL-2, 4, 5 and IFN-gamma) responses of peripheral blood mononuclear cells (PBMCs) induced by Candida albicans mannan and protein antigens in AD. METHODS: Fifteen AD patients and seven healthy controls were included. Ficoll-isolated PBMCs were stimulated by PHA and laboratory-generated mannan and protein extracts of C. albicans. Lymphocyte proliferation was measured and cytokine production was studied by ELISA. The antigen-specific IgG and IgE antibodies were analysed by ELISA and nitrocellulose RAST. RESULTS: In AD mannan (P < 0.005) and protein (P < 0.002), specific IgE levels were higher than in healthy controls. Both mannan and protein-specific lymphoproliferations (both: P < 0.02) were higher in AD than in healthy controls. Mannan, but not protein, induced long lasting IL-2 and IL-4 productions from 24 h lasting up to 66-96 h and IL-5 and IFN-gamma productions with elevated levels at 66 and 96 h. The mannan-induced IL-2 (P = 0.015) and IFN-gamma (P < 0.005) were increased in AD as compared with healthy controls. Significant correlations were seen between the protein-induced proliferation responses and both serum total IgE (r = 0.59, P < 0.01) and protein-specific IgE (r = 0.65, P < 0.005). The mannan-induced IL-2 responses correlated with the specific IgE (r = 0.62, P < 0.01) and proliferation (r = 0.51, P < 0.02) and S-IgE level (r = 0.71, P < 0. 002). Mannan-induced IL-4 and IFN-gamma productions also correlated (r = 0.43, P < 0.05). CONCLUSIONS: C. albicans mannan induced elevated IL-2 and IFN-gamma responses in AD patients. The correlations of the cytokine responses with mannan-induced IgE and proliferation responses suggest that C. albicans mannan induced TH1 type cytokine responses are involved in AD.