January 2015 in “Dermatology Review” This study found that LED light therapy may stimulate skin regeneration and wound healing, with various wavelengths affecting fibroblast proliferation, collagen synthesis, and hair growth in experimental settings.
14 citations
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January 2014 in “Cells Tissues Organs” This study found that single high-dose irradiation in mice induced more severe acute skin injury and hair depigmentation, while fractional doses led to longer-term damage in the dermis and subcutis.
March 2024 in “Preprints.org” In a study conducted on mice, researchers observed that exposure to ionizing radiation led to significant metabolic imbalances, including dyslipidemia and disruptions in amino acid metabolism, with activated protein C providing partial protection by normalizing certain plasma metabolites and lipids.
November 2025 in “Journal of Investigative Dermatology” This study found that UVB exposure led to visible tanning and distinct DNA methylation changes in pigmentation genes in tan-capable skin but not in non-tan skin, highlighting GNAS as a potentially UVB-responsive gene.
10 citations
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May 2021 in “Clinical, cosmetic and investigational dermatology” In this mouse study, UVA and UVB exposure led to hair follicle miniaturization, graying, and prolonged hair cycle duration, associated with changes in stem cells and increased Wnt signaling activity.