血浆氧化低密度脂蛋白测定的临床价值

目的 :观察脂代谢紊乱相关疾病患者血浆氧化低密度脂蛋白 (ox LDL)水平的变化规律 ,探讨血ox LDL测定的临床意义。方法 :素食 1d后禁食 12h采静脉血 ,用双抗体夹心ELISA法测定血浆ox LDL的水平。观察对象 30 2例 ,其中原发性高血压 (EH) 6 2例 ,EH并发冠心病 (CHD) 5 5例 ,糖尿病 (DM) 38例 ,DM并发CHD 4 9例 ,CHD 4 4例 ,肾病综合征 5 4例。正常对照者 111例。结果 :EH、DM、CHD、肾病综合征患者血ox LDL测定值均高于正常对照者 (P <0 .0 5 )。EH心室肥厚者ox LDL值明显高于非心室肥厚者 (P <0 .0 5 ) ;而并发CHD者明显高于未并发CHD者 (P <0 .0 5 )。DM并发CHD者明显高于未并发CHD者 (P <0 .0 5 ) ;但未并发CHD者血ox LDL仍高于正常对照者 ,差异有显著性意义 (P <0 .0 5 )。CHD中不稳定型心绞痛者明显高于稳定型心绞痛者 (P <0 .0 5 ) ;稳定型心绞痛者血ox LDL测定值与正常对照者差异无显著性意义 (P >0 .0 5 ) ;但冠状动脉 (冠脉 )显著狭窄者明显高于冠脉无显著狭窄者 (P <0 .0 5 ) ;冠脉无显著狭窄者血ox LDL测定值与正常对照者差异无显著性意义 (P >0 .0 5 )。结论 :EH及DM患者血ox LDL水平高于正常人 ,并发CHD后血ox LDL水平更高 ;CHD中不稳定型心绞痛患者血ox LDL水平高于正常人 ,ox LDL水平与冠     

急性冠状动脉综合征患者巨噬细胞集落刺激因子变化及其与氧化低密度脂蛋白关系

目的 :观察冠心病不同类型患者中巨噬细胞集落刺激因子 (MCSF)水平的变化及其与氧化低密度脂蛋白 (ox LDL)之间的关系 ,进一步探讨急性冠状动脉综合征预测的炎症指标。　　方法 :采用酶联免疫法检测急性冠状动脉综合征组 (n =46)、稳定性心绞痛组 (n =45)和正常对照组 (n =40 )血浆MCSF及ox LDL水平。　　结果 :3组血清MCSF、ox LDL的水平。血清MCSF和ox LDL水平在急性冠状动脉综合征组均显著高于稳定性心绞痛组和正常对照组 (P均 <0 0 0 1) ;稳定性心绞痛组血清MCSF和ox LDL水平均显著高于正常对照组 (P <0 0 5和 <0 0 0 1)。急性冠状动脉综合征组MCSF水平与ox LDL呈显著正相关 (r=0 571,P <0 0 0 1)。　　结论 :急性冠状动脉综合征患者血清MCSF和ox LDL水平均明显升高 ,且两者呈显著正相关。从临床角度提示MCSF和ox LDL可能相互作用 ,促进了急性冠状动脉综合征的发生。     

抗氧化低密度脂蛋白抗体的检测桨临床意义

目的 :探讨血清抗氧化低密度脂蛋白 (ox LDL)抗体的检测方法 ,并观察分析血清抗ox LDL抗体水平对冠状动脉粥样硬化斑块稳定性的评估价值。方法 :用酶联免疫吸附法 (ELISA法 )检测 10 0例冠心病患者 [17例急性心肌梗死 (AMI) ,41例不稳定型心绞痛 (UAP) ,42例稳定型心绞痛 (SAP) ]及 31例正常健康对照者 (对照组 )血清抗ox LDL抗体水平 ;并对 10 0例患者进行了 1年随访。结果 :血清抗ox LDL抗体水平在AMI组 (1.39± 0 .6 8)和UAP组 (1.35± 0 .6 2 )明显高于对照组 (0 .81± 0 .31,P <0 .0 1)和SAP组 (0 .94± 0 .36 ,P <0 .0 1) ;随访 1年后 ,有 2 2例患者发生心脏事件。血清抗ox LDL抗体水平在发病组 (1.6 7± 0 .6 9)明显高于病变稳定组(1.0 3± 0 .44 ,P <0 .0 1)。Logistic回归分析结果 :血清抗ox LDL抗体水平与患者预后关系密切 (P <0 .0 1)。结论 :血清抗ox LDL抗体水平与冠心病患者预后密切相关 ,可以作为冠状动脉粥样硬化斑块易损性的评估指标     

