大骨节病患者血清促炎症细胞因子水平的检测

目的探讨前炎症细胞因子TNF、IL-1β和IL-6在大骨节病(KBD)发病机制中的作用。方法采集62例KBD患者和60例健康对照的血清标本,采用双抗体夹心ELISA法测定血清前炎症细胞因子TNF、IL-1β和IL-6的水平。结果KBD患者血清IL-1β和IL-6的水平分别为(238.4±698.5)ng/L和(164.4±661.4)ng/L,健康人分别为(74.5±130.0)ng/L和(52.2±154.6)ng/L,但它们之间差异均不显著(P>0.05)。然而,KBD患者血清TNF的水平[(109.2±145.3)ng/L]高于健康对照[(40.9±89.7)ng/L],差异非常显著(P<0.01)。患者血清TNF与IL-1β的水平及血清TNF与IL-6水平的相关性均不显著(r值分别为0.0387和0.2135,P>0.05)。血清IL-1β与IL-6的水平呈显著的正相关(r=0.3460,P<0.01)。结论血清前炎症细胞因子水平的升高,可能与大骨节病的发病有关。     

慢性肾炎与相关细胞因子变化的研究

目的 :探讨慢性肾炎患者血清白介素 - 2 (IL - 2 )、白介素 (IL - 6 )、肿瘤坏死因子 (TNF -α)在肾炎发生、发展过程中的浓度变化及相互关系。方法 :用放射免疫分析检测 71例慢性肾炎患者及 36例年龄和性别相匹配的健康志愿者血清IL - 2、IL - 6、TNF -α的水平。结果 :①慢性肾炎患者外周血中IL - 6、TNF -α水平明显高于正常对照组 (p <0 0 1 ) ,而IL - 2水平明显低于正常对照 (p <0 0 1 ) ;②直线相关分析显示 :IL -6、TNF -α与BUN呈正相关 (p <0 0 1 ) ;③各临床分型组间细胞因子浓度水平比较无显著性差异。 结论 :细胞因子IL - 2、IL - 6、TNF -α在慢性肾炎的发生、发展过程中相互作用 ,观察其浓度变化对探讨发病机理、预防及指导用药均有重要价值。     

过敏性鼻炎患者炎症因子水平变化的观察

目的探讨探讨过敏性鼻炎(AR)的炎症机制。方法对58例AR患者血清肿瘤坏死因子-α(TNF-α)、可溶性血管细胞间粘附分子-1(sVCAM-1)和白细胞介素-1(IL-1β)水平进行检测,将其结果与57例本院健康体检者比较。结果 AR组患者血清水平 IL-1β、TNF-α和 sVCAM-1分别为13.65±4.52(pg/ml)、39.53±19.68(pg/ml)和124.53±36.63(ng/ml),对照组分别为6.28±3.71(pg/ml)、21.28±10.82(pg/ml)和39.64±13.58(ng/ml),AR组的平均水平较对照组高(P<0.01)。结论炎症机制参与AR患者的发生与发展,巨噬细胞被活化,有多种细胞因子的释放。     

糖尿病肾病患者与相关细胞因子水平的变化

目的:探讨了糖尿病肾病患者的血清白介素-2、白介素-6、白介素-8和肿瘤坏死因子水平的变化在肾病发生、发展过程中的作用。方法:应用放射免疫分析对38例糖尿病肾病患者和36例正常人进行了血清IL-2、IL-6、IL-8和TNF水平的检测。结果:糖尿病肾病患者血清中IL-6、IL-8和TNF水平非常显著地高于正常人组(P<0.01),而IL-2水平则显著地低于正常人组(P<0.01)。结论:血清IL-2、IL-6、IL-8和TNF水平的变化在糖尿病肾病的发生和发展中相互作用,观察其浓度的变化对探讨其发病机理、预防和指导用药均有十分重要的临床价值。     

海洛因依赖者急性戒断前后IL-1β、TNF-α、ACTH及CORT含量变化的研究

海洛因依赖者存在着严重免疫功能紊乱或损伤,其中以细胞免疫损伤尤甚.我们在之前的流式细胞术分析结果基础上,为进一步探讨海洛因依赖者急性戒断前后血浆IL-1β、TNF-α、ACTH及CORT水平变化及其临床意义,对其血浆进行放射免疫测定,现将结果报告如下.     

