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. 2014 Oct 15;7(10):3202–3208.

Figure 4.

Figure 4

Administration of IL-21 before challenge does not ameliorate OVA-induced peribronchial inflammation. Lung sections were stained with hematoxylin and eosin for the measurement of inflammatory cells around the airways. The extent of cellular infiltration of the peri-airway region at 24 h after the last OVA challenge was comparable between the OVA sensitized/challenge group (B) and the IL-21-treated group (C). (A) Histologic section of lung from the normal control group.