血清CA125 和OPN 联检在卵巢癌患者中的诊断价值

目的:探讨CA125和OPN联检在卵巢癌诊断中的应用价值。方法:以50例正常健康人为对照,对经组织病理学确诊的69例卵巢癌患者和54例卵巢良性肿瘤患者术前行血清CA125(放免法)和OPN(ELISA法)测定。比较二种血清标志物在正常人、卵巢良性肿瘤和卵巢癌病例中的表达水平。以正常人血清OPN均值±1.96S作为上下界,计算OPN临界值,大于临界值即为OPN阳性。血清CA125≥35 U/mL为阳性。比较三组病例中血清CA125和OPN单检及联检的灵敏度及特异性。比较二种血清标志物在卵巢癌及卵巢良性肿瘤的不同组织分型中的灵敏度。结果:卵巢癌组血清CA125和OPN的水平均显著高于正常对照组和卵巢良性肿瘤组(P<0.01),OPN临界值为27 ng/mL。在卵巢癌诊断中CA125、OPN检测的敏感度分别为66.7%和85.5%,二者联检的敏感度为95.7%。同时二者联检对浆液性囊腺癌、粘液性囊腺癌和子宫内膜样腺癌的敏感度分别为91.7%、70.0%和66.7%。结论:血清CA125和OPN是卵巢癌诊断的敏感性指标,二者联检可提高卵巢癌、特别是粘液性卵巢癌诊断的敏感度。     

血清间皮素联合CDK6诊断早期卵巢癌的临床价值研究

目的:探讨血清间皮素联合CDK6诊断早期卵巢癌的临床价值。方法:选择2014年6月~2017年6月就诊于我院妇产科的51例I~Ⅱ期卵巢癌患者(实验组)及同期经病理确诊为正常卵巢组织的43例患者(对照组)为研究对象,检测和比较其血清MSLN、CA125、CA199、HE4、VEGF-C水平及卵巢癌组织CDK6的表达。采用多因素logistic回归进一步分析两种间上述有显著差异的指标。同时,对新指标与血清CA125、CA199水平进行相关性分析,ROC曲线分析其对早期卵巢癌的诊断价值。结果:实验组血清MSLN、CA125、CA199、HE4、VEGF-C水平及CDK6表达均显著高于对照组(P0.05)。多因素logistic分析结果显示血清MSLN、CA125、CDK6表达对早期卵巢癌的诊断有价值(P0.05),且血清CA125的影响程度最高(RR=1.421)。卵巢癌患者血清MSLN(r=0.573,P=0.013)和卵巢癌组织CDK6表达(r=0.412,P=0.037)与CA125呈正相关关系。ROC曲线提示血清MSLN、CDK6表达、血清CA125及MSLN联合CDK6诊断早期卵巢癌的ROC曲线下面积分别为0.639、0.700、0.715、0.765,MSLN联合CDK6的曲线下面积最大。结论:血清MSLN联合癌组织CDK6的表达诊断早期卵巢癌的临床价值明显优于常规血清学指标CA125、CA199。     

人附睾蛋白4与血清CA125联合检测在卵巢癌诊断中的应用价值

目的：探讨人附睾蛋白4（HE4）和CA125联合检测在上皮性卵巢癌临床诊断中的应用价值。方法：用化学发光法测定51例卵巢癌患者、64例卵巢良性疾病患者和50例健康对照者血清中的HE4和CA125水平,并对结果进行比较分析。结果：卵巢癌组血清中HE4和CA125水平均显著高于卵巢良性肿瘤组和健康对照组,差异有统计学意义（P〈0．05）,卵巢良性肿瘤组与健康对照组比较无显著性差异;HE4在早期卵巢癌中的阳性率高于CA125,两者联合检测可提高卯巢癌诊断的阳性率;卵巢癌组联合检测ROC曲线下面积大于单项检测曲线下面积。结论：联合检测HE4和CA125有助于卵巢癌的早期诊断。     

