(A) Detection of the junction site in hsa_circ_0076931 via Sanger sequencing. (B) The cyclic nature of hsa_circ_0076931 was detected via agarose gel electrophoresis. (C) The level of hsa_circ_0076931 in glioma (n=41) and normal brain tissues (n=31) was examined using qRT-PCR (****P<0.0001). (D) The ROC curve analyses of hsa_circ_0076931 (AUC = 0.882) in glioma patients. AUC represents the area under the ROC curve.