Relationships of β2-microglobulin,retinol binding protein and aquaporin-2 in serum and urine with the severity of hydronephrosis induced by ureteropelvic junction obstruction in children
- VernacularTitle:血清及尿β2微球蛋白、视黄醇结合蛋白、水通道蛋白-2与肾盂输尿管连接部梗阻致小儿肾积水严重程度的关系研究
- Author:
Hongda DENG
1
;
Honghui DENG
;
Weizheng HUANG
Author Information
- Keywords: ureteropelvic junction; obstruction; hydronephrosis; β2 microglobulin; retinol binding protein; aquaporin-2
- From: Journal of Clinical Medicine in Practice 2024;28(10):58-62
- CountryChina
- Language:Chinese
- Abstract: Objective To explore the relationships of β2-microglobulin(β2-MG),retinol bind-ing protein(RBP)and aquaporin-2(AQP2)in serum and urine with the severity of hydronephrosis induced by ureteropelvic junction obstruction(UPJO)in children.Methods Sixty children with hy-dronephrosis who underwent surgery for UPJO at the Department of Urology of the Sixth People's Hos-pital of Nanning were selected as hydronephrosis group.According to the severity of hydronephrosis,they were divided into mild group(n=13),moderate group(n=22),and severe group(n=25).Meanwhile,60 healthy children in the same period were selected as the control group.The serum and urine levels of β2-MG,RBP and AQP2 were compared between control group and children with hydronephrosis of hydronephrosis group.The correlation between the levels of β2-MG,RBP,AQP2 and ultrasound parameters[anteroposterior diameter of renal pelvis(APD),parenchymal thickness(PT)]was analyzed.The receiver operating characteristic(ROC)curves were used to analyze the diagnostic efficacy of β2-MG,RBP and AQP2 in serum and urine for moderate to severe hydrone-phrosis.Results The levels of β2-MG and RBP in serum and urine of the hydronephrosis group were higher than those in the control group,and the levels of AQP2 in serum and urine were lower than those in the control group(P＜0.05).The levels of β2-MG inserum and urine,RBP in urine,and APD from low to high in different groups were as follows:mild group,moderate group to severe group.Urine AQP2 level and PT from high to low in different groups was as follows:mild group,moderate group to severe group(P＜0.05).Serum RBP level in the mild group was lower than those in the moderate group and the severe group(P＜0.05).Urinary AQP2level was negatively correlated with APD and positively correlated with PT(P＜0.05).ROC curve analysis results showed that serum β2-MG,urine β2-MG,urine RBP,urine AQP2 detection had certain diagnostic value in moderate and severe hydronephrosis,and the area under the curve(AUC)was 0.652,0.688,0.859,0.680,respectively.The AUC of urinary RBP in the diagnosis of moderate and severe hydronephrosis was significantly higher than that of other indexes(P＜0.05).Conclusion β2-MG in serum and urine,urine RBP and urine AQP2 are related to the severity of hydronephrosis induced by UPJO in children.Urine RBP level has better diagnostic efficacy for moderate to severe hydrone-phrosis than other indicators.
