Fig. 1From: Identification and validation of methylated PENK gene for early detection of bladder cancer using urine DNAAssessment of methylation levels of nine candidates in bladder tissues by bisulfite-pyrosequencing. Methylation status was determined for nine genes in primary tumor and corresponding nontumor tissues used in CpG microarray analysis. MtI values are plotted from pyrosequencing results. Samples from the same patients are linked with a straight line. NT: Nontumor tissues, T: Tumor tissues. *, P < 0.05 and **, P < 0.01 analyzed by paired t-testBack to article page