title: [Immunoglobulins in patients with Nocardia brasiliensis actinomycetoma].
abstract: Considering that some authors have reported an increasing of some immunoglobulins in actinomycetoma patients, in this study we propose to determine differential production of IgG1, IgG2, IgG3, IgG4 and IgGM in 25 patients with actinomycetoma and 25 healthy individuals from a mycetoma endemic area. Immunoglobulins were determined by ELISA technique. To sensibilize the plates, six Nocardia brasiliensis antigens were used: a crude antigen denominated NB and five derivatives (NB2, NB4, NB6, NB8 and NB10) obtained by their isoelectric point. Results showed that all IgG subclasses were higher in the patients' sera than in control sera, with a maximal difference to IgG3 and IgG4. To the latter subclass, six antigens were highly reactives. IgM levels were similar in both groups. As it occurs in other infections, in the actinomycetoma pathogenesis probably participate the increase or deficiency of a determined immunoglobulin class, as well as the relationship between different subclasses.
authors.affiliation: Unidad de Investigación Médica en Dermatología y Micología, Hospital de Especialidades, Centro Médico Nacional Siglo XXI, IMSS. ljmt@servidor.unam.mx
authors.forename: L J
authors.initials: LJ
authors.lastname: Méndez-Tovar
authors.forename: R
authors.initials: R
authors.lastname: Mondragón-González
authors.forename: P
authors.initials: P
authors.lastname: Manzano-Gayosso
authors.forename: R
authors.initials: R
authors.lastname: López-Martínez
authors.forename: F
authors.initials: F
authors.lastname: Hernández-Hernández
authors.forename: A
authors.initials: A
authors.lastname: Bonifaz
authors.forename: A
authors.initials: A
authors.lastname: Anides Fonseca
authors.forename: J
authors.initials: J
authors.lastname: Araiza
authors.forename: F
authors.initials: F
authors.lastname: Vega-López
mesh_terms: D000328:Adult; D000907:Antibodies, Bacterial / Q000097:blood / Q000276:immunology* / Q000302:isolation & purification; D000918:Antibody Specificity; D000942:Antigens, Bacterial / Q000276:immunology; D004797:Enzyme-Linked Immunosorbent Assay; D005260:Female; D006801:Humans; D007074:Immunoglobulin G / Q000097:blood / Q000145:classification / Q000276:immunology / Q000302:isolation & purification; D007075:Immunoglobulin M / Q000097:blood / Q000276:immunology / Q000302:isolation & purification; D007526:Isoelectric Point; D008297:Male; D008271:Mycetoma / Q000276:immunology* / Q000382:microbiology; D009617:Nocardia Infections / Q000097:blood / Q000276:immunology*
chemical_list: D000907:Antibodies, Bacterial; D000942:Antigens, Bacterial; D007074:Immunoglobulin G; D007075:Immunoglobulin M