NIV毒素和硒对软骨细胞IL-1β、TNF-α分泌的影响

目的:通过测定NIV毒素和硒作用下软骨细胞IL-1β、TNF-α含量的变化,从细胞因子角度探讨大骨节病发病机制。方法:在体外单层和立体培养的人胚软骨细胞中加入NIV毒素和硒,构建软骨损伤模型,收集软骨组织、细胞和细胞培养液,用光学显微镜观察体外构建组织的形态;用分光光度法测定软骨细胞DNA含量;用酶联免疫吸附方法(ELISA)检测细胞培养液中IL-1β、TNF-α的水平。结果:形态学观察发现NIV毒素能抑制软骨细胞生长,局部出现点片状坏死;毒素加硒后,上述损伤变化减弱。NIV毒素作用下软骨细胞DNA的合成受到抑制,但培养液中IL-1β、TNF-α含量显著升高,毒素加硒与毒素组变化趋势一致,但数值略下降。结论:NIV毒素能诱导软骨细胞IL-1β与TNF-α的分泌,这可能是造成软骨细胞损伤的原因之一。     

乳酸菌灌服对小鼠血清细胞因子含量的影响

<正>乳酸菌作为饲料及食品添加剂日益受到关注[1]。酸奶是一种以乳及乳制品为原料,通过添加乳酸菌制成的一种发酵乳制品,具有营养价值高,风味独特及较强的医疗保健作用[2],而酸奶中的益生菌可调节肥胖和超重人群外周血单个核细胞中特异性转录因子和细胞因子的表达水平[3]。研究表明,对于经口摄入的沙门氏菌,灌胃乳酸菌或乳酸菌发酵奶可以增强肠液中的分泌型免疫球蛋白A(secretory immunoglobin A,sIgA)的含量来抵抗沙门氏菌对肠     

吸毒者血清细胞因子、NO含量的变化

本文报告 5 5例吸毒者血清中白细胞介素 - 1(ＩＬ - 1)白细胞介素 - 2 (ＩＬ - 2 ) ,肿瘤坏死因子 (ＴＮＦ) ,一氧化氮 (ＮＯ)含量的变化 ,以了解吸毒者免疫功能损害的机理。材料和方法一、材料 :(一 )正常人 35名 ,为连云港市第一人民医院预防保健科体检合格的健康人 )均无心、肝、肺、肾等重要脏器疾患 ,肝、肾功能试验正常 ,无服用激素类药史 ,ＨＩＶ血清学检测为阴性反应。(二 )吸毒者 5 5人。均为连云港市戒毒所收治的患者 ,其中男性 38人 ,年龄 18～ 31岁 ,平均 2 5 2岁 ;女性 17人 ,年龄 16～ 2 6岁 ,平均 2 4 4岁。吸毒时间 6个月…     

姜黄素治疗大鼠脑出血后血清IL-6、IL-1β、TNF-α变化的实验研究

目的 本研究旨在探索大鼠脑出血(intracerebral hemorrhage,ICH)用姜黄素治疗后血清IL-6、IL-1β、TNF-α变化情况,评价姜黄素在治疗脑出血中的抗炎价值,从而为临床应用姜黄素治疗脑出血提供科学的实验数据.方法 24只健康雄性成年SD大鼠,单纯随机分为术前正常对照组(A组),脑出血姜黄素治疗组(B组),脑出血空白对照组(C组),假手术组(D组),每组6只大鼠.立体定位下右侧基底节注射胶原酶法制备大鼠脑出血模型.于建模成功后6h、24h、48h、3d、5d、7d、14d,给各组大鼠尾静脉取血测IL-6、IL-1β、TNF-α.将B组与C组、D组的IL-6、IL-1β、TNF-α值行两样本t检验比较,P＜0.05为差异有统计学意义.结果 B组的神经生物学评分较相应时期的C组低,较相应时期的D组高,差异有统计学意义.B组的血清IL-6、IL-1β、TNF-α水平在术后6h即升高,3d达最高水平,随后开始逐渐恢复,且各个时期的血清IL-6、IL-1β、TNF-α水平均较同时期C组低,较同时期的D组高,差异均有统计学意义.结果 姜黄素能加快大鼠脑出血后血清炎症因子的吸收,对大鼠脑出血有抗炎作用.     

