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2011 IEEE International Conference on Bioinformatics and Biomedicine Workshops (BIBMW)最新文献

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A novel framework for chimeric transcript detection based on accurate gene fusion model 基于精确基因融合模型的嵌合转录物检测新框架
F. Abate, A. Acquaviva, E. Ficarra, Giulia Paciello, E. Macii, A. Ferrarini, M. Delledonne, S. Soverini, G. Martinelli
Next generation sequencing plays a key role in the detection of structural variations. Chimeric transcripts are relevant examples of such variations, as they are involved in several diseases. In this work, we propose an effective methodology for the detection of fused transcripts in RNA-Seq paired-end data. The proposed methodology is based on an accurate fusion model implemented by a set of filters reducing the impact of artifacts. Moreover, the methodology accounts for transcripts consistently expressing in the sample under study even if they are not annotated. The effectiveness of the proposed solution has been experimentally validated on of Chronic Myelogenous Leukemia (CML) samples, providing both the genes involved in the fusion and the exact chimeric sequence.
下一代测序在结构变异检测中起着关键作用。嵌合转录物是这种变异的相关例子,因为它们与几种疾病有关。在这项工作中,我们提出了一种有效的方法来检测RNA-Seq配对端数据中的融合转录本。该方法基于精确的融合模型,通过一组过滤器实现,减少了伪影的影响。此外,该方法解释了在研究样本中一致表达的转录本,即使它们没有注释。该方案的有效性已在慢性髓性白血病(CML)样本上得到实验验证,提供了参与融合的基因和确切的嵌合序列。
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引用次数: 0
Integration of statistical models and visualization tools to characterize microRNA networks influencing cancer 整合统计模型和可视化工具表征影响癌症的microRNA网络
James Karnia, K. Delfino, M. Villamil, G. Caetano-Anollés, S. Rodriguez-Zas
Gene expression microarray experiments can be used to infer the topology of co-expression networks between genes in the immune-system pathways. Immune-system pathways are highly dimensional, including numerous gene nodes and edges connecting nodes. A bioinformatics strategy to infer and confirm gene co-expression networks was developed and applied to two major immune-system pathways. In total, 182 and 356 co-expression profiles between pairs of genes were identified in the NOD-like and B-cell receptor signaling pathways. The distinct distribution of the sign of the relationships among the pathways offered additional insights into the network.
基因表达微阵列实验可用于推断免疫系统通路中基因间共表达网络的拓扑结构。免疫系统通路是高度多维的,包括许多基因节点和连接节点的边缘。一种推断和确认基因共表达网络的生物信息学策略被开发并应用于两种主要的免疫系统途径。在nod样细胞和b细胞受体信号通路中,共鉴定出182和356个基因对之间的共表达谱。通路之间关系符号的独特分布提供了对网络的额外见解。
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引用次数: 0
GLASS: Genomic Literature Area Sequence Search GLASS:基因组文献区域序列搜索
Siddharth Pandey, M. Kane, John A. Springer
Scientists studying organisms face challenges when identifying related literature that pertains to the organisms under investigation. This is due to the presence of vast biomedical literature and the limitations of existing automated mechanisms to search through the published literature for the pertinent information. This study proposes the use of the Genomic Literature Area Sequence Search (GLASS) tool to search through the existing literature for relevant information and thus to facilitate information reuse as well as to provide quicker access to the information that otherwise often requires manual, time intensive intervention. By indexing the literature content and then distributing the indexed data across a cluster to provide a faster and robust search process, the application searches through the literature for DNA sequences requested by the user.
研究生物的科学家在识别与所研究的生物相关的文献时面临着挑战。这是由于大量生物医学文献的存在和现有的自动化机制的局限性,无法通过已发表的文献搜索相关信息。本研究建议使用基因组文献区域序列搜索(Genomic Literature Area Sequence Search, GLASS)工具在现有文献中搜索相关信息,从而促进信息重用,并提供更快的信息访问,否则通常需要人工、耗时的干预。通过对文献内容建立索引,然后将索引后的数据分布到集群中,以提供更快、更健壮的搜索过程,应用程序在文献中搜索用户请求的DNA序列。
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引用次数: 2
Genetic information for chronic disease prediction 慢性病预测的遗传信息
M. Grasso, Darshana Dalvi, Soma Das, Matthew Gately, Vlad Korolev, Y. Yesha
Type 2 diabetes and coronary artery disease are commonly occurring polygenic diseases, which are responsible for significant morbidity and mortality. The identification of people at risk for these conditions has historically been based on clinical factors alone. Advances in genetics have raised the hope that genetic testing may aid in disease prediction, treatment, and prevention. Although intuitive, the addition of genetic information to increase the accuracy of disease prediction remains an unproven hypothesis. We present an overview of genetic issues involved in polygenic diseases, and summarize ongoing efforts to use this information for disease prediction.
