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    • 4. 发明授权
    • Method for analysis metabolite difference between biological samples
    • 分析生物样品代谢物差异的方法
    • US07678579B2
    • 2010-03-16
    • US11784292
    • 2007-04-05
    • Byung Hwa JungBong Chul Chung
    • Byung Hwa JungBong Chul Chung
    • G01N30/02
    • G01N33/6848G01N30/7206G06F19/24Y10T436/255
    • Disclosed is a method of extracting all metabolites existing in a biological sample to detect a comprehensive difference between metabolites of a control group and a test group, thereby verifying significance thereof. More particularly, the invention comprises a first step of analyzing a fraction extracted with a solid phase extraction method, a fraction obtained by extracting the remnant fraction with a liquid-liquid extraction method and fractions extracted with the liquid-liquid extraction method at two pH different from each other after the hydrolysis, with a gas chromatography-mass spectrometry; a second step of converting the chromatogram result into numerical values capable of being statistically processed; and a third step of analyzing the numerical values with a principal component analysis (PCA) and a discriminant analysis (DA) to detect a difference between the control group and the test group. According to the invention, the difference between the two groups can be comprehensively detected with the areas of the peaks on the chromatogram, without a standard material or verified quantitative method. Therefore, it is possible to detect the metabolic change in the organism due to the disease or gene mutation, without an accurate quantitative analysis of the metabolites.
    • 公开了提取生物样品中存在的所有代谢物的方法,以检测对照组和试验组的代谢物之间的综合差异,从而验证其意义。 更具体地说,本发明包括分析用固相萃取法萃取的馏分的第一步骤,用液 - 液萃取方法提取剩余馏分获得的馏分,并用液 - 液萃取方法在两种pH值下提取馏分 水解后,用气相色谱 - 质谱联用; 将色谱图结果转换为能够进行统计处理的数值的第二步骤; 以及通过主成分分析(PCA)和判别式分析(DA)分析数值以检测对照组和测试组之间的差异的第三步骤。 根据本发明,可以用色谱图上峰的面积全面检测两组之间的差异,无需标准材料或经过验证的定量方法。 因此,可以检测由于疾病或基因突变而导致的生物体的代谢变化,而不对该代谢产物进行准确的定量分析。
    • 7. 发明申请
    • Method for analysis of metabolite difference between two biological samples using gas chromatography-mass spectrometry
    • 使用气相色谱 - 质谱法分析两种生物样品之间代谢物差异的方法
    • US20080076181A1
    • 2008-03-27
    • US11784292
    • 2007-04-05
    • Byung Hwa JungBong Chul Chung
    • Byung Hwa JungBong Chul Chung
    • G01N30/02G01N1/28
    • G01N33/6848G01N30/7206G06F19/24Y10T436/255
    • Disclosed is a method of extracting all metabolites existing in a biological sample to detect a comprehensive difference between metabolites of a control group and a test group, thereby verifying significance thereof. More particularly, the invention comprises a first step of analyzing a fraction extracted with a solid phase extraction method, a fraction obtained by extracting the remnant fraction with a liquid-liquid extraction method and fractions extracted with the liquid-liquid extraction method at two pH different from each other after the hydrolysis, with a gas chromatography-mass spectrometry; a second step of converting the chromatogram result into numerical values capable of being statistically processed; and a third step of analyzing the numerical values with a principal component analysis (PCA) and a discriminant analysis (DA) to detect a difference between the control group and the test group. According to the invention, the difference between the two groups can be comprehensively detected with the areas of the peaks on the chromatogram, without a standard material or verified quantitative method. Therefore, it is possible to detect the metabolic change in the organism due to the disease or gene mutation, without an accurate quantitative analysis of the metabolites.
    • 公开了提取生物样品中存在的所有代谢物的方法,以检测对照组和试验组的代谢物之间的综合差异,从而验证其意义。 更具体地说,本发明包括分析用固相萃取法萃取的馏分的第一步骤,用液 - 液萃取方法提取剩余馏分获得的馏分,并用液 - 液萃取方法在两种pH值下提取馏分 水解后,用气相色谱 - 质谱联用; 将色谱图结果转换为能够进行统计处理的数值的第二步骤; 以及通过主成分分析(PCA)和判别式分析(DA)分析数值以检测对照组和测试组之间的差异的第三步骤。 根据本发明,可以用色谱图上峰的面积全面检测两组之间的差异,无需标准材料或经过验证的定量方法。 因此,可以检测由于疾病或基因突变而导致的生物体的代谢变化,而不对该代谢产物进行准确的定量分析。