中药面膜联合红蓝光治疗寻常痤疮疗效观察

目的：观察中药面膜联合红蓝光治疗仪治疗寻常痤疮临床疗效及安全性。方法：66例寻常痤疮患者按就诊先后顺序随机分为3组：对照组、面膜组、联合组,治疗4周后进行疗效评估,治疗结束后4周随访复发情况。结果：联合组及面膜组疗效高于对照组（P〈0.05）。结论：中药面膜联合红蓝光治疗仪治疗寻常痤疮疗效好,不良反应少,优于单用疗法,痤疮后期维持治疗同样值得重视。     

黄瓜香等中草药对寻常型痤疮治疗效果的观察

目的应用黄瓜香等中草药作为微生态调节剂治疗青少年寻常型痤疮。方法通过比较治疗前后痤疮患者面部皮肤痤疮丙酸杆菌和表皮葡萄球菌数量以及面部皮疹的数量来判断黄瓜香等中草药治疗痤疮的疗效。结果黄瓜香抑制了痤疮丙酸杆菌和表皮葡萄球菌生长（P〈0．05）;减少了皮疹数量（P〈0．05）,使皮疹不再出现。结论黄瓜香等能够治疗青少年寻常型痤疮。     

痤疮的中医药治疗现状

痤疮亦称寻常型痤疮,是一种青春期常见的毛囊皮脂腺的慢性炎症,归属中医"粉刺、酒刺、粉花疮、肺风粉刺"范畴。本文从中医治疗、中西医结合治疗、外治3个方面综述了近年来痤疮的治疗情况。中医主要以清泄肺胃、疏肝滋阴等为法,从根本上进行调理,中西医结合疗法、外治法亦对痤疮有明显作用,三者在临床上取得了较好的疗效,由于痤疮的病因繁多,病机多样,个体差异较大,故临床上应根据不同情况采用不同的方法来治疗。     

复方联苯苄唑乳膏治疗足癣疗效和安全性评价

复方联苯苄唑乳膏（compound bifonazole cream）是以1％联苯苄唑为主要成分,以5％克罗米通、2％利多卡因、0．5％甘草次酸、2％L-薄荷醇等为次要成分组方而成的新型乳膏制剂。根据国家药品监督管理局第HL20020003号文件要求,对拜耳（中国）有限公司提供的复方联苯苄唑乳膏治疗足癣和体股癣进行疗效及安全性评价,并以1％联苯苄唑霜作对照。黄怀球等已就其治疗体、股癣的疗效和安全性进行了报道,本文仅就其治疗足癣的疗效和安全性进行总结。     

耳穴贴压配合面部护理治疗寻常痤疮48例体会

方法:用耳穴贴压配合面部护理治疗寻常痤疮。结果:经2-4疗程治疗,总有效率为90%,获得较好疗效。结论:耳穴贴压具有调节脏腑功能,调节内分泌,抑制过多的雄激素的作用,配合面部皮肤护理,从根本上去除痤疮的发病机制,且经济、便捷、无副作用。     

2％硝酸舍他康唑乳膏联合复方酮康唑乳膏治疗手足癣的疗效观察

手、足癣是皮肤癣菌在手足部位引起的皮肤病,在全世界广泛流行,发病率高、局部传染性强.外用抗真菌药物是目前临床采用的主要的治疗方法.笔者利用硝酸舍他康唑乳膏联合复方酮康唑乳膏治疗手、足癣82例,现对其疗效和安全性报告如下.     

复方金银花煎液湿热敷与夫西地酸乳膏联合治疗靶向药物所致皮疹的临床疗效

目的:分析复方金银花煎液湿热敷与夫西地酸乳膏联合治疗靶向药物所致皮疹的临床疗效。方法:选择2014年8月~2016年8月我院收治的靶向药物所致皮疹患者80例,参照抽签法分作对照组与观察组,每组各40例。对照组患者采用夫西地酸乳膏治疗,观察组患者采用复方金银花煎液湿热敷与夫西地酸乳膏治疗,比较两组治疗前后症候积分、生活质量评分的变化、临床疗效和不良反应的发生情况。结果:治疗后,观察组症候积分(6.87±1.25)分显著低于对照组(10.29±2.74)分(P0.05),生活质量评分(3.15±0.57)亦明显低于对照组(6.42±1.20)分(P0.05)。观察组临床有效率(95.00%)显著高于对照组(77.50%),差异有统计学意义(P0.05);两组不良反应的发生率比较差异均无统计学意义(P0.05)。结论:复方金银花湿热敷与夫西地酸乳膏联合治疗靶向药物所致皮疹的临床疗效确切,可有效缓解患者临床症状,提高生活质量。     

