毛细支气管炎患儿血清IL-4,IgE测定及与哮喘的相关性研究

目的观察毛细支气管炎患儿血清IL-4,IgE的变化.方法测定36例支气管哮喘发作期,42例毛细支气管炎,36例支气管肺炎患儿血清IL-4,IgE水平.结果毛细支气管炎患儿血清IL-4,IgE水平(分别为141.67±44.97pg/ml,124.76±50.45IU/ml)介于哮喘组(分别为19I.64±38.87pg/ml,199.87±65.63IU/ml)与肺炎组(分别为55.44±27.96pg/ml,79.01±69.28IU/ml)之间,有显著性差异(P均＜0.01).结论毛细支气管炎和哮喘可能存在着相同或相似的免疫学发病机制.     

肾病综合征患儿治疗前后血浆leptin、血清IL-6和IL-18水平的变化及临床意义

目的:探讨了肾病综合征患儿治疗前后血浆leptin和血清IL-6、IL-18水平的变化及临床意义.方法:应用放射免疫分析和酶联法对31例肾病综合征患儿进行了治疗前后血浆leptin和血清IL-6、IL-18的检测,并与30名正常健康儿作比较.结果:肾病综合征患儿在治疗前血浆leptin和血清IL-6、IL-18水平均非...     

儿童肾病综合征免疫球蛋白与复发的关系研究

目的:探讨儿童原发性肾病综合征(INS)血清免疫球蛋白水平(IgG、IgA、IgM、IgE)与复发的关系,以了解INS复发的发病机制及指导临床治疗。方法:收集我院176例INS患儿的临床资料,采用回顾性调查方法,对其初次发病时的血清免疫球蛋白水平与复发的关系进行分析。结果:176例INS患儿中93.2%(164例)IgG降低;96.6%(170例)IgM升高。初次发病时的血清IgE水平升高者复发率(70%)明显高于IgE水平正常者(54%),血清IgE水平升高与复发的发生密切相关(P0.05)。各年龄阶段的IgG、IgA、IgM与复发无相关性(P0.05)。结论:INS患儿存在免疫球蛋白合成异常,可能与患儿体液免疫紊乱有关。血清IgE升高者较IgE正常者易复发,早期发现血清IgE升高的患儿,制定合理的治疗方案,调节患儿免疫功能,避免感染,以尽可能减少INS的复发。     

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.     

IL-2等6种细胞因子与儿童支气管哮喘关系的研究

观察急性发作期、激素治疗后缓解期支气管哮喘患儿血浆细胞因子的变化,探讨儿童支气管哮喘与细胞因子的关系。采用免疫分析技术对64例急性发作期支气管哮喘患儿、45例缓解期患儿及20例正常儿童血浆IL-2、sIL-2R、IL-4、IL-5、IL-8、TNF-α、IgE等细胞因子水平进行测定;用逆转录聚合酶键反应技术（RT-PCR）对外周淋巴细胞IL-4、IL-5mRNA表达进行定量分析。结果:（1）发作期哮喘患儿血浆IL-2、sIL-2R、IL-4、IL-5、IL-8、TNF-α和IgE水平均明显高于正常对照组（P值均<0.001）,以IL-4、IL-5和IgE变化最为明显,缓解期均明显下降,但IL-4、IL-5及IgE水平仍高于正常水平（P<0.01）。（2）发作期患儿外周淋巴细胞IL-4、IL-5mRNA表达增强,治疗缓解后减弱,同时血浆IL-4、IL-5分别与IL-4、IL-5mRNA呈明显正相关关系。结论:（1）本研究结果提示细胞因子的释放与哮喘的发作密切相关。（2）外周淋巴细胞IL-4、IL-5强表达以及血浆IL-4、IL-5高水平提示哮喘发作期Th2亚群的激活;同时IL-8和TNF-α的升高表明中性粒细胞和单核巨噬细胞可能参与哮喘的发作。（3）糖皮质激素抑制多种细胞因子的释放,可能是其治疗哮喘的主要机制。     