卵巢癌患者血清HE4、CA125、CA72-4及炎性因子水平检测的临床价值评估

目的:探讨血清人附睾蛋白4(HE4)、糖类抗原125(CA125)、糖类抗原72-4(CA72-4)及炎性因子IL-6、IL-8、IL-17水平检测对卵巢癌患者的临床价值。方法:选取2015年2月至2017年2月我院收治的卵巢肿瘤患者81例,包括卵巢恶性肿瘤组39例及卵巢良性肿瘤组42例,另选42例健康人作正常对照组,比较各组及临床不同分期卵巢癌患者血清HE4、CA125、CA72-4、IL-6、IL-8、IL-17水平的差异。结果:卵巢恶性肿瘤组血清HE4、CA125、CA72-4、IL-6、IL-8及IL-17水平均显著高于对照组(P0.05),而卵巢良性肿瘤组与对照组以上指标比较差异并无统计学意义(P0.05);随卵巢癌分期增加,患者血清HE4、CA125、CA72-4、IL-6、IL-8及IL-17水平呈上升趋势,以血清HE4、CA125及IL-17增加较为显著(P0.05),而Ⅰ期、Ⅱ期及Ⅲ期卵巢癌患者血清CA72-4、IL-6及IL-8在增加并不明显(P0.05)。结论:卵巢癌患者血清HE4、CA125、CA72-4、IL-6、IL-8及IL-17水平较高,且随临床分期增加呈上升趋势,以上指标可能有助于卵巢癌的诊断、治疗及病情评估。     

血清OPN、HE4和CA125检测对卵巢癌的临床意义

目的：探讨联合检测血清OPN、HE4和CA125对卵巢癌的临床意义。方法：选择2010年6月-2012年7月西安市中心医院妇科及陕西省肿瘤医院妇瘤科收治的35例卵巢癌患者、73例卵巢良性肿瘤患者及40例同期体检的健康妇女为研究对象,应用ELISA法检测患者手术前后血清OPN、HE4水平,电化学发光法检测患者手术前后血清CA125水平,计算3种肿瘤标志物单项以及联合检测在卵巢癌诊断中的敏感性及特异性。结果：（1）卵巢癌患者术前血清OPN、HE4和CA125水平分别为94.6±61.06ng/mL、412.3±278.62 pmol/mL和398.64±220.91 U/mL,与卵巢良性肿瘤组及正常对照组比较差异有统计学意义（P〈0.05）;（2）卵巢癌患者手术前与术后1月血清OPN、HE4和CA125水平比较,差异均有统计学意义（P〈0.05）;（3）血清OPN、HE4和CA125水平联合检测诊断卵巢癌的敏感性（94.3%）显著高于血清OPN、HE4和CA125单项指标检测（分别为37.1%、71.4%和77.1%）,联合检测与单项指标检测比较差异均有统计学意义（P〈0.05）,而血清OPN、HE4和CA125联合检测诊断卵巢癌的特异性（78.8%）稍低于血清OPN、HE4和CA125单项指标检测（分别为87.6%、100%和80.5%）,联合检测与单项指标检测的特异性比较差异无统计学意义（P〉0.05）。血清HE4单项指标检测的特异性高达100%。结论：联合检测卵巢癌患者血清OPN、HE4和CA125水平可作为诊断和评估卵巢癌预后的参考指标。     

