QRT-PCR confirmed that Circ-ATP2B1 was highly expressed in GC cells and tissues, and it was found that the expression of GLUT1, GLUT3, LDHA, and PKM2 in GC tended to increase with the increase of pathological grading of GC, which was consistent with the trend of the expression of Circ-ATP2B1 [72]. The gene discussed is PKM; the disease is gastric cancer.