The list of patients with brain gliomas evaluated in the present study with their basic characteristics (histopathological diagnosis, WHO grade, gender, age, and overall survival time), as well as promoter DNA methylation of analyzed genes (SFRP1, SFRP2, RUNX3, CBLN4, INA, MGMT, RASSF1A). Here, SFRP1 is linked to brain glioma.