Figure 4

Evolution of arteriolar and venular mean internal diameters during the experimental period. Values are presented as ratios relative to baseline values. Sequential measurements were performed after one (t = 1 h), two (t = 2 h), and three (t = 3 h) hours of LPS injection. LPS, endotoxemic animals (n = 10); LPS/FR, endotoxemic and fluid resuscitated animals (n = 10); LPS/FR/LNNA, endotoxemic, fluid resuscitated, and L-NNA + L-Arginine treated animals (n = 10). ^† p <0.05 vs. group baseline; *p <0.05 vs. LPS group at the same time point.