Medizinische Universität Graz Austria/Österreich - Forschungsportal - Medical University of Graz
Gewählte Publikation:
SHR Neuro Krebs Kardio Lipid Stoffw Microb
Krebs, N; Langkammer, C; Goessler, W; Ropele, S; Fazekas, F; Yen, K; Scheurer, E.
Assessment of trace elements in human brain using inductively coupled plasma mass spectrometry.
J Trace Elem Med Biol. 2014; 28(1):1-7
Doi: 10.1016/j.jtemb.2013.09.006
Web of Science
PubMed
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FullText_MUG
- Führende Autor*innen der Med Uni Graz
- Krebs Nikolaus
- Co-Autor*innen der Med Uni Graz
- Fazekas Franz
- Langkammer Christian
- Ropele Stefan
- Scheurer Eva
- Yen Kathrin
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- Abstract:
- Recent brain research reveals a major role of trace elements in various diseases such as multiple sclerosis, Alzheimer's and Wilson's disease. The majority of published tissue concentrations dates back decades, and was assessed with various methods. Little is known about hemispherical differences, the correlation of trace elements or age-dependent changes in the human brain. Thus, the aim of this study was to examine trace element concentrations in different human brain regions after whole brain formalin fixation. 549 samples of 13 brain regions were investigated in 11 deceased subjects without known history of brain pathology. Regional wet-to-dry mass ratios and concentrations of iron, copper, magnesium, manganese, calcium and zinc were determined using inductively coupled plasma mass spectrometry. Cortical gray matter revealed higher water content (wet-to-dry mass ratios 5.84-6.40) than white matter regions (wet-to-dry mass ratios 2.95-3.05). Element concentrations displayed specific regional differences. Good linear correlation of concentrations between elements was found for iron/copper as well as for manganese/magnesium (Spearman's rank correlation coefficient 0.74 and 0.65, respectively). Significant inter-hemispherical differences were found for copper in occipital white matter, for magnesium and calcium in putamen and for iron and copper in temporal white matter. An age dependent increase was seen in cortical gray matter for calcium, for magnesium in all regions except in cortical gray matter, for copper in substantia nigra and for zinc in occipital cortex. The presented trace element concentrations can serve as a fundamental basis for further brain research. Wet-to-dry mass ratios allow a comparison with reference data from other studies. Copyright © 2013 Elsevier GmbH. All rights reserved.
- Find related publications in this database (using NLM MeSH Indexing)
- Aged -
- Aged, 80 and over -
- Brain - metabolism
- Female -
- Humans -
- Male -
- Mass Spectrometry - methods
- Middle Aged -
- Reproducibility of Results -
- Trace Elements - analysis
- Find related publications in this database (Keywords)
- ICP-MS
- Human brain
- Trace elements
- Metal-based neurodegeneration
- Iron