Journal
JOURNAL OF TRACE ELEMENTS IN MEDICINE AND BIOLOGY
Volume 18, Issue 2, Pages 163-171Publisher
ELSEVIER GMBH, URBAN & FISCHER VERLAG
DOI: 10.1016/j.jtemb.2004.09.003
Keywords
Parkinson's disease; element homeostasis; inter-element relation; serum; early PD; severe PD
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Trace elements have been postulated to play a role in Parkinson's disease (PD). In order to elucidate whether changes in the serum levels of trace elements reflect the progression of PD, we assessed serum levels of 12 elements (Na, K, Fe, Al, Cu, Zn, Ca, Mg, Mn, Si, P and S) in early PD, severe PD and normal subjects, using inductively coupled plasma atomic emission spectrometry. The concentrations in mumol/ml, the relative mole percentage distribution and inter-element relations were computed. Statistical analysis of these data showed a definite pattern of variation among certain elements in early and severe PD compared to controls. In both early and severe PD serum, Al and S concentrations were significantly decreased (p < 0.05) compared to the controls. Fe (p < 0.01) and Zn (p < 0.05) concentrations were significantly lower in severe PD, while K, Mg, Cu (p < 0.0 1) and P (p < 0.05) concentrations were higher in early and severe PD compared to the controls. The data revealed an imbalance in the inter-element relations in both early and severe PD serum compared to controls, as shown by the direct and inverse correlations. These results suggest a disturbance in the element homeostasis during the progression of PD. (C) 2004 Elsevier GmbH All rights reserved.
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