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1.
脑血管病脂蛋白(a)和其它脂类水平的研究   总被引:5,自引:0,他引:5  
目的:探讨脑血管病患者脂脂蛋白(a)[Lp(a)]和其它脂类水平与脑血管病的关系。方法:采用试剂盒检测55例脑出血,57例脑梗塞患者Lp(a)水平及胆固醇(Ch)、甘三酯(TG)、高密度脂蛋白(HDL)、载脂蛋白A-I(Apo-A-I)和载脂蛋白B(ApoB),并与85例健康对照者作比较,结果:脑梗塞组Lp(a),Apo(B)及TG呈显著正相关,而脑出血组Lp(a)与Ch呈显著负相关,脑梗塞组Lp(a)、TG异常检出率分别高达59.65%、52.63%,脑出血组HDL异常检出率高达50.91%,结论Lp(a)和其它脂类代谢异常是脑血管病患者最常见和重要的致病因素之一。  相似文献   

2.
脂蛋白(a)与年轻人脑梗死   总被引:12,自引:1,他引:12       下载免费PDF全文
目的 研究脂蛋白(a)与年轻人脑梗死发病的关系。方法 检测90例发病年龄16—45岁脑梗死患者脂蛋白(a)与甘油三酯、总胆固醇、高密度脂蛋白胆固醇、低密度脂蛋白胆固醇、载脂蛋白A—I、载脂蛋白B等,同时分析患者的高血压、吸烟、饮酒、卒中家族史等因素。结果 与对照组相比,脑梗死患者的脂蛋白(a)无显著性增高。而甘油三酯、载脂蛋白B在脑梗死患者中却显著增高。相关分析显示,脂蛋白(a)与血清总胆固醇和低密度脂蛋白胆固醇正相关(P<0.01)。logistic回归分析示高脂蛋白(a)的相对危险度比值比(OR)为0.74,95%CI:0.27一1.98。高甘油三酯对于脑梗死的OR值为3.57,95%CI:1.34—9.49;高血压对于脑梗死的OR值为8.18,95%CI:2.54—26.33;心脏病对于脑梗死的OR值为8.5l,其95%CI:2.27—31.85;吸烟的OR值为3.2l,95%CI:1.27—8.13。结论 脂蛋白(a)可能不是年轻人脑梗死的危险因素。高甘油三酯、高血压、心脏病和吸烟是年轻人脑梗死重要的危险因素。  相似文献   

3.
目的:研究急性脑梗塞患者脂蛋白(a)和出凝血初筛试验各指标变化特点,并分析二者的相关性。方法:对20例急性脑梗塞患者和20例健康人进行脂蛋白(a)[Lp(a)]、部分凝血酶时间(APTT)、凝血酶原时间(PT)、凝血酶时间(TT)、纤维蛋白原(Fib)的测定。结果:急性脑梗塞(CI)患者的脂蛋白(a)[Lp(a)]浓度较对照组显著升高(P〉0.05),部分凝血酶时间(APIT)、凝血酶原时间(PT)、凝血酶时间(TT)较对照组无明显差异(P〈0.01),纤维蛋白原(Fib)水平较对照组升高。脂蛋白(a)[Lp(a)]和凝血时间无明显相关性。结论:脂蛋白(a)可作为急性脑梗塞发病的重要危险因素。纤维蛋白原水平升高与CI的发生有明显相关性。部分凝血酶时间(APTT)、凝血酶原时间(PT)、凝血酶时间(TT)与CI的发生无明显相关性。  相似文献   

4.
目的 研究充血性心力衰竭 (CHF)患者血清甲状腺激素与Lp(a)水平变化的关系。方法 以 5 0例正常人为对照 ,15 8例CHF患者按心衰病程分为病程 <1年组和病程≥ 1年组。测定血清FT3、FT4 、TSH、Lp(a)水平。结果 心衰病程 <1年者FT3低于正常人 (P <0 0 5 ) ,Lp(a)高于正常人 (P <0 0 5 )。心衰病程≥ 1年组 ,其血清FT3明显低于正常人组 (P <0 0 5 ) ,亦低于CHF病程 <1年组 (P <0 0 5 ) ;其血清Lp(a)水平高于正常人组 (P <0 0 1) ,亦高于心衰病程 <1年组 (P <0 0 5 )。结论 心衰患者Lp(a)水平升高 ,随着心衰病程延长 ,其血清Lp(a)水平逐渐升高 ,血清活性甲状腺激素FT3水平逐渐降低。推测血清活性甲状腺激素FT3水平下降 ,影响了Lp(a)的代谢 ,是导致心衰患者Lp(a)水平升高的原因之一。  相似文献   

