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Nutrients 2016, 8(12), 826; doi:10.3390/nu8120826

Comparative Study on Trace Element Excretions between Nonanuric and Anuric Patients Undergoing Continuous Ambulatory Peritoneal Dialysis

1
Department of Clinical Nutrition, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei, China
2
Department of Nutrition and Food Hygiene, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei, China
3
Department of Nephrology, Tongji Hospital, Huazhong University of Science and Technology, Wuhan 430030, Hubei, China
4
Department of Epidemiology and Biostatistics, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei, China
These authors contributed equally to this work.
*
Authors to whom correspondence should be addressed.
Received: 28 October 2016 / Revised: 26 November 2016 / Accepted: 15 December 2016 / Published: 20 December 2016
(This article belongs to the Special Issue Nutrition and Chronic Kidney Disease)
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Abstract

Few studies have been reported on alterations of trace elements (TE) in peritoneal dialysis patients. Our objective was to investigate and assess the characteristics of daily TE excretions in continuous ambulatory peritoneal dialysis (CAPD) patients. This cross-sectional study included 61 CAPD patients (nonanuric/anuric: 45/16) and 11 healthy subjects in Wuhan, China between 2013 and 2014. The dialysate and urine of patients and urine of healthy subjects were collected. The concentrations of copper (Cu), zinc (Zn), selenium (Se), molybdenum (Mo), and arsenic (As) in dialysate and urine were determined using inductively coupled plasma mass spectrometer (ICP-MS). Various clinical variables were obtained from automatic biochemical analyzer. Daily Cu, Zn, Se, and Mo excretions in nonanuric patients were higher than healthy subjects, while arsenic excretion in anuric patients was lower. A strong and positive correlation was observed between Se and Mo excretion in both dialysate (β = 0.869, p < 0.010) and urine (β = 0.968, p < 0.010). Furthermore, the clinical variables associated with Se excretion were found to be correlated with Mo excretion. Our findings indicated that nonanuric CAPD patients may suffer from deficiency of some essential TEs, while anuric patients are at risk of arsenic accumulation. A close association between Se and Mo excretion was also found. View Full-Text
Keywords: trace element; continuous ambulatory peritoneal dialysis; excretion; selenium; molybdenum trace element; continuous ambulatory peritoneal dialysis; excretion; selenium; molybdenum
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Xiang, S.; Yao, Y.; Wan, Y.; Liang, W.; Meng, R.; Jin, Q.; Wu, N.; Xu, F.; Ying, C.; Zuo, X. Comparative Study on Trace Element Excretions between Nonanuric and Anuric Patients Undergoing Continuous Ambulatory Peritoneal Dialysis. Nutrients 2016, 8, 826.

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