寻常型天疱疮患者血清对HaCaT细胞Dsg、MMP-9表达的影响

 目的:探讨寻常型天疱疮（PV）患者血清对HaCaT细胞桥粒芯蛋白（Dsg）1、3和基质金属蛋白酶（MMP）9表达的影响及其参与PV棘层松解的可能机制。方法:用含5%PV血清的高糖DMEM培养基孵育HaCaT细胞，以正常培养组、健康血清组以及抗Dsg3抗体组（阳性对照组）作为对照。刮取细胞提取总RNA及蛋白质，Q PCR检测Dsg1、Dsg3和MMP 9 mRNA转录水平，Western Blot检测Dsg1、Dsg3和MMP 9表达，荧光单克隆Dsg1/3抗体分别检测细胞表面Dsg1、Dsg3表达。 结果:Q PCR结果显示：与正常培养组比较，含5% PV血清培养组HaCaT细胞Dsg1、Dsg3、MMP 9基因的mRNA相对表达量分别上升约432%、402%、402%，而抗Dsg3抗体组分别上升约495%、488%、604%，PV血清组与正常培养组间有明显差异（P值均<0.05）。 Western Blot结果显示：与正常培养组相比，PV血清组HaCaT细胞表面Dsg1、Dsg3、MMP 9蛋白表达升高。Dsg1、Dsg3荧光单克隆抗体检测显示：PV血清组HaCaT表面Dsg1线状荧光消失，替代为颗粒状、团块状荧光颗粒分散于细胞表面和胞浆区域，而细胞表面Dsg3线状荧光仍然存在，但强度减弱。 结论:PV血清能促进Dsg1、Dsg3和MMP 9转录及表达，Dsg3抗体可通过诱导角质形成细胞Dsg1蛋白内吞，削弱抗体补偿作用参与棘层松解。     

加味黑布膏对大鼠耳廓复合痤疮模型局部组织IL-2及EGF的影响

目的通过观察加味黑布膏对大鼠耳廓复合痤疮模型IL-2及EGF的影响,研究加味黑布膏对大鼠痤疮的干预机制。方法按随机数字表法将72只雌雄各半的Wistar大鼠平均分为6组,分别是:空白组、模型组、加味黑布膏高、中、低剂量组以及阳性对照组。除空白组外用Kligman法对大鼠耳廓进行造模,21 d后,随机抽取4只进行病理切片观察,提示造模成功后开始外用药物,空白组和模型组不给予药物治疗,黑布膏低、中、高剂量组分别给予不同剂量的加味黑布膏,外用1次/d,阳性对照组给予0.025%的维A酸乳膏,给药1次/d,连续用药4周,4周后对大鼠进行局部组织采样,并采用ELISA法检测样品中IL-2以及EGF的含量。结果经4周治疗后各组局部组织中IL-2以及EGF较模型组均有所下降(P<0.05),加味黑布膏中、低剂量组中所测因子与阳性对照组比较差异无统计意义(P>0.05),高剂量组与阳性对照组比较差异有统计学意义(P<0.01)。结论加味黑布膏治疗痤疮疗效明确,可能与加味黑布膏降低局部组织中IL-2及EGF有关。     

Perspectives on the International Recommendations for the Diagnosis and Treatment of Polycystic Ovary Syndrome in Adolescence

Recommendations have been provided for the diagnosis and therapy of polycystic ovary syndrome in adolescence from 3 international expert conferences 2015-2018. Despite agreement about essentials, differences among details of these recommendations have engendered confusion. This commentary provides perspective about the agreements and disagreements among these recommendations and how these recommendations relate to other guidance. It concludes with practice suggestions that align with these recommendations.     

0.1％他克莫司软膏治疗青少年寻常型银屑病临床疗效观察

目的观察应用0.1%他克莫司软膏治疗青少年寻常型银屑病的临床疗效。方法选取我中心皮肤病性病门诊部治疗的寻常型银屑病未成年患者66例,利用随机数表法分为两组,每组33例,观察组应用0.1%他克莫司软膏治疗,对照组应用卤米松乳膏治疗,选取治疗前、治疗2周、治疗4周、治疗8周为观察点,比较两组患者皮损面积及严重程度的改善情况,并评价疗效。结果治疗2周、4周、8周,与治疗前相比,观察组患者的PASI(银屑病面积与严重性指数)改善水平均显著优于对照组(P <0.05);治疗期间,观察组不良反应率为6.1%,也明显低于对照组15.2%(P <0.05)。结论 0.1%他克莫司软膏用于治疗青少年寻常型银屑病安全有效,且副作用小,值得临床应用。     

Various tumors in the nasal vestibule

Various types of diseases can involve the nasal vestibule. Diagnosis and treatment of a nasal vestibular mass is often challenging due to the anatomical features of the nasal vestibule. Here, we present four cases with nasal vestibular masses. Two cases were diagnosed as squamous papillomas. The others were a trichofolliculoma and pseudoepitheliomatous hyperplasia with hyperkeratosis. Our aim was to discuss the characteristics of each disease and the considerations thought to be necessary for diagnosis and treatment of nasal vestibular tumors from these cases and the related literature.     

Long‐term efficacy of psoriasis vulgaris treatments: Analysis of treatment with topical corticosteroid and/or vitamin D3 analog,oral cyclosporin,etretinate and phototherapy over a 35‐year period, 1975–2010

Various therapies have been tried for psoriasis. In Japan, biologics began to be used for psoriasis treatment in January 2010. Their clinical efficacy is well known, but biologics cannot be used in all psoriasis patients for reasons such as side‐effects and cost. It is necessary to evaluate the effect of long‐term psoriasis treatment, but there have been no reports evaluating long‐term treatment. Therefore, the outcomes of patients who had been treated at the Tokai University Hospital for more than 5 years, before biological agents were released, were examined. Three categories, classified by initial severity, changes in severity by method of treatment and background characteristics, were investigated. In conclusion, cases of long‐term treatment with a combination of topical corticosteroid and topical vitamin D₃ analog or oral cyclosporin were found to be effective therapies. Patients with a history of diabetes mellitus or cardiovascular disease of psoriasis were likely to be treatment resistant.     

Successful treatment of acne keloidalis nuchae with erbium:YAG laser: a comparative study

Background: Acne keloidalis nuchae (AKN) is a chronic inflammatory disease involving hair follicles of the neck. It is a form of keloidal scarring alopecia that is often refractory to medical or surgical management.

Objective: To evaluate the efficacy of Er:YAG laser in the treatment of AKN as compared to long pulsed Nd:YAG laser. Patients and

Methods: This study was conducted on 30 male patients with AKN. Their ages ranged from 19 to 47 years with a mean age of 36.87 ± 7.8 years. Patients were divided randomly into two groups of 15 patients, each receiving six sessions of either Er:YAG or long-pulsed Nd:YAG laser therapy.

Results: A statistically significant decrease in the number of papules was detected at the end of therapy in both groups, with a mean of 91.8% improvement in the Er:YAG group versus 88% in the Nd:YAG group. A significant decrease in plaques count was detected only in the Er: YAG group while a significant decrease in plaques size and consistency was recorded in both groups.

Conclusion: The Er: YAG laser proved to be a potentially effective and safe modality both in the early and late AKN lesions.