The Role of High-sensitivity C-reactive Protein, Interleukin-6 and Cystatin C in Ischemic Stroke Complicating Atrial Fibrillation

This study examined the role of high-sensitivity C-reactive protein (hsCRP), interleukin-6 (IL-6) and cystatin C in ischemic stroke complicating atrial fibrillation (AF) and the relationship of systemic inflammation with this disease in order to identify AF patients who are at high risk of stroke and need optimal anticoagulant therapy.A total of 103 AF patients, simple (n=75) or complicated by ischemic stroke (n=28), and 112 control subjects were recruited.IL-6 level was detected by using enzyme linked immunosorbent assay.Cystatin C and hsCRP levels were measured by means of a particle-enhanced immunonephelometric assay.The results showed that the AF patients had higher levels of hsCRP (P=0.004), IL-6 (P=0.000), and cystatin C (P=0.000) than control subjects.Plasma hsCRP level was increased in the AF patients with ischemic stroke as compared to the patients with simple AF (P=0.036).The AF patients who had the level of hsCRP exceeding 3.83 mg/L were at a higher risk than those with hsCRP level lower than 3.83 mg/L (P=0.030).After adjusting for other factors, cystatin C remained positively associated with IL-6 (r=0.613) and hsCRP (r=0.488).It was concluded that hsCRP is positively correlated with ischemic stroke complicating AF and may be a risk factor independent of other risk factors for AF.Elevated cystatin C level is also indicative of the increased risk of AF.

Mechanisms of C-reactive protein, interleukin-6 and soluble CD40L blood concentration changes after coronary stent implantation

Background: The pathway linking inflammation and thrombosis has been extensively studied. Experimental data support that arterial thrombosis also induces a detectable inflammatory response, which in turn, activates prothrombotic pathways closing a vicious circle that interconnects inflammation and thrombosis. Aim: We designed this study to investigate the causes of inflammatory markers increase after coronary angioplasty. Methods: We analyzed the interrelationship of thrombotic and inflammatory markers and the effect of blocking thrombus formation on the inflammatory response in 50 patients undergoing high thrombotic risk coronary angioplasty. The relationship of platelet number to soluble CD40 Ligand, Interleukin-6 and C-reactive protein blood levels was studied. Half of the study population was treated with standard antithrombotic drugs and the other half with the standard therapy plus platelet GP IIb-IIIa receptor inhibitor Eptifibatide. Results: There was a clear correlation between basal platelet count and sCD40L basal levels, post-angioplasty sCD40L increase and post-angioplasty IL-6 levels and post-angioplasty IL-6 levels with post-angioplasty CRP levels. Postangioplasty CRP, IL-6 and sCD40L blood levels were influenced by GP IIb-IIIa treatment in patients with angiographic thrombus. Conclusion: Platelet aggregation induces a proinflammatory response which is blocked by a GP IIb-IIIa inhibitor agent, particularly in patients with patent angiographic thrombus.

Effect of flurbiprofen combined with prednisolone on interleukin-6 in elderly surgery patients

Objective: To determine the effect of flurbiprofen combined with prednisolone on interleukin-6 in elderly surgery patients. Methods: In this double-blind randomized controlled study, patients aged 65 to 80 who were undergoing spinal fusion surgery for disc herniation were administered flurbiprofen 100 mg (P group, flurbiprofen group), prednisolone 0.6 mg/kg (D group, prednisolone group), prednisolone 0.6 mg/kg plus flurbiprofen 100 mg (P + D group, flurbiprofen + prednisolone group) or normal saline (S group, saline group) 15 minutes before the induction of anesthesia. Plasma samples were collected before surgery (T0) and on day 1 (T1), day 2 (T2) and day 3 (T3) following surgery. At the same time, systemic inflammatory response syndrome (SIRS) was assessed by SIRS criteria. The levels of interleukin-6 (IL-6), tumor necrosis factor-α (TNF-α) and C-reactive protein (CRP) for collected samples were measured. Results: Other groups had significantly lower levels of IL-6, CRP and occurrence of SIRS than S group (p < 0.05). Compared to groups P and D, the levels of IL-6 and CRP in P + D group were significantly lower on T1 (p < 0.05). Peak levels of IL-6 in all groups were presented on T1 (p 0.05). The levels of CRP within three days were significantly different but did not show peak levels (p > 0.05). Conclusion: Compared to prednisolone or flurbiprofen, combining flurbiprofen with prednisolone in elderly surgery patients led to an increased suppression of IL-6.