5.
作者检测44例有冠心病(CHD)家族史儿童的血清脂蛋白(a)[Lp(a)]浓度,并将其分为一级亲属组、二级亲属组再分别与无CHD家族史儿童组进行比较。结果显示:前者的Lp(a)均值比后者明显为高(P<0.01);两者的分布频率也有显著性差异(P<0.01)。而一级亲属组与二级亲属组相比则无差别。此外还对载脂蛋白(Apo AI、Apo B)、年龄及性别与Lp(a)浓度的关系进行了观察,结果均无相关性。因而作者认为,高Lp(a)个体与CHD家族史密切相关,对CHD的防治应从儿童期开始。  相似文献   

6.
马丽 《实用预防医学》2007,14(4):1034-1036
目的探讨脑梗死患者血清中抗心磷脂抗体(ACA)、D-二聚体(D-Dimer)、脂蛋白a(Lp(a))含量变化与脑梗死的关系和意义。方法采用ELISA法和免疫比浊法测定脑梗死患者63例,疾病对照组65例,正常对照组38例血清中ACA,D-Dimer,Lp(a)的变化特点。结果脑梗死组ACA及ACA-IgG、D-Dimer,Lp(a)含量高于正常对照组(P<0.01)。脑梗死组ACA-IgM与疾病对照组比较差异无显著性意义(P>0.05),疾病对照组ACA及ACA-IgG、ACA-IgM、Lp(a)与正常对照组比较差异无显著性意义(P>0.05)。大面积脑梗死患者的D-Dimer,Lp(a)含量高于小面积脑梗死组(P<0.01,P<0.05)。ACA阳性组D-Dimer,Lp(a)的含量高于ACA阴性组(P<0.01)。结论血中ACA,D-Dimer,Lp(a)的含量变化与脑梗死的发生、发展有密切关系,是脑梗死的重要危险因素,可作为脑梗死诊断、治疗、预后判断的重要实验室指标。  相似文献   

7.
目的探讨脂蛋白(a)[Lp(a)]对大鼠肾小球系膜细胞(GMCs)增生及细胞间黏附因子-1(ICAM-1)表达的影响。方法分离Lp(a),培养GMCs,在不同时间(12、24、48、60、72h),应用不同剂量(1.25μg/L、2.5μg/L、5.0μg/L、10μg/L、20μg/L)Lp(a)处理GMCs,采用MTT法测定GMCs增生率,免疫组化法检测GMCs的增生细胞核抗原(PCNA)阳性表达率,酶联免疫法检测培养液上清的ICAM-1浓度,并与脂多糖组、对照组比较。结果与LPS组、对照组比较,随着Lp(a)剂量的增加,GMCs的MTT、PC—NA阳性表达率、上清ICAM-1浓度呈增加趋势,明显高于对照组,但低于LPS组,在Lp(a)2.5μg/L、5.0μg/L其作用达到高峰,大剂量时出现下降,剂量越大,下降越明显,Lp(a)10.0μg/L低于对照组,20.0μg/L则明显低于对照组。随着处理时间的延长,GMCs的MTT、PCNA阳性表达率、上清ICAM-1浓度呈增加趋势,但随着剂量的增加,依次于72、60、48h逐渐出现下降。GMCs上清的ICAM-1浓度与MTT和PCNA阳性表达率呈正相关。结论Lp(a)能明显影响GMCs的增生,作用呈剂量依赖性和时间依赖性,小剂量时刺激GMCs的增生,大剂量则表现为细胞毒作用。Lp(a)明显影响大鼠GMCs的ICAM-1表达,GMCs上清的ICAM-1浓度与MTT和PCNA阳性表达率呈正相关。提示Lp(a)对GMcs的作用可能与ICAM-1有关。  相似文献   

