Abstract

目的 研究血清胃蛋白酶原(PG)、胃泌素17(G-17)水平与胃癌的关系,评价其在胃癌筛查、病情评估和预后评估方面的价值。 方法 以2014年1月至2017年6月因消化道症状在合肥市第三人民医院消化内科行胃镜检查符合入选标准的170例患者为研究对象,根据组织病理学诊断结果分为非萎缩性胃炎组85例和胃癌组85例。采用酶联免疫吸附试验(ELISA)检测患者血清PGⅠ、PGⅡ和G-17水平,计算PGⅠ/PGⅡ比值(PGR)。对两组间计量数据比较采用t检验,多组间比较采用方差分析。 结果 非萎缩性胃炎组和胃癌组患者血清PGⅠ水平比较[(146±43)ng/ml比(149±55)ng/ml],差异无统计学意义(t=0.821,P=0.414)。胃癌组患者血清PGⅡ水平高于非萎缩性胃炎组[(26±7)ng/ml比(17±7)ng/ml,t=2.359,P=0.020],PGR低于非萎缩性胃炎组[(7±4)比(10±4),t=3.244,P=0.020],G-17略升高,但与非萎缩性胃炎组比较[(11±7)pmol/L比(10±5)pmol/L],差异无统计学意义(t=1.061,P=0.291)。不同性别的胃癌患者血清PGⅠ、PGⅡ水平差异有统计学意义(t=2.014,P=0.049;t=2.015,P=0.049);不同病变部位、分化程度的胃癌患者G-17水平差异有统计学意义(F=5.398,P=0.002;F=9.516,P=0.000);不同病变发生部位、TNM分期的胃癌患者PGR差异有统计学意义(F=2.218,P=0.092;t=2.167,P=0.036)。 结论 联合检查血清PG和G-17水平可用于胃癌的筛查,其对病情评估和预后评估有一定的帮助。

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