冠心病患者的血浆大内皮素与N末端脑钠肽水平及其与心功能的关系

目的:探讨冠心病(CHD)患者血浆大内皮素(Bigendothelin-1,Big ET-1)与N末端脑钠肽(NT-pro BNP)的水平及其与心功能的关系。方法:选择本院2014年1月-2014年5月收治的60例CHD患者为观察组,及同期接受体检的60例健康志愿者作为对照组,测定并比较两组的血浆大内皮素与N末端脑钠肽水平以及不同心功能分级CHD患者的血浆大内皮素与N末端脑钠肽水平的差异,分析血浆大内皮素与N末端脑钠肽水平与CHD患者心功能的关系。结果:观察组患者血浆Big ET-1和NT-pro BNP的水平均显著高于对照组,差异具有统计学意义(P0.05)。随着CHD患者的心功能分级的增加,其血浆Big ET-1和NT-pro BNP的水平逐渐升高,且各组之间比较差异均具有统计学意义(P0.05)。血浆Big ET-1、NT-pro BNP水平与CHD患者的心功能之间存在明显的正相关性(P0.05)。结论:CHD患者的血浆Big ET-1与NT-pro BNP水平均异常升高,且与患者的心功能呈正相关,监测其水平对判断CHD的病情及心功能可能具有重要的临床参考价值。     

重组脑钠肽对急性失代偿性心力衰竭患者炎症因子及肾素系统的影响

目的:探讨重组脑钠肽对急性失代偿性心力衰竭患者炎症因子及肾素系统的影响。方法:选择2014年7月~2016年7月于我院就诊的急性失代偿性心力衰竭患者160例,80例对照组行硝普钠治疗,80例实验组行重组脑钠肽治疗,观察两组治疗前后肿瘤坏死因子-α(TNF-α)、超敏C反应蛋白(hs-CRP)、白细胞介素-6(IL-6)、脑钠肽(BNP),醛固酮、血管紧张素Ⅱ、血浆肾素活性,血流动力学变化及心功能情况。结果:治疗前,实验组TNF-α、hs-CRP、IL-6、BNP低于对照组,差异有统计学意义(P0.05)。实验组醛固酮、血管紧张素Ⅱ、血浆肾素活性低于对照组,差异有统计学意义(P0.05)。实验组血流动力学低于对照组(P0.05)。实验组心功能较对照组改善更明显(P0.05);实验组副反应少于对照组(P0.05)。结论:急性失代偿性心力衰竭患者应用重组脑钠肽治疗可降低患者炎症因子,改善肾素系统。     

上胸段硬膜外阻滞治疗慢性心力衰竭合并房颤的临床研究

目的:比较上胸段硬膜外阻滞对有无合并房颤的扩张型心肌病心衰患者的疗效差异。方法:入选40例扩张型心肌病心衰患者,根据入院心电图有无房颤分为房颤组和非房颤组。所有患者均在抗心力衰竭常规治疗基础上,给予胸段硬膜外阻滞治疗4周,比较治疗前、后NYHA心功能分级、血浆N末端脑钠肽前体(NT-pro BNP)水平、左室射血分数(LVEF)、左室舒张期内径(LVEDD)及左房前后径(LAD)的变化情况。结果:与治疗前比较,两组患者经治疗后的NYHA心功能分级、NT-pro BNP、LVEF、LVEDD及LAD均明显改善(均P0.05),差异有统计学意义,但两组间各指标治疗前后的差值无统计学意义(P0.05)。结论:对于慢性心力衰竭合并房颤的患者而言,给予抗心力衰竭常规治疗基础上联合上胸段硬膜外阻滞治疗有效,且房颤的存在与否不影响上胸段硬膜外阻滞的疗效。     