IL-6和TNF-α在弥漫性脑损伤大鼠额叶的表达及血清中含量变化

目的研究白细胞介素-6(IL-6)和肿瘤坏死因子-α(TNF-α)在弥漫性脑损伤大鼠额叶的表达和血浆含量的变化。方法采用M am arou的弥漫性脑损伤的动物模型,分别于伤后不同时间收集额叶脑组织和静脉血,分别以RT-PCR法和放免法测定脑组织中IL-6和TNF-αmRNA和血清中IL-6和TNF-α的含量。结果在弥漫性脑损伤的额叶脑组织中IL-6mRNA的表达较对照组明显升高,并在损伤后6 h达到高峰,血清中IL-6的含量也较对照组升高,12 h达到高峰。TNF-αmRNA的表达在损伤后12 h明显高于对照组,24 h达到高峰,血清TNF-α水平在损伤后12 h明显高于对照组,24 h逐渐升高。结论弥漫性脑损伤时IL-6和TNF-α在脑组织和血清中升高,在疾病的发展中起到重要的作用。     

老年心力衰竭患者血清炎症因子的变化

目的： 研究老年心力衰竭患者血清肿瘤坏死因子α（TNF-α）、可溶性肿瘤坏死因子受体I（sTNFRI）、白细胞介素6（IL-6）、白细胞介素10（IL-10）、转化生长因子β_I（TGF-β₁）水平与心功能状态之间的关系。 方法： 采用双抗夹心ELISA法测定112例老年心力衰竭患者及60例健康老年人的血清TNF-α、IL-6、sTNFRI、IL-10和TGF-β₁水平，同时采用心脏超声仪测定左心室舒张末期内径（LVEDD）和左心室射血分数（LVEF）。 结果： (1)老年心力衰竭患者的血清TNF-α、IL-6、sTNFRI、IL-10和TGF-β1水平明显高于对照组（P＜0.05,P＜0.01），且随着心功能的恶化逐渐升高（P＜0.05,P＜0.01）。(2)心力衰竭患者血清TNF-α/sTNFRI、IL-6/IL-10的比值显著高于对照组（P＜0.05, P＜0.01），而且随着心功能的恶化逐渐升高（P＜0.05,P＜0.01）。(3)血清TNF-α和IL-6水平与LVEDD呈显著正相关（P＜0.05），与LVEF呈负相关（P＜0.05）。 结论：在老年心力衰竭患者中，血清促炎症性细胞因子与心功能状态密切相关，促炎症细胞因子与抗炎症细胞因子的平衡向炎症方面偏移，两者的改变能够反映心功能的变化。     

癫癎患者血清细胞因子水平的研究

目的：探讨细胞因子与癫癎发病的关系。方法：采用酶联免疫吸附法（ＥＬＩＳＡ） 对５８ 例癫癎患者及４２ 例正常对照血清可溶性白细胞介素２ 受体（ｓＩＬ２Ｒ） 及肿瘤坏死因子（ＴＮＦ） 水平进行了检测。结果：癫癎组血清ｓＩＬ２Ｒ 及ＴＮＦ 水平显著高于正常对照组,血清ｓＩＬ２Ｒ 及ＴＮＦ 水平变化与癫癎类型无关,抗癫癎药物对血清ｓＩＬ２Ｒ 及ＴＮＦ 水平无明显影响。结论：癫癎患者存在内在的细胞免疫功能紊乱,其单核—巨噬细胞及Ｔ淋巴细胞处于激活状态。     