Serum Y-Box Binding Protein 1 (YBX-1) and Interleukin 6 (IL-6) Are Associated with Metastasis in Breast Cancer Patients

Objectives: The aim of this study was to assess the levels of Y-box binding protein 1 (YBX-1) and interleukin 6 (IL-6) in the sera of metastatic and non-metastatic breast cancer patients (BC), investigate their clinicopathological significance and to analyze their potential use as biomarkers of breast cancer metastasis. Methods: The study included ninety subjects sub-grouped equally into metastatic BC, non-metastatic BC and healthy volunteers. Serum YBX-1 and IL-6 were quantified using ELISA technique while CA 15-3 was quantified using IRMA kit. Clinical data were collected from patients’ records. Results: YBX-1 (p < 0.001), IL-6 (p < 0.001) and CA15-3 (p = 0.017, 0.001) were significantly elevated in metastatic and non-metastatic BC patients compared to healthy controls, however, only YBX-1 (p 0.001) showed a significant difference with cancer metastasis. Generally, YBX-1 and IL-6 were correlated with worse histological grade and late clinical stage in breast cancer patients and they were also associated with axillary lymph nodes involvement and positive vascular invasion in metastatic BC patients. Serum YBX-1 and IL-6 levels were positively correlated to each other (rs = 0.615, p < 0.001) and they showed high sensitivity and specificity compared to CA 15-3 (p < 0.001 and p = 0.004 for YBX-1 and IL-6 respectively) for predicting cancer metastasis. Conclusions: Serum YBX-1 and IL-6 are potential biomarkers of breast cancer patients with significant correlation with bad clinicopathological characteristics. Serum YBX-1 and IL-6 have superior sensitivity and specificity compared to CA15-3 and can serve as potential follow up and prognostic markers.

Association between Metabolic Syndrome Components and Serum High-Sensitivity C-Reactive Protein or Interleukin-6 Levels among Congolese Adults

Metabolic syndrome (MetS) and its components have been linked to elevated serum levels of inflammatory biomarkers such as C-reactive protein, interleukin-6, interleukin-1β and tumor necrosis factor alpha. The aim of our study was to address the association between MetS components with serum hs-CRP and IL-6 levels among Congolese adults. A total of 357 participants (aged 30 - 87 years) were included in this cross-sectional study. Anthropometrics were collected and fasting blood sampled for assessment of fasting blood glycaemia (FBG), lipids and inflammatory parameters using commercially available assays. NCEP-ATPIII criteria were used to define MetS. The Median (IQR) hs-CRP and IL-6 levels were higher in participants with MetS than in those without ([7 (4, 14) versus 6 (4, 8)] mg/L;p = 0.092 and [23.8 (20.9, 27.6) versus 22.3 (19.5, 25.0)] pg/mL;p = 0.002). hs-CRP and IL-6 levels were significantly higher in females with MetS than in those without, but not in males. Among participants, only TG was correlated with hs-CRP (r = 0.149, p = 0.007), and a significant correlation was observed between TG (r = 0.116, p = 0.037), FBG (r = 0.208, p = 0.000), HDL-C (r = −0.119, p = 0.034) and SBP (r = 0.143, p = 0.010) and IL-6. In males, hs-CRP levels were positively correlated with TG (0.316;p = 0.000), negatively with HDL-C (r = −0.290, p = 0.0022), without such correlations in females. In Ames, IL-6 levels were positively correlated with FBG (r = 0.202;p = 0.035), and negatively with HDL-C (r = −0.249, p = 0.009). Significant correlations between IL-6 levels and FBG (r = 0.214;p = 0.000) or SBP (r = 0.227, p = 0.000) were observed in females. Logistic regression analysis was carried out to identify the relationship between MetS components and hs-CRP or IL-6. Values of area under receiver-operating characteristic (ROC) curves suggest potential use of serum hs-CRP (AUC = 0.675) and IL-6 (AUC = 0.656) as diagnostic biomarkers of MetS. Combination of hs-CRP and IL-6 improved diagnosis accuracy, yielding a 0.698 ROC curve area. MetS components are associated with hs-CRP and IL-6 levels among adults Congolese. Combining the two biomarkers hs-CRP and IL-6 improves Mets diagnostic accuracy compared to hs-CRP or IL-6 alone.

