Details

Autor(en) / Beteiligte

• Alvarez-Rodriguez, Lorena
• Carrasco-Marin, Eugenio
• Lopez-Hoyos, Marcos
• Mata, Cristina
• Fernandez-Prieto, Lorena
• Ruiz-Soto, Maria
• Calvo, Jaime
• Rodriguez-Valverde, Vicente
• Ruiz, Teresa
• Blanco, Ricardo
• Corrales, Alfonso
• Martinez-Taboada, Victor Manuel

Titel

Interleukin-1RN gene polymorphisms in elderly patients with rheumatic inflammatory chronic conditions: Association of IL-1RN2/2 Genotype with polymyalgia rheumatica

Ist Teil von

• Human immunology, 2009, Vol.70 (1), p.49-54

Ort / Verlag

United States: Elsevier Inc

Erscheinungsjahr

2009

Link zum Volltext

Quelle

MEDLINE

Beschreibungen/Notizen

• Abstract The objective of this study was to investigate whether there is an association between IL1RN polymorphism and disease susceptibility for three age-related inflammatory conditions: polymyalgia rheumatica (PMR), giant cell arteritis (GCA), and elderly-onset rheumatoid arthritis (EORA). A tandem-repeat polymorphism within IL1RN intron 2 was analyzed in 139 PMR, 69 GCA, and 156 RA patients (75 with EORA) as well as in 437 healthy subjects, together with the in vitro production of IL-1β. Our results showed that the IL1RN*2/2 genotype was more frequent in PMR patients compared with controls ( p = 0.032, odds ratio = 1.785, 95% confidence interval = 1.047–3.044) and GCA patients ( p = 0.008, odds ratio = 4.661, 95% confidence interval = 1.352–16.065). We found no difference in the distribution of genotypes between PMR and EORA or between EORA and controls. However, the frequency of the IL-1RN*2/2 genotype had a tendency to be higher in patients with EORA compared with young onset RA. The presence of IL1RN*1 or IL1RN*2 allele was not associated with severity of the disease in PMR and GCA patients and did not influence the production of IL-1β. In conclusion, the IL1RN*2 polymorphism in a homozygous state was associated with an increased susceptibility to PMR and may give some clues for a differential therapy with GCA.