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原发性肾病综合征患儿检测结合珠蛋白和α1抗胰蛋白酶对预测激素治疗反应的探讨 被引量:8

Value of determination of haptoglobin and α1-antitrypsin in predicting response to glucocorticoid therapy in children with primary nephrotic syndrome
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摘要 目的探讨原发性肾病综合征(PNS)患儿血清及尿液中结合珠蛋白(HP)和α1抗胰蛋白酶(AAT)的水平对预测激素治疗儿童PNS疗效的价值。方法将84例PNS患儿分为激素敏感型肾病综合征(SSNS)组(n=58)和激素耐药型肾病综合征(SRNS)组(n=26);随机抽取40例健康儿童作为对照组。ELISA法检测各组血、尿样本中HP及AAT水平。受试者工作特征曲线(ROC曲线)评价HP和AAT对激素治疗PNS疗效的预测效能。结果 SSNS组与SRNS组治疗前血清HP浓度及尿AAT/Cr比值均显著高于对照组(P<0.05);与SSNS组比较,SRNS组血清HP浓度及尿AAT/Cr比值在治疗前、治疗1周及4周时均显著升高(P<0.05)。当血清HP浓度为37.935 mg/m L时,其预测激素治疗儿童PNS疗效的效能最高,敏感度为92.3%,特异度为86.2%;当尿AAT/Cr比值为0.0696时,其预测效能最高,敏感度为100%,特异度为79.3%;血清HP联合尿AAT/Cr比值作ROC曲线分析,敏感度为92.3%,特异度为96.6%,具有更好的预测效能。结论血清HP或尿AAT/Cr比值升高在PNS患儿发病初期提示可能为激素耐药;如能两者联合检测对SRNS预测效能更佳。 Objective To study the value of the determination of serum and urine haptoglobin (HP) and alpha 1-antitrypsin (AAT) in predicting the response to glncocorticoid therapy in children with primary nephrotic syndrome (PNS). Methods A total of 84 children with PNS were classified to steroid-sensitive nephrotic syndrome (SSNS) (n=58) and steroid-resistant nephrotic syndrome (SRNS) groups (n=26). Forty healthy children were randomly selected for the control group. HP and AAT levels in blood and urinary samples were determined using ELISA. The efficiency of HP and AAT in predicting the response to glucocorticoid treatment of PNS was evaluated by the receiver operating characteristic (ROC) curve. Results Compared with the control group, both the SSNS and SRNS groups had significantly higher serum HP concentrations and urine AAT/Cr ratio before treatment (P〈0.05); compared with the SSNS group, the SRNS group had significantly higher serum HP concentrations and urine AAT/Cr ratio before treatment and after one week and four weeks of treatment (P〈0.05). Serum liP had the highest efficiency in predicting the response to glucocorticoid treatment of PNS at the concentration of 37.935 mg/mL, with the sensitivity and specificity being 92.3% and 86.2% respectively. Urine AAT/Cr ratio had the highest prediction efficiency at 0.0696, with the sensitivity and specificity being 100% and 79.3% respectively. ROC curve analysis of serum HP combined with urine AAT/Cr ratio showed a better prediction efficiency, with the sensitivity and specificity being 92.3% and 96.6% respectively. Conelusions The increase in serum HP level or urine AAT/Cr ratio may indicate glucocorticoid resistance in the early stage of PNS. A combination of the two can achieve better efficiency in the prediction of SRNS.
作者 杨娟 张碧丽
出处 《中国当代儿科杂志》 CAS CSCD 北大核心 2015年第3期227-231,共5页 Chinese Journal of Contemporary Pediatrics
基金 天津市卫生局科技基金(12KG117)
关键词 结合珠蛋白 Α1抗胰蛋白酶 原发性肾病综合征 儿童 Haptoglobin Alpha 1-antitrypsin Primary nephrotic syndrome Child
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