血清大分子量肌糖蛋白C剪接变构体水平对卵巢癌的临床意义研究

目的:探讨血清大分子量肌糖蛋白C剪接变构体(L-Tn-CSV)水平对卵巢癌的临床意义,为卵巢癌的临床诊断、治疗和预后判断提供参考依据.方法:选择143例首次发病卵巢癌患者、18例复发卵巢癌患者、40例良性卵巢肿瘤患者及30例健康人为研究对象,采用定量酶联免疫吸附试验(ELISA)检测各组血清中的L-Tn-CSV、HE4和CA125的表达水平并进行比较分析.结果:对一般卵巢癌标志物CA125和HE4与血清L-Tn-CSV诊断卵巢癌的敏感性和特异性比较发现其无统计学差异;首次发病的卵巢癌患者与复发的卵巢癌患者血清中的L-Tn-CSV水平分别为4924.1±3145.6pg/ml和4217.5± 2349.3pg/ml,显著高于健康女性(2259.3±723.2pg/ml)及良性卵巢肿瘤组(2435.6± 863.6 pg/ml)(P＜0.01);卵巢良性肿瘤组血清L-Tn-CSV含量与正常对照组比较无统计学差异(P=0.42),卵巢癌Ⅱ期、Ⅲ期、Ⅳ期患者血清L-Tn-CSV水平较Ⅰ期显著增高(P＜0.01);复发组的血清L-Tn-CSV水平明显高于卵巢良性肿瘤组和正常对照组(P＜0.01),而Ⅲ期、Ⅳ期血清L-Tn-CSV水平无统计学差异(P＞0.01);Spearman等级相关分析显示血清L-Tn-CSV水平与卵巢癌临床分期(r=0.573,P＜0.01)及复发(r=0.627,P＜0.01)呈正相关;术后血清L-Tn-CSV水平呈阴性与切除手术后治愈可能性显著相关(P＜0.01).结论:血清L-Tn-CSV水平对卵巢癌肿瘤诊断、分期及预后评估有一定的参考价值.     

血清HE4，CA125 联合经阴道超声对卵巢癌的诊断价值

目的:探讨血清人附睾蛋白4(humanepididymisprotein4,HE4)、糖类抗原125(Carbohydrateantigen125,CA125)联合经阴道超声(transvaginalsonography,TVS)对卵巢癌的诊断价值。方法:选择2013年1月~2014年12月本院确诊的卵巢病变患者500例,同期体检中心健康女性200例作为对照组,应用酶联免疫法和化学发光分析系统检测方法分别检测其血清HE4、CA125水平,并进行阴道超声检查。结果:500例卵巢病变患者经活检检查发现卵巢癌患者70例,良性卵巢疾病患者430例。卵巢癌组HE4和CA125水平均显著高于良性卵巢疾病组和健康对照组,良性卵巢疾病组HE4和CA125水平显著高于健康对照组,差异有统计学意义(P0.01)。血清HE4+CA125检测卵巢癌的敏感度为80.00%,特异度为95.11%;血清HE4+CA125+TVS联合检测卵巢癌的敏感度为94.29%,特异度为97.91%。HE4+CA125+TVS联合检测卵巢癌的敏感度和特异度均显著高于单项检测HE4、CA125或TVS(P0.05)。结论:HE4、CA125、TVS三者联合检测卵巢癌可以提高诊断的特异度和敏感度,对卵巢癌的诊断、治疗及监测具有重要意义。     

联合检测HE4、CA125和CA199对绝经后卵巢可及综合征的诊断价值

目的:探讨联合检测人附睾蛋白4(HE4)、血清糖类抗原125(CA125)和199(CA199)在绝经后卵巢可及综合征(PMPOS)中的应用价值。方法:采用化学发光法(CLIA)检测125例PMPOS患者及60例健康志愿者(对照组)血清HE4、CA125和CA199的水平,其中PMPOS患者分为良性肿瘤组(良性组,n=50)和恶性肿瘤组(恶性组,n=75)。结果:PMPOS恶性组患者血清HE4、CA125和CA199水平均显著高于良性组,有统计学差异(P0.05);也显著高于对照组,有统计学差异(P0.05)。良性组的CA125水平略高于对照组,有统计学差异(P0.05);但CA199和HE4水平与对照组比较无明显差异,无统计学差异(P0.05)。三者联合检测用于诊断PMPOS恶性肿瘤的敏感度达到81.2%,而特异度也保持在90.0%。结论:联合检测HE4、CA199和CA125可有效提高对PMPOS恶性卵巢肿瘤的诊断效率,具有较大的临床意义。     

