Background: Rheumatoid arthritis is an autoimmune disease of unknown etiology, characterized by articular inflammation. Oxidative damage induced by reactive oxygen species has been related to the pathophysiology of rheumatoid arthritis in several studies, although results have been inconsistent and contradictory.
Objective: To determine oxidative stress markers in patients with rheumatoid arthritis.
Methods: Descriptive cross-sectional study in rheumatoid arthritis patients and healthy controls. In peripheral blood samples from all study subjects, lipid peroxide (thiobarbituric acid reactive substances) and protein carbonyl levels were quantified as oxidative damage markers; superoxide dismutase and glutathione peroxidase activities, glutathione concentration, and the reduced glutathione/oxidized glutathione ratio were analyzed as antioxidant defense indicators. Mann-Whitney U tests were run. Statistical significance (a) was 0.05%.
Results: We included 29 rheumatoid arthritis patients, 10 with active disease, and 41 healthy controls. Age was higher in the rheumatoid arthritis group; there were no differences in female:male ratio between groups. Oxidative damage was higher in rheumatoid arthritis patients; however, there was no difference between patients with active or inactive rheumatoid arthritis. Antioxidant enzyme activities, glutathione concentration, and reduced glutathione/oxidized glutathione ratio were higher in rheumatoid arthritis patients than in controls.
Conclusions: Antioxidant levels were higher in rheumatoid arthritis patients than in healthy controls; however, they were insufficient to prevent oxidative damage. This suggests an active oxidative process in rheumatoid arthritis patients.
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Arthritis Res Ther
January 2025
Department of Biomedical Sciences, Humanitas University, Via R Levi Montalcini 4, Pieve Emanuele, Milan, 20090, Italy.
Background: There is still a significant proportion of patients with rheumatoid arthritis (RA) in whom multiple therapeutic lines are ineffective. These cases are defined by the EULAR criteria as Difficult-to-Treat RA (D2T-RA) for which there is limited knowledge of predisposing factors.
Objective: To identify the clinical features associated with D2T-RA in real-life practice.
Inflammopharmacology
January 2025
Department of Food Technology and Nutrition, Lovely Professional University, Phagwara, Punjab, 144411, India.
Rheumatoid Arthritis (RA) is an autoimmune, chronic, systemic inflammatory disease that causes redness, swelling, stiffness, and joint pain. It is a long-lasting disease that can have a widespread impact on the body, often affecting the hands, feet, and wrists. The immune cells, such as dendritic cells, T cells, B cells, macrophages, and neutrophils, play a significant role in bone degradation and inflammation.
View Article and Find Full Text PDFNat Genet
January 2025
Department of Statistical Genetics, Osaka University Graduate School of Medicine, Suita, Japan.
Aberrant immune responses to viral pathogens contribute to pathogenesis, but our understanding of pathological immune responses caused by viruses within the human virome, especially at a population scale, remains limited. We analyzed whole-genome sequencing datasets of 6,321 Japanese individuals, including patients with autoimmune diseases (psoriasis vulgaris, rheumatoid arthritis (RA), systemic lupus erythematosus (SLE), pulmonary alveolar proteinosis (PAP) or multiple sclerosis) and coronavirus disease 2019 (COVID-19), or healthy controls. We systematically quantified two constituents of the blood DNA virome, endogenous HHV-6 (eHHV-6) and anellovirus.
View Article and Find Full Text PDFJ Hand Ther
January 2025
Faculty of Health and Life Sciences, University of Exeter, Exeter, United Kingdom.
Background: The Strengthening and Stretching for Rheumatoid Arthritis of the Hand (SARAH) program is an evidence-based exercise program for adults with hand function difficulties due to rheumatoid arthritis. A self-guided online version of the program has been developed for direct access by patients.
Purpose: To evaluate the delivery of the online program in routine therapy care and its impact on clinical outcomes, before making it widely available.
Exp Cell Res
January 2025
Department of Plastic Surgery, The First Affiliated Hospital of Anhui Medical University, Anhui 230032, China. Electronic address:
Keloids are disfiguring proliferative scars, and their pathological mechanisms are still unclear. We have previously established that FoxC1 plays a significant role in rheumatoid arthritis and osteoarthritis, but its molecular mechanisms in pathological scar formation remain elusive. In this study, we analyzed keloid tissue characteristics using HE staining and immunohistochemistry, revealing abnormal expression of FoxC1 and Notch3 in keloids.
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