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胃蛋白酶原、胸苷激酶—1联合检测在胃癌筛查中的应用

2018-06-13李卫兵王奎明侯炜炜喻海忠袁建芬姚辉肖春红

中国医药导报 2018年10期
关键词:胃癌血清检测

李卫兵 王奎明 侯炜炜 喻海忠 袁建芬 姚辉 肖春红

[摘要] 目的 探讨胃蛋白酶原(PG)与胸苷激酶-1(TK1)联合检测在胃癌筛查中的应用价值。 方法 收集南通市中医院2016年2月~2017年6月消化内科病例178例,其中,胃癌组106例(早期胃癌46例,进展期胃癌60例)、萎缩性胃炎组72例,正常对照组为同期健康体检人员80例。采用酶联免疫吸附试验(ELISA)定量测定空腹血PG,酶免疫点印迹化学发光法测定TK1。 结果 胃癌组患者胃蛋白酶原Ⅰ(PGⅠ)和胃蛋白酶原Ⅰ/胃蛋白酶原Ⅱ(PGR)水平显著低于萎缩性胃炎组(P < 0.05)和正常对照组(P < 0.05),胃癌组TK1水平明显高于萎缩性胃炎组(P < 0.05)和正常对照组(P < 0.05);进展期胃癌组PGⅠ及PGR水平明显低于早期胃癌组(P < 0.05),TK1水平与胃癌的分期无关(P > 0.05)。PG检测的灵敏度和特异度为52.1%、81.9%,TK-1检测的灵敏度和特异度为47.2%、86.1%,两者联合检测的灵敏度和特异度为81.1%、79.2%,联合检测的灵敏度明显高于单独检测(P < 0.05)。 结论 联合测定PG、TK1在健康人群胃癌的筛查中具有较好的临床应用价值。

[关键词] 胃蛋白酶原;胸苷激酶-1;胃癌

[中图分类号] R735.2 [文献标识码] A [文章编号] 1673-7210(2018)04(a)-0075-04

[Abstract] Objective To investigate the value of pepsinogen (PG) and thymidine kinase 1 (TK1) combined detection for gastric cancer screening. Methods Two hundred and fifty-eight cases were included in the research from February 2016 to June 2017, who were stomach cancer (n=178) [including early gastric cancer (n=46), progress gastric cancer (n=60)], atrophic gastritis (n=72), and healthy individuals (n=80) as control respectively. Blood PG and TK1 were assayed with enzyme linked immonosorbent assay (ELISA) and Western blot-enayme immunoassay chemilumiescence commercial kit. Results PGⅠand PGⅠ/Ⅱ(PGR) of gastric cancer were lower than those of atrophic gastritis and normal control (P < 0.05), and which of advanced gastric cancer were lower than those of early gastric cancer (P < 0.05). TK1 of gastric cancer was higher than that of atrophic gastritis and normal control patients (P < 0.05), which had nothing to do with the staging of gastric cancer (P > 0.05). Sensitivity and specificity for PG and TK1 were 52.1%, 81.9% and 47.2%, 86.1% respectively. Sensitivity and specificity for PG and TK1 combined assay were 81.1% and 79.2%, which were significantly higher than those of individual assay (P < 0.05). Conclusion This study shows that PG and TK1 combined detection has excellent value for gastric cancer screening.

[Key words] Pepsinogen; Thymidine kinase 1; Gastric cancer

胃癌是目前最為常见的恶性肿瘤,为世界癌症第二大死亡原因,严重威胁着人类的生命健康[1],我国是胃癌的高发区[2],早发现、早治疗是提高胃癌的治愈率,降低病死率和延长患者生存期的关键。早期胃癌患者无明显症状或症状轻微,待发现时多数已是中晚期,错过了治疗的最佳时机。目前确诊胃癌的金标准为胃镜加病理[3],日本曾应用胃镜技术进行胃癌筛查,发现早期胃癌率达40%~50%,但是胃镜是一种有创性检查同时筛查成本很高[4],因此对胃癌血清学标志物的研究显得尤为重要[5]。本研究主要通过联合检测血清中胃蛋白酶原(PG)和胸苷激酶-1(TK1),为胃癌的早期筛查提供指导性意见。

1 资料与方法

1.1 一般资料

选取2016年2月~2017年6月南通市中医院(以下简称“我院”)消化内科就诊病例为研究对象,共178例。……

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