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作 者:王丽霞[1] 王光公[1] 黄彦生[1] 崔维[2] 智艳芳[3] 孔沈燕[4]
机构地区:[1]河南省人民医院二内科,郑州450003 [2]河南中医学院第三附属医院内科 [3]郑州大学第三附属医院检验科 [4]河南中医学院信息技术学院
出 处:《中国综合临床》2010年第2期149-152,共4页Clinical Medicine of China
基 金:河南省医学科技攻关计划项目(200704028)
摘 要:目的探讨冠心病患者血浆氧化还原状态的改变及其临床意义。方法采用心导管冠状动脉造影技术,将144例拟诊或可疑冠心病患者分为冠心病组59例,冠心病前期组53例,冠状动脉正常组32例。测定所有患者血浆还原型谷胱甘肽(GSH)与氧化型谷胱甘肽(GSSG)、氧化型低密度脂蛋白胆固醇(OX—LDL-C)和丙二醛(MDA)浓度。根据Nernst方程计算GSH/GSSG氧化还原电位,对GSH/GSSG氧化还原电位与oxLDL—C、冠状动脉狭窄程度行相关分析。结果随着冠状动脉狭窄程度增加(冠状动脉正常组、冠心病期纽、冠心病组),GSH、GSH/GSSG渐次减低[分别为(321.27±56.80)、(309.52±44.97)、(285.71±38.38)μmol/L;10.56±1.70,9.86±1.58,8.65±1.18;F值分别为29.49和26.18,P均〈0.05]。GsH/GSSG氧化还原电位渐次升高[(-142.23±1.35)、(-140.41±1.13)、(-136.61±1.21)mV;F=20.69,P〈0.05],向氧化方向偏移;氧化应激损伤产物oxLDL.C、MDA亦随着冠状动脉狭窄程度增加明显增加[分另4为(417.24±126.64)、(557.45±171.85)、(691.96±203.56)μg/L;(2.39±1.24)、(3.25±1.37)、(4.39±1.52)μmol/L;F值分别为26.28和25.39,P均〈0.05];GSH/GSSG氧化还原电位与oxLDL—C成显著正相关(r=0.798,P〈0.05)。结论氧化还原态失衡、向氧化方向偏移与冠状动脉粥样硬化的发生、发展可能有某种紧密的内在联系。Objective To explore the changes of plasma redox status in patients with coronary heart disease and its clinical implications. Methods One hundred and forty-four patients suspected with coronary heart disease were divided into three groups according to the resuhs of coronary arteriography. Coronary heart disease group ( n = 59, group A) , coronary atheroselerosis group ( n = 53, group B ) , and normal coronary group ( n = 32, group C ). The plasma glutathione (reduced form GSH and oxidized form GSSG), oxidized low density lipoprotein cholesterol( oxLDL-C) and malondialdehyde (MDA) were measured in all patients. The GSH/GSSG redox potential were calculated according to Nernst equation, and their correlation with the severity of coronary artery stenosis and oxLDL-C was analyzed. Results Along with the severity of coronary artery stenosis ( from Group C to Group A), GSH, GSH/ GSSG gradually reduced ( respectively ( 321.27±56.80) p, mol/L, ( 309.52±44.97 ) μmol/L, ( 285.71±38.38 ) μmol/L ; 10.56± 1.70,9.86 ± 1.58,8.65±1.18 ; F = 29.49 and 26.18, P 〈 0.05 ), whereas GSH/GSSG redox potential gradually increased ((-142.23±1.35) mV,( -140.41±1. 13) mV,( -136.61±1.21) mV;F= 20.69 ,P 〈 0.05 ) ) and redox status deviated to oxidization. The products of oxidative stress oxLDL-C and MDA also increased significantly along with the severity of coronary artery stenosis (respectively (417.24±126.64 ) μg/L, (557.45±171.85) μg/L, (691.96 ±203.56) μg/L; (2.39 ±1.24)μmol/L, (3.25±1.37) μmoL/L, (4.39±1. 52 ) μmol/L ; F = 26.28 and 25.39, P 〈 0.05 ). GSH/GSSG redox potential was positively correlated with oxLDL-C (r = 0. 798 ,P 〈 0.05 ). Conclusions The imbalance of plasma redox status and deviating to oxidization may be closely related with the development and progress of atherosclerosis.
关 键 词:冠心病 氧化还原态 谷胱甘肽 氧化型低密度脂蛋白胆固醇
分 类 号:R541.4[医药卫生—心血管疾病]
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