Preclinical animal study of electrospun poly (l-lactide-co-caprolactone) and formulated porcine fibrinogen for full-thickness diabetic wound regeneration - 29/04/23
Abstract |
Diabetic foot ulcer is one of the most serious chronic complications of diabetes mellitus. It may lead to amputation of the lower extremities for diabetics. Our study was to evaluate the effect of electrospun poly (L-lactide-co-caprolactone) and formulated porcine fibrinogen (PLCL/Fg) wound dressing on animal wound model. A blend ratio of PLCL/Fg scaffold was 4 (PLCL):1 (Fg). The scanning electron microscopy findings showed that the fibers’ diameter was 122.5 ± 80.3 nm, and the tensile strength was 9.2 ± 0.2 MPa. In-vivo study of the hog normal model demonstrated that PLCL/Fg dressing had better biocompatibility, degradability, and ability to restore the skin's normal structure. We evaluated the wound healing processes in the rat diabetic model by macroscopic observation and histological observation at 1, 2, and 3 post-operation weeks. In our study, the PLCL/Fg group performed better 3 weeks after surgery, in terms of macroscopic healing and scarring. After surgery, the PLCL/Fg group showed better fibroblast accumulation, tissue granulation, and collagen expression than the control group. Topical treatment with PLCL/Fg dressing effectively enhanced wound healing in both normal and hyperglycemic conditions, suggesting that it may possess wound-healing potential.
Le texte complet de cet article est disponible en PDF.Graphical Abstract |
Scheme 1. Schematic illustration shows the physical property of PLCL/Fg dressing and their application for normal and diabetic wound healing.
Scheme 1. Schematic illustration shows the physical property of PLCL/Fg dressing and their application for normal and diabetic wound healing.ga1Le texte complet de cet article est disponible en PDF.
Highlights |
• | Evaluate the effect of electrospun poly (l-lactide-co-caprolactone) and formulated porcine fibrinogen (PLCL/Fg) wound dressing on animal wound model. |
• | PLCL/Fg reshaped the microenvironment in diabetic wounds to promote re-epithelialization, dermal reconstruction, and maturation of mature blood vessels. |
• | Topical treatment with PLCL/Fg dressing effectively enhanced wound healing in both normal and hyperglycemic conditions, suggesting that it may possess wound-healing potential. |
Keywords : Poly (l-lactide-co-caprolactone), Fibrinogen, Scaffold, Diabetic wound, Regeneration
Plan
Vol 162
Article 114734- juin 2023 Retour au numéroBienvenue sur EM-consulte, la référence des professionnels de santé.
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