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基质辅助激光解吸电离飞行时间质谱在微生物检测中的应用进展 被引量:7

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摘要 目前,临床微生物实验室鉴定细菌主要依赖于传统的生物化学、分子生物学和形态学等方法[1]。基于单菌落的生化特征鉴定耗时长,不能满足临床对检测结果时效性的要求;基于分子生物学方法进行微生物鉴定大大地提高了灵敏度和时效性,但对工作人员技术要求高,检测成本高,仅针对某些特定细菌,难以满足临床常规要求[2]。基质辅助激光解吸电离飞行时间质谱(matrix assisted laser desorption /ionizationtime -of -flight mass spectrometry,MALDI -TOF MS)以其操作简便、自动化、快速、高通量等优势受到青睐,成为了一种新的微生物鉴定方法。由于仪器昂贵,一次性投入成本高,MALDI -TOF MS 在国外临床微生物实验室的应用尚未普及,而在国内临床微生物检验中的应用刚刚起步。MALDI -TOF MS 以其固有的优势进入临床微生物诊断,将彻底改变微生物实验室的面貌。因此,了解并引进该技术用于快速低成本鉴定临床分离菌株是国内临床微生物工作者的迫切需要。本文就该技术和两种常用质谱系统在临床微生物实验室用于鉴定各种常见或重要细菌和真菌纯菌落,以及应用该技术直接检测临床标本中的细菌和真菌等方面作一综述,以便国内临床微生物工作者初步了解MALDI -TOF MS 在临床微生物诊断的应用和价值,并且基于实验室情况选择合适的质谱系统。
出处 《广东医学》 CAS CSCD 北大核心 2014年第6期957-960,共4页 Guangdong Medical Journal
基金 国家重大科技专项课题(编号:2012ZX10004-213 2013ZX10004805-004) 国家高技术研究发展计划(863计划)重大项目(编号:2011AA02A116)
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