首页> 外文期刊>World Journal of Gastroenterology >H pylori infection and systemic antibodies to CagA and heat shock protein 60 in patients with coronary heart disease.
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H pylori infection and systemic antibodies to CagA and heat shock protein 60 in patients with coronary heart disease.

机译:冠心病患者的幽门螺杆菌感染以及针对CagA和热休克蛋白60的全身性抗体。

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AIM: to determine the overall prevalence of H pylori and CagA positive H pylori infection and the prevalence of other bacterial and viral causes of chronic infection in patients with coronary heart disease (CHD), and the potential role of anti-heat-shock protein 60 (Hsp60) antibody response to these proteins in increasing the risk of CHD development. METHODS: Eighty patients with CHD and 160 controls were employed. We also compared the levels of anti-heat-shock protein 60 (Hsp60) antibodies in the two groups. The H pylori infection and the CagA status were determined serologically, using commercially available enzyme-linked immunosorbent assays (ELISA), and a Western blotting method developed in our laboratory. Systemic antibodies to Hsp60 were determined by a sandwich ELISA, using a polyclonal antibody to Hsp60 to sensitise polystyrene plates and a commercially available human Hsp60 as an antigen. RESULTS: The overall prevalence of H pylori infection was 78.7% (n = 63) in patients and 76.2% (n = 122) in controls (P = 0.07). Patients infected by CagA-positive (CagA(+)) H pylori strains were 71.4% (n = 45) vs 52.4% of infected controls (P = 0.030, OR = 2.27). Systemic levels of IgG to Hsp60 were increased in H pylori-negative patients compared with uninfected controls (P < 0.001) and CagA-positive infected patients compared with CagA-positive infected controls (P = 0.007). CONCLUSION: CagA positive H pylori infection may concur to the development of CHD; high levels of anti-Hsp60 antibodies may constitute a marker and/or a concomitant pathogenic factor of the disease.
机译:目的:确定幽门螺杆菌和CagA阳性幽门螺杆菌感染的总体患病率以及冠心病(CHD)患者慢性感染的其他细菌和病毒原因的患病率,以及抗热休克蛋白60的潜在作用(Hsp60)抗体对这些蛋白质的反应增加了CHD发生的风险。方法:80例冠心病患者和160名对照者。我们还比较了两组中的抗热休克蛋白60(Hsp60)抗体的水平。幽门螺杆菌感染和CagA的状态是通过血清学测定的,使用可商购的酶联免疫吸附测定(ELISA)和在我们实验室中开发的Western blotting方法。通过夹心ELISA确定针对Hsp60的全身抗体,使用针对Hsp60的多克隆抗体使聚苯乙烯板敏化并且使用市售人Hsp60作为抗原。结果:幽门螺杆菌感染的总体患病率在患者中为78.7%(n = 63),在对照组中为76.2%(n = 122)(P = 0.07)。受CagA阳性(CagA(+))幽门螺杆菌菌株感染的患者为71.4%(n = 45),而受感染的对照组为52.4%(P = 0.030,OR = 2.27)。与未感染的对照组相比,幽门螺杆菌阴性患者的全身IgG水平对Hsp60的升高(P <0.001),与CagA阳性感染的患者相比,CagA阳性感染的患者(P = 0.007)。结论:CagA阳性幽门螺杆菌感染可能与冠心病的发展有关。高水平的抗Hsp60抗体可能构成该疾病的标志物和/或伴随的致病因素。

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