Dectin-1 mRNA在寻常型银屑病患者皮损中的表达

目的检测寻常型银屑病患者皮损组织中dectin-1 mRNA的表达,探讨dectin-1在银屑病发病中的可能机制。方法采用实时荧光定量聚合酶链反应(RFQ-PCR)检测15例寻常型银屑病患者皮损组织及15例正常皮肤组织中dectin-1 mRNA的表达。结果寻常型银屑病患者皮损中dectin-1 mRNA的表达为(0.01020±0.00686),较正常皮肤组织(0.00232±0.00073)明显升高,差异有统计学意义(P0.05)。结论 Dectin-1 mRNA表达水平在寻常型银屑病患者皮损中明显升高,其可能在寻常型银屑病患者皮肤局部免疫反应中起作用。     

寻常型银屑病患者HLA-DQB1等位基因多态性分析

寻常型银屑病病因和发病机理迄今尚不清楚。遗传因素在寻常型银屑病的发病过程中具有重要作用。有关寻常型银屑病与ＨＬＡ相关性研究 ,１９８１年宋芳吉等曾有报道 ,以后又逐步发现中国人寻常型银屑病与Ａ１、Ｂ１３、Ｂ１７、Ｃｗ６和ＤＲ７相关。我们通过检测寻常型银屑病患者ＨＬＡ ＤＱＢ１等位基因的多态性分布情况 ,分析寻常型银屑病与ＤＱＢ１等位基因的关联 ,其结果可为探讨遗传因素在寻常型银屑病发病机制中的作用及为寻常型银屑病疾病易感基因的定位提供进一步线索。一、病例和方法（一）病例 :病例组 :中国汉族寻常型银屑病患者…     

ICAM—1，IGF—1在银屑病皮损中的表达

目的了解银屑病患者皮损中ICAM-1、IGF-1表达水平及分布,并讨论其临床意义和相互关系.方法用免疫组化的方法对16例实验组标本和16例对照组标本进行检则.结果实验组ICAM-1为72.9375±21.1408,对照组为51.3750±17.0876,两组间存在显著性差异(P＜0.01);IGF-1实验组为50.1875±13.5288,对照组为33.3125±17.8281,两组间存在显著性差异(P＜0.02);患者组ICAM-1、IGF-1增高呈明显的正相关(P＜0.05).结论银屑病皮损中ICAM-1、IGF-1表达增高且密切相关,在银屑病病程中起着重要作用.     

51例新疆寻常型银屑病患者皮损中FOXP1和hMSH2的表达

目的:检测新疆寻常型银屑病(PV)患者皮损中FOXP1和hMSH2的表达。方法:EnVision免疫组化法分别检测51例新疆PV患者皮损及29例正常人皮肤组织中FOXP1和hMSH2的表达。结果:FOXP1和hMSH2在PV皮损中的阳性表达率(92.16%,94.12%)均高于正常人皮肤组织(65.52%,55.17%),差异有明显统计学意义(P0.01)。结论:FOXP1和hMSH2可能与寻常型银屑病的发病有关。     

MCPIP1和IL-17c在寻常型银屑病皮损中的表达

目的:检测MCPIP1和IL-17c在寻常型银屑病患者皮损中的表达。方法:Real-time PCR及免疫荧光检测45例寻常型银屑病患者皮损及19例正常皮肤中MCPIP1和IL-17c mRNA及蛋白表达水平,皮尔逊相关系数分析MCPIP1和IL-17c的相关性。结果:银屑病组MCPIP1、IL-17c mRNA相对表达量分别为0.8497±0.0661和0.4027±0.04158,对照组中分别为0.2921±0.06135和0.2374±0.02525,差异均有统计学意义(P0.05)。MCPIP1和IL-17c mRNA水平具有明显相关性(P0.05)。患者组皮损中MCPIP1和IL-17c的蛋白表达水平高于正常对照组。结论:MCPIP1和IL-17c可能共同影响寻常型银屑病的发生发展。     

寻常型银屑病皮损TGF-β受体的表达

目的:检测TGF-β受体在寻常型银屑病皮损中的表达.方法: 应用ABC过氧化物酶技术检测21例寻常型银屑病患者皮损中TGF-β受体Ⅰ、Ⅱ、Ⅲ的表达.结果:银屑病患者TGF-β受体RⅠ,RⅡ和RⅢ表达于基底和基底上层角质形成细胞(KC),与正常表皮相比明显减弱;TGF-βRⅠ和RⅢ的表达明显弱于RⅡ.进展期皮损(17例)TGF-β受体的表达弱于静止期皮损(4例).结论:抑制性细胞因子TGF-β受体在皮损处的表达降低,对银屑病表皮KC失去部分抑制作用,致使KC过度增殖,形成银屑病的临床病理表现.     

