Correlation of tumor necrosis factor receptor superfamily 13B variation with sporadic intracranial aneurysm and clinical characteristics in Han Chinese populations

BACKGROUND： Inflammatory reaction correlates with sporadic intracranial aneurysm （IA）. Variation of tumor necrosis factor receptor superfamily 13B （TNFRSF13B）, an inflammatory mediator receptor, may associate with IA. OBJECTIVE： To explore the relationship between TNFRSF13B gene and sporadic IA, as well as the clinical characteristics of sporadic IA. DESIGN, TIME AND SETTING： Case-control study of genetic association was performed at the Experimental Technology Center of China Medical University from November 2006 to January 2008. PARTICIPANTS： A total of 367 patients with IA, confirmed by three-dimensional computed tomography angiography, magnetic resonance angiography, digital subtraction angiography, and neuro surgery, were admitted to the Department of Neurosurgery, First Affiliated Hospital of China Medical University from 2006 to 2007, and were selected as the case group. All patients were Han, with no family history of IA. In addition, a total of 396 non-lA patients were selected as control subjects. METHODS： Peripheral vein blood was harvested to extract whole blood genomic DNA. Genotyping and TNFRSF13B single nucleotide polymorphism （SNP） rs11078355 G〉A allele polymorphisms were determined by polymerase chain reaction-restriction fragment length polymorphism. The relationship of TNFRSF13B SNP rs11078355 G〉A polymorphisms to IA and IA clinical characteristics were analyzed using the chi-square and two-sided test. MAIN OUTCOME MEASURES： TNFRSF13B SNP rs11078355 G〉A genotype distribution. RESULTS： In the IA patients, TNFRSF13B SNP rs11078355 G〉A genotype frequency was significantly increased （X2 = 16.306, odds ratio = 1.881,95% confidence interval = 1.382 2.560, P 〈 0.001）. In IA patients aged 〉 65 years, the frequency of TNFRSF13B SNP rs11078355 GA ＋ AA genotype was significantly greater than the GG genotype （X2 = 26.604, odds ratio = 5.248, 95% confidence interval = 2.662 10.345, P 〈 0.001）. CONCLUSION： The TNFRSF13B gene may associate with sporadic IA in Han Chinese populations In elderly patients, allele A may be an independent risk factor for IA, in addition to senile diseases, such as hypertension and diabetes mellitus.

Tumor necrosis family receptor superfamily member 9/tumor necrosis factor receptor-associated f

Hepatitis C virus(HCV)infection is an excellent immunological model for understanding the mechanisms developed by non-cytopathic viruses and tumors to evade the adaptative immune response.The antigen-specific cytotoxic T cell response is essential for keeping HCV under control,but during persistent infection,these cells become exhausted or even deleted.The exhaustion process is progressive and depends on the infection duration and level of antigenemia.During high antigenic load and long duration of infection,T cells become extremely exhausted and ultimately disappear due to apoptosis.The development of exhaustion involves the impairment of positive co-stimulation induced by regulatory cytokines,such as transforming growth factor beta 1.This cytokine downregulates tumor necrosis factor receptor(TNFR)-associated factor 1(TRAF1),the signal transducer of the T cell co-stimulatory molecule TNFR superfamily member 9(known as 4-1BB).This impairment correlates with the low reactivity of T cells and an exhaustion phenotype.Treatment with interleukin-7 in vitro restores TRAF1 expression and rescues T cell effector function.The process of TRAF1 loss and its in vitro recovery is hierarchical,and more affected by severe disease progression.In conclusion,TRAF1 dynamics on T cells define a new pathogenic model that describes some aspects of the natural history of HCV,and sheds light on novel immunotherapy strategies for chronic viral infections and cancer.

Effect of Wenhua Juanbi Recipe(温化蠲痹方) on Expression of Receptor Activator of Nuclear Factor Kappa B Ligand,Osteoprotegerin,and Tumor Necrosis Factor Receptor Superfamily Member 14 in Rats with Collagen-Induced Arthritis

Objective： To study the effect of Wenhua Juanbi Recipe（温化蠲痹方, WJR） on expression of receptor activator of nuclear factor kappa B ligand（RANKL）, osteoprotegerin（OPG）, and tumor necrosis factor receptor superfamily member 14（TNFRSF14, also known as LIGHT） in rats with collagen-induced arthritis（CIA）. Methods： CIA rats were generated by subcutaneous injection of bovine collagen type-Ⅱ at the tail base. Sixty CIA rats were randomly assigned（10 animals/group） to： model, methotrexate（MTX）-treated（0.78 mg/kg body weight）, and WJR-treated（22.9 g/kg） groups. Healthy normal rats（n=10） were used as the normal control. Treatments or saline were administered once daily by oral gavage. Rats were sacrificed at day 28 post-treatment and knee synovium and peripheral blood serum were collected. Toe swelling degree and expression of RANKL, OPG, and LIGHT were determined by Western blot and immunohistochemistry. Results： Compared with the normal group, toe swelling degree was significantly increased in the model group（P〈0.01）. After treatment, toe swelling degree decreased significantly in the WJR and MTX groups compared with the model group（P〈0.01）. Compared with the normal group, expression of RANKL and LIGHT were significantly increased and OPG significantly decreased in peripheral blood and synovium of the model group（P〈0.01）. Conversely, RANKL and LIGHT expression were significantly reduced and OPG increased in the WJR and MTX groups compared with the model group（P〈0.01）. No statistically significant difference existed between WJR and MTX groups. Conclusion： WJR likely acts by reducing RANKL expression and increasing OPG expression, thus inhibiting RANKL/RANK interaction and reducing LIGHT expression, thereby inhibiting osteoclast formation/activation to block bone erosion.

