Thibert L, Lapierre S
Laboratoire de Santé Publique du Québec, Sainte-Anne-de-Vellevue, Canada.
J Clin Microbiol. 1993 Jul;31(7):1759-63. doi: 10.1128/jcm.31.7.1759-1763.1993.
Mycolic acid analysis by high-performance liquid chromatography (HPLC) was introduced in our laboratory as the routine technique for identifying all clinical isolates of mycobacteria referred to us. HPLC identified 96.1% of the 1,103 strains analyzed, whereas the biochemical procedures and/or the commercial DNA probes identified 98.3% of strains, for an overall agreement of 94.4%. Compared with the probes, there was 100% specificity and 98.9% sensitivity for Mycobacterium tuberculosis identification. HPLC allowed early detection and identification of the rare mycobacterial species M. haemophilum, M. malmoense, M. shimoidei, and M. fallax as well as uncharacteristic strains of M. simiae. After 18 months of routine use, HPLC proved to be reliable, easy to perform, rapid, and less costly than other identification methods.
我们实验室采用高效液相色谱法(HPLC)对分枝杆菌临床分离株进行菌酸分析,作为鉴定所有送检临床分离株的常规技术。HPLC对1103株分析菌株中的96.1%进行了鉴定,而生化方法和/或商业DNA探针鉴定出98.3%的菌株,总体一致性为94.4%。与探针相比,结核分枝杆菌鉴定的特异性为100%,敏感性为98.9%。HPLC能够早期检测和鉴定罕见分枝杆菌菌种嗜血性分枝杆菌、马尔默分枝杆菌、下田分枝杆菌和类产碱假单胞菌以及不典型的猿分枝杆菌菌株。经过18个月的常规使用,HPLC被证明是可靠的,操作简便、快速,且比其他鉴定方法成本更低。