RESUMO
To evaluate the expression of myeloid related proteins MRP8/MRP14 in the serum and synovial fluid of JRA and their correlation with local and systemic parameters of disease activity. Thirty JRA patients [Group I], and ten controls [Group II] were included in the study. The patients were subjected to thorough history taking and clinical examination. Synovial fluid aspiration was done from ten JRA patients. Laporatory investigations included CBC, ESR, RE, ASO, ANA, CRP, ALT, urine analysis and synovial fluid analysis for white blood cell count [SF-WBCs], lymphocytes%, and acute phase serum amyloid. MRP8/MRP14 was assessed with ELISA technique in serum and synovial fluid samples. Serum level of MRP8/MRP14 was elevated in Group I in comparison to up II. The serum and synovial levels of MRP8/MRP14 in Group I showed no significant inter-correlation. The MRP8/MRP14 in group I showed significant positive correlation with ESR, CRP, DAS, and A-SAA. The SF MRP8/MRP14 in group I showed positive significant correlation with SF-WBCs and A-SAA. The elevated MRP8/MRP14 in the serum and synovial fluids of patients with JRA showed a significant correlation with local and systemic disease activity parameters. So, it can be used to monitor disease activity and patient's response to treatment