寻常痤疮患者外周血单核细胞TLR2的表达及其与IL-8和TNF-α的相关性研究

目的 探讨Toll样受体2(TLR2)在寻常痤疮发病中的作用及意义.方法 选择轻、中、重度痤疮患者各30例,采用流式细胞仪检测其外周血CD14+单核细胞TLR2的表达,并采用双抗体夹心酶联免疫吸附法(ELISA)检测血清IL-8和TNF-α的水平.另取30例正常人作为对照组.结果 轻、中、重度组痤疮患者外周血单核细胞表面TLR2的表达均显著高于正常人对照组(P＜0.01).各组患者血清中IL-8和TNF-α的水平也显著高于正常人对照组(P＜0.01).直线相关分析显示,各组患者TLR2的表达与IL-8、TNF-α水平均呈正相关性(r分别为0.382、0.517、0.436、0.641、0.725、0.593,P＜0.05).痤疮严重程度与TLR2的表达呈正相关性(r=0.406,P＜0.01).结论 TLR2表达水平及相关细胞因子浓度与痤疮严重程度密切相关.

Abstract：

Objective To explore the role of Toll like receptor 2 (TLR2) in the pathogenesis of acne vulgaris. Methods Venous blood was collected from 30 normal human controls and 90 patients with acne vulgaris. The patients were equally divided into three groups, i.e., mild, moderate and severe groups, according to disease severity. Flow cytometry was performed to detect the expression of TLR2 in PBMCs, and double antibody sandwich ELISA to measure the levels of serum interleukin-8 (IL-8) and tumor necrosis factor-α (TNF-α). Results A significant increase was observed in the expression of TLR2 in PBMCs, serum level of IL-8and TNF-α in the three groups of patients with acne vulgaris compared with the normal human controls (all P ＜0.01). The expression of TLR2 was positively correlated with the expression of IL-8 (r=0.382, 0.517,0.436,respectively, all P＜0.05) and TNF-α(r=0.641, 0.725, 0.593, respectively, all P＜0.05) in the patients with mild, moderate and severe acne vulgaris, respectively, and with the severity of acne vulgaris (r = 0.406,P＜0.01 ). Conclusion The expression level of TLR2 and related cytokines seems closely correlated with the severity of acne vulgaris.     

复方甘草酸苷治疗女性青春期后痤疮疗效观察

目的：评价复方甘草酸苷治疗女性青春期后痤疮的有效性、安全性，并探讨其作用机理。方法：49例女性青春期后痤疮患者随机分为两组。治疗组27例，口服复方甘草酸苷片；对照组22例，口服安体舒通片。两组患者在口服药物的同时均外用5％硫磺霜。疗程均为8周。于用药前、用药后2、4、8周末分别观察记录面部各种皮损的实际数目、全身及局部不良反应。并分别在用药前、用药后8周检测血清睾酮（T）、雌二醇（E2）及胰岛素样生长因子1（IGF-1）水平。结果：治疗4周后两组平均皮损数目分别由50.2±11．54、48．5±12．26减少为17，8±9．54、38．9±10，64（P〈0．05），复方甘草酸苷起效比安体舒通快；治疗8周后两组有效率分别为85．2％、68．2％（P〉0．05），二者总体疗效相当；复方甘草酸苷治疗女性青春期后痤疮复发率低、无明显不良反应。实验室结果显示，治疗组患者的血清T和IGF-1水平分别由78．4±32．93ng／dL、338．6±91．58ng／mL下降为36．5±13．91ng／dL（P〈0．01）、196．6±60．95ng／mL（P〈0．05），但复方甘草酸苷对E2水平的影响不大。结论：复方甘草酸苷是治疗女性青春期后痤疮安全、有效的方法，并有调节患者血清T及IGF-1水平的作用。     

夏枯草及抗炎1号注射液经肝动脉联合灌注 治疗大鼠晚期肝癌的实验研究

目的:观察夏枯草及抗炎1号注射液经肝动脉联合灌注对大鼠晚期肝癌的治疗作用。方法:建立30只二乙基亚硝胺(DEN)诱发大鼠晚期原发性肝癌模型,随机分为中药组、化疗组和盐水组,每组各10只。经胃、十二指肠动脉至肝固有动脉分别灌注生理盐水0.5mL、夏枯草注射液0.6g/kg+抗炎1号注射液0.45g/kg、顺铂(DDP)4mg/kg+羟基喜树碱(HCPT)1.5mg/kg+5-氟脲嘧啶(5-FU)34mg/kg。结果:与化疗组和盐水组比较,中药组大鼠的一般情况较好,肝重/体重低,病理性肝损害轻,生存率高(90％对60％,70％,P〈0.05)。结论:经肝动脉联合灌注夏枯草及抗炎1号注射液较灌注化疗药物对诱发性大鼠晚期肝癌具有更好的作用。     

