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Burn wound healing with injection of adipose-derived stem cells: a mouse model study.

Stem cells have shown promise with regard to the healing process of burn wounds. However, donor sites for these cells are still under investigation. The aim of this study is to review the efficacy of adipose tissue-derived stem cells (ADSCs) in accelerating wound healing of third degree burns in a mouse model. To this end, forty healthy male inbred Balb/c mice were selected and set up as an experimental model for third degree burn wounds. They were randomly divided into 3 equally sized groups: the ADSCs group, the mechanically prepared adipose tissue group, and the control group. The wounds were examined daily until the mice were sacrificed for tissue sampling in the 3(rd) week. Our results showed that wound surface area and eschar thickness were smaller in the ADSCs group throughout the study period, although there was no significant difference between the groups for decreasing values of wound area characteristics. In terms of wound healing parameters, lymphocyte and macrophage cell counts were larger in the ADSCs group compared to the other groups. Fibroplasia, collagen synthesis and remodeling were more aberrant in this group. However, there was no statistically significant difference in either of these observed differences (p>0.05). Although enzymatically prepared ADSCs seem a potential treatment in wound healing, our study of a mouse model burn wound revealed no significant improvement in using this option.