慢性家族性良性天疱疮五家系ATP2C1基因突变分析

目的：检测中国汉族慢性家族性良性天疱疮5家系ATP2C1基因突变情况。方法：提取5家系中12例患者、13名表型正常及100名正常对照外周血基因组DNA，经PCR扩增后进行DNA测序，并使用Chromas软件解析。结果：家系1中3例患者存在ATP2C1基因第18号外显子c.1738A>G（p.I580V）突变，家系2 中2例患者存在ATP2C1基因第25号外显子c.2416C>T(p.R806*)突变，家系3中3例患者存在ATP2C1基因第15号外显子c.1250G>A（p.R417K）突变，家系4和家系5 中ATP2C1基因未发现突变。上述家系内表型正常个体及100名正常对照中均未检测到相应突变。结论：ATP2C1基因突变可能在3例汉族HHD家系内发挥致病作用。     

家族性慢性良性天疱疮2家系的基因突变分析

目的检测两个中国家族性慢性良性天疱疮(Hailey-Hailey disease,HHD)家系ATP2C1基因的致病性突变。方法收集两个中国HHD家系的临床资料和外周血标本,用基因组抽提试剂盒提取外周血DNA,用PCR反应扩增ATP2C1基因的所有外显子编码区及其侧翼序列,然后对扩增产物进行直接测序,并与100例正常对照组进行比较。结果发现两个新的杂合性突变,包括一个无义突变(p.Q633X)和一个移码突变(c.2164insACAT),这两个突变在家系正常成员和100例正常对照中没有发现。结论该结果表明这两个ATP2C1基因新突变可能导致中国汉族人HHD的发病,增加了ATP2C1基因突变数据库新的突变位点。     

Hailey-Hailey病四个家系的ATP2C1基因突变分析

目的检测Hailey-Hailey病(HHD)4个家系的致病基因ATP2C1,鉴定其突变位点和突变类型。方法采集4个HHD家系成员共9例患者和6名正常人,与100名无关健康对照者外周静脉血各2 ml,提取全基因组DNA。运用聚合酶链反应(PCR)扩增ATP2C1基因的全部28个外显子及其侧翼内含子序列,扩增产物纯化后进行DNA直接测序,BLAST比对分析其突变位点和突变方式。结果在9例HHD患者中共检出了3个ATP2C1基因致病突变:c.888_889ins T(p.296Tfs X2)、c.1330del C(p.443Qfs X33)和c.2416CT(p.Arg806X)。在4个HHD家系的6名正常者和100名健康对照者中均未发现上述突变。结论在9个HHD家系患者中存在2个移码突变(c.888_889ins T和c.1330del C)及1个无义突变(c.2416CT),其中2个移码突变为首次报道。这些突变的发现有助于HHD的诊断,并丰富了HHD相关ATP2C1突变数据库。     

家族性慢性良性天疱疮ATP2C1基因突变分析

目的探讨家族性慢性良性天疱疮(Hailey-Hailey disease,HHD)患者ATP2C1基因的突变情况。方法应用外周血DNA抽提、PCR和DNA直接测序等方法对中国非同族的2个HHD家系和2例散发患者的ATP2C1基因的27个外显子进行突变检测,并利用Pubmed和中国学术文献网络出版总库检索最近12年来国内外有关HHD患者ATP2C1基因突变分析的文献,统计分析结果。结果入组者发现1例剪切突变118-2A→G,1例错义突变K866T,1例无义突变S212X和1例缺失移码突变356fs2X。综述文献发现ATP2C1基因突变主要集中于3个功能区,此外还发现22外显子是亚洲人种HHD的高风险位点。结论这4例的突变方式目前国内外尚未见报道,可影响转录和翻译的结果,是造成相应家系和散发患者临床病变的特异突变。     

慢性家族性良性天疱疮两家系ATP2C1基因突变分析

目的对2例慢性家族性良性天疱疮(HHD)家系ATP2C1基因中可能存在的突变进行鉴别。方法收集2个HHD家系和100份无亲缘关系正常人外周血标本,采用聚合酶链反应方法扩增ATP2C1基因的全部外显子并测序,结果和Genbank中相应序列进行比对。结果家系1中所有患者ATP2C1基因检测到第17号外显子存在一个新的无义突变c.T1431A(p.C477X);家系2中所有患者第24外显子发现一个已报道的移码突变c.2374delTTTG(791LfsX9)。结论两个家系中存在ATP2C1基因的变异,导致编码蛋白的结构和功能发生改变。     

