Relationship between HLA-DRB1 alleles and chronic urticaria with positive autologous serum skin test
WU Yi, MENG Jin-qiu, YAN Yu-lin, CAO Cun-wei, LIU Dong-hua, LIANG Ling
Published 2012-02-15
Cite as Chin J Dermatol, 2012,45(02): 78-80. DOI: 10.3760/cma.j.issn.0412-4030.2012.02.002
Abstract
Objective To investigate the relationship between HLA-DRB1 alleles and chronic urticaria with positive autologous serum skin test (ASST) in Guangxi Zhuang Autonomous Region.Methods ASST was conducted in 144 patients with chronic urticaria,who were subsequently divided into two groups according to the test result:positive group (n =62) and negative group (n =82).PCR amplification with sequence-specific primers was used to determine the genotypes of HLA-DRB1 alleles in the patients and 199 normal human controls.Chi-square test was performed to analyse the difference in the frequency of HLA-DRB1 alleles between the 3 groups by using the SPSS 13.0 statistical software package.Results There were significant differences in the frequency of HLA-DRB1*01,*1401 and *16 alleles among the patients with positive and negative ASST and the controls (x2 =10.92,Pc =0.032;x2 =35.34,Pc < 0.01 ;x2 =12.69,Pc =0.032).Paired comparison revealed significant differences in the frequency of HLA-DRB1*1401 allele between the patients with positive ASST and controls (RR =17.09,Pc < 0.01 ) as well as between the patients with positive and negative ASST (RR =7.20,Pc < 0.01).Conclusion HLA-DRB1*1401 allele may be,or be linked to,the predisposing gene of chronic urticaria with positive ASST in Guangxi Zhuang Autonomous Region.
Key words:
Urticaria; Alleles; Genes, MHC class Ⅱ; Skin tests
Contributor Information
WU Yi
Department of Dermatology and Venereology, First Affiliated Hospital of Guangxi Medical University, Nanning 530021, China
MENG Jin-qiu
Department of Dermatology and Venereology, First Affiliated Hospital of Guangxi Medical University, Nanning 530021, China
YAN Yu-lin
Department of Dermatology and Venereology, First Affiliated Hospital of Guangxi Medical University, Nanning 530021, China
CAO Cun-wei
Department of Dermatology and Venereology, First Affiliated Hospital of Guangxi Medical University, Nanning 530021, China
LIU Dong-hua
Department of Dermatology and Venereology, First Affiliated Hospital of Guangxi Medical University, Nanning 530021, China
LIANG Ling
Department of Dermatology and Venereology, First Affiliated Hospital of Guangxi Medical University, Nanning 530021, China