title: Salazosulfapyridine-induced remission of Felty's syndrome along with significant reduction in neutrophil-bound immunoglobulin G.
abstract: Felty's syndrome is characterized by neutropenia, splenomegaly, and leg ulcers in patients with rheumatoid arthritis. The pathogenesis of the neutropenia is an immune-mediated process that involves immune complexes, antineutrophil antibodies, and abnormal white cell kinetics. We prescribed salazosulfapyridine to a 65-year-old woman with this syndrome. The neutropenia improved along with a reduction in neutrophil-bound IgG, demonstrated by flow cytometric analysis. Salazosulfapyridine may be of benefit for the treatment of Felty's syndrome, and flow cytometry can be used to monitor disease activity and therapeutic efficacy.
authors.affiliation: Third Department of Internal Medicine, Gunma University School of Medicine, Maebashi, Japan.
authors.forename: Keiko
authors.initials: K
authors.lastname: Ishikawa
authors.forename: Yoshito
authors.initials: Y
authors.lastname: Tsukada
authors.forename: Shigeo
authors.initials: S
authors.lastname: Tamura
authors.forename: Yoriaki
authors.initials: Y
authors.lastname: Kaneko
authors.forename: Takashi
authors.initials: T
authors.lastname: Kuroiwa
authors.forename: Kazue
authors.initials: K
authors.lastname: Ueki
authors.forename: Tomoko
authors.initials: T
authors.lastname: Sugiura
authors.forename: Yoshihisa
authors.initials: Y
authors.lastname: Nojima
mesh_terms: D000368:Aged; D018501:Antirheumatic Agents / Q000008:administration & dosage*; D005258:Felty Syndrome / Q000188:drug therapy* / Q000276:immunology; D005260:Female; D005434:Flow Cytometry; D006801:Humans; D007074:Immunoglobulin G / Q000378:metabolism; D009504:Neutrophils / Q000276:immunology*; D012074:Remission Induction; D012460:Sulfasalazine / Q000008:administration & dosage*
chemical_list: D018501:Antirheumatic Agents; D007074:Immunoglobulin G; D012460:Sulfasalazine