瘙痒是皮肤病最典型和最重要的临床症状之一,也是皮肤病加重或复发的重要诱因之一。瘙痒严重影响患者的身心健康和生活质量,给患者、家庭和社会带来沉重的负担。瘙痒的发生和调控机制复杂,目前尚未阐明。临床研究显示在疥疮、慢性瘙痒...瘙痒是皮肤病最典型和最重要的临床症状之一,也是皮肤病加重或复发的重要诱因之一。瘙痒严重影响患者的身心健康和生活质量,给患者、家庭和社会带来沉重的负担。瘙痒的发生和调控机制复杂,目前尚未阐明。临床研究显示在疥疮、慢性瘙痒、特应性皮炎和银屑病中均存在瘙痒夜间加重的情况,提示皮肤瘙痒可呈昼夜节律性改变。皮质醇、褪黑素、人体核心温度、细胞因子及前列腺素等因素是瘙痒昼夜节律的主要调控因素。一些生物钟基因如BMAL1、CLOCK、PER和CRY等,通过调节Janus激酶(Janus tyrosine kinase,JAK)-信号转导和转录激活因子(signal transducer and activator of transcription,STAT)通路与转录因子蛋白家族核因子κB(nuclear factor kappa-B,NF-κB)等信号通路,在瘙痒的昼夜节律的调节中扮演重要角色。然而生物钟基因对瘙痒昼夜节律调控的具体作用机制尚未完全阐明,进一步研究生物钟基因在瘙痒昼夜节律调控中的作用机制,将为阐明瘙痒的调控机制奠定基础,亦可为控制瘙痒和缓解皮肤病提供新的思路。展开更多
Objective:Verrucous epidermal nevus(VEN),seborrheic keratosis(SK),verruca plana(VP),verruca vulgaris(VV),and nevus sebaceous(NS)are common verrucous proliferative skin diseases with similar clinical appearances,often ...Objective:Verrucous epidermal nevus(VEN),seborrheic keratosis(SK),verruca plana(VP),verruca vulgaris(VV),and nevus sebaceous(NS)are common verrucous proliferative skin diseases with similar clinical appearances,often posing diagnostic challenges.Dermoscopy and reflectance confocal microscopy(RCM)can aid in their differentiation,yet their specific features under these tools have not been systematically described.This study aims to summarize and analyze the dermoscopic and RCM features of VEN,SK,VP,VV,and NS.Methods:A total of 121 patients with histopathologically confirmed verrucous proliferative skin diseases were enrolled.Dermoscopy and RCM imaging was used to observe and analyze the microscopic features of these conditions.Results:Under dermoscopy,the 5 diseases displayed distinct characteristics:VEN typically showed gyriform structures;SK was characterized by gyriform structures,comedo-like openings,and milia-like cysts;VP and VV featured dotted vessels and frogspawn-like structures;NS presented as brownish-yellow globules.RCM revealed shared features such as hyperkeratosis and acanthosis across all 5 diseases.Specific features included gyriform structures and elongated rete ridges in VEN;pseudocysts and gyriform structures in SK;evenly distributed ring-like structures in VP;vacuolated cells and papillomatous proliferation in VV;and frogspawn-like structures in NS.Conclusion:These 5 verrucous proliferative skin conditions exhibit distinguishable features under both dermoscopy and RCM.The combination of these 2 noninvasive imaging modalities holds significant clinical value for the differential diagnosis of verrucous proliferative skin diseases.展开更多
Currently,research on N^(6)-methyladenine(m^(6)A)is extensive in the field of oncology,while studies involving m^(6)A and skin diseases remain relatively limited.Based on existing reports,we searched PubMed and Web of...Currently,research on N^(6)-methyladenine(m^(6)A)is extensive in the field of oncology,while studies involving m^(6)A and skin diseases remain relatively limited.Based on existing reports,we searched PubMed and Web of Science for literature related to m^(6)A and dermatological conditions.Analysis of citation counts and journal impact factors revealed a significant upward trend in the volume of m^(6)A-related research.Term frequency analysis of titles and abstracts indicated that studies mainly focus on skin tumors and inflammatory or immune-related skin diseases,particularly melanoma,psoriasis,and skin development.Transcriptomic data from the Gene Expression