Macrophage activation syndrome as a complication of dermatomyositis: A case report.

Background: Macrophage activation syndrome (MAS) can be a fatal complication of rheumatic disorders, which occurs most commonly in patients with systemic juvenile idiopathic arthritis or systemic lupus erythematosus. It has rarely been reported in patients with dermatomyositis. Here, we describe a fatal case of MAS that developed in an adult patient with dermatomyositis.

The beneficial effect of total glucosides of paeony on psoriatic arthritis links to circulating Tregs and Th1 cell function.

Total glycosides of peony (TGP) is a natural immuno-modulatory drug extracted from traditional Chinese herb peony. It has been approved by State Food and Drug Administration for the treatment of rheumatoid arthritis. However, data of TGP effect on psoriatic arthritis (PsA) is still scarce.