心房颤动患者血清脂蛋白a、Apelin-13、转化生长因子β1水平与左心房内径的关系

目的 探讨心房颤动(AF)患者血清脂蛋白a[Lp(a)]、Apelin-13、转化生长因子β1(TGF-β1)及左心房内径(LAD)间的关系。方法 2022年12月至2024年1月,选择在滁州市第一人民医院心内科住院患者100例,按照是否发生AF分为2组,AF组50例,非AF(NAF)组50例。检测2组患者血清Lp(a)、Apelin-13、TGF-β1水平,采用经胸超声心动图检查左心房内径并进行相关性分析。结果 AF组Lp(a)、TGF-β1水平及LAD升高,Apelin-13水平降低,与NAF组比较差异均有统计学意义(P<0.05)。多因素logistic回归分析显示,Lp(a)、TGF-β1、舒张压及LAD为AF的危险因素,Apelin-13为AF的保护因素(P<0.05),且Lp(a)、TGF-β1、LAD及Apelin-13对AF具有预测价值(P<0.05)。线性回归结果显示,Lp(a)、TGF-β1、Apelin-13对LAD的回归系数分别为0.01(P>0.05)、-0.04(P>0.05)、-1.22(P<0.05)。结论 Lp(a)、TGF-β1及LAD为AF的独立危险因素;但Lp(a)、TGF-β1与LAD无明确相关性;Apelin-13作为AF独立保护因素,与LAD呈负相关。

Downregulation of SL-ZH13 transcription factor gene expression decreases drought tolerance of tomato

Zinc finger-homeodomain proteins(ZF-HDs) are transcription factors that regulate plant growth,development,and abiotic stress tolerance.The SL-ZH13 gene was found to be significantly upregulated under drought stress treatment in tomato(Solanum lycopersicum) leaves in our previous study.In this study,to further understand the role that the SL-ZH13 gene plays in the response of tomato plants to drought stress,the virus-induced gene silencing(VIGS) method was applied to downregulate SL-ZH13 expression in tomato plants,and these plants were treated with drought stress to analyze the changes in drought tolerance.The SL-ZH13 silencing efficiency was confirmed by quantitative real-time PCR(qRT-PCR) analysis.In SL-ZH13-silenced plants,the stems wilted faster,leaf shrinkage was more severe than in control plants under the same drought stress treatment conditions,and the mean stem bending angle of SL-ZH13-silenced plants was smaller than that of control plants.Physiological analyses showed that the activity of superoxide dismutase(SOD) and peroxidase(POD) and the content of proline(Pro) in SL-ZH13-silenced plants were lower than those in control plants after 1.5 and 3 h of drought stress treatment.The malondialdehyde(MDA) content in SL-ZH13-silenced plants was higher than that in control plants after 1.5 and 3 h of drought stress treatment,and H2O2 and O2^-· accumulated much more in the leaves of SL-ZH13-silenced plants than in the leaves of control plants.These results suggested that silencing the SL-ZH13 gene affected the response of tomato plants to drought stress and decreased the drought tolerance of tomato plants.

血清CTRP13与妊娠糖尿病及妊娠结局的相关研究

目的 探讨补体C1q/肿瘤坏死因子相关蛋白13(C1q tumor necrosis factor related protein 13,CTRP13)与妊娠糖尿病(gestational diabetes mellitus,GDM)的关系及CTRP13对GDM孕妇不良妊娠结局的预测价值。方法 选取2023年1月至5月于郑州大学第二附属医院行产前检查的孕妇163例,根据孕24~28周口服葡萄糖耐量试验结果,将其分别纳入GDM组(n=83)和正常糖耐量(normal glucose tolerance,NGT)组(n=80)。收集两组孕妇的一般资料、生化资料、不良妊娠结局,分析GDM孕妇血清CTRP13与糖脂代谢指标的相关性。绘制受试者操作特征曲线(receiveroperating characteristic curve,ROC曲线)分析CTRP13对GDM孕妇不良妊娠结局的预测价值。结果 GDM组孕妇的孕前体质量指数、产前体质量指数、三酰甘油、总胆固醇、低密度脂蛋白、空腹血糖、负荷后2h血糖、糖化血红蛋白、空腹胰岛素及稳态模型评估的胰岛素抵抗指数均显著高于NGT组,CTRP13显著低于NGT组(P<0.05)。血清CTRP13与GDM孕妇的总胆固醇、三酰甘油、低密度脂蛋白、负荷后2h血糖、糖化血红蛋白均呈负相关(P<0.05)。GDM组孕妇的妊娠高血压和胎膜早破的发生率均显著高于NGT组(P<0.05)。血清CTRP13预测GDM孕妇不良妊娠结局的曲线下面积为0.805,敏感度和特异性分别为75.80%、76.00%。结论 血清CTRP13与GDM孕妇的糖脂代谢有关,血清CTRP13是预测GDM孕妇不良妊娠结局的潜在生物标志物。

