高敏C反应蛋白与高血压左室肥厚及颈动脉粥样硬化的相关性研究

目的探讨高敏c反应蛋白（hs—CRP）与高血压左室肥厚（LVH）及颈动脉粥样硬化之间的关系。方法将入选的187例未经治疗的1～2级原发性高血压（EH）患者分为颈动脉正常组、颈总动脉IMT增厚组和颈动脉斑块组。采用胶乳免疫增强比浊法测定血清hs—CRP,行颈动脉超声检查测量颈总动脉内中膜厚度（IMT）,观察有无颈动脉斑块形成,从而判断有无颈动脉粥样硬化,分析血清hs—CRP与颈动脉粥样硬化、颈总动脉IMT、颈动脉斑块形成之间的关系。同时行心脏超声检查,根据左室质量指数（LVMI）将高血压患者分为LYH组与无LYH组。结果①颈动脉斑块组和颈动脉正常组血清hs—CRP分别为（6．34±1．35）mg／L和（2．34±0．53）mg／L,LVMl分别为（138．6±16．8）g／m。和（105．5±8．5）g／m2,颈动脉斑块组血清hs—CRP、LVMI均显著高于颈动脉正常组（P〈0．05）。②LVH组和NLVH组血清hs—CRP分别为（6．42±3．53）mg／L和（2．75±1．08）mg／L,IMT水平分别为（2．89±0．46）mm和（0．72±0．23）mm,LVH组血清hs—CRP、IMT均高于NLVH组（P〈0．01,P〈0．05）。相关分析表明,hs—CRP与LVMI及IMT均呈直线正相关（r=0．58,P〈0．05;r=0．53,P〈O．05）。结论血清hs—CRP与LVMI、IMT均密切相关,表明hs—CRP参与了高血压的发生发展,并且可能在高血压心血管重构过程中起到了至关重要的作用。     

2型糖尿病患者颈动脉内膜中层厚度与血尿酸、C反应蛋白的关系

对65例2型糖尿病患者和60例正常对照者分别测定血尿酸（UA）、高敏C反应蛋白（hs-CRP）等生化指标，采用超声测定颈动脉内膜中层厚度（IMT），比较两组间UA、hs-CRP、IMT水平。采用多元回归分析2型糖尿病患者颈动脉IMT和UA、hs-CRP之间的关系。结果UA、hs—CRP与2型糖尿病患者颈动脉IMT增厚有关，2型糖尿病患者颈动脉IMT与UA、hs—CRP呈正相关。提示2型糖尿病患者血UA与hs—CRP可协助诊断冠心病。     

高敏C反应蛋白与高血压的关系

目的探讨血清高敏C反应蛋白（hs—CRP）浓度与高血压的关系。方法选择高血压患者128例,非高血压组102例为同期本院健康体检者,测定其血压、hs—CRP、血清胆固醇、甘油三酯、高密度脂蛋白、低密度脂蛋白、血糖、血尿酸等。结果高血压组和非高血压组血清hs—CRP浓度分别为（8．01±6．59）mg／L和（2．25±1．38）mg／L,P=0．000。血清hs—ClIP浓度随收缩压、舒张压及脉压水平的升高而增加。有合并症组和无合并症组的血清hs—CRP浓度分别为（7．24±7．30）mg／L和（3．54±2．17）mg／L,P=0．000。结论血清hs—CRP浓度与高血压密切相关,提示高血压患者血管壁存在炎症反应,炎症反应可能在高血压的发生、发展中起重要作用。     

心绞痛类型与应激性高血压及炎症因子的相关性分析

目的：探讨应激性高血压与心绞痛类型及炎症因子间的相关性。方法：将800例经冠状动脉造影检查确诊的冠心病心绞痛患者分为稳定型心绞痛（SAP）组200例和不稳定型心绞痛（UAP）组600例。所有患者均采用ELISA法测定血清中白细胞介素（IL）-6、IL-8和高敏C反应蛋白（hs—CRP）水平;监测血压≥140／90mmHg为高血压。分析冠状动脉造影检查术中血压升高与心绞痛类型及炎症因子的关系。结果：术中血压≥140／90mmHg以UAP患者为主,而〈140／90mmHg以SAP患者为主;UAP患者组粗清中IL-6、IL-8和hs—CRP含量均高于SAP组（P〈0．05）;UAP组中IL-6与hs—CRP呈正相关（r=0．357,P〈0．05）,WBC与hs-CRP亦呈正相关（r=0．366,P〈0．05）,SAP组WBC与hs—CRP呈正相关（r=0．521,P〈0．05）。结论：应激性高血压可能参与冠状动脉粥样斑块损伤的动态发展过程,其参与方式可能是血管内皮的高炎症反应;因此,应激性高血压可作为预示心绞痛恶化发展的指征之一。     

