HLA-DRB等位基因与苏皖籍汉族人群甲真菌病的相关性初步研究

【摘要】 目的 探讨HLA-DRB等位基因与苏皖籍汉族人群甲真菌病的相关性。 方法 采用聚合酶链反应-序列特异性引物方法对50例红色毛癣菌甲真菌病患者、14例须毛癣菌甲真菌病患者和52例健康对照进行HLA-DRB等位基因分型。应用SPSS for windows 13.0软件包,采用χ2检验比较甲真菌病患者组与对照组的HLA-DRB等位基因频率。 结果 红色毛癣菌甲真菌病患者HLA-DRB各等位基因频率与健康对照组相比差异均无统计学意义。须毛癣菌甲真菌病患者HLA-DRB1*14等位基因频率为17.86%,较健康对照组（3.85%）升高（P < 0.01,OR = 5.435,95% CI：1.353 ~ 21.835）,HLA-DRB1*15频率为0,较健康对照组（16.3%）下降（P < 0.05,OR = 0.837,95% CI：0.768 ~ 0.911）,差异均有统计学意义。 结论 HLA-DRB等位基因可能与苏皖汉族人群甲红色毛癣菌感染无明显相关;HLA-DRB1*14可能是甲须毛癣菌感染的易感基因,而HLA-DRB1*15可能是甲须毛癣菌感染的拮抗基因;不同菌种感染所致的甲真菌病的遗传背景可能存在异质性。     

中国北方汉族泛发型白癜风与HLA-DRB1等位基因的相关

目的:探讨HLA-DRB1等位基因与中国北方汉族泛发型白癜风的相关性。方法:采用聚合酶链反应-序列特异引物(PCR-SSP)技术检测34例北方汉族泛发型白癜风患者的HLA-DRB1等位基因。结果:与262例正常对照组相比较,泛发型白癜风患者HLA-DRB1*0701/02、DRB1*1201/02基因频率显著增高(Pc<0.0001),HLA-DRB1*0901、DRB1*11基因频率降低(但经校正后Pc>0.05);有明确家族史的患者HLA-DRB1*1201/02基因频率显著增高(Pc<0.0001);无家族史者HLA-DRB1*0701/02基因频率显著升高(Pc<0.0001),DRB1*1201/02基因频率显著增高(经校正后Pc>0.05),DRB1*0901基因频率降低(经校正后Pc>0.05)。结论:中国北方汉族人群,HLA-DRB1*0701/02、DRB1*1201/02等位基因可能与泛发型白癜风的发病有关,而DRB1*0901、DRB1*11等位基因可能是防止其发病的“保护因子”,为进一步揭示泛发型白癜风的易感基因及免疫遗传发病机制提供线索。     

广西地区壮、汉族系统性红斑狼疮与HLA-DRB1等位基因相关性研究

目的：探讨广西地区壮、汉族系统性红斑狼疮(SLE)与HLA-DRB1等位基因的相关性。方法：用聚合酶链式反应一序列特异性引物(PCR-SSP)方法，分别对52例SLE壮族患者和70名壮族健康人，45例SLE汉族患者和60名汉族健康人的HLA-DRB1等位基因进行研究。结果：壮族SLE患者HLA-DRB1^*1401及DRB1^*16两个等位基因的频率低于正常对照组(RR=0．2813，χ^2=5．0024，P=0．0252及RR=0．3889，χ^2=3．9527，P=0．0466)，患者组和对照组均未检出HLA-DRB1^*08、DRB1^*11和DRB1^*13等位基因；汉族SLE患者HLA-DRB1^*15等位基因的频率高于正常对照组(RR=2．5333，χ^2=8．4006，P=0．00371，患者组未检出HLA-DRB1^*11、DRB1^*13等位基因，对照组亦未检出HLA-DRB1^*13等位基因。结论：提示HLA-DRB1^*1401及DRB1^*16等位基因可能是广西地区壮族人SLE的保护基因，未发现易感基因。提示HLA-DRB1^*15等位基因可能是广西地区汉族人SLE的易感基因。     