白介素13基因多态性与湖北汉族人群哮喘的关系

目的：为了探讨IL-13基因编码区精氨酸(Arg)110谷氨酰胺(Gln)多态性是否与湖北地区汉族人群哮喘及血浆总IgE水平升高相关。方法：采用PCR-RFLP方法，检测湖北地区43名哮喘患儿、45名成人哮喘患者、31名非哮喘儿童和46名体检健康成人的IL-13外显子4Arg110Gln的等位基因频率和基因型频率。用化学发光法测定血浆总IgE。结果：IL-13基因4257应等位基因a在儿童、成人中的频率分别为0．39、0．32。IL-13基因Arg110Gln多态性的GlnGln型与儿童哮喘和血浆总IgE升高相关(P分别为0．030、0．0009)，但与成人哮喘、血浆总IgE水平之间无统计学意义(P分别为0．219、0．174)。结论：研究显示IL-13外显子4Arg110Gln g/a单核苷酸多态性与湖北汉族儿童哮喘和血浆总ISE水平相关，但与成人哮喘、血浆总IgE水平之间无统计学意义。     

小儿肾病综合征时外周血T淋巴细胞功能的研究

为研究细胞免疫功能紊乱在小儿肾病综合征发病机理中的作用,我们对48例患儿外周血淋巴细胞产生的白细胞介素-2(Interleukin-2,IL-2)活性、T淋巴细胞亚群及白细胞介素-2受体(IL-2receptor,IL-2R)进行了测定。结果表明:①肾病期IL-2活性及IL-2R表达下降,T细胞亚群失衡,并与疾病的活动性有关。②肾病期IL-2活性水平与CD4~ 细胞百分率、CD4~ /CD8~ 细胞比值呈正相关,分泌IL-2的T细胞数量减少,可能是肾病患儿IL-2活性下降的原因之一。③肾病期IL-2活性变化与血清IgG含量变化呈正相关,IL-2活性下降可能是低IgG血症的原因之一。这些结果提示:T淋巴细胞功能受损,免疫应答能力下降,是小儿肾病综合征的重要表现。因此,适当选用免疫调节剂提高机体免疫水平,对疾病治疗会有一定益处。     

IFN-γ与 IL-4基因多态性与儿童哮喘易感性及外周血IFN-γ、IL-4和IgE的关系

目的: 探讨IFN-γ和 IL-4 基因多态性与儿童哮喘易感性及血浆IFN-γ、IL-4和IgE的相关性。方法: 用聚合酶链反应-限制性酶切片段长度多态性(PCR-RFLP)法检测100例哮喘儿童和122例对照儿童IFN-γ基因-179G/T、 IL-4 基因-33C/T和-589C/T位点基因型;等位基因特异性-聚合酶链反应(AS-PCR)法检测IFN-γ基因+874A/T位点基因型;毛细管电泳法检测IFN-γ基因CA重复序列基因型;ELISA法测定血浆IFN-γ、IL-4和IgE。结果: 100例哮喘儿童和122例对照儿童IFN-γ基因-179位点均为GG纯合子,未检测到突变基因型。IFN-γ基因+874A/T位点和CA重复序列的基因型和等位基因频率分布在哮喘组和对照组间无显著差异(P>0.05);+874位点多态性与血浆IFN-γ水平相关,AA基因型IFN-γ含量低于AT基因型(P<0.05)。 IL-4 基因-33C/T和-589C/T位点的基因型和等位基因频率分布在哮喘组和对照组间有显著差异(P<0.05);-33和-589位点TT基因型外周血IL-4和总IgE浓度均高于CT基因型,只有-33位点与血浆IL-4水平存在相关性(P<0.05)。结论: IFN-γ基因+874A/T和CA重复序列多态性可能与儿童哮喘无相关性,+874A/T位点多态性与IFN-γ水平相关。 IL-4 基因-33TT和-589TT基因型可能为儿童哮喘的易感基因型,-33位点多态性与IL-4表达水平相关。     

哮喘儿童AIT治疗前后血浆ET-1和血清IgE水平变化

目的:观察哮喘儿童变应原免疫治疗(AIT)前后血浆内皮素-1(ET-1)与血清IgE水平变化,以探讨二者在哮喘变应原免疫治疗中的意义和关系.方法:应用放射免疫分析检测46例哮喘儿童变应原免疫治疗前后血浆ET-1与血清IgE水平,并与32例正常对照组进行比较.结果:治疗有效组(35例)治疗前血浆ET-1与血清IgE水平分别为(59.1±11.7)pg/ml和(11.1±3.2)IU/ml,均显著高于正常对照组(P＜0.01),AIT治疗后显著降低,分别为(52.7±11.1)和(8.2±2.4)IU/ml(P＜0.01).治疗无效组(11例)治疗前后ET与IgE水平无显著性变化.结论:治疗后血浆ET-1与血清IgE水平降低可能是哮喘患儿AIT治疗有效的重要机理.     

