PMID- 32340698 OWN - NLM STAT- MEDLINE DCOM- 20211008 LR - 20211008 IS - 1558-3163 (Electronic) IS - 0889-857X (Linking) VI - 46 IP - 2 DP - 2020 May TI - What Does Human Leukocyte Antigen B27 Have to Do with Spondyloarthritis? PG - 225-239 LID - S0889-857X(20)30002-8 [pii] LID - 10.1016/j.rdc.2020.01.002 [doi] AB - Human leukocyte antigen (HLA) B27 is the key laboratory parameter for axial spondyloarthritis (axSpA). Its prevalence is variable across different geographic zones and ethnicities, and often mirrors the prevalence of axSpA. HLA-B27 plays a role in axSpA physiopathology. It is correlated with spondyloarthritis phenotype with a consistent positive association with family history, early disease onset, shorter diagnostic delay, hip involvement, and acute anterior uveitis. HLA-B27 has a pivotal role in many referral strategies. However, these strategies were developed in European populations and need to be evaluated in populations with lower HLA-B27 background prevalence, and where additional parameters might be needed. CI - Copyright (c) 2020 Elsevier Inc. All rights reserved. FAU - Fahed, Hanna AU - Fahed H AD - Department of Rheumatology, Saint-Joseph University, Hotel-Dieu de France Hospital, BP 166830, Achrafieh, Beirut, Lebanon. FAU - Mauro, Daniele AU - Mauro D AD - Division of Rheumatology, Department of Precision Medicine, University of Campania "Luigi Vanvitelli", Via Sergio Pansini 5, Napoli 80131, Italy. FAU - Ciccia, Francesco AU - Ciccia F AD - Division of Rheumatology, Department of Precision Medicine, University of Campania "Luigi Vanvitelli", Via Sergio Pansini 5, Napoli 80131, Italy. FAU - Ziade, Nelly R AU - Ziade NR AD - Department of Rheumatology, Saint-Joseph University, Hotel-Dieu de France Hospital, BP 166830, Achrafieh, Beirut, Lebanon. Electronic address: nelly.zoghbi@usj.edu.lb. LA - eng PT - Journal Article PT - Review PL - United States TA - Rheum Dis Clin North Am JT - Rheumatic diseases clinics of North America JID - 8708093 RN - 0 (HLA-B27 Antigen) SB - IM MH - *HLA-B27 Antigen MH - Humans MH - Spondylarthritis/physiopathology MH - *Spondylarthropathies/physiopathology OTO - NOTNLM OT - Diagnosis OT - Disease phenotype OT - Genetics OT - HLA-B27 OT - Prognosis OT - Spondyloarthritis COIS- Disclosure The authors have nothing to disclose. EDAT- 2020/04/29 06:00 MHDA- 2021/10/09 06:00 CRDT- 2020/04/29 06:00 PHST- 2020/04/29 06:00 [entrez] PHST- 2020/04/29 06:00 [pubmed] PHST- 2021/10/09 06:00 [medline] AID - S0889-857X(20)30002-8 [pii] AID - 10.1016/j.rdc.2020.01.002 [doi] PST - ppublish SO - Rheum Dis Clin North Am. 2020 May;46(2):225-239. doi: 10.1016/j.rdc.2020.01.002.