Correlation analysis of human papillomavirus E6/E7 mRNA detection with diagnosis,prognosis and recurrence risk in patients with cervical epithelioma

BACKGROUND Cervical intraepithelial neoplasia(CIN)is an important precursor of cervical cancer.Early detection and treatment can reduce the incidence of cervical cancer.AIM To investigate the detection rate of human papillomavirus(HPV)E6/E7 mRNA in cervical tissue of patients with different types of epithelial cell neoplasia(CIN)and its relationship with CIN progression and diagnosis.METHODS One hundred women with HPV infection detected by cervical exfoliation cytology between January 2022 and January 2023 were retrospectively selected.These patients were graded CIN based on colposcopy and cervical pathology.The positive expression rates of HPV E6/E7 mRNA and HPV[polymerase chain reaction(PCR)-reverse dot crossing]were compared among all groups.Patients with HPV E6/E7 mRNA expression in the grade 1 CIN group were followed up for 1 yr.The relationship between atypical squamous epithelium and high malignant epithelial neoplasia was investigated by univariate and multivariate analysis.RESULTS The diagnostic sensitivity,specificity,and sensitivity of PCR-reverse point hybrid ization technology for secondary CIN were 70.41%,70.66%,and 0.714,respectively.Sensitivity and specificity for secondary CIN were 752%and 7853%,respectively,the area under the curve value was 0.789.Logistic Multifactorial model analysis revealed that the HPV positive rates and the HPV E6/E7 mRNA positive rates were independent risk factors of CIN grade I(P<0.05).In CIN grade I patients with positive for HPV E6/E7 mRNA,in its orientation to grade CIN patients,in its orientation to grade CIN patients,at 69.2%,compared with patients negative for HPV E6/E7 mRNA(30.8%),significant difference(P<0.05).CONCLUSION HPV E6/E7 mRNA and HPV(PCR-reverse dot hybrid)positive expression have a close relationship with CINgrade disease progression and is an independent risk factor for high-grade CIN lesions.

UAV-mounted Ground Penetrating Radar: an example for the stability analysis of a mountain rock debris slope

This paper describes scientific research conducted to highlight the potential of an integrated GPR-UAV system in engineering-geological applications.The analysis focused on the stability of a natural scree slope in the Germanasca Valley,in the western Italian Alps.As a consequence of its steep shape and the related geological hazard,the study used different remote sensed methodologies such as UAV photogrammetry and geophysics survey by a GPR-drone integrated system.Furthermore,conventional in-situ surveys led to the collection of geological and geomorphological data.The use of the UAV-mounted GPR allowed us to investigate the bedrock depth under the detrital slope deposit,using a non-invasive technique able to conduct surveys on inaccessible areas prone to hazardous conditions for operators.The collected evidence and the results of the analysis highlighted the stability of the slope with Factors of Safety,verified in static conditions(i.e.,natural static condition and static condition with snow cover),slightly above the stability limit value of 1.On the contrary,the dynamic loading conditions(i.e.,seismic action applied)showed a Factor of Safety below the stability limit value.The UAV-mounted GPR represented an essential contribution to the surveys allowing the definition of the interface debris deposit-bedrock,which are useful to design the slope model and to evaluate the scree slope stability in different conditions.

Association of neuroelectrophysiology and analysis of cerebrospinal fluid immunoglobulin with pathogenetic conditions of patients with Guillain-Barre syndrome