Diagnostic and Predictive Levels of Calcium-binding Protein A8 and Tumor Necrosis Factor Receptor-associated Factor 6 in Sepsis-associated Encephalopathy： A Prospective Observational Study

Background： Despite its high prevalence, morbidity, and mortality, sepsis-associated encephalopathy （SAE） is still poorly understood. The aim of this prospective and observational study was to investigate the clinical significance of calcium-binding protein A8 （S 100AS） in serum and tumor necrosis factor receptor-associated factor 6 （TRAF6） in peripheral blood mononuclear cells （PBMCs） in diagnosing SAE and predicting its prognosis. Methods： Data of septic patients were collected within 24 h after Intensive Care Unit admission fi-om July 2014 to March 2015. Healthy medical personnel served as the control group. SAE was defined as cerebral dysfhnction in the presence of sepsis that fulfilled the exclusion criteria. The biochemical indicators, Glasgow Coma Scale, Acute Physiology and Chronic Health Evaluation score II, TRAF6 in PBMC, serum S 100A8, S 10013, and neuron-specific enolase were evaluated in SAE patients afresh. TRAF6 and S 100A8 were also measured in the control group. Results： Of the 57 enrolled patients, 29 were diagnosed with SAE. The S 100A8 and TRAF6 concentrations in SAE patients were both significantly higher than that in no-encephalopathy （NE） patients, and higher in NE than that in controls （3.74 ± 3.13 vs. 1.08 ± 0.75 vs. 0.37 ± 0.14 ng/ml, P 〈 0.01 ; 3.18 ± 1.55 vs. 1.02 ± 0.63 vs. 0.47 ± 0.10, P 〈 0.01）. S 100A8 levels of 1.93 ng/ml were diagnostic of SAE with 92.90% specificity and 69.00% sensitivity in the receiver operating characteristic （ROC） curve, and the area under the curve was 0.86 （95% confidence interval [CI]： 0.76-0.95）. TRAF6-relative levels of 1.44 were diagnostic of SAE with 85.70% specificity and 86.20% sensitivity, and the area under the curve was 0.94 （95% CI： 0.88-0.99）. In addition, S 100A8 levels of 2.41 ng/ml predicted 28-day mortality of SAE with 90.00% specificity and 73.70% sensitivity in the ROC curve, and the area under the curve was 0.88. TRAF6 relative levels of 2.94 predicted 28-day mortality of SAE with 80.00% specificity and 68.40% sensitivity, and the area under the curve was 0.77. Compared with TRAF6, the specificity of serum S 100A8 in diagnosing SAE and predicting mortality was higher, although the sensitivity was low. In contrast, the TRAF6 had higher sensitivity for diagnosis. Conclusions： Peripheral blood levels of S 100A8 and TRAF6 in SAE patients were elevated and might be related to the severity of SAE and predict the outcome of SAE. The efficacy and specificity of S 100A8 for SAE diagnosis were superior, despite its weak sensitivity. S100A8 might be a better biomarker for diagnosis of SAE and predicting prognosis.

Tumor necrosis factor receptor superfamily member 9 is upregulated in the endothelium and tumor cells in melanoma brain metastasis

Aim:The cytokine receptor tumor necrosis factor receptor superfamily member 9(TNFRSF9)is mainly considered to be a co-stimulatory activation marker in hematopoietic cells.Several preclinical models have shown a dramatic beneficial effect of treatment approaches targeting TNFRSF9 with agonistic antibodies.However,preliminary clinical phase I/II studies were stopped after the occurrence of several severe deleterious side effects.In a previous study,it was demonstrated that TNFRSF9 was strongly expressed by reactive astrocytes in primary central nervous system(CNS)tumors,but was largely absent from tumor or inflammatory cells.The aim of the present study was to address the cellular source of TNFRSF9 expression in the setting of human melanoma brain metastasis,a highly immunogenic tumor with a prominent tropism to the CNS.Methods:Melanoma brain metastasis was analyzed in a cohort of 78 patients by immunohistochemistry for TNFRSF9 and its expression was correlated with clinicopathological parameters including sex,age,survival,tumor size,number of tumor spots,and BRAF V600E expression status.Results:Tumor necrosis factor receptor superfamily member 9 was frequently expressed independently on both melanoma and endothelial cells.In addition,TNFRSF9 was also present on smooth muscle cells of larger vessels and on a subset of lymphomonocytic tumor infiltrates.No association between TNFRSF9 expression and patient survival or other clinicopathological parameters was seen.Of note,several cases showed a gradual increase in TNFRSF9 expression on tumor cells with increasing distance from blood vessels,an observation that might be linked to hypoxia-driven TNFRSF9 expression in tumor cells.Conclusion:The findings indicate that the cellular source of TNFRSF9 in melanoma brain metastasis largely exceeds the lymphomonocytic pool,and therefore further careful(re-)assessment of potential TNFRSF9 functions in cell types other than hematopoietic cells is needed.Furthermore,the hypothesis of hypoxia-driven TNFRSF9 expression in brain metastasis melanoma cells requires further functional testing.

