New Test May Help Determine Disease Activity in GPA Patients, Study Reports
A new test measuring the relative abundance of immunoglobulin G4 (IgG4) RNA could be an indicator of granulomatosis with polyangiitis (GPA) activity and distinguish active disease from remission, a study suggests. The study, “IgG4:IgG RNA ratio differentiates active disease from remission in granulomatosis with polyangiitis: a…