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
Min Zhou, Yang Xu, Ying Hu, Xianfeng Huang. Relationship of serum β-CTX,N-MID,and PICP with coronary artery calcification in maintenance hemodialysis patients and its diagnostic value[J]. Chinese Journal of Kidney Disease Investigation(Electronic Edition), 2024, 13(05): 256-260.