Prevalence of sensitivity to cockroach allergens and IgE cross- reactivity between cockroach and house dust mite allergens in Chinese patients with allergic rhinitis and asthma

Background Cockroaches are an important indoor allergen source causing allergic rhinitis and asthma. The aim of this study was to investigate the cockroach prevalence in mainland of China and the cross-reactivity of IgE between cockroach and house dust mite allergen in Chinese patients.Methods The cockroach sensitization pattern was based on a skin prick test （SPT） obtained from a national multicenter prevalence study, in which 6304 patients from 25 allergy centers across China participated. Factors, including different regions of China, age, gender and the correlations between the American and German cockroaches and house dust mite Der p were investigated. Eighteen out of 1236 clinical sera from south China were selected to perform the cross-inhibition assay between house dust mites and cockroaches.Results Totally 25.7% of patients were SPT positive to the American cockroach （Periplaneta Americana, Per a） and 18.7% SPT positive to the German cockroach （Blattella germanica, Bla g）. The prevalence of positive cockroach SPT was higher in southern than in northern China, higher in adults than in children, and higher in males than in females.Patients had relatively low levels of cockroach SPT reactions, mainly class 1 or 2. Of the SPT positive cockroach patients,88% were also SPT positive to house dust mite （Dermatophagoides pteronyssinus, Der p）. An IgE cross-inhibition study confirmed that Der P sensitization could cause false positive SPT reactions against cockroach.Conclusions A relatively high prevalence of cockroach sensitivity was found in mainland of China. However, a cross-inhibition study showed that only a small number of patients appear to have Bla g and/or Per a as primary sensitizing source. The importance of cockroaches as a risk factor for sensitization and triggers of allergic symptoms in mainland of China needs to be further investigated.     

深圳特区变应性鼻炎患者螨与蟑螂过敏原体外检测与分析

目的探讨深圳特区变应性鼻炎患者血清中螨和蟑螂过敏原特异性免疫球蛋白E(sIgE)的情况及其相互关系。方法采用酶联免疫吸附法(ELISA)对该院1998~2010年就诊于耳鼻咽喉科门诊的1 935例患者进行血清过敏原体外检测。结果在变应性鼻炎患者中,对尘螨过敏的具有极高的阳性率,蟑螂过敏也有较强的阳性率,血清中的sIgE值尘螨显著高于蟑螂(P<0.01)。结论尘螨和蟑螂均为引起变应性鼻炎最主要的过敏原之一,尤其是尘螨,预防和治疗研究工作的重点应当是这些过敏原。     

变态反应性疾病患者螨和蟑螂过敏原体外检测分析

目的探讨变态反应性疾病患者血清中螨和蟑螂过敏原特异性免疫球蛋白E(SIgE)的情况以及它们的相互关系分析。方法采用荧光酶联免疫吸附法,对我院2004年10月至2005年10月就诊于呼吸科和变态反应科门诊的199例患者,检测其血清中螨和蟑螂的SIgE。结果在变态反应性疾病的患者中,对于螨类过敏的,包括屋尘螨(d1)、粉尘螨(d2)和热带无爪螨(d201)均为儿童组比成年组的阳性率高,同时具有较高的强阳性率;对于热带无爪螨过敏的患者,一般都是在4级以下,极个别具有强阳性且均为儿童;对于蟑螂过敏的,所有患者均在4级以下;对于同时检测尘螨和蟑螂的患者,其血清中的SIgE值均为各螨类显著高于蟑螂的值(P<0.01)。结论尘螨和蟑螂均为变态反应性疾病的重要过敏原,尤其是尘螨;对于尘螨和蟑螂同时过敏的患者,尘螨的过敏程度均比蟑螂高。     

