Serum Levels of Hepcidin in Rheumatoid Arthritis and Its Correlation with Disease Activity and Anemia: A Meta-analysis

ABSTRACT

Present studies on serum hepcidin levels in patients with rheumatoid arthritis (RA) are inconsistent. We aimed to synthetically evaluate the relationship between hepcidin and RA, and the correlation of serum hepcidin levels and RA disease activity as well as anemia associated with RA. Multiple electronic databases were searched. Pooled standard mean difference (SMD) with 95% confidence interval (CI) and correlation coefficients between hepcidin levels and rheumatoid factor (RF), disease activity for 28 joints (DAS28), and erythrocyte sedimentation rate (ESR) were calculated. Totally, 13 articles were available for this meta-analysis. The results revealed that serum levels of hepcidin were higher in RA patients compared to healthy controls (SMD = 0.573, 95% CI = 0.317 to 0.829, p < .001); RA patients with anemia had higher serum hepcidin levels than RA patients without anemia (SMD = 0.400, 95% CI = 0.080 to 0.720, p = .014); RA patients with pure ACD had higher serum hepcidin levels than RA patients with ACD and IDA (SMD = 0.658, 95% CI = 0.018 to 1.299, p = .044). Moreover, the result of correlation coefficients identified a significant positive correlation between hepcidin levels and RF, DAS28 as well as ESR. Serum hepcidin levels may be closely associated with the development of RA.

KEYWORDS:

• Hepcidin
• prohepcidin
• rheumatoid arthritis
• anemia
• activity

Disclosure statement

All authors declare they have no conflicts of interest.

Additional information

Funding

This study was supported by grants from the National Natural Science Foundation of China [81273169, 81573218, 81773514] and the funds for academic and technical leaders in Anhui province [2017D140]; National Natural Science Foundation of China [81273169,81773514]; National Natural Science Foundation of China [81573218]; the funds for academic and technical leaders in Anhui province [2017D140].