title: The nature of photoaging: its prevention and repair.
mesh_terms: D000375:Aging; D000818:Animals; D004547:Elastic Tissue / Q000528:radiation effects; D005109:Extracellular Matrix / Q000528:radiation effects; D006801:Humans; D007259:Infrared Rays; D051379:Mice; D008812:Mice, Hairless; D010787:Photosensitivity Disorders / Q000188:drug therapy / Q000473:pathology / Q000517:prevention & control*; D012867:Skin / Q000528:radiation effects* / Q000648:ultrastructure; D013472:Sunlight; D013473:Sunscreening Agents / Q000494:pharmacology; D014212:Tretinoin / Q000627:therapeutic use; D014466:Ultraviolet Rays
chemical_list: D013473:Sunscreening Agents; D014212:Tretinoin