Burns : journal of the International Society for Burn Injuries
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Resveratrol promotes diabetic wound healing by inhibiting ferroptosis in vascular endothelial cells.
Diabetic wounds are a common complication of diabetes, with alarming disability and mortality rates. Ferroptosis plays an essential role in the occurrence and development of diabetes mellitus and its complications, suggesting that mitigating ferroptosis can be used as a potential therapeutic strategy. Resveratrol (RSV) can promote the angiogenesis of diabetic wounds, but its molecular mechanism is unclear, and RSV has a role in regulating ferroptosis. Therefore, we speculated that RSV could promote the angiogenesis of diabetic wounds and accelerate wound healing by regulating ferroptosis. ⋯ In diabetic wounds, AGEs can lead to ferroptosis in HUVECs. RSV can inhibit AGE-induced ferroptosis in HUVECs, further promoting angiogenesis in diabetic wounds, and ultimately accelerating wound healing.
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Hypertrophic scars present a serious concern after surgeries and trauma, particularly with the highest risk following burn injury. The current modeling methods usually involve relatively complicated surgical operations and special equipment, and have unstable reproducibility and reliability. This study aimed to establish a simple and reliable model of post-burn hypertrophic scarring in the rat tail. ⋯ We successfully established a model for post-burn hypertrophic scarring, utilizing reliable and simple techniques and materials, which could simulate the biological characteristics of post-burn scarring. Our innovative model has the potential to facilitate the study of post-burn wound healing and scar formation.
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Clinically, the condition of skeletal muscle injury is the key to the process of high voltage electrical burn (HVEB) wound repair. The aim of this study was to identify the potential mechanisms and intervention targets of skeletal muscle injury after HVEB. ⋯ Skeletal muscle injury caused by HVEB is characterized by adjacent endangered tissue progression after injury. Ferroptosis is involved in the mechanism of HVEB, and iron metabolism-related proteins may be potential targets for preventing progressive skeletal muscle injury.
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Dressings play a crucial role in the management of burn wounds. In this study, cotton bandages were modified with poly (N-isopropylacrylamide)/graphite oxide/nano silver (PNIPAM/GO-Ag) hydrogel to obtain a novel dressing (PNIPAM/GO-Ag/COT). The healing effect of the PNIPAM/GO-Ag/COT dressing on deep second-degree burn wounds in rats and the changes of related inflammatory factors were explored and analyzed systematically. ⋯ The results showed that, compared with the blank group (rats without the dressing treatment), the PNIPAM/GO-Ag/COT dressing reduced the expression of TNF-α by approximately 18 % and promoted the bFGF expression in wound tissue. Compared to the control group (rats with the gauze treatment), the wound healing rate in the PNIPAM/GO-Ag/COT dressing group was 58 % on the 14th day, with an increase of 30 %. These results demonstrated that the PNIPAM/GO-Ag/COT dressing primarily promoted burn wound healing by reducing inflammatory reactions, promoting collagen deposition, and enhancing the expression of bFGF.