心力衰竭患者白细胞介素6表达和自然杀伤细胞活性的变化

目的探讨充血性心力衰竭(CHF)患者自然杀伤(NK)细胞活性的变化.方法选择NYHA Ⅱ～Ⅳ级的CHF患者48例作为观察组,30例健康体检者作为对照组.应用流式细胞仪测定全血NK细胞数目,并应用酶联免疫吸附法测定血清、培养上清中白细胞介素6(IL-6)含量,应用改良MTT法测定NK细胞杀伤活性.结果①CHF患者循环NK细胞和NK细胞杀伤活性显著降低,并与CHF程度呈负相关(r=-0.873,-0.949,均P＜0.01);②CHF 患者血清、培养上清和IL-2刺激后上清中IL-6显著增加(均P＜0.01),并与CHF程度呈正相关(r=0.988,0.984,0.982;均P＜0.01);③IL-2 刺激可能使CHF患者NK细胞杀伤活性增强(P＜0.01).结论NK细胞数目和活性下降可能是CHF患者免疫功能异常的机制之一;IL-2刺激可使CHF患者NK细胞杀伤活性增强;调节细胞免疫功能治疗可能改善CHF患者预后.     

心力衰竭患者血清白介素—1和白介素—6水平的变化及意义

充血性心力衰竭（ＣＨＦ）是心血管病的严重阶段,其发生机理目前尚不明确。我们采用双抗体夹心ＥＬＩＳＡ法测定了６２例ＣＨＦ患者的血清白细胞介素－１β（ＩＬ－１β）及白细胞介素－６（ＩＬ－６）等细胞因子的变化,旨在探讨其在ＣＨＦ发生发展中的作用。１资料与方...     

心力衰竭患者血清白细胞介素6及其可溶性受体变化与意义

目的 :观察充血性心力衰竭 ( CHF)患者血清白细胞介素 6( IL- 6)和可溶性白细胞介素 6受体 ( s IL-6R)水平的变化 ,探讨其与 CHF患者的病因和心功能的关系。方法 :用 EL ISA法检测 5 3例治疗前的 CHF患者( CHF组 )血清中 IL - 6和 s IL - 6R水平 ,并和 2 0例健康者 (对照组 )比较。结果 :CHF组血清 IL - 6和 s IL - 6R水平显著高于对照组 ( P <0 .0 1) ,且随心功能不全的恶化逐渐升高 ,心功能 ～ 级各亚组间差异有非常显著性意义( P <0 .0 1)。 IL - 6和 s IL - 6R水平分别与左室射血分数呈显著负相关 ( r =- 0 .81,P <0 .0 1和 r=- 0 .83 ,P <0 .0 1) ,s IL - 6R和 IL - 6水平呈显著正相关 ( r =0 .91,P <0 .0 1)。不同病因组间的 IL - 6及 s IL - 6R水平差异无显著性意义。结论 :CHF患者血清 IL- 6及 s IL- 6R显著升高 ,且与心力衰竭程度明显相关 ,与心力衰竭病因无关。测定 IL- 6和 s IL- 6R水平可作为 CHF诊断的实验指标 ,提示 IL- 6及 s IL- 6R参与 CHF的发生、发展过程     

充血性心衰患者TNF-α和IL-6变化及临床意义

目的探讨充血性心衰患者肿瘤坏死因子(TNF-α),白细胞介素-6(IL-6)的变化及意义.方法以56例充血性心衰患者和30例健康体检者为研究对象,采用酶联免疫双抗体夹心法测定血清TNF-α、IL-6浓度,用二维心脏超声测定左室射血分数(LVEF).结果①血清IL-6、TNF-α、去甲肾上腺素(NE)在CHF各组均升高,但心功能Ⅱ级组与对照组比较差异不显著(P＞0.05);心功能Ⅲ级,Ⅳ级组IL-6、TNF-α、NE明显高于心功能Ⅱ级和对照组(P＜0.05).IL-6、TNF-α、NE与LVEF呈高度负相关(r=-0.63,P＜0.01;r=-0.54,P＜0.05;r=-0.58,P＜0.01).②随心衰程度加重,血清TNF-α、IL-6和NE浓度越高.TNF-α与NE,IL-6与NE明显正相关(r=0.57,P＜0.01;r=0.51,P＜0.05).③随心衰程度加重,血清IL-6与TNF-α浓度越高,且二者呈正相关(r=0.39,P＜0.05).结论CHF患者血清TNF-α和IL-6浓度升高,尤其中重度CHF患者更加明显,并与LVEF呈负相关,提示血清IL-6、TNF-α水平可作为CHF严重程度的判断与预后指标.     