Role of Toll-like receptor 4 in inflammatory reactions of hippocampal neurons

Lipopolysaccharide stimulates Toll-like receptor 4 on immune cells to produce immune mediators. Toll-like receptor 4 is also expressed by non-immune cells, which can be stimulated by lipopolysaccharide. However, whether Toll-like receptor 4 is expressed by primary cultured hippocampal neurons and its specific role in lipopolysaccharide-induced neuroinflammation is currently undefined, in this study, Toll-like receptor 4 antibody blocking was used to analyze the Toll-like receptor 4 signaling pathway and changes in inflammation of lipopolysaccharide stimulated hippocampal neurons. Immunofluorescence showed that Toll-like receptor 4 protein was mainly located in the membrane of hippocampal neurons. Quantitative reverse transcription-PCR and western blot assay showed that after stimulation of lipopolysaccharide, the mRNA and protein levels of Toll-like receptor 4 and the mRNA levels of interleukin-ll3 and tumor necrosis factor-（] were significantly increased. In addition, there was increased phosphorylation and degradation of kappa B a inhibitor in the cytosol and increased nuclear factor-KB p65 expression in the nuclei. Pretreatment with Toll-like receptor 4 antibody could almost completely block this increase. These experimental findings indicate that lipopolysaccharide participates in neuroinflammation by stimulating Toll-like receptor 4/nuclear factor-KB pathway in hippocampal neurons, which may be both ＂passive victims＂ and ＂activators＂ of neuroinflammation.

动态动脉硬化指数联合血清肿瘤坏死因子受体相关因子6、前蛋白转化酶枯草溶菌素9对急性分水岭脑梗死病人的预后价值

目的探究动态动脉硬化指数(AASI)联合血清肿瘤坏死因子受体相关因子6(TRAF6)、前蛋白转化酶枯草溶菌素9(PCSK9)对急性分水岭脑梗死(CWI)病人的预后价值。方法选取2019年8月至2021年8月保定市第二中心医院收治的96例急性CWI病人为研究组,另取同期体检健康者80例为对照组。收集病人一般临床资料,并对研究组和对照组的血清TRAF6、PCSK9水平及AASI进行检测;根据研究组病人预后情况将其分为预后良好组(67例)和预后不良组(29例),多因素logistic回归分析急性CWI病人预后的影响因素;绘制AASI与血清TRAF6、PCSK9对急性CWI病人预后评估的受试者操作特征曲线(ROC曲线)。结果研究组血清TRAF6(1.48±0.34)µg/L、PCSK9(97.25±14.25)µg/L水平及AASI(0.56±0.15)高于对照组(0.87±0.19)µg/L、(82.78±9.17)µg/L、(0.36±0.11)(P<0.05)。预后良好组与预后不良组年龄、美国国立卫生研究院卒中量表(NIHSS)评分、空腹血糖、狭窄程度及血管斑块性质差异有统计学意义(P<0.05)。预后不良组血清TRAF6(1.77±0.37)µg/L、PCSK9(104.82±17.93)µg/L水平及AASI(0.62±0.12)高于预后良好组(1.35±0.21)µg/L、(93.97±12.65)µg/L、0.53±0.09(P<0.05)。多因素logistic回归分析结果显示NIHSS评分、狭窄程度、血管斑块性质、AASI、血清TRAF6、PCSK9水平是急性CWI病人预后的影响因素(P<0.05)。AASI联合血清TRAF6、PCSK9预测急性CWI病人预后的AUC是0.92,灵敏度为93.10%,特异度为76.12%,Youden指数为0.69,优于AASI、TRAF6、PCSK9各自单独预测(P<0.05)。结论急性CWI病人血清TRAF6、PCSK9水平显著升高,联合AA-SI对病人的预后状况具有较高的预测效能,可为临床的合理干预和改善病人预后提供依据。

肿瘤坏死因子受体相关因子3水平与急性胰腺炎病人病情严重程度及预后的相关性研究

目的分析肿瘤坏死因子受体相关因子3(TRAF3)水平与急性胰腺炎病人病情严重程度及预后的相关性。方法前瞻性选取2021年9月至2022年10月在河北省沧州中西医结合医院诊治的165例急性胰腺炎病人为观察组,及同期该院160例健康体检志愿者为对照组。根据临床病重程度将病人分为轻症急性胰腺炎组60例、中重症急性胰腺炎组40例、重症急性胰腺炎组65例。根据急性胰腺炎病人入院28 d的生存情况分为生存组125例和死亡组40例。采用酶联免疫吸附测定(ELISA)检测血清TRAF3、白细胞介素-6(IL-6)、肿瘤坏死因子α(TNF-α)水平;Spearman法分析急性胰腺炎病人血清TRAF3水平与急性生理学和慢性健康状况评价Ⅱ(APACHEⅡ)的相关性;对血清TRAF3水平与IL-6、TNF-α、肠道气体容积积分(GVS)的相关性进行Pearson法分析;对影响急性胰腺炎病人预后的因素进行logistic回归分析;受试者操作特征曲线(ROC曲线)分析血清TRAF3水平对急性胰腺炎病人预后的预测价值。结果与对照组(31.42±6.78)ng/L相比,轻症(56.18±9.34)ng/L、中重症(74.45±10.87)ng/L、重症急性胰腺炎组(86.42±11.05)ng/L病人血清TRAF3水平随着危重程度的增加依次显著升高(P<0.05),病情越严重,身体质量指数(BMI)、IL-6、TNF-α、肠道GVS、APACHEⅡ评分越高(P<0.05);急性胰腺炎病人血清TRAF3水平与IL-6、TNF-α、肠道GVS、APACHEⅡ评分均呈正相关(r=0.65、0.64、0.41、0.69,均P<0.05)。与生存组相比,死亡组BMI、IL-6、TNF-α、肠道 GVS、APACHEⅡ评分、TRAF3水平[(87.25±10.52)ng/L比(67.81±10.34)ng/L]明显升高(P<0.05)。BMI、IL-6、TNF-α、 肠道 GVS、APACHEⅡ评分、TRAF3是影响急性胰腺炎病人预后的危险因素(P<0.05)。血清 TRAF3预测急性胰腺炎病人预后 的曲线下面积(AUC)为 0.91,截断值为 75.30 ng/L。结论 急性胰腺炎病人血清 TRAF3水平升高,与病人病情严重程度及预后 密切相关。