尘螨特异性免疫治疗前后哮喘患儿过敏原变化趋势

目的:探讨经标准化尘螨特异性免疫治疗(Specific immunotherapy,SIT)前后,哮喘患儿吸入性过敏原的变化趋势.方法:收集2005年6月～2007年3月140例在重庆医科大学附属儿童医院进行标准化尘螨特异性免疫治疗哮喘患儿的资料,对其治疗前后分别做尘螨、花粉、霉菌,蟑螂等13种常见的吸入性过敏原的皮肤点刺试验,并对其变化进行统计学分析.结果:皮肤点刺试验显示哮喘患儿中3种螨同时为阳性72.86%(103/140),螨合并其他过敏原阳性62.85%(88/140);93例患儿经治疗半年后,除猫毛和花粉外,3种螨虫、狗毛、蟑螂、霉菌的过敏原直径较治疗前有显著下降(尸l<0.000 1);78例患儿经治疗1年后,各过敏原的直径均有显著下降(蟑螂和花粉P<0.005,余P<0.000 1);尘螨合并其他过敏原阳性的患儿经半年或1年治疗后,其他过敏原全部转阴率均>70%;标准化尘螨特异性免疫治疗半年和1年后未发生新发过敏原的比例分别为84.95%(79/93)和87.18%(68/78).结论:标准化尘螨特异性免疫治疗不仅对尘螨而且对其他过敏原过敏的患儿均有显著疗效,其疗效与时间剂量呈相关性,提示通过单一脱敏治疗可以达到对其他过敏原的理想治疗;同时标准化特异性免疫治疗可能对新发过敏原有一定的阻止作用.     

深圳儿童尘螨流行病学调查及致敏性分析

目的了解深圳地区儿童尘螨感染情况及其致敏性,为采取有力的控制措施及制定居室内空气微生物标准提供依据.方法随机抽取了部分专科门诊及两所幼儿园进行卫生学调查研究及分析.采用尘螨浸液皮试法,按标准判断.采用特殊滤过装置的吸尘器采集积尘,所采集的样本按常规滤过标准制作及进行光学显微镜镜下检查.结果61.3%过敏性疾病儿童对尘螨浸液皮试呈阳性反应,明显高于对照组(P＜0.01);患儿组居室环境尘螨检出率高于对照组(P＜0.01).对照组经采取干预措施后,尘螨检出率明显下降.结论尘螨是深圳儿童过敏性疾病的主要致敏原;尘螨普遍存在于深圳居民家庭环境中,主要生存于床垫、空调、被褥、沙发、空调滤网等地方.     

居室粉螨抗原与螨过敏性哮喘相关性研究

目的:检测张家港市部分居室粉螨抗原及浓度,探讨其与螨过敏性哮喘发作的相关性。方法:收集过敏性哮喘患者及健康者居室床面、地面、家具、空调隔尘网及空气中的灰尘样本,用PCR法检测Der f1、Der f2、Der p1、Der p2阳性率,并用ELISA分别定量检测Der f1、Der p1及Der变应原含量。结果:共收集样本400份,过敏性哮喘患者与健康者居室Der f1、Der f2、Der p1、Der p2基因阳性率无显著性差异(P>0.05),但过敏性哮喘患者居室样本中这些变应原浓度>10μg/g者所占比例显著少于健康者(P<0.05)。对过敏性哮喘患者进行问卷调查结果显示,近期哮喘发作者Der f1、Der f2、Der p1、Der p2浓度>2μg/g所占比例明显高于近期哮喘未发作者(P<0.01)。结论:个体特异性是螨过敏性哮喘患者患病的重要因素,居室粉螨抗原浓度<2μg/g较安全。     

1491例变态反应性疾病患者过敏原检测结果分析

目的调查分析常州地区变态反应性疾病患者常见过敏原的分布情况,比较不同年龄阶段、不同季节的过敏原有无差异。方法选取本院2016年1月～2018年1月收治的1491例变态反应性皮肤病患者,采用16种过敏原对患者进行皮肤点刺试验,生理盐水作阴性对照,以组胺作阳性对照。结果 1491例变态反应性皮肤病患者常见过敏原阳性率从高到低依次为:粉尘螨89.67%、户尘螨86.38%、油菜花7.11%、葎草花粉6.37%蟑螂4.76%、猫毛3.76%。过敏原的季节性来分析:粉尘螨、户尘螨、夏季最高;春天比其他三个季节低;各种花粉在夏季最低,蟑螂夏季最高。粉尘螨、户尘螨、猫毛、狗上皮、狗毛季节性变化不是太明显。粉尘螨、户尘螨、猫毛、牛奶、鸡蛋黄未成年组高于成年组(P0.05)。葎草花粉、油菜花粉、蟑螂成年组高于未成年组(P0.05)。过敏原在同年龄阶段的男女中间的差异不明显(P0.05)。结论在常州地区,最主要的过敏原为粉尘螨、户尘螨、油菜花,过敏原在不同季节、不同年龄阶段分布不同,为本地区常见变态反应性疾病的防治提供科学依据,皮肤点刺试验用于明确变态反应性疾病致敏原因安全有效。     

Allergen micro-array detection of specific IgE-reactivity in Chinese allergy patients

Background  Allergen micro-arrays are powerful tools for screening of serum IgE-reactivity. In this study allergen micro-arrays were used to identify dominating IgE-binding allergens and cross-reactivity patterns among selected Chinese allergy patients.

