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Rev. bras. reumatol ; 54(1): 21-26, Jan-Feb/2014. tab
Article in Portuguese | LILACS | ID: lil-704291

ABSTRACT

Objetivo: Determinar a frequência de anticorpos antiparvovírus B19 (B19) em pacientes com artrite reumatoide (AR) e lúpus eritematoso sistêmico (LES), e a possível correlação da soropositividade anti-B19 com a atividade das doenças e a qualidade de vida. Pacientes e métodos: Foram utilizadas amostras séricas de 57 pacientes com AR, 45 com LES e 65 controles sadios. Empregou-se protocolo com dados clínicos, os índices Disease Activity Score 28 (DAS 28), Systemic Lupus Erythematosus Disease Activity Index (SLEDAI) e Health Assessment Questionnaire (HAQ). Realizou-se a sorologia anti-B19 por ensaio imunoenzimático (ELISA). Resultados: A média de idade dos pacientes foi de 42,74 14,09 anos, e a dos controles foi de 38,38 13,42 anos.Tinham doença ativa 79 (77,5%) pacientes, e doença inativa 23 (22,5%).Anti-B19 (IgG) foi reagente em 49 (86,0%) IC 95% (77,0 - 95,0)% pacientes com AR, em 38 (84,4%) IC 95% (73,9 - 95,0)% com LES e em 40 (61,5%) IC 95% (49,7 - 73,4)% controles (p = 0,002). Anti-B19 (IgM) foi reagente em 3 (5,3%) IC 95% (0,0 - 11,1)% pacientes com AR, em 7 (15,6%) IC 95% (5,0 - 26,2)% pacientes com LES e em 1 (1,5%) IC 95% (0,0 - 4,5)% controle (p = 0,011). Não houve correlação da reatividade anti-B19 com a atividade das doenças, os índices DAS 28, SLEDAI e HAQ. Conclusão: O presente estudo demonstrou que a população avaliada está exposta à infecção pelo B19, o que demanda atenção com suas manifestações, principalmente entre os pacientes que apresentam maior risco, como os imunossuprimidos. .


Objective: To determine the frequency of antiparvovírus B19 (B19) antibodies in patients with rheumatoid arthritis (RA) and systemic lupus erythematosus (SLE), and the possible correlation of anti-B19 seropositivity with disease activity and quality of life. Patients and methods: Serum samples from 57 patients with RA, 45 with SLE and 65 healthy controls were used. We applied protocol with clinical data, and the Disease Activity Score 28 (DAS 28), Systemic Lupus Erythematosus Disease Activity Index (SLEDAI) and Health Assessment Questionnaire (HAQ) indexes. The anti-B19 serology was done by enzyme-linked immunosorbent assay (ELISA). Results: The mean age of patients was 42.74 ± 14.09 years, and of controls was 38.38 ± 13.42 years. 79 patients had active disease (77.5%), and 23 had inactive disease (22.5%). Anti-B19 (IgG) was positive in 49 (86.0%; CI 95% 77.0 - 95.0) RA patients, 38 (84.4%; CI 95% 73.9 - 95.0) SLE patients, and 40 (61.5%; CI 95% 49.7 - 73.4) controls (p = 0.002). Anti-B19 (IgM) was positive in 3 (5.3%; CI 95% 0.0 - 11.1) RA patients, in 7 (15.6%; CI 95% 5.0 - 26,2) SLE patients, and in 1 (1.5%; CI 95% 0.0 - 4.5) control (p = 0.011).There was no correlation of anti-B19 reactivity with disease activity and with DAS 28, HAQ and SLEDAI indexes. Conclusion: This study demonstrated that the studied population is exposed to infection by B19, which demands attention with its manifestations, especially among patients at greatest risk, such as those immunosuppressed. .


Subject(s)
Adolescent , Adult , Aged , Humans , Middle Aged , Young Adult , Antibodies, Viral/blood , Arthritis, Rheumatoid/blood , Immunoglobulin G/blood , Immunoglobulin M/blood , Lupus Erythematosus, Systemic/blood , /immunology
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