抑郁症患者IL-2及sIL-2R的检测及临床意义

目的　探讨白介素 -2 ( IL-2 )及可溶性白介素 -2受体 ( s IL-2 R)在抑郁症发病中的作用及临床意义。方法　用酶联免疫吸附法检测 30例抑郁症患者和 30例正常人血清 IL-2及 s IL-2 R水平 ,并比较二者的差异。结果　抑郁症患者 IL-2及 s IL-2 R分别为 95 1 .2± 1 1 0 .5 ngl/L、( 389.6± 2 1 1 .1 ) U/ml,高于对照组的 384 .1± 72 .5 ng/L、2 83.6± 1 4 6 .7U/ml,二者比较差异有显著性 ( P<0 .0 1 )。结论　抑郁症患者 IL-2及 s IL-2 R水平增高。     

Th2-type cytokines modulate IL-6 release by human bronchial epithelial cells

The multifunctional cytokine IL-6, which can be locally produced by human bronchial epithelial cells (HBECs), has been found to play a role in IL-4 dependent IgE synthesis. Since the allergic reaction in bronchial asthma is associated with the upregulation of IL-4 and Th2 type of immune response, the purpose of our study was to assess whether IL-4 and related cytokines IL-10 and IL-13 regulate IL-6 release by HBEC s. HBECs were obtained by bronchial brushing, cultured in LHC-9/RPMI 1640. At the third passage the cells were stimulated with cytokines (0.1-20 ng/ml) diluted in unsupplemented media for 24 h. The supernatants were tested for IL-6 content by sandwich ELISA. Unstimulated HBECs produced detectable amounts of IL-6 (368+/-25 pg/ml). Exposure to IL-10 (368+/-22 pg/ml) and IL-13 (395+/-6 pg/ml) resulted in little changes. IL-4 caused a slight but significant increase in IL-6 release (530+/-45 pg/ml), P<0.05, TNFalpha (1657+/-85 pg/ml) and IFNgamma (1953+/-37 pg/ml) showed strong induction of IL-6 release in HBECs (P<0.005 and P<0.001, respectively). Both IL-4 and IL-13 significantly inhibited TNF induced IL-6 release (P<0.01 for both) while augmenting the effect of IFNgamma (P<0.005 and P<0.01, respectively.). IL-10 was without a significant effect. We conclude that Th2-type cytokines IL-4 and IL-13 affect the release of IL-6 by HBECs in response to TNFalpha (inhibition) and IFgamma (augmentation). IL-10 had no effect on the regulation of IL-6 release. Modulation of IL-6 levels by Th2-type cytokines may play a role in allergic reactions through the IL-6 promoting effect on IL-4 mediated IgE production.     

慢性牙周炎伴肥胖患者血清中IL-6、IL-18表达水平的研究

目的 探究白细胞介素6（IL-6）、白细胞介素18（IL-18）在肥胖慢性牙周炎患者血清中的表达水平变化及意义。方法 选取2017年9月~2018年5月在佳木斯大学附属口腔医院牙周科门诊确诊为慢性牙周炎患者15例设为NP组,另选取同期慢性牙周炎伴肥胖患者15例设为FP组。收集两组患者外周血样本并记录牙周PD、CAL,采用双抗体夹心酶联免疫吸附法（ELISA法)测定样本中的IL-6、IL-18的表达水平,分析两组间指标的差异及相关性。结果 FP组血清中IL-6、IL-18分别为（9.16±2.35）pg/ml、（325.22±98.67）pg/ml,其表达水平分别高于NP组的（6.15±2.06）pg/ml和（241.52±78.82）pg/ml,差异有统计学意义（P＜0.05）;FP组中PD与血清中IL-6、IL-18呈高度正相关（r＝0.894,P＜0.01;r＝0.819,P＜0.01）;CAL与血清中IL-6、IL-18呈正相关（r＝0.885,P＜0.01,r＝0.828,P＜0.01）;NP组中PD与血清中IL-6、IL-18也有正相关关系（r＝0.842,P＜0.01,r＝0.728,P＜0.01）;CAL与血清中IL-6、IL-18呈正相关（r＝0.884,P＜0.01,r＝0.707,P＜0.01）。结论 肥胖状态所导致的外周血中IL-6、IL-18水平的升高与CP的发生发展存在着密切联系。     

