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Identification of potential diagnostic biomarkers of cerebral infarction using gas chromatography-mass spectrometry and chemometrics

机译:气相色谱-质谱和化学计量学鉴定潜在的脑梗死生物标志物

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Cerebral infarction (CI) is one of the most common cerebrovascular diseases and remains a major health problem worldwide. In this study, we evaluated the potential diagnostic biomarkers and important relevant metabolic pathways associated with CI. Metabolomics based on gas chromatography-mass spectrometry coupled with the multivariate pattern recognition technique were used to characterize the potential serum metabolic profiles of CI. Forty healthy controls and thirty-three cerebral infarction patients were recruited for the nontargeted global metabolites' study and subsequent targeted fatty acid analysis. Overall, thirty-four endogenous metabolites were found in serum from the untargeted global study, four of which were detected to be significantly different between the CI group and healthy controls, including L -lysine, octadecanoic acid (fatty acid), L -tyrosine and lactic acid. Additionally, fourteen free fatty acids were identified by the subsequent targeted fatty acid analysis, and seven of them were detected to be significantly different between the CI group and healthy controls, which were mainly associated with arachidonic acid metabolism and fatty acid metabolism. Our results suggest several potential diagnostic biomarkers, and serum metabolism research is demonstrated as a powerful tool to explore the pathogenesis of CI.
机译:脑梗塞(CI)是最常见的脑血管疾病之一,并且仍然是全球范围内的主要健康问题。在这项研究中,我们评估了与CI相关的潜在诊断生物标志物和重要的相关代谢途径。基于气相色谱-质谱联用多变量模式识别技术的代谢组学用于表征CI的潜在血清代谢谱。招募了40名健康对照和33例脑梗死患者用于非目标全局代谢物的研究和随后的目标脂肪酸分析。总体而言,这项非针对性的全球研究在血清中发现了34种内源性代谢物,其中CI组和健康对照之间有4种差异显着,包括L-赖氨酸,十八烷酸(脂肪酸),L-酪氨酸和乳酸。此外,通过随后的目标脂肪酸分析鉴定出14种游离脂肪酸,并且发现其中7种在CI组和健康对照组之间存在显着差异,这主要与花生四烯酸代谢和脂肪酸代谢有关。我们的结果表明了几种潜在的诊断生物标志物,并且血清代谢研究被证明是探索CI发病机理的有力工具。

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