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经皮冠状动脉介入导致ACS患者脂蛋白(a)和氧化脂蛋白(a)水平升高机制研究 被引量:5

Percutaneous coronary intervention results in increases of lipoprotein(a) and oxidized lipoprotein(a) in patients with acute coronary syndrome
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摘要 目的 研究PCI治疗对ACS患者脂蛋白(a)[Lp(a)]、氧化脂蛋白(a)[ox-Lp(a)]水平的影响和机制.方法 收集75例ACS患者PCI前、后、24 h、2 d、3 d和6个月后各时间点,以及29例未行PCI术的对照组冠状动脉造影前、后血标本;采用ELISA法测定Lp(a)、OX-Lp(a)、Lp(a)免疫复合物[Lp(a)-IC]和自身抗体水平;冠状动脉造影确认病变程度.手术前后各指标的变化采用配对t检验;PCI前、后不同时间点Lp(a)、ox-Lp(a)相对变化值间比较采用方差分析;Lp(a)与ox-Lp(a)、冠状动脉病变程度与Lp(a)、ox-Lp(a)变化值间相关性采用直线相关分析.结果 PCI术后Lp(a)水平[233.10(152.86~328.79)mg/L]高于术前[202.05(106.15~271.42)mg/L],差异有统计学意义(数据经对数转换后分析,t=6.81,P〈0.01);PCI术后ox-Lp(a)[19.05(10.98~31.80)mg/L]与术前[10.51(4.98~17.97)mg/L]相比升高,差异有统计学意义(数据经对数转换后分析,t=13.22,P〈0.01);PCI术后Lp(a)-IC[2.72(1.60~4.91)AU]与术前[2.11(1.04~3.97)AU]相比升高,差异有统计学意义(数据经对数转换后分析,t=3.34,P〈0.01);而PCI术后自身抗体(A=0.81±0.33)与术前(A=0.72±0.28)相比降低,差异有统计学意义(t=5.58,P〈0.01).PCI前(r=0.66,P〈0.01)、后(r=0.62,P〈0.01)ox-Lp(a)水平均与Lp(a)高度相关.PCI导致Lp(a)、ox-Lp(a)水平急速升高,24 h内快速下降,2~3 d内接近术前水平.Lp(a)、ox-Lp(a)变化值均与冠状动脉病变程度呈正相关.对照组造影前后Lp(a)、ox-Lp(a)、Lp(a)-IC和Lp(a)自身抗体水平均无变化.结论 PCI导致ACS患者Lp(a)、ox-Lp(a)水平升高,其增加值与冠状动脉病变程度相关. Objective To investigate possible changes of lipoprotein(a) [Lp(a)] and oxidized Lp (a) [ox-Lp(a) ] levels after PCI and it mechanisms. Methods Bloods were selected from 75 patients with ACS undergoing PCI, and at 24 hours, 2 and 3 days, and 6 months pre-and post-PCI treatment, and from 29 control patients pre-and post-coronary angiography without undergoing PCI. The levels of Lp(a) , ox-Lp(a) , Lp(a) immune complexes (IC) and its autoantibody were determined by ELISA. The extents of CAD were determined by coronary angiography. The differences of variants pre-and post-operations were analyzed by paired samples t test. The differences of levels of Lp(a) and ox-Lp(a) among time points after PCI were analyzed by ANOVA. Correlations between Lp(a) and ox-Lp(a) , and between angiographic variables and Lp(a), ox-Lp(a) levels were calculated. Results Compared to pre-PCI, Lp(a) [233.10 (152.86-328.79) mg/L vs 202.05 (106.15-271.42) mg/L, t=6. 81, P〈0.01], ox-Lp(a) [19.05 (10.98-31.80) mg/L vs 10. 51 (4.98-17.97) μg/ml, t = 13. 22,P 〈0. 01] and Lp(a)-IC [2.72 (1.604.91) AU vs 2. 11 (1.04-3. 97) AU, t = 3. 34, P 〈 0. 01 ] levels significantly increased immediately in post-PCI, while its antoantibody levels significantly decreased (A = 0. 81 ± 0. 33 vs A = 0. 72 ± 0. 28, t = 5.58, P 〈 0. 01). Strong correlations were noted between levels of ox-Lp( a) and Lp( a) both in pre-PCI (r =0. 66, P 〈0.01) and post-PCI (r = 0. 62, P 〈0. 01). PCI resulted in rapidrise of Lp(a) and ox-Lp(a) levels and then decreased quickly in 24 hours, returned to baseline in 2-3 days. The changes of Lp(a) and ox-Lp(a) levels in pre-and post-PCI were positively related with severity of ACS. In contrast, in the angiography-only control group, no significant changes were noted in Lp(a) , ox-Lp(a) , Lp(a)-IC and Lp(a) autoantibodies levels between the pre-and post-angiography samples. Conclusion PCI results in acute plasma acute increases of levels of Lp(a) and ox-Lp(a) ,and the changes are related with lesion severity of the coronary artery.
出处 《中华检验医学杂志》 CAS CSCD 北大核心 2010年第7期645-648,共4页 Chinese Journal of Laboratory Medicine
基金 国家自然科学基金资助项目(30872411、30471649、30950100) 江苏省医学重点人才资助项目
关键词 急性冠状动脉综合征 脂蛋白(a) 自身抗体 Acute coronary syndrome Lipoprotein(a) Autoantibodies
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参考文献11

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共引文献34

同被引文献100

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