2型糖尿病和冠状动脉疾病是常见的多基因疾病,发病率和死亡率都很高。历史上,对这些疾病高危人群的识别仅基于临床因素。遗传学的进步带来了基因检测有助于疾病预测、治疗和预防的希望。虽然是直观的,但增加遗传信息以提高疾病预测的准确性仍然是一个未经证实的假设。我们概述了涉及多基因疾病的遗传问题,并总结了利用这些信息进行疾病预测的持续努力。
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引用次数: 1
Study on infrared radiation characteristic of heat-sensitive acupoints in bronchial asthma 支气管哮喘热敏感穴位红外辐射特征的研究
N. Tian, Bing Xi, Bi-Ying Su, Ri-Xin Chen
Objective : Study the infrared radiation characteristic of heat-sensitive acupoints in bronchial asthma. Method: Apply Thermal Texture Mapping System (TSI-21) to study the infrared radiation characteristic of heat-sensitive acupoints on the body surfaces of 54 bronchial asthma patients. Set control areas on the back of the patient and 4 separate control points, each in the width of 3cm respectively at the left, right, upper and lower section of the acupoint. Apply two observation indicators, respectively the absolute infrared radiant intensity (temperature) and relative infrared radiant intensity (differential value between the radiant intensity of the control point and the overall radiant intensity), and compare the value of infrared radiant intensity measured at heat-sensitive acupoints and control points/areas. Result: The average temperature of heat-sensitive acupoints in 54 bronchial asthma patients measured at 31.15°C, which indicated that the differential value between the radiant intensity of heat-sensitive acupoints and the overall radiant intensity was significant (P<0.05); Mean whilst, the difference between the temperature of heat-sensitive acupoint and control point was not significant (P> 0.05); however, the difference between the average temperature of heat-sensitive acupoints and the average temperature of the control points on the back of the patient was significant (P<0.05). Conclusion : Heat-sensitive acupoints are featured with high-level infrared radiant intensity; therefore, a certain area of enhanced infrared radiant intensity can be formed around the heat-sensitive acupoint.
目的:研究支气管哮喘热敏感穴位的红外辐射特征。方法:应用热纹理映射系统(TSI-21)对54例支气管哮喘患者体表热敏穴位的红外辐射特征进行研究。在患者背部设置控制区,在穴位的左、右、上、下分别设置4个独立控制点,每个控制点宽度为3cm。应用绝对红外辐射强度(温度)和相对红外辐射强度(控制点辐射强度与整体辐射强度的差值)两个观察指标,比较热敏穴位和控制点/区域测量的红外辐射强度值。结果:54例支气管哮喘患者热敏穴平均温度为31.15℃,热敏穴辐射强度与整体辐射强度差值有统计学意义(P < 0.05);而热敏感穴的平均温度与患者背部控制点的平均温度差异有统计学意义(P<0.05)。结论:热敏感穴位具有高红外辐射强度的特点;因此,可以在热敏穴位周围形成一定区域的红外辐射强度增强。
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引用次数: 0
Stochastic Models for Studying the Degradation of mRNA Molecules 研究mRNA分子降解的随机模型
Tianhai Tian
Message RNA (mRNA) is the template for protein synthesis. It carries information from DNA in the nucleus to the ribosome sites of protein synthesis in the cell. The turnover process of mRNA is a chemical event with multiple small step reactions, and the degradation of mRNA molecules is an important step in gene expression. A number of mathematical models have been proposed to study the dynamics of mRNA turnover, ranging from a one-step first order reaction model to the linear multi component models. Although the linear multi component models provide detailed dynamics of mRNA degradation, the simple first-order reaction model has been widely used in mathematical modeling of genetic regulatory networks. To illustrate the difference between these models, we first considered a stochastic model based on the multi component model. Then a simpler linear chain stochastic model was proposed to approximate the linear multi component model. We also discussed the delayed one-step reaction models with different types of time delay, including the constant delay, exponentially distributed delay and Erlang distributed delay. The comparison study suggested that the one-step reaction models failed to realize the dynamics of mRNA turnover accurately. Therefore more sophisticated one-step reaction models are needed to study the dynamics of mRNA degradation.