8.
目的通过研究颈动脉硬化患者人类巨细胞病毒(HCMV)感染状态与脂蛋白a(Lp(a))、载脂蛋白A1(ApoA1)、载脂蛋白B(ApoB)及ApoB/ApoA1比值的关系,探讨HCMV致动脉硬化的机制。方法利用实时荧光定量PCR技术检测研究对象外周血白细胞中HCMV DNA拷贝数,并利用ELISA技术检测血清中HCMV IgM,同时利用生化分析技术检测Lp(a)、ApoA1、ApoB含量并计算ApoB/ApoA1比值。结果在颈动脉硬化阳性组中,HCMV阳性率为54.7%(35/64),对照组HCMV阳性率为25.0%(5/20),差异有统计学意义(P<0.05);颈动脉硬化阳性组中的Lp(a)、ApoB及ApoB/ApoA1比值均显著高于颈动脉硬化阴性组(0.46±0.31 vs 0.30±0.24,0.77±0.22 vs 0.66±0.18,0.62±0.21 vs 0.51±0.17,P均<0.05),颈动脉硬化阳性组中的ApoA1明显低于颈动脉硬化阴性组(1.35±0.42 vs 1.58±0.41,P<0.05)。在颈动脉硬化阴性组中,HCMV阳性者及HCMV阴性者其ApoA1及ApoB含量差异无统计学意义(1.56±0.44 vs 1.66±0.34,0.67±0.21 vs 0.64±0.10,P均>0.05)。在颈动脉硬化阳性组中,HCMV阳性者血清ApoA1含量明显低于HCMV阴性者(1.27±0.33 vs 1.46±0.34,P<0.05),而ApoB在HCMV阳性者及阴性者中差异无统计学意义(0.78±0.19 vs 0.76±0.15,P>0.05);不论颈动脉硬化阳性组还是对照组,HCMV阳性者的Lp(a)及ApoB/ApoA1比值均显著高于HCMV阴性者(0.59±0.20 vs 0.29±0.17,0.67±0.21 vs 0.56±0.17,0.54±0.36 vs 0.23±0.12,0.58±0.16 vs 0.40±0.14,P均<0.05)。结论 HCMV感染可能通过改变宿主脂类代谢引起或促进动脉硬化的发病过程。  相似文献   

9.
Objectives: Plasma lipoprotein(a) [Lp(a)] is a risk factor for cardiovascular disease. The purpose of this study is to evaluate the correlation of anthropometric measures, lipids and lipoprotein profiles and serum Lp(a) values among children in Taiwan. We will attempt to find parameters that will be able to predict Lp(a) levels in children. Design and methods: After a probability-proportional-to size, multi-stages sampling procedure, we randomly sampled 1500 schoolchildren from 10 schools in Taipei city. Anthropometric measures including body weight, body height, waist and hip circumference and skinfolds were measured. We used standard methods to measure serum total cholesterol (CHOL), triglycerides (TG), high density lipoprotein-cholesterol (HDL-C), apolipoprotein A1 and B (ApoA1 and ApoB) and Lp(a) levels. We also calculated low density lipoprotein-cholesterol (LDL-C) and CHOL/HDL-C ratio (TCHR) by formula. Results: We sampled 1283 children (635 boys and 648 girls) with a mean age of 13.3 years (from 12 to 16 years) in this study. The mean and medium serum Lp(a) levels were 16.8 and 8.8 mg/dl among boys and 20.8 and 11.9 mg/dl among girls. Children in the highest quintile of Lp(a) (mean = 49.6 and 58.6 mg/dl for boys and girls, respectively) had higher CHOL, LDL-C, ApoB levels and TCHR than children in the lowest quintile (mean = 3.1 and 3.7 mg/dl for boys and girls, respectively). Lipids and lipoprotein profiles, such as CHOL, LDL-C, Apo-B and TCHR were positively correlated with Lp(a) levels in both genders. Furthermore, the children with Lp(a) levels greater than or equal to 30 mg/dl had higher CHOL, LDL-C and Apo-B levels when compared to children with Lp(a) levels less than 30 mg/dl. After adjusting for age, cigarette smoking, alcohol drinking, puberty development and heart rates, LDL-C and ApoB levels were significantly positively associated with Lp(a) levels while ApoA1 was negatively associated among boys. Among girls, only Apo-B was significantly positively associated with Lp(a) and TG was negatively associated with Lp(a) levels. Most importantly, none of the anthropometric measures were significantly correlated with Lp(a) levels. Conclusions: From this study, we found that lipids and lipoproteins profiles, rather than degree of adiposity as reflected by anthropometric measures, are significantly associated with serum Lp(a) levels among school children.  相似文献   