主动脉球内囊反搏在心脏手术后心功能不全患者中的应用价值

目的:探讨主动脉球内囊反搏置入在心脏手术后心功能不全患者中的临床应用价值。方法:收集我院收治的心脏术后患者60例,随机分为对照组和实验组,每组各30例,患者均给予相应常规对症治疗,包括吸氧、强心、利尿、扩血管治疗,实验组患者在对照组基础上给予主动脉球囊反搏置入。治疗结束后,对两组患者治疗前后的连续心输出量(CCO)、心脏指数(CI)、人氨基末端B型脑钠肽前体(NT-pro BNP)、中心静脉压(CVP)水平以及临床疗效进行检测并比较。结果:治疗后,两组患者的CCO以及CI水平与治疗前相比均升高(P0.05),NT-pro BNP以及CVP水平均下降(P0.05);与对照组相比,实验组患者治疗后CCO以及CI水平较高,NT-pro BNP以及CVP水平较低(P0.05);实验组患者的治疗总有效率与对照组患者相比较高(P0.05)。结论:主动脉球内囊反搏植入能够显著升高心脏手术后心功能不全患者患者的心输出量,降低心脏后负荷,提高心脏功能,具有较好的临床疗效。     

血清NT-proBNP 与hs-CRP在预测急性ST段抬高性心肌梗死主要心脏 不良事件的价值

目的:探讨血清N末端脑钠肽前体(NT-pro BNP)及超敏C反应蛋白(hs-CRP)在预测急性ST段抬高性心肌梗死(STEMI)近期主要心脏不良事件(MACE)的价值。方法:选取172例STEMI患者为研究对象,按照住院期间是否发生MACE分为MACE组(n=56例)和非MACE组(n=116例),记录两组之间的入院时血清NT-pro BNP及hs-CRP水平及一般临床资料及实验室检查指标,将NT-pro BNP及hs-CRP水平按照四分位分组(Q_1、Q_2、Q_3和Q_4组),比较各组相关指标的差异,用多因素Logistic回归模型分析NT-pro BNP及hs-CRP水平与MACE发生的关系,用ROC曲线评价血清NT-pro BNP及hs-CRP预测MACE发生的价值。结果:MACE组和非MACE组在血清NT-pro BNP及hs-CRP存在显著的统计学差异(P0.05),MACE组两指标高于非MACE组;两者四分位分组之间MACE发生率存在统计学差异(P0.05),NT-pro BNP Q_4组和hs-CRP Q_4组中的MACE发生率高于NT-pro BNP Q_1~Q_2组及hs-CRP Q_1~Q_2组;多因素Logistic回归分析显示血清NT-pro BNP及hs-CRP是STEMI患者近期MACE发生的独立危险因素,且NT-pro BNP Q_1~Q_4组及hs-CRP Q_1~Q_4组之间风险值(OR)逐渐增大。ROC曲线提示血清NT-pro BNP及hs-CRP预测MACE发生的ROCACU分别为:0.887、0.797;灵敏度分别为91.1、85.6;特异度分别为82.6、75.2。结论:血清NT-pro BNP及hs-CRP可能是STEMI患者近期MACE发生的独立危险因素,应当引起临床重视。     

地高辛对老年慢性心衰患者血清CA125，BNP及MMP-9 水平的影响

目的:探讨地高辛片对老年慢性心力衰竭患者血清血清糖类抗原(CA125)、心钠肽(ANP)、脑钠肽(BNP)、基质金属蛋白酶9(MMP-9)及金属蛋白酶组织抑制剂(TIMP-1)水平的影响。方法:收集我院老年慢性心力衰竭患者100例,随机分为对照组和实验组,每组各50例,对照组患者给予常规治疗,实验组患者在对照组的基础上给予地高辛片。比较治疗前后两组患者血清糖类抗原(CA125)、心钠肽(ANP)、脑钠肽(BNP)、基质金属蛋白酶9(MMP-9)及金属蛋白酶组织抑制剂(TIMP-1)水平。结果:与治疗前相比,两组患者血清CA125、ANP、BNP及MMP-9水平降低,TIMP-1水平升高(P0.05);治疗后与对照组相比,实验组CA125水平(34.05±4.63)较低,ANP水平较低(216.98±27.65),BNP水平较低(437.62±45.26),MMP-9水平较低(550.17±65.15),TIMP-1水平较高(182.32±21.78)(P0.05)。结论:地高辛片能够改善老年慢性心力衰竭患者心肌功能,推测其机制可能与降低血清CA125、ANP、BNP、MMP-9水平,升高TIMP-1水平有关。     