同型半胱氨酸及视黄醇结合蛋白检测在冠心病诊断中的应用

目的探讨冠心病(CHD)患者血清中同型半胱氨酸(Hcy)及视黄醇结合蛋白(RBP)的浓度,探讨其联合检测对CHD的诊疗的作用。方法在河南省中医院心病科住院怀疑为CHD并行冠状动脉造影的患者共358例,其中293例经冠脉造影确诊为CHD,65例为非CHD设为对照组。根据CHD的临床特点分为急性心肌梗死组75例、不稳定型心绞痛组123例、稳定型心绞痛组95例;检测各组患者的血清Hcy及RBP浓度,分析其在CHD不同阶段中的意义。结果急性心肌梗死组、不稳定型心绞痛组、稳定型心绞痛组与对照组的血清甘油三酯(TG)及总胆固醇(TC)水平无统计学差异(P>0.05),急性心肌梗死组血清Hcy、RBP水平高于对照组;不稳定型心绞痛组血清Hcy、RBP水平高于对照组;稳定型心绞痛组血清Hcy、RBP水平与对照组基本一个水平(P>0.05)。结论血清Hcy及RBP的水平与CHD的严重程度呈正相关。     

冠心病不同类型间C反应蛋白与氧化型低密度脂蛋白自身抗体的比较研究

目的 研究C反应蛋白(CRP)、氧化型低密度脂蛋白自身抗体(anti-oxLDL)与冠心病斑块稳定性的关系。方法 2003-07～12第一军医大学南方医院分别测定21例急性心肌梗死(AMI)、22例不稳定型心绞痛(UAP)、20例稳定型心绞痛(SAP)和21例对照者的CRP、oxLDL自身抗体和LDL自身抗体水平,比较各组中上述指标有无显著差异,并评估CRP分别与两种抗体水平的相关性。结果 急性冠状动脉综合征(ACS)组(包括AMI组和UAP组)的CRP明显高于SAP组和对照组(P<0.05);ACS组的oxLDL自身抗体水平明显高于SAP组和对照组(P<0.05);各组LDL自身抗体水平比较无显著差异(P>0.05);各组中CRP与oxLDL自身抗体水平是显著正相关(P<0.01),CRP与LDL自身抗体水平无显著相关性(P>0.05)。结论 对特异性抗原oxLDL的免疫反应,在导致斑块的不稳定及急性冠状动脉综合征的发生中可能起着重要的作用,oxLDL自身抗体水平可能是评价CHD斑块不稳定的重要特异性标志物。     