HLA-DRB1基因与慢性荨麻疹的相关性

目的探讨慢性荨麻疹与HLA-DRB1等位基因的相关性。方法采用聚合酶链反应-序列特异性引物方法,检测慢性荨麻疹(CU)患者组144例(汉族64例,壮族80例)和正常对照组199例(汉族95例,壮族104例)的HLA-DRB1等位基因频率,使用SPSS13.0统计软件分析。结果在检测的16个位点中,DRB1*12和*1401等位基因频率在汉族患者组与汉族对照组间差异有统计学意义(Pc<0.001,RR=6.715;Pc<0.001,RR=28.776);DRB1*1401等位基因频率在壮族患者组与壮族对照组间差异有统计学意义(Pc=0.002,RR=4.526)。DRB1*12等位基因频率在汉族患者组与壮族患者组间比较,差异有统计学意义(Pc<0.001)。结论 DRB1*12和*1401等位基因可能与汉族CU有相关性;DRB1*1401等位基因可能与壮族CU有相关性;DRB1基因多态性在汉、壮族间分布有差异。     

梅毒患者与HLA-DRB1等位基因相关性研究

目的:检测山东汉族梅毒患者与HLA-DRB1等位基因的相关性.方法: 应用聚合酶链反应-序列特异性引物技术(PCR-SSP)对196例山东汉族梅毒患者与500例山东汉族正常对照的HLA-DRB1等位基因表现频率进行检测.结果: 患者组DRB1*14等位基因的出现频率高于对照组(P<0.05);DRB1*16等位基因的出现频率与对照组无显著差异(P>0.05).结论: HLA-DRB1*14等位基因可能是梅毒的易感基因.     

HLA—DRB1等位基因多态性与白塞病的相关性研究

目的：分析HLA—DRB1等位基因多态性与白塞病（BD）的相关性。方法：应用LABTypeTMSSO法对43例BD患者及120例正常对照组的HLA—DRB1等位基因进行检测。结果：与正常对照组相比,BD患者HLA—DRB1＊14基因频率明显增高（P〈0．05）,而HIA—DRB1＊15基因频率明显降低（P〈0．05）。HLA-DRB1等位基因与BD的临床表现具有一定的相关性。结论：HLA—DRB1＊14可能是BD的易感基因,HLA—DRB1＊15可能是BD的保护性基因。     

梅毒患者与HLA—DRB1等位基因相关性研究

目的：检测山东汉族梅毒患者与HLA-DRB1等位基因的相关性。方法：应用聚合酶链反应一序列特异性引物技术（PCR—ssp）对196例山东汉族梅毒患者与500例山东汉族正常对照的HLA-DRB1等位基因表现频率进行检测。结果：患者组DRB1＊14等位基因的出现频率高于对照组（P〈0．05）;DRB1＊16等位基因的出现频率与对照组无显著差异（P〉0．05）。结论：HLA—DRB1＊14等位基因可能是梅毒的易感基因。     

广西地区汉族婴幼儿脉管性疾病与HLA-DRB1等位基因相关性研究

【摘要】 目的 探讨广西地区汉族婴幼儿脉管性疾病与HLA-DRB1等位基因遗传易感性的关系。 方法 广西地区汉族婴幼儿脉管性疾病145例（血管瘤组99例、脉管畸形组46例）,健康对照组105例。采用聚合酶链反应-序列特异性引物（PCR-SSP）方法对3组HLA-DRB1等位基因进行分型,使用SPSS16.0统计软件分析DRB1基因在3个组中的分布。 结果 DRB1*0901、*1401、*16等位基因在血管瘤组、脉管畸形组、对照组的分布差异均有统计学意义（χ2 = 13.05,P < 0.01;χ2 = 12.79,P < 0.01;χ2 = 10.36,P < 0.01）。进一步在各组间进行两两比较,DRB1*0901等位基因频率在血管瘤组与脉管畸形组间（RR = 4.84,P < 0.01）及血管瘤组与对照组组间（RR = 3.21,P < 0.01）差异均有统计学意义。DRB1*16等位基因频率在血管瘤组与对照组组间（RR = 2.25,P < 0.01）及脉管畸形组与对照组间（RR = 2.60,P < 0.01）差异均有统计学意义。血管瘤组中DRB1*1401等位基因频率显著性低于对照组（RR = 0.30,P < 0.01）。 结论 DRB1*0901等位基因可能为广西地区汉族婴幼儿血管瘤的易感基因,而DRB1*1401等位基因可能是其拮抗基因。HLA-DRB1*16等位基因可能为广西地区汉族脉管性疾病的易感基因。     

