IL13 and asthma: As IL-13 is central to the progression of asthma and many miRNAs such as miRNA-126 can regulate its production directly and indirectly (Greenet al., 2013 ▶), in this study we have evaluated the preventive effect of alpha -Hederin on lung pathology, IL-13 mRNA and miRNA-126 in ovalbumin-sensitized male rats in order to elicit its mechanism.