Figure 1.

Visualization of leukocyte sticking in the arteriole by intravital fluorescence microscopy (performed using a charge-coupled device camera before and after lipopolysaccharide administration). Representative arterioles (a) before and (b) 8 hours after endotoxin application. Note that leukocytes also adhere to the endothelial lining of arterioles during endotoxemia despite high flow conditions.