The role of stabilizers and mechanical processes on physico-chemical and anti-inflammatory properties of methotrexate nanosuspensions
The aim of this study was to investigate two different mechanical processes (Ultra-turrax® and Sonication) and two stabilizers (Methyl cellulose (MC) and Poloxamer 407 (P407)) on the physico-chemical and anti-inflammatory properties of the MTX nanosuspensions. The mechanical process, presence and ty...
| Autores: | , , , , , , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2020 |
| País: | Brasil |
| Institución: | Universidade Estadual Paulista (UNESP) |
| Repositorio: | Repositório Institucional da UNESP |
| Idioma: | inglés |
| OAI Identifier: | oai:repositorio.unesp.br:11449/201629 |
| Acceso en línea: | http://dx.doi.org/10.1016/j.jddst.2020.101638 http://hdl.handle.net/11449/201629 |
| Access Level: | acceso abierto |
| Palabra clave: | Acid-base neutralization Anti-inflammatory activity Bottom-up process Methotrexate Methyl cellulose Nanosuspension Poloxamer 407 |
| Sumario: | The aim of this study was to investigate two different mechanical processes (Ultra-turrax® and Sonication) and two stabilizers (Methyl cellulose (MC) and Poloxamer 407 (P407)) on the physico-chemical and anti-inflammatory properties of the MTX nanosuspensions. The mechanical process, presence and type of stabilizers showed a strong impact on the particle size, polydispersity index (PDI), zeta potential and morphology of MTX nanosuspensions. In particular, the surfactant property of P407 in combination sonication process reduced significantly the particle size of MTX to nano-range size. Short term stability evaluated by dynamic light scattering (DLS) technique proved that the addition of the stabilizers MC and P407 on the MTX nanosuspensions provided stability through of the steric hindrance. In vitro dissolution studies showed that MTX nanosuspensions enhanced the drug release rates, revealing the influence of the different particle size on the drug release profiles. In vivo inflammation study indicated that MTX nanosuspensions presented a greater effect on the anti-inflammatory activity, maintaining this effect for up to 6 h, being more effective than the positive control. It could be concluded that the combined usage of mechanical processes and stabilizers modified in vitro and in vivo performance of the MTX nanosuspensions. Therefore, these results confirm the potential of these nanosuspensions as a promising tool for enhancement of dissolution rate and oral bioavailability of poorly water-soluble drugs, such as MTX. |
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