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The effect of the host\u27s iron status on tuberculosis
Authors
Rui Appelberg
Johan R. Boelaert
Victor R. Gordeuk
Stefaan J. Vandecasteele
Publication date
15 June 2007
Publisher
Digital Howard @ Howard University
Abstract
Several lines of evidence have suggested that iron is critical for Mycobacterium tuberculosis growth in macrophages. Macrophage iron loading in patients with African iron overload increases the risk of tuberculosis (TB) and may worsen TB outcome. Likewise, macrophage iron loading may contribute to an increased predisposition toward TB in HIV infection. Human genetic disorders or variations may increase the risk of TB or worsen its outcome through macrophage iron loading, including the haptoglobin 2-2 phenotype, NRAMP1 polymorphisms (at least in Africans and Asians), and possibly ferroportin 1 mutations, but not HFE hemochromatosis. Thus, the host\u27s iron status may be an important yet underevaluated factor in TB prevention and therapy and in TB vaccine design. © 2007 by the Infectious Diseases Society of America. All rights reserved
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Last time updated on 16/12/2021