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Objective To explore the expressions and clinical values of pro-gastrin-releasing peptide(ProGRP) and carbohydrate antigen 72-4 (CA72-4) in patients with gastric cancer.Methods Ninety patients with gastric cancer and fifty healthy subjects were selected from January 2014 to December 2016 in our hospital.Serum levels of ProGRP and CA72-4 were detected by electrochemiluminescence.The relationships between ProGRP and clinicopathological characteristics,postoperative recurrence and CA72-4 were analyzed.The diagnostic values of ProGRP and CA72-4 in gastric cancer were analyzed by receiver operating characteristic (ROC) curve.Results The expressions of ProGRP and CA72-4 in patients with gastric cancer were (249.3 + 28.9) pg/ml and (148.8 + 33.5) U/ml respectively,which were significantly higher than those of healthy subjects [(14.4 ± 7.6) pg/ml and (3.8 ± 1.4) U/ml],and the differences were statistically sigificant (t =56.320,P ＜ 0.001;t =30.504,P ＜ 0.001).The expression of ProGRP in TNM stage Ⅲ-Ⅳ [(269.1 ±30.9)pg/ml] was obviously higher than that in stage Ⅰ-Ⅱ [(198.5 +23.9)pg/ml],with a significant difference (t =11.200,P ＜ 0.001).The expression of ProGRP in patients with lymph node metastasis [(259.9 ±31.4)pg/ml] was significantly higher than that in patients without lymph node metastasis [(190.3 ±26.8)pg/ml],with a significant difference (t =9.500,P ＜ 0.001).The expression of ProGRP in patients with postoperative recurrence after one year [(181.3 ± 21.7)pg/ml] was higer than that in patients without postoperative recurrence [(26.1 ± 12.8)pg/ml],with a significant difference (t =31.830,P ＜ 0.001).There was a positive correlation between serum ProGRP and CA72-4 (r =0.792,P =0.012).According to the ROC curve,the cut-off point of ProGRP was 23.6 pg/ml,and the diagnostic sensitivity was 80.0％,the specificity was 70.0％.The cut-off point of CA72-4 was 11.2 U/ml,and the diagnostic sensitivity was 60.0％,the specificity was 89.0％.The sensitivity and specificity diagnostic value of combined detection were 89.7％ and 94.8％,better than those of individual detection (x2 =6.028,P =0.009;x2 =4.675,P =0.031).Conclusion ProGRP and CA72-4 are highly expressed in the serum of gastric cancer patients,with a positive correlation.The combined detection of ProGRP and CA72-4 can improve the diagnostic sensitivity and specificity.ProGRP is significantly correlated with tumor stage,lymph node metastasis and prognosis,which may be a mew target for prevention and treatment of gastric cancer.
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Objective:To explore the predictive value of human serum epididymis protein 4 (HE4), carbohydrate antigen 72-4 (CA72-4) and vascular endothelial growth factor (VEGF) for the recurrent risk of gynecological tumor. Methods: A total of 142 patients with gynecologic malignant tumors were divided into the observation group, and all of them were followed up, and their recurrence rate within 2 years after operation was calculated. At the same time, 50 healthy women were divided into control group. The peripheral venous blood of all subjects were collected to test serum HE4 and VEGF levels by using enzyme-linked immunosorbent assay (ELISA). The serum CA72-4 was detected by using Roche electrochemiluminescence immunoassay. Three indicators of two groups were compared. Results: Before treatment, the serum HE4, CA72-4 and VEGF levels of the observation group were significantly higher than those of the control group (t=58.971,t=26.795,t=42.021;P<0.01). And the positive rate of HE4, CA72-4 and VEGF of the gynecological tumor group were significantly higher than those of the control group (x2=50.061, x2=37.596,x2=43.765,P<0.01). Within post-operative 2 years, there were 84 cases were recurrence in observation group. And the HE4, CA72-4 and VEGF of recurrent patients were significantly higher than that of non-recurrent patients (t=53.075,t=22.211,t=55.948,P<0.01).The sensitivity and negative predictive value of the combined detection of 3 indicators were significantly larger than that of single detection of CA72-4 (x2=8.537,x2=5.345, P<0.05).Conclusion: Patients with gynecological malignant tumor have high expression of serum HE4, CA72-4 and VEGF and the combined detection of 3 indexes possessed more sensitive, and it has greater predictive value for the recurrent risk of gynecologic malignant tumor.