慢性家族性良性天疱疮合并尖锐湿疣1例及其家系的临床及基因突变分析

目的分析1例慢性家族性良性天疱疮(Hailey-Hailey disease,HHD)合并尖锐湿疣(condyloma acuminatum,CA)患者的临床特征及治疗方法,并鉴定基因突变。方法收集该患者及其家系的临床资料和血样,采用聚合酶链反应方法扩增ATP2C1基因的全部外显子并测序。结果基因测序发现患者与其次子ATP2C1基因21号外显子有错义突变TM661R。该患者予以阿维A口服治疗,病情得以控制。结论对HHD进行基因测序分析是可行有效的诊断方法。对于HHD合并尖锐湿疣患者,口服阿维A是一种有效的治疗方法。     

中国慢性家族性良性天疱疮ATP2C1基因新的杂合无义突变一家系报告

目的分析中国慢性家族性良性天疱疮(HHD)一家系遗传学特点。方法收集中国HHD一家系及100例匹配的对照组,抽取外周血后,按标准方法提取基因组DNA。ATP2C1基因所有外显子和外显子内含子交界区序列采用PCR扩增,并直接测序。结果在ATP2C1的第25号外显子发现一个新的杂合无义突变c.2395 CT(p.R799X)。结论本研究结果丰富了HHD患者ATP2C1基因突变谱,为后续的遗传咨询,产前诊断及未来的基因治疗奠定了基础。     

哈萨克族毛囊角化病一家系ATP2A2基因突变研究

目的 探讨哈萨克族毛囊角化病一家系患者ATP2A2基因突变.方法 收集哈萨克族毛囊角化病49人家系的临床资料,采集44名家系成员和100例无亲缘关系健康人外周血,提取基因组DNA.采用PCR和DNA测序对该家系进行ATP2A2基因突变检测.结果 该家系毛囊角化病遗传方式属于常染色体显性遗传.家系中11例患者在ATP2A2基因12号外显子的剪切位点发生杂合突变(1288-1G→A),即第1288-1位碱基由G突变为A,而家系中33例正常成员及100例健康对照均未发现该突变.结论 该家系毛囊角化病发病可能是由ATP2A2基因12号外显子的剪切位点发生杂合突变(1288-1G→A)所致.     

大疱及疱疹性皮肤病

20121985慢性家族性良性天疱疮两家系ATP2C1基因突变分析/许庆强(西安交大二附院皮肤科),程纯忠,霍佳…∥中国皮肤性病学杂志.-2012,26(6).-475～476,485对2例家族性良性天疱疮(HHD)家系ATP2C1基因中可能存在的突变进行鉴别。收集2个HHD家系和100份无亲缘关系正常人外周血标本,采用聚合酶链反应扩增ATP2C1基因的全部外显子并测序,结果和Genbank中相应序列进行比对。结果:家系1中所有患     

家族性良性天疱疮患者ATP2C1基因突变研究

目的 探讨3个家族性良性天疱疮家系和1例散发患者的ATP2C1基因突变。方法 采取家系中患病成员外周血,应用外周血细胞DNA抽提、PCR扩增和DNA直接测序等方法检测ATP2C1基因突变情况,用反向测序验证突变,用100例无血缘关系个体作正常人对照。结果 在2个家族性良性天疱疮家系和1例散发患者中发现3个未曾报道的错义突变。家系1第20外显子2048位碱基G→A,导致错义突变R619K;家系2第8外显子853位碱基A→C,导致错义突变T221P;散发患者第23外显子2323位碱基T→C,导致错义突变Y711H。家系中非患病成员和100例无血缘关系正常人均未发现这些改变。在1个家族性良性天疱疮家系未检测到基因突变。结论 发现家族性良性天疱疮3种新的ATP2C1基因突变位点。     

New fillers for the new man

ABSTRACT:  Two new collagen-based lidocaine-containing dermal fillers, ArteSense™/ArteFill™ (Artes Medical, San Diego, CA) and Evolence® (Colbar LifeScience Ltd., Herzliya, Israel), have proved to be of particular interest to men, many of whom seek a long-lasting or permanent correction. ArteFill™ has been available in the United States since 2006, and it is expected that Evolence® will reach the American market in 2008. The properties of the two products will be described, and experience based on the administration of many hundreds of syringes of both products by a Canadian dermatologist will be detailed here, with tips and precautions to optimize patient outcomes.     