基于miR-155/TLR4/MyD88信号通路探讨蛇伤胶囊对竹叶青蛇伤的抗炎作用

目的探讨蛇伤胶囊对竹叶青蛇伤miR-155/Toll样受体4(TLR4)/髓样分化因子88(MyD88)信号通路及炎症的影响。方法将18只雄性新西兰大白兔分为对照组、模型组和蛇伤胶囊组,每组6只。对照组正常饮食饮水,另两组注射7.5 mg/kg竹叶青蛇毒液6 h后,模型组灌胃348 mg/(kg·d)生理盐水,蛇伤胶囊组灌胃348 mg/(kg·d)蛇伤胶囊,均连续灌胃1周。观察实验兔的一般行为学,qRT-PCR检测外周血中miR-155a-5p、TLR4和MyD88表达,ELISA检测血清中白细胞介素-6(IL-6)、肿瘤坏死因子-α(TNF-α)、γ干扰素(IFN-γ)和白细胞介素-4(IL-4)含量。结果与对照组比较,模型组精神和食欲变差,排便稀软带血,伤口溃烂,miR-155-5p、TLR4 mRNA、MyD88 mRNA、IL-6和TNF-α表达均显著增加(均P<0.01),IFN-γ和IL-4表达显著下降(均P<0.01)。蛇伤胶囊组较模型组情况明显好转,miR-155a-5p、TLR4 mRNA、MyD88 mRNA、IL-6和TNF-α表达显著下降(均P<0.01),IFN-γ和IL-4表达显著增加(均P<0.01)。结论蛇伤胶囊抑制竹叶青蛇伤造成的炎症反应,维持Th1/Th2细胞平衡,其作用机制可能与抑制miR-155/TLR4/MyD88轴的表达有关。

基于Traf6/TAK1通路探讨维生素D对甲状腺功能减退肾损伤幼鼠肾小管上皮细胞间充质转化的影响

目的探讨维生素D(VD)对甲状腺功能减退(HT)肾损伤幼鼠肾小管上皮细胞间充质转化(EMT)的影响,以及其对肿瘤坏死因子受体相关因子6(Traf6)/转化生长因子-β活化激酶1(TAK1)通路的调控机制。方法通过丙基硫尿嘧啶(PTU)灌胃构建幼鼠HT模型,以过表达TAK1(pc DNA3.1-TAK1)作功能挽救实验;50只SPF级雄性SD大鼠分为正常组、HT组、VD低剂量(HT+VD-L)组、VD高剂量(HT+VD-H)组、HT+VD-H+pc DNA3.1-TAK1(HT+VD-H+pc)组,每组10只。全自动生化仪检测各组大鼠血清血肌酐(Scr)和血尿素氮(BUN)的含量;脱氧核糖核苷酸末端转移酶介导的缺口末端标记法试剂盒(TUNEL)检测肾组织中的细胞凋亡;免疫组化检测肾组织中转化生长因子β1(TGF-β1)、α-平滑肌肌动蛋白(α-SMA)和上皮钙黏蛋白(E-cadherin)的表达;Western blot法检测肾组织中B淋巴细胞瘤-2(Bcl-2)、Bcl-2相关X蛋白(Bax)、Traf6、TAK1和磷酸化TAK1(p-TAK1)的表达。结果VD能明显降低HT幼鼠血清中Scr和BUN的含量,下调肾组织中的细胞凋亡率,降低肾组织中TGF-β1和α-SMA的表达,上调E-cadherin的表达;抑制肾组织中Traf6、p-TAK1和Bax的表达,升高肾组织中Bcl-2的表达,差异均具有统计学意义(均P<0.05)。结论维生素D能抑制HT幼鼠肾小管上皮细胞的EMT,降低肾组织中的细胞凋亡率,减轻肾组织的病理损伤,改善其肾功能,这与抑制Traf6/TAK1信号的激活有关。

