Abstract
BackgroundFumaria species (Fumariacea) has traditionally been used in wound healing in Iranian folk medicine. However, with the discovery of newer agents, its use has faded off into total obscurity. This study explored the wound healing potential of a gel containing 10% Fumaria vaillantii Loisel through topical application of total extract in a model of excisional as well as incisional wound healing in albino Wistar rats.MethodsRats were anesthetized, and excisional skin wound was established using a sterilized surgical scissors. The animals were then treated with 10% F.vaillantii topical gel formulation along with the gel base. The treatments were administered once a day after the injury for 21 days. For topical treatment, the hydrogel was formulated and evaluated for chemical and physical characteristics. Histopathological analysis with hematoxylin and eosin (H&E) was used for microscopic examination of the skin tissues on 21-day-old sections of excision wound. To verify collagen formation, hydroxyproline determination was performed 21 days post wound healing. Breaking strength was determined in a 10-day-old incision wound by the uniaxial tensile test.ResultsTopical administration of F.vaillantii gel formulation significantly enhanced skin wound closure on the 6th post-wounding day compared to both gel base and the negative control, indicating an accelerated wound healing process, while a significant difference was observed on 10th and 14th post –wound days in F.vaillantii treatment compared to the negative control groups. Gel formulation prepared with a 10% F. vaillantii extract exhibited a response in terms of wound epithelialization, angiogenesis and number of hair follicles at wound area better than the gel base on the 21st post-wound day. Application of gel base produced further advantages by increasing hydroxyproline content and collagen fiber thickness. Our results on incision wound model were supported by histopathological data indicating the role of gel base in the enhancement of breaking strength.ConclusionTraditional use of Fumaria species in the skin diseases was justified in this study by revealing the increase in wound healing activity after hydrogel containing F. vaillantii total extract administration.Graphical abstract
Highlights
Fumaria species (Fumariacea) has traditionally been used in wound healing in Iranian folk medicine
Several stages are involved in a wound healing process including inflammatory, proliferation and remodeling phases [2, 4]
We aimed to formulate a hydrogel for topical administration of F.vaillantii extract, which is suitable for dermatological application including wound healing
Summary
Fumaria species (Fumariacea) has traditionally been used in wound healing in Iranian folk medicine. This study explored the wound healing potential of a gel containing 10% Fumaria vaillantii Loisel through topical application of total extract in a model of excisional as well as incisional wound healing in albino Wistar rats. Several stages are involved in a wound healing process including inflammatory, proliferation and remodeling phases [2, 4]. Up to 80% of the world’s population use herbal medicines in the treatment of various skin disorders, and known drugs obtained from plant sources have proved to enhance the healing of different wounds [1, 5]. In Iranian folklore, medicinal plants are used to heal skin wounds [6]; the potential of many traditional herbal extracts in wound healing still remains unexplored
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