Methods  The study was conducted using patient sera from the cities of Guangzhou, Nanjing, Chengdu and Shenyang. In total 100 sera with Dermatophagoides pteronyssinus (Der p) specific IgE-levels higher than 50 kU/L were selected for testing against 103 individual allergens.

Results  Among 100 selected patients, 95% showed IgE-reactivity towards house-dust mite allergens Dermatophagoides farinae (Der f) 1, Der f 2 and Der p 2 and 94% were IgE positive against Der p 1, and 60% of sera contained IgE reacting against allergen Euroglyphus maynei (Eur m) 2. IgE against cat allergen, Felisdomesticus (Fel d) 1, was seen in 20%. Only 2% showed specific IgE-reactivity to Der p 10, a panallergen belonging to the tropomyosin family. Serum IgE-reactivity towards other allergens was in general low. IgE-reactivity against pollen allergens showed geographic differences.

Conclusions  This study clearly confirms that group 1 and group 2 are major allergens of house dust mites. These selected house-dust mite allergy patients are close to being mono-sensitized. Der p 10 is not an important allergen for cross-reactivity. Specific IgE-sensitization towards pollen allergens is low in southern China compared to other regions. The prevalence of food and stinging insect allergens known to give rise to IgE-mediated cross-reactivity is 2% or less.

     

小儿变应性鼻炎粉尘螨检测与脱敏治疗

目的观察与探讨小儿变应性鼻炎粉尘螨检测与脱敏治疗。方法本文选择了112例变应性鼻炎患儿,依照变应原的种类将其分成观察组70例与对照组42例。观察组仅对粉尘螨或是屋尘螨有过敏反应,对照组对尘螨及其他变应原均有过敏反应：所有患儿均通过标准化粉尘螨滴剂这种方式进行1年的舌下特异性免疫方法治疗（SLIT）并做好粉尘螨皮试检测。观察治疗前后两组患儿的症状评分与药物评分以及两组的治疗效果差异。结果所有患儿均完成治疗,治疗前后两组患儿在症状评分方面均得到了显著改善,在药物评分方面,两组患儿在治疗前后也得到了显著改善,两组比较差异有统计学意义（P〈0．05）,组间比较差异无统计学意义（P〉0．05）。结论将标准化粉尘螨滴剂放置舌下进行含服能够用于对尘螨合并有多种变应原合并症的变应性鼻炎的治疗,效果良好。     

五岁以下哮喘儿童变应原的检测及临床意义

目的了解年幼儿哮喘常见变应原,为有效避免变应原及早期干预治疗提供依据。方法选择在海南省人民医院儿童哮喘防治中心治疗的5岁以下哮喘儿童468例,使用丹麦爱尔开-阿贝优公司的吸入组点刺试剂进行皮肤点刺试验,对其中251例哮喘患儿定量检测血清中变应原特异性IgE抗体水平。结果 468例哮喘患儿体内过敏原（皮肤点刺试验）阳性率为66%,尘螨皮试阳性率最高且强阳性率（＋＋＋—＋＋＋＋）也最高,其中屋尘螨及粉尘螨分别为87.4%及86.3%,热带螨为66.3%,德国小蠊及美洲大蠊分别为26.7%及19.9%。动物皮毛中,以狗毛为主（20.1%）,猫毛次之（12.4%）。251例体外变应原检测阳性率为57.8%,其中仍以屋尘螨阳性率（63.25%）最高,粉尘螨（58.6%）次之,狗上皮为15.9%。食物组中蛋清为9.3%、花生为4.3%、苹果为3.1%,分居前3。结论哮喘儿童皮肤点刺试验有较高的变应原检出率,屋尘螨、粉尘螨、热带螨是海南儿童哮喘最常见的吸入变应原,蟑螂、狗毛、猫毛等变应原也不容忽视。食入性过敏原检出率低,其对儿童哮喘的影响远低于吸入变应原。     

Indoor mite allergen levels, specific IgE prevalence and IgE cross-inhibition pattern among asthmatic children in Haikou, southern China

Background  Haikou locates in tropical island with unique mite propagation. The aim of this stuy is to determine mite allergens levels in Haikou, and to investigate the prevalence of mite specific IgE-sensitization and IgE cross-reactivity between house dust mites. 

