肺螨病患者血清免疫球蛋白水平的测定

为了探索肺螨病的发病机理,我们以免疫单扩散法测定51例肺螨病患者血清IgG、IgA、IgM含量,并以BA-ELISA法检测16例患者的IgE水平。结果显示,患者血清IgG均值169.77±46.91(单位Iu/ml,下同),15例阴性对照血清为127.65±51.46(P<0.01);患者IgA均值308.39±91.83,对照血清为190.59±85.35(P<0.01);IgM两组分别为213.78±59.89和194.12     

粉尘螨浸液免疫治疗螨性哮喘患者的免疫功能观察

目的　探讨粉尘螨变应原浸液免疫治疗对螨性哮喘患者免疫功能的影响。　方法　用粉尘螨浸液和平喘药分别对实验组和对照组螨性哮喘患者进行免疫治疗和对症治疗 ,用ELISA法检测患者治疗前、后血清总IgE、螨特异性IgE、螨特异性IgG、IL 2和IL 4水平 ,用生物素 链霉亲和素法检测患者治疗前、后外周血CD3 + 、CD4+ 、CD8+ 和CD4+ /CD8+ 。　结果　患者血清总IgE、螨特异性IgE、螨特异性IgG治疗前分别为 (2 92 .3 5± 112 .46)IU/ml、(2 5 1.68±12 5 .15 )IU /ml和 (5 87.64± 3 5 4.68)IU /ml ,治疗后分别为 (2 65 .74± 12 4.67)IU /ml、(2 97.5 6± 172 .2 7)IU /ml和(82 4.5 1± 42 8.2 6)IU /ml,两者相比 ,螨特异性IgG显著上升 (P <0 .0 1)。外周血CD3 + 、CD4+ 、CD8+ 、CD4+ /CD8+ 治疗前分别为 (5 5 .87± 7.2 3 ) %、(3 8.43± 6.43 ) %、(3 0 .14± 5 .2 4) %和 1.2 6± 0 .5 6,治疗后分别为 (65 .83± 6.5 5 ) %、(4 2 .72± 6.2 6) %、(2 8.5 7± 4.67) %和 1.5 8± 0 .62 ,CD4+ /CD8+ 比值上升 ,差异显著 (P <0 .0 5～P <0 .0 1) ;治疗前、后IL 2和IL 4的水平分别为 (2 .16± 0 .3 8) pg/ml、(3 .49± 0 .5 7) pg/ml和 (1.64± 0 .82 )pg/ml、(1.0 3± 0 .78) pg/ml ,差异均具显著性 (P <0 .0     

腹泻患者粉螨感染调查

目的探讨粉螨致腹泻的发生特点。方法对腹泻患者进行粪螨分离、皮肤挑刺试验、血清总IgE、螨特异性IgE检测。其中粪螨分离采用饱和盐水漂浮法,抗体检测使用ELISA法。结果共检查241例腹泻患者,粪螨阳性率为17.01%(41/241),男、女粪螨阳性率分别为15.86%(23/145)和18.75%(18/96),差异无显著性(χ2=0.34,P>0.05);皮肤挑刺试验"、"、"+"、"±"和"?"者分别占9.13%(22/241)、7.47%(18/241)、5.81%(14/241)、4.98%(12/241)和72.61%(175/241)。粪螨阳性和阴性腹泻患者血清总IgE、螨特异性IgE分别为(165.72±78.55)IU/ml、(132.44±26.80)IU/ml和(145.22±82.47)IU/ml、(67.35±45.28)IU/ml,差异均具显著性(P<0.01)。从事中药材、粮食储藏和加工者粪螨阳性率为26.74%(23/86),其他职业人群粪螨阳性率为11.61%(18/155),差异具显著性(χ2=8.97,P<0.01)。结论粉螨寄生人体肠道可导致粉螨性腹泻,并使患者血清总IgE、螨特异性IgE升高,粉螨浸液皮肤挑刺试验阳性。腹泻患者粉螨感染的发生与所从事的职业有一定关系,但与性别无关。     

