原发性高血压患者颈动脉斑块及动脉僵硬度与血清尿酸水平的关系*

 目的：研究原发性高血压（essential hypertension,EH）患者颈动脉斑块性质及动脉僵硬度与血清尿酸（uric acid,UA）水平的关系。方法：选择EH患者92例,健康对照组30例;对所有研究对象行相关血液生化检查,检测颈总动脉内中膜厚度（IMT）、颈动脉斑块和颈股动脉脉搏波传导速度（CFPWV）。结果：EH组的血清UA明显高于对照组［（361.51±83.81)μmol/L vs (317.03±62.22) μmol/L,P<0.05］;EH组IMT及异常检出率较对照组明显升高［(0.69±0.14) mm vs (0.60±0.12) mm,42.39% vs 10.00%,P<0.05］;45例EH患者检出颈动脉斑块,随着颈动脉斑块严重程度增高,血清UA水平依次增高［（285.25±78.41) μmol/L、(341.19±63.99) μmol/L和(401.33±88.49) μmol/L,P<0.05］;软斑块组（n=11）的血清UA水平较硬斑块组（n=34）显著增高［（389.00±69.45) μmol/L vs (323.03±72.71) μmol/L,P<0.05］。多元线性逐步回归分析显示CFPWV与年龄（r=0.414）、收缩压（r=0.224）、脉压（r=0.270）和血清UA（r=0.219）呈显著正相关（P<0.05）。结论：血清UA水平增高是EH发病的危险因素之一,血清UA水平可反映颈动脉斑块的严重程度及稳定性,EH患者随着血清UA水平增高大动脉弹性减退。     

颈动脉斑块与同型半胱氨酸、脂蛋白（a）和超敏C反应蛋白的关系

目的 探讨颈动脉斑块与血清同型半胱氨酸(Hcy)、脂蛋白(a)[LP(a)]、超敏C反应蛋白(hsCRP)的变化的关系.方法 应用颈动脉超声检查将299名患者分成有颈动脉斑块组和无颈动脉斑块组,采用全自动生化分析仪测定患者血清中Hcy 、LP(a)、hsCRP的水平.结果 有颈动脉斑块组患者血清中Hcy 、LP(a)、hsCRP的水平比无颈动脉斑块组的患者明显增高,有显著性差异(P<0.01).结论 Hcy、LP(a)、hs-CRP作为颈动脉斑块形成的独立危险因素具有重要临床意义.     

2型糖尿病患者血尿酸与颈动脉内膜厚度的关系研究

目的 了解2型糖尿病患者血清尿酸与颈动脉内膜中层厚度及颈动脉粥样硬化相关危险因素的关系。方法 回顾性分析2010年1月~2016年12月我院收治的3570例2型糖尿病患者的临床资料,按彩色多普勒超声分为颈动脉斑块形成组（1888例,颈动脉内膜中层厚度≥1.5 mm或存在颈动脉斑块）、颈动脉中膜增厚组（332例,颈动脉内膜中层厚度≥1.0 mm）和正常组（1350例,颈动脉内膜中层厚度＜1.0 mm）。比较患者性别、年龄、病程、体重指数（BMI）、吸烟史、饮酒史、糖尿病家族史、高血压病史、血尿酸、空腹血甘油三酯、空腹血总胆固醇、血低密度脂蛋白（LDL）、血高密度脂蛋白（HDL）、空腹血糖、空腹C肽、糖化血红蛋白、双侧颈动脉内膜中层厚度等资料。结果 三组年龄、病程、脑梗死病史、收缩压、血尿酸、LDL、TG、TC、LDL、空腹血糖水平比较,差异均有统计学意义（P＜0.05）;正常组与颈动脉斑块形成组、正常组与颈动脉内膜增厚组年龄、病程、BMI、高血压病史、脑梗死病史、收缩压、血尿酸、LDL比较,差异均有统计学意义（P＜0.05）;在糖尿病家族史、冠心病史、足溃疡病史、TG、TC、空腹血糖方面,正常组与颈动脉斑块形成组或正常组与颈动脉内膜增厚组间差异有统计学意义（P＜0.05）;颈动脉内膜中层增厚组中血尿酸水平与颈动脉中膜厚度正相关（r=0.04,P=0.01）。结论 2型糖尿病患者的血清尿酸水平与颈动脉内膜中层厚度有关,控制2型糖尿病患者的血尿酸水平可以预防和减缓其心血管疾病的进展。     

