共查询到18条相似文献,搜索用时 31 毫秒
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组合药物在复杂疾病的治疗中形成了多靶点,多环节上的密切联系,对疾病的治疗效果也可达到单种药物治疗意想不到的效果。组合药物中各单药功能各异但联用后治疗效果更佳,说明所对应疾病之间可能存在某种关系。通过研究疾病间关联关系,可能会发现治疗某种疾病的新靶标,从而在新药的研发中取得新的进展。本文以DCDB(组合药物数据库)中的药物组合为数据源构建组合药物网络,并通过网络聚类算法得到了33个独立且内部联系紧密的药物模块。其中7组药物模块所包含的组合药物用于治疗两种或两种以上疾病,说明这些疾病之间存在一定的关联关系。对这些关系进行论证,结果表明,组合药物网络是发现疾病关联关系的一种有效手段。 相似文献
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目的 应用诊断相关分组项目中的病例组合指标(CMI)分析医生对某一疾病患者的治疗方式及费用差异。方法 选取某三级甲等医院胸外科肺恶性肿瘤疾病患者住院病例的住院首页信息(ICD-C34),提取不同患者疾病诊断的CMI值。采用非参数检验、Logistic分析病种的住院费用影响因素,包括医生,CMI等,比较参与治疗该病的四位医生之间差异。结果 影响患者住院费用的主要因素是不同医生、CMI、住院日和患者年龄;不同医生诊治的患者的 CMI无统计学差异,以住院费用为因变量,医生和CMI为自变量的Logistic分析结果表明CMI对住院费用具有影响。结论 CMI有可能作为一项重要指标用于评价医生对某一疾病治疗的合理性和工作质量。 相似文献
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目的:生物标志物是标识系统、器官、组织等改变或可能发生改变的生化指标,具有非常广泛的临床应用。本文希望从高通量数据出发,提出一种新的研究复杂疾病标志物的方法。方法:以\"组学\"数据为研究对象,利用乒乓算法构建lnc RNA-mRNA交互网络,通过随机游走算法计算选出复杂疾病的生物标志物,并将其与t检验结果比较。结果:将本文方法运用于食管癌标志物的识别,得出与食管癌发生和发展过程相关的14个lnc RNA(CCAT1、MEG3、Snhg1、MALAT1、HOTAIR、UCA1、PVT1、CASC9、LOC100130476、TUG1、BC200、POU6F2-AS2、TP73-AS1和ZEB1-AS1)和12个mRNA(SPARC、CMTM7、Sph K1、NANOG、LOXL2、HMGCS2、FZD7、PTOV1、CADM1、CTHRC1、MGMT和RECK)。对比显示,识别出t检验未识别出的4个lnc RNA(BC200、POU6F2-AS2、TP73-AS1和ZEB1-AS1)和3个mRNA(CADM1、Sph K1和RECK)。结论:该方法能够更有效的预测复杂疾病相关的标志物。 相似文献
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复杂疾病关联研究中的若干问题 总被引:6,自引:0,他引:6
关联研究广泛应用于阐述心血管疾病、2型糖尿病、原发性高血压和肥胖等人类复杂疾病的遗传学基础。文中就关联研究中混杂的识别与控制、候选基因的选择、中间表型的应用、单体型分析方法的应用,以及结果的判定等问题进行了讨论。人群分层是关联研究混杂的主要来源之一。选择患者亲属做对照、基因组对照和选择遗传背景较为一致的隔离人群都可以减少混杂。候选基因的选择可以基于与疾病间的生物学联系或是该基因与疾病某已知相关基因的同源性。适当的应用中间表型和单体型分析方法可以增加关联研究有意义发现的机会。本文认为,优化研究设计、足够的样本含量、正确选择对照,结合先进的数据分析方法,关联研究必将为困扰人类的常见疾病的易感性研究发挥更大的作用。 相似文献
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结构域重组与序列复制、变异一起,推动了生命的进化。文章应用复杂网络理论比较分析了不同复杂程度的真核生物体中蛋白质结构域组的进化规律。结果表明大量的结构域(约34%)被基因组共享,而结构域的相邻二元组合却具有很大的物种特异性。结构域组合网络呈现无尺度特性,其幂率分布及平均连接度在一定程度上反映了物种的复杂性;网络的聚集系数远高于相同度分布的随机网络(P=0.0096),聚集系数与度呈现幂率分布,这说明网络服从模块化层次式组织规律。最后以人类基因组为例,初步探索了网络模块与功能的关系,发现网络模块中的结构域具有不同程度的功能一致性。 相似文献
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Shuyu Zheng Wenyu Wang Jehad Aldahdooh Alina Malyutina Tolou Shadbahr Ziaurrehman Tanoli Alberto Pessia Jing Tang 《基因组蛋白质组与生物信息学报(英文版)》2022,20(3):587-596
Combinatorial therapies have been recently proposed to improve the efficacy of anticancer treatment. The Synergy Finder R package is a software used to analyze pre-clinical drug combination datasets. Here, we report the major updates to the Synergy Finder R package for improved interpretation and annotation of drug combination screening results. Unlike the existing implementations, the updated Synergy Finder R package includes five main innovations. 1) We extend the mathematical models to higher... 相似文献
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Bing He Cheng Lu Guang Zheng Xiaojuan He Maolin Wang Gao Chen Ge Zhang Aiping Lu 《Journal of cellular and molecular medicine》2016,20(12):2231-2240
The biological redundancies in molecular networks of complex diseases limit the efficacy of many single drug therapies. Combination therapeutics, as a common therapeutic method, involve pharmacological intervention using several drugs that interact with multiple targets in the molecular networks of diseases and may achieve better efficacy and/or less toxicity than monotherapy in practice. The development of combination therapeutics is complicated by several critical issues, including identifying multiple targets, targeting strategies and the drug combination. This review summarizes the current achievements in combination therapeutics, with a particular emphasis on the efforts to develop combination therapeutics for complex diseases. 相似文献
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With advances in high-throughput sequencing technologies, quantitative genetics approaches have provided insights into genetic basis of many complex diseases. Emerging in-depth multi-omics profiling technologies have created exciting opportunities for systematically investigating intricate interaction networks with different layers of biological molecules underlying disease etiology. Herein, we summarized two main categories of biological networks: evidence-based and statistically inferred. These different types of molecular networks complement each other at both bulk and single-cell levels. We also review three main strategies to incorporate quantitative genetics results with multi-omics data by network analysis: (a) network propagation, (b) functional module-based methods, (c) comparative/dynamic networks. These strategies not only aid in elucidating molecular mechanisms of complex diseases but can guide the search for therapeutic targets. 相似文献
