KCNJ16 and oligodendroglioma: A concurrent search of the National Institutes of Health Repository of Molecular Brain Neoplasia Data (REMBRANDT) database for expression levels of KCN genes in invasive glial tumors (glioblastomas versus oligodendrogliomas that are less invasive) of patients on anti-seizure medications showed a significant decrease in KCNJ16 and trends in three other KCNs also encoding H+-sensitive proteins in glioblastomas.