Von Willebrand Factor Antigen and ADAMTS13 Activity Assay in Pregnant Women and Severe Preeclamptic Patients

The present study examined von Willebrand factor (vWF) levels and ADAMTS13 activity in pregnant and severe preeclamptic women in order to shed light on the prothrombotic state in severe preeclampsia.Thirty healthy women of childbearing age,22 second trimester pregnant women,30 third trimester pregnant women and 10 severe preeclamptic patients were recruited in this study.ADAMTS13 activity was determined by the FRETS-vWF73 assay and vWF antigen (vWF:Ag) levels by an enzyme-linked immunosorbent assay.The results showed that there were statistically significant differences in plasma vWF antigen levels between the severe preeclamptic and third trimester pregnant women,between third and second trimester pregnant women (P【0.05).The third trimester pregnant women had significantly lower plasma ADAMTS13 activity than second trimester pregnant women (P【0.05).Nevertheless,no significant differences in plasma ADAMTS13 activity were found between severe preeclamptic patients and the third trimester pregnant women (P】0.05).In conclusion,plasma ADAMTS13 activity is normal in severe preeclampsia despite the increased vWF:Ag levels.Prothrombotic state is involved in the pathogenesis of severe preeclampsia,as a result of endothelial injury.

Levels and activities of von Willebrand factor and metalloproteinase with thrombospondin type-1 motif, number 13 in inflammatory bowel diseases

To evaluate the levels of von Willebrand factor (VWF) and metalloproteinase with thrombospondin type-1 motif, number 13 (ADAMTS13) in inflammatory bowel disease (IBD) and correlate them with the disease activity. METHODSConsecutive patients with IBD aged 18 years or older were enrolled in the study. Forty-seven patients with ulcerative colitis (UC), 38 with Crohn’s disease (CD), and 50 healthy controls were included. The white blood cell count, haematocrit, platelet count, fibrinogen, partial activated thromboplastin time, C-reactive protein, albumin, VWF antigen level (VWF:Ag), VWF ristocetin cofactor activity (VWF:RCo), VWF collagen-binding activity (VWF:CB), and ADAMTS13 antigen level (ADAMTS13:Ag) and activity (ADAMTS13act) were measured. The following ratios were assessed: VWF:RCo/VWF:Ag, VWF:CB/VWF:Ag, VWF:Ag/ADAMTS13act, and ADAMTS13act/ADAMTS13:Ag. RESULTSCompared to controls, the odds ratio (OR) of an elevated VWF: Ag > 150% was 8.7 (95%CI: 2.7-28.1) in the UC group and 16.2 (95%CI: 4.8-54.0) in the CD group. VWF:CB was lower in UC patients, and active CD was associated with a higher VWF: RCo (+38%). The ORs of VWF:CB/VWF:Ag < 0.7 (a marker of acquired von Willebrand syndrome) in the UC and CD groups were 11.9 (95%CI: 4.4-32.4) and 13.3 (95%CI: 4.6-38.1), respectively. Active UC was associated with lower ADAMTS13:Ag (-23%) and ADAMTS13act (-20%) compared to UC in remission. Patients with active CD had a 15% lower ADAMTS13act than controls. The activity of UC, but not that of CD, was inversely correlated with ADAMTS13:Ag (r = -0.76) and ADAMTS13act (r = -0.81). CONCLUSIONComplex VWF-ADAMTS13-mediated mechanisms disturb haemostasis in IBD. A reduced WVF:CB is a risk factor for bleeding, while a lower ADAMTS13 level combined with an elevated VWF:Ag could predispose one to thrombosis.

ADAMTS13 and von Willebrand factor are useful biomarkers for sorafenib treatment efficiency in patients with hepatocellular carcinoma

