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J Clin Virol 2001 Feb;20(3):123-6
Iron and Mycobacterium tuberculosis infection.
Lounis N, Truffot-Pernot C, Grosset J, Gordeuk VR, Boelaert JR
Laboratoire de Bacteriologie, Faculte de Medecine Pitie-Salpetriere,
Paris, France.
BACKGROUND: iron is known to play a role in the susceptibility to and
outcome of several infections. In view of the increasing worldwide
problem of tuberculosis, it may be important to ascertain whether this
is also the case with this infection. OBJECTIVES: (1) to review
studies conducted in vitro, in experimental animals, and in humans
that provide evidence that iron status may influence the occurrence
and outcome of tuberculosis. (2) To perform an in vivo study in mice,
examining the effect of iron loading on experimental infection caused
by a virulent strain of Mycobacterium tuberculosis. RESULTS: we
studied the effect of iron loading on the growth in spleen and lungs
of a virulent strain of M. tuberculosis, injected i.v. in female
Balb/C mice. At sacrifice on day 42 after the experimental infection,
the iron-loaded mice presented a significantly enhanced multiplication
of M. tuberculosis in both the spleen and the lungs, when compared to
the mice without iron loading. CONCLUSION: Most of the studies,
including our experimental study in mice, tend to suggest that an
excess of iron may enhance the growth of M. tuberculosis and worsen
the outcome of human tuberculosis.
Publication Types:
* Review
* Review, tutorial
PMID: 11166659, UI: 21112138
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