Heparin-binding proteins from boar seminal plasma affecting the release of prostaglandins and interleukin-6 by porcine endometrial and cervical cells and bovine endometrial cells

The objectives of this study were to explore whether heparin-binding proteins, separated by fast protein liquid chromatography from boar seminal plasma influence the release of prostaglandins F2α, (PGF2α), E2 (PGE2) and interleukin-6 (IL-6) by porcine endometrial and cervical cells and even bovine endometrial cells. In Experiment I, we showed that release of PGF2α by endometrial epithelial, endometrial stromal and cervical stromal cells to the medium was inhibited (p α (TNFα) stimulated release of IL-6 by endometrial and cervical stromal cells after 24 h incubation, but in the presence of heparin-binding proteins, this stimulation was attenuated. Release of PGF2α by cryopreserved (Experiment II) and primary (Experiment III) cervical stromal cells was significantly inhibited after 3 h incubation with 66 - 95.4 μg of heparin- binding proteins. A significant inhibition of PGE2 release by cryopreserved and primary cervical stromal cells was already achieved after incubation with 16.5 - 23.9 μg of heparin-binding proteins. The release of IL-6 by cryopreserved cells was stimulated after 3 h incubation with heparin- binding proteins in a dose dependent manner in contrast to the release of IL-6 by freshly isolated cervical stromal cells. We also found (Experiment IV) that porcine heparin-binding seminal plasma proteins inhibited release of PGF2α and stimulated release of IL-6 by bovine endometrial epithelial cells. In conclusion, a group of heparin-binding proteins separated by fast protein liquid chromatography from boar seminal plasma inhibit PGF2α, PGE2 and stimulate IL-6 release by porcine endometrial and cervical cells and even by bovine endometrial cells. Thus, these proteins have a similar effect as the entire seminal plasma.

C反应蛋白、降钙素原和白细胞介素6在早期急性胰腺炎合并感染中的诊断价值分析

目的探讨C反应蛋白(CRP)、降钙素原(PCT)、白细胞介素6(IL-6)在早期急性胰腺炎(AP)合并感染中的诊断价值。方法选择2022年1月至2024年1月滕州市中心人民医院消化内科收治的112例AP患者,依据患者入院时的严重程度将其划分为3组分别为轻症组、中重症组、重症组。记录入院首日、3 d、7 d,IL-6、CRP、PCT水平;同时以Spearman相关性分析病情严重程度与IL-6、CRP、PCT相关性。结果入院首日,3组患者IL-6、CRP、PCT水平均高于各指标正常参考范围。IL-6水平入院首日、入院3 d、入院7 d,重症组>中重症组>轻症组(P<0.05),且入院7 d>入院3 d>入院首日(P<0.05)。CRP水平,重症组、中重症组入院首日无差异(P>0.05),重症组、中重症组>轻症组(P<0.05);入院3 d、入院7 d,重症组>中重症组>轻症组(P<0.05),且入院7 d>入院3 d>入院首日(P<0.05)。入院不同时间三组PCT水平,均重症组>中重症组>轻症组(P<0.05);轻症组、中重症组入院不同时间段PCT水平,均入院3 d>入院7 d>入院首日(P<0.05);重症组入院3 d、入院7 d比较无差异(P>0.05),入院3 d、入院7 d>入院首日(P<0.05)。IL-6、CRP、PCT、IL-6+CRP+PCT对AP的AUC分别为0.82、0.85、0.90、0.94。IL-6、CRP、PCT预测AP的截断值分别为50.77 ng/L、124.56 mg/L、3.25μg/L。经ROC曲线分析显示,PCT为最佳AP预测因子,IL-6、CRP、PCT联合诊断准确性更高。结论PCT、CRP、IL-6单一或联合用于AP合并感染的诊断评估均具有一定价值,且三者联合应用诊断价值更高,可早期评价患者病情严重程度,指导疾病治疗,建议将其作为AP早期病情评估、预后预测参考指标。

NEU%、CRP及IL-6水平对白血病合并肺部感染的诊断价值探讨

目的:研究联合中性粒细胞百分比(Percentage of neutrophils,NEU%)、C-反应蛋白(C-reactive protein,CRP)及白介素-6(Interleukin-6,IL-6)在白血病合并肺部感染中的诊断价值。方法:选取2019年1月到2023年1月在我院收治的81例白血病患者作为研究对象。根据感染标准分为未感染组(36例)和感染组(45例)。感染组患者进一步根据感染程度分级,分为轻度感染组(32例)与重度感染组(13例)。对比未感染组和感染组外周血中NEU%、CRP、IL-6水平;对比轻度感染组与重度感染组外周血中NEU%、CRP、IL-6水平;探讨NEU%、CRP、IL-6水平单独及联合检测对白血病合并感染的诊断效能。结果:对比两组外周血中NEU%、CRP、IL-6水平,感染组3个指标均高于未感染组(P<0.05)。轻度感染组中NEU%、CPR、IL-6指标水平均低于重度感染组(P<0.05)。NEU%特异度为50.31%,灵敏度为80.20%,准确度为69.83%,CRP特异度为50.00%,灵敏度为88.37%,准确度为75.69%,IL-6特异度为40.36%,灵敏度为92.32%,准确度为72.32%,三项联合特异度为67.32%,灵敏度为96.51%,准确度为86.62%(P<0.05)。结论:白血病合并肺部感染中联合NEU%、CRP及IL-6水平明显升高,且三者联合对白血病合并肺部感染诊断价值高。

