血清降钙素原、超敏C反应蛋白及白细胞介素-6在小儿急性上呼吸道感染中的诊断价值

目的:分析降钙素原(PCT)、超敏C反应蛋白(hs-CRP)和白细胞介素-6(IL-6)在小儿急性上呼吸道感染(AURI)时血清水平变化及其临床诊断价值。方法:分别收集100例AURI患儿,分为细菌感染组和病毒感染组(各50例),采用ELISA和免疫比浊法测定其血清PCT、hs-CRP、IL-6等指标,分析两病例组间及与健康体检儿童组间差异,并绘制细菌感染组上述检测指标的ROC曲线,比较其临床诊断价值。结果:细菌感染组血清PCT、hs-CRP与IL-6水平明显高于病毒感染组及健康对照组,差异有统计学意义(P0.05);病毒感染组PCT、hs-CRP和IL-6水平与健康对照组之间差异无统计学意义(P0.05)。对诊断细菌性AURI,血清PCT的ROC曲线下面积最大;灵敏度、特异度、阳性似然比明显高于hs-CRP和IL-6,阴性似然比显著低于IL-6,差异均有统计学意义(P0.05)。结论:血清PCT与hs-CRP、IL-6比较,其对小儿细菌性AURI具有更高的诊断价值及早期诊断意义。     

不稳定性心绞痛超敏C-反应蛋白和白细胞介素-6测定的价值

目的 评价测定血清超敏C反应蛋白（HS-CRP）和白细胞介素-6（IL-6）在不稳定性心绞痛诊断中的价值。方法 测定不稳定性心绞痛患者（UAP）56例，稳定性心绞痛患者（SAP）41例及40例健康对照者的HS-CRP和IL-6血清中的水平，并进行组间比较。结果 UAP组与SAP组、对照组比较。其HS-CRP、IL-6水平呈显著升高（P〈0．01）。SAP组与对照组相比，其CRP、IL-6水平也显著升高（P〈0．05）。结论 UAP的发生可能与炎症反应有关。测定血清HS-CRP和IL-6水平有助于UAP的早期诊断和病变程度的判断。     

研究肿瘤坏死因子-α和白细胞介素-6对接受不同治疗的绝经后女性C-反应蛋白的影响

目的 :研究肿瘤坏死因子 α(TNF α)和白细胞介素 6 (IL 6 )对接受雷洛昔芬 (Raloxifene ,RLX)及激素替代治疗(HRT)的绝经后女性C 反应蛋白 (CRP)的影响。方法 :将 390例研究对象随机分为 4个治疗组 ,在试验基线、第 3、6个月分别抽取空腹血样 ,测定CRP、TNF α、IL 6等的含量。结果 :从基线到第 6个月 (终点 )HRT组CRP水平明显升高 (P <0 0 0 1) ,RLX6 0组和RLX 12 0组CRP水平无明显变化 ( P >0 0 5 )。所有治疗组与安慰剂组比较 ,TNF α水平明显降低 ( P <0 0 1) ,而IL 6水平变化的差异没有显著性 (P >0 0 5 )。结论 :HRT和RLX对绝经后女性血清CRP水平产生的作用相反 ,HRT使CRP水平升高 ,而RLX使之降低 ,但不明显。血清CRP水平与TNF α和IL 6相关。     

白细胞介素3基因疗法和白细胞介素6基因疗法的联合造血调控作用

研究了成纤维细胞介导的ＩＬ－３基因疗法，ＩＬ－６基因疗法以两者联合后对造血系统的影响。结果发现，单用ＩＬ－基因疗法的小鼠白细胞总数，中性粒细胞，骨髓ＣＦＵ－ＧＭ，ＣＦＵ－ＭＫ等显著上升，但血小板上升程度经，单用ＩＬ－６基因疗法的小鼠血小板，中性粒细胞，骨髓ＣＦＵ－ＧＭ，ＣＦＵ－ＭＫ上晚为显著。     

过敏原引起的人皮肤晚期反应样本中白细胞介素6和8 mRNA的表达

采用原位杂交技术 ,测定白细胞介素 6 (IL 6 )和白细胞介素 8(IL 8)mRNA在变应原诱导的皮肤晚期反应标本中的表达。 14例标本中 ,两种细胞因子表达的阳性率分别为 12 14和 13 14。与相应对照比较 ,变应原攻击标本中表达上述细胞因子mRNA的阳性细胞数明显增加 (P <0 0 1)。     