慢性心力衰竭患者N端脑钠肽前体、脑钠肽与患者心脏超声参数及炎症因子的关系

目的:探讨慢性心力衰竭(CHF)患者N端脑钠肽前体(NT-proBNP)、脑钠肽(BNP)与患者心脏超声参数及炎症因子的关系。方法:选取2015年3月～2018年2月期间我院收治的CHF患者135例为研究组。根据纽约心脏病学协会(NYHA)心功能分级将研究组分为Ⅰ级组26例,Ⅱ级组34例,Ⅲ级组42例,IV级组33例。另选取同期于我院体检的健康志愿者30例为对照组。检测并比较对照组与研究组、不同NYHA心功能分级的血清标志物、炎症因子、心功能超声参数,采用Pearson相关性分析NT-proBNP、BNP与炎症因子、心功能超声参数的相关性。结果:研究组血清BNP、NT-proBNP、白介素-6(IL-6)、肿瘤坏死因子-α(TNF-α)、超敏C反应蛋白(hs-CRP)水平及左心室舒张末期内径(LVEDD)、左心室收缩末期内径(LVESD)均显著高于对照组,左心室射血分数(LVEF)则低于对照组(P0.05)。BNP、NT-proBNP、IL-6、TNF-α、hs-CRP水平及LVEDD、LVESD随心功能分级的升高而升高,LVEF随心功能分级的升高而降低(P0.05)。经Pearson相关性分析显示,CHF患者BNP、NT-proBNP与IL-6、TNF-α、hs-CRP、LVEDD、LVESD呈正相关,而与LVEF呈负相关(P0.05)。结论:血清NT-proBNP、BNP与CHF患者的心脏超声参数及炎症因子密切相关,可考虑将其作为临床诊断CHF的生物学指标。     

心脏瓣膜疾病患者术后危险因素及潜在预测指标初探

目的:评价心肌肌钙蛋白(cardiac troponin,c Tn T)、氨基末端脑钠肽前体(N-terminal pro·-brain natriuretic peptide,NT-pro BNP)对于心瓣膜疾病手术患者术后并发症的预测价值。方法:选取我院2014年1月~2015年12月收治的心瓣膜病患者共108例,入院即记录其年龄、性别、BMI指数、NYHA等,于患者出院1个月后开始随访,随访时间为18个月,根据随访结局分为预后良好组与预后不良组。生存曲线显示随访后的不良预后率;单因素、多因素Cox回归评价各因素对患者预后情况的影响程度;ROC曲线分析其对疾病预后的预测价值。结果:多因素Cox回归分析显示左心室舒张末期内径(left ventricular end-diastolic dimension,LVEDD)(P=0.022)、c Tn T(P=0.023)和NT-pro BNP(P=0.016)对患者术后不良预后存在影响,其中,LVEDD的影响程度最高(RR=2.142),其次为NT-pro BNP(RR=2.046);ROC曲线下NT-pro BNP联合c Tn T预测的AUC为0.856,其特异性为83.6%,敏感性为79.3%。结论:NT-pro BNP联合BNP对心瓣膜置换术后患者的预后有较好的预测价值。     

rhBNP治疗射血分数保留急性心力衰竭的临床研究

目的:探讨重组人脑利钠肽(rh BNP)对急性射血分数保留心力衰竭的临床治疗作用。方法:选择2008年6月至2014年6月间我院收治的20例急性射血分数保留心力衰竭患者为研究对象,其中10例予以硝普钠静脉注射48小时,10例予以rh BNP静脉注射48小时。48小时后,评估和比较两组患者心力衰竭的临床改善情况;72小时后,复查和比较两组患者血浆NT-pro BNP的下降值。结果:硝普钠组患者呼吸困难缓解积分(1.4±1.35)明显低于rh BNP组(3.5±0.71),rh BNP组呼吸困难缓解时间(3.68±1.69 h)显著短于硝普钠组(21.50±18.43 h),血浆NT-pro BNP浓度下降值(864.60±585.92 pg/ml)明显高于硝普钠组(423.30±284.06 pg/ml)。结论:rh BNP治疗急性射血分数保留心力衰竭的临床疗效优于硝普钠。     

