title: The HL-A system in asbestos workers.
abstract: In a study of the HL-A system in 56 selected asbestos workers referred to the Pneumoconiosis Medical Panel with definite or suspected asbestosis, the W 27 antigen was found more often than among a control population.  Six of the 10 asbestos workers with the W 27 antigen had definite radiographic evidence of asbestosis compared to 13 out of 46 without the W 27 antigen.  These observations, if confirmed, suggest that the W 27 antigen may provide a useful marker of an enhanced susceptibility to the tissue-damaging effects of asbestos dust.
mesh_terms: D000328:Adult; D000368:Aged; D001194:Asbestos; D001195:Asbestosis / Q000175:diagnosis / Q000000981:diagnostic imaging / Q000276:immunology*; D004391:Dust; D005260:Female; D006680:HLA Antigens / Q000032:analysis*; D006649:Histocompatibility Antigens / Q000032:analysis*; D006801:Humans; D008297:Male; D008403:Mass Screening; D008875:Middle Aged; D009787:Occupational Medicine; D011859:Radiography
chemical_list: D004391:Dust; D006680:HLA Antigens; D006649:Histocompatibility Antigens; D001194:Asbestos