甲真菌病患者多部位红色毛癣菌分离株的DNA分型

目的探讨甲真菌病患者多部位红色毛癣菌感染不同部位分离菌株基因型的差异。方法采用PCR扩增红色毛癣菌rDNA非转录间隔区(NTS)中Trs-1片段,检测基因多态性并比较。结果30株受试菌株按照PCR指纹图共分为3型,基因型分布与感染部位无相关。10例受试患者中,5例不同感染部位分离出的菌株基因型存在差异。结论甲真菌病患者多部位红色毛癣菌感染可能为多菌株引起,部分患者可能存在多菌株的混合感染。     

北方汉族寻常型银屑病与HLA-DRB1及DQB1等位基因相关性研究

目的:探讨HLA-DRB1及DQB1等位基因与北方汉族寻常型银屑病相关性。方法:利用序列特异性引物-聚合酶链反应(PCR-SSP)分型技术,对63例寻常型银屑病患者和102例健康人的HIA-DRB!及DQB1等位基因进行检测。结果:(1)HLA-DRB1*070x、DRB1*1001及DOB`*020x等位基因与北方汉族寻常型银屑病呈正相关(P分别为0.001,0.005,0.009);HLA-DRB1*120x等位基因与北方汉族寻常型银屑病呈负相关(P=0.007)。(2)HLA-DRB1*070x及DQB1*020x等位基因仅与家族史阳性的早发型(Ⅰ型)银屑病发病相关(P<0.001)。(3)HLA-DRBq*1001等位基因频率在Ⅰ型及无家族史的晚发型(Ⅱ型)银屑病均显著性增高(P<0.05)。结论:(1)HLA-DRB1*070x、DRB1*1001及DQB1*020x等位基因可能是北方汉族寻常型银屑病的易感基因或与易感基因相连锁;HLA-DRB1*120x等位基因可能是阻止北方汉族人发生银屑病的保护基因。(2)Ⅰ型及Ⅱ型银屑病的遗传背景存在差异。     

Comparisons of clinical features of HLA‐DRB1*07 positive and negative vitiligo patients in Chinese Han population

Background Human leucocyte antigen (HLA)‐II alleles have been found to be associated with vitiligo in different populations, and several studies also suggested that HLA class II alleles/haplotypes were associated with a different type vitiligo. Of HLA class II alleles, DRB1*07 has consistently shown a positive association with vitiligo in Chinese Han population. Objective To further explore the relationship between DRB1*07 and vitiligo and to evaluate the DRB1*07 effect on the clinical features of vitiligo in Chinese Han population. Methods This study investigated DRB1*07 allele distribution in 1178 unrelated Chinese vitiligo patients and 1743 healthy controls using polymerase chain reaction/sequence specific primer method and observed clinical differences between DRB1*07 positive and DRB1*07 negative patients. Results The analysis of the 1178 cases and 1743 controls revealed a highly association between DRB1*07 allele and vitiligo [odds ratio (OR) = 1.97, P = 2.13 × 10^?17]. DRB1*07 positive patients had early disease onset (OR = 1.49, P = 0.001), higher frequency of family history (OR = 1.44, P = 0.006) compared with DRB1*07 negative patients. Conclusions The DRB1*07 showed significant association with vitiligo in the study population. This study confirmed that DRB1*07 positive patients had some obvious clinical differences from DRB1*07 negative patients in the Chinese Han population.     

Genotyping of HLA-I and HLA-II alleles in Chinese patients with paraneoplastic pemphigus

BACKGROUND: Class I and class II HLA genes are thought to play a role in the immunopathogenesis of bullous dermatoses such as pemphigus vulgaris and pemphigus foliaceus, but we know little about the genetic background of paraneoplastic pemphigus (PNP) in Chinese patients. OBJECTIVES: To identify class I and class II HLA alleles by genotyping in Chinese patients with PNP, and to find out the possible association between HLA alleles and disease susceptibility. METHODS: Nineteen Chinese patients with PNP were enrolled in this study. HLA-A, B, C, DRB1 and DQB1 alleles were typed by polymerase chain reaction and a colour-coded sequence-specific oligonucleotide probes method. RESULTS: The frequencies of HLA-B*4002/B*4004, B*51, B*52, Cw*14, DQB1*0301, DRB1*08 and DRB1*11 were relatively prevalent in Chinese Han patients with PNP in comparison with normal controls. After correction for multiple comparisons, Cw*14 remained statistically significant, and the other alleles were unremarkable in these patients. CONCLUSIONS: The genetic background predisposing to PNP may be different in patients from various races and areas. HLA-Cw*14 may be the predisposing allele to PNP in Chinese patients, which is different from the predisposing allele in French patients with PNP and the alleles predisposing to pemphigus vulgaris and pemphigus foliaceus.     

