ArticleThe Korean journal of internal medicine2025
Association of peripheral leukocyte telomere length with patients with rheumatoid arthritis with a focus on interstitial lung disease.
Article in The Korean journal of internal medicine, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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Who cites it
2 citing papers in PubMed.
- Lung disease in rheumatoid arthritis.Nature reviews. Rheumatology · 2026Review
- Lengthened telomere length in peripheral blood leukocytes in patients with rheumatoid arthritis complicated with airway disease.BMC rheumatology · 2025Article
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Authors and funding
7 authors.
Funding
Abstract
BACKGROUND/
aimsThis study investigated whether telomere length (TL) in rheumatoid arthritis (RA) patients is shorter than in controls, whether TL in RA patients with interstitial lung disease (RA-ILD) differs from that in those without ILD (RA-nonILD), and whether TL varies according to RA-ILD patterns.
methodsTL was measured in peripheral leukocytes using quantitative polymerase chain reaction. Results were compared between controls (n = 14), RA (n = 70), RA-ILD (n = 53), and RA-nonILD (n = 53), and between the subgroups with usual interstitial pneumonia (UIP; n = 32) and nonspecific interstitial pneumonia (NSIP; n = 8), with age- and sex-matching in each comparison. The correlation between TL and honeycombing extent was determined.
resultsRA patients had significantly shorter TL (8.3 ± 2.5 kb) than controls (9.5 ± 0.8 kb; p = 0.002). No significant TL difference was found between RA-ILD and RA-nonILD (8.2 ± 2.8 vs 7.7 ± 2.4 kb, p = 0.271). Among RA-ILD, age (p = 0.011), disease activity (p = 0.018), and UIP (p = 0.038) were significantly associated with shortened TL. TL in UIP was shorter than in NSIP (7.4 ± 1.9 vs. 10.0 ± 3.1 kb, p = 0.026). Honeycombing extent in UIP showed a negative correlation with TL but it was nonsignificant (Rho = -0.131, p = 0.387).
conclusionThis study confirms that RA is associated with shorter TL than in healthy individuals and suggests variations in TL among RA-ILD subtypes, indicating that telomere involvement in pathogenesis may differ by subtype.
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