血清TRAF6、activin-A、SFMC水平与子痫前期患者病情及妊娠结局的相关性

目的分析血清肿瘤坏死因子受体相关因子6(TRAF6)、糖蛋白激素-激活素A(activin-A)、可溶性纤维蛋白复合物(SFMC)水平与子痫前期患者病情及妊娠结局的相关性。方法回顾性选取2020年7月至2023年1月郑州大学第二附属医院收治的134例子痫前期患者为研究组,另选取同期健康孕检女性为对照组,根据子痫前期患者病情程度分为轻度、重度患者,所有患者均随访至分娩结束后30 d,根据本次妊娠结局是否发生不良妊娠情况将研究组分为发生、未发生患者。对比对照组和研究组、不同病情程度及不同妊娠结局患者入院时血清TRAF6、activin-A、SFMC水平,并分析其相关性,分析入院时血清各指标水平检测对子痫前期患者妊娠结局的预测价值。结果研究组入院时血清TRAF6、activin-A、SFMC水平高于对照组(P<0.05);重度患者血清TRAF6、activin-A、SFMC水平高于轻度患者(P<0.05);入院时血清TRAF6、activin-A、SFMC均与患者病情程度呈正相关(P<0.05);妊娠不良患者入院时血清TRAF6、activin-A、SFMC水平高于妊娠良好患者(P<0.05);入院时血清TRAF6、activin-A、SFMC水平联合预测子痫前期患者妊娠不良的曲线下面积(AUC)为0.748。结论血清TRAF6、activin-A、SFMC表达与子痫前期患者病情程度及预后密切相关,其三者联合检测对预测子痫前期患者妊娠不良具有较高的应用价值,可辅助临床诊疗。

脊柱结核术后TLR-4、TNF-α、IL-6、IL-17的变化及与预后的相关性研究

目的分析脊柱结核术后Toll样受体(TLR)-4、肿瘤坏死因子(TNF)-α、白细胞介素(IL)-6、IL-17的变化及与预后的相关性。方法选择2021年1月—2022年12月收治的60例接受手术治疗的脊柱结核患者作为观察组,另选60例非脊柱结核且行脊柱手术的患者作为对照组(部分病例由基金项目中合作医院提供)。检测两组患者血清及病灶组织TLR-4、TNF-α、IL-6、IL-17表达水平。根据观察组患者术后6个月的预后情况,分为预后良好组和预后不良组,比较两组术前及术后6个月的血清TLR-4、TNF-α、IL-6、IL-17表达水平,使用Pearson相关性分析评价脊柱结核患者术前血清TLR-4、TNF-α、IL-6、IL-17表达水平与术后6个月改良巴氏指数(MBI)量表评分的关系,受试者工作特征(ROC)曲线分析术后血清TLR-4、TNF-α、IL-6联合IL-17对脊柱结核术后预后不良的预测效能。结果观察组术前血清及病灶组织的TLR-4、TNF-α、IL-6、IL-17表达水平均高于对照组,差异均有统计学意义(P<0.05);预后不良组术前血清TLR-4、TNF-α、IL-6、IL-17表达水平均高于预后良好组,差异均有统计学意义(P<0.05);术后6个月,预后良好组血清TLR-4、TNF-α、IL-6、IL-17表达水平较术前明显降低,与预后不良组比较,差异均有统计学意义(P<0.05);经Pearson相关性分析,脊柱结核患者术前血清TLR-4、TNF-α、IL-6、IL-17表达水平与术后6个月MBI量表评分呈负相关(P<0.05);经ROC曲线分析,术前血清TLR-4、TNF-α、IL-6联合IL-17预测脊柱结核术后预后不良的ROC曲线下面积为0.921。结论脊柱结核术后血清TLR-4、TNF-α、IL-6、IL-17较术前明显降低,与预后密切相关,术前血清TLR-4、TNF-α、IL-6联合IL-17预测预后不良的效能较好,值得临床予以重视。

新生儿GBS感染所致化脓性脑膜炎中血清维生素D和炎性细胞因子的表达及意义

目的检测新生儿B族链球菌(group B streptococcus,GBS)感染所致化脓性脑膜炎(purulent meningitis,PM)血清中维生素D、白细胞介素(interleukin,IL)-6、IL-10、肿瘤坏死因子-α(tumor necrosis factor-α,TNF-α)和C反应蛋白(c-reactive protein,CRP)的表达水平,并探讨其临床价值。方法选取2017年5月至2020年5月在秦皇岛市第一医院出生的59例GBS感染的PM新生儿纳入观察组,同期59例非GBS感染的PM新生儿(晚发败血症)纳入对照组。检测所有受试者血清维生素D、CRP、IL-6、IL-10和TNF-α水平,并进行Pearson相关性分析;利用受试者操作特征(receiver operating characteristic,ROC)曲线分析血清维生素D和炎性细胞因子对新生儿GBS感染所致PM的诊断价值。统计学方法采用t检验、χ^(2)检验和Pearson相关性分析。结果观察组与对照组孕产妇胎膜早破[47.5%(28/59)与5.1%(3/59),χ^(2)=27.345]、产时窒息[52.5%(31/59)与18.6%(11/59),χ^(2)=14.787]和产褥感染[(44.1%(26/59)与(22.0%(13/59)),χ^(2)=6.473]的发生率比较,观察组明显高于对照组(P<0.05)。观察组血清维生素D水平显著低于对照组[(13.3±2.1)μg/L与(21.1±5.0)μg/L,t=11.345],IL-6[(87.1±14.5)μg/L与(63.9±11.9)μg/L,t=9.507]、IL-10[(49.6±15.2)μg/L与(29.3±10.0)μg/L,t=8.596]、TNF-α[(76.8±19.0)μg/L与(50.0±10.8)μg/L,t=9.410]和CRP[(21.5±5.0)μg/L与(13.7±3.7)μg/L,t=9.702]水平显著高于对照组(P值均<0.05)。Pearson相关性分析结果显示,观察组血清维生素D水平分别与IL-6、IL-10、TNF-α和CRP水平呈负相关(r=-0.662、-0.644、-0.564、-0.643,P<0.05);血清维生素D、IL-6、IL-10、TNF-α和CRP单独诊断GBS感染新生儿PM的曲线下面积(area under the curve,AUC)分别为0.831(95%CI:0.757~0.904)、0.887(95%CI:0.830~0.944)、0.859(95%CI:0.793~0.925)、0.888(95%CI:0.821~0.955)、0.879(95%CI:0.820~0.938),5项联合检测的AUC为0.991(95%CI:0.978~1.000)。结论GBS感染所致的PM新生儿血清中维生素D水平降低,炎性细胞因子水平增加,对于GBS感染所致的PM具有一定的辅助诊断价值。