巨噬细胞移动抑制因子、高敏C-反应蛋白与颈动脉粥样硬化和急性脑梗死的关系

目的探讨巨噬细胞移动抑制因子、高敏C-反应蛋白与颈动脉粥样硬化和急性脑梗死的关系。方法103例首次发病的脑梗死患者和40例健康体检者，应用酶联免疫双抗体夹心法测定血清MIF浓度，免疫散射比浊法测定血清hs—CRP浓度。应用颈动脉超声检测颈动脉内膜状况，并对急性脑梗死患者进行神经功能缺损评分。结果急性脑梗死患者血清MIF和hs—CRP浓度显著高于正常对照组（P〈0．01）。不稳定斑块组（混合斑块组、软斑组）血清MIF和hs-CRP浓度显著高于稳定斑块组（硬化斑块组）和内膜粗糙组（P〈0．01）。血清MIF和hs—CRP浓度分别与急性脑梗死患者神经功能缺损评分呈正相关。结论急性脑梗死患者血清MIF和hs-CRP水平可以反映颈动脉斑块的性质和稳定性，是临床了解脑梗死严重程度的重要指标。     

脑梗死颈动脉粥样硬化斑块形成的危险因素分析

目的:研究脑梗死颈动脉粥样硬化斑块形成的危险因素.方法:选取我院2018年2月至2021年6月期间收治的158例脑梗死患者,根据患者颈动脉超声检查示有无斑块形成将患者分为斑块组(92例)和无斑块组(66例).统计所有患者的年龄、体质量指数(Body Mass Index,BMI)、颈动脉内膜中层厚度(intima-media thickness,IMT)等一般资料.多元Logistic回归分析影响脑梗死颈动脉粥样硬化斑块形成的因素.结果:年龄、高血压病史、糖尿病病史、甘油三酯(triglyceride,TG)、高密度脂蛋白胆固醇(High density lipoprotein cholesterol,HDLC)、低密度脂蛋白胆固醇(Low density lipoprotein cholesterol,LDLC)、吸烟史,饮酒史,IMT是影响脑梗死颈动脉粥样硬化斑块形成的单因素(P<0.05).年龄、高血压病史、高血糖病史、吸烟史以及IMT是影响脑梗死颈动脉粥样硬化斑块形成的独立危险因素(P<0.05).结论:通过评估颈动脉部超声相关参数,对脑梗死颈动脉粥样硬化斑块的形成有预测价值.     

颈动脉超声在预测老年人心脑血管疾病的应用价值

目的：探讨颈动脉粥样硬化与心脑血管疾病的相关性及颈动脉超声诊断价值。方法对279例疑诊心脑血管疾病的老年人行颈动脉超声检查,并以95例同期体检老年人的颈动脉超声检查作对照观察颈动脉内中膜厚度(IMT),观察有无斑块及斑块数量、形态、大小,管腔狭窄阻塞程度,颈动脉血流速度等,并与冠状动脉造影(CAG)和经CT证实的发生脑卒中患者的结果进行对比分析。结果与对照组比较,心脑血管疾病组患者颈动脉内膜厚度和斑块形成率(65.2豫)、crouse积分均较对照组明显增高,而峰值流速明显低于对照组,两组之间比较有统计学差异(<0.05)。结论老年人心脑疾病的病变程度与颈动脉粥样硬化病变程度密切相关。颈动脉粥样硬化是老年人心脑血管疾病发生的危险因素。利用颈动脉超声检查这种无创技术可对老年人群进行筛查,提高对老年人心脑疾病的预诊能力。     

