Figure 2.

Effects of plasma from normal control and uraemic plasma on NO_x (nitrate and nitrite) production on human dermal microvascular endothelial cells (HDMEC). After 6 h incubation with normal control plasma or uraemic plasma with or without 100 μm l-arginine or d-arginine, the cells were incubated with MEM medium for 2 h. The NO_x concentration was then measured in the cell medium. * P < 0.05 compared with control baseline.