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本文通过对各种影响因素特别是胃液中的非特异性吸附、水质。N_aN_3的处理,选择了各种适宜条件建立了ELISA双体夹心法,对p~H4.0以上胃癌病例阳性率可提高到94.4％。 通过对1064例SIgA检出的p~H分析和实验证明,明确了SIgA检出受p~H及胃蛋白酶影响的规律,探论了胃内调正低p~H标本的方法,提高了诊断阳性率。SIgA可以用来筛选病例和作为胃癌的辅助诊断指标,同时可用于发现监视“危险易感人群”探讨阻断方法,及时发现癌变,作为参考指标对提高早癌诊断率可能有一定意义。
In this paper, non-specific adsorption and quality of water in gastric juices are influenced by various influencing factors. The treatment of N_aN_3 was performed by selecting various suitable conditions to establish the ELISA double-body sandwich method. The positive rate of gastric cancer cases above p~H4.0 can be increased to 94.4%. Through the analysis of p~H detected by 1064 cases of SIgA and experimental results, the rules of the effect of p~H and pepsin on the detection of SIgA were clarified, and the methods for correcting low p~H specimens in the stomach were explored to improve the diagnosis. Positive rate. SIgA can be used to screen cases and serve as an auxiliary diagnostic marker for gastric cancer. It can also be used to detect and monitor “risk-susceptible populations” to explore blocking methods, and timely detection of cancerous changes. As a reference indicator, SIgA may have a certain significance in improving the diagnostic rate of early cancer.