急性冠脉综合征患者外周血CD4+CD28-T细胞与白细胞介素-6和C-反应蛋白的相关性研究

目的 检测急性冠脉综合征(ACS)患者外周血中CD4+ CD28-T细胞与IL-6和C-反应蛋白(CRP)相关性.方法 选取43例ACS患者,40例稳定性心绞痛(SAP),选取40例健康人作为正常对照.采用流式细胞分析仪测定CD4+ CD28-T细胞;IL-6和CRP水平分别采用ELISA法和特种蛋白分析仪进行测定.结果 ACS组患者的CD4+ CD28-T细胞数量和IL-6和CRP水平均显著高于SAP组(P＜0.001)或正常对照组(P＜0.001),而且ACS患者CD4+ CD28-T细胞与IL-6(r=0.79,P＜0.001)和CRP(r=0.50,P＜0.001)具有相关性.结论 ACS患者CD4+ CD28-T细胞数量的增高与IL-6和CRP高度相关,可能参与冠心病的病程进展.     

白细胞介素-6基因多态性与疾病的易感性

白细胞介索-6（interleukin-6，IL-6）作为一种多功能的炎症细胞因子，具有调节免疫应答、参与炎症反应、影响神经内分泌系统功能、活化破骨细胞等多种功能，参与了多种疾病的发生、发展。IL-6基因存在基因变异及基因多态性，这些基因多态性影响IL-6的转录和表达，造成个体间差异。IL-6基因还是多种临床疾病的相关基因，其基因多态性亦与这些临床疾病的易感性及发病机制相关。本文对IL-6的基因多态性与相关疾病的研究进展做一综述。     

探讨急性肠炎患者IL-6和CRP的表达水平及临床意义

目的分析白细胞介素-6(IL-6)和C反应蛋白(CRP)在急性肠炎患者中的表达及临床意义。方法选取本院2018年11月至2019年12月收治的60例急性肠炎患者作为观察组,另选本院同一时期的60例健康体检者为对照组。测定两组患者的IL-6与CRP水平,分析急性肠炎患者的IL-6及CRP水平与临床症状、粘膜病变情况评分的相关性。结果观察组患者IL-6和CRP水平显著高于对照组,差异具有统计学意义(P0.05);急性肠炎患者的IL-6及CRP水平与临床症状、粘膜病变情况评分呈正相关性(P0.05)。结论急性肠炎患者的IL-6与CRP表达水平显著高于正常人,且与临床症状、粘膜病变情况呈正相关。     

白细胞介素-6及其基因启动子多态性研究进展

白细胞介素-6是一种多功能细胞因子,具有多种生物学活性,包括调节免疫应答、调节造血系统、诱导急性期蛋白、调节肿瘤生长、产生疲劳等。其启动子基因多态性与白介素-6血清浓度、多种疾病、地理位置以及体重、年龄、性别、骨代谢等因素有关,并且不同的民族其基因型的分布和等位基因频率相差很大。本文综述了白介素-6的结构、产生和调节、受体以其重要的生物学活性和基因多态性,为一些疾病的预防及其基因治疗提供重要的参考依据。     

急性呼吸道感染患者血清CRP、PA和IL-6的检测及临床价值

目的:探讨血清C反应蛋白(CRP)、前白蛋白(PA)及白细胞介素-6(IL-6)在急性呼吸道感染性疾病中的诊断价值和临床意义。方法:检测56例急性呼吸道感染患者和30例健康对照者血清CRP、PA和IL-6的含量。结果:细菌感染组与健康对照组相比较,CRP及IL-6水平明显升高,PA则明显降低,组间差异有高度显著性(P<0.01)。病毒感染组与健康对照组相比较,血清CRP、PA及IL-6水平差异均无显著性(P>0.05)。细菌感染组治疗前、后CRP、PA和IL-6水平差异均有高度显著性(P<0.01)。结论:在急性呼吸道感染时,血清CRP、PA和IL-6的含量呈不同程度的变化有助于疾病的早期鉴别诊断,动态检测其变化对疗效判断有一定的临床价值。     