成年支气管哮喘病人的血清免疫球蛋白缺乏

作者对500例支气管哮喘病人作血清免疫球蛋白测定、常规肺功能检查,并详询病史。另对85例正常人测定血清免疫球蛋白,平均正常值为:IgG1364±86毫克/100毫升(正常下限800毫克/100毫升);IgM150±12毫克/100毫升(60毫克/100毫升);IgA236±14毫克/100毫升(100毫克/100毫升);IgE147±25毫微克/毫升(30毫微克/毫升)。 500例中发生免疫球蛋白缺乏者占18.6％(93/500)。其中以IgG缺乏者最多,占44％(41例),IgG平均值为682±37毫克/100毫升。其次为IgE缺乏18例、IgA缺乏11例、IgM缺乏8例。其余少数病例表现为同时有数种免疫球蛋白缺乏。不同类型的支气管哮喘患者,其测定结果如下: 1.过敏性哮喘329例(65.8％),对常见家庭空     

小儿免疫功能检查的正常参考值与意义

小儿免疫力水平具有明显的年龄相关特征。现分述如下。一、体液免疫的检测(一)血清蛋白电泳:γ球蛋白<6%,提示低丙种球蛋白血症;>15g/L(5岁以下)或>20g/L(5岁以上),称为高丙种球蛋白血症。(二)免疫球蛋白(Ig)检测:测定血清IgG、IgA、IgM和IgE的含量。HgG、IgA、IgM和IgE的正     

原发性高血压患者免疫球蛋白测定

作者对161例原发性高血压患者,(患者及其家族均无过敏、自身免疫及肝脏病,3个月内也未患过会影响免疫球蛋白的感染疾病、也没有服用避孕药物)与相同年龄、性别及无高血压家族史的健康成人78例进行对照测定IgA、IgG及IgM。结果: 1.Ig测定:(1)未治组男性45例,平均IgA2.4±0.3 g/l、IgG 12.0±0.8g/l;对照组42例,平均IgA1.7±0.2g/l、IgG9.7±0.6g/l。二组P值均<0.0005。 (2)未治组女性35例,平均IgA2.4±0.3 g/l、IgG 12.1±0.9 g/l。对照组35例,平均IgA 1.8±     

人免疫缺陷病毒携带者和艾滋病患者血清IFN-γ、IL-10和免疫球蛋白的检测及其临床意义

目的　探讨IFN γ和IL 10在人免疫缺陷病毒 (HIV )感染中的意义。方法　利用双抗体夹心ELISA法检测 3 0例HIV携带者、16例艾滋病 (AIDS)患者血清IFN γ和IL 10水平 ,采用透射比浊法检测血清IgG、IgA和IgM水平 ,选择 2 3名健康人作对照组。 结果　AIDS患者IFN γ水平为 (4 .5± 2 .7)pg/ml,对照组为 (8.2± 4.1) pg/ml,AIDS患者明显低于对照组 (P <0 .0 5 ) ,HIV携带者、AIDS患者血清中IL 10水平明显高于对照组 [(12 .4± 7.4) pg/ml ,(2 8.1± 11.2 ) pg/mlVs(6.9± 3 .8)pg/ml ,P <0 .0 1] ,且AIDS组高于HIV携带组 (P <0 .0 1)。HIV携带者和AIDS患者血清中免疫球蛋白水平均高于对照组。结论　HIV携带者存在Th1型免疫应答缺陷 ,Th2型免疫应答与感染慢性化及疾病持续发展有关。     