BACKGROUND Many advanced hepatocellular carcinoma(HCC) patients are receiving sorafenib treatment. Sorafenib reportedly improves overall survival(OS) significantly in patients with HCC. Prediction of sorafenib response and prognosis in patients with HCC receiving sorafenib treatment are important due to the potentially serious side effects of sorafenib. A disintegrin-like and metalloproteinase with thrombospondin type-1 motifs 13(ADAMTS13) and von Willebrand factor(VWF) are associated with the pathophysiology of liver cirrhosis and HCC through their roles in hypercoagulability; they are also associated with angiogenesis via vascular endothelial growth factor(VEGF). The imbalance between ADAMTS13 and VWF was associated with prognosis of various cancers in patients undergoing chemotherapy.AIM To investigate ADAMTS13 and VWF as potential biomarkers for sorafenib response and prognosis in patients with HCC receiving sorafenib treatment.METHODS Forty-one patients with HCC receiving sorafenib treatment were included in this study. The initial daily sorafenib dose was 400 mg in all patients. ADAMTS13 activity(ADAMTS13:AC), VWF antigen(VWF:Ag), VEGF levels were determined by enzyme-linked immunosorbent assay. Univariate andmultivariate analyses were used to determine predictive factors for sorafenib response and prognosis in patients with HCC receiving sorafenib treatment.RESULTS ADAMTS13:AC was significantly higher in patients with stable disease(SD),partial response(PR), and complete response(CR) than in those with progressive disease(PD)(P < 0.05). In contrast, VWF:Ag and the VWF:Ag/ADAMTS13:AC ratio were significantly lower in patients with SD, PR, and CR than in those with PD(P < 0.05 for both). Multivariate analysis showed that the VWF:Ag/ADAMTS13:AC ratio was the only predictive factor for sorafenib response and ADAMTS13:AC was the only prognostic factor in patients with HCC receiving sorafenib treatment. The patients with a low ADAMTS13:AC(<78.0) had significantly higher VEGF levels than those with a high ADAMTS13:AC(≥ 78.0)(P < 0.05).CONCLUSION The VWF:Ag/ADAMTS13:AC ratio and ADAMTS13:AC are potentially useful biomarkers for sorafenib response and prognosis, respectively, in patients with HCC receiving sorafenib treatment.

Overexpression of fibroblast growth factor 13 ameliorates amyloid-β-induced neuronal damage

Previous studies have shown that fibroblast growth factor 13 is downregulated in the brain of both Alzheimer’s disease mouse models and patients,and that it plays a vital role in the learning and memory.However,the underlying mechanisms of fibroblast growth factor 13 in Alzheimer’s disease remain unclear.In this study,we established rat models of Alzheimer’s disease by stereotaxic injection of amyloid-β(Aβ_(1-42))-induced into bilateral hippocampus.We also injected lentivirus containing fibroblast growth factor 13 into bilateral hippocampus to overexpress fibroblast growth factor 13.The expression of fibroblast growth factor 13 was downregulated in the brain of the Alzheimer’s disease model rats.After overexpression of fibroblast growth factor 13,learning and memory abilities of the Alzheimer’s disease model rats were remarkably improved.Fibroblast growth factor 13 overexpression increased brain expression levels of oxidative stress-related markers glutathione,superoxide dismutase,phosphatidylinositol-3-kinase,AKT and glycogen synthase kinase 3β,and anti-apoptotic factor BCL.Furthermore,fibroblast growth factor 13 overexpression decreased the number of apoptotic cells,expression of pro-apoptotic factor BAX,cleaved-caspase 3 and amyloid-βexpression,and levels of tau phosphorylation,malondialdehyde,reactive oxygen species and acetylcholinesterase in the brain of Alzheimer’s disease model rats.The changes were reversed by the phosphatidylinositol-3-kinase inhibitor LY294002.These findings suggest that overexpression of fibroblast growth factor 13 improved neuronal damage in a rat model of Alzheimer’s disease through activation of the phosphatidylinositol-3-kinase/AKT/glycogen synthase kinase 3βsignaling pathway.

Determination of Serum Interleukin-13 and Nerve Growth Factor in Patients with Systemic Lupus Erythematosus and Clinical Significance

The changes in the levels of serum interleukin-13 (IL-13) and nerve growth factor (NGF) in patients with systemic lupus erythematosus (SLE) and their clinical significance were investigated. Sandwich ELISA was used to determine the levels of serum IL-13 and NGF in 35 SLE patients and 15 normal controls. The results showed that the levels of serum IL-13 (92.69±9.87 pg/ml) and NGF (339.69±25.60 pg/ml) in active SLE patients were significantly higher than those in inactive SLE patients (IL-13, 54.22±9.31 pg/ml; NGF, 300.89±33.51 pg/ml)(P<0.01). The inactive patients also had significantly increased serum levels of IL-13 and NGF as compared with normal controls (IL-13, 35.20±12.70 pg/ml; NGF, 111.40±32.54 pg/ml; P<0.05 and P<0.01, respectively). Spearman correlation analysis revealed that the serum IL-13 levels were correlated with disease activity index of SLE (SLEDAI), ESR and serum levels of C_3 (r= 0.813, 0.504, -0.605, respectively). The serum NGF levels were also correlated with above markers (r=0.442, 0.338, -0.463, respectively). The serum levels of IL-13 and NGF had a positive correlation (r=0.506, P<0.01). It was suggested that IL-13 and NGF might be involved in the pathogenesis of SLE and closely correlated with disease activity.

