There is a significant rate of therapeutic failure in rheumatoid arthritis (RA) patients treated
with leflunomide (LEF). This study investigates the utility values of teriflunomide levels (A77 …

Objective. To evaluate the association between circulating leptin and bone mineral density (BMD)
in patients with rheumatoid arthritis (RA). Methods. One-hundred thirty …

In this cross-sectional study, we assessed the relationship between circulating TNF-α and E-selectin
(sE-selectin) with extraarticular involvement and severity of joint disease in RA. We …

Tuberculosis is a disease that affects a third of the world’s population and according to the
World Health Organization is considered an important public health issue. Any member of the …

Idiopathic inflammatory myopathies (IIMs) are a group of rare, acquired autoimmune
diseases characterized by profound muscle weakness and immune cell invasion into non-necrotic …

Objective. To evaluate whether serum titers of second-generation anticyclic citrullinated
peptide antibodies (anti-CCP2) are associated with the severity and extent of interstitial lung …

The main cause of death in rheumatoid arthritis (RA) is cardiovascular events. We evaluated
the relationship of anticyclic citrullinated peptide (anti-CCP) antibody levels with increased …

Determination of anti-citrullinated peptide antibodies (ACPA) plays a relevant role in the
diagnosis of rheumatoid arthritis (RA). To date, it is still unclear if the use of several tests for …

Methods In this cross-sectional study, we recruited RA patients older than 18 years, classified
into 3 groups according to serum vitamin D levels: sufficient,≥ 30 ng/mL; insufficient, 20–…

The objective of this study was to evaluate the differences in allele and genotype frequencies
of −383 tumor necrosis factor receptor 1 (TNFR1) polymorphism between ankylosing …