title: [Effect of the extraction of LPS (R) on the demonstration of the serological response in acute brucellosis by immunoblotting].
abstract: In order to establish the possible influence of Brucella melitensis rough strains protein extracts contamination using LPS (R) in the immunoblotting evaluation of serologic response, we have studied sera samples from 41 patients with acute brucellosis before treatment was started and also from 62 healthy individuals (control group). A whole-cell B. melitensis 115 strain extract with an without LPS (R) was used. Extraction was carried using ether-chloroform of oil-phenol. Overall, more than 50% of patients showed an antibody response (protein bands 85, 53, 50, 47, 41, 38 and 28 kD) to both antigenic products. Less than 6.4% of the control group sera showed response to any of these protein bands. There were no significant differences in the frequency of response development against these proteins using the two antigen types. However, there was some disagreement when each individual band response was compared to its homologous band.
authors.affiliation: Servicio de Microbiología, Hospital Virgen de las Nieves, Granada.
authors.forename: J
authors.initials: J
authors.lastname: Leiva
authors.forename: J
authors.initials: J
authors.lastname: Plata
authors.forename: M J
authors.initials: MJ
authors.lastname: Martínez
authors.forename: F E
authors.initials: FE
authors.lastname: Narbona
authors.forename: J
authors.initials: J
authors.lastname: Mendoza
authors.forename: J M
authors.initials: JM
authors.lastname: Navarro
authors.forename: M
authors.initials: M
authors.lastname: de la Rosa
mesh_terms: D000208:Acute Disease; D000293:Adolescent; D000328:Adult; D000368:Aged; D000907:Antibodies, Bacterial / Q000097:blood*; D000942:Antigens, Bacterial / Q000276:immunology; D001426:Bacterial Proteins / Q000276:immunology; D002002:Brucella / Q000276:immunology*; D002006:Brucellosis / Q000097:blood / Q000276:immunology*; D002675:Child, Preschool; D003429:Cross Reactions; D006801:Humans; D015151:Immunoblotting; D008070:Lipopolysaccharides / Q000276:immunology*; D008875:Middle Aged
chemical_list: D000907:Antibodies, Bacterial; D000942:Antigens, Bacterial; D001426:Bacterial Proteins; D008070:Lipopolysaccharides
vernacular_title: Influencia de la extracción del LPS (R) en la demonstración de la respuesta serológica en la brucelosis aguda por immunoblotting.