血清MyD88和TRAF-6联合检测在儿童重度急性呼吸道感染诊断和预后评估中的价值

目的探讨血清髓系分化初级反应蛋白88(MyD88)、肿瘤坏死因子受体相关因子6(TRAF-6)在儿童重度急性呼吸道感染辅助诊断和预后评估中的价值。方法选取2020年1月—2022年6月南阳市中心医院儿童急性呼吸道感染患儿80例(急性呼吸道感染组)。根据病原学检测结果分为非细菌感染组(42例)和细菌感染组(38例)。根据患儿病情严重程度分为轻度组(28例)、中度组(20例)、重度组(32例)。根据患儿预后情况分为预后良好组(58例)和预后不良组(22例)。以同期80名体检健康儿童为正常对照组。采用多因素Logistic回归分析评估急性呼吸道感染患儿预后的影响因素。采用受试者工作特征(ROC)曲线评价各项指标诊断儿童重度急性呼吸道感染和评估预后的效能。结果急性呼吸道感染组血清MyD88、TRAF-6水平显著高于正常对照组(P<0.001)。细菌感染组血清MyD88、TRAF-6水平显著高于非细菌感染组(P<0.001)。轻度组、中度组、重度组血清MyD88、TRAF-6水平依次升高(P<0.001)。ROC曲线分析结果显示,血清MyD88、TRAF-6单项检测和联合检测诊断重度急性呼吸道感染的曲线下面积(AUC)分别为0.762、0.734、0.876。预后不良组细菌感染、下呼吸道感染、重度病情所占比例和白细胞(WBC)计数、反应蛋白(CRP)、MyD88、TRAF-6水平均显著高于预后良好组(P<0.05)。多因素Logistic回归分析结果显示,重度病情、CRP升高、MyD88升高、TRAF-6升高均是儿童急性呼吸道感染预后不良的危险因素[比值比(OR)值分别为1.693、1.864、3.218、2.869,95%可信区间(CI)分别为1.142~2.510、1.228~2.830、1.561~6.633、1.511~5.446,P<0.05]。ROC曲线分析结果显示,血清MyD88、TRAF-6、CRP单项检测和联合检测判断急性呼吸道感染患儿预后的AUC分别为0.848、0.900、0.817、0.951。结论急性呼吸道感染患儿血清MyD88、TRAF-6水平显著升高,联合检测对儿童重度急性呼吸道感染的辅助诊断和预后评估均有较高的临床价值。

Study on effect of imbalance of TRAF-6, IRAK-1 and NALP3 inflammatory factors in patients with gouty arthritis

Objective:To explore the effect of imbalance of tumor necrosis factor receptor related factor-6(TRAF-6),interleukin 1 receptor associated kinase-1(IRAK-1)and neutrophil alkaline phosphatase-3(NALP3)in patients with gouty arthritis.Methods:The retrospective experiment was conducted on 105 patients with gouty arthritis admitted to our hospital(47 patients with acute onset and 58 patients with remission,namely group A and group B);meanwhile,another 61 healthy volunteers were selected for control,namely group C.The enrolling of the three groups was dated from May 2017 to May 2018,and TRAF-6,IRAK-1 and NALP3 of all subjects were tested through real-time fluorescence quantification(RT-PCR),and the correlation between the three inflammatory factors and gouty arthritis was compared.Results:1)Through treatment,ESR,BUA and total addiment in group A and B were higher than those in group C,among which the three indicators in group A were higher than those in group B(P<0.05),while CRP was lower than that of group C,and the two indicators in group A were lower than those in group B(P<0.05).2)There was no significant difference in the relative expression of TRAF-6 mRNA between group A and group B before treatment(P>0.05),significantly lower than group C(P<0.05);the above indicators of group A and group B were improved to some extent after treatment,but group A was still lower than group B(P<0.05),and the degree of improvement of group A was also lower than that of group C(P<0.05),while the degree of improvement of group B was not significantly different from that of group C(P>0.05).3)The relative expression level of IRAK-1mRNA in group A and group B before treatment showed no significant difference(P>0.05),but was also lower than that in group C(P<0.05).The relative expression level of IRAK-1mRNA in group A and group B increased to some extent after treatment,with group A significantly lower than group C(P<0.05),and group B showed no significant difference compared with group C(P>0.05).4)The relative expression level of NALP-3 mRNA in group A and group B showed no significant difference(P>0.05)before treatment,significantly higher than that in group C(P<0.05);the relative expression of NALP-3 mRNA in group A was not significantly decreased(P>0.05)after treatment,while that in group B was significantly decreased after treatment(P<0.05),indicating significant different compared with group A and group C.5)There was no correlation between)TRAF-6,ESR,CRP and total addiment(P>0.05);IRAK-1 was negatively correlated with CRP,BUA and total addiment(P<0.05);NALP-3 was negatively correlated with ESR and CRP(P<0.05).Conclusion:TRAF-6,IRAK-1 and NALP-3 are all under abnormal expression in the developing of new gouty arthritis,acting as important participants in promoting the occurrence,development and outcome of illness states,so the intervening measures should be taken.

