贵州某白酒对大鼠睾丸间质细胞内类固醇激素急性调节蛋白表达及血清睾酮水平的影响

目的探讨摄入贵州某54°白酒后,不同时程及不同剂量对大鼠睾丸间质细胞内类固醇激素急性调节蛋白(St AR)表达及血清睾酮水平的变化,以期为科学饮酒提供基础资料。方法正常成年雄性SD大鼠69只,随机分为正常对照组(n=15)及实验组(n=54)。实验组分为低剂量组0.8ml/(kg·d)、中剂量组1.6ml/(kg·d)及高剂量组2.4ml/(kg·d),实验组大鼠每日灌胃2次。分别于第4周末、第8周末、第12周末采血清,取睾丸组织。采用免疫组织化学SABC法、图像分析、Western blotting检测睾丸组织St AR的表达,采用化学发光法检测大鼠血清睾酮水平。结果各实验组的血清睾酮水平与正常对照组比较未见明显异常,差异无统计学意义(P0.05)。St AR免疫组织化学阳性产物存在于睾丸间质细胞胞质内;与正常对照组比较,4周、8周、12周各剂量组St AR免疫染色及平均吸光度均有所增强(P0.05);Western blotting检测,4周、8周、12周各剂量组St AR蛋白表达水平增强(P0.05)。结论在本实验设定的剂量和时程内用该白酒灌胃后,大鼠睾丸间质细胞内St AR表达水平有所增强,血清睾酮水平并无明显变化。     

Renal injury induced in alloxan diabetic rats. Role of Mycophenolate Mofetil as therapeutic agent

BackgroundRenal injury may develop in uncontrolled chronic hyperglycemia due to increased oxidative stress and release of pro-inflammatory mediators, leading to diabetic complications.MethodsMycophenolate Mofetil (MMF) is an immunosuppressant drug, an inhibitor of inosine monophosphate dehydrogenase (IMPDH), relevant to inflammation processes. MMF effect was tested in alloxan-diabetic rats on selected parameters like oxidative stress, gene expression of tumor necrosis factor-α (TNF-α) and transforming growth factor-β1 (TGF-β1), in relation to microalbuminuria and renal function.ResultsWe found that the onset of microalbuminuria preceded the increase in serum glucose after alloxan treatment. Gene expression of TNF-α and TGF-β1 showed gradual increase after one and two weeks of alloxan administration as compared to the normal group. MMF administration decreased the gene expression of TNF-α and TGF-β1 in kidney tissues, serum glucose, fructosamine, urea, creatinine, C-reactive protein, malondialdehyde, urinary microalbumin and total protein. Histological examination of kidney tissues showed significant improvement in MMF treated rats as compared to diabetic control.ConclusionsMMF modulated renal injury of alloxan diabetic rats. Collective data may support its therapeutic effect but further clinical trials may be requested.     

何首乌饮对运动疲劳大鼠睾丸组织P450胆固醇侧链裂解酶和类固醇激素急性调节蛋白的影响

目的 探讨何首乌饮对运动疲劳大鼠睾丸组织细胞色素P450胆固醇侧链裂解酶(P450scc)和类固醇激素急性调节蛋白(StAR)的影响.方法 60只雄性SD大鼠,随机分为安静对照组(A组)、安静何首乌饮组(B组)、模型组(C组)、自然恢复组(D组)、何首乌饮治疗组(E组);何首乌饮预防组(F组),每组10只.C、D、E和F组大鼠复制运动疲劳动物模型,其中F组每天训练前给何首乌饮20g/(kg·d)(含生药4.8kg/L)灌胃60 d.模型成功后E组给何首乌饮20 g/(kg·d)(含生药4.8kg/L)灌胃治疗60 d.采用美国Beckmancoulter Unicel Dxl 800仪器测定睾酮水平; 采用RT-PCR、Western blotting和免疫组织化学法检测各组睾酮合成限速酶P450scc和StAR的表达变化.结果 P450scc免疫组织化学阳性颗粒主要表达于间质细胞及精母细胞,B组和F组表达最强,C组最弱,与其余各组相比差异有统计学意义.P450scc蛋白和mRNA表达变化为B、F组明显高于E、D和A组(P<0.05),C组明显低于A组(P<0.05),A组和D组以及B组和F组两两之间差异无显著性;StAR免疫组织化学阳性颗粒主要表达于睾丸间质细胞胞质,阳性强度表现为E组和F组最强,C组最弱.StAR蛋白和mRNA表达变化为E和F组明显高于A、D组(P<0.05),C组明显低于A组(P<0.05),A、D组之间无差异.结论 何首乌饮可以提高睾酮合成限速酶P450scc和StAR的表达.     

