伤寒患者血清TNF,IL—2,sIL—2R水平的研究

为了解肿瘤坏死因子（ＴＮＦ）、白细胞介素２（ＩＬ－２）和可溶性白细胞介素２受体（ｓＩＬ－２Ｒ）在伤寒发病中的作用，以双抗体夹心法检测２７例伤寒患者及１６例正常人血清ＴＮＦ、ＩＬ－２和ｓＩＬ－２Ｒ水平。结果发现，伤寒患者血清ＴＮＦ水平和ｓＩＬ－２Ｒ水平均明显高于正常人水平（Ｐ＜０．０１）。而血清ＩＬ－２水平显著低于正常对照（Ｐ＜０．０１）。对１５例伤寒患者各病期血清ＴＮＦ、ＩＬ－２和ｓＩＬ－２Ｒ水平动态观察发现伤寒患者血清ＴＮＦ、ｓＩＬ－２Ｒ水平动态变化与患者体温、病期、病情变化具有密切关系。伴肝功能损伤和有诸如消化道出血、肺炎、急性肾衰等并发症及复发性伤寒的患者其血清ＴＮＦ、ｓＩＬ－２Ｒ水平明显高于无肝功能损伤及无并发症的患者。结果提示，临床检测伤寒患者血清ＴＮＦ、ｓＩＬ－２Ｒ除可协助诊断外，对于患者病情、病期、预后的判断及治疗效果的观察均具有重要意义，因此可作为临床观察伤寒病情及判断预后的监测指标。血清ＩＬ－２检测对于伤寒的诊断有一定帮助，但作为判断临床病情、病期及预后的指标意义不大     

急性白血病患者IL—6,TNF—α和sIL—6R含量及其与白血病负荷的？…

应用生物学检测法，ＥＬＩＳＡ法和间接免疫荧光分析了２４例急性白血病患者外周血ＩＬ－６，ｓＩＬ－６Ｒ和ＴＮＦ－α的含量及其与白血病细胞负荷的相关性。结果显示：（１）急性白血病患者外周血ＩＬ－６，ｓＩＬ－６Ｒ及ＴＮＦ－α水平明显升高，其中急性Ｂ淋巴性白血病的ＩＬ－６，ｓＩＬ－６Ｒ急性Ｔ淋巴性白血病的ＴＮＦ－升高尤为明显；（２）Ｂ－ＡＬＬ的ＩＬ－６，ＴＮＦ－α及Ｔ－ＡＬＬ的ＴＮＦ－α水平与白血病细胞负     

人巨细胞病毒感染对肾移植受者血清sIL－2R水平的影响

用ＰＣＲ检测ＨＣＭＶ－ＤＮＡ，ＥＬＩＳＡ法检测ＨＣＭＶ－ＩｇＭ及ＩｇＧ，以诊断肾移植受者ＨＣＭＶ感染。用双抗体夹心法ＥＬＩＳＡ检测６５例肾移植受者血清ｓＩＬ－２Ｒ水平，结果表明：ＨＣＭＶ感染后宿主血清ｓＩＬ－２Ｒ水平明显增高（Ｐ＜０．０１），且ＨＣＭＶ疾病组ｓＩＬ－２Ｒ增高程度大于无症状感染组（Ｐ＜０．０１）；６例原发性ＨＣＭＶ感染者ｓＩＬ－２Ｒ水平与ＩｇＭ水平呈正相关（ｒ＝０．９９０８），提示随感染程度增加，血清ｓＩＬ－２Ｒ水平随之增高，还发现血清ｓＩＬ－２Ｒ水平与Ｃ９４／ＣＤ８比值是负相关（ｒ＝－０．９７８９），说明ＨＣＭｖ感染后ｓＩＬ－２Ｒ水平增高与Ｔ细胞亚群改变有关，反之也说明ｓＩＬ－２Ｒ增高程度可表明体内免疫抑制状态。对于ＨＣＭＶ感染后血清ｓＩＬ－２Ｒ水平增高的机理有待进一步探讨。     