寻常型银屑病患者表皮HLA-C位点mRNA表达的研究

目的:检测寻常型银屑病患者表皮HLA-C位点mRNA的表达.方法:应用qReal-time-PCR技术检测46例寻常型银屑病患者皮损、非皮损表皮中的HLA-C位点mRNA的表达,与28名正常人皮肤表皮进行对照.结果:银屑病患者皮损、非皮损和正常人皮肤表皮中HLA-C 位点mRNA表达分别是0.0063±0.0070,0.0048±0.0037和0.0036±0.014.3组样本比较,银屑病患者皮损mRNA表达明显高于非皮损(P＜0.05),非皮损mRNA表达与正常对照比较无显著性差异.进行期皮损表皮的mRNA表达明显高于稳定期(P＜0.05).结论:寻常型银屑病患者HLA-C位点mRNA表达异常,可能与该病发病机制有关.     

寻常型银屑病患者血清白介素-2水平测定

2000年10月～2001年10月笔者采用ELISA方法检测了30例寻常型银屑病患者血清中白介素-2(IL-2)的浓度,并进行了银屑病面积和严重程度指数(PASI)评分,了解两者之间的相关性,进一步探讨银屑病的发病机制。病例组:30例寻常型银屑病患者均来自笔者所在科室门诊,排除相关疾病及各种影响因素。其中男14例,女16例,平均年龄(28.23±12.60)岁(9～60岁)。平均病程(32.81±50.63)个月(20d～16年)。对照组:20例,男8例,女12例;平均年龄(30.10±10.00)岁(17～45岁)。经t检验,性别、年龄差异无显著性。ELISA检测严格按照IL-2试剂盒(深圳晶美公司)说明…     

寻常型银屑病患者皮损miR-146a的表达及意义

目的检测寻常型银屑病患者皮损中miR-146a的表达情况,并探讨其与寻常型银屑病发病的相关性。方法应用实时定量逆转录一聚合酶链反应(qRT-PCR)比较30例寻常型银屑病患者皮损及正常对照组相同部位皮肤中miR-146a的相对表达量。并探讨其与寻常型银屑病患者病情活动指标之间的关系。结果寻常型银屑病患者皮损中的miR-146a的拷贝数显著高于正常对照组(P0.05),并发现miR-146a表达量与寻常型银屑病的皮损面积和严重程度有一定关系。结论寻常型银屑病患者皮损中的miR-146a异常高表达,并与寻常型银屑病的严重程度相关,提示miR-146a在寻常型银屑病的发病中起重要作用。     

小儿寻常型银屑病伴发皮肌炎1例

患儿男，9岁，头皮、凹肢、躯干部鳞屑性斑块4年。病理报告符合寻常型银屑病，面部水肿性红斑伴肌痛、肌无力2年。肌酶指标升高，肌电图示广泛肌源性损害神经电图示运动神经传导速度在正常范围内。诊断为寻常型银屑病伴发皮肌炎。     

寻常型银屑病皮损中细胞周期蛋白A、D1、B1和E的表达

目的：探讨细胞周期蛋白A（Cyclin A）、Cyclin B1、Cyclin D1和Cyclin E在寻常型银屑病皮损中的表达和意义。方法：采用免疫组化法对28例寻常型银屑病患者的皮损和18例正常人对照皮肤中的Cyclin A、D1、B1和E的表达进行了检测。结果：28例寻常型银屑病患者中26例皮损表达Cyclin A和Cyclin B1，27例有Cyclin D1和Cyclin E表达，正常组织无表达或弱表达。结论：细胞周期蛋白A、D1、B1和E可能通过诱导细胞增殖参与了银屑病的发病。     

