title: UVA induced darkening of lower epidermal cells as an in vitro system of immediate pigment darkening (IPD) and mechanisms of IPD.
mesh_terms: D000818:Animals; D002460:Cell Line; D004307:Dose-Response Relationship, Radiation; D004578:Electron Spin Resonance Spectroscopy; D000078404:Epidermal Cells; D004817:Epidermis / Q000528:radiation effects; D006801:Humans; D066298:In Vitro Techniques; D008543:Melanins / Q000528:radiation effects; D008545:Melanoma / Q000473:pathology; D051379:Mice; D012880:Skin Pigmentation / Q000528:radiation effects*; D014466:Ultraviolet Rays
chemical_list: D008543:Melanins