信使RNA (mRNA)是蛋白质合成的模板。它将信息从细胞核中的DNA传递到细胞中合成蛋白质的核糖体位点。mRNA的周转过程是一个包含多个小步骤反应的化学事件,mRNA分子的降解是基因表达的重要步骤。已经提出了许多数学模型来研究mRNA转换的动力学,从一步一阶反应模型到线性多组分模型。虽然线性多组分模型提供了mRNA降解的详细动力学,但简单的一阶反应模型已广泛用于遗传调控网络的数学建模。为了说明这些模型之间的区别,我们首先考虑了一个基于多分量模型的随机模型。然后提出了一种更简单的线性链随机模型来近似线性多分量模型。讨论了不同时滞类型下的时滞一步反应模型,包括常时滞、指数分布时滞和Erlang分布时滞。对比研究表明,一步反应模型不能准确地反映mRNA转换的动力学过程。因此,需要更复杂的一步反应模型来研究mRNA降解的动力学。
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引用次数: 0
Histological Image Feature Mining Reveals Emergent Diagnostic Properties for Renal Cancer 组织学图像特征挖掘揭示肾癌的紧急诊断特性
S. Kothari, J. Phan, A. Young, May D. Wang
Computer-aided histological image classification systems are important for making objective and timely cancer diagnostic decisions. These systems use combinations of image features that quantify a variety of image properties. Because researchers tend to validate their diagnostic systems on specific cancer endpoints, it is difficult to predict which image features will perform well given a new cancer endpoint. In this paper, we define a comprehensive set of common image features (consisting of 12 distinct feature subsets) that quantify a variety of image properties. We use a data-mining approach to determine which feature subsets and image properties emerge as part of an "optimal" diagnostic model when applied to specific cancer endpoints. Our goal is to assess the performance of such comprehensive image feature sets for application to a wide variety of diagnostic problems. We perform this study on 12 endpoints including 6 renal tumor subtype endpoints and 6 renal cancer grade endpoints.
计算机辅助组织图像分类系统对于做出客观、及时的癌症诊断决策非常重要。这些系统使用图像特征的组合来量化各种图像属性。由于研究人员倾向于在特定的癌症终点上验证他们的诊断系统,因此很难预测在新的癌症终点下哪些图像特征会表现良好。在本文中,我们定义了一组全面的通用图像特征(由12个不同的特征子集组成),这些特征子集量化了各种图像属性。我们使用数据挖掘方法来确定哪些特征子集和图像属性在应用于特定癌症终点时作为“最佳”诊断模型的一部分出现。我们的目标是评估这些综合图像特征集的性能,以应用于各种各样的诊断问题。我们在12个终点进行了这项研究,包括6个肾肿瘤亚型终点和6个肾癌分级终点。
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引用次数: 23
Ab initio protein structure prediction based on memetic algorithm and 3D FCC lattice model 基于模因算法和三维FCC晶格模型的从头算蛋白质结构预测
Jyh-Jong Tsay, S. Su
The protein is the main working machine of the cells. It has various catalytic and physiological functions. Its function comes from the conformation of the protein and catalytic activity. The conformation is formed by the permutations of amino-acids, and the permutation of the amino-acids, accomplishes the multiplicity of the protein. A great challenge in computational molecular biology is to predicate the protein native structure from its primary amino acid sequence. It is not difficult to obtain protein sequences. However to determine protein structure is not an easy task by current technologies. There is a large gap between them. Therefore, more research is needed to fill the gap. This study proposed a memetic algorithm for protein structure prediction in FCC lattice HP model. The experiment result shows that the MA method proposed in this study can retain the merits of the Genetic algorithm which is good at solve combinatorial problem. It can also increase the efficacy effectively.
蛋白质是细胞的主要工作机器。它具有多种催化和生理功能。它的功能来自于蛋白质的构象和催化活性。构象是由氨基酸的排列形成的,氨基酸的排列完成了蛋白质的多样性。从蛋白质的一级氨基酸序列判断蛋白质的天然结构是计算分子生物学的一大挑战。获得蛋白质序列并不难。然而,以目前的技术来确定蛋白质的结构并不是一件容易的事。他们之间有很大的差距。因此,需要更多的研究来填补这一空白。本文提出了一种用于FCC晶格HP模型中蛋白质结构预测的模因算法。实验结果表明,本文提出的遗传算法保留了遗传算法在解决组合问题方面的优点。还能有效提高疗效。
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引用次数: 4
Application of data mining technology in excavating prevention and treatment experience of infectious diseases from famous herbalist doctors 数据挖掘技术在知名中医传染病防治经验挖掘中的应用
Yi Luo, Ji-qiang Li, D. Zheng, Zhan-Peng Tan, Hong Zhou, Q. Deng, Yuntao Liu, A. Ou, Jian Yin
This study is to explore effect and significance of data mining technology (DMT) used in excavating prevention and treatment experience of infectious diseases from famous herbalist doctors (FHDs). DMT methods such as cluster analysis and association rules was applied to the study on FHDs literature on preventing and treating influenza, dysentery, tuberculosis, viral hepatitis and other infectious diseases in order to excavate the inner rules and refine the regular understanding. The result shows that cluster analysis is helpful to summarize the common understanding of experience including concept of syndrome differentiation, regulation of diagnosis and treatment, prescription characteristic, which based on FHDs' prevention and treatment of influenza (including A H1N1), viral hepatitis and other infectious diseases. Association rules greatly contributed to the judgment of relationship between etiology, syndrome, symptoms and herbal prescription of infectious diseases. In conclusion, DMT provides technical support for concise and inheritance of academic thought which originates from FHDs. DMT is of high application value in research of experience of FHDs and relevant literature, and is worth further discussion.