高迁移率族蛋白B1对磷酸钙诱导巨噬细胞释放炎症因子的协同作用

背景：研究表明,巨噬细胞及其炎症反应参与了肾结石的发生发展。前期实验发现结石晶体可刺激巨噬细胞释放高迁移率族蛋白B1。 目的：观察高迁移率族蛋白B1对磷酸钙诱导巨噬细胞释放白细胞介素1β、白细胞介素6、肿瘤坏死因子α、单核细胞趋化因子1的协同作用。 方法：实验分两部分：①将成功诱导为巨噬细胞的U937细胞分为空白组、100 mg/L磷酸钙组、100 μg/L高迁移率族蛋白B1组、100 mg/L磷酸钙+100 μg/L高迁移率族蛋白B1组,干预1,2,4 h后收集细胞上清液。②将已成功诱导为巨噬细胞的U937细胞分为100 mg/L磷酸钙组、磷酸钙+10 μg/L高迁移率族蛋白B1组、磷酸钙+50 μg/L高迁移率族蛋白B1组、磷酸钙+100 μg/L高迁移率族蛋白B1组,干预4 h后收集细胞上清液。Elisa法检测白细胞介素1β、白细胞介素6、肿瘤坏死因子α、单核细胞趋化因子1水平。 结果与结论：ELISA结果显示,磷酸钙组,100 μg/L高迁移率族蛋白B1组上清液白细胞介素1β、白细胞介素6、肿瘤坏死因子α、单核细胞趋化因子1质量浓度均高于空白组,磷酸钙+100 μg/L高迁移率族蛋白B1组上清液上述因子质量浓度均显著高于其他3组(P < 0.05),且呈时间依赖性。不同质量浓度高迁移率族蛋白B1+磷酸钙组细胞上清液白细胞介素1β、白细胞介素6、肿瘤坏死因子α、单核细胞趋化因子1水平均显著高于磷酸钙组(P < 0.05),且呈浓度依赖性。结果表明,磷酸钙及高迁移率族蛋白B1均可诱导巨噬细胞释放白细胞介素1β、白细胞介素6、肿瘤坏死因子α、单核细胞趋化因子1;高迁移率族蛋白B1可协同磷酸钙诱导巨噬细胞释放白细胞介素1β、白细胞介素6、肿瘤坏死因子α、单核细胞趋化因子1。 中国组织工程研究杂志出版内容重点：组织构建;骨细胞;软骨细胞;细胞培养;成纤维细胞;血管内皮细胞;骨质疏松;组织工程全文链接：     

A possible role of insulin-like growth factor-II C-peptide in regulating the function of steroidogenic cells in adult frog adrenal glands

The sole structural determinant for the differential ability of the insulin-like growth factors (IGF-I and IGF-II) to induce autophosphorylation of specific insulin receptor (IR) tyrosine residues and activate downstream signaling molecules is the C domain. The IR is structurally related to the type I insulin-like growth factor receptor (IGF-IR). This study aimed to identify the presence of IGF receptors by which the IGF-II C-peptide could mediate its effects in the frog (Rana ridibunda) adrenal glands and to observe whether injection of IGF-II C-peptide affects the function of adrenal steroidogenic cells using light and transmission electron microscopy and by the evaluation of the immunoreactivity of steroidogenic acute regulatory protein (StAR). After IGF-II C-peptide injection, there was a reduction of StAR protein immunoreactivity levels, an accumulation of large lipid droplets in close contact with each other, and an induction of proliferation of the steroidogenic cells. These results indicate a possible role of IGF-II C-peptide in steroidogenic cell function and in induction of steroidogenesis. The detection in this study of IGF-I receptor (IGF-IR) immunoreactivity in frog adrenal glands also indicates that the metabolic and mitogenic effects of IGF-II C-peptide in these glands may occur via the IGF-IR.     