BACKGROUND： Guillain-Barre syndrome （GBS） is an autoimmune disease which is characterized by demyelination of peripheral nerve and nerve root, and inflammatory reaction of lymphocyte and macrophage. Neuroelectrophysiological examination and cerebrospinal fluid （CSF） analysis are of significance for its diagnosis. OBJECTIVE： To study the association of neuroelectrophysiology and cerebrospinal fluid immunoglobulin （CSF-lg） with pathogenetic conditions of patients with GBS. DESIGN： Case control study SETTING： Department of Neurology, Shenzhen Municipal Shekou Group Hospital; Department of Neuroelectrophysiology, People＇s Hospital of Guangdong Province. PARTICIPANTS： A total of 32 GBS patients including 18 males and 14 females who aged from 17 to 72 years were selected as experimental group from the Department of Neurology, People＇s Hospital of Guang- dong Province from January 2004 to December 2005. All cases conformed with GBS diagnostic criteria established by Asbury in 1990 and they were divided into three types according to neurological criteria established by Chinese Neurology and Psychology Journal in 1993： mild, moderate and severe types. Another 30 patients with vascular headache were selected as control group from the same hospital including 14 males and 16 females who aged from 17 to 79 years. METHODS： ① Neuroelectrophysiological examination： Multiple-functional electromyography device provided by Nicolet Company, USA was used to measure nerve conduction velocity （NCV）, including motor nerve conduction velocity （MCV） and sensory nerve conduction velocity （SCV）; meanwhile, electromyologram （EMG）, somatosensory evoked potential （SEP） and electroencephalogram （EEG） were also measured. ② Detection of CSF-lg： Concentrations of IgG, IgA and IgM were measured with immunofixation electrophoresis. ③Follow-up： Among 32 GBS patients, 14 cases received follow-up after treatment and the longest fol- low-up time was 1 year after onset. Among them, 8 cases were reexaminined with neuroelectrophysiological and CSF examinations. MAIN OUTCOME MEASURES： Results of NCV, EMG, SEP and EEG; comparison of CSF-lg content; results of follow-up examinations. RESULTS： All 32 GBS cases and 30 patients with vascular headache were involved in the final analysis. ① Abnormal rate of neuroelectrophysiological test： 75% of NCV, 88% of F-wave, 53% of MCV, 25% of SEP, 47% of EMG and 31% of EEG. There were no significant differences among various types （P 〉 0.05）. ② Results of CSF-lg test： There were no significant differences among various types （P 〉 0.05）; however, abnormalities in experimental group was higher than those in control group （P 〈 0.01）. CONCLUSION ： Results of follow-up study suggest that improvement of clinical symptom is earlier than neuroelectrophysiological recovery; MCV and EMG recoveries are faster than that of NCV; the earlier the abnormality of EMG, the poorer the recovery. CSF4g recovers normally along improvement of clinical symptoms. It is of significance for neuroelectrophysiology and abnormality of CSF-Ig to determine degree of peripheral nerve demyelination and prognosis.

慢性荨麻疹患者血清PAF、抗-CCD IgE水平变化及临床意义分析

目的探讨慢性荨麻疹患者血清血小板活化因子(platelet activating factor,PAF)、抗交叉反应性糖类决定簇免疫球蛋白E(anti-cross reactive carbohydrate determinants immunoglobulin E,抗-CCD IgE)水平变化及临床意义,为临床诊断及病情程度、预后评估提供参考依据。方法选取2021年5月—2023年5月广州市皮肤病防治所收治的100例慢性荨麻疹患者,根据荨麻疹活动评分分为轻度组(n=41)、中度组(n=35)和重度组(n=24)。采集患者空腹静脉血,通过酶联免疫吸附法测定血清PAF水平,通过斑点免疫印迹法测定抗-CCD IgE、过敏原特异性免疫球蛋白E(specific immunoglobulin E,sIgE)。比较不同病情程度慢性荨麻疹患者血清PAF水平,分析慢性荨麻疹患者血清PAF水平与荨麻疹活动评分相关性,比较不同临床特征慢性荨麻疹患者抗-CCD IgE阳性率。结果中度组、重度组患者血清PAF水平高于轻度组,重度组患者血清PAF水平高于中度组,差异有统计学意义(P<0.05)。Pearson相关分析结果显示,慢性荨麻疹患者血清PAF水平与荨麻疹活动评分呈正相关性(r=0.491,P<0.001)。年龄≥45岁、重度病情、sIgE阳性患者抗-CCD IgE阳性率高于年龄<45岁、轻度病情、sIgE阴性患者,差异有统计学意义(P<0.05)。抗-CCD IgE阳性患者中过敏原阳性最高的为尘螨组合(66.67%),其次为蟑螂、螃蟹、普通豚草,分别为55.56%、44.44%和44.44%。结论慢性荨麻疹患者血清PAF水平与病情密切相关,且抗-CCD IgE水平与sIgE水平有一定关系,抗-CCD IgE阳性表达情况对sIgE试验存在一定干扰,分析试验结果时应考虑抗-CCD IgE的影响。

