Beyond Goosebumps: Interactions Between the Hair Follicle, the Arrector Pili Muscle, and the Sympathetic Nerve During Development and Hair Follicle Regeneration

    April 2018 in “ Journal of Investigative Dermatology ”
    Yulia Shwartz, M. Gonzalez Celeiro, Chunhui Chen … Yung-Yuan Hsu
    Studysummary This study found that arrector pili muscles formed by Sonic Hedgehog signaling play a critical role in maintaining sympathetic nerve connections to hair follicle stem cells, influencing hair regeneration, with implications for hair loss treatments.
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