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In a rat skin wound model, this study observed that a composite dressing using chitosan hydrogel and exosomes derived from adipose mesenchymal stem cells enhanced wound healing by promoting collagen deposition, angiogenesis, and regeneration of hair follicle structures.

In this study, the researchers developed a biomimetic multilayer composite scaffold combining a decellularized amniotic membrane, fibroblast-laden collagen gel, and epidermal stem cells, which healed full-thickness skin wounds more quickly and effectively by regenerating hair follicles without scarring compared to Moropicin ointment.

Substance P helps restore skin thickness and cell renewal when sensory nerves are reduced.

In this study, researchers found that Wnt4 overexpression increased the thickness of burn wounds by promoting epidermal cell migration and activating the canonical Wnt signaling pathway.

Arg1+ macrophages may play a role in Alopecia Areata, offering new treatment targets.