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Chinese Journal of Kidney Disease Investigation(Electronic Edition) ›› 2024, Vol. 13 ›› Issue (05): 256-260. doi: 10.3877/cma.j.issn.2095-3216.2024.05.003

• Original Articles • Previous Articles    

Relationship of serum β-CTX,N-MID,and PICP with coronary artery calcification in maintenance hemodialysis patients and its diagnostic value

Min Zhou1,(), Yang Xu1, Ying Hu1, Xianfeng Huang1   

  1. 1.Blood Purification Center, Jingmen Hospital of Traditional Chinese Medicine, Jingmen 448001, Hubei Province,China
  • Received:2024-05-28 Online:2024-10-28 Published:2024-11-18
  • Contact: Min Zhou

Abstract:

Objective

To investigate the relationship of β-isomerized C-terminal telopeptide of type I collagen (β-CTX),N-terminal midfragment of osteocalcin (N-MID),and procollagen type I carboxyterminal propeptide (PICP) with coronary artery calcification in patients with maintenance hemodialysis(MHD) and its diagnostic value.

Methods

A cross-sectional study on 80 patients with MHD who underwent consultation in our hospital from May 2021 to May 2023 was conducted. They were divided into a calcification group (n = 47) and a non-calcification group (n = 33) according to the Agatston scoring system. The patients' basic information,comorbidities,and serum levels of calcium,phosphorus,β-CTX,N-MID,and PICP were collected. The influencing factors for coronary artery calcification were analyzed by the logistic regression method. The diagnostic value of serum β-CTX,N-MID,and PICP in coronary artery calcification was analyzed by the receiver operating characteristic (ROC) curve.

Results

Compared with the non-calcification group,the calcification group showed obviously higher serum levels of phosphorus (t =2.300, P <0.05),N-MID (t =4.653, P <0.05),and PICP (t =4.689, P <0.05),but significantly lower serum level of β-CTX (t=4.236, P <0.05). Logistic regression analysis results showed that serum phosphorus,CTX,N-MID,and PICP were all influencing factors for the coronary artery calcification in the MHD patients (OR=2.145,95%CI: 1.217-3.779; OR =0.593,95%CI: 0.436-0.807; OR =2.142,95%CI:1.346-3.408; OR =1.533,95%CI: 1.212-1.939). ROC curve analysis showed that the area under the curve (AUC) of the combination of β-CTX,N-MID,and PICP was 0.951 for diagnosing the coronary artery calcification in the MHD patients,with the specificity and sensitivity being 80. 0% and 83.0%,respectively.

Conclusion

In the MHD patients with the coronary artery calcification,serum level of β-CTX was significantly lower,while serum levels of N-MID and PICP were significantly higher. The combination of them three was of certain value in diagnosing coronary artery calcification in the MHD patients.

Key words: Maintenance hemodialysis, Coronary artery calcification, β-isomerized C-terminal telopeptide of type I collagen, N-terminal midfragment of osteocalcin, Procollagen type I carboxyterminal propeptide, Diagnosis

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