薄层色谱法分离鉴别复方克霉唑乳膏中的硫酸庆大霉素

用薄层色谱法分离鉴别复方克霉素乳膏中的硫酸庆大霉素。方法：薄层色谱法。结果：复方克霉唑乳膏中的硫酸庆大霉素分离为三个组份,其Rf值分别为0．43、0．46、0．50。结论：硫酸庆大霉素中三个组份用薄层色谱法可以完全分离。     

西藏灵菇酸奶对寻常性痤疮的治疗作用观察

寻常性痤疮是青少年最常见的几种疾病之一,在某种程度上影响面部的美观,使许多人为之苦恼。有资料证实,皮肤表面栖居着一定数量的微生物群,有细菌20多种;真菌7、8种;还有一定数量的病毒和原虫等。面部皮肤优势菌群主要有表皮葡萄球菌、棒状杆菌和丙酸杆菌,这些常驻菌形成了和谐的微生态系。这些细菌受面部皮脂腺分泌、pH值以及外环境的影响,可发生演替。该文用微生态理论做指导,以调整面部菌群失调达到对寻常性痤疮的治疗,收到一定的效果。现报道如下。     

生态蛇胆霜治疗寻常痤疮及皮肤菌群变化的研究

本文报告了应用微生态制剂－生态蛇胆霜治疗寻常痤疮３０例，取得总有效率９０．０％的较好疗效，且无任何不良反应。并对治疗前后皮肤菌群变化与健康人对比及疗前疗后里面形螨早数量变化进行了研究。     

Benzoyl Peroxide and Sulfur: Foundation for Acne Management

One hundred and thirteen consecutive patients with acne were studied by qualified dermatologists during a trial of topical 10% benzoyl peroxide and 2%-5% sulfur cream. The results were considered “good” to “excellent” in both office and clinic situations. The method was remarkably free of undesirable side effects. The program has been adopted as a standard acne regimen at the dermatology clinic of the Royal Victoria Hospital, Montreal.     

Examination of polysaccharides for their uses in hybridoma cell culture

Summary An investigation was made to study the feasibility of using three polysaccharides, pectic acid, chitosan and cellulose sulfate, to prepare animal cell immobilization martrices. Pectic acid and cellulose sulfate were found to be biologically compatible with the cells. Cell death during the stationary phase was significant when chitosan was used, which was probably dye to cell membrane damage caused by chitosan.     

Encapsulation of tannase for the hydrolysis of tea tannins

Tannase was encapsulated in alginate, chitosan, carrageenan or pectin gel matrices, and in the case of alginate, coated with high or low molecular weight chitosan to reduce enzyme release. Cross-linking with glutaraldehyde also improved enzyme retention. Active enzyme preparations were obtained, although carrageenan gels were unstable in tea. Tannase activity was evaluated by reduction in centrifugable (flocculated) tea solids, and a reduction in tea cream measured turbidimetrically after removal of flocculated solids. Tannin interactions with the polysaccharide gels increased the level of centrifugable solids (flocculent) in the tea. An optimum bead formulation consisted of an alginate core, coated with chitosan and cross-linked with glutaraldehyde. Both core and coating materials contained active enzyme. Beads were prepared in a single step procedure involving extrusion of alginate/tannase solution into a hardening bath containing tannase-loaded, chitosan solution. Tannase retained hydrolytic activity through three successive batch cycles, for a total period of 39h processing, and tea cream was visibly removed by treatment with the immobilized tannase. Activity remained stable during 1-month bead storage under refrigeration.     

明胶—几丁糖膜的制备及其止血性能的实验研究

目的制备几丁糖膜以及研究其止血性能。方法 在透析后的几丁糖与明胶混合液中加入戊二醛交联后置入冻干机冻干制得几丁糖膜。取新西兰兔4只,在背部两侧对称性剪开直径1cm渗血伤口,分别用纱布和几丁糖膜止血,观察与创面的粘附情况,记录出血时间,以膜或纱布中Hb光度吸收值表示出血量。结果 几丁糖膜与创面粘附良好,几丁糖膜组、纱布组的出血时间分别为78.25±6.42秒、119.05±11.39秒,Hb光度吸收值为0.76±0.51、1.63±0.72,明显优于纱布对照组(P<0.01)。结论 几丁糖膜具有一定的止血性能。     

A genome-wide association study of severe teenage acne in European Americans

Despite the family aggregation of severe teenage acne, the genetic basis of this common skin condition remains unclear. We conducted a genome-wide association study (GWAS) on severe teenage acne in 928 European Americans. The SNP rs4133274 on chromosome 8q24 (72 kb upstream of MYC) revealed the most significant association with severe teenage acne (p value = 1.7 × 10^?6). The variant allele of this SNP (G allele) was associated with an increased risk of severe teenage acne with odds ratio of 4.01 (95 % confidence interval = 2.37–6.82). Upon further replication, our findings suggest new genetic basis of acne and may explain the association between acne and cancer risk observed in the epidemiological studies.     