HLA-DRB1等位基因与四川汉族人寻常型天疱疮的相关性研究

目的 探讨HLA-DRB1等位基因与四川汉族人寻常型天疱疮的相关性.方法 采用聚合酶连反应-序列特异性引物(PCR-SSP)对19例四川汉族寻常型天疱疮患者和25例健康对照组进行低分辨和高分辨HLA-DRB1等位基因分型,计算各等位基因频率.采用x2检验比较两组等位基因频率.结果 在寻常型天疱疮患者和健康对照者中共检出9种低分辨DRB1等位基因和19种高分辨DRB1等位基因.与健康对照组相比,寻常型天疱疮患者DRB1*14等位基因频率(39.47％,15/38)及DRB 1*1405等位基因频率(15.79％,6/38)均显著高于健康对照组[8.00％(4/50),2.00％(1/50)],差异均有统计学意义(x2=17.43、4.25,均P＜0.05).结论 DRB1*14可能是四川汉族寻常型天疱疮患者的常见易感基因,其中DRB1*1405与寻常型天疱疮最具有相关性.     

广西壮族系统性红斑狼疮与HLA-DRB1等位基因相关性研究

目的 探讨广西壮族系统性红斑狼疮(SLE)与HLA-DRB1基因的相关性。方法 用聚合酶链反应-序列特异性引物(PCR-SSP)方法,对52例SLE壮族患者和70例壮族健康人的HLA-DRB1基因进行研究。结果 SLE患者HLA-DRB1*1401及DRB1*16两个等位基因的频率低于正常对照组(RR=0.28,χ²=5.00,P=0.02及RR=0.39,χ²=3.95,P=0.05),患者组和对照组均未检出HLA-DRB1*08、DRB1*11和DRB1*13等位基因。结论 提示HLA-DRB1*1401及DRB1*16等位基因可能是广西壮族人SLE的保护基因,未发现易感基因。     

Multiple basal cell carcinomas: no association with HLA-DRB, HLA-DQAI or HLA-DQBI in Swedish patients

Summary Many diseases with autoimmune features are associated with alleles of the human leucocyte antigen (HLA). However, few if any malignant disorders have reproducibly been shown to be HLA-associated. In three independent studies, using serological tissue typing techniques, an increase of the HLA class II specificity DR1 has been found in patients with multiple basal cell carcinomas. These observations prompted us to determine the frequencies of DRB1, DQA1, and DQB1 alleles by high-resolution genomic tissue-typing methods, including subdivision of the serological DR 1 specificity in the four sequence-defined alleles, DRB1*0101 to DRB1*0104, in 50 unrelated Swedish patients with a history of four or more basal cell carcinomas and 250 healthy controls. The frequency of DR1 was the same in patients and controls (18%). All DR1-positive patients and controls carried the DQA1* 0101 and DQBI*0501 alleles. Six of the nine DR1-positive patients were DRB1*0101-positive. one DRB1*0102 and two carried the DRB1*0103 allele. This distribution of DRB1*01 alleles did not differ from the one found in the controls. We conclude that genetic factors associated with the HLA class II region do not contribute significantly to the aetiology of multiple basal cell carcinomas.     

