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This study found that human hair keratin can serve as a matrix for skin structure restoration, as observed in rats where the graft was replaced by newly formed collagenous fibers over six weeks.

In this study, a collagen sponge with isogenic fibroblasts did not enhance skin graft survival or wound healing in rats, but it did promote re-epithelization, potentially inducing epithelial inclusion cysts.

In this study, researchers achieved complete reepithelialization and hair growth on a burn-injured scalp using a tissue-engineered dermal template with early micrograft hair follicle implantation.

In a porcine model, this study observed that using an External Tissue Expansion Device increased epidermis thickness, cell proliferation, and vessel density at fat graft recipient sites.

This study found that both intradermal injection and derma roller techniques for QR678Neo® hair regrowth therapy improved androgenetic alopecia symptoms, with intradermal injections showing non-significantly better video-microscopic outcomes but more pain and erythema associated with derma rollers.