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.

创面渗出液VEGF、MMP-13、TIMP-1水平对负压封闭引流术联合人工真皮修复难愈性创面效果的预测价值

目的观察难愈性创面患者创面渗出液血管内皮生长因子(vascular endothelial growth factor,VEGF)、基质金属蛋白酶13(matrix metalloproteinase-13,MMP-13)、金属蛋白酶抑制剂1(tissue inhibitor of matrix metalloproteinases-1,TIMP-1)水平,并分析其对负压封闭引流术(vacuum sealing drainage,VSD)联合人工真皮修复治疗难愈性创面临床效果的预测价值。方法选取难愈性创面患者60例纳入难愈组,普通创面患者60例为对照组。所有入选者均检测创面渗出液VEGF、MMP-13、TIMP-1水平,并计算MMP-13/TIMP-1值。采用VSD联合人工真皮修复治疗难愈性创面患者,观察临床效果,并依据临床效果将其分为有效组与无效组,比较有效组与无效组创面渗出液VEGF、MMP-13、TIMP-1水平与MMP-13/TIMP-1值,采用Logistic回归分析上述指标对VSD联合人工真皮修复治疗难愈性创面患者效果的影响,并绘制受试者工作特征曲线(receiver operating characteristic curve,ROC),分析上述指标对VSD联合人工真皮修复治疗难愈性创面患者效果的预测价值。结果难愈组MMP-13水平及MMP-13/TIMP-1值高于对照组,VEGF、TIMP-1水平低于对照组(P<0.05)。60例难愈性创面患者经VSD联合人工真皮修复治疗有效49例(81.67%),无效11例(18.33%)。无效组MMP-13、MMP-13/TIMP-1值高于有效组,VEGF、TIMP-1水平低于有效组(P<0.05)。Logistic回归分析结果显示,MMP-13(95%CI:1.037~1.165)及MMP-13/TIMP-1值(95%CI:1.410~3.458)是难愈性创面患者治疗效果的危险因素,VEGF(95%CI:0.972~0.995)、TIMP-1(95%CI:0.264~0.756)是保护因素(P<0.05)。点二列相关性分析结果显示,VEGF、TIMP-1水平与难愈性创面患者VSD联合人工真皮修复治疗效果呈正相关(r=0.410、0.448,P<0.05),MMP-13水平、MMP-13/TIMP-1值与其治疗效果呈负相关(r=-0.477、0.570,P<0.05)。绘制ROC曲线,结果显示,VEGF(95%CI:0.643~0.908)、MMP-13(95%CI:0.706~0.986)、TIMP-1(95%CI:0.712~0.943)水平及MMP-13/TIMP-1值(95%CI:0.829~0.981)对难愈性创面患者治疗效果具有一定预测价值(AUC=0.776、0.846、0.827、0.905)。结论创面渗出液VEGF、MMP-13、TIMP-1、MMP-13/TIMP-1值能够对VSD联合人工真皮修复治疗难愈性创面效果产生重要影响,临床可通过测定VEGF、MMP-13、TIMP-1、MMP-13/TIMP-1值早期预测治疗效果。

Angiogenesis Factors Associated with New Breast Cancer Cell Line AMJ13 Cultured <i>in Vitro</i>

Background: AMJ13 is a new breast cancer cell line that has been established from a 70-year-old Iraqi woman with a histological diagnosis of infiltrating ductal carcinoma. It is the first for an Iraqi population. In breast cancer, angiogenesis provides the tumor tissue, which is rapidly proliferated with oxygen and nutrients, removes wastes and increases the opportunity of cancer cells to invade other organs. Methods: The AMJ13 breast cancer cell line was represented at three different passages and incubated for interval times. Microarray panel of 43 different angiogenesis markers was used to scan the supernatant for the factors. ELISA was used to quantify some of the important angiogenesis factors released in the culture medium and to confirm absence of those who was not detected by the antibody array. RT-PCR was used to confirm the gene expression (mRNA) of studied factors. Results: Microarray analysis showed that TIMP1 and two secreted at highest levels compared to the rest of the factors with low presence of endostatin. Other non-detectable factors by microarray examined by ELISA assay that showed highest expression level of VEGF-A were obtained at earliest passage, while the highest levels of FGF-b were obtained at late passage. The VEGF-D secretion was shown low concentrations at all studied passages. There is no detectable level of EGF protein in different passages and times interval tested. There are no significant differences in secretion of sICAM between different passages and incubation periods. Conclusion is that AMJ13 cell line depends on VEGF-A as main angiogenesis factor to induce micro-vessels supported by low levels of VEGF-D for lymphatic vessels formation. AMJ13 cell line depends on FGF as growth factors as in late passages it was shifted to depend mainly on FGF completely. All of this process may be regulated by TGF-β. TIMP-1 has proangiogentic effect and has feedback talk with TIMP-2. Understanding the angiogenesis process for breast cancer can give us better targets for therapy and more effective treatments.

