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Disease activity is more associated with IL-1 than with IL-6 in patients with rheumatoid arthritis

Abstract: Interleukin-1 receptor antagonist (IL-1ra) concentration reflects and is proportional to IL-1 production. Both IL-1 and IL-6 are involved in the pathogenesis of rheumatoid arthritis (RA). However, the relationship of serum levels of these two cytokines to each other in RA patients is not well-understood. In this study, our objective was to analyze the possible linear correlation between IL-1ra and IL-6 in patients with RA, and how both are related to the inflammatory activity of the disease. IL-6 and IL-1ra levels were measured in 407 patients with RA. Linear regression and partial correlations were conducted to analyze the relationship between both cytokines, and their association with RA characteristics. No correlation was found between serum levels of IL-6 and IL-1ra (Pearson's r 0.031, p = 0.61). However, disease activity and acute phase reactants were positively and significantly associated with both cytokines. Nevertheless, after controlling for covariates, disease activity scores were more strongly associated with IL-1ra compared to IL-6. Circulating IL-6 and IL-1ra do not correlate with each other in RA patients. Although both are associated with disease activity and acute phase reactants, the relationship of disease activity to IL-1ra is greater than that to IL-6.

 Fuente: Life, 2023, 13, 82

Editorial: MDPI

 Año de publicación: 2022

Nº de páginas: 10

Tipo de publicación: Artículo de Revista

 DOI: 10.3390/life13010082

ISSN: 2075-1729

Autores/as

ALMEIDA-SANTIAGO, CRISTINA

QUEVEDO-ABELEDO, JUAN CARLOS

HERNÁNDEZ-HERNÁNDEZ, MARÍA VANESA

VERA-GONZÁLEZ, ANTONIA DE

GONZÁLEZ-DELGADO, ALEJANDRA

FERRAZ-AMARO, IVÁN