北芪对老龄机体细胞因子产生影响的实验研究

本文以１５月龄昆明鼠和６０～７２岁老龄人为对象，采用生物学活性检测法观察了北芪对老龄鼠脾细胞受ＣｏｎＡ刺激后产生ＩＬ－２，ＴＮＦ及ＩＦＮ－γ水平的影响，采用ＥＬＩＳＡ双抗体夹心法检测了老龄鼠脾细胞上清中ｓＩＬ－２Ｒ含量，实验结果证明老龄机体ＩＬ－２，ＴＮＦ和ＩＦＮ－γ分泌功能下降，ｓＩＬ－２Ｒ水平增高，服用北芪后明显地提高了老龄机体的ＩＬ－２，ＴＮＦ和ＩＦＮ－γ水平，降低了ｓＩＬ－２Ｒ水平，进而证     

原发性肝癌患者手术治疗前后检测可溶性白细胞介素2受体和肿瘤坏？…

应用双抗体酶联夹心法和放射免疫分析法检测了３０名正常人和３３例原发性肝癌患者血清中ｓＩＬ－２Ｒ和ＴＮＦ含量，结果表明：原发性肝癌患者手术前ｓＩＬ－２Ｒ，ＴＮＦ非常显著地高于正常人（Ｐ〈０．００１，Ｐ〈０．０１）；术后２周，血清ｓＩｌ－２Ｒ与正常人比较有差异（Ｐ〈０．０１），而ＴＮＦ则无差异（Ｐ〉０．０５），ＡＦＰ含量高低与ｓＩｌ－２和ＴＮＦ含量无关（ｒ＝０．３８２６，０．３７２５；Ｐ〉０．０５）。     

慢性乙型肝炎患者5种细胞因子水平的检测及其意义

目的 探讨病毒性乙型肝炎患者ｍＩＬ－２Ｒ,ｓＩＬ－２Ｒ,ＩＬ－６,ＩＬ－８和ＴＮＦ－α与乙肝发病的关系。方法 采用ＡＰＡＡＰ技术和ＥＬＩＳＡ法,检测９２例慢性乙型肝炎患者ｍＩＬ－２Ｒ,ｓＩＬ－２Ｒ,ＩＬ－６,ＩＬ－８和ＴＮＦ－α的水平。结果 慢性乙肝患者ｍＩＬ－２Ｒ的表达显著低于正常对照组（Ｐ〈０．０５）,在ＰＨＡ激活后与正常人基本一致,但仍较ＰＨＡ激活前显著增高（Ｐ〈０．０１）;慢性乙肝患者血清     

肝癌,肝硬变患者血清肿瘤坏死因子,白细胞介素2和可溶 …

用放射免疫分析和酶关免疫吸附分析，对２１例原发性肝炎、２０例肝硬为的ＴＮＡα、ＩＬ－２和ｓＩＬ－２Ｒ进行检测。原发性肝癌、肝硬变患者的ＴＮＦα和ｓＩＬ－２Ｒ均显著高于正常组（Ｐ〈０．０１），而ＩＬ－２低于对照组（Ｐ〈０．０１）。     

细胞因子水平与晚期胃癌患者治疗及预后相关研究

本文报道了２４９例晚期胃癌（Ⅲ～Ⅳ期）患者外周血单个核细胞（ＰＢＭＣ）产生ＩＬ－２水平及ＩＬ－２Ｒ表达，外周血清中ｓＩＬ－２Ｒ浓度与ＰＢＭＣ被ＰＨＡ－Ｐ诱生后产生ＩＦＮ－γ活性；并探讨了姑息性手术、化疗和中药治疗对晚期胃癌患者细胞免疫调节因子水平的影响。结果发现：晚期胃癌患者外周血ＰＢＭＣ产生ＩＬ－２及ＩＦＮ－γ能力及ＩＬ－２Ｒ表达均显著低于早期胃癌患者和正常对照组水平（Ｐ＜０．０１）；ｓＩＬ－２Ｒ水平前者明显低于后二者（Ｐ＜０．０１）。姑息手术治疗尽管对晚期胃癌患者的ＩＬ－２、ＩＬ－２Ｒ和ＩＦＮ－γ水平无显著影响，但可降低其ｓＩＬ－２Ｒ水平；而扶正抗癌冲剂则可是显著提高患者术后ＩＬ－２及ＩＦＮ－γ水平和ＩＬ－２Ｒ表达，同时降低ｓＩＬ－２Ｒ水平（Ｐ＜０．０１）；化疗有效晚期患者，则可导致其ｓＩＬ－２Ｒ水平下降，无效者则ｓＩＬ－２Ｒ水平无改变或继续升高。三年随访发现，晚期胃癌患者，术前ＩＬ－２产生水平高于１００Ｕ／ｍｌ，同时ｓＩＬ－２Ｒ水平低于１０００Ｕ／ｍｌ者，其三年生存率高。因而，这项研究对晚期胃癌治疗疗效判断及预后评价有指导意义。     

