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CCLM:通过代谢标志物和炎症反应变量的组合诊断急性小儿阑尾炎

2018-07-31 MedSci MedSci原创

新的代谢标志物的发现可能有助于急性小儿阑尾炎(APA)的早期诊断。然而,尚未报道关于通过代谢组学鉴定APA诊断的潜在代谢标志物的研究。本研究通过基于1 H NMR的代谢组学分析APA(n = 32),非阑尾炎炎症(NAI,n = 32)和健康儿童(HS,n = 65)的血清样品。最有效标记物组合通过建立逻辑回归模型筛选,并对40个双盲样本进一步验证该模型。研究结果鉴定了APA组中与其他组不同的9种

新的代谢标志物的发现可能有助于急性小儿阑尾炎(APA)的早期诊断。然而,尚未报道关于通过代谢组学鉴定APA诊断的潜在代谢标志物的研究。
本研究通过基于1 H NMR的代谢组学分析APA(n = 32),非阑尾炎炎症(NAI,n = 32)和健康儿童(HS,n = 65)的血清样品。最有效标记物组合通过建立逻辑回归模型筛选,并对40个双盲样本进一步验证该模型。
研究结果鉴定了APA组中与其他组不同的9种血液代谢物。区分APA和HS,乙酸盐,甲酸盐,白细胞(WBC)和C反应蛋白(CRP)的单一变量显示出高诊断价值(接受者操作特征下的面积[AUROC] <0.92),然而用于鉴定APA和NAI,诊断值较弱(AUROC <0.77)。相比之下,亮氨酸的AUROC值(0.799)高于WBC和CRP。五种变量的组合,即亮氨酸,乳酸盐,甜菜碱,WBC和CRP,对于区别APA和NAI显示出较高的诊断值(AUROC = 0.973),并且灵敏度和特异性分别为93.8%和93.7%。进一步的双盲样本预测显示:40个未知样本的模型准确度为85%。
本研究为理解与APA相关的代谢改变提供了有用的信息,并表明血清中这些代谢物的有效测量有助于APA的临床诊断。
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    2018-08-01 明崖

    学习了,有用的研究

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