急性脑梗死患者血清IL-18、IL-6水平的变化及临床意义

目的观察急性脑梗死患者血清白细胞介素-18(interleukin-18,IL-18)、白细胞介素-6(interleukin-6,IL-6)水平变化,探讨炎症因子在脑梗死发病机制中的作用。方法采用ELISA法检测急性脑梗死患者(实验组)的血清IL-18和IL-6水平,并与32例健康对照组比较。结果急性脑梗死患者血清IL-18和IL-6水平为(168.30±27.42)pg/mL与(0.33±0.43)mg/mL,显著高于对照组(P<0.05)。结论急性脑梗死患者血清IL-18和IL-6水平明显升高,提示炎症反应参与了缺血性脑梗死的病理生理过程,早期炎症干预治疗可能有助于减轻脑组织缺血性损害,提高临床疗效。     

心力衰竭患者血清中TNF-α,IL-1及IL-6的变化及培哚普利对其影响

目的 :探讨心力衰竭 （CHF）患者血清中 TNF-α,IL-1及 IL -6的变化及培哚普利对其水平的影响。方法 :采用放射免疫方法检测 42例服用培哚普利的 CHF患者、42例常规治疗 CHF患者治疗前后及 3 0例健康人血清中TNF-α,IL-1及 IL-6的水平。结果 :184例 CHF患者较健康人血清中 TNF-α,IL-1及 IL-6显著增高 （P<0 .0 1） ,且随着心功能损害程度加重而升高。 2培哚普利组与常规治疗组治疗前后血清中 TNF-α,IL -1及 IL -6水平有显著性差异 （P<0 .0 1） ,且培哚普利组较常规治疗组治疗后血清中 TNF-α,IL -1及 IL -6降低更为明显。结论 :CHF患者TNF-α,IL-1及 IL-6水平与心功能状态密切相关。培哚普利比常规治疗具有较明显降低 TNF-α,IL-1及 IL-6的水平的作用 ,可减缓心脏损伤的进程 ,达到保护和改善 CHF患者的心功能     

白介素-6及其受体在充血性心力衰竭发生发展中的作用

白细胞介素 - 6 （IL- 6 ）是一种多功能细胞因子 ,IL- 6及其受体参与了充血性心力衰竭的发生发展 ,因此具有抗 IL- 6作用和 （或 ）抑制 IL- 6产生的治疗可能是未来预防和治疗充血性心力衰竭的方向之一     

心力衰竭患者肿瘤坏死因子-α和白细胞介素-6的变化及氯沙坦的影响

目的探讨充血性心力衰竭(CHF)患者血清肿瘤坏死因子-α(TNF-α)和白细胞介素-6(IL-6)的变化以及氯沙坦(losartan)对其影响.方法测定41例CHF患者(CHF组)和40例无CHF患者(无CHF组)血清TNF-α和IL-6浓度.41例CHF患者随机分为加用氯沙坦者(50 mg/d)和对照者,治疗前及治疗4周后彩色多普勒二维超声显像仪测定CHF左心室射血分数(LVEF).结果CHF组血清TNF-α和IL-6水平明显高于无CHF组,有非常显著性差异(P<0.0011).CHF组TNF-α、IL-6与LVEF呈显著负相关(γ=-0.654、γ=-0.502).治疗4周后,ΔTNF-α(治疗前、后差值)、ΔIL-6与ΔLVEF呈显著负相关(γ=-0.521、γ=-0.433).氯沙坦者治疗4周后TNF-α、IL-6水平显著下降,LVEF显著提高(P<0.01).结论CHF患者血清TNF-α、IL-6水平明显升高,与LVEF负相关;氯沙坦具有调节血清TNF-α、IL-6水平及改善LVEF的作用.     

