Serum oxidized albumin and cardiovascular mortality in normoalbuminemic hemodialysis patients: a cohort study.

BACKGROUND: Substantial evidence suggests that increased oxidative stress in hemodialysis (HD) patients may contribute to cardiovascular complications. Oxidative modifications of human serum albumin (HSA), the largest thiol pool in plasma, alter its biological properties and may affect its antioxida...

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Main Authors: Paik Seong Lim, Yachung Jeng, Ming Ying Wu, Mei-Ann Pai, Tsai-Kun Wu, Chia-San Liu, Chan Hsu Chen, Yuan-Chuan Kuo, Shiaw-Wen Chien, Hung Ping Chen
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2013-01-01
Series:PLoS ONE
Online Access:http://europepmc.org/articles/PMC3726598?pdf=render
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author Paik Seong Lim
Yachung Jeng
Ming Ying Wu
Mei-Ann Pai
Tsai-Kun Wu
Chia-San Liu
Chan Hsu Chen
Yuan-Chuan Kuo
Shiaw-Wen Chien
Hung Ping Chen
author_facet Paik Seong Lim
Yachung Jeng
Ming Ying Wu
Mei-Ann Pai
Tsai-Kun Wu
Chia-San Liu
Chan Hsu Chen
Yuan-Chuan Kuo
Shiaw-Wen Chien
Hung Ping Chen
author_sort Paik Seong Lim
collection DOAJ
description BACKGROUND: Substantial evidence suggests that increased oxidative stress in hemodialysis (HD) patients may contribute to cardiovascular complications. Oxidative modifications of human serum albumin (HSA), the largest thiol pool in plasma, alter its biological properties and may affect its antioxidant potential in HD patients. METHODS: We conducted a long-term follow-up study in a cohort of normoalbuminemic HD patients to examine the impact of redox state of serum albumin on patients' survival by measuring the human nonmercaptoalbumin (HNA) fraction of HSA. RESULTS: After adjusting for potential demographic, anthropometric, and clinical confounders, a positive association of HNA level with the risk of death from cardiovascular disease (CVD) and all-cause mortality was observed in normoalbuminemic HD patients. Using stratified analysis, we found a stronger association between HNA level and the risk of death from CVD and all-cause mortality in patients with pre-existing CVD. CONCLUSIONS: Serum HNA level is a positive predictor of mortality in normoalbuminemic HD patients, especially among those with pre-existing CVD. Increased oxidative stress resulting from biological changes in serum albumin levels could contribute to accelerated atherosclerosis and the development of cardiovascular disease in HD patients.
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spelling doaj.art-cf6099f5868a410b9392768b3cb9177a2022-12-22T03:36:59ZengPublic Library of Science (PLoS)PLoS ONE1932-62032013-01-0187e7082210.1371/journal.pone.0070822Serum oxidized albumin and cardiovascular mortality in normoalbuminemic hemodialysis patients: a cohort study.Paik Seong LimYachung JengMing Ying WuMei-Ann PaiTsai-Kun WuChia-San LiuChan Hsu ChenYuan-Chuan KuoShiaw-Wen ChienHung Ping ChenBACKGROUND: Substantial evidence suggests that increased oxidative stress in hemodialysis (HD) patients may contribute to cardiovascular complications. Oxidative modifications of human serum albumin (HSA), the largest thiol pool in plasma, alter its biological properties and may affect its antioxidant potential in HD patients. METHODS: We conducted a long-term follow-up study in a cohort of normoalbuminemic HD patients to examine the impact of redox state of serum albumin on patients' survival by measuring the human nonmercaptoalbumin (HNA) fraction of HSA. RESULTS: After adjusting for potential demographic, anthropometric, and clinical confounders, a positive association of HNA level with the risk of death from cardiovascular disease (CVD) and all-cause mortality was observed in normoalbuminemic HD patients. Using stratified analysis, we found a stronger association between HNA level and the risk of death from CVD and all-cause mortality in patients with pre-existing CVD. CONCLUSIONS: Serum HNA level is a positive predictor of mortality in normoalbuminemic HD patients, especially among those with pre-existing CVD. Increased oxidative stress resulting from biological changes in serum albumin levels could contribute to accelerated atherosclerosis and the development of cardiovascular disease in HD patients.http://europepmc.org/articles/PMC3726598?pdf=render
spellingShingle Paik Seong Lim
Yachung Jeng
Ming Ying Wu
Mei-Ann Pai
Tsai-Kun Wu
Chia-San Liu
Chan Hsu Chen
Yuan-Chuan Kuo
Shiaw-Wen Chien
Hung Ping Chen
Serum oxidized albumin and cardiovascular mortality in normoalbuminemic hemodialysis patients: a cohort study.
PLoS ONE
title Serum oxidized albumin and cardiovascular mortality in normoalbuminemic hemodialysis patients: a cohort study.
title_full Serum oxidized albumin and cardiovascular mortality in normoalbuminemic hemodialysis patients: a cohort study.
title_fullStr Serum oxidized albumin and cardiovascular mortality in normoalbuminemic hemodialysis patients: a cohort study.
title_full_unstemmed Serum oxidized albumin and cardiovascular mortality in normoalbuminemic hemodialysis patients: a cohort study.
title_short Serum oxidized albumin and cardiovascular mortality in normoalbuminemic hemodialysis patients: a cohort study.
title_sort serum oxidized albumin and cardiovascular mortality in normoalbuminemic hemodialysis patients a cohort study
url http://europepmc.org/articles/PMC3726598?pdf=render
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