降钙素原与急性心肌梗死患者炎性反应的关系研究

目的分析降钙素原(PCT)与急性心肌梗死患者炎性反应的关系。方法选取2013年3月—2015年3月河南省驻马店市中心医院收治的急性心肌梗死患者50例作为急性心肌梗死组,稳定型心绞痛患者50例作为稳定型心绞痛组,冠状动脉造影检查正常者50例作为对照组。比较3组受试者一般资料(性别、年龄、BMI及吸烟情况等)、血清学指标〔总胆固醇(TC)、三酰甘油(TG)、低密度脂蛋白(LDL)、PCT、超敏C反应蛋白(hs-CRP)、中性粒细胞分数(NEU)及胱抑素C(Cys C)〕,并分析PCT与急性心肌梗死患者炎性反应的关系。结果 3组患者性别、年龄比较,差异无统计学意义(P0.05);急性心肌梗死组患者BMI高于稳定型心绞痛组及对照组,稳定型心绞痛组患者高于对照组(P0.05);急性心肌梗死组、稳定型心绞痛组患者吸烟率高于对照组(P0.05)。3组受试者TC、TG、LDL比较,差异无统计学意义(P0.05);急性心肌梗死组患者PCT、hs-CRP、NEU高于稳定型心绞痛组及对照组,稳定型心绞痛组患者高于对照组(P0.05);急性心肌梗死组、稳定型心绞痛组患者Cys C高于对照组(P0.05)。50岁稳定型心绞痛患者hs-CRP高于≤50岁患者(P0.05);50岁急性心肌梗死患者PCT高于≤50岁患者(P0.05)。Pearson相关分析结果显示,急性心肌梗死患者血清PCT水平与血清hs-CRP水平呈线性正相关(r=0.45,P0.05)。多因素logistic回归分析结果显示,PCT〔OR=4.02,95%CI(1.72,9.38)〕是急性心肌梗死的独立危险因素(P0.05)。结论 PCT与急性心肌梗死患者炎性反应相关,可用以评估急性心肌梗死患者炎性反应。     

C反应蛋白水平与冠心病的相关性研究

目的 探讨冠状动脉粥样硬化心脏病(CHD)与C反应蛋白(CRP)之间的关系.方法 测定50例正常对照人群和80例经冠状动脉造影证实为CHD患者血浆的CRP水平,其中单支病变30例、双支病变25例、三支病变25例;稳定型心绞痛31例、不稳定型心绞痛25例,急性心肌梗死24例.结果 CRP 水平在稳定型心绞痛组、不稳定型心绞痛组、急性心肌梗死组依次增高;稳定型心绞痛组(F=1.826,P＜0.05)、不稳定型心绞痛组(F=4.232,P＜0.01)及急性心肌梗死组(F=6.745,P＜0.01)的CRP水平均明显高于对照组,在冠心病组中,双支病变组(F=7.925,P＜0.01)以及三支病变组(F=9.467,P＜0.01)中CRP 水平也明显高于对照组.结论 CRP水平与冠心病和冠脉病变程度相关.     

冠心病患者血清可溶性Fas和TNF-α水平变化

目的探讨血清可溶性Fas(sFas)和TNF-α水平与冠心病(CHD)之间的关系.方法采用酶联免疫吸附双抗体夹心ABC-ELISA方法测定57例CHD患者(CHD组)和23例对照组受试者血清sFas和TNF-α水平.结果CHD患者血清sFas水平高于对照组(P＜0.01),TNF-α水平也高于对照组(P＜0.05),且CHD患者血清sFas水平与TNF-α成正相关(r=0.289,P=0.029).CHD患者中sFas水平不稳定型心绞痛(UA组)患者和急性心肌梗死(AMI组)患者高于稳定型心绞痛(SA组)患者(P＜0.05).结论高水平的血清sFas和TNF-α与CHD有关,可能通过细胞凋亡和炎症反应途径参与冠状动脉粥样硬化斑块的发生发展.     

冠心病患者病变程度与血清氧化修饰的低密度脂蛋白C-反应蛋白的关系

目的:探讨冠心病(CHD)患者病变程度与血清氧化修饰的低密度脂蛋白(ox—LDL)、C-反应蛋白(CRP)的关系及二指标之间的相互联系。方法:分别测定稳定型心绞痛(SAP)患者37例、急性冠状动脉综合征(ACS)患者55例、急性感染者6例、非感染非CHD患者(对照组)6例的血清ox-LDL、CRP值;计算各组ox—LDL、CRP的95％可信区间;比较各组中两指标有无显著差异并评估ACS组患者上述二指标的相关性。结果:①ox-LDL方面,ACS组显著高于其他各组(P<0.01);ACS组中AMI与UAP者相比差异无显著性意义(P>0.05)。②CRP方面,急性感染组、ACS组显著高于SAP组及对照组(P<0.05)。急性感染组、ACS组中AMI者显著高于ACS组中UAP者(P<0.05)。但急性感染组与ACS组中AMI者相比差异无显著性意义(P>0.05)。③ACS组中二指标呈显著正相关(r=0.64,P<0.05)。结论:血清ox-LDL、CRP升高水平与CHD患者病变程度相一致。脂质过氧化及局部炎症的联合作用是造成CHD患者病情恶化的主要原因。     