miR-17-5p、IL-6及MCP-1联合检测对卵巢子宫内膜异位症患者术后复发的预测价值

目的 分析研究血清微小RNA-17-5p(miR-17-5p)、白细胞介素-6(IL-6)及单核细胞趋化蛋白1(MCP-1)联合检测对卵巢子宫内膜异位症(OEM)患者术后复发的预测价值。方法 选取郑州大学第三附属医院2019年1月至2022年12月收治的OEM患者作为研究对象,将其命名为OEM组(n=100),另选同期在本院进行体检的健康女性为对照组(n=60)。比较两组血清miR-17-5p、IL-6及MCP-1水平;OEM组患者在入院后均进行手术与药物对症治疗,在治疗结束后对患者随访12个月。以多因素Logistic回归分析OEM患者术后复发的影响因素,并绘制ROC曲线分析血清miR-17-5p、IL-6、MCP-1水平对OEM患者术后复发的预测价值。结果 OEM组的血清miR-17-5p水平低于对照组,IL-6、MCP-1水平均高于对照组,差异有统计学意义(t=11.015、59.651、38.199,均P<0.05);多因素Logistic回归分析显示,囊肿直径>5 cm(OR=1.828)、ASRM分期为Ⅲ~Ⅳ期(OR=1.815)、血清miR-17-5p水平降低(OR=2.042)、IL-6水平升高(OR=2.136)及MCP-1水平升高(OR=1.966)均是OEM患者术后复发的独立危险因素(P<0.05);ROC曲线分析显示,血清miR-17-5p、IL-6、MCP-1水平及联合检测的曲线下面积(AUC)分别为0.816、0.781、0.745、0.933,联合检测优于单一检测(P<0.05)。结论 miR-17-5p、IL-6及MCP-1联合检测对OEM患者术后复发具有一定预测价值。

老年舒张性心力衰竭合并肌少症患者可溶性生长刺激表达基因2蛋白、肌红蛋白、白细胞介素-6水平与心功能的相关性

目的 探讨老年舒张性心力衰竭(DHF)合并肌少症患者外周血可溶性生长刺激表达基因2蛋白(sST2)、肌红蛋白(Myo)、白细胞介素-6(IL-6)水平与心功能的相关性。方法 将122例DHF患者根据有无肌少症分为DHF合并肌少症组60例和DHF组62例,另将健康体检者58例、单纯肌少症患者60例分别纳入对照组、单纯肌少症组,检测各组外周血sST2、Myo、IL-6水平和心功能指标[左室射血分数(LVEF)、心排血量(CO)、心率(HR)、每搏输出量(SV)和心脏指数(CI)]。采用Pearson相关分析法分析sST2、Myo、IL-6与各心功能指标的相关性。绘制受试者工作特征(ROC)曲线,分析sST2、Myo、IL-6单独及联合诊断DHF合并肌少症的效能。结果 与对照组、单纯肌少症组相比,DHF组、DHF合并肌少症组sST2、Myo、IL-6水平和HR均升高,LVEF、CO、SV和CI均降低,差异有统计学意义(P<0.05);与DHF组相比,DHF合并肌少症组sST2、Myo、IL-6水平和HR均升高,LVEF、CO、SV和CI均降低,差异有统计学意义(P<0.05)。sST2、Myo、IL-6均分别与LVEF、CO、SV、CI呈负相关(P<0.001),均与HR呈正相关(P<0.001);sST2、Myo、IL-6、LVEF、SV是DHF合并肌少症的独立影响因素(P<0.05);sST2、Myo、IL-6联合诊断DHF合并肌少症的曲线下面积为0.936,诊断效能优于三者单独检测。结论 老年DHF合并肌少症患者外周血sST2、Myo、IL-6水平显著升高,且sST2、Myo、IL-6均与心功能指标显著相关,三者联合检测对DHF合并肌少症的诊断效能较高。