骨桥蛋白及膜型基质金属蛋白酶-1在寻常性银屑病的表达

目的 探讨骨桥蛋白及膜型基质金属蛋白酶-1 (MT1-MMP)在人银屑病中的表达及意义. 方法 采用免疫组化SP法检测21例寻常型银屑病,16例正常人皮肤中骨桥蛋白(OPN)及MT1-MMP蛋白的表达。结果 21例寻常型银屑病中骨桥蛋白及MMP-14表达的阳性率分别为85.7%及80.9%;16例正常皮肤中阳性表达率均为62.5%。统计分析发现差异具有统计学意义(p＜0。05)。且OPN于MT1-MMP的表达与年龄性别发病部位均无关（p>0.05）。21例寻常型银屑病中骨桥蛋白与MT1-MMP均表达的11例,均不表达的3例。结论 骨桥蛋白与MT1-MMP在寻常型银屑病中高表达。     

Beneficial effects of fumarate therapy in psoriasis vulgaris patients coincide with downregulation of type 1 cytokines

BACKGROUND: Fumarates have been shown to be effective in psoriasis vulgaris. OBJECTIVES: To find out whether successful therapy is associated with modulation of cytokines. METHODS: We determined interferon (IFN)-gamma, interleukin (IL)-4 and IL-10 secretion capacities of peripheral blood mononuclear cells (PBMC) after phytohaemagglutinin stimulation, and IL-12p70 and IL-10 secretion capacities of PBMC after endotoxin stimulation in psoriasis vulgaris patients during treatment with fumarates. In a cohort study, 12 patients (five men, median age 50 years; seven women, median age 46 years) with psoriasis vulgaris were followed during 24 months of fumarate treatment. In addition, we followed 14 healthy controls (six men, median age 31 years; eight women, median age 29 years) without skin diseases during 12 months to investigate possible changes in the cytokine secretion capacity of PBMC as a result of seasonal changes. Disease activity in patients was determined by Psoriasis Area and Severity Index (PASI) score. Blood was collected for measurement by enzyme-linked immunosorbent assay of cytokine levels after stimulation of PBMC. RESULTS: Within 6 months of fumarate treatment, the mean +/- SD PASI score had decreased to 22 +/- 9% of its initial value. These beneficial effects coincided with lymphocytopenia and a significant (P < 0.05) downregulation of IFN-gamma expression by circulating blood cells, followed by a significant downregulation of IL-4 expression. Notably, production of the cytokine synthesis inhibitor IL-10 by PBMC was unchanged. CONCLUSIONS: The beneficial effects of fumarates may be attributed to their downregulatory action on type 1 cytokines.     

FoxM1在寻常性银屑病患者皮损中的表达

目的研究寻常性银屑病患者皮损中Fox M1(forkhead box M1)表达情况。方法寻常性银屑病及正常对照标本各30例,采用En Vision二步法进行免疫组化染色。结果 Fox M1在正常皮肤组织中表达减低,在寻常性银屑病皮损染色强度显著增高(Z=-4.965,P=0.000,P0.05)。结论 Fox M1可能与银屑病皮损角质形成细胞过度增生相关。     

Essential-fatty-acid metabolites in plasma phospholipids in patients with ichthyosis vulgaris, acne vulgaris and psoriasis

The concentration of essential fatty acids (EFAs) and their metabolites in plasma phospholipids were measured by gas chromatography in normal individuals, and in patients with ichthyosis vulgaris, acne vulgaris or psoriasis. In all three patient groups, concentrations of arachidonic acid (20:4 omega 6) and docosapentaenoic acid (22:5 omega 6) were significantly below those in controls, suggesting that these abnormalities may occur in many skin diseases. Concentrations of dihomogammalinolenic acid (20:3 omega 6) were low in ichthyosis, normal in acne and elevated in psoriasis. Thus ichthyosis, acne and psoriasis each had a characteristic pattern of EFA metabolites.     

