Figure 2: Effects of Alpinia officinarum on the levels of albumin (A), the activities of lactate dehydrogenase (B) and alkaline phosphatase (C) in the bronchoalveolar lavage fluid of particulate matter-induced mice. AO: Alpinia officinarum; PM: particulate matter; LD: low dose; MD: medium dose; HD: high dose. All values are expressed as mean±SD (n=10). ###P<0.001 compared with control group. **P<0.01, ***P<0.001 compared with PM group.