基于决策曲线分析抗RA33、IL-6及hs-CRP水平对类风湿关节炎治疗反应性的预测价值

目的基于决策曲线分析抗类风湿关节炎-33(抗RA33)、白细胞介素-6(IL-6)及超敏C反应蛋白(hs-CRP)水平对类风湿关节炎(RA)患者治疗反应性的预测价值。方法选取2021年1月至2023年8月该院收治的102例RA患者,收集患者临床资料并检测其血清抗RA33、IL-6及hs-CRP水平。使用甲氨蝶呤与依那西普治疗半年后,根据治疗反应性分为反应良好组与无反应组。采用Pearson相关分析RA患者抗RA33、IL-6、hs-CRP水平与RA疾病活动评分(DAS28)的相关性,多因素Logistic回归分析RA患者治疗无反应的影响因素。绘制受试者工作特征(ROC)曲线,分析抗RA33、IL-6、hs-CRP在RA无反应中的效能。采用决策曲线分析抗RA33、IL-6、hs-CRP单独与联合预测RA患者治疗无反应的净收益情况。结果治疗半年后,反应良好和中度的患者共80例(反应良好组),无效22例(无反应组)。反应良好组病程短于无反应组,DAS28评分低于无反应组(P<0.05)。反应良好组血清抗RA33、IL-6、hs-CRP水平低于无反应组(P<0.05)。Pearson相关分析显示,血清抗RA33、IL-6、hs-CRP水平与DAS28评分均呈负相关(P<0.05)。多因素Logistic回归分析结果显示,DAS28评分及抗RA33、IL-6、hs-CRP水平为RA患者治疗无反应的影响因素(P<0.05)。ROC曲线显示,血清抗RA33、IL-6、hs-CRP单独及联合预测患者治疗无反应的曲线下面积分别为0.729、0.814、0.831、0.948,三者联合的预测价值更高。决策曲线分析显示,在大多合理阈值范围内,血清抗RA33、IL-6、hs-CRP联合预测对RA患者治疗反应性的总体净收益高于单独预测的净收益。结论抗RA33、IL-6、hs-CRP水平与RA患者治疗反应性密切相关,三者联合预测治疗无反应的临床价值及净收益较高。

Interleukin-6 and ratio of plasma interleukin-6/interleukin-10 as risk factors of symptomatic lumbar osteoarthritis

AIM To determine the role of cartilage oligomeric matrix protein(COMP), interleukin(IL)-6, IL-10 and ratio of IL-6/IL-10 as risk factors of symptomatic lumbar osteoarthritis(OA) in postmenopausal women with estrogen deficiency.METHODS Case-control study had been conducted in Sanglah General Hospital from October 2015 until March 2016. The blood samples were obtained and analyzed by enzyme-linked immunosorbent assay(ELISA).RESULTS From 44 pairs of samples which divided into 44 samples as case group and 44 samples as control group showed that high level of COMP in estrogen deficiency postmenopausal women were not at risk(OR = 0.7; 95%CI: 0.261-1.751; P = 0.393) for symptomatic lumbar OA(cut-off point 0.946). Estrogen deficiency in postmenopausal women with the high level of IL-6 had 2.7 times risk(OR = 2.7; 95%CI: 0.991-8.320; P = 0.033) for symptomatic lumbar OA from the low level of IL-6(cut-off point 2.264). At lower level of IL-10, there was no risk for symptomatic lumbar OA(OR = 0.6; 95%CI: 0.209-1.798; P = 0.345) than with the higher level of IL-10(cut-off point 6.049). While the high ratio of IL-6/IL-10 level in estrogen deficiency postmenopausal women gave 3.4 times risk(OR = 3.4; 95%CI: 1.204-11.787; P = 0.011)for symptomatic lumbar OA than the low ratio of IL-6/IL-10 level(cut-off point 0.364).CONCLUSION High ratio of IL-6/IL-10 plasma level was the highest risk factor for causing symptomatic lumbar OA in postmenopausal women with estrogen deficiency.

