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SHR Neuro Cancer Cardio Lipid Metab Microb

Firouz, B; Faihs, L; Slezak, P; Ghaffari, Tabrizi-Wizsy, N; Schicho, K; Winter, R; Kamolz, LP; Dungel, P.
Testing the effects of photobiomodulation on angiogenesis in a newly established CAM burn wound model.
Sci Rep. 2023; 13(1): 22985 Doi: 10.1038/s41598-023-50165-6 [OPEN ACCESS]
Web of Science PubMed PUBMED Central FullText FullText_MUG

 

Co-authors Med Uni Graz
Ghaffari Tabrizi-Wizsy Nassim
Kamolz Lars-Peter
Schicho Kurt
Winter Raimund
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Abstract:
Burn wounds are a common challenge for medical professionals. Current burn wound models hold several limitations, including a lack of comparability due to the heterogeneity of wounds and differences in individual wound healing. Hence, there is a need for reproducible in vivo models. In this study, we established a new burn wound model using the chorioallantoic membrane assay (CAM) as a surrogate model for animal experiments. The new experimental setup was tested by investigating the effects of the auspicious biophysical therapy, photobiomodulation (PBM), on the wound healing of an induced CAM burn wound with a metal stamp. PBM has been shown to positively influence wound healing through vascular proliferative effects and the increased secretion of chemotactic substances. The easily accessible burn wounds can be treated with various therapies. The model enables the analysis of ingrowing blood vessels (angiogenesis) and diameter and area of the wounds. The established model was used to test the effects of PBM on burn wound healing. PBM promoted angiogenesis in burn wounds on day 4 (p = 0.005). Furthermore, there was a not significant trend toward a higher number of vessels for day 6 (p = 0.065) in the irradiated group. Changes in diameter (p = 0.129) and the burn area (p = 0.131) were not significant. Our results suggest that CAM can be a suitable model for studying burn wounds. The novel experimental design enables reproducible and comparable studies on burn wound treatment.

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