OPN联合CA125检测在卵巢癌早期诊断中的价值

目的:观察骨桥蛋白(OPN)和癌抗原125 (CA125)联合检测在卵巢癌早期诊断中的价值.方法:采用酶联免疫吸附法(ELISA)测定32例卵巢癌患者(A组)及40例卵巢良性病变(B组)血清中ONP、CA125水平.结果:卵巢癌患者血清中OPN及CA125水平明显高于良性对照组(P＜0.05);OPN、CA125检测的敏感性分别为81.3％和71.9％,OPN+CA125联合检测的敏感性为93.8％,均高于二者的单独检测;OPN、CA125检测的特异性分别为92.5％和87.5％,OPN+CA125联合检测的敏感性为95.0％,均高于二者的单项检测;OPN+CA125联合检测的阳性预测值和阴性预测值均高于二者的单项检测.结论:OPN联合CA125联合检测可提高卵巢癌的早期诊断水平.     

血清TC、TG和LDL-C水平与老年卵巢良恶性肿瘤的相关性分析

摘要 目的：探讨与分析血清总胆固醇（TC）、甘油三脂（TG）和低密度脂蛋白胆固醇（LDL-C）水平与老年卵巢良恶性肿瘤的相关性。方法：2018年8月至2021年4月选择在本院诊治的老年卵巢癌患者72例与老年良性卵巢肿瘤患者72例作为恶性组与良性组,同期选择在本院进行健康体检的老年人72例作为正常组。检测三组血清TC、TG、LDL-C水平、血清肿瘤标志物水平并进行相关性分析。结果：恶性组、良性组的血清TC、TG和LDL-C水平高于正常组,恶性组高于良性组（P<0.05）;三组的血脂异常率分别为77.8 %、44.4 %和6.9 %,对比有差异（P<0.05）。恶性组、良性组的血清CA125、CA153和CA199水平高于正常组,恶性组高于良性组（P<0.05）。在老年卵巢肿瘤144例患者中,偏相关分析显示：TC、TG、LDL-C、CA125、CA153、CA199与卵巢癌存在相关性（P<0.05）;Pearson分析显示：TC、TG、LDL-C与CA125、CA153、CA199存在相关性（P<0.05）。二元Logistic回归分析显示：TC、TG、LDL-C均为导致卵巢癌发生的影响因素（P<0.05）。结论：老年卵巢良恶性肿瘤患者多伴随有血清TC、TG和LDL-C水平的异常,与血清肿瘤标志物水平存在相关性,是引发老年卵巢癌发生的重要因素。     

Recent advances in the study of Kaposi's sarcoma-associated herpesvirus replication and pathogenesis

It has now been over twenty years since a novel herpesviral genome was identified in Kaposi's sarcoma biopsies. Since then, the cumulative research effort by molecular biologists, virologists, clinicians, and epidemiologists alike has led to the extensive characterization of this tumor virus, Kaposi's sarcoma-associated herpesvirus(KSHV; also known as human herpesvirus 8(HHV-8)), and its associated diseases. Here we review the current knowledge of KSHV biology and pathogenesis, with a particular emphasis on new and exciting advances in the field of epigenetics. We also discuss the development and practicality of various cell culture and animal model systems to study KSHV replication and pathogenesis.     