心力衰竭患者炎性与抗炎性细胞因子表达的平衡失调

目的 :了解炎性与抗炎性细胞因子在充血性心力衰竭 (CHF)过程中的变化及其临床意义。方法 :用双抗体夹心ELISA法测定 12 2例CHF患者及 30例健康人血浆中肿瘤坏死因子 α(TNF α)、白细胞介素 6 (IL 6 )、白细胞介素 10 (IL 10 )的浓度。结果 :①CHF患者血浆中TNF α水平明显高于对照者 (P <0 .0 5或 <0 .0 1) ,且随着心力衰竭程度的加重 ,TNF α水平呈进行性增高 ;CHF患者血浆IL 6及IL 10水平 ,心功能Ⅲ、Ⅳ级者明显高于对照者 (P <0 .0 5或 <0 .0 1) ,而心功能Ⅱ级者与对照者相比差异无显著性意义。②TNF α与IL 6 (r =0 .6 18,P <0 .0 1)、IL 10 (r =0 .5 6 6 ,P <0 .0 1)均呈正相关 ,但TNF α与IL 10的比率 (TNF α/IL 10 )也随着心功能的恶化而升高 ,IL 10的升高与TNF α的升高相比明显不足。结论 :细胞因子的变化与心力衰竭的严重程度密切相关 ,CHF患者血中炎性细胞因子明显升高的同时伴有抗炎性细胞因子升高的相对不足 ,炎性与抗炎性细胞因子之间的平衡失调可能参与了CHF的发生发展     

充血性心力衰竭患者TNF-α和IL-6变化及临床意义

目的 :探讨充血性心力衰竭患者肿瘤坏死因子 (TNF α) ,白细胞介素 6 (IL 6 )的变化及意义。方法 :56例充血性心力衰竭患者和 30例健康体检者为研究对象 ,采用酶联免疫双抗体夹心法测定血清TNF α ,IL 6浓度 ,用二维心脏超声测定左室射血分数 (LVEF)。结果 :1 血清IL 6、TNF α、去甲肾上腺素 (NE)在CHF各组均升高 ,但心功能Ⅱ级组与对照组比较差异不显著 (P >0 0 5) ;心功能Ⅲ级 ,Ⅳ级组IL 6 ,TNF α ,NE明显高于心功能Ⅱ级和对照组 (P均 <0 0 5)。IL 6、TNF α、NE与LVEF呈高度负相关(r=- 0 6 3,P <0 0 1 ;r=- 0 54,P <0 0 5;r=- 0 58,P <0 0 1 )。 2 随心衰程度加重 ,血清TNF α、IL 6和NE浓度越高。TNF α与NE ,IL 6与NE呈明显正相关 (r =0 57,P <0 0 1 ;r =0 51 ,P <0 0 5)。 3 随心衰程度加重 ,血清IL 6与TNF α浓度越高 ,且二者呈正相关 (r =0 39,P <0 0 5)。结论 :CHF患者血清TNF α和IL 6浓度升高 ,尤其中重度CHF患者更加明显 ,并与LVEF呈负相关 ,提示血清IL 6、TNF α水平可作为CHF严重程度的判断与预后指标。     