冠心病患者血浆血栓调节蛋白水平的测定及其临床意义

目的　测定冠心病患者血浆血栓调节蛋白 ( throm bom odulin,TM)水平并探讨其临床意义。方法　急性心肌梗死、不稳定型心绞痛、稳定型心绞痛三组患者及正常对照组 ,抽取血浆并用酶联免疫吸附试验测量其血浆 TM水平。结果　急性心肌梗死组、不稳定型心绞痛组、稳定型心绞痛组血浆 TM水平均高于正常对照组 ( P<0 .0 5 ) ;急性心肌梗死组与不稳定型心绞痛组间患者血浆 TM水平没有显著性差异 ( P>0 .0 5 ) ,但均高于稳定型心绞痛组和正常对照组 ( P<0 .0 5 )。结论　血浆可溶性 TM水平是反映冠心病患者内皮细胞损伤程度和范围的良好标志 ,对急性心肌梗死、不稳定型心绞痛、稳定型心绞痛的鉴别有一定的临床指导意义     

C反应蛋白与冠心病的相关性研究

目的：探讨C反应蛋白（CRP）与冠心病发生、发展的关系及其对预后的预测价值。方法：采用免疫透射比浊法测定136例入选对象CRP的含量。其中冠心病106例,包括稳定型心绞痛（SAP）组38例。不稳定型心绞痛（USAP）组39例、急性心肌梗死（AMI）组29例;正常对照组30例。结果：（1）冠心病患中CRP异常升高率为67．9％;（2）SAP组CRP有所升高,但无统计学意义;USAP和AMI组较正常对照组CRP明显升高（P均＜0．01）;（3）AMI的CRP水平较USAP组更高（P＜0．05）。结论：CRP升高是冠心病发生、发展的危险因素之一,它与冠心病严重程度呈正相关,对预后有一定的预测价值。     

Effects of lovastatin therapy on the level of low density lipoproteins and atherogenic potential of serum in patients with ischemic heart disease and hypercholesterolemia]

The serum atherogenic potential in patients with coronary heart disease (CHD) concurrent with hypercholesterolemia (LDL cholesterol more than 200 mg/dl), which is able to cause accumulation of intracellular cholesterol in cultured cells has been recently shown to be directly related to the level of total cholesterol and LDL cholesterol. The study was undertaken to examine how a lovastatin-induced decrease in LDL levels affects serum atherogenicity in patients with CHD and hypercholesterolemia. It was shown that the therapy of 22 patients with CHD and hypercholesterolemia led to a reduction in total and LDL cholesterol levels on an average by 24% and 32%, respectively. There were 3- and 1.5-2-fold decreases in circulatory immune complexes and the atherogenic potential, respectively. The findings suggest that the significant reduction in serum LDL cholesterol levels in patients with CHD concurrent with hypercholesterolemia who take hypolipidemic therapy is followed by a decrease in the atherogenic potential.     

