Abstract
Psoriatic arthritis is a heterogeneous chronic autoimmune disorder characterized principally by skin lesions, arthritis, dactylitis and enthesitis. The exact etiology of the disease is yet to be discovered, with genetic predisposition alongside environmental factors being a well-known theory. In recent years, new discoveries have emphasized the role of gut microbiome in perpetuating inflammation in spondylarthritis. The exact mechanism through which dysbiosis underlies the pathophysiology of psoriatic arthritis is not defined. One of the current areas of focus in rheumatic research with new studies emerging annually is the link between microbiome and psoriatic arthritis. In this review, we synthesized the recent knowledge on intestinal microbiome and psoriatic arthritis. We screened two databases for articles, PubMed and Medline, using the following keywords: “microbiome”, “microbiota” and “psoriatic arthritis”. We described the current expertise on diversity and composition of gut microbiome in psoriatic arthritis, comparing the results with other inflammatory diseases. In the future, preventing the dysbiosis process that leads to the development of psoriatic arthritis could open the door to new therapeutic modalities. Moreover, fecal microbiota transplantation and probiotics’ benefits in modulating the gut microbiome are being intensively researched at the moment.
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