GDM患者血清CCL11、IL-13水平预测PE发生风险价值

目的:探讨血清趋化因子配体11(CCL11)、白介素-13(IL-13)水平对妊娠期糖尿病(GDM)患者发生子痫前期(PE)风险的预测价值。方法:回顾性收集2021年9月-2023年8月本院收治的GDM患者144例临床资料,根据是否发生PE分为GDM合并PE组(n=52)和单纯GDM组(n=92),同期产前检查正常孕妇120例作为对照组。比较3组血清CCL11、IL-13水平;采用受试者工作特性(ROC)曲线评估血清CCL11、IL-13对GDM患者发生PE的预测价值;采用二分类logistic逐步回归分析探讨GDM患者发生PE影响因素。结果:血清CCL11水平GDM合并PE组(77.98±8.35 pg/ml)、单纯GDM组(44.69±5.13 pg/ml)、对照组(25.73±4.05 pg/ml)依次降低,血清IL-13水平GDM合并PE组(12.43±2.84 pg/ml)、单纯GDM组(18.23±3.37 pg/ml)、对照组(27.42±4.14 pg/ml)依次升高(均P<0.05)。血清CCL11、IL-13及两项指标联合预测GDM患者发生PE的曲线下面积(AUC)分别为0.768、0.853、0.911,特异度分别为56.1%、65.6%、86.4%,灵敏度分别为90.7%、90.7%、84.5%。回归分析显示,孕前BMI高(OR=2.073)、HOMA-IR高(OR=2.333)、CCL11≥61.10pg/ml(OR=2.697)、IL-13≤15.31pg/ml(OR=0.299)是GDM患者发生PE的独立危险因素(均P<0.05)。结论:GDM患者血清CCL11高表达、IL-13低表达与发生PE有关,且这两项指标可作为预测GDM患者发生PE风险的生物标记物。

Correlation of serum ADAMTS-1 and ADAMTS-13 contents with plaque nature, inflammatory factors and adipocytokines in patients with coronary heart disease

Objective: To investigate the correlation of serum ADAMTS-1 and ADAMTS-13 contents with plaque nature, inflammatory factors and adipocytokines in patients with coronary heart disease. Methods: A total of 106 patients with coronary heart disease undergoing examination in the hospital between September 2014 and June 2017 were enrolled in coronary heart disease group, and 100 healthy volunteers were enrolled in normal control group. Differences in serum ADAMTS-1, ADAMTS-13, plaque nature-related index, inflammatory factor and adipocytokine contents were compared between the two groups. Pearson test was used to assess the correlation of ADAMTS-1 and ADAMTS-13 contents with plaque nature, inflammatory factor and adipocytokines in patients with coronary heart disease. Results: Serum ADAMTS-1 content of coronary heart disease group was higher than that of normal control group whereas ADAMTS-13 content was lower than that of normal control group;serum plaque nature-related indexes Hcy and UA contents were higher than those of normal control group;serum inflammatory factors HMGB1, IL-6, IL-8 and IL-18 contents were higher than those of normal control group;serum adipocytokines APN and Vaspin contents were lower than those of normal control group whereas Visfatin and RBP4 contents were higher than those of normal control group. Pearson test showed that serum ADAMTS-1 and ADAMTS-13 contents of patients with coronary heart disease were directly correlated with the contents of plaque nature-related indexes, inflammatory factors and adipocytokines. Conclusion: Serum ADAMTS-1 content abnormally increases and ADAMTS-13 content abnormally decreases in patients with coronary heart disease, and the specific contents are directly correlated with the condition of coronary heart disease.