外周血指标对鼻息肉患者黏膜中IL-5和金黄色葡萄球菌肠毒素特异性免疫球蛋白E阳性表达的预测价值

目的借助外周血指标预测慢性鼻窦炎伴鼻息肉(CRSwNP)2型生物标志物。方法收集2020年6月~2022年5月在北京同仁医院鼻科住院的CRSwNP患者临床资料,检测外周血中嗜酸粒细胞百分比(Eos%)、Eos计数、骨膜蛋白和总IgE以及CRSwNP黏膜中白细胞介素5(IL-5)和金黄色葡萄球菌肠毒素特异性免疫球蛋白E(Staphylococcus aureus enterotoxinimmunoglobulin E,SE-IgE)。应用受试者工作特征(ROC)曲线评估每个外周血指标对黏膜IL-5/SE-IgE阳性表达预测价值,利用Logistic回归筛选对黏膜IL-5/SE-IgE阳性有预测价值的外周血指标,构建诺模图模型。结果CRSwNP患者哮喘比例、血中Eos%、骨膜蛋白和总IgE在IL-5/SE-IgE阳性和阴性两组之间,均具有统计学差异。ROC曲线单因素分析显示血Eos%、Eos计数、骨膜蛋白和总IgE对黏膜IL-5和SE-IgE阳性预测的AUC分别波动在0.655~0.784和0.721~0.802,Logistic回归确认血中Eos%、总IgE和血中骨膜蛋白、总IgE可分别作为IL-5和SE-IgE阳性的独立预测因素。构建预测CRSwNP黏膜IL-5/SE-IgE阳性的诺模图模型,一致性指数(C-index)为0.804和0.81,提示具有很好的预测准确性。结论血中Eos%、总IgE和血中骨膜蛋白、总IgE分别构建的诺模图,对CRSwNP黏膜IL-5和SE-IgE阳性表达具有很好的预测价值,可以预判CRSwNP内型和表型严重性。

基于eHEALS的广东省老年人电子健康素养研究

利用eHEALS健康素养量表,调查老年人电子健康素养水平,并深入分析探讨老年人电子健康素养现状及其影响因素。研究显示:受教育程度、互联网利用情况、健康自评状态、健康信息源获取渠道、给定健康信息源利用倾向和信息回避行为对老年人电子健康素养水平存在显著的直接影响。基于此,从公共图书馆视角提出了提升老年人电子健康素养水平的策略。

成人支气管哮喘患者血清总IgE和过敏原特异性IgE检测结果分析

目的探讨成人支气管哮喘患者过敏原总免疫球蛋白E(tlgE)和特异性免疫球蛋白E(sIgE)的分布特征,以期为准确识别和区分过敏性哮喘患者提供帮助。方法选取2020年1月至2022年12月就诊于北京朝阳医院京西院区呼吸科临床诊断为支气管哮喘疾病的成人患者717例,应用德国西门子公司(Siemens)全自动特定蛋白仪BN II和瑞典Phadia AB公司Phadia 250全自动荧光酶联免疫分析系统分别检测患者血清tlgE和过敏原sIgE,对血清tlgE和sIgE检测结果进行回顾性分析。结果成人支气管哮喘患者tlgE和sIgE的总阳性率分别为50.5%和34.4%。室内过敏原比食物过敏原更常见。过敏原slgE阳性率前3位依次为户尘螨(d1)、霉菌和酵母组合2(mx2)和狗皮屑(e5);致敏重度率前3位的为e5、食物组合5(fx5)和d1。对于e5和mx2,男性sIgE阳性率明显高于女性(P<0.05),青年组明显高于老年组(P<0.05)。多重过敏患者占sIgE的阳性患者的66%,青年组和老年组较中年组更为常见。d1阳性样本中合并至少其他一种过敏原的患者占到87.1%。结论检测支气管哮喘患者血清tlgE和sIgE水平,有助于区分和鉴别过敏性哮喘。研究发现,在成人过敏原阳性患者中,d1、mx2、e5为最主要的吸入性过敏原。青年男性是更易致敏的人群;青年和老年群体通常会出现多重致敏的现象。

