Effects of serum HIF-1α and VEGF on vascular calcification in patients with maintenance hemodialysis
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摘要:
目的 探讨血清低氧诱导因子-1α(HIF-1α)、血管内皮生长因子(VEGF)与维持性血液透析(MHD)患者血管钙化(VC)的关系,并评估其对VC的预测价值。 方法 选取2023年10月—2024年8月于安徽理工大学第一附属医院血液净化中心行MHD的101例慢性肾脏病(CKD)患者,采用腹部侧位X线平片评估患者VC情况。根据腹主动脉钙化积分(AACS)将其分为钙化组(59例)和非钙化组(42例)。比较2组患者血钙、血磷等临床资料及血清HIF-1α、VEGF水平;采用相关性分析研究HIF-1α、VEGF与AACS的相关性;采用多因素logistic回归分析研究MHD患者VC发生的影响因素;采用ROC曲线分析HIF-1α、VEGF水平对MHD患者发生VC的预测价值。 结果 钙化组年龄、透析龄、碱性磷酸酶、血钙、血磷、TC、HIF-1α、VEGF水平均高于非钙化组(P < 0.05)。相关性分析显示,HIF-1α、VEGF水平与AACS均呈正相关关系(P < 0.05)。多因素logistic回归分析显示, 年龄、血钙、血磷、HIF-1α、VEGF均为MHD患者发生VC的影响因素(P < 0.05)。HIF-1α、VEGF单独以及两者联合预测MHD患者发生VC的ROC曲线下面积分别为0.756(灵敏度47.5%,特异度97.6%)、0.777(灵敏度71.2%,特异度76.2%)、0.879(灵敏度83.1%,特异度83.3%)。 结论 年龄、血钙、血磷、HIF-1α及VEGF水平均为MHD患者发生AACS的影响因素,HIF-1α及VEGF与VC呈正相关关系,两者均对MHD患者发生VC有一定的预测价值,二者联合预测价值更高。 Abstract:Objective To investigate the relationship between serum hypoxia-inducible factor-1α (HIF-1α), vascular endothelial growth factor (VEGF), and vascular calcification (VC) in patients with maintenance hemodialysis (MHD), and to evaluate their predictive value for VC. Methods A total of 101 patients with chronic kidney disease (CKD) who underwent MHD in the Blood Purification Center of the First Affiliated Hospital of Anhui University of Science and Technology from October 2023 to August 2024 were enrolled. The patients ' VC was evaluated by abdominal lateral X-ray. According to the abdominal aortic calcification score (AACS), they were divided into a calcification group (59 cases) and a non-calcification group (42 cases). The clinical data, such as serum calcium and phosphorus, and serum HIF-1α and VEGF levels, were compared between the two groups. The correlation method was used to analyze the correlation between HIF-1α, VEGF, and AACS. Multivariate logistic regression was used to analyze the influencing factors of VC in MHD patients. The ROC curve was used to analyze the predictive value of HIF-1α and VEGF levels for VC in MHD patients. Results The age, dialysis age, alkaline phosphatase, serum calcium, serum phosphorus, TC, HIF-1α, and VEGF levels in the calcification group were higher than those in the non-calcification group (P < 0.05). Correlation analysis showed that the levels of HIF-1α and VEGF were positively correlated with AACS (P < 0.05). Multivariate logistic regression showed that age, serum calcium, serum phosphorus, HIF-1α, and VEGF were risk factors for VC in MHD patients (P < 0.05). The areas under the ROC curves of HIF-1α and VEGF alone and their combined prediction were 0.756 (sensitivity 