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ANA and other ABs
| Question | Answer |
|---|---|
| Anti-ds-DNA (native DNA) | SLE only (60%); an indicatore of disease activity and lupus nephritis |
| Anti histone | Drug induced lupus (95%) |
| Anti centromer | CREST |
| Anti-SM | SLE only (25-30%) |
| Anti Ro (SSA) | Sjogren; neonatal lupus |
| Anti LA (SSB) | Sjogren |
| Anti RNP | Mixed Connective Tissue Disease 100% |
| Anti glomerular basement membrane antibody | Goodpasture |
| Scl-70 (anti-DNA topoisomerase 1): | progressive systemic sclerosis; anti-centromere more in the localized form (CREST) |
| c-ANCA | Wegener |
| p-ANCA | PAN and Churg Strauss syndrome and Primary Sclerosing Cholangitis; Ulcerative colitis (50-80%) |
| Anti-Jo1 | inflammatory myopathies |
| Anti Smith antibodies | SLE specific |
| HLA-B27 | Ankylosing spondylitis; also reactive and psoriatic arthritis |
| DR4 and DR1 | Rheumatoid arthritis |
| DR3 | Sjogren, SLE and also RA |