Figure 5

Hcy induces the hypermethylation of DDAH2 promoter in EPCs. A. The mean methylation status for each of the 12 CpG sites within DDAH2 promoter in EPCs untreated. B. The mean methylation status for each of the 12 CpG sites within DDAH2 promoter in EPCs treated with 1 mM Hcy. C. The mean methylation status for each of the 12 CpG sites within DDAH2 promoter in EPCs treated with 1 mM Hcy and 5 μM 5-Aza. D. Relative mRNA expression of DDAH2 in EPCs of different groups. Values were expressed as means ± SD (n = 3). *P < 0.05, **P < 0.01 vs. Control; #P < 0.05 vs. 1 mM Hcy treated group.