5-氨基酮戊酸光动力联合胶原蛋白贴治疗中重度痤疮效果观察

目的探讨10％5-氨基酮戊酸光动力联合胶原蛋白贴治疗中重度痤疮的临床疗效。方法选择我院2010年1月-2011年6月收治的160例中重度痤疮,按照数字编号随机分为治疗组与对照组。治疗组80例,予10％ 5-氨基酮戊酸光动力联合胶原蛋白贴治疗;对照组80例,仅予10％5-氨基酮戊酸光动力治疗,8周后进行总体评估,并记录两组治疗过程中出现的不良反应。结果治疗组痊愈率50．63％,总有效率86．08％,对照组痊愈率40．51％,总有效率72．15％,两组痊愈率比较差异无统计学意义（x2=1．29,P〉0．05）,总有效率比较差异有统计学意义（x2=4．63,P〈0．05）。结论10％5-氨基酮戊酸光动力联合胶原蛋白贴治疗中重度痤疮可提高疗效,并减少不良反应。     

天津市大学生痤疮发病因素相关性调查与分析

目的了解天津市大学生寻常痤疮的流行现况并作相关危险因素分析。方法2008年9月至11月对天津市13所高校2006级至2008级在校大学生痤疮发病情况进行现况调查。结果总回收问卷1 709例中现患寻常痤疮830例,现患率为48.57%。其中男性610人（35.69%）,男性现患率42.46%。女性1 099人（64.31%）,女性现患率51.96%。两性间现患率的差异有统计学意义（x~2=14.2,P〈0.01）。多因素logistic回归分析结果显示：痛经、月经时间不正常、睡眠不足、喜食油炸或肥腻食品以及遗传因素为危险因素。结论痤疮是天津市大学生中常见病、多发病。女生现患率较男性高。寻常痤疮是多因素疾病。     

The efficacy and safety of the fractional radiofrequency technique for the treatment of atrophic acne scar in Asians: A meta-analysis

Background: The fractional radiofrequency (fRF) technique is a recently emerged technique. However, the exact outcomes of fRF for treating atrophic acne scar in Asians are still unclear. Objective: To compare the clinical outcomes of fRF with the fractional laser technique in Asians with atrophic acne scar. Materials and methods: The databases MEDLINE, EMBASE, Cochrane Central Register of Controlled Trials, and Chinese National Knowledge Infrastructure (CNKI) were searched. Main clinical outcomes were participant-reported scar improvement, investigator-reported scar improvement, post-inflammatory hyperpigmentation (PIH), erythema duration, scab duration, and the pain level. Result: Six randomized controlled trials were included in this meta-analysis. The scar improvement was similar in both groups regarding participant-reported scar improvement (p = 0.48) and investigator-reported scar improvement (p = 0.89). However, the incidence of PIH in fRF group was lower in comparison with the laser group (p < 0.001). The average duration of erythema was shorter in fRF group than in the laser group (p < 0.001). The mean time for debridement was shorter in fRF group than the carbon dioxide fractional laser system (p = 0.02). The pain level did not differ significantly in the two groups (p = 0.53). Conclusion: Although some bias exists in our study, fRF appears to be a superior alternative for the treatment of atrophic acne scar in Asians.     

痤疮相关基因多态性的研究进展

痤疮是一种可能与多基因遗传有关的累及毛囊皮脂腺的炎症性皮肤病,发病机制复杂,目前尚未完全阐明.已有研究表明,某些基因的单核苷酸多态性可能与痤疮易感性相关,如SELL基因、RETN基因、DDB2基因、MYC基因、转化生长因子通路相关基因、胰岛素样生长因子1基因等.从炎症相关基因多态性、推激素受体相关基因多态性、转化生长因子β通路相关基因多态性及胰岛素受体相关基因多态性4个方面,探讨痤疮相关基因多态性的研究进展.深入探索痤疮相关基因多态性对基因靶向药物的研发有重要意义.     

Drug delivery into the skin by degradable particles

Recently, it was demonstrated that particles could be utilized as carrier systems for drugs into the hair follicles. In the present study, a two-component drug delivery system is presented consisting of degradable particles loaded with fluorescein isothiocyanate and a separate protease formulation for degradation. The particles were applied alone, 30 min previous to the protease application and simultaneously with the protease onto porcine skin. Subsequently, biopsies were removed, and the penetration depths of the particles were analyzed using laser scanning microscopy.The obtained results demonstrate that the particles alone achieved a penetration depth of around 900 μm. Similar results were obtained for the successive application of particles and protease, whereas a release of the fluorescent dye was only observed in the upper 250 μm corresponding to the penetration depth of the protease. In the case of the simultaneous application, the particles were partly dissolved before application, leading to a reduced particle size and diminished penetration depth.The results revealed that degradable particles are a promising tool for drug delivery into the skin.     

Therapeutic effect observation on treatment of acne with acupuncture plus moving cupping and blood-letting

目的：观察针刺配合刺络走罐治疗痤疮的疗效。方法：将60例痤疮患者随机分为两组，治疗组采用针刺配合刺络走罐；对照组采用针刺治疗，两组均治疗30天后观察疗效。结果：治疗组总有效率明显高于对照组（P〈0．05）。结论：针刺配合刺络走罐治疗痤疮能有效提高该病的有效率。     

A Survey of Treatment of Acne by Acupuncture

Acne usually affects the face, chest and back in puberty. Here, the author would like to present a survey of acupunture treatment of acne according to the clinical reports in resent years.