IL13 and asthma: These results support other studies that have investigated the role of PCF and inflammation where mice treated with PCF were found to have a corrected imbalance of Th1/Th2 [24], decreased IL-5 and an adjusted balance of oxidants/antioxidants [32], and children with asthma have been shown to have reduced IL-4 and IL-13 and increased interferon (INF)-γ [33].