The Relationship between Urinary NGAL and Flow-mediated Vasodilation in Prehypertension
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摘要:
目的 探究正常高值血压患者的尿中性粒细胞明胶酶相关脂质运载蛋白(NGAL)与肱动脉血流介导的血管舒张功能(FMD)的相关性。 方法 研究选择2022年9月至2023年9月期间,在武汉市武昌医院珞狮路社区卫生服务中心进行健康体检发现的156例正常高值血压患者为研究对象,将156例正常高值血压患者按FMD是否在10%以上,分为内皮功能正常组89例和内皮功能障碍组67例。收集所有患者的性别、年龄、吸烟史、身高、体重、收缩压(SBP)、舒张压(DBP)、血糖(FBG)、血脂、血清肌酐(SCr)、肾小球滤过率(eGFR)、尿素氮(BUN)、尿酸(UA)、同型半胱氨酸(Hcy)、尿NGAL、FMD等指标。采用独立样本t检验、线性相关、二元 Logistic 回归、ROC曲线分析正常高值血压患者中FMD与 NGAL 的相关性。 结果 2组患者在性别,吸烟史、SBP、FBG、总胆固醇(TC)、低密度脂蛋白(LDL-c)、三酰甘油(TG)、 BUN、SCr、eGFR、UA、Hcy等方面,差异无统计学意义(P>0.05)。内皮功能障碍组(FMD≤10%)年龄、体质指数(BMI)、DBP、高密度脂蛋白(HDL-c)及尿NGAL水平明显高于内皮功能正常组(P < 0.05)。Pearson 线性相关性分析发现,尿NGAL水平与FMD呈负相关( r=-0.737 P<0.05),多元线性回归分析:尿NGAL、舒张压对FMD的影响,差异有统计学意义(均P<0.05),Logistic回归分析结果显示: 尿NGAL、舒张压是FMD的独立危险因素,ROC 曲线分析NGAL、DBP及NGAL联合DBP检测的曲线下面积依次为0.813、0.895、0.906,两者联合检测诊断效能更高。 结论 尿NGAL和舒张压与内皮功能障碍相关,尿NGAL有望作为评价血管内皮功能损伤的新型生物标志物,及正常高值血压干预治疗的靶点。 -
关键词:
- 中性粒细胞明胶酶相关脂质运载蛋白 /
- 肱动脉血流介导的血管舒张功能 /
- 正常高值血压 /
- 高血压
Abstract:Objective To explore the correlation between the urinary neutrophil gelatinase-associated lipid carrier protein(NGAL) and Brachial artery flow-mediated vasodilation(FMD) in Prehypertension. Methods 156 patients with Prehypertension found to have the normal high blood pressure during a health examination at the Luo Shi Road Community Health Service Center of Wuchang Hospital in Wuhan from September 2022 to September 2023 were included and divided into the normal endothelial function group and the endothelial dysfunction group with 89 cases and 67 cases respectively in each group according to whether the FMD was above 10%. The sex, age, smoking history, height, weight, SBP, DBP, FBG, Scr, eGFR, BUN, UA, Hcy, urine NGAL, FMD and other indicators were collected. The correlation between FMD and NGAL in prehypertension was analyzed by using independent samples t-test, Pearson linear correlation, multiple linear regression, binary logistic regression, and receiver operator characteristic(ROC) curves. Results There were no significant differences in gender, smoking history, SBP, FBG, TG, LDL-c, TC, BUN, Scr, UA, eGFR and Hcy(all P > 0.05).The age, BMI, DBP, HDL-c, and urine NGAL levels in the endothelial dysfunction group were significantly higher than those in the normal endothelial function group( P < 0.05). Pearson linear correlation analysis showed that urine NGAL levels were negative correlated with FMD( r = -0.632 P < 0.05). Multiple linear regression analysis: NGAL, DBP significantly affected FMD(all P < 0.05). NGAL and diastolic blood pressure were independent risk factors for FMD. The area under the curve of ROC curve analysis was 0.813, 0.895 and 0.906 respectively for urinary NGAL, DBP and urinary NGAL combined with DBP. DBP combined with urinary NGAL had the higher diagnostic efficacy. Conclusion Urinary NGAL and DBP are associated with the endothelial dysfunction, and urinary NGAL is expected to be a new biomarker for evaluating the vascular endothelial function loss and a target for the intervention of prehypertension -
Key words:
- Urinary NGAL /