急性心梗患者血清超敏C-反应蛋白与心梗指标的相关性分析

目的　探讨隐匿型冠心病患者及急性心肌梗死 (AMI)患者血清超敏CRP(hs -CRP)与其他心梗指标 ,包括磷酸肌酸激酶 (CK) ,磷酸肌酸激酶同工酶 (CK -MB) ,肌钙蛋白I(Tnl) ,B型钠尿肽 (BNP)等指标之间有无相关性。方法　采用微粒增强免疫透射比浊法定量检测了 5 5例健康体检者 ,5 0例隐匿型冠心病患者及4 6例急性心肌梗死患者的血清hs -CRP ,并同时检测其它几项心梗指标 ,并进行比较分析及相关分析。结果　 (1)隐匿型冠心病组、急性心肌梗死组血清超敏C -反应蛋白 (hs -CRP) ,CK ,CK -MB ,Tnl及BNP的结果与健康对照组相比较 ,均有显著性升高 (P <0 . 0 5 ) ;而冠心病患者中 ,急性心肌梗死组比隐匿型冠心病组的各项指标也有显著性的升高 (P <0. 0 5 )。 (2 )隐匿型冠心病患者及急性心梗患者的血清超敏C -反应蛋白与其他心梗指标进行相关性分析 ,结果表明血清hs-CRP与CK、CK -MB及Tnl之间具有良好的正相关 (P <0. 0 1) ,与BNP无明显相关性 ;CK、CK -MB、Tnl与BNP之间也具有良好的正相关 (P <0 .0 5 )。结论　血清超敏CRP(hs-CRP)可作为临床预测冠心病患者发生急性心梗危险性的指标 ,并可与CK、CK -MB、Tnl及BNP一起作为急性心梗的预后监测及疗效观察的指标。     

The low-throughput protein A adsorber: an immune modulatory device. Hypothesis for the mechanism of action in the treatment of rheumatoid arthritis

Abstract

To achieve specific removal of pathogenic antibodies (Ab) or immune complexes (IC), several adsorbers have been developed. We discuss the mode of action of low-throughput staphylococcal protein A (SPA) immunoadsorption. The SPA-based Prosorba apheresis is likely to modify some of the autoantibodies (autoAb) or IC. The low-throughput adsorber showed very limited adsorption capacity of circulating autoAb and/or circulating IC. Besides changes of humoral diagnostic parameters, cellular changes could be observed in the Prosorba-treated patients. These changes were rather similar to those that have been observed in a patient successfully treated with Ab against tumor necrosis factor α. We propose an adsorber-catalyzed conversion of small, tissue-penetrating, scarcely detectable, non-complement-binding, proinflammatory IgG-rheumatoid factor (RF)-based IC into the more readily phagocytosed species of IC: intermediate-sized, partially cryoprecipitable, non-tissue penetrating IC that are opsonized with complement. These IC are rather short-lived and could quickly be cleared by the body’s scavenging system.     

冠心病患者血清C反应蛋白和可溶性细胞间粘附分子1与肺炎衣原体感染的相关性

目的探讨冠心病患者血清炎症标志物C反应蛋白和可溶性细胞间粘附分子1水平的变化及其与肺炎衣原体感染的关系。方法采用酶联免疫吸附法检测60例急性心肌梗死、不稳定型心绞痛、陈旧性心肌梗死、稳定型心绞痛及40例对照者血清C反应蛋白、可溶性细胞间粘附分子1及肺炎衣原体抗体IgG、IgM。结果冠心病组肺炎衣原体IgG阳性率和浓度均高于对照组(P<0.01),冠心病各组之间肺炎衣原体IgG和IgM阳性率差异无显著性(P>0.05),急性心肌梗死组肺炎衣原体IgG浓度高于陈旧性心肌梗死组、不稳定型心绞痛组和稳定型心绞痛组(P<0.05);冠心病组C反应蛋白、可溶性细胞间粘附分子1水平高于对照组(P<0.01),急性心肌梗死组C反应蛋白、可溶性细胞间粘附分子1水平高于不稳定型心绞痛组、陈旧性心肌梗死组和稳定型心绞痛组(P<0.01),不稳定型心绞痛组C反应蛋白、可溶性细胞间粘附分子1水平高于稳定型心绞痛组(P<0.05);肺炎衣原体IgG浓度、C反应蛋白、可溶性细胞间粘附分子1之间有很好的相关性(P<0.05)。结论炎症标志物水平变化在一定程度上反映了冠心病患者病情变化,肺炎衣原体感染与冠心病有关,炎症、感染可能共同参与了冠心病的发生发展。     

Plasma oxidized LDL: a predictor for acute myocardial infarction?