长期服用复方丹参滴丸对老年急性心肌梗死患者PCI术后左室重构及炎症因子水平的影响

目的:探讨长期服用复方丹参滴丸对老年急性心肌梗死患者PCI术后左室重构及炎症因子水平的影响。方法:收集我院收治的的120例急性心肌梗死患者,随机分为实验组和对照组,每组60例。所有患者均行经皮冠状动脉介入术,术后对照组患者给予阿司匹林肠溶片和波立维治疗;实验组患者在对照组基础上给予复方丹参滴丸治疗。观察并比较两组患者治疗前后血清氨基末端脑钠肽(NT-pro BNP)、多普勒超声心动图[左舒张末期内径(LVEDD)、室间隔厚度(IVS)、左室舒张末期内径(LVD)水平]、血清白介素-6(IL-6)以及白介素-8(IL-8)水平。结果:与治疗前相比,两组患者治疗后的血清NT-pro BNP、IL-6、IL-8、LVEDD、IVS、LVD水平均下降,差异具有统计学意义(P0.05);与对照组相比,实验组患者的NT-pro BNP、IL-6、IL-8、LVEDD、IVS、LVD水平较低,差异具有统计学意义(P0.05)。结论:长期服用复方丹参滴丸能够明显抑制老年急性心肌梗死患者PCI术后的左室重构,这可能与其降低血清IL-6、IL-8水平有关。     

Head-to-head comparison of BNP and IL-6 as markers of clinical and experimental heart failure: Superiority of BNP

Activation of BNP and IL-6 are hallmarks of left ventricular (LV) dysfunction and congestive heart failure (CHF). To assess the relative activation of BNP and IL-6 in clinical and experimental heart failure, we performed a human study in which plasma N-terminal proBNP (NT-proBNP) and IL-6 were measured in a large group of patients in the chronic phase after myocardial infarction (MI) and an animal study in which LV gene expression of BNP and IL-6 was assessed in rapid ventricular pacing-induced heart failure. In the human study, NT-proBNP and IL-6 were measured by non-extracted, enzyme-linked immunoassay in 845 subjects (n=468 outpatients after MI, MONICA MI register Augsburg; and 377 siblings without MI, control). NT-proBNP (295+/-23pg/mL vs. CTRL 84+/-8, P<0.05) and IL-6 (2.7+/-0.1pg/mL vs. CTRL 2.1+/-0.1, P<0.05) were both elevated in subjects with MI. These increases were particularly pronounced in the presence of concomitant CHF (both P<0.01 vs. CTRL) and LV dysfunction (EF<45%, both P<0.05 vs. CTRL). However, NT-proBNP was significantly correlated with several cardiac structural and functional parameters (EF, LVMI, history of MI, CHF symptoms; all P<0.05) upon regression analysis whereas IL-6 was only correlated with history of MI (P<0.001). Accordingly, MI subjects with symptomatic LV dysfunction were detected by NT-proBNP with a greater sensitivity, specificity, and ROC-area (85%, 88%, and 0.87, respectively) as compared to IL-6 (69%, 53%, and 0.67, respectively). In the animal study, IL-6 and BNP expression were both significantly elevated in CHF (both P<0.05) but with a much greater absolute activation of BNP. In addition, BNP mRNA expression displayed a stronger inverse correlation with LV function (r=-0.74; P<0.001) than IL-6 (r=-0.53; P=0.001) and was a markedly more sensitive and specific molecular marker of LV dysfunction (sensitivity 91%, specificity 100%, ROC-area 0.94) than IL-6 (sensitivity 74%, specificity 83%, ROC-area 0.87). Our animal study provides evidence that IL-6 expression is activated in heart failure but to a significantly lesser degree than that of BNP. Both the stronger expression of BNP and the better correlation with LV function provide the molecular basis for a diagnostic superiority of NT-proBNP in clinical LV dysfunction and heart failure.     