过敏原特异性IgE抗体检测在儿童呼吸道过敏性疾病诊治中的应用效果分析

目的探讨过敏原特异性免疫球蛋白E(sIgE)抗体在儿童呼吸道过敏性疾病患儿中的阳性分布特征,旨在为临床诊治提供依据。方法采用回顾式分析法对200例呼吸道过敏性疾病患儿过敏原s IgE表达情况进行分析,观察患儿血清总IgE阳性率、过敏原s IgE阳性率及不同类型过敏原s IgE阳性率。结果在200例呼吸道过敏性疾病患儿中,血清总IgE阳性率为68.50%(137/200),其中男性患儿和女性患儿的阳性率分别为68.52%、68.48%,男女患儿的总IgE阳性率无显著差异(P>0.05)。0~3岁、4~6岁、7~12岁患儿的阳性率分别为67.62%、69.56%、69.23%,不同年龄段患儿的总IgE阳性率无显著差异(P>0.05)。过敏性鼻炎、慢性咳嗽、支气管炎、肺炎、哮喘患儿的阳性率分别为68.18%、71.43%、66.67%、73.33%、68.14%,不同疾病类型患儿的总IgE阳性率无显著差异(P>0.05)。200例患儿中过敏原sIgE阳性率为62.50%(125/200)。125例sIgE阳性患儿中,吸入性过敏原sIgE阳性率为35.50%(71/200),食物性过敏原sIgE阳性率为11.00%(22/200),同时存在两组(吸入性和食物性)过敏原s IgE阳性率为16.00%(32/200),不同过敏原sIgE阳性率比较具有显著差异(P<0.05)。过敏原s IgE阳性患儿中,男女患儿数分别为67、58例,阳性率分别为62.04%、63.04%,男女患儿过敏原s IgE阳性率无显著差异(P>0.05)。吸入性过敏原s IgE阳性率患儿中排名靠前的过敏原有(从高到低):粉尘螨(34.50%)、户尘螨(25.50%)、链格孢(18.00%)。食物性过敏原sIgE阳性率患儿中排名靠前的过敏原有(从高到低):鸡蛋白(13.00%)、小麦(8.50%)、花生(6.50%)、大豆(5.00%)、蟹(5.00%)。结论儿童呼吸道过敏性疾病患儿采用血清过敏原sIgE抗体检测能够提供关于过敏原特异性的信息,帮助指导临床诊断和治疗,在疾病诊断与治疗中发挥着较大的作用。

不同程度儿童1型糖尿病酮症酸中毒与血清hs-CRP、IL-10、IgE、NLR水平的相关性分析

目的探讨不同程度儿童1型糖尿病酮症酸中毒血清高敏-C反应蛋白(high-sensitivity C-reactive pro-tein,hs-CRP)、白细胞介素-10(interleukin-10,IL-10)、免疫球蛋白E(serum immunoglobulin E,IgE)、中性粒细胞与淋巴细胞比值(neutrophil to lymphocyte ratio,NLR)水平的相关性。方法回顾性选取2022年1月—2023年5月淄博市妇幼保健院收治的52例儿童1型糖尿病酮症酸中毒患儿的临床资料,进行血清hs-CRP、IL-10、IgE、NLR检测,对检测结果进行相关性分析。结果重度酮症酸中毒患儿血清hs-CRP、IL-10高于轻度、中度患儿,IgE水平低于轻度、中度患儿,差异有统计学意义(P均<0.05)。儿童1型糖尿病酮症酸中毒的严重程度与血清hs-CRP、IL-10呈正相关,与IgE呈负相关(P均<0.05);与NLR无相关性(P>0.05)。结论对于儿童1型糖尿病酮症酸中毒的诊断中,血清hs-CRP、IL-10、IgE均发挥重要作用,NLR对于细菌感染的判断具有积极作用,可更好的对疾病进行诊断,同时监控疾病进展,是诊断和评估病情变化的重要指标。

