Effects of fixation on polymerase chain reaction detection of Mycobacterium leprae.

The effects of standard fixatives (10% neutral buffered formalin, ethanol and mercury based) on the detection of Mycobacterium leprae DNA by the polymerase chain reaction (PCR) were studied. Mercury-based fixatives (Zenker's and Carnoy-Lebrun's fluids) strongly inhibited PCR amplification of M. leprae DNA. Ten percent neutral buffered formalin was… (More)