OBJECTIVES: Oxidized LDL has been attributed a key role in the development of atherosclerosis. Previous studies have demonstrated increased plasma levels of oxidized LDL in patients with established coronary artery disease. The aim of the present study was to investigate if plasma oxidized LDL also predicts risk for development of coronary heart disease (CHD). DESIGN: We used a nested case-control design to study the association between plasma levels of oxidized LDL and risk for development of acute myocardial infarction (AMI) and/or death by CHD. SUBJECTS: Oxidized LDL was analysed by ELISA in cases (n = 26), controls (n = 26) and controls with LDL cholesterol >5.0 mmol L-1 (n = 26). RESULTS: Oxidized LDL correlated with total plasma and LDL cholesterol in both cases (r = 0.72, P < 0.01, r = 0.69, P < 0.01, respectively) and controls (r = 0.71, P < 0.01, r = 0.77, P < 0.01, respectively). The oxidized LDL/plasma cholesterol ratio was higher amongst cases (13.5, range 10.7-19.8) than in controls (12.6, range 9.5-15.8, P < 0.05) and hypercholesterolaemic controls (12.2, range 8.0-16.0, P < 0.01). CONCLUSIONS: These findings identify high plasma oxidized LDL/total cholesterol ratio as a possible indicator of increased risk for AMI.     

脑梗死并高脂血症患者血浆P-选择素水平的变化及降脂干预

为研究动脉粥样硬化性脑梗死患者动脉粥样硬化病变的炎症反应以及降脂干预对其产生的影响 ,以酶标多克隆抗体夹心法及硝酸还原酶比色法测定 36例健康对照组、30例急性脑梗死并高胆固醇血症组及 2 8例急性脑梗死并高甘油三酯血症组患者应用辛伐他汀治疗前后血浆P 选择素、氧化型低密度脂蛋白和血清一氧化氮的水平。结果发现 ,两组脑梗死患者血浆P 选择素和氧化型低密度脂蛋白水平较对照组明显增高 ,血清一氧化氮水平明显减低。急性脑梗死并高胆固醇血症组患者的血浆P 选择素水平与血浆氧化型低密度脂蛋白和低密度脂蛋白水平呈显著正相关 ,与血清一氧化氮水平呈显著负相关 ;急性脑梗死并高甘油三酯血症组患者的血浆P 选择素水平与氧化型低密度脂蛋白和甘油三酯水平呈显著正相关。辛伐他汀治疗 6周后 ,两组脑梗死患者的血浆P 选择素和氧化型低密度脂蛋白水平明显减低 ,血清一氧化氮水平明显回升。以上提示 ,急性脑梗死并高胆固醇血症和高甘油三酯血症患者均存在着动脉粥样硬化病变的炎症反应 ,其炎症反应的发展与血浆P 选择素水平的变化及血浆氧化型低密度脂蛋白、低密度脂蛋白、甘油三酯和血清一氧化氮水平的变化相一致 ,降脂干预可阻止动脉粥样硬化病变炎症反应的发展     

Oxidized LDL immune complexes and coronary artery calcification in type 1 diabetes

ObjectiveOxidized LDL (oxLDL) and oxLDL antibodies form immune complexes (IC) that reflect essential components in the development of atherosclerosis: dyslipidemia, oxidative stress and induction of a pro-inflammatory humoral immune response. We measured oxLDL in IC (oxLDL-IC) isolated from patients with type 1 diabetes to assess the relationship between oxLDL-IC and coronary artery calcification (CAC).MethodsOxLDL was measured in IC isolated from baseline samples from a subgroup of 476 patients of the Diabetes Control and Complications Trial (DCCT). CAC was determined by computed tomography (CT) 11–20 years later. Multivariable log-binomial regression models were used to estimate the risk ratios associated with having a high CAC score with an increase of 1 standard deviation (SD) of the natural logarithm of oxLDL-IC.ResultsMultivariable regression models indicate that a 1 SD increase in the levels of oxLDL-IC was associated with a 37% increase in the risk of having high CAC score (RR = 1.36; 95% CI: 1.12–1.67) at follow-up after adjustment for DCCT treatment group, retinopathy/AER groups, gender and CT scanning site as well as baseline age, diabetes duration and HbA1C %. Further adjustment for smoking status, blood pressure and LDL resulted in a risk ratio of 1.23 (95% CI: 1.01–1.50) which remained statistically significant indicating that baseline oxLDL-IC is independently associated with the development of CAC.DiscussionIncreased levels of oxLDL-IC are associated with the development of coronary calcification. This observation reinforces previously published clinical and experimental data demonstrating that oxLD-IC has pro-inflammatory and proatherogenic properties.     

