More recently, in vivo studies have demonstrated that DEHP induces Th2 and Th17 immune responses and airway inflammation in mice (Alfardan et al. 2018), and thymic stromal lymphopoietin (TSLP), Th2 immune response and interleukin-7 receptor in rats (Wang et al. 2018); all of which exacerbates asthma. This evidence concerns the gene TSLP and asthma.