再生障碍性贫血患者免疫调节剂治疗前后TNF和IL—2水平变化及意义

为了探讨再生障碍性贫血（ＡＡ）的免疫发病机理及抗Ｔ淋巴细胞单克隆抗体（ＭｃＡｂ－Ｔ）的免疫调节治疗作用，采用放射免疫法检测３０例ＡＡ患者ＭｃＡｂ－Ｔ治疗前后血清肿瘤坏死因子（ＴＮＦ）和白细胞介素－２（ＩＬ－２）水平及其中１０例ＡＡ外周血核细胞（ＰＢＭＮＣ）体外诱生ＴＮＦ和ＩＬ－２水平的变化。结果表明，治疗前ＡＡ患者血清ＴＮＦ水平显著曾高（Ｐ〈０．０１），ＰＢＭＮＣ诱生的ＴＮＦ和ＩＬ－２水平均明显高     

阿米巴肝脓肿患者血清细胞因子水平与免疫防卫能力的研究

目的 了解阿米巴肝脓肿患者抗体的免疫防卫能力。方法 ＥＬＩＳＡ、比色法及流式细胞仪等检测了４０例阿米巴肝脓肿患者血清细胞因子ＴＮＦ－α,ＩＬ－６,ＩＬ－８,ｓＩＬ－２Ｒ,弓形虫感染率,ＮＯ,血液ＣＤ４／ＣＤ８Ｔ细胞,红细胞Ｃ３ｂ受体花环率（ＲＢＣ－Ｃ３ｂＲＲ）及免疫复合物花环率（ＲＢＣ－ＩＣＲ）。结果 ＴＮＦα,ＩＬ－,ＩＬ－８,ｓＩＬ－２Ｒ,ＮＯ,ＲＢＣ－ＴＣＲ显著高于正常对照组,ＲＢＣ－Ｃ３ｂ     

肾移植受者血清TNF-α、IL-6和sIL-2R水平变化及临床意义

目的:探讨肿瘤坏死因子-α(TNF-α)、白细胞介素-6(IL-6)和可溶性白细胞介素-2受体(sIL-2R)在肾移植术后急性排斥反应中的变化。方法:采用固相酶标记化学发光免疫分析技术动态监测36例患者肾移植前后血清TNF-α、IL-6和sIL-2R水平,并结合临床资料作全面分析。结果:肾移植受者术后第1天血清TNF-α、IL-6和sIL-2R均明显升高,其中移植稳定组血清IL-6和sIL-2R第1天出现峰值后开始下降,而TNF-α则在术后5天达峰值后开始下降,至第10天均接近术前水平。急性排斥组血清TNF-α、IL-6和sIL-2R水平与肾功能稳定组比较,差异有显著性(P<0.05),抗排斥治疗有效后迅速下降。而环孢素A中毒组与稳定组比较,差异无显著性(P<0.05)。结论:肾移植术后受者血清TNF-α、IL-6和sIL-2R水平的检测,可在一定程度上反映肾移植受者的免疫反应状态,并为急性排斥反应的监测和诊断提供客观依据。     

Gammadelta T cells and interleukin-6 levels could provide information regarding the progression of human renal allograft