血清PAPP-A、PP13和sFlt-1/PlGF比值检测对子痫前期高危孕妇患病的预测价值

目的分析血清妊娠相关α血浆蛋白(PAPP-A)、胎盘蛋白13(PP13)和可溶性胎盘血管内皮生长因子受体-1(sFlt-1)/胎盘生长因子(PlGF)比值检测对子痫前期(PE)高危因素孕妇PE发生的预测价值。方法选取2021年3月至2023年3月合肥市第二人民医院收治的187例具有PE高危因素的孕妇,根据妊娠20周后是否发生PE分为患病组(28例)和未患病组(159例)。收集所有孕妇一般资料,并采用酶联免疫吸附试验检测所有孕妇血清PAPP-A、PP13、sFlt-1、PlGF水平,采用Pearson相关分析各指标的关系,绘制受试者工作特征(ROC)曲线评估各项指标对PE发生的预测价值。结果妊娠16周及分娩前患病组血清PAPP-A水平均低于未患病组,血清PP13水平均高于未患病组,sFlt-1/PlGF比值均高于未患病组,差异有统计学意义(t值介于4.198~8.173之间,P<0.05);患病组孕妇经干预治疗后血清PAPP-A水平升高,血清PP13水平降低,sFlt-1/PlGF比值降低,差异有统计学意义(t值介于2.024~3.671之间,P<0.05);血清PAPP-A水平与PP13、sFlt-1/PlGF比值均呈负相关性(r值分别为-0.836、-0.775,P<0.05),血清PP13水平与sFlt-1/PlGF比值呈正相关性(r=0.670,P<0.05);ROC分析结果显示,血清PAPP-A、PP13、sFlt-1/PlGF预测PE发生的曲线下面积(AUC)分别为0.810、0.805、0.798,均有一定的预测价值(P<0.05)。结论血清PAPP-A、PP13和sFlt-1/PlGF比值对PE高危因素孕妇发生PE有较高的预测价值。

FGF13通过调节线粒体功能对下牙槽神经损伤修复的作用研究

目的:探究成纤维细胞生长因子13(fibroblast growth factor 13,FGF13)在下牙槽神经损伤修复中的作用及机制。方法:建立SD(Sprague-Dawley)大鼠下牙槽神经损伤模型,在损伤后1、3、7 d时收取下牙槽神经组织样本RNA,实时定量聚合酶链反应(real-time quantitative polymerase chain reaction,RT-qPCR)检测损伤后不同时间FGF13基因的表达水平;提取新生SD大鼠的原代三叉神经细胞,并将其分为实验组和对照组,分别转染FGF13过表达质粒和对照质粒,转染成功后3 d提取细胞RNA,利用RT-qPCR检测神经营养因子的基因表达水平,并对三叉神经细胞进行Neun和βⅢ-Tubulin免疫荧光染色,使用激光扫描共聚焦显微镜摄片,观测神经细胞的轴突长度;将ND7/23神经细胞分为过表达组(ND7/23-FGF13)和对照组(ND7/23-vector),分别转染FGF13过表达慢病毒和对照病毒,嘌呤霉素筛出稳转株,进行FGF13蛋白免疫荧光染色和JC-1线粒体膜电位荧光探针染色,提取细胞RNA,利用RT-qPCR检测线粒体自噬相关基因的表达。结果:下牙槽神经损伤后1 d,该组织的FGF13表达量显著升高,损伤后3 d表达量降低,损伤后7 d表达量降至对照组水平;实验组与对照组相比,其FGF13、神经生长因子(nerve growth factor,NGF)、脑源性神经营养因子(brain-derived neurotrophic factor,BDNF)等表达量升高,实验组细胞轴突长度大于对照组;慢病毒过表达组与对照组相比,FGF13蛋白在细胞核中分布更密集,线粒体膜电位明显升高,线粒体自噬相关基因表达量升高。结论:下牙槽神经损伤后,FGF13表达量出现一过性升高,其对下牙槽神经的修复过程可能具有潜在意义;在三叉神经细胞中过表达FGF13可以促进神经细胞的轴突伸长,其内在机制可能与调节线粒体功能、促进线粒体稳态有关。

ADRB2、FCER2、IL-13及IL-4基因多态性与环境因素对儿童哮喘易感性交互影响

目的探讨β2肾上腺素受体(ADRB2)rs1042713、免疫球蛋白E高亲和力受体2(FCER2)rs28364072、白细胞介素-13(IL-13)rs20541及IL-4 rs22432504种基因多态性、环境因素及其交互作用对重庆地区儿童哮喘发病的影响,旨在为儿童哮喘的早期诊断及有效防治提供科学依据。方法选取2020年11月至2022年9月就诊于该院儿科哮喘门诊的哮喘患儿88例作为病例组,同期于该院儿童保健科健康体检的非哮喘健康儿童80例作为对照组。收集2组研究对象的人口学资料,运用多重聚合酶链反应结合高通量测序技术检测目标基因。使用logistic回归分析环境因素对儿童哮喘的影响,并采用广义多因子降维法深入探究基因与环境之间的交互作用。结果蟑螂、宠物暴露是儿童哮喘发病的明显危险因素(优势比=2.791、3.055,95%可信区间1.353~5.757、1.453~6.423,P=0.005、0.003)。2组研究对象rs1042713、rs28364072、rs20541基因型分布比较,差异均有统计学意义(P<0.05);rs2243250基因型分布比较,差异无统计学意义(P>0.05)。rs2836072与rs20541、rs1042713位点的交互作用对儿童哮喘的发病具有明显影响,差异均有统计学意义(P<0.05)。结论重庆地区蟑螂、宠物暴露是增加儿童哮喘风险的重要因素,rs1042713、rs2836072、rs20541基因多态性与儿童哮喘的易感性密切相关,这些基因多态性与环境因素的交互作用共同影响着儿童哮喘的发病风险。