本研究旨在探讨数据挖掘技术(data mining technology, DMT)在挖掘名医传染病防治经验中的作用和意义。运用聚类分析、关联规则等DMT方法,对fhd防治流感、痢疾、肺结核、病毒性肝炎等传染病的文献进行研究,挖掘其中的内在规律,提炼规律认识。结果表明,聚类分析有助于总结fhd防治流感(包括甲型H1N1)、病毒性肝炎等传染病的辨证观念、诊疗规律、方剂特点等方面的共同认识经验。关联规则对判断传染病的病因、证候、症状与方剂之间的关系有重要作用。总之,DMT为精练和传承源自fhd的学术思想提供了技术支持。DMT在fhd的经验研究和相关文献研究中具有很高的应用价值,值得进一步探讨。
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引用次数: 2
Research on the clinical classification of Xi clan diabetic foot using fuzzy C-means clustering method 应用模糊c均值聚类法研究西族糖尿病足的临床分型
Cao Yemin, Zhang Haowei, Xu Hongtao, Xi Jiuyi, Zhu Xunsheng, Gu Zheng
Xi Jiuyi, born in 1923, is a famous expert on peripheral vascular diseases. He has been engaged in scientific research and clinical teaching over 60 years and cured of the countless patients. He has decided the five clinical classifications of diabetic foot (DF) and got outstanding curative effects. Following the medical practice of Professor Xi and using engineering technology, we collect symptoms, signs, tongue and pulse condition of 103 cases. Then we use fuzzy C-means clustering method by calculation iterative with the information of 103 cases. The result shows the average accuracy rate is 86.41% similarity with Professor Xi's results of clinical classification. With the expansion of the samples, we believe a higher accuracy rate can be reached. We can draw a conclusion that fuzzy C-means clustering method can reflect the Professor Xi's idea of DF clinic classification, thus inherit the academic ideas of Xi effectively.
席九益,1923年生,著名外周血管疾病专家。从事科研和临床教学工作60余年,治愈患者无数。确定了糖尿病足的五种临床分型,取得了显著的疗效。然后利用103个案例的信息,通过计算迭代,采用模糊c均值聚类方法。随着样本的扩大,我们相信可以达到更高的准确率。
{"title":"Research on the clinical classification of Xi clan diabetic foot using fuzzy C-means clustering method","authors":"Cao Yemin, Zhang Haowei, Xu Hongtao, Xi Jiuyi, Zhu Xunsheng, Gu Zheng","doi":"10.1109/BIBMW.2011.6112490","DOIUrl":"https://doi.org/10.1109/BIBMW.2011.6112490","url":null,"abstract":"Xi Jiuyi, born in 1923, is a famous expert on peripheral vascular diseases. He has been engaged in scientific research and clinical teaching over 60 years and cured of the countless patients. He has decided the five clinical classifications of diabetic foot (DF) and got outstanding curative effects. Following the medical practice of Professor Xi and using engineering technology, we collect symptoms, signs, tongue and pulse condition of 103 cases. Then we use fuzzy C-means clustering method by calculation iterative with the information of 103 cases. The result shows the average accuracy rate is 86.41% similarity with Professor Xi's results of clinical classification. With the expansion of the samples, we believe a higher accuracy rate can be reached. We can draw a conclusion that fuzzy C-means clustering method can reflect the Professor Xi's idea of DF clinic classification, thus inherit the academic ideas of Xi effectively.","PeriodicalId":6345,"journal":{"name":"2011 IEEE International Conference on Bioinformatics and Biomedicine Workshops (BIBMW)","volume":"162 ","pages":"881-885"},"PeriodicalIF":0.0,"publicationDate":"2011-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91454893","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
期刊
2011 IEEE International Conference on Bioinformatics and Biomedicine Workshops (BIBMW)
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