Study on changes of heme oxygenase-1 expression in patients with coronary heart disease

BACKGROUND: Heme oxygenase (HO) is a rate-limiting enzyme of endogenetic carbon monoxide (CO) that degrades heme into carbon monoxide, bilirubin, and iron. These products have important physiologic effects: bilirubin is a potent antioxidant that can act against ischemia/reperfusion injury; there is a negative correlation between the content of HO-1 and the incidence of coronary heart disease (CHD). HYPOTHESIS: This study was undertaken to investigate the changes of HO-1 in patients with CHD. METHODS: Thirty-five patients with acute myocardial infarction (AMI), 40 patients with unstable angina pectoris (UAP, diagnosed by coronary angiography), and 30 patients with stable angina pectoris (AP, diagnosed by coronary angiography) were selected for the study; another 30 patients with normal coronary artery (diagnosed by coronary angiography) were selected as controls. The levels of HO-1 protein expression in monocyte and lymphocyte in the subjects were tested by immunohistochemistry and western blot. Computer picture analyzing systems were also used to measure the levels of HO-1 protein expression. RESULTS: Heme oxygenase-1 protein is located in cell plasma. The levels of HO-1 protein expression in patients with CHD were significantly higher than in those without CHD (p < 0.01). There were significant differences of HO-1 expression among the three groups of patients with CHD. The group with AMI was the highest, followed by the group with UAP and finally by the group with AP. CONCLUSIONS: There is a higher expression of HO-1 in patients with CHD. The levels of HO-1 protein are associated with the severity of CHD.     

An increased number of very-low-density lipoprotein particles is strongly associated with coronary heart disease in Japanese men,independently of intermediate-density lipoprotein or low-density lipoprotein

BACKGROUND: Japanese patients with coronary heart disease (CHD) usually have slightly elevated triglyceride levels but virtually normal low-density lipoprotein (LDL)-cholesterol levels. DESIGN: Case-control study. METHODS: To explore the atherogenecity of mild hypertriglyceridemia, we measured very-low-density lipoprotein (VLDL) composition and apolipoprotein (apo) B in VLDL, intermediate-density lipoprotein (IDL), light LDL and dense LDL fractions separated by ultracentrifugation in 61 men with angiographically proven CHD and in 69 men without CHD. Apo B, E, C1 and C3 in VLDL were measured by enzyme-linked immunosorbent assay. RESULTS: Although total- and LDL-cholesterol levels were similar in CHD and control participants, triglyceride levels were significantly higher and high-density lipoprotein (HDL)-cholesterol levels were lower in CHD patients. Triglyceride, cholesterol and apo C1 and E levels in VLDL were two-fold higher and VLDL-apo B level was three-fold higher in CHD than control patients. IDL-triglyceride levels were significantly elevated in CHD, but IDL-cholesterol level was not. Apo B levels of the dense LDL fraction were significantly elevated in CHD groups, but those of the light LDL fraction were not. These differences were constant when triglyceride levels matched between both groups. Multiple logistic regression analysis revealed that the VLDL-apo B and VLDL-apo C1 levels were significantly associated with the incidence of CHD independent of the plasma triglyceride, HDL-cholesterol or apo B levels in dense LDL. CONCLUSION: These results suggest that an increased number of VLDL particles is strongly associated with CHD, independently of traditional risk factors or newly recognized atherogenic lipoproteins, such as IDL or small, dense LDL, in Japanese men.