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Changes in brain metallome/metabolome pattern due to a single i.v. injection of manganese in rats.

PLoS ONE 10:e0138270 (2015)
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Exposure to high concentrations of Manganese (Mn) is known to potentially induce an accumulation in the brain, leading to a Parkinson related disease, called manganism. Versatile mechanisms of Mn-induced brain injury are discussed, with inactivation of mitochondrial defense against oxidative stress being a major one. So far, studies indicate that the main Mn-species entering the brain are low molecular mass (LMM) compounds such as Mn-citrate. Applying a single low dose MnCl2 injection in rats, we observed alterations in Mn-species pattern within the brain by analysis of aqueous brain extracts by size-exclusion chromatography-inductively coupled plasma mass spectrometry (SEC-ICP-MS). Additionally, electrospray ionization-ion cyclotron resonance-Fourier transform-mass spectrometry (ESI-ICR/FT-MS) measurement of methanolic brain extracts revealed a comprehensive analysis of changes in brain metabolisms after the single MnCl2 injection. Major alterations were observed for amino acid, fatty acid, glutathione, glucose and purine/pyrimidine metabolism. The power of this metabolomic approach is the broad and detailed overview of affected brain metabolisms. We also correlated results from the metallomic investigations (Mn concentrations and Mn-species in brain) with the findings from metabolomics. This strategy might help to unravel the role of different Mn-species during Mn-induced alterations in brain metabolism.
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Publication type Article: Journal article
Document type Scientific Article
Language english
Publication Year 2015
HGF-reported in Year 2015
ISSN (print) / ISBN 1932-6203
Journal PLoS ONE
Quellenangaben Volume: 10, Issue: 9, Pages: , Article Number: e0138270 Supplement: ,
Publisher Public Library of Science (PLoS)
Publishing Place Lawrence, Kan.
Reviewing status Peer reviewed
Institute(s) Research Unit BioGeoChemistry and Analytics (BGC)
German Center for Diabetes Reseach (DZD)
CF Comparative Medicine (AVM)
POF-Topic(s) 30202 - Environmental Health
90000 - German Center for Diabetes Research
Research field(s) Environmental Sciences
Genetics and Epidemiology
PSP Element(s) G-504800-002
G-504800-001
G-501900-481
G-500900-001
PubMed ID 26383269
Scopus ID 84946599733
Erfassungsdatum 2015-10-07