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In vitro and in vivo evaluation of chitosan scaffolds combined with simvastatin-loaded nanoparticles for guided bone regeneration

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Abstract

The objective of this study was to fabricate and characterize chitosan combined with different amounts of simvastatin-loaded nanoparticles and to investigate their potential for guided bone regeneration in vitro and in vivo. Different SIM-CSN formulations were combined into a chitosan scaffold (SIM-CSNs-S), and the morphology, simvastatin release profile, and effect on cell proliferation and differentiation were investigated. For in vivo experiments, ectopic osteogenesis and the critical-size cranial defect model in SD rats were chosen to evaluate bone regeneration potential. All three SIM-CSNs-S formulations had a porous structure and exhibited sustained simvastatin release. CSNs-S showed excellent degradation and biocompatibility characteristics. The 4 mg SIM-CSNs-S formulation stimulated higher BMSC ALP activity levels, demonstrated significantly earlier collagen enhancement, and led to faster bone regeneration than the other formulations. SIM-CSNs-S should have a significant effect on bone regeneration.

Highlights

  • Simvastatin-loaded nanoparticles of chitosan.

  • The preparing process of Chitosan scaffolds combined with simvastatin loaded is simple, low-cost and environmental friendly.

  • A sustained release of simvastatin.

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Acknowledgements

This work was jointly supported by the National Natural Science Foundation of China (Grant no: 81571016, Grant no: 51272181 and Grant no: 51672030), the science and technology development fund project of Tianjin University (Grant no: 20110410) and the scientific research fund of Stomatology Hospital Affiliated with Tianjin Medical University (Grant no: 2013YKYQ01).

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  1. These authors contributed equally: Yan Xue, Mingyao Wu

Authors and Affiliations

  1. School and Hospital of Stomatology, Tianjin Medical University, 12 Observatory Road, 300070, Tianjin, China

    Yan Xue, Zongren Liu, Jinhua Song, Shuyu Luo, Hongjie Li, Yuan Li, Lichun Jin, Mingli Lin, Fuyu Chen, Chenxin Jin, Yanqiu Li & Xu Zhang

  2. LangFang Health Vocational College, South Siguang Road, 065001, Langfang, China

    Mingyao Wu

  3. Department of Stomatology of Tianjin Medical University General Hospital, Binhai Hospital, No. 28, Hangu hospital road, Binhai new district, 300480, Tianjin, China

    Zongren Liu

  4. Department of Stomatology of Tianjin Medical University General Hospital, No.154, FeiLong road, 300052, Tianjin, China

    Binbin Guan

  5. Department of Cardiology, Beijing Hospital, National Center of Gerontology, 100730, Beijing, China

    Deping Liu

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  1. Yan Xue
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Xue, Y., Wu, M., Liu, Z. et al. In vitro and in vivo evaluation of chitosan scaffolds combined with simvastatin-loaded nanoparticles for guided bone regeneration. J Mater Sci: Mater Med 30, 47 (2019). https://doi.org/10.1007/s10856-019-6249-3

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