妊娠期糖尿病与孕妇血清C-反应蛋白水平相关性研究

目的：探究妊娠期糖尿病与孕妇血清C-反应蛋白水平相关性。方法：选取2014年4月至2015年11月于我院接受孕检的孕妇190例,其中糖尿病孕妇97例,作为本研究实验组;另外93例健康状况良好,作为对照组。记录并比较两组孕妇年龄、平均孕周、孕前体重指数(BMI);检查并比较其血清C-反应蛋白(CRP)水平、胰岛素抵抗指数、空腹血糖水平、空腹胰岛素水平、孕期体重增长,并对CRP的相关影响因素进行Pearson相关分析以及多元线性回归分析。结果：对照组孕妇平均年龄为(29.13±2.18)岁,平均孕周为(25.36±3.23)周,孕前BMI为(20.27±1.72) kg/m2;实验组孕妇平均年龄为(28.24±1.97)岁,平均孕周(26.13±2.79)周,孕前BMI为(20.32±1.68) kg/m2,对比结果无统计学差异(P>0.05);对照组空腹血糖含量为(4.62±0.54) mmol/L,实验组为(5.21±0.81) mmol/L,对比结果无统计学意义(P>0.05);对照组空腹胰岛素水平为(8.93±1.76) mmol/L,实验组为(11.71±4.83) mmol/L,对比结果具有统计学意义(P<0.05);对照组孕妇血清CRP含量为(2.17±0.76) mg/L,胰岛素抵抗指数为1.76±0.69,孕期体重增长(13.47±2.01) kg,实验组为孕妇血清CRP含量为(4.12±0.73) mg/L,胰岛素抵抗指数为2.57±2.18,孕期体重增长(17.13±5.79) kg,对比结果具有统计学意义(P<0.05);Pearson分析显示血清CRP水平与胰岛素抵抗指数、孕期体重增长、孕前体重指数、空腹血糖呈正相关关系,其系数分别为0.369、0.319、0.289、0.268,均具有统计学意义(P<0.05),对CRP的多元线性回归分析,其方程为y(CRP)=0.319X1+0.09X2+0.239X3?3.879,r2=0.259(X1：胰岛素抵抗指数,X2：孕期体重增长,X3：孕前体重指数)。结论：对于妊娠期妇女,血清C-反应蛋白水平超标是引起糖尿病的重要因素之一,但独立影响尚不能被证实,建议临床上在孕期定期检查孕妇血清C-反应蛋白水平,有利于妊娠期糖尿病的有效防治。     

超敏C反应蛋白水平与急性冠脉综合征危险分层的相关性分析

目的 探讨血清超敏C反应蛋白(hs-CRP)水平与急性冠脉综合征(ACS)危险分层的相关性.方法 选取2014年6月至2015年6月军事医学科学院附属医院收治的ACS患者.入院后测定血清hs-CRP水平,采用GRACE评分对ACS进行危险分层,分析两者间的相关性,评估hs-CRP预测ACS高危患者的敏感性与特异性.结果 共入组112例ACS患者.人组患者血清hs-CRP水平与GRACE危险评分呈正相关(r=0.519,P＜0.001).根据ROC曲线结果,hs-CRP诊断ACS高危患者的AUC为0.789(95％ CI:0.701～0.878,P＜0.001).设血清hs-CRP水平为3.5mg/L为预测ACS患者GRACE高危组的临界点,其诊断ACS高危患者的敏感性和特异性分别为81.0％、58.4％.结论 本研究结果证实入院早期的血清hs-CRP水平与GRACE评分呈显著的相关性,其可以有效反映ACS患者的危险程度.     

脑梗死患者间歇使用低分子肝素对颈动脉斑块和血清炎性标志物的影响

目的:脑梗死患者间断使用低分子肝素,观察其对颈动脉斑块和血清炎性标志物的影响.方法:选择脑梗死并具有颈动脉斑块的患者78例作为对象,随机分为常规组(37例)和低分子肝素组(41例),分别于治疗前后测定颈动脉斑块情况及血清高敏C反应蛋白(hs-CRP)、基质金属蛋白酶-9(MMP-9)水平.结果:①治疗前比较,两组间颈动...     

