RESUMEN
Objective To explore the diagnostic value and clinical significance of the combined detection of antinuclear antibody (ANA) and anti-nuclear antibody spectrum (ANAs) in systemic lupus erythematosus (SLE) .Methods 110 patients with SLE ,88 patients with other autoimmune diseases (AID) and 50 individuals with healthy physical examination were selected and detected se-rum ANA by using indirect immunofluorescence (IIF);the Western blot was adopted to detect the 15 items of ANAs .Results A-mong 110 cases of SLE ,the positive rates of serum ANA ,anti-ribonucleoprotein /Smith antibody (nRNP/Sm) ,anti-Smith antibody (Sm) ,anti-Sjogren′s syndrome A antibody (SSA) ,anti-Ro-52 antibody (Ro-52) ,anti-Sjogren′s syndrome B antibody (SSB) ,anti-scleroderma 70 antibody (Scl-70) ,anti-PM-Scl antibody (PM-Scl) ,anti-cytoplasmic group acyl-tRNA antibody (J0-1) ,anti-centro-mere antibodies (CENP B) ,anti-proliferative protein antibody (PCNA ) ,anti-double stranded DNA antibody (ds-DNA ) ,anti-nu-cleosome antibody (AnuA) ,anti-histone antibody (AHA) ,anti-ribosomal P protein antibody (ARPA) and anti-mitochondrial anti-body M2 subtype (AMA M2) were 98 .2% ,59 .1 % ,39 .1 % ,71 .8 % ,68 .2 % ,21 .8 % ,2 .7 % ,3 .6 % ,0 .9% ,9 .1% ,5 .5% , 44 .5% ,38 .2 % ,27 .3 % ,38 .2% and 15 .5% respectively ,the positive rate of above 16 kinds of autoantibody in the orther AID were64.8% ,14.8% ,0% ,37.5% ,42.0% ,11.4% ,9.1% ,0% ,5.7% ,9.1% ,1.1% ,2.3% ,1.1% ,1.1% ,5.7% and2.3% respec-tively ;ANA had the highest diagnostic sensitivity (98 .2% ) and low specificity (35 .2% ) for SLE ,the antibodies with higher speci-ficity in diagnosing SLE were anti-Sm antibody (100 .0% ) ,anti-ds-DNA antibody (97 .7% ) ,anti-AnuA antibody (99 .0% ) ,anti-AHA antibody (99 .0% ) ,anti-ARPA antibody (94 .3% ) and anti-PCNA antibody (98 .9% ) and the disease control group (50 .9% ) .In detecting ANA karyotype by IIF ,the maximum was nuclear particle type (43 .5% ) and the disease control group (50 .9% ) ,no statistically significant difference was found between them (P>0 .05) ,part of the ANA-negative patients have positive ANAs .Conclusion Multiple autoantibodies can be detected in the serum of the SLE patients .The combined detection of ANA and ANAs has important clinical significance for diagnosing and differentially diagnosing SLE .