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http://purl.uniprot.org/citations/21360006http://www.w3.org/1999/02/22-rdf-syntax-ns#typehttp://purl.uniprot.org/core/Journal_Citation
http://purl.uniprot.org/citations/21360006http://www.w3.org/2000/01/rdf-schema#comment"The aim of this study is to investigate the association of HLA-A, B and HLA-DR gene expression and to assess an association of additional HLA antigens besides HLA-B27 in south Tunisian patients with spondyloarthritis (SpA). Eighty-five patients diagnosed with ankylosing spondylitis (AS, n=68) and reactive arthrithis (ReA, n=17) were selected and compared with 100 healthy controls (HC). HLA class I antigens were typed serologically using microlymphocytotoxicity technique. HLA-DRB1* alleles were studied by polymerase chain reaction amplification with sequence-specific primers. The significance of differences between patients and controls was tested by chi-square analysis. We found significantly increased frequencies of HLA-A3 (30.6%; pC=0.04; OR=2.95), HLA-B27 (62.35%; pC=4.10(-17), OR=53.55), and HLA-DRB1*15 (17.2%; pC=0.026; RR=2.58) alleles in SpA patients compared to HC. The most frequent and strongest association was observed for HLA-B27 in AS (pC=6.6 ×10(-16), OR=52.23). When AS and ReA patients were analysed separately, HLA-DRB1*15 and HLA-A3 were increased only in AS (pC=0.01, OR=2.99 and pC=0.03, OR=3.14, respectively). In ReA patients, HLA-DRB1*04 (p=0.033, pC=NS, OR=2.89) was found to be the most common allele. By analysing the HLA-B27-negative subgroup, HLA-A3 and HLA-DRB1*15 expression was found to be dependent on the presence of HLA-B27. HLA-B27 expression was higher in male (45/53; 85%) as compared to female (8/53; 15%) patients (p=0.03). Apart from HLA-B27, HLA-A3 and HLA-DRB1*15 are the MHC class I and II alleles found most frequent in Tunisian patients with AS, whereas HLA-DRB1*04 was found most frequent in ReA patients. HLA-B27 is more frequent in male than in female patients."xsd:string
http://purl.uniprot.org/citations/21360006http://purl.org/dc/terms/identifier"doi:10.1007/s10067-011-1705-6"xsd:string
http://purl.uniprot.org/citations/21360006http://purl.uniprot.org/core/author"Frikha F."xsd:string
http://purl.uniprot.org/citations/21360006http://purl.uniprot.org/core/author"Mahfoudh N."xsd:string
http://purl.uniprot.org/citations/21360006http://purl.uniprot.org/core/author"Makni H."xsd:string
http://purl.uniprot.org/citations/21360006http://purl.uniprot.org/core/author"Hammami A."xsd:string
http://purl.uniprot.org/citations/21360006http://purl.uniprot.org/core/author"Sellami S."xsd:string
http://purl.uniprot.org/citations/21360006http://purl.uniprot.org/core/author"Gdoura R."xsd:string
http://purl.uniprot.org/citations/21360006http://purl.uniprot.org/core/author"Hakim F."xsd:string
http://purl.uniprot.org/citations/21360006http://purl.uniprot.org/core/author"Younes M."xsd:string
http://purl.uniprot.org/citations/21360006http://purl.uniprot.org/core/author"Bahloul Z."xsd:string
http://purl.uniprot.org/citations/21360006http://purl.uniprot.org/core/author"Kammoun A."xsd:string
http://purl.uniprot.org/citations/21360006http://purl.uniprot.org/core/author"Baklouti S."xsd:string
http://purl.uniprot.org/citations/21360006http://purl.uniprot.org/core/author"Bargaoui N."xsd:string
http://purl.uniprot.org/citations/21360006http://purl.uniprot.org/core/author"Fourati H."xsd:string
http://purl.uniprot.org/citations/21360006http://purl.uniprot.org/core/author"Gaddour L."xsd:string
http://purl.uniprot.org/citations/21360006http://purl.uniprot.org/core/author"Siala M."xsd:string
http://purl.uniprot.org/citations/21360006http://purl.uniprot.org/core/author"Rihl M."xsd:string
http://purl.uniprot.org/citations/21360006http://purl.uniprot.org/core/date"2011"xsd:gYear
http://purl.uniprot.org/citations/21360006http://purl.uniprot.org/core/name"Clin Rheumatol"xsd:string
http://purl.uniprot.org/citations/21360006http://purl.uniprot.org/core/pages"1069-1073"xsd:string
http://purl.uniprot.org/citations/21360006http://purl.uniprot.org/core/title"Association and frequency of HLA-A, B and HLA-DR genes in south Tunisian patients with spondyloarthritis (SpA)."xsd:string
http://purl.uniprot.org/citations/21360006http://purl.uniprot.org/core/volume"30"xsd:string
http://purl.uniprot.org/citations/21360006http://www.w3.org/2004/02/skos/core#exactMatchhttp://purl.uniprot.org/pubmed/21360006