Abstract
Amikacin (A), a water soluble aminoglycoside antibiotic is commercially available for intravenous administration only. Present investigation is aimed at the development of poly-lactic-co-glycolic acid (PLGA) nanoparticles (A-NPs).1 for oral permeability enhancement of amikacin. The pharmaceutical attributes of the A-NPs revealed particle size, 260.3 ± 2.05 nm, zeta potential, -12.9 ± 1.12 mV and drug content, 40.10 ± 1.87 μg/mg with spherical shape and smooth surface. In vitro antibacterial studies showed that the A-NPs were active against P. aeruginosa, K. pneumoniae and E. coli. The permeation study across rat ileum showed 2.6-fold improvement in Papp for A-NPs than A-S2 This increase in permeability is due to the uptake of nanoparticles by Peyer's patches of intestinal epithelium and endocytic uptake via enterocytes. Flow cytometric analysis demonstrated 2.2-fold higher uptake of Rh B-NPs3 than Rh B-S4 and elucidated the dominance of enterocytes mediated endocytosis of nanoparticles. Furthermore, stability data collected as per ICH guidelines for three months under accelerated conditions had shown that the A-NPs were stable. The purported drug delivery system hence, seems a promising tool to replace successfully the current intravenous therapy and is used to support relevant patient compliance thereby, adding value to the "patient care at home".
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