LncRNAs in ocular neovascularizations

The prevalence of eye diseases worldwide is dramatically increasing and represents a major concern in underdeveloped and developed regions. Ocular diseases, previously associated with a higher depression risk, also impose a substantial economic burden on affected families, thus early detection and/or accurate treatment in order to avoid and prevent blindness should be emphasized. Ocular neovascularization (NV), the leading cause of blindness in a variety of eye diseases, is a pathologic process characterized by the formation, proliferation and infiltration of anomalous, tiny and leaky fragile blood vessels within the eye. Genetics have been suspected to play an important role in the occurrence of eye diseases, with the detection of a numbers of specific gene mutations. Long non-coding RNA (lncRNAs) are novel class of regulatory molecules previously associated with various biological processes and diseases, however the nature of the relation and pathways by which they might contribute to the development of corneal, choroidal and retinal NV have not yet been completely elucidated. In this review, we focus on the regulation and characteristics of lncRNAs, summarize results from ocular NV-related studies and discuss the implication of lncRNAs in ocular NV development.     

穿心莲内酯对TBHP诱导的椎间盘髓核细胞凋亡的作用及机制研究

目的：探讨穿心莲内酯（andrographolide,ANDRO）对叔丁基过氧化氢（tert-butyl hydroperoxide,TBHP）诱导的椎间盘髓核细胞（nucleus pulposus cells,NPC）凋亡的作用及其机制。方法：用TBHP诱导NPC建立细胞模型。将NPC分为5组：对照组、模型组（100μmol/L TBHP）、ANDRO低剂量组（100μmol/L TBHP+9μmol/L ANDRO）、ANDRO中剂量组（100μmol/L TBHP+18μmol/L ANDRO）和ANDRO高剂量组（100μmol/L TBHP+36μmol/L ANDRO）。流式细胞术检测细胞凋亡和活性氧（reactive oxygen species,ROS）水平,ELISA试剂盒检测氧化应激相关指标超氧化物歧化酶（superoxide dismutase,SOD）、谷胱甘肽过氧化物酶（glutathione peroxidase,GSH-PX）和过氧化氢酶（catalase,CAT）水平,JC-1探针法检测线粒体膜电位,Western blot检测动力相关蛋白1(dynam...     

基才网络环境的远程数字人体中医脉诊智能诊断系统

本文主要阐述了中医学脉诊原理,分析了脉诊数字化的可行性,描述了数字脉诊诊断系统的设计方案及进行家庭远程诊断的设想,并对该系统的应用前景作了展望。     

长链非编码RNA与子痫前期相关机制的研究进展

子痫前期（preeclampsia）是妊娠20周后出现的特发性高血压综合征,其病因和发病机制至今仍未完全阐明。长链非编码RNA（long non-coding RNA,lncRNA）是指长度大于200个核苷酸,不参与编码蛋白质的一类RNA。研究表明,lncRNA在基因表达水平、转录后修饰以及表观遗传修饰等细胞事件中发挥着重要作用。最新研究发现子痫前期胎盘中存在大量异常表达的lncRNA,推测lncRNA可能影响胎盘生长及生育过程,在子痫前期的发生中发挥了重要作用,深入研究子痫前期相关lncRNA及其调节机制可能有助于阐明子痫前期的发病机制,进而为子痫前期的预防和治疗提供新思路。     

食管癌组织中lnc RNA DNAJC3-AS1的表达及其与临床病理特征的相关性研究

目的 食管癌(esophageal cancer,EC)组织中lnc RNA DNAJC3-AS1的表达及其与临床病理特征的相关性研究.方法 选取2017年6月～2019年5月宝鸡市人民医院收集的246例EC患者的肿瘤组织及相应的癌旁正常组织为研究对象.通过实时荧光定量PCR法检测lnc RNA DNAJC3-AS1的...     

探讨血清lncRNA联合检测CEA、CA724、CA199在胃癌诊断中的临床意义

目的 探讨血清长链非编码RNA(lncRNA)FOXD2-AS1、含铜胺氧化酶4的假基因(AOC4P)的相对表达水平,以及与肿瘤标志物癌胚抗原(CEA)、糖类抗原(CA)199、CA724的联合检测在胃癌(GC)诊断中的临床应用价值。方法 收集该院80例GC患者和85例年龄相仿的体检健康者的血清以及16组GC组织与癌旁组织。利用TCGA数组库分析FOXD2-AS1在GC及癌旁组织中的表达;应用实时荧光定量聚合酶链反应(qRT-PCR)方法检测组织AOC4P,以及血清FOXD2-AS1、AOC4P的相对表达量;化学发光法检测血清CEA、CA199、CA724的水平。应用受试者工作特征(ROC)曲线评价FOXD2-AS1、AOC4P单独诊断以及其与CEA、CA199、CA724联合检测对GC的诊断效能。结果 初诊GC患者血清FOXD2-AS1、AOC4P相对表达量升高,且显著高于健康对照者,差异有统计学意义(P<0.01)。ROC曲线分析结果显示,FOXD2-AS1、AOC4P、CEA、CA199和CA724的曲线下面积(AUC)分别为0.879、0.856、0.699、0.654和...     

Serum transfer RNA‐derived fragment tRF‐31‐79MP9P9NH57SD acts as a novel diagnostic biomarker for non‐small cell lung cancer

BackgroundtRNA‐derived fragments (tRFs) have been found to have a crucial function in the pathophysiology of cancers. However, the function of tRFs in non‐small cell lung cancer (NSCLC) is yet unknown. The goal of this study was to assess the tRF‐31‐79MP9P9NH57SD serum expression from NSCLC patients and to determine its diagnostic usefulness.MethodsBy using stem‐loop quantitative real‐time PCR, we were able to detect various tRF‐31‐79MP9P9NH57SD expressions in 96 NSCLC serum samples, 96 healthy controls, and 20 pairs of NSCLC serum samples pre‐ and post‐surgery (qRT‐PCR). After that, we analyzed its diagnostic effectiveness using the receiver operating characteristic (ROC) curve.ResultsSerum tRF‐31‐79MP9P9NH57SD expression was higher in NSCLC patients, and levels of tRF‐31‐79MP9P9NH57SD were linked to the clinical stage (p = 0.002) and the malignancy of lymph node (p = 0.012). In addition, after the procedure, the serum tRF‐31‐79MP9P9NH57SD expression in NSCLC patients dropped. With 48.96 percent sensitivity and 90.62 percent specificity, the area under ROC curve (AUC) was 0.733.Conclusionserum tRF‐31‐79MP9P9NH57SD possibly is a new and groundbreaking biomarker for the NSCLC.