In-situ forming chitosan implant-loaded with raloxifene hydrochloride and bioactive glass nanoparticles for treatment of bone injuries: Formulation and biological evaluation in animal model
| Autor: | Amany A. Mostafa, Azza A. Mahmoud, Emad B. Basalious, Nermeen A. Elkasabgy, Mohammed Said Amer, Seham A. Elkheshen, Fatma S. Abdel-Salam |
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| Rok vydání: | 2019 |
| Předmět: |
Male
Bone Regeneration Drug Compounding Drug Evaluation Preclinical Pharmaceutical Science Nanoparticle 02 engineering and technology 030226 pharmacology & pharmacy law.invention Chitosan Rats Sprague-Dawley 03 medical and health sciences chemistry.chemical_compound 0302 clinical medicine law Animals Bone regeneration Drug Implants Drug Carriers Bone Density Conservation Agents Tibia Bone Injury Raloxifene Hydrochloride 021001 nanoscience & nanotechnology Rats Disease Models Animal Treatment Outcome chemistry Selective estrogen receptor modulator Bioactive glass Nanoparticles Implant Glass 0210 nano-technology Biomedical engineering |
| Zdroj: | International journal of pharmaceutics. 580 |
| ISSN: | 1873-3476 |
| Popis: | In-situ forming implants receive great attention for repairing serious bone injuries. The aim of the present study was to prepare novel chitosan in-situ forming implants (CIFI) loaded with bioactive glass nanoparticles and/or raloxifene hydrochloride (RLX). Incorporating raloxifene hydrochloride (RLX) as a selective estrogen receptor modulator was essential to make use of its anti-resorptive properties. The prepared formulae were tested for their in-vitro gelation time, drug release, injectability, rheological properties, erosion rate and morphological properties. Results revealed that the formulation composed of 1% (w/v) chitosan with 2% (w/v) NaHCO3 and 1% (w/v) bioactive glass nanoparticles (CIFI-BG) possessed the most sustained drug release profile which extended over four months with low burst release effect compared to the same formulation lacking bioactive glass nanoparticles (CIFI). Selected formulations were tested for their ability to enhance bone regeneration in induced puncture in rate tibia. Results declared that these formulations were able to enhance bone regeneration after 12 weeks in comparison to the untreated tibial punctures and that containing bioactive glass could be considered as novel approach for treatment of serious bone injuries which require long term treatment and internal mechanical bone support during healing. |
| Databáze: | OpenAIRE |
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