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Association of serum irisin levels with postoperative cognitive dysfunction in older patients following total hip or knee arthroplasty: A prospective observational study

Author

Listed:
  • Hongxia Zhang
  • Xue Lin
  • Yue Zhao
  • Yuting Zou
  • Wei Pan
  • Liangying Yi
  • Yiping Bai
  • Daiying Zhang

Abstract

Background: Postoperative cognitive dysfunction (POCD) is a frequent complication in older patients undergoing hip and knee arthroplasty. While irisin has demonstrated benefits in neurological disorders associated with cognitive impairment, its role in POCD remains unclear. This study investigated the association between serum irisin levels and POCD and assessed the discriminative value of irisin for POCD development. Methods: This prospective observational study employed Spearman correlation and multifactorial logistic regression analyses to investigate the relationships between these biomarkers and POCD. Receiver operating characteristic analyses were then performed to assess the discriminative value of irisin. Result: POCD occurred in 37 (31.36%) patients. Serum irisin levels were markedly reduced in patients with POCD relative to those without POCD. T0 irisin (rho = 0.675) levels correlated positively with Montreal cognitive assessment-Basic (MoCA-B) scores. Logistic regression analysis identified T0 irisin, T1 irisin, T0 Tumor necrosis factor-α (TNF-α), and hypertension as independent factors associated with the development of POCD (all P

Suggested Citation

  • Hongxia Zhang & Xue Lin & Yue Zhao & Yuting Zou & Wei Pan & Liangying Yi & Yiping Bai & Daiying Zhang, 2026. "Association of serum irisin levels with postoperative cognitive dysfunction in older patients following total hip or knee arthroplasty: A prospective observational study," PLOS ONE, Public Library of Science, vol. 21(4), pages 1-12, April.
    • Handle: RePEc:plo:pone00:0344177
    DOI: 10.1371/journal.pone.0344177
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