胃炎及消化性溃疡患者血清Hp CagA IgG的检测

目的 cagA 基因阳性 Hp 感染与慢性胃炎、消化性溃疡的关系。方法用 ELISA 检测55例慢性胃炎和33例消化性溃疡患者血清中 Hp CagA IgG 水平。结果慢性胃炎患者的 CagA IgG 阳性率为47.3％,其阳性血清的平均 CagA IgG 水平为27.9±12.9U/ml,而消化性溃疡患者之阳性率为72.7％,CagA IgG 水平为41.6±18.0U/ml,两组比较相差显著(p<0.05和 p<0.01)。结论 CagA 阳性 Hp 具有致溃疡作用。     

类圆线虫病免疫球蛋白特别关于血清IgE升高的研究

许多蠕虫病如蛔虫病、肠毛细线虫病和血吸虫病患者血清中IgE水平常升高。作者于南斯拉夫对28例确诊的类圆线虫病患者用单向辐射状扩散试验方法测定了血清中IgG、IgA、IgM和IgE的浓度,以及十二指肠内容物和粪便中的IgG、IgA和IgM的     

钩虫病感染者血清免疫球蛋白水平的检测意义

目的 探讨钩虫病感染者血清免疫球蛋白水平的临床测定价值。方法 研究收集了本地区2018年1月至2022年12月收治的68例钩虫病感染者作为研究组，选取同期健康体检者65例作为对照组。测定研究组与对照组血清免疫球蛋白IgA、IgG、IgM和IgE水平。结果 研究组的lgA、IgM与对照组比较差异无统计学意义(P>0.05),研究组IgG、IgE水平均高于对照组(P<0.05);轻度感染者与中、重度感染者lgA、IgG、IgM水平比较差异无统计学意义(P>0.05),但轻度感染者IgE水平显著低于中、重度感染者(P<0.05);不同性别血清IgA、IgG、IgM和IgE水平比较无统计学差异(P>0.05)。结论 钩虫病感染血清免疫球蛋白IgG、IgE水平显著升高，其可作为检测是否感染该种疾病的有效项目，而IgE可作为核心检测项目，用于区分疾病的严重程度。     

Immunologic aspects of leprosy with special reference to the study of immunoglobulin E.

The serum levels of IgG, IgM, IgD and IgE have been determined in normal subjects, individuals suffering from ascariasis and filariasis, and in leprosy patients. Allergic and parasitic diseases were excluded in these normal subjects and in leprosy patients before they were taken for the study of their serum IgE. The circulating IgG was significantly raised in both tuberculoid and lepromatous forms of leprosy and also in filariasis; IgM was significantly elevated in only the lepromatous form of leprosy, ascariasis as well as in filariasis; while IgA was exclusively raised in both forms of leprosy. IgD was detected in the sera of more subjects with ascariasis and filariasis than in normal individuals and leprosy patients. The mean level of serum IgE in 35 normal Indian subjects was 1,025 I.U. per ml, 9 of them (25%) having serum IgE concentrations above 700 I.U. per ml. The highest mean level of serum IgE was found in ascariasis (7,328 I.U. per ml), followed by leprosy (5,180 I.U. per ml), and filariasis (4,244 I.U. per ml). Furthermore, no significant difference between the mean serum IgE levels of tuberculoid and lepromatous leprosy patients was observed. Although the rise of serum IgE level in these parasitic diseases, as well as in leprosy, was spectacular, the augmented synthesis of this unique class of immunoglobulins was not invariably present in all patients. The results have been discussed on the basis of recent ideas on immunoglobulin synthesis.     

Immunoglobulins in tears and sera in patients with atopic dermatitis.

