Figure 6

BALF cell differentiation and cytokines (pg/ml) IL-13 and TARC after respectively 2 (Fig. 6A and 6B) and 4 (Fig. 6C and 6D) weeks of concurrent exposure to OVA/PBS and Smoke or Air in C57BL/6 mice (Combination Protocol 3A and 3B). n = 8 mice/group; bars indicate mean ± SEM. * p ≤ 0.05: all groups vs PBS/Air (Mann-Whitney U test); ⁺ p ≤ 0.05: OVA/Smoke vs. PBS/Smoke (Mann-Whitney U test); ^# p ≤ 0.05: OVA/Smoke vs. OVA/Air (Mann-Whitney U test); ND = Not Detectable (detection limit = 1–2 pg/ml)