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  • Title: The mouse foot-pad technique for cultivation of Mycobacterium leprae.
    Author: Levy L, Ji B.
    Journal: Lepr Rev; 2006 Mar; 77(1):5-24. PubMed ID: 16715686.
    Abstract:
    Although multiplication of Mycobacterium leprae in the foot pads of immune-competent mice is limited, and no leprosy-like lesions are produced in these animals, the mouse foot-pad system represents the first truly useful and reproducible animal model of M. leprae infection. Its employment has enabled research into basic questions with respect to the microbiology of M. leprae, and the epidemiology, treatment and control of leprosy. The mouse foot-pad technique is labour-intensive and time-consuming, and is expensive in terms of the costs of animal purchase and maintenance. In addition, the technique appears to be rather imprecise and insensitive, compared with the techniques employed in working with cultivable micro-organisms. For these reasons, and also as a by-product of the success of multi-drug therapy, the technique has been abandoned in many research centres. Nevertheless, until a more simple and sensitive technique for demonstrating the viability of M. leprae is developed, the mouse foot-pad system remains an essential tool for leprosy research. In this review, we discuss the mouse foot-pad technique in detail, analyse its precision, point out its shortcomings, describe its most important applications, and prescribe a method by which to assess the ability of an alternative technique to serve in place of this established technique.
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