基于DEA模型的陕西县域电商扶贫效率测度及空间特征研究

农村电商作为助力乡村振兴的新引擎,测度电商扶贫效率及其空间特征分析对推进乡村振兴具有重要意义。提出一种基于数据包络分析的县域电子商务扶贫效率测度方法,对陕西省84个县域进行静态测算,并分析其空间特征。研究结果显示陕西关中、陕北、陕南地区84个县域的电商扶贫综合效率均值为0.613,陕西大部分区县电商扶贫综合效率较低,陕北地区的电商扶贫综合效率最高,与关中、陕南的电商扶贫效率差距较大。陕西县域电商扶贫存在发展不均衡的问题。在空间特征方面,在陕西各县域,电商的发展还处于较为初级的阶段,未能形成相似的产业集群。鉴于此,根据不同县域电商扶贫效率的特点,提出了促进电商扶贫发展的意见和建议。

荧光酶联免疫法和免疫印迹法检测过敏原特异性免疫球蛋白E一致性分析

目的 以荧光酶联免疫法的Immuno CAP系统为标准方法,探讨免疫印迹法的Allergy Screen系统的检验效能及在不同系统疾病诊疗中的临床应用价值。方法 收集2017年至2022年就诊于首都医科大学附属北京儿童医院过敏反应科的过敏原致敏患者血清样本4 525份,根据疾病类型分为呼吸系统疾病组、消化系统疾病组、多系统疾病组和其他系统疾病组。采用Allergy Screen系统检测血清中的户尘螨、粉尘螨、烟曲霉、猫毛、狗毛、豚草、艾蒿、葎草、鸡蛋、牛奶、蟹、虾过敏原sIgE。对Allergy Screen系统的检验效能、可靠性、级别一致性和不同疾病系统组的应用进行评价。结果 在检验效能上,Allergy Screen系统猫毛过敏原灵敏度最高为0.75,特异性为0.95。其次为蟹过敏原,灵敏度为0.57,特异性为0.89。Allergy Screen法检测各过敏原的Kappa值在0.122~0.866之间。豚草一致性好,Kappa值为0.866。Allergy Screen系统的Spearman相关分析结果显示,对粉尘螨、艾蒿、猫毛等级相关性均>0.7,关系非常紧密。其中粉尘螨相关性最佳,为0.757。Allergy Screen系统检测不同过敏原中,总体一致率为65.6%~90.3%,阴性符合率一致率为81.5%~97.9%,阳性一致率为9.1%~70.5%。在不同系统疾病组间检验效能比较,特异性在各系统组间差异无统计学意义。结论 Allergy Screen系统具有较高的诊断效能,适用于临床过敏原筛查检测。

E-house箱体及吊具的吊装过程受力数值计算

预装式变电站(E-house)作为电网重要的电能传输枢纽,已经被广泛应用。在安装施工过程中,箱体质量、吊具结构、吊装速度等因素均会引起箱体形变的发生,导致设备的损坏。为了解决该问题,对所设计的9.8 m×3.2 m尺寸的E-house箱体及吊具结构进行吊装受力分析,并利用有限元方法分析了吊装结构和箱体的应力变形,确定了吊具和箱体易变形损坏部位。计算结果表明,为减少轴向压力对吊具的影响,钢丝绳安全夹角应控制在60°以内,安全的吊装速度应控制在1 m/s以下。研究结果可以为后续的箱体结构设计与优化提供理论参考。

Needs Analysis of English Culture Background Introduction in Spoken English Classes

With globalization there is an increasing need for spoken English for Chinese college students. However, the situation of the teaching system of spoken English in most universities in China is not satisfactory. Influenced by the exam-oriented teaching system, great importance has been put on English grammar and the skills of reading and writing. As a result, students'enthusiasm in improving their spoken English is diminished. Actually, students need some knowledge about English culture background before they can communicate effectively. It is significant for teachers to find out the students'wants and lacks during their spoken English study. Besides, attentions should be paid to English culture background in spoken English classes by both teachers and students. This paper mainly aimed at finding out the needs of students for English culture background in spoken English classes based on the theory of needs analysis.

