IL-4 and Th2 cell counts in asthma+DHT+E2 group were lower than that in asthma and asthma+E2 groups, while IL-4 and Th2 cells were increased in asthma +DHT group, but there was no significant difference between asthma +DHT+E2 group and asthma +DHT group (Figure 5G-M). This evidence concerns the gene IL4 and asthma.