Figure 3From: Augmentation of arginase 1 expression by exposure to air pollution exacerbates the airways hyperresponsiveness in murine models of asthmaBronchoalveolar lavage differential cell counts and macrophage expression of arginase 1. A) Differential cell counts from BAL samples in the sub-acute model OVA/PBS (□) and OVA/OVA (■) mice exposed to FA or CAP+O3 (*P < 0.05). (B) Images of arginase 1 immunostained slides of BAL samples and quantification of the percentage of positive macrophages (400× magnification; bar = 100 μm; brown colour indicates positivity; representative images of n = 5-6/group; *P < 0.05, **P < 0.01).Back to article page