Vesicular pityriasis rosea: response to erythromycin treatment

Pityriasis rosea (PR) is a relatively common disease although its aetiology has not yet been identified. It occurs worldwide and there is no racial susceptibility factor. It usually affects teenagers and young adults between 10 and 35 years of age. Typical PR is much easier to diagnose than the rare atypical forms. We report a rare case of vesicular PR in a black woman who had vesicular lesions limited to her palms and soles in addition to regular typical lesions. We devised an efficient oral erythromycin treatment for this patient.     

Humoral immunity to Malassezia furfur serovars A, B and C in patients with pityriasis versicolor, seborrheic dermatitis and controls

Abstract This study examined the humoral immune responses to Malassezia furfur serovars A, B and C of 10 patients with pityriasis versicolor, 10 patients with seborrheic dermatitis and 20 age- and sex-matched controls. A transferable solid-phase ELISA was used to determine titres of total Igs, IgM, IgA and IgG specific to M. furfur serovars A, B and C. The results demonstrated that patients with seborrheic dermatitis had a significantly higher litre of total Igs to serovar A than patients with pityriasis versicolor; and that patients with seborrheic dermatitis had a significantly higher litre of IgA to serovar C than patients with pityriasis versicolor. The litres of total Igs for controls and patienls with seborrheic dermatitis were significantly lower to serovar B than to serovar C. A modified TSP ELISA was used to determine the titres of the IgG subclasses. Titres of IgG _1,3,4 to serovar B were significantly higher in seborrheic dermatitis patients than pityriasis versicolor patients and litres of IgG₃, to serovar A were significantly higher in seborrheic dermatitis patients than pityriasis versicolor patients. However, despite the differences between the patient groups, none of these results was significantly different to those of controls. Thus, this study did not demonstrate any differences in humoral immunity of patients suffering from Malassezia-associated dermatoses when compared to normal controls. These results may suggest that the humoral immune response to M. furfur is not related to the pathogenesis of Malassezia-associated dermatoses, but simply to the carriage of M. furfur on the skin.     

红景天镇静催眠作用的实验研究

目的探讨中药红景天(Rhodiola rosea)的镇静催眠作用。方法取雄性SD大鼠30只,设正常对照组(不灌服任何药物)、阴性对照组(灌服羧甲基纤维素钠溶液)、地西泮组(灌服地西泮溶液)、红景天低剂量组(灌服低剂量红景天)、红景天中剂量组(灌服中剂量红景天)和红景天高剂量组(灌服高剂量红景天),每组5只。灌服药物1h后,各组动物按照55mg/kg的剂量腹腔注射0.1%戊巴比妥钠溶液,记录每只大鼠从腹腔注射戊巴比妥钠到翻正反射消失的时间为睡眠潜伏期,翻正反射消失的到翻正反射开始出现的时间为睡眠时间,观察灌服不同剂量红景天对大鼠睡眠潜伏期及睡眠时间的影响。结果与正常对照组(3.24±0.22、93.96±2.25)相比,灌服中剂量及高剂量的红景天可以缩短大鼠的睡眠潜伏期(2.42±0.33,P<0.01;2.16±0.13,P<0.01),亦可延长大鼠的睡眠时间(102.54±3.15,P<0.05;107.10±7.75,P<0.05)。结论中剂量及高剂量的的红景天对大鼠具有镇静催眠作用。     

红花锦鸡儿化学成分的研究

 目的 研究红花锦鸡儿（Caragana rosea）的化学成分。方法 用色谱技术进行分离纯化，根据理化性质和光谱分析对化合物的结构进行鉴定。结果 从红花锦鸡儿茎的95%乙醇提取物的氯仿萃取物中分离得到5个甾醇化合物和1个三萜化合物，其结构分别鉴定为7α-羟基-β-谷甾醇(1)、7β-羟基-β-谷甾醇(2)、5α-豆甾烷-3β,6α-二醇(3)、β-谷甾醇(4)、胡萝卜苷(5)和齐墩果酸(6)。结论 所有化合物均为首次从红花锦鸡儿中分离得到。     

红景天提取液精制工艺的考察

目的：优选红景天提取液的精制工艺。方法：采用了醇沉法和絮凝法两种精制方法。结果：壳聚糖絮凝法优于明胶絮凝法。壳聚糖絮凝法与醇沉法比较红帚天苷保留率分别为95．32％，88.15％；固体物保留率分别为59.7％，63．0％。结论：壳聚糖絮凝法的红景天苷保留率明显高于醇沉法，且两种工艺的固体量无显著性差异。     

玫瑰疹病毒属与玫瑰糠疹发病的相关性研究现况

玫瑰糠疹是一种病因尚未明确的炎症性、自限性红斑鳞屑性皮肤病，至今病因尚未明确。近年来，关于玫瑰糠疹与玫瑰疹病毒属人疱疹病毒6、7型的研究较为深入，本文对相关文献进行了综述。     

Novel dermoscopic features of pityriasis versicolor–like macules in epidermodysplasia verruciformis

Epidermodysplasia verruciformis (EV) manifests early in childhood as pityriasis versicolor (PV)–like macules on sun-exposed sites such as the face. These hypopigmented lesions closely resemble commoner pediatric dermatoses such as PV or pityriasis alba. In this report of two cases, we describe the distinguishing dermoscopic features of PV-like macules in EV. Unfocused dotted vessels in a hypopigmented or erythematous background with whitish scales and pigment diluted vellus hairs on dermoscopy should raise the suspicion of EV in children presenting with PV-like lesions.     

盐酸伐昔洛韦联合复方甘草酸苷治疗玫瑰糠疹的临床观察

目的:观察盐酸伐昔洛韦联合复方甘草酸苷治疗玫瑰糠疹的临床疗效和安全性。方法:将107例玫瑰糠疹患者随机分为对照组(志愿者,n=37)、观察组(n=35)和研究组(n=35)。对照组患者不给予用药治疗,等待自愈;观察组患者给予复方甘草酸苷3片,口服,每日3次;研究组患者在观察组治疗的基础上给予盐酸伐昔洛韦250 mg,口服,每日3次。3组患者均观察2周。观察3组患者未用药或用药1周、2周后疗效,并记录不良反应发生情况。结果:治疗1周后,研究组患者总有效率>观察组>对照组,3组比较差异有统计学意义(P<0.05);治疗2周后,研究组与观察组患者总有效率均显著高于对照组,差异均有统计学意义(P<0.05),但研究组与观察组比较差异无统计学意义(P>0.05)。3组患者观察期间均未见明显不良反应发生。结论:盐酸伐昔洛韦联合复方甘草酸苷治疗玫瑰糠疹较单用复方甘草酸苷或未用药物疗效较好、起效较快,安全性相似。     

复方青黛胶囊配合窄谱中波紫外线治疗玫瑰糠疹的临床观察

目的探讨复方青黛胶囊配合窄谱中波紫外线治疗玫瑰糠疹的临床疗效。方法选取2011年1月至2012年12月在我院治疗的玫瑰糠疹患者82例,按照随机数字表法随机分为治疗组40例,对照组42例。治疗组采用复方青黛胶囊配合窄谱中波紫外线治疗;对照组采用窄谱中波紫外线治疗。结果治疗组总有效率(90.5%)明显高于对照组(67.5%),两组比较差异具有统计学意义(P<0.05);对照组不良反应发生率(17.5%)与治疗组(12.5%)比较,差异无统计学意义(P>0.05)。结论复方青黛胶囊配合窄谱中波紫外线治疗玫瑰糠疹临床疗效明显且不良反应较轻,值得推广。