转化生长因子β1对香烟诱导的大鼠肺泡巨噬细胞γ-谷氨酰半胱氨酸合酶表达的影响

目的：探讨转化生长因子（TGF）-β1对香烟诱导的大鼠肺泡巨噬细胞γ-谷氨酰半胱氨酸合酶（γ-GCS）和活化蛋白(AP)-1亚单位c-fos mRNA及其蛋白表达的影响。方法:通过支气管肺泡灌洗获取大鼠肺泡巨噬细胞，随机分为对照组、香烟组和TGF-β1组。TGF-β1组加入终浓度为3 μg/L的TGF-β1,2 h后除对照组外，余2组均加入香烟烟雾提取物,对照组加入磷酸盐缓冲液。分别用逆转录聚合酶链式反应（RT-PCR）和免疫细胞化学方法检测肺泡巨噬细胞中γ-GCSh(重链亚单位)及c-fos mRNA和蛋白的表达。结果:香烟组γ-GCSh和c-fos mRNA及其蛋白表达水平显著高于对照组(分别P<0.05,P<0.01)。TGF-β1组γ-GCSh mRNA及其蛋白表达水平明显低于香烟组(均P<0.01)；而c-fos mRNA及其蛋白表达水平明显高于香烟组(均P<0.01)。结论:转化生长因子-β1参与香烟所致慢性阻塞性肺疾病肺氧化/抗氧化失衡的发病机制。     

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。     

Regulatory effects of IL-13 on synovial fluid macrophages and blood monocytes from patients with inflammatory arthritis.

Activated macrophages are central to the destructive processes of chronic inflammatory arthritis. In this study, it was hypothesized that IL-13, a product predominantly of 'Th2-type' lymphocytes, may be used therapeutically to down-regulate monocyte/macrophage activities at sites of chronic inflammation. Synovial fluid mononuclear cells were isolated from 12 patients with chronic inflammatory arthritis. Peripheral blood mononuclear cells (PBMC) were isolated at the same time as synovial fluid cells from all 12 patients. IL-13 significantly inhibited lipopolysaccharide (LPS)-induced tumour necrosis factor-alpha (TNF-alpha) production by mononuclear cells from peripheral blood, but not synovial fluid. In contrast, IL-13 inhibited LPS-induced IL-1 beta production by all cells, and as a positive response to IL-13, CD23 expression was increased on both cell populations. Blood monocytes cultured for 7 days with granulocyte-macrophage colony-stimulating factor (GM-CSF) or M-CSF responded to IL-13 in a manner similar to that detected for synovial fluid-derived cells, with suppression of LPS-induced IL-1 beta, but not TNF-alpha, production. In all experiments, the responses to IL-13 were very similar to those detected to IL-4, but differed from those measured with IL-10. Thus, the responses to IL-13 by synovial fluid cells and cultured monocytes are not equal to those of blood monocytes. The similar responses to IL-4 and IL-13 support claims of a common element for signalling from the IL-4 and IL-13 receptors. Furthermore, the activity of a common receptor chain may be altered by monocyte activation and differentiation.     

类固醇激素合成急性调节蛋白与动脉粥样硬化

类固醇激素合成急性调节蛋白StAR在胆固醇转化为类固醇激素的过程中具有重要作用。StAR表达于血管内皮细胞中，影响胆固醇代谢并受胆固醇、低密度脂蛋白、25-羟基胆固醇等脂类物质的调节，StAR可能参与脂质代谢平衡并在动脉粥样硬化的防治中起到重要作用。     

类固醇激素合成急性调节蛋白（StAR）与胆固醇代谢

类固醇激素合成急性调节蛋白(StAR)在胆固醇的代谢中发挥重要的作用。近期研究表明StAR同样表达于肝脏组织中，通过调节胆汁酸的合成，增加胆固醇的排泄。这为脂肪肝等脂类代谢异常类疾病的防治提供了一条新的途径。     

