https://www.selleckchem.com/pr....oducts/pirfenidone.h
Background The relationship between the serum levels of Vitamin D and the severity of RA is a subject of great interest for the future therapeutic strategies. Although the evidence on the relationship between hypovitaminosis D and early RA is contradictory, preliminary data suggest that the serum levels of vitamin D are inversely associated with the disease activity. Aim the main objectives of this study include (1) to analyze the serum levels of vitamin D in patients with RA in comparison to healthy controls; (2) to investigatea po