Trace metal dyshomeostasis has been linked to loss of cognitive performance. In particular, a disturbance in the regulation of copper (Cu), characterized by an increase in circulating Cu not bound to ceruloplasmin (non-Cp Cu), is thought to play a role in the development of Alzheimer disease (AD) and other neurodegenerative diseases in the aging population. Non-Cp Cu is redox active and its toxicity is thought to result from its ability to accelerate oxidative stress and advanced glycation endproduct (AGE) formation, leading to extracellular matrix damage in tissues including the brain. Cognitive loss is increasingly recognized to be a feature of type 2 diabetes and the increased AGE formation characteristic of diabetes may play a role in the development of this complication. There also is evidence for copper dyshomeostasis in type 2 diabetes, and therefore this could contribute to…
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