- Flow-mediated vasodilation /
- Prehypertension /
- Hypertension
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表 1 2组患者一般临床资料比较[( $ \bar x \pm s $)/n(%)/M(Q1,Q3)]
Table 1. Comparison of general clinical data between the 2 groups[( $ \bar x \pm s $)/n(%)/M(Q1,Q3)]
项目 内皮功能障碍 内皮功能正常 检验值 P (n=67) (n=89) 男性 43(64.200) 64(71.900) 0.200a 0.655 年龄(岁) 56.640±9.21 49.350±8.911 5.035b <0.001* 吸烟史 17(25.400) 23(25.800) 0.004a 0.947 BMI(kg/m2) 23.857±4.374 22.070±4.170 2.574b 0.011* SBP(mmHg) 130.000(125.000,133.000) 127.000(123.000,133.000) −1.456c 0.145 DBP(mmHg) 84.180±3.191 77.420±4.356 10.723b <0.001* 血糖(mmol/L) 5.215±0.894 5.091±0.812 0.896b 0.372 TC=(mg/dL) 5.083±0.946 4.898±0.931 1.218b 0.225 TG=(mg/dL) 1.624±0.897 1.519±0.770 0.783b 0.435 HDL-c(mg/dL) 1.202±0.288 1.315±0.278 −2.471b 0.015* LDL-C(mg/dL) 3.120±0.839 3.040±0.778 0.618b 0.537 SCr(mg/dL) 75.981±14.862 74.300±13.466 0.737b 0.462 BUN(mg/dL) 4.990±1.265 4.850±1.196 0.706b 0.481 eGFR(mL/min) 95.503±11.623 98.779±11.820 −1.726b 0.086 UA(mg/dL) 372.428±86.908 370.801±85.207 0.117b 0.907 HCY(mmol/L) 15.137±6.598 14.851±4.522 0.321b 0.748 NGAL(mg/dL) 81.481±28.737 49.685±21.892 7.846b <0.001* a 为χ2值; b 为t值; c为Z值;*P < 0.05。 表 2 FMD影响因素的多元线性回归分析(n=156)
Table 2. Multiple linear regression analysis of FMD influencing factors(n=156)
项目 B B值标准误 t P 男性 −0.669 4.145 −1.560 0.121 年龄(岁) 0.008 0.429 0.299 0.765 吸烟史 −0.091 0.028 −0.189 0.850 BMI(kg/m2) −0.065 0.482 −1.276 0.204 DBP(mmHg) −0.411 0.051 −7.788 <0.001* HDL-C(mg/dL) 1.120 0.053 1.504 0.135 尿NGAL(mg/dL) −0.066 0.744 −6.690 <0.001*
*P<0.05。 表 3 FMD危险因素的Logistic回归分析(n=156)
Table 3. Logistic regression analysis of risk factors for FMD(n=156)
项目 B B标准误 Wald v P OR 95%CI 年龄(岁) −0.037 0.033 1.268 1 0.26 0.963 0.902~1.028 吸烟史[n(%)]
(以不吸烟为对照)−0.118 0.578 0.042 1 0.838 0.888 0.286~2.760 BMI(kg/m2) 0.045 0.069 0.434 1 0.51 1.046 0.914~1.197 收缩压(mmHg) 0.014 0.044 0.095 1 0.758 1.014 0.930~1.105 舒张压(mmHg) 0.455 0.095 23.068 1 <0.001* 1.575 1.309~1.897 FBG((mmol/L) 0.182 0.303 0.36 1 0.548 1.199 0.662~2.172 TC(mg/dL) 0.353 0.271 1.694 1 0.193 1.423 0.837~2.421 TG(mg/dL) 0.201 0.316 0.405 1 0.524 1.223 0.658~2.271 HDL-C(mg/dL) 0.222 0.951 0.054 1 0.815 1.249 0.194~8.051 LDL-C(mg/dL) −0.019 0.318 0.004 1 0.952 0.981 0.526~1.830 SCr(mg/dL) 0.001 0.019 0.004 1 0.948 1.001 0.964~1.039 BUN(mg/dL) 0.297 0.219 1.836 1 0.175 1.345 0.876~2.067 eGFR(mL/min) −0.009 0.024 0.124 1 0.725 0.992 0.946~1.040 UA(mg/dL) −0.004 0.003 1.571 1 0.21 0.996 0.990~1.002 HCY(mmol/L) −0.007 0.05 0.018 1 0.894 0.993 0.901~1.095 尿NGAL(mg/dL) 0.033 0.012 7.097 1 0.008* 1.034 1.009~1.059 男性[n(%)] −0.706 0.527 1.795 1 0.18 0.494 0.902~1.386 (以女性为对照) *P<0.05。 表 4 尿NGAL、DBP诊断血管内皮功能障碍的 ROC 曲线分析(n=156)
Table 4. ROC curve analysis of Urinary NGAL and DBP for the diagnosis of vascular endothelial dysfunction(n=156)
项目 AUC SE P value 95%CI 敏感度 特异度 约登指数 截断值 NGAL(mg/dL) 0.813 0.034 <0.001 0.746~0.880 0.716 0.809 0.525 67.550 DBP(mmHg) 0.895 0.025 <0.001 0.824~0.944 0.821 0.820 0.641 81.500 NGAL+DBP 0.906 0.024 <0.001 0.858~0.903 0.851 0.876 0.727 0.553 -
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