老年无症状动脉硬化的baPWV检测及危险因素分析

目的:探讨老年无症状动脉硬化的检测及危险因素特征。方法:以上臂-脚踝脉搏波传导速度(baPWV)这项与大动脉脉搏波传导速度之间有较好相关性的指标作为测量指标,对204名入住我科的老年人进行baPWV测定,以1400cm/s为界值将所有对象分为对照组与动脉硬化组,比较各危险因素在二组中的分布特征。结果:动脉硬化组的空腹血糖(FBG)、超敏C-反应蛋白(hs-CRP)、尿酸(UA)、收缩压(SBP)、脉压(PP)和体重指数(BMI)均高于对照组,而舒张压(DBP)低于对照组(P<0.05)。Logistic回归显示FBG、hs-CRP、SBP和PP是老年无症状动脉硬化的独立危险因子。结论:FBG、hs-CRP、SBP和PP可能对动脉硬化的发展过程起到促进作用,加强对这些因素的早期预防和干预,有望减少心血管事件的发生。     

Relations of plasma high-sensitivity C-reactive protein to various cardiovascular risk factors

This study was performed to evaluate the relation of high-sensitivity C-reactive protein (hsCRP) with several cardiovascular risk factors such as age, blood pressure, smoking habit and serum lipids, body mass index, blood glucose, regular exercise, alcohol drinking, white blood cell counts in a cross-sectional survey. Plasma hsCRP was measured by immunoturbidimetry in 202 subjects, aged over 50 yr, who participated in health-check survey in a rural area of Jeollanamdo, Korea. Plasma hsCRP level was 1.9 +/- 3.0 mg/dL. There were significant associations between hsCRP levels and age, white blood cell counts, blood glucose, diastolic blood pressure, HDL-cholesterol, body mass index and smoking status. In stepwise multivariate regression analysis, white blood cell counts, age, blood glucose, smoking status and body mass index were independent correlates of hsCRP levels. In conclusion, plasma hsCRP levels were associated with several cardiovascular risk factors, and these data are compatible with the hypothesis that CRP levels may be a marker for preclinical cardiovascular disease. Further what we need now are prospective studies to evaluate the association of C-reactive protein concentrations with subsequent cardiac events.     

Chronic Inflammation Is Correlated with Percentage of Body Fat Independent of the Burden of Infection

The aim of this population-based study was to investigate the association of the percentage of body fat (BF) and high-sensitivity C-reactive protein (hs-CRP) when the infectious burden was adjusted for. A total of 1,546 subjects were randomly selected. BF was determined using bioelectrical impedance analysis. Sera were analyzed for IgG antibodies to Chlamydia pneumoniae, herpes simplex virus type 1, Helicobacter pylori, and cytomegalovirus using ELISA. Measurement of C-reactive protein (CRP) by a high-sensitivity CRP assay was performed. A linear relationship between an increase in the number of pathogens and CRP concentrations was observed (p = 0.007). Age-adjusted serum hs-CRP levels were correlated with percentage of BF in men (r = 0.28, p < 0.0001) and women (r = 0.37, p < 0.0001). In multiple regression analyses, hs-CRP showed significant correlations with percentage of BF after controlling for age, sex, cardiovascular risk factors, and the infectious burden was divided into two, three, and four pathogens [(β = 0.24, p < 0.0001), (β = 0.2 1, p < 0.0001), and (β = 0.23, p = <0.0001), respectively]. In conclusion, there was a strong association between hs-CRP and percentage of body fat independent of viral and bacterial pathogens that had been previously associated with coronary artery disease as well as carotid atherosclerosis.     