急性冠脉综合征患者血浆CRP,IL-6水平分析

目的 :通过对急性冠脉综合征 (ACS)患者与稳定型心绞痛 (SAP)患者血浆炎症标志物C反应蛋白(CRP)、白介素 6 (IL - 6 )水平的对比分析 ,探讨CRP、IL - 6与ACS的关系。方法 :选择ACS患者 5 7例分为急性心肌梗死组 (AMI组 ) 2 1例与不稳定型心绞痛组 (UAP组 ) 36例 ,其中不稳定型心绞痛组患者根据其病情的严重程度按Braunwald分级分成三组 :Ⅰ级 1 1例 ,Ⅱ级 1 0例 ,Ⅲ级 1 5例 ;对照组为稳定型心绞痛患者 4 8例。采用免疫比浊法测定患者血浆CRP水平 ,采用放射免疫分析法测定患者血浆IL - 6水平 ,并进行对比分析。结果 :AMI组和UAP组患者血浆CRP、IL - 6水平均高于对照组 (P <0 .0 1 ) ,且AMI组和UAP组两组间比较无显著性差异(P >0 .0 5 ) ;各组内CRP、IL - 6水平呈直线正相关 (P <0 .0 1 ,P <0 .0 5 )。结论 :ACS组患者血浆CRP、IL - 6水平显著升高并与疾病的严重程度有关 ,提示炎症在ACS的发病中可能起着重要作用     

Genome-wide linkage analysis for circulating levels of adipokines and C-reactive protein in the Quebec family study (QFS)

Adipose tissue synthesizes and secretes a wide range of biologically active molecules considered as inflammatory markers whose dysregulation in obesity plays a role in the development of insulin resistance and vascular disorders. Thus, finding genes that influence circulating levels of inflammatory biomarkers may provide insights into the genetic determinants of obesity-related metabolic diseases. We performed linkage analyses for fasting plasma levels of adiponectin, C-reactive protein (CRP), interleukin-6 (IL-6) and tumor-necrosis factor-alpha (TNF-alpha) in 764 subjects enrolled in the Quebec family study (QFS). A maximum of 393 pairs of siblings from 211 nuclear families were available for analyses. A total of 443 markers spanning the 22 autosomal chromosomes with an average inter-marker distance of 6.24 Mb were genotyped. Linkage was tested using both allele-sharing (SIBPAL) and variance component linkage methods (MERLIN). We showed suggestive evidence of linkage for plasma adiponectin levels on chromosome 15q21.1 [D15S659; logarithm of the odds (LOD) score = 2.23], 3q13.33 (D3S3023; LOD = 2.09), 20q13.2 (D20S197; LOD = 1.96) and 14q32.2 (D14S1426; LOD = 1.79). Evidence of linkage (SIBPAL) was also found for CRP on 12p11.23 (P = 0.001) and 12q15 (P = 0.0005) and for IL-6 on 14q12 (P = 0.002). None of these linkages remained significant after adjustment for body mass index. No evidence of linkage was found for TNF-alpha plasma levels. These results suggest that several QTLs can influence plasma levels of adiponectin and CRP, partly via their effects on adiposity.     

Hypoxemia increases serum interleukin-6 in humans

 Serum concentrations of interleukin (IL) 1 beta, IL-1 receptor antagonist (IL-1ra), IL-6, tumor necrosis factor (TNF) alpha, and C-reactive protein (CRP) were determined in ten healthy men at sea level and during four days of altitude hypoxia (4350m above sea level). The mean (SD) arterial blood oxygen saturations were 78.6 (7.3)%, 82.4 (4.9)%, and 83.4 (5.3)% in the first, second, and third days at altitude, respectively. A symptom score of acute mountain sickness (AMS) revealed that the subjects had mostly light symptoms of AMS. Mean serum IL-6 increased from 1.36 (1.04) pg × ml^–1 at sea level to 3.10 (1.65), 4.71 (2.81), and 3,54 (2.17) pg × ml^–1 during the first three days at altitude, and to 9.96 (8.90) pg × ml^–1 on the fourth day at altitude (ANOVA p =0.002). No changes occurred in serum concentrations of IL-1 beta, IL-1ra, TNF alpha, or CRP. The serum IL-6 were related to SaO₂, ( r =–0.45, p =0.003), but not to heart rates or AMS scores. In conclusion, human serum concentrations of IL-6 increased during altitude hypoxia whereas the other proinflammatory cytokines remained unchanged. The major role of IL-6 during altitude hypoxia seem not to be mediation of inflammation, instead, the role of IL-6 could be to stimulate the erythropoiesis at altitude. Accepted: 30 May 1997     

Clinical predictors of prognosis in patients with traumatic brain injury combined with extracranial trauma

