7 citations
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March 2003 in “PubMed” This study reported that in men with androgenic alopecia, a distinct subclinical hyperpigmentation pattern was observed in the scalp, associated with baldness severity and possibly linked to local melanin production by pilosebaceous units.
10 citations
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April 2009 in “Oncology Reports” This study found distinct skin surface changes, including faint mosaic melanoderma and atypical scaliness, on long-standing sun-exposed balding scalps that may be associated with actinic field carcinogenesis.
23 citations
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March 2019 in “The journal of investigative dermatology/Journal of investigative dermatology” This study found that extracellular ATP released from UVB-irradiated keratinocytes promotes melanin production through the P2X7 receptor, indicating a role for ATP-P2X7 signaling in UV-induced melanogenesis.
14 citations
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November 2013 in “PloS one” This study found that transgenic mice overexpressing HGF/SF are more susceptible to UVA-induced melanoma, with melanin in the papillary dermis interacting with UVA to induce melanoma.
July 2026 in “Asian Journal of Pharmaceutical Sciences” The researchers designed a Janus microneedle system for treating vitiligo, which targets the skin’s layers to regulate the immune response, promote melanocyte regeneration, and enhance pigment transfer, offering a new precise treatment approach for this condition.