Biomaterial Database

Non-HLA-B27 genetic factors in HLA-B27 associated diseases. 1996

T E Feltkamp

Arthron, Amsterdam, Netherlands.

Family and twin studies showed that besides HLA-B27 other genetic factors are of significance for the pathogenesis of ankylosing spondylitis, reactive arthritis or acute anterior uveitis. There are up to now no strong indications that any subtype of B27 is especially associated with these diseases. Also the indications that B2703 and B2706 are protective should be further substantiated. HLA-B27/HLA-B60 heterozygotes have a three times higher risk to develop ankylosing spondylitis as persons with another B type opposite B27. Haplotype studies made it unlikely that the other genetic factors are situated on chromosome 6p. Studies on 23 other genetic marker systems were all negative in this respect.

UI	MeSH Term	Description	Entries
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D012307	Risk Factors	An aspect of personal behavior or lifestyle, environmental exposure, inborn or inherited characteristic, which, based on epidemiological evidence, is known to be associated with a health-related condition considered important to prevent.	Health Correlates,Risk Factor Scores,Risk Scores,Social Risk Factors,Population at Risk,Populations at Risk,Correlates, Health,Factor, Risk,Factor, Social Risk,Factors, Social Risk,Risk Factor,Risk Factor Score,Risk Factor, Social,Risk Factors, Social,Risk Score,Score, Risk,Score, Risk Factor,Social Risk Factor
D012680	Sensitivity and Specificity	Binary classification measures to assess test results. Sensitivity or recall rate is the proportion of true positives. Specificity is the probability of correctly determining the absence of a condition. (From Last, Dictionary of Epidemiology, 2d ed)	Specificity,Sensitivity,Specificity and Sensitivity
D013167	Spondylitis, Ankylosing	A chronic inflammatory condition affecting the axial joints, such as the SACROILIAC JOINT and other intervertebral or costovertebral joints. It occurs predominantly in young males and is characterized by pain and stiffness of joints (ANKYLOSIS) with inflammation at tendon insertions.	Ankylosing Spondylitis,Bechterew Disease,Marie-Struempell Disease,Rheumatoid Spondylitis,Spondylarthritis Ankylopoietica,Ankylosing Spondylarthritis,Ankylosing Spondyloarthritis,Bechterew's Disease,Spondylitis Ankylopoietica,Spondyloarthritis Ankylopoietica,Ankylosing Spondylarthritides,Ankylosing Spondyloarthritides,Bechterews Disease,Marie Struempell Disease,Spondylarthritides, Ankylosing,Spondylarthritis, Ankylosing,Spondylitis, Rheumatoid,Spondyloarthritides, Ankylosing,Spondyloarthritis, Ankylosing
D014606	Uveitis, Anterior	Inflammation of the anterior uvea comprising the iris, angle structures, and the ciliary body. Manifestations of this disorder include ciliary injection, exudation into the anterior chamber, iris changes, and adhesions between the iris and lens (posterior synechiae). Intraocular pressure may be increased or reduced.	Anterior Uveitides,Anterior Uveitis,Uveitides, Anterior
D015796	HLA-B27 Antigen	A specific HLA-B surface antigen subtype. Members of this subtype contain alpha chains that are encoded by the HLA-B*27 allele family.	HLA Class I Histocompatibility Antigen, B-27 alpha Chain,HLA-B27,Antigen, HLA-B27,HLA B27 Antigen,HLA Class I Histocompatibility Antigen, B 27 alpha Chain
D016918	Arthritis, Reactive	An aseptic, inflammatory arthritis developing secondary to a primary extra-articular infection, most typically of the GASTROINTESTINAL TRACT or UROGENITAL SYSTEM. The initiating trigger pathogens are usually SHIGELLA; SALMONELLA; YERSINIA; CAMPYLOBACTER; or CHLAMYDIA TRACHOMATIS. Reactive arthritis is strongly associated with HLA-B27 ANTIGEN.	Arthritis, Postinfectious,Arthritis, Post-Infectious,Post-Infectious Arthritis,Postinfectious Arthritis,Reactive Arthritis,Reiter Disease,Reiter Syndrome,Reiter's Disease,Reiter's Syndrome,Arthritis, Post Infectious,Post Infectious Arthritis,Post-Infectious Arthritides,Postinfectious Arthritides,Reactive Arthritides,Reiters Disease,Reiters Syndrome