Blood concentration of aminothiols in children with relapse of nephrotic syndrome  

作　　者：Marcin Tkaczyk Monika Miklaszewska Jolanta Lukamowicz Wojciech Fendler 

机构地区：[1]Division of Nephrology,Polish Mother's Memorial Hospital Research Institute of lodz,281/289 Rzgowska st.93-338lodz,Poland [2]Department of Pediatric Nephrology,Collegium Medicum of Jagiellonian University,Wielicka 26530-663 Krakow,Poland [3]Center of Medical Diagnostics,Polish Mother's Memorial Hospital Research Institute of lodz,Poland,281/289 Rzgowska st.93-338 lodz,Poland [4]Medical University of lodz,al.Kosciuszki 4,lodz,Poland

出　　处：《World Journal of Pediatrics》2016年第3期353-359,共7页世界儿科杂志（英文版）

基　　金：The study was supported by KBN 2 P05E 03426 grant of Polish Ministry of Science.

摘　　要：Background:The role of idiopathic nephrotic syndrome(INS)in the pathogenesis of atherosclerosis in childhood has not been clearly elucidated.However,antioxidative defense in INS is thought to be imbalanced.This study aimed to assess the changes of plasma concentration of selected aminothiols in the blood of children with INS at various stages of the disease.Methods:This cross-sectional study was conducted in 125 children aged 2-18 years.The children were divided into 4 groups:group A,early relapse(n=37);group B,early remission for 4-6 weeks from the onset(n=37);group C,late steroid-free remission(n=31);and group D,long-term remission for 2-5 years(n=20).Control group(E)consisted of 30 age-and gender-matched healthy children.The study protocol comprised an analysis of plasma concentrations of glutathione,homocysteine,cysteine and cysteinylglycine by high-performance liquid chromatography.Fractions of protein-bound and free aminothiols were measured.Endothelial injury was assessed by thrombomodulin,PAI-1 concentration,and von Willebrand factor activity.Results:The children with INS had unbalanced aminothiol metabolism only in relapse and early remission,that shifted towards increased oxidative processes.Administration of cyclosporine A caused a significant increase in homocysteine and cysteine concentration.Changes in aminothiol metabolism were significantly related to endothelial injury.Conclusion:The fi ndings of this study may be helpful in elucidating the pathogenesis of premature atherosclerosis in patients with INS refractory to the treatment or in the case of frequent relapse.

关 键 词：AMINOTHIOLS CHILDREN cyclosporine A HOMOCYSTEINE nephrotic syndrome 

分 类 号：R58[医药卫生—内分泌]