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用放射免疫法和ＥＬＩＳＡ法联合检测６８例胃病患者胃液、血清中癌胚抗原（ＣＥＡ）、β２－微球蛋白（β２－ＭＧ）和幽门螺杆菌抗体（Ｈｐ－Ａｂ）含量。结果表明：①胃癌组胃液ＣＥＡ和β２－ＭＧ浓度明显升高，与正常对照组比较有显著差异（Ｐ＜０．０１）。②良性病变组血清Ｈｐ抗体阳性率高于胃癌组（Ｐ＜０．０５）。提示联合检测胃液ＣＥＡ、β２－ＭＧ和血清Ｈｐ抗体对胃癌诊断有一定临床价值。
The contents of carcinoembryonic antigen (CEA), β2-microglobulin (β2-MG) and Helicobacter pylori antibody (Hp-Ab) in gastric juice and serum of 68 patients with gastric diseases were detected by radioimmunoassay and ELISA. The results showed that: 1 The concentrations of CEA and β2-MG in the gastric juice of gastric cancer group were significantly higher than those in the normal control group (P<0.01). The positive rate of serum Hp antibody in benign lesions was higher than that in gastric carcinoma (P<0.05). It is suggested that the combined detection of gastric juice CEA, β2-MG and serum Hp antibody has a certain clinical value in the diagnosis of gastric cancer.