Abstract
Objective To investigate the diagnostic value of serum miR-21 andCA199 for pancreatic cancer, and aim to provide a potential diagnostic method for the diagnosis of pancreatic cancer in clinical practice. Methods Detect the levels of CA199 and the relative expression of miR-21 in 134 pancreatic cancer patients, 97 benign pancreatic disease patients and 106 healthy subjects from January 2014 to December 2015 in Clinical Laboratory of 263 Clinical Department of Army General Hospital, Evaluate the diagnostic value of single and combined detection of CA199 for pancreatic cancer. The diagnostic values were evaluated by receiver operating characteristic curve, sensitivity and specificity. The area under the receiver operating characteristic curve was compared by the z-score test. Results Compared with healthy control group, CA199 and miR-21 in benign pancreatic disease group and pancreatic cancer group showed significantly increased. Compared with benign pancreatic disease group, CA199 and miR-21 alsoshowed significantly increased in pancreatic cancer group. For discriminating the healthy control group and pancreatic cancer group, the sensitivity and specificity were 77.61% and 69.81% respectively when combination CA199 and miR-21. The AUC of combination CA199 and miR-21 was0.85, it showed significantly higher when compared with CA199 and miR-21 alone (P=0.021, P=0.036). For discriminating the benign pancreatic disease group and pancreatic cancer group, the sensitivity and specificity were 69.40% and 65.98% respectively when combination CA199 and miR-21. The AUC of combination CA199 and miR-21 was 0.78, it showed significantly higher when compared with CA199 and miR-21 alone (P=0.017, P=0.023). Conclusions miR-21 showed certain diagnostic value for pancreatic cancer. Combined with CA199, miR-21 may provide a potential assistant diagnostic method for the diagnosis of pancreatic cancer.(Chin J Lab Med, 2017, 40: 400-403) Key words: Pancreatic neoplasms; MicroRNAs; CA-19-9 antigen
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