夜间血压变化对hs—CRP及心功能指标的影响

目的探讨高敏C反应蛋白（hs—CRP）、B型尿钠肽（BNP）与夜间血压变化的关系。方法将60例高血压患者根据夜昼血压比值分为异常组及正常组,检测血清hs-CRP、BNP水平,超声心动图测算E／A值、左室射血分数（LVEF）,监测24h血压。结果夜昼血压比值异常组较正常组hs-CRP、BNP明显升高（P〈0．01）。夜昼血压比值与hs—CRP、BNP、E／A、LVEF均呈显著正相关（r分别为0．696、0．573、0．421、0．493,P均〈0．01）。结论夜间血压异常对hs—CRP、BNP有明显影响,说明夜昼血压比值异常的高血压患者较正常患者其发生动脉粥样硬化的危险更高,心功能下降更明显。     

初诊2型糖尿病颈动脉内膜中层厚度、胰岛素抵抗及高敏C反应蛋白之间的关系

新诊断2型糖尿病76例，按照有无颈动脉内膜中层厚度（IMT）增厚分成增厚组39例和无增厚组37例；另取正常健康者32例作对照组。分别测定三组IMT、高敏C反应蛋白（hs—CRP）、胰岛素抵抗指数（IRI）进行分析比较。结果IMT增厚组和无增厚组hs—CRP水平高于正常对照组（P均〈0．05）；IMT增厚组IRI高于无增厚组和对照组（P〈0．05）。初诊2型糖尿病颈动脉IMT与IR／、hs—CRP呈正相关（r=0．451，0．057；P均〈0．01）。认为颈动脉IMT的增厚提示糖尿病患者存在胰岛素抵抗；hs—CRP水平的升高是患者动脉粥样硬化程度加重的危险因素。     

MMP-9、hs-CRP与颈动脉IMT、肱动脉内皮功能的相关性研究

目的探讨基质金属蛋白酶（MMP）-9、超敏C-反应蛋白（hs—CRP）与颈动脉内膜中层厚度、肱动脉内皮功能的关系。方法选择180例患者，采用高分辨血管外超声法对所有患者颈动脉、肱动脉进行扫查，检测颈动脉IMT及粥样斑块；在静息、反应性充血时分别测量肱动脉内径。根据颈动脉IMT及斑块情况，分为内膜正常组和内膜增厚组。内膜增厚组中再分亚组为内膜弥漫性增厚组、稳定性斑块组、不稳定性斑块组。用免疫学方法测定血清中MMP-9、hs—CRP浓度并分析其与超声结果的关系。结果内膜增厚组血清中MMP-9、hs-CRP浓度较内膜正常组明显增高（P〈0．01）；不稳定性斑块组、稳定性斑块组与内膜弥漫性增厚组相比，血清中MMP-9、hs-CRP浓度明显增高（P〈0．05，P〈0．01）；不稳定性斑块组与稳定性斑块组相比，血清中MMP-9、hs-CRP浓度明显增高（P〈0．05）；内膜增厚组肱动脉内皮功能（Flow—MD）与血清中MMP-9、hs-CRP浓度呈负相关，相关系数分别是-0．791，-0．886（P〈0．001）。结论血清中MMP-9、hs—CRP浓度增高与颈动脉内膜中层厚度（IMT）、斑块的不稳定性及肱动脉内皮细胞功能受损关系密切。     