原发性肾病综合征儿童血清Apelin-13 FOXO1表达水平及其临床意义

目的探究原发性肾病综合征儿童血清Apelin-13、FOXO1表达水平及其临床意义。方法选取2019年1月至2022年12月在本院收治的183例原发性肾病综合征儿童作为研究组。另选取同时期在本院体检的185名体检健康的儿童作为对照组,苏木精-伊红(ELISA)法检测血清Apelin-13、FOX-O1水平;采用Pearson法分析Apelin-13、FOXO1水平与血脂指标的关系;使用受试者工作特征(ROC)曲线分析Apelin-13、FOXO1对原发性肾病综合征的诊断价值;多因素Logistic回归分析影响原发性肾病综合征发生的危险因素。结果与对照组比较,研究组患儿血清Apelin-13水平降低,甘油三酯(TG)、总胆固醇(TC)、低密度脂蛋白胆固醇(LDL-C)、载脂蛋白(apo)B、FOXO1水平升高(P<0.05);与研究组治疗前比较,治疗后血清Apelin-13水平升高,TG、TC、LDL-C、apoB、FOXO1水平降低(P<0.05);Pearson相关性分析表明,原发性肾病综合征患儿血清Apelin-13与TG、TC、LDL-C、apoB均呈负相关,FOXO1与TG、TC、LDL-C、apoB均呈正相关(P<0.05);ROC曲线分析表明,Apelin-13、FOXO1诊断原发性肾病综合征发生的曲线下面积(AUC)为0.795、0.734,二者联合诊断的AUC为0.920;多因素Logistic回归分析显示,Apelin-13与FOX-O1是影响原发性肾病综合征发生的危险因素。结论原发性肾病综合征儿童血清Apelin-13呈低表达、FOXO1呈高表达,二者与血脂水平有关,并且对原发性肾病综合征具有一定的诊断价值。

非酒精性脂肪性肝病患者血清IL-1RA、CTRP13和CK-18水平变化及其临床意义探讨

目的探讨非酒精性脂肪性肝病(NAFLD)患者血清白细胞介素-1受体拮抗剂(IL-1RA)、补体C1q肿瘤坏死因子相关蛋白13(CTRP13)和细胞角蛋白18(CK-18)水平变化及其临床意义。方法2021年1月~2023年1月我院收治的67例NAFLD患者和55例健康体检者,经肝活检诊断肝脏脂肪变性分级,采用ELISA法检测血清IL-1RA、CTRP13和CK-18水平。应用多元Logistic回归分析危险因素。结果NAFLD组血清IL-1RA和CTRP13水平分别为(328.6±54.3)pg/ml和(2634.2±397.5)pg/ml,显著低于健康人组【分别为(673.1±125.4)pg/ml和(3425.7±423.8)pg/ml,P<0.05】,而血清CK-18水平为(15.2±3.1)ng/ml,显著高于健康人组【(3.9±0.7)ng/ml,P<0.05】;17例F3级肝脂肪变性患者血清IL-1RA和CTRP13水平分别为(256.3±47.6)pg/ml和(2056.3±308.4)pg/ml,显著低于29例F1级患者【分别为(388.3±59.4)pg/ml和(3071.5±409.3)pg/ml,P<0.05】或21例F2级患者【分别为(304.7±50.1)pg/ml和(2498.1±374.2)pg/ml,P<0.05】,而血清CK-18水平为(23.4±4.7)ng/ml,显著高于F1级患者【(8.1±1.3)ng/ml,P<0.05】或F2级患者【(18.5±2.9)ng/ml,P<0.05】;F3级肝脂肪变性患者肥胖、合并糖尿病、合并高脂血症、有代谢综合征家族史、血清IL-1RA≥256.5pg/ml、CTRP13≥2056.5pg/ml和CK-18≥21.6 ng/ml占比分别为70.6%、76.5%、88.2%、70.6%、35.3%、35.3%和70.6%,与50例F1/F2级的38.0%、42.0%、40.0%、30.0%、92.0%、80.0%和10.0%比,差异显著(P<0.05);多因素Logistic回归分析表明,肥胖【OR(95%)为2.0(1.1~3.6)】、合并糖尿病【OR(95%)为2.1(1.1~4.1)】、合并高脂血症【OR(95%)为1.6(1.0~2.6)】、IL-1RA【OR(95%)为0.5(0.3~0.9)】、CTRP13【OR(95%)为0.5(0.3~0.9)】和CK-18【OR(95%)为1.7(1.2~2.5)】为影响NAFLD患者肝脏脂肪变性程度的危险因素(P<0.05)。结论NAFLD患者血清IL-1RA、CTRP13和CK-18水平异常变化可能为评估肝脏脂肪变性程度提供一定的依据。

