Asthma is an inflammatory disorder characterized by the infiltration of inflammatory cells into lung tissues, hypersecretion of the mucus by goblet cells, airway hypereactivity (AHR), Th2 mediated cytokines and their over-expressions including IL-4, IL-5 and interleukin-13 (IL-13) (Rogerio et al., 2010). This evidence concerns the gene IL13 and asthma.