10.
脂蛋白(a)与早发脑梗塞   总被引:1,自引:0,他引:1  
采用1∶1配比的病例-对照研究方法,探讨脂蛋白(a)与早发脑梗塞的病因学联系。单因素分析结果显示:高脂蛋白(a)(>30mg/dl)者患病危险性为正常者的3.5倍。多元逐步回归分析结果表明,血LP(a)、吸烟年数、平均动脉压、LDL-C、Apo-B是早发脑梗塞的主要危险因素,而Apo-A1则是其保护因素。  相似文献   

11.
Objectives. To determine the distribution and determinants of lipoprotein (a) (Lp(a)) concentration among Nigerians.

Methods. Subjects were recruited from civil servants living in Benin City, Nigeria. The height and weight of the individuals were measured and their use of alcohol and tobacco estimated by questionnaire. Laboratory analyses of blood samples involved Lp(a), total cholesterol (TC), high‐density lipoprotein (HDLC), HDL2c, HDL3c, triglyceride (TG) and insulin.

Results. The analyses indicate that the Lp(a) concentrations are elevated among Nigerian populations and more skewed towards high levels than is observed for Caucasian and oriental groups. The median levels for Lp(a) were 24.0 mg dl‐1 and 19.0 mg dl‐1 for women and men, respectively. This difference was significant (p < 0.05) but after stratifying by age, only the 45–54 year‐old group of women (30.1 mg dl‐1) had significantly higher (p < 0.001) median concentrations of Lp(a) than men (18.4 mg dl‐1). Age, 20–64, had no influence on Lp(a) levels in men but in women Lp(a) concentrations increased significantly with age (p < 0.05). Among males alcohol consumption, smoking and body mass index (BMI) were not related to Lp(a) concentrations but a significant effect (p < 0.05) was noted for waist‐hip ratio (WHR). Among females no relationship was observed between Lp(a) levels and alcohol consumption, BMI and WHR. All serum lipids measured (TC, HDLC, HDL2c, HDL3c, low‐density lipoprotein (LDLC), and TG) were correlated with Lp(a) concentrations among men. A significant association with TC and LDLc remained after correcting for Lp(a) cholesterol. Among women, the Lp(a) levels were associated with TC, HDLc, HDL,3c, and LDLc but not with HDL2c, and TG. The correlations with TC and LDLc were not significant after correcting for Lp(a) cholesterol. Insulin did not correlate with Lp(a) levels in either men or women.

Conclusions. Lp(a) concentrations are high in Nigerians, particularly among women, and the association between the Lp(a) concentrations and other lipoproteins is stronger than in white populations.  相似文献   


12.
目的探讨老年2型糖尿病患者血清脂蛋白(a)[lp(a)]水平及其与颈动脉狭窄程度的关系。方法选择80例2型糖尿病老年患者及78例健康对照者,测定其血清lp(a)、总胆固醇(TC),甘油三脂(TG)、低密度脂蛋白(LDL-C)水平及颈动脉狭窄情况。结果糖尿病不同狭窄程度的四组组间的TC、TG、LDL-C均无显著性差异(p>0.05),与对照组比较有显著性差异(p<0.05);糖尿病患者的lp(a)值随颈动脉狭窄程度的增加而升高,成正比关系。结论 lp(a)在2型糖尿病患者血清中显著升高,且随着颈动脉狭窄程度的增加而升高,血清lp(a)测定可以作为糖尿病颈动脉硬化的预测指标之一。  相似文献   