血清Gal⁃13、FGF⁃21水平诊断子痫前期和评估病情的价值

目的观察子痫前期患者血清半乳糖凝集素⁃13(Gal⁃13)、成纤维细胞生长因子⁃21(FGF⁃21)表达情况,探讨Gal⁃13、FGF⁃21诊断子痫前期和评估病情的价值。方法纳入2020年12月至2023年10月期间延安大学咸阳医院收治95例子痫前期患者为子痫前期组,收集患者一般资料,根据病情程度分为轻度组52例和中/重度组43例;选取同期92名正常孕妇为健康对照组。采用酶联免疫吸附(ELISA)法检测血清Gal⁃13、FGF⁃21水平;采用受试者工作特征(ROC)曲线分析血清Gal⁃13、FGF⁃21水平对子痫前期的诊断价值及对子痫前期病情程度的评估价值;采用多因素Logistic回归分析子痫前期病情程度的影响因素。结果子痫前期组血清FGF⁃21水平高于健康对照组,Gal⁃13水平低于健康对照组,差异有统计学意义(P<0.05)。血清Gal⁃13、FGF⁃21水平单独及二者联合诊断子痫前期的AUC分别为0.780、0.848、0.884。中/重度组年龄>30岁比例、体质量指数>23 kg/m^(2)比例及血清FGF⁃21水平高于轻度组,Gal⁃13水平低于轻度组,差异有统计学意义(P<0.05)。血清Gal⁃13、FGF⁃21水平单独及二者联合评估子痫前期病情程度的AUC分别为0.856、0.784、0.919。Gal⁃13>9.39 ng/mL是子痫前期病情程度发展为中/重度的保护因素(P<0.05),FGF⁃21>270.76μg/L是子痫前期病情程度发展为中/重度的独立危险因素(P<0.05)。结论子痫前期患者血清Gal⁃13水平降低,FGF⁃21水平升高,二者联合检测可有效诊断子痫前期,同时可对疾病程度进行评估。

血清Krüppel样因子2和血管紧张素Ⅱ受体样1内源性配体13对血液透析患者自体动静脉内瘘狭窄的预测价值

目的探讨血清Krüppel样因子2(KLF2)、血管紧张素Ⅱ受体样1内源性配体13(Apelin-13)水平对血液透析患者自体动静脉内瘘(AVF)狭窄的预测价值。方法选取2018年6月至2022年12月山东省济南市人民医院收治的214例以AVF为血管通路的血液透析患者为血液透析组,另选取同期53例体检健康者为对照组。血液透析组患者根据是否伴有AVF狭窄分为狭窄组(37例)和非狭窄组(177例)。记录患者临床资料,采用酶联免疫吸附试验法检测血清KLF2、Apelin-13水平。通过多因素Logistic回归方法分析血液透析患者AVF狭窄的影响因素,采用受试者工作特征(ROC)曲线分析血清KLF2、Apelin-13水平对血液透析患者AVF狭窄的预测价值。结果血液透析组血清KLF2、Apelin-13水平均低于对照组(均P<0.001)。狭窄组年龄、透析龄、透析中低血压比例、超滤率、低密度脂蛋白胆固醇水平均大于/长于/高于非狭窄组,体重指数、收缩压、KLF2、Apelin-13水平均低于非狭窄组(均P<0.05)。多因素Logistic回归分析结果显示,透析龄延长、透析中低血压、超滤率增加为血液透析患者AVF狭窄的独立危险因素,体重指数增加、KLF2升高、Apelin-13升高为独立保护因素(均P<0.05)。ROC曲线分析结果显示,血清KLF2、Apelin-13单独与联合预测血液透析患者AVF狭窄的曲线下面积分别为0.797、0.794、0.907,敏感度分别为54.05%、100.00%、91.89%,特异度分别为92.66%、50.85%、83.05%。结论血清KLF2、Apelin-13水平降低与血液透析患者AVF狭窄密切相关,可作为AVF狭窄的辅助预测指标。