文章基本信息

标题：Indoxyl sulfate, homocysteine, and antioxidant capacities in patients at different stages of chronic kidney disease
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作者：Cheng-Hsu Chen ; Shih-Chien Huang ; En-Ling Yeh 等
期刊名称：Nutrition Research and Practice
印刷版ISSN：1976-1457
出版年度：2022
卷号：16
期号：4
页码：464-475
DOI：10.4162/nrp.2022.16.4.464
语种：English
出版社：KoreaMed Synapse
摘要：BACKGROUND/OBJECTIVES Increased levels of uremic toxins and decreased antioxidant capacity have a significant impact on the progression of chronic kidney disease (CKD). However, it remains unclear whether they interact with each other to mediate the damage of kidney function. The purpose of this study was to investigate whether uremic toxins (i.e., homocysteine and indoxyl sulfate [IS]), as well as glutathione-dependent antioxidant enzyme activities are dependently or independently associated with kidney function during different stages of CKD patients. SUBJECTS/METHODS One hundred thirty-two patients diagnosed with CKD at stages 1 to 5 participated in this cross-sectional study. RESULTS Patients who had reached an advanced CKD stage experienced an increase in plasma uremic toxin levels, along with decreased glutathione peroxidase (GSH-Px) activity. Plasma homocysteine, cysteine, and IS concentrations were all positively associated with each other, but negatively correlated to GSH-Px activity levels after adjusting for potential confounders in all CKD patients. Although plasma homocysteine, cysteine, IS, and GSH-Px levels were significantly associated with kidney function, only plasma IS levels still had a significant association with kidney function after these parameters were simultaneously adjusted. In addition, plasma IS could interact with GSH-Px activity to be associated with kidney function. CONCLUSIONS IS plays a more dominant role than homocysteine and GSH-Px activity in relation to kidney function.
关键词：Uremic toxins;homocysteine;indoxyl sulfate;glutathione peroxidase;chronic kidney disease