title: Sperm antibodies in normal men: association with a history of nongonococcal urethritis (NGU).
abstract: The incidence and specificity of sperm antibodies was examined, retrospectively, in a group of 80 normal men (64 sperm donors and 16 prevasectomy patients). Seven (8.5%) were positive for sperm-bound antibodies by immunobead test (IBT), but the antibodies were restricted to the sperm tail-tip. There was a higher (p less than 0.001) incidence of nongonococcal urethritis (NGU) in the IBT-positive men, suggesting a possible causal relationship.
mesh_terms: D000293:Adolescent; D000328:Adult; D001323:Autoantibodies / Q000276:immunology*; D005298:Fertility; D006801:Humans; D008297:Male; D008875:Middle Aged; D012189:Retrospective Studies; D013082:Sperm Tail / Q000276:immunology; D013094:Spermatozoa / Q000276:immunology*; D014526:Urethritis / Q000276:immunology*
chemical_list: D001323:Autoantibodies