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Rev. chil. reumatol ; 25(3): 119-122, 2009. ilus
Article in Spanish | LILACS | ID: lil-563798

ABSTRACT

La enfermedad antimembrana basal glomerular (anti-MBG) es una condición que se manifiesta clínicamente como glomerulonefritis rápidamente progresiva y hemorragia alveolar, también llamada Síndrome Riñón- Pulmón. Se asocia a la presencia de autoanticuerpos dirigidos contra el colágeno tipo IV de la membrana basal glomerular. Las vasculitis sistémicas asociadas a ANCA también pueden manifestarse como Síndrome Riñón-Pulmón, cuadro clínico a veces indistinguible de la enfermedad anti-MBG. La concomitancia de ANCA y anticuerpos anti-MBG en el Síndrome Riñón-Pulmón es del orden de un 30 por ciento, según distintos reportes de la literatura. El perfil clínico, el pronóstico y el rol fisiopatológico de cada anticuerpo en este grupo de pacientes todavía son materia de investigación. El mecanismo patogénico inicial parece ser el daño mediado por ANCA, que puede inducir la aparición de anticuerpos anti-MBG, los que perpetúan el daño en el glomérulo.


Anti-glomerular basement membrane (anti-MBG) disease is a condition that is manifested clinically as rapidly progressive glomerulonephritis and alveolar hemorrhage, also known as Pulmonary-Renal Syndrome. It is associated with the presence of autoantibodies directed against type IV collagen of the glomerular basement membrane. Systemic vasculitis associated with ANCA may also manifest as Pulmonary-Renal Syndrome, sometimes clinically indistinguishable from the anti-MBG disease.The concomitance of ANCA and anti-MBG antibodies in the Pulmonary-Renal Syndrome is about 30 percent, according to various reports in literature. The clinical profile, prognosis and physiopathologic roles of each antibody in this group of patients is still under investigation. The pathogenic mechanism appears to be the initial damage mediated by ANCA, which may induce the appearance of anti-MBG, those who perpetuate the glomerulus damage.


Subject(s)
Humans , Female , Middle Aged , Anti-Glomerular Basement Membrane Disease/complications , Anti-Glomerular Basement Membrane Disease/immunology , Lung Diseases/complications , Lung Diseases/immunology , Kidney Diseases/complications , Kidney Diseases/immunology , Antibodies, Antineutrophil Cytoplasmic , Kidney Glomerulus/immunology , Kidney Glomerulus/pathology , Lung/immunology , Lung/pathology , Syndrome
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