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  • Title: Alpha 2-Heremans-Schmid glycoprotein gene polymorphism (rs4918) is associated with coronary artery calcification in incident peritoneal dialysis patients.
    Author: Dai S, Chen Y, Shang D, Ge X, Yan H, Hao C, Zhu T.
    Journal: Nephrology (Carlton); 2023 Jan; 28(1):28-35. PubMed ID: 36314193.
    Abstract:
    AIM: Coronary artery calcification (CAC) is a common and severe complication in peritoneal dialysis (PD) patients, and it progresses in a majority of patients. Fetuin-A, encoded by the alpha 2-Heremans-Schmid glycoprotein (AHSG) gene, is a serum calcification inhibitor. The study aimed to examine the role of AHSG gene polymorphism rs4918 in CAC and CAC progression of PD patients. METHODS: Incident PD patients at Huashan Hospital Fudan University in China from August 2007 to July 2018 were recruited in this prospective study and followed up for 2 years. Patients underwent CAC measurements at recruitment and 2 years later. AHSG gene polymorphism rs4918 and serum fetuin-A were determined at baseline. The demographic characteristics, clinical data, and laboratory data were collected during the follow-up period. Binary logistic regression was performed to explore the association between rs4918 with CAC and CAC progression. RESULTS: A total of 202 PD patients (112 men, 55.4%) were recruited, with a mean age of 54 ± 16 years. The multivariate logistic regression identified genotype GG as an independent risk factor that correlates to CAC (odds ratio [OR] = 2.153; 95% CI: 1.182-3.925; p = .012) and CAC progression (OR = 2.482; 95% CI: 1.422-4.330; p = .001). The serum fetuin-A level was influenced by the rs4918 variants of AHSG, with a dose-dependent effect depending on the number of the G allele. CONCLUSION: AHSG gene polymorphism rs4918 affects serum fetuin-A levels and is significantly associated with both CAC and CAC progression in a cohort of patients receiving PD.
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