13.
测定舟山渔民328名、杭州市民290名以及金华农民338名血清脂蛋白(a)的含量。结果表明舟山渔民血清脂蛋白(a)的平均值为12.7±14.4mg/dl,低于杭州市民组的血清脂蛋白(a)平均值14.2±13.6mg/dl和金华农民组的血清脂蛋白(a)的平均值14.6±16.1mg/dl,具有显著性差异(P<0.01);而血清脂蛋白(a)的平均值在杭州市民组与金华农民组之间却无统计学上的差异(P>0.05)。作者认为:舟山渔民组血清Lp(a)含量较杭州市民组及金华农民组为低,可能与舟山渔民多食富含N-3多不饱和脂肪酸的海鱼有关;而血清Lp(a)含量的下降,减少了Lp(a)强烈致动脉粥样硬化作用,这可能与舟山渔民冠心病的发病率和死亡率较其它地方为低有关  相似文献   

14.
雌二醇对苯并(a)芘致雄性小鼠肺癌抑制作用   总被引:1,自引:0,他引:1  
目的 建立苯并(a)芘[B(a)P]诱发雄性昆明小鼠肺癌的动物模型,探讨雌二醇(E2)在该模型中对B(a)P致肺癌作用的影响.方法 将不同组的雄性昆明小鼠分别给予B(a)P、E2干预,每周1次,持续8周,恢复8周后处死,进行形态学观察和病理学诊断,并检测血清超氧化物歧化酶(SOD)和丙二醛(MDA)水平.结果 B(a)P组小鼠的肺癌发病率和肿瘤数分别为36.0%和1.154±0.54,明显高于对照组和E2组(P<0.05);B(a)P+E2组小鼠的肺癌发病率和肿瘤数分别为32.0%和0.88±0.33,明显高于对照组和E2组(P<0.05);B(a)P组小鼠的肺癌发病率和肿瘤数高于B(a)P+E2组,肿瘤数差异有统计学意义(P<0.05),而发病率差异无统计学意义(P>0.05).血清MDA水平以B(a)P组最高,B(a)P+E2组及E2组次之,对照组最低;SOD与MDA的趋势相反.结论 建立了灌胃B(a)P诱发雄性昆明小鼠肺癌的动物模型,E2可能通过抗氧化作用减少B(a)P诱发的肺癌肿瘤数.  相似文献   

15.
Serum lipoprotein(a) [Lp(a) ], blood lipids, serum insulin and anthropometric parameters were determined in randomized samples of 38-year-old men living in six European cities: Ede (The Netherlands), Deinze (Belgium), Warsaw (Poland), Lumiar (Portugal), Verona and Naples (respectively in northern and in southern Italy). In total, 406 healthy men were studied. Serum Lp(a), blood lipids and serum insulin were measured in one laboratory. All the anthropometric and metabolic variables considered were statistically different among the participating sites, with the exception of Lp(a) serum levels. In spite of the lack of overall significant inter-center differences (Kruskal-Wallis test), the subjects from the two Italian cities had significantly lower Lp(a) serum levels than the subjects from Belgium and Portugal (Mann-Whitney U test, p < 0.01). In all cities the distribution of serum Lp(a) levels were highly skewed; the percentage of subjects with serum Lp(a) levels higher than 30 mg/dl (i.e., the commonly accepted risk level of cardiovascular disease) was 6% in both Verona and Naples (Italy), 12% in The Netherlands, 16% in Poland, 18% in Belgium and 19% in Portugal (for the last two cities, respectively, p < 0.02 and p < 0.01 vs Italian cities, chi-square test). Neither anthropometric (body mass index, waist/hip circumference ratio) nor metabolic (serum lipids and insulin) parameters showed any significant relationship with serum Lp(a) levels in any of the sites (Spearman's rank correlation).These data support the possibility of a difference in serum Lp(a) levels among different European countries.  相似文献   

