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 Gallium: A New Antibacterial Agent?

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deena

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Number of posts : 112
Registration date : 2006-12-09

PostSubject: Gallium: A New Antibacterial Agent?   Tue Mar 20, 2007 3:01 am

Gallium: A New Antibacterial Agent?


Journal of Clinical Investigation, Pradeep Singh and colleagues show that Gallium (Ga), which is chemically similar to Fe and can disrupt biological systems by substituting for Fe, inhibits the in vitro growth of Pseudomonas aeruginonsa; even multidrug resistant strains of P. aeruginonsa isolated from individuals with cystic fibrosis. Ga also prevented P. aeruginonsa forming biofilms, the multi-cellular bacterial communities responsible for chronic bacterial infections, and killed both free-living bacteria and bacteria in biofilms. Furthermore, inhalation of Ga protected mice from both acute and chronic P. aeruginonsa lung infections. As Ga is already FDA approved for the treatment of hypercalcemia of malignancy, these data suggest that Ga might be a promising new therapeutic for the treatment of infection with P. aeruginonsa, a major cause of infection in individuals with cystic fibrosis and of infection acquired in hospital.
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