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  • Title: Low-energy extracorporeal shock wave therapy enhances skin wound healing in diabetic mice: a critical role of endothelial nitric oxide synthase.
    Author: Hayashi D, Kawakami K, Ito K, Ishii K, Tanno H, Imai Y, Kanno E, Maruyama R, Shimokawa H, Tachi M.
    Journal: Wound Repair Regen; 2012; 20(6):887-95. PubMed ID: 23110611.
    Abstract:
    Low-energy extracorporeal shock wave (LE-ESW) treatment has been shown to accelerate wound repair; however, the mechanisms of treatment remain unclear. In the present study, we addressed the role of endothelial nitric oxide synthase (eNOS). A single LE-ESW treatment accelerated the healing of wounds in diabetic mice caused by the injection of streptozotocin. This accelerated healing was accompanied by the increased expression of eNOS and vascular endothelial growth factor (VEGF) and the generation of new vessels at the wound tissues. These results raised the possibility that eNOS may be involved in the beneficial effects of LE-ESW treatment. To address this possibility, we compared the effects of this treatment between mice with a genetic disruption of eNOS knockout (eNOS-KO mice) and wild-type (WT) control mice. Interestingly, the LE-ESW-induced acceleration of wound closure and the increase in VEGF expression and neovascularization was significantly attenuated in eNOS-KO mice compared with WT mice. Considered collectively, these results showed that eNOS was induced at the wound tissues by LE-ESW treatment and played a critical role in the therapeutic effects of this treatment by accelerating the wound healing by promoting VEGF expression and neovascularization.
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