VEGF polymorphisms and serum VEGF levels in Parkinson's disease

Accumulated data within the recent years demonstrate that reduced levels of VEGF which is a well known angiogenic molecule might cause neurodegeneration in part by impairing neural tissue perfusion, vasoregulation and normal functioning of perivascular autonomic nerves. Additionally, VEGF has been reported to support neuroprotection in dopaminergic neurons by indirect and direct mechanisms and suppress apoptosis in dopaminergic neurons in vitro. The aim of the current study is first to demonstrate whether there is an association between the three common VEGF polymorphisms (−2578C/A, −634C/G and 936C/T) in the VEGF gene and idiopathic Parkinson's disease (IPD) which is a neurodegenerative disease caused by the progressive degeneration of nigrostriatal dopaminergic neurons, and second to see if the serum levels of VEGF is reduced in the patients with IPD. We screened the genotype and allele frequencies of three common functional polymorphisms of VEGF, namely −2578C/A, −634C/G and 936C/T in DNA samples of 126 patients with IPD and healthy control subjects and also we compared the median serum levels of VEGF between these two groups. No association was found between the inspected VEGF polymorphisms and IPD and also no difference was found between the serum VEGF levels of both groups. The current study failed to support the hypothesis that VEGF polymorphisms and/or reduced serum VEGF levels are likely contributors to the neurodegenerative process in IPD.     

Evaluation of serum VEGF levels in untreated erythrocytosis patients

The aim of this prospective study was to investigate the involvement of angiogenesis in the etiopathogenesis of the different classes of erythrocytosis (polycythemia vera PV, idiopathic erythrocytosis and secondary erythrocytosis). The angiogenic activity was evaluated by the assessment of the serum VEGF levels in 78 untreated erythrocytosis patients and 21 healthy subjects. The results indicated that VEGF was overproduced in advanced and untreated PV patients and at less degree, in early PV, a subgroup of idiopathic erythrocytosis, thus confirming an increased angiogenic activity. However, VEGF does not play an angiogenic role in secondary erythrocytosis.     

Vascular endothelial growth factor levels in serum and plasma from patients undergoing controlled ovarian hyperstimulation for IVF

BACKGROUND: Vascular endothelial growth factor (VEGF) has been investigated as a marker of ovarian response to controlled ovarian hyperstimulation and as a predictor of ovarian hyperstimulation syndrome (OHSS) in IVF cycles. In most studies, serum has been used for circulating VEGF concentration measurement, but it has been suggested that plasma is the preferred medium to measure VEGF levels because of the potential contribution of VEGF released from platelets during blood clotting. This study investigated VEGF concentrations in paired serum and plasma samples from patients undergoing controlled ovarian hyperstimulation for IVF. METHODS: Serum and plasma VEGF levels, as well as the number of platelets, were measured in 30 IVF patients who comprised three study groups delineated according to the estradiol (E(2)) serum concentration reached on the day of HCG administration: 10 patients having low E(2) serum levels (<1500 pg/ml, group L), 10 patients having intermediate E(2) serum levels (1500-3000 pg/ml, group I) and 10 patients having high E(2) serum levels (>3000 pg/ml, group H). RESULTS: There was a statistically significant correlation between plasma and serum VEGF levels (rho = 0.61; P < 0.005) for the entire population studied, although serum values were higher by a factor of approximately 6-fold. No significant correlation was found between peripheral blood VEGF concentrations and serum E(2) or follicle number on HCG day or the number of oocytes collected. Similarly, paired serum and plasma VEGF measurements did not correlate with platelet count. CONCLUSIONS: Serum and plasma VEGF concentrations are strongly correlated in paired samples from infertile patients undergoing controlled ovarian hyperstimulation. However, neither serum nor plasma VEGF levels were correlated with parameters associated with ovarian follicular activity. Peripheral blood VEGF levels were not correlated with platelet count.     