High serum levels of additional IL-18 forms may be reciprocally correlated with IgE levels in patients with atopic dermatitis

We established an ELISA system for determination of as yet unidentified species of interleukin 18 (IL-18), named IL-18 type 2, in human serum. Serum IL-18 levels and their effect on IgE levels were examined in 18 patients with atopic dermatitis (AD) with no other allergic symptoms. Three of these patients showed high IL-18 type 2 concentrations (25-100 ng/ml) in their blood serum, and this IL-18 type 2 was detectable only with our established ELISA system. In contrast, the level of the conventional form of IL-18 (type 1) was found to be 50-400 pg/ml in all patients by the commercially available ELISA. The levels of type 1 IL-18 showed no correlation with those of type 2 and approximately 2-fold higher in AD patients than in normal subjects. IL-12 p40 and IgE levels were correlated in the patients with no IL-18 type 2, and interestingly, relatively low IgE concentrations were detected in the three IL-18 type 2-positive patients. They showed considerable levels of IL-12 p40 unlike normal subjects. The IFNgamma-inducing activity of IL-18 type 2 was >100-fold less potent by weight ratio than that of a recombinant 'active' IL-18 preparation, even after the treatment with Caspase 1. Although the relationship between AD and serum IgE levels is not clear cut, IL-18 type 2 appears to play some roles in the Th2-polarization involving IgE production in association with immune responses occurring in local inflammatory milieu such as atopic lesions.     

IFN-gamma plays a dominant role in upregulation of Candida-specific IgE synthesis in patients with atopic dermatitis

BACKGROUND: Although Candida albicans (CA) is known to induce Th1 clones that suppress IgE synthesis, serum IgE antibody against CA is often increased in atopic patients. This study aims to elucidate the mechanism of IgE synthesis against CA in atopic patients. METHODS: We measured the production of IL-4 and IFN-gamma by peripheral blood mononuclear cells (PBMCs) from atopic patients upon stimulation with CA and examined the correlation with the level of serum IgE antibody against CA. Results: The level of serum CA-specific IgE antibody (CA-IgE) was significantly higher in patients with atopic dermatitis (AD) than in patients with bronchial asthma (BA) (geometric mean = 3.6 vs. 0.27 U(A)/ml, p < 0.02) (U(A) = unit allergen), while there was no difference in the level of house dust mite-specific IgE antibody between them (67.6 vs. 87.1 U(A)/ml). Although IL-4 production by PBMCs upon stimulation with CA in patients with AD was not significantly different from that in patients with BA (mean = 359.1 vs. 515.3 fg/ml), IFN-gamma production was significantly lower in the former than in the latter group (8.1 vs. 56.2 pg/ml, p < 0.001). Consequently, the ratio of IL-4/IFN-gamma production was apparently higher in patients with AD than in those with BA, which corresponds to the difference between them in the level of serum CA-IgE. A significant negative correlation was seen in patients with AD between IFN-gamma production by CA-stimulated PBMCs and the level of serum CA-IgE (p < 0.05). CONCLUSIONS: IgE synthesis against CA in atopic patients may be precipitated not by enhancing IL-4 production, but by reducing IFN-gamma secretion.     

