IL-17 and IL-6 levels were significantly higher in plasma of children with allergic asthma than in those of the healthy control children (P < 0.01, P < 0.01), while TGF-β and IL-10 expression levels were markedly lower in the allergic asthma group than in the healthy control group (P < 0.01). This evidence concerns the gene TGFB1 and allergic asthma.