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    • 4. 发明申请
    • Prenatal diagnosis using cell-free fetal DNA in amniotic fluid
    • 产前诊断在羊水中使用无细胞胎儿DNA
    • US20070111233A1
    • 2007-05-17
    • US11514096
    • 2006-08-31
    • Diana BianchiKirby JohnsonOlav Lapaire
    • Diana BianchiKirby JohnsonOlav Lapaire
    • C12Q1/68C07H21/04C12N1/08
    • C12N15/1006
    • The present invention relates to improved methods of prenatal diagnosis, screening, monitoring and/or testing. The inventive methods include the analysis by array-based hybridization of cell-free fetal DNA isolated from amniotic fluid. In addition to allowing the prenatal diagnosis of a variety of diseases and conditions, and the assessment of fetal characteristics such as fetal sex and chromosomal abnormalities, the new inventive methods provide substantially more information about the fetal genome in less time than it takes to perform a conventional metaphase karyotype analysis. In particular, the enhanced molecular karyotype methods provided by the present invention allow the detection of chromosomal aberrations that are not often detected prenatally such as microdeletions, microduplications and subtelomeric rearrangements. Also provided are improved methods of extraction of fetal DNA from amniotic fluid.
    • 本发明涉及产前诊断,筛选,监测和/或测试的改进方法。 本发明的方法包括通过从羊水分离的无细胞胎儿DNA的阵列杂交进行分析。 除了允许产前诊断各种疾病和状况,以及胎儿特性如胎儿性别和染色体异常的评估之外,新的发明方法提供了更多关于胎儿基因组的信息,其时间要比执行胎儿 常规中期核型分析。 特别地,由本发明提供的增强的分子核型方法允许检测不常检测到的染色体异常,例如微缺失,微复制和亚端粒重排。 还提供了从羊水中提取胎儿DNA的改进方法。
    • 8. 发明申请
    • Non-invasive method for isolation and detection of fetal DNA
    • 用于分离和检测胎儿DNA的非侵入性方法
    • US20070015171A1
    • 2007-01-18
    • US11283500
    • 2005-11-17
    • Diana Bianchi
    • Diana Bianchi
    • C12Q1/68C12P19/34
    • G01N33/80C12Q1/6804C12Q1/6806C12Q1/6841C12Q1/686C12Q1/6876C12Q1/6879C12Q1/6881C12Q1/6883C12Q2600/156G01N33/5002G01N33/56966G01N33/56972G01N33/56977G01N2015/1006C12Q2547/00C12Q2545/113C12Q2543/10C12Q2565/626C12Q2565/137
    • A method of detecting the presence or absence of the fetal DNA sequence of interest in fetal DNA derived from a sample of peripheral blood obtained from a pregnant woman is described. The method involves obtaining a sample peripheral blood from a pregnant woman, treating the sample of peripheral blood such that the fetal DNA present in the fetal nucleated cells is made available for detection and detecting the presence or absence of the fetal DNA sequence of interest in the available fetal DNA. The proportion of fetal nucleated cells present in the sample of peripheral blood can be increased forming a sample enriched in fetal nucleated cells prior to the detection step. The fetal DNA sequence of interest can be detected by treating the peripheral blood sample such that fetal DNA present in the sample is made available for hybridization with a DNA probe and subsequently contacting the available fetal DNA with a DNA probe hybridizable to fetal DNA of interest under hybridization conditions. The presence or absence of hybridization between the DNA probe and the fetal DNA of interest is detected as an indication of the presence or absence of the fetal DNA of interest.
    • 描述了从孕妇获得的外周血样品的胎儿DNA中检测胎儿DNA序列的存在或不存在的方法。 该方法包括获得来自孕妇的外周血样品,处理外周血样品,使胎儿有核细胞中存在的胎儿DNA可用于检测和检测胎儿DNA序列的存在或不存在。 可用胎儿DNA。 存在于外周血样品中的胎儿成核细胞的比例可以增加,在检测步骤之前形成富含胎儿成核细胞的样品。 感兴趣的胎儿DNA序列可以通过处理外周血液样品来检测,使样本中存在的胎儿DNA可用于与DNA探针杂交,随后使可用的胎儿DNA与可与感兴趣的胎儿DNA杂交的DNA探针接触 杂交条件。 检测DNA探针与感兴趣的胎儿DNA之间是否存在杂交,作为感兴趣的胎儿DNA存在或不存在的指示。