SLE患者抗U1 RNP抗体与HLA-Ⅱ类基因的相关性分析

目的 探讨云南汉族系统性红斑狼疮（SLE）患者抗U1RNP抗体与HLA－DRB1、DQA1、DQB1等3位基因及单体型的相关性。方法 采用多聚酶链反应－序列特异性引物（PCR－SSP）技术对63例云南汉族SLE患者进行DRB1、DQA1、DQB1基因分型。结果 抗U1RNP抗体阳性的SLE病人中DQA1＊0101及DR15－DQA1＊0102－DQB1＊0601单体型频率亦显著增高（P＝0．040，P＝0．000）。结论 云南汉族SLE抗U1RNP抗体的产生与DQA1＊0101等位基因及DR15－DQA1＊0102－DQB1＊0601单体型相关。     

汉族红斑型天疱疮与HLA-Ⅱ类基因的相关性研究

目的 探讨HLA-DR、DQB1位点基因在红斑型天疱疮（PE）易感性中的作用。方法 用聚合酶链反应-序列特异性引物（PCR-SSP）方法，对37例红斑型天疱疮患者进行了HLA-DR、DQB1等位基因的分型，并分别与57例和53例作了对照。结果 与正常对照组比较，PE患者组DR4（DRB1*0406）、DRB1*14、DQB1*0302、DQB1*0503基因频率比对照组显著增高。结论 HLA-DRB1*14、DQB1*0503可能是汉族PE患者易感的单倍型。     

蒙古族寻常性银屑病与HLA-Cw及DRB1位点相关性研究

【摘要】 目的 探讨蒙古族人群寻常性银屑病与HLA-Cw 及DRB1等位基因的相关性,为银屑病病因学研究提供依据。方法 序列特异性引物聚合酶链反应（PCR-SSP）对蒙古族寻常性银屑病患者81例及正常蒙古族100例进行HLA-Cw及DRB1位点的等位基因进行分型。结果 银屑病组HLA- Cw*06,DRB1*07等位基因频率显著高于健康对照组,HLA- Cw*04、DRB1*04等位基因频率显著低于健康对照组（Pc ＜ 0.05或0.01）。在发病年龄 ＜ 40岁银屑病及家族史阴性患者中HLA- Cw*06、DRB1*07等位基因频率显著高于健康对照组,而HLA- Cw*04、DRB1*04显著低于健康对照组（Pc ＜ 0.05）。在发病年龄≥ 40岁的银屑病及家族史阳性患者中只有HLA- Cw*06等位基因频率显著高于健康对照组（Pc ＜ 0.05）。结论 HLA- Cw*06、DRB1*07等位基因可能是内蒙古地区蒙古族人群寻常性银屑病的易感基因。HLA- Cw*04、DRB1*04等位基因可能是内蒙古地区蒙古族人群寻常性银屑病发病的保护因子。HLA- DRB1*07可能是发病年龄 ＜ 40岁的银屑病的易感基因,而HLA- Cw*04、DRB1*04则可能是发病年龄 ＜ 40岁银屑病的保护因子。     

Association of HLA loci alleles and antigens in Saudi patients with vitiligo

HLA complex is composed of several closely linked loci, each containing several alleles, yielding a high expression of polymorphism. Vitiligo, a commonly acquired dermatological disorder, has been associated with different HLA antigens in different ethnic groups. In this study, HLA classes I (HLA-A, B, and C) and II (HLA-DR, DQ) antigens/alleles were analyzed in a group of 80 Saudi subjects consisting of vitiligo patients (40) and matched controls (40). The frequency of antigens of various HLA loci was tested using two-stage microcytotoxicity assays, while the frequency of alleles of HLA-DR was screened by polymerase chain reaction/sequence specific primers (PCR/SSP) method. The frequencies of HLA-B7, B15, Bw6, Cw6, Cw7, and DRB4*010101 were found to be significantly higher in vitiligo patients compared to controls [P = 0.029, 0.015, 0.033, 0.009, 0.043, and 0.015, respectively, with relative risk (RR) > or = 3, etiologic fraction (EF) > or = 0.4]. On the other hand, HLA-A9, B5, DQ1, and DRB3*010101 were significantly decreased in vitiligo patients compared to healthy Saudis [P = 0.008, 0.004, 0.028, and 0.04, respectively, with RR < 1 and preventive fraction (PF) < 0.5]. Among the patients, the highest allele frequency was noted for DRB4*010101(70%), while in controls it was for DRB3*010101 (72.5%). These results for antigens and allele frequency of various HLA Loci in vitiligo patients and control subjects suggested that HLA-B7, Bw6, Cw6, Cw7, and DRB4*010101 could be susceptible to vitiligo, while HLA-A9, B5, DQ1, and DRB3*010101 might be negatively associated with the development of vitiligo in Saudis.