Familial correlation and heritability for cardiovascular risk factors

The goal of this study was to describe the overall genetic contribution of phenotypic variation to cardiovascular disease. The study population included 7,589 family members of 1,891 families, derived from Korean Medical Insurance Corporation. The risk factors considered were systolic blood pressure (SBP), diastolic blood pressure (DBP), body mass index (BMI), and high serum cholesterol. The levels of cardiovascular disease risk factors were adjusted for age, gender, smoking and alcohol drinking. Heritability was estimated from the slope of the line linear regression of offspring on mid-parent. All risk factors showed positive familial correlations, and correlations were generally lower for spouses than for parent- offspring pairs. Spouse correlations showed increasing patterns with age. Parents-offspring correlations showed little variation with age, suggesting that the observed correlations with CVD risk factors were primarily due to genetic influences rather than environmental effects. Estimated heritabilities were 26% for BMI, 26% for high serum cholesterol, 19% for SBP, and 9% for DBP. These results highlight the importance of considering genetic factors in studies of cardiovascular risk factors.     

Serum C-reactive Protein Level and Distribution in Chronic Obstructive Pulmonary Disease Versus Healthy Controls: a Case–Control Study from Iran

Inflammation has a contributive role in the development and progression of chronic obstructive pulmonary disease (COPD).The present study was designed to determine the level and the distribution of C-reactive protein (CRP) and erythrocyte sedimentation rate (ESR) in COPD compared with controls. Ninety patients with COPD presented to an outpatient hospital clinic and 50 controls who were selected among personals of the same hospital entered the study. Serum high sensitive CRP (hs-CRP) was measured by immunoturbidimetric method and the ESR by Westergren method. Receiver operating characteristic curve was applied to determine a cutoff point for differentiation of the COPD and control group. In statistical analysis, the patients and controls were compared regarding levels and distribution of hs-CRP and ESR. Mean age of patients and controls was 67?±?11.6 and 51.3?±?6.7 years, respectively (p?=?0.001). Mean hs-CRP was significantly higher (4.76?±?5.6 vs 1.72?±?1.68 mg/L, p?=?0.001) but mean ESR was nonsignificantly higher (9.1?±?11.2 vs 7.2?±?7.4 m/h, p?=?0.95) in patients than control. Serum hs-CRP at 1.55 mg/L, differentiated patients and controls at sensitivity of 77.3 % and specificity of 60 %. Serum hs-CRP >3 mg/L was observed in 39 (44.3 %) patients and 9 (18 %) controls (p?=?0.001) and >6 mg/L in 22 (25 %) patients and 2 (4 %) controls (p?=?0.001).Serum hs-CRP was significantly correlated with ESR in patient but not in control group (Spearman correlation coefficient?=?0.516, p?=?0.001). Serum hs-CRP and ESR was not correlated with age, weigh, smoking, and the severity of COPD. The results of this study indicated a systemic inflammatory process in COPD. Since inflammation has an important contribution in development of future pulmonary and extrapulmonary complications, serum CRP assessment will provide additional information beyond that achieved by conventional method of pulmonary function test.     

Body mass index and C-reactive protein in the healthy Korean aged men

The purpose of this study was to determine the relationship between plasma C-reactive protein (CRP) and body mass index (BMI) in elderly Korean men. A review of routine health examination records were done. Out of 671 eligible elderly men, who had their routine health examination in 2001 at a Health Promotion Center of a university hospital, 367 subjects were included after excluding inflammatory conditions. Subgroup analyses were performed on those who did not smoke and exercised regularly. Body composition, blood pressure, blood samples and radiologic examinations including chest radiography and abdominal ultrasound were obtained from each subject. Age, BMI, current smoking, regular exercise, WBC count, HDL-cholesterol, gamma glutamyl transferase were independently associated with logCRP. BMI subgroups according to the Asia-Pacific guideline did not show any difference in CRP level from each other by ANCOVA (p>0.05). However, BMI groups subdivided according to our criteria showed an association with CRP; the CRP level was lowest in the group of BMI between 18.5-19.4 and showed significant difference from BMI group of the highest BMI group (>or=29.0). Since elevated CRP levels are associated with higher risk for cardiovascular disease, lower BMI (18.5-19.4) levels may be advised for healthy elderly men in Korea.     

