Comparison of five methods for the detection of antiribosomal P protein antibody
Braz. j. med. biol. res
;
27(3): 637-43, Mar. 1994. tab
Artigo
em Inglês
| LILACS
| ID: lil-148936
RESUMO
1. We have compared the sensitivity and specificity of immunofluorescence, counterimmunoelectrophoresis, immunodiffusion, Western blotting and ELISA for the detection of antiribosomal P protein antibodies using 153 lupus sera. 2. Western blotting and ELISA were the 2 most sensitive and specific techniques for the detection of these antibodies. In contrast, cytoplasmic immunofluorescence was observed in only one third of the anti-P-positive patients. Immunodiffusion and counterimmunoelectrophoresis, although highly specific, detecting 14 per cent and 29 per cent of all anti-P-positive sera by Western blotting, were the least sensitive tests. 3. The frequency of anti-P in lupus patients, as detected by Western blotting analysis was 18 per cent . The most frequently observed antibody in anti-P sera was anti-Ro/SSA (39 per cent ). Anti-P antibodies were also detected in the sera of 3 patients with negative nuclear immunofluorescence. 4. Anti-P is an additional serological marker for systemic lupus erythematosus and Western blotting is the method of choice for detecting this antibody due to the limited availability of the fusion protein in Brazil
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Índice:
LILACS (Américas)
Assunto principal:
Proteínas Ribossômicas
/
Autoanticorpos
/
Lúpus Eritematoso Sistêmico
Tipo de estudo:
Estudo diagnóstico
Limite:
Humanos
Idioma:
Inglês
Revista:
Braz. j. med. biol. res
Assunto da revista:
Biologia
/
Medicina
Ano de publicação:
1994
Tipo de documento:
Artigo
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