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TGF-β1 increases androgen receptor activity in hair loss, but Hic-5/ARA55 can counter this effect.

In this study, researchers found that keratinocytes are unlikely to be target cells for androgen, as shown by limited androgen receptor transcriptional activity in keratinocyte cells.

Some treatments like topical oxygen and stem cells show promise for wound healing and hair growth, but evidence for modern dressings over traditional ones is limited.

This study observed that the SREBF1 mutation c.1669C>T (p.Arg557Cys) may act as a recurrent hotspot mutation associated with both hereditary mucoepithelial dysplasia and autosomal-dominant ichthyosis follicularis with atrichia and photophobia syndrome, suggesting they may be on the same clinical spectrum.

This study found that increased expression of type II 5α-reductase, androgen receptors, and Hic-5/ARA55 in dermal papilla cells upregulates androgen sensitivity, playing a key role in androgenetic alopecia pathogenesis.