Is it possible to track intracellular chitosan nanoparticles using magnetic nanoparticles as contrast agent?

Drug delivery systems prepared with nanostructures are able to overcome biological barriers. However, one of the main challenges in the use of these nanosystems is their internalization by macrophages. This study aims to prepare and characterize chitosan nanoparticles incorporating maghemite nanoparticles and investigate their intracellular tracking in RAW 264.7 macrophages in vitro. Then, maghemite nanoparticles were encapsulated within chitosan nanoparticles by ionotropic gelification method. The images from transmission electron microscopy were used to investigate the intracellular penetration of conjugated nanoparticles by macrophages using different times. Our data suggests that magnetic nanoparticles are suitable to act as a contrast agent to investigate the cellular internalization of chitosan nanoparticles.     

Sulfasalazine release from alginate-N,O-carboxymethyl chitosan gel beads coated by chitosan

In the present study, spherical beads were prepared from a water-soluble chitosan (N,O-carboxymethyl chitosan, NOCC) and alginate with ionic gelation method. Then, swollen calcium–alginate–NOCC beads were coated with chitosan. To prepare drug loaded beads, sulfasalazine (SA) was added to the initial aqueous polymer solution. The effect of coating, as well as drying procedure, on the swelling behavior of unloaded beads and SA release of drug loaded ones were evaluated in simulated gastrointestinal tract fluid. The rate of swelling and drug release were decreased for air-dried and coated beads in comparison with freeze-dried and uncoated ones, respectively. No burst release of drug was observed from whole tested beads. Chitosan coated beads released approximately 40% of encapsulated drug in simulated gastric and small intestine tract fluid. Based on these results, the chitosan coated alginate–NOCC hydrogel may be used as potential polymeric carrier for colon-specific delivery of sulfasalazine.     

Preparation and application of nanochitosan to finishing treatment with anti-microbial and anti-shrinking properties

In this study, we used low-molecular-weight chitosan (LWCS) to prepare nanochitosan (NCH) and applied this material to wool fabric finishing treatment. The diameters and zeta potential of the nanochitosan decreased as the value of the molecular weight of chitosan decreased. Additionally, the wool fabric was treated with various types of chitosan. The anti-bacterial and shrink-proofing properties of the treated fabric are ranked as following: NCH > LWCS > chitosan. The former two properties also increased as the concentration of nanochitosan increased. In addition, the nanochitosan-treated wool fabric possesses better anti-bacterial and shrink-proofing properties after washing for 20 times.     

青少年痤疮面部皮肤微生物群落结构变化

【背景】青少年痤疮是一种最常见的慢性炎症性损容性皮肤病,与痤疮丙酸杆菌的异常增殖有关。【目的】探究痤疮皮损区与附近无明显皮损区微生物组成与健康对照的差异,为从微生态角度防治痤疮提供理论基础。【方法】利用细菌16S rRNA基因V1-V2区和真菌TIS1高通量测序技术分析北京地区16岁青少年面部痤疮皮肤细菌和真菌群落结构,将痤疮皮损区与附近无明显皮损区微生物组成与健康组进行比较,寻找差异菌群。【结果】痤疮患者面部皮损区与附近无明显皮损区细菌多样性(Shannon指数)较健康对照组显著性降低(P0.001),主要与丙酸杆菌(痤疮丙酸杆菌)和葡萄球菌(表皮葡萄球菌PM221)显著性上升相关,而痤疮皮损区与附近未明显皮损区细菌组成无显著性差异。痤疮患者皮损区与附近无明显皮损区较健康对照组真菌丰富度(Chao1指数)显著性上升(P0.05),与限制性马拉色菌的显著上升相关。【结论】面部皮肤微生物变化与青少年痤疮的发生相关。本研究为从微生物角度防治痤疮提供理论依据。     

口腔大黄滴剂的实验研究

目的研制一种新型有效的牙周抗菌制剂,以代替常规用药。