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Objective To explore the clinical application of DKK-1,TFF3 and CA72-4 detection in the diagnosis and treatment of gastric cancer.Methods Seventy-five cases(gastric cancer group) of gastric cancer admitted to our hospital from January 2013 to May 2015 were selected.Seventy cases of benign gastric disease(benign gastric disease group) and 70 persons undergoing the physical examination(healthy control group) were selected as the research subjects.The concentration of CA72-4 in each group was detected by the electrochemiluminescence analyzer.The serum DKK-1 and TFF3 levels in each group were detected by enzyme linked immunosorbent assay(ELISA).The receiver operating characteristic(ROC) curve was drawn for evaluating the diagnostic efficiency of each index in each group.The sensitivity,specificity,positive predictive rate and negative predictive rate of 3 indicators for diagnosing gastric cancer before operation were compared.The concentration change of various indexes after gastric cancer radical resection were compared..Results The concentrations of DKK-1,TFF3 and CA72-4 in the gastric cancer group were significantly higher than those in the benign gastric disease group and healthy control group,the difference was statistically significant(P<0.05).The area under ROC curve of DKK-1,TFF3 and CA72-4 were 0.876(95%CI 0.803-0.950),0.944 4(95%CI 0.894-0.975) and 0.818(95%CI 0.726-0.884) respectively.The sensitivity of CA72-4 was 78.6% and the specificity was 84.3%,the sensitivity of DKK-1 was 93.6% and the specificity was 87.1%,the sensitivity and specificity of TFF3 was 92.4% and 90.1% respectively.The concentrations of DKK-1,TFF3 and CA72-4 after radical resection in the gastric cancer group were significantly reduced,the difference was statistically significant compared with before treatment(P<0.05).Conclusion The detection of DKK-1,TFF3 and CA72-4 has a certain clinical value for the diagnosis of gastric cancer.The combined detection of these 3 indicators is conducive to improve the specificity and sensitivity of gastric cancer diagnosis.
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Objective To establish a simple and practical superparamagnetic immunochromatographic test strip for rapidly monitoring human serum level of CA72-4. Methods Water-soluble carboxylated super-paramagnetic nanoparticles were prepared with a modified one-step hydrothermal synthesis method. Magnetic probe was prepared by immobilizing specific antibody (mAb1) onto the surface of nanoparticles. Following with optimization and assembly of the test strip , we evaluated sensitivity , specificity , stability of this method for serum CA72-4 detection. Results The optimized test strip provided not only the qualitative results, but also the high sensitivity quantitative detection through stable magnetic signal. The detection limit was 0.83 IU/mL. One hundred clinical samples ( 70 positive and 30 negative ) were measured to assess these test strips with high sensitivity (99%) and high specificity (93%). The test strip and magnetic signal possessed high stability. Conclusion A rapid and quantitative detection of CA72-4 by the test strip was accomplished. This method is rapid, sensitive and quantitative, possessing great potential in large sample screening or in-home testing.
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Objective To study the value of serum HMGB1(high mobility group box-1) and carbohydrate antigen 72-4(CA72-4) in patients with early gastric cancer .Methods 50 cases of early gastric cancer patients were enrolled as a group ,45 cases of gastric lesions as benign gastric benign group ,100 cases of healthy people as healthy group.Serum HMGB1 and CA72-4 in all people were detected .Results Early gastric cancer serum HMGB1 and CA72-4 was higher than benign lesions in the stomach and the healthy group (χ2 =33.69,82.95,51.41,104.74, P0.05).HMGB1 diagnosis of early gastric cancer sensitivity was 70.0%,specific-ity 95.2%and accuracy was 88.7%.CA72-4 diagnosis of early gastric cancer with a sensitivity of 80.0%(40/50), specificity was 97.2%(141/145) an accuracy of 92.8%(181/195).Joint detection,diagnosis of early gastric cancer with a sensitivity of 94.0%(47/50),while the specificity was 93.1%(135/145),the accuracy was 93.3%(182/195),higher than those of the single detection sensitivity and accuracy .Early gastric cancer with lymph node metasta-sis in patients with serum HMGB1 and CA72-4 were significantly higher than those in patients without lymph node metastasis,the two groups were significantly different (t=2.927,4.096,all P<0.05).Conclusion Joint detection of serum HMGB1 and CA72-4 allows early diagnosis of gastric cancer ,and to determine the prognosis of patients .