16.
目的 研究中国女性INN醇侧链裂解酶基因(CYP11a)启动子中(tttta)n的遗传多态性分布以及与体重指数和腰臀比之间的关系,比较分析其发生频率与高加索人发生频率的差异。方法测量中国女性的体重、身高、腰围和臀围,并采用Chelex-100法从血标本中提取总DNA。特异引物聚合酶链反应(PCR扩增),经6%变性聚丙烯酰胺凝胶电泳分离,银染检测。结果被调查女性CYP11a启动子中(tttta)n多态性有6条等位基因片段,即(tttta)4,(tttta)6,(tttta)7,(tttta)8,(tttta)9,(tttta)10,频率分别是0.207,0.667,0.003,0.105,0.001,0.006。与高加索女性CYP11a启动子中(tttta)n等位基因频率比较,差异有统计学意义,P〈0.05;被调查女性各基因型之间的体质指数和腰臀比无统计学差异。结论CYP11a启动子中的(tttta)n多态性对被调查女性的体质指数和腰臀比没有影响。  相似文献   

17.
目的探讨妊娠高血压综合征(简称妊高征)患者血脂代谢水平的变化及其临床意义。方法测定正常孕妇及妊高征患者的血清甘油三脂(TG)、总胆固醇(TC)、载脂蛋白AI(ApoAI)、载脂蛋白B(ApoB)、高密度脂蛋白胆固醇(HDL-C)、低密度脂蛋白胆固醇(LDL-C)及脂蛋白(a)水平。结果妊高征组血清TG(P<0.01)、ApoB(P<0.01)、LDL-C(P<0.05)及LP(a)(P<0.05)较正常孕妇显著升高,ApoAI、HDL-C则显著降低(P<0.05),TC在两组间差别无显著性意义(P>0.05)。在轻、中、重妊高征患者之间,ApoAI(P<0.05)及HDL-C(P<0.01)依次降低,组间比较有显著性意义,LDL-C(P<0.01)及LP(a)(P<0.01)依次升高,组间有极显著性差异。TG、TC和ApoB组间比较,差别无显著性意义。结论血脂代谢异常可能在妊娠高血压疾病的发病中起一定作用。  相似文献   

18.
在健康体检中,我们发现心脏病的发病率逐年提高,年龄也趋于年轻化。通常,我们可能只注意高密度脂蛋白(HDL)、低密度脂蛋白(LDL)、极低密度脂蛋白(VLDL)及中间密度脂蛋白(IDL)等脂蛋白对心脏病的影响,而忽略了另一种脂蛋白,脂蛋白(a)。它是促进动脉粥样硬化的一项独立危险因子,并受遗传因素的影响,存在着个体差异,很难用药物及饮食等方法对它进行改善。因此,我们有待于对它进行进一步的研究,希望能提高心脏病患者的生活质量。  相似文献   

19.
目的探讨妊娠高血压综合征(简称妊高征)患者血脂代谢水平的变化及其,临床意义。方法测定正常孕妇及妊高征患者的血清甘油三脂(TG)、总胆固醇(TC)、载脂蛋白AI(ApoAI)、载脂蛋白B(ApoB)、高密度脂蛋白胆固醇(HDL—C)、低密度脂蛋白胆固醇(LDL—C)及脂蛋白(a)水平。结果妊高征组血清TG(P〈0.01)、ApoB(P〈0.01)、LDL—c(P〈0.05)及LP(a)(P〈0.05)较正常孕妇显著升高,ApoAI、HDL—C则显著降低(P〈0.05),TC在两组间差别无显著性意义(P〉0.05)。在轻、中、重妊高征患者之间,ApoAI(P〈0.05)及HDL—C(P〈0.01)依次降低,组间比较有显著性意义,LDL—C(P〈0.01)及LP(a)(P〈0.01)依次升高,组间有极显著性差异。TG、TC和ApoB组间比较,差别无显著性意义。结论血脂代谢异常可能在妊娠高血压疾病的发病中起一定作用。  相似文献   

20.
载脂蛋白(a)表型与冠心病及血清LP(a)含量的关系   总被引:2,自引:0,他引:2  
为探讨载脂蛋白(a)〔Apo(a)〕与冠心病及血清脂蛋白(a)〔LP(a)〕水平的关系,采用1∶1配比病例-对照研究方法,共收集调查对象102对,采用ELISA法测定血清LP(a)、SDS-PAGE电泳及免疫印迹技术测定Apo(a)表型。研究发现病例中Apo(a)的S1、S2区带出现频率多于对照,S4和测不到表型者少于对照,Ridit检验U=5.689,P<0.01;各Apo(a)分子量与其LP(a)含量的中位数呈负相关关系。  相似文献   

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