IMMUNE RESPONSES IN AUTOIMMUNE HEPATITIS: EFFECT OF PREDNISONE AND AZATHIOPRINE TREATMENT: CASE REPORT

The role of the immune response in autoimmune hepatitis has not been studied before and after prednisone and azathioprine treatment. Distributions of blood lymphocytes (CD4+, CD8+, CD19+, CD23+, CD16/56+), levels of serum immunoglobulins (IgM, IgG, IgE, IgA) and cytokines (IFN-γ, IL-4, IL-12, TNFα ) were studied in a child (f/14 y/o) with autoimmune hepatitis before and after prednisone (20 mg/d) and azathioprine (50 mg/d) treatment (nephelometry, UniCAP Total IgE Fluoroenzymeimmunoassay, flow cytometry, cytokine ELISA). Patient was studied for 0-2.5 yrs; treatment was initiated 12 weeks post diagnosis. Numbers of CD4+ T cells increased (50%), while CD19+ and CD23+ cells decreased (>50%) post treatment; other lymphocyte subsets were unaffected by treatment. Serum IgG and IgE levels decreased (>50%) after treatment; serum IgM and IgA were within normal range and were not affected by treatment High levels of IFN-γ (5-23 pg/ml) were initially detected in serum, which decreased after treatment (<0.1 pg/ml). Furthermore, low levels of IL-4 (0.2 pg/mL) were detected before treatment, which were not detected after treatment (<0.1 pg/ml). In contrast, before treatment, IL-12 and TNFα were not detected in serum; however after treatment the levels of IL-12 and TNFα dramatically increased. Prednisone and azathioprine treatment decreased total serum IgG, IgE, IFN-γ and IL-4 levels, and blood CD19+ and CD23+ cells; however serum IL-12, TNFα and blood CD4+ T cells increased with treatment. Understanding immunomodulation in autoimmune hepatitis will provide better insight and mechanisms of this disease and may tailor more effective therapeutic intervention.     

Proinflammatory cytokine (IL-1beta, IL-6, IL-12, IL-18 and TNF-alpha) levels in sera of patients with subacute cutaneous lupus erythematosus (SCLE)

Subacute cutaneous lupus erythematosus (SCLE) is a subset of lupus erythematosus that identifies patients with clinically recognized erythematous, nonscarring lesions, photosensitivity and serologic abnormalities. Anti-Ro (SS-A) antibodies are considered to be a typical immunopathologic marker of SCLE. Autoimmune diseases have been also characterized by the disturbances in the cytokine network. The aim of this study was to compare the concentrations of proinflammatory cytokines (IL-1beta, IL-6, IL-12, IL-18 and TNF-alpha) in serum of ANA-positive (antibody against nuclear antigen) and ANA-negative patients with SCLE. Sera samples were collected from 15 patients with SCLE (9 ANA-positive and 6 ANA-negative ones). The preliminary identification of autoantibodies as well as their titers was determined on HEp-2 cells using IIF method. Western blotting (EUROIMMUN) was applied to verify the results of IIF. Proinflammatory cytokine concentrations in the patients' sera samples were determined by enzyme-linked immunosorbent assay (ELISA) (Bender MedSystems). The levels of IL-12 were higher in ANA-positive patients than in ANA-negative subgroups [median (interquartile range), 330 pg/ml (128-708 pg/ml) versus 39.4 pg/ml (31.25-80 pg/ml)]. Similar differences were observed in the level of IL-18 [median (interquartile range), 508.4 pg/ml (180-1222 pg/ml) versus 100.5 pg/ml (78.1-154 pg/ml)]. The differences in TNF-alpha levels between the groups of ANA-positive and ANA-negative patients were at the verge of statistical significance, p<0.05. The sera levels of IL-1beta and IL-6 were low and of no significant difference concerning the ANA-positive and ANA-negative subgroups. Since serum levels of IL-12 and IL-18 were higher in ANA-positive patients than in ANA-negative patients, these cytokines might play an important role in the inflammatory process in SCLE.     

Determination of serum interleukin-6 concentration by an enzyme-linked immunosorbent assay in patients with paraproteinemia]

