Identification of serum interleukin-13 and interleukin-13 receptor subunit expressions: Rheumatoid arthritis-associated interstitial lung disease.

Aim Of The Work: To identify the role of serum IL-13, and its receptor subunit expressions as a serologic marker of rheumatoid arthritis (RA)-associated ILD (RA-ILD).

Patients And Methods: Fifty RA patients with ILD and 50 RA patients without ILD were examined, in addition to 50 controls. Disease Activity Score in 28 joints (DAS-28), the Health Assessment Questionnaire (HAQ), and medication history were evaluated.