Figure 1.

Effect of ischemia (55 minutes) and reperfusion on P-selectin expression, complement deposition, and neutrophil infiltration in WT mice. a: Relationship between P-selectin and complement at different times after reperfusion. In each group, mean areas of positive P-selectin expression or complement deposition were determined within 40 high-powered fields per animal (see Materials and Methods). b: Infiltration of neutrophils at different stages after reperfusion. In each group, mean neutrophil counts were determined in 8 to 12 fields per animal. Numbers in parentheses represent numbers of animals studied at each point.