Polymorphisms in IL-4 and IL-4R genes in children with allergic asthma / 中国病理生理杂志

ABSTRACT

AIM: To determine whether interleukin 4 and interleukin 4 receptor ? chain are associated with allergic asthma in children and to study the impact of such polymorphism upon plasma IgE.METHODS: Two polymorphism sites of IL-4 and IL-4R were studied by polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP).RESULTS: (1)The results showed that the IL-4 promoter-589 was not associated with children allergic asthma, however, the IL-4R ? chain 576RR genotype and R allele were significantly increased in the subjects with asthma in children compared with age-matched control subjects (?2=11.84, P