The modulating effects of proinflammatory cytokines interferon-gamma (IFN-gamma) and tumour necrosis factor-alpha (TNF-alpha), and immunoregulating cytokines IL-10 and transforming growth factor-beta (TGF-beta), on anti-microbial activity of murine peritoneal macrophages against Mycobacterium avium-intracellulare complex

We assessed the roles of proinflammatory cytokines IFN-gamma and TNF-alpha, and immunoregulatory cytokines IL-10 and TGF-beta in the modulation of the anti-microbial activity of murine peritoneal macrophages against Mycobacterium avium-intracellulare complex (MAIC). First, both IFN-gamma and TNF-alpha significantly reduced the bacterial growth in macrophages, indicating that these cytokines participate in up-regulation of macrophage anti-MAIC function. Second, although MAIC-infected macrophages produced substantial amounts of IL-10 and TGF-beta, neutralization of endogenous IL-10 and TGF-beta with anti-IL-10 and anti-TGF-beta antibodies, respectively, did not affect the intracellular growth of MAIC in macrophages from mice with BcgS (MAIC-susceptible) or BcgI (MAIC-resistant) genotype, regardless of the virulence of test MAIC strains. The same result was also obtained for macrophages stimulated with IFN-gamma or TNF-alpha. Third, in MAIC-infected mice, the growth of organisms at the sites of infection (lungs and spleens) was not affected by administration of anti-IL-10 or anti-TGF-beta antibodies. These findings indicate that, in the case of mice, endogenous IL-10 and TGF-beta are essentially ineffective in down-regulating macrophage anti-MAIC functions not only in vitro but also in vivo.     

Smad泛素化调节因子-2及其mRNA在增生性瘢痕组织中的表达

目的研究烧伤后增生性瘢痕组织中Smad泛素化调节因子－2（Smurf2）及其mRNA的表达。方法选取烧伤后增生性瘢痕患者9例,取材于患者整形手术切除的瘢痕,同时取同一患者剩余正常皮肤作为对照。Western blotting方法检测smurf2蛋白水平,RT—PCR检测其mRNA表达;进一步分离培养人正常皮肤和增生性瘢痕成纤维细胞,加入外源件转化生长凶子β1（TGF—β1）刺激,观察Smurf2蛋白和mRNA水平的变化。结果增生性瘢痕组织中Smurf2蛋白水平和mRNA表达显著高于正常皮肤（P〈0．05）,而且,在外源性TGF—β1刺激下,瘢痕成纤维细胞中Smurf2蛋白和mRNA表达呈时间依赖性增加。结论烧伤后增生性搬痕组织中Smurf2及其mRNA表达增强;在TGF—β1刺激下,瘢痕成纤维细胞中Smurf2及儿mRNA表达逐渐增加。     

清络通痹颗粒对佐剂性关节炎大鼠炎症细胞因子的影响

目的观察清络通痹颗粒对佐剂性关节炎大鼠细胞因子含量的影响.方法采用弗氏完全佐剂性制备大鼠佐剂性关节炎模型,观察清络通痹颗粒对佐剂性关节炎大鼠IL-1、TNF-α的影响.结果清络通痹颗粒[7.2,14.4 g/(kg*d).ig]能明显降低佐剂性关节炎大鼠IL-1、TNF-α水平.结论清络通痹颗粒具有抑制佐剂性关节炎大鼠细胞因子异常产生的作用.     