Methods  Allergen and antigen concentrations against six mite species were tested by enzyme-linked immunosorbent assay (ELISA). Specific IgE concentrations and cross-inhibitions were measured with ADVIA Centaur^®.

Results  Allergen or antigen Dermatophagoides pteronyssinus (Der p 1), Blomia tropicalis (Blo t ) and Tyrophagus putrescentia (Tyr p) were detected in dust samples. Dermatophagoides farinae (Der f 1), Lepidoglyphus destructor (Lep d 2), and Acarus siro (Aca s ) were found in very few samples. Specific IgE tests showed high prevalence of sensitizations against all tested mites with high IgE levels to Der p, Der f, and Blo t. Storage mites, Blo t, Tyr p, Lep d, and Aca s, could inhibit Der p from 0 to 50%. Storage mites could inhibit Der f between 30% and 100%. Der p IgE could be inhibited by Der f with up to 90%, and vice versa. Der p could inhibit Blo t from 40% to 80%. Blo t was able to fully inhibit IgE binding to Lep d, Tyr p, and Aca s compared to partial inhibition by Der p.

Conclusions  Der p is the dominating mite and has the highest specific IgE prevalence among asthmatic children. Blo t represents an important source of storage mite sensitization and some patients may be independently sensitized to both Der p and Blo t. High prevalence of sensitization to Der f may be due to IgE-mediated cross-reactivity with Der p and Blo t.

     

郑州地区成人自报过敏性鼻炎患者吸入过敏原分析

  目的  了解郑州地区成人自报过敏性鼻炎(allergic rhinitis, AR)患者吸入过敏原致敏谱,分析不同年龄、性别及年份间阳性致敏原的差异,为AR的临床诊治提供参考。  方法  采用17种吸入过敏原试剂对2019年1月—2021年12月就诊于河南省人民医院过敏反应科门诊且自报为AR的成人患者2 305例进行皮肤点刺试验(skin prick test, SPT),比较不同性别、年龄、年份致敏原分布情况,并对阳性率进行分析。  结果  2 305例AR患者SPT阳性率为77.09%,常合并多种过敏原致敏,对4种及以上过敏原阳性者1 137例(49.33%);过敏原阳性率前5位依次为粉尘螨(42.78%)、户尘螨(38.61%)、梧桐花粉(35.27%)、蒿属花粉(34.27%)、葎草花粉(31.63%);18~30岁年龄组过敏原SPT阳性检出率达峰值(91.84%),阳性率随年龄增长而下降;不同性别间粉尘螨、户尘螨、油菜花、葎草花粉SPT阳性率比较差异有统计学意义(均P＜0.05);2019—2021年室内吸入过敏原粉尘螨、户尘螨阳性率呈逐年升高趋势,季节性吸入过敏原梧桐花粉、蒿属花粉、葎草花粉阳性率呈逐年下降趋势。  结论  AR患者常合并4种及以上吸入过敏原致敏;18~30岁SPT检出率达峰值;粉尘螨、户尘螨、梧桐花粉、蒿属花粉、葎草花粉是郑州地区成人自报AR患者最常见的致敏原。      

尘螨变应原疫苗皮下注射治疗过敏性哮喘

目的:评价尘螨变应原疫苗皮下注射治疗过敏性哮喘的疗效。方法:对94例室尘螨和(或)粉尘螨过敏性哮喘患者皮下注射阿罗格(NHD)尘螨特制疫苗作脱敏治疗,比较脱敏前后患者第一秒钟用力呼气量(FEV1)、最大呼气流量(PEF)、血嗜酸性粒细胞、痰液嗜酸性粒细胞、血清总IgE值。结果:经尘螨变应原疫苗皮下注射后,FEV1、PEF’比治疗前增加(P<0.05),而血液、痰液嗜酸性粒细胞及血浆总IgE较治疗前下降(P<0.05)。结论:尘螨变应原疫苗皮下注射治疗过敏性哮喘显著改善哮喘患者的肺功能。     