壮族人寻常性银屑病与HLA-DQA1和DQB1基因的相关性研究

[摘要]目的：探讨广西壮族人寻常型银屑病的发病与HLA-DQA1和DQB1基因的关联。方法：应用聚合酶链式反应-序列特异引物（PCR-SSP）法对58例壮族寻常型银屑病患者和102例健康壮族人的HLA-DQA1和DQB1座位进行基因分型，比较两组相应等位基因的频率。结果：HLA-DQB1*0303与壮族银屑病患者呈显著的正相关（OR=4.540，p=0.004），而HLA-DQA1*0501和HLA-DQB1*0301与壮族银屑病患者呈显著的负相关（OR=0.189，p=0.000；OR=0.367，p=0.018）。结论：以上3个HLA-DQ等位基因与广西壮族人寻常型银屑病的关系密切，其中HLA-DQB1*0303可能为该人群银屑病的易感因子，而HLA-DQA1*0501和HLA-DQB1*0301则可能对银屑病有抵抗作用。     

寻常型银屑病患者体内半乳糖凝集素家族蛋白表达研究

 目的:探讨寻常型银屑病（PV）患者体内半乳糖凝集素（Gal）家族蛋白表达情况。方法:采用ELISA法检测30例PV患者与30例正常对照者血清中Gal-1、Gal-3、Gal-7、Gal-9的水平;采用免疫组化检测15例PV患者皮损与10例正常皮肤中Gal-1、Gal-3、Gal-7、Gal-9的表达及细胞定位;以平均光密度值评价表达水平,比较其在PV患者与正常对照组中表达的差异。结果:与正常对照者相比,PV患者血清中Gal-1水平明显上调［（39.57±11.33） ng/mL比（31.93±7.98） ng/mL,t=3.02,P=0.004）］,且与PASI评分呈正相关（r=0.37,P=0.049）;皮损中Gal-1主要表达于真皮且表达明显上调（0.030±0.043比0.011±0.002,t=3.34,P=0.003）;PV患者表皮中Gal-3表达下调（0.016±0.001比0.060±0.018,t=-2.85,P=0.009）、 Gal-7上调（0.090±0.011比0.049±0.009,t=2.58,P=0.017）、 Gal-9下调（0.011±0.002比0.049±0.007,t=-6.16,P<0.001）。结论:Gal家族成员Gal-1、Gal-3、Gal-7、Gal-9在PV患者血清中的水平及皮损局部的细胞定位与表达各不相同,提示其在PV中的功能也存在差异,有可能参与了PV的发病机理。     

Increased HMGB1 serum levels and altered HMGB1 expression in patients with psoriasis vulgaris

High mobility group box-1 (HMGB1) has been implicated as a pro-inflammatory cytokine in the pathogenesis of various inflammatory and autoimmune diseases. However, information about HMGB1 in inflammatory skin diseases is unknown. Herein, we investigated the serum HMGB1 levels and tissue HMGB1 expression in patients with psoriasis vulgaris (PV) and atopic dermatitis (AD). Serum levels of HMGB1 in patients with PV and AD were detected by enzyme-linked immunosorbent assay (ELISA). The expression of HMGB1 in lesional skin was evaluated by immunohistochemistry and immunofluorescence. Protein levels of HMGB1 in the nuclear fraction and cytoplasmic fraction were determined by western blot. Serum levels of HMGB1 in patients with PV but not AD were significantly higher than those in nornal controls. Moreover, serum HMGB1 levels were correlated with the severity of PV according to PASI socres. Furthermore, by immunohistochemistry and immunofluorescence, we showed that the expression of HMGB1 in normal skin was almost completely restricted to the nucleus. However, abundant cytoplasmic expression of HMGB1 was observed in the epidermis in lesional skin of PV patients. In addition, western blot data indicated that HMGB1 expression was in the nucleus protein and was absent in the cytoplasm protein in control group. In contrast, HMGB1 expression in the cytoplasmic fraction was detectable in AD patients and more distinct in PV patients. Taken together, this study provides first observations on the association of HMGB1 with PV, and showed the elevated HMGB1 serum levels and altered HMGB1 distribution in lesional skin in patients with PV. We suggest that HMGB1 might be involved in the pathogenesis of PV.     

寻常性银屑病患者血清白细胞介素-26水平与疾病严重度相关性分析

目的:检测寻常性银屑病患者血清中白细胞介素(IL)-26的表达量,并分析其对疾病严重程度的影响.方法:选取2017年12月-2019年1月来山西医科大学第一附属医院就诊的寻常性银屑病患者84例作为观察组,其中进展期患者40例,静止期患者44例;选择同期在该院进行健康体检的志愿者40例作为对照组.采用流式细胞术检测2组患...