The aim of the study was to investigate the role of circulating (i.e., present in the serum) and locally produced (i.e., in the lamina propria of mucous membranes) immunoglobulins including IgE. The IgG, IgA, IgM immunoglobulins, and IgE (total and specific) were measured in patients' sera with atopic dermatitis (AD) (n = 93). As control subjects 83 healthy volunteers, matched for sex and age, were included. The IgG and IgM levels were within the normal range. Mean value of the total IgA (2.55 +/- 0.26 g/L, in controls 1.49 +/- 0.32 g/L) and IgE (609 IU/mL, in controls below 40 IU/mL) levels were significantly elevated (p < 0.05) in sera of AD patients. Based on the serum total IgE levels (above or below 40 IU/mL) the patients were divided into RAST-positive and RAST-negative types of allergy, respectively. RAST-positive AD (n = 79) showed hypersensitivity to inhalant and food allergens determined by the specific IgE test. The majority of RAST-positive AD cases (n = 68) presented only skin manifestations, while the rest of the patients (n = 11) had rhinoconjunctivitis as well. RAST-positive AD patients with rhinoconjunctivitis showed an increased IgE level in tears (above 10 IU/mL). The specific IgE test positivity in tears correlated with elevated serum total IgE levels and specific IgE positivity (r = 0.925). Total and allergen-specific IgE in the tears can be used to diagnose allergy in vitro. It is believed that the mucosal permeability is enhanced in the atopic inflammatory process, and this may facilitate the transmission of environmental allergens.     

Serum immunoglobulin levels and survival rates in bronchogenic carcinoma patients

Serum immunoglobulin IgG, IgA and IgM levels were estimated in 112 patients with bronchogenic carcinoma, and the obtained values were as follows: IgG = 1762 +/- 595 mg/100 ml; IgA = 332 +/- 104 mg/100 ml; IgM = 157 +/- 76 mg/100 ml. Subsequently the patients were divided in a group of 74 patients with epidermoid carcinoma, and a group of 38 patients with small cell anaplastic carcinoma of the bronchus. In patients with epidermoid carcinoma, in cases with disseminated disease the mean survival was shorter (7.9 months) when compared to the mean survival of patients with localized disease (20.8 months). Similarly, a depression of lymphocyte counts was observed in cases with disseminated disease. In cases with IgA concentrations ranging from 300 to 410 mg/100 ml longer survival rates were observed. In patients with small cell anaplastic carcinoma variety, the survival rates in patients with localized disease were almost identical with those in patients with disseminated disease (11.4 months versus 9.9 months). The longest survival rates were observed in cases with IgG concentrations ranging from 1600 to 2100 mg/100 ml, and IgM concentrations ranging from 190 to 320 mg/100 ml of serum.     

A comparison of humoral responses to Schistosoma haematobium in areas with low and high levels of infection

Antibody responses to Schistosoma haematobium of 280 Zimbabweans were studied in two areas of differing infection levels. 133 of the subjects came from a low infection area with a prevalence of 33.8% and geometric mean infection intensity of 0.8 eggs per 10 ml of urine, while 147 of the subjects came from a high infection area with a prevalence of 62.7% and geometric mean intensity of 3.2 eggs per 10 ml of urine. Both the age-prevalence and age-intensity curves exhibited a peak shift. IgA, IgE, IgG, IgG1, IgG2, IgG3, IgG4, and IgM antibody levels against soluble egg antigen (SEA) and whole worm homogenate (WWH) were assayed by ELISA. Females produced significantly more anti-SEA IgG1, IgG4, IgM, anti-WWH IgE and IgG1. People from the high infection area produced significantly more anti-SEA IgE, IgG3 and anti-WWH IgG3 and significantly lower levels of anti-SEA IgA, IgM and anti-WWH IgM when the effects of infection intensity, sex and age had been allowed for. The age profiles of anti-SEA IgA, IgG and anti-WWH IgA and IgM reflected current levels of infection while anti-WWH IgG1, IgG2 and anti-SEA IgG1 evolved more slowly with age, and anti-WWH IgE rose with age in both areas. Some antibody responses, anti-SEA/WWH IgM, anti-SEA IgG1 and possibly anti-SEA/WWH IgA showed different age profiles in the two areas, with changes in antibody levels occurring at a younger age in the high infection area suggesting that immune responses are evolving more rapidly in residents of this area. This result clearly demonstrates that antibody levels are not a function of age alone.     

