Figure 2From: Comparison between cigarette smoke-induced emphysema and cigarette smoke extract-induced emphysema MLI, DI, and AI in C57BL/6 J mice induced by CS exposure (A) and that induced by intraperitoneal injection of CSE (B). MLI, mean linear intercept; DI, destructive index; AI, apoptotic index; CS, cigarette smoke; CSE, cigarette smoke extract. ★P < 0.01 compared with controls.Back to article page