We have determined the percentage of alphabeta and gammadelta T cells by flow cytometry as well as serum interleukin-6 (IL-6) and soluble interleukin-6 receptor (sIL-6R) levels by enzyme-linked immunosorbent assay in kidney allograft recipients with acute, chronic or stable graft evolution. The percentage of CD4 and CD8 T cells in transplanted patients was lower than in the control group (P < 0.001) with the exception of CD8 gammadelta T cells from patients with stable evolution (P > 0.05). The serum levels of IL-6 and sIL-6R in acute and chronic rejection were higher than in the controls (P < 0.05). No differences in IL-6 levels were observed between the stable evolution and the control groups (P > 0.05). The levels of sIL-6R were higher in stable evolution patients than in the controls (P < 0.05) and no differences were observed between the chronic and stable evolution patients (P > 0.05). IL-6 decreased in patients with a favourable evolution, increased in those with an increased renal dysfunction and was maintained when the renal dysfunction was not modified. These results suggest that gammadelta T cells could participate in renal allograft maintenance and that IL-6 but not sIL-6R serum levels may provide a prognostic marker for measuring the evolution of kidney allograft.     

HFRS患者血浆中TNF、sIL-2R、IL-6、IL-4和IFN-γ水平的变化及其意义

目的 :探讨肾综合征出血热 (HFRS)患者血浆中的TNF、sIL 2R、IL 6、IL 4和IFN γ水平的变化及其与血清中丙氨酸转氨酶ALT活性水平的相关性。方法 :利用双mAb夹心ELISA法检测HFRS患者血浆中细胞因子的水平 ,应用美国RA 10 0 0全自动生化仪检测患者血清中ALT的水平。结果 :HFRS患者血浆中TNF、IL 6、IL 4、IFN γ和sIL 2R水平分别为 (95 .82± 12 .0 4 )、(36 2 .4 6± 14 1.2 6 )、(17.76± 3.5 2 )、(116 .18± 19.80 )ng/L及 (89882 0± 12 72 0 0 )U/L ,健康对照组依次为 (17.89± 1.6 8)、(4 3.81± 18.0 8)、(4 .86± 1.14 )、(7.5 7± 2 .4 1)ng/L及(6 6 730± 2 96 90 )U/L、(P <0 .0 1) ;患者血清中ALT的水平也显著升高 ,为正常对照的 4 .4倍。通过相关性分析 ,发现TNF、sIL 2R、IL 6和IFN γ水平与患者血清中ALT的水平高度相关 (P <0 .0 1)。结论 :HFRS患者体内TNF、sIL 2R、IL 6和IFN γ水平显著升高 ,且与患者体内ALT水平的升高高度相关 ,提示HTNV感染所致肝脏的损伤可能与上述细胞因子水平的升高有关     

Soluble interleukin-2 receptor in sera of patients with Graves' disease.

Activation of T lymphocytes has been found to be associated with an increase in soluble interleukin-2 receptor (sIL-2R) levels. The aim of this study was to investigate serum levels of sIL-2R in 20 untreated patients with Graves' disease and to relate these levels to disease activity and to TSH-receptor, anti-thyroglobulin, anti-microsomal and anti-eye muscle antibodies. sIL-2R levels were significantly increased in newly diagnosed Graves' patients compared with controls (667 +/- 270 vs 205 +/- 45 U/ml) (P less than 0.001). The sIL-2R levels were higher in patients with active infiltrative ophthalmology than in those without eye symptoms (810 +/- 313 vs 525 +/- 180 U/ml). All patients were treated with methimazole for at least 12 months. sIL-2R levels were normalized by methimazole treatment in the majority of patients without ophthalmopathy but not in those with ophthalmopathy. In five patients sIL-2R serum levels were studied after interruption of thyrostatic therapy. An increase was observed in three patients and hyperthyroidism subsequently relapsed in two of these. Furthermore, a correlation was found between soluble interleukin-2 receptor levels and TSH-receptor antibodies but not with other immune parameters examined. Serum sIL-2R represents a useful marker of immunological activity in Graves' disease.     

