Fig 1: The mean ± SEM level of interleukin‐4 (a), interferon‐gamma (b) and IFN‐γ/IL4 ratio (c) in the BALF of experimental groups (n = 8). Comparison of the data between groups was done using one way analysis of variance (ANOVA) with Tukey–Kramer posttest. Dexamethasone (Dex); Rosmarinic acid (RosA). +++: p < 0.001, comparison between control and the other experiment groups. **: p < 0.01 and ***: p < 0.001, comparison between asthma and treatment groups. ##: p < 0.01 and ###: p < 0.001, comparison between Dex and the other treatment groups. $$$: p < 0.001, comparison between RosA 0.5 vs. RosA 1 and 2 mg/kg.