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  • Title: Ceruloplasmin is increased in cerebrospinal fluid in Alzheimer's disease but not Parkinson's disease.
    Author: Loeffler DA, DeMaggio AJ, Juneau PL, Brickman CM, Mashour GA, Finkelman JH, Pomara N, LeWitt PA.
    Journal: Alzheimer Dis Assoc Disord; 1994; 8(3):190-7. PubMed ID: 7986488.
    Abstract:
    Although the pathophysiology of Alzheimer's disease (AD) and Parkinson's disease (PD) is unknown, altered brain antioxidative mechanisms have been found in both disorders. Ceruloplasmin (CP) and transferrin (TF) interact to limit concentrations of free ferrous iron (Fe2+), and thus play an important role in antioxidant defense in serum; both proteins are also produced in brain, where their significance as antioxidants is unknown. We quantified concentrations of CP and TF by immunoassay in AD (n = 17) and PD (n = 12) cerebrospinal fluid (CSF) to determine whether these proteins could serve as disease markers. CP was increased versus aged normal subjects (n = 11) in AD (p < 0.05) but not PD CSF, whereas TF concentrations did not differ between groups. CP levels have been reported to be elevated in some brain regions in AD, and increased CP in AD CSF may reflect this finding. Systemic inflammation and oxidative stress are major factors stimulating hepatic CP synthesis, and it remains to be determined whether increased CP concentrations in AD CSF and brain follow from similar mechanisms.
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