白细胞介素-6和前白蛋白与左心室射血分数保留心力衰竭的相关性

目的探讨白细胞介素-6(IL-6)和前白蛋白(PA)与左心室射血分数保留心力衰竭(HF-PEF)的相关性。方法回顾性分析2017年6月至2019年5月中国医科大学附属第一医院老年心血管内科HF-PEF患者126例,根据彩色多普勒超声心动图结果将患者分为左心室舒张功能减低组和左心室舒张功能正常组,每组63例,比较2组患者的IL-6、PA和脑钠肽(BNP)等生化指标水平。多因素logistic回归分析HF-PEF的影响因素。采用SPSS 22.0统计软件对数据进行分析。结果左心室舒张功能减低组相比左心室舒张功能正常组年龄[(78.2±9.3)和(70.3±8.9)岁]、体质量指数[(25.2±3.4)和(23.8±2.8)kg/m~2]、BNP[(115.0±128.9)和(46.7±59.5)pg/ml]、E/e′[(13.4±5.5)和(9.2±1.8)]、IL-6[(5.3±5.2)和(3.3±3.4)pg/ml]水平高,白蛋白[(38.9±3.8)和(40.7±3.8)g/L]、PA[(21.5±4.6)和(24.7±5.2)mg/dl]水平低,差异均有统计学意义(P0.05)。Logistic回归分析结果表明年龄(OR=1.062,95%CI 1.007～1.119;P=0.026)及E/e′(OR=1.365,95%CI 1.127～1.653;P=0.002)与HF-PEF正相关,PA与HF-PEF负相关(OR=0.916,95%CI 0.842～0.997;P=0.043)。结论 HF-PEF与年龄及PA水平相关,检测PA可能有助于HF-PEF的早期诊断。     

The role of interleukin-6 in the failing heart

Clinical studies have shown that circulating levels of interleukin (IL)-6 and other IL-6 related cytokines are increased in patients with congestive heart failure (CHF). Plasma IL-6 concentrations are related to decreasing functional status of the patient and provide important prognostic information. Experimental studies have produced compelling evidence that IL-6 and IL-6 related cytokines play a pivotal role in the regulation of cardiac myocyte hypertrophy and apoptosis. This review summarizes clinical and experimental data from this rapidly evolving field, which, taken together, strongly suggest that IL-6 and IL-6 related cytokines are intricately involved in the pathophysiology of the failing heart.     

Respiratory sleep disorders in patients with congestive heart failure

Respiratory sleep disorders (RSD) occur in about 40-50% of patients with symptomatic congestive heart failure (CHF). Obstructive sleep apnea (OSA) is considered a cause of CHF, whereas central sleep apnea (CSA) is considered a response to heart failure, perhaps even compensatory. In the setting of heart failure, continuous positive airway pressure (CPAP) has a definite role in treating OSA with improvements in cardiac parameters expected. However in CSA, CPAP is an adjunctive therapy to other standard therapies directed towards the heart failure (pharmacological, device and surgical options). Whether adaptive servo controlled ventilatory support, a variant of CPAP, is beneficial is yet to be proven. Supplemental oxygen therapy should be used with caution in heart failure, in particular, by avoiding hyperoxia as indicated by SpO₂ values >95%.     

慢性充血性心力衰竭患者窦性心率震荡的检测和临床意义

目的探讨慢性充血性心力衰竭（CHF）患者窦性心率震荡的变化特点及其与心功能的关系,并进行预后判断。方法对100例（男61例,女39例;年龄45～86岁,平均62岁）慢性充血性心力衰竭患者和50例教师体检者进行24h动态心电图检查、心脏超声、常规12导联心电图,计算出心率震荡（HRT）的参数：震荡初始值（TO）及震荡斜率值（TS）,并分析两组的参数值,心脏超声测量左心室内径及射血分数。结果CHF组TO值（0.4839±0.1421）%,对照组TO值-（0.3467±0.1352）%;CHF组TS值（2.1638±0.2547）ms/RR间期,对照组TS值（6.2434±1.3589）ms/RR间期,两组比较,差异均有统计学意义。随访中发现TO、TS均异常的CHF患者的再住院率、死亡率均显著高于其他组。结论窦性心律震荡能反映压力感受器敏感性和自主神经平衡性的变化,对CHF患者的危重程度评价和预后判断有一定的参考意义。     

Quantification of proinflammatory cytokines in the urine of congestive heart failure patients. Its relationship with plasma levels

