58 citations
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January 2006 in “Skin Pharmacology and Physiology” This study found that testosterone and 5α-dihydrotestosterone induced apoptosis in dermal papilla cells from nonbalding scalp regions, suggesting a high androgen stimulus can trigger cell death related to androgenetic alopecia.
58 citations
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May 2004 in “British Journal of Dermatology” This study found that topical immunotherapy affects angiogenesis and immune cell ratios in the scalp, potentially offering insights into the mechanisms underlying alopecia areata.
2 citations
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August 2023 in “Ecotoxicology and environmental safety” This study found that vitamin A significantly enhanced the proliferation and inhibited apoptosis of rabbit dermal papilla cells under heat stress, likely by modulating miR-195/IGF1 and Wnt10b/β-catenin signaling pathways.
June 2026 in “Journal of Nanobiotechnology” This study reported that human umbilical cord mesenchymal stem cell-derived exosomes may promote hair regeneration and thickness in androgenic alopecia by modulating cellular pathways in hair growth, including increasing hair density and diameter, as observed in a mouse model and an exploratory clinical trial.
25 citations
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March 2022 in “International journal of biological macromolecules” This study found that exosomal miR-181a-5p promotes hair follicle growth and development in vitro by activating the Wnt/β-catenin signaling pathway and suppressing hair follicle stem cell apoptosis.