Outcomes and adverse effects of ablative vs nonablative lasers for skin resurfacing: A systematic review of 1093 patients

It is generally believed that ablative laser therapies result in prolonged healing and greater adverse events when compared with nonablative lasers for skin resurfacing. To evaluate the efficacy of ablative laser use for skin resurfacing and adverse events as a consequence of treatment in comparison to other modalities, a PRISMA‐compliant systematic review (Systematic Review Registration Number: 204016) of twelve electronic databases was conducted for the terms “ablative laser” and “skin resurfacing” from March 2002 until July 2020. Studies included meta‐analyses, randomized control trials, cohort studies, and case reports to facilitate evaluation of the data. All articles were evaluated for bias. The search strategy produced 34 studies. Of 1093 patients included in the studies of interest, adverse events were reported in a total of 106 patients (9.7%). Higher rates of adverse events were described in nonablative therapies (12.2% ± 2.19%, 31 events) when compared with ablative therapy (8.28% ± 2.46%, 81 events). 147 patients (13.4%) reported no side effects, 68 (6.22%) reported expected, transient self‐resolving events, and five (0.046%) presented with hypertrophic scarring. Excluding transient events, ablative lasers had fewer complications overall when compared with nonablative lasers (2.56% ± 2.19% vs 7.48% ± 3.29%). This systematic review suggests ablative laser use for skin resurfacing is a safe and effective modality to treat a range of pathologies from photodamage and acne scars to hidradenitis suppurativa and posttraumatic scarring from basal cell carcinoma excision. Further studies are needed, but these results suggest that ablative lasers are a superior, safe, and effective modality to treat damaged skin.     

Genetic alterations in RAS‐regulated pathway in acral lentiginous melanoma

Studies integrating clinicopathological and genetic features have revealed distinct patterns of genomic aberrations in Melanoma. Distributions of BRAF or NRAS mutations and gains of several oncogenes differ among melanoma subgroups, while 9p21 deletions are found in all melanoma subtypes. In the study, status of genes involved in cell cycle progression and apoptosis was evaluated in a panel of 17 frozen primary acral melanomas. NRAS mutations were found in 17% of the tumors. In contrast, BRAF mutations were not found. Gains of AURKA gene (20q13.3) were detected in 37.5% of samples, gains of CCND1 gene (11q13) or TERT gene (5p15.33) in 31.2% and gains of NRAS gene (1p13.2) in 25%. Alterations in 9p21 were identified in 69% of tumors. Gains of 11q13 and 20q13 were mutually exclusive, and 1p13.2 gain was associated with 5p15.33. Our findings showed that alterations in RAS‐related pathways are present in 87.5% of acral lentiginous melanomas.     

Self‐resolving superficial primary cutaneous mucormycosis in a 7‐week‐old infant

A 7‐week‐old girl, born at 30 weeks' gestational age, presented to clinic for evaluation of a crop of vesicular lesions that were noted after removal of a bandage that had been in place for 4 days. A punch biopsy of the lesion revealed fungal elements that were later identified as Rhizopus spp. The lesion began to self‐resolve, and no further treatment was needed, with full resolution of the lesion by 1 month after presentation. Clinicians should be aware of the variable presentations of mucormycosis and consider fungal infection in the differential diagnosis when evaluating vulnerable patients with skin eruptions.     

Multiple New-Onset Subcutaneous Nodules of the Upper Extremity Digits: Giant Cell Tumor of Tendon Sheath and Lipoma

A black woman with the concurrent onset of two subcutaneous nodules located on the digits of her upper extremities is described. Initially, a single systemic disorder was considered; yet, the lesions differed in morphology and consistency. Microscopic examination of the nodules showed a giant cell tumor of tendon sheath and a lipoma. Although Occam's “razor” suggests that multiple lesions in the same person are more likely to represent variable manifestations of a single disorder than several different diseases in that individual, the simultaneously appearing lesions in this patient represented two different conditions.