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  • Title: Clinical outcome in anti-neutrophil cytoplasmic antibody-associated vasculitis and gene variants of 11β-hydroxysteroid dehydrogenase type 1 and the glucocorticoid receptor.
    Author: Hessels AC, Tuin J, Sanders JSF, Huitema MG, van Rossum EFC, Koper JW, van Beek AP, Stegeman CA, Rutgers A.
    Journal: Rheumatology (Oxford); 2019 Mar 01; 58(3):447-454. PubMed ID: 30445609.
    Abstract:
    OBJECTIVES: We aimed to investigate whether five potential functional haplotypes of the glucocorticoid receptor (GR) gene and a single-nucleotide polymorphism of 11β-hydroxysteroid dehydrogenase type 1 (HSD11B1) are associated with clinical outcome in ANCA-associated vasculitis. METHODS: Patients diagnosed with ANCA-associated vasculitis (n = 241) were genotyped for five polymorphisms of the GR gene and one polymorphism of the HSD11B1 gene. GR gene haplotypes were predicted based on genotyping results. Relapse-free survival, mortality, renal survival, metabolic adverse events and infections were compared between carriers and non-carriers of GR haplotypes and the HSD11B1 genotype. RESULTS: Carriers of haplotype 4 (ER22/23EK + 9β+TthIII1) of GR had a significantly higher 5-year mortality risk [hazard ratio (HR) 4.5 (95% CI 1.6, 12.8)] and had a higher risk of developing end-stage renal disease [HR 7.4 (95% CI 1.9, 28.7)]. Carriers of a minor variant of HSD11B1 more frequently experienced relapse [HR 2.5 (95% CI 1.5, 4.1)] except if they also carried haplotype 1 (BclI) of GR. Homozygous carriers of haplotype 1 had a higher risk of developing dyslipidaemia [HR 4.1 (95% CI 1.8, 9.6)]. The occurrence of infections did not differ between GR haplotypes and HSD11B1 genotypes. CONCLUSION: Haplotypes 1 and 4 of GR and a polymorphism of the HSD11B1 gene were associated with clinically relevant inflammatory and metabolic outcomes in ANCA-associated vasculitis.
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