Omnibus(GEO)were analyzed,revealing differential expression of m^(6)A-related genes in 4 types of skin tumors(including squamous cell carcinoma and basal cell carcinoma)as well as in inflammatory skin diseases such as psoriasis and atopic dermatitis,and potential mechanisms of action were also explored.Findings suggest that m^(6)A modifications exhibit heterogeneity between neoplastic and nonneoplastic skin diseases.However,the regulatory mechanisms of m^(6)A dynamic modifications on key genes involved in dermatological disorders remain unclear and warrant further investigation.展开更多
Objective:The causal relationship between eczema and autoimmune diseases has not been previously reported.This study aims to evaluate the causal relationship between eczema and autoimmune diseases.Methods:The two‐sam...Objective:The causal relationship between eczema and autoimmune diseases has not been previously reported.This study aims to evaluate the causal relationship between eczema and autoimmune diseases.Methods:The two‐sample Mendelian randomization(MR)method was used to assess the causal effect of eczema on autoimmune diseases.Summary data from the Genome-Wide Association Study Catalog(GWAS)were obtained from the Integrative Epidemiology Unit(IEU)database.For eczema and autoimmune diseases,genetic instrument variants(GIVs)were identified according to the significant difference(P<5×10−8).Causal effect estimates were generated using the inverse‐variance weighted(IVW)method.MR Egger,maximum likelihood,MR-PRESSO,and MR-RAPS methods were used for alternative analyses.Sensitivity tests,including heterogeneity,horizontal pleiotropy,and leave-one-out analyses,were performed.Finally,reverse causality was assessed.Results:Genetic susceptibility to eczema was associated with an increased risk of Crohn’s disease(OR=1.444,95%CI 1.199 to 1.738,P<0.001)and ulcerative colitis(OR=1.002,95%CI 1.001 to 1.003,P=0.002).However,no causal relationship was found for the other 6 autoimmune diseases,including systemic lupus erythematosus(SLE)(OR=0.932,P=0.401),bullous pemphigoid(BP)(OR=1.191,P=0.642),vitiligo(OR=1.000,P=0.327),multiple sclerosis(MS)(OR=1.000,P=0.965),ankylosing spondylitis(AS)(OR=1.001,P=0.121),rheumatoid arthritis(RA)(OR=1.000,P=0.460).Additionally,no reverse causal relationship was found between autoimmune diseases and eczema.Conclusion:Eczema is associated with an increased risk of Crohn’s disease and ulcerative colitis.No causal relationship is found between eczema and SLE,MS,AS,RA,BP,or vitiligo.展开更多
目的:研究臭氧外用对特应性皮炎患者皮损处金黄色葡萄球菌定植的作用及其与病情的相关性。方法:招募6~65岁中重度特应性皮炎患者,选取两侧对称皮损作为靶部位,对照侧靶部位皮损采用温水洗浴联合基础油外涂,治疗侧靶部位皮损及全身余处...目的:研究臭氧外用对特应性皮炎患者皮损处金黄色葡萄球菌定植的作用及其与病情的相关性。方法:招募6~65岁中重度特应性皮炎患者,选取两侧对称皮损作为靶部位,对照侧靶部位皮损采用温水洗浴联合基础油外涂,治疗侧靶部位皮损及全身余处用臭氧水洗浴并联合外用臭氧油,每天治疗2次,连续治疗7 d。定量检测靶部位皮损处金黄色葡萄球菌的变化,评估患者治疗前后靶部位皮损及全身病情变化,分析患者病情变化与皮损处金黄色葡萄球菌载量变化的相关性。结果:与治疗前及对照侧皮损比较,治疗第7天治疗侧靶部位皮损红斑和丘疹明显减少,瘙痒减轻;治疗侧靶部位皮损金黄色葡萄球菌载量在治疗第3,7天分别下降(75.55±21.81)%,(97.24±2.64)%;治疗第7天,治疗侧和对照侧金黄色葡萄球菌载量下降差异有统计学意义(P<0.01);治疗第7天,患者的特应性皮炎评分(scoring of atopic dermatitis,SCORAD)、睡眠及瘙痒评分较治疗前均显著降低(P<0.01);臭氧治疗皮损处金黄色葡萄球菌载量下降率与SCORAD评分的下降率呈正相关(r=0.916,P=0.001)。结论:臭氧外用能有效减少特应性皮炎患者皮损处金黄色葡萄球菌的载量并缓解中重度特应性皮炎患者病情。展开更多
