Table 2. Proportion of COX-2 methylation in normal gastric tissues and carcinomas by methylation-specific PCR and pyrosequencing.
MSP, methylation-specific polymerase chain reaction; PS, pyrosequencing; M, methylated case; U, unmethylated case; GC, gastric carcinoma; EGC, early gastric carcinoma; AGC, advanced gastric carcinoma.