DEHP对雄性仔鼠胚胎Leydig细胞雄激素合成的影响

目的:研究邻苯二甲酸二乙基己基酯(DEHP)对雄性仔鼠胚胎Leydig细胞(FLC)雄激素合成的影响。方法:DEHP分别以低、中、高3组剂量(10、100、750 mg.kg-1.d-1)灌胃作用于怀孕12 d到产后1 d(GD12-PND1)的SD母鼠,观察DEHP对雄仔鼠血清睾酮(T)水平、睾丸FLC形态结构、睾丸FLC的类固醇激素合成急性调节蛋白(StAR)及胰岛素样生长因子1(IGF-I)mRNA的相对表达量(ΔΔCT法)。结果:低剂量组血清T水平显著高于对照组(P0.01);而中、高剂量组血清T水平显著低于对照组(P0.05)。光镜下低剂量组可见间质细胞聚集呈簇分布,中剂量组与高剂量组均可见间质细胞呈瘤样增生。电镜示低剂量组间质细胞椭圆形、长梭形,脂质颗粒减少,线粒体、滑面内质网丰富。中、高剂量组间质细胞呈梭形或椭圆形,大小不一,核大、圆,胞浆丰富,细胞聚集一起,胞质内可见丰富的脂质颗粒,脂质颗粒染色深,滑面内质网及线粒体扩张。高剂量组睾丸FLC的StAR mRNA的相对含量显著低于对照组(P0.01)。低剂量组睾丸FLC的IGF-Ⅰ mRNA相对含量显著高于对照组(P0.01)。结论:DEHP对新生雄性仔鼠睾丸FLC有毒性作用,可影响雄性仔鼠睾丸FLC的形态学及其生成类固醇的能力。其可能机制是低剂量DEHP宫内暴露后,促进睾丸FLC的IGF-ⅠmRNA表达从而引起血清睾酮升高,而高剂量DEHP可能通过抑制睾丸FLC StAR mRNA表达从而降低血清睾酮水平。     

Mutual antagonism between interferon-gamma and tumor necrosis factor-alpha on fibroblast-like synoviocytes: Paradoxical induction of IFN-gamma and TNF-alpha receptor expression

We recently described mutual antagonism between IFN-gamma and TNF-alpha on human fibroblast-like synoviocytes (FLS). TNF-alpha inhibits IFN-gamma-induced HLA-DR expression and IFN-gamma blocks TNF-alpha-dependent synoviocyte proliferation, collagenase production, and GM-CSF secretion. To study the mechanism of antagonism we have analyzed the effect these factors on the expression of cytokine surface receptors.¹²⁵I-Labeled cytokine binding was measured on cultured FLS and the results were analyzed by Scatchard plots. Unstimulated synoviocytes expressed 9300 ± 1560 IFN-gamma binding sites per cell. A single class of high-affinity receptor was observed (K _d=4.5±2.5×10^–10 M). TNF-alpha did not competitively inhibit¹²⁵I-IFN-gamma binding. When FLS were incubated with TNF-alpha (100 ng/ml), there was a paradoxical 49.5 ± 5.6% increase in the number of binding sites for IFN-gamma (P=0.001), with no change in theK _d. Unstimulated FLS also expressed 2850 ± 700 TNF-alpha receptors per cells, with a singleK _d consistent with the lower-affinity TNF-alpha receptor (7.4±0.2×10^–10 M). IFN-gamma did not directly interfere with TNF-alpha binding. Preincubation of FLS with 100 U/ml of IFN-gamma resulted in a 28.9 ± 9.0% increase in TNF-alpha receptor expression (P<0.008), with no change in theK _d. Low levels of the soluble 55-kD TNF receptor were detected in FLS supernatants. IFN-gamma did not effect soluble TNF receptor production. These data are the first demonstration of IFN-gamma and TNF-alpha receptors on FLS and show that TNF-alpha and IFN-gamma increase the expression of each other's receptor. Therefore the mutual antagonism between these two cytokines must occur through a postreceptor mechanism.     

Relationship of inflammatory markers and pain in patients with head and neck cancer prior to anticancer therapy

Pain is a common symptom in patients with cancer, including those with head and neckcancer (HNC). While studies suggest an association between chronic inflammation andpain, levels of inflammatory cytokines, such as C-reactive protein (CRP) and tumornecrosis factor-alpha (TNF-α), have not been correlated with pain in HNC patients whoare not currently undergoing anticancer treatment. The purpose of this study was toexamine the relationship between these inflammatory markers and perceived pain in HNCpatients prior to anticancer therapy. The study group consisted of 127 HNC patientsand 9 healthy controls. Pain was assessed using the Brief Pain Inventory (BPI), andserum levels of CRP and TNF-α were determined using the particle-enhancedturbidimetric immunoassay (PETIA) and ELISA techniques, respectively. Patientsexperiencing pain had significantly higher levels of CRP (P<0.01) and TNF-α(P<0.05) compared with controls and with patients reporting no pain. There weresignificantly positive associations between pain, CRP level, and tumor stage. This isthe first study to report a positive association between perceived pain and CRP inHNC patients at the time of diagnosis. The current findings suggest importantassociations between pain and inflammatory processes in HNC patients, with potentialimplications for future treatment strategies.     