文摘瘙痒是皮肤病最典型和最重要的临床症状之一,也是皮肤病加重或复发的重要诱因之一。瘙痒严重影响患者的身心健康和生活质量,给患者、家庭和社会带来沉重的负担。瘙痒的发生和调控机制复杂,目前尚未阐明。临床研究显示在疥疮、慢性瘙痒、特应性皮炎和银屑病中均存在瘙痒夜间加重的情况,提示皮肤瘙痒可呈昼夜节律性改变。皮质醇、褪黑素、人体核心温度、细胞因子及前列腺素等因素是瘙痒昼夜节律的主要调控因素。一些生物钟基因如BMAL1、CLOCK、PER和CRY等,通过调节Janus激酶(Janus tyrosine kinase,JAK)-信号转导和转录激活因子(signal transducer and activator of transcription,STAT)通路与转录因子蛋白家族核因子κB(nuclear factor kappa-B,NF-κB)等信号通路,在瘙痒的昼夜节律的调节中扮演重要角色。然而生物钟基因对瘙痒昼夜节律调控的具体作用机制尚未完全阐明,进一步研究生物钟基因在瘙痒昼夜节律调控中的作用机制,将为阐明瘙痒的调控机制奠定基础,亦可为控制瘙痒和缓解皮肤病提供新的思路。
基金supported by the Project of Health Committee of Hunan Province(D202304128868),China.
文摘Objective:Verrucous epidermal nevus(VEN),seborrheic keratosis(SK),verruca plana(VP),verruca vulgaris(VV),and nevus sebaceous(NS)are common verrucous proliferative skin diseases with similar clinical appearances,often posing diagnostic challenges.Dermoscopy and reflectance confocal microscopy(RCM)can aid in their differentiation,yet their specific features under these tools have not been systematically described.This study aims to summarize and analyze the dermoscopic and RCM features of VEN,SK,VP,VV,and NS.Methods:A total of 121 patients with histopathologically confirmed verrucous proliferative skin diseases were enrolled.Dermoscopy and RCM imaging was used to observe and analyze the microscopic features of these conditions.Results:Under dermoscopy,the 5 diseases displayed distinct characteristics:VEN typically showed gyriform structures;SK was characterized by gyriform structures,comedo-like openings,and milia-like cysts;VP and VV featured dotted vessels and frogspawn-like structures;NS presented as brownish-yellow globules.RCM revealed shared features such as hyperkeratosis and acanthosis across all 5 diseases.Specific features included gyriform structures and elongated rete ridges in VEN;pseudocysts and gyriform structures in SK;evenly distributed ring-like structures in VP;vacuolated cells and papillomatous proliferation in VV;and frogspawn-like structures in NS.Conclusion:These 5 verrucous proliferative skin conditions exhibit distinguishable features under both dermoscopy and RCM.The combination of these 2 noninvasive imaging modalities holds significant clinical value for the differential diagnosis of verrucous proliferative skin diseases.
基金supported by the National Natural Science Foundation,China(82103704).
文摘Currently,research on N^(6)-methyladenine(m^(6)A)is extensive in the field of oncology,while studies involving m^(6)A and skin diseases remain relatively limited.Based on existing reports,we searched PubMed and Web of Science for literature related to m^(6)A and dermatological conditions.Analysis of citation counts and journal impact factors revealed a significant upward trend in the volume of m^(6)A-related research.Term frequency analysis of titles and abstracts indicated that studies mainly focus on skin tumors and inflammatory or immune-related skin diseases,particularly melanoma,psoriasis,and skin development.Transcriptomic data from the Gene Expression Omnibus(GEO)were analyzed,revealing differential expression of m^(6)A-related genes in 4 types of skin tumors(including squamous cell carcinoma and basal cell carcinoma)as well as in inflammatory skin diseases such as psoriasis and atopic dermatitis,and potential mechanisms of action were also explored.Findings suggest that m^(6)A modifications exhibit heterogeneity between neoplastic and nonneoplastic skin diseases.However,the regulatory mechanisms of m^(6)A dynamic modifications on key genes involved in dermatological disorders remain unclear and warrant further investigation.