1701例儿童血清过敏原特异性IgE检测结果分析

目的了解上海西南地区儿童过敏原过敏情况,为该地区儿童过敏性疾病的预防、诊断和治疗提供参考依据。方法选取2019年12月至2022年8月在该院就诊且疑患过敏的0~6岁1701例儿童作为研究对象。采用荧光酶免疫法检测血清过敏原总免疫球蛋白E(IgE)和特异性IgE(sIgE)抗体水平。分析血清过敏原sIgE分布情况,比较不同过敏原致敏的相关性。结果粉尘螨阳性率最高[49.2%(414/841)],其次依次为屋尘螨[48.6%(409/841)]、牛奶[43.5%(366/841)]、鸡蛋白[36.7%(309/841)]和混合真菌[16.4%(138/841)];男童上述过敏原阳性率均高于女童;吸入性过敏原阳性率随年龄增长而升高,食物过敏原致敏大多数发生在婴幼儿早期;吸入性过敏原血清sIgE水平高于食物过敏原。屋尘螨与粉尘螨、蟹和虾均呈正相关(P<0.05)。结论螨、牛奶、鸡蛋白是上海西南地区儿童的主要过敏原;男童比女童更易过敏;相似属性过敏原之间相关性更强,吸入性过敏原与食物过敏原也有关联。

三酰甘油与APOE基因多态性在短暂性脑缺血发作患者发生急性脑梗死中的交互作用研究

目的探讨三酰甘油(TG)与载脂蛋白E(APOE)基因多态性在短暂性脑缺血发作(TIA)患者发生急性脑梗死中的交互作用。方法对2019年1月—2021年6月349例TIA进行6个月随访,根据是否发生急性脑梗死分为发生组、未发生组,比较2组一般资料、总胆固醇(TC)、低密度脂蛋白胆固醇(LDL-C)、高密度脂蛋白胆固醇(HDL-C)、TG、APOE基因多态性,并比较不同TG水平患者APOE基因多态性,使用多因素Logistic回归分析TIA发生急性脑梗死的影响因素,使用交互作用系数γ分析TG与APOE基因多态性的交互作用。结果随访6个月,共45例(12.89%)TIA患者发生急性脑梗死。发生组TG高于未发生组(P<0.01)。发生组及TG升高患者E3/3基因型、ε3等位基因频率分别低于未发生组及TG正常患者,E3/4基因型、ε4等位基因频率分别高于未发生组及TG正常患者(P<0.05)。校正TIA持续时间、TIA发作频率后,TG、APOE基因型E3/3、E3/4及等位基因ε4仍是TIA发生急性脑梗死的独立影响因素(P<0.01)。TG升高与APOE基因型E3/4在TIA发生急性脑梗死中呈正向交互作用,且交互作用符合次相乘模型。结论TG升高与APOE基因型E3/4在TIA发生急性脑梗死中呈正向交互作用,且交互作用符合次相乘模型,TG升高可增强APOE基因型E3/4对TIA发生急性脑梗死的易感性。

TOLERANCE ANALYSIS OF A PLANETARY GEAR REDUCER UNDER CAD CIRCUMSTANCE

Tolerance analysis of a planetary reducer is conducted. By focusing the serially-arranged parts in the central line and setting an appropriate dimension as a “gap”, worst-case tolerance analysis method and statistical （RSS） tolerance analysis are used, and then a tolerance-analyzing tool CE/TOL is introduced. The acceptable value range of the “gap” is from 1.5 mm to 3.5 mm. While worst-case analysis rejects the design, RSS accepts it by a more realistic result with the law of probability accounted. With the help of CE/TOL and CAD software Pro/E, all components＇ dimensions and tolerances are assigned and modified, and more detailed and more comprehensible results are gives out.

