自发性脑出血患者肺炎衣原体感染的研究

目的:探讨自发性脑出血与肺炎衣原体感染的关系。方法:检测9例自发性脑出血患者的外周血肺炎衣原体IgG、IgM抗体(微量免疫荧光法)、病变脑动脉组织肺炎衣原体DNA(PCR法)及肺炎衣原体主要外膜蛋白的表达(Western blot法)。 结果:患者IgG抗体的几何平均滴度(190.3±3.2)、IgG抗体阳性率(85.2%)、IgM抗体阳性率(30.8%)均显著高于对照组(分别为48.1±2.0、48.1%、4.8%,P<0.01,P<0.05,P<0.01);病变脑动脉中肺炎衣原体DNA检出率为88.9%(8/9);所有患者病变脑动脉都有肺炎衣原体主要外膜蛋白的表达。结论:自发性脑出血患者存在肺炎衣原体感染的证据,自发性脑出血与肺炎衣原体感染可能有关。

Study on chlamydia pneumoniae infection in the patients with spontaneous brain bleeding

AIM: To study the relationship between Chlamydia pneumoniae (Cpn) and spontaneous brain bleeding. METHODS: The IgG and IgM antibody titers to Cpn in peripheral blood from 9 patients of spontaneous brain bleeding were detected by microimmunofluorescence antibody technique (MIF). The Cpn DNA of arteries in brain bleeding region from these cases was detected by polymerase chain reaction (PCR). The Cpn major outer membrane protein (MOMP) expression of arteries in brain bleeding region from these cases were tested by Western blot. RESULTS: All the geometric average titer to IgG antibody (190.3±3.2) and the positive rate of IgG antibody (85.2%) and IgM antibody (30.8%) were significantly higher in spontaneous brain bleeding patients than those (48.1±2.0, 48.1% and 4.8%) in control (P<0.01,P<0.05,P<0.01). The positive rate of the Cpn DNA was 88.9%(8/9) and the Cpn MOMP expression was found in the arteries of brain bleeding region from all 9 cases. CONCLUSION: Spontaneous brain bleeding may be associated with the chlamydia pneumoniae infection.