METHODS AND COMPOSITIONS FOR DIRECT CHEMICAL LYSIS
    7.
    发明申请
    METHODS AND COMPOSITIONS FOR DIRECT CHEMICAL LYSIS 审中-公开
    直接化学分析的方法和组合

    公开(公告)号:US20160194687A1

    公开(公告)日:2016-07-07

    申请号:US15067428

    申请日:2016-03-11

    摘要: A direct chemical lysis composition includes an assay compatible buffer composition and an assay compatible surfactant. When combined with a specimen storage composition, such compositions prevent undesired modifications to nucleic acid and proteins lysed from cells in the biological sample. Assays of samples from such compositions do not require expensive and time-consuming steps such as centrifugation and prolonged high temperature processing. The direct chemical lysis composition of the present invention permits direct nucleic acid extraction from the cells in the biological sample without the need to decant off the transport media or otherwise exchange the transport media with assay compatible buffers. There is no need to combine the sample with proteinase K or another enzyme to extract nucleic acids from the cells. A method for lysing cells to obtain target nucleic acid for assay and a kit for combining the direct chemical lysis composition with a sample are also contemplated.

    摘要翻译: 直接化学裂解组合物包括测定相容缓冲液组合物和测定相容性表面活性剂。 当与样品储存组合物组合时,这种组合物防止对生物样品中细胞裂解的核酸和蛋白质的不期望的修饰。 来自这些组合物的样品的测定不需要昂贵且耗时的步骤,例如离心和长时间的高温处理。 本发明的直接化学溶解组合物允许从生物样品中的细胞中直接进行核酸提取,而不需要从运输介质中滗出或以其它方式与测定相容的缓冲液交换传输介质。 不需要将样品与蛋白酶K或其他酶组合从细胞中提取核酸。 还考虑了用于裂解细胞以获得用于测定的靶核酸的方法和用于将直接化学裂解组合物与样品组合的试剂盒。

    ASSAY FOR JC VIRUS ANTIBODIES
    8.
    发明申请
    ASSAY FOR JC VIRUS ANTIBODIES 审中-公开
    测试JC病毒抗体

    公开(公告)号:US20160187337A1

    公开(公告)日:2016-06-30

    申请号:US15063777

    申请日:2016-03-08

    申请人: Biogen MA Inc.

    IPC分类号: G01N33/569

    摘要: The disclosure relates to methods and reagents for analyzing samples for the presence of JC virus antibodies. Disclosed is a method that includes obtaining a biological sample from a subject (e.g., plasma, serum, blood, urine, or cerebrospinal fluid), contacting the sample with highly purified viral-like particles HPVLPs) under conditions suitable for binding of a JCV antibody in the sample to an HPVLP, and detecting the level of JCV antibody binding in the sample to HPVLP In one embodiment, determining the level of anti-JCV antibodies in the subject sample provides a method of identifying PML risk in a subject.

    摘要翻译: 本公开涉及用于分析样品存在JC病毒抗体的方法和试剂。 公开了一种方法,其包括从适合于JCV抗体结合的条件下获得来自受试者(例如血浆,血清,血液,尿液或脑脊液)的生物样品,使样品与高度纯化的病毒样颗粒HPVLP接触) 在样品中检测HPVLP,并检测样品中JCV抗体与HPVLP结合的水平。在一个实施方案中,确定受试样品中抗JCV抗体的水平提供了在受试者中鉴定PML风险的方法。