Pediatric nephrology (Berlin, Germany) · 2014
Serum suPAR levels help differentiate steroid resistance from steroid-sensitive nephrotic syndrome in children.
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Peng Zhaoyang, Mao Jianhua, Chen Xuejun, Cai Fengqing, Gu Weizhong, Fu Haidong, Shen Huijun, Wang Jingjing, Jin Xia, Zhu Xiujuan, Liu Aimin, Shu Qiang, Du Lizhong
Аннотация
BACKGROUND: Soluble urokinase plasminogen activator receptor (suPAR) has been regarded as a permeability factor in proteinuria, though its role in primary nephrotic syndrome remains to be elucidated further.
METHODS: Plasma samples and clinical information from 176 children with primary nephrotic syndrome were collected and concentrations of suPAR were measured. We evaluated the correlation between suPAR concentrations and clinical features, and the value of the plasma suPAR level in predicting steroid-resistant nephrotic syndrome (SRNS).
RESULTS: There is a significant difference in plasma suPAR concentration between SRNS and steroid-sensitive nephrotic syndrome (SSNS) groups (3,744.1 ± 2,226.0 vs. 2,153.5 ± 1,167.0, p < 0.05). The area under the curve (AUC) was 0.80, with p < 0.001 for the receiver operating characteristic (ROC) curve analysis using suPAR to predict SRNS. The suspicious range for predicting SRNS was estimated to be 1,907.0 pg/ml to 3,043.5 pg/ml (χ(2) = 14.775, p = 0.001).
CONCLUSIONS: From ROC curve analysis, we demonstrated the significance of the suPAR level in predicting SRNS with a high specificity but low sensitivity. However, the clinical value of suPAR to predict steroid resistance and guide therapy remains to be investigated further.
METHODS: Plasma samples and clinical information from 176 children with primary nephrotic syndrome were collected and concentrations of suPAR were measured. We evaluated the correlation between suPAR concentrations and clinical features, and the value of the plasma suPAR level in predicting steroid-resistant nephrotic syndrome (SRNS).
RESULTS: There is a significant difference in plasma suPAR concentration between SRNS and steroid-sensitive nephrotic syndrome (SSNS) groups (3,744.1 ± 2,226.0 vs. 2,153.5 ± 1,167.0, p < 0.05). The area under the curve (AUC) was 0.80, with p < 0.001 for the receiver operating characteristic (ROC) curve analysis using suPAR to predict SRNS. The suspicious range for predicting SRNS was estimated to be 1,907.0 pg/ml to 3,043.5 pg/ml (χ(2) = 14.775, p = 0.001).
CONCLUSIONS: From ROC curve analysis, we demonstrated the significance of the suPAR level in predicting SRNS with a high specificity but low sensitivity. However, the clinical value of suPAR to predict steroid resistance and guide therapy remains to be investigated further.