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摘 要：大肠癌无创早期诊断有利于提高患者的生存率和顺应性，对粪便和血液中人源核酸进行检测是大肠癌无创早期诊断的重要途径，具有高特异性、高灵敏度和适用于大规模人群筛查等优点。核酸检测技术包括DNA检测技术和RNA检测技术，全文就这两类核酸检测技术应用于大肠癌早期无创诊断的研究进展进行概述。
Abstract: The noninvasive early diagnosis of colorectal cancer is helpful to improve the survival rate and compliance of patients. Detection of human nucleic acid in feces and blood is an important method of noninvasive early diagnosis of colorectal cancer. It has high specificity, high sensitivity and suitable for large-scale Crowd screening and other advantages. Nucleic acid detection techniques include DNA detection technology and RNA detection technology, the whole text of these two types of nucleic acid detection technology for early diagnosis of non-invasive diagnosis of colorectal cancer are summarized.