Widespread Decreases in Cerebral Copper Are Common to Parkinson's Disease Dementia and Alzheimer's Disease Dementia.

This may be significant as several studies have observed Fe levels to increase with aging (Hebbrecht et al., 1999 ; Zecca et al., 2004 ; Pfefferbaum et al., 2009 ; Bilgic et al., 2012 ; Ramos et al., 2014b ; Pirpamer et al., 2016 ).

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