摘要
目的 (1)从流行病学的角度观察人类巨细胞病毒 (HCMV)与 2型糖尿病 (T2 DM)动脉粥样硬化 (AS)的关系 ;(2 )了解血浆内皮素 (ET)、血清肿瘤坏死因子 (TNF- α)在 T2 DM AS发生、发展中的作用及 HCMV感染与 ET、TNF- α的关系。 方法 采用酶联免疫吸附法测定 T2 DM中有 AS患者 2 1例 ,无明显 AS患者 4 7例及正常对照组 2 0例血清 HCMV抗体 Ig M和 Ig G。用放免法测定血清 TNF- α和血浆 ET的浓度。 结果 (1) T2 DM患者的 HCMV感染率 [阳性率 Ig G为 93% (6 3/ 6 8)、Ig M为 4 6 %(31/ 6 8) ]高于正常人群 [阳性率 Ig G为 80 % (16 / 2 0 )、Ig M为 10 % (2 / 2 0 ) ],检测抗 HCMV- Ig M(抗 Ig M作为活动性感染或潜伏感染活化指标 )更有意义 (P<0 .0 1)。T2 DM患者 ET的浓度 (6 8.6 8± 17.12 ) ng/L 和 TNF- α的浓度 (1.79± 0 .4 3) μg/ L,也高于正常人 [(49.0 4± 14 .36 ) ng/ L、(1.32± 0 .4 1) μg/ L,P均 <0 .0 0 1]。 (2 ) T2 DM伴有 AS患者中 ,活动性或潜伏感染活化 HCMV感染率 (Ig M阳性率 5 7% )和血浆 ET[(86 .77± 15 .19) ng/ L]、血清 TNF- α[(2 .0 1± 0 .4 5 ) μg/ L]的水平高于不伴有 AS的 T2 DM患者 [Ig M阳性率 4 0 % ,ET为 (6 0 .5 9± 10 .4 9) ng/ L,TNF- α为 (1.6 8?
Objective To evaluate the association between cytomegalovirus (HCMV) infection and atherosclerosis (AS) and explore the possible role of endothelin (ET) and serum tumor necrosis factor(TNF α) in the pathogenesis of AS in diabetic patients and the relationship between HCMV infection and concentrations of ET and TNF α. Methods Blood samples were collected from 21 patients with AS of type 2 DM, 47 patients with non AS of type 2 DM and 20 controls. Special antibodies to HCMV (IgM,IgG) were measured by enzyme linked immunosorbent assay (ELISA) . The concentrations of serum TNF α and plasma ET were determined by RIA. Results (1) Type 2 diabetic patients, especially those with established AS, had a higher prevalence of active infection of HCMV. (2) The levels of plasma ET and serum TNF α in type 2 diabetic patients were higher than those in normal people. In the pathogenesis of AS in diabetic patients, the ET played more important role than the TNF α.(3) There was a significantly positive correlation between anti IgM to HCMV and the level of plasma ET in type 2 DM patients. It suggested that the injury of endothelium cell was related to the active infection of HCMV. Conclusion The study suggests that HCMV infection may be important in the pathogenesis of AS in type 2 diabetic patients and ET possibly plays an important role on the pathological course of AS.
出处
《中国糖尿病杂志》
CAS
CSCD
2002年第5期280-283,共4页
Chinese Journal of Diabetes
基金
浙江省教委科研基金资助 (2 0 0 0 3 14 )