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The genetic basis of complex diseases is expected to be highly heterogeneous, with complex interactions among multiple disease loci and environment factors. Due to the multi-dimensional property of interactions among large number of genetic loci, efficient statistical approach has not been well developed to handle the high-order epistatic complexity. In this article, we introduce a new approach for testing genetic epistasis in multiple loci using an entropy-based statistic for a case-only design. The entropy-based statistic asymptotically follows a χ2 distribution. Computer simulations show that the entropy-based approach has better control of type I error and higher power compared to the standard χ2 test. Motivated by a schizophrenia data set, we propose a method for measuring and testing the relative entropy of a clinical phenotype, through which one can test the contribution or interaction of multiple disease loci to a clinical phenotype. A sequential forward selection procedure is proposed to construct a genetic interaction network which is illustrated through a tree-based diagram. The network information clearly shows the relative importance of a set of genetic loci on a clinical phenotype. To show the utility of the new entropy-based approach, it is applied to analyze two real data sets, a schizophrenia data set and a published malaria data set. Our approach provides a fast and testable framework for genetic epistasis study in a case-only design. 相似文献
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目的:评价腹腔镜在附件疾病治疗中的价值及安全性。方法:回顾性分析325例附件良性疾病腹腔镜手术治疗情况。随机选取妇科附件良性肿瘤、异位妊娠、输卵管粘连及伞端不通、卵巢破裂、巧克力囊肿,卵巢冠囊肿等病例;采用腹腔镜手术治疗。术式根据病情不同,采取卵巢(冠)囊肿剥除术、附件切除术、输卵管切除术及造口术。结果:腹腔镜手术占同期手术42.54%,手术成功率100%,发生并发症5例(1.54%)。结论:腹腔镜微创手术,副作用少,适应证掌握得当,妇科大部分附件手术可在腹腔镜下完成。 相似文献
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Zhongyang Wang Junchang Xin Zhiqiong Wang Yudong Yao Yue Zhao Wei Qian 《Cognitive neurodynamics》2021,15(3):389
In recent years, the number of patients with neurodegenerative diseases (i.e., Alzheimer’s disease, Parkinson’s disease, mild cognitive impairment) and mental disorders (i.e., depression, anxiety and schizophrenia) have increased dramatically. Researchers have found that complex network analysis can reveal the topology of brain functional networks, such as small-world, scale-free, etc. In the study of brain diseases, it has been found that these topologies have undergoed abnormal changes in different degrees. Therefore, the research of brain functional networks can not only provide a new perspective for understanding the pathological mechanism of neurological and psychiatric diseases, but also provide assistance for the early diagnosis. Focusing on the study of human brain functional networks, this paper reviews the research results in recent years. First, this paper introduces the background of the study of brain functional networks under complex network theory and the important role of topological properties in the study of brain diseases. Second, the paper describes how to construct a brain functional network using neural image data. Third, the common methods of functional network analysis, including network structure analysis and disease classification, are introduced. Fourth, the role of brain functional networks in pathological study, analysis and diagnosis of brain functional diseases is studied. Finally, the paper summarizes the existing studies of brain functional networks and points out the problems and future research directions. 相似文献
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Tian Zhu Bin Wu Bai Wang Chuanxi Zhu 《Journal of biomolecular structure & dynamics》2013,31(5):573-579
Abstract Complex network analysis has received increasing interest in recent years, which provides a remarkable tool to describe complex systems of interacting entities, particular for biological systems. In this paper, we propose a methodology for identifying the significant nodes of the networks, including core nodes, bridge nodes and high-influential nodes, based on the idea of community and two new ranking measures, InterRank and IntraRank. The results show the significant nodes form a small number in biological networks, and uncover the relative small number of which has advantage for reducing the dimensions of the network and possibly help to define new biological targets. 相似文献
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Interleukin-13 (IL-13) was previously thought to be a redundant presence of IL-4, but in recent years its role in immunity, inflammation, fibrosis, and allergic diseases has become increasingly prominent. IL-13 can regulate several subtypes of T helper (Th) cells and affect their transformation, including Th1, Th2, T17, etc., thus it may play an important role in immune system. Previous studies have revealed that IL-13 is implicated in the pathogenesis of autoimmune diseases, such as systemic lupus erythematosus (SLE), rheumatoid arthritis (RA), systemic sclerosis (SSc), ulcerative colitis (UC), type 1 diabetes (T1D), sjogren's syndrome (SS), etc. In this review, we will briefly discuss the biological features of IL-13 and summarize recent advances in the role of IL-13 in the development and pathogenesis of autoimmune diseases. This information may provide new perspectives and suggestions for the selection of therapeutic targets for autoimmune diseases. 相似文献