Immunoglobulins and IgG subclasses in patients with inflammatory bowel disease.

BACKGROUND/AIMS: Serum immunoglobulin levels and distribution are altered in patients with inflammatory bowel disease (IBD). The purpose of this study is to examine the value of serum concentration of IgG subclasses for the diagnosis and evaluation of disease activity of IBD and to assess possible differences in the immunoglobulin changes between patients with Crohn's disease (CD) and ulcerative colitis (UC). METHODOLOGY: We measured serum IgG and IgG subclasses concentrations as well as IgA, IgM, ESR, CRP, elastase levels and granulocyte count of 96 patients with chronic IBD (69 with CD and 27 with UC) with various levels of disease activity. RESULTS: The total IgG levels in patients with UC were significantly increased, for both active and inactive disease, compared to those of patients with CD. The IgG1 concentration in patients with UC (7+/-0.77 mg/ml) was significantly higher than in patients with CD (5.6+/-0.61 mg/ml) (p<0.02). The IgG2 levels in CD were significantly higher than those of UC (4.6+/-0.64 vs. 3.8+/-0.57 mg/ml) (p<0.05). The IgG4 levels of UC patients were significantly higher than those of the CD patients (0.39+/-0.06 vs. 0.29+/-0.05 mg/ml) (p<0.05). No significant differences were found in the serum concentrations of IgG3, IgA and IgM between the two groups. There was a negative correlation between the various indices of disease activity and the concentration of IgG3 in patients with UC (p<0.01), and a positive correlation in patients with CD for IgG1 (p<0.001), IgG2 (p<0.001) and IgA (p<0.01). CONCLUSIONS: In IBD some of the IgG immunoglobulin subclass concentration changes correlate, positively or negatively, with disease activity and therefore could be used as additional markers of it. However, serum immunoglobulin levels cannot be used to differentiate between UC and CD.     

IgM rheumatoid factor (RF), IgA RF, IgE RF, and IgG RF detected by ELISA in rheumatoid arthritis.

One hundred patients with rheumatoid arthritis (RA), of whom 73 were seropositive by latex or Waaler-Rose (WR) assays, or both, 100 healthy subjects, and 102 diseased controls (22 patients with systemic lupus erythematosus (SLE) and 80 with bronchial asthma) were evaluated for the presence of IgM rheumatoid factor (RF), IgA RF, IgE RF, and IgG RF by an enzyme linked immunosorbent assay (ELISA). Ninety two per cent, 65%, 68%, and 66% of the patients with RA were found to be positive for IgM, IgA, IgE, and IgG respectively. A positive correlation existed between the levels of IgM RF and IgA RF on the one hand and disease activity on the other, and the levels of IgM RF and IgA RF correlated with the levels of circulating immune complexes as measured by a C1q binding assay. The presence of extra-articular features also correlated positively with the levels of IgA RF and IgE RF. Five out of six patients with Sjögren''s syndrome had very high levels of IgA RF. Of 47 patients typed for HLA-DR, DR1 and DR2 were significantly more frequent in those with the highest levels of IgM RF. Conversely, DR3 was associated with low levels or absence of IgA RF and IgE RF. These results suggest that immune response genes may regulate the level of different RF isotypes. The frequencies of IgM, IgA, IgE, and IgG RF were 59%, 36%, 9%, and 27% respectively in SLE and 25%, 2.5%, 70%, and 59% in bronchial asthma.     

