Microparticles Expressing Myeloperoxidase and Complement C3a and C5a as Markers of Renal Involvement in Antineutrophil Cytoplasmic Antibody–associated Vasculitis

From the Division of Rheumatology, Department of Medicine, Department of Molecular Medicine and Surgery, Clinical Chemistry, and Renal Medicine, Karolinska Institutet; Rheumatology, Karolinska University Hospital; CLINTEC Karolinska University Hospital, Renal Medicine, Karolinska Institutet, Stockholm; Department of Medical Sciences, Uppsala University, Uppsala, Sweden; Department of Pediatrics, Medical Faculty, University of Niš, Niš, Serbia.