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用16S和23S rDNA基因芯片检测和鉴定临床常见感染性消化道病原菌 被引量:1

Detection and identification of clinical pathogenic bacteria with 16S and 23S rDNA-based oligonucleotide microarray
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摘要 目的以细菌16S rDNA和23Sr DNA基因为靶序列,建立可检测临床7种常见病原菌寡核苷酸芯片系统。方法采用双重PCR扩增标本中靶细菌16S rDNA和23S rDNA基因片段。构建能同时检测肠出血性大肠埃希菌O157:H7、副溶血性弧菌、沙门菌、霍乱弧菌、产单核李斯特菌、空肠弯曲菌和志贺菌的寡核苷酸芯片,并考核芯片的检测特异性、灵敏度和重复性。采用所建立的寡核苷酸芯片检测81例腹泻和呕吐病人粪便样本。结果双重PCR可同时扩增上述7种病原菌的16S rDNA和23S rDNA基因靶序列。所研制的寡核苷酸芯片检测灵敏度可达103cfu/ml,非靶细菌无阳性结果,不同批间和批内芯片的变异系数为3.89%~5.81%。寡核苷酸芯片检测粪便样本的阳性率为39.5%(32/81),与常规细菌学检查法检测结果的一致率达到96.3%(78/81),菌种鉴定结果一致率为96.8%(31/32)。结论本研究中建立的寡核苷酸芯片法在检测上述7种病原菌时,具有简便、快速、准确、稳定、高通量等优点,适合于临床样本检测及流行病学的现场调查。
出处 《浙江检验医学》 2008年第3期32-35,共4页 Zhejiang Journal of Laboratory Medicine
基金 湖州市社发科研计划(2006YS12)
关键词 寡核苷酸芯片 病原菌 检测 Oligonucleotide microarray Pathogenic bacteria Detection
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  • 1Lin Cai~1 Shun-Zhang Yu~2 Zuo-Feng Zhang~3 1 Department of Epidemiology,Fujian Medical University,Fuzhou 350004,Fujian Province,China2 Department of Epidemiology,Shanghai Medical University,Shanghai 200032,China3 Department of Epidemiology,UCLA School of Public Health,Los Angeles California,USA.Cytochrome P450 2E1 genetic polymorphism and gastric cancer in Changle,Fujian Province[J].World Journal of Gastroenterology,2001,7(6):792-795. 被引量:26
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