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  • Title: A biocompatible sodium alginate/povidone iodine film enhances wound healing.
    Author: Summa M, Russo D, Penna I, Margaroli N, Bayer IS, Bandiera T, Athanassiou A, Bertorelli R.
    Journal: Eur J Pharm Biopharm; 2018 Jan; 122():17-24. PubMed ID: 29017952.
    Abstract:
    In the last few years, there has been an increasing tendency to use natural polymers for the fabrication of dressings for wound and burn management. Among them, alginate, a polysaccharide extracted primarily from marine algae, exhibits attractive properties being non-toxic, hydrophilic and biodegradable. The aim of this study was to characterize the in vitro biocompatibility and the efficacy of a composite polymeric material based on sodium alginate (NaAlg) and povidone iodine (PVPI) complex in a mouse model of wound healing. The developed material combines the excellent wound healing properties of alginates with the bactericidal and fungicidal properties of PVPI, providing a controlled antiseptic release. We demonstrated that the NaAlg/PVPI films are able to reduce the inflammatory response both in human foreskin fibroblasts after lipopolysaccharide (LPS) stimulus and in rodents after wound induction. Furthermore, the NaAlg/PVPI film-treated animals showed a significantly higher wound closure compared to untreated animals at each time point considered. Interestingly, the complete wound closure was achieved within 12 days only in the film-treated group, indicating that the full-thickness wounds healed more rapidly in these animals. The results demonstrate that the NaAlg/PVPI films are biocompatible and possess healing properties that accelerate the wound closure.
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