47.5%, specificity 97.6%), 0.777 (sensitivity 71.2%, specificity 76.2%), and 0.879 (sensitivity 83.1%, specificity 83.3%), respectively. Conclusion Age, serum calcium, serum phosphorus, and levels of HIF-1α and VEGF are important influencing factors for the occurrence of VC in MHD patients. HIF-1α and VEGF are positively correlated with AACS. Both have certain predictive value for the occurrence of VC in MHD patients, and the combined predictive value is higher. -
表 1 2组CKD患者一般资料比较
Table 1. Comparison of general data in CKD patients between two groups
项目 非钙化组(n=42) 钙化组(n=59) 统计量 P值 性别[例(%)] 0.632a 0.426 男性 26(61.9) 41(69.5) 女性 16(38.1) 18(30.5) 年龄(x ±s, 岁) 48.24±10.11 63.05±10.31 7.174b < 0.001 体质量[M(P25, P75), kg] 64.75(57.30, 73.50) 63.70(55.75, 73.25) -0.441c 0.659 透析龄[M(P25, P75), 月] 38.50(14.00, 60.00) 51.00(24.50, 69.50) -1.969c 0.049 原发病种类[例(%)] 1.432a 0.698 高血压肾病 6(14.3) 13(22.0) 糖尿病肾病 14(33.3) 20(33.9) 慢性肾小球肾炎 11(26.2) 11(18.6) 其他 11(26.2) 15(25.4) 收缩压(x ±s, mmHg) 144.19±21.12 144.12±22.67 0.016b 0.987 舒张压(x ±s, mmHg) 80.67±10.07 75.03±13.14 2.332b 0.022 注:a为χ2值,b为t值,c为Z值。1 mmHg=0.133 kPa。 表 2 2组CKD患者生化指标比较
Table 2. Comparison of biochemical indicators between the two groups of CKD patients
项目 非钙化组(n=42) 钙化组(n=59) 统计量 P值 Hb(x ±s, g/L) 113.00±13.88 109.39±17.68 1.103a 0.273 碱性磷酸酶[M(P25, P75), U/L] 87.50(76.50, 104.00) 98.00(76.50, 120.50) -1.978b 0.048 BUN(x ±s, mmol/L) 40.52±10.96 44.77±13.30 1.701a 0.092 肌酐(x ±s, μmol/L) 859.52±252.90 787.37±200.73 1.597a 0.114 血钙[M(P25, P75), μmol/mL] 22.90(22.10, 23.50) 23.20(22.80, 24.20) 2.338b 0.019 血镁(x ±s, mmol/L) 1.06±0.10 1.05±0.13 0.453a 0.652 血磷(x ±s, μmmol/mL) 16.51±4.11 18.31±3.85 2.248a 0.027 TG[M(P25, P75), mmol/L] 1.35(1.10, 2.30) 1.28(0.92, 2.05) -0.696b 0.486 TC(x ±s, mmol/L) 3.79±0.82 4.20±1.10 2.029a 0.045 CRP[M(P25, P75), mg/L] 0.10(0.10, 2.05) 0.10(0.10, 0.10) -0.179b 0.858 胱抑素C(x ±s, mmol/L) 7.13±1.46 7.66±1.22 1.988a 0.050 甲状旁腺激[M(P25, P75), pg/mL] 273.06(145.16, 415.99) 249.96(153.01, 392.45) -0.386b 0.700 注:a为t值,b为Z值。 表 3 MHD患者VC发生影响因素的多因素logistic回归分析
Table 3. Multivariate logistic regression analysis of factors influencing VC occurrence in MHD patients
变量 B SE Waldχ2 P值 OR值 95% CI 年龄 0.259 0.070 13.641 < 0.001 1.296 1.129~1.487 透析龄 0.015 0.015 1.041 0.307 1.015 0.986~1.044 碱性磷酸酶 0.013 0.017 0.588 0.443 1.013 0.980~1.047 血钙 1.042 0.454 5.275 0.022 2.836 1.165~6.902 血磷 0.238 0.112 4.531 0.033 1.268 1.019~1.578 TC -0.625 0.471 1.759 0.185 0.535 0.212~1.348 HIF-1α 0.037 0.010 13.374 < 0.001 1.038 1.017~1.059 VEGF 0.050 0.019 6.846 0.009 1.051 1.013~1.091 -
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