棘球蚴病患者IgG抗体阴性反应血清再检测的研究

目的　探索棘球蚴病患者抗体应答假阴性反应原因 ,以改进棘球蚴病的免疫诊断方法。　方法　采用间接ELISA和双抗体夹心ELISA方法 ,检测 42例IgG抗体阴性反应棘球蚴病患者血清的IgG亚类 (IgG1、IgG2、IgG3和IgG4 )、IgA、IgM、IgE抗体及抗原和循环免疫复合物。　 结果　 42例阴性血清中 ,32例IgG亚类或IgA、IgM、IgE抗体阳性 ,1 0例血清抗体全部阴性。其中IgG1、IgG4及IgA、IgM、IgE的检出率明显高于正常人 ,分别为 42 .9%、1 1 .9%、2 8.6 %、2 6 .2 %和 2 1 .4 %。小儿的IgM高于成人。肝棘球蚴病患者的IgG亚类高于肺棘球蚴病患者。IgG1与其它抗体联合检测 ,以IgG1 +IgA +IgM检出率最高 ,为 64 .3 %。IgG阴性患者血清的CAg和CIC阳性率分别为 2 8.57%及30 .95 %。　结论　抗棘球蚴总IgG抗体表达水平低下 ,抗体表达种类不同及循环免疫复合物的形成 ,是造成棘球蚴病患者IgG抗体反应阴性的主要原因。IgG1 +IgA +IgM检测可提高棘球蚴病患者的诊断率     

Markedly elevated serum IgE levels following allogeneic and syngeneic bone marrow transplantation

Serum IgE levels were studied in 25 bone marrow transplant recipients (in 12 patients twice weekly and in 13 patients, at random). A 2-748- fold increase in serum IgE was recorded in 20 of the 25 patients after transplantation, the highest IgE value observed being 8,000 kU/liter. The IgE elevation appeared concomitantly with acute graft-versus-host disease (GVHD) in 14 patients. Both events occurred on day 24 +/- 2 (mean +/- SE). When the acute GVHD was diagnosed, there was a significant increase in serum IgE as compared to the first posttransplantation value. In one patient in whom GVHD recurred, a second IgE peak was seen, and in another patient with flaring GVHD, IgE levels increased on several occasions. In 6 patients without clinical signs of GVHD, a rise in IgE occurred on day 35 +/- 12. One of these patients was grafted with marrow from her identical twin. The rise in IgE did not correlate with an elevated proportion of eosinophil granulocytes. In the majority of the patients, no correspondent increases in serum IgG, IgA, or IgM were seen during the period with increased IgE after transplantation.     

Prediction of Rejection in Renal Transplantation by Immune Parameters

Background: Monitoring of phenotypic characteristics of T-lymphocytes in peripheral blood is commonly performed to give the clinical parameters in the management of kidney transplant recipients.   Objective: To predict rejection in renal transplantation by immune parameters. Methods: 16 non-diabetic kidney transplant candidates (4 females and 12 males, age = 20-65 yr, first time transplant) were selected. The transplanted patients were divided into two groups based on the rejection during 3 weeks post transplant: group I (n = 9) without rejection and group II (n = 7) with a rejection episode. Immune parameters including lymphocytes subpopulations (by flowcytometry) and immunoglobulin classes (IgM, IgG, IgA and IgE by nephlometric assay) before and 45 days after transplantation were determined.   Results: The results of this investigation showed that the level of immunoglobulin IgG, IgM, IgA and IgE decreased post transplantation due to immunosuppressive drugs. CD3, CD4, CD8 T cells count, CD56 NK cells count and CD20 B cells count pre- and post-transplantation did not show any significant differences. The amount of IgE (220   vs. 462 IU/ml), CD3 (62% vs. 69.7%) and CD4 (35% vs. 41.3%) cells increased in group II during rejection episode pre-transplantation. In addition, IgA increased pretransplantation in group I those without rejection episode in comparison with group II with a rejection episode. Forty five days post transplantation IgA (209   vs. 152 mg/dl), IgG (1009 vs. 703 mg/dl) and CD20 (15%   vs. 10%) increased in group I patients. Conclusion: It is suggestive that pre-transplantation increases IgE, CD3 and CD4 are predictive of acute rejection.