Abstract
Leprosy is a chronic disease caused by infection with Mycobacterium leprae, which is manifested across a wide clinical spectrum. There is evidence that susceptibility both to leprosy per se and to the clinical type of leprosy is influenced by host genetic factors. This paper describes the application of an identity by descent regression search for genetic determinants of leprosy type among families from Karonga District, Northern Malawi. Suggestive evidence was found for linkage to leprosy type on chr 21q22 (P<0.001). The methodological implications of the approach and the findings are discussed.
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Acknowledgements
The data analysed here were collected within the context of the Karonga Prevention Study (KPS), which has been supported by the British Leprosy Relief Association (LEPRA) and the Wellcome Trust, with contributions from the International Federation of Anti-Leprosy Organisations (ILEP) and the WHO/UNDP/World Bank Special Programme for Research and Training in Tropical Diseases. We acknowledge the special contributions of Dr AC Crampin, and more than 50 field staff for the fieldwork, and the National Health Sciences Research Committee of Malawi for encouraging the KPS programme. We thank Dr Ruby Siddiqui for helpful comments. CW was supported by the British Medical Research Council.
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Wallace, C., Fitness, J., Hennig, B. et al. Linkage analysis of susceptibility to leprosy type using an IBD regression method. Genes Immun 5, 221–225 (2004). https://doi.org/10.1038/sj.gene.6364062
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DOI: https://doi.org/10.1038/sj.gene.6364062
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