The expression of thioredoxin-1 and inflammatory cytokines in patients with sepsis

Abstract

Background: Sepsis is life-threatening organ dysfunction caused by a dysregulated host response to infection. Inflammatory response and oxidative stress play an important role in the pathophysiological process of sepsis. Thioredoxin-1 (Trx-1) is a small ubiquitous thiol protein with redox/inflammation modulatory properties relevant to the pathogenesis of sepsis. We therefore investigated the expression level and significance of Trx-1, inflammatory factors and oxidative stress in peripheral blood of sepsis patients, and to explore Trx-1 relationship with inflammatory factors and oxidative stress.

Methods: Plasma samples were collected from patients with sepsis and those with healthy control. Enzyme-linked immunosorbent assays (ELISA) were used to detect for interleukin (IL-1β), IL-6, tumor necrosis factor (TNF-α), E-selectin, endothelin-1 (ET-1), thioredoxin-1, C-reactive protein (CRP), procalcitonin (PCT) for human plasma samples; RT-PCR detection of Trx-1 and thioredoxin-interacting protein (TXNIP) mRNA levels. Colorimetric assay for glutathione (GSH) and malondialdehyde (MDA) expression level in peripheral blood of patients with sepsis; Disease severity was assessed as APACHE II.

Results: The expression levels of Trx-1, inflammatory factors and oxidative stress in plasma of patients with sepsis were significantly increased, TXNIP opposite.

Conclusion: Our results show that Trx-1 play important role in inflammation and oxidative stress in sepsis patients. Trx-1 may be a potential therapeutic target in sepsis.     

Ku70对HTLV-1阳性T细胞中HTLV-1病毒蛋白表达的影响

目的:探讨Ku70对人嗜T淋巴细胞病毒1(HTLV-1)阳性T细胞中HTLV-1病毒蛋白表达的影响。方法:Western blot实验检测不同的HTLV-1阳性T细胞系中Ku70的表达水平;构建Ku70基因沉默siRNA并通过Western blot实验检测其敲减Ku70表达的效率;采用siRNA在HTLV-1阳性的T细胞中敲减Ku70表达后,通过real-time PCR和Western blot实验分别检测HTLV-1病毒蛋白在mRNA和蛋白水平上的表达量,并通过real-time PCR实验检测干扰素和促炎因子的表达量。结果:HTLV-1阳性T细胞系MT2、MT4及C8166中的Ku70均呈高表达;采用siRNA敲减Ku70的表达后,MT2细胞及MT4细胞中的HTLV-1病毒蛋白表达量上升;采用siRNA敲减Ku70的表达后,MT2细胞及MT4细胞中干扰素α、干扰素γ及肿瘤坏死因子α的表达下降。结论:Ku70在HTLV-1阳性T细胞中高表达;在HTLV-1阳性T细胞中,Ku70促进干扰素和促炎因子的表达,抑制HTLV-1病毒蛋白的表达。     

髓鞘碱性蛋白和肿瘤坏死因子α水平与Guillain-Barre综合征和多发性硬化的关系

目的 检测Guillain-Barre综合征(GBS)和多发性硬化(MS)患者血清髓鞘碱性蛋白(MBP)和肿瘤坏死因子α(TNF-α)的水平,探讨它们的相互关系.方法 采用ELISA法测定24例GBS和36例MS患者的血清MBP和TNF-α,并与28例其它神经系统疾病(OND)和30例健康对照(HC)进行比较.结果 GBS和MS组的MBP、TNF-α水平分别是(230±52),(236±56)和(200±46),(185±38)ng/L,均高于OND组及对照组(均P＜0.01),且GBS组的MBP、TNF-α水平高于MS组(P＜0.01).结论 MBP、TNF-α在Guillain-Barre综合征与MS发病中可能都起一定的作用,但在GBS中可能更突出.