MiR-146b在急性Stanford A型主动脉夹层患者外周血清和主动脉组织中的表达及其临床意义

目的:研究miR-146b在急性Stanford A型主动脉夹层(Stanford type A aortic dissection,TAAD)患者外周血清及主动脉壁组织中的表达,探讨miR-146b在TAAD发病中的意义及机制。方法:将研究对象分为对照组(n=23)和TAAD组(n=27),收集所有研究对象的外周血清、术中主动脉壁组织和临床资料。运用实时荧光定量PCR(quantitative realtime PCR,qRT-PCR)检测各组外周血清及主动脉壁组织中miR-146b的表达水平。比较不同主动脉夹层风险级别的miR-146b水平,对miR-146b水平与TAAD患者主动脉夹层破裂风险进行相关性分析。运用DIANA LAB-TarBase 6.0数据库及TargetScan靶基因预测软件预测miR-146b相关靶基因。结果:TAAD组外周血清和主动脉壁组织中miR-146b表达水平均较对照组增高(P<0.001);中度风险和重度高危的TAAD患者外周血清和主动脉壁组织中miR-146b的表达水平较轻度风险患者明显增高(P<0.05);TAAD外周血清和主动脉壁组织中miR-146b差异表达与主动脉夹层高危风险呈正相关(r=0.862,0.872;P<0.05)。核因子κB1(nuclear factor kappa B1,NF-κB1)、肿瘤坏死因子受体相关因子6(tumor necrosis factor receptor-associated factor 6,TRAF6)、基质金属蛋白酶-16(matrix metalloproteinase 16,MMP16)和肌动蛋白2(actin alpha 2,ACTA2)为miR-146b的靶基因。

肺癌组织中ERO1L、TNFRSF4的表达与患者免疫功能、炎症反应因子及预后的关系

目的探究肺癌组织中内质网氧化物蛋白(ERO1L)、肿瘤坏死因子受体4(TNFRSF4)的表达与肺癌患者免疫功能、炎症反应因子及其预后的关系。方法选取2018年7月~2020年7月于本院进行手术治疗的108例肺癌患者,收集术中留取的癌组织和癌旁组织标本。采用qRT-PCR检测ERO1L和TNFRSF4的mRNA相对表达量;使用免疫组织化学法检测ERO1L和TNFRSF4蛋白表达情况,分析二者表达水平与患者临床病理特征的关系,采用Kaplan-Meier法分析ERO1L、TNFRSF4蛋白表达水平与患者预后的关系。肺癌患者预后生存率的影响因素采用Cox多因素分析。结果肺癌患者癌组织中ERO1L mRNA表达水平显著高于癌旁组织,TNFRSF4 mRNA表达水平显著低于癌旁组织(P<0.05);肺癌组织中ERO1L蛋白高表达率显著高于癌旁组织,TNFRSF4蛋白高表达率显著低于癌旁组织(P<0.05)。ERO1L蛋白高表达组患者CD3^(+)、CD4^(+)显著低于低表达组(P<0.05),IL-1β、IL-6、TNF-α显著高于低表达组(P<0.05);TNFRSF4蛋白高表达组患者CD3^(+)、CD4^(+)显著高于低表达组,IL-1β、IL-6、TNF-α显著低于低表达组(P<0.05)。ERO1L高表达组患者3年累积生存率显著低于低表达组(Log rankχ^(2)=6.100,P=0.014),TNFRSF4高表达组患者3年累积生存率显著高于低表达组(Log rankχ^(2)=11.296,P=0.001)。肺癌组织的低分化、淋巴结转移、TNM分期为Ⅲ-Ⅳ期、ERO1L高表达、TNFRSF4低表达是影响患者生存率的危险因素。结论肺癌组织中ERO1L、TNFRSF4表达与患者免疫功能、炎症因子以及预后具有一定关系。