血清肌钙蛋白I、N端前体脑钠肽和高敏C反应蛋白水平在充血性心力衰竭中的临床意义

目的：探讨血清肌钙蛋白I（cTnI）、N端前体脑钠肽（NT-proBNP）和高敏c反应蛋白（hs—CRP）水平在充血性心力衰竭（CHF）中的临床意义。方法：选取2010年1月-2012年12月在我院诊治的CHF患者210例（CHF组）,心功能按纽约心脏病协会（NYHA）分级：Ⅱ级88例、Ⅲ级96例和Ⅳ级26例。同时选取同期在我院行健康体检的自愿者30例为健康对照组。观察和比较两组血清hs．CRP、cTnI和NT．proBNP水平的差异及其与CHF患者心功能的心功能分级的相关系。结果：CHF组患者的血清hs-CRP．cTnI和NT．proBNP水平均较对照组明显增高,差异均有统计学意义（P〈0．0t）,且CHF患者的血清hs—CRP、cTnI和NT—proBNP水平随着心功能分级的增加而升高,差异有统计学意义（P〈0．01）。血浆hs—cI冲（F0．694,P〈0．01）水平,cTnI（r=0．782,P〈0．01）水平均与NT—proBNP水平呈显著正相关,血浆hs．CRP和cTnI水平也呈显著正相关（r==0．649,P〈0．01）。结论：CHF患者的血清hs—CRP、cTnI和NT-proBNP水平与其心功能分级显著相关,有助于评估CHF患者心功能不全的严重程度,可能与CHF患者的预后相关。     

奥美沙坦对慢性心力衰竭患者血清Galectin-3 水平的影响

目的：探讨奥美沙坦对慢性心力衰竭患者血清半乳凝集素-3（Galectin-3）水平的影响。方法：入选慢性心力衰竭患者100 例, 随机分为2 组,对照组和奥美沙坦治疗组,每组50 例,持续治疗3 月。其中对照组男32 例,女18 例,平均年龄（53.2± 11.8）;奥美 沙坦治疗组,男35 例,女15 例,平均年龄为（52.6± 13.2）岁。超声心动图评估治疗前后心功能,采用双抗体酶联免疫吸附(ELISA) 法测定血清Galectin-3 和N 末端B 型钠尿肽（NT-proBNP）水平。结果：对照组治疗和奥美沙坦治疗均可以改善慢性心力衰竭患 者的射血分数（EF）,降低NT-proBNP和Galectin-3 的浓度。其中,对比对照组患者,奥美沙坦治疗的患者心功能改善的程度更明 显,并伴有血清Galectin-3 的明显下降,差异具有统计学意义,P<0.05。Pearson 相关分析结果显示,慢性心力衰竭患者血清 Galectin-3 水平与心功能指标EF和NT-proBNP均相关,相关系数分别为-0.563和0.605,统计学有意义（P<0.05）。结论：奥美沙坦 治疗能有效降低慢性心力衰竭患者血清Galectin-3 水平和改善心功能。     

左西孟旦对急性心衰患者心功能及cTnT, hs-CRP, NT-proBNP水平影响

目的:观察左西孟旦对急性心力衰竭患者心功能及cTnT、hs-CRP、NT-proBNP水平影响。方法:选取在我院就诊的327例急性心力衰竭患者,按照治疗方式不同,分为观察组(常规治疗+左西孟旦)164例和对照组(常规治疗)163例,对比两组用药前及用药后24 h的左心射血分数(LVEF)、每搏输出量(SV)、肌钙蛋白T(cTnT)、超敏C反应蛋白(hs-CRP)和氨基末端B型利钠肽前体(NT-proBNP)水平。结果:治疗前,两组LVEF和SV比较,差异无统计学意义(P0.05)。治疗后观察组LVEF和SV均显著高于治疗前(P0.05);对照组LVEF显著高于治疗前(P0.05),SV与治疗前比较,差异无统计学意义(P0.05)。治疗后观察组LVEF和SV均显著高于对照组(P0.05)。治疗前两组cTnT、hs-CRP、NT-proBNP水平比较,差异无统计学意义(P0.05)。治疗后两组cTnT、hs-CRP、NT-proBNP水平均显著低于治疗前(P0.05)。治疗后观察组cTnT、hs-CRP、NT-proBNP水平显著低于对照组(P0.05)。两组不良反应比较差异无统计学意义(P0.05)。结论:左西孟旦治疗急性心力衰竭可明显增加心肌收缩力,抑制心肌重塑,减轻炎症反应,改善患者预后。     

Effects of growth hormone treatment on B-type natriuretic peptide as a marker of heart failure in adults with growth hormone deficiency.

