The allele and genotype frequencies for the investigated SNPs in this Caucasian cohort were comparable to those reported for the European individuals in the 1000 genes project (Figure 1), with allele and genotype distribution independent of HLA B27
status (all p>0.2).
Spondyloarthropathy is genetically linked (90% of cases), and the strongest contributing factor is the HLA B27
We are obliged to Rheumatologists and orthopaedic surgeons for sending us patients for HLA B27
Mcmichael, "Structural homologies between two HLA B27-restricted peptides suggest residues important for interaction with HLA B27
," International Immunology, vol.
It has a strong genetic predisposition with a high proportion of patients carrying the HLA B27
Typically, the prevalence of AS in a population reflects the associated prevalence of HLA B27
gene in that population.1
Os criterios de exclusao sao a presenca de psoriase no paciente ou parente de primeiro grau; artrite em menino HLA B27
apos os seis anos; espondilite anquilosante (EA), ARE, sacroiliite (SII) em Doenca Inflamatoria Intestinal (DII), Artrite Reativa, uveite anterior aguda ou historia de alguma dessas desordens em parente de primeiro grau; e presenca de FR positivo em duas ocasioes com tres meses de diferenca.
Occult blood in stool, urinary microscopy, brucella, anti-HCV, rheumatoid factor, HLA B27
, anti-nuclear antibody (ANA), anti-neutrophilic cytoplasmic antibody (ANCA), and extractable nuclear antigens panel were negative.
was positive in 100% of the patients and positive family history was present in 12 % of the patients.
Her HLA B27
was negative and she was treated with methotrexate.
Vaara et al., "Molecular mimickry between HLA B27
and Yersinia, Salmonella, Shigella and Klebsiella within the same region of HLA [alpha]1-helix," Clinical and Experimental Immunology, vol.