胃癌前病变及胃癌患者血清及胃组织幽门螺杆菌的检测及意义

目的 探讨幽门螺杆菌(Hp)感染与胃癌前病变、胃癌发生的关系;探讨血清与胃组织Hp表达的相符性,为胃癌前病变的监测和治疗提供依据.为早期发现、诊断和治疗胃癌提供参考指标.方法 采用免疫层析一步法检测血清Hp,免疫组织化学sP法检测胃组织Hp,对312例胃疾病患者进行检查分析,其中经病理确诊的胃癌111例,胃癌前病变170例,浅表性胃炎31例.结果 血清及胃组织中Hp的检出率以胃癌前病变最高(分别为80.6%、86.2%),胃癌次之(分别为52.3%、66.7%),浅表性胃炎中检出率较低(分别为32.3%、38.7%),三组之间比较差异均有统计学意义(P<0.01).胃组织Hp检出率明显高于血清.结论 Hp参与了胃癌前病变和胃癌的发病过程,可把血清及胃组织Hp检测作为对癌前病变的初步监测及治疗观察指标之一.血清Hp检测简便易行,可作为普查内容,对血清Hp阳性的患者建议做胃镜组织学检查及胃组织Hp检查.

Evaluation by examining the infection of Helicobacter pylori between precancerous lesions and gastric cancer patients

Objective To provide the basis for early detection and treatment of precancerous lesions of gastric carcinoma, and reference for early discovery, diagnoses and treatment of gastric cancer, by examining the differences of expression of Helicobaeter pylori (Hp), both in the gastric mueosa and in blood serum, between precancerous lesions of gastric carcinoma patients and gastric cancer patients. Methods Used immunechromatographic method and protein chip system to determine the expression of Hp in blood serum and used immunohistochemistry to detect the expression of Hp in gastric mucosa. The patients had been diagnosed by pathological methods, 170 patients with precancerous lesions of gastric carcinoma, 111 patients with gastric carcinoma and 31 patients with superficial gastritis. Results The expression of Hp was detected on every stage of precancerous lesions and gastric carcinoma. Compared with the detection rates of Hp, precancerous lesions of gastric carcinoma was higher than gastric carcinoma and superficial gastritis, superficial gastritis was the lowest. The differences of the three were significant (P<0.01). The detection rate of Hp in the gastric mueosa (86.2%, 66.7%, 38.7%, respectively)was obviously higher than in blood serum (80.6%, 52.3%, 32.3%, respectively). Conclusions Hp participates in the process of the precancerous lesions and gastric carcinoma. The expression of Hp both in the gastric mueosa and in the blood serum could be one of the indexes, which might report the process and curative effect of precancerous lesions. With such advantages as simple and applicability, the detection of Hp in the blood serum could be used widely. The endoscopy and the detection of Hp in the gastric mucosa are suggested for patients with Hp positive in the blood serum.