血清PKN1、TNFRSF4、DDIT4预测子宫内膜癌患者淋巴结转移及预后的临床价值

目的探讨血清蛋白激酶N1(PKN1)、肿瘤坏死因子受体超家族成员4(TNFRSF4)、DNA损伤诱导转录因子4(DDIT4)预测子宫内膜癌患者淋巴结转移和预后的临床价值。方法选取2019年10月至2021年10月于唐山市妇幼保健院治疗的180例子宫内膜癌患者为子宫内膜癌组。另选取同期在该院治疗的子宫良性疾病患者180例作为良性疾病组,以及在该院体检的180例健康者作为健康组。子宫内膜癌组根据是否发生淋巴结转移分为淋巴结转移组42例和无淋巴结转移组138例,按照随访结果将患者分为预后不良组和预后良好组。比较各组血清PKN1、TNFRSF4、DDIT4水平,Logistic模型分析患者预后的影响因素,以及绘制受试者工作特征曲线分析血清PKN1、TNFRSF4、DDIT4对患者预后的预测价值。结果与健康组比较,子宫内膜癌组、良性疾病组血清PKN1、DDIT4水平升高,血清TNFRSF4水平降低,差异有统计学意义(P<0.05)。淋巴结转移组血清PKN1、DDIT4水平高于无淋巴结转移组,TNFRSF4水平低于无淋巴结转移组,差异有统计学意义(P<0.05)。预后不良组低分化程度、淋巴脉管间隙浸润阳性、肌层浸润≥1/2的占比高于预后良好组,差异有统计学意义(P<0.05)。预后不良组血清PKN1、DDIT4水平高于预后良好组,TNFRSF4水平低于预后良好组,差异有统计学意义(P<0.05)。血清PKN1、DDIT4、LVSI、肌层浸润是子宫内膜癌预后的危险因素,血清TNFRSF4为子宫内膜癌预后的保护因素(P<0.05)。血清PKN1、TNFRSF4、DDIT4联合对子宫内膜癌患者预后状况的预测效能高于各血清指标单独预测(P<0.05)。结论血清PKN1、TNFRSF4、DDIT4与子宫内膜癌患者淋巴结转移及预后有关,且对患者预后的预测效能较高。

基于OPG/RANK/RANKL信号通路研究补肾强督方对大鼠去卵巢骨质疏松的作用机制

目的:观察补肾强督方干预去卵巢所致骨质疏松(OP)大鼠对OPG/RANK/RANKL信号通路的影响,以探索补肾强督方防治绝经后骨质疏松(PMOP)的机制。方法:选取40只SPF级雌性SD大鼠适应性喂养1周后称重并按照体重大小从低到高依次编号,然后利用随机数字表法分为假手术组(6只)和手术组(34只),手术组中有4只因为手术原因死亡,剩余30只,手术组切除双侧卵巢构建OP大鼠模型后分为模型对照组、阿仑膦酸钠组、补肾强督方高剂量组、补肾强督方中剂量组、补肾强督方低剂量组各6只。假手术组仅切除等重量卵巢旁脂肪组织。药物干预10周后取大鼠左右股骨及腹主动脉采血制备血清,采用酶联免疫吸附法(ELISA)检测血清中核因子κB受体活化因子(RANK)、核因子κB受体活化因子配体(RANKL)、骨保护素(OPG)、肿瘤坏死因子受体相关因子6(TRAF6)、骨钙素(OCN)水平情况,分别采用蛋白质免疫印迹法(Western blot)和实时荧光定量聚合酶链式反应法(RT-PCR)检测骨组织OPG、RANK、RANKL蛋白及mRNA的表达,并进行统计学处理。结果:补肾强督方可以促进血清中OPG含量以及股骨中OPG蛋白及mRNA的表达,抑制血清中RANK、RANKL、TRAF6、OCN含量和股骨中RANK、RANKL蛋白及mRNA的表达。结论:补肾强督方可能通过调控OPG/RANKL/RANK信号通路以及下游TRAF6因子的表达抑制破骨细胞增殖、刺激成骨细胞的表达,动态调节骨代谢的平衡。

感染性休克患者IRAK1和TRAF6的表达变化及临床意义研究

目的探讨感染性休克患者白细胞介素-1受体相关激酶1(IRAK1)、肿瘤坏死因子相关受体6(TRAF6)的表达变化及临床意义。方法以2020年11月至2022年11月该院收治的142例感染性休克患者(感染性休克组)为研究对象,并以同期来该院进行体检的体检者为对照组。根据感染性休克组患者住院观察治疗28 d后的生存状况分为生存组100例和死亡组42例,监测感染性休克患者入院时及治疗2、4、6 d后的IRAK1、TRAF6表达变化,并记录患者急性生理学与慢性健康状况评分系统Ⅱ(APACHEⅡ)评分和序贯器官功能衰竭评估(SOFA)评分动态变化;Spearman相关性分析评价感染性休克患者IRAK1、TRAF6与APACHEⅡ评分、SOFA评分的相关性;Pearson相关性分析IRAK1与TRAF6的相关性;Logistic回归分析感染性休克患者生存状况的影响因素。通过受试者工作特征曲线分析IRAK1、TRAF6对感染性休克患者生存状况的诊断价值。结果入院时感染性休克组IRAK1、TRAF6相对表达水平显著低于对照组,APACHEⅡ评分、SOFA评分显著高于对照组,差异有统计学意义(P<0.05)。与入院时比较,治疗2、4、6 d后两组IRAK1、TRAF6相对表达水平均显著升高,APACHEⅡ评分、SOFA评分均显著降低,差异有统计学意义(P<0.05);与死亡组比较,生存组在各个相应时间点IRAK1、TRAF6相对表达水平均较高,APACHEⅡ评分、SOFA评分均较低,差异有统计学意义(P<0.05)。相关性分析显示,感染性休克患者IRAK1、TRAF6与APACHEⅡ评分、SOFA评分均呈负相关,IRAK1与TRAF6呈正相关(r=0.688,P<0.05)。IRAK1、TRAF6及APACHEⅡ评分是影响感染性休克患者生存状况的独立危险因素(P<0.05)。IRAK1、TRAF6联合诊断的曲线下面积(AUC)显著大于IRAK1单独诊断的AUC(Z=2.044,P=0.041),以及TRAF6单独诊断的AUC(Z=2.442,P=0.015)。结论感染性休克患者IRAK1、TRAF6的表达可评估患者生存及预后状况。