PAF1 and uremia: The findings provided by qRT-PCR and Western blotting techniques indicated that, when compared with the normal group, the protein and mRNA expressions of VEGF increased in the peritoneal tissues of rats in the uremia, PD2, Vector-2, PD4, VEGF shRNA-4, Vector-4, and PD4 + Endostar groups (all P<0.05).