OBJECTIVE: Patients with growth hormone deficiency (GHD) have abnormalities of cardiac structure and function. Growth hormone replacement (GHR) therapy can induce an increase in cardiac mass and improvement in left ventricular ejection fraction. B-type natriuretic peptide (BNP) levels have been successfully used to identify patients with heart failure and they correlate with both disease severity and prognosis. DESIGN: To investigate the effect of growth hormone replacement on BNP and inflammatory cardiovascular risk factors in adults with GHD we determined NT-proBNP and high sensitive C-reactive protein (CrP) before, 6 and 12 months after GHR. PATIENTS: Thirty adults (14 males, 16 females) with GHD mean age: 41.7+/-14.5 years (range: 17.2 to 75.4 years) were recruited from the German KIMS cohort (Pfizer's International Metabolic Database). RESULTS: During 12 months of GHR, a significant increase of IGF-1 (85.4+/-72.1 VS. 172.0+/-98 mug/dl; p=0.0001; IGF-1 SDS mean+/-SD: -3.85+/-3.09 VS. -0.92+/-1.82) was detectable. Mean baseline NT-proBNP was 112+/-130 pg/ml (range: 7 to 562). Twelve patients had normal BNP, whereas 18 revealed NT-proBNP values corresponding to those of patients with heart failure NYHA classification I (n=10), NYHA II (n=6) and NYHA III (n=2), respectively. Baseline BNP levels correlated significantly (p=0.044) with increased baseline CrP values. After 12 months of GHR, a significant decrease (p=0.001) in NT-proBNP levels mean: 68+/-81 pg/ml (range: 5 to 395) was detectable, associated with an improvement in NYHA performance status in 10 of the 18 with increased baseline NT-proBNP. CONCLUSIONS: Based on our study, approximately two-thirds of patients with GHD have increased NT-proBNP levels which may be useful as screening/diagnostic laboratory parameter for heart failure in such patients. GHR therapy decreases BNP levels in most patients with GHD.     

N-terminal pro-brain natriuretic peptide and adverse outcomes in Chinese patients with hypertrophic cardiomyopathy

Background: Although numerous studies have suggested that elevated N-terminal pro-brain natriuretic peptide (NT-proBNP) is positively correlated with cardiovascular events, especially the heart failure and heart failure-related death (HFRD), evidence of the association between NT-proBNP and the adverse outcomes of hypertrophic cardiomyopathy (HCM) is still relatively limited. The present study was performed to evaluate the relationship between NT-proBNP and outcomes in patients with HCM.Methods: Observational cohort methodology was used in the present study, and a total of 227 patients were included. And the patients were followed for 44.97 ± 16.37 months. Patients were categorized into three groups according to these NT-proBNP tertiles: first tertile (≤910 pg/ml, n=68), second tertile (913–2141 pg/ml, n=68), and third tertile (≥2151 pg/ml, n=69). The adverse outcomes of the present study were all-cause death (ACD) and cardiac death (CD).Results: According to the risk category of NT-proBNP, the incidence of ACD (P=0.005) and CD (P=0.032) among the three groups showed significant differences. Multivariate Cox regression analysis suggested that the ACD and CD in the third tertile have 7.022 folds (hazard risk [HR] = 7.022 [95% confidence interval [CI]: 1.397–35.282], P=0.018) and 7.129 folds (HR = 7.129 [95% CI: 1.329–38.237], P=0.022) increased risks as compared with those in the first tertile. Kaplan–Meier survival analyses showed that the cumulative risks of ACD and CD in patients with HCM tended to increase.Conclusion: The present study indicated NT-proBNP was a novel biomarker suitable for predicting adverse prognosis in patients with HCM, which may be used for early recognition and risk stratification.     