C-reactive protein and sleep-disordered breathing

STUDY OBJECTIVES: Over a 2-month period, to evaluate serum levels of C-reactive protein (CRP) in new patients with obstructive sleep apnea syndrome (OSAS), upper airway resistance syndrome (UARS), and absence of important comorbidity, as well as in normal controls. DESIGN: Cross-sectional analysis. SETTING: Sleep disorders clinic. PATIENTS: 239 successively monitored subjects: 156 subjects were diagnosed with OSAS, 39 with UARS, and 54 controls. INTERVENTIONS: none. MEASUREMENTS AND RESULTS: Clinical information (neurologic, general medical, and otolaryngology examination), body mass index, neck circumference, hip-waist ratio, Epworth Sleepiness Scale, 3 fatigue scales, Sleep Disorders Questionnaire, serum CRP, and polysomnography were collected. Analysis of variance indicated a significant difference between the groups for diastolic blood pressure, respiratory disturbance index, lowest SaO2, and body mass index. The mean serum CRP level was normal in all 3 groups. Only 15 (14 OSAS and 1 UARS) out of 239 subjects had high serum CRP values. CRP levels were significantly correlated with body mass index, esophageal pressures, hip-waist ratio, neck circumference, and blood pressure. Only body mass index was significantly associated with high CRP values; multiple regression showed: adjusted R2 = 0.115, beta = 0.345, P <.001. When men and women were considered separately, body mass index was again significantly associated with high CRP levels. CONCLUSION: Obesity is a risk factor for high serum CRP levels in patients with sleep-disordered breathing, as in the general population.     

Association of Hepatic Steatosis Index and Fatty Liver Index with Carotid Atherosclerosis in Type 2 Diabetes

Background/aim: Previous studies have suggested that the hepatic steatosis index (HSI) and fatty liver index (FLI) can be used as a predictor of non-alcoholic fatty liver disease (NAFLD). The aim of our study was to determine whether non-invasive indices of hepatic steatosis (HSI and FLI) are associated with carotid atherosclerosis in type 2 diabetes mellitus (T2DM).Methods: This was a cross-sectional study conducted in the T2DM patients (n=768). Carotid intima-media thickness (CIMT) was measured by the Color Doppler ultrasound. The HSI was calculated based on gender, body mass index (BMI), and transaminases level. The FLI was based on BMI, waist circumference (WC), triacylglycerols (TG) and g-glutamyl transferase (GGT).Results: Raised HSI and FLI levels was associated with increased CIMT levels in T2DM patients. Patients with greater CIMT had higher HSI (39.10 ± 5.70 vs 36.10 ± 4.18, P < 0.001) and FLI (46.35 (29.96, 65.54) vs 36.93 (18.7, 57.93), P < 0.001) than those with lower CIMT. Subjects with existing carotid plaque had higher HSI (38.28 ± 5.63 vs 35.69 ± 3.45 P < 0.001) and FLI (47.41 (27.77, 66.62) vs 37.19 (17.71, 51.78), P < 0.001) accordingly. HSI (r = 0.343, P < 0.001) and FLI (r = 0.184, P < 0.001) were positively related with the CIMT. In the linear regression, after full adjustment metabolic risk factors, smoking, and measures of insulin resistance, HSI and FLI were independently associated with CIMT (HSI: β = 0.011, FLI: β = 0.001, all P < 0.01). Further, logistic regression analyses showed that higher HSI and FLI had an impact on the risk for carotid atherosclerosis [HSI: OR (95%CI): 1.174 (1.123-1.228), FLI: OR (95%CI): 1.011(1.004-1.019), all P < 0.01]. Overall, increasing values of HSI and FLI were associated with CIMT (P < 0.05) significantly across different categories of age and hypertension.Conclusion: Current data suggest HSI and FLI are independently correlated with carotid atherosclerosis in T2DM. They may be a simple and useful marker for assessing the progression of diabetic macrovascular complications.