摘要目的：探讨联合检测血清骨桥蛋白（OPN）、胃癌相关抗原（MG7-Ag）和组织多肽特异性抗原（TPS）对胃癌诊断的临床价值。方法用酶联免疫吸附试验（ELISE）检测60例胃癌患者血清 OPN、MG7-Ag、TPS 含量，同时随机选取胃良性病变组20例、癌前病变组24例、40例健康人作为对照研究。结果胃癌组血清 OPN、MG7-Ag 和 TPS 均明显高于胃良性病变组、癌前病变组及健康对照组（F ＝50．993、62．50、41．396，均P ＜0．01），单项检测敏感性分别为71．7％、80．0％、67．3％，三项联合检测敏感性为91．7％。结论血清OPN、MG7-Ag 和 TPS 的联合检测可提高胃癌诊断的灵敏度，对胃癌诊断有较大的辅助诊断意义。

abstractsObjective To explore the combined detection of serum osteopontin(OPN),gastric cancer associ-ated antigen(MG7 -Ag)and tissue polypeptide specific antigen(TPS)for the clinical value of diagnosis of gastric cancer.Methods Enzyme linked immunosorbent test(ELISA)was used to detect serum levels of OPN,MG7 -Ag and TPS of 60 cases of gastric cancer patients,gastric benign lesion group 20 cases were randomly selected at the same time,the group of 24 cases of precancerous lesions and 40 healthy people were also selected as control study.Results Gastric cancer group′s serum levels of OPN,MG7 -Ag and TPS were significantly higher than those of gastric benign lesions,the precancerous lesion group and healthy control group(F =50.993,62.50,41.396,all P <0.01 ).The single detection sensitivity were 71.7%,80.0% and 67.3% respectively,three joint detection sensitivity was 91.7%.Conclusion Combined detection of serum OPN,MG7 -Ag and TPS can improve the sensitivity of diagnosis of gastric cancer,and has higher diagnosis significance in the diagnosis of gastric cancer.