Genomic and Transcriptomic Landscape of Triple-Negative Breast Cancers: Subtypes and Treatment Strategies

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Post-traumatic stress disorder and its risk factors in bereaved Tibetan adolescents 3 years after the 2010 Yushu earthquake,a cross-sectional study in China

Objectives

This study examined the incidence of symptomatological post-traumatic stress disorder (PTSD) in bereaved Tibetan adolescents 3?years after the 2010 Yushu earthquake, then to identify possible and relational risk factors of PTSD by a cross-sectional study.

Evolving insights: how DNA repair pathways impact cancer evolution

Viewing cancer as a large, evolving population of heterogeneous cells is a common perspective. Because genomic instability is one of the fundamental features of cancer, this intrinsic tendency of genomic variation leads to striking intratumor heterogeneity and functions during the process of cancer formation, development, metastasis, and relapse. With the increased mutation rate and abundant diversity of the gene pool, this heterogeneity leads to cancer evolution, which is the major obstacle in the clinical treatment of cancer. Cells rely on the integrity of DNA repair machineries to maintain genomic stability, but these machineries often do not function properly in cancer cells. The deficiency of DNA repair could contribute to the generation of cancer genomic instability, and ultimately promote cancer evolution. With the rapid advance of new technologies, such as single-cell sequencing in recent years, we have the opportunity to better understand the specific processes and mechanisms of cancer evolution, and its relationship with DNA repair. Here, we review recent findings on how DNA repair affects cancer evolution, and discuss how these mechanisms provide the basis for critical clinical challenges and therapeutic applications.     

自然疗养因子的作用机制研究进展

自然疗养因子所涵盖的内容丰富,其生物学效应及形成复杂。现代疗养学在形成过程中相继提出自然疗养因子对机体作用的理论或假说。随着医学模式的转变和现代医学的发展,自然疗养因子作用机制研究从分子、细胞到组织器官,涉及机体物质代谢、神经系统、内分泌和免疫等功能的相互作用,形成整体的各个水平产生适应的作用机制;研究证实自然疗养因子的作用最根本的表现为改善机体内环境稳态和机体与外环境间的平衡,是靠机体的适应性反应机制实现的;其次与祖国医学“天人合一”整体观一脉相承。近年来,研究证实环境因素通过基因的重返表达对表观遗传产生影响,同时疗养因子参与机体的生物节律调控不断深入,机体对自然疗养因子的应答反应是受到多种因素的影响,包括机体状态、疗养因子的种类、性质、作用剂量、应用时间、季节及个体差异等。本文主要对自然疗养因子的作用机制及对机体的作用等方面进行总结。     

国产乳酸环丙沙星滴眼液质量分析

目的评价国产乳酸环丙沙星滴眼液的质量现状。方法采用现行法定标准检验结合探索性研究结果,对市场上3家企业生产的36批乳酸环丙沙星滴眼液的质量进行比较分析,通过对含量测定、有关物质及抑菌剂合理性等项目的考察,结合稳定性试验,分析不同企业产品的质量差异。结果法定标准检验36批乳酸环丙沙星滴眼液,合格率为100%;探索性研究显示,该品种现行标准多个安全性检查项目缺失、检验方法专属性差、标准不统一。结论国内乳酸环丙沙星滴眼液整体质量一般,现行质量标准有待提高。     

Intravesical oxybutynin therapy for patients with neurogenic detrusor overactivity: a systematic review and meta-analysis

International Urology and Nephrology - To evaluate the effectiveness and safety of intravesical oxybutynin therapy for patients with neurogenic detrusor overactivity. A systematic search in PubMed,...     

小剂量异维A酸联合2%超分子水杨酸治疗中重度痤疮疗效观察

目的:探讨口服小剂量异维A酸联合外用2%超分子水杨酸治疗中重度痤疮的临床疗效。方法:共选取74例中重度痤疮患者作为研究对象,口服小剂量异维A酸10mg,1次/d。治疗组:37例,联合外用2%新型超分子水杨酸治疗;对照组:37例,联合外用夫西地酸乳膏及阿达帕林凝胶治疗。对两组患者治疗前后的皮损数量变化及治疗效果进行对比分析。结果:经过8周的治疗,两组研究对象的总皮损数量较治疗前均显著减少(P<0.05),且治疗组与对照组比较,无明显差异(P>0.05)。针对不同类型的皮损,治疗组对粉刺的疗效比对照组更具优势,对丘疹与结节的疗效无明显差异。结论:治疗中重度痤疮,小剂量异维A酸联合外用2%超分子水杨酸临床疗效较好,副作用小,可作为痤疮治疗的新选择。