Polyethylene glycol-phosphatidylethanolamine conjugate as a pulmonary nanocarrier for poorly soluble drug
The aim of this study was to investigate the potential of a polyethylene glycol-phosphatidylethanolamine conjugate (PEG<sub>2000</sub> -DSPE) to solubilize budesonide (BUD) for pulmonary delivery. The BUD-strictly stabilized phospholipid nanomicelles (SSMs) were prepared using the coprec...
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| Autores principales: | , , , , |
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| Formato: | Articulo |
| Lenguaje: | Inglés |
| Publicado: |
2012
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| Materias: | |
| Acceso en línea: | http://sedici.unlp.edu.ar/handle/10915/8431 http://www.latamjpharm.org/resumenes/31/1/LAJOP_31_1_1_11.pdf |
| Aporte de: |
| Sumario: | The aim of this study was to investigate the potential of a polyethylene glycol-phosphatidylethanolamine conjugate (PEG<sub>2000</sub> -DSPE) to solubilize budesonide (BUD) for pulmonary delivery. The BUD-strictly stabilized phospholipid nanomicelles (SSMs) were prepared using the coprecipitation and reconstitution method and the physicochemical characteristics and pharmacodynamic duration of the BUD-SSMs were determined. The solubility of BUD was highly improved by at least 52 times its intrinsic solubility. The hydrodynamic particle size and zeta potential were 14.31 ± 1.40 nm and -46.61 ± 2.94 mV, respectively. The in vitro release of BUD from SSMs was completed within 6 days. Aerosolization of rehydrated BUD-SSMs with different nebulizers showed superior and significant aerodynamic characterizations compared to Pulmicort Respules® (PR). An in vivo study showed a significant reduction in the inflammatory cell counts of bronchoalveolar lavage fluid compared to PR. As a result, this study suggested that PEG<sub>2000</sub> -DSPE is a promising candidate as a budesonide carrier for pulmonary delivery. |
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