Study of serum VEGF levels in patients with severe dengue infection admitted in a tertiary care hospital in Kolkata

Dengue is the most common arboviral infection globally, but its pathogenesis is poorly explored. Vascular endothelial growth factor (VEGF) has an essential role in the host defense against viral infection. However, not much information is available regarding its status in dengue patients from the eastern zone of India. In the present investigation, the level of VEGF was investigated for its possible utility as a dengue severity marker. Accordingly, confirmed dengue cases were enrolled during 2016-2018. Serum from all the study subjects was subjected to the standard enzyme-linked immunosorbent assay test for VEGF analysis. In addition, we assessed the association of VEGF to dengue severity. The study revealed that VEGF titers (P < .0001) were significantly increased in severe dengue (SD) patients in contrast to those with a milder form of dengue. An association was obtained between VEGF and increased SGOT (r = 0.517 with P < .0001) while VEGF had a negative correlation with platelets in SD patients (r = −0.331 with P = .001). Enhanced VEGF titers along with decreased platelets had a good association with SD. The investigation revealed that high VEGF titers are novel indicators of dengue severity. However, our results must be verified in a study evaluating a larger number of dengue patients.     

Significance of serum complement levels in patients with gastrointestinal disease.

Levels of the serum complement components, C3 and C4, in patients with Crohn's disease, ulcerative colitis, and miscellaneous gastrointestinal disorders were compared with those of normal blood donors. Significant increases of both components were found in all three patient groups, the highest being in patients with Crohn's disease. Generally, levels of C3 and C4 were lower in patients with inactive rather than active Crohn's disease and ulcerative colitis. These results provide some evidence in support of an immunological basis for inflammatory bowel disease. However, in view of the frequent elevation of C3 and C4 in other gastrointestinal diseases, it is equally possible that the complement components are behaving as acute phase proteins.     

类风湿关节炎患者血清和关节液细胞因子水平的变化及临床意义

目的探讨幼年类风湿关节炎(JRA)及类风湿关节炎(RA)患者IL-6、IL-8、sIL-2R和TNF-α等细胞因子(CK)水平的变化,及其与风湿活动的传统指标血沉(ESR)和C-反应蛋白(CRP)的相关性。方法采用夹心ELISA法,对30例JRA和34例RA患者的血清中,4例JRA、7例RA、6例骨性关节炎(OA)和9例半月板损伤(MT)患者的关节液中IL-6、IL-8、sIL-2R和TNF-α的水平进行检测。结果①30例JRA、34例RA患者血清IL-6和sIL-2R的水平与对照组相差非常显著(P〈0.01);30例JRA患者血清IL-8水平与对照组比较相差显著(P〈0.05)。②JRA全身型、少关节型患者血清IL-8、sIL-2R的水平和JRA多关节型患者血清IL-6的水平与对照组相差非常显著(P〈0.01)。③4例JRA及7例RA患者关节液sIL-2R的水平和RA患者关节液的IL-6水平与对照组相差显著(P〈0.05)。④JRA患者血清IL-6和sIL-2R的水平与ESR和CRP的变化呈明显的相关关系(r值分别为0.532和0.621)。结论①IL-6、sIL-2R的水平与JRA、RA病的活动性有关,是类风湿活动性的主要指标。②sIL-2R不仅参与JRA和RA的全身病理损伤,而且是引起关节局部损伤的主要CK,IL-6也参与JRA关节局部的病理损伤,在RA关节局部损伤似乎更为重要。③IL-8主要参与JRA的全身病理损伤,对关节局部病理损伤似乎并不重要。     

Changes in serum levels of autoantibody to nerve growth factor in patients with schizophrenia

Studies were performed on 54 patients with different types of schizophrenia—paranoid (8), recurrent-progressive (30), and slowly progressive (16), with ICD-10 rubrics F20.00 and F20.01, F20.22 and F20.02, and F21 respectively. An immunoenzyme method was used to demonstrate that schizophrenia patients had elevated levels of autoantibody to nerve growth factor, by a factor of 1.5 compared with a group of 70 healthy subjects. The autoantibody level was related to the stage of disease: during the active phase, there was a significant increase compared with patients in remission (1.38±0.26 and 0.92±0.25 U respectively). There were no differences between variants with different disease courses. The authors suggest that the data obtained here indicate that the autoantibody level can be used as a measure of the activity of the disease process. Translated from Zhurnal Nevrologii i Psikhiatrii imeni S. S. Korsakova, Vol. 98, No. 3, pp. 32–34, March, 1998.