Fig. 5. The location and expression of β-arrestin 2 in lung tissues of each group. (A) The β-arrestin 2 was primarily located in the bronchial epithelial cells and expressed in the membrane and cytoplasm (original magnification: 200×). (B) Semiquantitative scores of β-arrestin 2 calculated via immunohistochemistry. Values are means ± standard deviations (n = 8 per group).

Control, control group; Sensitization, sensitization group; Model, model group; Dex, dexamethasone-treated group; HY, HY peptide-treated group.

^*P < 0.05 vs. control; ^†P < 0.05 vs. model.