A Unique Protease Cleavage Site Predicted in the Spike Protein of the Novel Pneumonia Coronavirus (2019-nCoV) Potentially Related to Viral Transmissibility

正Dear Editor,In December 2019, a novel human coronavirus caused an epidemic of severe pneumonia(Coronavirus Disease 2019,COVID-19) in Wuhan, Hubei, China(Wu et al. 2020; Zhu et al. 2020). So far, this virus has spread to all areas of China and even to other countries. The epidemic has caused 67,102 confirmed infections with 1526 fatal cases     

Curcuminoids as inhibitors of thioredoxin reductase: A receptor based pharmacophore study with distance mapping of the active site

Curcumin is the yellow pigment of turmeric that interacts irreversibly forming an adduct with thioredoxin reductase (TrxR), an enzyme responsible for redox control of cell and defence against oxidative stress. Docking at both the active sites of TrxR was performed to compare the potency of three naturally occurring curcuminoids, namely curcumin, demethoxy curcumin and bis-demethoxy curcumin. Results show that active sites of TrxR occur at the junction of E and F chains. Volume and area of both cavities is predicted. It has been concluded by distance mapping of the most active conformations that Se atom of catalytic residue SeCYS498, is at a distance of 3.56 from C13 of demethoxy curcumin at the E chain active site, whereas C13 carbon atom forms adduct with Se atom of SeCys 498. We report that at least one methoxy group in curcuminoids is necessary for interation with catalytic residues of thioredoxin. Pharmacophore of both active sites of the TrxR receptor for curcumin and demethoxy curcumin molecules has been drawn and proposed for design and synthesis of most probable potent antiproliferative synthetic drugs.     

Synthesis and antimicrobial studies of hydrazone derivatives of 4-[3-(2,4-difluorophenyl)-4-formyl-1H-pyrazol-1-yl]benzoic acid and 4-[3-(3,4-difluorophenyl)-4-formyl-1H-pyrazol-1-yl]benzoic acid

Microbial resistance to antibiotics is an unresolved global concern, which needs urgent and coordinated action. One of the guidelines of the Centers for Disease Control and Preventions (CDC) to combat antibiotic resistance is the development of new antibiotics to treat drug-resistant bacteria. In our effort to find new antibiotics, we report the synthesis and antimicrobial studies of 30 new pyrazole derivatives. These novel molecules have been synthesized by using readily available starting materials and benign reaction conditions. Some of these molecules have shown activity with MIC values as low as 0.78?µg/mL against four bacterial strains; Staphylococcus aureus, methicillin-resistant S. aureus, Bacillus subtilis, and Acinetobacter baumannii. Furthermore, active molecules are non-toxic to mammalian cell line.

     

Comparative morphology of the carpel in the Liliaceae: Hewardieae, Petrosavieae, and Tricyrteae

The young pistils in the melanthioid tribes, Hewardieae, Petrosavieae and Tricyrteae, are uniformly tricarpellate and syncarpous. They lack raphide idioblasts. All are multiovulate, with bitegmic ovules. The Petrosavieae are marked by the presence of septal glands and incomplete syncarpy. Tepals and stamens adhere to the ovary in the Hewardieae and the Petrosavieae but not in the Tricyrteae. Two vascular bundles occur in the stamens of the Hewartlieae and Tricyrtis latifolia. Ventral bundles in the upper part of the ovary of the Hewardieae are continuous with compound septal bundles and placental bundles in the lower part. Putative ventral bundles occur in the alternate position in the Tricyrteae and putative placental bundles in the opposite. position in the Petrosavieae. The dichtomously branched stigma in each carpel of the Tricyrteae is supplied by a bifurcated dorsal bundle.     

Novel compounds with potent CDK9 inhibitory activity for the treatment of myeloma

Cyclin-dependent kinases (CDKs) and Polo-like kinases (PLKs) play key role in the regulation of the cell cycle. The aim of our study was originally the further development of our recently discovered polo-like kinase 1 (PLK1) inhibitors. A series of new 2,4-disubstituted pyrimidine derivatives were synthesized around the original hit, but their PLK1 inhibitory activity was very poor. However the novel compounds showed nanomolar CDK9 inhibitory activity and very good antiproliferative effect on multiple myeloma cell lines (RPMI-8226).