Figure 4.

Short-term exposure to PM₁₀ induced pulmonary inflammation in mice. (A) Experimental schematic describing short-term exposure to PM₁₀ (5 mg/kg) for 5 days and PD mice following MPTP challenge to evaluate lung inflammation. (B–E) Bronchoalveolar large (BAL) fluid was analyzed by counting the total number of inflammatory cells (B), macrophages (C), neutrophils (D), and eosinophils (E) in mice. (F,G) Representative images of lung tissues stained with hematoxylin and eosin (H&E). The scale bar is 50 μm. The data are expressed as the mean ± SEM (n = 5–8 per group). * p < 0.05; ** p  <  0.01. ns indicates no significant differences among the groups.