肾移植后早期监测环孢素A血药浓度峰值的临床意义

背景：近几年有报道,检测环孢素A的峰浓度可以更准确地反映环孢素A在体内的药代动力学变化,指导移植后的临床用药比检测谷浓度更合理,而对大样本临床资料统计的研究报道较少。 目的：探讨肾移植后早期监测环孢素A血药浓度峰值对判定环孢素A抗排异疗效及毒副作用的临床意义。 方法：采用单抗免疫荧光偏振法同步监测环孢素A全血谷浓度和峰浓度,回顾性分析78例肾移植受者,移植后观察6个月,48例未发生任何移植后并发症设为正常组,16例发生急性排异反应设为急性排斥反应组,14例出现药物性损害设为药物损害组,观察各组谷浓度及峰浓度在患者发生急性排斥反应或药物毒性时的变化。 结果与结论：移植后各时间段发生急性排异患者环孢素A谷浓度与未发生的比较,差异无显著性意义(P  > 0.05),而各时间段发生急性排斥反应患者环孢素A峰浓度明显低于正常组(P < 0.05)。移植后1个月内,发生药物性肝损害、肾中毒患者谷浓度和峰浓度均明显高于未发生的(P  < 0.05)。移植后2~6个月,药物性肝损害、肾中毒组谷浓度与常组比较差异无显著性意义(P  > 0.05),而峰浓度明显高于正常组(P < 0.05)。提示,监测环孢素A峰浓度能有效预测肾移植后急性排异反应的发生;移植后2~6个月监测环孢素A峰浓度能有效预测肾移植后药物性肝损害、肾中毒的发生。     

Soluble IL-2 receptor and CD25 cells in psoriasis: effects of cyclosporin A and PUVA therapy.

A study was conducted to quantify soluble IL-2 receptor (sIL-2R) levels in sera of 57 chronic plaque psoriasis patients and correlate these measurements with disease activity and the number of IL-2R-positive (CD25+) lymphocytes in lesional biopsies of 11 cyclosporin A (CsA) and 13 psoralen plus ultraviolet radiation (PUVA) treated patients. Levels of sIL-2R showed a strong correlation with the psoriasis area and severity index (PASI). CsA and PUVA significantly reduced the PASI and sIL-2R levels to a similar degree after 4 weeks of treatment. Although the majority of CsA-treated patients who were biopsied showed reductions in lesional CD25+ cells, these did not reach statistical significance; in five patients biopsied who had PUVA treatment, no consistent effect on the numbers of CD25+ cells was observed. A significant correlation was found between CD25+ cells in lesional biopsies and the PASI score.     

The significance of soluble IL-2 receptors in rheumatoid arthritis with interstitial pneumonia]

Interstitial pneumonia is well known as one of the complications of rheumatoid arthritis (RA). While interleukin-2 (IL-2) regulates the immune response through IL-2 receptor (IL-2R), the exact role of the soluble form of IL-2R (sIL-2R), recognized as a part of the alpha chain or IL-2R, is still obscure. So, the immunological significance of sIL-2R in serum and in bronchoalveolar lavage fluid (BALF) of those of RA patients with or without interstitial pneumonia was studied. The sIL-2R was measured with an ELISA kit (T-Cell Science Ltd). The levels of sIL-2R in the sera of RA patients without interstitial pneumonia were significantly higher than those of normal controls. Furthermore, the levels of sIL-2R showed a statistically significant correlation with ESR and Lansbary's index. The levels of sIL-2R of RA patients with interstitial pneumonia were higher than in those without interstitial pneumonia although the evaluation of class and stage of arthritis in those RA patients with or without interstitial pneumonia revealed no significant difference. A high sIL-2R/albumin ratio in BALF of RA patients with interstitial pneumonia was shown in comparison with those of normal control. These data indicate that the estimation of sIL-2R in RA patients could be useful in estimating the disease activity and that high levels of sIL-2R reflect the active immune response in the lungs of RA patients with interstitial pneumonia.     

