Facial dermatosis associated with Demodex:a case-control study

作     者：Ya-e ZHAO Yan PENG Xiang-lan WANG Li-ping WU Mei WANG Hu-ling YAN Sheng-xiang XIAO 

作者机构：Department of Immunology and Pathogen Biology Xi ＇an Jiaotong University College of Medicine Xi ＇an 710061 China Xi ＇an Center for Disease Control and Prevention Xi ＇an 710054 China Department of Dermatology the Second Affiliated Hospital Xi ＇an Jiaotong University College of Medicine Xi ＇an 710004 China Department of Clinical Laboratory Chengdu First People＇s Hospital Chengdu 610041 China 

出 版 物：《Journal of Zhejiang University-Science B(Biomedicine & Biotechnology)》 (浙江大学学报（英文版）B辑（生物医学与生物技术）)

年 卷 期：2011年第12卷第12期

页      面：1008-1015页

核心收录：

学科分类：0710[理学-生物学] 1007[医学-药学(可授医学、理学学位)] 1004[医学-公共卫生与预防医学(可授医学、理学学位)] 1002[医学-临床医学] 1001[医学-基础医学(可授医学、理学学位)] 0905[农学-畜牧学] 0906[农学-兽医学] 100103[医学-病原生物学] 10[医学] 100206[医学-皮肤病与性病学] 

基　　金：Project supported by the National Natural Science Foundation of China (No. 30872199) the Natural Science Foundation of Shaanxi Province (No. 2006C247),China 

主　　题：面部皮肤病 Demodex 群袭 协会 盒子控制学习 变老 

摘      要：Demodex has been considered to be related with multiple skin disorders,but controversy persists.In this case-control study,a survey was conducted with 860 dermatosis patients aged 12 to 84 years in Xi an,China to identify the association between facial dermatosis and Demodex.Amongst the patients,539 suffered from facial dermatosis and 321 suffered from non-facial dermatosis.Demodex mites were sampled and examined using the skin pressurization method.Multivariate regression analysis was applied to analyze the association between facial dermatosis and Demodex infestation,and to identify the risk factors of Demodex infestation.The results showed that total detection rate of Demodex was 43.0%.Patients aged above 30 years had higher odds of Demodex infestation than those under 30 years.Compared to patients with neutral skin,patients with mixed,oily,or dry skin were more likely to be infested with Demodex(odds ratios(ORs) were 2.5,2.4,and 1.6,respectively).Moreover,Demodex infestation was found to be statistically associated with rosacea(OR=8.1),steroid-induced dermatitis(OR=2.7),seborrheic dermatitis(OR=2.2),and primary irritation dermatitis(OR=2.1).In particular,ORs calculated from the severe infestation(≥5 mites/cm2) rate were significantly higher than those of the total rate.Therefore,we concluded that Demodex is associated with rosacea,steroid-induced dermatitis,seborrheic dermatitis,and primary irritation dermatitis.The rate of severe infestation is found to be more correlated with various dermatosis than the total infestation rate.The risk factors of Demodex infestation,age,and skin types were identified.Our study also suggested that good hygiene practice might reduce the chances of demodicosis and Demodex infestation.