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J Antimicrob Chemother. 2001 Sep;48(3):431-4.

Airways delivery of rifampicin microparticles for the treatment of tuberculosis.

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  • 1School of Pharmacy, and Department of Pathology and Laboratory Animal Medicine, University of North Carolina at Chapel Hill, 27599, USA.

Abstract

A Mycobacterium tuberculosis (H37Rv)-infected guinea pig model was used to screen for targeted delivery to the lungs by insufflation (with lactose excipient) or nebulization, of either rifampicin alone, rifampicin within poly(lactide-co-glycolide) microspheres (R-PLGA) or polymer microparticles alone (PLGA). Animals treated with single and double doses of R-PLGA microspheres exhibited significantly reduced numbers of viable bacteria, inflammation and lung damage compared with lactose-, PLGA- or rifampicin-treated animals 28 days post-infection (P < 0.05). Two doses of R-PLGA resulted in reduced splenic enlargement. These studies support the potential of R-PLGA delivered to the lung to treat pulmonary tuberculosis.

PMID:
11533012
[PubMed - indexed for MEDLINE]
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