SAA、IL-6、CRP及T淋巴细胞亚群联合检测在类风湿性关节炎患者中的应用价值

目的探讨血清淀粉样蛋白A(SAA)、白细胞介素-6(IL-6)、C反应蛋白(CRP)及T淋巴细胞亚群联合检测在类风湿性关节炎患者中的应用价值并进行相关危险因素分析。方法选取2020年10月至2023年5月在玉林市第一人民医院确诊为类风湿性关节炎的患者66例为类风湿关节炎组,同期选择体检健康者33名为对照组,比较两组SAA、IL-6、CRP及T淋巴细胞亚群水平的差异。结果类风湿性关节炎组SAA、IL-6、CRP、CD3^(+)T%及CD4^(+)T%水平高于对照组,CD8^(+)T%水平低于对照组,差异有统计学意义(P<0.05)。Spearman相关分析结果显示,IL-6与SAA、CRP、CD3^(+)T%及CD4^(+)T%呈正相关(P<0.05);CD4^(+)T%与SAA、IL-6、CRP、CD3^(+)T%呈正相关(P<0.05);IL-6、CD4^(+)T%分别与CD8^(+)T%呈负相关(P<0.05)。二元logistic回归分析显示,SAA、IL-6、CRP、CD3^(+)T%及CD4^(+)T%是类风湿性关节炎患者的危险因素,而CD8^(+)T%是该类患者保护因素(P<0.05)。结论类风湿性关节炎患者SAA、IL-6、CRP是类风湿性关节炎患者的危险因素,T淋巴细胞亚群免疫异常与该疾病发生发展密切相关,多项目联合检测对类风湿性关节炎临床诊疗及评估病情有重要价值。

CHANGES OF INTERLEUKIN-6 AND RELATED FACTORS AS WELL AS GASTRIC INTRAMUCOSAL pH DURING COLORECTAL AND ORTHOPAEDIC SURGICAL PROCEDURES

Objective To investigate the changes of perioperative serum levels of interleukin-6(IL-6), C-reactive protein (CRP), and cortisol, as well as gastric intramucosal pH (pHi) and plasma lactate, aiming to compare systemic changes and tissue perfusion during colorectal and orthopaedic surgical procedures. Methods Twenty patients were randomly assigned to two groups, 10 cases of operation on vertebral canal, 10 cases of colorectal radical operation.Venous blood was drawn at 1 day before operation, 2, 4, and 6 hours following skin incision, and 1 day after operation, in order to measure serum IL-6, CRP, and cortisol.pHi and plasma lactate were also measured at the same time points.Results Serum concentrations of IL-6 and cortisol increased gradually following operation, reaching the peak value at 6 hours from the beginning of operation.CRP was not detectable until the first day after operation.Peak concentration of IL-6 had positive relationship with CRP.These variables changed more significantly in colorectal group than that in orthopaedic group (P<0.05).pHi decreased gradually, reaching the lowest level at 4 hours from the beginning of operation, and to more extent in colorectal group than that in orthopaedic group (P<0.05).Conclusion IL-6 may reflect tissue damage more sensitively than CRP.Colorectal surgery might induce systemic disorder to more extent, in terms of immuno-endocrinal aspect as well as tissue perfusion, reflected with pHi.

齐刺环跳穴干预坐骨神经损伤大鼠海马IL-1β、IL-6、TNF-α及GFAP表达影响的实验研究

目的 通过观察齐刺环跳穴对坐骨神经损伤大鼠海马白细胞介素-1β(Interleukin-1β,IL-1β)、白细胞介素-6(Interleukin-6,IL-6)、肿瘤坏死因子-α(Tumor Necrosis Factor-alpha, TNF-α)及胶质纤维酸性蛋白(Glial Fibrillary Acidic Protein, GFAP)表达的影响,探讨齐刺环跳穴治疗坐骨神经痛的中枢镇痛机制。方法 60只SD大鼠随机分为假手术组、模型组、齐刺组、单刺组及药物组,每组12只,采用钳夹法制备大鼠坐骨神经损伤模型。造模第2天开始进行针刺及药物干预,连续14 d。观察各组大鼠干预前后坐骨神经功能指数(Sciatic nerve Function Index, SFI)、热缩足反射潜伏期(Paw Withdrawal Latency, PWL)的变化,ELISA法检测海马组织IL-1β、IL-6、TNF-α蛋白表达水平,实时定量PCR法及免疫组化法检测海马组织GFAP表达水平。结果 干预前,与假手术组比较,其余各组大鼠PWL值、SPI值显著降低(P<0.01),与模型组比较,齐刺组干预后大鼠PWL值、SPI值显著改善(P<0.01)。ELISA法、RT-PCR法及免疫组化检测结果显示,模型组、齐刺组、单刺组、药物组IL-1β、IL-6、TNF-α、GFAP表达较假手术组显著升高(P<0.01);与模型组相比,齐刺组、单刺组、药物组IL-1β、IL-6、TNF-α、GFAP表达显著下降,齐刺组表达低于单刺组及药物组(P<0.01)。结论 齐刺环跳穴缓解坐骨神经痛的镇痛机制可能与下调海马炎症因子表达,抑制星形胶质细胞活化,从而降低中枢痛觉敏化程度有关。