Objective: The purpose of this study was to investigate whether routine blood tests on admission and clinical characteristics can predict prognosis in patients with traumatic brain injury (TBI) combined with extracranial trauma.Methods: Clinical data of 182 patients with TBI combined with extracranial trauma from April 2018 to December 2019 were retrospectively collected and analyzed. Based on GOSE score one month after discharge, the patients were divided into a favorable group (GOSE 1-4) and unfavorable group (GOSE 5-8). Routine blood tests on admission and clinical characteristics were recorded.Results: Overall, there were 48 (26.4%) patients with unfavorable outcome and 134 (73.6%) patients with favorable outcome. Based on multivariate analysis, independent risk factors associated with unfavorable outcome were age (odds ratio [OR], 1.070; 95% confidence interval [CI], 1.018-1.124; p<0.01), admission Glasgow Coma Scale (GCS) score (OR, 0.807; 95% CI, 0.675-0.965; p<0.05), heart rate (OR, 1.035; 95% CI, 1.004-1.067; p<0.05), platelets count (OR, 0.982; 95% CI, 0.967-0.997; p<0.05), and tracheotomy (OR, 15.201; 95% CI, 4.121-56.078; p<0.001). Areas under the curve (AUC) of age, admission GCS, heart rate, tracheotomy, and platelets count were 0.678 (95% CI, 0.584-0.771), 0.799 (95% CI, 0.723-0.875), 0.652 (95% CI, 0.553-0.751), 0.776 (95% CI, 0.692-0.859), and 0.688 (95% CI, 0.606-0.770), respectively.Conclusions: Age, admission GCS score, heart rate, tracheotomy, and platelets count can be recognized as independent predictors of clinical prognosis in patients with severe TBI combined with extracranial trauma.     

新生儿严重细菌感染血浆降钙素原与CRP和IL-6临床价值对比研究

目的：比较新生儿败血症及败血症休克血降钙素原（PCT）与C反应蛋白（CRP）和白介素-6（IL-6）的变化，探讨血中前降钙素原作为新生儿严重细菌感染诊断指标的敏感性、可靠性及对预后评估的作用。方法：采用半定量固相免疫测定法测定108例新生儿败血症（40例合并败血症休克）的血浆PCT水平，并比较同期CRP和IL-6水平。结果：新生儿败血症患儿血浆PCT阳性检出率明显高于正常对照组；其中败血症休克组尤为明显；败血症休克患儿发生率及死亡率随PCT值升高而升高；PCT与血清CRP、IL-6水平呈正相关；PCT的敏感性（87．5％）、特异性（82．4％）、阳性预测值（74．5％）和准确性（84．3％）最高。结论：新生儿败血症及败血症休克时PCT升高较早，且随病情的加重持续升高。PCr对新生儿败血症及败血症休克诊断指标的敏感性、可靠性及对预后评估优于CRP和IL-6。     

Unresponsiveness of C-reactive protein in the non-infectious inflammation of systemic lupus erythematosus is associated with interleukin 6

C-reactive protein (CRP) response is abnormal to a non-infectious inflammation in systemic lupus erythematosus (SLE). We evaluated the role of cytokines in this CRP unresponsiveness. The sera of 138 SLE patients and 71 rheumatoid arthritis patients were collected prospectively. SLE with infection had higher WBC count, ESR, CRP and C4 levels than those without infection. IL-6, IL-10 and IFN-gamma levels were higher in SLE with infection than SLE without infection. In SLE with infection, the CRP was correlated with the IL-6 (r = 0.77, P < 0.001) but not correlated with IL-10 and IFN-gamma. These data suggest that IL-6 may have a role in the unresponsiveness of CRP to a non-infectious inflammation of SLE.     

血清C反应蛋白对妊娠糖尿病的预测价值

目的探讨妊娠妇女血清c反应蛋白（CRP）预测妊娠糖尿病（GDM）的价值。方法对484名早孕妇女进行前瞻性研究,用免疫散射比浊法检测早孕妇女血清CRP并追踪至孕中晚期,根据孕中晚期75g糖耐量结果分为GDM组、IGT组,选取年龄、孕周相同的作为正常对照组,对3组间孕早期、孕中晚期的CRP进行分析。结果GDM的发生率为4．5％、IGT的发生率为5．12％。孕早期3组间血清CRP水平差异无统计学意义;孕中晚期GDM组、IGT组血清CRP浓度明显高于正常对照组,差异有显著性;孕前BMI与CRP存在正相关性。当校正孕前BMI进行协方差分析后,GDM组、IGT组血清CRP与正常组血清CRP差异有统计学意义,GDM组、IGT组差异无显著意义。结论妊娠早期血清CRP水平不能预测GDM的发生,孕中晚期血清CRP水平高低对GDM有诊断价值。