替米沙坦对老年高血压患者尿酸和超敏C反应蛋白的影响

目的探讨替米沙坦对老年原发性高血压合并高尿酸血症患者的治疗作用以及对超敏C反应蛋白（hs-CRP）的影响。方法选择66例老年1～2级原发性高血压患者,血尿酸（BUA）420～530μmol／L,随机分成2组：替米沙坦组35例（替米沙坦40-80mg／d）、对照组31例（苯磺酸氨氯地平5～10mg／d）,两组患者用药2周末测血压。治疗12周后观察收缩压、舒张压、空腹BUA、hs-CRP水平。结果治疗2周末两组患者血压开始下降,4周后血压趋于稳定,与治疗前比较差异有统计学意义（P〈0．01）,治疗12周后两组血压比较差异无统计学意义。替米沙坦组治疗12周后BUA、hs—CRP水平较治疗前下降（P〈0．01）,对照组hs—CRP较治疗前下降（P〈0．01）。结论替米沙坦除有良好的降压作用外,尚能有效地降低原发性高血压患者hs—CRP、BUA水平。     

高敏C反应蛋白、同型半胱氨酸与高血压颈动脉粥样硬化的相关性研究

目的探讨原发性高血压（EH）患者高敏C反应蛋白（hs—CRP）、同型半胱氨酸（Hcy）与颈动脉内膜-中层厚度（IMT）的相关性。方法选择初发未经降压治疗的EH患者128例作为高血压组,检测血压、身高、体重、体质量指数（BMI）及生化指标,采用胶乳免疫比浊定量法测hs—CRP,循环酶法测Hcy水平。按照中国高血压防治指南标准将EH患者分为高血压1级组（43例）、高血压2级组（46例）和高血压3级组（39例）,并对EH患者依据颈动脉超声结果将其分为无病变组（48例）、内膜增厚组（42例）和斑块组（38例）三个亚组。以40名健康人作为正常对照组。结果高血压组hs—CRP、Hcy水平均显著高于正常对照组,差异有统计学意义（P〈0．01）。高血压患者不同血压级别组间hs—CRP、Hcy水平比较,hs—CRP水平在各组间差异均有统计学意义（P〈0．01）,而Hey水平在各组间差异均无统计学意义（P〉O．05）;高血压合并不同程度颈动脉硬化组间hs—CRP、Hey水平比较,hs—CRP、Hcy水平斑块组和内膜增厚组高于无病变组,斑块组又明显高于内膜增厚组,差异均有统计学意义（P〈0．01）。进一步相关分析显示,IMT除与年龄、BMI、收缩压、舒张压、脉压、LDL呈正相关（P〈0．05或P〈0．01）外,同时与hs—CRP、Hcy呈正相关（r=0．610和r=0．571,P〈0．01）。结论ha—CRP、Hey与EH患者颈动脉粥样硬化（CAS）的发生发展有关,提示早期干预炎症反应及高Hcy血症可延缓动脉粥样硬化的进程。     

高敏C反应蛋白与高血压病心房颤动的相关性研究

目的探讨血清高敏C反应蛋白（hs—CRP）在高血压心房颤动发生和发展中的作用。方法采用胶乳免疫增强比浊法测定157例原发性高血压患者血清hs—CRP,其中阵发性房颤34例、持续性房颤37例、永久性房颤38例;单纯高血压48例作为对照组。结果心房颤动组和对照组的hs-CRP分别为（9．75±1．08）mg／L、（3．34±0．53）mg／L,左房内径分别为（43．5±8．5）mm、（31．6±4.3）mm,心房颤动组的hs—CRP和左房内径高于对照组（P〈0．01）;持续性房颤组、永久性房颤组和阵发性房颤组的hs—CRP分别为（10．23±1．16）mg/L、（11．34±1．35）mg／L和（7．87±0．59）mg／L,左房内径分别为（45．7±8．9）mm、（47．1±9．7）mm和（37．2±5．8）mm,持续性房颤组和永久性房颤组的hs—CRP和左房内径均明显高于阵发性房颤组（P〈0．05）;而持续性房颤组hs-CRP、左房内径与永久性房颤组差异无统计学意义（P〉0．05）。左房内径与hs—CRP水平呈正相关（r=0．58,P〈0．05）。结论心房颤动患者hs—CRP明显升高,提示炎症反应在高血压心房颤动的发生、发展中起一定作用。     

Vascular remodeling of the carotid artery in patients with untreated essential hypertension increases with age.