炙甘草汤加五参颗粒联合西药治疗冠心病的临床疗效及其对患者血清hs-CRP、NT-proBNP水平和内皮功能的影响

目的:探究炙甘草汤加五参颗粒联合西药治疗冠心病的临床疗效及其对患者血清超敏C反应蛋白(hypersensitive C-reactive protein,hs-CRP)、N末端B型脑钠尿肽前体(NT-Pro-brain natriuretic peptide,NT-proBNP)水平和内皮功能的影响。方法:选取2015年12月至2017年10月在我院接受治疗的冠心病患者80例,随机分为观察组和对照组,每组各40例。对照组接受西药治疗,观察组在西药治疗的基础上联合炙甘草汤加五参颗粒治疗。比较两组临床疗效及治疗前后hs-CRP、NT-proBNP、一氧化氮(Nitric oxide,NO)和内皮素(Endothelin-1,ET-1)水平的变化。结果:观察组和对照组治疗后的总有效率分别为90%和72.5%,观察组明显优于对照组(P0.05)。治疗前,两组血清hs-CRP、NT-pro BNP、NO、ET-1水平比较差异无统计学意义(P0.05)。与同组内治疗前比较,两组治疗后血清NT-pro BNP、hs-CRP、ET-1水平均明显下降,血清NO水平均明显升高,且观察组血清NT-proBNP、hs-CRP、ET-1水平均明显低于对照组(P0.05),血清NO水平显著高于对照组(P0.05)。结论:在西药治疗的基础上加用炙甘草汤加五参颗粒治疗冠心病临床疗效明显优于单用西药治疗,可能与其显著降低炎症和改善内皮功能有关。     

Utility of plasma apelin and other indices of cardiac dysfunction in the clinical assessment of patients with dilated cardiomyopathy

Apelin is a recently discovered peptide ligand reported to be involved in the regulation of cardiovascular homeostasis. The exact role of apelin in the pathophysiology of congestive heart failure has remained obscure, and the reported circulating levels of apelin in patients with heart failure have been contradictory. To establish the role of apelin in the assessment of cardiac dysfunction we measured plasma apelin levels in 65 patients with congestive heart failure caused by idiopathic dilated cardiomyopathy (IDC) and 14 healthy volunteers by specific radioimmunoassay. IDC patients were carefully examined including echocardiography, both-sided cardiac catheterization and cardiopulmonary exercise test. In addition, plasma levels of N-terminal pro-brain natriuretic peptide (NT-proBNP), N-terminal pro-atrial natriuretic peptide (NT-proANP), interleukin (IL)-6, tumor necrosis factor alpha (TNF-), epinephrine and norepinephrine were determined. Plasma apelin levels were similar in IDC patients (median 26.5 pg/ml, range < 3.40–97.6 pg/ml) and in control subjects (median 24.1 pg/ml, range 19.0–28.7 pg/ml; p = NS). Unlike the levels of NT-proBNP, IL-6, TNF-, and norepinephrine, plasma apelin levels did not reflect the severity of heart failure. Our study demonstrates that although disturbed apelin–APJ signalling in heart may play a role in the pathophysiology of heart failure, circulating apelin levels cannot be applied in the clinical assessment of patients with chronic left ventricular dysfunction.     

Plasma MR‐proADM Correlates to BMI and Decreases in Relation to Leptin After Gastric Bypass Surgery

Adrenomedullin (ADM) is a vasoactive peptide found to be related to obesity and its comorbidities: type 2 diabetes, hypertension, atherosclerosis, and coronary heart disease. ADM is increased both in plasma and in adipose tissue of obese individuals when compared to lean subjects and is considered as a member of the adipokine family. We determined plasma midregional proadrenomedullin (MR‐proADM) concentrations in a cohort of 357 subjects with BMI ranging from 17.5 to 42.3 kg/m² and no additional medical history. In parallel, 28 severely obese patients scheduled to undergo laparoscopic Roux‐en‐Y gastric bypass (RYGB) surgery were studied at two time points: before and 1 year after surgery. Outcome measurements were: MR‐proADM, cortisol, leptin, C‐reactive protein (CRP) thyroid‐stimulating hormone (TSH), creatinine and metabolic parameters. BMI correlated significantly to plasma MR‐proADM levels (r = 0.714, P < 0.001), also after adjustment for age and gender (r = 0.767, P < 0.001). In obese subjects, there was a positive relationship between MR‐proADM and leptin (r = 0.511, P = 0.006). Following RYGB, plasma MR‐proADM decreased from 0.76 ± 0.03 to 0.62 ± 0.02 pg/ml (P < 0.0001). RYGB‐induced changes in MR‐proADM correlated significantly to changes in leptin (r = 0.533, P = 0.004) and in CRP (r = 0.429, P = 0.023). We conclude that BMI is an independent predictor of circulating MR‐proADM levels. Weight loss after RYGB is associated with a significant decrease in plasma MR‐proADM, which is related to surgery‐induced changes in both circulating leptin and systemic inflammation.