In addition, the circ-HuR (R = -0.602, P < 1.0 × 10− 4) or CNBP (R = 0.683, P < 1.0 × 10− 4) levels were negatively and positively correlated with those of HuR in these gastric cancer tissues, respectively (Additional file 1: Figure S4h). The gene discussed is CNBP; the disease is gastric cancer.