Journal
CLINICAL RHEUMATOLOGY
Volume 40, Issue 8, Pages 3079-3093Publisher
SPRINGER LONDON LTD
DOI: 10.1007/s10067-021-05679-7
Keywords
Ankylosing spondylitis; Genetics; HLA-B27; Pathogenesis; Radiographic axial spondyloarthritis; Risk factors
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Funding
- Novartis Pharmaceuticals Corporation
- Novartis Pharmaceuticals Corporation, East Hanover, New Jersey
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Radiographic axial spondyloarthritis, also known as ankylosing spondylitis (AS), is a chronic immune-mediated arthritis affecting the axial skeleton and peripheral joints. Apart from genetic factors, other factors such as intestinal inflammation may also play a role in the development of AS.
Radiographic axial spondyloarthritis (also known as ankylosing spondylitis [AS]) is a chronic immune-mediated arthritis characterized by inflammation of the axial skeleton, peripheral joints, and entheses. It is estimated that 1 in every 200 people are affected by AS, making it an important healthcare and socioeconomic issue. In this review, we aim to explore the current understanding of AS risk factors and provide a comprehensive update. Multiple search strings were used to identify articles of interest published in PubMed between January 1, 2013, and February 1, 2021. On the basis of the literature review and analysis, we present up-to-date information on the risk factors of developing AS and our viewpoints on disease onset and progression. Multiple genetic and nongenetic risk factors have been suggested in the onset of AS. HLA-B27 is known to have a strong association with the disease, but other genes have been implicated in disease development. Aside from genetics, other factors are thought to be involved; up to 70% of patients with AS have subclinical intestinal inflammation, suggesting that the origin of the disease may be in the gut. The exact mechanism by which AS onset begins is most likely complex and multifactorial.
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