婴儿食物过敏的临床症状及血清特异性免疫球蛋白E检测结果分析

目的了解不同过敏症状患儿的食物过敏原,为婴儿食物过敏的防治提供参考依据。方法选取2022年1月至12月间于长沙市妇幼保健院儿童保健中心体检中因过敏症状采用免疫印迹法进行血清特异性免疫球蛋白E(sIgE)检测的849例婴儿为研究对象。按不同年龄将婴儿分为<6月龄与≥6月龄;根据过敏的临床症状及病史等,将其分为皮肤症状(262例)、消化道症状(113例)、营养不良症状(56例)、呼吸道症状(58例)、混合症状(360例)。对不同年龄、不同性别婴儿的食物过敏原及血清sIgE检测阳性分布情况进行比较分析。结果在849名婴儿中,有皮肤症状者占30.9%(262/849),消化道症状者占13.3%(113/849),营养不良者占6.6%(56/849),呼吸道症状者占6.8%(58/849),混合症状者占42.4%(360/849);其中,男婴占57.8%(491/849),女婴占42.2%(358/849),不同性别婴儿过敏症状的分布比较差异无统计学意义(P>0.05);<6月龄者占23.8%(202/849),≥6月龄者占76.2%(647/849),不同年龄婴儿过敏症状的分布比较差异有统计学意义(χ^(2)=49.303,P<0.001)。在849名婴儿中,食物过敏原血清sIgE检测阳性者占51.7%(439/849),阴性者占48.3%(410/849);其中,男婴食物过敏原血清sIgE检测阳性者占58.3%(256/439),女婴阳性者占41.7%(183/439),不同性别婴儿食物过敏原血清sIgE检测阳性的分布比较差异无统计学意义(P>0.05);<6月龄婴儿食物过敏原血清sIgE检测阳性占17.1%(75/439),≥6月龄者阳性占82.9%(364/439),不同年龄婴儿食物过敏原血清sIgE检测阳性的分布比较差异有统计学意义(χ^(2)=22.563,P<0.001)。不同年龄婴儿的食物过敏原数量比较差异有统计学意义(Z=-4.376,P<0.05),而不同性别婴儿的食物过敏原数量比较差异无统计学意义(P>0.05)。不同过敏症状食物过敏原血清sIgE检测阳性率及致敏种类的分布比较差异均无统计学意义(P>0.05)。在12种常见食物过敏原中,牛奶的血清sIgE检测阳性致敏程度最高可达3级,鸡蛋白的致敏程度最高可达6级;≥6月龄婴儿食物过敏原血清sIgE检测阳性率均高于<6月龄婴儿,但在不同年龄婴儿中,只有牛奶过敏原血清sIgE检测阳性率比较差异有统计学意义(χ^(2)=25.122,P<0.001),其他11种食物过敏原血清sIgE检测阳性率比较差异均无统计学意义(P>0.05)。结论婴儿早期食物过敏以皮肤症状为主,食物过敏原以牛奶、鸡蛋为主,血清sIgE检测对诊断IgE介导的食物过敏有意义,食物过敏的诊断仍需要综合其他因素分析判断。

血清IL-1β、IL-17、IgE对中、重度牙周炎合并银屑病的诊断价值

目的探讨血清白细胞介素(IL)-1β、IL-17、免疫球蛋白E(IgE)对中、重度牙周炎合并银屑病的诊断价值。方法选取2021年6-12月该院口腔科和皮肤科收治的56例中、重度牙周炎合并银屑病患者作为牙周炎合并银屑病组,52例单纯中、重度牙周炎患者作为牙周炎组,50例单纯银屑病患者作为银屑病组。另选取同期在该院体检的53例健康者作为正常组。比较4组体质量指数、受教育年限、饮酒情况、吸烟情况、直系亲属患病情况、总胆固醇(TC)、甘油三酯(TG)、高密度脂蛋白胆固醇(HDL-C)、低密度脂蛋白胆固醇(LDL-C)水平,以及血清IL-1β、IL-17、IgE水平。采用多因素Logistic回归分析中、重度牙周炎患者并发银屑病的危险因素;绘制受试者工作特征(ROC)曲线分析血清IL-1β、IL-17、IgE对中、重度牙周炎合并银屑病的诊断价值。结果牙周炎合并银屑病组、牙周炎组和银屑病组TC、TG、LDL-C水平均高于正常组,且牙周炎合并银屑病组TG、LDL-C水平均高于牙周炎组和银屑病组,TC水平高于银屑病组,差异均有统计学意义(P<0.05)。牙周炎合并银屑病组、牙周炎组和银屑病组血清IL-1β、IL-17、IgE水平高于正常组,且牙周炎合并银屑病组IL-1β、IL-17、IgE水平高于牙周炎组和银屑病组,差异均有统计学意义(P<0.05)。多因素Logistic回归分析结果显示,IL-1β、IL-17、IgE水平升高是中、重度牙周炎患者并发银屑病的危险因素(P<0.05)。ROC曲线分析结果显示,IL-1β、IL-17、IgE单独诊断中、重度牙周炎合并银屑病的曲线下面积(AUC)分别为0.804、0.849、0.828,IL-1β、IL-17、IgE联合诊断中、重度牙周炎合并银屑病的AUC为0.954。IL-1β、IL-17、IgE联合诊断中、重度牙周炎合并银屑病的AUC大于IL-1β、IL-17、IgE单独诊断的AUC(Z=4.560、4.317、3.596,P<0.05)。结论血清IL-1β、IL-17、IgE在中、重度牙周炎合并银屑病患者中的水平均升高,IL-1β、IL-17、IgE联合检测对中、重度牙周炎合并银屑病具有较高的诊断价值,可用于辅助诊断中、重度牙周炎合并银屑病。

