title: In vivo and in vitro phototoxicity of different parts of Heracleum laciniatum.
abstract: Experimental phytophotodermatitis was produced using homogenates from different parts of Heracleum laciniatum and long-wave ultraviolet light. The homogenates of leaves and flowers produced strong phototoxic reactions, fruit slightly less. Stems were either non-phototoxic or only slightly phototoxic. The roots of young plants did not evoke photosensitivity reactions, whereas the roots of older plants were strongly phototoxic; even roots collected from the frozen ground in December elicited strong reactions. Abdominal and midback skin were more photosensitive than skin of the lateral aspects of the underarms and legs.
mesh_terms: D002176:Candida albicans / Q000378:metabolism / Q000528:radiation effects; D006801:Humans; D066298:In Vitro Techniques; D010787:Photosensitivity Disorders / Q000209:etiology*; D010936:Plant Extracts / Q000378:metabolism / Q000528:radiation effects / Q000633:toxicity*; D010944:Plants / Q000378:metabolism; D012621:Seasons; D012882:Skin Tests
chemical_list: D010936:Plant Extracts