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    • 3. 发明申请
    • Biomarkers and assays for myocardial infarction
    • 生物标志物和心肌梗塞测定
    • US20070042426A1
    • 2007-02-22
    • US11343625
    • 2006-01-30
    • Urban KiernanDobrin NedelkovRandall Nelson
    • Urban KiernanDobrin NedelkovRandall Nelson
    • G01N33/53G01N33/50
    • G01N33/6893G01N2800/324
    • Presented herein are novel blood plasma/serum biomarkers related to cardiovascular disease. These newly identified biomarkers create the basis for multiple (single) assays using traditional bioassay technologies and when used in combination yield exceptional clinical sensitivity and specificity in the determination of myocardial infarction (MI). A multiplexed, mass spectrometric immunoassay (MSIA) able to simultaneously assay for the new/novel biomarkers as well other MI markers is also presented. Means and methods for evaluating data generated using multiple biomarkers in order to validate findings and further the use of the multiplexed MI assay in clinical, diagnostic and therapeuatic uses is also included.
    • 本文提出的是与心血管疾病相关的新型血浆/血清生物标志物。 这些新确定的生物标志物使用传统的生物测定技术为多次(单次)测定创造了基础,并且当组合使用时,在确定心肌梗死(MI)时产生特殊的临床敏感性和特异性。 还提供了能够同时测定新的/新的生物标志物以及其他MI标记物的多功能质谱免疫测定(MSIA)。 还包括用于评估使用多种生物标志物产生的数据的方法和方法,以验证发现和进一步使用多种MI测定在临床,诊断和治疗用途。
    • 6. 发明申请
    • Analysis of insulin-like growth factors from biological fluids by the use of affinity-based mass spectrometric methods
    • 通过使用基于亲和力的质谱法分析来自生物液体的胰岛素样生长因子
    • US20080064044A9
    • 2008-03-13
    • US10756100
    • 2004-01-12
    • Randall NelsonDobrin NedelkovUrban KiernanKemmons Tubbs
    • Randall NelsonDobrin NedelkovUrban KiernanKemmons Tubbs
    • G01N33/53C12M1/34
    • G01N33/54373G01N33/6851G01N2333/475
    • Presented herein are affinity-based mass spectrometric methods and assays for analysis of insulin like growth factors 1 and 2 (IGF-1 and IGF-2) present in complex biological mixtures and fluids. IGF-1 and IGF-2 were assayed from human plasma via BIA/MS, utilizing antibodies as ligands for affinity retrieval. Detection of both targeted and non-targeted IGFs in the mass spectra indicated possible protein complex retrieval by the individual antibodies. Plasma samples were investigated under variable denaturing conditions to confirm the detection of both free and bound IGFs. In a MSIA approach to IGF detection, pipettor tips containing porous solid supports covalently derivatized with anti-IGF antibodies were used to extract specific IGFs from plasma in preparation for mass spectrometry. Single or multiplex IGF-1 and IGF-2 assays were performed, resulting in detection of wild-type IGF-1 and 2, and a truncated IGF-2 variant, missing its N-terminal Alanine (also detected in the BIA/MS experiments). IGF-1 was quantified from several individuals via the use of internal reference standard species (rat IGF-1, doped into the samples prior to the MSIA analysis) and a working curve constructed from samples containing known concentrations of IGF-1.
    • 本文提出了基于亲和力的质谱法和用于分析复合生物混合物和流体中存在的胰岛素样生长因子1和2(IGF-1和IGF-2)的分析方法。 通过BIA / MS从人血浆中检测IGF-1和IGF-2,利用抗体作为亲和力检索的配体。 在质谱中检测靶向和非靶向IGFs表明可能的单个抗体的蛋白质复合物检索。 在可变变性条件下研究血浆样品,以确认游离和结合的IGF的检测。 在用于IGF检测的MSIA方法中,使用含有用抗IGF抗体共价衍生的多孔固体支持物的移液器尖端来提取来自血浆的特异性IGF,以进行质谱分析。 进行单次或多重IGF-1和IGF-2测定,导致野生型IGF-1和2以及截短的IGF-2变体的检测,缺失其N-末端丙氨酸(也在BIA / MS实验中检测到 )。 通过使用内部参考标准物质(大鼠IGF-1,在MSIA分析之前掺入样品中)从几个个体定量IGF-1和从含有已知浓度的IGF-1的样品构建的工作曲线。
    • 10. 发明申请
    • Analysis of insulin-like growth factors from biological fluids by the use of affinity-based mass spectrometric methods
    • 通过使用基于亲和力的质谱法分析来自生物液体的胰岛素样生长因子
    • US20050032116A1
    • 2005-02-10
    • US10756100
    • 2004-01-12
    • Randall NelsonDobrin NedelkovUrban KiernanKemmons Tubbs
    • Randall NelsonDobrin NedelkovUrban KiernanKemmons Tubbs
    • C12M1/34G01N33/53G01N33/543G01N33/68
    • G01N33/54373G01N33/6851G01N2333/475
    • Presented herein are affinity-based mass spectrometric methods and assays for analysis of insulin like growth factors 1 and 2 (IGF-1 and IGF-2) present in complex biological mixtures and fluids. IGF-1 and IGF-2 were assayed from human plasma via BIA/MS, utilizing antibodies as ligands for affinity retrieval. Detection of both targeted and non-targeted IGFs in the mass spectra indicated possible protein complex retrieval by the individual antibodies. Plasma samples were investigated under variable denaturing conditions to confirm the detection of both free and bound IGFs. In a MSIA approach to IGF detection, pipettor tips containing porous solid supports covalently derivatized with anti-IGF antibodies were used to extract specific IGFs from plasma in preparation for mass spectrometry. Single or multiplex IGF-1 and IGF-2 assays were performed, resulting in detection of wild-type IGF-1 and 2, and a truncated IGF-2 variant, missing its N-terminal Alanine (also detected in the BIA/MS experiments). IGF-1 was quantified from several individuals via the use of internal reference standard species (rat IGF-1, doped into the samples prior to the MSIA analysis) and a working curve constructed from samples containing known concentrations of IGF-1.
    • 本文提出了基于亲和力的质谱法和用于分析复合生物混合物和流体中存在的胰岛素样生长因子1和2(IGF-1和IGF-2)的分析方法。 通过BIA / MS从人血浆中检测IGF-1和IGF-2,利用抗体作为亲和力检索的配体。 在质谱中检测靶向和非靶向IGFs表明可能的单个抗体的蛋白质复合物检索。 在可变变性条件下研究血浆样品,以确认游离和结合的IGF的检测。 在用于IGF检测的MSIA方法中,使用含有用抗IGF抗体共价衍生的多孔固体支持物的移液器尖端来提取来自血浆的特异性IGF,以进行质谱分析。 进行单次或多重IGF-1和IGF-2测定,导致野生型IGF-1和2以及截短的IGF-2变体的检测,缺失其N-末端丙氨酸(也在BIA / MS实验中检测到 )。 通过使用内部参考标准物质(大鼠IGF-1,在MSIA分析之前掺入样品中)从几个个体定量IGF-1和从含有已知浓度的IGF-1的样品构建的工作曲线。