We examined whether hypertrophy of the carotid artery in patients with untreated essential hypertension is associated with compensatory carotid artery enlargement as these patients age. Carotid ultrasonography was evaluated in 163 patients with untreated essential hypertension (74 males and 89 females) and in 76 normotensive subjects. Intima-media end-diastolic thickness (IMT) and outer vessel diameter (VD) were measured, and relative wall thickness (IMT/R, R=VD/2) and vascular mass (VM) were calculated. Determinants of vascular hypertrophy in patients with untreated essential hypertension were also investigated. VD, VM, and IMT were significantly correlated with age in both the normotensive and hypertensive groups. Additionally, IMT was significantly correlated with VD in both groups. There was no correlation between increasing age and IMT/R in either group. IMT, VD and VM were significantly higher in the hypertensive group >50 years than in age-matched normotensive controls. However, IMT/R was significantly higher in the 50-59 years hypertensive group than in normotensive controls of the same age group. In addition to age, VM was related to systolic blood pressure, pulse pressure, fasting blood sugar, IMT, VD, and IMT/R in the hypertensive group. Multivariate regression analysis in the hypertensive group indicated that IMT/R was the strongest predictor of carotid vascular mass. Age and pulse pressure were also independently related to vascular mass. These results indicate that, as patients with untreated hypertension age, carotid arteries undergo remodeling. This should add further impetus to the implementation of appropriate hypertension treatment for such patients.     

高敏C反应蛋白及脉压与老年高血压患者动脉粥样硬化相关性探讨

目的探讨高敏C反应蛋白(hs-CRP)及脉压(PP)与老年原发性高血压(EH)患者动脉粥样硬化(AS)的相关性。方法对106例老年EH患者进行hs-CRP浓度测定,同时测量血压,并使用B型超声测定颈动脉内膜中层厚度(IMT)及斑块,根据IMT及斑块将患者分为非IMT增厚组(32例)和IMT增厚组(74例),结合hs-CRP及PP对两组患者进行比较和综合分析。结果IMT增厚组hs-CRP及PP显著高于非IMT增厚组(P<0.05,P<0.01),粥样斑块Ⅰ、Ⅱ、Ⅲ级hs-CRP及PP显著高于粥样斑块0级(P<0.05,P<0.01),并且IMT与hs-CRP及PP呈显著正相关,IMT增厚组相关系数分别为0.742和0.638(P<0.05,P<0.01),非IMT增厚组相关系数分别为0.553和0.425(P<0.05,P<0.01),所有患者相关系数分别为0.679和0.538(P<0.05,P<0.01)。进一步行多因素logistic多元回归分析,结果显示,hs-CRP、PP、收缩压与IMT增厚呈正相关。结论血清hs-CRP及PP水平与老年EH患者AS发病密切相关。     

老年高血压患者血清同型半胱氨酸、超敏C反应蛋白与颈动脉内膜-中层厚度的相关性研究

目的探讨老年高血压患者血清同型半胱氨酸（HCY）与超敏C反应蛋白（hs-CRP）与颈动脉内膜-中层厚度（IMT）的相关性。方法纳入115例老年（年龄≥60岁）高血压患者,依照IMT检查结果分为IMT正常组（n=36）、IMT增厚组（n=38）和斑块形成组（n=41）。分别测定各组血压和血脂及HCY和hs-CRP,并分析其与IMT的相关性。结果 IMT正常组、IMT增厚组及斑块形成组的收缩压（SBP）、总胆固醇（TC）、低密度脂蛋白胆固醇（LDL-C）、HCY、hs-CRP呈升高趋势,差异有统计学意义（P〈0.05）。三组高密度脂蛋白胆固醇（HDL-C）无统计学差异相关分析显示IMT与年龄、SBP、TC、LDL-C、HCY及hs-CRP成正相关。logistic回归分析显示HCY与hs-CRP为IMT影响因素。结论血清HCY水平、hs-CRP浓度与颈动脉粥样硬化程度密切相关,可作为全身心脑血管病的一个危险信号。     

