Fig. 1.

Percentage of patients harboring miR-7 methylation in control, early and advanced-stages. MiR-7 methylation levels were measured by qMSP. To obtain the percentage of methylation for each sample the following equation was used: $\text{Cmeth}=100/\left[1+2^{\left({\text{CT}}_{\text{CG}}-{\text{CT}}_{\text{TG}}\right)}\right]$. We showed a statistical significant difference among lung cancer patients and non-cancer controls