Long-term cyclosporine treatment: Evaluation of serum biochemical parameters and histopathological alterations in Wistar rats

The immunosuppressant agent cyclosporine (CsA) is currently used in transplanted patients and in the therapy of autoimmune disorders. CsA treatment has significant acute and chronic side effects on the liver and kidney. However, in the clinical setting, it is difficult to distinguish a direct effect of CsA treatment from other confounding variables, such as allograft rejection and effects due to other drug therapies. In the present study, we assessed for direct associations between CsA immunosuppressive therapy and cytokines levels, kidney and liver functionality, as well as lung histopathological status in rats submitted to chronic CsA treatment without undergoing any transplantation. Male Wistar rats were divided into three groups. The control group received vehicle (corn oil), and treated groups received CsA 5 or 15 mg/kg, by daily gastric gavage during 8 weeks. The results demonstrated that CsA treatment decreases blood levels of interleukins 1α (IL-1α), 1β (IL-1β) and interleukin 2 (IL-2), but does not alter interleukin 6 (IL-6) and IFN-γ levels. Serum biochemical markers of renal (creatinine) and hepatic (SGPT and SGOT) injury/dysfunction did not vary with CsA treatment, despite the presence of small histological alterations, suggesting that the function of these metabolic organs were preserved. Pulmonary histopathological lesions were observed in the CsA groups, and they were attributed to the activation of the local immunoresponse mechanisms by the normal microbiota in immunosuppressive CsA cases. These results suggest that the CsA concentrations administered in our experimental protocol were able to induce immunosuppression in rats without causing nephro and hepatotoxicity.     

Platelet activation markers and soluble adhesion molecules in patients with systemic lupus erythematosus

We assessed the role of platelet activation markers (PMPs, Annexin V and CD62P on activated platelets), cytokines (IL-1 beta, IL-4, IL-6, IFN- gamma, GM-CSF, and TNF alpha ), and soluble factors (sIL-2R, TM, sHLA-1, beta(2) -m, sVCAM-1, sPECAM-1, sP-selectin and sE-selectin) in vascular damage related to SLE. There were differences in the levels of PMPs and platelet activation markers between the SLE patients and controls (PMPs: 493+/-82 vs. 328+/-36, p<0.05; plt-CD62P; 8.5%+/-1.2 % vs. 4.6%+/-0.7 %, p<0.05; plt-Annexin V: 11.3%+/-2.1 % vs. 4.9%+/-0.6 %, p<0.01). There were no differences in the levels of IFN- gamma between the groups. However, the levels of IL-1 beta, IL-4, IL-6, GM-CSF, TNF alpha, and soluble factors were higher in the SLE patients than in the controls. The levels of IL-4, IL-6, beta2 -m, sIL-2R, sVCAM-1, sP-selectin, and sE-selectin in SLE patients with elevated sTM levels were higher than those in the SLE patients without elevated sTM levels. On the other hand, elevations of sIL-2R, sVCAM-1, and sP-selectin were not found in patients with Beh?et disease or rheumatoid arthritis. The levels of platelet CD62P, platelet annexin V, and PMP were significantly elevated in high-sTM patients. These findings suggest the possibility that activated platelets and cytokines participate in the pathogenesis of SLE in patients with elevated sTM levels.     

大隐静脉曲张光凝治疗后血清IL-2和sIL-2R的测定

目的 :测定大隐静脉曲张血管内光凝治疗前后血清中白细胞介素 - 2 (sIL - 2R)及其可溶性受体(sIL - 2R)的变化。方法 :5 0例大隐静脉曲张患者根据症状分为轻、重两组 ,取静脉血液 ,分别采用放射免疫分析和双抗体夹心间接ELISA法检测血清中IL - 2和sIL - 2R水平。另外取 30例正常成人血清作为对照。结果 :大隐静脉曲张患者轻症组患者血清中IL - 2和sIL - 2R较正常水平没有明显改变 ;随着病情的加重 ,IL - 2水平明显降低 ,sIL - 2R水平明显升高。治疗后两组IL - 2先下降 ,后逐渐升高 ;sIL - 2R水平先升高 ,后下降。轻症组IL - 2和sIL - 2R稳定水平接近术前 ;而重症组IL - 2稳定后水平高于治疗前 ,sIL - 2R稳定水平低于治疗前水平。结论 :IL - 2和sIL - 2R水平测定可了解静脉曲张患者免疫功能状态 ,判定治疗后病情恢复情况。