基质金属蛋白酶9及其抑制剂与老年高血压患者颈动脉粥样硬化程度的相关性

目的探讨基质金属蛋白酶9(mctalloprotemase-9,MMP-9)及组织基质金属蛋白酶抑制剂1(TIMP-1)与老年高血压患者颈动脉粥样硬化程度的相关性。方法选择老年高血压患者330例,应用高分辨超声测量颈动脉内膜中层厚度(IMT)及斑块情况,将患者分为4组:IMT正常组(26例)、IMT增厚组(80例)、稳定性斑块组(135例)和不稳定性斑块组(89例),测定血清生化指标、MMP-9、TIMP-1水平,进行组间比较。结果 IMT正常组、IMT增厚组、稳定性斑块组和不稳定性斑块组血清MMP-9、TIMP-1水平逐渐增高,不稳定性斑块组MMP-9/TIMP-1比值明显高于其他3组,差异有统计学意义(P<0.01)。取所有高血压患者进行多元线性逐步回归分析,颈动脉IMT与年龄、收缩压、LDL-C、空版(?)(?)相关(P<0.05,P<0.01);logistic回归分析显示,颈动脉是否存在斑块与体重指数、收缩压、LDL-C、logMMP-9相关(P<0.05,P<0.01)。取颈动脉斑块患者进行logistic回归分析,斑块是否稳定与收缩压、LDL-C、logMMP-9(模型1,P<0.05,P<0.01)或收缩压、LDL-C、logMMP-9/TIMP-1比值(模型2,P<0.05)相关。结论老年高血压患者血清MMP-9水平、MMP 9/TIMP-1比值与颈动脉是否存在斑块及其稳定性密切相关。     

Increased human urotensin II levels are correlated with carotid atherosclerosis in essential hypertension

BACKGROUND: Circulating blood levels of human urotensin II (U-II), the most potent vasoconstrictor peptide identified to date, are increased in patients with essential hypertension. Our previous studies showed that U-II accelerates human macrophage foam cell formation and vascular smooth muscle cell proliferation, suggesting development of atherosclerotic plaque. In this study, we demonstrated a correlation between plasma U-II level and progression of atherosclerosis in hypertensive patients. METHODS: The intima-media thickness (IMT) and plaque score in the carotid artery, blood pressure (BP), plasma levels of U-II, and atherosclerotic parameters were determined in 50 hypertensive patients and 31 normotensive controls. RESULTS: Plasma U-II level, maximum IMT, plaque score, systolic BP, and homeostasis model assessment for insulin resistance (HOMA-IR) were significantly greater in hypertensive patients than normotensive controls. Age, gender, body mass index, and serum levels of high-sensitive C-reactive protein (CRP), HDL and LDL cholesterols, small dense LDL, triglycerides, lipoprotein(a), insulin, and fasting plasma glucose level were not significantly different between the two groups. In all subjects, plasma U-II level showed significant positive correlations with systolic BP, maximum IMT, plaque score, and HOMA-IR. Multiple logistic regression analysis indicated that the contribution of plasma U-II levels to carotid plaque formation (plaque score >/=1.1) was significantly still greater with a 60% increase than those of established risk factors, such as age, systolic BP, high-sensitive CRP, small dense LDL, and HOMA-IR. CONCLUSIONS: Our results suggest that increased levels of U-II may play a crucial role in the development of carotid atherosclerosis in hypertensive patients.     

高血压患者血清抵抗素水平与颈动脉内膜-中层厚度的相关性研究

目的:抵抗素是一种脂肪细胞因子,并且它是一种富含半胱氨酸的分泌蛋白.本研究主要探讨高血压患者血清抵抗素水平与颈动脉内膜-中层厚度(IMT)的相关性.方法:入选272例原发性高血压患者,根据他们的血清抵抗素水平由低到高平均分为3组,第一组(血清抵抗素水平1.233~3.701 ng/ml)91人,第二组(血清抵抗素水平3.728~8.777 ng/ml)91人,第三组(血清抵抗素水平8.809~28.658 ng/ml)90人.结果:第三组的颈动脉IMT和颈动脉最大IMT均大于第一组和第二组(P均<0.05).多元线性回归分析示,在控制了年龄、血糖、尿酸、低密度脂蛋白胆固醇、收缩压、舒张压等因素之后,血清抵抗素水平与颈动脉IMT(β=0.220,t=5.793,P=0.000)呈独立的显著正相关.在控制了年龄、血糖、体重指数、舒张压、糖尿病、血清高敏C反应蛋白、总胆固醇、甘油三酯之后,血清抵抗素水平与颈动脉最大IMT(β=0.189,t=4.733,P=0.000)也呈独立的显著正相关.结论:在原发性高血压的患者,血清抵抗素水平与增厚的颈动脉IMT独立相关.     