海口市儿童哮喘变应原流行病学调查研究

目的 了解海口市儿童哮喘常见变应原状况.方法 2012年9~12月本研究采取整群抽样的流行病学方法调查海口市0~14岁儿童10 241名,确诊哮喘患儿324例,对所有哮喘患儿进行过敏史问卷调查及皮肤点刺试验和血清过敏原特异性IgE (SIgE)抗体检测.结果 324例哮喘患儿中224例(69.1%)过敏史阳性,其中湿疹91例(28.1%),食物过敏64例(19.8%),药物过敏28例(8.6%),香烟过敏18例(5.6%),装修气味过敏19例(5.9%),宠物过敏13例(4.0%),油烟过敏11例(3.4%),花粉过敏9例(2.8%).皮肤点刺阳性率为83.0%(269例),其中屋尘螨及粉尘螨阳性率分别为90.1%(292例)及89.2%(289例),热带螨为85.5%(277例),蟑螂19.6%(64例),霉菌3.4%(11例),花粉3.4%(11例),猫毛11.7%(38例),狗毛25.3%(82例).吸入性过敏原IgE阳性率为72.2%(235例),以尘螨为最高(69.8%,226例);食入性过敏原IgE阳性率为28.7%(93例),牛奶占25.3%(82例),鸡蛋白占9.9%(32例),虾蟹占22.8%(74例),热带水果占9.0%(24例),鱼占8.3%(27例).不同年龄组哮喘患儿吸入性过敏原特异性IgE阳性率比较显示,3~7岁组屋尘螨、蟑螂阳性率高于0~3岁组(P<0.05),7~14岁组屋尘螨、蟑螂、狗毛上皮、猫毛上皮阳性率高于0~3岁组(P<0.05).结论 海口市儿童哮喘常见变应原以屋尘螨、粉尘螨和热带螨为主,狗毛、蟑螂及猫毛比例也较高.食入性过敏原以牛奶、鸡蛋白多见,且虾蟹、热带水果致敏对本地区儿童哮喘的影响也不容忽视.     

尘螨1类变应原Derf1和Derp1生物信息学分析

目的:分析尘螨1类变应原的理化特性。方法:Gen Bank检索尘螨1类变应原Der f 1和Der p 1的氨基酸序列,利用生物信息学软件预测分析这两个氨基酸序列的一级结构、疏水性、跨膜区、二级结构及空间结构,并对其可能的功能位点进行预测。结果:尘螨1类变应原Der f 1和Der p 1分别编码321和320个氨基酸,分子量分别为36.4和36.1 ku,理论等电点(p1)分别为5.66和5.65,两蛋白均为亲水性蛋白且可能均无跨膜区,Der f 1的二级结构以不规则卷曲为主(43.93%),而Der p1的二级结构以α螺旋为主(43.75%)。两变应原均由蛋白酶抑制子I 29和木瓜蛋白酶C-端2个结构域组成,且半胱氨酸活性位点、组氨酸活性位点和天冬酰胺活性位点的位置相似。结论:Der f 1和Der p 1的这些特性有助于为螨性过敏性疾病的变应原特异性免疫治疗提供理论支持。     

海口市地区过敏性疾病皮肤点刺变应原实验分析

目的:探讨海口市过敏性疾病变应原特点,为过敏性疾病防治提供科学依据。方法:吸入组变应原有:粉尘螨、组胺、户尘螨、蟑螂、狗毛/狗上皮、猫毛/猫上皮、艾蒿花粉、玉米花粉、侓草花粉、酵母菌、青霉菌;食入组变应原有:鸡蛋清、鸡蛋黄、大豆、牛肉、牛奶、扇贝、带鱼、海蟹、海虾、花生、苹果、芒果、香蕉等共23种。采用我武生物科技有限公司开发的变应原试液,点刺部位选择双手前臂屈侧皮肤,采用生理盐水点刺作阴性对照,以10g/L二盐酸组胺皮肤点刺作阳性对照。结果:98例接受变应原检测呈阳性反应的83例,阳性率为84.7%。吸入组荨麻疹、湿疹两种疾病变应原检出率前3位分别:粉尘螨37(52.1%)、34(47.9%),户尘螨37(53.6%)、32(46.4%),蟑螂24(38.7%)、38(61.3%);食入组荨麻症、湿疹两种疾病变应原检出率前3位分别:牛肉48(70.6%)、20(29.4%),海蟹37(67.3%)、18(32.7%),海虾57(75.0%)、19(25.0%)。结论:海口市过敏性疾病对多种变应原有阳性反应,以粉尘螨、户尘螨、蟑螂、海蟹、海虾、牛肉、等多见,阳性反应率逐年增多趋势,避免或清除变应原的接触,对过敏性疾病的防治有重要意义。     

