Journal
JOURNAL OF NEURAL TRANSMISSION
Volume 113, Issue 11, Pages 1763-1769Publisher
SPRINGER WIEN
DOI: 10.1007/s00702-006-0485-7
Keywords
CSF; copper; Alzheimer's disease
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Increasing evidence links Alzheimer's disease (AD) with misbalanced Cu homeostasis. Recently, we have shown that dietary Cu supplementation in a transgenic mouse model for AD increases bioavailable brain Cu levels, restores Cu, Zn-super oxide-1 activity, prevents premature death, and lowers A beta levels. In the present report we investigated AD patients with normal levels of A beta 42, Tau and Phospho-Tau in the cerebrospinal fluid (CSF) in comparison with AD patients exhibiting aberrant levels in these CSF biomarkers. The influence of these cerebrospinal fluid (CSF) diagnostic markers with primary dependent variables blood Cu, Zn and ceruloplasmin (CB) and secondary with CSF profiles of Cu, Zn and neurotransmitters was determined. Multivariate tests revealed a significant effect of factor diagnostic group (no AD diagnosis in CSF or AD diagnosis in CSF) for variables plasma Cu and CB (F = 4.80; df = 2, 23; p = 0.018). Subsequent univariate tests revealed significantly reduced plasma Cu (-12.7%; F = 7.05; df = 1, 25; p = 0.014) and CB (-14.1%; F = 9.44; df = 1, 24; p = 0.005) levels in patients with aberrant CSF biomarker concentrations. Although only AD patients were included, the reduced plasma Cu and CB levels in patients with a CSF diagnosis of advanced AD supports previous observations that a mild Cu deficiency might contribute to AD progression.
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