Association between carotid haemodynamics and inflammation in patients with essential hypertension

Previous studies have shown that high blood pressure causes chronic inflammation. Hypertensive patients are reported to have high-circulating levels of proinflammatory cytokines such as interleukin-6 (IL-6) and high sensitive C-reactive protein (hs-CRP). The pulsatility index (PI) and resistive index (RI) are used as markers of peripheral vascular resistance. In the present study, we evaluated the relationship between carotid haemodynamics and the proinflammatory cytokines, IL-6 and hs-CRP. In all, 41 patients with essential hypertension participated. The intima-media thickness (IMT), peak systolic velocity (pVs), peak diastolic velocity (pVd) and mean velocity (mV) in the common carotid artery were measured using ultrasound Doppler flow methods, and PI [(pVs-pVd)/mV] and RI [(pVs-pVd)/pVs] were calculated. Serum IL-6 and hs-CRP concentrations were measured by an enzyme-linked immunosorbent assay. IMT was positively correlated with age and pulse pressure. Both PI and RI were positively correlated with pulse pressure, IL-6 and hs-CRP. A multiple regression analysis revealed that PI and RI were independently associated with hs-CRP. These results suggested that carotid haemodynamic parameters such as PI and RI are associated with atherosclerosis and inflammation in hypertensive patients.     

调脂治疗对高血压病患者颈动脉粥样硬化及合并脑卒中的干预

为探讨在降压治疗的同时调脂对高血压病患者颈动脉粥样硬化及合并脑卒中的干预作用。对 10 2例高血压病患者应用微粒化非诺贝特进行为期 2 4个月的调脂干预并与 10 5例患者对照 ,观察干预前后患者颈动脉超声及血脂等指标的变化。结果发现 ,干预组调脂 2 4个月后颈动脉内膜中膜厚度基本保持稳定 ,内膜中膜厚度 内径比率及颈动脉斑块发生率均比调脂前有明显降低 (P <0 .0 5 ) ;与对照组相比 ,干预组脑卒中的相对危险性降低 34%。提示在有效降压治疗的同时加用调脂 ,对高血压病患者延缓颈动脉粥样硬化的进展和降低患者脑卒中的发生有良好的干预作用。     

Relative influence of insulin resistance versus blood pressure on vascular changes in longstanding hypertension. ICARUS, a LIFE sub study. Insulin Carotids US Scandinavia

BACKGROUND: Insulin resistance is associated with hypertension. The relative influences of hyperinsulinaemia and high blood pressure on vascular hypertrophy and carotid distensibility is unclear in patients with longstanding hypertension. METHODS: In 88 unmedicated patients with stage II-III hypertension and left ventricular hypertrophy on electrocardiogram we measured blood pressure, minimal forearm vascular resistance (MFVR) using plethysmography, intima-media thickness (IMT) and the wall distensibility of the common carotid arteries using ultrasound, and insulin sensitivity using a 2-h isoglycaemic hyperinsulinaemic clamp. RESULTS: IMT was positively correlated to systolic blood pressure (r= 0.26, P < 0.05), whole body glucose uptake index (M/IG; r= 0.22, P< 0.05), age (r= 0.24, P< 0.05) and negatively correlated to body mass index (r= -0.24, P < 0.05); IMT did not correlate to fasting serum insulin (r= -0.14, NS). In men (n = 64) MFVR was positively correlated to systolic blood pressure (r = 0.30, P < 0.05), but was unrelated to M/G and serum insulin. The distensibility of the common carotid arteries was negatively correlated to systolic blood pressure (r = -0.40, P< 0.001) and in untreated patients (n = 22) positively correlated to M/IG (r = 0.47, P < 0.05). CONCLUSIONS: High systolic blood pressure was related to vascular hypertrophy, whereas hyperinsulinaemia and insulin resistance were not, suggesting that longstanding high blood pressure is a far more important determinant for structural vascular changes than insulin resistance at this stage of the hypertensive disease. However, hyperinsulinaemia and insulin resistance were associated with low distensibility of the common carotid arteries in the subgroup of never treated hypertensive patients.