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非小细胞肺癌患者血清蛋白质标记物的检测 |
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z值为6628,9191和11412处3个峰的同时变化在NSCLC组和正常对照组中具有明确的诊断意义。m/z位于6628的蛋白质标记物在NSCLC患者组中低表达,在正常对照组中高表达;m/z位于9191,11412的蛋白标记物在NSCLC组中高表达,在正常对照组中低表达,特异性为98%,敏感性为96%。为了验证上述诊断模型的准确性和有效性,又进行了盲法验证。在盲法测试中,该诊断模型区分NSCLC患者与非肺癌对照的敏感性为96.56%,特异性为94.79%,阳性预测值为95.0%,显示出该诊断模型在大规模筛查、NSCLC的鉴别诊断及定性诊断中具有良好的应用前景。本实验构建的诊断模型经测试显示了其优越的诊断价值,为NSCLC的早期诊断提供了新方法,值得进一步的研究与应用。
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