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Träfflista för sökning "WFRF:(Pascual Salcedo Dora) srt2:(2006-2009)"

Sökning: WFRF:(Pascual Salcedo Dora) > (2006-2009)

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2.
  • Orozco, Gisela, et al. (författare)
  • Association of STAT4 with rheumatoid arthritis : a replication study in three European populations
  • 2008
  • Ingår i: Arthritis and Rheumatism. - : Wiley. - 0004-3591 .- 1529-0131. ; 58:7, s. 1974-1980
  • Tidskriftsartikel (refereegranskat)abstract
    • OBJECTIVE: This study was undertaken to investigate the previously reported association of the STAT4 polymorphism rs7574865 with rheumatoid arthritis (RA) in 3 different European populations from Spain, Sweden, and The Netherlands, comprising a total of 2,072 patients and 2,474 controls. METHODS: Three different cohorts were included in the study: 923 RA patients and 1,296 healthy controls from Spain, 273 RA patients and 285 healthy controls from Sweden, and 876 RA patients and 893 healthy controls from The Netherlands. DNA from patients and controls was obtained from peripheral blood. Samples were genotyped for the STAT4 single-nucleotide polymorphism rs7574865 using a TaqMan 5'-allele discrimination assay. The chi-square test was performed to compare allele and genotype distributions. Odds ratios (ORs) and 95% confidence intervals (95% CIs) were calculated. RESULTS: We observed a significantly increased frequency of the minor T allele in RA patients compared with healthy controls in the Spanish population (24.8% versus 20.8%; P = 0.001, OR 1.26 [95% CI 1.09-1.45]). This association was confirmed in both the Swedish population (P = 0.03, OR 1.35 [95% CI 1.03-1.77]) and the Dutch population (P = 0.03, OR 1.45 [95% CI 1.21-1.73]). The overall P value for all 3 populations was 9.79 x 10(-6) (OR 1.25 [95% CI 1.13-1.37]). No association between rs7574865 and the presence of rheumatoid factor or anti-cyclic citrullinated peptide autoantibodies was observed. A meta-analysis of all published STAT4 associations revealed an OR of 1.25 (95% CI 1.19-1.33) (P = 1 x 10(-5)). CONCLUSION: Our findings indicate an association between the STAT4 polymorphism rs7574865 and RA in 3 different populations, from Spain, Sweden, and The Netherlands, thereby confirming previous data.
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4.
  • Orozco, Gisela, et al. (författare)
  • Study of functional variants of the BANK1 gene in rheumatoid arthritis
  • 2009
  • Ingår i: Arthritis and Rheumatism. - : Wiley. - 0004-3591 .- 1529-0131. ; 60:2, s. 372-379
  • Tidskriftsartikel (refereegranskat)abstract
    • OBJECTIVE: To investigate 1 functional (rs17266594) and 2 potentially functional (rs10516487 and rs3733197) BANK1 variants, which were previously identified as systemic lupus erythematosus (SLE) susceptibility markers, to test whether they are associated with rheumatoid arthritis (RA). METHODS: Four different cohorts were included in the study: 1,080 RA patients and 1,368 healthy controls from Spain, 278 RA patients and 568 healthy controls from Sweden, 288 RA patients and 287 healthy controls from Argentina, and 288 RA patients and 288 healthy controls from Mexico. Samples were genotyped for BANK1 single-nucleotide polymorphisms (SNPs) using a TaqMan 5'-allele discrimination assay. Statistical analysis comparing allele and genotype distributions was performed with the chi-square test. RESULTS: We did not find a significant association between RA and the rs10516487 and rs17266594 BANK1 polymorphisms. However, there was an increase in the major alleles among RA patients. Similarly, for rs3733197, there was an increase in the major allele among patients in every cohort. Nevertheless, this skewing reached statistical significance in the Spanish (P = 0.01, odds ratio [OR] 1.17 [95% confidence interval (95% CI) 1.03-1.32]) and Argentinean (P = 0.04, OR 1.31 [95% CI 1.00-1.72]) populations. We found a significant association of rs10516487 (P = 0.005, OR 1.15 [95% CI 1.04-1.28]) and rs3733197 (P = 0.0009, OR 1.17 [95% CI 1.07-1.29]) with RA in the pooled analysis. In a 3-SNP haplotype analysis, we found that the major TGG haplotype was significantly associated with RA (P = 0.005, OR 1.14 [95% CI 1.04-1.25]). In addition, we found a common CAA haplotype that was protective against RA (P = 0.0004, OR 0.82 [95% CI 0.74-0.92]). CONCLUSION: These results suggest that BANK1 SNPs and haplotypes may contribute to RA susceptibility with a low risk.
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5.
  • Rueda, Blanca, et al. (författare)
  • Analysis of IRF5 gene functional polymorphisms in rheumatoid arthritis
  • 2006
  • Ingår i: Arthritis and Rheumatism. - : Wiley. - 0004-3591 .- 1529-0131. ; 54:12, s. 3815-3819
  • Tidskriftsartikel (refereegranskat)abstract
    • OBJECTIVE: Recent findings suggest that interferon regulatory factor 5 (IRF-5) may play a crucial role in several cellular processes, including the transcription of genes for inflammatory cytokines. Two genetic variants of the IRF5 gene (rs2004640 in exon 1 and rs2280714 in the 3'-untranslated region) have been shown to exert functional modifications affecting IRF5 messenger RNA splicing and expression, and have been associated with genetic predisposition to systemic lupus erythematosus (SLE). The aim of this study was to analyze the possible contribution of the IRF5 gene to the predisposition to rheumatoid arthritis (RA). METHODS: Three case-control cohorts from Spain (724 RA patients and 542 healthy controls), Sweden (281 RA patients 474 healthy controls), and Argentina (284 RA patients and 286 healthy controls) were independently analyzed. Genotyping for IRF5 rs2004640 and rs2280714 was performed using a TaqMan 5' allele-discrimination assay. RESULTS: In the 3 cohorts studied, no statistically significant differences in allele or genotype frequencies of the rs2004640 and rs2280714 IRF5 polymorphisms were observed between RA patients and controls. Accordingly, haplotype analysis revealed that none of the IRF5 haplotypes was associated with genetic predisposition to RA. CONCLUSION: Our results suggest that the IRF5 functional polymorphisms analyzed do not seem to be implicated in genetic susceptibility to RA.
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