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Healthy individuals also produce a type of self-reactive antibodies — termed IgM ANCA — present in people with ANCA-associated vasculitis (AAV), a study has found. While low, the levels in healthy people are comparable with those in AAV patients whose disease is less active. The antibodies’ role is still…

ANCA-associated vasculitis (AAV) can cause kidney damage without affecting the glomeruli, the filtering unit of the kidneys, a case report suggests. Doctors should consider this possibility to avoid a late diagnosis and irreversible kidney damage, especially if anti-neutrophil cytoplasm antibodies (ANCAs) against myeloperoxidase (MPO) are present, according to…

When autoimmune diseases such as ANCA-associated vasculitis are found at the same time as cancer, properly diagnosing and treating them alongside the cancer is crucial to ensuring best outcomes for the patient, a case report suggests. The study, “Simultaneous Occurrence of Sarcoidosis and Anti-neutrophil Cytoplasmic Antibody-associated Vasculitis in a…

Levels of rheumatoid factor — an antibody against healthy tissue found in some autoimmune diseases — appear to separate eosinophilic granulomatosis with polyangiitis (EGPA) patients into two subtypes with different disease mechanisms, a study suggests. “Subtypes in eosinophilic granulomatosis with polyangiitis classified according to rheumatoid…