血清PCT、IL-6、HBP和CRP水平对脑梗死合并肺部感染的预测价值

目的探究降钙素原(PCT)、白细胞介素6(IL-6)、肝素结合蛋白(HBP)和C反应蛋白(CRP)对脑梗死合并肺部感染的预测价值。方法选取2022年7月至2023年6月于南京医科大学附属江宁医院就诊的145例脑梗死患者作为脑梗死组,根据其是否并发肺部感染分为合并感染组(76例)和单纯脑梗死组(69例)。另选取同期于该院进行体检的健康人群61例作为健康人对照组。收集各组一般临床资料,检测并比较血清生化指标。采用Logistic回归分析法进行脑梗死合并肺部感染的危险因素分析。绘制ROC曲线,使用ROC曲线下面积(AUC ROC)评估各个指标对脑梗死合并肺部感染的诊断价值。结果年龄、PCT、IL-6、HBP和CRP是脑梗死并发肺部感染的独立危险因素(P<0.05)。ROC曲线分析表明,PCT、IL-6、HBP和CRP对预测脑梗死合并肺部感染均有一定的临床价值,四项联合预测的敏感性和特异性分别为85.47%和75.36%,均高于PCT、IL-6、HBP和CRP单独预测(P<0.05)。结论血清PCT、IL-6、HBP和CRP在脑梗死并发肺部感染患者血清中呈高表达,四者均可作为脑梗死合并肺部感染的诊断指标,且四项联合检测可有效提高诊断的准确性。

川崎病合并支原体感染病儿瓣膜炎性损伤与IL-6/STAT3信号通路表达变化的关系分析

目的探讨川崎病(KD)合并支原体感染病儿瓣膜炎性损伤与白细胞介素-6(IL-6)/信号转导及转录激活蛋白3(STAT3)信号通路表达变化的关系。方法前瞻性选取2018年1月至2022年12月安阳市妇幼保健院收治的50例KD合并肺炎支原体(MP)(KD-MP)感染病儿为感染组,另选取同期收治的106例单纯KD病儿为未感染组,比较感染组与未感染组病儿瓣膜炎性损伤情况。再根据KD病儿是否伴有冠状动脉损伤(CAL)损伤分为CAL组(n=84)、无CAL组(n=72),比较两组病儿IL-6和STAT3表达水平,通过多因素logistic回归分析KD病儿发生CAL的危险因素。比较KD并CAL不同预后病儿IL-6和STAT3表达变化,使用受试者操作特征曲线(ROC曲线)分析IL-6、STAT3水平对KD并CAL病儿预后的预测价值。结果感染组KD病儿发热时间、住院时间、初诊CAL发生率均高于未感染组(P<0.05);感染组KD病儿C反应蛋白(CRP)、降钙素原(PCT)、红细胞沉降率(ESR)、IL-6 mRNA表达水平和STAT3 mRNA表达水平均高于未感染组[(51.32±12.62)mg/L比(36.58±10.98)mg/L,(1.33±0.35)μg/L比(1.21±0.31)μg/L,(84.69±15.66)mm/h比(49.62±16.43)mm/h,4.14±1.09比3.06±1.15,2.81±0.89比1.68±0.54,均P<0.05]。CAL组病儿IL-6、STAT3 mRNA表达水平高于无CAL组(4.13±1.22比2.56±0.87,2.46±0.71比1.55±0.44,均P<0.05);多因素回归分析结果显示,MP感染、IL-6 mRNA、STAT3 mRNA表达是KD病儿发生CAL的独立危险因素(均P<0.05)。KD并CAL预后良好组病儿IL-6、STAT3 mRNA表达水平低于预后不良组(3.57±1.06比4.57±1.13,1.94±0.58比2.87±0.87,均P<0.05),ROC曲线结果显示IL-6、STAT3及其联合预测KD并CAL预后的曲线下面积(AUC)分别为0.75、0.81、0.91,且联合检测的AUC高于IL-6、STAT3单独检测(均P<0.05)。结论KD合并MP病儿瓣膜炎性损伤更为严重,IL-6/STAT3信号通路活化是其危险因素,且该信号通路对KD并CAL病儿预后有较高的预测价值。