A sensitive enzyme-linked immunosorbent assay of human interleukin-6 (IL-6) was developed to measure the serum IL-6 by Fujirebio INC. Its sensitivity was 3 pg/ml and its analytical range was from 3 to 200 pg/ml. Its precision, reproducibility, and sensitivity were quite satisfactory. The serum IL-6 levels in 200 normal individuals were less than 3 pg/ml. Serum IL-6 concentration in patients with malignant and benign monoclonal gammopathy (BMG) was determined by an ELISA. Serum IL-6 concentration in patients with Bence Jones protein (BJP) type multiple myeloma (MM) (n = 12) was 12.3 +/- 12.7 (mean +/- SD) pg/ml, BJP and IgG type MM (n = 4) 11.5 +/- 5.8 pg/ml, IgM type MM (n = 11) 11.1 +/- 17.5 pg/ml and IgA type MM (n = 4) 4.0 +/- 1.4 pg/ml. They were significantly higher in BJP, BJP and IgG, and IgM types than in normal individuals. The cases with the serum IL-6 of more than 10 pg/ml were move frequent in MM (32.8%) than in BMG (16.3%). The correlation between the serum IL-6 and C-reactive protein (CRP) was r = 0.563 in patients with MM (n = 61) and r = 0.498 in BMG (n = 43). Besides, during the clinical course of a patient with IgG-lambda and BJP-lambda type MM, serum IL-6 concentration responded more sharply than CRP and WBC on candida infection. The measurement of serum IL-6 therefore, seemed not useful for differential diagnosis of monoclonal gammopathies, but it seemed useful as an acute phase protein as well as CRP.     

Elevated Serum Levels of IL-21 in Kawasaki Disease

Purpose

The serum level of immunoglobulin (Ig)E has been reported to be elevated in patients with Kawasaki disease (KD). We investigated whether interleukin (IL)-21, rather than IL-4, could be related to elevated serum levels of IgE in KD.

Methods

Sera from 48 patients with KD and 12 controls with high fever were collected to determine the level of IgE using an immunoassay system and the levels of IL-4 and IL-21 were determined using enzyme-linked immunosorbent assay kits.

Results

The median IL-21 level of KD patients was significantly elevated, at 499.5 pg/mL (range: <62.5-1,544 pg/mL), whereas that of controls was <62.5 pg/mL (<62.5-825 pg/mL; P<0.001). The median IL-4 level of KD patients was not elevated (4.0 pg/mL; 2.1-7.6 pg/mL). The median level of total IgE in KD patients was 58.0 IU/mL (5-1,109 IU/mL). No statistically significant correlation was found between IL-21 and total IgE levels (Spearman''s R=0.2; P=0.19).

Conclusions

Patients with KD have elevated levels of IL-21 in the serum. IL-21 may play a role in the pathogenesis of KD.     

Enhanced interleukin-18 levels in the peripheral blood of children with coeliac disease

Coeliac disease (CoD) is a small intestinal disorder characterized by villous atrophy, crypt cell hyperplasia and an increased production of T helper cell type 1 (Th1) cytokines. Interleukin (IL)-18 is a pro-inflammatory cytokine that has a crucial role in maintaining the Th1 response. In this study, the serum levels of IL-18 were measured in children with CoD or other gastrointestinal diseases in order to evaluate the possibility of using IL-18 as a disease activity marker. IL-18 levels were higher in samples from CoD patients [median 443 pg/ml (148-885)] compared to healthy controls [median 205 pg/ml (11-379)], P <0.05. In contrast, the levels of IL-18 were not enhanced significantly in the serum from patients with inflammatory bowel disease (IBD) [median 324 pg/ml (207-546)] or in the disease control group [median 303 pg/ml (2-689)]. In CoD patients, after 2 weeks of gluten challenge (GC), serum IL-18 was unchanged [median 268 pg/ml (59-458)] compared to patients on a gluten-free diet [median 220 pg/ml (53-600)], while IL-18 was increased after 12 weeks of GC [median 551 pg/ml (94-952)], P <0.01. The IL-18 levels correlated with IgA anti-transglutaminase antibody levels (rs=0.59, P=0.016) in serum from untreated CoD patients, and IL-18 also followed the degree of small intestinal villous atrophy in 12 out of 19 CoD patients. Our results support the view that serum IL-18 concentrations in children with CoD follow disease activity, suggesting a role for IL-18 in the induction of an inflammatory Th1-response after gluten exposure.     

畅迪治疗小儿异位性皮炎疗效观察及其对血清因子水平的影响

目的 检测异位性皮炎患儿血清中IL-4、IFN-γ水平变化,探讨Thl与Th2的平衡与异位性皮炎之间的关系及畅迪对血清因子的影响.方法 采用ELISA法检测30例健康小儿和采用粉尘螨滴剂治疗前后的30例异位性皮炎患儿血清中IL-4,IFN-γ水平,并观察药物的临床疗效.结果 患儿治疗前血清中IL-4浓度(98.64±2...