Mar 8, 2020

Sugar-based colloidal nanocarriers for topical meglumine antimoniate application to cutaneous leishmaniasis treatment: Ex vivo cutaneous retention and in vivo evaluation

European Journal of Pharmaceutical Sciences : Official Journal of the European Federation for Pharmaceutical Sciences
Thais Aragão HoroiwaAdriano M de Oliveira

Abstract

The leishmaniases are a group of diseases caused by protozoan parasites from Leishmania species. Effectiveness therapies for cutaneous leishmaniasis (CL), the most common form, are still needed to be developed since the available drugs such as meglumine antimoniate (MA) present severe adverse reactions. Here, we develop and characterize maltodextrin polymeric colloidal nanocarriers containing MA (PCN-MA) for topical CL treatment. PCN-MA is composed of 5 to 8% maltodextrin, 0.3% NaCl, 1% MA in 21% of water as aqueous-internal phase, containing or no 3% Kolliphor® P-188, and 10% SF1540 dispersed in a silicone-based external phase. It formed a colloidal system dispersed in silicone with high encapsulation efficiency (87% to 92%) and composite spherical-shaped particles with the smooth and regular surface within the nanosized scale, which was confirmed by scanning electron microscopy (SEM) and dynamic light scattering (DLS) analysis. Ex vivo cutaneous retention studies using pig ears skin on Franz diffusion cells revealed that the MA cutaneous retention is improved when delivered by PCN. Topical PCN-MA evaluation in murine leishmaniasis model showed similar efficacy than the intraperitoneal injection of the reference medicine (Gluc...Continue Reading

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Mentioned in this Paper

Adverse Reactions
Injections, Intraperitoneal
Silicon
Cutaneous
Wound Healing
Photon Correlation Spectroscopy
Particle
In Vivo
Scanning Electron Microscopy
Biomaterials

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