Figure 6.

Representative hematoxylin and eosin‐stained sections of mouse bladder. Top panels: Bladder sections from wild‐type female mice exposed to room air (left) or 6 months cigarette smoke (right). Breaks in the urothelium are indicated by the arrows. Middle panels: Bladder sections from iPLA ₂ β ^−/− female mice exposed to room air (left) or 6 months cigarette smoke (right). Bottom panel: Number of urothelial breaks detected in each animal group, normalized to 1.0 for the wild‐type mice exposed to room air. Six animals in each group.