Immunoglobulin E (IgE), interleukin-5 (IL-5) and its receptors, and interleukin-4 (IL-4) receptors are used as molecular targets for clinical diagnosis of asthma; however, specific and individual differences are very large, and the clinical treatment of asthma patients is still inadequate [4, 5]. The gene discussed is IL4; the disease is asthma.