AIMS: Proinflammatory cytokines are important mediators for the development of heart failure and increased plasma levels of these cytokines have been reported in patients with this condition. The purpose of the study was to investigate whether urine, a non-invasively obtained biological sample, was an appropriate medium in which to measure the concentration of tumor necrosis factor-alpha (TNF-alpha) and interleukin-6 (IL-6) in patients in the advanced stages of the disease. METHODS AND RESULTS: Thirty consecutive patients who had severe congestive heart failure (NYHA classes III and IV) and 30 matched healthy control subjects were enrolled. Plasma and the first urine of the day were collected and TNF-alpha and IL-6 were quantitatively analyzed by enzyme-linked immunosorbent assays. For every subject there were no differences in the amount of cytokine determined in plasma and urine. Both urine and plasma levels of IL-6 and TNF-alpha were greater in heart failure patients than in controls. CONCLUSION: Our results show that plasmatic and urinary levels of proinflammatory cytokines did not differ significantly. Thus, urine may be a good milieu in which to study these cytokines and may have diagnostic, prognostic and therapeutic implications.     

Elevated level of interleukin-6 predicts organ failure and severe disease in patients with acute pancreatitis

BACKGROUND AND AIM: Cytokines play an important role in the pathogenesis of acute pancreatitis (AP). The aim of the present paper was to study the profile of anti- and proinflammatory cytokines in AP and to determine their predictive value for severity of AP, organ failure and mortality. METHODS: Consecutive patients with AP were included in the study. Cytokines were measured in those patients who presented within the first 72 h of the onset of AP. Plasma levels of proinflammatory cytokines tumor necrosis factor (TNF)-alpha, interleukin (IL)-Ibeta, IL-6 and anti-inflammatory cytokine IL-10 were measured on days 1, 3, 7 and 14 of AP. RESULTS: Of 108 patients, 30 presented within 72 h of the onset (mean age 40.27 +/- 13.89 years; 22 males). Of the 30 patients, 13 (43.3%) had severe and 17 (56.7%) had mild pancreatitis. Eleven (36.7%) patients developed organ failure and three died. The level of IL-6 on day 3 was significantly higher in severe pancreatitis than in mild pancreatitis (146.29 +/- 57.53 pg/mL vs 91.42 +/- 71.65 pg/mL; P = 0.04) and was significantly higher in patients who developed organ failure compared with those who did not (161.59 +/- 53.46 pg/mL vs 88.16 +/- 65.50 pg/mL; P = 0.004). At a cut-off value of 122 pg/mL on day 3, IL-6 predicted organ failure and severe pancreatitis with a sensitivity and specificity of 81.8% and 77.7%, respectively. TNF-alpha and IL-10 were detectable only in one-third of patients and were not related to the severity of pancreatitis, while Il-1beta was not detectable. CONCLUSION: Elevated levels of IL-6 predicted organ failure and severe pancreatitis and suggested its pathophysiological significance in AP.     

Long-term maintenance therapy with prazosin in congestive heart failure

We evaluated the effects of long-term maintenance therapy with oral prazosin (6-20 mg, mean 14 +/- 2 mg/d) in 14 patients with congestive heart failure. The patients were followed for 6 +/- 1 months. Eleven of the fourteen patients reported subjective improvement. Two patients required increased diuretics because of gain in body weight. Systolic blood pressure showed a slight but sustained decrease suggesting persistent vasodilator effect. Reductions in echocardiographic left ventricular end-diastolic (6.35 +/- 0.25-5.88 +/- 0.25 cm, p less than 0.05) and end-systolic (5.16 +/- 0.35-4.73 +/- 0.28 cm, p less than 0.05) diameters were observed at 2 months. However, the cardiothoracic ratio on chest x ray was unaltered. Maximum exercise tolerance time increased in eight patients (57%) during prazosin therapy. Improvement in exercise tolerance time was observed in patients with most marked clinical improvement, suggesting presence of cardiac reserve. Two patients died suddenly after reporting subjective improvement. This study shows sustained clinical improvement in most patients with heart failure treated with oral prazosin.