PURPOSE OF REVIEW: In recent years, there has been a growing interest in the value of vitamin D and its effects on autoimmunity. The aim of this review is to summarize the current knowledge on the association between vitamin D and rheumatoid arthritis (RA) in terms of prevalence, disease activity, clinical expression, serology and gene polymorphisms of vitamin D receptors. RECENT FINDINGS: Studies have shown contrasting findings concerning the association between vitamin D levels and RA. Vitamin D seems to have immunomodulatory properties. Therefore, low vitamin D levels could contribute to increased immune activation. However, the potential role of vitamin D supplementation in preventing RA manifestation and its beneficial role as a component of RA treatment remain controversial. The relationship between RA susceptibility and vitamin D polymorphisms is also unclear. SUMMARY: Despite advancements synthesized by some recent meta-analyses, the relationship between vitamin D and RA requires further evaluation. Further research is needed to confirm the relationship between RA susceptibility and vitamin D polymorphisms and to determine whether vitamin D plays a role in preventing the manifestation of RA. Finally, additional studies are required to determine the impact and optimal amount of vitamin D supplementation in the treatment of RA patients.
PURPOSE OF REVIEW: In recent years, there has been a growing interest in the value of vitamin D and its effects on autoimmunity. The aim of this review is to summarize the current knowledge on the association between vitamin D and rheumatoid arthritis (RA) in terms of prevalence, disease activity, clinical expression, serology and gene polymorphisms of vitamin D receptors. RECENT FINDINGS: Studies have shown contrasting findings concerning the association between vitamin D levels and RA. Vitamin D seems to have immunomodulatory properties. Therefore, low vitamin D levels could contribute to increased immune activation. However, the potential role of vitamin D supplementation in preventing RA manifestation and its beneficial role as a component of RA treatment remain controversial. The relationship between RA susceptibility and vitamin D polymorphisms is also unclear. SUMMARY: Despite advancements synthesized by some recent meta-analyses, the relationship between vitamin D and RA requires further evaluation. Further research is needed to confirm the relationship between RA susceptibility and vitamin D polymorphisms and to determine whether vitamin D plays a role in preventing the manifestation of RA. Finally, additional studies are required to determine the impact and optimal amount of vitamin D supplementation in the treatment of RA patients.
Authors: Jean Lucas G da Silva; Daniela F Passos; Viviane M Bernardes; Fernanda L Cabral; Paulo G Schimites; Alessandra G Manzoni; Edilene Gadelha de Oliveira; Cristiane de Bona da Silva; Ruy Carlos Ruver Beck; Matheus H Jantsch; Roberto M Maciel; Daniela B R Leal Journal: Inflammation Date: 2019-10 Impact factor: 4.092
Authors: Javier Rodríguez-Carrio; Mercedes Alperi-López; Manuel Naves-Díaz; Adriana Dusso; Patricia López; Francisco Javier Ballina-García; Jorge B Cannata-Andía; Ana Suárez Journal: Sci Rep Date: 2019-02-22 Impact factor: 4.379