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Candida clinical species identification: molecular and biochemical methods

机译:念珠菌临床物种鉴定:分子和生化方法

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In the last decade, the number and diversity of nosocomial Candida infections has increased significantly, resulting in an emergent need for rapid and accurate methods for Candida identification. Therefore, the aim of this study was to evaluate the performance of three biochemical systems (Auxacolor, ID32C, and Vitek 2 YST) for the identification of Candida species, comparing them with molecular identification (polymerase chain reaction and gel agarose electrophoresis). These methods were used to assess Candida spp. (229 clinical isolates) prevalence and distribution among clinical specimens. The biochemical methods with higher percentages of correct identification were Vitek 2 YST (79.6%) and Auxacolor (78.6%). However, overall the biochemical methods assayed differed from the molecular identification. Thus, due to their rapid and precise identification, molecular methods are promising techniques for Candida species identification in clinical laboratories. Candida albicans and Non Candida albicans Candida species had a similar prevalence (50.4 and 49.6%, respectively), corroborating the epidemiological shift observed for these pathogens in the recent years.
机译:在过去的十年中,医院内念珠菌感染的数量和多样性显着增加,因此迫切需要快速,准确的鉴定念珠菌的方法。因此,本研究的目的是评估三种生化系统(Auxacolor,ID32C和Vitek 2 YST)用于鉴定念珠菌的性能,并将其与分子鉴定(聚合酶链反应和凝胶琼脂糖电泳)进行比较。这些方法用于评估假丝酵母菌。 (229临床分离株)在临床标本中的流行和分布。正确识别百分比更高的生化方法是Vitek 2 YST(79.6%)和Auxacolor(78.6%)。但是,总体而言,所测定的生化方法不同于分子鉴定。因此,由于其快速和精确的鉴定,分子方法是临床实验室中念珠菌属鉴定的有前途的技术。白色念珠菌和白色念珠菌的患病率相似(分别为50.4和49.6%),证实了近年来这些病原体的流行病学变化。

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