Serum selenium concentrations in rheumatoid arthritis

Area of Science:

• Biochemistry
• Immunology
• Nutritional Science

Background:

• Selenium is an essential trace element vital for glutathione peroxidase, an enzyme protecting cells from oxidative stress.
• Selenium exhibits antiproliferative, anti-inflammatory, antiviral, and immune-modulating properties.
• Oxidative damage and immune dysregulation are implicated in rheumatoid arthritis pathogenesis.

Purpose of the Study:

• To investigate serum selenium concentrations in patients with seropositive rheumatoid arthritis.
• To compare selenium levels between rheumatoid arthritis patients, fibrositis patients, and healthy controls.
• To explore the potential role of selenium in rheumatoid arthritis development and progression.

Main Methods:

• Serum selenium concentrations were measured in 101 patients with seropositive rheumatoid arthritis.
• Selenium levels were also measured in 29 healthy controls and 8 patients with fibrositis.
• Statistical comparison of mean serum selenium concentrations between the groups.

Main Results:

• Serum selenium concentrations were significantly lower in rheumatoid arthritis patients (mean (SD) 148 (42) micrograms/l) compared to healthy controls (160 (25) micrograms/l).
• Rheumatoid arthritis patients also had lower selenium levels than patients with fibrositis (166 (25) micrograms/l).
• A notable difference was observed between rheumatoid arthritis patients and both control groups.

Conclusions:

• Lower serum selenium concentrations are associated with seropositive rheumatoid arthritis.
• Selenium may influence the impact of infections or genetic factors in rheumatoid arthritis development.
• Further research is warranted to elucidate the precise role of selenium in rheumatoid arthritis pathogenesis and progression.