... indicated that genetic factors may play an important role in the pathogenesis of asthma. Regulated upon activation, normal T-cell ex-pressed and secreted (RANTES), which generated by T lymphocyte, ... name, year of publica-tion, country of origin, ethnicity, type of asthma, number of cases and controls, and the minor allele fre-quency in controls. Meta-Analysis. The risk of asthma associated ... significantly increased risk of asthma (GG+CG vs CC: OR=1.24, 95%CI=1.08-1.41) without any be-tween-study heterogeneity. In the stratified analysis by asthma type, age and ethnicity, we found that the...