46 citations
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May 1991 in “British Journal of Dermatology” In this study, heparin was found to exert dose- and hair cycle-dependent effects on skin epithelial cells in mice, affecting hair follicle development and protein synthesis differently based on its administration method.
16 citations
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April 2016 in “PLoS ONE” 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.
61 citations
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July 2011 in “PLOS ONE” This study provides the first direct evidence that spermidine can stimulate hair growth and modulate human epithelial stem cell biology in cultured human hair follicles.
2 citations
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February 2012 in “PubMed” This study found that Gp₄G increased hair length, papilla cell numbers, and versican deposition in treated animals, potentially through alterations in hair follicle phases and nucleotide concentrations.
190 citations
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October 2002 in “The FASEB journal” In this study, androgen did not affect keratinocyte growth in coculture with androgenetic alopecia-derived dermal papilla cells, but did significantly suppress keratinocyte growth when androgen receptor was overexpressed in the papilla cells.