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Published on: July 19, 2018
Cu/Zn ratios are associated with nutritional status, oxidative stress, inflammation, and immune abnormalities in
Chih-Hung Guo1, Pei-Chung Chen, Maw-Sheng Yeh
1Institute of Biomedical Nutrition, Hung Kuang University, Taichung 433, Taiwan, ROC.
Objectives:
We evaluated the relationship of the plasma copper/zinc (Cu/Zn) ratio with nutritional status, inflammation, oxidative stress, and immune function in peritoneal dialysis patients.
Design And Methods:
Clinical and laboratory parameters were measured in patients (n=45) and age- and sex-matched healthy individuals (n=30).
Results:
There were significant negative correlations of the Cu/Zn ratio with nutrition-related parameters (body mass index [BMI], creatinine, hemoglobin, and albumin) and antioxidant (vitamin C and E) levels and positive correlations of the Cu/Zn ratio with the levels of high sensitivity C-reactive protein (hs-CRP) and oxidation products (malondialdehyde [MDA] and protein carbonyl). The Cu/Zn ratio was negatively correlated with the percentages of B- and T-lymphocyte subsets and the ratio of CD4/CD8 antigens.
Conclusions:
In peritoneal dialysis patients, elevated Cu/Zn ratios are associated with malnutrition, increased oxidative stress, inflammation, and disrupted immune status.
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