RAB23 and gastric cancer: As it is evident, total area under the curves (AUCs) of RAB23 (AUC = 0.63, sensitivity 71% and specificity 51%, P = 0.02) and miR-195-5p (AUC = 0.68, sensitivity 80% and specificity 54%, P = 0.002) were > 60%, suggesting that RAB23 and miR-195-5p can serve as diagnostic biomarkers for distinguishing patients with gastric cancer from healthy controls.