人白细胞介素-6重组蛋白的制备

目的利用大肠杆菌原核表达系统制备人白细胞介素-6(IL-6)重组蛋白,并对蛋白进行纯化,为后期制备IL-6标准物质和质控品提供候选物质基础。方法以现有IL-6原核表达质粒6His-IL-6-pET-28a(+)为模板,通过PCR扩增目的片段,并在其N端添加His标签。通过酶切连接的方式,将该段基因克隆至pRSFDuet载体,随后转化BL21感受肽获得表达菌株。利用异丙基硫代半乳糖苷(IPTG)进行诱导,得到IL-6重组蛋白,利用镍柱亲和层析技术对蛋白进行纯化,并比对两个表达菌株的蛋白表达量,选择高表达菌株进行后续实验。结果成功构建6His-IL-6-pRSFDuet原核表达质粒,根据蛋白表达比对情况选择6His-IL-6-pET-28a(+)质粒进行后续实验,确定最适IPTG诱导浓度(0.2 mmol/L)、诱导温度(20℃)、诱导时间(20 h)等条件,在BL21中高效表达重组IL-6蛋白,纯化后的蛋白不仅可通过临床检测,且稀释倍数与检测结果之间呈线性关系。结论成功获得低成本、高浓度、高纯度的IL-6重组蛋白,为后续IL-6标准物质和质控品的制备奠定了基础。

曲前列尼尔对肺动脉高压患者心肺功能及IL-6、HMGB1水平的影响

目的:探讨曲前列尼尔对肺动脉高压患者心肺功能及白细胞介素6(IL-6)、高迁移率族蛋白B1(HMGB1)水平的影响。方法:选取86例肺动脉高压患者为研究对象,根据治疗方式不同分为对照组和观察组,每组各43例。对照组患者予以波生坦口服治疗;观察组患者在对照组治疗基础上予以曲前列尼尔静脉泵注,疗程均为24周。对比两组患者治疗前后心功能等级变化情况和血浆N末端B型利钠肽原(NT-proBNP)水平、6 min步行距离(6MWD)、肺动脉收缩压(PASP)、用力肺活量(FVC)、第1秒用力呼气容积(FEV1)、Borg呼吸困难指数(BDI)、血清IL-6和HMGB1水平及不良反应发生情况。结果:治疗后,观察组患者心功能等级优于对照组(P<0.05)。治疗后,两组患者血浆NT-proBNP水平及PASP、BDI均降低(P<0.05),且观察组低于对照组(P<0.05);FVC、FEV1、6MWD均升高(P<0.05),且观察组高于对照组(P<0.05);血清IL-6、HMGB1水平均降低(P<0.05),且观察组低于对照组(P<0.05);两组不良反应发生率无统计学差异(P>0.05)。结论:在波生坦基础上予以曲前列尼尔治疗肺动脉高压患者,可以更好改善心肺功能,抑制IL-6、HMGB1等促炎因子表达,减轻体内炎症反应,且安全性好。

不同神经阻滞麻醉方案对胃癌根治患者术后疼痛、认知功能及血清Aβ-42、IL-6、tau-181蛋白影响

目的 探讨不同神经阻滞麻醉方案[椎旁神经阻滞术(TPVB)和星状神经节阻滞术(SGB)]对胃癌根治患者术后疼痛、认知功能及血清β淀粉样蛋白-42(Aβ-42)、白细胞介素-6(IL-6)、tau-181蛋白影响。方法 选取河北北方学院附属第一医院2020年1月至2023年1月收治的择期行腹腔镜胃癌根治术的患者120例为研究对象,按照随机数字表法分为TPVB组和SGB组,各60例。两组术中全麻方式相同,TPVB组在麻醉诱导前进行椎旁神经阻滞术,SGB组在麻醉诱导前进行星状神经节阻滞术。分别采用视觉模拟评分法(VAS)及蒙特利尔认知评估量表(MoCA)评估患者疼痛情况及认知功能;监测两组术后不同时间点疼痛变化情况,比较两组术前、术后1、3 d的认知功能及血清Aβ-42、IL-6、tau-181蛋白水平变化。结果 两组术后1、6、12、24 h的VAS评分差异均无统计学意义(t=1.183、1.325、0.397、0.611,P>0.05);术后1、3 d两组MoCA量表评分比较为TPVB组评分低于SGB组,差异均有统计学意义(t=2.281、3.218,P<0.05);术后1、3 d两组血清指标比较均为TPVB组Aβ-42、IL-6及tau-181蛋白水平高于SGB组,差异均有统计学意义(t=2.065、2.122、2.558、2.167、2.515、2.596,P<0.05)。结论 TPVB及SGB两种神经阻滞麻醉方案对胃癌根治患者术后镇痛均有良好的效果,但SGB比TPVB在减轻患者炎症反应及认知功能的改善方面更具优势。