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    • 2. 发明授权
    • Computer systems and methods for identifying surrogate markers
    • 用于识别替代标记的计算机系统和方法
    • US07729864B2
    • 2010-06-01
    • US10558928
    • 2004-05-28
    • Eric E. Schadt
    • Eric E. Schadt
    • G06F19/00G06F15/00G11C17/00
    • G01N33/5023G01N33/5082G01N33/6803G01N2500/00
    • Methods, computer program products and systems for identifying cellular constituents in a secondary tissue that serve as surrogate markers for a target gene expressed in a primary tissue of a species are provided. A classifier is constructed using cellular constituent abundances of cellular constituents in a first plurality of cellular constituents measured in the secondary tissue in a population. This population comprises a first and second subgroup. The classifier is based on a second plurality of cellular constituents that comprises all or a portion of the first plurality of cellular constituents. Abundance levels of each cellular constituent in the second plurality of cellular constituents varies between the first and second subgroup. All or portion of the population is classified into a plurality of subtypes using the classifier. Then, one or more cellular constituents that can discriminate members of the population between a first subtype and a second subtype in the plurality of subtypes are identified.
    • 提供了用于鉴定作为在物种的初级组织中表达的靶基因的替代标记物的次级组织中的细胞成分的计算机程序产品和系统。 在群体中的次级组织中测量的第一多个细胞成分中,使用细胞组分的细胞组成丰度构建分类器。 该群体包括第一和第二子群。 分类器基于包含第一多个细胞成分的全部或一部分的第二多个细胞成分。 第二多个细胞组分中每个细胞成分的丰度水平在第一和第二亚组之间变化。 使用分类器将全部或部分群体分类为多个亚型。 然后,识别可以区分多个亚型中的第一亚型和第二亚型之间的群体成员的一个或多个细胞成分。
    • 3. 发明授权
    • Systems and methods for reconstructing gene networks in segregating populations
    • 在分离人群中重建基因网络的系统和方法
    • US08185367B2
    • 2012-05-22
    • US11587900
    • 2005-05-02
    • Jun ZhuEric E. Schadt
    • Jun ZhuEric E. Schadt
    • G06G7/58
    • G06F19/12G06F19/24
    • The reconstruction of genetic networks in mammalian systems is one of the primary goals in biological research, especially as such reconstructions relate to elucidating not only common, polygenic human disease, but living systems more generally. The present invention provides novel gene network reconstruction algorithms that utilize naturally occurring genetic variations as a source of perturbations to elucidate the networks. The algorithms incorporate relative transcript abundance and genotypic data from segregating populations by employing a generalized scoring function of maximum likelihood commonly used in Bayesian network reconstruction problems. The utility of these novel algorithms can be demonstrated via application to gene expression data from a segregating mouse population. The network derived from such data using the novel network reconstruction algorithm is able to capture causal associations between genes that result in increased predictive power, compared to more classically reconstructed networks derived from the same data.
    • 哺乳动物系统中遗传网络的重建是生物研究的主要目标之一,特别是因为这些重建不仅涉及常见的多基因人类疾病,而且更广泛地阐明生物系统。 本发明提供了利用天然存在的遗传变异作为扰动源来阐明网络的新型基因网络重建算法。 该算法通过采用在贝叶斯网络重建问题中常用的最大似然度的广义评分函数,将相对转录丰度和来自分离群体的基因型数据结合起来。 这些新算法的实用性可以通过应用于分离的小鼠群体的基因表达数据来证明。 与使用相同数据导出的更经典的重建网络相比,使用新颖的网络重构算法从这种数据得到的网络能够捕获导致增加的预测能力的基因之间的因果关联。
    • 7. 发明申请
    • Systems and Methods for Reconstructing Gene Networks in Segregating Populations
    • 用于重建人口分散基因网络的系统和方法
    • US20080294403A1
    • 2008-11-27
    • US11587900
    • 2005-05-02
    • Jun ZhuEric E. Schadt
    • Jun ZhuEric E. Schadt
    • G06G7/58
    • G06F19/12G06F19/24
    • The reconstruction of genetic networks in mammalian systems is one of the primary goals in biological research, especially as such reconstructions relate to elucidating not only common, polygenic human disease, but living systems more generally. The present invention provides novel gene network reconstruction algorithms that utilize naturally occurring genetic variations as a source of perturbations to elucidate the networks. The algorithms incorporate relative transcript abundance and genotypic data from segregating populations by employing a generalized scoring function of maximum likelihood commonly used in Bayesian network reconstruction problems. The utility of these novel algorithms can be demonstrated via application to gene expression data from a segregating mouse population. The network derived from such data using the novel network reconstruction algorithm is able to capture causal associations between genes that result in increased predictive power, compared to more classically reconstructed networks derived from the same data.
    • 哺乳动物系统中遗传网络的重建是生物研究的主要目标之一,特别是因为这些重建不仅涉及常见的多基因人类疾病,而且更广泛地阐明生物系统。 本发明提供了利用天然存在的遗传变异作为扰动源来阐明网络的新型基因网络重建算法。 该算法通过采用在贝叶斯网络重建问题中常用的最大似然度的广义评分函数,将相对转录丰度和来自分离群体的基因型数据结合起来。 这些新算法的实用性可以通过应用于分离的小鼠群体的基因表达数据来证明。 与使用相同数据导出的更经典的重建网络相比,使用新颖的网络重构算法从这种数据得到的网络能够捕获导致增加的预测能力的基因之间的因果关联。
    • 8. 发明授权
    • Computer systems and methods for identifying conserved cellular constituent clusters across datasets
    • 用于在数据集之间识别保守的细胞组分簇的计算机系统和方法
    • US08600718B1
    • 2013-12-03
    • US11985841
    • 2007-11-16
    • Serguei StepaniantsPek Y. LumRoy KuraisaEric E. Schadt
    • Serguei StepaniantsPek Y. LumRoy KuraisaEric E. Schadt
    • G06G7/58
    • G06F19/18G06F19/20
    • Systems and methods for determining a functional relationship between pairs of cellular constituents are provided. A plurality of datasets is received. Each dataset represents an experimental condition and comprises measurement data for a plurality of cellular constituents from each of a plurality of organisms. Each respective dataset is represented by correlation coefficients. Each correlation coefficient for a respective dataset in the plurality of datasets represents a correlation between abundance measurement data for a pair of cellular constituents across the dataset. The plurality of correlation coefficients that represents a first dataset in the plurality of datasets is clustered, thereby determining their order. This order is applied to each remaining dataset thereby forming a plurality of correlation matrices. When a conserved area in the plurality of matrices is identified, the functional relationship between the first cellular constituent and the second constituent is determined to be present.
    • 提供了用于确定细胞成分对之间功能关系的系统和方法。 接收多个数据集。 每个数据集表示实验条件,并且包括来自多个生物体中的每一个的多个细胞成分的测量数据。 每个相应的数据集由相关系数表示。 多个数据集中的相应数据集的每个相关系数表示跨数据集的一对细胞成分的丰度测量数据之间的相关性。 表示多个数据集中的第一数据集的多个相关系数被聚类,从而确定它们的顺序。 该顺序被应用于每个剩余的数据集,从而形成多个相关矩阵。 当识别多个矩阵中的保守区域时,确定出现第一细胞成分与第二成分之间的功能关系。