Cloning, sequence analysis and expression in E. coli of the group 3 allergen of Dermatophagoides farinae

Background The dust mites, which are mostly represented by Dermatophagoides spp. （Acari： Pyroglyphidae）, are the major sources of indoor allergens. Identification and characterization of these mite allergen molecules are an important step in the development of new effective diagnostic procedures and possible therapeutic strategies for allergic disorders associated with dust mites. Methods Total RNA was extracted from Dermatophagoides farinae. The gene coding for Der f 3 was amplified by RT-PCR with the primers designed based on previous sequence published in GenBank. The target gene was cloned intermediately into pMD19-T plasmid and finally into plasmid pET28a （＋）, expressed in E. coil BL21 at the aid of the inducer isopropyI-D-thiogalactopyranoside （IPTG）. The physicochemical properties, spatial structure of the allergen were analyzed with bioinformatics software. Results The cDNA coding for group 3 allergen of Dermatophagoides farinae from China was cloned and expressed successfully. Sequencing analysis showed that there were nineteen mismatched nucleotides in five Der f3 cDNA clones in comparison with the reference （GenBank Accession No. AY283291）, which resulted in deduced amino acid sequence incompatibility in eleven residues. Bioinformatics analysis revealed that the Der f 3 pro-protein was an extracellular hydrophobic protein, consisting of 259 amino acids with a 16 amino acid signal peptide. The protein was deduced to have three chymotrypsin active sites （53-68 AA, 108-122 AA and 205-217 AA）, one N-glycosylation site, one cAMP- and cGMP-dependent protein kinase phosphorylation site, four protein kinase C phosphorylation sites, two casein kinase II phosphorylation sites, and five N-myristoylation sites. Conclusions Der f3 is an extracellular hydrophobic protein which possesses multiple activation and phosphorylation sites. Polymorphism may exist in the Der f3 gene but this needs to be further confirmed in the future.     

尘螨Ⅱ类改组变应原对哮喘小鼠免疫治疗的效果

目的 探讨以改组尘螨Ⅱ类变应原基因Der f2和Der p2后表达的蛋白为变应原,对小鼠哮喘模型的特异性免疫治疗效果。方法 随机将160只清洁级BALB/c小鼠分为PBS组（阴性对照组）,Der f2和Der p2免疫治疗组（阳性对照组）,哮喘组,改组变应原免疫治疗M01、M03、M08、M10蛋白治疗组。用尘螨提取液于0、7、14d腹腔注射致敏激发BALB/c小鼠,第21天雾化吸入激发,连续7d,其中各免疫治疗组于第25～27天雾化前30min分别用Der f2、Der p2和改组变应原进行特异性免疫治疗,PBS组则用PBS进行腹腔注射和雾化吸入。最后1次雾化24h后,引颈处死。分别观察肺组织病理变化、支气管肺泡灌洗液（BLAF）白细胞计数,酶联免疫吸附试验（ELISA）测定BLAF和脾细胞培养上清液细胞因子IL-4、IL-17和IFN γ的含量及血清中特异性IgG1、IgE抗体水平变化。结果 与哮喘组比较,改组变应原免疫治疗组和阳性治疗组肺部炎症显著减轻, BALF中的总细胞数及嗜酸性粒细胞数,血清中抗原特异性IgG1、IgE抗体均显著降低;免疫治疗组（包括阳性对照）的BALF和脾细胞培养上清液中的细胞因子IL-4、IL-17均明显降低,IFN-γ含量显著升高。结论 通过基因改组获得的尘螨Ⅱ类变应原改组疫苗免疫治疗小鼠哮喘,可有效降低尘螨引起的小鼠肺部炎症。     

尘螨与变应性疾病的研究进展

尘螨是最常见的室内变应原之一,随着住房缺少通气,湿度增加导致更多的住所遭受螨患。世界范围内的多方面研究已经证实,尘螨暴露与哮喘、过敏性鼻炎和过敏性皮炎等变应性疾病之间有着密切的关联。本文从尘螨变应原,与变应性疾病的关系以及防治的研究现况予以综述。