IDH1 and neoplasm: Analysis showed that expression levels of AC064875.1 and H19 were significantly correlated with age (< = 41 and >41 years), tumor grade, IDH1 mutation status and chromosome 1p19q joint deletion (p < 0.05), however, expression levels of these lncRNAs were not correlated with gender and MGMT methylation status (Figure 8A and 8B).