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Association between Plasma Homocysteine Concentrations and Carotid Intima-Media Thickness in Patients with Coronary Artery Disease

机译:冠状动脉疾病患者血浆同型半胱氨酸浓度与颈动脉内膜中层厚度的关系

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Introduction: Although homocysteine has atherogenic and prothrombotic properties, the conflicting results from studies made its role in coronary artery disease unclear. Objectives: The aim of this study was to evaluate the association between plasma levels of homocysteine and carotid atherosclerosis in patients with angiographically confirmed coronary artery disease. Methods: This prospective study comprised 201 consecutive patients with angiographically confirmed coronary artery disease (CAD) that were divided in three groups considering the presence of vascular affection: 126 patients with monovascular disease (MONO group), 42 patients with bivascular disease (BI group) and 33 patients with trivascular disease (TRI group). The three groups were compared with a control group formed by 41 apparently healthy subjects. We measured serum lipid profile and serum homocysteine levels in all patients. The carotid intima-media thickness (carotid IMT) was determined by ultrasound imaging according to Manheim consensus. Results: Patients from TRI group had significantly higher levels of total cholesterol, triglycerides and LDL-cholesterol compared with patients from BI group, MONO group and CONTROL group (all p<0.001). We observed statistically significant differences between mean values of HC between TRI and BI groups (p = 0.03), TRI and MONO groups (p <0.001) and BI and MONO groups (p = 0.011). We observed a moderate significantly correlation between carotid IMT and plasma levels of homocysteine (r=0.409,p<0.001). Conclusion: The study showed an association between plasma homocysteine levels and carotid IMT in patients with angiographically confirmed coronary artery disease. Future studies are necessary to apprehend the effects of homocysteinemia on vascular endothelium.
机译:简介:尽管同型半胱氨酸具有动脉粥样硬化和促血栓形成的特性,但研究结果相互矛盾,尚不清楚其在冠状动脉疾病中的作用。目的:本研究旨在评估经血管造影确诊的冠心病患者血浆同型半胱氨酸水平与颈动脉粥样硬化之间的关系。方法:这项前瞻性研究包括201例连续经血管造影证实的冠状动脉疾病(CAD)的患者,将其分为三组,考虑到存在血管病变的情况:126例单血管疾病(MONO组),42例双血管疾病(BI组) 33例三血管疾病患者(TRI组)。将这三组与由41名显然健康的受试者组成的对照组进行比较。我们测量了所有患者的血脂水平和高半胱氨酸水平。根据Manheim共识,通过超声成像确定颈动脉内膜中层厚度(颈动脉IMT)。结果:TRI组患者的总胆固醇,甘油三酸酯和LDL-胆固醇水平显着高于BI组,MONO组和对照组的患者(均p <0.001)。我们观察到TRI和BI组(p = 0.03),TRI和MONO组(p <0.001)以及BI和MONO组(p = 0.011)之间HC平均值之间的统计学差异。我们观察到颈动脉IMT与血浆同型半胱氨酸水平之间存在中等程度的显着相关性(r = 0.409,p <0.001)。结论:该研究表明,经血管造影确诊的冠心病患者血浆同型半胱氨酸水平与颈动脉IMT之间存在关联。今后有必要了解高半胱氨酸血症对血管内皮的影响。

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