Standard and Quantitative Analysis of Cyclin E Threshold by Cyclin E/DNA Multiparameter Flow Cytometry

The threshold of cyclin E expression at G1/S boundary is a characteristic feature of cell cycle progressing. In this study, we tried to develop a quantitative approach to analyze cyclin E threshold by multiparameter flow cytometry. The expression of cyclin E in exponentially growing MOLT-4 cells was detected under different photomultiplier tube (PMT) voltages by cyclin E/DNA multiparameter flow cytometry. Additionally, cyclin E was detected in cells which were treated with caffeine and cycloheximide (CHX) under the same PMT voltage. Moreover, the expression of cyclin E in MOLT-4 cells was compared with that in JURKAT cells. Cyclin E threshold was quantified by formula B2/A×C (A, B, C indicates the minimum, threshold, and maximum of cyclin E fluorescence intensity, respectively). Results showed that in MOLT-4 cells, cyclin E threshold calculated by formula B2/A×C was invariable under different PMT settings. It was decreased in cells treated with caffeine and remained changeless in cells treated with cycloheximide. Cyclin E threshold in JURKAT cells was much lower than that in MOLT-4 cells. It was suggested that Formula B2/A×C we firstly set up could be used to analyze cyclin E expression threshold quantitatively.

Correlation of E-selectin gene polymorphisms with risk of ischemic stroke A meta-analysis

OBJECTIVE： To investigate the association of E-selectin $128R polymorphisms with ischemic stroke. DATA SOURCES： A computer-based online search was conducted in PubMed, Elsevier, Ovid Database, the China National Knowledge Infrastructure, and Wanfang Database between January 1998 and December 2010. STUDY SELECTION： Case-controlled studies addressing the association of the E-selectin polymorphism and ischemic stroke were included in this review. The genotype distribution complied with the Hardy-Weinberg genetic equilibrium. The included reports were evaluated by two authors for strict quality screening. Meta-analysis software, REVMAN 5.1, was used to investigate heterogeneity, pooled odds ratio （OR） and 95% confidence interval （CO in individual studies. MAIN OUTCOME MEASURES： Genotype and allele distributions at the E-selectin $128R site. RESULTS： Six case-controlled studies were included after screening and application of inclusion and exclusion criteria. There was no heterogeneity in the genotype and allele frequencies, and no publication bias was found. Meta-analysis of the pooled data showed that the OR value of the （AC＋CC）/AA genotype was 1.93 （95% CI： 1.55 2.41, Z= 5.80, P 〈 0.000 01）, and the ORfor the C/A allele was 1.80 （95% CI： 1.47 2.22, Z= 5.59, P 〈 0.000 01） in the ischemic stroke group, compared with control group. Results of pooled data in Chinese subjects showed that the ORvalue of （AC＋CC）/AA was 2.36 （95% CI： 1.68 3.31, Z = 4.99, P 〈 0.000 01）, and the OR value of the C/A allele was 2.25 （95% CI： 1.63 3.12, Z= 4.89, P 〈 0.000 01）. CONCLUSION： Polymorphism of E-selectin S128R was significantly associated with susceptibility to ischemic stroke; the AC and CC genotypes as well as the C allele may be factors associated with susceptibility to ischemic stroke.