Figure 5.

— Quantitative comparison of capillary and lymphatic vessel density and correlation between capillary density and peritoneal dialysis (PD) duration. (a) The capillary density determined by CD31 staining was significantly higher in the group on neutral dialysate than in the group on acidic dialysate or not yet on PD. However, lymphatic vessel density did not differ significantly between the groups. (b) The density of CD31-positive (CD31+) capillaries was positively correlated with PD duration in the group on neutral dialysate, but it was negatively correlated with PD duration in the group on acidic dialysate.