简介:AbstractBackground:Recent studies have demonstrated that microRNAs (miRNAs) in the blood circulation can serve as promising diagnostic markers for cancers. This four-stage study aimed at finding serum miRNAs as potential biomarkers for lung adenocarcinoma (LA) diagnosis.Methods:The study was carried out between 2016 and 2017. The Exiqon miRNA qPCR panel (3 LA vs. 1 normal control [NC] pooled serum samples) was used for initial screening to acquire miRNA profiles. Thirty-five dysregulated miRNAs were further evaluated in the training (24 LA vs. 24 NCs) and testing stages (110 LA vs. 110 NCs) using quantitative real-time polymerase chain reaction assays.Results:Four serum miRNAs (miR-133a-3p, miR-584-5p, miR-10b-5p, and miR-221-3p) were significantly overexpressed in LA patients compared with NCs. The diagnostic value of the four-miRNA panel was validated by an external cohort (36 LA vs. 36 NCs). The areas under the receiver operating characteristic curve of the four-miRNA panel in the training, testing, and external validation stages were 0.734, 0.803, and 0.894 respectively. Meanwhile, the expression level of miR-221-3p was much higher in LA tumor samples than that in the adjacent normal tissues (19 LA vs. 19 NCs). The expression level of miR-10b-5p was also elevated in the serum-derived exosomes samples (18 LA vs. 18 NCs). The expression of miR-133a-3p, miR-584-5p, and miR-10b-5p was significantly elevated in LA patients with epidermal growth factor receptor mutation compared with NCs.Conclusion:The study established a four-miRNA signature in serum that could improve the diagnostic capability of LA.
简介:激活消费有人在去年就曾预言:"从1999年二季度起,市场应达到中热,否则这一年的忙活就不叫投资,而叫打水漂。"而今年的市场情形却着实让人着急。贷款买车、买房、买家电、做装修,信贷消费政策一个接着一个,但老百姓的冷静和观望却让商家、银行和政府管理层沉不住气。老百姓的冷静也容易理解。有媒体报道说,银行80%的存款属于20%的个人。至于拥有80%存款的20%部分,或许车子、房子也有了,更遑论其他耐用消费品了;而人数占80%的那大多数,更多地或者还得考虑将来的生计。学者汪丁丁解释道:"老百姓或许把储蓄当成了保险。"百姓们正在为未来的不确定而储蓄。在这样一个转型期,住房、医疗、教育、就业、生老病死...
简介:摘要目的探讨分析剖宫产术中出血的原因及有效的临床处理措施。方法回顾性分析2009年1月~2012年1月我院产科剖宫产术中出血99例产妇出血原因及临床处理措施。结果本组99例剖宫产术中出血患者中,宫缩乏力53例、占53.5%;胎盘因素24例、占24.2%;切口撕裂10例、占10.1%;子宫肌瘤9例、占9.1%;凝血功能障碍3例、占3.1%;术中出血量在1000~3500ml。所有患者常规止血成功81例,止血成功率为81.8%;其中宫腔填塞纱布止血10例、子宫动脉上行支结扎止血5例、2例因止血后仍有阴道持续出血行子宫全切术;无1例产妇死亡。结论剖宫产术中大出血的原因很多,充分的术前准备可预防和减少剖宫产术中大出血,术中针对病因迅速采取有效的止血措施,可降低产科子宫切除率,提高产妇的生活质量。