基金This work was supported by the National Natural Science Foundation (82273506,82273508)the Hunan Provincial Health Commission Scientific Research Plan Project (D202304128334),China。
文摘Objective:The causal relationship between eczema and autoimmune diseases has not been previously reported.This study aims to evaluate the causal relationship between eczema and autoimmune diseases.Methods:The two‐sample Mendelian randomization(MR)method was used to assess the causal effect of eczema on autoimmune diseases.Summary data from the Genome-Wide Association Study Catalog(GWAS)were obtained from the Integrative Epidemiology Unit(IEU)database.For eczema and autoimmune diseases,genetic instrument variants(GIVs)were identified according to the significant difference(P<5×10−8).Causal effect estimates were generated using the inverse‐variance weighted(IVW)method.MR Egger,maximum likelihood,MR-PRESSO,and MR-RAPS methods were used for alternative analyses.Sensitivity tests,including heterogeneity,horizontal pleiotropy,and leave-one-out analyses,were performed.Finally,reverse causality was assessed.Results:Genetic susceptibility to eczema was associated with an increased risk of Crohn’s disease(OR=1.444,95%CI 1.199 to 1.738,P<0.001)and ulcerative colitis(OR=1.002,95%CI 1.001 to 1.003,P=0.002).However,no causal relationship was found for the other 6 autoimmune diseases,including systemic lupus erythematosus(SLE)(OR=0.932,P=0.401),bullous pemphigoid(BP)(OR=1.191,P=0.642),vitiligo(OR=1.000,P=0.327),multiple sclerosis(MS)(OR=1.000,P=0.965),ankylosing spondylitis(AS)(OR=1.001,P=0.121),rheumatoid arthritis(RA)(OR=1.000,P=0.460).Additionally,no reverse causal relationship was found between autoimmune diseases and eczema.Conclusion:Eczema is associated with an increased risk of Crohn’s disease and ulcerative colitis.No causal relationship is found between eczema and SLE,MS,AS,RA,BP,or vitiligo.
文摘目的:研究臭氧外用对特应性皮炎患者皮损处金黄色葡萄球菌定植的作用及其与病情的相关性。方法:招募6~65岁中重度特应性皮炎患者,选取两侧对称皮损作为靶部位,对照侧靶部位皮损采用温水洗浴联合基础油外涂,治疗侧靶部位皮损及全身余处用臭氧水洗浴并联合外用臭氧油,每天治疗2次,连续治疗7 d。定量检测靶部位皮损处金黄色葡萄球菌的变化,评估患者治疗前后靶部位皮损及全身病情变化,分析患者病情变化与皮损处金黄色葡萄球菌载量变化的相关性。结果:与治疗前及对照侧皮损比较,治疗第7天治疗侧靶部位皮损红斑和丘疹明显减少,瘙痒减轻;治疗侧靶部位皮损金黄色葡萄球菌载量在治疗第3,7天分别下降(75.55±21.81)%,(97.24±2.64)%;治疗第7天,治疗侧和对照侧金黄色葡萄球菌载量下降差异有统计学意义(P<0.01);治疗第7天,患者的特应性皮炎评分(scoring of atopic dermatitis,SCORAD)、睡眠及瘙痒评分较治疗前均显著降低(P<0.01);臭氧治疗皮损处金黄色葡萄球菌载量下降率与SCORAD评分的下降率呈正相关(r=0.916,P=0.001)。结论:臭氧外用能有效减少特应性皮炎患者皮损处金黄色葡萄球菌的载量并缓解中重度特应性皮炎患者病情。
