Abstract
The metabolic disorder Wilson’s disease (WD) is caused by copper accumulation in the tissues due to a biallelic pathogenic mutation of the gene ATP7B, encoding intracellular copper transporter ATPase-7B. As copper is a redox active metal; aberrations in its homeostasis may create favourable conditions for superoxide-yielding redox cycling and oxidative damage to the cells. We tried to characterise antioxidant defence in WD patients and to evaluate whether it is related to liver function. The blood glutathione concentration, the activity of manganese-SOD (MnSOD), catalase (Cat), glutathione peroxidase, and glutathione S-transferase glutathione (GST), and serum antioxidant potential (AOP-450) were measured in WD treatment-naive patients and healthy controls and correlated with clinical data. The blood glutathione concentration, the activity of MnSOD, Cat, glutathione peroxidase, and GST and AOP-450 are significantly decreased in WD patients. There was a positive correlation of AOP-450 with AST. Moreover, the Cat and GST activity as well as AOP-450 strongly correlated with parameters of synthetic liver function. MnSOD activity correlated positively with ALT and AST.The blood glutathione concentration, the activity of MnSOD, Cat, glutathione peroxidase, and GST and AOP-450 are significantly decreased in WD patients. There was a positive correlation of AOP-450 with AST. Moreover, the Cat and GST activity as well as AOP-450 strongly correlated with parameters of synthetic liver function. MnSOD activity correlated positively with ALT and AST. Liver injury in course of WD is linked with decreased antioxidant capacity.
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Abbreviations
- WD:
-
Wilson’s disease
- OMIM:
-
Online Mendelian Inheritance in Man
- Cu:
-
Copper
- ATP7B:
-
ATPase 7B
- Cat:
-
Catalase
- GPX:
-
Glutathione peroxidase
- SOD2:
-
Mitochondrial magnesium superoxide dismutase
- MnSOD:
-
Manganese superoxide dismutase
- SGT:
-
Plasma glutathione S-transferase
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Funding
This study was supported by grant N N402 375239 from the Polish National Ministry of Education and Science.
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Highlights
• Glutathione concentration and activity of manganese-SOD, catalase, glutathione peroxidase, and S-transferase glutathione are significantly decreased in Wilson disease patients.
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Gromadzka, G., Przybyłkowski, A., Litwin, T. et al. Antioxidant Capacity Is Decreased in Wilson’s Disease and Correlates to Liver Function. Biol Trace Elem Res 201, 1582–1587 (2023). https://doi.org/10.1007/s12011-022-03277-5
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DOI: https://doi.org/10.1007/s12011-022-03277-5