Correlation between FCER2 gene rs28364072 polymorphism and asthma / 实用医学杂志

ABSTRACT

Objective To determine whether rs28364072 polymorphism in the low-affinity IgE receptor (FCER2)is associated with asthma risk in Chinese Han nationality asthmatics.Methods 120 cases of asthmatics and 116 healthy control subjects were enrolled in this study.DNA was purified from peripheral blood,and genotyping of rs28364072 SNP was performed by PCR and Sanger sequencing.The clinical indexes were compared between asthmatic subjects.Results A significant difference was found in the distributions of the genotyges (TT,TC,CC)and allele frequency among populations in north Indian,Saudi Arabian,Romas and Chinese Han nationality.A significant difference was also found in the distributions of the genotyges (TT,TC,CC) between asthmatic subjects and controls.Significant difference was observed in the allele (T/C) frequency between asthmatic subjects and healthy controls.The presence of C allele of GLCCI1 gene was found to be a greater risk factor in asthmaticsubjects compared with the healthy controls.The odds ratio (OR) of CC and CC+TC were 2.73 (1.19 ～ 6.23),2.05 (1.21 ～ 3.48),respectively.There was significant difference in the ACT score,EOS％ between CC and TT genotyge.Conclusion The minor alleles C of rs28364072 SNP was significantly associated with the increase of asthma risk in asthma patients of of Han Nationality of Chinese.