title: Antibody response to peptidoglycan during staphylococcal infections.
abstract: Levels of antibodies to peptidoglycan were measured by solid-phase radioimmunoassay in 76 patients with Staphylococcus aureus infections and 44 patients with infections caused by other bacteria. Levels of IgM antibodies to peptidoglycan were elevated in 24% of the patients with endocarditis or complicated bacteremia caused by S. aureus, 21% of those with serious infections caused by other gram-positive cocci, none of those with less serious infections caused by S. aureus or gram-negative bacilli, and 5% of the normal controls. Levels of IgG antibodies to peptidoglycan were elevated in 50% of the patients with endocarditis or complicated bacteremia caused by S. aureus, 3% of those with less severe infections caused by S. aureus, 17% of those with infections caused by other gram-positive cocci, 20% of those infections caused by gram-negative bacilli, and 5% of the normal controls.
mesh_terms: D000907:Antibodies, Bacterial / Q000032:analysis*; D000917:Antibody Formation; D004696:Endocarditis / Q000276:immunology; D006801:Humans; D007074:Immunoglobulin G / Q000032:analysis; D007075:Immunoglobulin M / Q000032:analysis; D010457:Peptidoglycan / Q000276:immunology*; D011863:Radioimmunoassay; D013203:Staphylococcal Infections / Q000276:immunology*
chemical_list: D000907:Antibodies, Bacterial; D007074:Immunoglobulin G; D007075:Immunoglobulin M; D010457:Peptidoglycan